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-rw-r--r--Documentation/ABI/stable/sysfs-block9
-rw-r--r--Documentation/ABI/stable/sysfs-driver-dma-idxd35
-rw-r--r--Documentation/ABI/stable/sysfs-driver-mlxreg-io81
-rw-r--r--Documentation/ABI/stable/sysfs-module2
-rw-r--r--Documentation/ABI/testing/configfs-usb-gadget-mass-storage10
-rw-r--r--Documentation/ABI/testing/debugfs-cros-ec22
-rw-r--r--Documentation/ABI/testing/debugfs-driver-habanalabs38
-rw-r--r--Documentation/ABI/testing/procfs-smaps_rollup1
-rw-r--r--Documentation/ABI/testing/sysfs-amd-pmc13
-rw-r--r--Documentation/ABI/testing/sysfs-amd-pmf13
-rw-r--r--Documentation/ABI/testing/sysfs-bus-bcma2
-rw-r--r--Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x8
-rw-r--r--Documentation/ABI/testing/sysfs-bus-counter35
-rw-r--r--Documentation/ABI/testing/sysfs-bus-cxl305
-rw-r--r--Documentation/ABI/testing/sysfs-bus-event_source-devices-caps18
-rw-r--r--Documentation/ABI/testing/sysfs-bus-fcoe2
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio134
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-bno05581
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-cdc-ad774611
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-proximity2
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-sx93241
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-temperature-max3185631
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-temperature-max3186520
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-thermocouple18
-rw-r--r--Documentation/ABI/testing/sysfs-bus-iio-timer-stm328
-rw-r--r--Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub8
-rw-r--r--Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw57
-rw-r--r--Documentation/ABI/testing/sysfs-bus-thunderbolt4
-rw-r--r--Documentation/ABI/testing/sysfs-bus-usb11
-rw-r--r--Documentation/ABI/testing/sysfs-class-hwmon9
-rw-r--r--Documentation/ABI/testing/sysfs-class-power5
-rw-r--r--Documentation/ABI/testing/sysfs-class-pwm2
-rw-r--r--Documentation/ABI/testing/sysfs-class-rtrs-client2
-rw-r--r--Documentation/ABI/testing/sysfs-class-rtrs-server2
-rw-r--r--Documentation/ABI/testing/sysfs-class-typec8
-rw-r--r--Documentation/ABI/testing/sysfs-class-usb_power_delivery240
-rw-r--r--Documentation/ABI/testing/sysfs-class-vduse33
-rw-r--r--Documentation/ABI/testing/sysfs-devices-hisi_ptt61
-rw-r--r--Documentation/ABI/testing/sysfs-devices-platform-ACPI-TAD2
-rw-r--r--Documentation/ABI/testing/sysfs-devices-platform-soc-ipa62
-rw-r--r--Documentation/ABI/testing/sysfs-devices-power2
-rw-r--r--Documentation/ABI/testing/sysfs-devices-soc14
-rw-r--r--Documentation/ABI/testing/sysfs-devices-system-cpu13
-rw-r--r--Documentation/ABI/testing/sysfs-driver-habanalabs12
-rw-r--r--Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update61
-rw-r--r--Documentation/ABI/testing/sysfs-driver-qat49
-rw-r--r--Documentation/ABI/testing/sysfs-driver-ufs46
-rw-r--r--Documentation/ABI/testing/sysfs-driver-xen-blkback2
-rw-r--r--Documentation/ABI/testing/sysfs-driver-xen-blkfront2
-rw-r--r--Documentation/ABI/testing/sysfs-firmware-qemu_fw_cfg5
-rw-r--r--Documentation/ABI/testing/sysfs-fs-f2fs54
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-livepatch8
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-ksm2
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers25
-rw-r--r--Documentation/ABI/testing/sysfs-kernel-slab4
-rw-r--r--Documentation/ABI/testing/sysfs-platform-asus-wmi41
-rw-r--r--Documentation/ABI/testing/sysfs-platform-brcmstb-memc15
-rw-r--r--Documentation/ABI/testing/sysfs-platform-chipidea-usb26
-rw-r--r--Documentation/ABI/testing/sysfs-power2
-rw-r--r--Documentation/Kconfig23
-rw-r--r--Documentation/PCI/endpoint/index.rst2
-rw-r--r--Documentation/PCI/endpoint/pci-vntb-function.rst129
-rw-r--r--Documentation/PCI/endpoint/pci-vntb-howto.rst167
-rw-r--r--Documentation/PCI/pci-iov-howto.rst7
-rw-r--r--Documentation/PCI/sysfs-pci.rst2
-rw-r--r--Documentation/RCU/Design/Requirements/Requirements.rst10
-rw-r--r--Documentation/RCU/checklist.rst17
-rw-r--r--Documentation/RCU/lockdep.rst2
-rw-r--r--Documentation/RCU/rcu_dereference.rst14
-rw-r--r--Documentation/RCU/stallwarn.rst6
-rw-r--r--Documentation/RCU/whatisRCU.rst47
-rw-r--r--Documentation/accounting/delay-accounting.rst2
-rw-r--r--Documentation/admin-guide/README.rst121
-rw-r--r--Documentation/admin-guide/acpi/dsdt-override.rst13
-rw-r--r--Documentation/admin-guide/cgroup-v1/memcg_test.rst2
-rw-r--r--Documentation/admin-guide/cgroup-v1/memory.rst4
-rw-r--r--Documentation/admin-guide/cgroup-v2.rst200
-rw-r--r--Documentation/admin-guide/device-mapper/writecache.rst18
-rw-r--r--Documentation/admin-guide/devices.rst7
-rw-r--r--Documentation/admin-guide/dynamic-debug-howto.rst246
-rw-r--r--Documentation/admin-guide/efi-stub.rst4
-rw-r--r--Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst14
-rw-r--r--Documentation/admin-guide/hw-vuln/spectre.rst9
-rw-r--r--Documentation/admin-guide/kdump/vmcoreinfo.rst2
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt266
-rw-r--r--Documentation/admin-guide/media/vimc.dot4
-rw-r--r--Documentation/admin-guide/media/vimc.rst19
-rw-r--r--Documentation/admin-guide/media/vivid.rst14
-rw-r--r--Documentation/admin-guide/mm/cma_debugfs.rst10
-rw-r--r--Documentation/admin-guide/mm/concepts.rst2
-rw-r--r--Documentation/admin-guide/mm/damon/index.rst9
-rw-r--r--Documentation/admin-guide/mm/damon/lru_sort.rst294
-rw-r--r--Documentation/admin-guide/mm/damon/reclaim.rst8
-rw-r--r--Documentation/admin-guide/mm/damon/start.rst13
-rw-r--r--Documentation/admin-guide/mm/damon/usage.rst33
-rw-r--r--Documentation/admin-guide/mm/hugetlbpage.rst6
-rw-r--r--Documentation/admin-guide/mm/index.rst2
-rw-r--r--Documentation/admin-guide/mm/ksm.rst36
-rw-r--r--Documentation/admin-guide/mm/memory-hotplug.rst4
-rw-r--r--Documentation/admin-guide/mm/multigen_lru.rst162
-rw-r--r--Documentation/admin-guide/mm/shrinker_debugfs.rst135
-rw-r--r--Documentation/admin-guide/mm/transhuge.rst16
-rw-r--r--Documentation/admin-guide/mm/userfaultfd.rst41
-rw-r--r--Documentation/admin-guide/perf/alibaba_pmu.rst100
-rw-r--r--Documentation/admin-guide/perf/hns3-pmu.rst136
-rw-r--r--Documentation/admin-guide/perf/index.rst2
-rw-r--r--Documentation/admin-guide/pm/amd-pstate.rst76
-rw-r--r--Documentation/admin-guide/pm/cpuidle.rst15
-rw-r--r--Documentation/admin-guide/sysctl/kernel.rst27
-rw-r--r--Documentation/admin-guide/sysctl/net.rst36
-rw-r--r--Documentation/admin-guide/sysctl/vm.rst13
-rw-r--r--Documentation/admin-guide/tainted-kernels.rst7
-rw-r--r--Documentation/arm/google/chromebook-boot-flow.rst69
-rw-r--r--Documentation/arm/index.rst3
-rw-r--r--Documentation/arm/samsung-s3c24xx/cpufreq.rst3
-rw-r--r--Documentation/arm/stm32/stm32-dma-mdma-chaining.rst415
-rw-r--r--Documentation/arm/uefi.rst4
-rw-r--r--Documentation/arm64/elf_hwcaps.rst38
-rw-r--r--Documentation/arm64/memory.rst10
-rw-r--r--Documentation/arm64/silicon-errata.rst10
-rw-r--r--Documentation/arm64/sme.rst3
-rw-r--r--Documentation/arm64/sve.rst22
-rw-r--r--Documentation/atomic_bitops.txt10
-rw-r--r--Documentation/block/index.rst1
-rw-r--r--Documentation/block/null_blk.rst22
-rw-r--r--Documentation/block/ublk.rst253
-rw-r--r--Documentation/bpf/bpf_design_QA.rst25
-rw-r--r--Documentation/bpf/btf.rst49
-rw-r--r--Documentation/bpf/clang-notes.rst30
-rw-r--r--Documentation/bpf/index.rst3
-rw-r--r--Documentation/bpf/instruction-set.rst320
-rw-r--r--Documentation/bpf/kfuncs.rst193
-rw-r--r--Documentation/bpf/libbpf/libbpf_naming_convention.rst13
-rw-r--r--Documentation/bpf/linux-notes.rst53
-rw-r--r--Documentation/bpf/map_cgroup_storage.rst4
-rw-r--r--Documentation/bpf/map_hash.rst185
-rw-r--r--Documentation/conf.py43
-rw-r--r--Documentation/core-api/asm-annotations.rst (renamed from Documentation/asm-annotations.rst)7
-rw-r--r--Documentation/core-api/bus-virt-phys-mapping.rst220
-rw-r--r--Documentation/core-api/cpu_hotplug.rst2
-rw-r--r--Documentation/core-api/dma-api-howto.rst14
-rw-r--r--Documentation/core-api/dma-api.rst14
-rw-r--r--Documentation/core-api/idr.rst3
-rw-r--r--Documentation/core-api/index.rst8
-rw-r--r--Documentation/core-api/irq/irq-domain.rst2
-rw-r--r--Documentation/core-api/maple_tree.rst217
-rw-r--r--Documentation/core-api/mm-api.rst11
-rw-r--r--Documentation/core-api/printk-formats.rst10
-rw-r--r--Documentation/core-api/protection-keys.rst44
-rw-r--r--Documentation/core-api/wrappers/atomic_bitops.rst18
-rw-r--r--Documentation/core-api/wrappers/atomic_t.rst19
-rw-r--r--Documentation/core-api/wrappers/memory-barriers.rst18
-rw-r--r--Documentation/dev-tools/coccinelle.rst2
-rw-r--r--Documentation/dev-tools/index.rst1
-rw-r--r--Documentation/dev-tools/kasan.rst17
-rw-r--r--Documentation/dev-tools/kmemleak.rst1
-rw-r--r--Documentation/dev-tools/kmsan.rst427
-rw-r--r--Documentation/dev-tools/kselftest.rst38
-rw-r--r--Documentation/dev-tools/kunit/architecture.rst4
-rw-r--r--Documentation/dev-tools/kunit/faq.rst8
-rw-r--r--Documentation/dev-tools/kunit/index.rst18
-rw-r--r--Documentation/dev-tools/kunit/kunit-tool.rst232
-rw-r--r--Documentation/dev-tools/kunit/run_wrapper.rst119
-rw-r--r--Documentation/dev-tools/kunit/running_tips.rst5
-rw-r--r--Documentation/dev-tools/kunit/start.rst138
-rw-r--r--Documentation/dev-tools/kunit/usage.rst6
-rw-r--r--Documentation/devicetree/bindings/Makefile7
-rw-r--r--Documentation/devicetree/bindings/arm/actions.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/airoha.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/altera.yaml12
-rw-r--r--Documentation/devicetree/bindings/arm/amazon,al.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic.yaml4
-rw-r--r--Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/apple.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,cci-400.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml104
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-cpu-debug.yaml81
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml (renamed from Documentation/devicetree/bindings/arm/coresight-cti.yaml)8
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml129
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml129
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml95
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml159
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml93
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml94
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml104
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml137
-rw-r--r--Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml94
-rw-r--r--Documentation/devicetree/bindings/arm/arm,corstone1000.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml (renamed from Documentation/devicetree/bindings/arm/ete.yaml)6
-rw-r--r--Documentation/devicetree/bindings/arm/arm,integrator.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,realview.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml (renamed from Documentation/devicetree/bindings/arm/trbe.yaml)2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml35
-rw-r--r--Documentation/devicetree/bindings/arm/arm,versatile.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml89
-rw-r--r--Documentation/devicetree/bindings/arm/atmel-at91.yaml15
-rw-r--r--Documentation/devicetree/bindings/arm/atmel-sysregs.txt15
-rw-r--r--Documentation/devicetree/bindings/arm/axxia.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml7
-rw-r--r--Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml42
-rw-r--r--Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml118
-rw-r--r--Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt11
-rw-r--r--Documentation/devicetree/bindings/arm/bitmain.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/calxeda.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt49
-rw-r--r--Documentation/devicetree/bindings/arm/coresight.txt402
-rw-r--r--Documentation/devicetree/bindings/arm/cpus.yaml3
-rw-r--r--Documentation/devicetree/bindings/arm/digicolor.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt271
-rw-r--r--Documentation/devicetree/bindings/arm/fsl.yaml121
-rw-r--r--Documentation/devicetree/bindings/arm/intel,keembay.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/intel,socfpga.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt2
-rw-r--r--Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt26
-rw-r--r--Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml47
-rw-r--r--Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt2
-rw-r--r--Documentation/devicetree/bindings/arm/marvell/marvell,ac5.yaml32
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek.yaml32
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml4
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml1
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wed-pcie.yaml43
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml3
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml8
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml3
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml3
-rw-r--r--Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/microchip,sparx5.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/moxart.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt2
-rw-r--r--Documentation/devicetree/bindings/arm/npcm/npcm.yaml7
-rw-r--r--Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/psci.yaml11
-rw-r--r--Documentation/devicetree/bindings/arm/qcom.yaml466
-rw-r--r--Documentation/devicetree/bindings/arm/rda.yaml2
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-rw-r--r--Documentation/devicetree/bindings/arm/rockchip.yaml60
-rw-r--r--Documentation/devicetree/bindings/arm/rockchip/pmu.yaml4
-rw-r--r--Documentation/devicetree/bindings/arm/samsung/samsung-soc.yaml40
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-rw-r--r--Documentation/devicetree/bindings/arm/stm32/stm32.yaml8
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-rw-r--r--Documentation/devicetree/bindings/arm/sunxi.yaml12
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-rw-r--r--Documentation/devicetree/bindings/arm/tegra.yaml2
-rw-r--r--Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml1
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-rw-r--r--Documentation/devicetree/bindings/arm/tesla.yaml2
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-rw-r--r--Documentation/devicetree/bindings/arm/toshiba.yaml2
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-rw-r--r--Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml189
-rw-r--r--Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml2
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-rw-r--r--Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml2
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-rw-r--r--Documentation/userspace-api/media/videodev2.h.rst.exceptions10
-rw-r--r--Documentation/userspace-api/netlink/index.rst12
-rw-r--r--Documentation/userspace-api/netlink/intro.rst681
-rw-r--r--Documentation/virt/hyperv/clocks.rst73
-rw-r--r--Documentation/virt/hyperv/index.rst12
-rw-r--r--Documentation/virt/hyperv/overview.rst207
-rw-r--r--Documentation/virt/hyperv/vmbus.rst303
-rw-r--r--Documentation/virt/index.rst1
-rw-r--r--Documentation/virt/kvm/api.rst411
-rw-r--r--Documentation/virt/kvm/arm/hyp-abi.rst11
-rw-r--r--Documentation/virt/kvm/s390/index.rst1
-rw-r--r--Documentation/virt/kvm/s390/s390-pv-boot.rst2
-rw-r--r--Documentation/virt/kvm/s390/s390-pv-dump.rst64
-rw-r--r--Documentation/virt/kvm/vcpu-requests.rst28
-rw-r--r--Documentation/virt/kvm/x86/amd-memory-encryption.rst5
-rw-r--r--Documentation/virt/kvm/x86/hypercalls.rst2
-rw-r--r--Documentation/virt/kvm/x86/mmu.rst2
-rw-r--r--Documentation/virt/uml/user_mode_linux_howto_v2.rst2
-rw-r--r--Documentation/vm/.gitignore3
-rw-r--r--Documentation/w1/masters/ds2490.rst2
-rw-r--r--Documentation/w1/w1-generic.rst2
-rw-r--r--Documentation/watchdog/watchdog-parameters.rst12
-rw-r--r--Documentation/x86/entry_64.rst4
-rw-r--r--Documentation/x86/microcode.rst116
-rw-r--r--Documentation/x86/orc-unwinder.rst2
-rw-r--r--Documentation/x86/sgx.rst15
-rw-r--r--Documentation/x86/x86_64/boot-options.rst8
-rw-r--r--Documentation/x86/x86_64/uefi.rst2
2060 files changed, 65421 insertions, 19984 deletions
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index e8797cd09aff..cd14ecb3c9a5 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -260,6 +260,15 @@ Description:
for discards, and don't read this file.
+What: /sys/block/<disk>/queue/dma_alignment
+Date: May 2022
+Contact: linux-block@vger.kernel.org
+Description:
+ Reports the alignment that user space addresses must have to be
+ used for raw block device access with O_DIRECT and other driver
+ specific passthrough mechanisms.
+
+
What: /sys/block/<disk>/queue/fua
Date: May 2018
Contact: linux-block@vger.kernel.org
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
index 0c2b613f2373..8e2c2c405db2 100644
--- a/Documentation/ABI/stable/sysfs-driver-dma-idxd
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -227,6 +227,17 @@ Contact: dmaengine@vger.kernel.org
Description: Indicate the number of retires for an enqcmds submission on a sharedwq.
A max value to set attribute is capped at 64.
+What: /sys/bus/dsa/devices/wq<m>.<n>/op_config
+Date: Sept 14, 2022
+KernelVersion: 6.0.0
+Contact: dmaengine@vger.kernel.org
+Description: Shows the operation capability bits displayed in bitmap format
+ presented by %*pb printk() output format specifier.
+ The attribute can be configured when the WQ is disabled in
+ order to configure the WQ to accept specific bits that
+ correlates to the operations allowed. It's visible only
+ on platforms that support the capability.
+
What: /sys/bus/dsa/devices/engine<m>.<n>/group_id
Date: Oct 25, 2019
KernelVersion: 5.6.0
@@ -255,3 +266,27 @@ Contact: dmaengine@vger.kernel.org
Description: Indicates the number of Read Buffers reserved for the use of
engines in the group. See DSA spec v1.2 9.2.18 GRPCFG Read Buffers
Reserved.
+
+What: /sys/bus/dsa/devices/group<m>.<n>/desc_progress_limit
+Date: Sept 14, 2022
+KernelVersion: 6.0.0
+Contact: dmaengine@vger.kernel.org
+Description: Allows control of the number of work descriptors that can be
+ concurrently processed by an engine in the group as a fraction
+ of the Maximum Work Descriptors in Progress value specified in
+ the ENGCAP register. The acceptable values are 0 (default),
+ 1 (1/2 of max value), 2 (1/4 of the max value), and 3 (1/8 of
+ the max value). It's visible only on platforms that support
+ the capability.
+
+What: /sys/bus/dsa/devices/group<m>.<n>/batch_progress_limit
+Date: Sept 14, 2022
+KernelVersion: 6.0.0
+Contact: dmaengine@vger.kernel.org
+Description: Allows control of the number of batch descriptors that can be
+ concurrently processed by an engine in the group as a fraction
+ of the Maximum Batch Descriptors in Progress value specified in
+ the ENGCAP register. The acceptable values are 0 (default),
+ 1 (1/2 of max value), 2 (1/4 of the max value), and 3 (1/8 of
+ the max value). It's visible only on platforms that support
+ the capability.
diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
index b312242d4f40..af0cbf143c48 100644
--- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io
+++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io
@@ -1,7 +1,7 @@
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
Date: June 2018
KernelVersion: 4.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file shows ASIC health status. The possible values are:
0 - health failed, 2 - health OK, 3 - ASIC in booting state.
@@ -11,7 +11,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version
Date: June 2018
KernelVersion: 4.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show with which CPLD versions have been burned
on carrier and switch boards.
@@ -20,7 +20,7 @@ Description: These files show with which CPLD versions have been burned
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
Date: December 2018
KernelVersion: 5.0
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file shows the system fans direction:
forward direction - relevant bit is set 0;
reversed direction - relevant bit is set 1.
@@ -30,7 +30,7 @@ Description: This file shows the system fans direction:
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
Date: November 2018
KernelVersion: 5.0
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show with which CPLD versions have been burned
on LED or Gearbox board.
@@ -39,7 +39,7 @@ Description: These files show with which CPLD versions have been burned
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
Date: November 2018
KernelVersion: 5.0
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files enable and disable the access to the JTAG domain.
By default access to the JTAG domain is disabled.
@@ -48,7 +48,7 @@ Description: These files enable and disable the access to the JTAG domain.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/select_iio
Date: June 2018
KernelVersion: 4.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file allows iio devices selection.
Attribute select_iio can be written with 0 or with 1. It
@@ -62,7 +62,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/psu1_on
/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_down
Date: June 2018
KernelVersion: 4.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files allow asserting system power cycling, switching
power supply units on and off and system's main power domain
shutdown.
@@ -89,7 +89,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_short_pb
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_reset
Date: June 2018
KernelVersion: 4.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show the system reset cause, as following: power
auxiliary outage or power refresh, ASIC thermal shutdown, halt,
hotswap, watchdog, firmware reset, long press power button,
@@ -106,7 +106,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
Date: November 2018
KernelVersion: 5.0
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show the system reset cause, as following: ComEx
power fail, reset from ComEx, system platform reset, reset
due to voltage monitor devices upgrade failure,
@@ -119,7 +119,7 @@ Description: These files show the system reset cause, as following: ComEx
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
Date: November 2018
KernelVersion: 5.0
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show with which CPLD versions have been burned
on LED board.
@@ -133,7 +133,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
Date: June 2019
KernelVersion: 5.3
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show the system reset cause, as following:
COMEX thermal shutdown; wathchdog power off or reset was derived
by one of the next components: COMEX, switch board or by Small Form
@@ -148,7 +148,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
Date: January 2020
KernelVersion: 5.6
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show system static topology identification
like system's static I2C topology, number and type of FPGA
devices within the system and so on.
@@ -161,7 +161,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
Date: January 2020
KernelVersion: 5.6
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show the system reset causes, as following: reset
due to AC power failure, reset invoked from software by
assertion reset signal through CPLD. reset caused by signal
@@ -173,7 +173,7 @@ Description: These files show the system reset causes, as following: reset
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
Date: January 2020
KernelVersion: 5.6
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file allows to retain ASIC up during PCIe root complex
reset, when attribute is set 1.
@@ -182,7 +182,7 @@ Description: This file allows to retain ASIC up during PCIe root complex
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
Date: January 2020
KernelVersion: 5.6
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file allows to overwrite system VPD hardware write
protection when attribute is set 1.
@@ -191,7 +191,7 @@ Description: This file allows to overwrite system VPD hardware write
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
Date: January 2020
KernelVersion: 5.6
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file exposes the configuration update status of burnable
voltage regulator devices. The status values are as following:
0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
@@ -201,7 +201,7 @@ Description: This file exposes the configuration update status of burnable
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
Date: January 2020
KernelVersion: 5.6
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file exposes the firmware version of burnable voltage
regulator devices.
@@ -217,7 +217,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version_min
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version_min
Date: July 2020
KernelVersion: 5.9
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: These files show with which CPLD part numbers and minor
versions have been burned CPLD devices equipped on a
system.
@@ -471,7 +471,7 @@ Description: These files provide the maximum powered required for line card
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/phy_reset
Date: May 2022
KernelVersion: 5.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file allows to reset PHY 88E1548 when attribute is set 0
due to some abnormal PHY behavior.
Expected behavior:
@@ -483,7 +483,7 @@ Description: This file allows to reset PHY 88E1548 when attribute is set 0
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/mac_reset
Date: May 2022
KernelVersion: 5.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file allows to reset ASIC MT52132 when attribute is set 0
due to some abnormal ASIC behavior.
Expected behavior:
@@ -495,7 +495,7 @@ Description: This file allows to reset ASIC MT52132 when attribute is set 0
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/qsfp_pwr_good
Date: May 2022
KernelVersion: 5.19
-Contact: Vadim Pasternak <vadimpmellanox.com>
+Contact: Vadim Pasternak <vadimp@nvidia.com>
Description: This file shows QSFP ports power status. The value is set to 0
when one of any QSFP ports is plugged. The value is set to 1 when
there are no any QSFP ports are plugged.
@@ -503,3 +503,42 @@ Description: This file shows QSFP ports power status. The value is set to 0
0 - Power good, 1 - Not power good.
The files are read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic2_health
+Date: July 2022
+KernelVersion: 5.20
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file shows 2-nd ASIC health status. The possible values are:
+ 0 - health failed, 2 - health OK, 3 - ASIC in booting state.
+
+ The file is read only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_reset
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic2_reset
+Date: July 2022
+KernelVersion: 5.20
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: These files allow to each of ASICs by writing 1.
+
+ The files are write only.
+
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/comm_chnl_ready
+Date: July 2022
+KernelVersion: 5.20
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: This file is used to indicate remote end (for example BMC) that system
+ host CPU is ready for sending telemetry data to remote end.
+ For indication the file should be written 1.
+
+ The file is write only.
+
+What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config3
+Date: January 2020
+KernelVersion: 5.6
+Contact: Vadim Pasternak <vadimp@nvidia.com>
+Description: The file indicates COME module hardware configuration.
+ The value is pushed by hardware through GPIO pins.
+ The purpose is to expose some minor BOM changes for the same system SKU.
+
+ The file is read only.
diff --git a/Documentation/ABI/stable/sysfs-module b/Documentation/ABI/stable/sysfs-module
index 560b4a3278df..41b1f16e8795 100644
--- a/Documentation/ABI/stable/sysfs-module
+++ b/Documentation/ABI/stable/sysfs-module
@@ -38,7 +38,7 @@ What: /sys/module/<MODULENAME>/srcversion
Date: Jun 2005
Description:
If the module source has MODULE_VERSION, this file will contain
- the checksum of the the source code.
+ the checksum of the source code.
What: /sys/module/<MODULENAME>/version
Date: Jun 2005
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
index c86b63a7bb43..fc0328069267 100644
--- a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
+++ b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
@@ -19,7 +19,7 @@ KernelVersion: 3.13
Description:
The attributes:
- =========== ==============================================
+ ============ ==============================================
file The path to the backing file for the LUN.
Required if LUN is not marked as removable.
ro Flag specifying access to the LUN shall be
@@ -32,4 +32,10 @@ Description:
being a CD-ROM.
nofua Flag specifying that FUA flag
in SCSI WRITE(10,12)
- =========== ==============================================
+ forced_eject This write-only file is useful only when
+ the function is active. It causes the backing
+ file to be forcibly detached from the LUN,
+ regardless of whether the host has allowed it.
+ Any non-zero number of bytes written will
+ result in ejection.
+ ============ ==============================================
diff --git a/Documentation/ABI/testing/debugfs-cros-ec b/Documentation/ABI/testing/debugfs-cros-ec
index 1fe0add99a2a..9a040c6f5e03 100644
--- a/Documentation/ABI/testing/debugfs-cros-ec
+++ b/Documentation/ABI/testing/debugfs-cros-ec
@@ -54,3 +54,25 @@ Description:
this feature.
Output will be in the format: "0x%08x\n".
+
+What: /sys/kernel/debug/<cros-ec-device>/suspend_timeout_ms
+Date: August 2022
+KernelVersion: 6.1
+Description:
+ Some ECs have a feature where they will track transitions of
+ a hardware-controlled sleep line, such as Intel's SLP_S0 line,
+ in order to detect cases where a system failed to go into deep
+ sleep states. The suspend_timeout_ms file controls the amount of
+ time in milliseconds the EC will wait before declaring a sleep
+ timeout event and attempting to wake the system.
+
+ Supply 0 to use the default value coded into EC firmware. Supply
+ 65535 (EC_HOST_SLEEP_TIMEOUT_INFINITE) to disable the EC sleep
+ failure detection mechanism. Values in between 0 and 65535
+ indicate the number of milliseconds the EC should wait after a
+ sleep transition before declaring a timeout. This includes both
+ the duration after a sleep command was received but before the
+ hardware line changed, as well as the duration between when the
+ hardware line changed and the kernel sent an EC resume command.
+
+ Output will be in the format: "%u\n".
diff --git a/Documentation/ABI/testing/debugfs-driver-habanalabs b/Documentation/ABI/testing/debugfs-driver-habanalabs
index 0f8d20fe343f..c915bf17b293 100644
--- a/Documentation/ABI/testing/debugfs-driver-habanalabs
+++ b/Documentation/ABI/testing/debugfs-driver-habanalabs
@@ -101,6 +101,15 @@ Description: Specify the size of the DMA transaction when using DMA to read
When the write is finished, the user can read the "data_dma"
blob
+What: /sys/kernel/debug/habanalabs/hl<n>/dump_razwi_events
+Date: Aug 2022
+KernelVersion: 5.20
+Contact: fkassabri@habana.ai
+Description: Dumps all razwi events to dmesg if exist.
+ After reading the status register of an existing event
+ the routine will clear the status register.
+ Usage: cat dump_razwi_events
+
What: /sys/kernel/debug/habanalabs/hl<n>/dump_security_violations
Date: Jan 2021
KernelVersion: 5.12
@@ -121,14 +130,16 @@ Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets I2C device address for I2C transaction that is generated
- by the device's CPU
+ by the device's CPU, Not available when device is loaded with secured
+ firmware
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_bus
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets I2C bus address for I2C transaction that is generated by
- the device's CPU
+ the device's CPU, Not available when device is loaded with secured
+ firmware
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_data
Date: Jan 2019
@@ -136,39 +147,45 @@ KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Triggers an I2C transaction that is generated by the device's
CPU. Writing to this file generates a write transaction while
- reading from the file generates a read transaction
+ reading from the file generates a read transaction, Not available
+ when device is loaded with secured firmware
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_len
Date: Dec 2021
KernelVersion: 5.17
Contact: obitton@habana.ai
Description: Sets I2C length in bytes for I2C transaction that is generated by
- the device's CPU
+ the device's CPU, Not available when device is loaded with secured
+ firmware
What: /sys/kernel/debug/habanalabs/hl<n>/i2c_reg
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Sets I2C register id for I2C transaction that is generated by
- the device's CPU
+ the device's CPU, Not available when device is loaded with secured
+ firmware
What: /sys/kernel/debug/habanalabs/hl<n>/led0
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
-Description: Sets the state of the first S/W led on the device
+Description: Sets the state of the first S/W led on the device, Not available
+ when device is loaded with secured firmware
What: /sys/kernel/debug/habanalabs/hl<n>/led1
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
-Description: Sets the state of the second S/W led on the device
+Description: Sets the state of the second S/W led on the device, Not available
+ when device is loaded with secured firmware
What: /sys/kernel/debug/habanalabs/hl<n>/led2
Date: Jan 2019
KernelVersion: 5.1
Contact: ogabbay@kernel.org
-Description: Sets the state of the third S/W led on the device
+Description: Sets the state of the third S/W led on the device, Not available
+ when device is loaded with secured firmware
What: /sys/kernel/debug/habanalabs/hl<n>/memory_scrub
Date: May 2022
@@ -182,7 +199,8 @@ Date: May 2022
KernelVersion: 5.19
Contact: dhirschfeld@habana.ai
Description: The value to which the dram will be set to when the user
- scrubs the dram using 'memory_scrub' debugfs file
+ scrubs the dram using 'memory_scrub' debugfs file and
+ the scrubbing value when using module param 'memory_scrub'
What: /sys/kernel/debug/habanalabs/hl<n>/mmu
Date: Jan 2019
@@ -277,7 +295,7 @@ Description: Displays a list with information about the currently user
to DMA addresses
What: /sys/kernel/debug/habanalabs/hl<n>/userptr_lookup
-Date: Aug 2021
+Date: Oct 2021
KernelVersion: 5.15
Contact: ogabbay@kernel.org
Description: Allows to search for specific user pointers (user virtual
diff --git a/Documentation/ABI/testing/procfs-smaps_rollup b/Documentation/ABI/testing/procfs-smaps_rollup
index a4e31c465194..b446a7154a1b 100644
--- a/Documentation/ABI/testing/procfs-smaps_rollup
+++ b/Documentation/ABI/testing/procfs-smaps_rollup
@@ -22,6 +22,7 @@ Description:
MMUPageSize: 4 kB
Rss: 884 kB
Pss: 385 kB
+ Pss_Dirty: 68 kB
Pss_Anon: 301 kB
Pss_File: 80 kB
Pss_Shmem: 4 kB
diff --git a/Documentation/ABI/testing/sysfs-amd-pmc b/Documentation/ABI/testing/sysfs-amd-pmc
new file mode 100644
index 000000000000..c421b72844f1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-amd-pmc
@@ -0,0 +1,13 @@
+What: /sys/bus/platform/drivers/amd_pmc/*/smu_fw_version
+Date: October 2022
+Contact: Mario Limonciello <mario.limonciello@amd.com>
+Description: Reading this file reports the version of the firmware loaded to
+ System Management Unit (SMU) contained in AMD CPUs and
+ APUs.
+
+What: /sys/bus/platform/drivers/amd_pmc/*/smu_program
+Date: October 2022
+Contact: Mario Limonciello <mario.limonciello@amd.com>
+Description: Reading this file reports the program corresponding to the SMU
+ firmware version. The program field is used to disambiguate two
+ APU/CPU models that can share the same firmware binary.
diff --git a/Documentation/ABI/testing/sysfs-amd-pmf b/Documentation/ABI/testing/sysfs-amd-pmf
new file mode 100644
index 000000000000..7fc0e1c2b76b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-amd-pmf
@@ -0,0 +1,13 @@
+What: /sys/devices/platform/*/cnqf_enable
+Date: September 2022
+Contact: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
+Description: Reading this file tells if the AMD Platform Management(PMF)
+ Cool n Quiet Framework(CnQF) feature is enabled or not.
+
+ This feature is not enabled by default and gets only turned on
+ if OEM BIOS passes a "flag" to PMF ACPI function (index 11 or 12)
+ or in case the user writes "on".
+
+ To turn off CnQF user can write "off" to the sysfs node.
+ Note: Systems that support auto mode will not have this sysfs file
+ available.
diff --git a/Documentation/ABI/testing/sysfs-bus-bcma b/Documentation/ABI/testing/sysfs-bus-bcma
index 721b4aea3020..e93d3ddca844 100644
--- a/Documentation/ABI/testing/sysfs-bus-bcma
+++ b/Documentation/ABI/testing/sysfs-bus-bcma
@@ -3,7 +3,7 @@ Date: May 2011
KernelVersion: 3.0
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
- Each BCMA core has it's manufacturer id. See
+ Each BCMA core has its manufacturer id. See
include/linux/bcma/bcma.h for possible values.
What: /sys/bus/bcma/devices/.../id
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
index 8e53a32f8150..08b1964f27d3 100644
--- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
+++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm4x
@@ -516,3 +516,11 @@ Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the number of special conditional P1 right-hand keys
that the trace unit can use (0x194). The value is taken
directly from the HW.
+
+What: /sys/bus/coresight/devices/etm<N>/ts_source
+Date: October 2022
+KernelVersion: 6.1
+Contact: Mathieu Poirier <mathieu.poirier@linaro.org> or Suzuki K Poulose <suzuki.poulose@arm.com>
+Description: (Read) When FEAT_TRF is implemented, value of TRFCR_ELx.TS used for
+ trace session. Otherwise -1 indicates an unknown time source. Check
+ trcidr0.tssize to see if a global timestamp is available.
diff --git a/Documentation/ABI/testing/sysfs-bus-counter b/Documentation/ABI/testing/sysfs-bus-counter
index 06c2b3e27e0b..ff83320b4255 100644
--- a/Documentation/ABI/testing/sysfs-bus-counter
+++ b/Documentation/ABI/testing/sysfs-bus-counter
@@ -4,6 +4,12 @@ Contact: linux-iio@vger.kernel.org
Description:
Count data of Count Y represented as a string.
+What: /sys/bus/counter/devices/counterX/countY/capture
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Historical capture of the Count Y count data.
+
What: /sys/bus/counter/devices/counterX/countY/ceiling
KernelVersion: 5.2
Contact: linux-iio@vger.kernel.org
@@ -203,6 +209,13 @@ Description:
both edges:
Any state transition.
+What: /sys/bus/counter/devices/counterX/countY/num_overflows
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ This attribute indicates the number of overflows of count Y.
+
+What: /sys/bus/counter/devices/counterX/countY/capture_component_id
What: /sys/bus/counter/devices/counterX/countY/ceiling_component_id
What: /sys/bus/counter/devices/counterX/countY/floor_component_id
What: /sys/bus/counter/devices/counterX/countY/count_mode_component_id
@@ -213,11 +226,14 @@ What: /sys/bus/counter/devices/counterX/countY/prescaler_component_id
What: /sys/bus/counter/devices/counterX/countY/preset_component_id
What: /sys/bus/counter/devices/counterX/countY/preset_enable_component_id
What: /sys/bus/counter/devices/counterX/countY/signalZ_action_component_id
+What: /sys/bus/counter/devices/counterX/countY/num_overflows_component_id
What: /sys/bus/counter/devices/counterX/signalY/cable_fault_component_id
What: /sys/bus/counter/devices/counterX/signalY/cable_fault_enable_component_id
What: /sys/bus/counter/devices/counterX/signalY/filter_clock_prescaler_component_id
What: /sys/bus/counter/devices/counterX/signalY/index_polarity_component_id
+What: /sys/bus/counter/devices/counterX/signalY/polarity_component_id
What: /sys/bus/counter/devices/counterX/signalY/synchronous_mode_component_id
+What: /sys/bus/counter/devices/counterX/signalY/frequency_component_id
KernelVersion: 5.16
Contact: linux-iio@vger.kernel.org
Description:
@@ -303,6 +319,19 @@ Description:
Discrete set of available values for the respective Signal Y
configuration are listed in this file.
+What: /sys/bus/counter/devices/counterX/signalY/polarity
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Active level of Signal Y. The following polarity values are
+ available:
+
+ positive:
+ Signal high state considered active level (rising edge).
+
+ negative:
+ Signal low state considered active level (falling edge).
+
What: /sys/bus/counter/devices/counterX/signalY/name
KernelVersion: 5.2
Contact: linux-iio@vger.kernel.org
@@ -345,3 +374,9 @@ Description:
via index_polarity. The index function (as enabled via
preset_enable) is performed synchronously with the
quadrature clock on the active level of the index input.
+
+What: /sys/bus/counter/devices/counterX/signalY/frequency
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Read-only attribute that indicates the signal Y frequency, in Hz.
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index 7c2b846521f3..8494ef27e8d2 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -7,6 +7,7 @@ Description:
all descendant memdevs for unbind. Writing '1' to this attribute
flushes that work.
+
What: /sys/bus/cxl/devices/memX/firmware_version
Date: December, 2020
KernelVersion: v5.12
@@ -16,6 +17,7 @@ Description:
Memory Device Output Payload in the CXL-2.0
specification.
+
What: /sys/bus/cxl/devices/memX/ram/size
Date: December, 2020
KernelVersion: v5.12
@@ -25,6 +27,7 @@ Description:
identically named field in the Identify Memory Device Output
Payload in the CXL-2.0 specification.
+
What: /sys/bus/cxl/devices/memX/pmem/size
Date: December, 2020
KernelVersion: v5.12
@@ -34,6 +37,7 @@ Description:
identically named field in the Identify Memory Device Output
Payload in the CXL-2.0 specification.
+
What: /sys/bus/cxl/devices/memX/serial
Date: January, 2022
KernelVersion: v5.18
@@ -43,6 +47,7 @@ Description:
capability. Mandatory for CXL devices, see CXL 2.0 8.1.12.2
Memory Device PCIe Capabilities and Extended Capabilities.
+
What: /sys/bus/cxl/devices/memX/numa_node
Date: January, 2022
KernelVersion: v5.18
@@ -52,114 +57,334 @@ Description:
host PCI device for this memory device, emit the CPU node
affinity for this device.
+
What: /sys/bus/cxl/devices/*/devtype
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- CXL device objects export the devtype attribute which mirrors
- the same value communicated in the DEVTYPE environment variable
- for uevents for devices on the "cxl" bus.
+ (RO) CXL device objects export the devtype attribute which
+ mirrors the same value communicated in the DEVTYPE environment
+ variable for uevents for devices on the "cxl" bus.
+
What: /sys/bus/cxl/devices/*/modalias
Date: December, 2021
KernelVersion: v5.18
Contact: linux-cxl@vger.kernel.org
Description:
- CXL device objects export the modalias attribute which mirrors
- the same value communicated in the MODALIAS environment variable
- for uevents for devices on the "cxl" bus.
+ (RO) CXL device objects export the modalias attribute which
+ mirrors the same value communicated in the MODALIAS environment
+ variable for uevents for devices on the "cxl" bus.
+
What: /sys/bus/cxl/devices/portX/uport
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- CXL port objects are enumerated from either a platform firmware
- device (ACPI0017 and ACPI0016) or PCIe switch upstream port with
- CXL component registers. The 'uport' symlink connects the CXL
- portX object to the device that published the CXL port
+ (RO) CXL port objects are enumerated from either a platform
+ firmware device (ACPI0017 and ACPI0016) or PCIe switch upstream
+ port with CXL component registers. The 'uport' symlink connects
+ the CXL portX object to the device that published the CXL port
capability.
+
What: /sys/bus/cxl/devices/portX/dportY
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- CXL port objects are enumerated from either a platform firmware
- device (ACPI0017 and ACPI0016) or PCIe switch upstream port with
- CXL component registers. The 'dportY' symlink identifies one or
- more downstream ports that the upstream port may target in its
- decode of CXL memory resources. The 'Y' integer reflects the
- hardware port unique-id used in the hardware decoder target
- list.
+ (RO) CXL port objects are enumerated from either a platform
+ firmware device (ACPI0017 and ACPI0016) or PCIe switch upstream
+ port with CXL component registers. The 'dportY' symlink
+ identifies one or more downstream ports that the upstream port
+ may target in its decode of CXL memory resources. The 'Y'
+ integer reflects the hardware port unique-id used in the
+ hardware decoder target list.
+
What: /sys/bus/cxl/devices/decoderX.Y
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- CXL decoder objects are enumerated from either a platform
+ (RO) CXL decoder objects are enumerated from either a platform
firmware description, or a CXL HDM decoder register set in a
PCIe device (see CXL 2.0 section 8.2.5.12 CXL HDM Decoder
Capability Structure). The 'X' in decoderX.Y represents the
cxl_port container of this decoder, and 'Y' represents the
instance id of a given decoder resource.
+
What: /sys/bus/cxl/devices/decoderX.Y/{start,size}
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- The 'start' and 'size' attributes together convey the physical
- address base and number of bytes mapped in the decoder's decode
- window. For decoders of devtype "cxl_decoder_root" the address
- range is fixed. For decoders of devtype "cxl_decoder_switch" the
- address is bounded by the decode range of the cxl_port ancestor
- of the decoder's cxl_port, and dynamically updates based on the
- active memory regions in that address space.
+ (RO) The 'start' and 'size' attributes together convey the
+ physical address base and number of bytes mapped in the
+ decoder's decode window. For decoders of devtype
+ "cxl_decoder_root" the address range is fixed. For decoders of
+ devtype "cxl_decoder_switch" the address is bounded by the
+ decode range of the cxl_port ancestor of the decoder's cxl_port,
+ and dynamically updates based on the active memory regions in
+ that address space.
+
What: /sys/bus/cxl/devices/decoderX.Y/locked
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- CXL HDM decoders have the capability to lock the configuration
- until the next device reset. For decoders of devtype
- "cxl_decoder_root" there is no standard facility to unlock them.
- For decoders of devtype "cxl_decoder_switch" a secondary bus
- reset, of the PCIe bridge that provides the bus for this
- decoders uport, unlocks / resets the decoder.
+ (RO) CXL HDM decoders have the capability to lock the
+ configuration until the next device reset. For decoders of
+ devtype "cxl_decoder_root" there is no standard facility to
+ unlock them. For decoders of devtype "cxl_decoder_switch" a
+ secondary bus reset, of the PCIe bridge that provides the bus
+ for this decoders uport, unlocks / resets the decoder.
+
What: /sys/bus/cxl/devices/decoderX.Y/target_list
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- Display a comma separated list of the current decoder target
- configuration. The list is ordered by the current configured
- interleave order of the decoder's dport instances. Each entry in
- the list is a dport id.
+ (RO) Display a comma separated list of the current decoder
+ target configuration. The list is ordered by the current
+ configured interleave order of the decoder's dport instances.
+ Each entry in the list is a dport id.
+
What: /sys/bus/cxl/devices/decoderX.Y/cap_{pmem,ram,type2,type3}
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- When a CXL decoder is of devtype "cxl_decoder_root", it
+ (RO) When a CXL decoder is of devtype "cxl_decoder_root", it
represents a fixed memory window identified by platform
firmware. A fixed window may only support a subset of memory
types. The 'cap_*' attributes indicate whether persistent
memory, volatile memory, accelerator memory, and / or expander
memory may be mapped behind this decoder's memory window.
+
What: /sys/bus/cxl/devices/decoderX.Y/target_type
Date: June, 2021
KernelVersion: v5.14
Contact: linux-cxl@vger.kernel.org
Description:
- When a CXL decoder is of devtype "cxl_decoder_switch", it can
- optionally decode either accelerator memory (type-2) or expander
- memory (type-3). The 'target_type' attribute indicates the
- current setting which may dynamically change based on what
+ (RO) When a CXL decoder is of devtype "cxl_decoder_switch", it
+ can optionally decode either accelerator memory (type-2) or
+ expander memory (type-3). The 'target_type' attribute indicates
+ the current setting which may dynamically change based on what
memory regions are activated in this decode hierarchy.
+
+
+What: /sys/bus/cxl/devices/endpointX/CDAT
+Date: July, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) If this sysfs entry is not present no DOE mailbox was
+ found to support CDAT data. If it is present and the length of
+ the data is 0 reading the CDAT data failed. Otherwise the CDAT
+ data is reported.
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/mode
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) When a CXL decoder is of devtype "cxl_decoder_endpoint" it
+ translates from a host physical address range, to a device local
+ address range. Device-local address ranges are further split
+ into a 'ram' (volatile memory) range and 'pmem' (persistent
+ memory) range. The 'mode' attribute emits one of 'ram', 'pmem',
+ 'mixed', or 'none'. The 'mixed' indication is for error cases
+ when a decoder straddles the volatile/persistent partition
+ boundary, and 'none' indicates the decoder is not actively
+ decoding, or no DPA allocation policy has been set.
+
+ 'mode' can be written, when the decoder is in the 'disabled'
+ state, with either 'ram' or 'pmem' to set the boundaries for the
+ next allocation.
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/dpa_resource
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) When a CXL decoder is of devtype "cxl_decoder_endpoint",
+ and its 'dpa_size' attribute is non-zero, this attribute
+ indicates the device physical address (DPA) base address of the
+ allocation.
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/dpa_size
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) When a CXL decoder is of devtype "cxl_decoder_endpoint" it
+ translates from a host physical address range, to a device local
+ address range. The range, base address plus length in bytes, of
+ DPA allocated to this decoder is conveyed in these 2 attributes.
+ Allocations can be mutated as long as the decoder is in the
+ disabled state. A write to 'dpa_size' releases the previous DPA
+ allocation and then attempts to allocate from the free capacity
+ in the device partition referred to by 'decoderX.Y/mode'.
+ Allocate and free requests can only be performed on the highest
+ instance number disabled decoder with non-zero size. I.e.
+ allocations are enforced to occur in increasing 'decoderX.Y/id'
+ order and frees are enforced to occur in decreasing
+ 'decoderX.Y/id' order.
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/interleave_ways
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The number of targets across which this decoder's host
+ physical address (HPA) memory range is interleaved. The device
+ maps every Nth block of HPA (of size ==
+ 'interleave_granularity') to consecutive DPA addresses. The
+ decoder's position in the interleave is determined by the
+ device's (endpoint or switch) switch ancestry. For root
+ decoders their interleave is specified by platform firmware and
+ they only specify a downstream target order for host bridges.
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/interleave_granularity
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) The number of consecutive bytes of host physical address
+ space this decoder claims at address N before the decode rotates
+ to the next target in the interleave at address N +
+ interleave_granularity (assuming N is aligned to
+ interleave_granularity).
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/create_pmem_region
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Write a string in the form 'regionZ' to start the process
+ of defining a new persistent memory region (interleave-set)
+ within the decode range bounded by root decoder 'decoderX.Y'.
+ The value written must match the current value returned from
+ reading this attribute. An atomic compare exchange operation is
+ done on write to assign the requested id to a region and
+ allocate the region-id for the next creation attempt. EBUSY is
+ returned if the region name written does not match the current
+ cached value.
+
+
+What: /sys/bus/cxl/devices/decoderX.Y/delete_region
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (WO) Write a string in the form 'regionZ' to delete that region,
+ provided it is currently idle / not bound to a driver.
+
+
+What: /sys/bus/cxl/devices/regionZ/uuid
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Write a unique identifier for the region. This field must
+ be set for persistent regions and it must not conflict with the
+ UUID of another region.
+
+
+What: /sys/bus/cxl/devices/regionZ/interleave_granularity
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Set the number of consecutive bytes each device in the
+ interleave set will claim. The possible interleave granularity
+ values are determined by the CXL spec and the participating
+ devices.
+
+
+What: /sys/bus/cxl/devices/regionZ/interleave_ways
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Configures the number of devices participating in the
+ region is set by writing this value. Each device will provide
+ 1/interleave_ways of storage for the region.
+
+
+What: /sys/bus/cxl/devices/regionZ/size
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) System physical address space to be consumed by the region.
+ When written trigger the driver to allocate space out of the
+ parent root decoder's address space. When read the size of the
+ address space is reported and should match the span of the
+ region's resource attribute. Size shall be set after the
+ interleave configuration parameters. Once set it cannot be
+ changed, only freed by writing 0. The kernel makes no guarantees
+ that data is maintained over an address space freeing event, and
+ there is no guarantee that a free followed by an allocate
+ results in the same address being allocated.
+
+
+What: /sys/bus/cxl/devices/regionZ/resource
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) A region is a contiguous partition of a CXL root decoder
+ address space. Region capacity is allocated by writing to the
+ size attribute, the resulting physical address space determined
+ by the driver is reflected here. It is therefore not useful to
+ read this before writing a value to the size attribute.
+
+
+What: /sys/bus/cxl/devices/regionZ/target[0..N]
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Write an endpoint decoder object name to 'targetX' where X
+ is the intended position of the endpoint device in the region
+ interleave and N is the 'interleave_ways' setting for the
+ region. ENXIO is returned if the write results in an impossible
+ to map decode scenario, like the endpoint is unreachable at that
+ position relative to the root decoder interleave. EBUSY is
+ returned if the position in the region is already occupied, or
+ if the region is not in a state to accept interleave
+ configuration changes. EINVAL is returned if the object name is
+ not an endpoint decoder. Once all positions have been
+ successfully written a final validation for decode conflicts is
+ performed before activating the region.
+
+
+What: /sys/bus/cxl/devices/regionZ/commit
+Date: May, 2022
+KernelVersion: v5.20
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RW) Write a boolean 'true' string value to this attribute to
+ trigger the region to transition from the software programmed
+ state to the actively decoding in hardware state. The commit
+ operation in addition to validating that the region is in proper
+ configured state, validates that the decoders are being
+ committed in spec mandated order (last committed decoder id +
+ 1), and checks that the hardware accepts the commit request.
+ Reading this value indicates whether the region is committed or
+ not.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps b/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps
new file mode 100644
index 000000000000..8757dcf41c08
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-caps
@@ -0,0 +1,18 @@
+What: /sys/bus/event_source/devices/<dev>/caps
+Date: May 2022
+KernelVersion: 5.19
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+Description:
+ Attribute group to describe the capabilities exposed
+ for a particular pmu. Each attribute of this group can
+ expose information specific to a PMU, say pmu_name, so that
+ userspace can understand some of the feature which the
+ platform specific PMU supports.
+
+ One of the example available capability in supported platform
+ like Intel is pmu_name, which exposes underlying CPU name known
+ to the PMU driver.
+
+ Example output in powerpc:
+ grep . /sys/bus/event_source/devices/cpu/caps/*
+ /sys/bus/event_source/devices/cpu/caps/pmu_name:POWER9
diff --git a/Documentation/ABI/testing/sysfs-bus-fcoe b/Documentation/ABI/testing/sysfs-bus-fcoe
index 8fe787cc4ab7..5a4f2091ac37 100644
--- a/Documentation/ABI/testing/sysfs-bus-fcoe
+++ b/Documentation/ABI/testing/sysfs-bus-fcoe
@@ -31,7 +31,7 @@ Description: 'FCoE Controller' instances on the fcoe bus.
1) Write interface name to ctlr_create 2) Configure the FCoE
Controller (ctlr_X) 3) Enable the FCoE Controller to begin
discovery and login. The FCoE Controller is destroyed by
- writing it's name, i.e. ctlr_X to the ctlr_delete file.
+ writing its name, i.e. ctlr_X to the ctlr_delete file.
Attributes:
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index d4ccc68fdcf0..6ba34c0d9789 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -79,6 +79,11 @@ Description:
* "accel-base"
* "accel-display"
+ For devices where an accelerometer is housed in the swivel camera subassembly
+ (for AR application), the following standardized label is used:
+
+ * "accel-camera"
+
What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock
KernelVersion: 4.5
Contact: linux-iio@vger.kernel.org
@@ -102,6 +107,9 @@ Description:
relevant directories. If it affects all of the above
then it is to be found in the base device directory.
+ The stm32-timer-trigger has the additional characteristic that
+ a sampling_frequency of 0 is defined to stop sampling.
+
What: /sys/bus/iio/devices/iio:deviceX/sampling_frequency_available
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_sampling_frequency_available
What: /sys/bus/iio/devices/iio:deviceX/in_proximity_sampling_frequency_available
@@ -188,7 +196,7 @@ Description:
Raw capacitance measurement from channel Y. Units after
application of scale and offset are nanofarads.
-What: /sys/.../iio:deviceX/in_capacitanceY-in_capacitanceZ_raw
+What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_raw
KernelVersion: 3.2
Contact: linux-iio@vger.kernel.org
Description:
@@ -199,6 +207,25 @@ Description:
is required is a consistent labeling. Units after application
of scale and offset are nanofarads.
+What: /sys/.../iio:deviceX/in_capacitanceY-capacitanceZ_zeropoint
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ For differential channels, this an offset that is applied
+ equally to both inputs. As the reading is of the difference
+ between the two inputs, this should not be applied to the _raw
+ reading by userspace (unlike _offset) and unlike calibbias
+ it does not affect the differential value measured because
+ the effect of _zeropoint cancels out across the two inputs
+ that make up the differential pair. It's purpose is to bring
+ the individual signals, before the differential is measured,
+ within the measurement range of the device. The naming is
+ chosen because if the separate inputs that make the
+ differential pair are drawn on a graph in their
+ _raw units, this is the value that the zero point on the
+ measurement axis represents. It is expressed with the
+ same scaling as _raw.
+
What: /sys/bus/iio/devices/iio:deviceX/in_temp_raw
What: /sys/bus/iio/devices/iio:deviceX/in_tempX_raw
What: /sys/bus/iio/devices/iio:deviceX/in_temp_x_raw
@@ -233,6 +260,15 @@ Description:
Has all of the equivalent parameters as per voltageY. Units
after application of scale and offset are m/s^2.
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_x_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_y_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_linear_z_raw
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ As per in_accel_X_raw attributes, but minus the
+ acceleration due to gravity.
+
What: /sys/bus/iio/devices/iio:deviceX/in_gravity_x_raw
What: /sys/bus/iio/devices/iio:deviceX/in_gravity_y_raw
What: /sys/bus/iio/devices/iio:deviceX/in_gravity_z_raw
@@ -2030,3 +2066,99 @@ Description:
Available range for the forced calibration value, expressed as:
- a range specified as "[min step max]"
+
+What: /sys/bus/iio/devices/iio:deviceX/in_voltageX_sampling_frequency
+What: /sys/bus/iio/devices/iio:deviceX/in_powerY_sampling_frequency
+What: /sys/bus/iio/devices/iio:deviceX/in_currentZ_sampling_frequency
+KernelVersion: 5.20
+Contact: linux-iio@vger.kernel.org
+Description:
+ Some devices have separate controls of sampling frequency for
+ individual channels. If multiple channels are enabled in a scan,
+ then the sampling_frequency of the scan may be computed from the
+ per channel sampling frequencies.
+
+What: /sys/.../events/in_accel_gesture_singletap_en
+What: /sys/.../events/in_accel_gesture_doubletap_en
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Device generates an event on a single or double tap.
+
+What: /sys/.../events/in_accel_gesture_singletap_value
+What: /sys/.../events/in_accel_gesture_doubletap_value
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Specifies the threshold value that the device is comparing
+ against to generate the tap gesture event. The lower
+ threshold value increases the sensitivity of tap detection.
+ Units and the exact meaning of value are device-specific.
+
+What: /sys/.../events/in_accel_gesture_tap_value_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Lists all available threshold values which can be used to
+ modify the sensitivity of the tap detection.
+
+What: /sys/.../events/in_accel_gesture_singletap_reset_timeout
+What: /sys/.../events/in_accel_gesture_doubletap_reset_timeout
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Specifies the timeout value in seconds for the tap detector
+ to not to look for another tap event after the event as
+ occurred. Basically the minimum quiet time between the two
+ single-tap's or two double-tap's.
+
+What: /sys/.../events/in_accel_gesture_tap_reset_timeout_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Lists all available tap reset timeout values. Units in seconds.
+
+What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Specifies the minimum quiet time in seconds between the two
+ taps of a double tap.
+
+What: /sys/.../events/in_accel_gesture_doubletap_tap2_min_delay_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Lists all available delay values between two taps in the double
+ tap. Units in seconds.
+
+What: /sys/.../events/in_accel_gesture_tap_maxtomin_time
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Specifies the maximum time difference allowed between upper
+ and lower peak of tap to consider it as the valid tap event.
+ Units in seconds.
+
+What: /sys/.../events/in_accel_gesture_tap_maxtomin_time_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Lists all available time values between upper peak to lower
+ peak. Units in seconds.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_rot_yaw_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_rot_pitch_raw
+What: /sys/bus/iio/devices/iio:deviceX/in_rot_roll_raw
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Raw (unscaled) euler angles readings. Units after
+ application of scale are deg.
+
+What: /sys/bus/iio/devices/iio:deviceX/serialnumber
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ An example format is 16-bytes, 2-digits-per-byte, HEX-string
+ representing the sensor unique ID number.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-bno055 b/Documentation/ABI/testing/sysfs-bus-iio-bno055
new file mode 100644
index 000000000000..f32b1644e986
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-bno055
@@ -0,0 +1,81 @@
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_raw_range
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Raw (unscaled) range for acceleration readings. Unit after
+ application of scale is m/s^2. Note that this doesn't affects
+ the scale (which should be used when changing the maximum and
+ minimum readable value affects also the reading scaling factor).
+
+What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_raw_range
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Range for angular velocity readings in radians per second. Note
+ that this does not affects the scale (which should be used when
+ changing the maximum and minimum readable value affects also the
+ reading scaling factor).
+
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_raw_range_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of allowed values for in_accel_raw_range attribute
+
+What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_raw_range_available
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ List of allowed values for in_anglvel_raw_range attribute
+
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_calibration_fast_enable
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Can be 1 or 0. Enables/disables the "Fast Magnetometer
+ Calibration" HW function.
+
+What: /sys/bus/iio/devices/iio:deviceX/fusion_enable
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Can be 1 or 0. Enables/disables the "sensor fusion" (a.k.a.
+ NDOF) HW function.
+
+What: /sys/bus/iio/devices/iio:deviceX/calibration_data
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reports the binary calibration data blob for the IMU sensors.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_accel_calibration_auto_status
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reports the autocalibration status for the accelerometer sensor.
+ Can be 0 (calibration non even enabled) or 1 to 5 where the greater
+ the number, the better the calibration status.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_gyro_calibration_auto_status
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reports the autocalibration status for the gyroscope sensor.
+ Can be 0 (calibration non even enabled) or 1 to 5 where the greater
+ the number, the better the calibration status.
+
+What: /sys/bus/iio/devices/iio:deviceX/in_magn_calibration_auto_status
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reports the autocalibration status for the magnetometer sensor.
+ Can be 0 (calibration non even enabled) or 1 to 5 where the greater
+ the number, the better the calibration status.
+
+What: /sys/bus/iio/devices/iio:deviceX/sys_calibration_auto_status
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Reports the status for the IMU overall autocalibration.
+ Can be 0 (calibration non even enabled) or 1 to 5 where the greater
+ the number, the better the calibration status.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-cdc-ad7746 b/Documentation/ABI/testing/sysfs-bus-iio-cdc-ad7746
new file mode 100644
index 000000000000..02ca8941dce1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-cdc-ad7746
@@ -0,0 +1,11 @@
+What: /sys/.../iio:deviceX/in_capacitableY_calibbias_calibration
+What: /sys/.../iio:deviceX/in_capacitableY_calibscale_calibration
+KernelVersion: 6.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Write 1 to trigger a calibration of the calibbias or
+ calibscale. For calibscale, a full scale capacitance should
+ be connected to the capacitance input and a
+ calibscale_calibration then started. For calibbias see
+ the device datasheet section on "capacitive system offset
+ calibration".
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-proximity b/Documentation/ABI/testing/sysfs-bus-iio-proximity
index 3aac6dab8775..9b9d1cc9b703 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-proximity
+++ b/Documentation/ABI/testing/sysfs-bus-iio-proximity
@@ -18,7 +18,7 @@ Description:
on the signal from which time of flight measurements are
taken.
The appropriate values to take is dependent on both the
- sensor and it's operating environment:
+ sensor and its operating environment:
* as3935 (0-31 range)
18 = indoors (default)
14 = outdoors
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-sx9324 b/Documentation/ABI/testing/sysfs-bus-iio-sx9324
index 632e3321f5a3..a8342770e7cb 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-sx9324
+++ b/Documentation/ABI/testing/sysfs-bus-iio-sx9324
@@ -5,6 +5,7 @@ Contact: Gwendal Grignou <gwendal@chromium.org>
Description:
SX9324 has 3 inputs, CS0, CS1 and CS2. Hardware layout
defines if the input is
+
+ not connected (HZ),
+ grounded (GD),
+ connected to an antenna where it can act as a base
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856
deleted file mode 100644
index e5ef6d8e5da1..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31856
+++ /dev/null
@@ -1,31 +0,0 @@
-What: /sys/bus/iio/devices/iio:deviceX/fault_oc
-KernelVersion: 5.1
-Contact: linux-iio@vger.kernel.org
-Description:
- Open-circuit fault. The detection of open-circuit faults,
- such as those caused by broken thermocouple wires.
- Reading returns either '1' or '0'.
-
- === =======================================================
- '1' An open circuit such as broken thermocouple wires
- has been detected.
- '0' No open circuit or broken thermocouple wires are detected
- === =======================================================
-
-What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv
-KernelVersion: 5.1
-Contact: linux-iio@vger.kernel.org
-Description:
- Overvoltage or Undervoltage Input Fault. The internal circuitry
- is protected from excessive voltages applied to the thermocouple
- cables by integrated MOSFETs at the T+ and T- inputs, and the
- BIAS output. These MOSFETs turn off when the input voltage is
- negative or greater than VDD.
-
- Reading returns either '1' or '0'.
-
- === =======================================================
- '1' The input voltage is negative or greater than VDD.
- '0' The input voltage is positive and less than VDD (normal
- state).
- === =======================================================
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865 b/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865
deleted file mode 100644
index 4b072da92218..000000000000
--- a/Documentation/ABI/testing/sysfs-bus-iio-temperature-max31865
+++ /dev/null
@@ -1,20 +0,0 @@
-What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv
-KernelVersion: 5.11
-Contact: linux-iio@vger.kernel.org
-Description:
- Overvoltage or Undervoltage Input fault. The internal circuitry
- is protected from excessive voltages applied to the thermocouple
- cables at FORCE+, FORCE2, RTDIN+ & RTDIN-. This circuitry turn
- off when the input voltage is negative or greater than VDD.
-
- Reading returns '1' if input voltage is negative or greater
- than VDD, otherwise '0'.
-
-What: /sys/bus/iio/devices/iio:deviceX/in_filter_notch_center_frequency
-KernelVersion: 5.11
-Contact: linux-iio@vger.kernel.org
-Description:
- Notch frequency in Hz for a noise rejection filter. Used i.e for
- line noise rejection.
-
- Valid notch filter values are 50 Hz and 60 Hz.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-thermocouple b/Documentation/ABI/testing/sysfs-bus-iio-thermocouple
new file mode 100644
index 000000000000..01259df297ca
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-iio-thermocouple
@@ -0,0 +1,18 @@
+What: /sys/bus/iio/devices/iio:deviceX/fault_ovuv
+KernelVersion: 5.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Overvoltage or Undervoltage Input Fault. The internal circuitry
+ is protected from excessive voltages applied to the thermocouple
+ cables. The device can also detect if such a condition occurs.
+
+ Reading returns '1' if input voltage is negative or greater
+ than VDD, otherwise '0'.
+
+What: /sys/bus/iio/devices/iio:deviceX/fault_oc
+KernelVersion: 5.1
+Contact: linux-iio@vger.kernel.org
+Description:
+ Open-circuit fault. The detection of open-circuit faults,
+ such as those caused by broken thermocouple wires.
+ Reading returns '1' if fault, '0' otherwise.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32 b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
index c4a4497c249a..05074c4a65e2 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
+++ b/Documentation/ABI/testing/sysfs-bus-iio-timer-stm32
@@ -90,14 +90,6 @@ Description:
Reading returns the current master modes.
Writing set the master mode
-What: /sys/bus/iio/devices/triggerX/sampling_frequency
-KernelVersion: 4.11
-Contact: benjamin.gaignard@st.com
-Description:
- Reading returns the current sampling frequency.
- Writing an value different of 0 set and start sampling.
- Writing 0 stop sampling.
-
What: /sys/bus/iio/devices/iio:deviceX/in_count0_preset
KernelVersion: 4.12
Contact: benjamin.gaignard@st.com
diff --git a/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
new file mode 100644
index 000000000000..42deb0552065
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-platform-onboard-usb-hub
@@ -0,0 +1,8 @@
+What: /sys/bus/platform/devices/<dev>/always_powered_in_suspend
+Date: June 2022
+KernelVersion: 5.20
+Contact: Matthias Kaehlcke <matthias@kaehlcke.net>
+ linux-usb@vger.kernel.org
+Description:
+ (RW) Controls whether the USB hub remains always powered
+ during system suspend or not. \ No newline at end of file
diff --git a/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw b/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw
new file mode 100644
index 000000000000..74cd9d754e60
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw
@@ -0,0 +1,57 @@
+What: /sys/bus/surface_aggregator/devices/01:0e:01:00:01/state
+Date: July 2022
+KernelVersion: 5.20
+Contact: Maximilian Luz <luzmaximilian@gmail.com>
+Description:
+ This attribute returns a string with the current type-cover
+ or device posture, as indicated by the embedded controller.
+ Currently returned posture states are:
+
+ - "disconnected": The type-cover has been disconnected.
+
+ - "closed": The type-cover has been folded closed and lies on
+ top of the display.
+
+ - "laptop": The type-cover is open and in laptop-mode, i.e.,
+ ready for normal use.
+
+ - "folded-canvas": The type-cover has been folded back
+ part-ways, but does not lie flush with the back side of the
+ device. In general, this means that the kick-stand is used
+ and extended atop of the cover.
+
+ - "folded-back": The type cover has been fully folded back and
+ lies flush with the back side of the device.
+
+ - "<unknown>": The current state is unknown to the driver, for
+ example due to newer as-of-yet unsupported hardware.
+
+ New states may be introduced with new hardware. Users therefore
+ must not rely on this list of states being exhaustive and
+ gracefully handle unknown states.
+
+What: /sys/bus/surface_aggregator/devices/01:26:01:00:01/state
+Date: July 2022
+KernelVersion: 5.20
+Contact: Maximilian Luz <luzmaximilian@gmail.com>
+Description:
+ This attribute returns a string with the current device posture, as indicated by the embedded controller. Currently
+ returned posture states are:
+
+ - "closed": The lid of the device is closed.
+
+ - "laptop": The lid of the device is opened and the device
+ operates as a normal laptop.
+
+ - "slate": The screen covers the keyboard or has been flipped
+ back and the device operates mainly based on touch input.
+
+ - "tablet": The device operates as tablet and exclusively
+ relies on touch input (or external peripherals).
+
+ - "<unknown>": The current state is unknown to the driver, for
+ example due to newer as-of-yet unsupported hardware.
+
+ New states may be introduced with new hardware. Users therefore
+ must not rely on this list of states being exhaustive and
+ gracefully handle unknown states.
diff --git a/Documentation/ABI/testing/sysfs-bus-thunderbolt b/Documentation/ABI/testing/sysfs-bus-thunderbolt
index f7570c240ce8..76ab3e1fe374 100644
--- a/Documentation/ABI/testing/sysfs-bus-thunderbolt
+++ b/Documentation/ABI/testing/sysfs-bus-thunderbolt
@@ -153,7 +153,7 @@ Date: Jan 2020
KernelVersion: 5.5
Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute reports number of RX lanes the device is
- using simultaneusly through its upstream port.
+ using simultaneously through its upstream port.
What: /sys/bus/thunderbolt/devices/.../tx_speed
Date: Jan 2020
@@ -167,7 +167,7 @@ Date: Jan 2020
KernelVersion: 5.5
Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This attribute reports number of TX lanes the device is
- using simultaneusly through its upstream port.
+ using simultaneously through its upstream port.
What: /sys/bus/thunderbolt/devices/.../vendor
Date: Sep 2017
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index 7efe31ed3a25..568103d3376e 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -253,6 +253,17 @@ Description:
only if the system firmware is capable of describing the
connection between a port and its connector.
+What: /sys/bus/usb/devices/.../<hub_interface>/port<X>/disable
+Date: June 2022
+Contact: Michael Grzeschik <m.grzeschik@pengutronix.de>
+Description:
+ This file controls the state of a USB port, including
+ Vbus power output (but only on hubs that support
+ power switching -- most hubs don't support it). If
+ a port is disabled, the port is unusable: Devices
+ attached to the port will not be detected, initialized,
+ or enumerated.
+
What: /sys/bus/usb/devices/.../power/usb2_lpm_l1_timeout
Date: May 2013
Contact: Mathias Nyman <mathias.nyman@linux.intel.com>
diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon
index 653d4c75eddb..7271781a23b2 100644
--- a/Documentation/ABI/testing/sysfs-class-hwmon
+++ b/Documentation/ABI/testing/sysfs-class-hwmon
@@ -938,3 +938,12 @@ Description:
- 1: enable
RW
+
+What: /sys/class/hwmon/hwmonX/device/pec
+Description:
+ PEC support on I2C devices
+
+ - 0, off, n: disable
+ - 1, on, y: enable
+
+ RW
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index a9ce63cfbe87..e434fc523291 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -364,7 +364,10 @@ Date: April 2019
Contact: linux-pm@vger.kernel.org
Description:
Represents a battery percentage level, above which charging will
- stop.
+ stop. Not all hardware is capable of setting this to an arbitrary
+ percentage. Drivers will round written values to the nearest
+ supported value. Reading back the value will show the actual
+ threshold set by the driver.
Access: Read, Write
diff --git a/Documentation/ABI/testing/sysfs-class-pwm b/Documentation/ABI/testing/sysfs-class-pwm
index 3d65285bcd5f..0638c94d01ef 100644
--- a/Documentation/ABI/testing/sysfs-class-pwm
+++ b/Documentation/ABI/testing/sysfs-class-pwm
@@ -81,7 +81,7 @@ Description:
What: /sys/class/pwm/pwmchip<N>/pwmX/capture
Date: June 2016
KernelVersion: 4.8
-Contact: Lee Jones <lee.jones@linaro.org>
+Contact: Lee Jones <lee@kernel.org>
Description:
Capture information about a PWM signal. The output format is a
pair unsigned integers (period and duty cycle), separated by a
diff --git a/Documentation/ABI/testing/sysfs-class-rtrs-client b/Documentation/ABI/testing/sysfs-class-rtrs-client
index 49a4157c7bf1..fecc59d1b96f 100644
--- a/Documentation/ABI/testing/sysfs-class-rtrs-client
+++ b/Documentation/ABI/testing/sysfs-class-rtrs-client
@@ -78,7 +78,7 @@ What: /sys/class/rtrs-client/<session-name>/paths/<src@dst>/hca_name
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
-Description: RO, Contains the the name of HCA the connection established on.
+Description: RO, Contains the name of HCA the connection established on.
What: /sys/class/rtrs-client/<session-name>/paths/<src@dst>/hca_port
Date: Feb 2020
diff --git a/Documentation/ABI/testing/sysfs-class-rtrs-server b/Documentation/ABI/testing/sysfs-class-rtrs-server
index 3b6d5b067df0..b08601d80409 100644
--- a/Documentation/ABI/testing/sysfs-class-rtrs-server
+++ b/Documentation/ABI/testing/sysfs-class-rtrs-server
@@ -24,7 +24,7 @@ What: /sys/class/rtrs-server/<session-name>/paths/<src@dst>/hca_name
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
-Description: RO, Contains the the name of HCA the connection established on.
+Description: RO, Contains the name of HCA the connection established on.
What: /sys/class/rtrs-server/<session-name>/paths/<src@dst>/hca_port
Date: Feb 2020
diff --git a/Documentation/ABI/testing/sysfs-class-typec b/Documentation/ABI/testing/sysfs-class-typec
index 75088ecad202..281b995beb05 100644
--- a/Documentation/ABI/testing/sysfs-class-typec
+++ b/Documentation/ABI/testing/sysfs-class-typec
@@ -141,6 +141,14 @@ Description:
- "reverse": CC2 orientation
- "unknown": Orientation cannot be determined.
+What: /sys/class/typec/<port>/select_usb_power_delivery
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Lists the USB Power Delivery Capabilities that the port can
+ advertise to the partner. The currently used capabilities are in
+ brackets. Selection happens by writing to the file.
+
USB Type-C partner devices (eg. /sys/class/typec/port0-partner/)
What: /sys/class/typec/<port>-partner/accessory_mode
diff --git a/Documentation/ABI/testing/sysfs-class-usb_power_delivery b/Documentation/ABI/testing/sysfs-class-usb_power_delivery
new file mode 100644
index 000000000000..ce2b1b563cb3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-usb_power_delivery
@@ -0,0 +1,240 @@
+What: /sys/class/usb_power_delivery
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Directory for USB Power Delivery devices.
+
+What: /sys/class/usb_power_delivery/.../revision
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ File showing the USB Power Delivery Specification Revision used
+ in communication.
+
+What: /sys/class/usb_power_delivery/.../version
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This is an optional attribute file showing the version of the
+ specific revision of the USB Power Delivery Specification. In
+ most cases the specification version is not known and the file
+ is not available.
+
+What: /sys/class/usb_power_delivery/.../source-capabilities
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The source capabilities message "Source_Capabilities" contains a
+ set of Power Data Objects (PDO), each representing a type of
+ power supply. The order of the PDO objects is defined in the USB
+ Power Delivery Specification. Each PDO - power supply - will
+ have its own device, and the PDO device name will start with the
+ object position number as the first character followed by the
+ power supply type name (":" as delimiter).
+
+ /sys/class/usb_power_delivery/.../source_capabilities/<position>:<type>
+
+What: /sys/class/usb_power_delivery/.../sink-capabilities
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The sink capability message "Sink_Capabilities" contains a set
+ of Power Data Objects (PDO) just like with source capabilities,
+ but instead of describing the power capabilities, these objects
+ describe the power requirements.
+
+ The order of the objects in the sink capability message is the
+ same as with the source capabilities message.
+
+Fixed Supplies
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:fixed_supply
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Devices containing the attributes (the bit fields) defined for
+ Fixed Supplies.
+
+ The device "1:fixed_supply" is special. USB Power Delivery
+ Specification dictates that the first PDO (at object position
+ 1), and the only mandatory PDO, is always the vSafe5V Fixed
+ Supply Object. vSafe5V Object has additional fields defined for
+ it that the other Fixed Supply Objects do not have and that are
+ related to the USB capabilities rather than power capabilities.
+
+What: /sys/class/usb_power_delivery/.../<capability>/1:fixed_supply/dual_role_power
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file contains boolean value that tells does the device
+ support both source and sink power roles.
+
+What: /sys/class/usb_power_delivery/.../<capability>/1:fixed_supply/usb_suspend_supported
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file shows the value of the USB Suspend Supported bit in
+ vSafe5V Fixed Supply Object. If the bit is set then the device
+ will follow the USB 2.0 and USB 3.2 rules for suspend and
+ resume.
+
+What: /sys/class/usb_power_delivery/.../<capability>/1:fixed_supply/unconstrained_power
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file shows the value of the Unconstrained Power bit in
+ vSafe5V Fixed Supply Object. The bit is set when an external
+ source of power, powerful enough to power the entire system on
+ its own, is available for the device.
+
+What: /sys/class/usb_power_delivery/.../<capability>/1:fixed_supply/usb_communication_capable
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file shows the value of the USB Communication Capable bit in
+ vSafe5V Fixed Supply Object.
+
+What: /sys/class/usb_power_delivery/.../<capability>/1:fixed_supply/dual_role_data
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file shows the value of the Dual-Role Data bit in vSafe5V
+ Fixed Supply Object. Dual role data means ability act as both
+ USB host and USB device.
+
+What: /sys/class/usb_power_delivery/.../<capability>/1:fixed_supply/unchunked_extended_messages_supported
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file shows the value of the Unchunked Extended Messages
+ Supported bit in vSafe5V Fixed Supply Object.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:fixed_supply/voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The voltage the supply supports in millivolts.
+
+What: /sys/class/usb_power_delivery/.../source-capabilities/<position>:fixed_supply/maximum_current
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Maximum current of the fixed source supply in milliamperes.
+
+What: /sys/class/usb_power_delivery/.../sink-capabilities/<position>:fixed_supply/operational_current
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Operational current of the sink in milliamperes.
+
+What: /sys/class/usb_power_delivery/.../sink-capabilities/<position>:fixed_supply/fast_role_swap_current
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ This file contains the value of the "Fast Role Swap USB Type-C
+ Current" field that tells the current level the sink requires
+ after a Fast Role Swap.
+ 0 - Fast Swap not supported"
+ 1 - Default USB Power"
+ 2 - 1.5A@5V"
+ 3 - 3.0A@5V"
+
+Variable Supplies
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:variable_supply
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Variable Power Supply PDO.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:variable_supply/maximum_voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Maximum Voltage in millivolts.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:variable_supply/minimum_voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Minimum Voltage in millivolts.
+
+What: /sys/class/usb_power_delivery/.../source-capabilities/<position>:variable_supply/maximum_current
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The maximum current in milliamperes that the source can supply
+ at the given Voltage range.
+
+What: /sys/class/usb_power_delivery/.../sink-capabilities/<position>:variable_supply/operational_current
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The operational current in milliamperes that the sink requires
+ at the given Voltage range.
+
+Battery Supplies
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:battery
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Battery PDO.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:battery/maximum_voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Maximum Voltage in millivolts.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:battery/minimum_voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Minimum Voltage in millivolts.
+
+What: /sys/class/usb_power_delivery/.../source-capabilities/<position>:battery/maximum_power
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Maximum allowable Power in milliwatts.
+
+What: /sys/class/usb_power_delivery/.../sink-capabilities/<position>:battery/operational_power
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The operational power that the sink requires at the given
+ voltage range.
+
+Standard Power Range (SPR) Programmable Power Supplies
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:programmable_supply
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Programmable Power Supply (PPS) Augmented PDO (APDO).
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:programmable_supply/maximum_voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Maximum Voltage in millivolts.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:programmable_supply/minimum_voltage
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Minimum Voltage in millivolts.
+
+What: /sys/class/usb_power_delivery/.../<capability>/<position>:programmable_supply/maximum_current
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ Maximum Current in milliamperes.
+
+What: /sys/class/usb_power_delivery/.../source-capabilities/<position>:programmable_supply/pps_power_limited
+Date: May 2022
+Contact: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+Description:
+ The PPS Power Limited bit indicates whether or not the source
+ supply will exceed the rated output power if requested.
diff --git a/Documentation/ABI/testing/sysfs-class-vduse b/Documentation/ABI/testing/sysfs-class-vduse
new file mode 100644
index 000000000000..2f2bc5c8fc48
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-vduse
@@ -0,0 +1,33 @@
+What: /sys/class/vduse/
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ The vduse/ class sub-directory belongs to the VDUSE
+ framework and provides a sysfs interface for configuring
+ VDUSE devices.
+
+What: /sys/class/vduse/control/
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ This directory entry is created for the control device
+ of VDUSE framework.
+
+What: /sys/class/vduse/<device-name>/
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ This directory entry is created when a VDUSE device is
+ created via the control device.
+
+What: /sys/class/vduse/<device-name>/msg_timeout
+Date: Oct 2021
+KernelVersion: 5.15
+Contact: Yongji Xie <xieyongji@bytedance.com>
+Description:
+ (RW) The timeout (in seconds) for waiting for the control
+ message's response from userspace. Default value is 30s.
+ Writing a '0' to the file means to disable the timeout.
diff --git a/Documentation/ABI/testing/sysfs-devices-hisi_ptt b/Documentation/ABI/testing/sysfs-devices-hisi_ptt
new file mode 100644
index 000000000000..82de6d710266
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-hisi_ptt
@@ -0,0 +1,61 @@
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: This directory contains files for tuning the PCIe link
+ parameters(events). Each file is named after the event
+ of the PCIe link.
+
+ See Documentation/trace/hisi-ptt.rst for more information.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_cpl
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx completion TLPs, which influence
+ the proportion of outbound completion TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_np
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx non-posted TLPs, which influence
+ the proportion of outbound non-posted TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/qos_tx_p
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Controls the weight of Tx posted TLPs, which influence the
+ proportion of outbound posted TLPs on the PCIe link.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/rx_alloc_buf_level
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Control the allocated buffer watermark for inbound packets.
+ The packets will be stored in the buffer first and then transmitted
+ either when the watermark reached or when timed out.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
+
+What: /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune/tx_alloc_buf_level
+Date: October 2022
+KernelVersion: 6.1
+Contact: Yicong Yang <yangyicong@hisilicon.com>
+Description: (RW) Control the allocated buffer watermark of outbound packets.
+ The packets will be stored in the buffer first and then transmitted
+ either when the watermark reached or when timed out.
+ The available tune data is [0, 1, 2]. Writing a negative value
+ will return an error, and out of range values will be converted
+ to 2. The value indicates a probable level of the event.
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-ACPI-TAD b/Documentation/ABI/testing/sysfs-devices-platform-ACPI-TAD
index f7b360a61b21..bc44bc903bc8 100644
--- a/Documentation/ABI/testing/sysfs-devices-platform-ACPI-TAD
+++ b/Documentation/ABI/testing/sysfs-devices-platform-ACPI-TAD
@@ -74,7 +74,7 @@ Description:
Reads also cause the AC alarm timer status to be reset.
- Another way to reset the the status of the AC alarm timer is to
+ Another way to reset the status of the AC alarm timer is to
write (the number) 0 to this file.
If the status return value indicates that the timer has expired,
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-soc-ipa b/Documentation/ABI/testing/sysfs-devices-platform-soc-ipa
index c56dcf15bf29..364b1ba41242 100644
--- a/Documentation/ABI/testing/sysfs-devices-platform-soc-ipa
+++ b/Documentation/ABI/testing/sysfs-devices-platform-soc-ipa
@@ -46,33 +46,69 @@ Description:
that is supported by the hardware. The possible values
are "MAPv4" or "MAPv5".
+What: .../XXXXXXX.ipa/endpoint_id/
+Date: July 2022
+KernelVersion: v5.19
+Contact: Alex Elder <elder@kernel.org>
+Description:
+ The .../XXXXXXX.ipa/endpoint_id/ directory contains
+ attributes that define IDs associated with IPA
+ endpoints. The "rx" or "tx" in an endpoint name is
+ from the perspective of the AP. An endpoint ID is a
+ small unsigned integer.
+
+What: .../XXXXXXX.ipa/endpoint_id/modem_rx
+Date: July 2022
+KernelVersion: v5.19
+Contact: Alex Elder <elder@kernel.org>
+Description:
+ The .../XXXXXXX.ipa/endpoint_id/modem_rx file contains
+ the ID of the AP endpoint on which packets originating
+ from the embedded modem are received.
+
+What: .../XXXXXXX.ipa/endpoint_id/modem_tx
+Date: July 2022
+KernelVersion: v5.19
+Contact: Alex Elder <elder@kernel.org>
+Description:
+ The .../XXXXXXX.ipa/endpoint_id/modem_tx file contains
+ the ID of the AP endpoint on which packets destined
+ for the embedded modem are sent.
+
+What: .../XXXXXXX.ipa/endpoint_id/monitor_rx
+Date: July 2022
+KernelVersion: v5.19
+Contact: Alex Elder <elder@kernel.org>
+Description:
+ The .../XXXXXXX.ipa/endpoint_id/monitor_rx file contains
+ the ID of the AP endpoint on which IPA "monitor" data is
+ received. The monitor endpoint supplies replicas of
+ packets that enter the IPA hardware for processing.
+ Each replicated packet is preceded by a fixed-size "ODL"
+ header (see .../XXXXXXX.ipa/feature/monitor, above).
+ Large packets are truncated, to reduce the bandwidth
+ required to provide the monitor function.
+
What: .../XXXXXXX.ipa/modem/
Date: June 2021
KernelVersion: v5.14
Contact: Alex Elder <elder@kernel.org>
Description:
- The .../XXXXXXX.ipa/modem/ directory contains a set of
- attributes describing properties of the modem execution
- environment reachable by the IPA hardware.
+ The .../XXXXXXX.ipa/modem/ directory contains attributes
+ describing properties of the modem embedded in the SoC.
What: .../XXXXXXX.ipa/modem/rx_endpoint_id
Date: June 2021
KernelVersion: v5.14
Contact: Alex Elder <elder@kernel.org>
Description:
- The .../XXXXXXX.ipa/feature/rx_endpoint_id file contains
- the AP endpoint ID that receives packets originating from
- the modem execution environment. The "rx" is from the
- perspective of the AP; this endpoint is considered an "IPA
- producer". An endpoint ID is a small unsigned integer.
+ The .../XXXXXXX.ipa/modem/rx_endpoint_id file duplicates
+ the value found in .../XXXXXXX.ipa/endpoint_id/modem_rx.
What: .../XXXXXXX.ipa/modem/tx_endpoint_id
Date: June 2021
KernelVersion: v5.14
Contact: Alex Elder <elder@kernel.org>
Description:
- The .../XXXXXXX.ipa/feature/tx_endpoint_id file contains
- the AP endpoint ID used to transmit packets destined for
- the modem execution environment. The "tx" is from the
- perspective of the AP; this endpoint is considered an "IPA
- consumer". An endpoint ID is a small unsigned integer.
+ The .../XXXXXXX.ipa/modem/tx_endpoint_id file duplicates
+ the value found in .../XXXXXXX.ipa/endpoint_id/modem_tx.
diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power
index 1b2a2d41ff80..54195530e97a 100644
--- a/Documentation/ABI/testing/sysfs-devices-power
+++ b/Documentation/ABI/testing/sysfs-devices-power
@@ -303,5 +303,5 @@ Date: Apr 2010
Contact: Dominik Brodowski <linux@dominikbrodowski.net>
Description:
Reports the runtime PM children usage count of a device, or
- 0 if the the children will be ignored.
+ 0 if the children will be ignored.
diff --git a/Documentation/ABI/testing/sysfs-devices-soc b/Documentation/ABI/testing/sysfs-devices-soc
index ea999e292f11..5269808ec35f 100644
--- a/Documentation/ABI/testing/sysfs-devices-soc
+++ b/Documentation/ABI/testing/sysfs-devices-soc
@@ -1,6 +1,6 @@
What: /sys/devices/socX
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
The /sys/devices/ directory contains a sub-directory for each
System-on-Chip (SoC) device on a running platform. Information
@@ -14,14 +14,14 @@ Description:
What: /sys/devices/socX/machine
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
Read-only attribute common to all SoCs. Contains the SoC machine
name (e.g. Ux500).
What: /sys/devices/socX/family
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
Read-only attribute common to all SoCs. Contains SoC family name
(e.g. DB8500).
@@ -59,7 +59,7 @@ Description:
What: /sys/devices/socX/soc_id
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
Read-only attribute supported by most SoCs. In the case of
ST-Ericsson's chips this contains the SoC serial number.
@@ -72,21 +72,21 @@ Description:
What: /sys/devices/socX/revision
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
Read-only attribute supported by most SoCs. Contains the SoC's
manufacturing revision number.
What: /sys/devices/socX/process
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
Read-only attribute supported ST-Ericsson's silicon. Contains the
the process by which the silicon chip was manufactured.
What: /sys/bus/soc
Date: January 2012
-contact: Lee Jones <lee.jones@linaro.org>
+contact: Lee Jones <lee@kernel.org>
Description:
The /sys/bus/soc/ directory contains the usual sub-folders
expected under most buses. /sys/bus/soc/devices is of particular
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index bcc974d276dc..f54867cadb0f 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -67,8 +67,7 @@ Description: Discover NUMA node a CPU belongs to
/sys/devices/system/cpu/cpu42/node2 -> ../../node/node2
-What: /sys/devices/system/cpu/cpuX/topology/core_id
- /sys/devices/system/cpu/cpuX/topology/core_siblings
+What: /sys/devices/system/cpu/cpuX/topology/core_siblings
/sys/devices/system/cpu/cpuX/topology/core_siblings_list
/sys/devices/system/cpu/cpuX/topology/physical_package_id
/sys/devices/system/cpu/cpuX/topology/thread_siblings
@@ -84,10 +83,6 @@ Description: CPU topology files that describe a logical CPU's relationship
Briefly, the files above are:
- core_id: the CPU core ID of cpuX. Typically it is the
- hardware platform's identifier (rather than the kernel's).
- The actual value is architecture and platform dependent.
-
core_siblings: internal kernel map of cpuX's hardware threads
within the same physical_package_id.
@@ -301,7 +296,7 @@ Description: Processor frequency boosting control
This switch controls the boost setting for the whole system.
Boosting allows the CPU and the firmware to run at a frequency
- beyond it's nominal limit.
+ beyond its nominal limit.
More details can be found in
Documentation/admin-guide/pm/cpufreq.rst
@@ -493,12 +488,13 @@ What: /sys/devices/system/cpu/cpuX/regs/
/sys/devices/system/cpu/cpuX/regs/identification/
/sys/devices/system/cpu/cpuX/regs/identification/midr_el1
/sys/devices/system/cpu/cpuX/regs/identification/revidr_el1
+ /sys/devices/system/cpu/cpuX/regs/identification/smidr_el1
Date: June 2016
Contact: Linux ARM Kernel Mailing list <linux-arm-kernel@lists.infradead.org>
Description: AArch64 CPU registers
'identification' directory exposes the CPU ID registers for
- identifying model and revision of the CPU.
+ identifying model and revision of the CPU and SMCU.
What: /sys/devices/system/cpu/aarch32_el0
Date: May 2021
@@ -527,6 +523,7 @@ What: /sys/devices/system/cpu/vulnerabilities
/sys/devices/system/cpu/vulnerabilities/tsx_async_abort
/sys/devices/system/cpu/vulnerabilities/itlb_multihit
/sys/devices/system/cpu/vulnerabilities/mmio_stale_data
+ /sys/devices/system/cpu/vulnerabilities/retbleed
Date: January 2018
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Information about CPU vulnerabilities
diff --git a/Documentation/ABI/testing/sysfs-driver-habanalabs b/Documentation/ABI/testing/sysfs-driver-habanalabs
index 96646fb2e7a1..13b5b2ec3be7 100644
--- a/Documentation/ABI/testing/sysfs-driver-habanalabs
+++ b/Documentation/ABI/testing/sysfs-driver-habanalabs
@@ -16,7 +16,7 @@ Description: Version of the application running on the device's CPU
What: /sys/class/habanalabs/hl<n>/clk_max_freq_mhz
Date: Jun 2019
-KernelVersion: not yet upstreamed
+KernelVersion: 5.7
Contact: ogabbay@kernel.org
Description: Allows the user to set the maximum clock frequency, in MHz.
The device clock might be set to lower value than the maximum.
@@ -26,7 +26,7 @@ Description: Allows the user to set the maximum clock frequency, in MHz.
What: /sys/class/habanalabs/hl<n>/clk_cur_freq_mhz
Date: Jun 2019
-KernelVersion: not yet upstreamed
+KernelVersion: 5.7
Contact: ogabbay@kernel.org
Description: Displays the current frequency, in MHz, of the device clock.
This property is valid only for the Gaudi ASIC family
@@ -176,6 +176,12 @@ KernelVersion: 5.1
Contact: ogabbay@kernel.org
Description: Version of the device's preboot F/W code
+What: /sys/class/habanalabs/hl<n>/security_enabled
+Date: Oct 2022
+KernelVersion: 6.1
+Contact: obitton@habana.ai
+Description: Displays the device's security status
+
What: /sys/class/habanalabs/hl<n>/soft_reset
Date: Jan 2019
KernelVersion: 5.1
@@ -230,6 +236,6 @@ Description: Version of the u-boot running on the device's CPU
What: /sys/class/habanalabs/hl<n>/vrm_ver
Date: Jan 2022
-KernelVersion: not yet upstreamed
+KernelVersion: 5.17
Contact: ogabbay@kernel.org
Description: Version of the Device's Voltage Regulator Monitor F/W code. N/A to GOYA and GAUDI
diff --git a/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
new file mode 100644
index 000000000000..0a41afe0ab4c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-intel-m10-bmc-sec-update
@@ -0,0 +1,61 @@
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/sr_root_entry_hash
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns the root entry hash for the static
+ region if one is programmed, else it returns the
+ string: "hash not programmed". This file is only
+ visible if the underlying device supports it.
+ Format: string.
+
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/pr_root_entry_hash
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns the root entry hash for the partial
+ reconfiguration region if one is programmed, else it
+ returns the string: "hash not programmed". This file
+ is only visible if the underlying device supports it.
+ Format: string.
+
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/bmc_root_entry_hash
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns the root entry hash for the BMC image
+ if one is programmed, else it returns the string:
+ "hash not programmed". This file is only visible if the
+ underlying device supports it.
+ Format: string.
+
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/sr_canceled_csks
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns a list of indices for canceled code
+ signing keys for the static region. The standard bitmap
+ list format is used (e.g. "1,2-6,9").
+
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/pr_canceled_csks
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns a list of indices for canceled code
+ signing keys for the partial reconfiguration region. The
+ standard bitmap list format is used (e.g. "1,2-6,9").
+
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/bmc_canceled_csks
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns a list of indices for canceled code
+ signing keys for the BMC. The standard bitmap list format
+ is used (e.g. "1,2-6,9").
+
+What: /sys/bus/platform/drivers/intel-m10bmc-sec-update/.../security/flash_count
+Date: Sep 2022
+KernelVersion: 5.20
+Contact: Russ Weight <russell.h.weight@intel.com>
+Description: Read only. Returns number of times the secure update
+ staging area has been flashed.
+ Format: "%u".
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat
new file mode 100644
index 000000000000..185f81a2aab3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-qat
@@ -0,0 +1,49 @@
+What: /sys/bus/pci/devices/<BDF>/qat/state
+Date: June 2022
+KernelVersion: 5.20
+Contact: qat-linux@intel.com
+Description: (RW) Reports the current state of the QAT device. Write to
+ the file to start or stop the device.
+
+ The values are:
+
+ * up: the device is up and running
+ * down: the device is down
+
+
+ It is possible to transition the device from up to down only
+ if the device is up and vice versa.
+
+ This attribute is only available for qat_4xxx devices.
+
+What: /sys/bus/pci/devices/<BDF>/qat/cfg_services
+Date: June 2022
+KernelVersion: 5.20
+Contact: qat-linux@intel.com
+Description: (RW) Reports the current configuration of the QAT device.
+ Write to the file to change the configured services.
+
+ The values are:
+
+ * sym;asym: the device is configured for running crypto
+ services
+ * dc: the device is configured for running compression services
+
+ It is possible to set the configuration only if the device
+ is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state)
+
+ The following example shows how to change the configuration of
+ a device configured for running crypto services in order to
+ run data compression::
+
+ # cat /sys/bus/pci/devices/<BDF>/qat/state
+ up
+ # cat /sys/bus/pci/devices/<BDF>/qat/cfg_services
+ sym;asym
+ # echo down > /sys/bus/pci/devices/<BDF>/qat/state
+ # echo dc > /sys/bus/pci/devices/<BDF>/qat/cfg_services
+ # echo up > /sys/bus/pci/devices/<BDF>/qat/state
+ # cat /sys/bus/pci/devices/<BDF>/qat/cfg_services
+ dc
+
+ This attribute is only available for qat_4xxx devices.
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 6b248abb1bd7..228aa43e14ed 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -1417,6 +1417,15 @@ Description: This node is used to set or display whether UFS WriteBooster is
platform that doesn't support UFSHCD_CAP_CLK_SCALING, we can
disable/enable WriteBooster through this sysfs node.
+What: /sys/bus/platform/drivers/ufshcd/*/enable_wb_buf_flush
+What: /sys/bus/platform/devices/*.ufs/enable_wb_buf_flush
+Date: July 2022
+Contact: Jinyoung Choi <j-young.choi@samsung.com>
+Description: This entry shows the status of WriteBooster buffer flushing
+ and it can be used to enable or disable the flushing.
+ If flushing is enabled, the device executes the flush
+ operation when the command queue is empty.
+
What: /sys/bus/platform/drivers/ufshcd/*/device_descriptor/hpb_version
What: /sys/bus/platform/devices/*.ufs/device_descriptor/hpb_version
Date: June 2021
@@ -1591,6 +1600,43 @@ Description: This entry shows the status of HPB.
The file is read only.
+Contact: Daniil Lunev <dlunev@chromium.org>
+What: /sys/bus/platform/drivers/ufshcd/*/capabilities/
+What: /sys/bus/platform/devices/*.ufs/capabilities/
+Date: August 2022
+Description: The group represents the effective capabilities of the
+ host-device pair. i.e. the capabilities which are enabled in the
+ driver for the specific host controller, supported by the host
+ controller and are supported and/or have compatible
+ configuration on the device side.
+
+Contact: Daniil Lunev <dlunev@chromium.org>
+What: /sys/bus/platform/drivers/ufshcd/*/capabilities/clock_scaling
+What: /sys/bus/platform/devices/*.ufs/capabilities/clock_scaling
+Date: August 2022
+Contact: Daniil Lunev <dlunev@chromium.org>
+Description: Indicates status of clock scaling.
+
+ == ============================
+ 0 Clock scaling is not supported.
+ 1 Clock scaling is supported.
+ == ============================
+
+ The file is read only.
+
+What: /sys/bus/platform/drivers/ufshcd/*/capabilities/write_booster
+What: /sys/bus/platform/devices/*.ufs/capabilities/write_booster
+Date: August 2022
+Contact: Daniil Lunev <dlunev@chromium.org>
+Description: Indicates status of Write Booster.
+
+ == ============================
+ 0 Write Booster can not be enabled.
+ 1 Write Booster can be enabled.
+ == ============================
+
+ The file is read only.
+
What: /sys/class/scsi_device/*/device/hpb_param_sysfs/activation_thld
Date: February 2021
Contact: Avri Altman <avri.altman@wdc.com>
diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkback b/Documentation/ABI/testing/sysfs-driver-xen-blkback
index 7faf719af165..fac0f429a869 100644
--- a/Documentation/ABI/testing/sysfs-driver-xen-blkback
+++ b/Documentation/ABI/testing/sysfs-driver-xen-blkback
@@ -42,5 +42,5 @@ KernelVersion: 5.10
Contact: Maximilian Heyne <mheyne@amazon.de>
Description:
Whether to enable the persistent grants feature or not. Note
- that this option only takes effect on newly created backends.
+ that this option only takes effect on newly connected backends.
The default is Y (enable).
diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkfront b/Documentation/ABI/testing/sysfs-driver-xen-blkfront
index 7f646c58832e..4d36c5a10546 100644
--- a/Documentation/ABI/testing/sysfs-driver-xen-blkfront
+++ b/Documentation/ABI/testing/sysfs-driver-xen-blkfront
@@ -15,5 +15,5 @@ KernelVersion: 5.10
Contact: Maximilian Heyne <mheyne@amazon.de>
Description:
Whether to enable the persistent grants feature or not. Note
- that this option only takes effect on newly created frontends.
+ that this option only takes effect on newly connected frontends.
The default is Y (enable).
diff --git a/Documentation/ABI/testing/sysfs-firmware-qemu_fw_cfg b/Documentation/ABI/testing/sysfs-firmware-qemu_fw_cfg
index ee0d6dbc810e..54d1bfd0db12 100644
--- a/Documentation/ABI/testing/sysfs-firmware-qemu_fw_cfg
+++ b/Documentation/ABI/testing/sysfs-firmware-qemu_fw_cfg
@@ -12,8 +12,9 @@ Description:
configuration data to the guest userspace.
The authoritative guest-side hardware interface documentation
- to the fw_cfg device can be found in "docs/specs/fw_cfg.txt"
- in the QEMU source tree.
+ to the fw_cfg device can be found in "docs/specs/fw_cfg.rst"
+ in the QEMU source tree, or online at:
+ https://qemu-project.gitlab.io/qemu/specs/fw_cfg.html
**SysFS fw_cfg Interface**
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs
index 9b583dd0298b..483639fb727b 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -466,6 +466,30 @@ Description: Show status of f2fs superblock in real time.
0x4000 SBI_IS_FREEZING freefs is in process
====== ===================== =================================
+What: /sys/fs/f2fs/<disk>/stat/cp_status
+Date: September 2022
+Contact: "Chao Yu" <chao.yu@oppo.com>
+Description: Show status of f2fs checkpoint in real time.
+
+ =============================== ==============================
+ cp flag value
+ CP_UMOUNT_FLAG 0x00000001
+ CP_ORPHAN_PRESENT_FLAG 0x00000002
+ CP_COMPACT_SUM_FLAG 0x00000004
+ CP_ERROR_FLAG 0x00000008
+ CP_FSCK_FLAG 0x00000010
+ CP_FASTBOOT_FLAG 0x00000020
+ CP_CRC_RECOVERY_FLAG 0x00000040
+ CP_NAT_BITS_FLAG 0x00000080
+ CP_TRIMMED_FLAG 0x00000100
+ CP_NOCRC_RECOVERY_FLAG 0x00000200
+ CP_LARGE_NAT_BITMAP_FLAG 0x00000400
+ CP_QUOTA_NEED_FSCK_FLAG 0x00000800
+ CP_DISABLED_FLAG 0x00001000
+ CP_DISABLED_QUICK_FLAG 0x00002000
+ CP_RESIZEFS_FLAG 0x00004000
+ =============================== ==============================
+
What: /sys/fs/f2fs/<disk>/ckpt_thread_ioprio
Date: January 2021
Contact: "Daeho Jeong" <daehojeong@google.com>
@@ -580,3 +604,33 @@ Date: January 2022
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
Description: Controls max # of node block writes to be used for roll forward
recovery. This can limit the roll forward recovery time.
+
+What: /sys/fs/f2fs/<disk>/unusable_blocks_per_sec
+Date: June 2022
+Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
+Description: Shows the number of unusable blocks in a section which was defined by
+ the zone capacity reported by underlying zoned device.
+
+What: /sys/fs/f2fs/<disk>/current_atomic_write
+Date: July 2022
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Show the total current atomic write block count, which is not committed yet.
+ This is a read-only entry.
+
+What: /sys/fs/f2fs/<disk>/peak_atomic_write
+Date: July 2022
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Show the peak value of total current atomic write block count after boot.
+ If you write "0" here, you can initialize to "0".
+
+What: /sys/fs/f2fs/<disk>/committed_atomic_block
+Date: July 2022
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Show the accumulated total committed atomic write block count after boot.
+ If you write "0" here, you can initialize to "0".
+
+What: /sys/fs/f2fs/<disk>/revoked_atomic_block
+Date: July 2022
+Contact: "Daeho Jeong" <daehojeong@google.com>
+Description: Show the accumulated total revoked atomic write block count after boot.
+ If you write "0" here, you can initialize to "0".
diff --git a/Documentation/ABI/testing/sysfs-kernel-livepatch b/Documentation/ABI/testing/sysfs-kernel-livepatch
index bea7bd5a1d5f..a5df9b4910dc 100644
--- a/Documentation/ABI/testing/sysfs-kernel-livepatch
+++ b/Documentation/ABI/testing/sysfs-kernel-livepatch
@@ -55,6 +55,14 @@ Description:
The object directory contains subdirectories for each function
that is patched within the object.
+What: /sys/kernel/livepatch/<patch>/<object>/patched
+Date: August 2022
+KernelVersion: 6.1.0
+Contact: live-patching@vger.kernel.org
+Description:
+ An attribute which indicates whether the object is currently
+ patched.
+
What: /sys/kernel/livepatch/<patch>/<object>/<function,sympos>
Date: Nov 2014
KernelVersion: 3.19.0
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-ksm b/Documentation/ABI/testing/sysfs-kernel-mm-ksm
index 1c9bed5595f5..d244674a9480 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-ksm
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-ksm
@@ -41,7 +41,7 @@ Description: Kernel Samepage Merging daemon sysfs interface
sleep_millisecs: how many milliseconds ksm should sleep between
scans.
- See Documentation/vm/ksm.rst for more information.
+ See Documentation/mm/ksm.rst for more information.
What: /sys/kernel/mm/ksm/merge_across_nodes
Date: January 2013
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers b/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
new file mode 100644
index 000000000000..45985e411f13
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-memory-tiers
@@ -0,0 +1,25 @@
+What: /sys/devices/virtual/memory_tiering/
+Date: August 2022
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: A collection of all the memory tiers allocated.
+
+ Individual memory tier details are contained in subdirectories
+ named by the abstract distance of the memory tier.
+
+ /sys/devices/virtual/memory_tiering/memory_tierN/
+
+
+What: /sys/devices/virtual/memory_tiering/memory_tierN/
+ /sys/devices/virtual/memory_tiering/memory_tierN/nodes
+Date: August 2022
+Contact: Linux memory management mailing list <linux-mm@kvack.org>
+Description: Directory with details of a specific memory tier
+
+ This is the directory containing information about a particular
+ memory tier, memtierN, where N is derived based on abstract distance.
+
+ A smaller value of N implies a higher (faster) memory tier in the
+ hierarchy.
+
+ nodes: NUMA nodes that are part of this memory tier.
+
diff --git a/Documentation/ABI/testing/sysfs-kernel-slab b/Documentation/ABI/testing/sysfs-kernel-slab
index c440f4946e12..cd5fb8fa3ddf 100644
--- a/Documentation/ABI/testing/sysfs-kernel-slab
+++ b/Documentation/ABI/testing/sysfs-kernel-slab
@@ -37,7 +37,7 @@ Description:
The alloc_calls file is read-only and lists the kernel code
locations from which allocations for this cache were performed.
The alloc_calls file only contains information if debugging is
- enabled for that cache (see Documentation/vm/slub.rst).
+ enabled for that cache (see Documentation/mm/slub.rst).
What: /sys/kernel/slab/<cache>/alloc_fastpath
Date: February 2008
@@ -219,7 +219,7 @@ Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Description:
The free_calls file is read-only and lists the locations of
object frees if slab debugging is enabled (see
- Documentation/vm/slub.rst).
+ Documentation/mm/slub.rst).
What: /sys/kernel/slab/<cache>/free_fastpath
Date: February 2008
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 04885738cf15..a77a004a1baa 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -57,3 +57,44 @@ Description:
* 0 - default,
* 1 - overboost,
* 2 - silent
+
+What: /sys/devices/platform/<platform>/gpu_mux_mode
+Date: Aug 2022
+KernelVersion: 6.1
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Switch the GPU hardware MUX mode. Laptops with this feature can
+ can be toggled to boot with only the dGPU (discrete mode) or in
+ standard Optimus/Hybrid mode. On switch a reboot is required:
+
+ * 0 - Discrete GPU,
+ * 1 - Optimus/Hybrid,
+
+What: /sys/devices/platform/<platform>/dgpu_disable
+Date: Aug 2022
+KernelVersion: 5.17
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Disable discrete GPU:
+ * 0 - Enable dGPU,
+ * 1 - Disable dGPU
+
+What: /sys/devices/platform/<platform>/egpu_enable
+Date: Aug 2022
+KernelVersion: 5.17
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Enable the external GPU paired with ROG X-Flow laptops.
+ Toggling this setting will also trigger ACPI to disable the dGPU:
+
+ * 0 - Disable,
+ * 1 - Enable
+
+What: /sys/devices/platform/<platform>/panel_od
+Date: Aug 2022
+KernelVersion: 5.17
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Enable an LCD response-time boost to reduce or remove ghosting:
+ * 0 - Disable,
+ * 1 - Enable
diff --git a/Documentation/ABI/testing/sysfs-platform-brcmstb-memc b/Documentation/ABI/testing/sysfs-platform-brcmstb-memc
new file mode 100644
index 000000000000..2f2b750ac2fd
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-platform-brcmstb-memc
@@ -0,0 +1,15 @@
+What: /sys/bus/platform/devices/*/srpd
+Date: July 2022
+KernelVersion: 5.21
+Contact: Florian Fainelli <f.fainelli@gmail.com>
+Description:
+ Self Refresh Power Down (SRPD) inactivity timeout counted in
+ internal DDR controller clock cycles. Possible values range
+ from 0 (disable inactivity timeout) to 65535 (0xffff).
+
+What: /sys/bus/platform/devices/*/frequency
+Date: July 2022
+KernelVersion: 5.21
+Contact: Florian Fainelli <f.fainelli@gmail.com>
+Description:
+ DDR PHY frequency in Hz.
diff --git a/Documentation/ABI/testing/sysfs-platform-chipidea-usb2 b/Documentation/ABI/testing/sysfs-platform-chipidea-usb2
index b0f4684a83fe..b9f7d924f28a 100644
--- a/Documentation/ABI/testing/sysfs-platform-chipidea-usb2
+++ b/Documentation/ABI/testing/sysfs-platform-chipidea-usb2
@@ -2,8 +2,8 @@ What: /sys/bus/platform/devices/ci_hdrc.0/role
Date: Mar 2017
Contact: Peter Chen <peter.chen@nxp.com>
Description:
- It returns string "gadget" or "host" when read it, it indicates
- current controller role.
+ When read, it returns string "gadget" or "host", indicating
+ the current controller role.
- It will do role switch when write "gadget" or "host" to it.
+ It will do role switch when "gadget" or "host" is written to it.
Only controller at dual-role configuration supports writing.
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 90ec4987074b..f99d433ff311 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -152,7 +152,7 @@ Description:
case further investigation is required to determine which
device is causing the problem. Note that genuine RTC clock
values (such as when pm_trace has not been used), can still
- match a device and output it's name here.
+ match a device and output its name here.
What: /sys/power/pm_async
Date: January 2009
diff --git a/Documentation/Kconfig b/Documentation/Kconfig
index e549a61f4d96..252bfc164dbd 100644
--- a/Documentation/Kconfig
+++ b/Documentation/Kconfig
@@ -1,23 +1,22 @@
config WARN_MISSING_DOCUMENTS
-
bool "Warn if there's a missing documentation file"
depends on COMPILE_TEST
help
- It is not uncommon that a document gets renamed.
- This option makes the Kernel to check for missing dependencies,
- warning when something is missing. Works only if the Kernel
- is built from a git tree.
+ It is not uncommon that a document gets renamed.
+ This option makes the Kernel to check for missing dependencies,
+ warning when something is missing. Works only if the Kernel
+ is built from a git tree.
- If unsure, select 'N'.
+ If unsure, select 'N'.
config WARN_ABI_ERRORS
bool "Warn if there are errors at ABI files"
depends on COMPILE_TEST
help
- The files under Documentation/ABI should follow what's
- described at Documentation/ABI/README. Yet, as they're manually
- written, it would be possible that some of those files would
- have errors that would break them for being parsed by
- scripts/get_abi.pl. Add a check to verify them.
+ The files under Documentation/ABI should follow what's
+ described at Documentation/ABI/README. Yet, as they're manually
+ written, it would be possible that some of those files would
+ have errors that would break them for being parsed by
+ scripts/get_abi.pl. Add a check to verify them.
- If unsure, select 'N'.
+ If unsure, select 'N'.
diff --git a/Documentation/PCI/endpoint/index.rst b/Documentation/PCI/endpoint/index.rst
index 38ea1f604b6d..4d2333e7ae06 100644
--- a/Documentation/PCI/endpoint/index.rst
+++ b/Documentation/PCI/endpoint/index.rst
@@ -13,6 +13,8 @@ PCI Endpoint Framework
pci-test-howto
pci-ntb-function
pci-ntb-howto
+ pci-vntb-function
+ pci-vntb-howto
function/binding/pci-test
function/binding/pci-ntb
diff --git a/Documentation/PCI/endpoint/pci-vntb-function.rst b/Documentation/PCI/endpoint/pci-vntb-function.rst
new file mode 100644
index 000000000000..0c51f53ab972
--- /dev/null
+++ b/Documentation/PCI/endpoint/pci-vntb-function.rst
@@ -0,0 +1,129 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+PCI vNTB Function
+=================
+
+:Author: Frank Li <Frank.Li@nxp.com>
+
+The difference between PCI NTB function and PCI vNTB function is
+
+PCI NTB function need at two endpoint instances and connect HOST1
+and HOST2.
+
+PCI vNTB function only use one host and one endpoint(EP), use NTB
+connect EP and PCI host
+
+.. code-block:: text
+
+
+ +------------+ +---------------------------------------+
+ | | | |
+ +------------+ | +--------------+
+ | NTB | | | NTB |
+ | NetDev | | | NetDev |
+ +------------+ | +--------------+
+ | NTB | | | NTB |
+ | Transfer | | | Transfer |
+ +------------+ | +--------------+
+ | | | | |
+ | PCI NTB | | | |
+ | EPF | | | |
+ | Driver | | | PCI Virtual |
+ | | +---------------+ | NTB Driver |
+ | | | PCI EP NTB |<------>| |
+ | | | FN Driver | | |
+ +------------+ +---------------+ +--------------+
+ | | | | | |
+ | PCI BUS | <-----> | PCI EP BUS | | Virtual PCI |
+ | | PCI | | | BUS |
+ +------------+ +---------------+--------+--------------+
+ PCI RC PCI EP
+
+Constructs used for Implementing vNTB
+=====================================
+
+ 1) Config Region
+ 2) Self Scratchpad Registers
+ 3) Peer Scratchpad Registers
+ 4) Doorbell (DB) Registers
+ 5) Memory Window (MW)
+
+
+Config Region:
+--------------
+
+It is same as PCI NTB Function driver
+
+Scratchpad Registers:
+---------------------
+
+It is appended after Config region.
+
+.. code-block:: text
+
+
+ +--------------------------------------------------+ Base
+ | |
+ | |
+ | |
+ | Common Config Register |
+ | |
+ | |
+ | |
+ +-----------------------+--------------------------+ Base + span_offset
+ | | |
+ | Peer Span Space | Span Space |
+ | | |
+ | | |
+ +-----------------------+--------------------------+ Base + span_offset
+ | | | + span_count * 4
+ | | |
+ | Span Space | Peer Span Space |
+ | | |
+ +-----------------------+--------------------------+
+ Virtual PCI Pcie Endpoint
+ NTB Driver NTB Driver
+
+
+Doorbell Registers:
+-------------------
+
+ Doorbell Registers are used by the hosts to interrupt each other.
+
+Memory Window:
+--------------
+
+ Actual transfer of data between the two hosts will happen using the
+ memory window.
+
+Modeling Constructs:
+====================
+
+32-bit BARs.
+
+====== ===============
+BAR NO CONSTRUCTS USED
+====== ===============
+BAR0 Config Region
+BAR1 Doorbell
+BAR2 Memory Window 1
+BAR3 Memory Window 2
+BAR4 Memory Window 3
+BAR5 Memory Window 4
+====== ===============
+
+64-bit BARs.
+
+====== ===============================
+BAR NO CONSTRUCTS USED
+====== ===============================
+BAR0 Config Region + Scratchpad
+BAR1
+BAR2 Doorbell
+BAR3
+BAR4 Memory Window 1
+BAR5
+====== ===============================
+
+
diff --git a/Documentation/PCI/endpoint/pci-vntb-howto.rst b/Documentation/PCI/endpoint/pci-vntb-howto.rst
new file mode 100644
index 000000000000..4ab8e4a26d4b
--- /dev/null
+++ b/Documentation/PCI/endpoint/pci-vntb-howto.rst
@@ -0,0 +1,167 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================================================================
+PCI Non-Transparent Bridge (NTB) Endpoint Function (EPF) User Guide
+===================================================================
+
+:Author: Frank Li <Frank.Li@nxp.com>
+
+This document is a guide to help users use pci-epf-vntb function driver
+and ntb_hw_epf host driver for NTB functionality. The list of steps to
+be followed in the host side and EP side is given below. For the hardware
+configuration and internals of NTB using configurable endpoints see
+Documentation/PCI/endpoint/pci-vntb-function.rst
+
+Endpoint Device
+===============
+
+Endpoint Controller Devices
+---------------------------
+
+To find the list of endpoint controller devices in the system::
+
+ # ls /sys/class/pci_epc/
+ 5f010000.pcie_ep
+
+If PCI_ENDPOINT_CONFIGFS is enabled::
+
+ # ls /sys/kernel/config/pci_ep/controllers
+ 5f010000.pcie_ep
+
+Endpoint Function Drivers
+-------------------------
+
+To find the list of endpoint function drivers in the system::
+
+ # ls /sys/bus/pci-epf/drivers
+ pci_epf_ntb pci_epf_test pci_epf_vntb
+
+If PCI_ENDPOINT_CONFIGFS is enabled::
+
+ # ls /sys/kernel/config/pci_ep/functions
+ pci_epf_ntb pci_epf_test pci_epf_vntb
+
+
+Creating pci-epf-vntb Device
+----------------------------
+
+PCI endpoint function device can be created using the configfs. To create
+pci-epf-vntb device, the following commands can be used::
+
+ # mount -t configfs none /sys/kernel/config
+ # cd /sys/kernel/config/pci_ep/
+ # mkdir functions/pci_epf_vntb/func1
+
+The "mkdir func1" above creates the pci-epf-ntb function device that will
+be probed by pci_epf_vntb driver.
+
+The PCI endpoint framework populates the directory with the following
+configurable fields::
+
+ # ls functions/pci_epf_ntb/func1
+ baseclass_code deviceid msi_interrupts pci-epf-ntb.0
+ progif_code secondary subsys_id vendorid
+ cache_line_size interrupt_pin msix_interrupts primary
+ revid subclass_code subsys_vendor_id
+
+The PCI endpoint function driver populates these entries with default values
+when the device is bound to the driver. The pci-epf-vntb driver populates
+vendorid with 0xffff and interrupt_pin with 0x0001::
+
+ # cat functions/pci_epf_vntb/func1/vendorid
+ 0xffff
+ # cat functions/pci_epf_vntb/func1/interrupt_pin
+ 0x0001
+
+
+Configuring pci-epf-vntb Device
+-------------------------------
+
+The user can configure the pci-epf-vntb device using its configfs entry. In order
+to change the vendorid and the deviceid, the following
+commands can be used::
+
+ # echo 0x1957 > functions/pci_epf_vntb/func1/vendorid
+ # echo 0x0809 > functions/pci_epf_vntb/func1/deviceid
+
+In order to configure NTB specific attributes, a new sub-directory to func1
+should be created::
+
+ # mkdir functions/pci_epf_vntb/func1/pci_epf_vntb.0/
+
+The NTB function driver will populate this directory with various attributes
+that can be configured by the user::
+
+ # ls functions/pci_epf_vntb/func1/pci_epf_vntb.0/
+ db_count mw1 mw2 mw3 mw4 num_mws
+ spad_count
+
+A sample configuration for NTB function is given below::
+
+ # echo 4 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/db_count
+ # echo 128 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/spad_count
+ # echo 1 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/num_mws
+ # echo 0x100000 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/mw1
+
+A sample configuration for virtual NTB driver for virutal PCI bus::
+
+ # echo 0x1957 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/vntb_vid
+ # echo 0x080A > functions/pci_epf_vntb/func1/pci_epf_vntb.0/vntb_pid
+ # echo 0x10 > functions/pci_epf_vntb/func1/pci_epf_vntb.0/vbus_number
+
+Binding pci-epf-ntb Device to EP Controller
+--------------------------------------------
+
+NTB function device should be attached to PCI endpoint controllers
+connected to the host.
+
+ # ln -s controllers/5f010000.pcie_ep functions/pci-epf-ntb/func1/primary
+
+Once the above step is completed, the PCI endpoint controllers are ready to
+establish a link with the host.
+
+
+Start the Link
+--------------
+
+In order for the endpoint device to establish a link with the host, the _start_
+field should be populated with '1'. For NTB, both the PCI endpoint controllers
+should establish link with the host (imx8 don't need this steps)::
+
+ # echo 1 > controllers/5f010000.pcie_ep/start
+
+RootComplex Device
+==================
+
+lspci Output at Host side
+-------------------------
+
+Note that the devices listed here correspond to the values populated in
+"Creating pci-epf-ntb Device" section above::
+
+ # lspci
+ 00:00.0 PCI bridge: Freescale Semiconductor Inc Device 0000 (rev 01)
+ 01:00.0 RAM memory: Freescale Semiconductor Inc Device 0809
+
+Endpoint Device / Virtual PCI bus
+=================================
+
+lspci Output at EP Side / Virtual PCI bus
+-----------------------------------------
+
+Note that the devices listed here correspond to the values populated in
+"Creating pci-epf-ntb Device" section above::
+
+ # lspci
+ 10:00.0 Unassigned class [ffff]: Dawicontrol Computersysteme GmbH Device 1234 (rev ff)
+
+Using ntb_hw_epf Device
+-----------------------
+
+The host side software follows the standard NTB software architecture in Linux.
+All the existing client side NTB utilities like NTB Transport Client and NTB
+Netdev, NTB Ping Pong Test Client and NTB Tool Test Client can be used with NTB
+function device.
+
+For more information on NTB see
+:doc:`Non-Transparent Bridge <../../driver-api/ntb>`
diff --git a/Documentation/PCI/pci-iov-howto.rst b/Documentation/PCI/pci-iov-howto.rst
index b9fd003206f1..27d35933cea2 100644
--- a/Documentation/PCI/pci-iov-howto.rst
+++ b/Documentation/PCI/pci-iov-howto.rst
@@ -125,14 +125,14 @@ Following piece of code illustrates the usage of the SR-IOV API.
...
}
- static int dev_suspend(struct pci_dev *dev, pm_message_t state)
+ static int dev_suspend(struct device *dev)
{
...
return 0;
}
- static int dev_resume(struct pci_dev *dev)
+ static int dev_resume(struct device *dev)
{
...
@@ -165,8 +165,7 @@ Following piece of code illustrates the usage of the SR-IOV API.
.id_table = dev_id_table,
.probe = dev_probe,
.remove = dev_remove,
- .suspend = dev_suspend,
- .resume = dev_resume,
+ .driver.pm = &dev_pm_ops,
.shutdown = dev_shutdown,
.sriov_configure = dev_sriov_configure,
};
diff --git a/Documentation/PCI/sysfs-pci.rst b/Documentation/PCI/sysfs-pci.rst
index 742fbd21dc1f..f495185aa88a 100644
--- a/Documentation/PCI/sysfs-pci.rst
+++ b/Documentation/PCI/sysfs-pci.rst
@@ -125,7 +125,7 @@ implementation of that functionality. To support the historical interface of
mmap() through files in /proc/bus/pci, platforms may also set HAVE_PCI_MMAP.
Alternatively, platforms which set HAVE_PCI_MMAP may provide their own
-implementation of pci_mmap_page_range() instead of defining
+implementation of pci_mmap_resource_range() instead of defining
ARCH_GENERIC_PCI_MMAP_RESOURCE.
Platforms which support write-combining maps of PCI resources must define
diff --git a/Documentation/RCU/Design/Requirements/Requirements.rst b/Documentation/RCU/Design/Requirements/Requirements.rst
index 04ed8bf27a0e..a0f8164c8513 100644
--- a/Documentation/RCU/Design/Requirements/Requirements.rst
+++ b/Documentation/RCU/Design/Requirements/Requirements.rst
@@ -1844,10 +1844,10 @@ that meets this requirement.
Furthermore, NMI handlers can be interrupted by what appear to RCU to be
normal interrupts. One way that this can happen is for code that
-directly invokes rcu_irq_enter() and rcu_irq_exit() to be called
+directly invokes ct_irq_enter() and ct_irq_exit() to be called
from an NMI handler. This astonishing fact of life prompted the current
-code structure, which has rcu_irq_enter() invoking
-rcu_nmi_enter() and rcu_irq_exit() invoking rcu_nmi_exit().
+code structure, which has ct_irq_enter() invoking
+ct_nmi_enter() and ct_irq_exit() invoking ct_nmi_exit().
And yes, I also learned of this requirement the hard way.
Loadable Modules
@@ -2195,7 +2195,7 @@ scheduling-clock interrupt be enabled when RCU needs it to be:
sections, and RCU believes this CPU to be idle, no problem. This
sort of thing is used by some architectures for light-weight
exception handlers, which can then avoid the overhead of
- rcu_irq_enter() and rcu_irq_exit() at exception entry and
+ ct_irq_enter() and ct_irq_exit() at exception entry and
exit, respectively. Some go further and avoid the entireties of
irq_enter() and irq_exit().
Just make very sure you are running some of your tests with
@@ -2226,7 +2226,7 @@ scheduling-clock interrupt be enabled when RCU needs it to be:
+-----------------------------------------------------------------------+
| **Answer**: |
+-----------------------------------------------------------------------+
-| One approach is to do ``rcu_irq_exit();rcu_irq_enter();`` every so |
+| One approach is to do ``ct_irq_exit();ct_irq_enter();`` every so |
| often. But given that long-running interrupt handlers can cause other |
| problems, not least for response time, shouldn't you work to keep |
| your interrupt handler's runtime within reasonable bounds? |
diff --git a/Documentation/RCU/checklist.rst b/Documentation/RCU/checklist.rst
index 42cc5d891bd2..048c5bc1f813 100644
--- a/Documentation/RCU/checklist.rst
+++ b/Documentation/RCU/checklist.rst
@@ -66,8 +66,13 @@ over a rather long period of time, but improvements are always welcome!
As a rough rule of thumb, any dereference of an RCU-protected
pointer must be covered by rcu_read_lock(), rcu_read_lock_bh(),
rcu_read_lock_sched(), or by the appropriate update-side lock.
- Disabling of preemption can serve as rcu_read_lock_sched(), but
- is less readable and prevents lockdep from detecting locking issues.
+ Explicit disabling of preemption (preempt_disable(), for example)
+ can serve as rcu_read_lock_sched(), but is less readable and
+ prevents lockdep from detecting locking issues.
+
+ Please not that you *cannot* rely on code known to be built
+ only in non-preemptible kernels. Such code can and will break,
+ especially in kernels built with CONFIG_PREEMPT_COUNT=y.
Letting RCU-protected pointers "leak" out of an RCU read-side
critical section is every bit as bad as letting them leak out
@@ -185,6 +190,9 @@ over a rather long period of time, but improvements are always welcome!
5. If call_rcu() or call_srcu() is used, the callback function will
be called from softirq context. In particular, it cannot block.
+ If you need the callback to block, run that code in a workqueue
+ handler scheduled from the callback. The queue_rcu_work()
+ function does this for you in the case of call_rcu().
6. Since synchronize_rcu() can block, it cannot be called
from any sort of irq context. The same rule applies
@@ -297,7 +305,8 @@ over a rather long period of time, but improvements are always welcome!
the machine.
d. Periodically invoke synchronize_rcu(), permitting a limited
- number of updates per grace period.
+ number of updates per grace period. Better yet, periodically
+ invoke rcu_barrier() to wait for all outstanding callbacks.
The same cautions apply to call_srcu() and kfree_rcu().
@@ -477,6 +486,6 @@ over a rather long period of time, but improvements are always welcome!
So if you need to wait for both an RCU grace period and for
all pre-existing call_rcu() callbacks, you will need to execute
both rcu_barrier() and synchronize_rcu(), if necessary, using
- something like workqueues to to execute them concurrently.
+ something like workqueues to execute them concurrently.
See rcubarrier.rst for more information.
diff --git a/Documentation/RCU/lockdep.rst b/Documentation/RCU/lockdep.rst
index cc860a0c296b..a94f55991a71 100644
--- a/Documentation/RCU/lockdep.rst
+++ b/Documentation/RCU/lockdep.rst
@@ -61,7 +61,7 @@ checking of rcu_dereference() primitives:
rcu_access_pointer(p):
Return the value of the pointer and omit all barriers,
but retain the compiler constraints that prevent duplicating
- or coalescsing. This is useful when when testing the
+ or coalescsing. This is useful when testing the
value of the pointer itself, for example, against NULL.
The rcu_dereference_check() check expression can be any boolean
diff --git a/Documentation/RCU/rcu_dereference.rst b/Documentation/RCU/rcu_dereference.rst
index 0b418a5b243c..81e828c8313b 100644
--- a/Documentation/RCU/rcu_dereference.rst
+++ b/Documentation/RCU/rcu_dereference.rst
@@ -128,10 +128,16 @@ Follow these rules to keep your RCU code working properly:
This sort of comparison occurs frequently when scanning
RCU-protected circular linked lists.
- Note that if checks for being within an RCU read-side
- critical section are not required and the pointer is never
- dereferenced, rcu_access_pointer() should be used in place
- of rcu_dereference().
+ Note that if the pointer comparison is done outside
+ of an RCU read-side critical section, and the pointer
+ is never dereferenced, rcu_access_pointer() should be
+ used in place of rcu_dereference(). In most cases,
+ it is best to avoid accidental dereferences by testing
+ the rcu_access_pointer() return value directly, without
+ assigning it to a variable.
+
+ Within an RCU read-side critical section, there is little
+ reason to use rcu_access_pointer().
- The comparison is against a pointer that references memory
that was initialized "a long time ago." The reason
diff --git a/Documentation/RCU/stallwarn.rst b/Documentation/RCU/stallwarn.rst
index 794837eb519b..e38c587067fc 100644
--- a/Documentation/RCU/stallwarn.rst
+++ b/Documentation/RCU/stallwarn.rst
@@ -97,12 +97,12 @@ warnings:
which will include additional debugging information.
- A low-level kernel issue that either fails to invoke one of the
- variants of rcu_user_enter(), rcu_user_exit(), rcu_idle_enter(),
- rcu_idle_exit(), rcu_irq_enter(), or rcu_irq_exit() on the one
+ variants of rcu_eqs_enter(true), rcu_eqs_exit(true), ct_idle_enter(),
+ ct_idle_exit(), ct_irq_enter(), or ct_irq_exit() on the one
hand, or that invokes one of them too many times on the other.
Historically, the most frequent issue has been an omission
of either irq_enter() or irq_exit(), which in turn invoke
- rcu_irq_enter() or rcu_irq_exit(), respectively. Building your
+ ct_irq_enter() or ct_irq_exit(), respectively. Building your
kernel with CONFIG_RCU_EQS_DEBUG=y can help track down these types
of issues, which sometimes arise in architecture-specific code.
diff --git a/Documentation/RCU/whatisRCU.rst b/Documentation/RCU/whatisRCU.rst
index 77ea260efd12..1c747ac3f2c8 100644
--- a/Documentation/RCU/whatisRCU.rst
+++ b/Documentation/RCU/whatisRCU.rst
@@ -6,13 +6,15 @@ What is RCU? -- "Read, Copy, Update"
Please note that the "What is RCU?" LWN series is an excellent place
to start learning about RCU:
-| 1. What is RCU, Fundamentally? http://lwn.net/Articles/262464/
-| 2. What is RCU? Part 2: Usage http://lwn.net/Articles/263130/
-| 3. RCU part 3: the RCU API http://lwn.net/Articles/264090/
-| 4. The RCU API, 2010 Edition http://lwn.net/Articles/418853/
-| 2010 Big API Table http://lwn.net/Articles/419086/
-| 5. The RCU API, 2014 Edition http://lwn.net/Articles/609904/
-| 2014 Big API Table http://lwn.net/Articles/609973/
+| 1. What is RCU, Fundamentally? https://lwn.net/Articles/262464/
+| 2. What is RCU? Part 2: Usage https://lwn.net/Articles/263130/
+| 3. RCU part 3: the RCU API https://lwn.net/Articles/264090/
+| 4. The RCU API, 2010 Edition https://lwn.net/Articles/418853/
+| 2010 Big API Table https://lwn.net/Articles/419086/
+| 5. The RCU API, 2014 Edition https://lwn.net/Articles/609904/
+| 2014 Big API Table https://lwn.net/Articles/609973/
+| 6. The RCU API, 2019 Edition https://lwn.net/Articles/777036/
+| 2019 Big API Table https://lwn.net/Articles/777165/
What is RCU?
@@ -915,13 +917,18 @@ which an RCU reference is held include:
The understanding that RCU provides a reference that only prevents a
change of type is particularly visible with objects allocated from a
slab cache marked ``SLAB_TYPESAFE_BY_RCU``. RCU operations may yield a
-reference to an object from such a cache that has been concurrently
-freed and the memory reallocated to a completely different object,
-though of the same type. In this case RCU doesn't even protect the
-identity of the object from changing, only its type. So the object
-found may not be the one expected, but it will be one where it is safe
-to take a reference or spinlock and then confirm that the identity
-matches the expectations.
+reference to an object from such a cache that has been concurrently freed
+and the memory reallocated to a completely different object, though of
+the same type. In this case RCU doesn't even protect the identity of the
+object from changing, only its type. So the object found may not be the
+one expected, but it will be one where it is safe to take a reference
+(and then potentially acquiring a spinlock), allowing subsequent code
+to check whether the identity matches expectations. It is tempting
+to simply acquire the spinlock without first taking the reference, but
+unfortunately any spinlock in a ``SLAB_TYPESAFE_BY_RCU`` object must be
+initialized after each and every call to kmem_cache_alloc(), which renders
+reference-free spinlock acquisition completely unsafe. Therefore, when
+using ``SLAB_TYPESAFE_BY_RCU``, make proper use of a reference counter.
With traditional reference counting -- such as that implemented by the
kref library in Linux -- there is typically code that runs when the last
@@ -1057,14 +1064,20 @@ SRCU: Initialization/cleanup::
init_srcu_struct
cleanup_srcu_struct
-All: lockdep-checked RCU-protected pointer access::
+All: lockdep-checked RCU utility APIs::
- rcu_access_pointer
- rcu_dereference_raw
RCU_LOCKDEP_WARN
rcu_sleep_check
RCU_NONIDLE
+All: Unchecked RCU-protected pointer access::
+
+ rcu_dereference_raw
+
+All: Unchecked RCU-protected pointer access with dereferencing prohibited::
+
+ rcu_access_pointer
+
See the comment headers in the source code (or the docbook generated
from them) for more information.
diff --git a/Documentation/accounting/delay-accounting.rst b/Documentation/accounting/delay-accounting.rst
index 241d1a87f2cd..7103b62ba6d7 100644
--- a/Documentation/accounting/delay-accounting.rst
+++ b/Documentation/accounting/delay-accounting.rst
@@ -13,7 +13,7 @@ a) waiting for a CPU (while being runnable)
b) completion of synchronous block I/O initiated by the task
c) swapping in pages
d) memory reclaim
-e) thrashing page cache
+e) thrashing
f) direct compact
g) write-protect copy
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index caa3c09a5c3f..9a969c0157f1 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -1,9 +1,9 @@
.. _readme:
-Linux kernel release 5.x <http://kernel.org/>
+Linux kernel release 6.x <http://kernel.org/>
=============================================
-These are the release notes for Linux version 5. Read them carefully,
+These are the release notes for Linux version 6. Read them carefully,
as they tell you what this is all about, explain how to install the
kernel, and what to do if something goes wrong.
@@ -63,7 +63,7 @@ Installing the kernel source
directory where you have permissions (e.g. your home directory) and
unpack it::
- xz -cd linux-5.x.tar.xz | tar xvf -
+ xz -cd linux-6.x.tar.xz | tar xvf -
Replace "X" with the version number of the latest kernel.
@@ -72,12 +72,12 @@ Installing the kernel source
files. They should match the library, and not get messed up by
whatever the kernel-du-jour happens to be.
- - You can also upgrade between 5.x releases by patching. Patches are
+ - You can also upgrade between 6.x releases by patching. Patches are
distributed in the xz format. To install by patching, get all the
newer patch files, enter the top level directory of the kernel source
- (linux-5.x) and execute::
+ (linux-6.x) and execute::
- xz -cd ../patch-5.x.xz | patch -p1
+ xz -cd ../patch-6.x.xz | patch -p1
Replace "x" for all versions bigger than the version "x" of your current
source tree, **in_order**, and you should be ok. You may want to remove
@@ -85,13 +85,13 @@ Installing the kernel source
that there are no failed patches (some-file-name# or some-file-name.rej).
If there are, either you or I have made a mistake.
- Unlike patches for the 5.x kernels, patches for the 5.x.y kernels
+ Unlike patches for the 6.x kernels, patches for the 6.x.y kernels
(also known as the -stable kernels) are not incremental but instead apply
- directly to the base 5.x kernel. For example, if your base kernel is 5.0
- and you want to apply the 5.0.3 patch, you must not first apply the 5.0.1
- and 5.0.2 patches. Similarly, if you are running kernel version 5.0.2 and
- want to jump to 5.0.3, you must first reverse the 5.0.2 patch (that is,
- patch -R) **before** applying the 5.0.3 patch. You can read more on this in
+ directly to the base 6.x kernel. For example, if your base kernel is 6.0
+ and you want to apply the 6.0.3 patch, you must not first apply the 6.0.1
+ and 6.0.2 patches. Similarly, if you are running kernel version 6.0.2 and
+ want to jump to 6.0.3, you must first reverse the 6.0.2 patch (that is,
+ patch -R) **before** applying the 6.0.3 patch. You can read more on this in
:ref:`Documentation/process/applying-patches.rst <applying_patches>`.
Alternatively, the script patch-kernel can be used to automate this
@@ -114,7 +114,7 @@ Installing the kernel source
Software requirements
---------------------
- Compiling and running the 5.x kernels requires up-to-date
+ Compiling and running the 6.x kernels requires up-to-date
versions of various software packages. Consult
:ref:`Documentation/process/changes.rst <changes>` for the minimum version numbers
required and how to get updates for these packages. Beware that using
@@ -132,12 +132,12 @@ Build directory for the kernel
place for the output files (including .config).
Example::
- kernel source code: /usr/src/linux-5.x
+ kernel source code: /usr/src/linux-6.x
build directory: /home/name/build/kernel
To configure and build the kernel, use::
- cd /usr/src/linux-5.x
+ cd /usr/src/linux-6.x
make O=/home/name/build/kernel menuconfig
make O=/home/name/build/kernel
sudo make O=/home/name/build/kernel modules_install install
@@ -262,8 +262,6 @@ Compiling the kernel
- Make sure you have at least gcc 5.1 available.
For more information, refer to :ref:`Documentation/process/changes.rst <changes>`.
- Please note that you can still run a.out user programs with this kernel.
-
- Do a ``make`` to create a compressed kernel image. It is also
possible to do ``make install`` if you have lilo installed to suit the
kernel makefiles, but you may want to check your particular lilo setup first.
@@ -332,85 +330,10 @@ Compiling the kernel
If something goes wrong
-----------------------
- - If you have problems that seem to be due to kernel bugs, please check
- the file MAINTAINERS to see if there is a particular person associated
- with the part of the kernel that you are having trouble with. If there
- isn't anyone listed there, then the second best thing is to mail
- them to me (torvalds@linux-foundation.org), and possibly to any other
- relevant mailing-list or to the newsgroup.
-
- - In all bug-reports, *please* tell what kernel you are talking about,
- how to duplicate the problem, and what your setup is (use your common
- sense). If the problem is new, tell me so, and if the problem is
- old, please try to tell me when you first noticed it.
-
- - If the bug results in a message like::
-
- unable to handle kernel paging request at address C0000010
- Oops: 0002
- EIP: 0010:XXXXXXXX
- eax: xxxxxxxx ebx: xxxxxxxx ecx: xxxxxxxx edx: xxxxxxxx
- esi: xxxxxxxx edi: xxxxxxxx ebp: xxxxxxxx
- ds: xxxx es: xxxx fs: xxxx gs: xxxx
- Pid: xx, process nr: xx
- xx xx xx xx xx xx xx xx xx xx
-
- or similar kernel debugging information on your screen or in your
- system log, please duplicate it *exactly*. The dump may look
- incomprehensible to you, but it does contain information that may
- help debugging the problem. The text above the dump is also
- important: it tells something about why the kernel dumped code (in
- the above example, it's due to a bad kernel pointer). More information
- on making sense of the dump is in Documentation/admin-guide/bug-hunting.rst
-
- - If you compiled the kernel with CONFIG_KALLSYMS you can send the dump
- as is, otherwise you will have to use the ``ksymoops`` program to make
- sense of the dump (but compiling with CONFIG_KALLSYMS is usually preferred).
- This utility can be downloaded from
- https://www.kernel.org/pub/linux/utils/kernel/ksymoops/ .
- Alternatively, you can do the dump lookup by hand:
-
- - In debugging dumps like the above, it helps enormously if you can
- look up what the EIP value means. The hex value as such doesn't help
- me or anybody else very much: it will depend on your particular
- kernel setup. What you should do is take the hex value from the EIP
- line (ignore the ``0010:``), and look it up in the kernel namelist to
- see which kernel function contains the offending address.
-
- To find out the kernel function name, you'll need to find the system
- binary associated with the kernel that exhibited the symptom. This is
- the file 'linux/vmlinux'. To extract the namelist and match it against
- the EIP from the kernel crash, do::
-
- nm vmlinux | sort | less
-
- This will give you a list of kernel addresses sorted in ascending
- order, from which it is simple to find the function that contains the
- offending address. Note that the address given by the kernel
- debugging messages will not necessarily match exactly with the
- function addresses (in fact, that is very unlikely), so you can't
- just 'grep' the list: the list will, however, give you the starting
- point of each kernel function, so by looking for the function that
- has a starting address lower than the one you are searching for but
- is followed by a function with a higher address you will find the one
- you want. In fact, it may be a good idea to include a bit of
- "context" in your problem report, giving a few lines around the
- interesting one.
-
- If you for some reason cannot do the above (you have a pre-compiled
- kernel image or similar), telling me as much about your setup as
- possible will help. Please read
- 'Documentation/admin-guide/reporting-issues.rst' for details.
-
- - Alternatively, you can use gdb on a running kernel. (read-only; i.e. you
- cannot change values or set break points.) To do this, first compile the
- kernel with -g; edit arch/x86/Makefile appropriately, then do a ``make
- clean``. You'll also need to enable CONFIG_PROC_FS (via ``make config``).
-
- After you've rebooted with the new kernel, do ``gdb vmlinux /proc/kcore``.
- You can now use all the usual gdb commands. The command to look up the
- point where your system crashed is ``l *0xXXXXXXXX``. (Replace the XXXes
- with the EIP value.)
-
- gdb'ing a non-running kernel currently fails because ``gdb`` (wrongly)
- disregards the starting offset for which the kernel is compiled.
+If you have problems that seem to be due to kernel bugs, please follow the
+instructions at 'Documentation/admin-guide/reporting-issues.rst'.
+
+Hints on understanding kernel bug reports are in
+'Documentation/admin-guide/bug-hunting.rst'. More on debugging the kernel
+with gdb is in 'Documentation/dev-tools/gdb-kernel-debugging.rst' and
+'Documentation/dev-tools/kgdb.rst'.
diff --git a/Documentation/admin-guide/acpi/dsdt-override.rst b/Documentation/admin-guide/acpi/dsdt-override.rst
deleted file mode 100644
index 50bd7f194bf4..000000000000
--- a/Documentation/admin-guide/acpi/dsdt-override.rst
+++ /dev/null
@@ -1,13 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-===============
-Overriding DSDT
-===============
-
-Linux supports a method of overriding the BIOS DSDT:
-
-CONFIG_ACPI_CUSTOM_DSDT - builds the image into the kernel.
-
-When to use this method is described in detail on the
-Linux/ACPI home page:
-https://01.org/linux-acpi/documentation/overriding-dsdt
diff --git a/Documentation/admin-guide/cgroup-v1/memcg_test.rst b/Documentation/admin-guide/cgroup-v1/memcg_test.rst
index 45b94f7b3beb..a402359abb99 100644
--- a/Documentation/admin-guide/cgroup-v1/memcg_test.rst
+++ b/Documentation/admin-guide/cgroup-v1/memcg_test.rst
@@ -97,7 +97,7 @@ Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y.
=============
Page Cache is charged at
- - add_to_page_cache_locked().
+ - filemap_add_folio().
The logic is very clear. (About migration, see below)
diff --git a/Documentation/admin-guide/cgroup-v1/memory.rst b/Documentation/admin-guide/cgroup-v1/memory.rst
index 2cc502a75ef6..5b86245450bd 100644
--- a/Documentation/admin-guide/cgroup-v1/memory.rst
+++ b/Documentation/admin-guide/cgroup-v1/memory.rst
@@ -299,7 +299,7 @@ Per-node-per-memcgroup LRU (cgroup's private LRU) is guarded by
lruvec->lru_lock; PG_lru bit of page->flags is cleared before
isolating a page from its LRU under lruvec->lru_lock.
-2.7 Kernel Memory Extension (CONFIG_MEMCG_KMEM)
+2.7 Kernel Memory Extension
-----------------------------------------------
With the Kernel memory extension, the Memory Controller is able to limit
@@ -386,8 +386,6 @@ U != 0, K >= U:
a. Enable CONFIG_CGROUPS
b. Enable CONFIG_MEMCG
-c. Enable CONFIG_MEMCG_SWAP (to use swap extension)
-d. Enable CONFIG_MEMCG_KMEM (to use kmem extension)
3.1. Prepare the cgroups (see cgroups.txt, Why are cgroups needed?)
-------------------------------------------------------------------
diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst
index 176298f2f4de..7bcfb38498c6 100644
--- a/Documentation/admin-guide/cgroup-v2.rst
+++ b/Documentation/admin-guide/cgroup-v2.rst
@@ -184,6 +184,14 @@ cgroup v2 currently supports the following mount options.
ignored on non-init namespace mounts. Please refer to the
Delegation section for details.
+ favordynmods
+ Reduce the latencies of dynamic cgroup modifications such as
+ task migrations and controller on/offs at the cost of making
+ hot path operations such as forks and exits more expensive.
+ The static usage pattern of creating a cgroup, enabling
+ controllers, and then seeding it with CLONE_INTO_CGROUP is
+ not affected by this option.
+
memory_localevents
Only populate memory.events with data for the current cgroup,
and not any subtrees. This is legacy behaviour, the default
@@ -1229,6 +1237,13 @@ PAGE_SIZE multiple when read back.
the target cgroup. If less bytes are reclaimed than the
specified amount, -EAGAIN is returned.
+ Please note that the proactive reclaim (triggered by this
+ interface) is not meant to indicate memory pressure on the
+ memory cgroup. Therefore socket memory balancing triggered by
+ the memory reclaim normally is not exercised in this case.
+ This means that the networking layer will not adapt based on
+ reclaim induced by memory.reclaim.
+
memory.peak
A read-only single value file which exists on non-root
cgroups.
@@ -1340,6 +1355,11 @@ PAGE_SIZE multiple when read back.
pagetables
Amount of memory allocated for page tables.
+ sec_pagetables
+ Amount of memory allocated for secondary page tables,
+ this currently includes KVM mmu allocations on x86
+ and arm64.
+
percpu (npn)
Amount of memory used for storing per-cpu kernel
data structures.
@@ -1433,6 +1453,24 @@ PAGE_SIZE multiple when read back.
workingset_nodereclaim
Number of times a shadow node has been reclaimed
+ pgscan (npn)
+ Amount of scanned pages (in an inactive LRU list)
+
+ pgsteal (npn)
+ Amount of reclaimed pages
+
+ pgscan_kswapd (npn)
+ Amount of scanned pages by kswapd (in an inactive LRU list)
+
+ pgscan_direct (npn)
+ Amount of scanned pages directly (in an inactive LRU list)
+
+ pgsteal_kswapd (npn)
+ Amount of reclaimed pages by kswapd
+
+ pgsteal_direct (npn)
+ Amount of reclaimed pages directly
+
pgfault (npn)
Total number of page faults incurred
@@ -1442,12 +1480,6 @@ PAGE_SIZE multiple when read back.
pgrefill (npn)
Amount of scanned pages (in an active LRU list)
- pgscan (npn)
- Amount of scanned pages (in an inactive LRU list)
-
- pgsteal (npn)
- Amount of reclaimed pages
-
pgactivate (npn)
Amount of pages moved to the active LRU list
@@ -2158,75 +2190,93 @@ Cpuset Interface Files
It accepts only the following input values when written to.
- ======== ================================
- "root" a partition root
- "member" a non-root member of a partition
- ======== ================================
-
- When set to be a partition root, the current cgroup is the
- root of a new partition or scheduling domain that comprises
- itself and all its descendants except those that are separate
- partition roots themselves and their descendants. The root
- cgroup is always a partition root.
-
- There are constraints on where a partition root can be set.
- It can only be set in a cgroup if all the following conditions
- are true.
-
- 1) The "cpuset.cpus" is not empty and the list of CPUs are
- exclusive, i.e. they are not shared by any of its siblings.
- 2) The parent cgroup is a partition root.
- 3) The "cpuset.cpus" is also a proper subset of the parent's
- "cpuset.cpus.effective".
- 4) There is no child cgroups with cpuset enabled. This is for
- eliminating corner cases that have to be handled if such a
- condition is allowed.
-
- Setting it to partition root will take the CPUs away from the
- effective CPUs of the parent cgroup. Once it is set, this
- file cannot be reverted back to "member" if there are any child
- cgroups with cpuset enabled.
-
- A parent partition cannot distribute all its CPUs to its
- child partitions. There must be at least one cpu left in the
- parent partition.
-
- Once becoming a partition root, changes to "cpuset.cpus" is
- generally allowed as long as the first condition above is true,
- the change will not take away all the CPUs from the parent
- partition and the new "cpuset.cpus" value is a superset of its
- children's "cpuset.cpus" values.
-
- Sometimes, external factors like changes to ancestors'
- "cpuset.cpus" or cpu hotplug can cause the state of the partition
- root to change. On read, the "cpuset.sched.partition" file
- can show the following values.
-
- ============== ==============================
- "member" Non-root member of a partition
- "root" Partition root
- "root invalid" Invalid partition root
- ============== ==============================
-
- It is a partition root if the first 2 partition root conditions
- above are true and at least one CPU from "cpuset.cpus" is
- granted by the parent cgroup.
-
- A partition root can become invalid if none of CPUs requested
- in "cpuset.cpus" can be granted by the parent cgroup or the
- parent cgroup is no longer a partition root itself. In this
- case, it is not a real partition even though the restriction
- of the first partition root condition above will still apply.
- The cpu affinity of all the tasks in the cgroup will then be
- associated with CPUs in the nearest ancestor partition.
-
- An invalid partition root can be transitioned back to a
- real partition root if at least one of the requested CPUs
- can now be granted by its parent. In this case, the cpu
- affinity of all the tasks in the formerly invalid partition
- will be associated to the CPUs of the newly formed partition.
- Changing the partition state of an invalid partition root to
- "member" is always allowed even if child cpusets are present.
+ ========== =====================================
+ "member" Non-root member of a partition
+ "root" Partition root
+ "isolated" Partition root without load balancing
+ ========== =====================================
+
+ The root cgroup is always a partition root and its state
+ cannot be changed. All other non-root cgroups start out as
+ "member".
+
+ When set to "root", the current cgroup is the root of a new
+ partition or scheduling domain that comprises itself and all
+ its descendants except those that are separate partition roots
+ themselves and their descendants.
+
+ When set to "isolated", the CPUs in that partition root will
+ be in an isolated state without any load balancing from the
+ scheduler. Tasks placed in such a partition with multiple
+ CPUs should be carefully distributed and bound to each of the
+ individual CPUs for optimal performance.
+
+ The value shown in "cpuset.cpus.effective" of a partition root
+ is the CPUs that the partition root can dedicate to a potential
+ new child partition root. The new child subtracts available
+ CPUs from its parent "cpuset.cpus.effective".
+
+ A partition root ("root" or "isolated") can be in one of the
+ two possible states - valid or invalid. An invalid partition
+ root is in a degraded state where some state information may
+ be retained, but behaves more like a "member".
+
+ All possible state transitions among "member", "root" and
+ "isolated" are allowed.
+
+ On read, the "cpuset.cpus.partition" file can show the following
+ values.
+
+ ============================= =====================================
+ "member" Non-root member of a partition
+ "root" Partition root
+ "isolated" Partition root without load balancing
+ "root invalid (<reason>)" Invalid partition root
+ "isolated invalid (<reason>)" Invalid isolated partition root
+ ============================= =====================================
+
+ In the case of an invalid partition root, a descriptive string on
+ why the partition is invalid is included within parentheses.
+
+ For a partition root to become valid, the following conditions
+ must be met.
+
+ 1) The "cpuset.cpus" is exclusive with its siblings , i.e. they
+ are not shared by any of its siblings (exclusivity rule).
+ 2) The parent cgroup is a valid partition root.
+ 3) The "cpuset.cpus" is not empty and must contain at least
+ one of the CPUs from parent's "cpuset.cpus", i.e. they overlap.
+ 4) The "cpuset.cpus.effective" cannot be empty unless there is
+ no task associated with this partition.
+
+ External events like hotplug or changes to "cpuset.cpus" can
+ cause a valid partition root to become invalid and vice versa.
+ Note that a task cannot be moved to a cgroup with empty
+ "cpuset.cpus.effective".
+
+ For a valid partition root with the sibling cpu exclusivity
+ rule enabled, changes made to "cpuset.cpus" that violate the
+ exclusivity rule will invalidate the partition as well as its
+ sibiling partitions with conflicting cpuset.cpus values. So
+ care must be taking in changing "cpuset.cpus".
+
+ A valid non-root parent partition may distribute out all its CPUs
+ to its child partitions when there is no task associated with it.
+
+ Care must be taken to change a valid partition root to
+ "member" as all its child partitions, if present, will become
+ invalid causing disruption to tasks running in those child
+ partitions. These inactivated partitions could be recovered if
+ their parent is switched back to a partition root with a proper
+ set of "cpuset.cpus".
+
+ Poll and inotify events are triggered whenever the state of
+ "cpuset.cpus.partition" changes. That includes changes caused
+ by write to "cpuset.cpus.partition", cpu hotplug or other
+ changes that modify the validity status of the partition.
+ This will allow user space agents to monitor unexpected changes
+ to "cpuset.cpus.partition" without the need to do continuous
+ polling.
Device controller
diff --git a/Documentation/admin-guide/device-mapper/writecache.rst b/Documentation/admin-guide/device-mapper/writecache.rst
index 10429779a91a..60c16b7fd5ac 100644
--- a/Documentation/admin-guide/device-mapper/writecache.rst
+++ b/Documentation/admin-guide/device-mapper/writecache.rst
@@ -20,6 +20,7 @@ Constructor parameters:
size)
5. the number of optional parameters (the parameters with an argument
count as two)
+
start_sector n (default: 0)
offset from the start of cache device in 512-byte sectors
high_watermark n (default: 50)
@@ -74,20 +75,21 @@ Constructor parameters:
the origin volume in the last n milliseconds
Status:
+
1. error indicator - 0 if there was no error, otherwise error number
2. the number of blocks
3. the number of free blocks
4. the number of blocks under writeback
-5. the number of read requests
-6. the number of read requests that hit the cache
-7. the number of write requests
-8. the number of write requests that hit uncommitted block
-9. the number of write requests that hit committed block
-10. the number of write requests that bypass the cache
-11. the number of write requests that are allocated in the cache
+5. the number of read blocks
+6. the number of read blocks that hit the cache
+7. the number of write blocks
+8. the number of write blocks that hit uncommitted block
+9. the number of write blocks that hit committed block
+10. the number of write blocks that bypass the cache
+11. the number of write blocks that are allocated in the cache
12. the number of write requests that are blocked on the freelist
13. the number of flush requests
-14. the number of discard requests
+14. the number of discarded blocks
Messages:
flush
diff --git a/Documentation/admin-guide/devices.rst b/Documentation/admin-guide/devices.rst
index 035275fedbdd..e3776d77374b 100644
--- a/Documentation/admin-guide/devices.rst
+++ b/Documentation/admin-guide/devices.rst
@@ -7,10 +7,9 @@ This list is the Linux Device List, the official registry of allocated
device numbers and ``/dev`` directory nodes for the Linux operating
system.
-The LaTeX version of this document is no longer maintained, nor is
-the document that used to reside at lanana.org. This version in the
-mainline Linux kernel is the master document. Updates shall be sent
-as patches to the kernel maintainers (see the
+The version of this document at lanana.org is no longer maintained. This
+version in the mainline Linux kernel is the master document. Updates
+shall be sent as patches to the kernel maintainers (see the
:ref:`Documentation/process/submitting-patches.rst <submittingpatches>` document).
Specifically explore the sections titled "CHAR and MISC DRIVERS", and
"BLOCK LAYER" in the MAINTAINERS file to find the right maintainers
diff --git a/Documentation/admin-guide/dynamic-debug-howto.rst b/Documentation/admin-guide/dynamic-debug-howto.rst
index a89cfa083155..faa22f77847a 100644
--- a/Documentation/admin-guide/dynamic-debug-howto.rst
+++ b/Documentation/admin-guide/dynamic-debug-howto.rst
@@ -5,143 +5,115 @@ Dynamic debug
Introduction
============
-This document describes how to use the dynamic debug (dyndbg) feature.
+Dynamic debug allows you to dynamically enable/disable kernel
+debug-print code to obtain additional kernel information.
-Dynamic debug is designed to allow you to dynamically enable/disable
-kernel code to obtain additional kernel information. Currently, if
-``CONFIG_DYNAMIC_DEBUG`` is set, then all ``pr_debug()``/``dev_dbg()`` and
-``print_hex_dump_debug()``/``print_hex_dump_bytes()`` calls can be dynamically
-enabled per-callsite.
+If ``/proc/dynamic_debug/control`` exists, your kernel has dynamic
+debug. You'll need root access (sudo su) to use this.
-If you do not want to enable dynamic debug globally (i.e. in some embedded
-system), you may set ``CONFIG_DYNAMIC_DEBUG_CORE`` as basic support of dynamic
-debug and add ``ccflags := -DDYNAMIC_DEBUG_MODULE`` into the Makefile of any
-modules which you'd like to dynamically debug later.
-
-If ``CONFIG_DYNAMIC_DEBUG`` is not set, ``print_hex_dump_debug()`` is just
-shortcut for ``print_hex_dump(KERN_DEBUG)``.
-
-For ``print_hex_dump_debug()``/``print_hex_dump_bytes()``, format string is
-its ``prefix_str`` argument, if it is constant string; or ``hexdump``
-in case ``prefix_str`` is built dynamically.
+Dynamic debug provides:
-Dynamic debug has even more useful features:
+ * a Catalog of all *prdbgs* in your kernel.
+ ``cat /proc/dynamic_debug/control`` to see them.
- * Simple query language allows turning on and off debugging
- statements by matching any combination of 0 or 1 of:
+ * a Simple query/command language to alter *prdbgs* by selecting on
+ any combination of 0 or 1 of:
- source filename
- function name
- line number (including ranges of line numbers)
- module name
- format string
-
- * Provides a debugfs control file: ``<debugfs>/dynamic_debug/control``
- which can be read to display the complete list of known debug
- statements, to help guide you
-
-Controlling dynamic debug Behaviour
-===================================
-
-The behaviour of ``pr_debug()``/``dev_dbg()`` are controlled via writing to a
-control file in the 'debugfs' filesystem. Thus, you must first mount
-the debugfs filesystem, in order to make use of this feature.
-Subsequently, we refer to the control file as:
-``<debugfs>/dynamic_debug/control``. For example, if you want to enable
-printing from source file ``svcsock.c``, line 1603 you simply do::
-
- nullarbor:~ # echo 'file svcsock.c line 1603 +p' >
- <debugfs>/dynamic_debug/control
-
-If you make a mistake with the syntax, the write will fail thus::
-
- nullarbor:~ # echo 'file svcsock.c wtf 1 +p' >
- <debugfs>/dynamic_debug/control
- -bash: echo: write error: Invalid argument
-
-Note, for systems without 'debugfs' enabled, the control file can be
-found in ``/proc/dynamic_debug/control``.
+ - class name (as known/declared by each module)
Viewing Dynamic Debug Behaviour
===============================
-You can view the currently configured behaviour of all the debug
-statements via::
+You can view the currently configured behaviour in the *prdbg* catalog::
- nullarbor:~ # cat <debugfs>/dynamic_debug/control
+ :#> head -n7 /proc/dynamic_debug/control
# filename:lineno [module]function flags format
- net/sunrpc/svc_rdma.c:323 [svcxprt_rdma]svc_rdma_cleanup =_ "SVCRDMA Module Removed, deregister RPC RDMA transport\012"
- net/sunrpc/svc_rdma.c:341 [svcxprt_rdma]svc_rdma_init =_ "\011max_inline : %d\012"
- net/sunrpc/svc_rdma.c:340 [svcxprt_rdma]svc_rdma_init =_ "\011sq_depth : %d\012"
- net/sunrpc/svc_rdma.c:338 [svcxprt_rdma]svc_rdma_init =_ "\011max_requests : %d\012"
- ...
+ init/main.c:1179 [main]initcall_blacklist =_ "blacklisting initcall %s\012
+ init/main.c:1218 [main]initcall_blacklisted =_ "initcall %s blacklisted\012"
+ init/main.c:1424 [main]run_init_process =_ " with arguments:\012"
+ init/main.c:1426 [main]run_init_process =_ " %s\012"
+ init/main.c:1427 [main]run_init_process =_ " with environment:\012"
+ init/main.c:1429 [main]run_init_process =_ " %s\012"
+The 3rd space-delimited column shows the current flags, preceded by
+a ``=`` for easy use with grep/cut. ``=p`` shows enabled callsites.
-You can also apply standard Unix text manipulation filters to this
-data, e.g.::
+Controlling dynamic debug Behaviour
+===================================
- nullarbor:~ # grep -i rdma <debugfs>/dynamic_debug/control | wc -l
- 62
+The behaviour of *prdbg* sites are controlled by writing
+query/commands to the control file. Example::
- nullarbor:~ # grep -i tcp <debugfs>/dynamic_debug/control | wc -l
- 42
+ # grease the interface
+ :#> alias ddcmd='echo $* > /proc/dynamic_debug/control'
-The third column shows the currently enabled flags for each debug
-statement callsite (see below for definitions of the flags). The
-default value, with no flags enabled, is ``=_``. So you can view all
-the debug statement callsites with any non-default flags::
+ :#> ddcmd '-p; module main func run* +p'
+ :#> grep =p /proc/dynamic_debug/control
+ init/main.c:1424 [main]run_init_process =p " with arguments:\012"
+ init/main.c:1426 [main]run_init_process =p " %s\012"
+ init/main.c:1427 [main]run_init_process =p " with environment:\012"
+ init/main.c:1429 [main]run_init_process =p " %s\012"
- nullarbor:~ # awk '$3 != "=_"' <debugfs>/dynamic_debug/control
- # filename:lineno [module]function flags format
- net/sunrpc/svcsock.c:1603 [sunrpc]svc_send p "svc_process: st_sendto returned %d\012"
+Error messages go to console/syslog::
+
+ :#> ddcmd mode foo +p
+ dyndbg: unknown keyword "mode"
+ dyndbg: query parse failed
+ bash: echo: write error: Invalid argument
+
+If debugfs is also enabled and mounted, ``dynamic_debug/control`` is
+also under the mount-dir, typically ``/sys/kernel/debug/``.
Command Language Reference
==========================
-At the lexical level, a command comprises a sequence of words separated
+At the basic lexical level, a command is a sequence of words separated
by spaces or tabs. So these are all equivalent::
- nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
- <debugfs>/dynamic_debug/control
- nullarbor:~ # echo -n ' file svcsock.c line 1603 +p ' >
- <debugfs>/dynamic_debug/control
- nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd file svcsock.c line 1603 +p
+ :#> ddcmd "file svcsock.c line 1603 +p"
+ :#> ddcmd ' file svcsock.c line 1603 +p '
Command submissions are bounded by a write() system call.
Multiple commands can be written together, separated by ``;`` or ``\n``::
- ~# echo "func pnpacpi_get_resources +p; func pnp_assign_mem +p" \
- > <debugfs>/dynamic_debug/control
+ :#> ddcmd "func pnpacpi_get_resources +p; func pnp_assign_mem +p"
+ :#> ddcmd <<"EOC"
+ func pnpacpi_get_resources +p
+ func pnp_assign_mem +p
+ EOC
+ :#> cat query-batch-file > /proc/dynamic_debug/control
-If your query set is big, you can batch them too::
+You can also use wildcards in each query term. The match rule supports
+``*`` (matches zero or more characters) and ``?`` (matches exactly one
+character). For example, you can match all usb drivers::
- ~# cat query-batch-file > <debugfs>/dynamic_debug/control
+ :#> ddcmd file "drivers/usb/*" +p # "" to suppress shell expansion
-Another way is to use wildcards. The match rule supports ``*`` (matches
-zero or more characters) and ``?`` (matches exactly one character). For
-example, you can match all usb drivers::
-
- ~# echo "file drivers/usb/* +p" > <debugfs>/dynamic_debug/control
-
-At the syntactical level, a command comprises a sequence of match
-specifications, followed by a flags change specification::
+Syntactically, a command is pairs of keyword values, followed by a
+flags change or setting::
command ::= match-spec* flags-spec
-The match-spec's are used to choose a subset of the known pr_debug()
-callsites to which to apply the flags-spec. Think of them as a query
-with implicit ANDs between each pair. Note that an empty list of
-match-specs will select all debug statement callsites.
+The match-spec's select *prdbgs* from the catalog, upon which to apply
+the flags-spec, all constraints are ANDed together. An absent keyword
+is the same as keyword "*".
+
-A match specification comprises a keyword, which controls the
-attribute of the callsite to be compared, and a value to compare
-against. Possible keywords are:::
+A match specification is a keyword, which selects the attribute of
+the callsite to be compared, and a value to compare against. Possible
+keywords are:::
match-spec ::= 'func' string |
'file' string |
'module' string |
'format' string |
+ 'class' string |
'line' line-range
line-range ::= lineno |
@@ -203,6 +175,16 @@ format
format "nfsd: SETATTR" // a neater way to match a format with whitespace
format 'nfsd: SETATTR' // yet another way to match a format with whitespace
+class
+ The given class_name is validated against each module, which may
+ have declared a list of known class_names. If the class_name is
+ found for a module, callsite & class matching and adjustment
+ proceeds. Examples::
+
+ class DRM_UT_KMS # a DRM.debug category
+ class JUNK # silent non-match
+ // class TLD_* # NOTICE: no wildcard in class names
+
line
The given line number or range of line numbers is compared
against the line number of each ``pr_debug()`` callsite. A single
@@ -228,17 +210,16 @@ of the characters::
The flags are::
p enables the pr_debug() callsite.
- f Include the function name in the printed message
- l Include line number in the printed message
- m Include module name in the printed message
- t Include thread ID in messages not generated from interrupt context
- _ No flags are set. (Or'd with others on input)
+ _ enables no flags.
-For ``print_hex_dump_debug()`` and ``print_hex_dump_bytes()``, only ``p`` flag
-have meaning, other flags ignored.
+ Decorator flags add to the message-prefix, in order:
+ t Include thread ID, or <intr>
+ m Include module name
+ f Include the function name
+ l Include line number
-For display, the flags are preceded by ``=``
-(mnemonic: what the flags are currently equal to).
+For ``print_hex_dump_debug()`` and ``print_hex_dump_bytes()``, only
+the ``p`` flag has meaning, other flags are ignored.
Note the regexp ``^[-+=][flmpt_]+$`` matches a flags specification.
To clear all flags at once, use ``=_`` or ``-flmpt``.
@@ -313,7 +294,7 @@ For ``CONFIG_DYNAMIC_DEBUG`` kernels, any settings given at boot-time (or
enabled by ``-DDEBUG`` flag during compilation) can be disabled later via
the debugfs interface if the debug messages are no longer needed::
- echo "module module_name -p" > <debugfs>/dynamic_debug/control
+ echo "module module_name -p" > /proc/dynamic_debug/control
Examples
========
@@ -321,37 +302,31 @@ Examples
::
// enable the message at line 1603 of file svcsock.c
- nullarbor:~ # echo -n 'file svcsock.c line 1603 +p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd 'file svcsock.c line 1603 +p'
// enable all the messages in file svcsock.c
- nullarbor:~ # echo -n 'file svcsock.c +p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd 'file svcsock.c +p'
// enable all the messages in the NFS server module
- nullarbor:~ # echo -n 'module nfsd +p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd 'module nfsd +p'
// enable all 12 messages in the function svc_process()
- nullarbor:~ # echo -n 'func svc_process +p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd 'func svc_process +p'
// disable all 12 messages in the function svc_process()
- nullarbor:~ # echo -n 'func svc_process -p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd 'func svc_process -p'
// enable messages for NFS calls READ, READLINK, READDIR and READDIR+.
- nullarbor:~ # echo -n 'format "nfsd: READ" +p' >
- <debugfs>/dynamic_debug/control
+ :#> ddcmd 'format "nfsd: READ" +p'
// enable messages in files of which the paths include string "usb"
- nullarbor:~ # echo -n 'file *usb* +p' > <debugfs>/dynamic_debug/control
+ :#> ddcmd 'file *usb* +p' > /proc/dynamic_debug/control
// enable all messages
- nullarbor:~ # echo -n '+p' > <debugfs>/dynamic_debug/control
+ :#> ddcmd '+p' > /proc/dynamic_debug/control
// add module, function to all enabled messages
- nullarbor:~ # echo -n '+mf' > <debugfs>/dynamic_debug/control
+ :#> ddcmd '+mf' > /proc/dynamic_debug/control
// boot-args example, with newlines and comments for readability
Kernel command line: ...
@@ -364,3 +339,38 @@ Examples
dyndbg="file init/* +p #cmt ; func parse_one +p"
// enable pr_debugs in 2 functions in a module loaded later
pc87360.dyndbg="func pc87360_init_device +p; func pc87360_find +p"
+
+Kernel Configuration
+====================
+
+Dynamic Debug is enabled via kernel config items::
+
+ CONFIG_DYNAMIC_DEBUG=y # build catalog, enables CORE
+ CONFIG_DYNAMIC_DEBUG_CORE=y # enable mechanics only, skip catalog
+
+If you do not want to enable dynamic debug globally (i.e. in some embedded
+system), you may set ``CONFIG_DYNAMIC_DEBUG_CORE`` as basic support of dynamic
+debug and add ``ccflags := -DDYNAMIC_DEBUG_MODULE`` into the Makefile of any
+modules which you'd like to dynamically debug later.
+
+
+Kernel *prdbg* API
+==================
+
+The following functions are cataloged and controllable when dynamic
+debug is enabled::
+
+ pr_debug()
+ dev_dbg()
+ print_hex_dump_debug()
+ print_hex_dump_bytes()
+
+Otherwise, they are off by default; ``ccflags += -DDEBUG`` or
+``#define DEBUG`` in a source file will enable them appropriately.
+
+If ``CONFIG_DYNAMIC_DEBUG`` is not set, ``print_hex_dump_debug()`` is
+just a shortcut for ``print_hex_dump(KERN_DEBUG)``.
+
+For ``print_hex_dump_debug()``/``print_hex_dump_bytes()``, format string is
+its ``prefix_str`` argument, if it is constant string; or ``hexdump``
+in case ``prefix_str`` is built dynamically.
diff --git a/Documentation/admin-guide/efi-stub.rst b/Documentation/admin-guide/efi-stub.rst
index 833edb0d0bc4..b24e7c40d832 100644
--- a/Documentation/admin-guide/efi-stub.rst
+++ b/Documentation/admin-guide/efi-stub.rst
@@ -7,10 +7,10 @@ as a PE/COFF image, thereby convincing EFI firmware loaders to load
it as an EFI executable. The code that modifies the bzImage header,
along with the EFI-specific entry point that the firmware loader
jumps to are collectively known as the "EFI boot stub", and live in
-arch/x86/boot/header.S and arch/x86/boot/compressed/eboot.c,
+arch/x86/boot/header.S and drivers/firmware/efi/libstub/x86-stub.c,
respectively. For ARM the EFI stub is implemented in
arch/arm/boot/compressed/efi-header.S and
-arch/arm/boot/compressed/efi-stub.c. EFI stub code that is shared
+drivers/firmware/efi/libstub/arm32-stub.c. EFI stub code that is shared
between architectures is in drivers/firmware/efi/libstub.
For arm64, there is no compressed kernel support, so the Image itself
diff --git a/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst b/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
index 9393c50b5afc..c98fd11907cc 100644
--- a/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
+++ b/Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
@@ -230,6 +230,20 @@ The possible values in this file are:
* - 'Mitigation: Clear CPU buffers'
- The processor is vulnerable and the CPU buffer clearing mitigation is
enabled.
+ * - 'Unknown: No mitigations'
+ - The processor vulnerability status is unknown because it is
+ out of Servicing period. Mitigation is not attempted.
+
+Definitions:
+------------
+
+Servicing period: The process of providing functional and security updates to
+Intel processors or platforms, utilizing the Intel Platform Update (IPU)
+process or other similar mechanisms.
+
+End of Servicing Updates (ESU): ESU is the date at which Intel will no
+longer provide Servicing, such as through IPU or other similar update
+processes. ESU dates will typically be aligned to end of quarter.
If the processor is vulnerable then the following information is appended to
the above information:
diff --git a/Documentation/admin-guide/hw-vuln/spectre.rst b/Documentation/admin-guide/hw-vuln/spectre.rst
index 9e9556826450..c4dcdb3d0d45 100644
--- a/Documentation/admin-guide/hw-vuln/spectre.rst
+++ b/Documentation/admin-guide/hw-vuln/spectre.rst
@@ -422,6 +422,14 @@ The possible values in this file are:
'RSB filling' Protection of RSB on context switch enabled
============= ===========================================
+ - EIBRS Post-barrier Return Stack Buffer (PBRSB) protection status:
+
+ =========================== =======================================================
+ 'PBRSB-eIBRS: SW sequence' CPU is affected and protection of RSB on VMEXIT enabled
+ 'PBRSB-eIBRS: Vulnerable' CPU is vulnerable
+ 'PBRSB-eIBRS: Not affected' CPU is not affected by PBRSB
+ =========================== =======================================================
+
Full mitigation might require a microcode update from the CPU
vendor. When the necessary microcode is not available, the kernel will
report vulnerability.
@@ -605,6 +613,7 @@ kernel command line.
eibrs enhanced IBRS
eibrs,retpoline enhanced IBRS + Retpolines
eibrs,lfence enhanced IBRS + LFENCE
+ ibrs use IBRS to protect kernel
Not specifying this option is equivalent to
spectre_v2=auto.
diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst
index 8419019b6a88..6726f439958c 100644
--- a/Documentation/admin-guide/kdump/vmcoreinfo.rst
+++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst
@@ -200,7 +200,7 @@ prb
A pointer to the printk ringbuffer (struct printk_ringbuffer). This
may be pointing to the static boot ringbuffer or the dynamically
-allocated ringbuffer, depending on when the the core dump occurred.
+allocated ringbuffer, depending on when the core dump occurred.
Used by user-space tools to read the active kernel log buffer.
printk_rb_static
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f2d26cb7e853..69b1533c1f02 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -321,6 +321,8 @@
force_enable - Force enable the IOMMU on platforms known
to be buggy with IOMMU enabled. Use this
option with care.
+ pgtbl_v1 - Use v1 page table for DMA-API (Default).
+ pgtbl_v2 - Use v2 page table for DMA-API.
amd_iommu_dump= [HW,X86-64]
Enable AMD IOMMU driver option to dump the ACPI table
@@ -400,6 +402,12 @@
arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension
support
+ arm64.nosve [ARM64] Unconditionally disable Scalable Vector
+ Extension support
+
+ arm64.nosme [ARM64] Unconditionally disable Scalable Matrix
+ Extension support
+
ataflop= [HW,M68k]
atarimouse= [HW,MOUSE] Atari Mouse
@@ -550,7 +558,7 @@
nosocket -- Disable socket memory accounting.
nokmem -- Disable kernel memory accounting.
- checkreqprot [SELINUX] Set initial checkreqprot flag value.
+ checkreqprot= [SELINUX] Set initial checkreqprot flag value.
Format: { "0" | "1" }
See security/selinux/Kconfig help text.
0 -- check protection applied by kernel (includes
@@ -960,10 +968,6 @@
debugpat [X86] Enable PAT debugging
- decnet.addr= [HW,NET]
- Format: <area>[,<node>]
- See also Documentation/networking/decnet.rst.
-
default_hugepagesz=
[HW] The size of the default HugeTLB page. This is
the size represented by the legacy /proc/ hugepages
@@ -1152,8 +1156,12 @@
nopku [X86] Disable Memory Protection Keys CPU feature found
in some Intel CPUs.
- <module>.async_probe [KNL]
- Enable asynchronous probe on this module.
+ <module>.async_probe[=<bool>] [KNL]
+ If no <bool> value is specified or if the value
+ specified is not a valid <bool>, enable asynchronous
+ probe on this module. Otherwise, enable/disable
+ asynchronous probe on this module as indicated by the
+ <bool> value. See also: module.async_probe
early_ioremap_debug [KNL]
Enable debug messages in early_ioremap support. This
@@ -1439,7 +1447,7 @@
(in particular on some ATI chipsets).
The kernel tries to set a reasonable default.
- enforcing [SELINUX] Set initial enforcing status.
+ enforcing= [SELINUX] Set initial enforcing status.
Format: {"0" | "1"}
See security/selinux/Kconfig help text.
0 -- permissive (log only, no denials).
@@ -1461,6 +1469,14 @@
Permit 'security.evm' to be updated regardless of
current integrity status.
+ early_page_ext [KNL] Enforces page_ext initialization to earlier
+ stages so cover more early boot allocations.
+ Please note that as side effect some optimizations
+ might be disabled to achieve that (e.g. parallelized
+ memory initialization is disabled) so the boot process
+ might take longer, especially on systems with a lot of
+ memory. Available with CONFIG_PAGE_EXTENSION=y.
+
failslab=
fail_usercopy=
fail_page_alloc=
@@ -1667,6 +1683,19 @@
hlt [BUGS=ARM,SH]
+ hostname= [KNL] Set the hostname (aka UTS nodename).
+ Format: <string>
+ This allows setting the system's hostname during early
+ startup. This sets the name returned by gethostname.
+ Using this parameter to set the hostname makes it
+ possible to ensure the hostname is correctly set before
+ any userspace processes run, avoiding the possibility
+ that a process may call gethostname before the hostname
+ has been explicitly set, resulting in the calling
+ process getting an incorrect result. The string must
+ not exceed the maximum allowed hostname length (usually
+ 64 characters) and will be truncated otherwise.
+
hpet= [X86-32,HPET] option to control HPET usage
Format: { enable (default) | disable | force |
verbose }
@@ -1712,19 +1741,22 @@
hugetlb_free_vmemmap=
[KNL] Reguires CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
enabled.
+ Control if HugeTLB Vmemmap Optimization (HVO) is enabled.
Allows heavy hugetlb users to free up some more
memory (7 * PAGE_SIZE for each 2MB hugetlb page).
- Format: { [oO][Nn]/Y/y/1 | [oO][Ff]/N/n/0 (default) }
+ Format: { on | off (default) }
- [oO][Nn]/Y/y/1: enable the feature
- [oO][Ff]/N/n/0: disable the feature
+ on: enable HVO
+ off: disable HVO
Built with CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON=y,
the default is on.
- This is not compatible with memory_hotplug.memmap_on_memory.
- If both parameters are enabled, hugetlb_free_vmemmap takes
- precedence over memory_hotplug.memmap_on_memory.
+ Note that the vmemmap pages may be allocated from the added
+ memory block itself when memory_hotplug.memmap_on_memory is
+ enabled, those vmemmap pages cannot be optimized even if this
+ feature is enabled. Other vmemmap pages not allocated from
+ the added memory block itself do not be affected.
hung_task_panic=
[KNL] Should the hung task detector generate panics.
@@ -2266,23 +2298,39 @@
ivrs_ioapic [HW,X86-64]
Provide an override to the IOAPIC-ID<->DEVICE-ID
- mapping provided in the IVRS ACPI table. For
- example, to map IOAPIC-ID decimal 10 to
- PCI device 00:14.0 write the parameter as:
+ mapping provided in the IVRS ACPI table.
+ By default, PCI segment is 0, and can be omitted.
+ For example:
+ * To map IOAPIC-ID decimal 10 to PCI device 00:14.0
+ write the parameter as:
ivrs_ioapic[10]=00:14.0
+ * To map IOAPIC-ID decimal 10 to PCI segment 0x1 and
+ PCI device 00:14.0 write the parameter as:
+ ivrs_ioapic[10]=0001:00:14.0
ivrs_hpet [HW,X86-64]
Provide an override to the HPET-ID<->DEVICE-ID
- mapping provided in the IVRS ACPI table. For
- example, to map HPET-ID decimal 0 to
- PCI device 00:14.0 write the parameter as:
+ mapping provided in the IVRS ACPI table.
+ By default, PCI segment is 0, and can be omitted.
+ For example:
+ * To map HPET-ID decimal 0 to PCI device 00:14.0
+ write the parameter as:
ivrs_hpet[0]=00:14.0
+ * To map HPET-ID decimal 10 to PCI segment 0x1 and
+ PCI device 00:14.0 write the parameter as:
+ ivrs_ioapic[10]=0001:00:14.0
ivrs_acpihid [HW,X86-64]
Provide an override to the ACPI-HID:UID<->DEVICE-ID
- mapping provided in the IVRS ACPI table. For
- example, to map UART-HID:UID AMD0020:0 to
- PCI device 00:14.5 write the parameter as:
+ mapping provided in the IVRS ACPI table.
+
+ For example, to map UART-HID:UID AMD0020:0 to
+ PCI segment 0x1 and PCI device ID 00:14.5,
+ write the parameter as:
+ ivrs_acpihid[0001:00:14.5]=AMD0020:0
+
+ By default, PCI segment is 0, and can be omitted.
+ For example, PCI device 00:14.5 write the parameter as:
ivrs_acpihid[00:14.5]=AMD0020:0
js= [HW,JOY] Analog joystick
@@ -2394,6 +2442,12 @@
0: force disabled
1: force enabled
+ kunit.enable= [KUNIT] Enable executing KUnit tests. Requires
+ CONFIG_KUNIT to be set to be fully enabled. The
+ default value can be overridden via
+ KUNIT_DEFAULT_ENABLED.
+ Default is 1 (enabled)
+
kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
Default is 0 (don't ignore, but inject #GP)
@@ -2418,8 +2472,7 @@
the KVM_CLEAR_DIRTY ioctl, and only for the pages being
cleared.
- Eager page splitting currently only supports splitting
- huge pages mapped by the TDP MMU.
+ Eager page splitting is only supported when kvm.tdp_mmu=Y.
Default is Y (on).
@@ -3068,10 +3121,12 @@
[KNL,X86,ARM] Boolean flag to enable this feature.
Format: {on | off (default)}
When enabled, runtime hotplugged memory will
- allocate its internal metadata (struct pages)
- from the hotadded memory which will allow to
- hotadd a lot of memory without requiring
- additional memory to do so.
+ allocate its internal metadata (struct pages,
+ those vmemmap pages cannot be optimized even
+ if hugetlb_free_vmemmap is enabled) from the
+ hotadded memory which will allow to hotadd a
+ lot of memory without requiring additional
+ memory to do so.
This feature is disabled by default because it
has some implication on large (e.g. GB)
allocations in some configurations (e.g. small
@@ -3081,10 +3136,6 @@
Note that even when enabled, there are a few cases where
the feature is not effective.
- This is not compatible with hugetlb_free_vmemmap. If
- both parameters are enabled, hugetlb_free_vmemmap takes
- precedence over memory_hotplug.memmap_on_memory.
-
memtest= [KNL,X86,ARM,M68K,PPC,RISCV] Enable memtest
Format: <integer>
default : 0 <disable>
@@ -3103,7 +3154,7 @@
mem_encrypt=on: Activate SME
mem_encrypt=off: Do not activate SME
- Refer to Documentation/virt/kvm/amd-memory-encryption.rst
+ Refer to Documentation/virt/kvm/x86/amd-memory-encryption.rst
for details on when memory encryption can be activated.
mem_sleep_default= [SUSPEND] Default system suspend mode:
@@ -3161,13 +3212,14 @@
improves system performance, but it may also
expose users to several CPU vulnerabilities.
Equivalent to: nopti [X86,PPC]
- kpti=0 [ARM64]
+ if nokaslr then kpti=0 [ARM64]
nospectre_v1 [X86,PPC]
nobp=0 [S390]
nospectre_v2 [X86,PPC,S390,ARM64]
spectre_v2_user=off [X86]
spec_store_bypass_disable=off [X86,PPC]
ssbd=force-off [ARM64]
+ nospectre_bhb [ARM64]
l1tf=off [X86]
mds=off [X86]
tsx_async_abort=off [X86]
@@ -3176,6 +3228,7 @@
no_entry_flush [PPC]
no_uaccess_flush [PPC]
mmio_stale_data=off [X86]
+ retbleed=off [X86]
Exceptions:
This does not have any effect on
@@ -3198,6 +3251,7 @@
mds=full,nosmt [X86]
tsx_async_abort=full,nosmt [X86]
mmio_stale_data=full,nosmt [X86]
+ retbleed=auto,nosmt [X86]
mminit_loglevel=
[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
@@ -3241,6 +3295,15 @@
For details see:
Documentation/admin-guide/hw-vuln/processor_mmio_stale_data.rst
+ module.async_probe=<bool>
+ [KNL] When set to true, modules will use async probing
+ by default. To enable/disable async probing for a
+ specific module, use the module specific control that
+ is documented under <module>.async_probe. When both
+ module.async_probe and <module>.async_probe are
+ specified, <module>.async_probe takes precedence for
+ the specific module.
+
module.sig_enforce
[KNL] When CONFIG_MODULE_SIG is set, this means that
modules without (valid) signatures will fail to load.
@@ -3530,9 +3593,6 @@
noautogroup Disable scheduler automatic task group creation.
- nobats [PPC] Do not use BATs for mapping kernel lowmem
- on "Classic" PPC cores.
-
nocache [ARM]
nodsp [SH] Disable hardware DSP at boot time.
@@ -3566,7 +3626,7 @@
nohugeiomap [KNL,X86,PPC,ARM64] Disable kernel huge I/O mappings.
- nohugevmalloc [PPC] Disable kernel huge vmalloc mappings.
+ nohugevmalloc [KNL,X86,PPC,ARM64] Disable kernel huge vmalloc mappings.
nosmt [KNL,S390] Disable symmetric multithreading (SMT).
Equivalent to smt=1.
@@ -3579,11 +3639,15 @@
(bounds check bypass). With this option data leaks are
possible in the system.
- nospectre_v2 [X86,PPC_FSL_BOOK3E,ARM64] Disable all mitigations for
+ nospectre_v2 [X86,PPC_E500,ARM64] Disable all mitigations for
the Spectre variant 2 (indirect branch prediction)
vulnerability. System may allow data leaks with this
option.
+ nospectre_bhb [ARM64] Disable all mitigations for Spectre-BHB (branch
+ history injection) vulnerability. System may allow data leaks
+ with this option.
+
nospec_store_bypass_disable
[HW] Disable all mitigations for the Speculative Store Bypass vulnerability
@@ -3659,6 +3723,9 @@
just as if they had also been called out in the
rcu_nocbs= boot parameter.
+ Note that this argument takes precedence over
+ the CONFIG_RCU_NOCB_CPU_DEFAULT_ALL option.
+
noiotrap [SH] Disables trapped I/O port accesses.
noirqdebug [X86-32] Disables the code which attempts to detect and
@@ -3691,17 +3758,14 @@
[X86,PV_OPS] Disable paravirtualized VMware scheduler
clock and use the default one.
- no-steal-acc [X86,PV_OPS,ARM64] Disable paravirtualized steal time
- accounting. steal time is computed, but won't
- influence scheduler behaviour
+ no-steal-acc [X86,PV_OPS,ARM64,PPC/PSERIES] Disable paravirtualized
+ steal time accounting. steal time is computed, but
+ won't influence scheduler behaviour
nolapic [X86-32,APIC] Do not enable or use the local APIC.
nolapic_timer [X86-32,APIC] Do not use the local APIC timer.
- noltlbs [PPC] Do not use large page/tlb entries for kernel
- lowmem mapping on PPC40x and PPC8xx
-
nomca [IA-64] Disable machine check abort handling
nomce [X86-32] Disable Machine Check Exception
@@ -3733,11 +3797,6 @@
noreplace-smp [X86-32,SMP] Don't replace SMP instructions
with UP alternatives
- nordrand [X86] Disable kernel use of the RDRAND and
- RDSEED instructions even if they are supported
- by the processor. RDRAND and RDSEED are still
- available to user space applications.
-
noresume [SWSUSP] Disables resume and restores original swap
space.
@@ -3763,6 +3822,10 @@
nox2apic [X86-64,APIC] Do not enable x2APIC mode.
+ NOTE: this parameter will be ignored on systems with the
+ LEGACY_XAPIC_DISABLED bit set in the
+ IA32_XAPIC_DISABLE_STATUS MSR.
+
nps_mtm_hs_ctr= [KNL,ARC]
This parameter sets the maximum duration, in
cycles, each HW thread of the CTOP can run
@@ -4557,6 +4620,9 @@
no-callback mode from boot but the mode may be
toggled at runtime via cpusets.
+ Note that this argument takes precedence over
+ the CONFIG_RCU_NOCB_CPU_DEFAULT_ALL option.
+
rcu_nocb_poll [KNL]
Rather than requiring that offloaded CPUs
(specified by rcu_nocbs= above) explicitly
@@ -4666,6 +4732,34 @@
When RCU_NOCB_CPU is set, also adjust the
priority of NOCB callback kthreads.
+ rcutree.rcu_divisor= [KNL]
+ Set the shift-right count to use to compute
+ the callback-invocation batch limit bl from
+ the number of callbacks queued on this CPU.
+ The result will be bounded below by the value of
+ the rcutree.blimit kernel parameter. Every bl
+ callbacks, the softirq handler will exit in
+ order to allow the CPU to do other work.
+
+ Please note that this callback-invocation batch
+ limit applies only to non-offloaded callback
+ invocation. Offloaded callbacks are instead
+ invoked in the context of an rcuoc kthread, which
+ scheduler will preempt as it does any other task.
+
+ rcutree.nocb_nobypass_lim_per_jiffy= [KNL]
+ On callback-offloaded (rcu_nocbs) CPUs,
+ RCU reduces the lock contention that would
+ otherwise be caused by callback floods through
+ use of the ->nocb_bypass list. However, in the
+ common non-flooded case, RCU queues directly to
+ the main ->cblist in order to avoid the extra
+ overhead of the ->nocb_bypass list and its lock.
+ But if there are too many callbacks queued during
+ a single jiffy, RCU pre-queues the callbacks into
+ the ->nocb_bypass queue. The definition of "too
+ many" is supplied by this kernel boot parameter.
+
rcutree.rcu_nocb_gp_stride= [KNL]
Set the number of NOCB callback kthreads in
each group, which defaults to the square root
@@ -5201,20 +5295,33 @@
Speculative Code Execution with Return Instructions)
vulnerability.
+ AMD-based UNRET and IBPB mitigations alone do not stop
+ sibling threads from influencing the predictions of other
+ sibling threads. For that reason, STIBP is used on pro-
+ cessors that support it, and mitigate SMT on processors
+ that don't.
+
off - no mitigation
auto - automatically select a migitation
auto,nosmt - automatically select a mitigation,
disabling SMT if necessary for
the full mitigation (only on Zen1
and older without STIBP).
- ibpb - mitigate short speculation windows on
- basic block boundaries too. Safe, highest
- perf impact.
- unret - force enable untrained return thunks,
- only effective on AMD f15h-f17h
- based systems.
- unret,nosmt - like unret, will disable SMT when STIBP
- is not available.
+ ibpb - On AMD, mitigate short speculation
+ windows on basic block boundaries too.
+ Safe, highest perf impact. It also
+ enables STIBP if present. Not suitable
+ on Intel.
+ ibpb,nosmt - Like "ibpb" above but will disable SMT
+ when STIBP is not available. This is
+ the alternative for systems which do not
+ have STIBP.
+ unret - Force enable untrained return thunks,
+ only effective on AMD f15h-f17h based
+ systems.
+ unret,nosmt - Like unret, but will disable SMT when STIBP
+ is not available. This is the alternative for
+ systems which do not have STIBP.
Selecting 'auto' will choose a mitigation method at run
time according to the CPU.
@@ -5245,6 +5352,8 @@
rodata= [KNL]
on Mark read-only kernel memory as read-only (default).
off Leave read-only kernel memory writable for debugging.
+ full Mark read-only kernel memory and aliases as read-only
+ [arm64]
rockchip.usb_uart
Enable the uart passthrough on the designated usb port
@@ -5466,7 +5575,7 @@
cache (risks via metadata attacks are mostly
unchanged). Debug options disable merging on their
own.
- For more information see Documentation/vm/slub.rst.
+ For more information see Documentation/mm/slub.rst.
slab_max_order= [MM, SLAB]
Determines the maximum allowed order for slabs.
@@ -5480,13 +5589,13 @@
slub_debug can create guard zones around objects and
may poison objects when not in use. Also tracks the
last alloc / free. For more information see
- Documentation/vm/slub.rst.
+ Documentation/mm/slub.rst.
slub_max_order= [MM, SLUB]
Determines the maximum allowed order for slabs.
A high setting may cause OOMs due to memory
fragmentation. For more information see
- Documentation/vm/slub.rst.
+ Documentation/mm/slub.rst.
slub_min_objects= [MM, SLUB]
The minimum number of objects per slab. SLUB will
@@ -5495,12 +5604,12 @@
the number of objects indicated. The higher the number
of objects the smaller the overhead of tracking slabs
and the less frequently locks need to be acquired.
- For more information see Documentation/vm/slub.rst.
+ For more information see Documentation/mm/slub.rst.
slub_min_order= [MM, SLUB]
Determines the minimum page order for slabs. Must be
lower than slub_max_order.
- For more information see Documentation/vm/slub.rst.
+ For more information see Documentation/mm/slub.rst.
slub_merge [MM, SLUB]
Same with slab_merge.
@@ -5796,6 +5905,24 @@
expediting. Set to zero to disable automatic
expediting.
+ srcutree.srcu_max_nodelay [KNL]
+ Specifies the number of no-delay instances
+ per jiffy for which the SRCU grace period
+ worker thread will be rescheduled with zero
+ delay. Beyond this limit, worker thread will
+ be rescheduled with a sleep delay of one jiffy.
+
+ srcutree.srcu_max_nodelay_phase [KNL]
+ Specifies the per-grace-period phase, number of
+ non-sleeping polls of readers. Beyond this limit,
+ grace period worker thread will be rescheduled
+ with a sleep delay of one jiffy, between each
+ rescan of the readers, for a grace period phase.
+
+ srcutree.srcu_retry_check_delay [KNL]
+ Specifies number of microseconds of non-sleeping
+ delay between each non-sleeping poll of readers.
+
srcutree.small_contention_lim [KNL]
Specifies the number of update-side contention
events per jiffy will be tolerated before
@@ -5922,15 +6049,12 @@
This parameter controls use of the Protected
Execution Facility on pSeries.
- swapaccount= [KNL]
- Format: [0|1]
- Enable accounting of swap in memory resource
- controller if no parameter or 1 is given or disable
- it if 0 is given (See Documentation/admin-guide/cgroup-v1/memory.rst)
-
swiotlb= [ARM,IA-64,PPC,MIPS,X86]
- Format: { <int> | force | noforce }
+ Format: { <int> [,<int>] | force | noforce }
<int> -- Number of I/O TLB slabs
+ <int> -- Second integer after comma. Number of swiotlb
+ areas with their own lock. Will be rounded up
+ to a power of 2.
force -- force using of bounce buffers even if they
wouldn't be automatically used by the kernel
noforce -- Never use bounce buffers (for debugging)
diff --git a/Documentation/admin-guide/media/vimc.dot b/Documentation/admin-guide/media/vimc.dot
index 8e829c164626..92a5bb631235 100644
--- a/Documentation/admin-guide/media/vimc.dot
+++ b/Documentation/admin-guide/media/vimc.dot
@@ -5,9 +5,13 @@ digraph board {
n00000001 [label="{{} | Sensor A\n/dev/v4l-subdev0 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
n00000001:port0 -> n00000005:port0 [style=bold]
n00000001:port0 -> n0000000b [style=bold]
+ n00000001 -> n00000002
+ n00000002 [label="{{} | Lens A\n/dev/v4l-subdev5 | {<port0>}}", shape=Mrecord, style=filled, fillcolor=green]
n00000003 [label="{{} | Sensor B\n/dev/v4l-subdev1 | {<port0> 0}}", shape=Mrecord, style=filled, fillcolor=green]
n00000003:port0 -> n00000008:port0 [style=bold]
n00000003:port0 -> n0000000f [style=bold]
+ n00000003 -> n00000004
+ n00000004 [label="{{} | Lens B\n/dev/v4l-subdev6 | {<port0>}}", shape=Mrecord, style=filled, fillcolor=green]
n00000005 [label="{{<port0> 0} | Debayer A\n/dev/v4l-subdev2 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
n00000005:port1 -> n00000015:port0
n00000008 [label="{{<port0> 0} | Debayer B\n/dev/v4l-subdev3 | {<port1> 1}}", shape=Mrecord, style=filled, fillcolor=green]
diff --git a/Documentation/admin-guide/media/vimc.rst b/Documentation/admin-guide/media/vimc.rst
index 0b07f05dde25..3b4d2b36b4f3 100644
--- a/Documentation/admin-guide/media/vimc.rst
+++ b/Documentation/admin-guide/media/vimc.rst
@@ -53,6 +53,25 @@ vimc-sensor:
* 1 Pad source
+vimc-lens:
+ Ancillary lens for a sensor. Supports auto focus control. Linked to
+ a vimc-sensor using an ancillary link. The lens supports FOCUS_ABSOLUTE
+ control.
+
+.. code-block:: bash
+
+ media-ctl -p
+ ...
+ - entity 28: Lens A (0 pad, 0 link)
+ type V4L2 subdev subtype Lens flags 0
+ device node name /dev/v4l-subdev6
+ - entity 29: Lens B (0 pad, 0 link)
+ type V4L2 subdev subtype Lens flags 0
+ device node name /dev/v4l-subdev7
+ v4l2-ctl -d /dev/v4l-subdev7 -C focus_absolute
+ focus_absolute: 0
+
+
vimc-debayer:
Transforms images in bayer format into a non-bayer format.
Exposes:
diff --git a/Documentation/admin-guide/media/vivid.rst b/Documentation/admin-guide/media/vivid.rst
index 6d7175f96f74..4f680dc9661c 100644
--- a/Documentation/admin-guide/media/vivid.rst
+++ b/Documentation/admin-guide/media/vivid.rst
@@ -714,6 +714,20 @@ The Test Pattern Controls are all specific to video capture.
does the same for the EAV (End of Active Video) code.
+- Insert Video Guard Band
+
+ adds 4 columns of pixels with the HDMI Video Guard Band code at the
+ left hand side of the image. This only works with 3 or 4 byte RGB pixel
+ formats. The RGB pixel value 0xab/0x55/0xab turns out to be equivalent
+ to the HDMI Video Guard Band code that precedes each active video line
+ (see section 5.2.2.1 in the HDMI 1.3 Specification). To test if a video
+ receiver has correct HDMI Video Guard Band processing, enable this
+ control and then move the image to the left hand side of the screen.
+ That will result in video lines that start with multiple pixels that
+ have the same value as the Video Guard Band that precedes them.
+ Receivers that will just keep skipping Video Guard Band values will
+ now fail and either loose sync or these video lines will shift.
+
Capture Feature Selection Controls
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/Documentation/admin-guide/mm/cma_debugfs.rst b/Documentation/admin-guide/mm/cma_debugfs.rst
index 4e06ffabd78a..7367e6294ef6 100644
--- a/Documentation/admin-guide/mm/cma_debugfs.rst
+++ b/Documentation/admin-guide/mm/cma_debugfs.rst
@@ -5,10 +5,10 @@ CMA Debugfs Interface
The CMA debugfs interface is useful to retrieve basic information out of the
different CMA areas and to test allocation/release in each of the areas.
-Each CMA zone represents a directory under <debugfs>/cma/, indexed by the
-kernel's CMA index. So the first CMA zone would be:
+Each CMA area represents a directory under <debugfs>/cma/, represented by
+its CMA name like below:
- <debugfs>/cma/cma-0
+ <debugfs>/cma/<cma_name>
The structure of the files created under that directory is as follows:
@@ -18,8 +18,8 @@ The structure of the files created under that directory is as follows:
- [RO] bitmap: The bitmap of page states in the zone.
- [WO] alloc: Allocate N pages from that CMA area. For example::
- echo 5 > <debugfs>/cma/cma-2/alloc
+ echo 5 > <debugfs>/cma/<cma_name>/alloc
-would try to allocate 5 pages from the cma-2 area.
+would try to allocate 5 pages from the 'cma_name' area.
- [WO] free: Free N pages from that CMA area, similar to the above.
diff --git a/Documentation/admin-guide/mm/concepts.rst b/Documentation/admin-guide/mm/concepts.rst
index b966fcff993b..c79f1e336222 100644
--- a/Documentation/admin-guide/mm/concepts.rst
+++ b/Documentation/admin-guide/mm/concepts.rst
@@ -125,7 +125,7 @@ processor. Each bank is referred to as a `node` and for each node Linux
constructs an independent memory management subsystem. A node has its
own set of zones, lists of free and used pages and various statistics
counters. You can find more details about NUMA in
-:ref:`Documentation/vm/numa.rst <numa>` and in
+:ref:`Documentation/mm/numa.rst <numa>` and in
:ref:`Documentation/admin-guide/mm/numa_memory_policy.rst <numa_memory_policy>`.
Page cache
diff --git a/Documentation/admin-guide/mm/damon/index.rst b/Documentation/admin-guide/mm/damon/index.rst
index 61aff88347f3..33d37bb2fb4e 100644
--- a/Documentation/admin-guide/mm/damon/index.rst
+++ b/Documentation/admin-guide/mm/damon/index.rst
@@ -1,10 +1,10 @@
.. SPDX-License-Identifier: GPL-2.0
-========================
-Monitoring Data Accesses
-========================
+==========================
+DAMON: Data Access MONitor
+==========================
-:doc:`DAMON </vm/damon/index>` allows light-weight data access monitoring.
+:doc:`DAMON </mm/damon/index>` allows light-weight data access monitoring.
Using DAMON, users can analyze the memory access patterns of their systems and
optimize those.
@@ -14,3 +14,4 @@ optimize those.
start
usage
reclaim
+ lru_sort
diff --git a/Documentation/admin-guide/mm/damon/lru_sort.rst b/Documentation/admin-guide/mm/damon/lru_sort.rst
new file mode 100644
index 000000000000..c09cace80651
--- /dev/null
+++ b/Documentation/admin-guide/mm/damon/lru_sort.rst
@@ -0,0 +1,294 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================
+DAMON-based LRU-lists Sorting
+=============================
+
+DAMON-based LRU-lists Sorting (DAMON_LRU_SORT) is a static kernel module that
+aimed to be used for proactive and lightweight data access pattern based
+(de)prioritization of pages on their LRU-lists for making LRU-lists a more
+trusworthy data access pattern source.
+
+Where Proactive LRU-lists Sorting is Required?
+==============================================
+
+As page-granularity access checking overhead could be significant on huge
+systems, LRU lists are normally not proactively sorted but partially and
+reactively sorted for special events including specific user requests, system
+calls and memory pressure. As a result, LRU lists are sometimes not so
+perfectly prepared to be used as a trustworthy access pattern source for some
+situations including reclamation target pages selection under sudden memory
+pressure.
+
+Because DAMON can identify access patterns of best-effort accuracy while
+inducing only user-specified range of overhead, proactively running
+DAMON_LRU_SORT could be helpful for making LRU lists more trustworthy access
+pattern source with low and controlled overhead.
+
+How It Works?
+=============
+
+DAMON_LRU_SORT finds hot pages (pages of memory regions that showing access
+rates that higher than a user-specified threshold) and cold pages (pages of
+memory regions that showing no access for a time that longer than a
+user-specified threshold) using DAMON, and prioritizes hot pages while
+deprioritizing cold pages on their LRU-lists. To avoid it consuming too much
+CPU for the prioritizations, a CPU time usage limit can be configured. Under
+the limit, it prioritizes and deprioritizes more hot and cold pages first,
+respectively. System administrators can also configure under what situation
+this scheme should automatically activated and deactivated with three memory
+pressure watermarks.
+
+Its default parameters for hotness/coldness thresholds and CPU quota limit are
+conservatively chosen. That is, the module under its default parameters could
+be widely used without harm for common situations while providing a level of
+benefits for systems having clear hot/cold access patterns under memory
+pressure while consuming only a limited small portion of CPU time.
+
+Interface: Module Parameters
+============================
+
+To use this feature, you should first ensure your system is running on a kernel
+that is built with ``CONFIG_DAMON_LRU_SORT=y``.
+
+To let sysadmins enable or disable it and tune for the given system,
+DAMON_LRU_SORT utilizes module parameters. That is, you can put
+``damon_lru_sort.<parameter>=<value>`` on the kernel boot command line or write
+proper values to ``/sys/modules/damon_lru_sort/parameters/<parameter>`` files.
+
+Below are the description of each parameter.
+
+enabled
+-------
+
+Enable or disable DAMON_LRU_SORT.
+
+You can enable DAMON_LRU_SORT by setting the value of this parameter as ``Y``.
+Setting it as ``N`` disables DAMON_LRU_SORT. Note that DAMON_LRU_SORT could do
+no real monitoring and LRU-lists sorting due to the watermarks-based activation
+condition. Refer to below descriptions for the watermarks parameter for this.
+
+commit_inputs
+-------------
+
+Make DAMON_LRU_SORT reads the input parameters again, except ``enabled``.
+
+Input parameters that updated while DAMON_LRU_SORT is running are not applied
+by default. Once this parameter is set as ``Y``, DAMON_LRU_SORT reads values
+of parametrs except ``enabled`` again. Once the re-reading is done, this
+parameter is set as ``N``. If invalid parameters are found while the
+re-reading, DAMON_LRU_SORT will be disabled.
+
+hot_thres_access_freq
+---------------------
+
+Access frequency threshold for hot memory regions identification in permil.
+
+If a memory region is accessed in frequency of this or higher, DAMON_LRU_SORT
+identifies the region as hot, and mark it as accessed on the LRU list, so that
+it could not be reclaimed under memory pressure. 50% by default.
+
+cold_min_age
+------------
+
+Time threshold for cold memory regions identification in microseconds.
+
+If a memory region is not accessed for this or longer time, DAMON_LRU_SORT
+identifies the region as cold, and mark it as unaccessed on the LRU list, so
+that it could be reclaimed first under memory pressure. 120 seconds by
+default.
+
+quota_ms
+--------
+
+Limit of time for trying the LRU lists sorting in milliseconds.
+
+DAMON_LRU_SORT tries to use only up to this time within a time window
+(quota_reset_interval_ms) for trying LRU lists sorting. This can be used
+for limiting CPU consumption of DAMON_LRU_SORT. If the value is zero, the
+limit is disabled.
+
+10 ms by default.
+
+quota_reset_interval_ms
+-----------------------
+
+The time quota charge reset interval in milliseconds.
+
+The charge reset interval for the quota of time (quota_ms). That is,
+DAMON_LRU_SORT does not try LRU-lists sorting for more than quota_ms
+milliseconds or quota_sz bytes within quota_reset_interval_ms milliseconds.
+
+1 second by default.
+
+wmarks_interval
+---------------
+
+The watermarks check time interval in microseconds.
+
+Minimal time to wait before checking the watermarks, when DAMON_LRU_SORT is
+enabled but inactive due to its watermarks rule. 5 seconds by default.
+
+wmarks_high
+-----------
+
+Free memory rate (per thousand) for the high watermark.
+
+If free memory of the system in bytes per thousand bytes is higher than this,
+DAMON_LRU_SORT becomes inactive, so it does nothing but periodically checks the
+watermarks. 200 (20%) by default.
+
+wmarks_mid
+----------
+
+Free memory rate (per thousand) for the middle watermark.
+
+If free memory of the system in bytes per thousand bytes is between this and
+the low watermark, DAMON_LRU_SORT becomes active, so starts the monitoring and
+the LRU-lists sorting. 150 (15%) by default.
+
+wmarks_low
+----------
+
+Free memory rate (per thousand) for the low watermark.
+
+If free memory of the system in bytes per thousand bytes is lower than this,
+DAMON_LRU_SORT becomes inactive, so it does nothing but periodically checks the
+watermarks. 50 (5%) by default.
+
+sample_interval
+---------------
+
+Sampling interval for the monitoring in microseconds.
+
+The sampling interval of DAMON for the cold memory monitoring. Please refer to
+the DAMON documentation (:doc:`usage`) for more detail. 5ms by default.
+
+aggr_interval
+-------------
+
+Aggregation interval for the monitoring in microseconds.
+
+The aggregation interval of DAMON for the cold memory monitoring. Please
+refer to the DAMON documentation (:doc:`usage`) for more detail. 100ms by
+default.
+
+min_nr_regions
+--------------
+
+Minimum number of monitoring regions.
+
+The minimal number of monitoring regions of DAMON for the cold memory
+monitoring. This can be used to set lower-bound of the monitoring quality.
+But, setting this too high could result in increased monitoring overhead.
+Please refer to the DAMON documentation (:doc:`usage`) for more detail. 10 by
+default.
+
+max_nr_regions
+--------------
+
+Maximum number of monitoring regions.
+
+The maximum number of monitoring regions of DAMON for the cold memory
+monitoring. This can be used to set upper-bound of the monitoring overhead.
+However, setting this too low could result in bad monitoring quality. Please
+refer to the DAMON documentation (:doc:`usage`) for more detail. 1000 by
+defaults.
+
+monitor_region_start
+--------------------
+
+Start of target memory region in physical address.
+
+The start physical address of memory region that DAMON_LRU_SORT will do work
+against. By default, biggest System RAM is used as the region.
+
+monitor_region_end
+------------------
+
+End of target memory region in physical address.
+
+The end physical address of memory region that DAMON_LRU_SORT will do work
+against. By default, biggest System RAM is used as the region.
+
+kdamond_pid
+-----------
+
+PID of the DAMON thread.
+
+If DAMON_LRU_SORT is enabled, this becomes the PID of the worker thread. Else,
+-1.
+
+nr_lru_sort_tried_hot_regions
+-----------------------------
+
+Number of hot memory regions that tried to be LRU-sorted.
+
+bytes_lru_sort_tried_hot_regions
+--------------------------------
+
+Total bytes of hot memory regions that tried to be LRU-sorted.
+
+nr_lru_sorted_hot_regions
+-------------------------
+
+Number of hot memory regions that successfully be LRU-sorted.
+
+bytes_lru_sorted_hot_regions
+----------------------------
+
+Total bytes of hot memory regions that successfully be LRU-sorted.
+
+nr_hot_quota_exceeds
+--------------------
+
+Number of times that the time quota limit for hot regions have exceeded.
+
+nr_lru_sort_tried_cold_regions
+------------------------------
+
+Number of cold memory regions that tried to be LRU-sorted.
+
+bytes_lru_sort_tried_cold_regions
+---------------------------------
+
+Total bytes of cold memory regions that tried to be LRU-sorted.
+
+nr_lru_sorted_cold_regions
+--------------------------
+
+Number of cold memory regions that successfully be LRU-sorted.
+
+bytes_lru_sorted_cold_regions
+-----------------------------
+
+Total bytes of cold memory regions that successfully be LRU-sorted.
+
+nr_cold_quota_exceeds
+---------------------
+
+Number of times that the time quota limit for cold regions have exceeded.
+
+Example
+=======
+
+Below runtime example commands make DAMON_LRU_SORT to find memory regions
+having >=50% access frequency and LRU-prioritize while LRU-deprioritizing
+memory regions that not accessed for 120 seconds. The prioritization and
+deprioritization is limited to be done using only up to 1% CPU time to avoid
+DAMON_LRU_SORT consuming too much CPU time for the (de)prioritization. It also
+asks DAMON_LRU_SORT to do nothing if the system's free memory rate is more than
+50%, but start the real works if it becomes lower than 40%. If DAMON_RECLAIM
+doesn't make progress and therefore the free memory rate becomes lower than
+20%, it asks DAMON_LRU_SORT to do nothing again, so that we can fall back to
+the LRU-list based page granularity reclamation. ::
+
+ # cd /sys/modules/damon_lru_sort/parameters
+ # echo 500 > hot_thres_access_freq
+ # echo 120000000 > cold_min_age
+ # echo 10 > quota_ms
+ # echo 1000 > quota_reset_interval_ms
+ # echo 500 > wmarks_high
+ # echo 400 > wmarks_mid
+ # echo 200 > wmarks_low
+ # echo Y > enabled
diff --git a/Documentation/admin-guide/mm/damon/reclaim.rst b/Documentation/admin-guide/mm/damon/reclaim.rst
index 46306f1f34b1..4f1479a11e63 100644
--- a/Documentation/admin-guide/mm/damon/reclaim.rst
+++ b/Documentation/admin-guide/mm/damon/reclaim.rst
@@ -48,12 +48,6 @@ DAMON_RECLAIM utilizes module parameters. That is, you can put
``damon_reclaim.<parameter>=<value>`` on the kernel boot command line or write
proper values to ``/sys/modules/damon_reclaim/parameters/<parameter>`` files.
-Note that the parameter values except ``enabled`` are applied only when
-DAMON_RECLAIM starts. Therefore, if you want to apply new parameter values in
-runtime and DAMON_RECLAIM is already enabled, you should disable and re-enable
-it via ``enabled`` parameter file. Writing of the new values to proper
-parameter values should be done before the re-enablement.
-
Below are the description of each parameter.
enabled
@@ -268,4 +262,4 @@ granularity reclamation. ::
.. [1] https://research.google/pubs/pub48551/
.. [2] https://lwn.net/Articles/787611/
-.. [3] https://www.kernel.org/doc/html/latest/vm/free_page_reporting.html
+.. [3] https://www.kernel.org/doc/html/latest/mm/free_page_reporting.html
diff --git a/Documentation/admin-guide/mm/damon/start.rst b/Documentation/admin-guide/mm/damon/start.rst
index 4d5ca2c46288..9f88afc734da 100644
--- a/Documentation/admin-guide/mm/damon/start.rst
+++ b/Documentation/admin-guide/mm/damon/start.rst
@@ -29,16 +29,9 @@ called DAMON Operator (DAMO). It is available at
https://github.com/awslabs/damo. The examples below assume that ``damo`` is on
your ``$PATH``. It's not mandatory, though.
-Because DAMO is using the debugfs interface (refer to :doc:`usage` for the
-detail) of DAMON, you should ensure debugfs is mounted. Mount it manually as
-below::
-
- # mount -t debugfs none /sys/kernel/debug/
-
-or append the following line to your ``/etc/fstab`` file so that your system
-can automatically mount debugfs upon booting::
-
- debugfs /sys/kernel/debug debugfs defaults 0 0
+Because DAMO is using the sysfs interface (refer to :doc:`usage` for the
+detail) of DAMON, you should ensure :doc:`sysfs </filesystems/sysfs>` is
+mounted.
Recording Data Access Patterns
diff --git a/Documentation/admin-guide/mm/damon/usage.rst b/Documentation/admin-guide/mm/damon/usage.rst
index 1bb7b72414b2..b47b0cbbd491 100644
--- a/Documentation/admin-guide/mm/damon/usage.rst
+++ b/Documentation/admin-guide/mm/damon/usage.rst
@@ -30,11 +30,11 @@ DAMON provides below interfaces for different users.
<sysfs_interface>`. This will be removed after next LTS kernel is released,
so users should move to the :ref:`sysfs interface <sysfs_interface>`.
- *Kernel Space Programming Interface.*
- :doc:`This </vm/damon/api>` is for kernel space programmers. Using this,
+ :doc:`This </mm/damon/api>` is for kernel space programmers. Using this,
users can utilize every feature of DAMON most flexibly and efficiently by
writing kernel space DAMON application programs for you. You can even extend
DAMON for various address spaces. For detail, please refer to the interface
- :doc:`document </vm/damon/api>`.
+ :doc:`document </mm/damon/api>`.
.. _sysfs_interface:
@@ -50,10 +50,10 @@ For a short example, users can monitor the virtual address space of a given
workload as below. ::
# cd /sys/kernel/mm/damon/admin/
- # echo 1 > kdamonds/nr && echo 1 > kdamonds/0/contexts/nr
+ # echo 1 > kdamonds/nr_kdamonds && echo 1 > kdamonds/0/contexts/nr_contexts
# echo vaddr > kdamonds/0/contexts/0/operations
- # echo 1 > kdamonds/0/contexts/0/targets/nr
- # echo $(pidof <workload>) > kdamonds/0/contexts/0/targets/0/pid
+ # echo 1 > kdamonds/0/contexts/0/targets/nr_targets
+ # echo $(pidof <workload>) > kdamonds/0/contexts/0/targets/0/pid_target
# echo on > kdamonds/0/state
Files Hierarchy
@@ -185,7 +185,7 @@ controls the monitoring overhead, exist. You can set and get the values by
writing to and rading from the files.
For more details about the intervals and monitoring regions range, please refer
-to the Design document (:doc:`/vm/damon/design`).
+to the Design document (:doc:`/mm/damon/design`).
contexts/<N>/targets/
---------------------
@@ -264,6 +264,8 @@ that can be written to and read from the file and their meaning are as below.
- ``pageout``: Call ``madvise()`` for the region with ``MADV_PAGEOUT``
- ``hugepage``: Call ``madvise()`` for the region with ``MADV_HUGEPAGE``
- ``nohugepage``: Call ``madvise()`` for the region with ``MADV_NOHUGEPAGE``
+ - ``lru_prio``: Prioritize the region on its LRU lists.
+ - ``lru_deprio``: Deprioritize the region on its LRU lists.
- ``stat``: Do nothing but count the statistics
schemes/<N>/access_pattern/
@@ -364,12 +366,12 @@ memory rate becomes larger than 60%, or lower than 30%". ::
# echo 1 > kdamonds/0/contexts/0/schemes/nr_schemes
# cd kdamonds/0/contexts/0/schemes/0
# # set the basic access pattern and the action
- # echo 4096 > access_patterns/sz/min
- # echo 8192 > access_patterns/sz/max
- # echo 0 > access_patterns/nr_accesses/min
- # echo 5 > access_patterns/nr_accesses/max
- # echo 10 > access_patterns/age/min
- # echo 20 > access_patterns/age/max
+ # echo 4096 > access_pattern/sz/min
+ # echo 8192 > access_pattern/sz/max
+ # echo 0 > access_pattern/nr_accesses/min
+ # echo 5 > access_pattern/nr_accesses/max
+ # echo 10 > access_pattern/age/min
+ # echo 20 > access_pattern/age/max
# echo pageout > action
# # set quotas
# echo 10 > quotas/ms
@@ -391,6 +393,11 @@ the files as above. Above is only for an example.
debugfs Interface
=================
+.. note::
+
+ DAMON debugfs interface will be removed after next LTS kernel is released, so
+ users should move to the :ref:`sysfs interface <sysfs_interface>`.
+
DAMON exports eight files, ``attrs``, ``target_ids``, ``init_regions``,
``schemes``, ``monitor_on``, ``kdamond_pid``, ``mk_contexts`` and
``rm_contexts`` under its debugfs directory, ``<debugfs>/damon/``.
@@ -402,7 +409,7 @@ Attributes
Users can get and set the ``sampling interval``, ``aggregation interval``,
``update interval``, and min/max number of monitoring target regions by
reading from and writing to the ``attrs`` file. To know about the monitoring
-attributes in detail, please refer to the :doc:`/vm/damon/design`. For
+attributes in detail, please refer to the :doc:`/mm/damon/design`. For
example, below commands set those values to 5 ms, 100 ms, 1,000 ms, 10 and
1000, and then check it again::
diff --git a/Documentation/admin-guide/mm/hugetlbpage.rst b/Documentation/admin-guide/mm/hugetlbpage.rst
index a90330d0a837..19f27c0d92e0 100644
--- a/Documentation/admin-guide/mm/hugetlbpage.rst
+++ b/Documentation/admin-guide/mm/hugetlbpage.rst
@@ -65,7 +65,7 @@ HugePages_Surp
may be temporarily larger than the maximum number of surplus huge
pages when the system is under memory pressure.
Hugepagesize
- is the default hugepage size (in Kb).
+ is the default hugepage size (in kB).
Hugetlb
is the total amount of memory (in kB), consumed by huge
pages of all sizes.
@@ -164,8 +164,8 @@ default_hugepagesz
will all result in 256 2M huge pages being allocated. Valid default
huge page size is architecture dependent.
hugetlb_free_vmemmap
- When CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP is set, this enables optimizing
- unused vmemmap pages associated with each HugeTLB page.
+ When CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP is set, this enables HugeTLB
+ Vmemmap Optimization (HVO).
When multiple huge page sizes are supported, ``/proc/sys/vm/nr_hugepages``
indicates the current number of pre-allocated huge pages of the default size.
diff --git a/Documentation/admin-guide/mm/index.rst b/Documentation/admin-guide/mm/index.rst
index c21b5823f126..d1064e0ba34a 100644
--- a/Documentation/admin-guide/mm/index.rst
+++ b/Documentation/admin-guide/mm/index.rst
@@ -32,10 +32,12 @@ the Linux memory management.
idle_page_tracking
ksm
memory-hotplug
+ multigen_lru
nommu-mmap
numa_memory_policy
numaperf
pagemap
+ shrinker_debugfs
soft-dirty
swap_numa
transhuge
diff --git a/Documentation/admin-guide/mm/ksm.rst b/Documentation/admin-guide/mm/ksm.rst
index b244f0202a03..fb6ba2002a4b 100644
--- a/Documentation/admin-guide/mm/ksm.rst
+++ b/Documentation/admin-guide/mm/ksm.rst
@@ -184,6 +184,42 @@ The maximum possible ``pages_sharing/pages_shared`` ratio is limited by the
``max_page_sharing`` tunable. To increase the ratio ``max_page_sharing`` must
be increased accordingly.
+Monitoring KSM profit
+=====================
+
+KSM can save memory by merging identical pages, but also can consume
+additional memory, because it needs to generate a number of rmap_items to
+save each scanned page's brief rmap information. Some of these pages may
+be merged, but some may not be abled to be merged after being checked
+several times, which are unprofitable memory consumed.
+
+1) How to determine whether KSM save memory or consume memory in system-wide
+ range? Here is a simple approximate calculation for reference::
+
+ general_profit =~ pages_sharing * sizeof(page) - (all_rmap_items) *
+ sizeof(rmap_item);
+
+ where all_rmap_items can be easily obtained by summing ``pages_sharing``,
+ ``pages_shared``, ``pages_unshared`` and ``pages_volatile``.
+
+2) The KSM profit inner a single process can be similarly obtained by the
+ following approximate calculation::
+
+ process_profit =~ ksm_merging_pages * sizeof(page) -
+ ksm_rmap_items * sizeof(rmap_item).
+
+ where ksm_merging_pages is shown under the directory ``/proc/<pid>/``,
+ and ksm_rmap_items is shown in ``/proc/<pid>/ksm_stat``.
+
+From the perspective of application, a high ratio of ``ksm_rmap_items`` to
+``ksm_merging_pages`` means a bad madvise-applied policy, so developers or
+administrators have to rethink how to change madvise policy. Giving an example
+for reference, a page's size is usually 4K, and the rmap_item's size is
+separately 32B on 32-bit CPU architecture and 64B on 64-bit CPU architecture.
+so if the ``ksm_rmap_items/ksm_merging_pages`` ratio exceeds 64 on 64-bit CPU
+or exceeds 128 on 32-bit CPU, then the app's madvise policy should be dropped,
+because the ksm profit is approximately zero or negative.
+
Monitoring KSM events
=====================
diff --git a/Documentation/admin-guide/mm/memory-hotplug.rst b/Documentation/admin-guide/mm/memory-hotplug.rst
index 0f56ecd8ac05..a3c9e8ad8fa0 100644
--- a/Documentation/admin-guide/mm/memory-hotplug.rst
+++ b/Documentation/admin-guide/mm/memory-hotplug.rst
@@ -653,8 +653,8 @@ block might fail:
- Concurrent activity that operates on the same physical memory area, such as
allocating gigantic pages, can result in temporary offlining failures.
-- Out of memory when dissolving huge pages, especially when freeing unused
- vmemmap pages associated with each hugetlb page is enabled.
+- Out of memory when dissolving huge pages, especially when HugeTLB Vmemmap
+ Optimization (HVO) is enabled.
Offlining code may be able to migrate huge page contents, but may not be able
to dissolve the source huge page because it fails allocating (unmovable) pages
diff --git a/Documentation/admin-guide/mm/multigen_lru.rst b/Documentation/admin-guide/mm/multigen_lru.rst
new file mode 100644
index 000000000000..33e068830497
--- /dev/null
+++ b/Documentation/admin-guide/mm/multigen_lru.rst
@@ -0,0 +1,162 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============
+Multi-Gen LRU
+=============
+The multi-gen LRU is an alternative LRU implementation that optimizes
+page reclaim and improves performance under memory pressure. Page
+reclaim decides the kernel's caching policy and ability to overcommit
+memory. It directly impacts the kswapd CPU usage and RAM efficiency.
+
+Quick start
+===========
+Build the kernel with the following configurations.
+
+* ``CONFIG_LRU_GEN=y``
+* ``CONFIG_LRU_GEN_ENABLED=y``
+
+All set!
+
+Runtime options
+===============
+``/sys/kernel/mm/lru_gen/`` contains stable ABIs described in the
+following subsections.
+
+Kill switch
+-----------
+``enabled`` accepts different values to enable or disable the
+following components. Its default value depends on
+``CONFIG_LRU_GEN_ENABLED``. All the components should be enabled
+unless some of them have unforeseen side effects. Writing to
+``enabled`` has no effect when a component is not supported by the
+hardware, and valid values will be accepted even when the main switch
+is off.
+
+====== ===============================================================
+Values Components
+====== ===============================================================
+0x0001 The main switch for the multi-gen LRU.
+0x0002 Clearing the accessed bit in leaf page table entries in large
+ batches, when MMU sets it (e.g., on x86). This behavior can
+ theoretically worsen lock contention (mmap_lock). If it is
+ disabled, the multi-gen LRU will suffer a minor performance
+ degradation for workloads that contiguously map hot pages,
+ whose accessed bits can be otherwise cleared by fewer larger
+ batches.
+0x0004 Clearing the accessed bit in non-leaf page table entries as
+ well, when MMU sets it (e.g., on x86). This behavior was not
+ verified on x86 varieties other than Intel and AMD. If it is
+ disabled, the multi-gen LRU will suffer a negligible
+ performance degradation.
+[yYnN] Apply to all the components above.
+====== ===============================================================
+
+E.g.,
+::
+
+ echo y >/sys/kernel/mm/lru_gen/enabled
+ cat /sys/kernel/mm/lru_gen/enabled
+ 0x0007
+ echo 5 >/sys/kernel/mm/lru_gen/enabled
+ cat /sys/kernel/mm/lru_gen/enabled
+ 0x0005
+
+Thrashing prevention
+--------------------
+Personal computers are more sensitive to thrashing because it can
+cause janks (lags when rendering UI) and negatively impact user
+experience. The multi-gen LRU offers thrashing prevention to the
+majority of laptop and desktop users who do not have ``oomd``.
+
+Users can write ``N`` to ``min_ttl_ms`` to prevent the working set of
+``N`` milliseconds from getting evicted. The OOM killer is triggered
+if this working set cannot be kept in memory. In other words, this
+option works as an adjustable pressure relief valve, and when open, it
+terminates applications that are hopefully not being used.
+
+Based on the average human detectable lag (~100ms), ``N=1000`` usually
+eliminates intolerable janks due to thrashing. Larger values like
+``N=3000`` make janks less noticeable at the risk of premature OOM
+kills.
+
+The default value ``0`` means disabled.
+
+Experimental features
+=====================
+``/sys/kernel/debug/lru_gen`` accepts commands described in the
+following subsections. Multiple command lines are supported, so does
+concatenation with delimiters ``,`` and ``;``.
+
+``/sys/kernel/debug/lru_gen_full`` provides additional stats for
+debugging. ``CONFIG_LRU_GEN_STATS=y`` keeps historical stats from
+evicted generations in this file.
+
+Working set estimation
+----------------------
+Working set estimation measures how much memory an application needs
+in a given time interval, and it is usually done with little impact on
+the performance of the application. E.g., data centers want to
+optimize job scheduling (bin packing) to improve memory utilizations.
+When a new job comes in, the job scheduler needs to find out whether
+each server it manages can allocate a certain amount of memory for
+this new job before it can pick a candidate. To do so, the job
+scheduler needs to estimate the working sets of the existing jobs.
+
+When it is read, ``lru_gen`` returns a histogram of numbers of pages
+accessed over different time intervals for each memcg and node.
+``MAX_NR_GENS`` decides the number of bins for each histogram. The
+histograms are noncumulative.
+::
+
+ memcg memcg_id memcg_path
+ node node_id
+ min_gen_nr age_in_ms nr_anon_pages nr_file_pages
+ ...
+ max_gen_nr age_in_ms nr_anon_pages nr_file_pages
+
+Each bin contains an estimated number of pages that have been accessed
+within ``age_in_ms``. E.g., ``min_gen_nr`` contains the coldest pages
+and ``max_gen_nr`` contains the hottest pages, since ``age_in_ms`` of
+the former is the largest and that of the latter is the smallest.
+
+Users can write the following command to ``lru_gen`` to create a new
+generation ``max_gen_nr+1``:
+
+ ``+ memcg_id node_id max_gen_nr [can_swap [force_scan]]``
+
+``can_swap`` defaults to the swap setting and, if it is set to ``1``,
+it forces the scan of anon pages when swap is off, and vice versa.
+``force_scan`` defaults to ``1`` and, if it is set to ``0``, it
+employs heuristics to reduce the overhead, which is likely to reduce
+the coverage as well.
+
+A typical use case is that a job scheduler runs this command at a
+certain time interval to create new generations, and it ranks the
+servers it manages based on the sizes of their cold pages defined by
+this time interval.
+
+Proactive reclaim
+-----------------
+Proactive reclaim induces page reclaim when there is no memory
+pressure. It usually targets cold pages only. E.g., when a new job
+comes in, the job scheduler wants to proactively reclaim cold pages on
+the server it selected, to improve the chance of successfully landing
+this new job.
+
+Users can write the following command to ``lru_gen`` to evict
+generations less than or equal to ``min_gen_nr``.
+
+ ``- memcg_id node_id min_gen_nr [swappiness [nr_to_reclaim]]``
+
+``min_gen_nr`` should be less than ``max_gen_nr-1``, since
+``max_gen_nr`` and ``max_gen_nr-1`` are not fully aged (equivalent to
+the active list) and therefore cannot be evicted. ``swappiness``
+overrides the default value in ``/proc/sys/vm/swappiness``.
+``nr_to_reclaim`` limits the number of pages to evict.
+
+A typical use case is that a job scheduler runs this command before it
+tries to land a new job on a server. If it fails to materialize enough
+cold pages because of the overestimation, it retries on the next
+server according to the ranking result obtained from the working set
+estimation step. This less forceful approach limits the impacts on the
+existing jobs.
diff --git a/Documentation/admin-guide/mm/shrinker_debugfs.rst b/Documentation/admin-guide/mm/shrinker_debugfs.rst
new file mode 100644
index 000000000000..3887f0b294fe
--- /dev/null
+++ b/Documentation/admin-guide/mm/shrinker_debugfs.rst
@@ -0,0 +1,135 @@
+.. _shrinker_debugfs:
+
+==========================
+Shrinker Debugfs Interface
+==========================
+
+Shrinker debugfs interface provides a visibility into the kernel memory
+shrinkers subsystem and allows to get information about individual shrinkers
+and interact with them.
+
+For each shrinker registered in the system a directory in **<debugfs>/shrinker/**
+is created. The directory's name is composed from the shrinker's name and an
+unique id: e.g. *kfree_rcu-0* or *sb-xfs:vda1-36*.
+
+Each shrinker directory contains **count** and **scan** files, which allow to
+trigger *count_objects()* and *scan_objects()* callbacks for each memcg and
+numa node (if applicable).
+
+Usage:
+------
+
+1. *List registered shrinkers*
+
+ ::
+
+ $ cd /sys/kernel/debug/shrinker/
+ $ ls
+ dquota-cache-16 sb-devpts-28 sb-proc-47 sb-tmpfs-42
+ mm-shadow-18 sb-devtmpfs-5 sb-proc-48 sb-tmpfs-43
+ mm-zspool:zram0-34 sb-hugetlbfs-17 sb-pstore-31 sb-tmpfs-44
+ rcu-kfree-0 sb-hugetlbfs-33 sb-rootfs-2 sb-tmpfs-49
+ sb-aio-20 sb-iomem-12 sb-securityfs-6 sb-tracefs-13
+ sb-anon_inodefs-15 sb-mqueue-21 sb-selinuxfs-22 sb-xfs:vda1-36
+ sb-bdev-3 sb-nsfs-4 sb-sockfs-8 sb-zsmalloc-19
+ sb-bpf-32 sb-pipefs-14 sb-sysfs-26 thp-deferred_split-10
+ sb-btrfs:vda2-24 sb-proc-25 sb-tmpfs-1 thp-zero-9
+ sb-cgroup2-30 sb-proc-39 sb-tmpfs-27 xfs-buf:vda1-37
+ sb-configfs-23 sb-proc-41 sb-tmpfs-29 xfs-inodegc:vda1-38
+ sb-dax-11 sb-proc-45 sb-tmpfs-35
+ sb-debugfs-7 sb-proc-46 sb-tmpfs-40
+
+2. *Get information about a specific shrinker*
+
+ ::
+
+ $ cd sb-btrfs\:vda2-24/
+ $ ls
+ count scan
+
+3. *Count objects*
+
+ Each line in the output has the following format::
+
+ <cgroup inode id> <nr of objects on node 0> <nr of objects on node 1> ...
+ <cgroup inode id> <nr of objects on node 0> <nr of objects on node 1> ...
+ ...
+
+ If there are no objects on all numa nodes, a line is omitted. If there
+ are no objects at all, the output might be empty.
+
+ If the shrinker is not memcg-aware or CONFIG_MEMCG is off, 0 is printed
+ as cgroup inode id. If the shrinker is not numa-aware, 0's are printed
+ for all nodes except the first one.
+ ::
+
+ $ cat count
+ 1 224 2
+ 21 98 0
+ 55 818 10
+ 2367 2 0
+ 2401 30 0
+ 225 13 0
+ 599 35 0
+ 939 124 0
+ 1041 3 0
+ 1075 1 0
+ 1109 1 0
+ 1279 60 0
+ 1313 7 0
+ 1347 39 0
+ 1381 3 0
+ 1449 14 0
+ 1483 63 0
+ 1517 53 0
+ 1551 6 0
+ 1585 1 0
+ 1619 6 0
+ 1653 40 0
+ 1687 11 0
+ 1721 8 0
+ 1755 4 0
+ 1789 52 0
+ 1823 888 0
+ 1857 1 0
+ 1925 2 0
+ 1959 32 0
+ 2027 22 0
+ 2061 9 0
+ 2469 799 0
+ 2537 861 0
+ 2639 1 0
+ 2707 70 0
+ 2775 4 0
+ 2877 84 0
+ 293 1 0
+ 735 8 0
+
+4. *Scan objects*
+
+ The expected input format::
+
+ <cgroup inode id> <numa id> <number of objects to scan>
+
+ For a non-memcg-aware shrinker or on a system with no memory
+ cgrups **0** should be passed as cgroup id.
+ ::
+
+ $ cd /sys/kernel/debug/shrinker/
+ $ cd sb-btrfs\:vda2-24/
+
+ $ cat count | head -n 5
+ 1 212 0
+ 21 97 0
+ 55 802 5
+ 2367 2 0
+ 225 13 0
+
+ $ echo "55 0 200" > scan
+
+ $ cat count | head -n 5
+ 1 212 0
+ 21 96 0
+ 55 752 5
+ 2367 2 0
+ 225 13 0
diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst
index c9c37f16eef8..8ee78ec232eb 100644
--- a/Documentation/admin-guide/mm/transhuge.rst
+++ b/Documentation/admin-guide/mm/transhuge.rst
@@ -191,7 +191,14 @@ allocation failure to throttle the next allocation attempt::
/sys/kernel/mm/transparent_hugepage/khugepaged/alloc_sleep_millisecs
-The khugepaged progress can be seen in the number of pages collapsed::
+The khugepaged progress can be seen in the number of pages collapsed (note
+that this counter may not be an exact count of the number of pages
+collapsed, since "collapsed" could mean multiple things: (1) A PTE mapping
+being replaced by a PMD mapping, or (2) All 4K physical pages replaced by
+one 2M hugepage. Each may happen independently, or together, depending on
+the type of memory and the failures that occur. As such, this value should
+be interpreted roughly as a sign of progress, and counters in /proc/vmstat
+consulted for more accurate accounting)::
/sys/kernel/mm/transparent_hugepage/khugepaged/pages_collapsed
@@ -366,10 +373,9 @@ thp_split_pmd
page table entry.
thp_zero_page_alloc
- is incremented every time a huge zero page is
- successfully allocated. It includes allocations which where
- dropped due race with other allocation. Note, it doesn't count
- every map of the huge zero page, only its allocation.
+ is incremented every time a huge zero page used for thp is
+ successfully allocated. Note, it doesn't count every map of
+ the huge zero page, only its allocation.
thp_zero_page_alloc_failed
is incremented if kernel fails to allocate
diff --git a/Documentation/admin-guide/mm/userfaultfd.rst b/Documentation/admin-guide/mm/userfaultfd.rst
index 6528036093e1..83f31919ebb3 100644
--- a/Documentation/admin-guide/mm/userfaultfd.rst
+++ b/Documentation/admin-guide/mm/userfaultfd.rst
@@ -17,7 +17,10 @@ of the ``PROT_NONE+SIGSEGV`` trick.
Design
======
-Userfaults are delivered and resolved through the ``userfaultfd`` syscall.
+Userspace creates a new userfaultfd, initializes it, and registers one or more
+regions of virtual memory with it. Then, any page faults which occur within the
+region(s) result in a message being delivered to the userfaultfd, notifying
+userspace of the fault.
The ``userfaultfd`` (aside from registering and unregistering virtual
memory ranges) provides two primary functionalities:
@@ -34,12 +37,11 @@ The real advantage of userfaults if compared to regular virtual memory
management of mremap/mprotect is that the userfaults in all their
operations never involve heavyweight structures like vmas (in fact the
``userfaultfd`` runtime load never takes the mmap_lock for writing).
-
Vmas are not suitable for page- (or hugepage) granular fault tracking
when dealing with virtual address spaces that could span
Terabytes. Too many vmas would be needed for that.
-The ``userfaultfd`` once opened by invoking the syscall, can also be
+The ``userfaultfd``, once created, can also be
passed using unix domain sockets to a manager process, so the same
manager process could handle the userfaults of a multitude of
different processes without them being aware about what is going on
@@ -50,6 +52,39 @@ is a corner case that would currently return ``-EBUSY``).
API
===
+Creating a userfaultfd
+----------------------
+
+There are two ways to create a new userfaultfd, each of which provide ways to
+restrict access to this functionality (since historically userfaultfds which
+handle kernel page faults have been a useful tool for exploiting the kernel).
+
+The first way, supported since userfaultfd was introduced, is the
+userfaultfd(2) syscall. Access to this is controlled in several ways:
+
+- Any user can always create a userfaultfd which traps userspace page faults
+ only. Such a userfaultfd can be created using the userfaultfd(2) syscall
+ with the flag UFFD_USER_MODE_ONLY.
+
+- In order to also trap kernel page faults for the address space, either the
+ process needs the CAP_SYS_PTRACE capability, or the system must have
+ vm.unprivileged_userfaultfd set to 1. By default, vm.unprivileged_userfaultfd
+ is set to 0.
+
+The second way, added to the kernel more recently, is by opening
+/dev/userfaultfd and issuing a USERFAULTFD_IOC_NEW ioctl to it. This method
+yields equivalent userfaultfds to the userfaultfd(2) syscall.
+
+Unlike userfaultfd(2), access to /dev/userfaultfd is controlled via normal
+filesystem permissions (user/group/mode), which gives fine grained access to
+userfaultfd specifically, without also granting other unrelated privileges at
+the same time (as e.g. granting CAP_SYS_PTRACE would do). Users who have access
+to /dev/userfaultfd can always create userfaultfds that trap kernel page faults;
+vm.unprivileged_userfaultfd is not considered.
+
+Initializing a userfaultfd
+--------------------------
+
When first opened the ``userfaultfd`` must be enabled invoking the
``UFFDIO_API`` ioctl specifying a ``uffdio_api.api`` value set to ``UFFD_API`` (or
a later API version) which will specify the ``read/POLLIN`` protocol
diff --git a/Documentation/admin-guide/perf/alibaba_pmu.rst b/Documentation/admin-guide/perf/alibaba_pmu.rst
new file mode 100644
index 000000000000..11de998bb480
--- /dev/null
+++ b/Documentation/admin-guide/perf/alibaba_pmu.rst
@@ -0,0 +1,100 @@
+=============================================================
+Alibaba's T-Head SoC Uncore Performance Monitoring Unit (PMU)
+=============================================================
+
+The Yitian 710, custom-built by Alibaba Group's chip development business,
+T-Head, implements uncore PMU for performance and functional debugging to
+facilitate system maintenance.
+
+DDR Sub-System Driveway (DRW) PMU Driver
+=========================================
+
+Yitian 710 employs eight DDR5/4 channels, four on each die. Each DDR5 channel
+is independent of others to service system memory requests. And one DDR5
+channel is split into two independent sub-channels. The DDR Sub-System Driveway
+implements separate PMUs for each sub-channel to monitor various performance
+metrics.
+
+The Driveway PMU devices are named as ali_drw_<sys_base_addr> with perf.
+For example, ali_drw_21000 and ali_drw_21080 are two PMU devices for two
+sub-channels of the same channel in die 0. And the PMU device of die 1 is
+prefixed with ali_drw_400XXXXX, e.g. ali_drw_40021000.
+
+Each sub-channel has 36 PMU counters in total, which is classified into
+four groups:
+
+- Group 0: PMU Cycle Counter. This group has one pair of counters
+ pmu_cycle_cnt_low and pmu_cycle_cnt_high, that is used as the cycle count
+ based on DDRC core clock.
+
+- Group 1: PMU Bandwidth Counters. This group has 8 counters that are used
+ to count the total access number of either the eight bank groups in a
+ selected rank, or four ranks separately in the first 4 counters. The base
+ transfer unit is 64B.
+
+- Group 2: PMU Retry Counters. This group has 10 counters, that intend to
+ count the total retry number of each type of uncorrectable error.
+
+- Group 3: PMU Common Counters. This group has 16 counters, that are used
+ to count the common events.
+
+For now, the Driveway PMU driver only uses counters in group 0 and group 3.
+
+The DDR Controller (DDRCTL) and DDR PHY combine to create a complete solution
+for connecting an SoC application bus to DDR memory devices. The DDRCTL
+receives transactions Host Interface (HIF) which is custom-defined by Synopsys.
+These transactions are queued internally and scheduled for access while
+satisfying the SDRAM protocol timing requirements, transaction priorities, and
+dependencies between the transactions. The DDRCTL in turn issues commands on
+the DDR PHY Interface (DFI) to the PHY module, which launches and captures data
+to and from the SDRAM. The driveway PMUs have hardware logic to gather
+statistics and performance logging signals on HIF, DFI, etc.
+
+By counting the READ, WRITE and RMW commands sent to the DDRC through the HIF
+interface, we could calculate the bandwidth. Example usage of counting memory
+data bandwidth::
+
+ perf stat \
+ -e ali_drw_21000/hif_wr/ \
+ -e ali_drw_21000/hif_rd/ \
+ -e ali_drw_21000/hif_rmw/ \
+ -e ali_drw_21000/cycle/ \
+ -e ali_drw_21080/hif_wr/ \
+ -e ali_drw_21080/hif_rd/ \
+ -e ali_drw_21080/hif_rmw/ \
+ -e ali_drw_21080/cycle/ \
+ -e ali_drw_23000/hif_wr/ \
+ -e ali_drw_23000/hif_rd/ \
+ -e ali_drw_23000/hif_rmw/ \
+ -e ali_drw_23000/cycle/ \
+ -e ali_drw_23080/hif_wr/ \
+ -e ali_drw_23080/hif_rd/ \
+ -e ali_drw_23080/hif_rmw/ \
+ -e ali_drw_23080/cycle/ \
+ -e ali_drw_25000/hif_wr/ \
+ -e ali_drw_25000/hif_rd/ \
+ -e ali_drw_25000/hif_rmw/ \
+ -e ali_drw_25000/cycle/ \
+ -e ali_drw_25080/hif_wr/ \
+ -e ali_drw_25080/hif_rd/ \
+ -e ali_drw_25080/hif_rmw/ \
+ -e ali_drw_25080/cycle/ \
+ -e ali_drw_27000/hif_wr/ \
+ -e ali_drw_27000/hif_rd/ \
+ -e ali_drw_27000/hif_rmw/ \
+ -e ali_drw_27000/cycle/ \
+ -e ali_drw_27080/hif_wr/ \
+ -e ali_drw_27080/hif_rd/ \
+ -e ali_drw_27080/hif_rmw/ \
+ -e ali_drw_27080/cycle/ -- sleep 10
+
+The average DRAM bandwidth can be calculated as follows:
+
+- Read Bandwidth = perf_hif_rd * DDRC_WIDTH * DDRC_Freq / DDRC_Cycle
+- Write Bandwidth = (perf_hif_wr + perf_hif_rmw) * DDRC_WIDTH * DDRC_Freq / DDRC_Cycle
+
+Here, DDRC_WIDTH = 64 bytes.
+
+The current driver does not support sampling. So "perf record" is
+unsupported. Also attach to a task is unsupported as the events are all
+uncore.
diff --git a/Documentation/admin-guide/perf/hns3-pmu.rst b/Documentation/admin-guide/perf/hns3-pmu.rst
new file mode 100644
index 000000000000..578407e487d6
--- /dev/null
+++ b/Documentation/admin-guide/perf/hns3-pmu.rst
@@ -0,0 +1,136 @@
+======================================
+HNS3 Performance Monitoring Unit (PMU)
+======================================
+
+HNS3(HiSilicon network system 3) Performance Monitoring Unit (PMU) is an
+End Point device to collect performance statistics of HiSilicon SoC NIC.
+On Hip09, each SICL(Super I/O cluster) has one PMU device.
+
+HNS3 PMU supports collection of performance statistics such as bandwidth,
+latency, packet rate and interrupt rate.
+
+Each HNS3 PMU supports 8 hardware events.
+
+HNS3 PMU driver
+===============
+
+The HNS3 PMU driver registers a perf PMU with the name of its sicl id.::
+
+ /sys/devices/hns3_pmu_sicl_<sicl_id>
+
+PMU driver provides description of available events, filter modes, format,
+identifier and cpumask in sysfs.
+
+The "events" directory describes the event code of all supported events
+shown in perf list.
+
+The "filtermode" directory describes the supported filter modes of each
+event.
+
+The "format" directory describes all formats of the config (events) and
+config1 (filter options) fields of the perf_event_attr structure.
+
+The "identifier" file shows version of PMU hardware device.
+
+The "bdf_min" and "bdf_max" files show the supported bdf range of each
+pmu device.
+
+The "hw_clk_freq" file shows the hardware clock frequency of each pmu
+device.
+
+Example usage of checking event code and subevent code::
+
+ $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_time
+ config=0x00204
+ $# cat /sys/devices/hns3_pmu_sicl_0/events/dly_tx_normal_to_mac_packet_num
+ config=0x10204
+
+Each performance statistic has a pair of events to get two values to
+calculate real performance data in userspace.
+
+The bits 0~15 of config (here 0x0204) are the true hardware event code. If
+two events have same value of bits 0~15 of config, that means they are
+event pair. And the bit 16 of config indicates getting counter 0 or
+counter 1 of hardware event.
+
+After getting two values of event pair in usersapce, the formula of
+computation to calculate real performance data is:::
+
+ counter 0 / counter 1
+
+Example usage of checking supported filter mode::
+
+ $# cat /sys/devices/hns3_pmu_sicl_0/filtermode/bw_ssu_rpu_byte_num
+ filter mode supported: global/port/port-tc/func/func-queue/
+
+Example usage of perf::
+
+ $# perf list
+ hns3_pmu_sicl_0/bw_ssu_rpu_byte_num/ [kernel PMU event]
+ hns3_pmu_sicl_0/bw_ssu_rpu_time/ [kernel PMU event]
+ ------------------------------------------
+
+ $# perf stat -g -e hns3_pmu_sicl_0/bw_ssu_rpu_byte_num,global=1/ -e hns3_pmu_sicl_0/bw_ssu_rpu_time,global=1/ -I 1000
+ or
+ $# perf stat -g -e hns3_pmu_sicl_0/config=0x00002,global=1/ -e hns3_pmu_sicl_0/config=0x10002,global=1/ -I 1000
+
+
+Filter modes
+--------------
+
+1. global mode
+PMU collect performance statistics for all HNS3 PCIe functions of IO DIE.
+Set the "global" filter option to 1 will enable this mode.
+Example usage of perf::
+
+ $# perf stat -a -e hns3_pmu_sicl_0/config=0x1020F,global=1/ -I 1000
+
+2. port mode
+PMU collect performance statistic of one whole physical port. The port id
+is same as mac id. The "tc" filter option must be set to 0xF in this mode,
+here tc stands for traffic class.
+
+Example usage of perf::
+
+ $# perf stat -a -e hns3_pmu_sicl_0/config=0x1020F,port=0,tc=0xF/ -I 1000
+
+3. port-tc mode
+PMU collect performance statistic of one tc of physical port. The port id
+is same as mac id. The "tc" filter option must be set to 0 ~ 7 in this
+mode.
+Example usage of perf::
+
+ $# perf stat -a -e hns3_pmu_sicl_0/config=0x1020F,port=0,tc=0/ -I 1000
+
+4. func mode
+PMU collect performance statistic of one PF/VF. The function id is BDF of
+PF/VF, its conversion formula::
+
+ func = (bus << 8) + (device << 3) + (function)
+
+for example:
+ BDF func
+ 35:00.0 0x3500
+ 35:00.1 0x3501
+ 35:01.0 0x3508
+
+In this mode, the "queue" filter option must be set to 0xFFFF.
+Example usage of perf::
+
+ $# perf stat -a -e hns3_pmu_sicl_0/config=0x1020F,bdf=0x3500,queue=0xFFFF/ -I 1000
+
+5. func-queue mode
+PMU collect performance statistic of one queue of PF/VF. The function id
+is BDF of PF/VF, the "queue" filter option must be set to the exact queue
+id of function.
+Example usage of perf::
+
+ $# perf stat -a -e hns3_pmu_sicl_0/config=0x1020F,bdf=0x3500,queue=0/ -I 1000
+
+6. func-intr mode
+PMU collect performance statistic of one interrupt of PF/VF. The function
+id is BDF of PF/VF, the "intr" filter option must be set to the exact
+interrupt id of function.
+Example usage of perf::
+
+ $# perf stat -a -e hns3_pmu_sicl_0/config=0x00301,bdf=0x3500,intr=0/ -I 1000
diff --git a/Documentation/admin-guide/perf/index.rst b/Documentation/admin-guide/perf/index.rst
index 69b23f087c05..793e1970bc05 100644
--- a/Documentation/admin-guide/perf/index.rst
+++ b/Documentation/admin-guide/perf/index.rst
@@ -9,6 +9,7 @@ Performance monitor support
hisi-pmu
hisi-pcie-pmu
+ hns3-pmu
imx-ddr
qcom_l2_pmu
qcom_l3_pmu
@@ -17,3 +18,4 @@ Performance monitor support
xgene-pmu
arm_dsu_pmu
thunderx2-pmu
+ alibaba_pmu
diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst
index 83b58eb4ab4d..8f3d30c5a0d8 100644
--- a/Documentation/admin-guide/pm/amd-pstate.rst
+++ b/Documentation/admin-guide/pm/amd-pstate.rst
@@ -182,6 +182,7 @@ to the ``struct sugov_cpu`` that the utilization update belongs to.
Then, ``amd-pstate`` updates the desired performance according to the CPU
scheduler assigned.
+.. _processor_support:
Processor Support
=======================
@@ -282,6 +283,8 @@ efficiency frequency management method on AMD processors.
Kernel Module Options for ``amd-pstate``
=========================================
+.. _shared_mem:
+
``shared_mem``
Use a module param (shared_mem) to enable related processors manually with
**amd_pstate.shared_mem=1**.
@@ -393,6 +396,76 @@ about part of the output. ::
CPU_005 712 116384 39 49 166 0.7565 9645075 2214891 38431470 25.1 11.646 469 2.496 kworker/5:0-40
CPU_006 712 116408 39 49 166 0.6769 8950227 1839034 37192089 24.06 11.272 470 2.496 kworker/6:0-1264
+Unit Tests for amd-pstate
+-------------------------
+
+``amd-pstate-ut`` is a test module for testing the ``amd-pstate`` driver.
+
+ * It can help all users to verify their processor support (SBIOS/Firmware or Hardware).
+
+ * Kernel can have a basic function test to avoid the kernel regression during the update.
+
+ * We can introduce more functional or performance tests to align the result together, it will benefit power and performance scale optimization.
+
+1. Test case decriptions
+
+ +---------+--------------------------------+------------------------------------------------------------------------------------+
+ | Index | Functions | Description |
+ +=========+================================+====================================================================================+
+ | 0 | amd_pstate_ut_acpi_cpc_valid || Check whether the _CPC object is present in SBIOS. |
+ | | || |
+ | | || The detail refer to `Processor Support <processor_support_>`_. |
+ +---------+--------------------------------+------------------------------------------------------------------------------------+
+ | 1 | amd_pstate_ut_check_enabled || Check whether AMD P-State is enabled. |
+ | | || |
+ | | || AMD P-States and ACPI hardware P-States always can be supported in one processor. |
+ | | | But AMD P-States has the higher priority and if it is enabled with |
+ | | | :c:macro:`MSR_AMD_CPPC_ENABLE` or ``cppc_set_enable``, it will respond to the |
+ | | | request from AMD P-States. |
+ +---------+--------------------------------+------------------------------------------------------------------------------------+
+ | 2 | amd_pstate_ut_check_perf || Check if the each performance values are reasonable. |
+ | | || highest_perf >= nominal_perf > lowest_nonlinear_perf > lowest_perf > 0. |
+ +---------+--------------------------------+------------------------------------------------------------------------------------+
+ | 3 | amd_pstate_ut_check_freq || Check if the each frequency values and max freq when set support boost mode |
+ | | | are reasonable. |
+ | | || max_freq >= nominal_freq > lowest_nonlinear_freq > min_freq > 0 |
+ | | || If boost is not active but supported, this maximum frequency will be larger than |
+ | | | the one in ``cpuinfo``. |
+ +---------+--------------------------------+------------------------------------------------------------------------------------+
+
+#. How to execute the tests
+
+ We use test module in the kselftest frameworks to implement it.
+ We create amd-pstate-ut module and tie it into kselftest.(for
+ details refer to Linux Kernel Selftests [4]_).
+
+ 1. Build
+
+ + open the :c:macro:`CONFIG_X86_AMD_PSTATE` configuration option.
+ + set the :c:macro:`CONFIG_X86_AMD_PSTATE_UT` configuration option to M.
+ + make project
+ + make selftest ::
+
+ $ cd linux
+ $ make -C tools/testing/selftests
+
+ #. Installation & Steps ::
+
+ $ make -C tools/testing/selftests install INSTALL_PATH=~/kselftest
+ $ sudo ./kselftest/run_kselftest.sh -c amd-pstate
+ TAP version 13
+ 1..1
+ # selftests: amd-pstate: amd-pstate-ut.sh
+ # amd-pstate-ut: ok
+ ok 1 selftests: amd-pstate: amd-pstate-ut.sh
+
+ #. Results ::
+
+ $ dmesg | grep "amd_pstate_ut" | tee log.txt
+ [12977.570663] amd_pstate_ut: 1 amd_pstate_ut_acpi_cpc_valid success!
+ [12977.570673] amd_pstate_ut: 2 amd_pstate_ut_check_enabled success!
+ [12977.571207] amd_pstate_ut: 3 amd_pstate_ut_check_perf success!
+ [12977.571212] amd_pstate_ut: 4 amd_pstate_ut_check_freq success!
Reference
===========
@@ -405,3 +478,6 @@ Reference
.. [3] Processor Programming Reference (PPR) for AMD Family 19h Model 51h, Revision A1 Processors
https://www.amd.com/system/files/TechDocs/56569-A1-PUB.zip
+
+.. [4] Linux Kernel Selftests,
+ https://www.kernel.org/doc/html/latest/dev-tools/kselftest.html
diff --git a/Documentation/admin-guide/pm/cpuidle.rst b/Documentation/admin-guide/pm/cpuidle.rst
index aec2cd2aaea7..19754beb5a4e 100644
--- a/Documentation/admin-guide/pm/cpuidle.rst
+++ b/Documentation/admin-guide/pm/cpuidle.rst
@@ -612,8 +612,8 @@ the ``menu`` governor to be used on the systems that use the ``ladder`` governor
by default this way, for example.
The other kernel command line parameters controlling CPU idle time management
-described below are only relevant for the *x86* architecture and some of
-them affect Intel processors only.
+described below are only relevant for the *x86* architecture and references
+to ``intel_idle`` affect Intel processors only.
The *x86* architecture support code recognizes three kernel command line
options related to CPU idle time management: ``idle=poll``, ``idle=halt``,
@@ -635,10 +635,13 @@ idle, so it very well may hurt single-thread computations performance as well as
energy-efficiency. Thus using it for performance reasons may not be a good idea
at all.]
-The ``idle=nomwait`` option disables the ``intel_idle`` driver and causes
-``acpi_idle`` to be used (as long as all of the information needed by it is
-there in the system's ACPI tables), but it is not allowed to use the
-``MWAIT`` instruction of the CPUs to ask the hardware to enter idle states.
+The ``idle=nomwait`` option prevents the use of ``MWAIT`` instruction of
+the CPU to enter idle states. When this option is used, the ``acpi_idle``
+driver will use the ``HLT`` instruction instead of ``MWAIT``. On systems
+running Intel processors, this option disables the ``intel_idle`` driver
+and forces the use of the ``acpi_idle`` driver instead. Note that in either
+case, ``acpi_idle`` driver will function only if all the information needed
+by it is in the system's ACPI tables.
In addition to the architecture-level kernel command line options affecting CPU
idle time management, there are parameters affecting individual ``CPUIdle``
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index ddccd1077462..835c8844bba4 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -38,8 +38,8 @@ acct
If BSD-style process accounting is enabled these values control
its behaviour. If free space on filesystem where the log lives
-goes below ``lowwater``% accounting suspends. If free space gets
-above ``highwater``% accounting resumes. ``frequency`` determines
+goes below ``lowwater``\ % accounting suspends. If free space gets
+above ``highwater``\ % accounting resumes. ``frequency`` determines
how often do we check the amount of free space (value is in
seconds). Default:
@@ -592,6 +592,18 @@ to the guest kernel command line (see
Documentation/admin-guide/kernel-parameters.rst).
+nmi_wd_lpm_factor (PPC only)
+============================
+
+Factor to apply to the NMI watchdog timeout (only when ``nmi_watchdog`` is
+set to 1). This factor represents the percentage added to
+``watchdog_thresh`` when calculating the NMI watchdog timeout during an
+LPM. The soft lockup timeout is not impacted.
+
+A value of 0 means no change. The default value is 200 meaning the NMI
+watchdog is set to 30s (based on ``watchdog_thresh`` equal to 10).
+
+
numa_balancing
==============
@@ -623,6 +635,17 @@ different types of memory (represented as different NUMA nodes) to
place the hot pages in the fast memory. This is implemented based on
unmapping and page fault too.
+numa_balancing_promote_rate_limit_MBps
+======================================
+
+Too high promotion/demotion throughput between different memory types
+may hurt application latency. This can be used to rate limit the
+promotion throughput. The per-node max promotion throughput in MB/s
+will be limited to be no more than the set value.
+
+A rule of thumb is to set this to less than 1/10 of the PMEM node
+write bandwidth.
+
oops_all_cpu_backtrace
======================
diff --git a/Documentation/admin-guide/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst
index fcd650bdbc7e..6394f5dc2303 100644
--- a/Documentation/admin-guide/sysctl/net.rst
+++ b/Documentation/admin-guide/sysctl/net.rst
@@ -31,17 +31,18 @@ see only some of them, depending on your kernel's configuration.
Table : Subdirectories in /proc/sys/net
- ========= =================== = ========== ==================
+ ========= =================== = ========== ===================
Directory Content Directory Content
- ========= =================== = ========== ==================
- core General parameter appletalk Appletalk protocol
- unix Unix domain sockets netrom NET/ROM
- 802 E802 protocol ax25 AX25
- ethernet Ethernet protocol rose X.25 PLP layer
+ ========= =================== = ========== ===================
+ 802 E802 protocol mptcp Multipath TCP
+ appletalk Appletalk protocol netfilter Network Filter
+ ax25 AX25 netrom NET/ROM
+ bridge Bridging rose X.25 PLP layer
+ core General parameter tipc TIPC
+ ethernet Ethernet protocol unix Unix domain sockets
ipv4 IP version 4 x25 X.25 protocol
- bridge Bridging decnet DEC net
- ipv6 IP version 6 tipc TIPC
- ========= =================== = ========== ==================
+ ipv6 IP version 6
+ ========= =================== = ========== ===================
1. /proc/sys/net/core - Network core options
============================================
@@ -101,6 +102,9 @@ Values:
- 1 - enable JIT hardening for unprivileged users only
- 2 - enable JIT hardening for all users
+where "privileged user" in this context means a process having
+CAP_BPF or CAP_SYS_ADMIN in the root user name space.
+
bpf_jit_kallsyms
----------------
@@ -271,7 +275,7 @@ poll cycle or the number of packets processed reaches netdev_budget.
netdev_max_backlog
------------------
-Maximum number of packets, queued on the INPUT side, when the interface
+Maximum number of packets, queued on the INPUT side, when the interface
receives packets faster than kernel can process them.
netdev_rss_key
@@ -391,6 +395,18 @@ GRO has decided not to coalesce, it is placed on a per-NAPI list. This
list is then passed to the stack when the number of segments reaches the
gro_normal_batch limit.
+high_order_alloc_disable
+------------------------
+
+By default the allocator for page frags tries to use high order pages (order-3
+on x86). While the default behavior gives good results in most cases, some users
+might have hit a contention in page allocations/freeing. This was especially
+true on older kernels (< 5.14) when high-order pages were not stored on per-cpu
+lists. This allows to opt-in for order-0 allocation instead but is now mostly of
+historical importance.
+
+Default: 0
+
2. /proc/sys/net/unix - Parameters for Unix domain sockets
----------------------------------------------------------
diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst
index 5c9aa171a0d3..988f6a4c8084 100644
--- a/Documentation/admin-guide/sysctl/vm.rst
+++ b/Documentation/admin-guide/sysctl/vm.rst
@@ -565,13 +565,11 @@ See Documentation/admin-guide/mm/hugetlbpage.rst
hugetlb_optimize_vmemmap
========================
-This knob is not available when memory_hotplug.memmap_on_memory (kernel parameter)
-is configured or the size of 'struct page' (a structure defined in
-include/linux/mm_types.h) is not power of two (an unusual system config could
+This knob is not available when the size of 'struct page' (a structure defined
+in include/linux/mm_types.h) is not power of two (an unusual system config could
result in this).
-Enable (set to 1) or disable (set to 0) the feature of optimizing vmemmap pages
-associated with each HugeTLB page.
+Enable (set to 1) or disable (set to 0) HugeTLB Vmemmap Optimization (HVO).
Once enabled, the vmemmap pages of subsequent allocation of HugeTLB pages from
buddy allocator will be optimized (7 pages per 2MB HugeTLB page and 4095 pages
@@ -760,7 +758,7 @@ and don't use much of it.
The default value is 0.
-See Documentation/vm/overcommit-accounting.rst and
+See Documentation/mm/overcommit-accounting.rst and
mm/util.c::__vm_enough_memory() for more information.
@@ -928,6 +926,9 @@ calls without any restrictions.
The default value is 0.
+Another way to control permissions for userfaultfd is to use
+/dev/userfaultfd instead of userfaultfd(2). See
+Documentation/admin-guide/mm/userfaultfd.rst.
user_reserve_kbytes
===================
diff --git a/Documentation/admin-guide/tainted-kernels.rst b/Documentation/admin-guide/tainted-kernels.rst
index ceeed7b0798d..92a8a07f5c43 100644
--- a/Documentation/admin-guide/tainted-kernels.rst
+++ b/Documentation/admin-guide/tainted-kernels.rst
@@ -100,6 +100,7 @@ Bit Log Number Reason that got the kernel tainted
15 _/K 32768 kernel has been live patched
16 _/X 65536 auxiliary taint, defined for and used by distros
17 _/T 131072 kernel was built with the struct randomization plugin
+ 18 _/N 262144 an in-kernel test has been run
=== === ====== ========================================================
Note: The character ``_`` is representing a blank in this table to make reading
@@ -133,6 +134,12 @@ More detailed explanation for tainting
scsi/snic on something else than x86_64, scsi/ips on non
x86/x86_64/itanium, have broken firmware settings for the
irqchip/irq-gic on arm64 ...).
+ - x86/x86_64: Microcode late loading is dangerous and will result in
+ tainting the kernel. It requires that all CPUs rendezvous to make sure
+ the update happens when the system is as quiescent as possible. However,
+ a higher priority MCE/SMI/NMI can move control flow away from that
+ rendezvous and interrupt the update, which can be detrimental to the
+ machine.
3) ``R`` if a module was force unloaded by ``rmmod -f``, ``' '`` if all
modules were unloaded normally.
diff --git a/Documentation/arm/google/chromebook-boot-flow.rst b/Documentation/arm/google/chromebook-boot-flow.rst
new file mode 100644
index 000000000000..36da77684bba
--- /dev/null
+++ b/Documentation/arm/google/chromebook-boot-flow.rst
@@ -0,0 +1,69 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================================
+Chromebook Boot Flow
+======================================
+
+Most recent Chromebooks that use device tree are using the opensource
+depthcharge_ bootloader. Depthcharge_ expects the OS to be packaged as a `FIT
+Image`_ which contains an OS image as well as a collection of device trees. It
+is up to depthcharge_ to pick the right device tree from the `FIT Image`_ and
+provide it to the OS.
+
+The scheme that depthcharge_ uses to pick the device tree takes into account
+three variables:
+
+- Board name, specified at depthcharge_ compile time. This is $(BOARD) below.
+- Board revision number, determined at runtime (perhaps by reading GPIO
+ strappings, perhaps via some other method). This is $(REV) below.
+- SKU number, read from GPIO strappings at boot time. This is $(SKU) below.
+
+For recent Chromebooks, depthcharge_ creates a match list that looks like this:
+
+- google,$(BOARD)-rev$(REV)-sku$(SKU)
+- google,$(BOARD)-rev$(REV)
+- google,$(BOARD)-sku$(SKU)
+- google,$(BOARD)
+
+Note that some older Chromebooks use a slightly different list that may
+not include SKU matching or may prioritize SKU/rev differently.
+
+Note that for some boards there may be extra board-specific logic to inject
+extra compatibles into the list, but this is uncommon.
+
+Depthcharge_ will look through all device trees in the `FIT Image`_ trying to
+find one that matches the most specific compatible. It will then look
+through all device trees in the `FIT Image`_ trying to find the one that
+matches the *second most* specific compatible, etc.
+
+When searching for a device tree, depthcharge_ doesn't care where the
+compatible string falls within a device tree's root compatible string array.
+As an example, if we're on board "lazor", rev 4, SKU 0 and we have two device
+trees:
+
+- "google,lazor-rev5-sku0", "google,lazor-rev4-sku0", "qcom,sc7180"
+- "google,lazor", "qcom,sc7180"
+
+Then depthcharge_ will pick the first device tree even though
+"google,lazor-rev4-sku0" was the second compatible listed in that device tree.
+This is because it is a more specific compatible than "google,lazor".
+
+It should be noted that depthcharge_ does not have any smarts to try to
+match board or SKU revisions that are "close by". That is to say that
+if depthcharge_ knows it's on "rev4" of a board but there is no "rev4"
+device tree then depthcharge_ *won't* look for a "rev3" device tree.
+
+In general when any significant changes are made to a board the board
+revision number is increased even if none of those changes need to
+be reflected in the device tree. Thus it's fairly common to see device
+trees with multiple revisions.
+
+It should be noted that, taking into account the above system that
+depthcharge_ has, the most flexibility is achieved if the device tree
+supporting the newest revision(s) of a board omits the "-rev{REV}"
+compatible strings. When this is done then if you get a new board
+revision and try to run old software on it then we'll at pick the
+newest device tree we know about.
+
+.. _depthcharge: https://source.chromium.org/chromiumos/chromiumos/codesearch/+/main:src/platform/depthcharge/
+.. _`FIT Image`: https://doc.coreboot.org/lib/payloads/fit.html
diff --git a/Documentation/arm/index.rst b/Documentation/arm/index.rst
index 2bda5461a80b..8c636d4a061f 100644
--- a/Documentation/arm/index.rst
+++ b/Documentation/arm/index.rst
@@ -31,6 +31,8 @@ SoC-specific documents
.. toctree::
:maxdepth: 1
+ google/chromebook-boot-flow
+
ixp4xx
marvell
@@ -57,6 +59,7 @@ SoC-specific documents
stm32/stm32f429-overview
stm32/stm32mp13-overview
stm32/stm32mp157-overview
+ stm32/stm32-dma-mdma-chaining
sunxi
diff --git a/Documentation/arm/samsung-s3c24xx/cpufreq.rst b/Documentation/arm/samsung-s3c24xx/cpufreq.rst
index 2ddc26c03b1f..cd22697cf606 100644
--- a/Documentation/arm/samsung-s3c24xx/cpufreq.rst
+++ b/Documentation/arm/samsung-s3c24xx/cpufreq.rst
@@ -1,3 +1,5 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
=======================
S3C24XX CPUfreq support
=======================
@@ -73,4 +75,3 @@ Document Author
---------------
Ben Dooks, Copyright 2009 Simtec Electronics
-Licensed under GPLv2
diff --git a/Documentation/arm/stm32/stm32-dma-mdma-chaining.rst b/Documentation/arm/stm32/stm32-dma-mdma-chaining.rst
new file mode 100644
index 000000000000..2945e0e33104
--- /dev/null
+++ b/Documentation/arm/stm32/stm32-dma-mdma-chaining.rst
@@ -0,0 +1,415 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=======================
+STM32 DMA-MDMA chaining
+=======================
+
+
+Introduction
+------------
+
+ This document describes the STM32 DMA-MDMA chaining feature. But before going
+ further, let's introduce the peripherals involved.
+
+ To offload data transfers from the CPU, STM32 microprocessors (MPUs) embed
+ direct memory access controllers (DMA).
+
+ STM32MP1 SoCs embed both STM32 DMA and STM32 MDMA controllers. STM32 DMA
+ request routing capabilities are enhanced by a DMA request multiplexer
+ (STM32 DMAMUX).
+
+ **STM32 DMAMUX**
+
+ STM32 DMAMUX routes any DMA request from a given peripheral to any STM32 DMA
+ controller (STM32MP1 counts two STM32 DMA controllers) channels.
+
+ **STM32 DMA**
+
+ STM32 DMA is mainly used to implement central data buffer storage (usually in
+ the system SRAM) for different peripheral. It can access external RAMs but
+ without the ability to generate convenient burst transfer ensuring the best
+ load of the AXI.
+
+ **STM32 MDMA**
+
+ STM32 MDMA (Master DMA) is mainly used to manage direct data transfers between
+ RAM data buffers without CPU intervention. It can also be used in a
+ hierarchical structure that uses STM32 DMA as first level data buffer
+ interfaces for AHB peripherals, while the STM32 MDMA acts as a second level
+ DMA with better performance. As a AXI/AHB master, STM32 MDMA can take control
+ of the AXI/AHB bus.
+
+
+Principles
+----------
+
+ STM32 DMA-MDMA chaining feature relies on the strengths of STM32 DMA and
+ STM32 MDMA controllers.
+
+ STM32 DMA has a circular Double Buffer Mode (DBM). At each end of transaction
+ (when DMA data counter - DMA_SxNDTR - reaches 0), the memory pointers
+ (configured with DMA_SxSM0AR and DMA_SxM1AR) are swapped and the DMA data
+ counter is automatically reloaded. This allows the SW or the STM32 MDMA to
+ process one memory area while the second memory area is being filled/used by
+ the STM32 DMA transfer.
+
+ With STM32 MDMA linked-list mode, a single request initiates the data array
+ (collection of nodes) to be transferred until the linked-list pointer for the
+ channel is null. The channel transfer complete of the last node is the end of
+ transfer, unless first and last nodes are linked to each other, in such a
+ case, the linked-list loops on to create a circular MDMA transfer.
+
+ STM32 MDMA has direct connections with STM32 DMA. This enables autonomous
+ communication and synchronization between peripherals, thus saving CPU
+ resources and bus congestion. Transfer Complete signal of STM32 DMA channel
+ can triggers STM32 MDMA transfer. STM32 MDMA can clear the request generated
+ by the STM32 DMA by writing to its Interrupt Clear register (whose address is
+ stored in MDMA_CxMAR, and bit mask in MDMA_CxMDR).
+
+ .. table:: STM32 MDMA interconnect table with STM32 DMA
+
+ +--------------+----------------+-----------+------------+
+ | STM32 DMAMUX | STM32 DMA | STM32 DMA | STM32 MDMA |
+ | channels | channels | Transfer | request |
+ | | | complete | |
+ | | | signal | |
+ +==============+================+===========+============+
+ | Channel *0* | DMA1 channel 0 | dma1_tcf0 | *0x00* |
+ +--------------+----------------+-----------+------------+
+ | Channel *1* | DMA1 channel 1 | dma1_tcf1 | *0x01* |
+ +--------------+----------------+-----------+------------+
+ | Channel *2* | DMA1 channel 2 | dma1_tcf2 | *0x02* |
+ +--------------+----------------+-----------+------------+
+ | Channel *3* | DMA1 channel 3 | dma1_tcf3 | *0x03* |
+ +--------------+----------------+-----------+------------+
+ | Channel *4* | DMA1 channel 4 | dma1_tcf4 | *0x04* |
+ +--------------+----------------+-----------+------------+
+ | Channel *5* | DMA1 channel 5 | dma1_tcf5 | *0x05* |
+ +--------------+----------------+-----------+------------+
+ | Channel *6* | DMA1 channel 6 | dma1_tcf6 | *0x06* |
+ +--------------+----------------+-----------+------------+
+ | Channel *7* | DMA1 channel 7 | dma1_tcf7 | *0x07* |
+ +--------------+----------------+-----------+------------+
+ | Channel *8* | DMA2 channel 0 | dma2_tcf0 | *0x08* |
+ +--------------+----------------+-----------+------------+
+ | Channel *9* | DMA2 channel 1 | dma2_tcf1 | *0x09* |
+ +--------------+----------------+-----------+------------+
+ | Channel *10* | DMA2 channel 2 | dma2_tcf2 | *0x0A* |
+ +--------------+----------------+-----------+------------+
+ | Channel *11* | DMA2 channel 3 | dma2_tcf3 | *0x0B* |
+ +--------------+----------------+-----------+------------+
+ | Channel *12* | DMA2 channel 4 | dma2_tcf4 | *0x0C* |
+ +--------------+----------------+-----------+------------+
+ | Channel *13* | DMA2 channel 5 | dma2_tcf5 | *0x0D* |
+ +--------------+----------------+-----------+------------+
+ | Channel *14* | DMA2 channel 6 | dma2_tcf6 | *0x0E* |
+ +--------------+----------------+-----------+------------+
+ | Channel *15* | DMA2 channel 7 | dma2_tcf7 | *0x0F* |
+ +--------------+----------------+-----------+------------+
+
+ STM32 DMA-MDMA chaining feature then uses a SRAM buffer. STM32MP1 SoCs embed
+ three fast access static internal RAMs of various size, used for data storage.
+ Due to STM32 DMA legacy (within microcontrollers), STM32 DMA performances are
+ bad with DDR, while they are optimal with SRAM. Hence the SRAM buffer used
+ between STM32 DMA and STM32 MDMA. This buffer is split in two equal periods
+ and STM32 DMA uses one period while STM32 MDMA uses the other period
+ simultaneously.
+ ::
+
+ dma[1:2]-tcf[0:7]
+ .----------------.
+ ____________ ' _________ V____________
+ | STM32 DMA | / __|>_ \ | STM32 MDMA |
+ |------------| | / \ | |------------|
+ | DMA_SxM0AR |<=>| | SRAM | |<=>| []-[]...[] |
+ | DMA_SxM1AR | | \_____/ | | |
+ |____________| \___<|____/ |____________|
+
+ STM32 DMA-MDMA chaining uses (struct dma_slave_config).peripheral_config to
+ exchange the parameters needed to configure MDMA. These parameters are
+ gathered into a u32 array with three values:
+
+ * the STM32 MDMA request (which is actually the DMAMUX channel ID),
+ * the address of the STM32 DMA register to clear the Transfer Complete
+ interrupt flag,
+ * the mask of the Transfer Complete interrupt flag of the STM32 DMA channel.
+
+Device Tree updates for STM32 DMA-MDMA chaining support
+-------------------------------------------------------
+
+ **1. Allocate a SRAM buffer**
+
+ SRAM device tree node is defined in SoC device tree. You can refer to it in
+ your board device tree to define your SRAM pool.
+ ::
+
+ &sram {
+ my_foo_device_dma_pool: dma-sram@0 {
+ reg = <0x0 0x1000>;
+ };
+ };
+
+ Be careful of the start index, in case there are other SRAM consumers.
+ Define your pool size strategically: to optimise chaining, the idea is that
+ STM32 DMA and STM32 MDMA can work simultaneously, on each buffer of the
+ SRAM.
+ If the SRAM period is greater than the expected DMA transfer, then STM32 DMA
+ and STM32 MDMA will work sequentially instead of simultaneously. It is not a
+ functional issue but it is not optimal.
+
+ Don't forget to refer to your SRAM pool in your device node. You need to
+ define a new property.
+ ::
+
+ &my_foo_device {
+ ...
+ my_dma_pool = &my_foo_device_dma_pool;
+ };
+
+ Then get this SRAM pool in your foo driver and allocate your SRAM buffer.
+
+ **2. Allocate a STM32 DMA channel and a STM32 MDMA channel**
+
+ You need to define an extra channel in your device tree node, in addition to
+ the one you should already have for "classic" DMA operation.
+
+ This new channel must be taken from STM32 MDMA channels, so, the phandle of
+ the DMA controller to use is the MDMA controller's one.
+ ::
+
+ &my_foo_device {
+ [...]
+ my_dma_pool = &my_foo_device_dma_pool;
+ dmas = <&dmamux1 ...>, // STM32 DMA channel
+ <&mdma1 0 0x3 0x1200000a 0 0>; // + STM32 MDMA channel
+ };
+
+ Concerning STM32 MDMA bindings:
+
+ 1. The request line number : whatever the value here, it will be overwritten
+ by MDMA driver with the STM32 DMAMUX channel ID passed through
+ (struct dma_slave_config).peripheral_config
+
+ 2. The priority level : choose Very High (0x3) so that your channel will
+ take priority other the other during request arbitration
+
+ 3. A 32bit mask specifying the DMA channel configuration : source and
+ destination address increment, block transfer with 128 bytes per single
+ transfer
+
+ 4. The 32bit value specifying the register to be used to acknowledge the
+ request: it will be overwritten by MDMA driver, with the DMA channel
+ interrupt flag clear register address passed through
+ (struct dma_slave_config).peripheral_config
+
+ 5. The 32bit mask specifying the value to be written to acknowledge the
+ request: it will be overwritten by MDMA driver, with the DMA channel
+ Transfer Complete flag passed through
+ (struct dma_slave_config).peripheral_config
+
+Driver updates for STM32 DMA-MDMA chaining support in foo driver
+----------------------------------------------------------------
+
+ **0. (optional) Refactor the original sg_table if dmaengine_prep_slave_sg()**
+
+ In case of dmaengine_prep_slave_sg(), the original sg_table can't be used as
+ is. Two new sg_tables must be created from the original one. One for
+ STM32 DMA transfer (where memory address targets now the SRAM buffer instead
+ of DDR buffer) and one for STM32 MDMA transfer (where memory address targets
+ the DDR buffer).
+
+ The new sg_list items must fit SRAM period length. Here is an example for
+ DMA_DEV_TO_MEM:
+ ::
+
+ /*
+ * Assuming sgl and nents, respectively the initial scatterlist and its
+ * length.
+ * Assuming sram_dma_buf and sram_period, respectively the memory
+ * allocated from the pool for DMA usage, and the length of the period,
+ * which is half of the sram_buf size.
+ */
+ struct sg_table new_dma_sgt, new_mdma_sgt;
+ struct scatterlist *s, *_sgl;
+ dma_addr_t ddr_dma_buf;
+ u32 new_nents = 0, len;
+ int i;
+
+ /* Count the number of entries needed */
+ for_each_sg(sgl, s, nents, i)
+ if (sg_dma_len(s) > sram_period)
+ new_nents += DIV_ROUND_UP(sg_dma_len(s), sram_period);
+ else
+ new_nents++;
+
+ /* Create sg table for STM32 DMA channel */
+ ret = sg_alloc_table(&new_dma_sgt, new_nents, GFP_ATOMIC);
+ if (ret)
+ dev_err(dev, "DMA sg table alloc failed\n");
+
+ for_each_sg(new_dma_sgt.sgl, s, new_dma_sgt.nents, i) {
+ _sgl = sgl;
+ sg_dma_len(s) = min(sg_dma_len(_sgl), sram_period);
+ /* Targets the beginning = first half of the sram_buf */
+ s->dma_address = sram_buf;
+ /*
+ * Targets the second half of the sram_buf
+ * for odd indexes of the item of the sg_list
+ */
+ if (i & 1)
+ s->dma_address += sram_period;
+ }
+
+ /* Create sg table for STM32 MDMA channel */
+ ret = sg_alloc_table(&new_mdma_sgt, new_nents, GFP_ATOMIC);
+ if (ret)
+ dev_err(dev, "MDMA sg_table alloc failed\n");
+
+ _sgl = sgl;
+ len = sg_dma_len(sgl);
+ ddr_dma_buf = sg_dma_address(sgl);
+ for_each_sg(mdma_sgt.sgl, s, mdma_sgt.nents, i) {
+ size_t bytes = min_t(size_t, len, sram_period);
+
+ sg_dma_len(s) = bytes;
+ sg_dma_address(s) = ddr_dma_buf;
+ len -= bytes;
+
+ if (!len && sg_next(_sgl)) {
+ _sgl = sg_next(_sgl);
+ len = sg_dma_len(_sgl);
+ ddr_dma_buf = sg_dma_address(_sgl);
+ } else {
+ ddr_dma_buf += bytes;
+ }
+ }
+
+ Don't forget to release these new sg_tables after getting the descriptors
+ with dmaengine_prep_slave_sg().
+
+ **1. Set controller specific parameters**
+
+ First, use dmaengine_slave_config() with a struct dma_slave_config to
+ configure STM32 DMA channel. You just have to take care of DMA addresses,
+ the memory address (depending on the transfer direction) must point on your
+ SRAM buffer, and set (struct dma_slave_config).peripheral_size != 0.
+
+ STM32 DMA driver will check (struct dma_slave_config).peripheral_size to
+ determine if chaining is being used or not. If it is used, then STM32 DMA
+ driver fills (struct dma_slave_config).peripheral_config with an array of
+ three u32 : the first one containing STM32 DMAMUX channel ID, the second one
+ the channel interrupt flag clear register address, and the third one the
+ channel Transfer Complete flag mask.
+
+ Then, use dmaengine_slave_config with another struct dma_slave_config to
+ configure STM32 MDMA channel. Take care of DMA addresses, the device address
+ (depending on the transfer direction) must point on your SRAM buffer, and
+ the memory address must point to the buffer originally used for "classic"
+ DMA operation. Use the previous (struct dma_slave_config).peripheral_size
+ and .peripheral_config that have been updated by STM32 DMA driver, to set
+ (struct dma_slave_config).peripheral_size and .peripheral_config of the
+ struct dma_slave_config to configure STM32 MDMA channel.
+ ::
+
+ struct dma_slave_config dma_conf;
+ struct dma_slave_config mdma_conf;
+
+ memset(&dma_conf, 0, sizeof(dma_conf));
+ [...]
+ config.direction = DMA_DEV_TO_MEM;
+ config.dst_addr = sram_dma_buf; // SRAM buffer
+ config.peripheral_size = 1; // peripheral_size != 0 => chaining
+
+ dmaengine_slave_config(dma_chan, &dma_config);
+
+ memset(&mdma_conf, 0, sizeof(mdma_conf));
+ config.direction = DMA_DEV_TO_MEM;
+ mdma_conf.src_addr = sram_dma_buf; // SRAM buffer
+ mdma_conf.dst_addr = rx_dma_buf; // original memory buffer
+ mdma_conf.peripheral_size = dma_conf.peripheral_size; // <- dma_conf
+ mdma_conf.peripheral_config = dma_config.peripheral_config; // <- dma_conf
+
+ dmaengine_slave_config(mdma_chan, &mdma_conf);
+
+ **2. Get a descriptor for STM32 DMA channel transaction**
+
+ In the same way you get your descriptor for your "classic" DMA operation,
+ you just have to replace the original sg_list (in case of
+ dmaengine_prep_slave_sg()) with the new sg_list using SRAM buffer, or to
+ replace the original buffer address, length and period (in case of
+ dmaengine_prep_dma_cyclic()) with the new SRAM buffer.
+
+ **3. Get a descriptor for STM32 MDMA channel transaction**
+
+ If you previously get descriptor (for STM32 DMA) with
+
+ * dmaengine_prep_slave_sg(), then use dmaengine_prep_slave_sg() for
+ STM32 MDMA;
+ * dmaengine_prep_dma_cyclic(), then use dmaengine_prep_dma_cyclic() for
+ STM32 MDMA.
+
+ Use the new sg_list using SRAM buffer (in case of dmaengine_prep_slave_sg())
+ or, depending on the transfer direction, either the original DDR buffer (in
+ case of DMA_DEV_TO_MEM) or the SRAM buffer (in case of DMA_MEM_TO_DEV), the
+ source address being previously set with dmaengine_slave_config().
+
+ **4. Submit both transactions**
+
+ Before submitting your transactions, you may need to define on which
+ descriptor you want a callback to be called at the end of the transfer
+ (dmaengine_prep_slave_sg()) or the period (dmaengine_prep_dma_cyclic()).
+ Depending on the direction, set the callback on the descriptor that finishes
+ the overal transfer:
+
+ * DMA_DEV_TO_MEM: set the callback on the "MDMA" descriptor
+ * DMA_MEM_TO_DEV: set the callback on the "DMA" descriptor
+
+ Then, submit the descriptors whatever the order, with dmaengine_tx_submit().
+
+ **5. Issue pending requests (and wait for callback notification)**
+
+ As STM32 MDMA channel transfer is triggered by STM32 DMA, you must issue
+ STM32 MDMA channel before STM32 DMA channel.
+
+ If any, your callback will be called to warn you about the end of the overal
+ transfer or the period completion.
+
+ Don't forget to terminate both channels. STM32 DMA channel is configured in
+ cyclic Double-Buffer mode so it won't be disabled by HW, you need to terminate
+ it. STM32 MDMA channel will be stopped by HW in case of sg transfer, but not
+ in case of cyclic transfer. You can terminate it whatever the kind of transfer.
+
+ **STM32 DMA-MDMA chaining DMA_MEM_TO_DEV special case**
+
+ STM32 DMA-MDMA chaining in DMA_MEM_TO_DEV is a special case. Indeed, the
+ STM32 MDMA feeds the SRAM buffer with the DDR data, and the STM32 DMA reads
+ data from SRAM buffer. So some data (the first period) have to be copied in
+ SRAM buffer when the STM32 DMA starts to read.
+
+ A trick could be pausing the STM32 DMA channel (that will raise a Transfer
+ Complete signal, triggering the STM32 MDMA channel), but the first data read
+ by the STM32 DMA could be "wrong". The proper way is to prepare the first SRAM
+ period with dmaengine_prep_dma_memcpy(). Then this first period should be
+ "removed" from the sg or the cyclic transfer.
+
+ Due to this complexity, rather use the STM32 DMA-MDMA chaining for
+ DMA_DEV_TO_MEM and keep the "classic" DMA usage for DMA_MEM_TO_DEV, unless
+ you're not afraid.
+
+Resources
+---------
+
+ Application note, datasheet and reference manual are available on ST website
+ (STM32MP1_).
+
+ Dedicated focus on three application notes (AN5224_, AN4031_ & AN5001_)
+ dealing with STM32 DMAMUX, STM32 DMA and STM32 MDMA.
+
+.. _STM32MP1: https://www.st.com/en/microcontrollers-microprocessors/stm32mp1-series.html
+.. _AN5224: https://www.st.com/resource/en/application_note/an5224-stm32-dmamux-the-dma-request-router-stmicroelectronics.pdf
+.. _AN4031: https://www.st.com/resource/en/application_note/dm00046011-using-the-stm32f2-stm32f4-and-stm32f7-series-dma-controller-stmicroelectronics.pdf
+.. _AN5001: https://www.st.com/resource/en/application_note/an5001-stm32cube-expansion-package-for-stm32h7-series-mdma-stmicroelectronics.pdf
+
+:Authors:
+
+- Amelie Delaunay <amelie.delaunay@foss.st.com> \ No newline at end of file
diff --git a/Documentation/arm/uefi.rst b/Documentation/arm/uefi.rst
index 9b0b5e458a1e..baebe688a006 100644
--- a/Documentation/arm/uefi.rst
+++ b/Documentation/arm/uefi.rst
@@ -65,10 +65,6 @@ linux,uefi-mmap-desc-size 32-bit Size in bytes of each entry in the UEFI
linux,uefi-mmap-desc-ver 32-bit Version of the mmap descriptor format.
-linux,initrd-start 64-bit Physical start address of an initrd
-
-linux,initrd-end 64-bit Physical end address of an initrd
-
kaslr-seed 64-bit Entropy used to randomize the kernel image
base address location.
========================== ====== ===========================================
diff --git a/Documentation/arm64/elf_hwcaps.rst b/Documentation/arm64/elf_hwcaps.rst
index 3d116fb536c5..bb34287c8e01 100644
--- a/Documentation/arm64/elf_hwcaps.rst
+++ b/Documentation/arm64/elf_hwcaps.rst
@@ -171,136 +171,110 @@ HWCAP_PACG
Documentation/arm64/pointer-authentication.rst.
HWCAP2_DCPODP
-
Functionality implied by ID_AA64ISAR1_EL1.DPB == 0b0010.
HWCAP2_SVE2
-
Functionality implied by ID_AA64ZFR0_EL1.SVEVer == 0b0001.
HWCAP2_SVEAES
-
Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0001.
HWCAP2_SVEPMULL
-
Functionality implied by ID_AA64ZFR0_EL1.AES == 0b0010.
HWCAP2_SVEBITPERM
-
Functionality implied by ID_AA64ZFR0_EL1.BitPerm == 0b0001.
HWCAP2_SVESHA3
-
Functionality implied by ID_AA64ZFR0_EL1.SHA3 == 0b0001.
HWCAP2_SVESM4
-
Functionality implied by ID_AA64ZFR0_EL1.SM4 == 0b0001.
HWCAP2_FLAGM2
-
Functionality implied by ID_AA64ISAR0_EL1.TS == 0b0010.
HWCAP2_FRINT
-
Functionality implied by ID_AA64ISAR1_EL1.FRINTTS == 0b0001.
HWCAP2_SVEI8MM
-
Functionality implied by ID_AA64ZFR0_EL1.I8MM == 0b0001.
HWCAP2_SVEF32MM
-
Functionality implied by ID_AA64ZFR0_EL1.F32MM == 0b0001.
HWCAP2_SVEF64MM
-
Functionality implied by ID_AA64ZFR0_EL1.F64MM == 0b0001.
HWCAP2_SVEBF16
-
Functionality implied by ID_AA64ZFR0_EL1.BF16 == 0b0001.
HWCAP2_I8MM
-
Functionality implied by ID_AA64ISAR1_EL1.I8MM == 0b0001.
HWCAP2_BF16
-
Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0001.
HWCAP2_DGH
-
Functionality implied by ID_AA64ISAR1_EL1.DGH == 0b0001.
HWCAP2_RNG
-
Functionality implied by ID_AA64ISAR0_EL1.RNDR == 0b0001.
HWCAP2_BTI
-
Functionality implied by ID_AA64PFR0_EL1.BT == 0b0001.
HWCAP2_MTE
-
Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0010, as described
by Documentation/arm64/memory-tagging-extension.rst.
HWCAP2_ECV
-
Functionality implied by ID_AA64MMFR0_EL1.ECV == 0b0001.
HWCAP2_AFP
-
Functionality implied by ID_AA64MFR1_EL1.AFP == 0b0001.
HWCAP2_RPRES
-
Functionality implied by ID_AA64ISAR2_EL1.RPRES == 0b0001.
HWCAP2_MTE3
-
Functionality implied by ID_AA64PFR1_EL1.MTE == 0b0011, as described
by Documentation/arm64/memory-tagging-extension.rst.
HWCAP2_SME
-
Functionality implied by ID_AA64PFR1_EL1.SME == 0b0001, as described
by Documentation/arm64/sme.rst.
HWCAP2_SME_I16I64
-
Functionality implied by ID_AA64SMFR0_EL1.I16I64 == 0b1111.
HWCAP2_SME_F64F64
-
Functionality implied by ID_AA64SMFR0_EL1.F64F64 == 0b1.
HWCAP2_SME_I8I32
-
Functionality implied by ID_AA64SMFR0_EL1.I8I32 == 0b1111.
HWCAP2_SME_F16F32
-
Functionality implied by ID_AA64SMFR0_EL1.F16F32 == 0b1.
HWCAP2_SME_B16F32
-
Functionality implied by ID_AA64SMFR0_EL1.B16F32 == 0b1.
HWCAP2_SME_F32F32
-
Functionality implied by ID_AA64SMFR0_EL1.F32F32 == 0b1.
HWCAP2_SME_FA64
-
Functionality implied by ID_AA64SMFR0_EL1.FA64 == 0b1.
HWCAP2_WFXT
-
Functionality implied by ID_AA64ISAR2_EL1.WFXT == 0b0010.
+HWCAP2_EBF16
+ Functionality implied by ID_AA64ISAR1_EL1.BF16 == 0b0010.
+
+HWCAP2_SVE_EBF16
+ Functionality implied by ID_AA64ZFR0_EL1.BF16 == 0b0010.
+
4. Unused AT_HWCAP bits
-----------------------
diff --git a/Documentation/arm64/memory.rst b/Documentation/arm64/memory.rst
index 901cd094f4ec..2a641ba7be3b 100644
--- a/Documentation/arm64/memory.rst
+++ b/Documentation/arm64/memory.rst
@@ -33,9 +33,8 @@ AArch64 Linux memory layout with 4KB pages + 4 levels (48-bit)::
0000000000000000 0000ffffffffffff 256TB user
ffff000000000000 ffff7fffffffffff 128TB kernel logical memory map
[ffff600000000000 ffff7fffffffffff] 32TB [kasan shadow region]
- ffff800000000000 ffff800007ffffff 128MB bpf jit region
- ffff800008000000 ffff80000fffffff 128MB modules
- ffff800010000000 fffffbffefffffff 124TB vmalloc
+ ffff800000000000 ffff800007ffffff 128MB modules
+ ffff800008000000 fffffbffefffffff 124TB vmalloc
fffffbfff0000000 fffffbfffdffffff 224MB fixed mappings (top down)
fffffbfffe000000 fffffbfffe7fffff 8MB [guard region]
fffffbfffe800000 fffffbffff7fffff 16MB PCI I/O space
@@ -51,9 +50,8 @@ AArch64 Linux memory layout with 64KB pages + 3 levels (52-bit with HW support):
0000000000000000 000fffffffffffff 4PB user
fff0000000000000 ffff7fffffffffff ~4PB kernel logical memory map
[fffd800000000000 ffff7fffffffffff] 512TB [kasan shadow region]
- ffff800000000000 ffff800007ffffff 128MB bpf jit region
- ffff800008000000 ffff80000fffffff 128MB modules
- ffff800010000000 fffffbffefffffff 124TB vmalloc
+ ffff800000000000 ffff800007ffffff 128MB modules
+ ffff800008000000 fffffbffefffffff 124TB vmalloc
fffffbfff0000000 fffffbfffdffffff 224MB fixed mappings (top down)
fffffbfffe000000 fffffbfffe7fffff 8MB [guard region]
fffffbfffe800000 fffffbffff7fffff 16MB PCI I/O space
diff --git a/Documentation/arm64/silicon-errata.rst b/Documentation/arm64/silicon-errata.rst
index d27db84d585e..17d9fc5d14fb 100644
--- a/Documentation/arm64/silicon-errata.rst
+++ b/Documentation/arm64/silicon-errata.rst
@@ -52,6 +52,8 @@ stable kernels.
| Allwinner | A64/R18 | UNKNOWN1 | SUN50I_ERRATUM_UNKNOWN1 |
+----------------+-----------------+-----------------+-----------------------------+
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2457168 | ARM64_ERRATUM_2457168 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2064142 | ARM64_ERRATUM_2064142 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2038923 | ARM64_ERRATUM_2038923 |
@@ -82,10 +84,14 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A57 | #1319537 | ARM64_ERRATUM_1319367 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A57 | #1742098 | ARM64_ERRATUM_1742098 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A72 | #853709 | N/A |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A72 | #1319367 | ARM64_ERRATUM_1319367 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A72 | #1655431 | ARM64_ERRATUM_1742098 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A76 | #1188873,1418040| ARM64_ERRATUM_1418040 |
@@ -102,6 +108,10 @@ stable kernels.
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A510 | #2077057 | ARM64_ERRATUM_2077057 |
+----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2441009 | ARM64_ERRATUM_2441009 |
++----------------+-----------------+-----------------+-----------------------------+
+| ARM | Cortex-A510 | #2658417 | ARM64_ERRATUM_2658417 |
++----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2119858 | ARM64_ERRATUM_2119858 |
+----------------+-----------------+-----------------+-----------------------------+
| ARM | Cortex-A710 | #2054223 | ARM64_ERRATUM_2054223 |
diff --git a/Documentation/arm64/sme.rst b/Documentation/arm64/sme.rst
index 937147f58cc5..16d2db4c2e2e 100644
--- a/Documentation/arm64/sme.rst
+++ b/Documentation/arm64/sme.rst
@@ -331,6 +331,9 @@ The regset data starts with struct user_za_header, containing:
been read if a PTRACE_GETREGSET of NT_ARM_ZA were executed for each thread
when the coredump was generated.
+* The NT_ARM_TLS note will be extended to two registers, the second register
+ will contain TPIDR2_EL0 on systems that support SME and will be read as
+ zero with writes ignored otherwise.
9. System runtime configuration
--------------------------------
diff --git a/Documentation/arm64/sve.rst b/Documentation/arm64/sve.rst
index 93c2c2990584..f338ee2df46d 100644
--- a/Documentation/arm64/sve.rst
+++ b/Documentation/arm64/sve.rst
@@ -111,7 +111,7 @@ the SVE instruction set architecture.
* On syscall, V0..V31 are preserved (as without SVE). Thus, bits [127:0] of
Z0..Z31 are preserved. All other bits of Z0..Z31, and all of P0..P15 and FFR
- become unspecified on return from a syscall.
+ become zero on return from a syscall.
* The SVE registers are not used to pass arguments to or receive results from
any syscall.
@@ -452,6 +452,24 @@ The regset data starts with struct user_sve_header, containing:
* Modifying the system default vector length does not affect the vector length
of any existing process or thread that does not make an execve() call.
+10. Perf extensions
+--------------------------------
+
+* The arm64 specific DWARF standard [5] added the VG (Vector Granule) register
+ at index 46. This register is used for DWARF unwinding when variable length
+ SVE registers are pushed onto the stack.
+
+* Its value is equivalent to the current SVE vector length (VL) in bits divided
+ by 64.
+
+* The value is included in Perf samples in the regs[46] field if
+ PERF_SAMPLE_REGS_USER is set and the sample_regs_user mask has bit 46 set.
+
+* The value is the current value at the time the sample was taken, and it can
+ change over time.
+
+* If the system doesn't support SVE when perf_event_open is called with these
+ settings, the event will fail to open.
Appendix A. SVE programmer's model (informative)
=================================================
@@ -593,3 +611,5 @@ References
http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055c/IHI0055C_beta_aapcs64.pdf
http://infocenter.arm.com/help/topic/com.arm.doc.subset.swdev.abi/index.html
Procedure Call Standard for the ARM 64-bit Architecture (AArch64)
+
+[5] https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst
diff --git a/Documentation/atomic_bitops.txt b/Documentation/atomic_bitops.txt
index 093cdaefdb37..edea4656c5c0 100644
--- a/Documentation/atomic_bitops.txt
+++ b/Documentation/atomic_bitops.txt
@@ -58,13 +58,11 @@ Like with atomic_t, the rule of thumb is:
- RMW operations that have a return value are fully ordered.
- - RMW operations that are conditional are unordered on FAILURE,
- otherwise the above rules apply. In the case of test_and_{}_bit() operations,
- if the bit in memory is unchanged by the operation then it is deemed to have
- failed.
+ - RMW operations that are conditional are fully ordered.
-Except for a successful test_and_set_bit_lock() which has ACQUIRE semantics and
-clear_bit_unlock() which has RELEASE semantics.
+Except for a successful test_and_set_bit_lock() which has ACQUIRE semantics,
+clear_bit_unlock() which has RELEASE semantics and test_bit_acquire which has
+ACQUIRE semantics.
Since a platform only has a single means of achieving atomic operations
the same barriers as for atomic_t are used, see atomic_t.txt.
diff --git a/Documentation/block/index.rst b/Documentation/block/index.rst
index 68f115f2b1c6..c4c73db748a8 100644
--- a/Documentation/block/index.rst
+++ b/Documentation/block/index.rst
@@ -23,3 +23,4 @@ Block
stat
switching-sched
writeback_cache_control
+ ublk
diff --git a/Documentation/block/null_blk.rst b/Documentation/block/null_blk.rst
index edbbab2f12f8..4dd78f24d10a 100644
--- a/Documentation/block/null_blk.rst
+++ b/Documentation/block/null_blk.rst
@@ -72,6 +72,28 @@ submit_queues=[1..nr_cpus]: Default: 1
hw_queue_depth=[0..qdepth]: Default: 64
The hardware queue depth of the device.
+memory_backed=[0/1]: Default: 0
+ Whether or not to use a memory buffer to respond to IO requests
+
+ = =============================================
+ 0 Transfer no data in response to IO requests
+ 1 Use a memory buffer to respond to IO requests
+ = =============================================
+
+discard=[0/1]: Default: 0
+ Support discard operations (requires memory-backed null_blk device).
+
+ = =====================================
+ 0 Do not support discard operations
+ 1 Enable support for discard operations
+ = =====================================
+
+cache_size=[Size in MB]: Default: 0
+ Cache size in MB for memory-backed device.
+
+mbps=[Maximum bandwidth in MB/s]: Default: 0 (no limit)
+ Bandwidth limit for device performance.
+
Multi-queue specific parameters
-------------------------------
diff --git a/Documentation/block/ublk.rst b/Documentation/block/ublk.rst
new file mode 100644
index 000000000000..2122d1a4a541
--- /dev/null
+++ b/Documentation/block/ublk.rst
@@ -0,0 +1,253 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================================
+Userspace block device driver (ublk driver)
+===========================================
+
+Overview
+========
+
+ublk is a generic framework for implementing block device logic from userspace.
+The motivation behind it is that moving virtual block drivers into userspace,
+such as loop, nbd and similar can be very helpful. It can help to implement
+new virtual block device such as ublk-qcow2 (there are several attempts of
+implementing qcow2 driver in kernel).
+
+Userspace block devices are attractive because:
+
+- They can be written many programming languages.
+- They can use libraries that are not available in the kernel.
+- They can be debugged with tools familiar to application developers.
+- Crashes do not kernel panic the machine.
+- Bugs are likely to have a lower security impact than bugs in kernel
+ code.
+- They can be installed and updated independently of the kernel.
+- They can be used to simulate block device easily with user specified
+ parameters/setting for test/debug purpose
+
+ublk block device (``/dev/ublkb*``) is added by ublk driver. Any IO request
+on the device will be forwarded to ublk userspace program. For convenience,
+in this document, ``ublk server`` refers to generic ublk userspace
+program. ``ublksrv`` [#userspace]_ is one of such implementation. It
+provides ``libublksrv`` [#userspace_lib]_ library for developing specific
+user block device conveniently, while also generic type block device is
+included, such as loop and null. Richard W.M. Jones wrote userspace nbd device
+``nbdublk`` [#userspace_nbdublk]_ based on ``libublksrv`` [#userspace_lib]_.
+
+After the IO is handled by userspace, the result is committed back to the
+driver, thus completing the request cycle. This way, any specific IO handling
+logic is totally done by userspace, such as loop's IO handling, NBD's IO
+communication, or qcow2's IO mapping.
+
+``/dev/ublkb*`` is driven by blk-mq request-based driver. Each request is
+assigned by one queue wide unique tag. ublk server assigns unique tag to each
+IO too, which is 1:1 mapped with IO of ``/dev/ublkb*``.
+
+Both the IO request forward and IO handling result committing are done via
+``io_uring`` passthrough command; that is why ublk is also one io_uring based
+block driver. It has been observed that using io_uring passthrough command can
+give better IOPS than block IO; which is why ublk is one of high performance
+implementation of userspace block device: not only IO request communication is
+done by io_uring, but also the preferred IO handling in ublk server is io_uring
+based approach too.
+
+ublk provides control interface to set/get ublk block device parameters.
+The interface is extendable and kabi compatible: basically any ublk request
+queue's parameter or ublk generic feature parameters can be set/get via the
+interface. Thus, ublk is generic userspace block device framework.
+For example, it is easy to setup a ublk device with specified block
+parameters from userspace.
+
+Using ublk
+==========
+
+ublk requires userspace ublk server to handle real block device logic.
+
+Below is example of using ``ublksrv`` to provide ublk-based loop device.
+
+- add a device::
+
+ ublk add -t loop -f ublk-loop.img
+
+- format with xfs, then use it::
+
+ mkfs.xfs /dev/ublkb0
+ mount /dev/ublkb0 /mnt
+ # do anything. all IOs are handled by io_uring
+ ...
+ umount /mnt
+
+- list the devices with their info::
+
+ ublk list
+
+- delete the device::
+
+ ublk del -a
+ ublk del -n $ublk_dev_id
+
+See usage details in README of ``ublksrv`` [#userspace_readme]_.
+
+Design
+======
+
+Control plane
+-------------
+
+ublk driver provides global misc device node (``/dev/ublk-control``) for
+managing and controlling ublk devices with help of several control commands:
+
+- ``UBLK_CMD_ADD_DEV``
+
+ Add a ublk char device (``/dev/ublkc*``) which is talked with ublk server
+ WRT IO command communication. Basic device info is sent together with this
+ command. It sets UAPI structure of ``ublksrv_ctrl_dev_info``,
+ such as ``nr_hw_queues``, ``queue_depth``, and max IO request buffer size,
+ for which the info is negotiated with the driver and sent back to the server.
+ When this command is completed, the basic device info is immutable.
+
+- ``UBLK_CMD_SET_PARAMS`` / ``UBLK_CMD_GET_PARAMS``
+
+ Set or get parameters of the device, which can be either generic feature
+ related, or request queue limit related, but can't be IO logic specific,
+ because the driver does not handle any IO logic. This command has to be
+ sent before sending ``UBLK_CMD_START_DEV``.
+
+- ``UBLK_CMD_START_DEV``
+
+ After the server prepares userspace resources (such as creating per-queue
+ pthread & io_uring for handling ublk IO), this command is sent to the
+ driver for allocating & exposing ``/dev/ublkb*``. Parameters set via
+ ``UBLK_CMD_SET_PARAMS`` are applied for creating the device.
+
+- ``UBLK_CMD_STOP_DEV``
+
+ Halt IO on ``/dev/ublkb*`` and remove the device. When this command returns,
+ ublk server will release resources (such as destroying per-queue pthread &
+ io_uring).
+
+- ``UBLK_CMD_DEL_DEV``
+
+ Remove ``/dev/ublkc*``. When this command returns, the allocated ublk device
+ number can be reused.
+
+- ``UBLK_CMD_GET_QUEUE_AFFINITY``
+
+ When ``/dev/ublkc`` is added, the driver creates block layer tagset, so
+ that each queue's affinity info is available. The server sends
+ ``UBLK_CMD_GET_QUEUE_AFFINITY`` to retrieve queue affinity info. It can
+ set up the per-queue context efficiently, such as bind affine CPUs with IO
+ pthread and try to allocate buffers in IO thread context.
+
+- ``UBLK_CMD_GET_DEV_INFO``
+
+ For retrieving device info via ``ublksrv_ctrl_dev_info``. It is the server's
+ responsibility to save IO target specific info in userspace.
+
+Data plane
+----------
+
+ublk server needs to create per-queue IO pthread & io_uring for handling IO
+commands via io_uring passthrough. The per-queue IO pthread
+focuses on IO handling and shouldn't handle any control & management
+tasks.
+
+The's IO is assigned by a unique tag, which is 1:1 mapping with IO
+request of ``/dev/ublkb*``.
+
+UAPI structure of ``ublksrv_io_desc`` is defined for describing each IO from
+the driver. A fixed mmaped area (array) on ``/dev/ublkc*`` is provided for
+exporting IO info to the server; such as IO offset, length, OP/flags and
+buffer address. Each ``ublksrv_io_desc`` instance can be indexed via queue id
+and IO tag directly.
+
+The following IO commands are communicated via io_uring passthrough command,
+and each command is only for forwarding the IO and committing the result
+with specified IO tag in the command data:
+
+- ``UBLK_IO_FETCH_REQ``
+
+ Sent from the server IO pthread for fetching future incoming IO requests
+ destined to ``/dev/ublkb*``. This command is sent only once from the server
+ IO pthread for ublk driver to setup IO forward environment.
+
+- ``UBLK_IO_COMMIT_AND_FETCH_REQ``
+
+ When an IO request is destined to ``/dev/ublkb*``, the driver stores
+ the IO's ``ublksrv_io_desc`` to the specified mapped area; then the
+ previous received IO command of this IO tag (either ``UBLK_IO_FETCH_REQ``
+ or ``UBLK_IO_COMMIT_AND_FETCH_REQ)`` is completed, so the server gets
+ the IO notification via io_uring.
+
+ After the server handles the IO, its result is committed back to the
+ driver by sending ``UBLK_IO_COMMIT_AND_FETCH_REQ`` back. Once ublkdrv
+ received this command, it parses the result and complete the request to
+ ``/dev/ublkb*``. In the meantime setup environment for fetching future
+ requests with the same IO tag. That is, ``UBLK_IO_COMMIT_AND_FETCH_REQ``
+ is reused for both fetching request and committing back IO result.
+
+- ``UBLK_IO_NEED_GET_DATA``
+
+ With ``UBLK_F_NEED_GET_DATA`` enabled, the WRITE request will be firstly
+ issued to ublk server without data copy. Then, IO backend of ublk server
+ receives the request and it can allocate data buffer and embed its addr
+ inside this new io command. After the kernel driver gets the command,
+ data copy is done from request pages to this backend's buffer. Finally,
+ backend receives the request again with data to be written and it can
+ truly handle the request.
+
+ ``UBLK_IO_NEED_GET_DATA`` adds one additional round-trip and one
+ io_uring_enter() syscall. Any user thinks that it may lower performance
+ should not enable UBLK_F_NEED_GET_DATA. ublk server pre-allocates IO
+ buffer for each IO by default. Any new project should try to use this
+ buffer to communicate with ublk driver. However, existing project may
+ break or not able to consume the new buffer interface; that's why this
+ command is added for backwards compatibility so that existing projects
+ can still consume existing buffers.
+
+- data copy between ublk server IO buffer and ublk block IO request
+
+ The driver needs to copy the block IO request pages into the server buffer
+ (pages) first for WRITE before notifying the server of the coming IO, so
+ that the server can handle WRITE request.
+
+ When the server handles READ request and sends
+ ``UBLK_IO_COMMIT_AND_FETCH_REQ`` to the server, ublkdrv needs to copy
+ the server buffer (pages) read to the IO request pages.
+
+Future development
+==================
+
+Container-aware ublk deivice
+----------------------------
+
+ublk driver doesn't handle any IO logic. Its function is well defined
+for now and very limited userspace interfaces are needed, which is also
+well defined too. It is possible to make ublk devices container-aware block
+devices in future as Stefan Hajnoczi suggested [#stefan]_, by removing
+ADMIN privilege.
+
+Zero copy
+---------
+
+Zero copy is a generic requirement for nbd, fuse or similar drivers. A
+problem [#xiaoguang]_ Xiaoguang mentioned is that pages mapped to userspace
+can't be remapped any more in kernel with existing mm interfaces. This can
+occurs when destining direct IO to ``/dev/ublkb*``. Also, he reported that
+big requests (IO size >= 256 KB) may benefit a lot from zero copy.
+
+
+References
+==========
+
+.. [#userspace] https://github.com/ming1/ubdsrv
+
+.. [#userspace_lib] https://github.com/ming1/ubdsrv/tree/master/lib
+
+.. [#userspace_nbdublk] https://gitlab.com/rwmjones/libnbd/-/tree/nbdublk
+
+.. [#userspace_readme] https://github.com/ming1/ubdsrv/blob/master/README
+
+.. [#stefan] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/
+
+.. [#xiaoguang] https://lore.kernel.org/linux-block/YoOr6jBfgVm8GvWg@stefanha-x1.localdomain/
diff --git a/Documentation/bpf/bpf_design_QA.rst b/Documentation/bpf/bpf_design_QA.rst
index 437de2a7a5de..a210b8a4df00 100644
--- a/Documentation/bpf/bpf_design_QA.rst
+++ b/Documentation/bpf/bpf_design_QA.rst
@@ -214,6 +214,12 @@ A: NO. Tracepoints are tied to internal implementation details hence they are
subject to change and can break with newer kernels. BPF programs need to change
accordingly when this happens.
+Q: Are places where kprobes can attach part of the stable ABI?
+--------------------------------------------------------------
+A: NO. The places to which kprobes can attach are internal implementation
+details, which means that they are subject to change and can break with
+newer kernels. BPF programs need to change accordingly when this happens.
+
Q: How much stack space a BPF program uses?
-------------------------------------------
A: Currently all program types are limited to 512 bytes of stack
@@ -273,3 +279,22 @@ cc (congestion-control) implementations. If any of these kernel
functions has changed, both the in-tree and out-of-tree kernel tcp cc
implementations have to be changed. The same goes for the bpf
programs and they have to be adjusted accordingly.
+
+Q: Attaching to arbitrary kernel functions is an ABI?
+-----------------------------------------------------
+Q: BPF programs can be attached to many kernel functions. Do these
+kernel functions become part of the ABI?
+
+A: NO.
+
+The kernel function prototypes will change, and BPF programs attaching to
+them will need to change. The BPF compile-once-run-everywhere (CO-RE)
+should be used in order to make it easier to adapt your BPF programs to
+different versions of the kernel.
+
+Q: Marking a function with BTF_ID makes that function an ABI?
+-------------------------------------------------------------
+A: NO.
+
+The BTF_ID macro does not cause a function to become part of the ABI
+any more than does the EXPORT_SYMBOL_GPL macro.
diff --git a/Documentation/bpf/btf.rst b/Documentation/bpf/btf.rst
index 7940da9bc6c1..cf8722f96090 100644
--- a/Documentation/bpf/btf.rst
+++ b/Documentation/bpf/btf.rst
@@ -74,7 +74,7 @@ sequentially and type id is assigned to each recognized type starting from id
#define BTF_KIND_ARRAY 3 /* Array */
#define BTF_KIND_STRUCT 4 /* Struct */
#define BTF_KIND_UNION 5 /* Union */
- #define BTF_KIND_ENUM 6 /* Enumeration */
+ #define BTF_KIND_ENUM 6 /* Enumeration up to 32-bit values */
#define BTF_KIND_FWD 7 /* Forward */
#define BTF_KIND_TYPEDEF 8 /* Typedef */
#define BTF_KIND_VOLATILE 9 /* Volatile */
@@ -87,6 +87,7 @@ sequentially and type id is assigned to each recognized type starting from id
#define BTF_KIND_FLOAT 16 /* Floating point */
#define BTF_KIND_DECL_TAG 17 /* Decl Tag */
#define BTF_KIND_TYPE_TAG 18 /* Type Tag */
+ #define BTF_KIND_ENUM64 19 /* Enumeration up to 64-bit values */
Note that the type section encodes debug info, not just pure types.
``BTF_KIND_FUNC`` is not a type, and it represents a defined subprogram.
@@ -101,10 +102,10 @@ Each type contains the following common data::
* bits 24-28: kind (e.g. int, ptr, array...etc)
* bits 29-30: unused
* bit 31: kind_flag, currently used by
- * struct, union and fwd
+ * struct, union, fwd, enum and enum64.
*/
__u32 info;
- /* "size" is used by INT, ENUM, STRUCT and UNION.
+ /* "size" is used by INT, ENUM, STRUCT, UNION and ENUM64.
* "size" tells the size of the type it is describing.
*
* "type" is used by PTR, TYPEDEF, VOLATILE, CONST, RESTRICT,
@@ -281,10 +282,10 @@ modes exist:
``struct btf_type`` encoding requirement:
* ``name_off``: 0 or offset to a valid C identifier
- * ``info.kind_flag``: 0
+ * ``info.kind_flag``: 0 for unsigned, 1 for signed
* ``info.kind``: BTF_KIND_ENUM
* ``info.vlen``: number of enum values
- * ``size``: 4
+ * ``size``: 1/2/4/8
``btf_type`` is followed by ``info.vlen`` number of ``struct btf_enum``.::
@@ -297,6 +298,10 @@ The ``btf_enum`` encoding:
* ``name_off``: offset to a valid C identifier
* ``val``: any value
+If the original enum value is signed and the size is less than 4,
+that value will be sign extended into 4 bytes. If the size is 8,
+the value will be truncated into 4 bytes.
+
2.2.7 BTF_KIND_FWD
~~~~~~~~~~~~~~~~~~
@@ -364,7 +369,8 @@ No additional type data follow ``btf_type``.
* ``name_off``: offset to a valid C identifier
* ``info.kind_flag``: 0
* ``info.kind``: BTF_KIND_FUNC
- * ``info.vlen``: 0
+ * ``info.vlen``: linkage information (BTF_FUNC_STATIC, BTF_FUNC_GLOBAL
+ or BTF_FUNC_EXTERN)
* ``type``: a BTF_KIND_FUNC_PROTO type
No additional type data follow ``btf_type``.
@@ -375,6 +381,9 @@ type. The BTF_KIND_FUNC may in turn be referenced by a func_info in the
:ref:`BTF_Ext_Section` (ELF) or in the arguments to :ref:`BPF_Prog_Load`
(ABI).
+Currently, only linkage values of BTF_FUNC_STATIC and BTF_FUNC_GLOBAL are
+supported in the kernel.
+
2.2.13 BTF_KIND_FUNC_PROTO
~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -493,7 +502,7 @@ the attribute is applied to a ``struct``/``union`` member or
a ``func`` argument, and ``btf_decl_tag.component_idx`` should be a
valid index (starting from 0) pointing to a member or an argument.
-2.2.17 BTF_KIND_TYPE_TAG
+2.2.18 BTF_KIND_TYPE_TAG
~~~~~~~~~~~~~~~~~~~~~~~~
``struct btf_type`` encoding requirement:
@@ -516,6 +525,32 @@ type_tag, then zero or more const/volatile/restrict/typedef
and finally the base type. The base type is one of
int, ptr, array, struct, union, enum, func_proto and float types.
+2.2.19 BTF_KIND_ENUM64
+~~~~~~~~~~~~~~~~~~~~~~
+
+``struct btf_type`` encoding requirement:
+ * ``name_off``: 0 or offset to a valid C identifier
+ * ``info.kind_flag``: 0 for unsigned, 1 for signed
+ * ``info.kind``: BTF_KIND_ENUM64
+ * ``info.vlen``: number of enum values
+ * ``size``: 1/2/4/8
+
+``btf_type`` is followed by ``info.vlen`` number of ``struct btf_enum64``.::
+
+ struct btf_enum64 {
+ __u32 name_off;
+ __u32 val_lo32;
+ __u32 val_hi32;
+ };
+
+The ``btf_enum64`` encoding:
+ * ``name_off``: offset to a valid C identifier
+ * ``val_lo32``: lower 32-bit value for a 64-bit value
+ * ``val_hi32``: high 32-bit value for a 64-bit value
+
+If the original enum value is signed and the size is less than 8,
+that value will be sign extended into 8 bytes.
+
3. BTF Kernel API
=================
diff --git a/Documentation/bpf/clang-notes.rst b/Documentation/bpf/clang-notes.rst
new file mode 100644
index 000000000000..528feddf2db9
--- /dev/null
+++ b/Documentation/bpf/clang-notes.rst
@@ -0,0 +1,30 @@
+.. contents::
+.. sectnum::
+
+==========================
+Clang implementation notes
+==========================
+
+This document provides more details specific to the Clang/LLVM implementation of the eBPF instruction set.
+
+Versions
+========
+
+Clang defined "CPU" versions, where a CPU version of 3 corresponds to the current eBPF ISA.
+
+Clang can select the eBPF ISA version using ``-mcpu=v3`` for example to select version 3.
+
+Arithmetic instructions
+=======================
+
+For CPU versions prior to 3, Clang v7.0 and later can enable ``BPF_ALU`` support with
+``-Xclang -target-feature -Xclang +alu32``. In CPU version 3, support is automatically included.
+
+Atomic operations
+=================
+
+Clang can generate atomic instructions by default when ``-mcpu=v3`` is
+enabled. If a lower version for ``-mcpu`` is set, the only atomic instruction
+Clang can generate is ``BPF_ADD`` *without* ``BPF_FETCH``. If you need to enable
+the atomics features, while keeping a lower ``-mcpu`` version, you can use
+``-Xclang -target-feature -Xclang +alu32``.
diff --git a/Documentation/bpf/index.rst b/Documentation/bpf/index.rst
index 96056a7447c7..1b50de1983ee 100644
--- a/Documentation/bpf/index.rst
+++ b/Documentation/bpf/index.rst
@@ -19,12 +19,15 @@ that goes into great technical depth about the BPF Architecture.
faq
syscall_api
helpers
+ kfuncs
programs
maps
bpf_prog_run
classic_vs_extended.rst
bpf_licensing
test_debug
+ clang-notes
+ linux-notes
other
.. only:: subproject and html
diff --git a/Documentation/bpf/instruction-set.rst b/Documentation/bpf/instruction-set.rst
index 1de6a57c7e1e..5d798437dad4 100644
--- a/Documentation/bpf/instruction-set.rst
+++ b/Documentation/bpf/instruction-set.rst
@@ -1,7 +1,12 @@
+.. contents::
+.. sectnum::
+
+========================================
+eBPF Instruction Set Specification, v1.0
+========================================
+
+This document specifies version 1.0 of the eBPF instruction set.
-====================
-eBPF Instruction Set
-====================
Registers and calling convention
================================
@@ -11,10 +16,10 @@ all of which are 64-bits wide.
The eBPF calling convention is defined as:
- * R0: return value from function calls, and exit value for eBPF programs
- * R1 - R5: arguments for function calls
- * R6 - R9: callee saved registers that function calls will preserve
- * R10: read-only frame pointer to access stack
+* R0: return value from function calls, and exit value for eBPF programs
+* R1 - R5: arguments for function calls
+* R6 - R9: callee saved registers that function calls will preserve
+* R10: read-only frame pointer to access stack
R0 - R5 are scratch registers and eBPF programs needs to spill/fill them if
necessary across calls.
@@ -24,17 +29,17 @@ Instruction encoding
eBPF has two instruction encodings:
- * the basic instruction encoding, which uses 64 bits to encode an instruction
- * the wide instruction encoding, which appends a second 64-bit immediate value
- (imm64) after the basic instruction for a total of 128 bits.
+* the basic instruction encoding, which uses 64 bits to encode an instruction
+* the wide instruction encoding, which appends a second 64-bit immediate value
+ (imm64) after the basic instruction for a total of 128 bits.
The basic instruction encoding looks as follows:
- ============= ======= =============== ==================== ============
- 32 bits (MSB) 16 bits 4 bits 4 bits 8 bits (LSB)
- ============= ======= =============== ==================== ============
- immediate offset source register destination register opcode
- ============= ======= =============== ==================== ============
+============= ======= =============== ==================== ============
+32 bits (MSB) 16 bits 4 bits 4 bits 8 bits (LSB)
+============= ======= =============== ==================== ============
+immediate offset source register destination register opcode
+============= ======= =============== ==================== ============
Note that most instructions do not use all of the fields.
Unused fields shall be cleared to zero.
@@ -44,30 +49,30 @@ Instruction classes
The three LSB bits of the 'opcode' field store the instruction class:
- ========= ===== ===============================
- class value description
- ========= ===== ===============================
- BPF_LD 0x00 non-standard load operations
- BPF_LDX 0x01 load into register operations
- BPF_ST 0x02 store from immediate operations
- BPF_STX 0x03 store from register operations
- BPF_ALU 0x04 32-bit arithmetic operations
- BPF_JMP 0x05 64-bit jump operations
- BPF_JMP32 0x06 32-bit jump operations
- BPF_ALU64 0x07 64-bit arithmetic operations
- ========= ===== ===============================
+========= ===== =============================== ===================================
+class value description reference
+========= ===== =============================== ===================================
+BPF_LD 0x00 non-standard load operations `Load and store instructions`_
+BPF_LDX 0x01 load into register operations `Load and store instructions`_
+BPF_ST 0x02 store from immediate operations `Load and store instructions`_
+BPF_STX 0x03 store from register operations `Load and store instructions`_
+BPF_ALU 0x04 32-bit arithmetic operations `Arithmetic and jump instructions`_
+BPF_JMP 0x05 64-bit jump operations `Arithmetic and jump instructions`_
+BPF_JMP32 0x06 32-bit jump operations `Arithmetic and jump instructions`_
+BPF_ALU64 0x07 64-bit arithmetic operations `Arithmetic and jump instructions`_
+========= ===== =============================== ===================================
Arithmetic and jump instructions
================================
-For arithmetic and jump instructions (BPF_ALU, BPF_ALU64, BPF_JMP and
-BPF_JMP32), the 8-bit 'opcode' field is divided into three parts:
+For arithmetic and jump instructions (``BPF_ALU``, ``BPF_ALU64``, ``BPF_JMP`` and
+``BPF_JMP32``), the 8-bit 'opcode' field is divided into three parts:
- ============== ====== =================
- 4 bits (MSB) 1 bit 3 bits (LSB)
- ============== ====== =================
- operation code source instruction class
- ============== ====== =================
+============== ====== =================
+4 bits (MSB) 1 bit 3 bits (LSB)
+============== ====== =================
+operation code source instruction class
+============== ====== =================
The 4th bit encodes the source operand:
@@ -84,66 +89,66 @@ The four MSB bits store the operation code.
Arithmetic instructions
-----------------------
-BPF_ALU uses 32-bit wide operands while BPF_ALU64 uses 64-bit wide operands for
+``BPF_ALU`` uses 32-bit wide operands while ``BPF_ALU64`` uses 64-bit wide operands for
otherwise identical operations.
-The code field encodes the operation as below:
-
- ======== ===== =================================================
- code value description
- ======== ===== =================================================
- BPF_ADD 0x00 dst += src
- BPF_SUB 0x10 dst -= src
- BPF_MUL 0x20 dst \*= src
- BPF_DIV 0x30 dst /= src
- BPF_OR 0x40 dst \|= src
- BPF_AND 0x50 dst &= src
- BPF_LSH 0x60 dst <<= src
- BPF_RSH 0x70 dst >>= src
- BPF_NEG 0x80 dst = ~src
- BPF_MOD 0x90 dst %= src
- BPF_XOR 0xa0 dst ^= src
- BPF_MOV 0xb0 dst = src
- BPF_ARSH 0xc0 sign extending shift right
- BPF_END 0xd0 byte swap operations (see separate section below)
- ======== ===== =================================================
-
-BPF_ADD | BPF_X | BPF_ALU means::
+The 'code' field encodes the operation as below:
+
+======== ===== ==========================================================
+code value description
+======== ===== ==========================================================
+BPF_ADD 0x00 dst += src
+BPF_SUB 0x10 dst -= src
+BPF_MUL 0x20 dst \*= src
+BPF_DIV 0x30 dst /= src
+BPF_OR 0x40 dst \|= src
+BPF_AND 0x50 dst &= src
+BPF_LSH 0x60 dst <<= src
+BPF_RSH 0x70 dst >>= src
+BPF_NEG 0x80 dst = ~src
+BPF_MOD 0x90 dst %= src
+BPF_XOR 0xa0 dst ^= src
+BPF_MOV 0xb0 dst = src
+BPF_ARSH 0xc0 sign extending shift right
+BPF_END 0xd0 byte swap operations (see `Byte swap instructions`_ below)
+======== ===== ==========================================================
+
+``BPF_ADD | BPF_X | BPF_ALU`` means::
dst_reg = (u32) dst_reg + (u32) src_reg;
-BPF_ADD | BPF_X | BPF_ALU64 means::
+``BPF_ADD | BPF_X | BPF_ALU64`` means::
dst_reg = dst_reg + src_reg
-BPF_XOR | BPF_K | BPF_ALU means::
+``BPF_XOR | BPF_K | BPF_ALU`` means::
src_reg = (u32) src_reg ^ (u32) imm32
-BPF_XOR | BPF_K | BPF_ALU64 means::
+``BPF_XOR | BPF_K | BPF_ALU64`` means::
src_reg = src_reg ^ imm32
Byte swap instructions
-----------------------
+~~~~~~~~~~~~~~~~~~~~~~
-The byte swap instructions use an instruction class of ``BFP_ALU`` and a 4-bit
-code field of ``BPF_END``.
+The byte swap instructions use an instruction class of ``BPF_ALU`` and a 4-bit
+'code' field of ``BPF_END``.
The byte swap instructions operate on the destination register
only and do not use a separate source register or immediate value.
-The 1-bit source operand field in the opcode is used to to select what byte
+The 1-bit source operand field in the opcode is used to select what byte
order the operation convert from or to:
- ========= ===== =================================================
- source value description
- ========= ===== =================================================
- BPF_TO_LE 0x00 convert between host byte order and little endian
- BPF_TO_BE 0x08 convert between host byte order and big endian
- ========= ===== =================================================
+========= ===== =================================================
+source value description
+========= ===== =================================================
+BPF_TO_LE 0x00 convert between host byte order and little endian
+BPF_TO_BE 0x08 convert between host byte order and big endian
+========= ===== =================================================
-The imm field encodes the width of the swap operations. The following widths
+The 'imm' field encodes the width of the swap operations. The following widths
are supported: 16, 32 and 64.
Examples:
@@ -156,35 +161,31 @@ Examples:
dst_reg = htobe64(dst_reg)
-``BPF_FROM_LE`` and ``BPF_FROM_BE`` exist as aliases for ``BPF_TO_LE`` and
-``BPF_TO_BE`` respectively.
-
-
Jump instructions
-----------------
-BPF_JMP32 uses 32-bit wide operands while BPF_JMP uses 64-bit wide operands for
+``BPF_JMP32`` uses 32-bit wide operands while ``BPF_JMP`` uses 64-bit wide operands for
otherwise identical operations.
-The code field encodes the operation as below:
-
- ======== ===== ========================= ============
- code value description notes
- ======== ===== ========================= ============
- BPF_JA 0x00 PC += off BPF_JMP only
- BPF_JEQ 0x10 PC += off if dst == src
- BPF_JGT 0x20 PC += off if dst > src unsigned
- BPF_JGE 0x30 PC += off if dst >= src unsigned
- BPF_JSET 0x40 PC += off if dst & src
- BPF_JNE 0x50 PC += off if dst != src
- BPF_JSGT 0x60 PC += off if dst > src signed
- BPF_JSGE 0x70 PC += off if dst >= src signed
- BPF_CALL 0x80 function call
- BPF_EXIT 0x90 function / program return BPF_JMP only
- BPF_JLT 0xa0 PC += off if dst < src unsigned
- BPF_JLE 0xb0 PC += off if dst <= src unsigned
- BPF_JSLT 0xc0 PC += off if dst < src signed
- BPF_JSLE 0xd0 PC += off if dst <= src signed
- ======== ===== ========================= ============
+The 'code' field encodes the operation as below:
+
+======== ===== ========================= ============
+code value description notes
+======== ===== ========================= ============
+BPF_JA 0x00 PC += off BPF_JMP only
+BPF_JEQ 0x10 PC += off if dst == src
+BPF_JGT 0x20 PC += off if dst > src unsigned
+BPF_JGE 0x30 PC += off if dst >= src unsigned
+BPF_JSET 0x40 PC += off if dst & src
+BPF_JNE 0x50 PC += off if dst != src
+BPF_JSGT 0x60 PC += off if dst > src signed
+BPF_JSGE 0x70 PC += off if dst >= src signed
+BPF_CALL 0x80 function call
+BPF_EXIT 0x90 function / program return BPF_JMP only
+BPF_JLT 0xa0 PC += off if dst < src unsigned
+BPF_JLE 0xb0 PC += off if dst <= src unsigned
+BPF_JSLT 0xc0 PC += off if dst < src signed
+BPF_JSLE 0xd0 PC += off if dst <= src signed
+======== ===== ========================= ============
The eBPF program needs to store the return value into register R0 before doing a
BPF_EXIT.
@@ -193,14 +194,26 @@ BPF_EXIT.
Load and store instructions
===========================
-For load and store instructions (BPF_LD, BPF_LDX, BPF_ST and BPF_STX), the
+For load and store instructions (``BPF_LD``, ``BPF_LDX``, ``BPF_ST``, and ``BPF_STX``), the
8-bit 'opcode' field is divided as:
- ============ ====== =================
- 3 bits (MSB) 2 bits 3 bits (LSB)
- ============ ====== =================
- mode size instruction class
- ============ ====== =================
+============ ====== =================
+3 bits (MSB) 2 bits 3 bits (LSB)
+============ ====== =================
+mode size instruction class
+============ ====== =================
+
+The mode modifier is one of:
+
+ ============= ===== ==================================== =============
+ mode modifier value description reference
+ ============= ===== ==================================== =============
+ BPF_IMM 0x00 64-bit immediate instructions `64-bit immediate instructions`_
+ BPF_ABS 0x20 legacy BPF packet access (absolute) `Legacy BPF Packet access instructions`_
+ BPF_IND 0x40 legacy BPF packet access (indirect) `Legacy BPF Packet access instructions`_
+ BPF_MEM 0x60 regular load and store operations `Regular load and store operations`_
+ BPF_ATOMIC 0xc0 atomic operations `Atomic operations`_
+ ============= ===== ==================================== =============
The size modifier is one of:
@@ -213,19 +226,6 @@ The size modifier is one of:
BPF_DW 0x18 double word (8 bytes)
============= ===== =====================
-The mode modifier is one of:
-
- ============= ===== ====================================
- mode modifier value description
- ============= ===== ====================================
- BPF_IMM 0x00 64-bit immediate instructions
- BPF_ABS 0x20 legacy BPF packet access (absolute)
- BPF_IND 0x40 legacy BPF packet access (indirect)
- BPF_MEM 0x60 regular load and store operations
- BPF_ATOMIC 0xc0 atomic operations
- ============= ===== ====================================
-
-
Regular load and store operations
---------------------------------
@@ -256,44 +256,42 @@ by other eBPF programs or means outside of this specification.
All atomic operations supported by eBPF are encoded as store operations
that use the ``BPF_ATOMIC`` mode modifier as follows:
- * ``BPF_ATOMIC | BPF_W | BPF_STX`` for 32-bit operations
- * ``BPF_ATOMIC | BPF_DW | BPF_STX`` for 64-bit operations
- * 8-bit and 16-bit wide atomic operations are not supported.
+* ``BPF_ATOMIC | BPF_W | BPF_STX`` for 32-bit operations
+* ``BPF_ATOMIC | BPF_DW | BPF_STX`` for 64-bit operations
+* 8-bit and 16-bit wide atomic operations are not supported.
-The imm field is used to encode the actual atomic operation.
+The 'imm' field is used to encode the actual atomic operation.
Simple atomic operation use a subset of the values defined to encode
-arithmetic operations in the imm field to encode the atomic operation:
+arithmetic operations in the 'imm' field to encode the atomic operation:
- ======== ===== ===========
- imm value description
- ======== ===== ===========
- BPF_ADD 0x00 atomic add
- BPF_OR 0x40 atomic or
- BPF_AND 0x50 atomic and
- BPF_XOR 0xa0 atomic xor
- ======== ===== ===========
+======== ===== ===========
+imm value description
+======== ===== ===========
+BPF_ADD 0x00 atomic add
+BPF_OR 0x40 atomic or
+BPF_AND 0x50 atomic and
+BPF_XOR 0xa0 atomic xor
+======== ===== ===========
-``BPF_ATOMIC | BPF_W | BPF_STX`` with imm = BPF_ADD means::
+``BPF_ATOMIC | BPF_W | BPF_STX`` with 'imm' = BPF_ADD means::
*(u32 *)(dst_reg + off16) += src_reg
-``BPF_ATOMIC | BPF_DW | BPF_STX`` with imm = BPF ADD means::
+``BPF_ATOMIC | BPF_DW | BPF_STX`` with 'imm' = BPF ADD means::
*(u64 *)(dst_reg + off16) += src_reg
-``BPF_XADD`` is a deprecated name for ``BPF_ATOMIC | BPF_ADD``.
-
In addition to the simple atomic operations, there also is a modifier and
two complex atomic operations:
- =========== ================ ===========================
- imm value description
- =========== ================ ===========================
- BPF_FETCH 0x01 modifier: return old value
- BPF_XCHG 0xe0 | BPF_FETCH atomic exchange
- BPF_CMPXCHG 0xf0 | BPF_FETCH atomic compare and exchange
- =========== ================ ===========================
+=========== ================ ===========================
+imm value description
+=========== ================ ===========================
+BPF_FETCH 0x01 modifier: return old value
+BPF_XCHG 0xe0 | BPF_FETCH atomic exchange
+BPF_CMPXCHG 0xf0 | BPF_FETCH atomic compare and exchange
+=========== ================ ===========================
The ``BPF_FETCH`` modifier is optional for simple atomic operations, and
always set for the complex atomic operations. If the ``BPF_FETCH`` flag
@@ -309,16 +307,10 @@ The ``BPF_CMPXCHG`` operation atomically compares the value addressed by
value that was at ``dst_reg + off`` before the operation is zero-extended
and loaded back to ``R0``.
-Clang can generate atomic instructions by default when ``-mcpu=v3`` is
-enabled. If a lower version for ``-mcpu`` is set, the only atomic instruction
-Clang can generate is ``BPF_ADD`` *without* ``BPF_FETCH``. If you need to enable
-the atomics features, while keeping a lower ``-mcpu`` version, you can use
-``-Xclang -target-feature -Xclang +alu32``.
-
64-bit immediate instructions
-----------------------------
-Instructions with the ``BPF_IMM`` mode modifier use the wide instruction
+Instructions with the ``BPF_IMM`` 'mode' modifier use the wide instruction
encoding for an extra imm64 value.
There is currently only one such instruction.
@@ -331,36 +323,6 @@ There is currently only one such instruction.
Legacy BPF Packet access instructions
-------------------------------------
-eBPF has special instructions for access to packet data that have been
-carried over from classic BPF to retain the performance of legacy socket
-filters running in the eBPF interpreter.
-
-The instructions come in two forms: ``BPF_ABS | <size> | BPF_LD`` and
-``BPF_IND | <size> | BPF_LD``.
-
-These instructions are used to access packet data and can only be used when
-the program context is a pointer to networking packet. ``BPF_ABS``
-accesses packet data at an absolute offset specified by the immediate data
-and ``BPF_IND`` access packet data at an offset that includes the value of
-a register in addition to the immediate data.
-
-These instructions have seven implicit operands:
-
- * Register R6 is an implicit input that must contain pointer to a
- struct sk_buff.
- * Register R0 is an implicit output which contains the data fetched from
- the packet.
- * Registers R1-R5 are scratch registers that are clobbered after a call to
- ``BPF_ABS | BPF_LD`` or ``BPF_IND`` | BPF_LD instructions.
-
-These instructions have an implicit program exit condition as well. When an
-eBPF program is trying to access the data beyond the packet boundary, the
-program execution will be aborted.
-
-``BPF_ABS | BPF_W | BPF_LD`` means::
-
- R0 = ntohl(*(u32 *) (((struct sk_buff *) R6)->data + imm32))
-
-``BPF_IND | BPF_W | BPF_LD`` means::
-
- R0 = ntohl(*(u32 *) (((struct sk_buff *) R6)->data + src_reg + imm32))
+eBPF previously introduced special instructions for access to packet data that were
+carried over from classic BPF. However, these instructions are
+deprecated and should no longer be used.
diff --git a/Documentation/bpf/kfuncs.rst b/Documentation/bpf/kfuncs.rst
new file mode 100644
index 000000000000..0f858156371d
--- /dev/null
+++ b/Documentation/bpf/kfuncs.rst
@@ -0,0 +1,193 @@
+=============================
+BPF Kernel Functions (kfuncs)
+=============================
+
+1. Introduction
+===============
+
+BPF Kernel Functions or more commonly known as kfuncs are functions in the Linux
+kernel which are exposed for use by BPF programs. Unlike normal BPF helpers,
+kfuncs do not have a stable interface and can change from one kernel release to
+another. Hence, BPF programs need to be updated in response to changes in the
+kernel.
+
+2. Defining a kfunc
+===================
+
+There are two ways to expose a kernel function to BPF programs, either make an
+existing function in the kernel visible, or add a new wrapper for BPF. In both
+cases, care must be taken that BPF program can only call such function in a
+valid context. To enforce this, visibility of a kfunc can be per program type.
+
+If you are not creating a BPF wrapper for existing kernel function, skip ahead
+to :ref:`BPF_kfunc_nodef`.
+
+2.1 Creating a wrapper kfunc
+----------------------------
+
+When defining a wrapper kfunc, the wrapper function should have extern linkage.
+This prevents the compiler from optimizing away dead code, as this wrapper kfunc
+is not invoked anywhere in the kernel itself. It is not necessary to provide a
+prototype in a header for the wrapper kfunc.
+
+An example is given below::
+
+ /* Disables missing prototype warnings */
+ __diag_push();
+ __diag_ignore_all("-Wmissing-prototypes",
+ "Global kfuncs as their definitions will be in BTF");
+
+ struct task_struct *bpf_find_get_task_by_vpid(pid_t nr)
+ {
+ return find_get_task_by_vpid(nr);
+ }
+
+ __diag_pop();
+
+A wrapper kfunc is often needed when we need to annotate parameters of the
+kfunc. Otherwise one may directly make the kfunc visible to the BPF program by
+registering it with the BPF subsystem. See :ref:`BPF_kfunc_nodef`.
+
+2.2 Annotating kfunc parameters
+-------------------------------
+
+Similar to BPF helpers, there is sometime need for additional context required
+by the verifier to make the usage of kernel functions safer and more useful.
+Hence, we can annotate a parameter by suffixing the name of the argument of the
+kfunc with a __tag, where tag may be one of the supported annotations.
+
+2.2.1 __sz Annotation
+---------------------
+
+This annotation is used to indicate a memory and size pair in the argument list.
+An example is given below::
+
+ void bpf_memzero(void *mem, int mem__sz)
+ {
+ ...
+ }
+
+Here, the verifier will treat first argument as a PTR_TO_MEM, and second
+argument as its size. By default, without __sz annotation, the size of the type
+of the pointer is used. Without __sz annotation, a kfunc cannot accept a void
+pointer.
+
+.. _BPF_kfunc_nodef:
+
+2.3 Using an existing kernel function
+-------------------------------------
+
+When an existing function in the kernel is fit for consumption by BPF programs,
+it can be directly registered with the BPF subsystem. However, care must still
+be taken to review the context in which it will be invoked by the BPF program
+and whether it is safe to do so.
+
+2.4 Annotating kfuncs
+---------------------
+
+In addition to kfuncs' arguments, verifier may need more information about the
+type of kfunc(s) being registered with the BPF subsystem. To do so, we define
+flags on a set of kfuncs as follows::
+
+ BTF_SET8_START(bpf_task_set)
+ BTF_ID_FLAGS(func, bpf_get_task_pid, KF_ACQUIRE | KF_RET_NULL)
+ BTF_ID_FLAGS(func, bpf_put_pid, KF_RELEASE)
+ BTF_SET8_END(bpf_task_set)
+
+This set encodes the BTF ID of each kfunc listed above, and encodes the flags
+along with it. Ofcourse, it is also allowed to specify no flags.
+
+2.4.1 KF_ACQUIRE flag
+---------------------
+
+The KF_ACQUIRE flag is used to indicate that the kfunc returns a pointer to a
+refcounted object. The verifier will then ensure that the pointer to the object
+is eventually released using a release kfunc, or transferred to a map using a
+referenced kptr (by invoking bpf_kptr_xchg). If not, the verifier fails the
+loading of the BPF program until no lingering references remain in all possible
+explored states of the program.
+
+2.4.2 KF_RET_NULL flag
+----------------------
+
+The KF_RET_NULL flag is used to indicate that the pointer returned by the kfunc
+may be NULL. Hence, it forces the user to do a NULL check on the pointer
+returned from the kfunc before making use of it (dereferencing or passing to
+another helper). This flag is often used in pairing with KF_ACQUIRE flag, but
+both are orthogonal to each other.
+
+2.4.3 KF_RELEASE flag
+---------------------
+
+The KF_RELEASE flag is used to indicate that the kfunc releases the pointer
+passed in to it. There can be only one referenced pointer that can be passed in.
+All copies of the pointer being released are invalidated as a result of invoking
+kfunc with this flag.
+
+2.4.4 KF_KPTR_GET flag
+----------------------
+
+The KF_KPTR_GET flag is used to indicate that the kfunc takes the first argument
+as a pointer to kptr, safely increments the refcount of the object it points to,
+and returns a reference to the user. The rest of the arguments may be normal
+arguments of a kfunc. The KF_KPTR_GET flag should be used in conjunction with
+KF_ACQUIRE and KF_RET_NULL flags.
+
+2.4.5 KF_TRUSTED_ARGS flag
+--------------------------
+
+The KF_TRUSTED_ARGS flag is used for kfuncs taking pointer arguments. It
+indicates that the all pointer arguments will always have a guaranteed lifetime,
+and pointers to kernel objects are always passed to helpers in their unmodified
+form (as obtained from acquire kfuncs).
+
+It can be used to enforce that a pointer to a refcounted object acquired from a
+kfunc or BPF helper is passed as an argument to this kfunc without any
+modifications (e.g. pointer arithmetic) such that it is trusted and points to
+the original object.
+
+Meanwhile, it is also allowed pass pointers to normal memory to such kfuncs,
+but those can have a non-zero offset.
+
+This flag is often used for kfuncs that operate (change some property, perform
+some operation) on an object that was obtained using an acquire kfunc. Such
+kfuncs need an unchanged pointer to ensure the integrity of the operation being
+performed on the expected object.
+
+2.4.6 KF_SLEEPABLE flag
+-----------------------
+
+The KF_SLEEPABLE flag is used for kfuncs that may sleep. Such kfuncs can only
+be called by sleepable BPF programs (BPF_F_SLEEPABLE).
+
+2.4.7 KF_DESTRUCTIVE flag
+--------------------------
+
+The KF_DESTRUCTIVE flag is used to indicate functions calling which is
+destructive to the system. For example such a call can result in system
+rebooting or panicking. Due to this additional restrictions apply to these
+calls. At the moment they only require CAP_SYS_BOOT capability, but more can be
+added later.
+
+2.5 Registering the kfuncs
+--------------------------
+
+Once the kfunc is prepared for use, the final step to making it visible is
+registering it with the BPF subsystem. Registration is done per BPF program
+type. An example is shown below::
+
+ BTF_SET8_START(bpf_task_set)
+ BTF_ID_FLAGS(func, bpf_get_task_pid, KF_ACQUIRE | KF_RET_NULL)
+ BTF_ID_FLAGS(func, bpf_put_pid, KF_RELEASE)
+ BTF_SET8_END(bpf_task_set)
+
+ static const struct btf_kfunc_id_set bpf_task_kfunc_set = {
+ .owner = THIS_MODULE,
+ .set = &bpf_task_set,
+ };
+
+ static int init_subsystem(void)
+ {
+ return register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &bpf_task_kfunc_set);
+ }
+ late_initcall(init_subsystem);
diff --git a/Documentation/bpf/libbpf/libbpf_naming_convention.rst b/Documentation/bpf/libbpf/libbpf_naming_convention.rst
index f86360f734a8..c5ac97f3d4c4 100644
--- a/Documentation/bpf/libbpf/libbpf_naming_convention.rst
+++ b/Documentation/bpf/libbpf/libbpf_naming_convention.rst
@@ -9,8 +9,8 @@ described here. It's recommended to follow these conventions whenever a
new function or type is added to keep libbpf API clean and consistent.
All types and functions provided by libbpf API should have one of the
-following prefixes: ``bpf_``, ``btf_``, ``libbpf_``, ``xsk_``,
-``btf_dump_``, ``ring_buffer_``, ``perf_buffer_``.
+following prefixes: ``bpf_``, ``btf_``, ``libbpf_``, ``btf_dump_``,
+``ring_buffer_``, ``perf_buffer_``.
System call wrappers
--------------------
@@ -59,15 +59,6 @@ Auxiliary functions and types that don't fit well in any of categories
described above should have ``libbpf_`` prefix, e.g.
``libbpf_get_error`` or ``libbpf_prog_type_by_name``.
-AF_XDP functions
--------------------
-
-AF_XDP functions should have an ``xsk_`` prefix, e.g.
-``xsk_umem__get_data`` or ``xsk_umem__create``. The interface consists
-of both low-level ring access functions and high-level configuration
-functions. These can be mixed and matched. Note that these functions
-are not reentrant for performance reasons.
-
ABI
---
diff --git a/Documentation/bpf/linux-notes.rst b/Documentation/bpf/linux-notes.rst
new file mode 100644
index 000000000000..956b0c86699d
--- /dev/null
+++ b/Documentation/bpf/linux-notes.rst
@@ -0,0 +1,53 @@
+.. contents::
+.. sectnum::
+
+==========================
+Linux implementation notes
+==========================
+
+This document provides more details specific to the Linux kernel implementation of the eBPF instruction set.
+
+Byte swap instructions
+======================
+
+``BPF_FROM_LE`` and ``BPF_FROM_BE`` exist as aliases for ``BPF_TO_LE`` and ``BPF_TO_BE`` respectively.
+
+Legacy BPF Packet access instructions
+=====================================
+
+As mentioned in the `ISA standard documentation <instruction-set.rst#legacy-bpf-packet-access-instructions>`_,
+Linux has special eBPF instructions for access to packet data that have been
+carried over from classic BPF to retain the performance of legacy socket
+filters running in the eBPF interpreter.
+
+The instructions come in two forms: ``BPF_ABS | <size> | BPF_LD`` and
+``BPF_IND | <size> | BPF_LD``.
+
+These instructions are used to access packet data and can only be used when
+the program context is a pointer to a networking packet. ``BPF_ABS``
+accesses packet data at an absolute offset specified by the immediate data
+and ``BPF_IND`` access packet data at an offset that includes the value of
+a register in addition to the immediate data.
+
+These instructions have seven implicit operands:
+
+* Register R6 is an implicit input that must contain a pointer to a
+ struct sk_buff.
+* Register R0 is an implicit output which contains the data fetched from
+ the packet.
+* Registers R1-R5 are scratch registers that are clobbered by the
+ instruction.
+
+These instructions have an implicit program exit condition as well. If an
+eBPF program attempts access data beyond the packet boundary, the
+program execution will be aborted.
+
+``BPF_ABS | BPF_W | BPF_LD`` (0x20) means::
+
+ R0 = ntohl(*(u32 *) ((struct sk_buff *) R6->data + imm))
+
+where ``ntohl()`` converts a 32-bit value from network byte order to host byte order.
+
+``BPF_IND | BPF_W | BPF_LD`` (0x40) means::
+
+ R0 = ntohl(*(u32 *) ((struct sk_buff *) R6->data + src + imm))
diff --git a/Documentation/bpf/map_cgroup_storage.rst b/Documentation/bpf/map_cgroup_storage.rst
index cab9543017bf..8e5fe532c07e 100644
--- a/Documentation/bpf/map_cgroup_storage.rst
+++ b/Documentation/bpf/map_cgroup_storage.rst
@@ -31,7 +31,7 @@ The map uses key of type of either ``__u64 cgroup_inode_id`` or
};
``cgroup_inode_id`` is the inode id of the cgroup directory.
-``attach_type`` is the the program's attach type.
+``attach_type`` is the program's attach type.
Linux 5.9 added support for type ``__u64 cgroup_inode_id`` as the key type.
When this key type is used, then all attach types of the particular cgroup and
@@ -155,7 +155,7 @@ However, the BPF program can still only associate with one map of each type
``BPF_MAP_TYPE_CGROUP_STORAGE`` or more than one
``BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE``.
-In all versions, userspace may use the the attach parameters of cgroup and
+In all versions, userspace may use the attach parameters of cgroup and
attach type pair in ``struct bpf_cgroup_storage_key`` as the key to the BPF map
APIs to read or update the storage for a given attachment. For Linux 5.9
attach type shared storages, only the first value in the struct, cgroup inode
diff --git a/Documentation/bpf/map_hash.rst b/Documentation/bpf/map_hash.rst
new file mode 100644
index 000000000000..e85120878b27
--- /dev/null
+++ b/Documentation/bpf/map_hash.rst
@@ -0,0 +1,185 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+.. Copyright (C) 2022 Red Hat, Inc.
+
+===============================================
+BPF_MAP_TYPE_HASH, with PERCPU and LRU Variants
+===============================================
+
+.. note::
+ - ``BPF_MAP_TYPE_HASH`` was introduced in kernel version 3.19
+ - ``BPF_MAP_TYPE_PERCPU_HASH`` was introduced in version 4.6
+ - Both ``BPF_MAP_TYPE_LRU_HASH`` and ``BPF_MAP_TYPE_LRU_PERCPU_HASH``
+ were introduced in version 4.10
+
+``BPF_MAP_TYPE_HASH`` and ``BPF_MAP_TYPE_PERCPU_HASH`` provide general
+purpose hash map storage. Both the key and the value can be structs,
+allowing for composite keys and values.
+
+The kernel is responsible for allocating and freeing key/value pairs, up
+to the max_entries limit that you specify. Hash maps use pre-allocation
+of hash table elements by default. The ``BPF_F_NO_PREALLOC`` flag can be
+used to disable pre-allocation when it is too memory expensive.
+
+``BPF_MAP_TYPE_PERCPU_HASH`` provides a separate value slot per
+CPU. The per-cpu values are stored internally in an array.
+
+The ``BPF_MAP_TYPE_LRU_HASH`` and ``BPF_MAP_TYPE_LRU_PERCPU_HASH``
+variants add LRU semantics to their respective hash tables. An LRU hash
+will automatically evict the least recently used entries when the hash
+table reaches capacity. An LRU hash maintains an internal LRU list that
+is used to select elements for eviction. This internal LRU list is
+shared across CPUs but it is possible to request a per CPU LRU list with
+the ``BPF_F_NO_COMMON_LRU`` flag when calling ``bpf_map_create``.
+
+Usage
+=====
+
+.. c:function::
+ long bpf_map_update_elem(struct bpf_map *map, const void *key, const void *value, u64 flags)
+
+Hash entries can be added or updated using the ``bpf_map_update_elem()``
+helper. This helper replaces existing elements atomically. The ``flags``
+parameter can be used to control the update behaviour:
+
+- ``BPF_ANY`` will create a new element or update an existing element
+- ``BPF_NOEXIST`` will create a new element only if one did not already
+ exist
+- ``BPF_EXIST`` will update an existing element
+
+``bpf_map_update_elem()`` returns 0 on success, or negative error in
+case of failure.
+
+.. c:function::
+ void *bpf_map_lookup_elem(struct bpf_map *map, const void *key)
+
+Hash entries can be retrieved using the ``bpf_map_lookup_elem()``
+helper. This helper returns a pointer to the value associated with
+``key``, or ``NULL`` if no entry was found.
+
+.. c:function::
+ long bpf_map_delete_elem(struct bpf_map *map, const void *key)
+
+Hash entries can be deleted using the ``bpf_map_delete_elem()``
+helper. This helper will return 0 on success, or negative error in case
+of failure.
+
+Per CPU Hashes
+--------------
+
+For ``BPF_MAP_TYPE_PERCPU_HASH`` and ``BPF_MAP_TYPE_LRU_PERCPU_HASH``
+the ``bpf_map_update_elem()`` and ``bpf_map_lookup_elem()`` helpers
+automatically access the hash slot for the current CPU.
+
+.. c:function::
+ void *bpf_map_lookup_percpu_elem(struct bpf_map *map, const void *key, u32 cpu)
+
+The ``bpf_map_lookup_percpu_elem()`` helper can be used to lookup the
+value in the hash slot for a specific CPU. Returns value associated with
+``key`` on ``cpu`` , or ``NULL`` if no entry was found or ``cpu`` is
+invalid.
+
+Concurrency
+-----------
+
+Values stored in ``BPF_MAP_TYPE_HASH`` can be accessed concurrently by
+programs running on different CPUs. Since Kernel version 5.1, the BPF
+infrastructure provides ``struct bpf_spin_lock`` to synchronise access.
+See ``tools/testing/selftests/bpf/progs/test_spin_lock.c``.
+
+Userspace
+---------
+
+.. c:function::
+ int bpf_map_get_next_key(int fd, const void *cur_key, void *next_key)
+
+In userspace, it is possible to iterate through the keys of a hash using
+libbpf's ``bpf_map_get_next_key()`` function. The first key can be fetched by
+calling ``bpf_map_get_next_key()`` with ``cur_key`` set to
+``NULL``. Subsequent calls will fetch the next key that follows the
+current key. ``bpf_map_get_next_key()`` returns 0 on success, -ENOENT if
+cur_key is the last key in the hash, or negative error in case of
+failure.
+
+Note that if ``cur_key`` gets deleted then ``bpf_map_get_next_key()``
+will instead return the *first* key in the hash table which is
+undesirable. It is recommended to use batched lookup if there is going
+to be key deletion intermixed with ``bpf_map_get_next_key()``.
+
+Examples
+========
+
+Please see the ``tools/testing/selftests/bpf`` directory for functional
+examples. The code snippets below demonstrates API usage.
+
+This example shows how to declare an LRU Hash with a struct key and a
+struct value.
+
+.. code-block:: c
+
+ #include <linux/bpf.h>
+ #include <bpf/bpf_helpers.h>
+
+ struct key {
+ __u32 srcip;
+ };
+
+ struct value {
+ __u64 packets;
+ __u64 bytes;
+ };
+
+ struct {
+ __uint(type, BPF_MAP_TYPE_LRU_HASH);
+ __uint(max_entries, 32);
+ __type(key, struct key);
+ __type(value, struct value);
+ } packet_stats SEC(".maps");
+
+This example shows how to create or update hash values using atomic
+instructions:
+
+.. code-block:: c
+
+ static void update_stats(__u32 srcip, int bytes)
+ {
+ struct key key = {
+ .srcip = srcip,
+ };
+ struct value *value = bpf_map_lookup_elem(&packet_stats, &key);
+
+ if (value) {
+ __sync_fetch_and_add(&value->packets, 1);
+ __sync_fetch_and_add(&value->bytes, bytes);
+ } else {
+ struct value newval = { 1, bytes };
+
+ bpf_map_update_elem(&packet_stats, &key, &newval, BPF_NOEXIST);
+ }
+ }
+
+Userspace walking the map elements from the map declared above:
+
+.. code-block:: c
+
+ #include <bpf/libbpf.h>
+ #include <bpf/bpf.h>
+
+ static void walk_hash_elements(int map_fd)
+ {
+ struct key *cur_key = NULL;
+ struct key next_key;
+ struct value value;
+ int err;
+
+ for (;;) {
+ err = bpf_map_get_next_key(map_fd, cur_key, &next_key);
+ if (err)
+ break;
+
+ bpf_map_lookup_elem(map_fd, &next_key, &value);
+
+ // Use key and value here
+
+ cur_key = &next_key;
+ }
+ }
diff --git a/Documentation/conf.py b/Documentation/conf.py
index 934727e23e0e..b50c85083149 100644
--- a/Documentation/conf.py
+++ b/Documentation/conf.py
@@ -15,6 +15,18 @@
import sys
import os
import sphinx
+import shutil
+
+# helper
+# ------
+
+def have_command(cmd):
+ """Search ``cmd`` in the ``PATH`` environment.
+
+ If found, return True.
+ If not found, return False.
+ """
+ return shutil.which(cmd) is not None
# Get Sphinx version
major, minor, patch = sphinx.version_info[:3]
@@ -86,6 +98,7 @@ if major >= 3:
"__used",
"__weak",
"noinline",
+ "__fix_address",
# include/linux/memblock.h:
"__init_memblock",
@@ -106,7 +119,32 @@ else:
autosectionlabel_prefix_document = True
autosectionlabel_maxdepth = 2
-extensions.append("sphinx.ext.imgmath")
+# Load math renderer:
+# For html builder, load imgmath only when its dependencies are met.
+# mathjax is the default math renderer since Sphinx 1.8.
+have_latex = have_command('latex')
+have_dvipng = have_command('dvipng')
+load_imgmath = have_latex and have_dvipng
+
+# Respect SPHINX_IMGMATH (for html docs only)
+if 'SPHINX_IMGMATH' in os.environ:
+ env_sphinx_imgmath = os.environ['SPHINX_IMGMATH']
+ if 'yes' in env_sphinx_imgmath:
+ load_imgmath = True
+ elif 'no' in env_sphinx_imgmath:
+ load_imgmath = False
+ else:
+ sys.stderr.write("Unknown env SPHINX_IMGMATH=%s ignored.\n" % env_sphinx_imgmath)
+
+# Always load imgmath for Sphinx <1.8 or for epub docs
+load_imgmath = (load_imgmath or (major == 1 and minor < 8)
+ or 'epub' in sys.argv)
+
+if load_imgmath:
+ extensions.append("sphinx.ext.imgmath")
+ math_renderer = 'imgmath'
+else:
+ math_renderer = 'mathjax'
# Add any paths that contain templates here, relative to this directory.
templates_path = ['_templates']
@@ -332,7 +370,8 @@ html_static_path = ['sphinx-static']
html_use_smartypants = False
# Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
+# Note that the RTD theme ignores this.
+html_sidebars = { '**': ['searchbox.html', 'localtoc.html', 'sourcelink.html']}
# Additional templates that should be rendered to pages, maps page names to
# template names.
diff --git a/Documentation/asm-annotations.rst b/Documentation/core-api/asm-annotations.rst
index a64f2ca469d4..bc514ed59887 100644
--- a/Documentation/asm-annotations.rst
+++ b/Documentation/core-api/asm-annotations.rst
@@ -43,10 +43,11 @@ annotated objects like this, tools can be run on them to generate more useful
information. In particular, on properly annotated objects, ``objtool`` can be
run to check and fix the object if needed. Currently, ``objtool`` can report
missing frame pointer setup/destruction in functions. It can also
-automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
+automatically generate annotations for the ORC unwinder
+(Documentation/x86/orc-unwinder.rst)
for most code. Both of these are especially important to support reliable
-stack traces which are in turn necessary for :doc:`Kernel live patching
-<livepatch/livepatch>`.
+stack traces which are in turn necessary for kernel live patching
+(Documentation/livepatch/livepatch.rst).
Caveat and Discussion
---------------------
diff --git a/Documentation/core-api/bus-virt-phys-mapping.rst b/Documentation/core-api/bus-virt-phys-mapping.rst
deleted file mode 100644
index c72b24a7d52c..000000000000
--- a/Documentation/core-api/bus-virt-phys-mapping.rst
+++ /dev/null
@@ -1,220 +0,0 @@
-==========================================================
-How to access I/O mapped memory from within device drivers
-==========================================================
-
-:Author: Linus
-
-.. warning::
-
- The virt_to_bus() and bus_to_virt() functions have been
- superseded by the functionality provided by the PCI DMA interface
- (see Documentation/core-api/dma-api-howto.rst). They continue
- to be documented below for historical purposes, but new code
- must not use them. --davidm 00/12/12
-
-::
-
- [ This is a mail message in response to a query on IO mapping, thus the
- strange format for a "document" ]
-
-The AHA-1542 is a bus-master device, and your patch makes the driver give the
-controller the physical address of the buffers, which is correct on x86
-(because all bus master devices see the physical memory mappings directly).
-
-However, on many setups, there are actually **three** different ways of looking
-at memory addresses, and in this case we actually want the third, the
-so-called "bus address".
-
-Essentially, the three ways of addressing memory are (this is "real memory",
-that is, normal RAM--see later about other details):
-
- - CPU untranslated. This is the "physical" address. Physical address
- 0 is what the CPU sees when it drives zeroes on the memory bus.
-
- - CPU translated address. This is the "virtual" address, and is
- completely internal to the CPU itself with the CPU doing the appropriate
- translations into "CPU untranslated".
-
- - bus address. This is the address of memory as seen by OTHER devices,
- not the CPU. Now, in theory there could be many different bus
- addresses, with each device seeing memory in some device-specific way, but
- happily most hardware designers aren't actually actively trying to make
- things any more complex than necessary, so you can assume that all
- external hardware sees the memory the same way.
-
-Now, on normal PCs the bus address is exactly the same as the physical
-address, and things are very simple indeed. However, they are that simple
-because the memory and the devices share the same address space, and that is
-not generally necessarily true on other PCI/ISA setups.
-
-Now, just as an example, on the PReP (PowerPC Reference Platform), the
-CPU sees a memory map something like this (this is from memory)::
-
- 0-2 GB "real memory"
- 2 GB-3 GB "system IO" (inb/out and similar accesses on x86)
- 3 GB-4 GB "IO memory" (shared memory over the IO bus)
-
-Now, that looks simple enough. However, when you look at the same thing from
-the viewpoint of the devices, you have the reverse, and the physical memory
-address 0 actually shows up as address 2 GB for any IO master.
-
-So when the CPU wants any bus master to write to physical memory 0, it
-has to give the master address 0x80000000 as the memory address.
-
-So, for example, depending on how the kernel is actually mapped on the
-PPC, you can end up with a setup like this::
-
- physical address: 0
- virtual address: 0xC0000000
- bus address: 0x80000000
-
-where all the addresses actually point to the same thing. It's just seen
-through different translations..
-
-Similarly, on the Alpha, the normal translation is::
-
- physical address: 0
- virtual address: 0xfffffc0000000000
- bus address: 0x40000000
-
-(but there are also Alphas where the physical address and the bus address
-are the same).
-
-Anyway, the way to look up all these translations, you do::
-
- #include <asm/io.h>
-
- phys_addr = virt_to_phys(virt_addr);
- virt_addr = phys_to_virt(phys_addr);
- bus_addr = virt_to_bus(virt_addr);
- virt_addr = bus_to_virt(bus_addr);
-
-Now, when do you need these?
-
-You want the **virtual** address when you are actually going to access that
-pointer from the kernel. So you can have something like this::
-
- /*
- * this is the hardware "mailbox" we use to communicate with
- * the controller. The controller sees this directly.
- */
- struct mailbox {
- __u32 status;
- __u32 bufstart;
- __u32 buflen;
- ..
- } mbox;
-
- unsigned char * retbuffer;
-
- /* get the address from the controller */
- retbuffer = bus_to_virt(mbox.bufstart);
- switch (retbuffer[0]) {
- case STATUS_OK:
- ...
-
-on the other hand, you want the bus address when you have a buffer that
-you want to give to the controller::
-
- /* ask the controller to read the sense status into "sense_buffer" */
- mbox.bufstart = virt_to_bus(&sense_buffer);
- mbox.buflen = sizeof(sense_buffer);
- mbox.status = 0;
- notify_controller(&mbox);
-
-And you generally **never** want to use the physical address, because you can't
-use that from the CPU (the CPU only uses translated virtual addresses), and
-you can't use it from the bus master.
-
-So why do we care about the physical address at all? We do need the physical
-address in some cases, it's just not very often in normal code. The physical
-address is needed if you use memory mappings, for example, because the
-"remap_pfn_range()" mm function wants the physical address of the memory to
-be remapped as measured in units of pages, a.k.a. the pfn (the memory
-management layer doesn't know about devices outside the CPU, so it
-shouldn't need to know about "bus addresses" etc).
-
-.. note::
-
- The above is only one part of the whole equation. The above
- only talks about "real memory", that is, CPU memory (RAM).
-
-There is a completely different type of memory too, and that's the "shared
-memory" on the PCI or ISA bus. That's generally not RAM (although in the case
-of a video graphics card it can be normal DRAM that is just used for a frame
-buffer), but can be things like a packet buffer in a network card etc.
-
-This memory is called "PCI memory" or "shared memory" or "IO memory" or
-whatever, and there is only one way to access it: the readb/writeb and
-related functions. You should never take the address of such memory, because
-there is really nothing you can do with such an address: it's not
-conceptually in the same memory space as "real memory" at all, so you cannot
-just dereference a pointer. (Sadly, on x86 it **is** in the same memory space,
-so on x86 it actually works to just deference a pointer, but it's not
-portable).
-
-For such memory, you can do things like:
-
- - reading::
-
- /*
- * read first 32 bits from ISA memory at 0xC0000, aka
- * C000:0000 in DOS terms
- */
- unsigned int signature = isa_readl(0xC0000);
-
- - remapping and writing::
-
- /*
- * remap framebuffer PCI memory area at 0xFC000000,
- * size 1MB, so that we can access it: We can directly
- * access only the 640k-1MB area, so anything else
- * has to be remapped.
- */
- void __iomem *baseptr = ioremap(0xFC000000, 1024*1024);
-
- /* write a 'A' to the offset 10 of the area */
- writeb('A',baseptr+10);
-
- /* unmap when we unload the driver */
- iounmap(baseptr);
-
- - copying and clearing::
-
- /* get the 6-byte Ethernet address at ISA address E000:0040 */
- memcpy_fromio(kernel_buffer, 0xE0040, 6);
- /* write a packet to the driver */
- memcpy_toio(0xE1000, skb->data, skb->len);
- /* clear the frame buffer */
- memset_io(0xA0000, 0, 0x10000);
-
-OK, that just about covers the basics of accessing IO portably. Questions?
-Comments? You may think that all the above is overly complex, but one day you
-might find yourself with a 500 MHz Alpha in front of you, and then you'll be
-happy that your driver works ;)
-
-Note that kernel versions 2.0.x (and earlier) mistakenly called the
-ioremap() function "vremap()". ioremap() is the proper name, but I
-didn't think straight when I wrote it originally. People who have to
-support both can do something like::
-
- /* support old naming silliness */
- #if LINUX_VERSION_CODE < 0x020100
- #define ioremap vremap
- #define iounmap vfree
- #endif
-
-at the top of their source files, and then they can use the right names
-even on 2.0.x systems.
-
-And the above sounds worse than it really is. Most real drivers really
-don't do all that complex things (or rather: the complexity is not so
-much in the actual IO accesses as in error handling and timeouts etc).
-It's generally not hard to fix drivers, and in many cases the code
-actually looks better afterwards::
-
- unsigned long signature = *(unsigned int *) 0xC0000;
- vs
- unsigned long signature = readl(0xC0000);
-
-I think the second version actually is more readable, no?
diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst
index c6f4ba2fb32d..f75778d37488 100644
--- a/Documentation/core-api/cpu_hotplug.rst
+++ b/Documentation/core-api/cpu_hotplug.rst
@@ -560,7 +560,7 @@ available:
* cpuhp_state_remove_instance(state, node)
* cpuhp_state_remove_instance_nocalls(state, node)
-The arguments are the same as for the the cpuhp_state_add_instance*()
+The arguments are the same as for the cpuhp_state_add_instance*()
variants above.
The functions differ in the way how the installed callbacks are treated:
diff --git a/Documentation/core-api/dma-api-howto.rst b/Documentation/core-api/dma-api-howto.rst
index 358d495456d1..828846804e25 100644
--- a/Documentation/core-api/dma-api-howto.rst
+++ b/Documentation/core-api/dma-api-howto.rst
@@ -707,20 +707,6 @@ to use the dma_sync_*() interfaces::
}
}
-Drivers converted fully to this interface should not use virt_to_bus() any
-longer, nor should they use bus_to_virt(). Some drivers have to be changed a
-little bit, because there is no longer an equivalent to bus_to_virt() in the
-dynamic DMA mapping scheme - you have to always store the DMA addresses
-returned by the dma_alloc_coherent(), dma_pool_alloc(), and dma_map_single()
-calls (dma_map_sg() stores them in the scatterlist itself if the platform
-supports dynamic DMA mapping in hardware) in your driver structures and/or
-in the card registers.
-
-All drivers should be using these interfaces with no exceptions. It
-is planned to completely remove virt_to_bus() and bus_to_virt() as
-they are entirely deprecated. Some ports already do not provide these
-as it is impossible to correctly support them.
-
Handling Errors
===============
diff --git a/Documentation/core-api/dma-api.rst b/Documentation/core-api/dma-api.rst
index 6d6d0edd2d27..829f20a193ca 100644
--- a/Documentation/core-api/dma-api.rst
+++ b/Documentation/core-api/dma-api.rst
@@ -206,6 +206,20 @@ others should not be larger than the returned value.
::
+ size_t
+ dma_opt_mapping_size(struct device *dev);
+
+Returns the maximum optimal size of a mapping for the device.
+
+Mapping larger buffers may take much longer in certain scenarios. In
+addition, for high-rate short-lived streaming mappings, the upfront time
+spent on the mapping may account for an appreciable part of the total
+request lifetime. As such, if splitting larger requests incurs no
+significant performance penalty, then device drivers are advised to
+limit total DMA streaming mappings length to the returned value.
+
+::
+
bool
dma_need_sync(struct device *dev, dma_addr_t dma_addr);
diff --git a/Documentation/core-api/idr.rst b/Documentation/core-api/idr.rst
index 2eb5afdb9931..18d724867064 100644
--- a/Documentation/core-api/idr.rst
+++ b/Documentation/core-api/idr.rst
@@ -17,6 +17,9 @@ solution to the problem to avoid everybody inventing their own. The IDR
provides the ability to map an ID to a pointer, while the IDA provides
only ID allocation, and as a result is much more memory-efficient.
+The IDR interface is deprecated; please use the :doc:`XArray <xarray>`
+instead.
+
IDR usage
=========
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index dedd4d853329..77eb775b8b42 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -23,6 +23,7 @@ it.
printk-formats
printk-index
symbol-namespaces
+ asm-annotations
Data structures and low-level utilities
=======================================
@@ -36,15 +37,17 @@ Library functionality that is used throughout the kernel.
kref
assoc_array
xarray
+ maple_tree
idr
circular-buffers
rbtree
generic-radix-tree
packing
- bus-virt-phys-mapping
this_cpu_ops
timekeeping
errseq
+ wrappers/atomic_t
+ wrappers/atomic_bitops
Low level entry and exit
========================
@@ -68,6 +71,7 @@ Documentation/locking/index.rst for more related documentation.
local_ops
padata
../RCU/index
+ wrappers/memory-barriers.rst
Low-level hardware management
=============================
@@ -87,7 +91,7 @@ Memory management
=================
How to allocate and use memory in the kernel. Note that there is a lot
-more memory-management documentation in Documentation/vm/index.rst.
+more memory-management documentation in Documentation/mm/index.rst.
.. toctree::
:maxdepth: 1
diff --git a/Documentation/core-api/irq/irq-domain.rst b/Documentation/core-api/irq/irq-domain.rst
index d30b4d0a9769..f88a6ee67a35 100644
--- a/Documentation/core-api/irq/irq-domain.rst
+++ b/Documentation/core-api/irq/irq-domain.rst
@@ -71,7 +71,7 @@ variety of methods:
Note that irq domain lookups must happen in contexts that are
compatible with a RCU read-side critical section.
-The irq_create_mapping() function must be called *atleast once*
+The irq_create_mapping() function must be called *at least once*
before any call to irq_find_mapping(), lest the descriptor will not
be allocated.
diff --git a/Documentation/core-api/maple_tree.rst b/Documentation/core-api/maple_tree.rst
new file mode 100644
index 000000000000..45defcf15da7
--- /dev/null
+++ b/Documentation/core-api/maple_tree.rst
@@ -0,0 +1,217 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+
+==========
+Maple Tree
+==========
+
+:Author: Liam R. Howlett
+
+Overview
+========
+
+The Maple Tree is a B-Tree data type which is optimized for storing
+non-overlapping ranges, including ranges of size 1. The tree was designed to
+be simple to use and does not require a user written search method. It
+supports iterating over a range of entries and going to the previous or next
+entry in a cache-efficient manner. The tree can also be put into an RCU-safe
+mode of operation which allows reading and writing concurrently. Writers must
+synchronize on a lock, which can be the default spinlock, or the user can set
+the lock to an external lock of a different type.
+
+The Maple Tree maintains a small memory footprint and was designed to use
+modern processor cache efficiently. The majority of the users will be able to
+use the normal API. An :ref:`maple-tree-advanced-api` exists for more complex
+scenarios. The most important usage of the Maple Tree is the tracking of the
+virtual memory areas.
+
+The Maple Tree can store values between ``0`` and ``ULONG_MAX``. The Maple
+Tree reserves values with the bottom two bits set to '10' which are below 4096
+(ie 2, 6, 10 .. 4094) for internal use. If the entries may use reserved
+entries then the users can convert the entries using xa_mk_value() and convert
+them back by calling xa_to_value(). If the user needs to use a reserved
+value, then the user can convert the value when using the
+:ref:`maple-tree-advanced-api`, but are blocked by the normal API.
+
+The Maple Tree can also be configured to support searching for a gap of a given
+size (or larger).
+
+Pre-allocating of nodes is also supported using the
+:ref:`maple-tree-advanced-api`. This is useful for users who must guarantee a
+successful store operation within a given
+code segment when allocating cannot be done. Allocations of nodes are
+relatively small at around 256 bytes.
+
+.. _maple-tree-normal-api:
+
+Normal API
+==========
+
+Start by initialising a maple tree, either with DEFINE_MTREE() for statically
+allocated maple trees or mt_init() for dynamically allocated ones. A
+freshly-initialised maple tree contains a ``NULL`` pointer for the range ``0``
+- ``ULONG_MAX``. There are currently two types of maple trees supported: the
+allocation tree and the regular tree. The regular tree has a higher branching
+factor for internal nodes. The allocation tree has a lower branching factor
+but allows the user to search for a gap of a given size or larger from either
+``0`` upwards or ``ULONG_MAX`` down. An allocation tree can be used by
+passing in the ``MT_FLAGS_ALLOC_RANGE`` flag when initialising the tree.
+
+You can then set entries using mtree_store() or mtree_store_range().
+mtree_store() will overwrite any entry with the new entry and return 0 on
+success or an error code otherwise. mtree_store_range() works in the same way
+but takes a range. mtree_load() is used to retrieve the entry stored at a
+given index. You can use mtree_erase() to erase an entire range by only
+knowing one value within that range, or mtree_store() call with an entry of
+NULL may be used to partially erase a range or many ranges at once.
+
+If you want to only store a new entry to a range (or index) if that range is
+currently ``NULL``, you can use mtree_insert_range() or mtree_insert() which
+return -EEXIST if the range is not empty.
+
+You can search for an entry from an index upwards by using mt_find().
+
+You can walk each entry within a range by calling mt_for_each(). You must
+provide a temporary variable to store a cursor. If you want to walk each
+element of the tree then ``0`` and ``ULONG_MAX`` may be used as the range. If
+the caller is going to hold the lock for the duration of the walk then it is
+worth looking at the mas_for_each() API in the :ref:`maple-tree-advanced-api`
+section.
+
+Sometimes it is necessary to ensure the next call to store to a maple tree does
+not allocate memory, please see :ref:`maple-tree-advanced-api` for this use case.
+
+Finally, you can remove all entries from a maple tree by calling
+mtree_destroy(). If the maple tree entries are pointers, you may wish to free
+the entries first.
+
+Allocating Nodes
+----------------
+
+The allocations are handled by the internal tree code. See
+:ref:`maple-tree-advanced-alloc` for other options.
+
+Locking
+-------
+
+You do not have to worry about locking. See :ref:`maple-tree-advanced-locks`
+for other options.
+
+The Maple Tree uses RCU and an internal spinlock to synchronise access:
+
+Takes RCU read lock:
+ * mtree_load()
+ * mt_find()
+ * mt_for_each()
+ * mt_next()
+ * mt_prev()
+
+Takes ma_lock internally:
+ * mtree_store()
+ * mtree_store_range()
+ * mtree_insert()
+ * mtree_insert_range()
+ * mtree_erase()
+ * mtree_destroy()
+ * mt_set_in_rcu()
+ * mt_clear_in_rcu()
+
+If you want to take advantage of the internal lock to protect the data
+structures that you are storing in the Maple Tree, you can call mtree_lock()
+before calling mtree_load(), then take a reference count on the object you
+have found before calling mtree_unlock(). This will prevent stores from
+removing the object from the tree between looking up the object and
+incrementing the refcount. You can also use RCU to avoid dereferencing
+freed memory, but an explanation of that is beyond the scope of this
+document.
+
+.. _maple-tree-advanced-api:
+
+Advanced API
+============
+
+The advanced API offers more flexibility and better performance at the
+cost of an interface which can be harder to use and has fewer safeguards.
+You must take care of your own locking while using the advanced API.
+You can use the ma_lock, RCU or an external lock for protection.
+You can mix advanced and normal operations on the same array, as long
+as the locking is compatible. The :ref:`maple-tree-normal-api` is implemented
+in terms of the advanced API.
+
+The advanced API is based around the ma_state, this is where the 'mas'
+prefix originates. The ma_state struct keeps track of tree operations to make
+life easier for both internal and external tree users.
+
+Initialising the maple tree is the same as in the :ref:`maple-tree-normal-api`.
+Please see above.
+
+The maple state keeps track of the range start and end in mas->index and
+mas->last, respectively.
+
+mas_walk() will walk the tree to the location of mas->index and set the
+mas->index and mas->last according to the range for the entry.
+
+You can set entries using mas_store(). mas_store() will overwrite any entry
+with the new entry and return the first existing entry that is overwritten.
+The range is passed in as members of the maple state: index and last.
+
+You can use mas_erase() to erase an entire range by setting index and
+last of the maple state to the desired range to erase. This will erase
+the first range that is found in that range, set the maple state index
+and last as the range that was erased and return the entry that existed
+at that location.
+
+You can walk each entry within a range by using mas_for_each(). If you want
+to walk each element of the tree then ``0`` and ``ULONG_MAX`` may be used as
+the range. If the lock needs to be periodically dropped, see the locking
+section mas_pause().
+
+Using a maple state allows mas_next() and mas_prev() to function as if the
+tree was a linked list. With such a high branching factor the amortized
+performance penalty is outweighed by cache optimization. mas_next() will
+return the next entry which occurs after the entry at index. mas_prev()
+will return the previous entry which occurs before the entry at index.
+
+mas_find() will find the first entry which exists at or above index on
+the first call, and the next entry from every subsequent calls.
+
+mas_find_rev() will find the fist entry which exists at or below the last on
+the first call, and the previous entry from every subsequent calls.
+
+If the user needs to yield the lock during an operation, then the maple state
+must be paused using mas_pause().
+
+There are a few extra interfaces provided when using an allocation tree.
+If you wish to search for a gap within a range, then mas_empty_area()
+or mas_empty_area_rev() can be used. mas_empty_area() searches for a gap
+starting at the lowest index given up to the maximum of the range.
+mas_empty_area_rev() searches for a gap starting at the highest index given
+and continues downward to the lower bound of the range.
+
+.. _maple-tree-advanced-alloc:
+
+Advanced Allocating Nodes
+-------------------------
+
+Allocations are usually handled internally to the tree, however if allocations
+need to occur before a write occurs then calling mas_expected_entries() will
+allocate the worst-case number of needed nodes to insert the provided number of
+ranges. This also causes the tree to enter mass insertion mode. Once
+insertions are complete calling mas_destroy() on the maple state will free the
+unused allocations.
+
+.. _maple-tree-advanced-locks:
+
+Advanced Locking
+----------------
+
+The maple tree uses a spinlock by default, but external locks can be used for
+tree updates as well. To use an external lock, the tree must be initialized
+with the ``MT_FLAGS_LOCK_EXTERN flag``, this is usually done with the
+MTREE_INIT_EXT() #define, which takes an external lock as an argument.
+
+Functions and structures
+========================
+
+.. kernel-doc:: include/linux/maple_tree.h
+.. kernel-doc:: lib/maple_tree.c
diff --git a/Documentation/core-api/mm-api.rst b/Documentation/core-api/mm-api.rst
index f5b2f92822c8..f5dde5bceaea 100644
--- a/Documentation/core-api/mm-api.rst
+++ b/Documentation/core-api/mm-api.rst
@@ -19,19 +19,16 @@ User Space Memory Access
Memory Allocation Controls
==========================
-.. kernel-doc:: include/linux/gfp.h
- :internal:
-
-.. kernel-doc:: include/linux/gfp.h
+.. kernel-doc:: include/linux/gfp_types.h
:doc: Page mobility and placement hints
-.. kernel-doc:: include/linux/gfp.h
+.. kernel-doc:: include/linux/gfp_types.h
:doc: Watermark modifiers
-.. kernel-doc:: include/linux/gfp.h
+.. kernel-doc:: include/linux/gfp_types.h
:doc: Reclaim modifiers
-.. kernel-doc:: include/linux/gfp.h
+.. kernel-doc:: include/linux/gfp_types.h
:doc: Useful GFP flag combinations
The Slab Cache
diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst
index 5e89497ba314..dbe1aacc79d0 100644
--- a/Documentation/core-api/printk-formats.rst
+++ b/Documentation/core-api/printk-formats.rst
@@ -625,6 +625,16 @@ Examples::
%p4cc Y10 little-endian (0x20303159)
%p4cc NV12 big-endian (0xb231564e)
+Rust
+----
+
+::
+
+ %pA
+
+Only intended to be used from Rust code to format ``core::fmt::Arguments``.
+Do *not* use it from C.
+
Thanks
======
diff --git a/Documentation/core-api/protection-keys.rst b/Documentation/core-api/protection-keys.rst
index ec575e72d0b2..bf28ac0401f3 100644
--- a/Documentation/core-api/protection-keys.rst
+++ b/Documentation/core-api/protection-keys.rst
@@ -4,31 +4,29 @@
Memory Protection Keys
======================
-Memory Protection Keys for Userspace (PKU aka PKEYs) is a feature
-which is found on Intel's Skylake (and later) "Scalable Processor"
-Server CPUs. It will be available in future non-server Intel parts
-and future AMD processors.
-
-For anyone wishing to test or use this feature, it is available in
-Amazon's EC2 C5 instances and is known to work there using an Ubuntu
-17.04 image.
-
-Memory Protection Keys provides a mechanism for enforcing page-based
-protections, but without requiring modification of the page tables
-when an application changes protection domains. It works by
-dedicating 4 previously ignored bits in each page table entry to a
-"protection key", giving 16 possible keys.
-
-There is also a new user-accessible register (PKRU) with two separate
-bits (Access Disable and Write Disable) for each key. Being a CPU
-register, PKRU is inherently thread-local, potentially giving each
+Memory Protection Keys provide a mechanism for enforcing page-based
+protections, but without requiring modification of the page tables when an
+application changes protection domains.
+
+Pkeys Userspace (PKU) is a feature which can be found on:
+ * Intel server CPUs, Skylake and later
+ * Intel client CPUs, Tiger Lake (11th Gen Core) and later
+ * Future AMD CPUs
+
+Pkeys work by dedicating 4 previously Reserved bits in each page table entry to
+a "protection key", giving 16 possible keys.
+
+Protections for each key are defined with a per-CPU user-accessible register
+(PKRU). Each of these is a 32-bit register storing two bits (Access Disable
+and Write Disable) for each of 16 keys.
+
+Being a CPU register, PKRU is inherently thread-local, potentially giving each
thread a different set of protections from every other thread.
-There are two new instructions (RDPKRU/WRPKRU) for reading and writing
-to the new register. The feature is only available in 64-bit mode,
-even though there is theoretically space in the PAE PTEs. These
-permissions are enforced on data access only and have no effect on
-instruction fetches.
+There are two instructions (RDPKRU/WRPKRU) for reading and writing to the
+register. The feature is only available in 64-bit mode, even though there is
+theoretically space in the PAE PTEs. These permissions are enforced on data
+access only and have no effect on instruction fetches.
Syscalls
========
diff --git a/Documentation/core-api/wrappers/atomic_bitops.rst b/Documentation/core-api/wrappers/atomic_bitops.rst
new file mode 100644
index 000000000000..bf24e4081a8f
--- /dev/null
+++ b/Documentation/core-api/wrappers/atomic_bitops.rst
@@ -0,0 +1,18 @@
+.. SPDX-License-Identifier: GPL-2.0
+ This is a simple wrapper to bring atomic_bitops.txt into the RST world
+ until such a time as that file can be converted directly.
+
+=============
+Atomic bitops
+=============
+
+.. raw:: latex
+
+ \footnotesize
+
+.. include:: ../../atomic_bitops.txt
+ :literal:
+
+.. raw:: latex
+
+ \normalsize
diff --git a/Documentation/core-api/wrappers/atomic_t.rst b/Documentation/core-api/wrappers/atomic_t.rst
new file mode 100644
index 000000000000..ed109a964c77
--- /dev/null
+++ b/Documentation/core-api/wrappers/atomic_t.rst
@@ -0,0 +1,19 @@
+.. SPDX-License-Identifier: GPL-2.0
+ This is a simple wrapper to bring atomic_t.txt into the RST world
+ until such a time as that file can be converted directly.
+
+============
+Atomic types
+============
+
+.. raw:: latex
+
+ \footnotesize
+
+.. include:: ../../atomic_t.txt
+ :literal:
+
+.. raw:: latex
+
+ \normalsize
+
diff --git a/Documentation/core-api/wrappers/memory-barriers.rst b/Documentation/core-api/wrappers/memory-barriers.rst
new file mode 100644
index 000000000000..532460b5e3eb
--- /dev/null
+++ b/Documentation/core-api/wrappers/memory-barriers.rst
@@ -0,0 +1,18 @@
+.. SPDX-License-Identifier: GPL-2.0
+ This is a simple wrapper to bring memory-barriers.txt into the RST world
+ until such a time as that file can be converted directly.
+
+============================
+Linux kernel memory barriers
+============================
+
+.. raw:: latex
+
+ \footnotesize
+
+.. include:: ../../memory-barriers.txt
+ :literal:
+
+.. raw:: latex
+
+ \normalsize
diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst
index 9c454de5a7f7..d9976069ed12 100644
--- a/Documentation/dev-tools/coccinelle.rst
+++ b/Documentation/dev-tools/coccinelle.rst
@@ -66,7 +66,7 @@ The wiki documentation always refers to the linux-next version of the script.
For Semantic Patch Language(SmPL) grammar documentation refer to:
-http://coccinelle.lip6.fr/documentation.php
+https://coccinelle.gitlabpages.inria.fr/website/docs/main_grammar.html
Using Coccinelle on the Linux kernel
------------------------------------
diff --git a/Documentation/dev-tools/index.rst b/Documentation/dev-tools/index.rst
index 4621eac290f4..6b0663075dc0 100644
--- a/Documentation/dev-tools/index.rst
+++ b/Documentation/dev-tools/index.rst
@@ -24,6 +24,7 @@ Documentation/dev-tools/testing-overview.rst
kcov
gcov
kasan
+ kmsan
ubsan
kmemleak
kcsan
diff --git a/Documentation/dev-tools/kasan.rst b/Documentation/dev-tools/kasan.rst
index 1772fd457fed..5c93ab915049 100644
--- a/Documentation/dev-tools/kasan.rst
+++ b/Documentation/dev-tools/kasan.rst
@@ -111,9 +111,17 @@ parameter can be used to control panic and reporting behaviour:
report or also panic the kernel (default: ``report``). The panic happens even
if ``kasan_multi_shot`` is enabled.
-Hardware Tag-Based KASAN mode (see the section about various modes below) is
-intended for use in production as a security mitigation. Therefore, it supports
-additional boot parameters that allow disabling KASAN or controlling features:
+Software and Hardware Tag-Based KASAN modes (see the section about various
+modes below) support altering stack trace collection behavior:
+
+- ``kasan.stacktrace=off`` or ``=on`` disables or enables alloc and free stack
+ traces collection (default: ``on``).
+- ``kasan.stack_ring_size=<number of entries>`` specifies the number of entries
+ in the stack ring (default: ``32768``).
+
+Hardware Tag-Based KASAN mode is intended for use in production as a security
+mitigation. Therefore, it supports additional boot parameters that allow
+disabling KASAN altogether or controlling its features:
- ``kasan=off`` or ``=on`` controls whether KASAN is enabled (default: ``on``).
@@ -132,9 +140,6 @@ additional boot parameters that allow disabling KASAN or controlling features:
- ``kasan.vmalloc=off`` or ``=on`` disables or enables tagging of vmalloc
allocations (default: ``on``).
-- ``kasan.stacktrace=off`` or ``=on`` disables or enables alloc and free stack
- traces collection (default: ``on``).
-
Error reports
~~~~~~~~~~~~~
diff --git a/Documentation/dev-tools/kmemleak.rst b/Documentation/dev-tools/kmemleak.rst
index 1c935f41cd3a..5483fd39ef29 100644
--- a/Documentation/dev-tools/kmemleak.rst
+++ b/Documentation/dev-tools/kmemleak.rst
@@ -174,7 +174,6 @@ mapping:
- ``kmemleak_alloc_phys``
- ``kmemleak_free_part_phys``
-- ``kmemleak_not_leak_phys``
- ``kmemleak_ignore_phys``
Dealing with false positives/negatives
diff --git a/Documentation/dev-tools/kmsan.rst b/Documentation/dev-tools/kmsan.rst
new file mode 100644
index 000000000000..2a53a801198c
--- /dev/null
+++ b/Documentation/dev-tools/kmsan.rst
@@ -0,0 +1,427 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. Copyright (C) 2022, Google LLC.
+
+===================================
+The Kernel Memory Sanitizer (KMSAN)
+===================================
+
+KMSAN is a dynamic error detector aimed at finding uses of uninitialized
+values. It is based on compiler instrumentation, and is quite similar to the
+userspace `MemorySanitizer tool`_.
+
+An important note is that KMSAN is not intended for production use, because it
+drastically increases kernel memory footprint and slows the whole system down.
+
+Usage
+=====
+
+Building the kernel
+-------------------
+
+In order to build a kernel with KMSAN you will need a fresh Clang (14.0.6+).
+Please refer to `LLVM documentation`_ for the instructions on how to build Clang.
+
+Now configure and build the kernel with CONFIG_KMSAN enabled.
+
+Example report
+--------------
+
+Here is an example of a KMSAN report::
+
+ =====================================================
+ BUG: KMSAN: uninit-value in test_uninit_kmsan_check_memory+0x1be/0x380 [kmsan_test]
+ test_uninit_kmsan_check_memory+0x1be/0x380 mm/kmsan/kmsan_test.c:273
+ kunit_run_case_internal lib/kunit/test.c:333
+ kunit_try_run_case+0x206/0x420 lib/kunit/test.c:374
+ kunit_generic_run_threadfn_adapter+0x6d/0xc0 lib/kunit/try-catch.c:28
+ kthread+0x721/0x850 kernel/kthread.c:327
+ ret_from_fork+0x1f/0x30 ??:?
+
+ Uninit was stored to memory at:
+ do_uninit_local_array+0xfa/0x110 mm/kmsan/kmsan_test.c:260
+ test_uninit_kmsan_check_memory+0x1a2/0x380 mm/kmsan/kmsan_test.c:271
+ kunit_run_case_internal lib/kunit/test.c:333
+ kunit_try_run_case+0x206/0x420 lib/kunit/test.c:374
+ kunit_generic_run_threadfn_adapter+0x6d/0xc0 lib/kunit/try-catch.c:28
+ kthread+0x721/0x850 kernel/kthread.c:327
+ ret_from_fork+0x1f/0x30 ??:?
+
+ Local variable uninit created at:
+ do_uninit_local_array+0x4a/0x110 mm/kmsan/kmsan_test.c:256
+ test_uninit_kmsan_check_memory+0x1a2/0x380 mm/kmsan/kmsan_test.c:271
+
+ Bytes 4-7 of 8 are uninitialized
+ Memory access of size 8 starts at ffff888083fe3da0
+
+ CPU: 0 PID: 6731 Comm: kunit_try_catch Tainted: G B E 5.16.0-rc3+ #104
+ Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
+ =====================================================
+
+The report says that the local variable ``uninit`` was created uninitialized in
+``do_uninit_local_array()``. The third stack trace corresponds to the place
+where this variable was created.
+
+The first stack trace shows where the uninit value was used (in
+``test_uninit_kmsan_check_memory()``). The tool shows the bytes which were left
+uninitialized in the local variable, as well as the stack where the value was
+copied to another memory location before use.
+
+A use of uninitialized value ``v`` is reported by KMSAN in the following cases:
+ - in a condition, e.g. ``if (v) { ... }``;
+ - in an indexing or pointer dereferencing, e.g. ``array[v]`` or ``*v``;
+ - when it is copied to userspace or hardware, e.g. ``copy_to_user(..., &v, ...)``;
+ - when it is passed as an argument to a function, and
+ ``CONFIG_KMSAN_CHECK_PARAM_RETVAL`` is enabled (see below).
+
+The mentioned cases (apart from copying data to userspace or hardware, which is
+a security issue) are considered undefined behavior from the C11 Standard point
+of view.
+
+Disabling the instrumentation
+-----------------------------
+
+A function can be marked with ``__no_kmsan_checks``. Doing so makes KMSAN
+ignore uninitialized values in that function and mark its output as initialized.
+As a result, the user will not get KMSAN reports related to that function.
+
+Another function attribute supported by KMSAN is ``__no_sanitize_memory``.
+Applying this attribute to a function will result in KMSAN not instrumenting
+it, which can be helpful if we do not want the compiler to interfere with some
+low-level code (e.g. that marked with ``noinstr`` which implicitly adds
+``__no_sanitize_memory``).
+
+This however comes at a cost: stack allocations from such functions will have
+incorrect shadow/origin values, likely leading to false positives. Functions
+called from non-instrumented code may also receive incorrect metadata for their
+parameters.
+
+As a rule of thumb, avoid using ``__no_sanitize_memory`` explicitly.
+
+It is also possible to disable KMSAN for a single file (e.g. main.o)::
+
+ KMSAN_SANITIZE_main.o := n
+
+or for the whole directory::
+
+ KMSAN_SANITIZE := n
+
+in the Makefile. Think of this as applying ``__no_sanitize_memory`` to every
+function in the file or directory. Most users won't need KMSAN_SANITIZE, unless
+their code gets broken by KMSAN (e.g. runs at early boot time).
+
+Support
+=======
+
+In order for KMSAN to work the kernel must be built with Clang, which so far is
+the only compiler that has KMSAN support. The kernel instrumentation pass is
+based on the userspace `MemorySanitizer tool`_.
+
+The runtime library only supports x86_64 at the moment.
+
+How KMSAN works
+===============
+
+KMSAN shadow memory
+-------------------
+
+KMSAN associates a metadata byte (also called shadow byte) with every byte of
+kernel memory. A bit in the shadow byte is set iff the corresponding bit of the
+kernel memory byte is uninitialized. Marking the memory uninitialized (i.e.
+setting its shadow bytes to ``0xff``) is called poisoning, marking it
+initialized (setting the shadow bytes to ``0x00``) is called unpoisoning.
+
+When a new variable is allocated on the stack, it is poisoned by default by
+instrumentation code inserted by the compiler (unless it is a stack variable
+that is immediately initialized). Any new heap allocation done without
+``__GFP_ZERO`` is also poisoned.
+
+Compiler instrumentation also tracks the shadow values as they are used along
+the code. When needed, instrumentation code invokes the runtime library in
+``mm/kmsan/`` to persist shadow values.
+
+The shadow value of a basic or compound type is an array of bytes of the same
+length. When a constant value is written into memory, that memory is unpoisoned.
+When a value is read from memory, its shadow memory is also obtained and
+propagated into all the operations which use that value. For every instruction
+that takes one or more values the compiler generates code that calculates the
+shadow of the result depending on those values and their shadows.
+
+Example::
+
+ int a = 0xff; // i.e. 0x000000ff
+ int b;
+ int c = a | b;
+
+In this case the shadow of ``a`` is ``0``, shadow of ``b`` is ``0xffffffff``,
+shadow of ``c`` is ``0xffffff00``. This means that the upper three bytes of
+``c`` are uninitialized, while the lower byte is initialized.
+
+Origin tracking
+---------------
+
+Every four bytes of kernel memory also have a so-called origin mapped to them.
+This origin describes the point in program execution at which the uninitialized
+value was created. Every origin is associated with either the full allocation
+stack (for heap-allocated memory), or the function containing the uninitialized
+variable (for locals).
+
+When an uninitialized variable is allocated on stack or heap, a new origin
+value is created, and that variable's origin is filled with that value. When a
+value is read from memory, its origin is also read and kept together with the
+shadow. For every instruction that takes one or more values, the origin of the
+result is one of the origins corresponding to any of the uninitialized inputs.
+If a poisoned value is written into memory, its origin is written to the
+corresponding storage as well.
+
+Example 1::
+
+ int a = 42;
+ int b;
+ int c = a + b;
+
+In this case the origin of ``b`` is generated upon function entry, and is
+stored to the origin of ``c`` right before the addition result is written into
+memory.
+
+Several variables may share the same origin address, if they are stored in the
+same four-byte chunk. In this case every write to either variable updates the
+origin for all of them. We have to sacrifice precision in this case, because
+storing origins for individual bits (and even bytes) would be too costly.
+
+Example 2::
+
+ int combine(short a, short b) {
+ union ret_t {
+ int i;
+ short s[2];
+ } ret;
+ ret.s[0] = a;
+ ret.s[1] = b;
+ return ret.i;
+ }
+
+If ``a`` is initialized and ``b`` is not, the shadow of the result would be
+0xffff0000, and the origin of the result would be the origin of ``b``.
+``ret.s[0]`` would have the same origin, but it will never be used, because
+that variable is initialized.
+
+If both function arguments are uninitialized, only the origin of the second
+argument is preserved.
+
+Origin chaining
+~~~~~~~~~~~~~~~
+
+To ease debugging, KMSAN creates a new origin for every store of an
+uninitialized value to memory. The new origin references both its creation stack
+and the previous origin the value had. This may cause increased memory
+consumption, so we limit the length of origin chains in the runtime.
+
+Clang instrumentation API
+-------------------------
+
+Clang instrumentation pass inserts calls to functions defined in
+``mm/kmsan/nstrumentation.c`` into the kernel code.
+
+Shadow manipulation
+~~~~~~~~~~~~~~~~~~~
+
+For every memory access the compiler emits a call to a function that returns a
+pair of pointers to the shadow and origin addresses of the given memory::
+
+ typedef struct {
+ void *shadow, *origin;
+ } shadow_origin_ptr_t
+
+ shadow_origin_ptr_t __msan_metadata_ptr_for_load_{1,2,4,8}(void *addr)
+ shadow_origin_ptr_t __msan_metadata_ptr_for_store_{1,2,4,8}(void *addr)
+ shadow_origin_ptr_t __msan_metadata_ptr_for_load_n(void *addr, uintptr_t size)
+ shadow_origin_ptr_t __msan_metadata_ptr_for_store_n(void *addr, uintptr_t size)
+
+The function name depends on the memory access size.
+
+The compiler makes sure that for every loaded value its shadow and origin
+values are read from memory. When a value is stored to memory, its shadow and
+origin are also stored using the metadata pointers.
+
+Handling locals
+~~~~~~~~~~~~~~~
+
+A special function is used to create a new origin value for a local variable and
+set the origin of that variable to that value::
+
+ void __msan_poison_alloca(void *addr, uintptr_t size, char *descr)
+
+Access to per-task data
+~~~~~~~~~~~~~~~~~~~~~~~
+
+At the beginning of every instrumented function KMSAN inserts a call to
+``__msan_get_context_state()``::
+
+ kmsan_context_state *__msan_get_context_state(void)
+
+``kmsan_context_state`` is declared in ``include/linux/kmsan.h``::
+
+ struct kmsan_context_state {
+ char param_tls[KMSAN_PARAM_SIZE];
+ char retval_tls[KMSAN_RETVAL_SIZE];
+ char va_arg_tls[KMSAN_PARAM_SIZE];
+ char va_arg_origin_tls[KMSAN_PARAM_SIZE];
+ u64 va_arg_overflow_size_tls;
+ char param_origin_tls[KMSAN_PARAM_SIZE];
+ depot_stack_handle_t retval_origin_tls;
+ };
+
+This structure is used by KMSAN to pass parameter shadows and origins between
+instrumented functions (unless the parameters are checked immediately by
+``CONFIG_KMSAN_CHECK_PARAM_RETVAL``).
+
+Passing uninitialized values to functions
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Clang's MemorySanitizer instrumentation has an option,
+``-fsanitize-memory-param-retval``, which makes the compiler check function
+parameters passed by value, as well as function return values.
+
+The option is controlled by ``CONFIG_KMSAN_CHECK_PARAM_RETVAL``, which is
+enabled by default to let KMSAN report uninitialized values earlier.
+Please refer to the `LKML discussion`_ for more details.
+
+Because of the way the checks are implemented in LLVM (they are only applied to
+parameters marked as ``noundef``), not all parameters are guaranteed to be
+checked, so we cannot give up the metadata storage in ``kmsan_context_state``.
+
+String functions
+~~~~~~~~~~~~~~~~
+
+The compiler replaces calls to ``memcpy()``/``memmove()``/``memset()`` with the
+following functions. These functions are also called when data structures are
+initialized or copied, making sure shadow and origin values are copied alongside
+with the data::
+
+ void *__msan_memcpy(void *dst, void *src, uintptr_t n)
+ void *__msan_memmove(void *dst, void *src, uintptr_t n)
+ void *__msan_memset(void *dst, int c, uintptr_t n)
+
+Error reporting
+~~~~~~~~~~~~~~~
+
+For each use of a value the compiler emits a shadow check that calls
+``__msan_warning()`` in the case that value is poisoned::
+
+ void __msan_warning(u32 origin)
+
+``__msan_warning()`` causes KMSAN runtime to print an error report.
+
+Inline assembly instrumentation
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+KMSAN instruments every inline assembly output with a call to::
+
+ void __msan_instrument_asm_store(void *addr, uintptr_t size)
+
+, which unpoisons the memory region.
+
+This approach may mask certain errors, but it also helps to avoid a lot of
+false positives in bitwise operations, atomics etc.
+
+Sometimes the pointers passed into inline assembly do not point to valid memory.
+In such cases they are ignored at runtime.
+
+
+Runtime library
+---------------
+
+The code is located in ``mm/kmsan/``.
+
+Per-task KMSAN state
+~~~~~~~~~~~~~~~~~~~~
+
+Every task_struct has an associated KMSAN task state that holds the KMSAN
+context (see above) and a per-task flag disallowing KMSAN reports::
+
+ struct kmsan_context {
+ ...
+ bool allow_reporting;
+ struct kmsan_context_state cstate;
+ ...
+ }
+
+ struct task_struct {
+ ...
+ struct kmsan_context kmsan;
+ ...
+ }
+
+KMSAN contexts
+~~~~~~~~~~~~~~
+
+When running in a kernel task context, KMSAN uses ``current->kmsan.cstate`` to
+hold the metadata for function parameters and return values.
+
+But in the case the kernel is running in the interrupt, softirq or NMI context,
+where ``current`` is unavailable, KMSAN switches to per-cpu interrupt state::
+
+ DEFINE_PER_CPU(struct kmsan_ctx, kmsan_percpu_ctx);
+
+Metadata allocation
+~~~~~~~~~~~~~~~~~~~
+
+There are several places in the kernel for which the metadata is stored.
+
+1. Each ``struct page`` instance contains two pointers to its shadow and
+origin pages::
+
+ struct page {
+ ...
+ struct page *shadow, *origin;
+ ...
+ };
+
+At boot-time, the kernel allocates shadow and origin pages for every available
+kernel page. This is done quite late, when the kernel address space is already
+fragmented, so normal data pages may arbitrarily interleave with the metadata
+pages.
+
+This means that in general for two contiguous memory pages their shadow/origin
+pages may not be contiguous. Consequently, if a memory access crosses the
+boundary of a memory block, accesses to shadow/origin memory may potentially
+corrupt other pages or read incorrect values from them.
+
+In practice, contiguous memory pages returned by the same ``alloc_pages()``
+call will have contiguous metadata, whereas if these pages belong to two
+different allocations their metadata pages can be fragmented.
+
+For the kernel data (``.data``, ``.bss`` etc.) and percpu memory regions
+there also are no guarantees on metadata contiguity.
+
+In the case ``__msan_metadata_ptr_for_XXX_YYY()`` hits the border between two
+pages with non-contiguous metadata, it returns pointers to fake shadow/origin regions::
+
+ char dummy_load_page[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE)));
+ char dummy_store_page[PAGE_SIZE] __attribute__((aligned(PAGE_SIZE)));
+
+``dummy_load_page`` is zero-initialized, so reads from it always yield zeroes.
+All stores to ``dummy_store_page`` are ignored.
+
+2. For vmalloc memory and modules, there is a direct mapping between the memory
+range, its shadow and origin. KMSAN reduces the vmalloc area by 3/4, making only
+the first quarter available to ``vmalloc()``. The second quarter of the vmalloc
+area contains shadow memory for the first quarter, the third one holds the
+origins. A small part of the fourth quarter contains shadow and origins for the
+kernel modules. Please refer to ``arch/x86/include/asm/pgtable_64_types.h`` for
+more details.
+
+When an array of pages is mapped into a contiguous virtual memory space, their
+shadow and origin pages are similarly mapped into contiguous regions.
+
+References
+==========
+
+E. Stepanov, K. Serebryany. `MemorySanitizer: fast detector of uninitialized
+memory use in C++
+<https://static.googleusercontent.com/media/research.google.com/en//pubs/archive/43308.pdf>`_.
+In Proceedings of CGO 2015.
+
+.. _MemorySanitizer tool: https://clang.llvm.org/docs/MemorySanitizer.html
+.. _LLVM documentation: https://llvm.org/docs/GettingStarted.html
+.. _LKML discussion: https://lore.kernel.org/all/20220614144853.3693273-1-glider@google.com/
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index a833ecf12fbc..12b575b76b20 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -208,6 +208,14 @@ In general, the rules for selftests are
Contributing new tests (details)
================================
+ * In your Makefile, use facilities from lib.mk by including it instead of
+ reinventing the wheel. Specify flags and binaries generation flags on
+ need basis before including lib.mk. ::
+
+ CFLAGS = $(KHDR_INCLUDES)
+ TEST_GEN_PROGS := close_range_test
+ include ../lib.mk
+
* Use TEST_GEN_XXX if such binaries or files are generated during
compiling.
@@ -230,13 +238,30 @@ Contributing new tests (details)
* First use the headers inside the kernel source and/or git repo, and then the
system headers. Headers for the kernel release as opposed to headers
installed by the distro on the system should be the primary focus to be able
- to find regressions.
+ to find regressions. Use KHDR_INCLUDES in Makefile to include headers from
+ the kernel source.
* If a test needs specific kernel config options enabled, add a config file in
the test directory to enable them.
e.g: tools/testing/selftests/android/config
+ * Create a .gitignore file inside test directory and add all generated objects
+ in it.
+
+ * Add new test name in TARGETS in selftests/Makefile::
+
+ TARGETS += android
+
+ * All changes should pass::
+
+ kselftest-{all,install,clean,gen_tar}
+ kselftest-{all,install,clean,gen_tar} O=abo_path
+ kselftest-{all,install,clean,gen_tar} O=rel_path
+ make -C tools/testing/selftests {all,install,clean,gen_tar}
+ make -C tools/testing/selftests {all,install,clean,gen_tar} O=abs_path
+ make -C tools/testing/selftests {all,install,clean,gen_tar} O=rel_path
+
Test Module
===========
@@ -250,6 +275,14 @@ assist writing kernel modules that are for use with kselftest:
- ``tools/testing/selftests/kselftest_module.h``
- ``tools/testing/selftests/kselftest/module.sh``
+Note that test modules should taint the kernel with TAINT_TEST. This will
+happen automatically for modules which are in the ``tools/testing/``
+directory, or for modules which use the ``kselftest_module.h`` header above.
+Otherwise, you'll need to add ``MODULE_INFO(test, "Y")`` to your module
+source. selftests which do not load modules typically should not taint the
+kernel, but in cases where a non-test module is loaded, TEST_TAINT can be
+applied from userspace by writing to ``/proc/sys/kernel/tainted``.
+
How to use
----------
@@ -287,7 +320,7 @@ A bare bones test module might look like this:
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
- #include "../tools/testing/selftests/kselftest/module.h"
+ #include "../tools/testing/selftests/kselftest_module.h"
KSTM_MODULE_GLOBALS();
@@ -308,6 +341,7 @@ A bare bones test module might look like this:
KSTM_MODULE_LOADERS(test_foo);
MODULE_AUTHOR("John Developer <jd@fooman.org>");
MODULE_LICENSE("GPL");
+ MODULE_INFO(test, "Y");
Example test script
-------------------
diff --git a/Documentation/dev-tools/kunit/architecture.rst b/Documentation/dev-tools/kunit/architecture.rst
index cf9e6e3eeae4..8efe792bdcb9 100644
--- a/Documentation/dev-tools/kunit/architecture.rst
+++ b/Documentation/dev-tools/kunit/architecture.rst
@@ -6,8 +6,8 @@ KUnit Architecture
The KUnit architecture can be divided into two parts:
-- Kernel testing library
-- kunit_tool (Command line test harness)
+- `In-Kernel Testing Framework`_
+- `kunit_tool (Command Line Test Harness)`_
In-Kernel Testing Framework
===========================
diff --git a/Documentation/dev-tools/kunit/faq.rst b/Documentation/dev-tools/kunit/faq.rst
index 172e239791a8..fae426f2634a 100644
--- a/Documentation/dev-tools/kunit/faq.rst
+++ b/Documentation/dev-tools/kunit/faq.rst
@@ -31,13 +31,16 @@ For the most part, the KUnit core framework (what we use to write the tests)
can compile to any architecture. It compiles like just another part of the
kernel and runs when the kernel boots, or when built as a module, when the
module is loaded. However, there is infrastructure, like the KUnit Wrapper
-(``tools/testing/kunit/kunit.py``) that does not support other architectures.
+(``tools/testing/kunit/kunit.py``) that might not support some architectures
+(see :ref:`kunit-on-qemu`).
In short, yes, you can run KUnit on other architectures, but it might require
more work than using KUnit on UML.
For more information, see :ref:`kunit-on-non-uml`.
+.. _kinds-of-tests:
+
What is the difference between a unit test and other kinds of tests?
====================================================================
Most existing tests for the Linux kernel would be categorized as an integration
@@ -95,8 +98,7 @@ things to try.
seeing. When tests are built-in, they will execute when the kernel boots, and
modules will automatically execute associated tests when loaded. Test results
can be collected from ``/sys/kernel/debug/kunit/<test suite>/results``, and
- can be parsed with ``kunit.py parse``. For more details, see "KUnit on
- non-UML architectures" in Documentation/dev-tools/kunit/usage.rst.
+ can be parsed with ``kunit.py parse``. For more details, see :ref:`kunit-on-qemu`.
If none of the above tricks help, you are always welcome to email any issues to
kunit-dev@googlegroups.com.
diff --git a/Documentation/dev-tools/kunit/index.rst b/Documentation/dev-tools/kunit/index.rst
index 595205348d2d..f5d13f1d37be 100644
--- a/Documentation/dev-tools/kunit/index.rst
+++ b/Documentation/dev-tools/kunit/index.rst
@@ -13,7 +13,6 @@ KUnit - Linux Kernel Unit Testing
run_wrapper
run_manual
usage
- kunit-tool
api/index
style
faq
@@ -29,10 +28,10 @@ KUnit (Kernel unit testing framework) provides a common framework for
unit tests within the Linux kernel. Using KUnit, you can define groups
of test cases called test suites. The tests either run on kernel boot
if built-in, or load as a module. KUnit automatically flags and reports
-failed test cases in the kernel log. The test results appear in `TAP
-(Test Anything Protocol) format <https://testanything.org/>`_. It is inspired by
-JUnit, Python’s unittest.mock, and GoogleTest/GoogleMock (C++ unit testing
-framework).
+failed test cases in the kernel log. The test results appear in
+:doc:`KTAP (Kernel - Test Anything Protocol) format</dev-tools/ktap>`.
+It is inspired by JUnit, Python’s unittest.mock, and GoogleTest/GoogleMock
+(C++ unit testing framework).
KUnit tests are part of the kernel, written in the C (programming)
language, and test parts of the Kernel implementation (example: a C
@@ -46,8 +45,9 @@ internal system functionality. KUnit runs in kernel space and is not
restricted to things exposed to user-space.
In addition, KUnit has kunit_tool, a script (``tools/testing/kunit/kunit.py``)
-that configures the Linux kernel, runs KUnit tests under QEMU or UML (`User Mode
-Linux <http://user-mode-linux.sourceforge.net/>`_), parses the test results and
+that configures the Linux kernel, runs KUnit tests under QEMU or UML
+(:doc:`User Mode Linux </virt/uml/user_mode_linux_howto_v2>`),
+parses the test results and
displays them in a user friendly manner.
Features
@@ -95,6 +95,8 @@ Unit Testing Advantages
- Improves code quality.
- Encourages writing testable code.
+Read also :ref:`kinds-of-tests`.
+
How do I use it?
================
@@ -107,7 +109,5 @@ How do I use it?
examples.
* Documentation/dev-tools/kunit/api/index.rst - KUnit APIs
used for testing.
-* Documentation/dev-tools/kunit/kunit-tool.rst - kunit_tool helper
- script.
* Documentation/dev-tools/kunit/faq.rst - KUnit common questions and
answers.
diff --git a/Documentation/dev-tools/kunit/kunit-tool.rst b/Documentation/dev-tools/kunit/kunit-tool.rst
deleted file mode 100644
index ae52e0f489f9..000000000000
--- a/Documentation/dev-tools/kunit/kunit-tool.rst
+++ /dev/null
@@ -1,232 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-=================
-kunit_tool How-To
-=================
-
-What is kunit_tool?
-===================
-
-kunit_tool is a script (``tools/testing/kunit/kunit.py``) that aids in building
-the Linux kernel as UML (`User Mode Linux
-<http://user-mode-linux.sourceforge.net/>`_), running KUnit tests, parsing
-the test results and displaying them in a user friendly manner.
-
-kunit_tool addresses the problem of being able to run tests without needing a
-virtual machine or actual hardware with User Mode Linux. User Mode Linux is a
-Linux architecture, like ARM or x86; however, unlike other architectures it
-compiles the kernel as a standalone Linux executable that can be run like any
-other program directly inside of a host operating system. To be clear, it does
-not require any virtualization support: it is just a regular program.
-
-What is a .kunitconfig?
-=======================
-
-It's just a defconfig that kunit_tool looks for in the build directory
-(``.kunit`` by default). kunit_tool uses it to generate a .config as you might
-expect. In addition, it verifies that the generated .config contains the CONFIG
-options in the .kunitconfig; the reason it does this is so that it is easy to
-be sure that a CONFIG that enables a test actually ends up in the .config.
-
-It's also possible to pass a separate .kunitconfig fragment to kunit_tool,
-which is useful if you have several different groups of tests you wish
-to run independently, or if you want to use pre-defined test configs for
-certain subsystems.
-
-Getting Started with kunit_tool
-===============================
-
-If a kunitconfig is present at the root directory, all you have to do is:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run
-
-However, you most likely want to use it with the following options:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all`
-
-- ``--timeout`` sets a maximum amount of time to allow tests to run.
-- ``--jobs`` sets the number of threads to use to build the kernel.
-
-.. note::
- This command will work even without a .kunitconfig file: if no
- .kunitconfig is present, a default one will be used instead.
-
-If you wish to use a different .kunitconfig file (such as one provided for
-testing a particular subsystem), you can pass it as an option.
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run --kunitconfig=fs/ext4/.kunitconfig
-
-For a list of all the flags supported by kunit_tool, you can run:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run --help
-
-Configuring, Building, and Running Tests
-========================================
-
-It's also possible to run just parts of the KUnit build process independently,
-which is useful if you want to make manual changes to part of the process.
-
-A .config can be generated from a .kunitconfig by using the ``config`` argument
-when running kunit_tool:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py config
-
-Similarly, if you just want to build a KUnit kernel from the current .config,
-you can use the ``build`` argument:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py build
-
-And, if you already have a built UML kernel with built-in KUnit tests, you can
-run the kernel and display the test results with the ``exec`` argument:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py exec
-
-The ``run`` command which is discussed above is equivalent to running all three
-of these in sequence.
-
-All of these commands accept a number of optional command-line arguments. The
-``--help`` flag will give a complete list of these, or keep reading this page
-for a guide to some of the more useful ones.
-
-Parsing Test Results
-====================
-
-KUnit tests output their results in TAP (Test Anything Protocol) format.
-kunit_tool will, when running tests, parse this output and print a summary
-which is much more pleasant to read. If you wish to look at the raw test
-results in TAP format, you can pass the ``--raw_output`` argument.
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run --raw_output
-
-The raw output from test runs may contain other, non-KUnit kernel log
-lines. You can see just KUnit output with ``--raw_output=kunit``:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run --raw_output=kunit
-
-If you have KUnit results in their raw TAP format, you can parse them and print
-the human-readable summary with the ``parse`` command for kunit_tool. This
-accepts a filename for an argument, or will read from standard input.
-
-.. code-block:: bash
-
- # Reading from a file
- ./tools/testing/kunit/kunit.py parse /var/log/dmesg
- # Reading from stdin
- dmesg | ./tools/testing/kunit/kunit.py parse
-
-This is very useful if you wish to run tests in a configuration not supported
-by kunit_tool (such as on real hardware, or an unsupported architecture).
-
-Filtering Tests
-===============
-
-It's possible to run only a subset of the tests built into a kernel by passing
-a filter to the ``exec`` or ``run`` commands. For example, if you only wanted
-to run KUnit resource tests, you could use:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run 'kunit-resource*'
-
-This uses the standard glob format for wildcards.
-
-Running Tests on QEMU
-=====================
-
-kunit_tool supports running tests on QEMU as well as via UML (as mentioned
-elsewhere). The default way of running tests on QEMU requires two flags:
-
-``--arch``
- Selects a collection of configs (Kconfig as well as QEMU configs
- options, etc) that allow KUnit tests to be run on the specified
- architecture in a minimal way; this is usually not much slower than
- using UML. The architecture argument is the same as the name of the
- option passed to the ``ARCH`` variable used by Kbuild. Not all
- architectures are currently supported by this flag, but can be handled
- by the ``--qemu_config`` discussed later. If ``um`` is passed (or this
- this flag is ignored) the tests will run via UML. Non-UML architectures,
- e.g. i386, x86_64, arm, um, etc. Non-UML run on QEMU.
-
-``--cross_compile``
- Specifies the use of a toolchain by Kbuild. The argument passed here is
- the same passed to the ``CROSS_COMPILE`` variable used by Kbuild. As a
- reminder this will be the prefix for the toolchain binaries such as gcc
- for example ``sparc64-linux-gnu-`` if you have the sparc toolchain
- installed on your system, or
- ``$HOME/toolchains/microblaze/gcc-9.2.0-nolibc/microblaze-linux/bin/microblaze-linux-``
- if you have downloaded the microblaze toolchain from the 0-day website
- to a directory in your home directory called ``toolchains``.
-
-In many cases it is likely that you may want to run an architecture which is
-not supported by the ``--arch`` flag, or you may want to just run KUnit tests
-on QEMU using a non-default configuration. For this use case, you can write
-your own QemuConfig. These QemuConfigs are written in Python. They must have an
-import line ``from ..qemu_config import QemuArchParams`` at the top of the file
-and the file must contain a variable called ``QEMU_ARCH`` that has an instance
-of ``QemuArchParams`` assigned to it. An example can be seen in
-``tools/testing/kunit/qemu_configs/x86_64.py``.
-
-Once you have a QemuConfig you can pass it into kunit_tool using the
-``--qemu_config`` flag; when used this flag replaces the ``--arch`` flag. If we
-were to do this with the ``x86_64.py`` example from above, the invocation would
-look something like this:
-
-.. code-block:: bash
-
- ./tools/testing/kunit/kunit.py run \
- --timeout=60 \
- --jobs=12 \
- --qemu_config=./tools/testing/kunit/qemu_configs/x86_64.py
-
-Other Useful Options
-====================
-
-kunit_tool has a number of other command-line arguments which can be useful
-when adapting it to fit your environment or needs.
-
-Some of the more useful ones are:
-
-``--help``
- Lists all of the available options. Note that different commands
- (``config``, ``build``, ``run``, etc) will have different supported
- options. Place ``--help`` before the command to list common options,
- and after the command for options specific to that command.
-
-``--build_dir``
- Specifies the build directory that kunit_tool will use. This is where
- the .kunitconfig file is located, as well as where the .config and
- compiled kernel will be placed. Defaults to ``.kunit``.
-
-``--make_options``
- Specifies additional options to pass to ``make`` when compiling a
- kernel (with the ``build`` or ``run`` commands). For example, to enable
- compiler warnings, you can pass ``--make_options W=1``.
-
-``--alltests``
- Builds a UML kernel with all config options enabled using ``make
- allyesconfig``. This allows you to run as many tests as is possible,
- but is very slow and prone to breakage as new options are added or
- modified. In most cases, enabling all tests which have satisfied
- dependencies by adding ``CONFIG_KUNIT_ALL_TESTS=1`` to your
- .kunitconfig is preferable.
-
-There are several other options (and new ones are often added), so do check
-``--help`` if you're looking for something not mentioned here.
diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst
index 653985ce9cae..6b33caf6c8ab 100644
--- a/Documentation/dev-tools/kunit/run_wrapper.rst
+++ b/Documentation/dev-tools/kunit/run_wrapper.rst
@@ -1,8 +1,8 @@
.. SPDX-License-Identifier: GPL-2.0
-=========================
-Run Tests with kunit_tool
-=========================
+=============================
+Running tests with kunit_tool
+=============================
We can either run KUnit tests using kunit_tool or can run tests
manually, and then use kunit_tool to parse the results. To run tests
@@ -22,7 +22,7 @@ We should see the following:
.. code-block::
- Generating .config...
+ Configuring KUnit Kernel ...
Building KUnit kernel...
Starting KUnit kernel...
@@ -30,7 +30,7 @@ We may want to use the following options:
.. code-block::
- ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all
+ ./tools/testing/kunit/kunit.py run --timeout=30 --jobs=`nproc --all`
- ``--timeout`` sets a maximum amount of time for tests to run.
- ``--jobs`` sets the number of threads to build the kernel.
@@ -58,8 +58,8 @@ To view kunit_tool flags (optional command-line arguments), run:
./tools/testing/kunit/kunit.py run --help
-Create a ``.kunitconfig`` File
-===============================
+Creating a ``.kunitconfig`` file
+================================
If we want to run a specific set of tests (rather than those listed
in the KUnit ``defconfig``), we can provide Kconfig options in the
@@ -98,8 +98,8 @@ have not included the options dependencies.
The build dir needs to be set for ``make menuconfig`` to
work, therefore by default use ``make O=.kunit menuconfig``.
-Configure, Build, and Run Tests
-===============================
+Configuring, building, and running tests
+========================================
If we want to make manual changes to the KUnit build process, we
can run part of the KUnit build process independently.
@@ -125,11 +125,11 @@ argument:
./tools/testing/kunit/kunit.py exec
-The ``run`` command discussed in section: **Run Tests with kunit_tool**,
+The ``run`` command discussed in section: **Running tests with kunit_tool**,
is equivalent to running the above three commands in sequence.
-Parse Test Results
-==================
+Parsing test results
+====================
KUnit tests output displays results in TAP (Test Anything Protocol)
format. When running tests, kunit_tool parses this output and prints
@@ -152,8 +152,8 @@ standard input.
# Reading from stdin
dmesg | ./tools/testing/kunit/kunit.py parse
-Run Selected Test Suites
-========================
+Filtering tests
+===============
By passing a bash style glob filter to the ``exec`` or ``run``
commands, we can run a subset of the tests built into a kernel . For
@@ -165,8 +165,10 @@ example: if we only want to run KUnit resource tests, use:
This uses the standard glob format with wildcard characters.
-Run Tests on qemu
-=================
+.. _kunit-on-qemu:
+
+Running tests on QEMU
+=====================
kunit_tool supports running tests on qemu as well as
via UML. To run tests on qemu, by default it requires two flags:
@@ -192,6 +194,21 @@ via UML. To run tests on qemu, by default it requires two flags:
if we have downloaded the microblaze toolchain from the 0-day
website to a directory in our home directory called toolchains.
+This means that for most architectures, running under qemu is as simple as:
+
+.. code-block:: bash
+
+ ./tools/testing/kunit/kunit.py run --arch=x86_64
+
+When cross-compiling, we'll likely need to specify a different toolchain, for
+example:
+
+.. code-block:: bash
+
+ ./tools/testing/kunit/kunit.py run \
+ --arch=s390 \
+ --cross_compile=s390x-linux-gnu-
+
If we want to run KUnit tests on an architecture not supported by
the ``--arch`` flag, or want to run KUnit tests on qemu using a
non-default configuration; then we can write our own``QemuConfig``.
@@ -214,14 +231,11 @@ as
--jobs=12 \
--qemu_config=./tools/testing/kunit/qemu_configs/x86_64.py
-To run existing KUnit tests on non-UML architectures, see:
-Documentation/dev-tools/kunit/non_uml.rst.
-
-Command-Line Arguments
-======================
+Running command-line arguments
+==============================
kunit_tool has a number of other command-line arguments which can
-be useful for our test environment. Below the most commonly used
+be useful for our test environment. Below are the most commonly used
command line arguments:
- ``--help``: Lists all available options. To list common options,
@@ -245,3 +259,64 @@ command line arguments:
added or modified. Instead, enable all tests
which have satisfied dependencies by adding
``CONFIG_KUNIT_ALL_TESTS=y`` to your ``.kunitconfig``.
+
+- ``--kunitconfig``: Specifies the path or the directory of the ``.kunitconfig``
+ file. For example:
+
+ - ``lib/kunit/.kunitconfig`` can be the path of the file.
+
+ - ``lib/kunit`` can be the directory in which the file is located.
+
+ This file is used to build and run with a predefined set of tests
+ and their dependencies. For example, to run tests for a given subsystem.
+
+- ``--kconfig_add``: Specifies additional configuration options to be
+ appended to the ``.kunitconfig`` file. For example:
+
+ .. code-block::
+
+ ./tools/testing/kunit/kunit.py run --kconfig_add CONFIG_KASAN=y
+
+- ``--arch``: Runs tests on the specified architecture. The architecture
+ argument is same as the Kbuild ARCH environment variable.
+ For example, i386, x86_64, arm, um, etc. Non-UML architectures run on qemu.
+ Default is `um`.
+
+- ``--cross_compile``: Specifies the Kbuild toolchain. It passes the
+ same argument as passed to the ``CROSS_COMPILE`` variable used by
+ Kbuild. This will be the prefix for the toolchain
+ binaries such as GCC. For example:
+
+ - ``sparc64-linux-gnu-`` if we have the sparc toolchain installed on
+ our system.
+
+ - ``$HOME/toolchains/microblaze/gcc-9.2.0-nolibc/microblaze-linux/bin/microblaze-linux``
+ if we have downloaded the microblaze toolchain from the 0-day
+ website to a specified path in our home directory called toolchains.
+
+- ``--qemu_config``: Specifies the path to a file containing a
+ custom qemu architecture definition. This should be a python file
+ containing a `QemuArchParams` object.
+
+- ``--qemu_args``: Specifies additional qemu arguments, for example, ``-smp 8``.
+
+- ``--jobs``: Specifies the number of jobs (commands) to run simultaneously.
+ By default, this is set to the number of cores on your system.
+
+- ``--timeout``: Specifies the maximum number of seconds allowed for all tests to run.
+ This does not include the time taken to build the tests.
+
+- ``--kernel_args``: Specifies additional kernel command-line arguments. May be repeated.
+
+- ``--run_isolated``: If set, boots the kernel for each individual suite/test.
+ This is useful for debugging a non-hermetic test, one that
+ might pass/fail based on what ran before it.
+
+- ``--raw_output``: If set, generates unformatted output from kernel. Possible options are:
+
+ - ``all``: To view the full kernel output, use ``--raw_output=all``.
+
+ - ``kunit``: This is the default option and filters to KUnit output. Use ``--raw_output`` or ``--raw_output=kunit``.
+
+- ``--json``: If set, stores the test results in a JSON format and prints to `stdout` or
+ saves to a file if a filename is specified.
diff --git a/Documentation/dev-tools/kunit/running_tips.rst b/Documentation/dev-tools/kunit/running_tips.rst
index c36f6760087d..8e8c493f17d1 100644
--- a/Documentation/dev-tools/kunit/running_tips.rst
+++ b/Documentation/dev-tools/kunit/running_tips.rst
@@ -15,7 +15,7 @@ It can be handy to create a bash function like:
.. code-block:: bash
function run_kunit() {
- ( cd "$(git rev-parse --show-toplevel)" && ./tools/testing/kunit/kunit.py run $@ )
+ ( cd "$(git rev-parse --show-toplevel)" && ./tools/testing/kunit/kunit.py run "$@" )
}
.. note::
@@ -123,8 +123,7 @@ Putting it together into a copy-pastable sequence of commands:
.. code-block:: bash
# Append coverage options to the current config
- $ echo -e "CONFIG_DEBUG_KERNEL=y\nCONFIG_DEBUG_INFO=y\nCONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y\nCONFIG_GCOV=y" >> .kunit/.kunitconfig
- $ ./tools/testing/kunit/kunit.py run
+ $ ./tools/testing/kunit/kunit.py run --kunitconfig=.kunit/ --kunitconfig=tools/testing/kunit/configs/coverage_uml.config
# Extract the coverage information from the build dir (.kunit/)
$ lcov -t "my_kunit_tests" -o coverage.info -c -d .kunit/
diff --git a/Documentation/dev-tools/kunit/start.rst b/Documentation/dev-tools/kunit/start.rst
index 867a4bba6bf6..f4f504f1fb15 100644
--- a/Documentation/dev-tools/kunit/start.rst
+++ b/Documentation/dev-tools/kunit/start.rst
@@ -4,6 +4,10 @@
Getting Started
===============
+This page contains an overview of the kunit_tool and KUnit framework,
+teaching how to run existing tests and then how to write a simple test case,
+and covers common problems users face when using KUnit for the first time.
+
Installing Dependencies
=======================
KUnit has the same dependencies as the Linux kernel. As long as you can
@@ -19,30 +23,53 @@ can run kunit_tool:
./tools/testing/kunit/kunit.py run
-For more information on this wrapper, see:
-Documentation/dev-tools/kunit/run_wrapper.rst.
+.. note ::
+ You may see the following error:
+ "The source tree is not clean, please run 'make ARCH=um mrproper'"
-Creating a ``.kunitconfig``
----------------------------
+ This happens because internally kunit.py specifies ``.kunit``
+ (default option) as the build directory in the command ``make O=output/dir``
+ through the argument ``--build_dir``. Hence, before starting an
+ out-of-tree build, the source tree must be clean.
-By default, kunit_tool runs a selection of tests. However, you can specify which
-unit tests to run by creating a ``.kunitconfig`` file with kernel config options
-that enable only a specific set of tests and their dependencies.
-The ``.kunitconfig`` file contains a list of kconfig options which are required
-to run the desired targets. The ``.kunitconfig`` also contains any other test
-specific config options, such as test dependencies. For example: the
-``FAT_FS`` tests - ``FAT_KUNIT_TEST``, depends on
-``FAT_FS``. ``FAT_FS`` can be enabled by selecting either ``MSDOS_FS``
-or ``VFAT_FS``. To run ``FAT_KUNIT_TEST``, the ``.kunitconfig`` has:
+ There is also the same caveat mentioned in the "Build directory for
+ the kernel" section of the :doc:`admin-guide </admin-guide/README>`,
+ that is, its use, it must be used for all invocations of ``make``.
+ The good news is that it can indeed be solved by running
+ ``make ARCH=um mrproper``, just be aware that this will delete the
+ current configuration and all generated files.
-.. code-block:: none
+If everything worked correctly, you should see the following:
- CONFIG_KUNIT=y
- CONFIG_MSDOS_FS=y
- CONFIG_FAT_KUNIT_TEST=y
+.. code-block::
-1. A good starting point for the ``.kunitconfig`` is the KUnit default config.
- You can generate it by running:
+ Configuring KUnit Kernel ...
+ Building KUnit Kernel ...
+ Starting KUnit Kernel ...
+
+The tests will pass or fail.
+
+.. note ::
+ Because it is building a lot of sources for the first time,
+ the ``Building KUnit Kernel`` step may take a while.
+
+For detailed information on this wrapper, see:
+Documentation/dev-tools/kunit/run_wrapper.rst.
+
+Selecting which tests to run
+----------------------------
+
+By default, kunit_tool runs all tests reachable with minimal configuration,
+that is, using default values for most of the kconfig options. However,
+you can select which tests to run by:
+
+- `Customizing Kconfig`_ used to compile the kernel, or
+- `Filtering tests by name`_ to select specifically which compiled tests to run.
+
+Customizing Kconfig
+~~~~~~~~~~~~~~~~~~~
+A good starting point for the ``.kunitconfig`` is the KUnit default config.
+If you didn't run ``kunit.py run`` yet, you can generate it by running:
.. code-block:: bash
@@ -54,48 +81,69 @@ or ``VFAT_FS``. To run ``FAT_KUNIT_TEST``, the ``.kunitconfig`` has:
``.kunitconfig`` lives in the ``--build_dir`` used by kunit.py, which is
``.kunit`` by default.
-.. note ::
+Before running the tests, kunit_tool ensures that all config options
+set in ``.kunitconfig`` are set in the kernel ``.config``. It will warn
+you if you have not included dependencies for the options used.
+
+There are many ways to customize the configurations:
+
+a. Edit ``.kunit/.kunitconfig``. The file should contain the list of kconfig
+ options required to run the desired tests, including their dependencies.
You may want to remove CONFIG_KUNIT_ALL_TESTS from the ``.kunitconfig`` as
it will enable a number of additional tests that you may not want.
+ If you need to run on an architecture other than UML see :ref:`kunit-on-qemu`.
-2. You can then add any other Kconfig options, for example:
+b. Enable additional kconfig options on top of ``.kunit/.kunitconfig``.
+ For example, to include the kernel's linked-list test you can run::
-.. code-block:: none
+ ./tools/testing/kunit/kunit.py run \
+ --kconfig_add CONFIG_LIST_KUNIT_TEST=y
- CONFIG_LIST_KUNIT_TEST=y
+c. Provide the path of one or more .kunitconfig files from the tree.
+ For example, to run only ``FAT_FS`` and ``EXT4`` tests you can run::
-Before running the tests, kunit_tool ensures that all config options
-set in ``.kunitconfig`` are set in the kernel ``.config``. It will warn
-you if you have not included dependencies for the options used.
+ ./tools/testing/kunit/kunit.py run \
+ --kunitconfig ./fs/fat/.kunitconfig \
+ --kunitconfig ./fs/ext4/.kunitconfig
-.. note ::
- If you change the ``.kunitconfig``, kunit.py will trigger a rebuild of the
+d. If you change the ``.kunitconfig``, kunit.py will trigger a rebuild of the
``.config`` file. But you can edit the ``.config`` file directly or with
tools like ``make menuconfig O=.kunit``. As long as its a superset of
``.kunitconfig``, kunit.py won't overwrite your changes.
-Running Tests (KUnit Wrapper)
------------------------------
-1. To make sure that everything is set up correctly, invoke the Python
- wrapper from your kernel repository:
-.. code-block:: bash
+.. note ::
- ./tools/testing/kunit/kunit.py run
+ To save a .kunitconfig after finding a satisfactory configuration::
-If everything worked correctly, you should see the following:
+ make savedefconfig O=.kunit
+ cp .kunit/defconfig .kunit/.kunitconfig
-.. code-block::
+Filtering tests by name
+~~~~~~~~~~~~~~~~~~~~~~~
+If you want to be more specific than Kconfig can provide, it is also possible
+to select which tests to execute at boot-time by passing a glob filter
+(read instructions regarding the pattern in the manpage :manpage:`glob(7)`).
+If there is a ``"."`` (period) in the filter, it will be interpreted as a
+separator between the name of the test suite and the test case,
+otherwise, it will be interpreted as the name of the test suite.
+For example, let's assume we are using the default config:
- Generating .config ...
- Building KUnit Kernel ...
- Starting KUnit Kernel ...
+a. inform the name of a test suite, like ``"kunit_executor_test"``,
+ to run every test case it contains::
-The tests will pass or fail.
+ ./tools/testing/kunit/kunit.py run "kunit_executor_test"
-.. note ::
- Because it is building a lot of sources for the first time, the
- ``Building KUnit kernel`` may take a while.
+b. inform the name of a test case prefixed by its test suite,
+ like ``"example.example_simple_test"``, to run specifically that test case::
+
+ ./tools/testing/kunit/kunit.py run "example.example_simple_test"
+
+c. use wildcard characters (``*?[``) to run any test case that matches the pattern,
+ like ``"*.*64*"`` to run test cases containing ``"64"`` in the name inside
+ any test suite::
+
+ ./tools/testing/kunit/kunit.py run "*.*64*"
Running Tests without the KUnit Wrapper
=======================================
@@ -217,7 +265,7 @@ Now we are ready to write the test cases.
obj-$(CONFIG_MISC_EXAMPLE_TEST) += example_test.o
-4. Add the following lines to ``.kunitconfig``:
+4. Add the following lines to ``.kunit/.kunitconfig``:
.. code-block:: none
@@ -254,7 +302,5 @@ Next Steps
examples.
* Documentation/dev-tools/kunit/api/index.rst - KUnit APIs
used for testing.
-* Documentation/dev-tools/kunit/kunit-tool.rst - kunit_tool helper
- script.
* Documentation/dev-tools/kunit/faq.rst - KUnit common questions and
answers.
diff --git a/Documentation/dev-tools/kunit/usage.rst b/Documentation/dev-tools/kunit/usage.rst
index d62a04255c2e..2737863ef365 100644
--- a/Documentation/dev-tools/kunit/usage.rst
+++ b/Documentation/dev-tools/kunit/usage.rst
@@ -165,6 +165,8 @@ built as a module).
For more information, see Documentation/dev-tools/kunit/api/test.rst.
+.. _kunit-on-non-uml:
+
Writing Tests For Other Architectures
-------------------------------------
@@ -505,7 +507,7 @@ By reusing the same ``cases`` array from above, we can write the test as a
const char *str;
const char *sha1;
};
- struct sha1_test_case cases[] = {
+ const struct sha1_test_case cases[] = {
{
.str = "hello world",
.sha1 = "2aae6c35c94fcfb415dbe95f408b9ce91ee846ed",
@@ -544,8 +546,6 @@ By reusing the same ``cases`` array from above, we can write the test as a
{}
};
-.. _kunit-on-non-uml:
-
Exiting Early on Failed Expectations
------------------------------------
diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index c9953f86b19d..bf2d8a8ced77 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -42,9 +42,7 @@ quiet_cmd_chk_bindings = CHKDT $@
quiet_cmd_mk_schema = SCHEMA $@
cmd_mk_schema = f=$$(mktemp) ; \
- $(if $(DT_MK_SCHEMA_FLAGS), \
- printf '%s\n' $(real-prereqs), \
- $(find_all_cmd)) > $$f ; \
+ $(find_all_cmd) > $$f ; \
$(DT_MK_SCHEMA) -j $(DT_MK_SCHEMA_FLAGS) @$$f > $@ ; \
rm -f $$f
@@ -77,3 +75,6 @@ always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dtb,
# build artifacts here before they are processed by scripts/Makefile.clean
clean-files = $(shell find $(obj) \( -name '*.example.dts' -o \
-name '*.example.dtb' \) -delete 2>/dev/null)
+
+dt_compatible_check: $(obj)/processed-schema.json
+ $(Q)$(srctree)/scripts/dtc/dt-extract-compatibles $(srctree) | xargs dt-check-compatible -v -s $<
diff --git a/Documentation/devicetree/bindings/arm/actions.yaml b/Documentation/devicetree/bindings/arm/actions.yaml
index 02dc72c97645..e012f612f039 100644
--- a/Documentation/devicetree/bindings/arm/actions.yaml
+++ b/Documentation/devicetree/bindings/arm/actions.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/actions.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Actions Semi platforms device tree bindings
+title: Actions Semi platforms
maintainers:
- Andreas Färber <afaerber@suse.de>
diff --git a/Documentation/devicetree/bindings/arm/airoha.yaml b/Documentation/devicetree/bindings/arm/airoha.yaml
index fc19b1a6f37b..3292c669ee11 100644
--- a/Documentation/devicetree/bindings/arm/airoha.yaml
+++ b/Documentation/devicetree/bindings/arm/airoha.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/airoha.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Airoha SoC based Platforms Device Tree Bindings
+title: Airoha SoC based Platforms
maintainers:
- Felix Fietkau <nbd@nbd.name>
diff --git a/Documentation/devicetree/bindings/arm/altera.yaml b/Documentation/devicetree/bindings/arm/altera.yaml
index 5e2017c0a051..3eee03aa935c 100644
--- a/Documentation/devicetree/bindings/arm/altera.yaml
+++ b/Documentation/devicetree/bindings/arm/altera.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/altera.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Altera's SoCFPGA platform device tree bindings
+title: Altera's SoCFPGA platform
maintainers:
- Dinh Nguyen <dinguyen@kernel.org>
@@ -25,7 +25,14 @@ properties:
items:
- enum:
- altr,socfpga-arria10-socdk
- - enclustra,mercury-aa1
+ - const: altr,socfpga-arria10
+ - const: altr,socfpga
+
+ - description: Mercury+ AA1 boards
+ items:
+ - enum:
+ - google,chameleon-v3
+ - const: enclustra,mercury-aa1
- const: altr,socfpga-arria10
- const: altr,socfpga
@@ -47,6 +54,7 @@ properties:
items:
- enum:
- altr,socfpga-stratix10-socdk
+ - altr,socfpga-stratix10-swvp
- const: altr,socfpga-stratix10
- description: SoCFPGA VT
diff --git a/Documentation/devicetree/bindings/arm/amazon,al.yaml b/Documentation/devicetree/bindings/arm/amazon,al.yaml
index 0f03135d91b6..37dbb4768e5b 100644
--- a/Documentation/devicetree/bindings/arm/amazon,al.yaml
+++ b/Documentation/devicetree/bindings/arm/amazon,al.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/amazon,al.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Amazon's Annapurna Labs Alpine Platform Device Tree Bindings
+title: Amazon's Annapurna Labs Alpine Platform
maintainers:
- Hanna Hawa <hhhawa@amazon.com>
diff --git a/Documentation/devicetree/bindings/arm/amlogic.yaml b/Documentation/devicetree/bindings/arm/amlogic.yaml
index 61a6cabb375b..9fda2436c618 100644
--- a/Documentation/devicetree/bindings/arm/amlogic.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/amlogic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Amlogic MesonX device tree bindings
+title: Amlogic MesonX
maintainers:
- Kevin Hilman <khilman@baylibre.com>
@@ -120,6 +120,7 @@ properties:
- enum:
- amlogic,q200
- amlogic,q201
+ - azw,gt1-ultimate
- khadas,vim2
- kingnovel,r-box-pro
- libretech,aml-s912-pc
@@ -136,6 +137,7 @@ properties:
- enum:
- amlogic,s400
- jethome,jethub-j100
+ - jethome,jethub-j110
- const: amlogic,a113d
- const: amlogic,meson-axg
diff --git a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
index 6cc74523ebfd..1748f1605cc7 100644
--- a/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
+++ b/Documentation/devicetree/bindings/arm/amlogic/amlogic,meson-gx-ao-secure.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson Firmware registers Interface
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The Meson SoCs have a register bank with status and data shared with the
diff --git a/Documentation/devicetree/bindings/arm/apple.yaml b/Documentation/devicetree/bindings/arm/apple.yaml
index 8d93e8a6cc18..7262f3c09867 100644
--- a/Documentation/devicetree/bindings/arm/apple.yaml
+++ b/Documentation/devicetree/bindings/arm/apple.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/apple.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Apple ARM Machine Device Tree Bindings
+title: Apple ARM Machine
maintainers:
- Hector Martin <marcan@marcan.st>
diff --git a/Documentation/devicetree/bindings/arm/arm,cci-400.yaml b/Documentation/devicetree/bindings/arm/arm,cci-400.yaml
index 1706134b75a3..d28303d909e1 100644
--- a/Documentation/devicetree/bindings/arm/arm,cci-400.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,cci-400.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/arm,cci-400.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ARM CCI Cache Coherent Interconnect Device Tree Binding
+title: ARM CCI Cache Coherent Interconnect
maintainers:
- Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml
new file mode 100644
index 000000000000..2bae06eed693
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-catu.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-catu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Coresight Address Translation Unit (CATU)
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The CoreSight Address Translation Unit (CATU) translates addresses between an
+ AXI master and system memory. The CATU is normally used along with the TMC to
+ implement scattering of virtual trace buffers in physical memory. The CATU
+ translates contiguous Virtual Addresses (VAs) from an AXI master into
+ non-contiguous Physical Addresses (PAs) that are intended for system memory.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-catu
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-catu
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ interrupts:
+ maxItems: 1
+ description: Address translation error interrupt
+
+ power-domains:
+ maxItems: 1
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: AXI Slave connected to another Coresight component
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ catu@207e0000 {
+ compatible = "arm,coresight-catu", "arm,primecell";
+ reg = <0x207e0000 0x1000>;
+
+ clocks = <&oscclk6a>;
+ clock-names = "apb_pclk";
+
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ in-ports {
+ port {
+ catu_in_port: endpoint {
+ remote-endpoint = <&etr_out_port>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-cpu-debug.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cpu-debug.yaml
new file mode 100644
index 000000000000..0a6bc03ebe00
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-cpu-debug.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-cpu-debug.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CoreSight CPU Debug Component
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight CPU debug component are compliant with the ARMv8 architecture
+ reference manual (ARM DDI 0487A.k) Chapter 'Part H: External debug'. The
+ external debug module is mainly used for two modes: self-hosted debug and
+ external debug, and it can be accessed from mmio region from Coresight and
+ eventually the debug module connects with CPU for debugging. And the debug
+ module provides sample-based profiling extension, which can be used to sample
+ CPU program counter, secure state and exception level, etc; usually every CPU
+ has one dedicated debug module to be connected.
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-cpu-debug
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-cpu-debug
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ maxItems: 1
+
+ cpu:
+ description:
+ A phandle to the cpu this debug component is bound to.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ power-domains:
+ maxItems: 1
+ description:
+ A phandle to the debug power domain if the debug logic has its own
+ dedicated power domain. CPU idle states may also need to be separately
+ constrained to keep CPU cores powered.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - cpu
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ debug@f6590000 {
+ compatible = "arm,coresight-cpu-debug", "arm,primecell";
+ reg = <0xf6590000 0x1000>;
+ clocks = <&sys_ctrl 1>;
+ clock-names = "apb_pclk";
+ cpu = <&cpu0>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/coresight-cti.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
index 21e3515491f4..0c5b875cb654 100644
--- a/Documentation/devicetree/bindings/arm/coresight-cti.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-cti.yaml
@@ -2,7 +2,7 @@
# Copyright 2019 Linaro Ltd.
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/coresight-cti.yaml#
+$id: http://devicetree.org/schemas/arm/arm,coresight-cti.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ARM Coresight Cross Trigger Interface (CTI) device.
@@ -12,8 +12,7 @@ description: |
to one or more CoreSight components and/or a CPU, with CTIs interconnected in
a star topology via the Cross Trigger Matrix (CTM), which is not programmable.
The ECT components are not part of the trace generation data path and are thus
- not part of the CoreSight graph described in the general CoreSight bindings
- file coresight.txt.
+ not part of the CoreSight graph.
The CTI component properties define the connections between the individual
CTI and the components it is directly connected to, consisting of input and
@@ -99,6 +98,9 @@ properties:
base cti node if compatible string arm,coresight-cti-v8-arch is used,
or may appear in a trig-conns child node when appropriate.
+ power-domains:
+ maxItems: 1
+
arm,cti-ctm-id:
$ref: /schemas/types.yaml#/definitions/uint32
description:
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
new file mode 100644
index 000000000000..44a1041cb0fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-funnel.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-dynamic-funnel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Programmable Trace Bus Funnel
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Coresight funnel merges 2-8 trace sources into a single trace
+ stream with programmable enable and priority of input ports.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-dynamic-funnel
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-dynamic-funnel
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ power-domains:
+ maxItems: 1
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port(@[0-7])?$':
+ description: Input connections from CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Output connection to CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+ - out-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ funnel@20040000 {
+ compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
+ reg = <0x20040000 0x1000>;
+
+ clocks = <&oscclk6a>;
+ clock-names = "apb_pclk";
+ out-ports {
+ port {
+ funnel_out_port0: endpoint {
+ remote-endpoint = <&replicator_in_port0>;
+ };
+ };
+ };
+
+ in-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ funnel_in_port0: endpoint {
+ remote-endpoint = <&ptm0_out_port>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ funnel_in_port1: endpoint {
+ remote-endpoint = <&ptm1_out_port>;
+ };
+ };
+
+ port@2 {
+ reg = <2>;
+ funnel_in_port2: endpoint {
+ remote-endpoint = <&etm0_out_port>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
new file mode 100644
index 000000000000..03792e9bd97a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-dynamic-replicator.yaml
@@ -0,0 +1,129 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-dynamic-replicator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Coresight Programmable Trace Bus Replicator
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Coresight replicator splits a single trace stream into two trace streams
+ for systems that have more than one trace sink component.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-dynamic-replicator
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-dynamic-replicator
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ power-domains:
+ maxItems: 1
+
+ qcom,replicator-loses-context:
+ type: boolean
+ description:
+ Indicates that the replicator will lose register context when AMBA clock
+ is removed which is observed in some replicator designs.
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Input connection from CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port(@[01])?$':
+ description: Output connections to CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+ - out-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ replicator@20120000 {
+ compatible = "arm,coresight-dynamic-replicator", "arm,primecell";
+ reg = <0x20120000 0x1000>;
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+
+ out-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* replicator output ports */
+ port@0 {
+ reg = <0>;
+ replicator_out_port0: endpoint {
+ remote-endpoint = <&tpiu_in_port>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ replicator_out_port1: endpoint {
+ remote-endpoint = <&etr_in_port>;
+ };
+ };
+ };
+ in-ports {
+ port {
+ replicator_in_port0: endpoint {
+ remote-endpoint = <&csys2_funnel_out_port>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
new file mode 100644
index 000000000000..90679788e0bf
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etb10.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-etb10.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Embedded Trace Buffer
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The CoreSight Embedded Trace Buffer stores traces in a dedicated SRAM that is
+ used as a circular buffer.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-etb10
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-etb10
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ power-domains:
+ maxItems: 1
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Input connection from CoreSight Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ etb@20010000 {
+ compatible = "arm,coresight-etb10", "arm,primecell";
+ reg = <0x20010000 0x1000>;
+
+ clocks = <&oscclk6a>;
+ clock-names = "apb_pclk";
+ in-ports {
+ port {
+ etb_in_port: endpoint {
+ remote-endpoint = <&replicator_out_port0>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
new file mode 100644
index 000000000000..01200f67504a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-etm.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-etm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Embedded Trace MacroCell
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Embedded Trace Macrocell (ETM) is a real-time trace module providing
+ instruction and data tracing of a processor.
+
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - arm,coresight-etm3x
+ - arm,coresight-etm4x
+ - arm,coresight-etm4x-sysreg
+ required:
+ - compatible
+
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-etm4x-sysreg
+ then:
+ $ref: /schemas/arm/primecell.yaml#
+ required:
+ - reg
+
+properties:
+ compatible:
+ oneOf:
+ - description:
+ Embedded Trace Macrocell with memory mapped access.
+ items:
+ - enum:
+ - arm,coresight-etm3x
+ - arm,coresight-etm4x
+ - const: arm,primecell
+ - description:
+ Embedded Trace Macrocell (version 4.x), with system register access only
+ const: arm,coresight-etm4x-sysreg
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ power-domains:
+ maxItems: 1
+
+ arm,coresight-loses-context-with-cpu:
+ type: boolean
+ description:
+ Indicates that the hardware will lose register context on CPU power down
+ (e.g. CPUIdle). An example of where this may be needed are systems which
+ contain a coresight component and CPU in the same power domain. When the
+ CPU powers down the coresight component also powers down and loses its
+ context.
+
+ arm,cp14:
+ type: boolean
+ description:
+ Must be present if the system accesses ETM/PTM management registers via
+ co-processor 14.
+
+ qcom,skip-power-up:
+ type: boolean
+ description:
+ Indicates that an implementation can skip powering up the trace unit.
+ TRCPDCR.PU does not have to be set on Qualcomm Technologies Inc. systems
+ since ETMs are in the same power domain as their CPU cores. This property
+ is required to identify such systems with hardware errata where the CPU
+ watchdog counter is stopped when TRCPDCR.PU is set.
+
+ cpu:
+ description:
+ phandle to the cpu this ETM is bound to.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Output connection from the ETM to CoreSight Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - cpu
+ - out-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ptm@2201c000 {
+ compatible = "arm,coresight-etm3x", "arm,primecell";
+ reg = <0x2201c000 0x1000>;
+
+ cpu = <&cpu0>;
+ clocks = <&oscclk6a>;
+ clock-names = "apb_pclk";
+ out-ports {
+ port {
+ ptm0_out_port: endpoint {
+ remote-endpoint = <&funnel_in_port0>;
+ };
+ };
+ };
+ };
+
+ ptm@2201d000 {
+ compatible = "arm,coresight-etm3x", "arm,primecell";
+ reg = <0x2201d000 0x1000>;
+
+ cpu = <&cpu1>;
+ clocks = <&oscclk6a>;
+ clock-names = "apb_pclk";
+ out-ports {
+ port {
+ ptm1_out_port: endpoint {
+ remote-endpoint = <&funnel_in_port1>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
new file mode 100644
index 000000000000..cc8c3baa79b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-funnel.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-static-funnel.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Static Trace Bus Funnel
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Coresight static funnel merges 2-8 trace sources into a single trace
+ stream.
+
+properties:
+ compatible:
+ const: arm,coresight-static-funnel
+
+ power-domains:
+ maxItems: 1
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port@[0-7]$':
+ description: Input connections from CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Output connection to CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - in-ports
+ - out-ports
+
+additionalProperties: false
+
+examples:
+ - |
+ funnel {
+ /*
+ * non-configurable replicators don't show up on the
+ * AMBA bus. As such no need to add "arm,primecell".
+ */
+ compatible = "arm,coresight-static-funnel";
+
+ out-ports {
+ port {
+ combo_funnel_out: endpoint {
+ remote-endpoint = <&top_funnel_in>;
+ };
+ };
+ };
+
+ in-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ combo_funnel_in0: endpoint {
+ remote-endpoint = <&cluster0_etf_out>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ combo_funnel_in1: endpoint {
+ remote-endpoint = <&cluster1_etf_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
new file mode 100644
index 000000000000..1892a091ac35
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-static-replicator.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-static-replicator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Static Trace Bus Replicator
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The Coresight replicator splits a single trace stream into two trace streams
+ for systems that have more than one trace sink component.
+
+properties:
+ compatible:
+ const: arm,coresight-static-replicator
+
+ power-domains:
+ maxItems: 1
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Input connection from CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ patternProperties:
+ '^port@[01]$':
+ description: Output connections to CoreSight Trace bus
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - in-ports
+ - out-ports
+
+additionalProperties: false
+
+examples:
+ - |
+ replicator {
+ /*
+ * non-configurable replicators don't show up on the
+ * AMBA bus. As such no need to add "arm,primecell".
+ */
+ compatible = "arm,coresight-static-replicator";
+
+ out-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* replicator output ports */
+ port@0 {
+ reg = <0>;
+ replicator_out_port0: endpoint {
+ remote-endpoint = <&etb_in_port>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ replicator_out_port1: endpoint {
+ remote-endpoint = <&tpiu_in_port>;
+ };
+ };
+ };
+
+ in-ports {
+ port {
+ replicator_in_port0: endpoint {
+ remote-endpoint = <&funnel_out_port0>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
new file mode 100644
index 000000000000..378380c3f5aa
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-stm.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-stm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight System Trace MacroCell
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The STM is a trace source that is integrated into a CoreSight system, designed
+ primarily for high-bandwidth trace of instrumentation embedded into software.
+ This instrumentation is made up of memory-mapped writes to the STM Advanced
+ eXtensible Interface (AXI) slave, which carry information about the behavior
+ of the software.
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-stm
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-stm
+ - const: arm,primecell
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: stm-base
+ - const: stm-stimulus-base
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ power-domains:
+ maxItems: 1
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Output connection to the CoreSight Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - out-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ stm@20100000 {
+ compatible = "arm,coresight-stm", "arm,primecell";
+ reg = <0x20100000 0x1000>,
+ <0x28000000 0x180000>;
+ reg-names = "stm-base", "stm-stimulus-base";
+
+ clocks = <&soc_smc50mhz>;
+ clock-names = "apb_pclk";
+ out-ports {
+ port {
+ stm_out_port: endpoint {
+ remote-endpoint = <&main_funnel_in_port2>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
new file mode 100644
index 000000000000..cb8dceaca70e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tmc.yaml
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-tmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Trace Memory Controller
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ Trace Memory Controller is used for Embedded Trace Buffer(ETB), Embedded Trace
+ FIFO(ETF) and Embedded Trace Router(ETR) configurations. The configuration
+ mode (ETB, ETF, ETR) is discovered at boot time when the device is probed.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-tmc
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-tmc
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ iommus:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ arm,buffer-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ deprecated: true
+ description:
+ Size of contiguous buffer space for TMC ETR (embedded trace router). The
+ buffer size can be configured dynamically via buffer_size property in
+ sysfs instead.
+
+ arm,scatter-gather:
+ type: boolean
+ description:
+ Indicates that the TMC-ETR can safely use the SG mode on this system.
+
+ arm,max-burst-size:
+ description:
+ The maximum burst size initiated by TMC on the AXI master interface. The
+ burst size can be in the range [0..15], the setting supports one data
+ transfer per burst up to a maximum of 16 data transfers per burst.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 15
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Input connection from the CoreSight Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+ out-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: AXI or ATB Master output connection. Used for ETR
+ and ETF configurations.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ etr@20070000 {
+ compatible = "arm,coresight-tmc", "arm,primecell";
+ reg = <0x20070000 0x1000>;
+
+ clocks = <&oscclk6a>;
+ clock-names = "apb_pclk";
+ in-ports {
+ port {
+ etr_in_port: endpoint {
+ remote-endpoint = <&replicator2_out_port0>;
+ };
+ };
+ };
+
+ out-ports {
+ port {
+ etr_out_port: endpoint {
+ remote-endpoint = <&catu_in_port>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml b/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
new file mode 100644
index 000000000000..61a0cdc27745
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,coresight-tpiu.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,coresight-tpiu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm CoreSight Trace Port Interface Unit
+
+maintainers:
+ - Mathieu Poirier <mathieu.poirier@linaro.org>
+ - Mike Leach <mike.leach@linaro.org>
+ - Leo Yan <leo.yan@linaro.org>
+ - Suzuki K Poulose <suzuki.poulose@arm.com>
+
+description: |
+ CoreSight components are compliant with the ARM CoreSight architecture
+ specification and can be connected in various topologies to suit a particular
+ SoCs tracing needs. These trace components can generally be classified as
+ sinks, links and sources. Trace data produced by one or more sources flows
+ through the intermediate links connecting the source to the currently selected
+ sink.
+
+ The CoreSight Trace Port Interface Unit captures trace data from the trace bus
+ and outputs it to an external trace port.
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,coresight-tpiu
+ required:
+ - compatible
+
+allOf:
+ - $ref: /schemas/arm/primecell.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: arm,coresight-tpiu
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: apb_pclk
+ - const: atclk
+
+ power-domains:
+ maxItems: 1
+
+ in-ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ additionalProperties: false
+
+ properties:
+ port:
+ description: Input connection from the CoreSight Trace bus.
+ $ref: /schemas/graph.yaml#/properties/port
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - in-ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ tpiu@e3c05000 {
+ compatible = "arm,coresight-tpiu", "arm,primecell";
+ reg = <0xe3c05000 0x1000>;
+
+ clocks = <&clk_375m>;
+ clock-names = "apb_pclk";
+ in-ports {
+ port {
+ tpiu_in_port: endpoint {
+ remote-endpoint = <&funnel4_out_port0>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml b/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
index a77f88223801..693f3fe7be60 100644
--- a/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,corstone1000.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/arm,corstone1000.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ARM Corstone1000 Device Tree Bindings
+title: ARM Corstone1000
maintainers:
- Vishnu Banavath <vishnu.banavath@arm.com>
diff --git a/Documentation/devicetree/bindings/arm/ete.yaml b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
index 7f9b2d1e1147..108460627d9a 100644
--- a/Documentation/devicetree/bindings/arm/ete.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,embedded-trace-extension.yaml
@@ -2,7 +2,7 @@
# Copyright 2021, Arm Ltd
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/ete.yaml#"
+$id: "http://devicetree.org/schemas/arm/arm,embedded-trace-extension.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: ARM Embedded Trace Extensions
@@ -20,7 +20,6 @@ description: |
Arm Trace Buffer Extension (TRBE)). Since the ETE can be connected to
legacy CoreSight components, a node must be listed per instance, along
with any optional connection graph as per the coresight bindings.
- See bindings/arm/coresight.txt.
properties:
$nodename:
@@ -34,6 +33,9 @@ properties:
Handle to the cpu this ETE is bound to.
$ref: /schemas/types.yaml#/definitions/phandle
+ power-domains:
+ maxItems: 1
+
out-ports:
description: |
Output connections from the ETE to legacy CoreSight trace bus.
diff --git a/Documentation/devicetree/bindings/arm/arm,integrator.yaml b/Documentation/devicetree/bindings/arm/arm,integrator.yaml
index 528eee64290a..98ff5698ae1f 100644
--- a/Documentation/devicetree/bindings/arm/arm,integrator.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,integrator.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/arm,integrator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ARM Integrator Boards Device Tree Bindings
+title: ARM Integrator Boards
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/arm,realview.yaml b/Documentation/devicetree/bindings/arm/arm,realview.yaml
index 4f9b21f49e84..8d3ed2e4ed31 100644
--- a/Documentation/devicetree/bindings/arm/arm,realview.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,realview.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/arm,realview.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ARM RealView Boards Device Tree Bindings
+title: ARM RealView Boards
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/trbe.yaml b/Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml
index 4402d7bfd1fc..b1322658063a 100644
--- a/Documentation/devicetree/bindings/arm/trbe.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,trace-buffer-extension.yaml
@@ -2,7 +2,7 @@
# Copyright 2021, Arm Ltd
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/arm/trbe.yaml#"
+$id: "http://devicetree.org/schemas/arm/arm,trace-buffer-extension.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: ARM Trace Buffer Extensions
diff --git a/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml b/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml
new file mode 100644
index 000000000000..491eef1e1b10
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/arm,versatile-sysreg.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,versatile-sysreg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm Versatile system registers
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description:
+ This is a system control registers block, providing multiple low level
+ platform functions like board detection and identification, software
+ interrupt generation, MMC and NOR Flash control, etc.
+
+properties:
+ compatible:
+ items:
+ - const: arm,versatile-sysreg
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ panel:
+ type: object
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+...
diff --git a/Documentation/devicetree/bindings/arm/arm,versatile.yaml b/Documentation/devicetree/bindings/arm/arm,versatile.yaml
index 34b437c72751..13e52ba92060 100644
--- a/Documentation/devicetree/bindings/arm/arm,versatile.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,versatile.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/arm,versatile.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ARM Versatile Boards Device Tree Bindings
+title: ARM Versatile Boards
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml b/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
index a4b4452afc1d..eec190a96225 100644
--- a/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
+++ b/Documentation/devicetree/bindings/arm/arm,vexpress-juno.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/arm,vexpress-juno.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ARM Versatile Express and Juno Boards Device Tree Bindings
+title: ARM Versatile Express and Juno Boards
maintainers:
- Sudeep Holla <sudeep.holla@arm.com>
diff --git a/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
new file mode 100644
index 000000000000..217a1d674863
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/aspeed/aspeed.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/aspeed/aspeed.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed SoC based boards
+
+maintainers:
+ - Joel Stanley <joel@jms.id.au>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: AST2400 based boards
+ items:
+ - enum:
+ - facebook,galaxy100-bmc
+ - facebook,wedge100-bmc
+ - facebook,wedge40-bmc
+ - microsoft,olympus-bmc
+ - quanta,q71l-bmc
+ - tyan,palmetto-bmc
+ - yadro,vesnin-bmc
+ - const: aspeed,ast2400
+
+ - description: AST2500 based boards
+ items:
+ - enum:
+ - amd,daytonax-bmc
+ - amd,ethanolx-bmc
+ - ampere,mtjade-bmc
+ - aspeed,ast2500-evb
+ - asrock,e3c246d4i-bmc
+ - asrock,romed8hm3-bmc
+ - bytedance,g220a-bmc
+ - facebook,cmm-bmc
+ - facebook,minipack-bmc
+ - facebook,tiogapass-bmc
+ - facebook,yamp-bmc
+ - facebook,yosemitev2-bmc
+ - facebook,wedge400-bmc
+ - hxt,stardragon4800-rep2-bmc
+ - ibm,mihawk-bmc
+ - ibm,mowgli-bmc
+ - ibm,romulus-bmc
+ - ibm,swift-bmc
+ - ibm,witherspoon-bmc
+ - ingrasys,zaius-bmc
+ - inspur,fp5280g2-bmc
+ - inspur,nf5280m6-bmc
+ - inspur,on5263m5-bmc
+ - intel,s2600wf-bmc
+ - inventec,lanyang-bmc
+ - lenovo,hr630-bmc
+ - lenovo,hr855xg2-bmc
+ - portwell,neptune-bmc
+ - qcom,centriq2400-rep-bmc
+ - supermicro,x11spi-bmc
+ - tyan,s7106-bmc
+ - tyan,s8036-bmc
+ - yadro,nicole-bmc
+ - yadro,vegman-n110-bmc
+ - yadro,vegman-rx20-bmc
+ - yadro,vegman-sx20-bmc
+ - const: aspeed,ast2500
+
+ - description: AST2600 based boards
+ items:
+ - enum:
+ - ampere,mtmitchell-bmc
+ - aspeed,ast2600-evb
+ - aspeed,ast2600-evb-a1
+ - facebook,bletchley-bmc
+ - facebook,cloudripper-bmc
+ - facebook,elbert-bmc
+ - facebook,fuji-bmc
+ - ibm,everest-bmc
+ - ibm,rainier-bmc
+ - ibm,tacoma-bmc
+ - inventec,transformer-bmc
+ - jabil,rbp-bmc
+ - nuvia,dc-scm-bmc
+ - quanta,s6q-bmc
+ - const: aspeed,ast2600
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.yaml b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
index 4e495e03264b..2224b18801a1 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.yaml
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/atmel-at91.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Atmel AT91 device tree bindings.
+title: Atmel AT91.
maintainers:
- Alexandre Belloni <alexandre.belloni@bootlin.com>
@@ -127,6 +127,13 @@ properties:
- const: atmel,sama5d3
- const: atmel,sama5
+ - description: Microchip SAMA5D3 Ethernet Development System Board
+ items:
+ - const: microchip,sama5d3-eds
+ - const: atmel,sama5d36
+ - const: atmel,sama5d3
+ - const: atmel,sama5
+
- description: CalAmp LMU5000 board
items:
- const: calamp,lmu5000
@@ -163,9 +170,11 @@ properties:
- const: microchip,sama7g5
- const: microchip,sama7
- - description: Microchip LAN9662 PCB8291 Evaluation Board.
+ - description: Microchip LAN9662 Evaluation Boards.
items:
- - const: microchip,lan9662-pcb8291
+ - enum:
+ - microchip,lan9662-pcb8291
+ - microchip,lan9662-pcb8309
- const: microchip,lan9662
- const: microchip,lan966
diff --git a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
index 16eef600d599..ab1b352344ae 100644
--- a/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-sysregs.txt
@@ -25,21 +25,6 @@ System Timer (ST) required properties:
Its subnodes can be:
- watchdog: compatible should be "atmel,at91rm9200-wdt"
-RSTC Reset Controller required properties:
-- compatible: Should be "atmel,<chip>-rstc".
- <chip> can be "at91sam9260", "at91sam9g45", "sama5d3" or "samx7"
- it also can be "microchip,sam9x60-rstc"
-- reg: Should contain registers location and length
-- clocks: phandle to input clock.
-
-Example:
-
- rstc@fffffd00 {
- compatible = "atmel,at91sam9260-rstc";
- reg = <0xfffffd00 0x10>;
- clocks = <&clk32k>;
- };
-
RAMC SDRAM/DDR Controller required properties:
- compatible: Should be "atmel,at91rm9200-sdramc", "syscon"
"atmel,at91sam9260-sdramc",
diff --git a/Documentation/devicetree/bindings/arm/axxia.yaml b/Documentation/devicetree/bindings/arm/axxia.yaml
index e0d2bb71cf50..d60907e43efc 100644
--- a/Documentation/devicetree/bindings/arm/axxia.yaml
+++ b/Documentation/devicetree/bindings/arm/axxia.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/axxia.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Axxia AXM55xx device tree bindings
+title: Axxia AXM55xx
maintainers:
- Anders Berg <anders.berg@lsi.com>
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
index 8b7e87fb6c34..958df32b4899 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.yaml
@@ -87,6 +87,13 @@ properties:
- const: brcm,bcm53012
- const: brcm,bcm4708
+ - description: BCM53015 based boards
+ items:
+ - enum:
+ - meraki,mr26
+ - const: brcm,bcm53015
+ - const: brcm,bcm4708
+
- description: BCM53016 based boards
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml
deleted file mode 100644
index 9b745531ff04..000000000000
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml
+++ /dev/null
@@ -1,42 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/arm/bcm/brcm,bcm4908.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Broadcom BCM4908 device tree bindings
-
-description:
- Broadcom BCM4906 / BCM4908 / BCM49408 Wi-Fi/network SoCs with Brahma CPUs.
-
-maintainers:
- - Rafał Miłecki <rafal@milecki.pl>
-
-properties:
- $nodename:
- const: '/'
- compatible:
- oneOf:
- - description: BCM4906 based boards
- items:
- - enum:
- - netgear,r8000p
- - tplink,archer-c2300-v1
- - const: brcm,bcm4906
- - const: brcm,bcm4908
-
- - description: BCM4908 based boards
- items:
- - enum:
- - asus,gt-ac5300
- - netgear,raxe500
- - const: brcm,bcm4908
-
- - description: BCM49408 based boards
- items:
- - const: brcm,bcm49408
- - const: brcm,bcm4908
-
-additionalProperties: true
-
-...
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
index 5fb455840417..84866e29cab0 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
@@ -15,6 +15,7 @@ maintainers:
- William Zhang <william.zhang@broadcom.com>
- Anand Gore <anand.gore@broadcom.com>
- Kursad Oney <kursad.oney@broadcom.com>
+ - Rafał Miłecki <rafal@milecki.pl>
properties:
$nodename:
@@ -28,6 +29,123 @@ properties:
- const: brcm,bcm47622
- const: brcm,bcmbca
+ - description: BCM4906 based boards
+ items:
+ - enum:
+ - netgear,r8000p
+ - tplink,archer-c2300-v1
+ - const: brcm,bcm4906
+ - const: brcm,bcm4908
+ - const: brcm,bcmbca
+
+ - description: BCM4908 based boards
+ items:
+ - enum:
+ - asus,gt-ac5300
+ - brcm,bcm94908
+ - netgear,raxe500
+ - const: brcm,bcm4908
+ - const: brcm,bcmbca
+
+ - description: BCM49408 based boards
+ items:
+ - const: brcm,bcm49408
+ - const: brcm,bcm4908
+ - const: brcm,bcmbca
+
+ - description: BCM4912 based boards
+ items:
+ - enum:
+ - asus,gt-ax6000
+ - brcm,bcm94912
+ - const: brcm,bcm4912
+ - const: brcm,bcmbca
+
+ - description: BCM63138 based boards
+ items:
+ - enum:
+ - brcm,bcm963138
+ - brcm,BCM963138DVT
+ - const: brcm,bcm63138
+ - const: brcm,bcmbca
+
+ - description: BCM63146 based boards
+ items:
+ - enum:
+ - brcm,bcm963146
+ - const: brcm,bcm63146
+ - const: brcm,bcmbca
+
+ - description: BCM63148 based boards
+ items:
+ - enum:
+ - brcm,bcm963148
+ - const: brcm,bcm63148
+ - const: brcm,bcmbca
+
+ - description: BCM63158 based boards
+ items:
+ - enum:
+ - brcm,bcm963158
+ - const: brcm,bcm63158
+ - const: brcm,bcmbca
+
+ - description: BCM63178 based boards
+ items:
+ - enum:
+ - brcm,bcm963178
+ - const: brcm,bcm63178
+ - const: brcm,bcmbca
+
+ - description: BCM6756 based boards
+ items:
+ - enum:
+ - brcm,bcm96756
+ - const: brcm,bcm6756
+ - const: brcm,bcmbca
+
+ - description: BCM6813 based boards
+ items:
+ - enum:
+ - brcm,bcm96813
+ - const: brcm,bcm6813
+ - const: brcm,bcmbca
+
+ - description: BCM6846 based boards
+ items:
+ - enum:
+ - brcm,bcm96846
+ - const: brcm,bcm6846
+ - const: brcm,bcmbca
+
+ - description: BCM6855 based boards
+ items:
+ - enum:
+ - brcm,bcm96855
+ - const: brcm,bcm6855
+ - const: brcm,bcmbca
+
+ - description: BCM6856 based boards
+ items:
+ - enum:
+ - brcm,bcm96856
+ - const: brcm,bcm6856
+ - const: brcm,bcmbca
+
+ - description: BCM6858 based boards
+ items:
+ - enum:
+ - brcm,bcm96858
+ - const: brcm,bcm6858
+ - const: brcm,bcmbca
+
+ - description: BCM6878 based boards
+ items:
+ - enum:
+ - brcm,bcm96878
+ - const: brcm,bcm6878
+ - const: brcm,bcmbca
+
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt
index 104cc9b41df4..071421dbc4d0 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt
@@ -187,15 +187,8 @@ Required properties:
Sequencer DRAM parameters and control registers. Used for Self-Refresh
Power-Down (SRPD), among other things.
-Required properties:
-- compatible : should contain one of these
- "brcm,brcmstb-memc-ddr-rev-b.2.1"
- "brcm,brcmstb-memc-ddr-rev-b.2.2"
- "brcm,brcmstb-memc-ddr-rev-b.2.3"
- "brcm,brcmstb-memc-ddr-rev-b.3.0"
- "brcm,brcmstb-memc-ddr-rev-b.3.1"
- "brcm,brcmstb-memc-ddr"
-- reg : the MEMC DDR register range
+See Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml for a
+full list of supported compatible strings and properties.
Example:
diff --git a/Documentation/devicetree/bindings/arm/bitmain.yaml b/Documentation/devicetree/bindings/arm/bitmain.yaml
index 90ba02be48ce..55a5a570b5bc 100644
--- a/Documentation/devicetree/bindings/arm/bitmain.yaml
+++ b/Documentation/devicetree/bindings/arm/bitmain.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/bitmain.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Bitmain platform device tree bindings
+title: Bitmain platform
maintainers:
- Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/calxeda.yaml b/Documentation/devicetree/bindings/arm/calxeda.yaml
index 46f78addebb0..3e9f5e1d862e 100644
--- a/Documentation/devicetree/bindings/arm/calxeda.yaml
+++ b/Documentation/devicetree/bindings/arm/calxeda.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/calxeda.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Calxeda Platforms Device Tree Bindings
+title: Calxeda Platforms
maintainers:
- Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt b/Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
deleted file mode 100644
index f1de3247c1b7..000000000000
--- a/Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt
+++ /dev/null
@@ -1,49 +0,0 @@
-* CoreSight CPU Debug Component:
-
-CoreSight CPU debug component are compliant with the ARMv8 architecture
-reference manual (ARM DDI 0487A.k) Chapter 'Part H: External debug'. The
-external debug module is mainly used for two modes: self-hosted debug and
-external debug, and it can be accessed from mmio region from Coresight
-and eventually the debug module connects with CPU for debugging. And the
-debug module provides sample-based profiling extension, which can be used
-to sample CPU program counter, secure state and exception level, etc;
-usually every CPU has one dedicated debug module to be connected.
-
-Required properties:
-
-- compatible : should be "arm,coresight-cpu-debug"; supplemented with
- "arm,primecell" since this driver is using the AMBA bus
- interface.
-
-- reg : physical base address and length of the register set.
-
-- clocks : the clock associated to this component.
-
-- clock-names : the name of the clock referenced by the code. Since we are
- using the AMBA framework, the name of the clock providing
- the interconnect should be "apb_pclk" and the clock is
- mandatory. The interface between the debug logic and the
- processor core is clocked by the internal CPU clock, so it
- is enabled with CPU clock by default.
-
-- cpu : the CPU phandle the debug module is affined to. Do not assume it
- to default to CPU0 if omitted.
-
-Optional properties:
-
-- power-domains: a phandle to the debug power domain. We use "power-domains"
- binding to turn on the debug logic if it has own dedicated
- power domain and if necessary to use "cpuidle.off=1" or
- "nohlt" in the kernel command line or sysfs node to
- constrain idle states to ensure registers in the CPU power
- domain are accessible.
-
-Example:
-
- debug@f6590000 {
- compatible = "arm,coresight-cpu-debug","arm,primecell";
- reg = <0 0xf6590000 0 0x1000>;
- clocks = <&sys_ctrl HI6220_DAPB_CLK>;
- clock-names = "apb_pclk";
- cpu = <&cpu0>;
- };
diff --git a/Documentation/devicetree/bindings/arm/coresight.txt b/Documentation/devicetree/bindings/arm/coresight.txt
deleted file mode 100644
index c68d93a35b6c..000000000000
--- a/Documentation/devicetree/bindings/arm/coresight.txt
+++ /dev/null
@@ -1,402 +0,0 @@
-* CoreSight Components:
-
-CoreSight components are compliant with the ARM CoreSight architecture
-specification and can be connected in various topologies to suit a particular
-SoCs tracing needs. These trace components can generally be classified as
-sinks, links and sources. Trace data produced by one or more sources flows
-through the intermediate links connecting the source to the currently selected
-sink. Each CoreSight component device should use these properties to describe
-its hardware characteristcs.
-
-* Required properties for all components *except* non-configurable replicators
- and non-configurable funnels:
-
- * compatible: These have to be supplemented with "arm,primecell" as
- drivers are using the AMBA bus interface. Possible values include:
- - Embedded Trace Buffer (version 1.0):
- "arm,coresight-etb10", "arm,primecell";
-
- - Trace Port Interface Unit:
- "arm,coresight-tpiu", "arm,primecell";
-
- - Trace Memory Controller, used for Embedded Trace Buffer(ETB),
- Embedded Trace FIFO(ETF) and Embedded Trace Router(ETR)
- configuration. The configuration mode (ETB, ETF, ETR) is
- discovered at boot time when the device is probed.
- "arm,coresight-tmc", "arm,primecell";
-
- - Trace Programmable Funnel:
- "arm,coresight-dynamic-funnel", "arm,primecell";
- "arm,coresight-funnel", "arm,primecell"; (OBSOLETE. For
- backward compatibility and will be removed)
-
- - Embedded Trace Macrocell (version 3.x) and
- Program Flow Trace Macrocell:
- "arm,coresight-etm3x", "arm,primecell";
-
- - Embedded Trace Macrocell (version 4.x), with memory mapped access.
- "arm,coresight-etm4x", "arm,primecell";
-
- - Embedded Trace Macrocell (version 4.x), with system register access only.
- "arm,coresight-etm4x-sysreg";
-
- - Coresight programmable Replicator :
- "arm,coresight-dynamic-replicator", "arm,primecell";
-
- - System Trace Macrocell:
- "arm,coresight-stm", "arm,primecell"; [1]
- - Coresight Address Translation Unit (CATU)
- "arm,coresight-catu", "arm,primecell";
-
- - Coresight Cross Trigger Interface (CTI):
- "arm,coresight-cti", "arm,primecell";
- See coresight-cti.yaml for full CTI definitions.
-
- * reg: physical base address and length of the register
- set(s) of the component.
-
- * clocks: the clocks associated to this component.
-
- * clock-names: the name of the clocks referenced by the code.
- Since we are using the AMBA framework, the name of the clock
- providing the interconnect should be "apb_pclk", and some
- coresight blocks also have an additional clock "atclk", which
- clocks the core of that coresight component. The latter clock
- is optional.
-
- * port or ports: see "Graph bindings for Coresight" below.
-
-* Additional required property for Embedded Trace Macrocell (version 3.x and
- version 4.x):
- * cpu: the cpu phandle this ETM/PTM is affined to. Do not
- assume it to default to CPU0 if omitted.
-
-* Additional required properties for System Trace Macrocells (STM):
- * reg: along with the physical base address and length of the register
- set as described above, another entry is required to describe the
- mapping of the extended stimulus port area.
-
- * reg-names: the only acceptable values are "stm-base" and
- "stm-stimulus-base", each corresponding to the areas defined in "reg".
-
-* Required properties for Coresight Cross Trigger Interface (CTI)
- See coresight-cti.yaml for full CTI definitions.
-
-* Required properties for devices that don't show up on the AMBA bus, such as
- non-configurable replicators and non-configurable funnels:
-
- * compatible: Currently supported value is (note the absence of the
- AMBA markee):
- - Coresight Non-configurable Replicator:
- "arm,coresight-static-replicator";
- "arm,coresight-replicator"; (OBSOLETE. For backward
- compatibility and will be removed)
-
- - Coresight Non-configurable Funnel:
- "arm,coresight-static-funnel";
-
- * port or ports: see "Graph bindings for Coresight" below.
-
-* Optional properties for all components:
-
- * arm,coresight-loses-context-with-cpu : boolean. Indicates that the
- hardware will lose register context on CPU power down (e.g. CPUIdle).
- An example of where this may be needed are systems which contain a
- coresight component and CPU in the same power domain. When the CPU
- powers down the coresight component also powers down and loses its
- context. This property is currently only used for the ETM 4.x driver.
-
-* Optional properties for ETM/PTMs:
-
- * arm,cp14: must be present if the system accesses ETM/PTM management
- registers via co-processor 14.
-
- * qcom,skip-power-up: boolean. Indicates that an implementation can
- skip powering up the trace unit. TRCPDCR.PU does not have to be set
- on Qualcomm Technologies Inc. systems since ETMs are in the same power
- domain as their CPU cores. This property is required to identify such
- systems with hardware errata where the CPU watchdog counter is stopped
- when TRCPDCR.PU is set.
-
-* Optional property for TMC:
-
- * arm,buffer-size: size of contiguous buffer space for TMC ETR
- (embedded trace router). This property is obsolete. The buffer size
- can be configured dynamically via buffer_size property in sysfs.
-
- * arm,scatter-gather: boolean. Indicates that the TMC-ETR can safely
- use the SG mode on this system.
-
- * arm,max-burst-size: The maximum burst size initiated by TMC on the
- AXI master interface. The burst size can be in the range [0..15],
- the setting supports one data transfer per burst up to a maximum of
- 16 data transfers per burst.
-
-* Optional property for CATU :
- * interrupts : Exactly one SPI may be listed for reporting the address
- error
-
-* Optional property for configurable replicators:
-
- * qcom,replicator-loses-context: boolean. Indicates that the replicator
- will lose register context when AMBA clock is removed which is observed
- in some replicator designs.
-
-Graph bindings for Coresight
--------------------------------
-
-Coresight components are interconnected to create a data path for the flow of
-trace data generated from the "sources" to their collection points "sink".
-Each coresight component must describe the "input" and "output" connections.
-The connections must be described via generic DT graph bindings as described
-by the "bindings/graph.txt", where each "port" along with an "endpoint"
-component represents a hardware port and the connection.
-
- * All output ports must be listed inside a child node named "out-ports"
- * All input ports must be listed inside a child node named "in-ports".
- * Port address must match the hardware port number.
-
-Example:
-
-1. Sinks
- etb@20010000 {
- compatible = "arm,coresight-etb10", "arm,primecell";
- reg = <0 0x20010000 0 0x1000>;
-
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
- in-ports {
- port {
- etb_in_port: endpoint@0 {
- remote-endpoint = <&replicator_out_port0>;
- };
- };
- };
- };
-
- tpiu@20030000 {
- compatible = "arm,coresight-tpiu", "arm,primecell";
- reg = <0 0x20030000 0 0x1000>;
-
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
- in-ports {
- port {
- tpiu_in_port: endpoint@0 {
- remote-endpoint = <&replicator_out_port1>;
- };
- };
- };
- };
-
- etr@20070000 {
- compatible = "arm,coresight-tmc", "arm,primecell";
- reg = <0 0x20070000 0 0x1000>;
-
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
- in-ports {
- port {
- etr_in_port: endpoint {
- remote-endpoint = <&replicator2_out_port0>;
- };
- };
- };
-
- out-ports {
- port {
- etr_out_port: endpoint {
- remote-endpoint = <&catu_in_port>;
- };
- };
- };
- };
-
-2. Links
- replicator {
- /* non-configurable replicators don't show up on the
- * AMBA bus. As such no need to add "arm,primecell".
- */
- compatible = "arm,coresight-static-replicator";
-
- out-ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- /* replicator output ports */
- port@0 {
- reg = <0>;
- replicator_out_port0: endpoint {
- remote-endpoint = <&etb_in_port>;
- };
- };
-
- port@1 {
- reg = <1>;
- replicator_out_port1: endpoint {
- remote-endpoint = <&tpiu_in_port>;
- };
- };
- };
-
- in-ports {
- port {
- replicator_in_port0: endpoint {
- remote-endpoint = <&funnel_out_port0>;
- };
- };
- };
- };
-
- funnel {
- /*
- * non-configurable funnel don't show up on the AMBA
- * bus. As such no need to add "arm,primecell".
- */
- compatible = "arm,coresight-static-funnel";
- clocks = <&crg_ctrl HI3660_PCLK>;
- clock-names = "apb_pclk";
-
- out-ports {
- port {
- combo_funnel_out: endpoint {
- remote-endpoint = <&top_funnel_in>;
- };
- };
- };
-
- in-ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- combo_funnel_in0: endpoint {
- remote-endpoint = <&cluster0_etf_out>;
- };
- };
-
- port@1 {
- reg = <1>;
- combo_funnel_in1: endpoint {
- remote-endpoint = <&cluster1_etf_out>;
- };
- };
- };
- };
-
- funnel@20040000 {
- compatible = "arm,coresight-dynamic-funnel", "arm,primecell";
- reg = <0 0x20040000 0 0x1000>;
-
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
- out-ports {
- port {
- funnel_out_port0: endpoint {
- remote-endpoint =
- <&replicator_in_port0>;
- };
- };
- };
-
- in-ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- funnel_in_port0: endpoint {
- remote-endpoint = <&ptm0_out_port>;
- };
- };
-
- port@1 {
- reg = <1>;
- funnel_in_port1: endpoint {
- remote-endpoint = <&ptm1_out_port>;
- };
- };
-
- port@2 {
- reg = <2>;
- funnel_in_port2: endpoint {
- remote-endpoint = <&etm0_out_port>;
- };
- };
-
- };
- };
-
-3. Sources
- ptm@2201c000 {
- compatible = "arm,coresight-etm3x", "arm,primecell";
- reg = <0 0x2201c000 0 0x1000>;
-
- cpu = <&cpu0>;
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
- out-ports {
- port {
- ptm0_out_port: endpoint {
- remote-endpoint = <&funnel_in_port0>;
- };
- };
- };
- };
-
- ptm@2201d000 {
- compatible = "arm,coresight-etm3x", "arm,primecell";
- reg = <0 0x2201d000 0 0x1000>;
-
- cpu = <&cpu1>;
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
- out-ports {
- port {
- ptm1_out_port: endpoint {
- remote-endpoint = <&funnel_in_port1>;
- };
- };
- };
- };
-
-4. STM
- stm@20100000 {
- compatible = "arm,coresight-stm", "arm,primecell";
- reg = <0 0x20100000 0 0x1000>,
- <0 0x28000000 0 0x180000>;
- reg-names = "stm-base", "stm-stimulus-base";
-
- clocks = <&soc_smc50mhz>;
- clock-names = "apb_pclk";
- out-ports {
- port {
- stm_out_port: endpoint {
- remote-endpoint = <&main_funnel_in_port2>;
- };
- };
- };
- };
-
-5. CATU
-
- catu@207e0000 {
- compatible = "arm,coresight-catu", "arm,primecell";
- reg = <0 0x207e0000 0 0x1000>;
-
- clocks = <&oscclk6a>;
- clock-names = "apb_pclk";
-
- interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
- in-ports {
- port {
- catu_in_port: endpoint {
- remote-endpoint = <&etr_out_port>;
- };
- };
- };
- };
-
-[1]. There is currently two version of STM: STM32 and STM500. Both
-have the same HW interface and as such don't need an explicit binding name.
diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
index ed04650291a8..5c13b73e4d57 100644
--- a/Documentation/devicetree/bindings/arm/cpus.yaml
+++ b/Documentation/devicetree/bindings/arm/cpus.yaml
@@ -138,6 +138,7 @@ properties:
- arm,cortex-a76
- arm,cortex-a77
- arm,cortex-a78
+ - arm,cortex-a78ae
- arm,cortex-a510
- arm,cortex-a710
- arm,cortex-m0
@@ -173,6 +174,7 @@ properties:
- nvidia,tegra194-carmel
- qcom,krait
- qcom,kryo
+ - qcom,kryo240
- qcom,kryo250
- qcom,kryo260
- qcom,kryo280
@@ -221,6 +223,7 @@ properties:
- qcom,kpss-acc-v1
- qcom,kpss-acc-v2
- qcom,msm8226-smp
+ - qcom,msm8909-smp
# Only valid on ARM 32-bit, see above for ARM v8 64-bit
- qcom,msm8916-smp
- renesas,apmu
diff --git a/Documentation/devicetree/bindings/arm/digicolor.yaml b/Documentation/devicetree/bindings/arm/digicolor.yaml
index a35de3c9e284..0cf9ddaa527e 100644
--- a/Documentation/devicetree/bindings/arm/digicolor.yaml
+++ b/Documentation/devicetree/bindings/arm/digicolor.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/digicolor.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Conexant Digicolor Platforms Device Tree Bindings
+title: Conexant Digicolor Platforms
maintainers:
- Baruch Siach <baruch@tkos.co.il>
diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
deleted file mode 100644
index a87ec15e28d2..000000000000
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ /dev/null
@@ -1,271 +0,0 @@
-NXP i.MX System Controller Firmware (SCFW)
---------------------------------------------------------------------
-
-The System Controller Firmware (SCFW) is a low-level system function
-which runs on a dedicated Cortex-M core to provide power, clock, and
-resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
-(QM, QP), and i.MX8QX (QXP, DX).
-
-The AP communicates with the SC using a multi-ported MU module found
-in the LSIO subsystem. The current definition of this MU module provides
-5 remote AP connections to the SC to support up to 5 execution environments
-(TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces
-with the LSIO DSC IP bus. The SC firmware will communicate with this MU
-using the MSI bus.
-
-System Controller Device Node:
-============================================================
-
-The scu node with the following properties shall be under the /firmware/ node.
-
-Required properties:
--------------------
-- compatible: should be "fsl,imx-scu".
-- mbox-names: should include "tx0", "tx1", "tx2", "tx3",
- "rx0", "rx1", "rx2", "rx3";
- include "gip3" if want to support general MU interrupt.
-- mboxes: List of phandle of 4 MU channels for tx, 4 MU channels for
- rx, and 1 optional MU channel for general interrupt.
- All MU channels must be in the same MU instance.
- Cross instances are not allowed. The MU instance can only
- be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users need
- to make sure use the one which is not conflict with other
- execution environments. e.g. ATF.
- Note:
- Channel 0 must be "tx0" or "rx0".
- Channel 1 must be "tx1" or "rx1".
- Channel 2 must be "tx2" or "rx2".
- Channel 3 must be "tx3" or "rx3".
- General interrupt rx channel must be "gip3".
- e.g.
- mboxes = <&lsio_mu1 0 0
- &lsio_mu1 0 1
- &lsio_mu1 0 2
- &lsio_mu1 0 3
- &lsio_mu1 1 0
- &lsio_mu1 1 1
- &lsio_mu1 1 2
- &lsio_mu1 1 3
- &lsio_mu1 3 3>;
- See Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
- for detailed mailbox binding.
-
-Note: Each mu which supports general interrupt should have an alias correctly
-numbered in "aliases" node.
-e.g.
-aliases {
- mu1 = &lsio_mu1;
-};
-
-i.MX SCU Client Device Node:
-============================================================
-
-Client nodes are maintained as children of the relevant IMX-SCU device node.
-
-Power domain bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding for the SCU power domain providers uses the generic power
-domain binding[2].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-scu-pd",
- "fsl,imx8qxp-scu-pd"
- followed by "fsl,scu-pd"
-
-- #power-domain-cells: Must be 1. Contains the Resource ID used by
- SCU commands.
- See detailed Resource ID list from:
- include/dt-bindings/firmware/imx/rsrc.h
-
-Clock bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the common clock binding[1].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8dxl-clk"
- "fsl,imx8qm-clk"
- "fsl,imx8qxp-clk"
- followed by "fsl,scu-clk"
-- #clock-cells: Should be 2.
- Contains the Resource and Clock ID value.
-- clocks: List of clock specifiers, must contain an entry for
- each required entry in clock-names
-- clock-names: Should include entries "xtal_32KHz", "xtal_24MHz"
-
-The clock consumer should specify the desired clock by having the clock
-ID in its "clocks" phandle cell.
-
-See the full list of clock IDs from:
-include/dt-bindings/clock/imx8qxp-clock.h
-
-Pinctrl bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-This binding uses the i.MX common pinctrl binding[3].
-
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-iomuxc",
- "fsl,imx8qxp-iomuxc",
- "fsl,imx8dxl-iomuxc".
-
-Required properties for Pinctrl sub nodes:
-- fsl,pins: Each entry consists of 3 integers which represents
- the mux and config setting for one pin. The first 2
- integers <pin_id mux_mode> are specified using a
- PIN_FUNC_ID macro, which can be found in
- <dt-bindings/pinctrl/pads-imx8qm.h>,
- <dt-bindings/pinctrl/pads-imx8qxp.h>,
- <dt-bindings/pinctrl/pads-imx8dxl.h>.
- The last integer CONFIG is the pad setting value like
- pull-up on this pin.
-
- Please refer to i.MX8QXP Reference Manual for detailed
- CONFIG settings.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/power/power-domain.yaml
-[3] Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
-
-RTC bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be "fsl,imx8qxp-sc-rtc";
-
-OCOTP bindings based on SCU Message Protocol
-------------------------------------------------------------
-Required properties:
-- compatible: Should be one of:
- "fsl,imx8qm-scu-ocotp",
- "fsl,imx8qxp-scu-ocotp".
-- #address-cells: Must be 1. Contains byte index
-- #size-cells: Must be 1. Contains byte length
-
-Optional Child nodes:
-
-- Data cells of ocotp:
- Detailed bindings are described in bindings/nvmem/nvmem.txt
-
-Watchdog bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
- "fsl,imx8qxp-sc-wdt"
- followed by "fsl,imx-sc-wdt";
-Optional properties:
-- timeout-sec: contains the watchdog timeout in seconds.
-
-SCU key bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
- "fsl,imx8qxp-sc-key"
- followed by "fsl,imx-sc-key";
-- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
-
-Thermal bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: Should be :
- "fsl,imx8qxp-sc-thermal"
- followed by "fsl,imx-sc-thermal";
-
-- #thermal-sensor-cells: See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml
- for a description.
-
-Example (imx8qxp):
--------------
-aliases {
- mu1 = &lsio_mu1;
-};
-
-lsio_mu1: mailbox@5d1c0000 {
- ...
- #mbox-cells = <2>;
-};
-
-firmware {
- scu {
- compatible = "fsl,imx-scu";
- mbox-names = "tx0", "tx1", "tx2", "tx3",
- "rx0", "rx1", "rx2", "rx3",
- "gip3";
- mboxes = <&lsio_mu1 0 0
- &lsio_mu1 0 1
- &lsio_mu1 0 2
- &lsio_mu1 0 3
- &lsio_mu1 1 0
- &lsio_mu1 1 1
- &lsio_mu1 1 2
- &lsio_mu1 1 3
- &lsio_mu1 3 3>;
-
- clk: clk {
- compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
- #clock-cells = <2>;
- };
-
- iomuxc {
- compatible = "fsl,imx8qxp-iomuxc";
-
- pinctrl_lpuart0: lpuart0grp {
- fsl,pins = <
- SC_P_UART0_RX_ADMA_UART0_RX 0x06000020
- SC_P_UART0_TX_ADMA_UART0_TX 0x06000020
- >;
- };
- ...
- };
-
- ocotp: imx8qx-ocotp {
- compatible = "fsl,imx8qxp-scu-ocotp";
- #address-cells = <1>;
- #size-cells = <1>;
-
- fec_mac0: mac@2c4 {
- reg = <0x2c4 8>;
- };
- };
-
- pd: imx8qx-pd {
- compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
- #power-domain-cells = <1>;
- };
-
- rtc: rtc {
- compatible = "fsl,imx8qxp-sc-rtc";
- };
-
- scu_key: scu-key {
- compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
- linux,keycodes = <KEY_POWER>;
- };
-
- watchdog {
- compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
- timeout-sec = <60>;
- };
-
- tsens: thermal-sensor {
- compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
- #thermal-sensor-cells = <1>;
- };
- };
-};
-
-serial@5a060000 {
- ...
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_lpuart0>;
- clocks = <&uart0_clk IMX_SC_R_UART_0 IMX_SC_PM_CLK_PER>;
- clock-names = "ipg";
- power-domains = <&pd IMX_SC_R_UART_0>;
-};
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index ef524378d449..fbfc4f99c01e 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/fsl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale i.MX Platforms Device Tree Bindings
+title: Freescale i.MX Platforms
maintainers:
- Shawn Guo <shawnguo@kernel.org>
@@ -321,6 +321,7 @@ properties:
- enum:
- toradex,apalis_imx6q-ixora # Apalis iMX6Q/D Module on Ixora Carrier Board
- toradex,apalis_imx6q-ixora-v1.1 # Apalis iMX6Q/D Module on Ixora V1.1 Carrier Board
+ - toradex,apalis_imx6q-ixora-v1.2 # Apalis iMX6Q/D Module on Ixora V1.2 Carrier Board
- toradex,apalis_imx6q-eval # Apalis iMX6Q/D Module on Apalis Evaluation Board
- const: toradex,apalis_imx6q
- const: fsl,imx6q
@@ -553,8 +554,7 @@ properties:
- engicam,imx6ul-isiot # Engicam Is.IoT MX6UL eMMC/NAND Starter kit
- fsl,imx6ul-14x14-evk # i.MX6 UltraLite 14x14 EVK Board
- karo,imx6ul-tx6ul # Ka-Ro electronics TXUL-0010 Module
- - kontron,imx6ul-n6310-som # Kontron N6310 SOM
- - kontron,imx6ul-n6311-som # Kontron N6311 SOM
+ - kontron,sl-imx6ul # Kontron SL i.MX6UL SoM
- prt,prti6g # Protonic PRTI6G Board
- technexion,imx6ul-pico-dwarf # TechNexion i.MX6UL Pico-Dwarf
- technexion,imx6ul-pico-hobbit # TechNexion i.MX6UL Pico-Hobbit
@@ -590,23 +590,17 @@ properties:
- const: phytec,imx6ul-pcl063 # PHYTEC phyCORE-i.MX 6UL
- const: fsl,imx6ul
- - description: Kontron N6310 S Board
+ - description: Kontron BL i.MX6UL (N631X S) Board
items:
- - const: kontron,imx6ul-n6310-s
- - const: kontron,imx6ul-n6310-som
+ - const: kontron,bl-imx6ul # Kontron BL i.MX6UL Carrier Board
+ - const: kontron,sl-imx6ul # Kontron SL i.MX6UL SoM
- const: fsl,imx6ul
- - description: Kontron N6311 S Board
+ - description: Kontron BL i.MX6UL 43 (N631X S 43) Board
items:
- - const: kontron,imx6ul-n6311-s
- - const: kontron,imx6ul-n6311-som
- - const: fsl,imx6ul
-
- - description: Kontron N6310 S 43 Board
- items:
- - const: kontron,imx6ul-n6310-s-43
- - const: kontron,imx6ul-n6310-s
- - const: kontron,imx6ul-n6310-som
+ - const: kontron,bl-imx6ul-43 # Kontron BL i.MX6UL Carrier Board with 4.3" Display
+ - const: kontron,bl-imx6ul # Kontron BL i.MX6UL Carrier Board
+ - const: kontron,sl-imx6ul # Kontron SL i.MX6UL SoM
- const: fsl,imx6ul
- description: TQ-Systems TQMa6UL1 SoM on MBa6ULx board
@@ -636,7 +630,7 @@ properties:
- enum:
- fsl,imx6ull-14x14-evk # i.MX6 UltraLiteLite 14x14 EVK Board
- joz,jozacp # JOZ Access Point
- - kontron,imx6ull-n6411-som # Kontron N6411 SOM
+ - kontron,sl-imx6ull # Kontron SL i.MX6ULL SoM
- myir,imx6ull-mys-6ulx-eval # MYiR Tech iMX6ULL Evaluation Board
- toradex,colibri-imx6ull # Colibri iMX6ULL Modules
- toradex,colibri-imx6ull-emmc # Colibri iMX6ULL 1GB (eMMC) Module
@@ -670,37 +664,37 @@ properties:
- description: i.MX6ULL Boards with Toradex Colibri iMX6ULL Modules
items:
- enum:
- - toradex,colibri-imx6ull-aster # Colibri iMX6ULL Module on Aster Carrier Board
- - toradex,colibri-imx6ull-eval # Colibri iMX6ULL Module on Colibri Evaluation Board V3
- - toradex,colibri-imx6ull-iris # Colibri iMX6ULL Module on Iris Carrier Board
- - toradex,colibri-imx6ull-iris-v2 # Colibri iMX6ULL Module on Iris V2 Carrier Board
+ - toradex,colibri-imx6ull-aster # Aster Carrier Board
+ - toradex,colibri-imx6ull-eval # Colibri Evaluation Board V3
+ - toradex,colibri-imx6ull-iris # Iris Carrier Board
+ - toradex,colibri-imx6ull-iris-v2 # Iris V2 Carrier Board
- const: toradex,colibri-imx6ull # Colibri iMX6ULL Module
- const: fsl,imx6ull
- description: i.MX6ULL Boards with Toradex Colibri iMX6ULL 1GB (eMMC) Module
items:
- enum:
- - toradex,colibri-imx6ull-emmc-aster # Colibri iMX6ULL 1G (eMMC) on Aster Carrier Board
- - toradex,colibri-imx6ull-emmc-eval # Colibri iMX6ULL 1G (eMMC) on Colibri Evaluation B. V3
- - toradex,colibri-imx6ull-emmc-iris # Colibri iMX6ULL 1G (eMMC) on Iris Carrier Board
- - toradex,colibri-imx6ull-emmc-iris-v2 # Colibri iMX6ULL 1G (eMMC) on Iris V2 Carrier Board
+ - toradex,colibri-imx6ull-emmc-aster # Aster Carrier Board
+ - toradex,colibri-imx6ull-emmc-eval # Colibri Evaluation B. V3
+ - toradex,colibri-imx6ull-emmc-iris # Iris Carrier Board
+ - toradex,colibri-imx6ull-emmc-iris-v2 # Iris V2 Carrier Board
- const: toradex,colibri-imx6ull-emmc # Colibri iMX6ULL 1GB (eMMC) Module
- const: fsl,imx6ull
- description: i.MX6ULL Boards with Toradex Colibri iMX6ULL Wi-Fi / BT Modules
items:
- enum:
- - toradex,colibri-imx6ull-wifi-eval # Colibri iMX6ULL Wi-Fi / BT M. on Colibri Eval. B. V3
- - toradex,colibri-imx6ull-wifi-aster # Colibri iMX6ULL Wi-Fi / BT M. on Aster Carrier Board
- - toradex,colibri-imx6ull-wifi-iris # Colibri iMX6ULL Wi-Fi / BT M. on Iris Carrier Board
- - toradex,colibri-imx6ull-wifi-iris-v2 # Colibri iMX6ULL Wi-Fi / BT M. on Iris V2 Carrier Board
+ - toradex,colibri-imx6ull-wifi-eval # Colibri Eval. B. V3
+ - toradex,colibri-imx6ull-wifi-aster # Aster Carrier Board
+ - toradex,colibri-imx6ull-wifi-iris # Iris Carrier Board
+ - toradex,colibri-imx6ull-wifi-iris-v2 # Iris V2 Carrier Board
- const: toradex,colibri-imx6ull-wifi # Colibri iMX6ULL Wi-Fi / BT Module
- const: fsl,imx6ull
- - description: Kontron N6411 S Board
+ - description: Kontron BL i.MX6ULL (N6411 S) Board
items:
- - const: kontron,imx6ull-n6411-s
- - const: kontron,imx6ull-n6411-som
+ - const: kontron,bl-imx6ull # Kontron BL i.MX6ULL Carrier Board
+ - const: kontron,sl-imx6ull # Kontron SL i.MX6ULL SoM
- const: fsl,imx6ull
- description: TQ Systems TQMa6ULLx SoM on MBa6ULx board
@@ -738,6 +732,8 @@ properties:
- enum:
- toradex,colibri-imx7s-aster # Module on Aster Carrier Board
- toradex,colibri-imx7s-eval-v3 # Module on Colibri Evaluation Board V3
+ - toradex,colibri-imx7s-iris # Module on Iris Carrier Board
+ - toradex,colibri-imx7s-iris-v2 # Module on Iris Carrier Board V2
- const: toradex,colibri-imx7s
- const: fsl,imx7s
@@ -789,8 +785,10 @@ properties:
- description: i.MX7D Boards with Toradex Colibri i.MX7D Module
items:
- enum:
- - toradex,colibri-imx7d-aster # Colibri iMX7D Module on Aster Carrier Board
- - toradex,colibri-imx7d-eval-v3 # Colibri iMX7D Module on Colibri Evaluation Board V3
+ - toradex,colibri-imx7d-aster # Aster Carrier Board
+ - toradex,colibri-imx7d-eval-v3 # Colibri Evaluation Board V3
+ - toradex,colibri-imx7d-iris # Iris Carrier Board
+ - toradex,colibri-imx7d-iris-v2 # Iris Carrier Board V2
- const: toradex,colibri-imx7d
- const: fsl,imx7d
@@ -799,6 +797,8 @@ properties:
- enum:
- toradex,colibri-imx7d-emmc-aster # Module on Aster Carrier Board
- toradex,colibri-imx7d-emmc-eval-v3 # Module on Colibri Evaluation Board V3
+ - toradex,colibri-imx7d-emmc-iris # Module on Iris Carrier Board
+ - toradex,colibri-imx7d-emmc-iris-v2 # Module on Iris Carrier Board V2
- const: toradex,colibri-imx7d-emmc
- const: fsl,imx7d
@@ -818,13 +818,15 @@ properties:
- emtrion,emcon-mx8mm-avari # emCON-MX8MM SoM on Avari Base
- fsl,imx8mm-ddr4-evk # i.MX8MM DDR4 EVK Board
- fsl,imx8mm-evk # i.MX8MM EVK Board
+ - gateworks,imx8mm-gw7904
- gw,imx8mm-gw71xx-0x # i.MX8MM Gateworks Development Kit
- gw,imx8mm-gw72xx-0x # i.MX8MM Gateworks Development Kit
- gw,imx8mm-gw73xx-0x # i.MX8MM Gateworks Development Kit
- gw,imx8mm-gw7901 # i.MX8MM Gateworks Board
- gw,imx8mm-gw7902 # i.MX8MM Gateworks Board
- gw,imx8mm-gw7903 # i.MX8MM Gateworks Board
- - kontron,imx8mm-n801x-som # i.MX8MM Kontron SL (N801X) SOM
+ - kontron,imx8mm-sl # i.MX8MM Kontron SL (N801X) SOM
+ - kontron,imx8mm-osm-s # i.MX8MM Kontron OSM-S (N802X) SOM
- menlo,mx8menlo # i.MX8MM Menlo board with Verdin SoM
- toradex,verdin-imx8mm # Verdin iMX8M Mini Modules
- toradex,verdin-imx8mm-nonwifi # Verdin iMX8M Mini Modules without Wi-Fi / BT
@@ -843,8 +845,14 @@ properties:
- description: Kontron BL i.MX8MM (N801X S) Board
items:
- - const: kontron,imx8mm-n801x-s
- - const: kontron,imx8mm-n801x-som
+ - const: kontron,imx8mm-bl
+ - const: kontron,imx8mm-sl
+ - const: fsl,imx8mm
+
+ - description: Kontron BL i.MX8MM OSM-S (N802X S) Board
+ items:
+ - const: kontron,imx8mm-bl-osm-s
+ - const: kontron,imx8mm-osm-s
- const: fsl,imx8mm
- description: Toradex Boards with Verdin iMX8M Mini Modules
@@ -865,6 +873,12 @@ properties:
- const: toradex,verdin-imx8mm # Verdin iMX8M Mini Module
- const: fsl,imx8mm
+ - description: PHYTEC phyCORE-i.MX8MM SoM based boards
+ items:
+ - const: phytec,imx8mm-phyboard-polis-rdk # phyBOARD-Polis RDK
+ - const: phytec,imx8mm-phycore-som # phyCORE-i.MX8MM SoM
+ - const: fsl,imx8mm
+
- description: Variscite VAR-SOM-MX8MM based boards
items:
- const: variscite,var-som-mx8mm-symphony
@@ -914,6 +928,8 @@ properties:
- description: i.MX8MP based Boards
items:
- enum:
+ - dh,imx8mp-dhcom-som # i.MX8MP DHCOM SoM
+ - dh,imx8mp-dhcom-pdk2 # i.MX8MP DHCOM SoM on PDK2 board
- fsl,imx8mp-evk # i.MX8MP EVK Board
- gateworks,imx8mp-gw74xx # i.MX8MP Gateworks Board
- toradex,verdin-imx8mp # Verdin iMX8M Plus Modules
@@ -921,6 +937,13 @@ properties:
- toradex,verdin-imx8mp-wifi # Verdin iMX8M Plus Wi-Fi / BT Modules
- const: fsl,imx8mp
+ - description: Avnet (MSC Branded) Boards with SM2S i.MX8M Plus Modules
+ items:
+ - const: avnet,sm2s-imx8mp-14N0600E-ep1 # SM2S-IMX8PLUS-14N0600E on SM2-MB-EP1 Carrier Board
+ - const: avnet,sm2s-imx8mp-14N0600E # 14N0600E variant of SM2S-IMX8PLUS SoM
+ - const: avnet,sm2s-imx8mp # SM2S-IMX8PLUS SoM
+ - const: fsl,imx8mp
+
- description: Engicam i.Core MX8M Plus SoM based boards
items:
- enum:
@@ -952,6 +975,18 @@ properties:
- const: toradex,verdin-imx8mp # Verdin iMX8M Plus Module
- const: fsl,imx8mp
+ - description:
+ TQMa8MPxL is a series of LGA SOM featuring NXP i.MX8MP system-on-chip
+ variants. It is designed to be soldered on different carrier boards.
+ All CPU variants use the same device tree hence only one compatible
+ is needed. MBa8MPxL mainboard can be used as starterkit or in a boxed
+ version as an industrial computing device.
+ items:
+ - enum:
+ - tq,imx8mp-tqma8mpql-mba8mpxl # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM on MBa8MPxL
+ - const: tq,imx8mp-tqma8mpql # TQ-Systems GmbH i.MX8MP TQMa8MPQL SOM
+ - const: fsl,imx8mp
+
- description: i.MX8MQ based Boards
items:
- enum:
@@ -1007,6 +1042,12 @@ properties:
- toradex,colibri-imx8x # Colibri iMX8X Modules
- const: fsl,imx8qxp
+ - description: i.MX8DXL based Boards
+ items:
+ - enum:
+ - fsl,imx8dxl-evk # i.MX8DXL EVK Board
+ - const: fsl,imx8dxl
+
- description: i.MX8QXP Boards with Toradex Coilbri iMX8X Modules
items:
- enum:
@@ -1020,6 +1061,12 @@ properties:
- fsl,imx8ulp-evk # i.MX8ULP EVK Board
- const: fsl,imx8ulp
+ - description: i.MX93 based Boards
+ items:
+ - enum:
+ - fsl,imx93-11x11-evk # i.MX93 11x11 EVK Board
+ - const: fsl,imx93
+
- description:
Freescale Vybrid Platform Device Tree Bindings
diff --git a/Documentation/devicetree/bindings/arm/intel,keembay.yaml b/Documentation/devicetree/bindings/arm/intel,keembay.yaml
index 107e686ab207..53d2ce02b207 100644
--- a/Documentation/devicetree/bindings/arm/intel,keembay.yaml
+++ b/Documentation/devicetree/bindings/arm/intel,keembay.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/intel,keembay.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Keem Bay platform device tree bindings
+title: Keem Bay platform
maintainers:
- Paul J. Murphy <paul.j.murphy@intel.com>
diff --git a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
index 61a454a40e87..4b4dcf551eb6 100644
--- a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
+++ b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/intel,socfpga.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel SoCFPGA platform device tree bindings
+title: Intel SoCFPGA platform
maintainers:
- Dinh Nguyen <dinguyen@kernel.org>
diff --git a/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml b/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
index 230bffeec0e5..553dcbc70e35 100644
--- a/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
+++ b/Documentation/devicetree/bindings/arm/intel-ixp4xx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/intel-ixp4xx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel IXP4xx Device Tree Bindings
+title: Intel IXP4xx
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
index 052a967c1f28..c83245065d44 100644
--- a/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
@@ -72,7 +72,7 @@ mpp19 19 gpio, uart0(rxd), sdio(pw_off)
GPIO:
-----
For common binding part and usage, refer to
-Documentation/devicetree/bindings/gpio/gpio-mvebu.txt.
+Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml.
Required properties:
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
index f6d6642d81c0..29fa93dad52b 100644
--- a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
@@ -1,21 +1,3 @@
-Marvell Armada 37xx Platforms Device Tree Bindings
---------------------------------------------------
-
-Boards using a SoC of the Marvell Armada 37xx family must carry the
-following root node property:
-
- - compatible: must contain "marvell,armada3710"
-
-In addition, boards using the Marvell Armada 3720 SoC shall have the
-following property before the previous one:
-
- - compatible: must contain "marvell,armada3720"
-
-Example:
-
-compatible = "marvell,armada-3720-db", "marvell,armada3720", "marvell,armada3710";
-
-
Power management
----------------
@@ -48,11 +30,3 @@ avs: avs@11500 {
compatible = "marvell,armada-3700-avs", "syscon";
reg = <0x11500 0x40>;
}
-
-
-CZ.NIC's Turris Mox SOHO router Device Tree Bindings
-----------------------------------------------------
-
-Required root node property:
-
- - compatible: must contain "cznic,turris-mox"
diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml
new file mode 100644
index 000000000000..6905d29f3108
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/armada-37xx.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/armada-37xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada 37xx Platforms
+
+maintainers:
+ - Robert Marko <robert.marko@sartura.hr>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: Armada 3720 SoC boards
+ items:
+ - enum:
+ - cznic,turris-mox
+ - globalscale,espressobin
+ - marvell,armada-3720-db
+ - methode,edpu
+ - methode,udpu
+ - const: marvell,armada3720
+ - const: marvell,armada3710
+
+ - description: Globalscale Espressobin boards
+ items:
+ - enum:
+ - globalscale,espressobin-emmc
+ - globalscale,espressobin-ultra
+ - globalscale,espressobin-v7
+ - const: globalscale,espressobin
+ - const: marvell,armada3720
+ - const: marvell,armada3710
+
+ - description: Globalscale Espressobin V7 boards
+ items:
+ - enum:
+ - globalscale,espressobin-v7-emmc
+ - const: globalscale,espressobin-v7
+ - const: globalscale,espressobin
+ - const: marvell,armada3720
+ - const: marvell,armada3710
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
index 0705e765f432..d84105c7c935 100644
--- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
@@ -156,7 +156,7 @@ GPIO:
-----
For common binding part and usage, refer to
-Documentation/devicetree/bindings/gpio/gpio-mvebu.txt.
+Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml.
Required properties:
diff --git a/Documentation/devicetree/bindings/arm/marvell/marvell,ac5.yaml b/Documentation/devicetree/bindings/arm/marvell/marvell,ac5.yaml
new file mode 100644
index 000000000000..8960fb8b2b2f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/marvell/marvell,ac5.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/marvell/marvell,ac5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Alleycat5/5X Platforms
+
+maintainers:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: Alleycat5 (98DX25xx) Reference Design
+ items:
+ - enum:
+ - marvell,rd-ac5
+ - const: marvell,ac5
+
+ - description: Alleycat5X (98DX35xx) Reference Design
+ items:
+ - enum:
+ - marvell,rd-ac5x
+ - const: marvell,ac5x
+ - const: marvell,ac5
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/mediatek.yaml b/Documentation/devicetree/bindings/arm/mediatek.yaml
index 4a2bd9759c47..d76ce4c3819d 100644
--- a/Documentation/devicetree/bindings/arm/mediatek.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/mediatek.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek SoC based Platforms Device Tree Bindings
+title: MediaTek SoC based Platforms
maintainers:
- Sean Wang <sean.wang@mediatek.com>
@@ -131,6 +131,36 @@ properties:
- enum:
- mediatek,mt8183-evb
- const: mediatek,mt8183
+ - description: Google Hayato
+ items:
+ - const: google,hayato-rev1
+ - const: google,hayato
+ - const: mediatek,mt8192
+ - description: Google Spherion (Acer Chromebook 514)
+ items:
+ - const: google,spherion-rev3
+ - const: google,spherion-rev2
+ - const: google,spherion-rev1
+ - const: google,spherion-rev0
+ - const: google,spherion
+ - const: mediatek,mt8192
+ - description: Acer Tomato (Acer Chromebook Spin 513 CP513-2H)
+ items:
+ - enum:
+ - google,tomato-rev2
+ - google,tomato-rev1
+ - const: google,tomato
+ - const: mediatek,mt8195
+ - description: Acer Tomato rev3 - 4 (Acer Chromebook Spin 513 CP513-2H)
+ items:
+ - const: google,tomato-rev4
+ - const: google,tomato-rev3
+ - const: google,tomato
+ - const: mediatek,mt8195
+ - items:
+ - enum:
+ - mediatek,mt8186-evb
+ - const: mediatek,mt8186
- items:
- enum:
- mediatek,mt8192-evb
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
index 8681b785ed6d..1d7c837d9378 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
@@ -23,6 +23,7 @@ properties:
- mediatek,mt2701-infracfg
- mediatek,mt2712-infracfg
- mediatek,mt6765-infracfg
+ - mediatek,mt6795-infracfg
- mediatek,mt6779-infracfg_ao
- mediatek,mt6797-infracfg
- mediatek,mt7622-infracfg
@@ -60,6 +61,7 @@ if:
enum:
- mediatek,mt2701-infracfg
- mediatek,mt2712-infracfg
+ - mediatek,mt6795-infracfg
- mediatek,mt7622-infracfg
- mediatek,mt7986-infracfg
- mediatek,mt8135-infracfg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
index 6ad023eec193..eb451bec23d3 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
@@ -25,6 +25,7 @@ properties:
- mediatek,mt2712-mmsys
- mediatek,mt6765-mmsys
- mediatek,mt6779-mmsys
+ - mediatek,mt6795-mmsys
- mediatek,mt6797-mmsys
- mediatek,mt8167-mmsys
- mediatek,mt8173-mmsys
@@ -52,7 +53,8 @@ properties:
description:
Using mailbox to communicate with GCE, it should have this
property and list of phandle, mailbox specifiers. See
- Documentation/devicetree/bindings/mailbox/mtk-gce.txt for details.
+ Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
+ for details.
$ref: /schemas/types.yaml#/definitions/phandle-array
mediatek,gce-client-reg:
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
index 787d6673f952..84fb0a146b6e 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-wed.yaml
@@ -20,6 +20,7 @@ properties:
items:
- enum:
- mediatek,mt7622-wed
+ - mediatek,mt7986-wed
- const: syscon
reg:
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wed-pcie.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wed-pcie.yaml
new file mode 100644
index 000000000000..96221f51c1c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7986-wed-pcie.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7986-wed-pcie.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek PCIE WED Controller for MT7986
+
+maintainers:
+ - Lorenzo Bianconi <lorenzo@kernel.org>
+ - Felix Fietkau <nbd@nbd.name>
+
+description:
+ The mediatek WED PCIE provides a configuration interface for PCIE
+ controller on MT7986 soc.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt7986-wed-pcie
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ wed_pcie: wed-pcie@10003000 {
+ compatible = "mediatek,mt7986-wed-pcie",
+ "syscon";
+ reg = <0 0x10003000 0 0x10>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml
index 0886e2e335bb..661047d26e11 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8186-sys-clock.yaml
@@ -39,6 +39,9 @@ properties:
'#clock-cells':
const: 1
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml
index c8c67c033f8c..b57cc2e69efb 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-clock.yaml
@@ -24,7 +24,6 @@ properties:
- mediatek,mt8192-imp_iic_wrap_w
- mediatek,mt8192-imp_iic_wrap_n
- mediatek,mt8192-msdc_top
- - mediatek,mt8192-msdc
- mediatek,mt8192-mfgcfg
- mediatek,mt8192-imgsys
- mediatek,mt8192-imgsys2
@@ -108,13 +107,6 @@ examples:
};
- |
- msdc: clock-controller@11f60000 {
- compatible = "mediatek,mt8192-msdc";
- reg = <0x11f60000 0x1000>;
- #clock-cells = <1>;
- };
-
- - |
mfgcfg: clock-controller@13fbf000 {
compatible = "mediatek,mt8192-mfgcfg";
reg = <0x13fbf000 0x1000>;
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
index 5705bcf1fe47..27f79175c678 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
@@ -29,6 +29,9 @@ properties:
'#clock-cells':
const: 1
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
index 57a1503d95fe..95b6bdf99936 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
@@ -37,6 +37,9 @@ properties:
'#clock-cells':
const: 1
+ '#reset-cells':
+ const: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml
index 611f666f359d..ef62cbb13590 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,pericfg.yaml
@@ -21,11 +21,13 @@ properties:
- mediatek,mt2701-pericfg
- mediatek,mt2712-pericfg
- mediatek,mt6765-pericfg
+ - mediatek,mt6795-pericfg
- mediatek,mt7622-pericfg
- mediatek,mt7629-pericfg
- mediatek,mt8135-pericfg
- mediatek,mt8173-pericfg
- mediatek,mt8183-pericfg
+ - mediatek,mt8186-pericfg
- mediatek,mt8195-pericfg
- mediatek,mt8516-pericfg
- const: syscon
diff --git a/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml b/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml
index 6193388c6318..9a0d54e9799c 100644
--- a/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml
+++ b/Documentation/devicetree/bindings/arm/microchip,sparx5.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/microchip,sparx5.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip Sparx5 Boards Device Tree Bindings
+title: Microchip Sparx5 Boards
maintainers:
- Lars Povlsen <lars.povlsen@microchip.com>
diff --git a/Documentation/devicetree/bindings/arm/moxart.yaml b/Documentation/devicetree/bindings/arm/moxart.yaml
index 670d24ce8ec5..42565280914c 100644
--- a/Documentation/devicetree/bindings/arm/moxart.yaml
+++ b/Documentation/devicetree/bindings/arm/moxart.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/moxart.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MOXA ART device tree bindings
+title: MOXA ART
maintainers:
- Jonas Jensen <jonas.jensen@gmail.com>
diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
index 94d50a949be1..c0e3c3a42bea 100644
--- a/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
+++ b/Documentation/devicetree/bindings/arm/msm/qcom,saw2.txt
@@ -10,7 +10,7 @@ system, notifying them when a low power state is entered or exited.
Multiple revisions of the SAW hardware are supported using these Device Nodes.
SAW2 revisions differ in the register offset and configuration data. Also, the
same revision of the SAW in different SoCs may have different configuration
-data due the the differences in hardware capabilities. Hence the SoC name, the
+data due the differences in hardware capabilities. Hence the SoC name, the
version of the SAW hardware in that SoC and the distinction between cpu (big
or Little) or cache, may be needed to uniquely identify the SAW register
configuration and initialization data. The compatible string is used to
diff --git a/Documentation/devicetree/bindings/arm/npcm/npcm.yaml b/Documentation/devicetree/bindings/arm/npcm/npcm.yaml
index 95e51378089c..43409e5721d5 100644
--- a/Documentation/devicetree/bindings/arm/npcm/npcm.yaml
+++ b/Documentation/devicetree/bindings/arm/npcm/npcm.yaml
@@ -8,6 +8,7 @@ title: NPCM Platforms Device Tree Bindings
maintainers:
- Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ - Tomer Maimon <tmaimon77@gmail.com>
properties:
$nodename:
@@ -26,4 +27,10 @@ properties:
- nuvoton,npcm750-evb # NPCM750 evaluation board
- const: nuvoton,npcm750
+ - description: NPCM845 based boards
+ items:
+ - enum:
+ - nuvoton,npcm845-evb # NPCM845 evaluation board
+ - const: nuvoton,npcm845
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
index fcb211add7d3..94e72f25b331 100644
--- a/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
+++ b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml
@@ -8,6 +8,7 @@ title: Global Control Registers block in Nuvoton SoCs
maintainers:
- Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ - Tomer Maimon <tmaimon77@gmail.com>
description:
The Global Control Registers (GCR) are a block of registers in Nuvoton SoCs
@@ -20,6 +21,7 @@ properties:
- enum:
- nuvoton,wpcm450-gcr
- nuvoton,npcm750-gcr
+ - nuvoton,npcm845-gcr
- const: syscon
- const: simple-mfd
diff --git a/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml b/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml
index c9675c4cdc1b..b6f57d79a753 100644
--- a/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml
+++ b/Documentation/devicetree/bindings/arm/nvidia,tegra194-ccplex.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/arm/nvidia,tegra194-ccplex.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: NVIDIA Tegra194 CPU Complex device tree bindings
+title: NVIDIA Tegra194 CPU Complex
maintainers:
- Thierry Reding <thierry.reding@gmail.com>
diff --git a/Documentation/devicetree/bindings/arm/psci.yaml b/Documentation/devicetree/bindings/arm/psci.yaml
index dd83ef278af0..3a2c908ff282 100644
--- a/Documentation/devicetree/bindings/arm/psci.yaml
+++ b/Documentation/devicetree/bindings/arm/psci.yaml
@@ -43,29 +43,24 @@ properties:
- description:
For implementations complying to PSCI 0.2.
- const: arm,psci-0.2
-
- - description:
- For implementations complying to PSCI 0.2.
Function IDs are not required and should be ignored by an OS with
PSCI 0.2 support, but are permitted to be present for compatibility
with existing software when "arm,psci" is later in the compatible
list.
+ minItems: 1
items:
- const: arm,psci-0.2
- const: arm,psci
- description:
For implementations complying to PSCI 1.0.
- const: arm,psci-1.0
-
- - description:
- For implementations complying to PSCI 1.0.
PSCI 1.0 is backward compatible with PSCI 0.2 with minor
specification updates, as defined in the PSCI specification[2].
+ minItems: 1
items:
- const: arm,psci-1.0
- const: arm,psci-0.2
+ - const: arm,psci
method:
description: The method of calling the PSCI firmware.
diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
index 5c06d1bfc046..1b5ac6b02bc5 100644
--- a/Documentation/devicetree/bindings/arm/qcom.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom.yaml
@@ -4,10 +4,10 @@
$id: http://devicetree.org/schemas/arm/qcom.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: QCOM device tree bindings
+title: QCOM
maintainers:
- - Stephen Boyd <sboyd@codeaurora.org>
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
description: |
Some qcom based bootloaders identify the dtb blob based on a set of
@@ -38,18 +38,24 @@ description: |
msm8992
msm8994
msm8996
+ msm8998
+ qcs404
sa8155p
sa8540p
sc7180
sc7280
sc8180x
sc8280xp
+ sda660
sdm630
sdm632
+ sdm636
sdm660
sdm845
sdx55
sdx65
+ sm6125
+ sm6350
sm7225
sm8150
sm8250
@@ -90,6 +96,11 @@ description: |
A dragonboard board v0.1 of subtype 1 with an apq8074 SoC version 2, made in
foundry 2.
+ There are many devices in the list below that run the standard ChromeOS
+ bootloader setup and use the open source depthcharge bootloader to boot the
+ OS. These devices do not use the scheme described above. For details, see:
+ https://docs.kernel.org/arm/google/chromebook-boot-flow.html
+
properties:
$nodename:
const: "/"
@@ -153,28 +164,53 @@ properties:
- const: qcom,msm8974
- items:
- - enum:
- - alcatel,idol347
- - const: qcom,msm8916-mtp/1
- const: qcom,msm8916-mtp
+ - const: qcom,msm8916-mtp/1
- const: qcom,msm8916
- items:
- enum:
- - longcheer,l8150
+ - alcatel,idol347
+ - asus,z00l
+ - huawei,g7
+ - longcheer,l8910
- samsung,a3u-eur
- samsung,a5u-eur
+ - samsung,e5
+ - samsung,e7
+ - samsung,grandmax
+ - samsung,j5
+ - samsung,serranove
+ - wingtech,wt88047
- const: qcom,msm8916
- items:
+ - const: longcheer,l8150
+ - const: qcom,msm8916-v1-qrd/9-v1
+ - const: qcom,msm8916
+
+ - items:
+ - enum:
+ - lg,bullhead
+ - microsoft,talkman
+ - xiaomi,libra
+ - const: qcom,msm8992
+
+ - items:
- enum:
- sony,karin_windy
+ - const: qcom,apq8094
+
+ - items:
+ - enum:
+ - huawei,angler
+ - microsoft,cityman
+ - sony,ivy-row
- sony,karin-row
- sony,satsuki-row
- sony,sumire-row
- sony,suzuran-row
- - qcom,msm8994
- - const: qcom,apq8094
+ - const: qcom,msm8994
- items:
- enum:
@@ -190,11 +226,26 @@ properties:
- sony,kagura-row
- sony,keyaki-row
- xiaomi,gemini
+ - xiaomi,natrium
- xiaomi,scorpio
- const: qcom,msm8996
- items:
- enum:
+ - asus,novago-tp370ql
+ - fxtec,pro1
+ - hp,envy-x2
+ - lenovo,miix-630
+ - oneplus,cheeseburger
+ - oneplus,dumpling
+ - qcom,msm8998-mtp
+ - sony,xperia-lilac
+ - sony,xperia-maple
+ - sony,xperia-poplar
+ - const: qcom,msm8998
+
+ - items:
+ - enum:
- qcom,ipq4019-ap-dk01.1-c1
- qcom,ipq4019-ap-dk04.1-c3
- qcom,ipq4019-ap-dk07.1-c1
@@ -214,19 +265,334 @@ properties:
- qcom,ipq8074-hk10-c2
- const: qcom,ipq8074
- - items:
+ - description: Qualcomm Technologies, Inc. SC7180 IDP
+ items:
- enum:
- qcom,sc7180-idp
- const: qcom,sc7180
- - items:
- - enum:
- - qcom,sc7280-crd
- - qcom,sc7280-idp
- - qcom,sc7280-idp2
- - google,hoglin
- - google,piglin
- - google,senor
+ - description: HP Chromebook x2 11c (rev1 - 2)
+ items:
+ - const: google,coachz-rev1
+ - const: google,coachz-rev2
+ - const: qcom,sc7180
+
+ - description: HP Chromebook x2 11c (newest rev)
+ items:
+ - const: google,coachz
+ - const: qcom,sc7180
+
+ - description: HP Chromebook x2 11c with LTE (rev1 - 2)
+ items:
+ - const: google,coachz-rev1-sku0
+ - const: google,coachz-rev2-sku0
+ - const: qcom,sc7180
+
+ - description: HP Chromebook x2 11c with LTE (newest rev)
+ items:
+ - const: google,coachz-sku0
+ - const: qcom,sc7180
+
+ - description: Lenovo Chromebook Duet 5 13 (rev2)
+ items:
+ - const: google,homestar-rev2
+ - const: google,homestar-rev23
+ - const: qcom,sc7180
+
+ - description: Lenovo Chromebook Duet 5 13 (rev3)
+ items:
+ - const: google,homestar-rev3
+ - const: qcom,sc7180
+
+ - description: Lenovo Chromebook Duet 5 13 (newest rev)
+ items:
+ - const: google,homestar
+ - const: qcom,sc7180
+
+ - description: Google Kingoftown (rev0)
+ items:
+ - const: google,kingoftown-rev0
+ - const: qcom,sc7180
+
+ - description: Google Kingoftown (newest rev)
+ items:
+ - const: google,kingoftown
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 (rev0)
+ items:
+ - const: google,lazor-rev0
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 (rev1 - 2)
+ items:
+ - const: google,lazor-rev1
+ - const: google,lazor-rev2
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 (rev3 - 8)
+ items:
+ - const: google,lazor-rev3
+ - const: google,lazor-rev4
+ - const: google,lazor-rev5
+ - const: google,lazor-rev6
+ - const: google,lazor-rev7
+ - const: google,lazor-rev8
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 (newest rev)
+ items:
+ - const: google,lazor
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 with KB Backlight (rev1 - 2)
+ items:
+ - const: google,lazor-rev1-sku2
+ - const: google,lazor-rev2-sku2
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 with KB Backlight (rev3 - 8)
+ items:
+ - const: google,lazor-rev3-sku2
+ - const: google,lazor-rev4-sku2
+ - const: google,lazor-rev5-sku2
+ - const: google,lazor-rev6-sku2
+ - const: google,lazor-rev7-sku2
+ - const: google,lazor-rev8-sku2
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 with KB Backlight (newest rev)
+ items:
+ - const: google,lazor-sku2
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 with LTE (rev1 - 2)
+ items:
+ - const: google,lazor-rev1-sku0
+ - const: google,lazor-rev2-sku0
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 with LTE (rev3 - 8)
+ items:
+ - const: google,lazor-rev3-sku0
+ - const: google,lazor-rev4-sku0
+ - const: google,lazor-rev5-sku0
+ - const: google,lazor-rev6-sku0
+ - const: google,lazor-rev7-sku0
+ - const: google,lazor-rev8-sku0
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook Spin 513 with LTE (newest rev)
+ items:
+ - const: google,lazor-sku0
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook 511 (rev4 - rev8)
+ items:
+ - const: google,lazor-rev4-sku4
+ - const: google,lazor-rev5-sku4
+ - const: google,lazor-rev6-sku4
+ - const: google,lazor-rev7-sku4
+ - const: google,lazor-rev8-sku4
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook 511 (newest rev)
+ items:
+ - const: google,lazor-sku4
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook 511 without Touchscreen (rev4)
+ items:
+ - const: google,lazor-rev4-sku5
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook 511 without Touchscreen (rev5 - rev8)
+ items:
+ - const: google,lazor-rev5-sku5
+ - const: google,lazor-rev5-sku6
+ - const: google,lazor-rev6-sku6
+ - const: google,lazor-rev7-sku6
+ - const: google,lazor-rev8-sku6
+ - const: qcom,sc7180
+
+ - description: Acer Chromebook 511 without Touchscreen (newest rev)
+ items:
+ - const: google,lazor-sku6
+ - const: qcom,sc7180
+
+ - description: Google Mrbland with AUO panel (rev0)
+ items:
+ - const: google,mrbland-rev0-sku0
+ - const: qcom,sc7180
+
+ - description: Google Mrbland with AUO panel (newest rev)
+ items:
+ - const: google,mrbland-sku1536
+ - const: qcom,sc7180
+
+ - description: Google Mrbland with BOE panel (rev0)
+ items:
+ - const: google,mrbland-rev0-sku16
+ - const: qcom,sc7180
+
+ - description: Google Mrbland with BOE panel (newest rev)
+ items:
+ - const: google,mrbland-sku1024
+ - const: google,mrbland-sku768
+ - const: qcom,sc7180
+
+ - description: Google Pazquel with Parade (newest rev)
+ items:
+ - const: google,pazquel-sku5
+ - const: qcom,sc7180
+
+ - description: Google Pazquel with TI (newest rev)
+ items:
+ - const: google,pazquel-sku1
+ - const: qcom,sc7180
+
+ - description: Google Pazquel with LTE and Parade (newest rev)
+ items:
+ - const: google,pazquel-sku6
+ - const: google,pazquel-sku4
+ - const: qcom,sc7180
+
+ - description: Google Pazquel with LTE and TI (newest rev)
+ items:
+ - const: google,pazquel-sku0
+ - const: google,pazquel-sku2
+ - const: qcom,sc7180
+
+ - description: Sharp Dynabook Chromebook C1 (rev1)
+ items:
+ - const: google,pompom-rev1
+ - const: qcom,sc7180
+
+ - description: Sharp Dynabook Chromebook C1 (rev2)
+ items:
+ - const: google,pompom-rev2
+ - const: qcom,sc7180
+
+ - description: Sharp Dynabook Chromebook C1 (newest rev)
+ items:
+ - const: google,pompom
+ - const: qcom,sc7180
+
+ - description: Sharp Dynabook Chromebook C1 with LTE (rev1)
+ items:
+ - const: google,pompom-rev1-sku0
+ - const: qcom,sc7180
+
+ - description: Sharp Dynabook Chromebook C1 with LTE (rev2)
+ items:
+ - const: google,pompom-rev2-sku0
+ - const: qcom,sc7180
+
+ - description: Sharp Dynabook Chromebook C1 with LTE (newest rev)
+ items:
+ - const: google,pompom-sku0
+ - const: qcom,sc7180
+
+ - description: Google Quackingstick (newest rev)
+ items:
+ - const: google,quackingstick-sku1537
+ - const: qcom,sc7180
+
+ - description: Google Quackingstick with LTE (newest rev)
+ items:
+ - const: google,quackingstick-sku1536
+ - const: qcom,sc7180
+
+ - description: Google Trogdor (newest rev)
+ items:
+ - const: google,trogdor
+ - const: qcom,sc7180
+
+ - description: Google Trogdor with LTE (newest rev)
+ items:
+ - const: google,trogdor-sku0
+ - const: qcom,sc7180
+
+ - description: Lenovo IdeaPad Chromebook Duet 3 with BOE panel (rev0)
+ items:
+ - const: google,wormdingler-rev0-sku16
+ - const: qcom,sc7180
+
+ - description: Lenovo IdeaPad Chromebook Duet 3 with BOE panel (newest rev)
+ items:
+ - const: google,wormdingler-sku1024
+ - const: qcom,sc7180
+
+ - description: Lenovo IdeaPad Chromebook Duet 3 with BOE panel and rt5682s (newest rev)
+ items:
+ - const: google,wormdingler-sku1025
+ - const: qcom,sc7180
+
+ - description: Lenovo IdeaPad Chromebook Duet 3 with INX panel (rev0)
+ items:
+ - const: google,wormdingler-rev0-sku0
+ - const: qcom,sc7180
+
+ - description: Lenovo IdeaPad Chromebook Duet 3 with INX panel (newest rev)
+ items:
+ - const: google,wormdingler-sku0
+ - const: qcom,sc7180
+
+ - description: Lenovo IdeaPad Chromebook Duet 3 with INX panel and rt5682s (newest rev)
+ items:
+ - const: google,wormdingler-sku1
+ - const: qcom,sc7180
+
+ - description: Qualcomm Technologies, Inc. sc7280 CRD platform (rev3 - 4)
+ items:
+ - const: qcom,sc7280-crd
+ - const: google,hoglin-rev3
+ - const: google,hoglin-rev4
+ - const: google,piglin-rev3
+ - const: google,piglin-rev4
+ - const: qcom,sc7280
+
+ - description: Qualcomm Technologies, Inc. sc7280 CRD platform (newest rev)
+ items:
+ - const: google,zoglin
+ - const: google,hoglin
+ - const: qcom,sc7280
+
+ - description: Qualcomm Technologies, Inc. sc7280 IDP SKU1 platform
+ items:
+ - const: qcom,sc7280-idp
+ - const: google,senor
+ - const: qcom,sc7280
+
+ - description: Qualcomm Technologies, Inc. sc7280 IDP SKU2 platform
+ items:
+ - const: qcom,sc7280-idp2
+ - const: google,piglin
+ - const: qcom,sc7280
+
+ - description: Google Evoker (newest rev)
+ items:
+ - const: google,evoker
+ - const: qcom,sc7280
+
+ - description: Google Herobrine (newest rev)
+ items:
+ - const: google,herobrine
+ - const: qcom,sc7280
+
+ - description: Google Villager (rev0)
+ items:
+ - const: google,villager-rev0
+ - const: qcom,sc7280
+
+ - description: Google Villager (newest rev)
+ items:
+ - const: google,villager
+ - const: qcom,sc7280
+
+ - description: Google Villager with LTE (newest rev)
+ items:
+ - const: google,villager-sku512
- const: qcom,sc7280
- items:
@@ -238,16 +604,36 @@ properties:
- items:
- enum:
+ - lenovo,thinkpad-x13s
+ - qcom,sc8280xp-crd
- qcom,sc8280xp-qrd
- const: qcom,sc8280xp
- items:
- enum:
+ - sony,discovery-row
+ - sony,kirin-row
+ - sony,pioneer-row
+ - sony,voyager-row
+ - const: qcom,sdm630
+
+ - items:
+ - enum:
+ - inforce,ifc6560
+ - const: qcom,sda660
+
+ - items:
+ - enum:
- fairphone,fp3
- const: qcom,sdm632
- items:
- enum:
+ - sony,mermaid-row
+ - const: qcom,sdm636
+
+ - items:
+ - enum:
- xiaomi,lavender
- const: qcom,sdm660
@@ -271,6 +657,13 @@ properties:
- items:
- enum:
+ - qcom,qcs404-evb-1000
+ - qcom,qcs404-evb-4000
+ - const: qcom,qcs404-evb
+ - const: qcom,qcs404
+
+ - items:
+ - enum:
- qcom,sa8155p-adp
- const: qcom,sa8155p
@@ -281,30 +674,69 @@ properties:
- items:
- enum:
+ - lenovo,yoga-c630
+ - lg,judyln
+ - lg,judyp
+ - oneplus,enchilada
+ - oneplus,fajita
+ - qcom,sdm845-mtp
+ - shift,axolotl
+ - samsung,w737
+ - sony,akari-row
+ - sony,akatsuki-row
+ - sony,apollo-row
+ - thundercomm,db845c
+ - xiaomi,beryllium
+ - xiaomi,polaris
+ - const: qcom,sdm845
+
+ - items:
+ - enum:
+ - sony,pdx201
+ - const: qcom,sm6125
+
+ - items:
+ - enum:
+ - sony,pdx213
+ - const: qcom,sm6350
+
+ - items:
+ - enum:
- fairphone,fp4
- const: qcom,sm7225
- items:
- enum:
+ - microsoft,surface-duo
+ - qcom,sm8150-hdk
- qcom,sm8150-mtp
+ - sony,bahamut-generic
+ - sony,griffin-generic
- const: qcom,sm8150
- items:
- enum:
- qcom,qrb5165-rb5
+ - qcom,sm8250-hdk
- qcom,sm8250-mtp
+ - sony,pdx203-generic
+ - sony,pdx206-generic
- const: qcom,sm8250
- items:
- enum:
+ - microsoft,surface-duo2
- qcom,sm8350-hdk
- qcom,sm8350-mtp
+ - sony,pdx214-generic
+ - sony,pdx215-generic
- const: qcom,sm8350
- items:
- enum:
- qcom,sm8450-hdk
- qcom,sm8450-qrd
+ - sony,pdx223
- const: qcom,sm8450
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/rda.yaml b/Documentation/devicetree/bindings/arm/rda.yaml
index a5c0444aa2b4..09241ea1d228 100644
--- a/Documentation/devicetree/bindings/arm/rda.yaml
+++ b/Documentation/devicetree/bindings/arm/rda.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/rda.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: RDA Micro platforms device tree bindings
+title: RDA Micro platforms
maintainers:
- Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/realtek.yaml b/Documentation/devicetree/bindings/arm/realtek.yaml
index 9fb0297fe1ce..ddd9a85099e9 100644
--- a/Documentation/devicetree/bindings/arm/realtek.yaml
+++ b/Documentation/devicetree/bindings/arm/realtek.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/realtek.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Realtek platforms device tree bindings
+title: Realtek platforms
maintainers:
- Andreas Färber <afaerber@suse.de>
diff --git a/Documentation/devicetree/bindings/arm/renesas.yaml b/Documentation/devicetree/bindings/arm/renesas.yaml
index ff80152f092f..f51464a08aff 100644
--- a/Documentation/devicetree/bindings/arm/renesas.yaml
+++ b/Documentation/devicetree/bindings/arm/renesas.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/renesas.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Renesas SH-Mobile, R-Mobile, and R-Car Platform Device Tree Bindings
+title: Renesas SH-Mobile, R-Mobile, and R-Car Platform
maintainers:
- Geert Uytterhoeven <geert+renesas@glider.be>
@@ -264,6 +264,7 @@ properties:
- renesas,r8a779m4
- renesas,r8a779m5
- renesas,r8a779m8
+ - renesas,r8a779mb
- enum:
- renesas,r8a7795
- renesas,r8a77961
@@ -291,6 +292,13 @@ properties:
- renesas,v3hsk # V3HSK (Y-ASK-RCAR-V3H-WS10)
- const: renesas,r8a77980
+ - description: R-Car V3H2 (R8A77980A)
+ items:
+ - enum:
+ - renesas,condor-i # Condor-I (RTP0RC77980SEBS012SA01)
+ - const: renesas,r8a77980a
+ - const: renesas,r8a77980
+
- description: R-Car E3 (R8A77990)
items:
- enum:
@@ -409,6 +417,14 @@ properties:
- const: renesas,r8a779m8
- const: renesas,r8a7795
+ - description: R-Car H3Ne-1.7G (R8A779MB)
+ items:
+ - enum:
+ - renesas,h3ulcb # H3ULCB (R-Car Starter Kit Premier)
+ - renesas,salvator-xs # Salvator-XS (Salvator-X 2nd version)
+ - const: renesas,r8a779mb
+ - const: renesas,r8a7795
+
- description: RZ/N1D (R9A06G032)
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
index cf9eb1e8326a..c6c69a4e3777 100644
--- a/Documentation/devicetree/bindings/arm/rockchip.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/rockchip.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip platforms device tree bindings
+title: Rockchip platforms
maintainers:
- Heiko Stuebner <heiko@sntech.de>
@@ -30,6 +30,16 @@ properties:
- const: amarula,vyasa-rk3288
- const: rockchip,rk3288
+ - description: Anbernic RG353P
+ items:
+ - const: anbernic,rg353p
+ - const: rockchip,rk3566
+
+ - description: Anbernic RG503
+ items:
+ - const: anbernic,rg503
+ - const: rockchip,rk3566
+
- description: Asus Tinker board
items:
- const: asus,rk3288-tinker
@@ -151,6 +161,7 @@ properties:
- friendlyarm,nanopi-m4b
- friendlyarm,nanopi-neo4
- friendlyarm,nanopi-r4s
+ - friendlyarm,nanopi-r4s-enterprise
- const: rockchip,rk3399
- description: GeekBuying GeekBox
@@ -363,30 +374,55 @@ properties:
- const: google,gru
- const: rockchip,rk3399
- - description: Google Scarlet - Innolux display (Acer Chromebook Tab 10)
+ - description: |
+ Google Scarlet - Innolux display (Acer Chromebook Tab 10 and more)
items:
+ - const: google,scarlet-rev15-sku2
+ - const: google,scarlet-rev15-sku4
- const: google,scarlet-rev15-sku6
- const: google,scarlet-rev15
+ - const: google,scarlet-rev14-sku2
+ - const: google,scarlet-rev14-sku4
- const: google,scarlet-rev14-sku6
- const: google,scarlet-rev14
+ - const: google,scarlet-rev13-sku2
+ - const: google,scarlet-rev13-sku4
- const: google,scarlet-rev13-sku6
- const: google,scarlet-rev13
+ - const: google,scarlet-rev12-sku2
+ - const: google,scarlet-rev12-sku4
- const: google,scarlet-rev12-sku6
- const: google,scarlet-rev12
+ - const: google,scarlet-rev11-sku2
+ - const: google,scarlet-rev11-sku4
- const: google,scarlet-rev11-sku6
- const: google,scarlet-rev11
+ - const: google,scarlet-rev10-sku2
+ - const: google,scarlet-rev10-sku4
- const: google,scarlet-rev10-sku6
- const: google,scarlet-rev10
+ - const: google,scarlet-rev9-sku2
+ - const: google,scarlet-rev9-sku4
- const: google,scarlet-rev9-sku6
- const: google,scarlet-rev9
+ - const: google,scarlet-rev8-sku2
+ - const: google,scarlet-rev8-sku4
- const: google,scarlet-rev8-sku6
- const: google,scarlet-rev8
+ - const: google,scarlet-rev7-sku2
+ - const: google,scarlet-rev7-sku4
- const: google,scarlet-rev7-sku6
- const: google,scarlet-rev7
+ - const: google,scarlet-rev6-sku2
+ - const: google,scarlet-rev6-sku4
- const: google,scarlet-rev6-sku6
- const: google,scarlet-rev6
+ - const: google,scarlet-rev5-sku2
+ - const: google,scarlet-rev5-sku4
- const: google,scarlet-rev5-sku6
- const: google,scarlet-rev5
+ - const: google,scarlet-rev4-sku2
+ - const: google,scarlet-rev4-sku4
- const: google,scarlet-rev4-sku6
- const: google,scarlet-rev4
- const: google,scarlet
@@ -470,6 +506,11 @@ properties:
- const: netxeon,r89
- const: rockchip,rk3288
+ - description: OPEN AI LAB EAIDK-610
+ items:
+ - const: openailab,eaidk-610
+ - const: rockchip,rk3399
+
- description: Orange Pi RK3399 board
items:
- const: rockchip,rk3399-orangepi
@@ -494,6 +535,11 @@ properties:
- const: pine64,pinenote
- const: rockchip,rk3566
+ - description: Pine64 PinePhonePro
+ items:
+ - const: pine64,pinephone-pro
+ - const: rockchip,rk3399
+
- description: Pine64 Rock64
items:
- const: pine64,rock64
@@ -537,6 +583,11 @@ properties:
- const: radxa,rockpi4
- const: rockchip,rk3399
+ - description: Radxa ROCK 4C+
+ items:
+ - const: radxa,rock-4c-plus
+ - const: rockchip,rk3399
+
- description: Radxa ROCK Pi E
items:
- const: radxa,rockpi-e
@@ -554,6 +605,11 @@ properties:
- const: vamrs,rk3399pro-vmarc-som
- const: rockchip,rk3399pro
+ - description: Radxa ROCK Pi S
+ items:
+ - const: radxa,rockpis
+ - const: rockchip,rk3308
+
- description: Radxa Rock2 Square
items:
- const: radxa,rock2-square
diff --git a/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml b/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml
index 5ece38065e54..8c73bc7f4009 100644
--- a/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/rockchip/pmu.yaml
@@ -21,10 +21,12 @@ select:
enum:
- rockchip,px30-pmu
- rockchip,rk3066-pmu
+ - rockchip,rk3128-pmu
- rockchip,rk3288-pmu
- rockchip,rk3368-pmu
- rockchip,rk3399-pmu
- rockchip,rk3568-pmu
+ - rockchip,rk3588-pmu
required:
- compatible
@@ -35,10 +37,12 @@ properties:
- enum:
- rockchip,px30-pmu
- rockchip,rk3066-pmu
+ - rockchip,rk3128-pmu
- rockchip,rk3288-pmu
- rockchip,rk3368-pmu
- rockchip,rk3399-pmu
- rockchip,rk3568-pmu
+ - rockchip,rk3588-pmu
- const: syscon
- const: simple-mfd
diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-soc.yaml b/Documentation/devicetree/bindings/arm/samsung/samsung-soc.yaml
new file mode 100644
index 000000000000..653f85997643
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-soc.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/samsung/samsung-soc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S3C, S5P and Exynos SoC compatibles naming convention
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ Guidelines for new compatibles for SoC blocks/components.
+ When adding new compatibles in new bindings, use the format::
+ samsung,SoC-IP
+
+ For example::
+ samsung,exynos5433-cmu-isp
+
+select:
+ properties:
+ compatible:
+ pattern: "^samsung,.*(s3c|s5pv|exynos)[0-9a-z]+.*$"
+ required:
+ - compatible
+
+properties:
+ compatible:
+ oneOf:
+ - description: Preferred naming style for compatibles of SoC components
+ pattern: "^samsung,(s3c|s5pv|exynos|exynosautov)[0-9]+-.*$"
+
+ # Legacy compatibles with wild-cards - list cannot grow with new bindings:
+ - enum:
+ - samsung,exynos4x12-pinctrl
+ - samsung,exynos4x12-usb2-phy
+ - samsung,s3c64xx-pinctrl
+ - samsung,s3c64xx-wakeup-eint
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml b/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
index 7ca5375f278f..6096c082d56d 100644
--- a/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
+++ b/Documentation/devicetree/bindings/arm/socionext/socionext,uniphier-system-cache.yaml
@@ -22,7 +22,6 @@ properties:
description: |
should contain 3 regions: control register, revision register,
operation register, in this order.
- minItems: 3
maxItems: 3
interrupts:
diff --git a/Documentation/devicetree/bindings/arm/spear.yaml b/Documentation/devicetree/bindings/arm/spear.yaml
index 605ad3f882ef..a465c9eca76e 100644
--- a/Documentation/devicetree/bindings/arm/spear.yaml
+++ b/Documentation/devicetree/bindings/arm/spear.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/spear.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ST SPEAr Platforms Device Tree Bindings
+title: ST SPEAr Platforms
maintainers:
- Viresh Kumar <vireshk@kernel.org>
diff --git a/Documentation/devicetree/bindings/arm/sti.yaml b/Documentation/devicetree/bindings/arm/sti.yaml
index a41cd8764885..3ca054c64377 100644
--- a/Documentation/devicetree/bindings/arm/sti.yaml
+++ b/Documentation/devicetree/bindings/arm/sti.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/sti.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ST STi Platforms Device Tree Bindings
+title: ST STi Platforms
maintainers:
- Patrice Chotard <patrice.chotard@foss.st.com>
diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
index 8b31565fee59..4c605bccc474 100644
--- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
+++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
@@ -59,12 +59,18 @@ properties:
- prt,prtt1s # Protonic PRTT1S
- const: st,stm32mp151
- - description: DH STM32MP153 SoM based Boards
+ - description: DH STM32MP153 DHCOM SoM based Boards
items:
- const: dh,stm32mp153c-dhcom-drc02
- const: dh,stm32mp153c-dhcom-som
- const: st,stm32mp153
+ - description: DH STM32MP153 DHCOR SoM based Boards
+ items:
+ - const: dh,stm32mp153c-dhcor-drc-compact
+ - const: dh,stm32mp153c-dhcor-som
+ - const: st,stm32mp153
+
- items:
- enum:
- shiratech,stm32mp157a-iot-box # IoT Box
diff --git a/Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml b/Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
new file mode 100644
index 000000000000..def7d0cfeb31
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/sunplus,sp7021.yaml
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/sunplus,sp7021.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 Boards
+
+maintainers:
+ - qinjian <qinjian@cqplus1.com>
+
+description: |
+ ARM platforms using Sunplus SP7021, an ARM Cortex A7 (4-cores) based SoC.
+ Wiki: https://sunplus-tibbo.atlassian.net/wiki/spaces/doc/overview
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ items:
+ - enum:
+ - sunplus,sp7021-achip
+ - sunplus,sp7021-demo-v3
+ - const: sunplus,sp7021
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml b/Documentation/devicetree/bindings/arm/sunxi.yaml
index 95278a6a9a8e..3ad1cd50e3fe 100644
--- a/Documentation/devicetree/bindings/arm/sunxi.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/sunxi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner platforms device tree bindings
+title: Allwinner platforms
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -863,6 +863,11 @@ properties:
- const: yones-toptech,bs1078-v2
- const: allwinner,sun6i-a31s
+ - description: X96 Mate TV box
+ items:
+ - const: hechuang,x96-mate
+ - const: allwinner,sun50i-h616
+
- description: Xunlong OrangePi
items:
- const: xunlong,orangepi
@@ -963,4 +968,9 @@ properties:
- const: xunlong,orangepi-zero-plus2-h3
- const: allwinner,sun8i-h3
+ - description: Xunlong OrangePi Zero 2
+ items:
+ - const: xunlong,orangepi-zero2
+ - const: allwinner,sun50i-h616
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
index 8eee312c2e6f..99566688d033 100644
--- a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
+++ b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
@@ -29,10 +29,20 @@ properties:
compatible:
enum:
- allwinner,sun5i-a13-mbus
+ - allwinner,sun8i-a33-mbus
+ - allwinner,sun8i-a50-mbus
+ - allwinner,sun8i-a83t-mbus
- allwinner,sun8i-h3-mbus
- allwinner,sun8i-r40-mbus
+ - allwinner,sun8i-v3s-mbus
+ - allwinner,sun8i-v536-mbus
+ - allwinner,sun20i-d1-mbus
- allwinner,sun50i-a64-mbus
+ - allwinner,sun50i-a100-mbus
- allwinner,sun50i-h5-mbus
+ - allwinner,sun50i-h6-mbus
+ - allwinner,sun50i-h616-mbus
+ - allwinner,sun50i-r329-mbus
reg:
minItems: 1
@@ -81,13 +91,13 @@ required:
- dma-ranges
if:
- properties:
- compatible:
- contains:
- enum:
- - allwinner,sun8i-h3-mbus
- - allwinner,sun50i-a64-mbus
- - allwinner,sun50i-h5-mbus
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - allwinner,sun5i-a13-mbus
+ - allwinner,sun8i-r40-mbus
then:
properties:
diff --git a/Documentation/devicetree/bindings/arm/tegra.yaml b/Documentation/devicetree/bindings/arm/tegra.yaml
index 49841ca272ee..1f62253f9410 100644
--- a/Documentation/devicetree/bindings/arm/tegra.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/tegra.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: NVIDIA Tegra device tree bindings
+title: NVIDIA Tegra
maintainers:
- Thierry Reding <thierry.reding@gmail.com>
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml
index 8c6543b5c0dc..711bb4d08c60 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra-ccplex-cluster.yaml
@@ -40,7 +40,6 @@ required:
- compatible
- reg
- nvidia,bpmp
- - status
examples:
- |
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-axi2apb.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-axi2apb.yaml
new file mode 100644
index 000000000000..788a13f8aa93
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-axi2apb.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/tegra/nvidia,tegra194-axi2apb.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: NVIDIA Tegra194 AXI2APB bridge
+
+maintainers:
+ - Sumit Gupta <sumitg@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^axi2apb@([0-9a-f]+)$"
+
+ compatible:
+ enum:
+ - nvidia,tegra194-axi2apb
+
+ reg:
+ maxItems: 6
+ description: Physical base address and length of registers for all bridges
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ axi2apb: axi2apb@2390000 {
+ compatible = "nvidia,tegra194-axi2apb";
+ reg = <0x02390000 0x1000>,
+ <0x023a0000 0x1000>,
+ <0x023b0000 0x1000>,
+ <0x023c0000 0x1000>,
+ <0x023d0000 0x1000>,
+ <0x023e0000 0x1000>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-cbb.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-cbb.yaml
new file mode 100644
index 000000000000..debb2b0c8013
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra194-cbb.yaml
@@ -0,0 +1,97 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/tegra/nvidia,tegra194-cbb.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: NVIDIA Tegra194 CBB 1.0 bindings
+
+maintainers:
+ - Sumit Gupta <sumitg@nvidia.com>
+
+description: |+
+ The Control Backbone (CBB) is comprised of the physical path from an
+ initiator to a target's register configuration space. CBB 1.0 has
+ multiple hierarchical sub-NOCs (Network-on-Chip) and connects various
+ initiators and targets using different bridges like AXIP2P, AXI2APB.
+
+ This driver handles errors due to illegal register accesses reported
+ by the NOCs inside the CBB. NOCs reporting errors are cluster NOCs
+ "AON-NOC, SCE-NOC, RCE-NOC, BPMP-NOC, CV-NOC" and "CBB Central NOC"
+ which is the main NOC.
+
+ By default, the access issuing initiator is informed about the error
+ using SError or Data Abort exception unless the ERD (Error Response
+ Disable) is enabled/set for that initiator. If the ERD is enabled, then
+ SError or Data Abort is masked and the error is reported with interrupt.
+
+ - For CCPLEX (CPU Complex) initiator, the driver sets ERD bit. So, the
+ errors due to illegal accesses from CCPLEX are reported by interrupts.
+ If ERD is not set, then error is reported by SError.
+ - For other initiators, the ERD is disabled. So, the access issuing
+ initiator is informed about the illegal access by Data Abort exception.
+ In addition, an interrupt is also generated to CCPLEX. These initiators
+ include all engines using Cortex-R5 (which is ARMv7 CPU cluster) and
+ engines like TSEC (Security co-processor), NVDEC (NVIDIA Video Decoder
+ engine) etc which can initiate transactions.
+
+ The driver prints relevant debug information like Error Code, Error
+ Description, Master, Address, AXI ID, Cache, Protection, Security Group
+ etc on receiving error notification.
+
+properties:
+ $nodename:
+ pattern: "^[a-z]+-noc@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra194-cbb-noc
+ - nvidia,tegra194-aon-noc
+ - nvidia,tegra194-bpmp-noc
+ - nvidia,tegra194-rce-noc
+ - nvidia,tegra194-sce-noc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description:
+ CCPLEX receives secure or nonsecure interrupt depending on error type.
+ A secure interrupt is received for SEC(firewall) & SLV errors and a
+ non-secure interrupt is received for TMO & DEC errors.
+ items:
+ - description: non-secure interrupt
+ - description: secure interrupt
+
+ nvidia,axi2apb:
+ $ref: '/schemas/types.yaml#/definitions/phandle'
+ description:
+ Specifies the node having all axi2apb bridges which need to be checked
+ for any error logged in their status register.
+
+ nvidia,apbmisc:
+ $ref: '/schemas/types.yaml#/definitions/phandle'
+ description:
+ Specifies the apbmisc node which need to be used for reading the ERD
+ register.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - nvidia,apbmisc
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ cbb-noc@2300000 {
+ compatible = "nvidia,tegra194-cbb-noc";
+ reg = <0x02300000 0x1000>;
+ interrupts = <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
+ nvidia,axi2apb = <&axi2apb>;
+ nvidia,apbmisc = <&apbmisc>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml
index 564ae6aaccf7..7fd8d47b1be4 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.yaml
@@ -208,7 +208,7 @@ properties:
"^[a-z0-9]+$":
type: object
- patternProperties:
+ properties:
clocks:
minItems: 1
maxItems: 8
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml
new file mode 100644
index 000000000000..7b1fe50ffbe0
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/tegra/nvidia,tegra234-cbb.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: NVIDIA Tegra CBB 2.0 bindings
+
+maintainers:
+ - Sumit Gupta <sumitg@nvidia.com>
+
+description: |+
+ The Control Backbone (CBB) is comprised of the physical path from an
+ initiator to a target's register configuration space. CBB 2.0 consists
+ of multiple sub-blocks connected to each other to create a topology.
+ The Tegra234 SoC has different fabrics based on CBB 2.0 architecture
+ which include cluster fabrics BPMP, AON, PSC, SCE, RCE, DCE, FSI and
+ "CBB central fabric".
+
+ In CBB 2.0, each initiator which can issue transactions connects to a
+ Root Master Node (MN) before it connects to any other element of the
+ fabric. Each Root MN contains a Error Monitor (EM) which detects and
+ logs error. Interrupts from various EM blocks are collated by Error
+ Notifier (EN) which is per fabric and presents a single interrupt from
+ fabric to the SoC interrupt controller.
+
+ The driver handles errors from CBB due to illegal register accesses
+ and prints debug information about failed transaction on receiving
+ the interrupt from EN. Debug information includes Error Code, Error
+ Description, MasterID, Fabric, SlaveID, Address, Cache, Protection,
+ Security Group etc on receiving error notification.
+
+ If the Error Response Disable (ERD) is set/enabled for an initiator,
+ then SError or Data abort exception error response is masked and an
+ interrupt is used for reporting errors due to illegal accesses from
+ that initiator. The value returned on read failures is '0xFFFFFFFF'
+ for compatibility with PCIE.
+
+properties:
+ $nodename:
+ pattern: "^[a-z]+-fabric@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra234-aon-fabric
+ - nvidia,tegra234-bpmp-fabric
+ - nvidia,tegra234-cbb-fabric
+ - nvidia,tegra234-dce-fabric
+ - nvidia,tegra234-rce-fabric
+ - nvidia,tegra234-sce-fabric
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: secure interrupt from error notifier
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ cbb-fabric@1300000 {
+ compatible = "nvidia,tegra234-cbb-fabric";
+ reg = <0x13a00000 0x400000>;
+ interrupts = <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/tesla.yaml b/Documentation/devicetree/bindings/arm/tesla.yaml
index 09856da657dc..d670a0d56222 100644
--- a/Documentation/devicetree/bindings/arm/tesla.yaml
+++ b/Documentation/devicetree/bindings/arm/tesla.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/tesla.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tesla Full Self Driving(FSD) platforms device tree bindings
+title: Tesla Full Self Driving(FSD) platforms
maintainers:
- Alim Akhtar <alim.akhtar@samsung.com>
diff --git a/Documentation/devicetree/bindings/arm/ti/k3.yaml b/Documentation/devicetree/bindings/arm/ti/k3.yaml
index 61c6ab4f52e2..28b8232e1c5b 100644
--- a/Documentation/devicetree/bindings/arm/ti/k3.yaml
+++ b/Documentation/devicetree/bindings/arm/ti/k3.yaml
@@ -19,32 +19,11 @@ properties:
compatible:
oneOf:
- - description: K3 AM654 SoC
+ - description: K3 AM62A7 SoC
items:
- enum:
- - ti,am654-evm
- - siemens,iot2050-basic
- - siemens,iot2050-basic-pg2
- - siemens,iot2050-advanced
- - siemens,iot2050-advanced-pg2
- - const: ti,am654
-
- - description: K3 J721E SoC
- oneOf:
- - const: ti,j721e
- - items:
- - enum:
- - ti,j721e-evm
- - ti,j721e-sk
- - const: ti,j721e
-
- - description: K3 J7200 SoC
- oneOf:
- - const: ti,j7200
- - items:
- - enum:
- - ti,j7200-evm
- - const: ti,j7200
+ - ti,am62a7-sk
+ - const: ti,am62a7
- description: K3 AM625 SoC
items:
@@ -59,6 +38,33 @@ properties:
- ti,am642-sk
- const: ti,am642
+ - description: K3 AM654 SoC
+ items:
+ - enum:
+ - siemens,iot2050-advanced
+ - siemens,iot2050-advanced-pg2
+ - siemens,iot2050-basic
+ - siemens,iot2050-basic-pg2
+ - ti,am654-evm
+ - const: ti,am654
+
+ - description: K3 J7200 SoC
+ oneOf:
+ - const: ti,j7200
+ - items:
+ - enum:
+ - ti,j7200-evm
+ - const: ti,j7200
+
+ - description: K3 J721E SoC
+ oneOf:
+ - const: ti,j721e
+ - items:
+ - enum:
+ - ti,j721e-evm
+ - ti,j721e-sk
+ - const: ti,j721e
+
- description: K3 J721s2 SoC
items:
- enum:
diff --git a/Documentation/devicetree/bindings/arm/toshiba.yaml b/Documentation/devicetree/bindings/arm/toshiba.yaml
index 9c1cacbdc916..716ba4a3cab4 100644
--- a/Documentation/devicetree/bindings/arm/toshiba.yaml
+++ b/Documentation/devicetree/bindings/arm/toshiba.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/toshiba.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Toshiba Visconti Platform Device Tree Bindings
+title: Toshiba Visconti Platform
maintainers:
- Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
diff --git a/Documentation/devicetree/bindings/arm/ux500.yaml b/Documentation/devicetree/bindings/arm/ux500.yaml
index 17accb31bca0..b42d20fa4359 100644
--- a/Documentation/devicetree/bindings/arm/ux500.yaml
+++ b/Documentation/devicetree/bindings/arm/ux500.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/ux500.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Ux500 platforms device tree bindings
+title: Ux500 platforms
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
diff --git a/Documentation/devicetree/bindings/arm/versatile-sysreg.txt b/Documentation/devicetree/bindings/arm/versatile-sysreg.txt
deleted file mode 100644
index a4f15262d717..000000000000
--- a/Documentation/devicetree/bindings/arm/versatile-sysreg.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-ARM Versatile system registers
---------------------------------------
-
-This is a system control registers block, providing multiple low level
-platform functions like board detection and identification, software
-interrupt generation, MMC and NOR Flash control etc.
-
-Required node properties:
-- compatible value : = "arm,versatile-sysreg", "syscon"
-- reg : physical base address and the size of the registers window
diff --git a/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml b/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml
index b5e26e41f88c..f04db802a732 100644
--- a/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml
+++ b/Documentation/devicetree/bindings/arm/vexpress-sysreg.yaml
@@ -29,6 +29,13 @@ properties:
ranges: true
+ gpio-controller:
+ deprecated: true
+
+ "#gpio-cells":
+ deprecated: true
+ const: 2
+
additionalProperties: false
patternProperties:
@@ -67,8 +74,7 @@ patternProperties:
required:
- compatible
- - "#address-cells"
- - "#size-cells"
+ - reg
examples:
- |
diff --git a/Documentation/devicetree/bindings/arm/vt8500.yaml b/Documentation/devicetree/bindings/arm/vt8500.yaml
index 7b762bfc11e7..5d5ad5a60451 100644
--- a/Documentation/devicetree/bindings/arm/vt8500.yaml
+++ b/Documentation/devicetree/bindings/arm/vt8500.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/vt8500.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: VIA/Wondermedia VT8500 Platforms Device Tree Bindings
+title: VIA/Wondermedia VT8500 Platforms
maintainers:
- Tony Prisk <linux@prisktech.co.nz>
diff --git a/Documentation/devicetree/bindings/arm/xilinx.yaml b/Documentation/devicetree/bindings/arm/xilinx.yaml
index 4dc0e0195974..969cfe6dc434 100644
--- a/Documentation/devicetree/bindings/arm/xilinx.yaml
+++ b/Documentation/devicetree/bindings/arm/xilinx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/arm/xilinx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx Zynq Platforms Device Tree Bindings
+title: Xilinx Zynq Platforms
maintainers:
- Michal Simek <michal.simek@xilinx.com>
diff --git a/Documentation/devicetree/bindings/ata/ahci-ceva.txt b/Documentation/devicetree/bindings/ata/ahci-ceva.txt
deleted file mode 100644
index bfb6da0281ec..000000000000
--- a/Documentation/devicetree/bindings/ata/ahci-ceva.txt
+++ /dev/null
@@ -1,63 +0,0 @@
-Binding for CEVA AHCI SATA Controller
-
-Required properties:
- - reg: Physical base address and size of the controller's register area.
- - compatible: Compatibility string. Must be 'ceva,ahci-1v84'.
- - clocks: Input clock specifier. Refer to common clock bindings.
- - interrupts: Interrupt specifier. Refer to interrupt binding.
- - ceva,p0-cominit-params: OOB timing value for COMINIT parameter for port 0.
- - ceva,p1-cominit-params: OOB timing value for COMINIT parameter for port 1.
- The fields for the above parameter must be as shown below:
- ceva,pN-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
- CINMP : COMINIT Negate Minimum Period.
- CIBGN : COMINIT Burst Gap Nominal.
- CIBGMX: COMINIT Burst Gap Maximum.
- CIBGMN: COMINIT Burst Gap Minimum.
- - ceva,p0-comwake-params: OOB timing value for COMWAKE parameter for port 0.
- - ceva,p1-comwake-params: OOB timing value for COMWAKE parameter for port 1.
- The fields for the above parameter must be as shown below:
- ceva,pN-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
- CWBGMN: COMWAKE Burst Gap Minimum.
- CWBGMX: COMWAKE Burst Gap Maximum.
- CWBGN: COMWAKE Burst Gap Nominal.
- CWNMP: COMWAKE Negate Minimum Period.
- - ceva,p0-burst-params: Burst timing value for COM parameter for port 0.
- - ceva,p1-burst-params: Burst timing value for COM parameter for port 1.
- The fields for the above parameter must be as shown below:
- ceva,pN-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
- BMX: COM Burst Maximum.
- BNM: COM Burst Nominal.
- SFD: Signal Failure Detection value.
- PTST: Partial to Slumber timer value.
- - ceva,p0-retry-params: Retry interval timing value for port 0.
- - ceva,p1-retry-params: Retry interval timing value for port 1.
- The fields for the above parameter must be as shown below:
- ceva,pN-retry-params = /bits/ 16 <RIT RCT>;
- RIT: Retry Interval Timer.
- RCT: Rate Change Timer.
-
-Optional properties:
- - ceva,broken-gen2: limit to gen1 speed instead of gen2.
- - phys: phandle for the PHY device
- - resets: phandle to the reset controller for the SATA IP
-
-Examples:
- ahci@fd0c0000 {
- compatible = "ceva,ahci-1v84";
- reg = <0xfd0c0000 0x200>;
- interrupt-parent = <&gic>;
- interrupts = <0 133 4>;
- clocks = <&clkc SATA_CLK_ID>;
- ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
- ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
- ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
- ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>;
-
- ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
- ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
- ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
- ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>;
- ceva,broken-gen2;
- phys = <&psgtr 1 PHY_TYPE_SATA 1 1>;
- resets = <&zynqmp_reset ZYNQMP_RESET_SATA>;
- };
diff --git a/Documentation/devicetree/bindings/ata/ahci-common.yaml b/Documentation/devicetree/bindings/ata/ahci-common.yaml
new file mode 100644
index 000000000000..94d72aeaad0f
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/ahci-common.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/ahci-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common Properties for Serial ATA AHCI controllers
+
+maintainers:
+ - Hans de Goede <hdegoede@redhat.com>
+ - Damien Le Moal <damien.lemoal@opensource.wdc.com>
+
+description:
+ This document defines device tree properties for a common AHCI SATA
+ controller implementation. It's hardware interface is supposed to
+ conform to the technical standard defined by Intel (see Serial ATA
+ Advanced Host Controller Interface specification for details). The
+ document doesn't constitute a DT-node binding by itself but merely
+ defines a set of common properties for the AHCI-compatible devices.
+
+select: false
+
+allOf:
+ - $ref: sata-common.yaml#
+
+properties:
+ reg:
+ description:
+ Generic AHCI registers space conforming to the Serial ATA AHCI
+ specification.
+
+ reg-names:
+ description: CSR space IDs
+ contains:
+ const: ahci
+
+ interrupts:
+ description:
+ Generic AHCI state change interrupt. Can be implemented either as a
+ single line attached to the controller or as a set of the signals
+ indicating the particular port events.
+ minItems: 1
+ maxItems: 32
+
+ ahci-supply:
+ description: Power regulator for AHCI controller
+
+ target-supply:
+ description: Power regulator for SATA target device
+
+ phy-supply:
+ description: Power regulator for SATA PHY
+
+ phys:
+ description: Reference to the SATA PHY node
+ maxItems: 1
+
+ phy-names:
+ const: sata-phy
+
+ hba-cap:
+ $ref: '/schemas/types.yaml#/definitions/uint32'
+ description:
+ Bitfield of the HBA generic platform capabilities like Staggered
+ Spin-up or Mechanical Presence Switch support. It can be used to
+ appropriately initialize the HWinit fields of the HBA CAP register
+ in case if the system firmware hasn't done it.
+
+ ports-implemented:
+ $ref: '/schemas/types.yaml#/definitions/uint32'
+ description:
+ Mask that indicates which ports the HBA supports. Useful if PI is not
+ programmed by the BIOS, which is true for some embedded SoC's.
+
+patternProperties:
+ "^sata-port@[0-9a-f]+$":
+ $ref: '#/$defs/ahci-port'
+ description:
+ It is optionally possible to describe the ports as sub-nodes so
+ to enable each port independently when dealing with multiple PHYs.
+
+required:
+ - reg
+ - interrupts
+
+additionalProperties: true
+
+$defs:
+ ahci-port:
+ $ref: /schemas/ata/sata-common.yaml#/$defs/sata-port
+
+ properties:
+ reg:
+ description:
+ AHCI SATA port identifier. By design AHCI controller can't have
+ more than 32 ports due to the CAP.NP fields and PI register size
+ constraints.
+ minimum: 0
+ maximum: 31
+
+ phys:
+ description: Individual AHCI SATA port PHY
+ maxItems: 1
+
+ phy-names:
+ description: AHCI SATA port PHY ID
+ const: sata-phy
+
+ target-supply:
+ description: Power regulator for SATA port target device
+
+ hba-port-cap:
+ $ref: '/schemas/types.yaml#/definitions/uint32'
+ description:
+ Bitfield of the HBA port-specific platform capabilities like Hot
+ plugging, eSATA, FIS-based Switching, etc (see AHCI specification
+ for details). It can be used to initialize the HWinit fields of
+ the PxCMD register in case if the system firmware hasn't done it.
+
+ required:
+ - reg
+
+...
diff --git a/Documentation/devicetree/bindings/ata/ahci-platform.yaml b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
index c146ab8e14e5..7dc2a2e8f598 100644
--- a/Documentation/devicetree/bindings/ata/ahci-platform.yaml
+++ b/Documentation/devicetree/bindings/ata/ahci-platform.yaml
@@ -30,14 +30,11 @@ select:
- marvell,armada-3700-ahci
- marvell,armada-8k-ahci
- marvell,berlin2q-ahci
- - snps,dwc-ahci
- - snps,spear-ahci
required:
- compatible
allOf:
- - $ref: "sata-common.yaml#"
-
+ - $ref: "ahci-common.yaml#"
properties:
compatible:
@@ -49,17 +46,11 @@ properties:
- marvell,berlin2-ahci
- marvell,berlin2q-ahci
- const: generic-ahci
- - items:
- - enum:
- - rockchip,rk3568-dwc-ahci
- - const: snps,dwc-ahci
- enum:
- cavium,octeon-7130-ahci
- hisilicon,hisi-ahci
- ibm,476gtr-ahci
- marvell,armada-3700-ahci
- - snps,dwc-ahci
- - snps,spear-ahci
reg:
minItems: 1
@@ -69,92 +60,37 @@ properties:
maxItems: 1
clocks:
- description:
- Clock IDs array as required by the controller.
minItems: 1
maxItems: 3
clock-names:
- description:
- Names of clocks corresponding to IDs in the clock property.
minItems: 1
maxItems: 3
interrupts:
maxItems: 1
- ahci-supply:
- description:
- regulator for AHCI controller
-
- dma-coherent: true
-
- phy-supply:
- description:
- regulator for PHY power
-
- phys:
- description:
- List of all PHYs on this controller
- maxItems: 1
-
- phy-names:
- description:
- Name specifier for the PHYs
- maxItems: 1
-
- ports-implemented:
- $ref: '/schemas/types.yaml#/definitions/uint32'
- description: |
- Mask that indicates which ports that the HBA supports
- are available for software to use. Useful if PORTS_IMPL
- is not programmed by the BIOS, which is true with
- some embedded SoCs.
- maximum: 0x1f
-
power-domains:
maxItems: 1
resets:
maxItems: 1
- target-supply:
- description:
- regulator for SATA target power
-
-required:
- - compatible
- - reg
- - interrupts
-
patternProperties:
"^sata-port@[0-9a-f]+$":
- type: object
- additionalProperties: false
- description:
- Subnode with configuration of the Ports.
-
- properties:
- reg:
- maxItems: 1
-
- phys:
- maxItems: 1
-
- phy-names:
- maxItems: 1
-
- target-supply:
- description:
- regulator for SATA target power
-
- required:
- - reg
+ $ref: /schemas/ata/ahci-common.yaml#/$defs/ahci-port
anyOf:
- required: [ phys ]
- required: [ target-supply ]
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
unevaluatedProperties: false
examples:
@@ -167,6 +103,8 @@ examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/berlin2q.h>
+ #include <dt-bindings/ata/ahci.h>
+
sata@f7e90000 {
compatible = "marvell,berlin2q-ahci", "generic-ahci";
reg = <0xf7e90000 0x1000>;
@@ -175,15 +113,23 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
+ hba-cap = <HBA_SMPS>;
+
sata0: sata-port@0 {
reg = <0>;
+
phys = <&sata_phy 0>;
target-supply = <&reg_sata0>;
+
+ hba-port-cap = <(HBA_PORT_FBSCP | HBA_PORT_ESP)>;
};
sata1: sata-port@1 {
reg = <1>;
+
phys = <&sata_phy 1>;
target-supply = <&reg_sata1>;
+
+ hba-port-cap = <(HBA_PORT_HPCP | HBA_PORT_MPSP | HBA_PORT_FBSCP)>;
};
};
diff --git a/Documentation/devicetree/bindings/ata/baikal,bt1-ahci.yaml b/Documentation/devicetree/bindings/ata/baikal,bt1-ahci.yaml
new file mode 100644
index 000000000000..9b7ca4759bd7
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/baikal,bt1-ahci.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/baikal,bt1-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Baikal-T1 SoC AHCI SATA controller
+
+maintainers:
+ - Serge Semin <fancer.lancer@gmail.com>
+
+description:
+ AHCI SATA controller embedded into the Baikal-T1 SoC is based on the
+ DWC AHCI SATA v4.10a IP-core.
+
+allOf:
+ - $ref: snps,dwc-ahci-common.yaml#
+
+properties:
+ compatible:
+ const: baikal,bt1-ahci
+
+ clocks:
+ items:
+ - description: Peripheral APB bus clock
+ - description: Application AXI BIU clock
+ - description: SATA Ports reference clock
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: aclk
+ - const: ref
+
+ resets:
+ items:
+ - description: Application AXI BIU domain reset
+ - description: SATA Ports clock domain reset
+
+ reset-names:
+ items:
+ - const: arst
+ - const: ref
+
+ ports-implemented:
+ maximum: 0x3
+
+patternProperties:
+ "^sata-port@[0-1]$":
+ $ref: /schemas/ata/snps,dwc-ahci-common.yaml#/$defs/dwc-ahci-port
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1
+
+ snps,tx-ts-max:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Due to having AXI3 bus interface utilized the maximum Tx DMA
+ transaction size can't exceed 16 beats (AxLEN[3:0]).
+ enum: [ 1, 2, 4, 8, 16 ]
+
+ snps,rx-ts-max:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Due to having AXI3 bus interface utilized the maximum Rx DMA
+ transaction size can't exceed 16 beats (AxLEN[3:0]).
+ enum: [ 1, 2, 4, 8, 16 ]
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ sata@1f050000 {
+ compatible = "baikal,bt1-ahci";
+ reg = <0x1f050000 0x2000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupts = <0 64 4>;
+
+ clocks = <&ccu_sys 1>, <&ccu_axi 2>, <&sata_ref_clk>;
+ clock-names = "pclk", "aclk", "ref";
+
+ resets = <&ccu_axi 2>, <&ccu_sys 0>;
+ reset-names = "arst", "ref";
+
+ ports-implemented = <0x3>;
+
+ sata-port@0 {
+ reg = <0>;
+
+ snps,tx-ts-max = <4>;
+ snps,rx-ts-max = <4>;
+ };
+
+ sata-port@1 {
+ reg = <1>;
+
+ snps,tx-ts-max = <4>;
+ snps,rx-ts-max = <4>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml b/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml
index 235a93ac86b0..fe7f091e744f 100644
--- a/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml
+++ b/Documentation/devicetree/bindings/ata/brcm,sata-brcm.yaml
@@ -14,7 +14,7 @@ maintainers:
- Florian Fainelli <f.fainelli@gmail.com>
allOf:
- - $ref: sata-common.yaml#
+ - $ref: ahci-common.yaml#
properties:
compatible:
@@ -30,7 +30,6 @@ properties:
- const: brcm,bcm-nsp-ahci
reg:
- minItems: 2
maxItems: 2
reg-names:
@@ -41,8 +40,6 @@ properties:
interrupts:
maxItems: 1
- dma-coherent: true
-
if:
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
new file mode 100644
index 000000000000..9b31f864e071
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
@@ -0,0 +1,189 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/ceva,ahci-1v84.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ceva AHCI SATA Controller
+
+maintainers:
+ - Piyush Mehta <piyush.mehta@xilinx.com>
+
+description: |
+ The Ceva SATA controller mostly conforms to the AHCI interface with some
+ special extensions to add functionality, is a high-performance dual-port
+ SATA host controller with an AHCI compliant command layer which supports
+ advanced features such as native command queuing and frame information
+ structure (FIS) based switching for systems employing port multipliers.
+
+properties:
+ compatible:
+ const: ceva,ahci-1v84
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ dma-coherent: true
+
+ interrupts:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ ceva,p0-cominit-params:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ OOB timing value for COMINIT parameter for port 0.
+ The fields for the above parameter must be as shown below:-
+ ceva,p0-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
+ items:
+ - description: CINMP - COMINIT Negate Minimum Period.
+ - description: CIBGN - COMINIT Burst Gap Nominal.
+ - description: CIBGMX - COMINIT Burst Gap Maximum.
+ - description: CIBGMN - COMINIT Burst Gap Minimum.
+
+ ceva,p0-comwake-params:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ OOB timing value for COMWAKE parameter for port 0.
+ The fields for the above parameter must be as shown below:-
+ ceva,p0-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
+ items:
+ - description: CWBGMN - COMWAKE Burst Gap Minimum.
+ - description: CWBGMX - COMWAKE Burst Gap Maximum.
+ - description: CWBGN - COMWAKE Burst Gap Nominal.
+ - description: CWNMP - COMWAKE Negate Minimum Period.
+
+ ceva,p0-burst-params:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ Burst timing value for COM parameter for port 0.
+ The fields for the above parameter must be as shown below:-
+ ceva,p0-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
+ items:
+ - description: BMX - COM Burst Maximum.
+ - description: BNM - COM Burst Nominal.
+ - description: SFD - Signal Failure Detection value.
+ - description: PTST - Partial to Slumber timer value.
+
+ ceva,p0-retry-params:
+ $ref: /schemas/types.yaml#/definitions/uint16-array
+ description: |
+ Retry interval timing value for port 0.
+ The fields for the above parameter must be as shown below:-
+ ceva,p0-retry-params = /bits/ 16 <RIT RCT>;
+ items:
+ - description: RIT - Retry Interval Timer.
+ - description: RCT - Rate Change Timer.
+
+ ceva,p1-cominit-params:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ OOB timing value for COMINIT parameter for port 1.
+ The fields for the above parameter must be as shown below:-
+ ceva,p1-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
+ items:
+ - description: CINMP - COMINIT Negate Minimum Period.
+ - description: CIBGN - COMINIT Burst Gap Nominal.
+ - description: CIBGMX - COMINIT Burst Gap Maximum.
+ - description: CIBGMN - COMINIT Burst Gap Minimum.
+
+ ceva,p1-comwake-params:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ OOB timing value for COMWAKE parameter for port 1.
+ The fields for the above parameter must be as shown below:-
+ ceva,p1-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
+ items:
+ - description: CWBGMN - COMWAKE Burst Gap Minimum.
+ - description: CWBGMX - COMWAKE Burst Gap Maximum.
+ - description: CWBGN - COMWAKE Burst Gap Nominal.
+ - description: CWNMP - COMWAKE Negate Minimum Period.
+
+ ceva,p1-burst-params:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: |
+ Burst timing value for COM parameter for port 1.
+ The fields for the above parameter must be as shown below:-
+ ceva,p1-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
+ items:
+ - description: BMX - COM Burst Maximum.
+ - description: BNM - COM Burst Nominal.
+ - description: SFD - Signal Failure Detection value.
+ - description: PTST - Partial to Slumber timer value.
+
+ ceva,p1-retry-params:
+ $ref: /schemas/types.yaml#/definitions/uint16-array
+ description: |
+ Retry interval timing value for port 1.
+ The fields for the above parameter must be as shown below:-
+ ceva,pN-retry-params = /bits/ 16 <RIT RCT>;
+ items:
+ - description: RIT - Retry Interval Timer.
+ - description: RCT - Rate Change Timer.
+
+ ceva,broken-gen2:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: |
+ limit to gen1 speed instead of gen2.
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ items:
+ - const: sata-phy
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+ - ceva,p0-cominit-params
+ - ceva,p0-comwake-params
+ - ceva,p0-burst-params
+ - ceva,p0-retry-params
+ - ceva,p1-cominit-params
+ - ceva,p1-comwake-params
+ - ceva,p1-burst-params
+ - ceva,p1-retry-params
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/xlnx-zynqmp-power.h>
+ #include <dt-bindings/reset/xlnx-zynqmp-resets.h>
+ #include <dt-bindings/clock/xlnx-zynqmp-clk.h>
+ #include <dt-bindings/phy/phy.h>
+
+ sata: ahci@fd0c0000 {
+ compatible = "ceva,ahci-1v84";
+ reg = <0xfd0c0000 0x200>;
+ interrupt-parent = <&gic>;
+ interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&zynqmp_clk SATA_REF>;
+ ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
+ ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
+ ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
+ ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>;
+ ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
+ ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
+ ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
+ ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>;
+ ceva,broken-gen2;
+ phys = <&psgtr 1 PHY_TYPE_SATA 1 1>;
+ resets = <&zynqmp_reset ZYNQMP_RESET_SATA>;
+ };
diff --git a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
index 21a90975593b..529093666508 100644
--- a/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
+++ b/Documentation/devicetree/bindings/ata/cortina,gemini-sata-bridge.yaml
@@ -22,7 +22,6 @@ properties:
maxItems: 1
resets:
- minItems: 2
maxItems: 2
description: phandles to the reset lines for both SATA bridges
@@ -32,7 +31,6 @@ properties:
- const: sata1
clocks:
- minItems: 2
maxItems: 2
description: phandles to the compulsory peripheral clocks
diff --git a/Documentation/devicetree/bindings/ata/sata-common.yaml b/Documentation/devicetree/bindings/ata/sata-common.yaml
index 7ac77b1c5850..58c9342b9925 100644
--- a/Documentation/devicetree/bindings/ata/sata-common.yaml
+++ b/Documentation/devicetree/bindings/ata/sata-common.yaml
@@ -31,22 +31,27 @@ properties:
"#size-cells":
const: 0
+ dma-coherent: true
+
patternProperties:
"^sata-port@[0-9a-e]$":
+ $ref: '#/$defs/sata-port'
description: |
DT nodes for ports connected on the SATA host. The SATA port
nodes will be named "sata-port".
+
+additionalProperties: true
+
+$defs:
+ sata-port:
type: object
properties:
reg:
minimum: 0
- maximum: 14
description:
- The ID number of the drive port SATA can potentially use a port
- multiplier making it possible to connect up to 15 disks to a single
- SATA port.
-
-additionalProperties: true
+ The ID number of the SATA port. Aside with being directly used,
+ each port can have a Port Multiplier attached thus allowing to
+ access more than one drive by means of a single SATA port.
...
diff --git a/Documentation/devicetree/bindings/ata/sata_highbank.yaml b/Documentation/devicetree/bindings/ata/sata_highbank.yaml
index 49679b58041c..f23f26a8f21c 100644
--- a/Documentation/devicetree/bindings/ata/sata_highbank.yaml
+++ b/Documentation/devicetree/bindings/ata/sata_highbank.yaml
@@ -52,7 +52,6 @@ properties:
minItems: 1
maxItems: 8
items:
- minItems: 2
maxItems: 2
calxeda,tx-atten:
diff --git a/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml b/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml
new file mode 100644
index 000000000000..c1457910520b
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/snps,dwc-ahci-common.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/snps,dwc-ahci-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DWC AHCI SATA controller properties
+
+maintainers:
+ - Serge Semin <fancer.lancer@gmail.com>
+
+description:
+ This document defines device tree schema for the generic Synopsys DWC
+ AHCI controller properties.
+
+select: false
+
+allOf:
+ - $ref: ahci-common.yaml#
+
+properties:
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description:
+ Basic DWC AHCI SATA clock sources like application AXI/AHB BIU clock,
+ PM-alive clock, RxOOB detection clock, embedded PHYs reference (Rx/Tx)
+ clock, etc.
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+ items:
+ oneOf:
+ - description: Application APB/AHB/AXI BIU clock
+ enum:
+ - pclk
+ - aclk
+ - hclk
+ - sata
+ - description: Power Module keep-alive clock
+ const: pmalive
+ - description: RxOOB detection clock
+ const: rxoob
+ - description: SATA Ports reference clock
+ const: ref
+
+ resets:
+ description:
+ At least basic application and reference clock domains resets are
+ normally supported by the DWC AHCI SATA controller.
+ minItems: 1
+ maxItems: 4
+
+ reset-names:
+ minItems: 1
+ maxItems: 4
+ items:
+ oneOf:
+ - description: Application AHB/AXI BIU clock domain reset control
+ enum:
+ - arst
+ - hrst
+ - description: Power Module keep-alive clock domain reset control
+ const: pmalive
+ - description: RxOOB detection clock domain reset control
+ const: rxoob
+ - description: Reference clock domain reset control
+ const: ref
+
+patternProperties:
+ "^sata-port@[0-9a-e]$":
+ $ref: '#/$defs/dwc-ahci-port'
+
+additionalProperties: true
+
+$defs:
+ dwc-ahci-port:
+ $ref: /schemas/ata/ahci-common.yaml#/$defs/ahci-port
+
+ properties:
+ reg:
+ minimum: 0
+ maximum: 7
+
+ snps,tx-ts-max:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Maximal size of Tx DMA transactions in FIFO words
+ enum: [ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 ]
+
+ snps,rx-ts-max:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Maximal size of Rx DMA transactions in FIFO words
+ enum: [ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024 ]
+
+...
diff --git a/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml b/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml
new file mode 100644
index 000000000000..5afa4b57ce20
--- /dev/null
+++ b/Documentation/devicetree/bindings/ata/snps,dwc-ahci.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ata/snps,dwc-ahci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DWC AHCI SATA controller
+
+maintainers:
+ - Serge Semin <fancer.lancer@gmail.com>
+
+description:
+ This document defines device tree bindings for the generic Synopsys DWC
+ implementation of the AHCI SATA controller.
+
+allOf:
+ - $ref: snps,dwc-ahci-common.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - description: Synopsys AHCI SATA-compatible devices
+ const: snps,dwc-ahci
+ - description: SPEAr1340 AHCI SATA device
+ const: snps,spear-ahci
+ - description: Rockhip RK3568 AHCI controller
+ items:
+ - const: rockchip,rk3568-dwc-ahci
+ - const: snps,dwc-ahci
+
+patternProperties:
+ "^sata-port@[0-9a-e]$":
+ $ref: /schemas/ata/snps,dwc-ahci-common.yaml#/$defs/dwc-ahci-port
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/ata/ahci.h>
+
+ sata@122f0000 {
+ compatible = "snps,dwc-ahci";
+ reg = <0x122F0000 0x1ff>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&clock1>, <&clock2>;
+ clock-names = "aclk", "ref";
+
+ phys = <&sata_phy>;
+ phy-names = "sata-phy";
+
+ ports-implemented = <0x1>;
+
+ sata-port@0 {
+ reg = <0>;
+
+ hba-port-cap = <HBA_PORT_FBSCP>;
+
+ snps,tx-ts-max = <512>;
+ snps,rx-ts-max = <512>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml b/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
index ad313ccaaaef..85c4a979aec4 100644
--- a/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
+++ b/Documentation/devicetree/bindings/bus/allwinner,sun50i-a64-de2.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/bus/allwinner,sun50i-a64-de2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A64 Display Engine Bus Device Tree Bindings
+title: Allwinner A64 Display Engine Bus
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml b/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
index 3d719f468a5b..bee5f53f837f 100644
--- a/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
+++ b/Documentation/devicetree/bindings/bus/allwinner,sun8i-a23-rsb.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/bus/allwinner,sun8i-a23-rsb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A23 RSB Device Tree Bindings
+title: Allwinner A23 RSB
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/bus/palmbus.yaml b/Documentation/devicetree/bindings/bus/palmbus.yaml
index f5cbfaf52d53..30fa6526cfc2 100644
--- a/Documentation/devicetree/bindings/bus/palmbus.yaml
+++ b/Documentation/devicetree/bindings/bus/palmbus.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/bus/palmbus.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Ralink PalmBus Device Tree Bindings
+title: Ralink PalmBus
maintainers:
- Sergio Paracuellos <sergio.paracuellos@gmail.com>
diff --git a/Documentation/devicetree/bindings/bus/qcom,ssc-block-bus.yaml b/Documentation/devicetree/bindings/bus/qcom,ssc-block-bus.yaml
index 5b9705079015..8e9e6ff35d7d 100644
--- a/Documentation/devicetree/bindings/bus/qcom,ssc-block-bus.yaml
+++ b/Documentation/devicetree/bindings/bus/qcom,ssc-block-bus.yaml
@@ -28,11 +28,9 @@ properties:
- const: qcom,ssc-block-bus
reg:
- description: |
- Shall contain the addresses of the SSCAON_CONFIG0 and SSCAON_CONFIG1
- registers
- minItems: 2
- maxItems: 2
+ items:
+ - description: SSCAON_CONFIG0 registers
+ - description: SSCAON_CONFIG1 registers
reg-names:
items:
@@ -48,7 +46,6 @@ properties:
ranges: true
clocks:
- minItems: 6
maxItems: 6
clock-names:
@@ -61,9 +58,9 @@ properties:
- const: ssc_ahbs
power-domains:
- description: Power domain phandles for the ssc_cx and ssc_mx power domains
- minItems: 2
- maxItems: 2
+ items:
+ - description: CX power domain
+ - description: MX power domain
power-domain-names:
items:
@@ -71,11 +68,11 @@ properties:
- const: ssc_mx
resets:
- description: |
- Reset phandles for the ssc_reset and ssc_bcr resets (note: ssc_bcr is the
- branch control register associated with the ssc_xo and ssc_ahbs clocks)
- minItems: 2
- maxItems: 2
+ items:
+ - description: Main reset
+ - description:
+ SSC Branch Control Register reset (associated with the ssc_xo and
+ ssc_ahbs clocks)
reset-names:
items:
diff --git a/Documentation/devicetree/bindings/chosen.txt b/Documentation/devicetree/bindings/chosen.txt
deleted file mode 100644
index 1cc3aa10dcb1..000000000000
--- a/Documentation/devicetree/bindings/chosen.txt
+++ /dev/null
@@ -1,137 +0,0 @@
-The chosen node
----------------
-
-The chosen node does not represent a real device, but serves as a place
-for passing data between firmware and the operating system, like boot
-arguments. Data in the chosen node does not represent the hardware.
-
-The following properties are recognized:
-
-
-kaslr-seed
------------
-
-This property is used when booting with CONFIG_RANDOMIZE_BASE as the
-entropy used to randomize the kernel image base address location. Since
-it is used directly, this value is intended only for KASLR, and should
-not be used for other purposes (as it may leak information about KASLR
-offsets). It is parsed as a u64 value, e.g.
-
-/ {
- chosen {
- kaslr-seed = <0xfeedbeef 0xc0def00d>;
- };
-};
-
-Note that if this property is set from UEFI (or a bootloader in EFI
-mode) when EFI_RNG_PROTOCOL is supported, it will be overwritten by
-the Linux EFI stub (which will populate the property itself, using
-EFI_RNG_PROTOCOL).
-
-stdout-path
------------
-
-Device trees may specify the device to be used for boot console output
-with a stdout-path property under /chosen, as described in the Devicetree
-Specification, e.g.
-
-/ {
- chosen {
- stdout-path = "/serial@f00:115200";
- };
-
- serial@f00 {
- compatible = "vendor,some-uart";
- reg = <0xf00 0x10>;
- };
-};
-
-If the character ":" is present in the value, this terminates the path.
-The meaning of any characters following the ":" is device-specific, and
-must be specified in the relevant binding documentation.
-
-For UART devices, the preferred binding is a string in the form:
-
- <baud>{<parity>{<bits>{<flow>}}}
-
-where
-
- baud - baud rate in decimal
- parity - 'n' (none), 'o', (odd) or 'e' (even)
- bits - number of data bits
- flow - 'r' (rts)
-
-For example: 115200n8r
-
-Implementation note: Linux will look for the property "linux,stdout-path" or
-on PowerPC "stdout" if "stdout-path" is not found. However, the
-"linux,stdout-path" and "stdout" properties are deprecated. New platforms
-should only use the "stdout-path" property.
-
-linux,booted-from-kexec
------------------------
-
-This property is set (currently only on PowerPC, and only needed on
-book3e) by some versions of kexec-tools to tell the new kernel that it
-is being booted by kexec, as the booting environment may differ (e.g.
-a different secondary CPU release mechanism)
-
-linux,usable-memory-range
--------------------------
-
-This property holds a base address and size, describing a limited region in
-which memory may be considered available for use by the kernel. Memory outside
-of this range is not available for use.
-
-This property describes a limitation: memory within this range is only
-valid when also described through another mechanism that the kernel
-would otherwise use to determine available memory (e.g. memory nodes
-or the EFI memory map). Valid memory may be sparse within the range.
-e.g.
-
-/ {
- chosen {
- linux,usable-memory-range = <0x9 0xf0000000 0x0 0x10000000>;
- };
-};
-
-The main usage is for crash dump kernel to identify its own usable
-memory and exclude, at its boot time, any other memory areas that are
-part of the panicked kernel's memory.
-
-While this property does not represent a real hardware, the address
-and the size are expressed in #address-cells and #size-cells,
-respectively, of the root node.
-
-linux,elfcorehdr
-----------------
-
-This property holds the memory range, the address and the size, of the elf
-core header which mainly describes the panicked kernel's memory layout as
-PT_LOAD segments of elf format.
-e.g.
-
-/ {
- chosen {
- linux,elfcorehdr = <0x9 0xfffff000 0x0 0x800>;
- };
-};
-
-While this property does not represent a real hardware, the address
-and the size are expressed in #address-cells and #size-cells,
-respectively, of the root node.
-
-linux,initrd-start and linux,initrd-end
----------------------------------------
-
-These properties hold the physical start and end address of an initrd that's
-loaded by the bootloader. Note that linux,initrd-start is inclusive, but
-linux,initrd-end is exclusive.
-e.g.
-
-/ {
- chosen {
- linux,initrd-start = <0x82000000>;
- linux,initrd-end = <0x82800000>;
- };
-};
diff --git a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
index 2d98f7c4d3bc..50ebd8c57795 100644
--- a/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
+++ b/Documentation/devicetree/bindings/chrome/google,cros-ec-typec.yaml
@@ -20,13 +20,24 @@ properties:
compatible:
const: google,cros-ec-typec
- connector:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+patternProperties:
+ '^connector@[0-9a-f]+$':
$ref: /schemas/connector/usb-connector.yaml#
+ unevaluatedProperties: false
+ properties:
+ reg:
+ maxItems: 1
required:
- compatible
-additionalProperties: true #fixme
+additionalProperties: false
examples:
- |+
diff --git a/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml b/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml
new file mode 100644
index 000000000000..5b875af6a95a
--- /dev/null
+++ b/Documentation/devicetree/bindings/chrome/google,cros-kbd-led-backlight.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/chrome/google,cros-kbd-led-backlight.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChromeOS keyboard backlight LED driver.
+
+maintainers:
+ - Tzung-Bi Shih <tzungbi@kernel.org>
+
+properties:
+ compatible:
+ const: google,cros-kbd-led-backlight
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cros_ec: ec@0 {
+ compatible = "google,cros-ec-spi";
+ reg = <0>;
+
+ kbd-led-backlight {
+ compatible = "google,cros-kbd-led-backlight";
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
index d60e74654809..79b0752faa91 100644
--- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
+++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: EN7523 Clock Device Tree Bindings
+title: EN7523 Clock
maintainers:
- Felix Fietkau <nbd@nbd.name>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml
index 558db4b6ed17..93587b700476 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ahb-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-ahb-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 AHB Clock Device Tree Bindings
+title: Allwinner A10 AHB Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml
index b1e3d739beb2..e14e1aad9fd6 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb0-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-apb0-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 APB0 Bus Clock Device Tree Bindings
+title: Allwinner A10 APB0 Bus Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml
index 51b7a6d4ea54..8a4747ebe0ba 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-apb1-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-apb1-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 APB1 Bus Clock Device Tree Bindings
+title: Allwinner A10 APB1 Bus Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml
index d801158e15de..aa08dd49dd61 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-axi-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-axi-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 AXI Clock Device Tree Bindings
+title: Allwinner A10 AXI Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ccu.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ccu.yaml
index 15ed64d35261..1690b9d99c3d 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ccu.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ccu.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-ccu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner Clock Control Unit Device Tree Bindings
+title: Allwinner Clock Control Unit
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml
index 0dfafba1a168..08d073520cfa 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-cpu-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-cpu-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 CPU Clock Device Tree Bindings
+title: Allwinner A10 CPU Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml
index 7484a7ab7dea..e665e50c1785 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-display-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-display-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Display Clock Device Tree Bindings
+title: Allwinner A10 Display Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
index 9a37a357cb4e..c4714d0fbe07 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-gates-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-gates-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Bus Gates Clock Device Tree Bindings
+title: Allwinner A10 Bus Gates Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml
index 18f131e262b4..e824e33489b6 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mbus-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mbus-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 MBUS Clock Device Tree Bindings
+title: Allwinner A10 MBUS Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
index 5199285a661a..c612f94befb9 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mmc-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mmc-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Module 1 Clock Device Tree Bindings
+title: Allwinner A10 Module 1 Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml
index 3e2abe3e67c1..80ae3a7a588c 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod0-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mod0-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Module 0 Clock Device Tree Bindings
+title: Allwinner A10 Module 0 Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml
index 7ddb55c75cff..4f9a8d44d42a 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-mod1-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-mod1-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Module 1 Clock Device Tree Bindings
+title: Allwinner A10 Module 1 Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
index c604822cda07..52a7b6e7124c 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-osc-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-osc-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Gatable Oscillator Clock Device Tree Bindings
+title: Allwinner A10 Gatable Oscillator Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml
index e5d9d45dab8a..b13a1f21d5da 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll1-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll1-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 CPU PLL Device Tree Bindings
+title: Allwinner A10 CPU PLL
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml
index 4b80a42fb3da..418d207d23b8 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll3-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll3-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Video PLL Device Tree Bindings
+title: Allwinner A10 Video PLL
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml
index 415bd77de53d..76ef3f0c7f2c 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll5-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll5-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 DRAM PLL Device Tree Bindings
+title: Allwinner A10 DRAM PLL
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml
index ec5652f76027..a94c93c90ece 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-pll6-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-pll6-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Peripheral PLL Device Tree Bindings
+title: Allwinner A10 Peripheral PLL
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml
index 0a335c615efd..6646b2a99fc1 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-tcon-ch0-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 TCON Channel 0 Clock Device Tree Bindings
+title: Allwinner A10 TCON Channel 0 Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml
index cd95d25bfe7c..5103b675e488 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-usb-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-usb-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 USB Clock Device Tree Bindings
+title: Allwinner A10 USB Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml
index 5dfd0c1c27b4..80337e38d6e5 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun4i-a10-ve-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun4i-a10-ve-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Video Engine Clock Device Tree Bindings
+title: Allwinner A10 Video Engine Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml
index 99add7991c48..c6a6fbb6863b 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun5i-a13-ahb-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun5i-a13-ahb-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A13 AHB Clock Device Tree Bindings
+title: Allwinner A13 AHB Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml
index 5f377205af71..7d6a6a34d20c 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun6i-a31-pll6-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun6i-a31-pll6-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 Peripheral PLL Device Tree Bindings
+title: Allwinner A31 Peripheral PLL
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml
index 59e5dce1b65a..b6202de35707 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-gmac-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun7i-a20-gmac-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A20 GMAC TX Clock Device Tree Bindings
+title: Allwinner A20 GMAC TX Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml
index c745733bcf04..fde7f7dc3d34 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun7i-a20-out-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun7i-a20-out-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A20 Output Clock Device Tree Bindings
+title: Allwinner A20 Output Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml
index e79eeac5f086..70369bd633e4 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun8i-a83t-de2-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun8i-a83t-de2-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A83t Display Engine 2/3 Clock Controller Device Tree Bindings
+title: Allwinner A83t Display Engine 2/3 Clock Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -28,6 +28,9 @@ properties:
- items:
- const: allwinner,sun8i-r40-de2-clk
- const: allwinner,sun8i-h3-de2-clk
+ - items:
+ - const: allwinner,sun20i-d1-de2-clk
+ - const: allwinner,sun50i-h5-de2-clk
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml
index 3eb2bf65b230..45b9e2c7c1d1 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun8i-h3-bus-gates-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun8i-h3-bus-gates-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Bus Gates Clock Device Tree Bindings
+title: Allwinner A10 Bus Gates Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml
index d178da90aaec..f0f65af8ae22 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-ahb-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-ahb-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 AHB Clock Device Tree Bindings
+title: Allwinner A80 AHB Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml
index 0351c79bd221..e9f9bc8f5794 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-apb0-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-apb0-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 APB0 Bus Clock Device Tree Bindings
+title: Allwinner A80 APB0 Bus Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml
index 24d5b2f1a314..c48db2d49340 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-cpus-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-cpus-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 CPUS Clock Device Tree Bindings
+title: Allwinner A80 CPUS Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml
index a82c7c7e942b..e9f81a343be1 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-de-clks.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-de-clks.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 Display Engine Clock Controller Device Tree Bindings
+title: Allwinner A80 Display Engine Clock Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml
index 43963c3062c8..d3ce5eb18d4e 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-gt-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-gt-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 GT Bus Clock Device Tree Bindings
+title: Allwinner A80 GT Bus Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml
index 20dc115fa211..65ee5afe83cc 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-mmc-config-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-mmc-config-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 MMC Configuration Clock Device Tree Bindings
+title: Allwinner A80 MMC Configuration Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml
index b76bab6a30e9..261264a8aef6 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-pll4-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-pll4-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 Peripheral PLL Device Tree Bindings
+title: Allwinner A80 Peripheral PLL
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clks.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clks.yaml
index 6532fb6821bc..515c15d5f661 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clks.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-clks.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-usb-clks.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 USB Clock Controller Device Tree Bindings
+title: Allwinner A80 USB Clock Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml
index 15218d10e78e..3f7b8d9511f1 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-mod-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-usb-mod-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 USB Module Clock Device Tree Bindings
+title: Allwinner A80 USB Module Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml
index 2569041684e6..0d49072d47ca 100644
--- a/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/allwinner,sun9i-a80-usb-phy-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/allwinner,sun9i-a80-usb-phy-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 USB PHY Clock Device Tree Bindings
+title: Allwinner A80 USB PHY Clock
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml
index 4b8669f870ec..d98d95d8e8c9 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml
+++ b/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/amlogic,meson8-ddr-clkc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Amlogic DDR Clock Controller Device Tree Bindings
+title: Amlogic DDR Clock Controller
maintainers:
- Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm2711-dvp.yaml b/Documentation/devicetree/bindings/clock/brcm,bcm2711-dvp.yaml
index 08543ecbe35b..2d40df2d34df 100644
--- a/Documentation/devicetree/bindings/clock/brcm,bcm2711-dvp.yaml
+++ b/Documentation/devicetree/bindings/clock/brcm,bcm2711-dvp.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/brcm,bcm2711-dvp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM2711 HDMI DVP Device Tree Bindings
+title: Broadcom BCM2711 HDMI DVP
maintainers:
- Maxime Ripard <mripard@kernel.org>
diff --git a/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
index 7f5cf4001f76..998e5cce652f 100644
--- a/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/canaan,k210-clk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/canaan,k210-clk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Canaan Kendryte K210 Clock Device Tree Bindings
+title: Canaan Kendryte K210 Clock
maintainers:
- Damien Le Moal <damien.lemoal@wdc.com>
diff --git a/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml b/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml
index 0abd6ba82dfd..82836086cac1 100644
--- a/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml
+++ b/Documentation/devicetree/bindings/clock/cirrus,cs2000-cp.yaml
@@ -23,7 +23,6 @@ properties:
clocks:
description:
Common clock binding for CLK_IN, XTI/REF_CLK
- minItems: 2
maxItems: 2
clock-names:
diff --git a/Documentation/devicetree/bindings/clock/efm32-clock.txt b/Documentation/devicetree/bindings/clock/efm32-clock.txt
deleted file mode 100644
index 263d293f6a10..000000000000
--- a/Documentation/devicetree/bindings/clock/efm32-clock.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-* Clock bindings for Energy Micro efm32 Giant Gecko's Clock Management Unit
-
-Required properties:
-- compatible: Should be "efm32gg,cmu"
-- reg: Base address and length of the register set
-- interrupts: Interrupt used by the CMU
-- #clock-cells: Should be <1>
-
-The clock consumer should specify the desired clock by having the clock ID in
-its "clocks" phandle cell. The header efm32-clk.h contains a list of available
-IDs.
diff --git a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
index f415845b38dd..0b02378a3a0c 100644
--- a/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/fixed-factor-clock.yaml
@@ -13,7 +13,6 @@ maintainers:
properties:
compatible:
enum:
- - allwinner,sun4i-a10-pll3-2x-clk
- fixed-factor-clock
"#clock-cells":
diff --git a/Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml b/Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml
new file mode 100644
index 000000000000..f2c48460a399
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,scu-clk.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,scu-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Clock bindings based on SCU Message Protocol
+
+maintainers:
+ - Abel Vesa <abel.vesa@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+ This binding uses the common clock binding.
+ (Documentation/devicetree/bindings/clock/clock-bindings.txt)
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell. See the full list of clock IDs from
+ include/dt-bindings/clock/imx8qxp-clock.h
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - fsl,imx8dxl-clk
+ - fsl,imx8qm-clk
+ - fsl,imx8qxp-clk
+ - const: fsl,scu-clk
+
+ '#clock-cells':
+ const: 2
+
+required:
+ - compatible
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller {
+ compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
+ #clock-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/gpio-gate-clock.txt b/Documentation/devicetree/bindings/clock/gpio-gate-clock.txt
deleted file mode 100644
index d3379ff9b84b..000000000000
--- a/Documentation/devicetree/bindings/clock/gpio-gate-clock.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Binding for simple gpio gated clock.
-
-This binding uses the common clock binding[1].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-
-Required properties:
-- compatible : shall be "gpio-gate-clock".
-- #clock-cells : from common clock binding; shall be set to 0.
-- enable-gpios : GPIO reference for enabling and disabling the clock.
-
-Optional properties:
-- clocks: Maximum of one parent clock is supported.
-
-Example:
- clock {
- compatible = "gpio-gate-clock";
- clocks = <&parentclk>;
- #clock-cells = <0>;
- enable-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
- };
diff --git a/Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml b/Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
new file mode 100644
index 000000000000..d09d0e3f0c6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/gpio-gate-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Simple GPIO clock gate
+
+maintainers:
+ - Jyri Sarha <jsarha@ti.com>
+
+properties:
+ compatible:
+ const: gpio-gate-clock
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 0
+
+ enable-gpios:
+ description: GPIO reference for enabling and disabling the clock.
+ maxItems: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+ - enable-gpios
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ clock {
+ compatible = "gpio-gate-clock";
+ clocks = <&parentclk>;
+ #clock-cells = <0>;
+ enable-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
index 7c331bfbe370..f9ba9864d8b5 100644
--- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
+++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
@@ -56,6 +56,7 @@ properties:
- idt,5p49v5935
- idt,5p49v6901
- idt,5p49v6965
+ - idt,5p49v6975
reg:
description: I2C device address
@@ -108,7 +109,7 @@ patternProperties:
properties:
idt,mode:
description:
- The output drive mode. Values defined in dt-bindings/clk/versaclock.h
+ The output drive mode. Values defined in dt-bindings/clock/versaclock.h
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 6
@@ -134,6 +135,7 @@ allOf:
enum:
- idt,5p49v5933
- idt,5p49v5935
+ - idt,5p49v6975
then:
# Devices with builtin crystal + optional external input
properties:
@@ -151,7 +153,7 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/clk/versaclock.h>
+ #include <dt-bindings/clock/versaclock.h>
/* 25MHz reference crystal */
ref25: ref25m {
diff --git a/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml b/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml
index 770546195fb5..731bfe0408c2 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,apmixedsys.yaml
@@ -34,6 +34,7 @@ properties:
- mediatek,mt2712-apmixedsys
- mediatek,mt6765-apmixedsys
- mediatek,mt6779-apmixedsys
+ - mediatek,mt6795-apmixedsys
- mediatek,mt7629-apmixedsys
- mediatek,mt8167-apmixedsys
- mediatek,mt8183-apmixedsys
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml
new file mode 100644
index 000000000000..04469eabc8fa
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt6795-clock.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt6795-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Functional Clock Controller for MT6795
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ - Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+description: |
+ The clock architecture in MediaTek like below
+ PLLs -->
+ dividers -->
+ muxes
+ -->
+ clock gate
+
+ The devices provide clock gate control in different IP blocks.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt6795-mfgcfg
+ - mediatek,mt6795-vdecsys
+ - mediatek,mt6795-vencsys
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ mfgcfg: clock-controller@13000000 {
+ compatible = "mediatek,mt6795-mfgcfg";
+ reg = <0 0x13000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ vdecsys: clock-controller@16000000 {
+ compatible = "mediatek,mt6795-vdecsys";
+ reg = <0 0x16000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+
+ vencsys: clock-controller@18000000 {
+ compatible = "mediatek,mt6795-vencsys";
+ reg = <0 0x18000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml
new file mode 100644
index 000000000000..378b761237d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt6795-sys-clock.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt6795-sys-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek System Clock Controller for MT6795
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+ - Chun-Jie Chen <chun-jie.chen@mediatek.com>
+
+description:
+ The Mediatek system clock controller provides various clocks and system
+ configuration like reset and bus protection on MT6795.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt6795-apmixedsys
+ - mediatek,mt6795-infracfg
+ - mediatek,mt6795-pericfg
+ - mediatek,mt6795-topckgen
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ topckgen: clock-controller@10000000 {
+ compatible = "mediatek,mt6795-topckgen", "syscon";
+ reg = <0 0x10000000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
index 0c0b0ae5e2ac..b42f0f5c11b7 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt7621-sysc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/mediatek,mt7621-sysc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MT7621 Clock Device Tree Bindings
+title: MT7621 Clock
maintainers:
- Sergio Paracuellos <sergio.paracuellos@gmail.com>
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8365-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8365-clock.yaml
new file mode 100644
index 000000000000..b327ecb4e524
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8365-clock.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt8365-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Functional Clock Controller for MT8365
+
+maintainers:
+ - Markus Schneider-Pargmann <msp@baylibre.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8365-apu
+ - mediatek,mt8365-imgsys
+ - mediatek,mt8365-mfgcfg
+ - mediatek,mt8365-vdecsys
+ - mediatek,mt8365-vencsys
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ apu: clock-controller@19020000 {
+ compatible = "mediatek,mt8365-apu", "syscon";
+ reg = <0x19020000 0x1000>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,mt8365-sys-clock.yaml b/Documentation/devicetree/bindings/clock/mediatek,mt8365-sys-clock.yaml
new file mode 100644
index 000000000000..643f84660c8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mediatek,mt8365-sys-clock.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/mediatek,mt8365-sys-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek System Clock Controller for MT8365
+
+maintainers:
+ - Markus Schneider-Pargmann <msp@baylibre.com>
+
+description:
+ The apmixedsys module provides most of PLLs which generated from SoC 26m.
+ The topckgen provides dividers and muxes which provides the clock source to other IP blocks.
+ The infracfg_ao and pericfg_ao provides clock gate in peripheral and infrastructure IP blocks.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8365-topckgen
+ - mediatek,mt8365-infracfg
+ - mediatek,mt8365-apmixedsys
+ - mediatek,mt8365-pericfg
+ - mediatek,mt8365-mcucfg
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ topckgen: clock-controller@10000000 {
+ compatible = "mediatek,mt8365-topckgen", "syscon";
+ reg = <0x10000000 0x1000>;
+ #clock-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml b/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml
index 5b8b37a2e594..81531b5b0db7 100644
--- a/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml
+++ b/Documentation/devicetree/bindings/clock/mediatek,topckgen.yaml
@@ -33,6 +33,7 @@ properties:
- mediatek,mt2712-topckgen
- mediatek,mt6765-topckgen
- mediatek,mt6779-topckgen
+ - mediatek,mt6795-topckgen
- mediatek,mt7629-topckgen
- mediatek,mt7986-topckgen
- mediatek,mt8167-topckgen
diff --git a/Documentation/devicetree/bindings/clock/microchip,mpfs-ccc.yaml b/Documentation/devicetree/bindings/clock/microchip,mpfs-ccc.yaml
new file mode 100644
index 000000000000..f1770360798f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/microchip,mpfs-ccc.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/microchip,mpfs-ccc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PolarFire SoC Fabric Clock Conditioning Circuitry
+
+maintainers:
+ - Conor Dooley <conor.dooley@microchip.com>
+
+description: |
+ Microchip PolarFire SoC has 4 Clock Conditioning Circuitry blocks. Each of
+ these blocks contains two PLLs and 2 DLLs & are located in the four corners of
+ the FPGA. For more information see "PolarFire SoC FPGA Clocking Resources" at:
+ https://onlinedocs.microchip.com/pr/GUID-8F0CC4C0-0317-4262-89CA-CE7773ED1931-en-US-1/index.html
+
+properties:
+ compatible:
+ const: microchip,mpfs-ccc
+
+ reg:
+ items:
+ - description: PLL0's control registers
+ - description: PLL1's control registers
+ - description: DLL0's control registers
+ - description: DLL1's control registers
+
+ clocks:
+ description:
+ The CCC PLL's have two input clocks. It is required that even if the input
+ clocks are identical that both are provided.
+ minItems: 2
+ items:
+ - description: PLL0's refclk0
+ - description: PLL0's refclk1
+ - description: PLL1's refclk0
+ - description: PLL1's refclk1
+ - description: DLL0's refclk
+ - description: DLL1's refclk
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: pll0_ref0
+ - const: pll0_ref1
+ - const: pll1_ref0
+ - const: pll1_ref1
+ - const: dll0_ref
+ - const: dll1_ref
+
+ '#clock-cells':
+ const: 1
+ description: |
+ The clock consumer should specify the desired clock by having the clock
+ ID in its "clocks" phandle cell.
+ See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
+ PolarFire clock IDs.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@38100000 {
+ compatible = "microchip,mpfs-ccc";
+ reg = <0x38010000 0x1000>, <0x38020000 0x1000>,
+ <0x39010000 0x1000>, <0x39020000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&refclk_ccc>, <&refclk_ccc>, <&refclk_ccc>, <&refclk_ccc>,
+ <&refclk_ccc>, <&refclk_ccc>;
+ clock-names = "pll0_ref0", "pll0_ref1", "pll1_ref0", "pll1_ref1",
+ "dll0_ref", "dll1_ref";
+ };
diff --git a/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml b/Documentation/devicetree/bindings/clock/microchip,mpfs-clkcfg.yaml
index 016a4f378b9b..b2ce78722247 100644
--- a/Documentation/devicetree/bindings/clock/microchip,mpfs.yaml
+++ b/Documentation/devicetree/bindings/clock/microchip,mpfs-clkcfg.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/clock/microchip,mpfs.yaml#
+$id: http://devicetree.org/schemas/clock/microchip,mpfs-clkcfg.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip PolarFire Clock Control Module Binding
@@ -40,8 +40,21 @@ properties:
const: 1
description: |
The clock consumer should specify the desired clock by having the clock
- ID in its "clocks" phandle cell. See include/dt-bindings/clock/microchip,mpfs-clock.h
- for the full list of PolarFire clock IDs.
+ ID in its "clocks" phandle cell.
+ See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
+ PolarFire clock IDs.
+
+ resets:
+ maxItems: 1
+
+ '#reset-cells':
+ description:
+ The AHB/AXI peripherals on the PolarFire SoC have reset support, so from
+ CLK_ENVM to CLK_CFM. The reset consumer should specify the desired
+ peripheral via the clock ID in its "resets" phandle cell.
+ See include/dt-bindings/clock/microchip,mpfs-clock.h for the full list of
+ PolarFire clock IDs.
+ const: 1
required:
- compatible
diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
new file mode 100644
index 000000000000..771db2ddf026
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/nuvoton,npcm845-clk.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM8XX Clock Controller Binding
+
+maintainers:
+ - Tomer Maimon <tmaimon77@gmail.com>
+
+description: |
+ Nuvoton Arbel BMC NPCM8XX contains an integrated clock controller, which
+ generates and supplies clocks to all modules within the BMC.
+
+properties:
+ compatible:
+ enum:
+ - nuvoton,npcm845-clk
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+ description:
+ See include/dt-bindings/clock/nuvoton,npcm8xx-clock.h for the full
+ list of NPCM8XX clock IDs.
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ ahb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@f0801000 {
+ compatible = "nuvoton,npcm845-clk";
+ reg = <0x0 0xf0801000 0x0 0x1000>;
+ #clock-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml
index fbd758470b88..fe6ca4f68bbe 100644
--- a/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,a53pll.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm A53 PLL Binding
maintainers:
- - Sivaprakash Murugesan <sivaprak@codeaurora.org>
+ - Bjorn Andersson <andersson@kernel.org>
description:
The A53 PLL on few Qualcomm platforms is the main CPU PLL used used for
@@ -17,6 +17,7 @@ properties:
compatible:
enum:
- qcom,ipq6018-a53pll
+ - qcom,ipq8074-a53pll
- qcom,msm8916-a53pll
- qcom,msm8939-a53pll
diff --git a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
index 31497677e8de..7a8d375e055e 100644
--- a/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,dispcc-sm8x50.yaml
@@ -4,18 +4,19 @@
$id: http://devicetree.org/schemas/clock/qcom,dispcc-sm8x50.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Qualcomm Display Clock & Reset Controller Binding for SM8150/SM8250
+title: Qualcomm Display Clock & Reset Controller Binding for SM8150/SM8250/SM8350
maintainers:
- Jonathan Marek <jonathan@marek.ca>
description: |
Qualcomm display clock control module which supports the clocks, resets and
- power domains on SM8150 and SM8250.
+ power domains on SM8150/SM8250/SM8350.
See also:
dt-bindings/clock/qcom,dispcc-sm8150.h
dt-bindings/clock/qcom,dispcc-sm8250.h
+ dt-bindings/clock/qcom,dispcc-sm8350.h
properties:
compatible:
@@ -23,6 +24,7 @@ properties:
- qcom,sc8180x-dispcc
- qcom,sm8150-dispcc
- qcom,sm8250-dispcc
+ - qcom,sm8350-dispcc
clocks:
items:
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
index 9fafcb080069..6b4efd64c154 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/qcom,gcc-apq8064.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Qualcomm Global Clock & Reset Controller Binding for APQ8064
+title: Qualcomm Global Clock & Reset Controller Binding for APQ8064/MSM8960
allOf:
- $ref: qcom,gcc.yaml#
@@ -23,11 +23,34 @@ description: |
properties:
compatible:
- const: qcom,gcc-apq8064
+ oneOf:
+ - items:
+ - enum:
+ - qcom,gcc-apq8064
+ - qcom,gcc-msm8960
+ - const: syscon
+ - enum:
+ - qcom,gcc-apq8064
+ - qcom,gcc-msm8960
+ deprecated: true
+
+ thermal-sensor:
+ description: child tsens device
+ $ref: /schemas/thermal/qcom-tsens.yaml#
+
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: cxo
+ - const: pxo
+ - const: pll4
nvmem-cells:
minItems: 1
maxItems: 2
+ deprecated: true
description:
Qualcomm TSENS (thermal sensor device) on some devices can
be part of GCC and hence the TSENS properties can also be part
@@ -37,31 +60,39 @@ properties:
nvmem-cell-names:
minItems: 1
+ deprecated: true
items:
- const: calib
- const: calib_backup
'#thermal-sensor-cells':
const: 1
+ deprecated: true
required:
- compatible
- - nvmem-cells
- - nvmem-cell-names
- - '#thermal-sensor-cells'
unevaluatedProperties: false
examples:
- |
clock-controller@900000 {
- compatible = "qcom,gcc-apq8064";
+ compatible = "qcom,gcc-apq8064", "syscon";
reg = <0x00900000 0x4000>;
- nvmem-cells = <&tsens_calib>, <&tsens_backup>;
- nvmem-cell-names = "calib", "calib_backup";
#clock-cells = <1>;
#reset-cells = <1>;
#power-domain-cells = <1>;
- #thermal-sensor-cells = <1>;
+
+ thermal-sensor {
+ compatible = "qcom,msm8960-tsens";
+
+ nvmem-cells = <&tsens_calib>, <&tsens_backup>;
+ nvmem-cell-names = "calib", "calib_backup";
+ interrupts = <0 178 4>;
+ interrupt-names = "uplow";
+
+ #qcom,sensors = <11>;
+ #thermal-sensor-cells = <1>;
+ };
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
index 98572b4a9b60..21470f52ce36 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml
@@ -24,6 +24,9 @@ properties:
'#clock-cells':
const: 1
+ '#power-domain-cells':
+ const: 1
+
'#reset-cells':
const: 1
@@ -38,6 +41,7 @@ required:
- compatible
- reg
- '#clock-cells'
+ - '#power-domain-cells'
- '#reset-cells'
additionalProperties: false
@@ -48,6 +52,7 @@ examples:
compatible = "qcom,gcc-ipq8074";
reg = <0x01800000 0x80000>;
#clock-cells = <1>;
+ #power-domain-cells = <1>;
#reset-cells = <1>;
};
...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
new file mode 100644
index 000000000000..09b2ea60d356
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8660.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-msm8660.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller Binding for MSM8660
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module which supports the clocks and resets on
+ MSM8660
+
+ See also:
+ - dt-bindings/clock/qcom,gcc-msm8660.h
+ - dt-bindings/reset/qcom,gcc-msm8660.h
+
+allOf:
+ - $ref: "qcom,gcc.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-msm8660
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: pxo
+ - const: cxo
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ # Example for GCC for MSM8974:
+ - |
+ clock-controller@900000 {
+ compatible = "qcom,gcc-msm8660";
+ reg = <0x900000 0x4000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ clocks = <&pxo_board>, <&cxo_board>;
+ clock-names = "pxo", "cxo";
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
new file mode 100644
index 000000000000..2272ea5f78d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8909.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-msm8909.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller Binding for MSM8909
+
+maintainers:
+ - Stephan Gerhold <stephan@gerhold.net>
+
+description: |
+ Qualcomm global clock control module which supports the clocks, resets and
+ power domains on MSM8909.
+
+ See also:
+ - dt-bindings/clock/qcom,gcc-msm8909.h
+
+properties:
+ compatible:
+ const: qcom,gcc-msm8909
+
+ clocks:
+ items:
+ - description: XO source
+ - description: Sleep clock source
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: sleep_clk
+ - const: dsi0pll
+ - const: dsi0pllbyte
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ gcc: clock-controller@1800000 {
+ compatible = "qcom,gcc-msm8909";
+ reg = <0x01800000 0x80000>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ clocks = <&xo_board>, <&sleep_clk>, <&dsi0_phy 1>, <&dsi0_phy 0>;
+ clock-names = "xo", "sleep_clk", "dsi0pll", "dsi0pllbyte";
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
new file mode 100644
index 000000000000..2ceb1e501ef9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8916.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gcc-msm8916.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller Binding for MSM8916 and MSM8939
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+ - Taniya Das <quic_tdas@quicinc.com>
+
+description: |
+ Qualcomm global clock control module which supports the clocks, resets and
+ power domains on MSM8916 or MSM8939.
+
+ See also:
+ - dt-bindings/clock/qcom,gcc-msm8916.h
+ - dt-bindings/clock/qcom,gcc-msm8939.h
+ - dt-bindings/reset/qcom,gcc-msm8916.h
+ - dt-bindings/reset/qcom,gcc-msm8939.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,gcc-msm8916
+ - qcom,gcc-msm8939
+
+ clocks:
+ items:
+ - description: XO source
+ - description: Sleep clock source
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+ - description: External MCLK clock
+ - description: External Primary I2S clock
+ - description: External Secondary I2S clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: sleep_clk
+ - const: dsi0pll
+ - const: dsi0pllbyte
+ - const: ext_mclk
+ - const: ext_pri_i2s
+ - const: ext_sec_i2s
+
+required:
+ - compatible
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ clock-controller@300000 {
+ compatible = "qcom,gcc-msm8916";
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ reg = <0x300000 0x90000>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
index f3430b159caa..4b7d69518371 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8976.yaml
@@ -45,29 +45,16 @@ properties:
description:
Phandle to voltage regulator providing power to the GX domain.
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- vdd_gfx-supply
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
index 22e67b238bb6..7b9fef6d9b23 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8994.yaml
@@ -32,28 +32,15 @@ properties:
- const: xo
- const: sleep
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
index 5a5b2214f0ca..dfc5165db9f1 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml
@@ -22,41 +22,40 @@ properties:
const: qcom,gcc-msm8996
clocks:
+ minItems: 3
items:
- description: XO source
- description: Second XO source
- description: Sleep clock source
+ - description: PCIe 0 PIPE clock (optional)
+ - description: PCIe 1 PIPE clock (optional)
+ - description: PCIe 2 PIPE clock (optional)
+ - description: USB3 PIPE clock (optional)
+ - description: UFS RX symbol 0 clock (optional)
+ - description: UFS RX symbol 1 clock (optional)
+ - description: UFS TX symbol 0 clock (optional)
clock-names:
+ minItems: 3
items:
- const: cxo
- const: cxo2
- const: sleep_clk
-
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
+ - const: pcie_0_pipe_clk_src
+ - const: pcie_1_pipe_clk_src
+ - const: pcie_2_pipe_clk_src
+ - const: usb3_phy_pipe_clk_src
+ - const: ufs_rx_symbol_0_clk_src
+ - const: ufs_rx_symbol_1_clk_src
+ - const: ufs_tx_symbol_0_clk_src
required:
- compatible
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
index 8151c0a05649..544a2335cf05 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml
@@ -37,32 +37,15 @@ properties:
- const: core_bi_pll_test_se # Optional clock
minItems: 2
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
index 6c45e0f85494..76988e04c7db 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-other.yaml
@@ -18,11 +18,7 @@ description: |
- dt-bindings/clock/qcom,gcc-ipq4019.h
- dt-bindings/clock/qcom,gcc-ipq6018.h
- dt-bindings/reset/qcom,gcc-ipq6018.h
- - dt-bindings/clock/qcom,gcc-msm8939.h
- dt-bindings/clock/qcom,gcc-msm8953.h
- - dt-bindings/reset/qcom,gcc-msm8939.h
- - dt-bindings/clock/qcom,gcc-msm8660.h
- - dt-bindings/reset/qcom,gcc-msm8660.h
- dt-bindings/clock/qcom,gcc-msm8974.h (qcom,gcc-msm8226 and qcom,gcc-msm8974)
- dt-bindings/reset/qcom,gcc-msm8974.h (qcom,gcc-msm8226 and qcom,gcc-msm8974)
- dt-bindings/clock/qcom,gcc-mdm9607.h
@@ -40,11 +36,7 @@ properties:
- qcom,gcc-ipq6018
- qcom,gcc-mdm9607
- qcom,gcc-msm8226
- - qcom,gcc-msm8660
- - qcom,gcc-msm8916
- - qcom,gcc-msm8939
- qcom,gcc-msm8953
- - qcom,gcc-msm8960
- qcom,gcc-msm8974
- qcom,gcc-msm8974pro
- qcom,gcc-msm8974pro-ac
@@ -58,10 +50,10 @@ required:
unevaluatedProperties: false
examples:
- # Example for GCC for MSM8960:
+ # Example for GCC for MSM8974:
- |
clock-controller@900000 {
- compatible = "qcom,gcc-msm8960";
+ compatible = "qcom,gcc-msm8974";
reg = <0x900000 0x4000>;
#clock-cells = <1>;
#reset-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
index 5de9c8263138..aec37e3f5e30 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-qcm2290.yaml
@@ -30,32 +30,15 @@ properties:
- const: bi_tcxo
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml
index a404c8fbee67..e4d490e65d14 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml
@@ -33,32 +33,15 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml
index 5693b8997570..ea61367e5abc 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc7280.yaml
@@ -44,28 +44,15 @@ properties:
- const: ufs_phy_tx_symbol_0_clk
- const: usb3_phy_wrapper_gcc_usb30_pipe_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml
index f03ef96e57fa..30b5d1215fa8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8180x.yaml
@@ -32,32 +32,15 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
index 0bcdc69c6f89..b1bf768530a3 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sc8280xp.yaml
@@ -33,7 +33,7 @@ properties:
- description: Primary USB SuperSpeed pipe clock
- description: USB4 PHY pipegmux clock source
- description: USB4 PHY DP gmux clock source
- - description: USB4 PHY sys piegmux clock source
+ - description: USB4 PHY sys pipegmux clock source
- description: USB4 PHY PCIe pipe clock
- description: USB4 PHY router max pipe clock
- description: Primary USB4 RX0 clock
@@ -46,7 +46,7 @@ properties:
- description: Second USB4 PHY router max pipe clock
- description: Secondary USB4 RX0 clock
- description: Secondary USB4 RX1 clock
- - description: Multiport USB first SupserSpeed pipe clock
+ - description: Multiport USB first SuperSpeed pipe clock
- description: Multiport USB second SuperSpeed pipe clock
- description: PCIe 2a pipe clock
- description: PCIe 2b pipe clock
@@ -56,30 +56,17 @@ properties:
- description: First EMAC controller reference clock
- description: Second EMAC controller reference clock
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
protected-clocks:
maxItems: 389
required:
- compatible
- clocks
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml
index d902f137ab17..e169d46c78f8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdm845.yaml
@@ -19,48 +19,67 @@ description: |
properties:
compatible:
- const: qcom,gcc-sdm845
+ enum:
+ - qcom,gcc-sdm670
+ - qcom,gcc-sdm845
clocks:
- items:
- - description: Board XO source
- - description: Board active XO source
- - description: Sleep clock source
- - description: PCIE 0 Pipe clock source
- - description: PCIE 1 Pipe clock source
+ minItems: 3
+ maxItems: 5
clock-names:
- items:
- - const: bi_tcxo
- - const: bi_tcxo_ao
- - const: sleep_clk
- - const: pcie_0_pipe_clk
- - const: pcie_1_pipe_clk
+ minItems: 3
+ maxItems: 5
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
+ power-domains:
maxItems: 1
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,gcc-sdm670
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+ clock-names:
+ items:
+ - const: bi_tcxo
+ - const: bi_tcxo_ao
+ - const: sleep_clk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,gcc-sdm845
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+ - description: PCIE 0 Pipe clock source
+ - description: PCIE 1 Pipe clock source
+ clock-names:
+ items:
+ - const: bi_tcxo
+ - const: bi_tcxo_ao
+ - const: sleep_clk
+ - const: pcie_0_pipe_clk
+ - const: pcie_1_pipe_clk
+
+unevaluatedProperties: false
examples:
# Example for GCC for SDM845:
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml
index b0d1c65aa354..13ffa16e0833 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx55.yaml
@@ -35,28 +35,15 @@ properties:
- const: core_bi_pll_test_se # Optional clock
minItems: 2
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml
index 16c4cdc7b4d6..8a1419c4d465 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sdx65.yaml
@@ -20,9 +20,6 @@ properties:
compatible:
const: qcom,gcc-sdx65
- reg:
- maxItems: 1
-
clocks:
items:
- description: Board XO source
@@ -43,25 +40,15 @@ properties:
- const: core_bi_pll_test_se # Optional clock
minItems: 5
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml
index 26050da844d5..bb81a27a1b16 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6115.yaml
@@ -30,32 +30,15 @@ properties:
- const: bi_tcxo
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml
index ab12b391effc..03e84e15815c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6125.yaml
@@ -30,32 +30,15 @@ properties:
- const: bi_tcxo
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml
index 20926cd8293e..cbe98c01c085 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm6350.yaml
@@ -32,32 +32,15 @@ properties:
- const: bi_tcxo_ao
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml
index 12766a866625..0333ccb07d8d 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml
@@ -31,32 +31,15 @@ properties:
- const: bi_tcxo
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml
index 80bd6caf5bc9..4e2a9cac0a91 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8250.yaml
@@ -31,32 +31,15 @@ properties:
- const: bi_tcxo
- const: sleep_clk
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
- protected-clocks:
- description:
- Protected clock specifier list as per common clock binding.
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml
index 1122700dcc2b..3edbeca70a9c 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8350.yaml
@@ -54,28 +54,15 @@ properties:
- const: usb3_uni_phy_sec_gcc_usb30_pipe_clk # Optional clock
minItems: 2
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- clocks
- clock-names
- - reg
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
index 58d98a766de6..102ce6862e24 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gcc-sm8450.yaml
@@ -46,28 +46,15 @@ properties:
- const: usb3_phy_wrapper_gcc_usb30_pipe_clk # Optional clock
minItems: 2
- '#clock-cells':
- const: 1
-
- '#reset-cells':
- const: 1
-
- '#power-domain-cells':
- const: 1
-
- reg:
- maxItems: 1
-
required:
- compatible
- - reg
- clocks
- clock-names
- - '#clock-cells'
- - '#reset-cells'
- - '#power-domain-cells'
-additionalProperties: false
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/clock/qcom,gpucc-sm8350.yaml b/Documentation/devicetree/bindings/clock/qcom,gpucc-sm8350.yaml
new file mode 100644
index 000000000000..0a0546c079a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,gpucc-sm8350.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,gpucc-sm8350.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Graphics Clock & Reset Controller Binding
+
+maintainers:
+ - Robert Foss <robert.foss@linaro.org>
+
+description: |
+ Qualcomm graphics clock control module which supports the clocks, resets and
+ power domains on Qualcomm SoCs.
+
+ See also:
+ dt-bindings/clock/qcom,gpucc-sm8350.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sm8350-gpucc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: GPLL0 main branch source
+ - description: GPLL0 div branch source
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ '#power-domain-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - '#reset-cells'
+ - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8350.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ clock-controller@3d90000 {
+ compatible = "qcom,sm8350-gpucc";
+ reg = <0 0x03d90000 0 0x9000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&gcc GCC_GPU_GPLL0_CLK_SRC>,
+ <&gcc GCC_GPU_GPLL0_DIV_CLK_SRC>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
index 9ebcb1943b0a..a7d0af1bd9e0 100644
--- a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
@@ -17,6 +17,7 @@ description: |
dt-bindings/clock/qcom,gpucc-sdm845.h
dt-bindings/clock/qcom,gpucc-sc7180.h
dt-bindings/clock/qcom,gpucc-sc7280.h
+ dt-bindings/clock/qcom,gpucc-sc8280xp.h
dt-bindings/clock/qcom,gpucc-sm6350.h
dt-bindings/clock/qcom,gpucc-sm8150.h
dt-bindings/clock/qcom,gpucc-sm8250.h
@@ -28,6 +29,7 @@ properties:
- qcom,sc7180-gpucc
- qcom,sc7280-gpucc
- qcom,sc8180x-gpucc
+ - qcom,sc8280xp-gpucc
- qcom,sm6350-gpucc
- qcom,sm8150-gpucc
- qcom,sm8250-gpucc
diff --git a/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml b/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml
index 32e87014bb55..03faab5b6a41 100644
--- a/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,mmcc.yaml
@@ -31,30 +31,12 @@ properties:
- qcom,mmcc-sdm660
clocks:
- items:
- - description: Board XO source
- - description: Board sleep source
- - description: Global PLL 0 clock
- - description: DSI phy instance 0 dsi clock
- - description: DSI phy instance 0 byte clock
- - description: DSI phy instance 1 dsi clock
- - description: DSI phy instance 1 byte clock
- - description: HDMI phy PLL clock
- - description: DisplayPort phy PLL vco clock
- - description: DisplayPort phy PLL link clock
+ minItems: 8
+ maxItems: 10
clock-names:
- items:
- - const: xo
- - const: sleep
- - const: gpll0
- - const: dsi0dsi
- - const: dsi0byte
- - const: dsi1dsi
- - const: dsi1byte
- - const: hdmipll
- - const: dpvco
- - const: dplink
+ minItems: 8
+ maxItems: 10
'#clock-cells':
const: 1
@@ -85,16 +67,179 @@ required:
additionalProperties: false
-if:
- properties:
- compatible:
- contains:
- const: qcom,mmcc-msm8998
-
-then:
- required:
- - clocks
- - clock-names
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,mmcc-apq8064
+ - qcom,mmcc-msm8960
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board PXO source
+ - description: PLL 3 clock
+ - description: PLL 3 Vote clock
+ - description: DSI phy instance 1 dsi clock
+ - description: DSI phy instance 1 byte clock
+ - description: DSI phy instance 2 dsi clock
+ - description: DSI phy instance 2 byte clock
+ - description: HDMI phy PLL clock
+
+ clock-names:
+ items:
+ - const: pxo
+ - const: pll3
+ - const: pll8_vote
+ - const: dsi1pll
+ - const: dsi1pllbyte
+ - const: dsi2pll
+ - const: dsi2pllbyte
+ - const: hdmipll
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,mmcc-msm8994
+ - qcom,mmcc-msm8998
+ - qcom,mmcc-sdm630
+ - qcom,mmcc-sdm660
+ then:
+ required:
+ - clocks
+ - clock-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,mmcc-msm8994
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Global PLL 0 clock
+ - description: MMSS NoC AHB clock
+ - description: GFX3D clock
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+ - description: DSI phy instance 1 dsi clock
+ - description: DSI phy instance 1 byte clock
+ - description: HDMI phy PLL clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: gpll0
+ - const: mmssnoc_ahb
+ - const: oxili_gfx3d_clk_src
+ - const: dsi0pll
+ - const: dsi0pllbyte
+ - const: dsi1pll
+ - const: dsi1pllbyte
+ - const: hdmipll
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,mmcc-msm8996
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Global PLL 0 clock
+ - description: MMSS NoC AHB clock
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+ - description: DSI phy instance 1 dsi clock
+ - description: DSI phy instance 1 byte clock
+ - description: HDMI phy PLL clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: gpll0
+ - const: gcc_mmss_noc_cfg_ahb_clk
+ - const: dsi0pll
+ - const: dsi0pllbyte
+ - const: dsi1pll
+ - const: dsi1pllbyte
+ - const: hdmipll
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,mmcc-msm8998
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Global PLL 0 clock
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+ - description: DSI phy instance 1 dsi clock
+ - description: DSI phy instance 1 byte clock
+ - description: HDMI phy PLL clock
+ - description: DisplayPort phy PLL link clock
+ - description: DisplayPort phy PLL vco clock
+ - description: Test clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: gpll0
+ - const: dsi0dsi
+ - const: dsi0byte
+ - const: dsi1dsi
+ - const: dsi1byte
+ - const: hdmipll
+ - const: dplink
+ - const: dpvco
+ - const: core_bi_pll_test_se
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,mmcc-sdm630
+ - qcom,mmcc-sdm660
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board sleep source
+ - description: Global PLL 0 clock
+ - description: Global PLL 0 DIV clock
+ - description: DSI phy instance 0 dsi clock
+ - description: DSI phy instance 0 byte clock
+ - description: DSI phy instance 1 dsi clock
+ - description: DSI phy instance 1 byte clock
+ - description: DisplayPort phy PLL link clock
+ - description: DisplayPort phy PLL vco clock
+
+ clock-names:
+ items:
+ - const: xo
+ - const: sleep_clk
+ - const: gpll0
+ - const: gpll0_div
+ - const: dsi0pll
+ - const: dsi0pllbyte
+ - const: dsi1pll
+ - const: dsi1pllbyte
+ - const: dp_link_2x_clk_divsel_five
+ - const: dp_vco_divided_clk_src_mux
examples:
# Example for MMCC for MSM8960:
diff --git a/Documentation/devicetree/bindings/clock/qcom,msm8996-apcc.yaml b/Documentation/devicetree/bindings/clock/qcom,msm8996-apcc.yaml
index a20cb10636dd..c4971234fef8 100644
--- a/Documentation/devicetree/bindings/clock/qcom,msm8996-apcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,msm8996-apcc.yaml
@@ -26,22 +26,18 @@ properties:
clocks:
items:
- - description: Primary PLL clock for power cluster (little)
- - description: Primary PLL clock for perf cluster (big)
- - description: Alternate PLL clock for power cluster (little)
- - description: Alternate PLL clock for perf cluster (big)
+ - description: XO source
clock-names:
items:
- - const: pwrcl_pll
- - const: perfcl_pll
- - const: pwrcl_alt_pll
- - const: perfcl_alt_pll
+ - const: xo
required:
- compatible
- reg
- '#clock-cells'
+ - clocks
+ - clock-names
additionalProperties: false
@@ -51,4 +47,7 @@ examples:
compatible = "qcom,msm8996-apcc";
reg = <0x6400000 0x90000>;
#clock-cells = <1>;
+
+ clocks = <&xo_board>;
+ clock-names = "xo";
};
diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml b/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml
index 9d296b89a8d0..2a95bf8664f9 100644
--- a/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml
@@ -29,6 +29,7 @@ properties:
- qcom,rpmcc-mdm9607
- qcom,rpmcc-msm8226
- qcom,rpmcc-msm8660
+ - qcom,rpmcc-msm8909
- qcom,rpmcc-msm8916
- qcom,rpmcc-msm8936
- qcom,rpmcc-msm8953
@@ -43,21 +44,93 @@ properties:
- qcom,rpmcc-sdm660
- qcom,rpmcc-sm6115
- qcom,rpmcc-sm6125
+ - qcom,rpmcc-sm6375
- const: qcom,rpmcc
'#clock-cells':
const: 1
clocks:
- maxItems: 1
+ minItems: 1
+ maxItems: 2
clock-names:
- const: xo
+ minItems: 1
+ maxItems: 2
required:
- compatible
- '#clock-cells'
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,rpmcc-apq8060
+ - qcom,rpmcc-ipq806x
+ - qcom,rpmcc-msm8660
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: pxo clock
+
+ clock-names:
+ items:
+ - const: pxo
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,rpmcc-apq8064
+ then:
+ properties:
+ clocks:
+ items:
+ - description: pxo clock
+ - description: cxo clock
+
+ clock-names:
+ items:
+ - const: pxo
+ - const: cxo
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,rpmcc-mdm9607
+ - qcom,rpmcc-msm8226
+ - qcom,rpmcc-msm8916
+ - qcom,rpmcc-msm8936
+ - qcom,rpmcc-msm8953
+ - qcom,rpmcc-msm8974
+ - qcom,rpmcc-msm8976
+ - qcom,rpmcc-msm8992
+ - qcom,rpmcc-msm8994
+ - qcom,rpmcc-msm8996
+ - qcom,rpmcc-msm8998
+ - qcom,rpmcc-qcm2290
+ - qcom,rpmcc-qcs404
+ - qcom,rpmcc-sdm660
+ - qcom,rpmcc-sm6115
+ - qcom,rpmcc-sm6125
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: xo clock
+
+ clock-names:
+ items:
+ - const: xo
+
additionalProperties: false
examples:
@@ -73,3 +146,13 @@ examples:
};
};
};
+
+ - |
+ rpm {
+ clock-controller {
+ compatible = "qcom,rpmcc-ipq806x", "qcom,rpmcc";
+ #clock-cells = <1>;
+ clocks = <&pxo_board>;
+ clock-names = "pxo";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml b/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
index 8fcaf418f84a..437a34b930e3 100644
--- a/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
@@ -21,6 +21,7 @@ properties:
- qcom,sc7280-rpmh-clk
- qcom,sc8180x-rpmh-clk
- qcom,sc8280xp-rpmh-clk
+ - qcom,sdm670-rpmh-clk
- qcom,sdm845-rpmh-clk
- qcom,sdx55-rpmh-clk
- qcom,sdx65-rpmh-clk
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
index 47028d7b98e4..633887dc2f8a 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscc.yaml
@@ -36,13 +36,11 @@ properties:
items:
- description: LPASS qdsp6ss register
- description: LPASS top-cc register
- - description: LPASS cc register
reg-names:
items:
- const: qdsp6ss
- const: top_cc
- - const: cc
required:
- compatible
@@ -59,8 +57,8 @@ examples:
#include <dt-bindings/clock/qcom,lpass-sc7280.h>
clock-controller@3000000 {
compatible = "qcom,sc7280-lpasscc";
- reg = <0x03000000 0x40>, <0x03c04000 0x4>, <0x03389000 0x24>;
- reg-names = "qdsp6ss", "top_cc", "cc";
+ reg = <0x03000000 0x40>, <0x03c04000 0x4>;
+ reg-names = "qdsp6ss", "top_cc";
clocks = <&gcc GCC_CFG_NOC_LPASS_CLK>;
clock-names = "iface";
#clock-cells = <1>;
diff --git a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml
index bad9135489de..f50e284e5f46 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sc7280-lpasscorecc.yaml
@@ -22,6 +22,8 @@ properties:
clock-names: true
+ reg: true
+
compatible:
enum:
- qcom,sc7280-lpassaoncc
@@ -38,8 +40,14 @@ properties:
'#power-domain-cells':
const: 1
- reg:
- maxItems: 1
+ '#reset-cells':
+ const: 1
+
+ qcom,adsp-pil-mode:
+ description:
+ Indicates if the LPASS would be brought out of reset using
+ peripheral loader.
+ type: boolean
required:
- compatible
@@ -69,6 +77,11 @@ allOf:
items:
- const: bi_tcxo
- const: lpass_aon_cc_main_rcg_clk_src
+
+ reg:
+ items:
+ - description: lpass core cc register
+ - description: lpass audio csr register
- if:
properties:
compatible:
@@ -90,6 +103,8 @@ allOf:
- const: bi_tcxo_ao
- const: iface
+ reg:
+ maxItems: 1
- if:
properties:
compatible:
@@ -108,6 +123,8 @@ allOf:
items:
- const: bi_tcxo
+ reg:
+ maxItems: 1
examples:
- |
#include <dt-bindings/clock/qcom,rpmh.h>
@@ -116,13 +133,15 @@ examples:
#include <dt-bindings/clock/qcom,lpasscorecc-sc7280.h>
lpass_audiocc: clock-controller@3300000 {
compatible = "qcom,sc7280-lpassaudiocc";
- reg = <0x3300000 0x30000>;
+ reg = <0x3300000 0x30000>,
+ <0x32a9000 0x1000>;
clocks = <&rpmhcc RPMH_CXO_CLK>,
<&lpass_aon LPASS_AON_CC_MAIN_RCG_CLK_SRC>;
clock-names = "bi_tcxo", "lpass_aon_cc_main_rcg_clk_src";
power-domains = <&lpass_aon LPASS_AON_CC_LPASS_AUDIO_HM_GDSC>;
#clock-cells = <1>;
#power-domain-cells = <1>;
+ #reset-cells = <1>;
};
- |
@@ -165,6 +184,7 @@ examples:
clocks = <&rpmhcc RPMH_CXO_CLK>, <&rpmhcc RPMH_CXO_CLK_A>,
<&lpasscore LPASS_CORE_CC_CORE_CLK>;
clock-names = "bi_tcxo", "bi_tcxo_ao","iface";
+ qcom,adsp-pil-mode;
#clock-cells = <1>;
#power-domain-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml
new file mode 100644
index 000000000000..6660ff16ad1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6115-dispcc.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm6115-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock Controller for SM6115
+
+maintainers:
+ - Bjorn Andersson <andersson@kernel.org>
+
+description: |
+ Qualcomm display clock control module which supports the clocks and
+ power domains on SM6115.
+
+ See also:
+ include/dt-bindings/clock/qcom,sm6115-dispcc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sm6115-dispcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board sleep clock
+ - description: Byte clock from DSI PHY0
+ - description: Pixel clock from DSI PHY0
+ - description: GPLL0 DISP DIV clock from GCC
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ '#power-domain-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - '#reset-cells'
+ - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/clock/qcom,gcc-sm6115.h>
+ clock-controller@5f00000 {
+ compatible = "qcom,sm6115-dispcc";
+ reg = <0x5f00000 0x20000>;
+ clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+ <&sleep_clk>,
+ <&dsi0_phy 0>,
+ <&dsi0_phy 1>,
+ <&gcc GCC_DISP_GPLL0_DIV_CLK_SRC>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
new file mode 100644
index 000000000000..3c573e1a1257
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm6375-gcc.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm6375-gcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Global Clock & Reset Controller Binding for SM6375
+
+maintainers:
+ - Konrad Dybcio <konrad.dybcio@somainline.org>
+
+description: |
+ Qualcomm global clock control module which supports the clocks, resets and
+ power domains on SM6375
+
+ See also:
+ - dt-bindings/clock/qcom,sm6375-gcc.h
+
+allOf:
+ - $ref: qcom,gcc.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm6375-gcc
+
+ clocks:
+ items:
+ - description: Board XO source
+ - description: Board XO Active-Only source
+ - description: Sleep clock source
+
+required:
+ - compatible
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+ clock-controller@1400000 {
+ compatible = "qcom,sm6375-gcc";
+ reg = <0x01400000 0x1f0000>;
+ clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
+ <&rpmcc RPM_SMD_XO_A_CLK_SRC>,
+ <&sleep_clk>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
new file mode 100644
index 000000000000..268f4c6ae0ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-camcc.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8450-camcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Clock & Reset Controller Binding for SM8450
+
+maintainers:
+ - Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
+
+description: |
+ Qualcomm camera clock control module which supports the clocks, resets and
+ power domains on SM8450.
+
+ See also include/dt-bindings/clock/qcom,sm8450-camcc.h
+
+properties:
+ compatible:
+ const: qcom,sm8450-camcc
+
+ clocks:
+ items:
+ - description: Camera AHB clock from GCC
+ - description: Board XO source
+ - description: Board active XO source
+ - description: Sleep clock source
+
+ power-domains:
+ maxItems: 1
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ '#power-domain-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - power-domains
+ - required-opps
+ - '#clock-cells'
+ - '#reset-cells'
+ - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8450.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ clock-controller@ade0000 {
+ compatible = "qcom,sm8450-camcc";
+ reg = <0xade0000 0x20000>;
+ clocks = <&gcc GCC_CAMERA_AHB_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&sleep_clk>;
+ power-domains = <&rpmhpd SM8450_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml
new file mode 100644
index 000000000000..1cc2457f8208
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8450-dispcc.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,sm8450-dispcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display Clock & Reset Controller for SM8450
+
+maintainers:
+ - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
+
+description: |
+ Qualcomm display clock control module which supports the clocks, resets and
+ power domains on SM8450.
+
+ See also:
+ include/dt-bindings/clock/qcom,sm8450-dispcc.h
+
+properties:
+ compatible:
+ enum:
+ - qcom,sm8450-dispcc
+
+ clocks:
+ minItems: 3
+ items:
+ - description: Board XO source
+ - description: Board Always On XO source
+ - description: Display's AHB clock
+ - description: sleep clock
+ - description: Byte clock from DSI PHY0
+ - description: Pixel clock from DSI PHY0
+ - description: Byte clock from DSI PHY1
+ - description: Pixel clock from DSI PHY1
+ - description: Link clock from DP PHY0
+ - description: VCO DIV clock from DP PHY0
+ - description: Link clock from DP PHY1
+ - description: VCO DIV clock from DP PHY1
+ - description: Link clock from DP PHY2
+ - description: VCO DIV clock from DP PHY2
+ - description: Link clock from DP PHY3
+ - description: VCO DIV clock from DP PHY3
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+ '#power-domain-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ power-domains:
+ description:
+ A phandle and PM domain specifier for the MMCX power domain.
+ maxItems: 1
+
+ required-opps:
+ description:
+ A phandle to an OPP node describing required MMCX performance point.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+ - '#reset-cells'
+ - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8450.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ clock-controller@af00000 {
+ compatible = "qcom,sm8450-dispcc";
+ reg = <0x0af00000 0x10000>;
+ clocks = <&rpmhcc RPMH_CXO_CLK>,
+ <&rpmhcc RPMH_CXO_CLK_A>,
+ <&gcc GCC_DISP_AHB_CLK>,
+ <&sleep_clk>,
+ <&dsi0_phy 0>,
+ <&dsi0_phy 1>,
+ <&dsi1_phy 0>,
+ <&dsi1_phy 1>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ #power-domain-cells = <1>;
+ power-domains = <&rpmhpd SM8450_MMCX>;
+ required-opps = <&rpmhpd_opp_low_svs>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.yaml b/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.yaml
index 6eaabb4d82ec..81f09df7147e 100644
--- a/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,rcar-usb2-clock-sel.yaml
@@ -47,7 +47,6 @@ properties:
maxItems: 1
clocks:
- minItems: 4
maxItems: 4
clock-names:
@@ -64,7 +63,6 @@ properties:
maxItems: 1
resets:
- minItems: 2
maxItems: 2
reset-names:
diff --git a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
index 8880b834f264..487f74cdc749 100644
--- a/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,rzg2l-cpg.yaml
@@ -24,7 +24,7 @@ description: |
properties:
compatible:
enum:
- - renesas,r9a07g043-cpg # RZ/G2UL{Type-1,Type-2}
+ - renesas,r9a07g043-cpg # RZ/G2UL{Type-1,Type-2} and RZ/Five
- renesas,r9a07g044-cpg # RZ/G2{L,LC}
- renesas,r9a07g054-cpg # RZ/V2L
- renesas,r9a09g011-cpg # RZ/V2M
@@ -45,10 +45,9 @@ properties:
description: |
- For CPG core clocks, the two clock specifier cells must be "CPG_CORE"
and a core clock reference, as defined in
- <dt-bindings/clock/r9a0*-cpg.h>
+ <dt-bindings/clock/r9a0*-cpg.h>,
- For module clocks, the two clock specifier cells must be "CPG_MOD" and
- a module number, as defined in the <dt-bindings/clock/r9a07g0*-cpg.h> or
- <dt-bindings/clock/r9a09g011-cpg.h>.
+ a module number, as defined in <dt-bindings/clock/r9a0*-cpg.h>.
const: 2
'#power-domain-cells':
@@ -62,7 +61,7 @@ properties:
'#reset-cells':
description:
The single reset specifier cell must be the module number, as defined in
- the <dt-bindings/clock/r9a07g0*-cpg.h> or <dt-bindings/clock/r9a09g011-cpg.h>.
+ <dt-bindings/clock/r9a0*-cpg.h>.
const: 1
required:
diff --git a/Documentation/devicetree/bindings/clock/renesas,versaclock7.yaml b/Documentation/devicetree/bindings/clock/renesas,versaclock7.yaml
new file mode 100644
index 000000000000..8d4eb4475fc8
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,versaclock7.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,versaclock7.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas Versaclock7 Programmable Clock Device Tree Bindings
+
+maintainers:
+ - Alex Helms <alexander.helms.jy@renesas.com>
+
+description: |
+ Renesas Versaclock7 is a family of configurable clock generator and
+ jitter attenuator ICs with fractional and integer dividers.
+
+properties:
+ '#clock-cells':
+ const: 1
+
+ compatible:
+ enum:
+ - renesas,rc21008a
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: External crystal or oscillator
+
+ clock-names:
+ items:
+ - const: xin
+
+required:
+ - '#clock-cells'
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ vc7_xin: clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <49152000>;
+ };
+
+ i2c@0 {
+ reg = <0x0 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vc7: clock-controller@9 {
+ compatible = "renesas,rc21008a";
+ reg = <0x9>;
+ #clock-cells = <1>;
+ clocks = <&vc7_xin>;
+ clock-names = "xin";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,px30-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,px30-cru.yaml
index 3eec381c7cf5..0f0f64b6f8cb 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,px30-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,px30-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,px30-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.yaml
index 1376230fede6..ba5b45464315 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3036-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rk3036-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt
deleted file mode 100644
index 6f8744fd301b..000000000000
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-* Rockchip RK3126/RK3128 Clock and Reset Unit
-
-The RK3126/RK3128 clock controller generates and supplies clock to various
-controllers within the SoC and also implements a reset controller for SoC
-peripherals.
-
-Required Properties:
-
-- compatible: should be "rockchip,rk3126-cru" or "rockchip,rk3128-cru"
- "rockchip,rk3126-cru" - controller compatible with RK3126 SoC.
- "rockchip,rk3128-cru" - controller compatible with RK3128 SoC.
-- reg: physical base address of the controller and length of memory mapped
- region.
-- #clock-cells: should be 1.
-- #reset-cells: should be 1.
-
-Optional Properties:
-
-- rockchip,grf: phandle to the syscon managing the "general register files"
- If missing pll rates are not changeable, due to the missing pll lock status.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. All available clocks are defined as
-preprocessor macros in the dt-bindings/clock/rk3128-cru.h headers and can be
-used in device tree sources. Similar macros exist for the reset sources in
-these files.
-
-External clocks:
-
-There are several clocks that are generated outside the SoC. It is expected
-that they are defined using standard clock bindings with following
-clock-output-names:
- - "xin24m" - crystal input - required,
- - "ext_i2s" - external I2S clock - optional,
- - "gmac_clkin" - external GMAC clock - optional
-
-Example: Clock controller node:
-
- cru: cru@20000000 {
- compatible = "rockchip,rk3128-cru";
- reg = <0x20000000 0x1000>;
- rockchip,grf = <&grf>;
-
- #clock-cells = <1>;
- #reset-cells = <1>;
- };
-
-Example: UART controller node that consumes the clock generated by the clock
- controller:
-
- uart2: serial@20068000 {
- compatible = "rockchip,serial";
- reg = <0x20068000 0x100>;
- interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
- clock-frequency = <24000000>;
- clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
- clock-names = "sclk_uart", "pclk_uart";
- };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml
new file mode 100644
index 000000000000..b3d9c8eca989
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3128-cru.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rk3128-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3126/RK3128 Clock and Reset Unit (CRU)
+
+maintainers:
+ - Elaine Zhang <zhangqing@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description: |
+ The RK3126/RK3128 clock controller generates and supplies clock to various
+ controllers within the SoC and also implements a reset controller for SoC
+ peripherals.
+ Each clock is assigned an identifier and client nodes can use this identifier
+ to specify the clock which they consume. All available clocks are defined as
+ preprocessor macros in the dt-bindings/clock/rk3128-cru.h headers and can be
+ used in device tree sources. Similar macros exist for the reset sources in
+ these files.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3126-cru
+ - rockchip,rk3128-cru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: xin24m
+ - enum:
+ - ext_i2s
+ - gmac_clkin
+ - enum:
+ - ext_i2s
+ - gmac_clkin
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the syscon managing the "general register files" (GRF),
+ if missing pll rates are not changeable, due to the missing pll
+ lock status.
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ cru: clock-controller@20000000 {
+ compatible = "rockchip,rk3128-cru";
+ reg = <0x20000000 0x1000>;
+ rockchip,grf = <&grf>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3228-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3228-cru.yaml
index cf7dc01d9478..1050fff72ade 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3228-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3228-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rk3228-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3288-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3288-cru.yaml
index 96bc05749e1a..6655e97d52e4 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3288-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3288-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rk3288-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3308-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3308-cru.yaml
index 523ee578a586..fec37f5b80f6 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3308-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3308-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rk3308-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.yaml
index adb67877720d..90af242b41c1 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rk3368-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
index 54da1e31ea73..0b758e015ee3 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rk3399-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rk3399-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rv1108-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rv1108-cru.yaml
index 20421c22f184..4611d920b8df 100644
--- a/Documentation/devicetree/bindings/clock/rockchip,rv1108-cru.yaml
+++ b/Documentation/devicetree/bindings/clock/rockchip,rv1108-cru.yaml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0+ OR MIT)
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/rockchip,rv1108-cru.yaml#
diff --git a/Documentation/devicetree/bindings/clock/rockchip,rv1126-cru.yaml b/Documentation/devicetree/bindings/clock/rockchip,rv1126-cru.yaml
new file mode 100644
index 000000000000..0998f8b922bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/rockchip,rv1126-cru.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/rockchip,rv1126-cru.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RV1126 Clock and Reset Unit
+
+maintainers:
+ - Jagan Teki <jagan@edgeble.ai>
+ - Finley Xiao <finley.xiao@rock-chips.com>
+ - Heiko Stuebner <heiko@sntech.de>
+
+description:
+ The RV1126 clock controller generates the clock and also implements a
+ reset controller for SoC peripherals.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rv1126-cru
+ - rockchip,rv1126-pmucru
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: xin24m
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the syscon managing the "general register files" (GRF),
+ if missing pll rates are not changeable, due to the missing pll
+ lock status.
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ cru: clock-controller@ff490000 {
+ compatible = "rockchip,rv1126-cru";
+ reg = <0xff490000 0x1000>;
+ rockchip,grf = <&grf>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml
index 5073e569a47f..006d33a9e0f1 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml
@@ -33,6 +33,7 @@ properties:
enum:
- samsung,exynos7885-cmu-top
- samsung,exynos7885-cmu-core
+ - samsung,exynos7885-cmu-fsys
- samsung,exynos7885-cmu-peri
clocks:
@@ -92,6 +93,32 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynos7885-cmu-fsys
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_FSYS bus clock (from CMU_TOP)
+ - description: MMC_CARD clock (from CMU_TOP)
+ - description: MMC_EMBD clock (from CMU_TOP)
+ - description: MMC_SDIO clock (from CMU_TOP)
+ - description: USB30DRD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_fsys_bus
+ - const: dout_fsys_mmc_card
+ - const: dout_fsys_mmc_embd
+ - const: dout_fsys_mmc_sdio
+ - const: dout_fsys_usb30drd
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynos7885-cmu-peri
then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
index aa11815ad3a3..141cf173f87d 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml
@@ -33,10 +33,13 @@ properties:
enum:
- samsung,exynos850-cmu-top
- samsung,exynos850-cmu-apm
+ - samsung,exynos850-cmu-aud
- samsung,exynos850-cmu-cmgp
- samsung,exynos850-cmu-core
- samsung,exynos850-cmu-dpu
- samsung,exynos850-cmu-hsi
+ - samsung,exynos850-cmu-is
+ - samsung,exynos850-cmu-mfcmscl
- samsung,exynos850-cmu-peri
clocks:
@@ -92,6 +95,24 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynos850-cmu-aud
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: AUD clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_aud
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynos850-cmu-cmgp
then:
@@ -176,6 +197,54 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynos850-cmu-is
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_IS bus clock (from CMU_TOP)
+ - description: Image Texture Processing core clock (from CMU_TOP)
+ - description: Visual Recognition Accelerator clock (from CMU_TOP)
+ - description: Geometric Distortion Correction clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_is_bus
+ - const: dout_is_itp
+ - const: dout_is_vra
+ - const: dout_is_gdc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos850-cmu-mfcmscl
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: Multi-Format Codec clock (from CMU_TOP)
+ - description: Memory to Memory Scaler clock (from CMU_TOP)
+ - description: Multi-Channel Scaler clock (from CMU_TOP)
+ - description: JPEG codec clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_mfcmscl_mfc
+ - const: dout_mfcmscl_m2m
+ - const: dout_mfcmscl_mcsc
+ - const: dout_mfcmscl_jpeg
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynos850-cmu-peri
then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
index eafc715d2d02..2ab4642679c0 100644
--- a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml
@@ -35,6 +35,8 @@ properties:
- samsung,exynosautov9-cmu-top
- samsung,exynosautov9-cmu-busmc
- samsung,exynosautov9-cmu-core
+ - samsung,exynosautov9-cmu-fsys0
+ - samsung,exynosautov9-cmu-fsys1
- samsung,exynosautov9-cmu-fsys2
- samsung,exynosautov9-cmu-peric0
- samsung,exynosautov9-cmu-peric1
@@ -111,6 +113,48 @@ allOf:
properties:
compatible:
contains:
+ const: samsung,exynosautov9-cmu-fsys0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_FSYS0 bus clock (from CMU_TOP)
+ - description: CMU_FSYS0 pcie clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_clkcmu_fsys0_bus
+ - const: dout_clkcmu_fsys0_pcie
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynosautov9-cmu-fsys1
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (26 MHz)
+ - description: CMU_FSYS1 bus clock (from CMU_TOP)
+ - description: CMU_FSYS1 mmc card clock (from CMU_TOP)
+ - description: CMU_FSYS1 usb clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: dout_clkcmu_fsys1_bus
+ - const: dout_clkcmu_fsys1_mmc_card
+ - const: dout_clkcmu_fsys1_usbdrd
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: samsung,exynosautov9-cmu-fsys2
then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml b/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
index 9248bfc16d48..d5296e6053a1 100644
--- a/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
+++ b/Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
@@ -34,7 +34,6 @@ properties:
const: 1
clock-output-names:
- minItems: 3
maxItems: 3
description: Names for AP, CP and BT clocks.
diff --git a/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml b/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml
index 47e1ab08c95d..785a12797a42 100644
--- a/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml
+++ b/Documentation/devicetree/bindings/clock/sprd,sc9863a-clk.yaml
@@ -5,7 +5,7 @@
$id: "http://devicetree.org/schemas/clock/sprd,sc9863a-clk.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: SC9863A Clock Control Unit Device Tree Bindings
+title: SC9863A Clock Control Unit
maintainers:
- Orson Zhai <orsonzhai@gmail.com>
diff --git a/Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml b/Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml
new file mode 100644
index 000000000000..5f747b0471cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sprd,ums512-clk.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2022 Unisoc Inc.
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/clock/sprd,ums512-clk.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: UMS512 Soc clock controller
+
+maintainers:
+ - Orson Zhai <orsonzhai@gmail.com>
+ - Baolin Wang <baolin.wang7@gmail.com>
+ - Chunyan Zhang <zhang.lyra@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - sprd,ums512-apahb-gate
+ - sprd,ums512-ap-clk
+ - sprd,ums512-aonapb-clk
+ - sprd,ums512-pmu-gate
+ - sprd,ums512-g0-pll
+ - sprd,ums512-g2-pll
+ - sprd,ums512-g3-pll
+ - sprd,ums512-gc-pll
+ - sprd,ums512-aon-gate
+ - sprd,ums512-audcpapb-gate
+ - sprd,ums512-audcpahb-gate
+ - sprd,ums512-gpu-clk
+ - sprd,ums512-mm-clk
+ - sprd,ums512-mm-gate-clk
+ - sprd,ums512-apapb-gate
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+ description: |
+ The input parent clock(s) phandle for the clock, only list
+ fixed clocks which are declared in devicetree.
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: ext-26m
+ - const: ext-32k
+ - const: ext-4m
+ - const: rco-100m
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ ap_clk: clock-controller@20200000 {
+ compatible = "sprd,ums512-ap-clk";
+ reg = <0x20200000 0x1000>;
+ clocks = <&ext_26m>;
+ clock-names = "ext-26m";
+ #clock-cells = <1>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
index f8c474227807..242fe922b035 100644
--- a/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
+++ b/Documentation/devicetree/bindings/clock/st,stm32mp1-rcc.yaml
@@ -78,6 +78,7 @@ if:
contains:
enum:
- st,stm32mp1-rcc-secure
+ - st,stm32mp13-rcc
then:
properties:
clocks:
diff --git a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
index 55a18939bddd..c918075405ba 100644
--- a/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
+++ b/Documentation/devicetree/bindings/clock/st/st,flexgen.txt
@@ -78,7 +78,7 @@ Required properties:
- #clock-cells : from common clock binding; shall be set to 1 (multiple clock
outputs).
-- clocks : must be set to the parent's phandle. it's could be output clocks of
+- clocks : must be set to the parent's phandle. it could be output clocks of
a quadsfs or/and a pll or/and clk_sysin (up to 7 clocks)
- clock-output-names : List of strings used to name the clock outputs.
diff --git a/Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml b/Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml
new file mode 100644
index 000000000000..bcc14088220a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/sunplus,sp7021-clkc.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/sunplus,sp7021-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 SoC Clock Controller
+
+maintainers:
+ - Qin Jian <qinjian@cqplus1.com>
+
+properties:
+ compatible:
+ const: sunplus,sp7021-clkc
+
+ reg:
+ maxItems: 3
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ extclk: osc0 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <27000000>;
+ clock-output-names = "extclk";
+ };
+
+ clkc: clock-controller@9c000004 {
+ compatible = "sunplus,sp7021-clkc";
+ reg = <0x9c000004 0x28>,
+ <0x9c000200 0x44>,
+ <0x9c000268 0x08>;
+ clocks = <&extclk>;
+ #clock-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/clock/ti/davinci/pll.txt b/Documentation/devicetree/bindings/clock/ti/davinci/pll.txt
index 36998e184821..c9894538315b 100644
--- a/Documentation/devicetree/bindings/clock/ti/davinci/pll.txt
+++ b/Documentation/devicetree/bindings/clock/ti/davinci/pll.txt
@@ -15,7 +15,7 @@ Required properties:
- for "ti,da850-pll1", shall be "clksrc"
Optional properties:
-- ti,clkmode-square-wave: Indicates that the the board is supplying a square
+- ti,clkmode-square-wave: Indicates that the board is supplying a square
wave input on the OSCIN pin instead of using a crystal oscillator.
This property is only valid when compatible = "ti,da850-pll0".
diff --git a/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt b/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
index 21c002d28b9b..68504079f99f 100644
--- a/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
+++ b/Documentation/devicetree/bindings/clock/ti/dra7-atl.txt
@@ -6,7 +6,7 @@ functional clock but can be configured to provide different clocks.
ATL can maintain a clock averages to some desired frequency based on the bws/aws
signals - can compensate the drift between the two ws signal.
-In order to provide the support for ATL and it's output clocks (which can be used
+In order to provide the support for ATL and its output clocks (which can be used
internally within the SoC or external components) two sets of bindings is needed:
Clock tree binding:
diff --git a/Documentation/devicetree/bindings/clock/ti/gate.txt b/Documentation/devicetree/bindings/clock/ti/gate.txt
index b4820b1de4f0..4982615c01b9 100644
--- a/Documentation/devicetree/bindings/clock/ti/gate.txt
+++ b/Documentation/devicetree/bindings/clock/ti/gate.txt
@@ -10,7 +10,7 @@ will be controlled instead and the corresponding hw-ops for
that is used.
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.txt
+[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
[3] Documentation/devicetree/bindings/clock/ti/clockdomain.txt
Required properties:
diff --git a/Documentation/devicetree/bindings/clock/ti/interface.txt b/Documentation/devicetree/bindings/clock/ti/interface.txt
index 94ec77dc3c59..d3eb5ca92a7f 100644
--- a/Documentation/devicetree/bindings/clock/ti/interface.txt
+++ b/Documentation/devicetree/bindings/clock/ti/interface.txt
@@ -9,7 +9,7 @@ companion clock finding (match corresponding functional gate
clock) and hardware autoidle enable / disable.
[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.txt
+[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
Required properties:
- compatible : shall be one of:
diff --git a/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml b/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml
index 7b7300ce96d6..d36558aa39f3 100644
--- a/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml
+++ b/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pipllct.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/toshiba,tmpv770x-pipllct.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Toshiba Visconti5 TMPV770X PLL Controller Device Tree Bindings
+title: Toshiba Visconti5 TMPV770X PLL Controller
maintainers:
- Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
diff --git a/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pismu.yaml b/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pismu.yaml
index ed79f16fe6bc..081f85b1eb88 100644
--- a/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pismu.yaml
+++ b/Documentation/devicetree/bindings/clock/toshiba,tmpv770x-pismu.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/clock/toshiba,tmpv770x-pismu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Toshiba Visconti5 TMPV770x SMU controller Device Tree Bindings
+title: Toshiba Visconti5 TMPV770x SMU controller
maintainers:
- Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
diff --git a/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
new file mode 100644
index 000000000000..634b7b964606
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/xlnx,clocking-wizard.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/clock/xlnx,clocking-wizard.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Xilinx clocking wizard
+
+maintainers:
+ - Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
+
+description:
+ The clocking wizard is a soft ip clocking block of Xilinx versal. It
+ reads required input clock frequencies from the devicetree and acts as clock
+ clock output.
+
+properties:
+ compatible:
+ enum:
+ - xlnx,clocking-wizard
+ - xlnx,clocking-wizard-v5.2
+ - xlnx,clocking-wizard-v6.0
+
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+ clocks:
+ items:
+ - description: clock input
+ - description: axi clock
+
+ clock-names:
+ items:
+ - const: clk_in1
+ - const: s_axi_aclk
+
+
+ xlnx,speed-grade:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2, 3]
+ description:
+ Speed grade of the device. Higher the speed grade faster is the FPGA device.
+
+ xlnx,nr-outputs:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 8
+ description:
+ Number of outputs.
+
+required:
+ - compatible
+ - reg
+ - "#clock-cells"
+ - clocks
+ - clock-names
+ - xlnx,speed-grade
+ - xlnx,nr-outputs
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@b0000000 {
+ compatible = "xlnx,clocking-wizard";
+ reg = <0xb0000000 0x10000>;
+ #clock-cells = <1>;
+ xlnx,speed-grade = <1>;
+ xlnx,nr-outputs = <6>;
+ clock-names = "clk_in1", "s_axi_aclk";
+ clocks = <&clkc 15>, <&clkc 15>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 0420fa563532..ae515651fc6b 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -263,11 +263,11 @@ examples:
# Micro-USB connector with HS lines routed via controller (MUIC).
- |
muic-max77843 {
- usb_con1: connector {
- compatible = "usb-b-connector";
- label = "micro-USB";
- type = "micro";
- };
+ usb_con1: connector {
+ compatible = "usb-b-connector";
+ label = "micro-USB";
+ type = "micro";
+ };
};
# USB-C connector attached to CC controller (s2mm005), HS lines routed
@@ -275,34 +275,34 @@ examples:
# DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
- |
ccic: s2mm005 {
- usb_con2: connector {
- compatible = "usb-c-connector";
- label = "USB-C";
+ usb_con2: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
- port@0 {
- reg = <0>;
- usb_con_hs: endpoint {
- remote-endpoint = <&max77865_usbc_hs>;
- };
- };
- port@1 {
- reg = <1>;
- usb_con_ss: endpoint {
- remote-endpoint = <&usbdrd_phy_ss>;
- };
- };
- port@2 {
- reg = <2>;
- usb_con_sbu: endpoint {
- remote-endpoint = <&dp_aux>;
+ port@0 {
+ reg = <0>;
+ usb_con_hs: endpoint {
+ remote-endpoint = <&max77865_usbc_hs>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ usb_con_ss: endpoint {
+ remote-endpoint = <&usbdrd_phy_ss>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ usb_con_sbu: endpoint {
+ remote-endpoint = <&dp_aux>;
+ };
+ };
};
- };
};
- };
};
# USB-C connector attached to a typec port controller(ptn5110), which has
@@ -310,16 +310,16 @@ examples:
- |
#include <dt-bindings/usb/pd.h>
typec: ptn5110 {
- usb_con3: connector {
- compatible = "usb-c-connector";
- label = "USB-C";
- power-role = "dual";
- try-power-role = "sink";
- source-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)>;
- sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)
- PDO_VAR(5000, 12000, 2000)>;
- op-sink-microwatt = <10000000>;
- };
+ usb_con3: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ power-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)>;
+ sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)
+ PDO_VAR(5000, 12000, 2000)>;
+ op-sink-microwatt = <10000000>;
+ };
};
# USB-C connector attached to SoC and USB3 typec port controller(hd3ss3220)
@@ -332,20 +332,20 @@ examples:
data-role = "dual";
ports {
- #address-cells = <1>;
- #size-cells = <0>;
- port@0 {
- reg = <0>;
- hs_ep: endpoint {
- remote-endpoint = <&usb3_hs_ep>;
- };
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ hs_ep: endpoint {
+ remote-endpoint = <&usb3_hs_ep>;
};
- port@1 {
- reg = <1>;
- ss_ep: endpoint {
- remote-endpoint = <&hd3ss3220_in_ep>;
- };
+ };
+ port@1 {
+ reg = <1>;
+ ss_ep: endpoint {
+ remote-endpoint = <&hd3ss3220_in_ep>;
};
+ };
};
};
@@ -354,12 +354,12 @@ examples:
#include <dt-bindings/gpio/gpio.h>
usb {
- connector {
- compatible = "gpio-usb-b-connector", "usb-b-connector";
- type = "micro";
- id-gpios = <&pio 12 GPIO_ACTIVE_HIGH>;
- vbus-supply = <&usb_p0_vbus>;
- };
+ connector {
+ compatible = "gpio-usb-b-connector", "usb-b-connector";
+ type = "micro";
+ id-gpios = <&pio 12 GPIO_ACTIVE_HIGH>;
+ vbus-supply = <&usb_p0_vbus>;
+ };
};
# Micro-USB connector with HS lines routed via controller (MUIC) and MHL
@@ -367,27 +367,27 @@ examples:
# mobile phone
- |
muic-max77843 {
- usb_con4: connector {
- compatible = "samsung,usb-connector-11pin", "usb-b-connector";
- label = "micro-USB";
- type = "micro";
+ usb_con4: connector {
+ compatible = "samsung,usb-connector-11pin", "usb-b-connector";
+ label = "micro-USB";
+ type = "micro";
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
- port@0 {
- reg = <0>;
- muic_to_usb: endpoint {
- remote-endpoint = <&usb_to_muic>;
- };
- };
- port@3 {
- reg = <3>;
- usb_con_mhl: endpoint {
- remote-endpoint = <&sii8620_mhl>;
+ port@0 {
+ reg = <0>;
+ muic_to_usb: endpoint {
+ remote-endpoint = <&usb_to_muic>;
+ };
+ };
+ port@3 {
+ reg = <3>;
+ usb_con_mhl: endpoint {
+ remote-endpoint = <&sii8620_mhl>;
+ };
+ };
};
- };
};
- };
};
diff --git a/Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml b/Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml
new file mode 100644
index 000000000000..4e0b2d2b303e
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/ti,am62-ecap-capture.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/counter/ti,am62-ecap-capture.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments Enhanced Capture (eCAP) Module
+
+maintainers:
+ - Julien Panis <jpanis@baylibre.com>
+
+description: |
+ The eCAP module resources can be used to capture timestamps
+ on input signal events (falling/rising edges).
+
+properties:
+ compatible:
+ const: ti,am62-ecap-capture
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: fck
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/soc/ti,sci_pm_domain.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ capture@23100000 { /* eCAP in capture mode on am62x */
+ compatible = "ti,am62-ecap-capture";
+ reg = <0x00 0x23100000 0x00 0x100>;
+ interrupts = <GIC_SPI 113 IRQ_TYPE_EDGE_RISING>;
+ power-domains = <&k3_pds 51 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&k3_clks 51 0>;
+ clock-names = "fck";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
index 2f1b8b6852a0..24fa3d87a40b 100644
--- a/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-qcom-hw.yaml
@@ -25,6 +25,7 @@ properties:
- description: v2 of CPUFREQ HW (EPSS)
items:
- enum:
+ - qcom,sm6375-cpufreq-epss
- qcom,sm8250-cpufreq-epss
- const: qcom,cpufreq-epss
diff --git a/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml b/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
index a9a776da5505..a11e1b867379 100644
--- a/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
+++ b/Documentation/devicetree/bindings/cpufreq/qcom-cpufreq-nvmem.yaml
@@ -22,6 +22,13 @@ select:
compatible:
contains:
enum:
+ - qcom,apq8064
+ - qcom,apq8096
+ - qcom,ipq8064
+ - qcom,msm8939
+ - qcom,msm8960
+ - qcom,msm8974
+ - qcom,msm8996
- qcom,qcs404
required:
- compatible
@@ -63,8 +70,8 @@ additionalProperties: true
examples:
- |
/ {
- model = "Qualcomm Technologies, Inc. QCS404";
- compatible = "qcom,qcs404";
+ model = "Qualcomm Technologies, Inc. QCS404 EVB 1000";
+ compatible = "qcom,qcs404-evb-1000", "qcom,qcs404-evb", "qcom,qcs404";
#address-cells = <2>;
#size-cells = <2>;
diff --git a/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml b/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml
index dedc99e34ebc..0401c11da8d9 100644
--- a/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml
+++ b/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/crypto/allwinner,sun4i-a10-crypto.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Security System Device Tree Bindings
+title: Allwinner A10 Security System
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/crypto/aspeed,ast2500-hace.yaml b/Documentation/devicetree/bindings/crypto/aspeed,ast2500-hace.yaml
new file mode 100644
index 000000000000..a772d232de09
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/aspeed,ast2500-hace.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/aspeed,ast2500-hace.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASPEED HACE hash and crypto Hardware Accelerator Engines
+
+maintainers:
+ - Neal Liu <neal_liu@aspeedtech.com>
+
+description: |
+ The Hash and Crypto Engine (HACE) is designed to accelerate the throughput
+ of hash data digest, encryption, and decryption. Basically, HACE can be
+ divided into two independently engines - Hash Engine and Crypto Engine.
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2500-hace
+ - aspeed,ast2600-hace
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/ast2600-clock.h>
+ hace: crypto@1e6d0000 {
+ compatible = "aspeed,ast2600-hace";
+ reg = <0x1e6d0000 0x200>;
+ interrupts = <4>;
+ clocks = <&syscon ASPEED_CLK_GATE_YCLK>;
+ resets = <&syscon ASPEED_RESET_HACE>;
+ };
diff --git a/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-aes.yaml b/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-aes.yaml
index ee2c099981b2..fedd8be56ad6 100644
--- a/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-aes.yaml
+++ b/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-aes.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/crypto/intel,keembay-ocs-aes.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Keem Bay OCS AES Device Tree Bindings
+title: Intel Keem Bay OCS AES
maintainers:
- Daniele Alessandrelli <daniele.alessandrelli@intel.com>
diff --git a/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-ecc.yaml b/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-ecc.yaml
index a3c16451b1ad..2bb95247b64f 100644
--- a/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-ecc.yaml
+++ b/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-ecc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/crypto/intel,keembay-ocs-ecc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Keem Bay OCS ECC Device Tree Bindings
+title: Intel Keem Bay OCS ECC
maintainers:
- Daniele Alessandrelli <daniele.alessandrelli@intel.com>
diff --git a/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-hcu.yaml b/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-hcu.yaml
index acb92706d280..46e2853ab8f4 100644
--- a/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-hcu.yaml
+++ b/Documentation/devicetree/bindings/crypto/intel,keembay-ocs-hcu.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/crypto/intel,keembay-ocs-hcu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Keem Bay OCS HCU Device Tree Bindings
+title: Intel Keem Bay OCS HCU
maintainers:
- Declan Murphy <declan.murphy@intel.com>
diff --git a/Documentation/devicetree/bindings/crypto/samsung-slimsss.yaml b/Documentation/devicetree/bindings/crypto/samsung-slimsss.yaml
index 676950bb7b37..5b31891c97fe 100644
--- a/Documentation/devicetree/bindings/crypto/samsung-slimsss.yaml
+++ b/Documentation/devicetree/bindings/crypto/samsung-slimsss.yaml
@@ -24,7 +24,6 @@ properties:
maxItems: 1
clocks:
- minItems: 2
maxItems: 2
clock-names:
diff --git a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
index 02f47c2e7998..0c15fefb6671 100644
--- a/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
+++ b/Documentation/devicetree/bindings/crypto/ti,sa2ul.yaml
@@ -35,8 +35,6 @@ properties:
- const: rx1
- const: rx2
- dma-coherent: true
-
"#address-cells":
const: 2
@@ -72,16 +70,6 @@ required:
- dmas
- dma-names
-if:
- properties:
- compatible:
- enum:
- - ti,j721e-sa2ul
- - ti,am654-sa2ul
-then:
- required:
- - dma-coherent
-
additionalProperties: false
examples:
@@ -95,5 +83,4 @@ examples:
dmas = <&main_udmap 0xc000>, <&main_udmap 0x4000>,
<&main_udmap 0x4001>;
dma-names = "tx", "rx1", "rx2";
- dma-coherent;
};
diff --git a/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml b/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
index 55dd6e3d270d..9e8fbd02b150 100644
--- a/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
+++ b/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/crypto/xlnx,zynqmp-aes.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx ZynqMP AES-GCM Hardware Accelerator Device Tree Bindings
+title: Xilinx ZynqMP AES-GCM Hardware Accelerator
maintainers:
- Kalyani Akula <kalyani.akula@xilinx.com>
diff --git a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt b/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
deleted file mode 100644
index bcaa2c08ac11..000000000000
--- a/Documentation/devicetree/bindings/devfreq/exynos-bus.txt
+++ /dev/null
@@ -1,488 +0,0 @@
-* Generic Exynos Bus frequency device
-
-The Samsung Exynos SoC has many buses for data transfer between DRAM
-and sub-blocks in SoC. Most Exynos SoCs share the common architecture
-for buses. Generally, each bus of Exynos SoC includes a source clock
-and a power line, which are able to change the clock frequency
-of the bus in runtime. To monitor the usage of each bus in runtime,
-the driver uses the PPMU (Platform Performance Monitoring Unit), which
-is able to measure the current load of sub-blocks.
-
-The Exynos SoC includes the various sub-blocks which have the each AXI bus.
-The each AXI bus has the owned source clock but, has not the only owned
-power line. The power line might be shared among one more sub-blocks.
-So, we can divide into two type of device as the role of each sub-block.
-There are two type of bus devices as following:
-- parent bus device
-- passive bus device
-
-Basically, parent and passive bus device share the same power line.
-The parent bus device can only change the voltage of shared power line
-and the rest bus devices (passive bus device) depend on the decision of
-the parent bus device. If there are three blocks which share the VDD_xxx
-power line, Only one block should be parent device and then the rest blocks
-should depend on the parent device as passive device.
-
- VDD_xxx |--- A block (parent)
- |--- B block (passive)
- |--- C block (passive)
-
-There are a little different composition among Exynos SoC because each Exynos
-SoC has different sub-blocks. Therefore, such difference should be specified
-in devicetree file instead of each device driver. In result, this driver
-is able to support the bus frequency for all Exynos SoCs.
-
-Required properties for all bus devices:
-- compatible: Should be "samsung,exynos-bus".
-- clock-names : the name of clock used by the bus, "bus".
-- clocks : phandles for clock specified in "clock-names" property.
-- operating-points-v2: the OPP table including frequency/voltage information
- to support DVFS (Dynamic Voltage/Frequency Scaling) feature.
-
-Required properties only for parent bus device:
-- vdd-supply: the regulator to provide the buses with the voltage.
-- devfreq-events: the devfreq-event device to monitor the current utilization
- of buses.
-
-Required properties only for passive bus device:
-- devfreq: the parent bus device.
-
-Optional properties only for parent bus device:
-- exynos,saturation-ratio: the percentage value which is used to calibrate
- the performance count against total cycle count.
-
-Optional properties for the interconnect functionality (QoS frequency
-constraints):
-- #interconnect-cells: should be 0.
-- interconnects: as documented in ../interconnect.txt, describes a path at the
- higher level interconnects used by this interconnect provider.
- If this interconnect provider is directly linked to a top level interconnect
- provider the property contains only one phandle. The provider extends
- the interconnect graph by linking its node to a node registered by provider
- pointed to by first phandle in the 'interconnects' property.
-
-- samsung,data-clock-ratio: ratio of the data throughput in B/s to minimum data
- clock frequency in Hz, default value is 8 when this property is missing.
-
-Detailed correlation between sub-blocks and power line according to Exynos SoC:
-- In case of Exynos3250, there are two power line as following:
- VDD_MIF |--- DMC
-
- VDD_INT |--- LEFTBUS (parent device)
- |--- PERIL
- |--- MFC
- |--- G3D
- |--- RIGHTBUS
- |--- PERIR
- |--- FSYS
- |--- LCD0
- |--- PERIR
- |--- ISP
- |--- CAM
-
-- In case of Exynos4210, there is one power line as following:
- VDD_INT |--- DMC (parent device)
- |--- LEFTBUS
- |--- PERIL
- |--- MFC(L)
- |--- G3D
- |--- TV
- |--- LCD0
- |--- RIGHTBUS
- |--- PERIR
- |--- MFC(R)
- |--- CAM
- |--- FSYS
- |--- GPS
- |--- LCD0
- |--- LCD1
-
-- In case of Exynos4x12, there are two power line as following:
- VDD_MIF |--- DMC
-
- VDD_INT |--- LEFTBUS (parent device)
- |--- PERIL
- |--- MFC(L)
- |--- G3D
- |--- TV
- |--- IMAGE
- |--- RIGHTBUS
- |--- PERIR
- |--- MFC(R)
- |--- CAM
- |--- FSYS
- |--- GPS
- |--- LCD0
- |--- ISP
-
-- In case of Exynos5422, there are two power line as following:
- VDD_MIF |--- DREX 0 (parent device, DRAM EXpress controller)
- |--- DREX 1
-
- VDD_INT |--- NoC_Core (parent device)
- |--- G2D
- |--- G3D
- |--- DISP1
- |--- NoC_WCORE
- |--- GSCL
- |--- MSCL
- |--- ISP
- |--- MFC
- |--- GEN
- |--- PERIS
- |--- PERIC
- |--- FSYS
- |--- FSYS2
-
-- In case of Exynos5433, there is VDD_INT power line as following:
- VDD_INT |--- G2D (parent device)
- |--- MSCL
- |--- GSCL
- |--- JPEG
- |--- MFC
- |--- HEVC
- |--- BUS0
- |--- BUS1
- |--- BUS2
- |--- PERIS (Fixed clock rate)
- |--- PERIC (Fixed clock rate)
- |--- FSYS (Fixed clock rate)
-
-Example 1:
- Show the AXI buses of Exynos3250 SoC. Exynos3250 divides the buses to
- power line (regulator). The MIF (Memory Interface) AXI bus is used to
- transfer data between DRAM and CPU and uses the VDD_MIF regulator.
-
- - MIF (Memory Interface) block
- : VDD_MIF |--- DMC (Dynamic Memory Controller)
-
- - INT (Internal) block
- : VDD_INT |--- LEFTBUS (parent device)
- |--- PERIL
- |--- MFC
- |--- G3D
- |--- RIGHTBUS
- |--- FSYS
- |--- LCD0
- |--- PERIR
- |--- ISP
- |--- CAM
-
- - MIF bus's frequency/voltage table
- -----------------------
- |Lv| Freq | Voltage |
- -----------------------
- |L1| 50000 |800000 |
- |L2| 100000 |800000 |
- |L3| 134000 |800000 |
- |L4| 200000 |825000 |
- |L5| 400000 |875000 |
- -----------------------
-
- - INT bus's frequency/voltage table
- ----------------------------------------------------------
- |Block|LEFTBUS|RIGHTBUS|MCUISP |ISP |PERIL ||VDD_INT |
- | name| |LCD0 | | | || |
- | | |FSYS | | | || |
- | | |MFC | | | || |
- ----------------------------------------------------------
- |Mode |*parent|passive |passive|passive|passive|| |
- ----------------------------------------------------------
- |Lv |Frequency ||Voltage |
- ----------------------------------------------------------
- |L1 |50000 |50000 |50000 |50000 |50000 ||900000 |
- |L2 |80000 |80000 |80000 |80000 |80000 ||900000 |
- |L3 |100000 |100000 |100000 |100000 |100000 ||1000000 |
- |L4 |134000 |134000 |200000 |200000 | ||1000000 |
- |L5 |200000 |200000 |400000 |300000 | ||1000000 |
- ----------------------------------------------------------
-
-Example 2:
- The bus of DMC (Dynamic Memory Controller) block in exynos3250.dtsi
- is listed below:
-
- bus_dmc: bus_dmc {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu_dmc CLK_DIV_DMC>;
- clock-names = "bus";
- operating-points-v2 = <&bus_dmc_opp_table>;
- status = "disabled";
- };
-
- bus_dmc_opp_table: opp_table1 {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-50000000 {
- opp-hz = /bits/ 64 <50000000>;
- opp-microvolt = <800000>;
- };
- opp-100000000 {
- opp-hz = /bits/ 64 <100000000>;
- opp-microvolt = <800000>;
- };
- opp-134000000 {
- opp-hz = /bits/ 64 <134000000>;
- opp-microvolt = <800000>;
- };
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- opp-microvolt = <825000>;
- };
- opp-400000000 {
- opp-hz = /bits/ 64 <400000000>;
- opp-microvolt = <875000>;
- };
- };
-
- bus_leftbus: bus_leftbus {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_GDL>;
- clock-names = "bus";
- operating-points-v2 = <&bus_leftbus_opp_table>;
- status = "disabled";
- };
-
- bus_rightbus: bus_rightbus {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_GDR>;
- clock-names = "bus";
- operating-points-v2 = <&bus_leftbus_opp_table>;
- status = "disabled";
- };
-
- bus_lcd0: bus_lcd0 {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_ACLK_160>;
- clock-names = "bus";
- operating-points-v2 = <&bus_leftbus_opp_table>;
- status = "disabled";
- };
-
- bus_fsys: bus_fsys {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_ACLK_200>;
- clock-names = "bus";
- operating-points-v2 = <&bus_leftbus_opp_table>;
- status = "disabled";
- };
-
- bus_mcuisp: bus_mcuisp {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_ACLK_400_MCUISP>;
- clock-names = "bus";
- operating-points-v2 = <&bus_mcuisp_opp_table>;
- status = "disabled";
- };
-
- bus_isp: bus_isp {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_ACLK_266>;
- clock-names = "bus";
- operating-points-v2 = <&bus_isp_opp_table>;
- status = "disabled";
- };
-
- bus_peril: bus_peril {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_DIV_ACLK_100>;
- clock-names = "bus";
- operating-points-v2 = <&bus_peril_opp_table>;
- status = "disabled";
- };
-
- bus_mfc: bus_mfc {
- compatible = "samsung,exynos-bus";
- clocks = <&cmu CLK_SCLK_MFC>;
- clock-names = "bus";
- operating-points-v2 = <&bus_leftbus_opp_table>;
- status = "disabled";
- };
-
- bus_leftbus_opp_table: opp_table1 {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-50000000 {
- opp-hz = /bits/ 64 <50000000>;
- opp-microvolt = <900000>;
- };
- opp-80000000 {
- opp-hz = /bits/ 64 <80000000>;
- opp-microvolt = <900000>;
- };
- opp-100000000 {
- opp-hz = /bits/ 64 <100000000>;
- opp-microvolt = <1000000>;
- };
- opp-134000000 {
- opp-hz = /bits/ 64 <134000000>;
- opp-microvolt = <1000000>;
- };
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- opp-microvolt = <1000000>;
- };
- };
-
- bus_mcuisp_opp_table: opp_table2 {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-50000000 {
- opp-hz = /bits/ 64 <50000000>;
- };
- opp-80000000 {
- opp-hz = /bits/ 64 <80000000>;
- };
- opp-100000000 {
- opp-hz = /bits/ 64 <100000000>;
- };
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- };
- opp-400000000 {
- opp-hz = /bits/ 64 <400000000>;
- };
- };
-
- bus_isp_opp_table: opp_table3 {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-50000000 {
- opp-hz = /bits/ 64 <50000000>;
- };
- opp-80000000 {
- opp-hz = /bits/ 64 <80000000>;
- };
- opp-100000000 {
- opp-hz = /bits/ 64 <100000000>;
- };
- opp-200000000 {
- opp-hz = /bits/ 64 <200000000>;
- };
- opp-300000000 {
- opp-hz = /bits/ 64 <300000000>;
- };
- };
-
- bus_peril_opp_table: opp_table4 {
- compatible = "operating-points-v2";
- opp-shared;
-
- opp-50000000 {
- opp-hz = /bits/ 64 <50000000>;
- };
- opp-80000000 {
- opp-hz = /bits/ 64 <80000000>;
- };
- opp-100000000 {
- opp-hz = /bits/ 64 <100000000>;
- };
- };
-
-
- Usage case to handle the frequency and voltage of bus on runtime
- in exynos3250-rinato.dts is listed below:
-
- &bus_dmc {
- devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
- vdd-supply = <&buck1_reg>; /* VDD_MIF */
- status = "okay";
- };
-
- &bus_leftbus {
- devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
- vdd-supply = <&buck3_reg>;
- status = "okay";
- };
-
- &bus_rightbus {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
- &bus_lcd0 {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
- &bus_fsys {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
- &bus_mcuisp {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
- &bus_isp {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
- &bus_peril {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
- &bus_mfc {
- devfreq = <&bus_leftbus>;
- status = "okay";
- };
-
-Example 3:
- An interconnect path "bus_display -- bus_leftbus -- bus_dmc" on
- Exynos4412 SoC with video mixer as an interconnect consumer device.
-
- soc {
- bus_dmc: bus_dmc {
- compatible = "samsung,exynos-bus";
- clocks = <&clock CLK_DIV_DMC>;
- clock-names = "bus";
- operating-points-v2 = <&bus_dmc_opp_table>;
- samsung,data-clock-ratio = <4>;
- #interconnect-cells = <0>;
- };
-
- bus_leftbus: bus_leftbus {
- compatible = "samsung,exynos-bus";
- clocks = <&clock CLK_DIV_GDL>;
- clock-names = "bus";
- operating-points-v2 = <&bus_leftbus_opp_table>;
- #interconnect-cells = <0>;
- interconnects = <&bus_dmc>;
- };
-
- bus_display: bus_display {
- compatible = "samsung,exynos-bus";
- clocks = <&clock CLK_ACLK160>;
- clock-names = "bus";
- operating-points-v2 = <&bus_display_opp_table>;
- #interconnect-cells = <0>;
- interconnects = <&bus_leftbus &bus_dmc>;
- };
-
- bus_dmc_opp_table: opp_table1 {
- compatible = "operating-points-v2";
- /* ... */
- }
-
- bus_leftbus_opp_table: opp_table3 {
- compatible = "operating-points-v2";
- /* ... */
- };
-
- bus_display_opp_table: opp_table4 {
- compatible = "operating-points-v2";
- /* .. */
- };
-
- &mixer {
- compatible = "samsung,exynos4212-mixer";
- interconnects = <&bus_display &bus_dmc>;
- /* ... */
- };
- };
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml
index 3d8ea3c2d8dd..ba06d1857b7d 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-backend.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-backend.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Display Engine Backend Device Tree Bindings
+title: Allwinner A10 Display Engine Backend
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml
index c9c346e6228e..e6088f379f70 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-engine.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-engine.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Display Engine Pipeline Device Tree Bindings
+title: Allwinner A10 Display Engine Pipeline
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
index 055157fbf3bf..98e8240a05bd 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-display-frontend.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-display-frontend.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Display Engine Frontend Device Tree Bindings
+title: Allwinner A10 Display Engine Frontend
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml
index 7f11452539f4..55703caacb9c 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-hdmi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-hdmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 HDMI Controller Device Tree Bindings
+title: Allwinner A10 HDMI Controller
description: |
The HDMI Encoder supports the HDMI video and audio outputs, and does
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
index 4a92a4c7dcd7..724d93b9193b 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tcon.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-tcon.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Timings Controller (TCON) Device Tree Bindings
+title: Allwinner A10 Timings Controller (TCON)
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -233,6 +233,7 @@ allOf:
- allwinner,sun8i-a83t-tcon-lcd
- allwinner,sun8i-v3s-tcon
- allwinner,sun9i-a80-tcon-lcd
+ - allwinner,sun20i-d1-tcon-lcd
then:
properties:
@@ -252,6 +253,7 @@ allOf:
- allwinner,sun8i-a83t-tcon-tv
- allwinner,sun8i-r40-tcon-tv
- allwinner,sun9i-a80-tcon-tv
+ - allwinner,sun20i-d1-tcon-tv
then:
properties:
@@ -278,6 +280,7 @@ allOf:
- allwinner,sun9i-a80-tcon-lcd
- allwinner,sun4i-a10-tcon
- allwinner,sun8i-a83t-tcon-lcd
+ - allwinner,sun20i-d1-tcon-lcd
then:
required:
@@ -294,6 +297,7 @@ allOf:
- allwinner,sun8i-a23-tcon
- allwinner,sun8i-a33-tcon
- allwinner,sun8i-a83t-tcon-lcd
+ - allwinner,sun20i-d1-tcon-lcd
then:
properties:
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml
index afc0ed799e0e..c39e90a5945f 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun4i-a10-tv-encoder.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun4i-a10-tv-encoder.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 TV Encoder Device Tree Bindings
+title: Allwinner A10 TV Encoder
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
index 71cce5687580..895506d93f4c 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-drc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun6i-a31-drc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 Dynamic Range Controller Device Tree Bindings
+title: Allwinner A31 Dynamic Range Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
index bf0bdf54e5f9..7910831fa4b8 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun6i-a31-mipi-dsi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun6i-a31-mipi-dsi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 MIPI-DSI Controller Device Tree Bindings
+title: Allwinner A31 MIPI-DSI Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
index cb243bc58ef7..b75c1ec686ad 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun8i-a83t-de2-mixer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner Display Engine 2.0 Mixer Device Tree Bindings
+title: Allwinner Display Engine 2.0 Mixer
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
index 4951b5ef5c6a..60fd927b5a06 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-dw-hdmi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun8i-a83t-dw-hdmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A83t DWC HDMI TX Encoder Device Tree Bindings
+title: Allwinner A83t DWC HDMI TX Encoder
description: |
The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml
index a97366aaf924..1b47f3d99a78 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-hdmi-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun8i-a83t-hdmi-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A83t HDMI PHY Device Tree Bindings
+title: Allwinner A83t HDMI PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml
index 845e226d7aff..7d849c4095a3 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-r40-tcon-top.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun8i-r40-tcon-top.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner R40 TCON TOP Device Tree Bindings
+title: Allwinner R40 TCON TOP
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml b/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml
index 637372ec4614..193afee2c3c1 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun9i-a80-deu.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/allwinner,sun9i-a80-deu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 Detail Enhancement Unit Device Tree Bindings
+title: Allwinner A80 Detail Enhancement Unit
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
index 2e208d2fc98f..7cdffdb131ac 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic specific extensions to the Synopsys Designware HDMI Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
allOf:
- $ref: /schemas/sound/name-prefix.yaml#
diff --git a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
index 047fd69e0377..6655a93b1874 100644
--- a/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-vpu.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson Display Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The Amlogic Meson Display controller is composed of several components
diff --git a/Documentation/devicetree/bindings/display/arm,komeda.yaml b/Documentation/devicetree/bindings/display/arm,komeda.yaml
index 9f4aade97f10..3ad3eef89ca8 100644
--- a/Documentation/devicetree/bindings/display/arm,komeda.yaml
+++ b/Documentation/devicetree/bindings/display/arm,komeda.yaml
@@ -58,6 +58,7 @@ properties:
patternProperties:
'^pipeline@[01]$':
type: object
+ additionalProperties: false
description:
clocks
diff --git a/Documentation/devicetree/bindings/display/arm,pl11x.yaml b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
index b545c6d20325..6cc9045e5c68 100644
--- a/Documentation/devicetree/bindings/display/arm,pl11x.yaml
+++ b/Documentation/devicetree/bindings/display/arm,pl11x.yaml
@@ -159,25 +159,12 @@ examples:
};
panel {
- compatible = "arm,rtsm-display", "panel-dpi";
- power-supply = <&vcc_supply>;
+ compatible = "arm,rtsm-display";
port {
clcd_panel: endpoint {
remote-endpoint = <&clcd_pads>;
};
};
-
- panel-timing {
- clock-frequency = <25175000>;
- hactive = <640>;
- hback-porch = <40>;
- hfront-porch = <24>;
- hsync-len = <96>;
- vactive = <480>;
- vback-porch = <32>;
- vfront-porch = <11>;
- vsync-len = <2>;
- };
};
...
diff --git a/Documentation/devicetree/bindings/display/atmel,lcdc.txt b/Documentation/devicetree/bindings/display/atmel,lcdc.txt
index acb5a0132127..b5e355ada2fa 100644
--- a/Documentation/devicetree/bindings/display/atmel,lcdc.txt
+++ b/Documentation/devicetree/bindings/display/atmel,lcdc.txt
@@ -9,7 +9,6 @@ Required properties:
"atmel,at91sam9g45-lcdc" ,
"atmel,at91sam9g45es-lcdc" ,
"atmel,at91sam9rl-lcdc" ,
- "atmel,at32ap-lcdc"
- reg : Should contain 1 register ranges(address and length).
Can contain an additional register range(address and length)
for fixed framebuffer memory. Useful for dedicated memories.
diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
index a9d34dd7bbc5..5b35adf34c7b 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/brcm,bcm2711-hdmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM2711 HDMI Controller Device Tree Bindings
+title: Broadcom BCM2711 HDMI Controller
maintainers:
- Eric Anholt <eric@anholt.net>
diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml
index f08a01dfedf3..5bbe81862c8f 100644
--- a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.yaml
@@ -117,23 +117,21 @@ properties:
ports:
description:
- The ADV7511(W)/13 has two video ports and one audio port. This node
- models their connections as documented in
- Documentation/devicetree/bindings/media/video-interfaces.txt
- Documentation/devicetree/bindings/graph.txt
- type: object
+ The ADV7511(W)/13 has two video ports and one audio port.
+ $ref: /schemas/graph.yaml#/properties/ports
+
properties:
port@0:
description: Video port for the RGB or YUV input.
- type: object
+ $ref: /schemas/graph.yaml#/properties/port
port@1:
description: Video port for the HDMI output.
- type: object
+ $ref: /schemas/graph.yaml#/properties/port
port@2:
description: Audio port for the HDMI output.
- type: object
+ $ref: /schemas/graph.yaml#/properties/port
# adi,input-colorspace and adi,input-clock are required except in
# "rgb 1x" and "yuv444 1x" modes, in which case they must not be
diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
index f36209137c8a..987aa83c2649 100644
--- a/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7533.yaml
@@ -91,25 +91,23 @@ properties:
ports:
description:
- The ADV7533/35 has two video ports and one audio port. This node
- models their connections as documented in
- Documentation/devicetree/bindings/media/video-interfaces.txt
- Documentation/devicetree/bindings/graph.txt
- type: object
+ The ADV7533/35 has two video ports and one audio port.
+ $ref: /schemas/graph.yaml#/properties/ports
+
properties:
port@0:
description:
Video port for the DSI input. The remote endpoint phandle
should be a reference to a valid mipi_dsi_host_device.
- type: object
+ $ref: /schemas/graph.yaml#/properties/port
port@1:
description: Video port for the HDMI output.
- type: object
+ $ref: /schemas/graph.yaml#/properties/port
port@2:
description: Audio port for the HDMI output.
- type: object
+ $ref: /schemas/graph.yaml#/properties/port
required:
- compatible
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
index 35a48515836e..4590186c4a0b 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7625.yaml
@@ -94,7 +94,22 @@ properties:
$ref: /schemas/graph.yaml#/$defs/port-base
unevaluatedProperties: false
description:
- Video port for MIPI DSI input.
+ MIPI DSI/DPI input.
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ type: object
+ additionalProperties: false
+
+ properties:
+ remote-endpoint: true
+
+ bus-type:
+ enum: [7]
+ default: 1
+
+ data-lanes: true
port@1:
$ref: /schemas/graph.yaml#/properties/port
@@ -143,6 +158,8 @@ examples:
reg = <0>;
anx7625_in: endpoint {
remote-endpoint = <&mipi_dsi>;
+ bus-type = <7>;
+ data-lanes = <0 1 2 3>;
};
};
diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml
index bce96b5b0db0..4a5e5d9d6f90 100644
--- a/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7814.yaml
@@ -8,7 +8,7 @@ title: Analogix ANX7814 SlimPort (Full-HD Transmitter)
maintainers:
- Andrzej Hajda <andrzej.hajda@intel.com>
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
- Robert Foss <robert.foss@linaro.org>
properties:
diff --git a/Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml b/Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml
index 4f0b7c71313c..5fb54375aeb6 100644
--- a/Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/chipone,icn6211.yaml
@@ -24,6 +24,15 @@ properties:
maxItems: 1
description: virtual channel number of a DSI peripheral
+ clock-names:
+ const: refclk
+
+ clocks:
+ maxItems: 1
+ description: |
+ Optional external clock connected to REF_CLK input.
+ The clock rate must be in 10..154 MHz range.
+
enable-gpios:
description: Bridge EN pin, chip is reset when EN is low.
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-ldb.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-ldb.yaml
new file mode 100644
index 000000000000..94543006f5de
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-ldb.yaml
@@ -0,0 +1,173 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8qxp-ldb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qm/qxp LVDS Display Bridge
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ The Freescale i.MX8qm/qxp LVDS Display Bridge(LDB) has two channels.
+
+ The i.MX8qm/qxp LDB is controlled by Control and Status Registers(CSR) module.
+ The CSR module, as a system controller, contains the LDB's configuration
+ registers.
+
+ For i.MX8qxp LDB, each channel supports up to 24bpp parallel input color
+ format and can map the input to VESA or JEIDA standards. The two channels
+ cannot be used simultaneously, that is to say, the user should pick one of
+ them to use. Two LDB channels from two LDB instances can work together in
+ LDB split mode to support a dual link LVDS display. The channel indexes
+ have to be different. Channel0 outputs odd pixels and channel1 outputs
+ even pixels.
+
+ For i.MX8qm LDB, each channel additionally supports up to 30bpp parallel
+ input color format. The two channels can be used simultaneously, either
+ in dual mode or split mode. In dual mode, the two channels output identical
+ data. In split mode, channel0 outputs odd pixels and channel1 outputs even
+ pixels.
+
+ A side note is that i.MX8qm/qxp LDB is officially called pixel mapper in
+ the SoC reference manuals. The pixel mapper uses logic of LDBs embedded in
+ i.MX6qdl/sx SoCs, i.e., it is essentially based on them. To keep the naming
+ consistency, this binding calls it LDB.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-ldb
+ - fsl,imx8qxp-ldb
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ clocks:
+ items:
+ - description: pixel clock
+ - description: bypass clock
+
+ clock-names:
+ items:
+ - const: pixel
+ - const: bypass
+
+ power-domains:
+ maxItems: 1
+
+ fsl,companion-ldb:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ A phandle which points to companion LDB which is used in LDB split mode.
+
+patternProperties:
+ "^channel@[0-1]$":
+ type: object
+ description: Represents a channel of LDB.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg:
+ description: The channel index.
+ enum: [ 0, 1 ]
+
+ phys:
+ description: A phandle to the phy module representing the LVDS PHY.
+ maxItems: 1
+
+ phy-names:
+ const: lvds_phy
+
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Input port of the channel.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output port of the channel.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - reg
+ - phys
+ - phy-names
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+ - clocks
+ - clock-names
+ - power-domains
+ - channel@0
+ - channel@1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8qm-ldb
+ then:
+ properties:
+ fsl,companion-ldb: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ ldb {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx8qxp-ldb";
+ clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_MISC2>,
+ <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_BYPASS>;
+ clock-names = "pixel", "bypass";
+ power-domains = <&pd IMX_SC_R_LVDS_0>;
+
+ channel@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ phys = <&mipi_lvds_0_phy>;
+ phy-names = "lvds_phy";
+
+ port@0 {
+ reg = <0>;
+
+ mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi: endpoint {
+ remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0>;
+ };
+ };
+ };
+
+ channel@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ phys = <&mipi_lvds_0_phy>;
+ phy-names = "lvds_phy";
+
+ port@0 {
+ reg = <0>;
+
+ mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi: endpoint {
+ remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-combiner.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-combiner.yaml
new file mode 100644
index 000000000000..50bae2122183
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-combiner.yaml
@@ -0,0 +1,144 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8qxp-pixel-combiner.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qm/qxp Pixel Combiner
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ The Freescale i.MX8qm/qxp Pixel Combiner takes two output streams from a
+ single display controller and manipulates the two streams to support a number
+ of modes(bypass, pixel combine, YUV444 to YUV422, split_RGB) configured as
+ either one screen, two screens, or virtual screens. The pixel combiner is
+ also responsible for generating some of the control signals for the pixel link
+ output channel.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-pixel-combiner
+ - fsl,imx8qxp-pixel-combiner
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: apb
+
+ power-domains:
+ maxItems: 1
+
+patternProperties:
+ "^channel@[0-1]$":
+ type: object
+ description: Represents a display stream of pixel combiner.
+
+ properties:
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ reg:
+ description: The display stream index.
+ enum: [ 0, 1 ]
+
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Input endpoint of the display stream.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output endpoint of the display stream.
+
+ required:
+ - "#address-cells"
+ - "#size-cells"
+ - reg
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+ - reg
+ - clocks
+ - clock-names
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ pixel-combiner@56020000 {
+ compatible = "fsl,imx8qxp-pixel-combiner";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x56020000 0x10000>;
+ clocks = <&dc0_pixel_combiner_lpcg IMX_LPCG_CLK_4>;
+ clock-names = "apb";
+ power-domains = <&pd IMX_SC_R_DC_0>;
+
+ channel@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ dc0_pixel_combiner_ch0_dc0_dpu_disp0: endpoint {
+ remote-endpoint = <&dc0_dpu_disp0_dc0_pixel_combiner_ch0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dc0_pixel_combiner_ch0_dc0_pixel_link0: endpoint {
+ remote-endpoint = <&dc0_pixel_link0_dc0_pixel_combiner_ch0>;
+ };
+ };
+ };
+
+ channel@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ port@0 {
+ reg = <0>;
+
+ dc0_pixel_combiner_ch1_dc0_dpu_disp1: endpoint {
+ remote-endpoint = <&dc0_dpu_disp1_dc0_pixel_combiner_ch1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ dc0_pixel_combiner_ch1_dc0_pixel_link1: endpoint {
+ remote-endpoint = <&dc0_pixel_link1_dc0_pixel_combiner_ch1>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-link.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-link.yaml
new file mode 100644
index 000000000000..38ecc7926fad
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pixel-link.yaml
@@ -0,0 +1,144 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8qxp-pixel-link.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qm/qxp Display Pixel Link
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ The Freescale i.MX8qm/qxp Display Pixel Link(DPL) forms a standard
+ asynchronous linkage between pixel sources(display controller or
+ camera module) and pixel consumers(imaging or displays).
+ It consists of two distinct functions, a pixel transfer function and a
+ control interface. Multiple pixel channels can exist per one control channel.
+ This binding documentation is only for pixel links whose pixel sources are
+ display controllers.
+
+ The i.MX8qm/qxp Display Pixel Link is accessed via System Controller Unit(SCU)
+ firmware.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-dc-pixel-link
+ - fsl,imx8qxp-dc-pixel-link
+
+ fsl,dc-id:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ u8 value representing the display controller index that the pixel link
+ connects to.
+
+ fsl,dc-stream-id:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ u8 value representing the display controller stream index that the pixel
+ link connects to.
+ enum: [0, 1]
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: The pixel link input port node from upstream video source.
+
+ patternProperties:
+ "^port@[1-4]$":
+ $ref: /schemas/graph.yaml#/properties/port
+ description: The pixel link output port node to downstream bridge.
+
+ required:
+ - port@0
+ - port@1
+ - port@2
+ - port@3
+ - port@4
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8qxp-dc-pixel-link
+ then:
+ properties:
+ fsl,dc-id:
+ const: 0
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8qm-dc-pixel-link
+ then:
+ properties:
+ fsl,dc-id:
+ enum: [0, 1]
+
+required:
+ - compatible
+ - fsl,dc-id
+ - fsl,dc-stream-id
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ dc0-pixel-link0 {
+ compatible = "fsl,imx8qxp-dc-pixel-link";
+ fsl,dc-id = /bits/ 8 <0>;
+ fsl,dc-stream-id = /bits/ 8 <0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* from dc0 pixel combiner channel0 */
+ port@0 {
+ reg = <0>;
+
+ dc0_pixel_link0_dc0_pixel_combiner_ch0: endpoint {
+ remote-endpoint = <&dc0_pixel_combiner_ch0_dc0_pixel_link0>;
+ };
+ };
+
+ /* to PXL2DPIs in MIPI/LVDS combo subsystems */
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ dc0_pixel_link0_mipi_lvds_0_pxl2dpi: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mipi_lvds_0_pxl2dpi_dc0_pixel_link0>;
+ };
+
+ dc0_pixel_link0_mipi_lvds_1_pxl2dpi: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&mipi_lvds_1_pxl2dpi_dc0_pixel_link0>;
+ };
+ };
+
+ /* unused */
+ port@2 {
+ reg = <2>;
+ };
+
+ /* unused */
+ port@3 {
+ reg = <3>;
+ };
+
+ /* to imaging subsystem */
+ port@4 {
+ reg = <4>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml
new file mode 100644
index 000000000000..e4e77fad05f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8qxp-pxl2dpi.yaml
@@ -0,0 +1,108 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/fsl,imx8qxp-pxl2dpi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qxp Pixel Link to Display Pixel Interface
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ The Freescale i.MX8qxp Pixel Link to Display Pixel Interface(PXL2DPI)
+ interfaces the pixel link 36-bit data output and the DSI controller’s
+ MIPI-DPI 24-bit data input, and inputs of LVDS Display Bridge(LDB) module
+ used in LVDS mode, to remap the pixel color codings between those modules.
+ This module is purely combinatorial.
+
+ The i.MX8qxp PXL2DPI is controlled by Control and Status Registers(CSR) module.
+ The CSR module, as a system controller, contains the PXL2DPI's configuration
+ register.
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-pxl2dpi
+
+ fsl,sc-resource:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The SCU resource ID associated with this PXL2DPI instance.
+
+ power-domains:
+ maxItems: 1
+
+ fsl,companion-pxl2dpi:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ A phandle which points to companion PXL2DPI which is used by downstream
+ LVDS Display Bridge(LDB) in split mode.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: The PXL2DPI input port node from pixel link.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: The PXL2DPI output port node to downstream bridge.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - fsl,sc-resource
+ - power-domains
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ pxl2dpi {
+ compatible = "fsl,imx8qxp-pxl2dpi";
+ fsl,sc-resource = <IMX_SC_R_MIPI_0>;
+ power-domains = <&pd IMX_SC_R_MIPI_0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ mipi_lvds_0_pxl2dpi_dc_pixel_link0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dc_pixel_link0_mipi_lvds_0_pxl2dpi>;
+ };
+
+ mipi_lvds_0_pxl2dpi_dc_pixel_link1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&dc_pixel_link1_mipi_lvds_0_pxl2dpi>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi>;
+ };
+
+ mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
index 77f174eee424..b19be0804abe 100644
--- a/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/fsl,ldb.yaml
@@ -24,6 +24,14 @@ properties:
clock-names:
const: ldb
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: ldb
+ - const: lvds
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -56,10 +64,15 @@ examples:
#include <dt-bindings/clock/imx8mp-clock.h>
blk-ctrl {
- bridge {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ bridge@5c {
compatible = "fsl,imx8mp-ldb";
clocks = <&clk IMX8MP_CLK_MEDIA_LDB>;
clock-names = "ldb";
+ reg = <0x5c 0x4>, <0x128 0x4>;
+ reg-names = "ldb", "lvds";
ports {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
index b8219eab4475..89490fdffeb0 100644
--- a/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ingenic,jz4780-hdmi.yaml
@@ -55,7 +55,6 @@ examples:
compatible = "ingenic,jz4780-dw-hdmi";
reg = <0x10180000 0x8000>;
reg-io-width = <4>;
- ddc-i2c-bus = <&i2c4>;
interrupt-parent = <&intc>;
interrupts = <3>;
clocks = <&cgu JZ4780_CLK_AHB0>, <&cgu JZ4780_CLK_HDMI>;
diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml b/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
index c6e81f532215..1b2185be92cd 100644
--- a/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
@@ -8,7 +8,7 @@ title: ITE it66121 HDMI bridge Device Tree Bindings
maintainers:
- Phong LE <ple@baylibre.com>
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The IT66121 is a high-performance and low-power single channel HDMI
diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
index 3a8614e0f627..84aafcbf0919 100644
--- a/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/lvds-codec.yaml
@@ -51,6 +51,7 @@ properties:
properties:
port@0:
$ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description: |
For LVDS encoders, port 0 is the parallel input
For LVDS decoders, port 0 is the LVDS input
diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml
new file mode 100644
index 000000000000..c4bf54397473
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/nxp,tda998x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP TDA998x HDMI transmitter
+
+maintainers:
+ - Russell King <linux@armlinux.org.uk>
+
+properties:
+ compatible:
+ const: nxp,tda998x
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ video-ports:
+ default: 0x230145
+ maximum: 0xffffff
+ description:
+ 24 bits value which defines how the video controller output is wired to
+ the TDA998x input.
+
+ audio-ports:
+ description:
+ Array of 8-bit values, 2 values per DAI (Documentation/sound/soc/dai.rst).
+ The implementation allows one or two DAIs.
+ If two DAIs are defined, they must be of different type.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ minItems: 1
+ items:
+ - description: |
+ The first value defines the DAI type: TDA998x_SPDIF or TDA998x_I2S
+ (see include/dt-bindings/display/tda998x.h).
+ - description:
+ The second value defines the tda998x AP_ENA reg content when the
+ DAI in question is used.
+
+ '#sound-dai-cells':
+ enum: [ 0, 1 ]
+
+ nxp,calib-gpios:
+ maxItems: 1
+ description:
+ Calibration GPIO, which must correspond with the gpio used for the
+ TDA998x interrupt pin.
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Parallel input port
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ type: object
+ description: Parallel input port
+
+ port@1:
+ type: object
+ description: HDMI output port
+
+required:
+ - compatible
+ - reg
+
+oneOf:
+ - required:
+ - port
+ - required:
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/display/tda998x.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tda998x: hdmi-encoder@70 {
+ compatible = "nxp,tda998x";
+ reg = <0x70>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <27 IRQ_TYPE_EDGE_FALLING>;
+ video-ports = <0x230145>;
+
+ #sound-dai-cells = <1>;
+ /* DAI-format / AP_ENA reg value */
+ audio-ports = <TDA998x_SPDIF 0x04>,
+ <TDA998x_I2S 0x03>;
+
+ port {
+ tda998x_in: endpoint {
+ remote-endpoint = <&lcdc_0>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml
index 0c9785c8db51..e3ec697f89e7 100644
--- a/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml
@@ -38,6 +38,9 @@ properties:
clock-names:
maxItems: 2
+ resets:
+ maxItems: 1
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
@@ -67,6 +70,7 @@ required:
- reg
- clocks
- clock-names
+ - resets
- interrupts
- ports
@@ -85,6 +89,7 @@ examples:
clocks = <&cpg CPG_CORE R8A7795_CLK_S0D4>, <&cpg CPG_MOD 729>;
clock-names = "iahb", "isfr";
power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+ resets = <&cpg 729>;
ports {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/bridge/sii902x.txt b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
deleted file mode 100644
index 3bc760cc31cb..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/sii902x.txt
+++ /dev/null
@@ -1,78 +0,0 @@
-sii902x HDMI bridge bindings
-
-Required properties:
- - compatible: "sil,sii9022"
- - reg: i2c address of the bridge
-
-Optional properties:
- - interrupts: describe the interrupt line used to inform the host
- about hotplug events.
- - reset-gpios: OF device-tree gpio specification for RST_N pin.
- - iovcc-supply: I/O Supply Voltage (1.8V or 3.3V)
- - cvcc12-supply: Digital Core Supply Voltage (1.2V)
-
- HDMI audio properties:
- - #sound-dai-cells: <0> or <1>. <0> if only i2s or spdif pin
- is wired, <1> if the both are wired. HDMI audio is
- configured only if this property is found.
- - sil,i2s-data-lanes: Array of up to 4 integers with values of 0-3
- Each integer indicates which i2s pin is connected to which
- audio fifo. The first integer selects i2s audio pin for the
- first audio fifo#0 (HDMI channels 1&2), second for fifo#1
- (HDMI channels 3&4), and so on. There is 4 fifos and 4 i2s
- pins (SD0 - SD3). Any i2s pin can be connected to any fifo,
- but there can be no gaps. E.g. an i2s pin must be mapped to
- fifo#0 and fifo#1 before mapping a channel to fifo#2. Default
- value is <0>, describing SD0 pin beiging routed to hdmi audio
- fifo #0.
- - clocks: phandle and clock specifier for each clock listed in
- the clock-names property
- - clock-names: "mclk"
- Describes SII902x MCLK input. MCLK can be used to produce
- HDMI audio CTS values. This property follows
- Documentation/devicetree/bindings/clock/clock-bindings.txt
- consumer binding.
-
- If HDMI audio is configured the sii902x device becomes an I2S
- and/or spdif audio codec component (e.g a digital audio sink),
- that can be used in configuring a full audio devices with
- simple-card or audio-graph-card binding. See their binding
- documents on how to describe the way the sii902x device is
- connected to the rest of the audio system:
- Documentation/devicetree/bindings/sound/simple-card.yaml
- Documentation/devicetree/bindings/sound/audio-graph-card.yaml
- Note: In case of the audio-graph-card binding the used port
- index should be 3.
-
-Optional subnodes:
- - video input: this subnode can contain a video input port node
- to connect the bridge to a display controller output (See this
- documentation [1]).
-
-[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
-
-Example:
- hdmi-bridge@39 {
- compatible = "sil,sii9022";
- reg = <0x39>;
- reset-gpios = <&pioA 1 0>;
- iovcc-supply = <&v3v3_hdmi>;
- cvcc12-supply = <&v1v2_hdmi>;
-
- #sound-dai-cells = <0>;
- sil,i2s-data-lanes = < 0 1 2 >;
- clocks = <&mclk>;
- clock-names = "mclk";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- bridge_in: endpoint {
- remote-endpoint = <&dc_out>;
- };
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml b/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml
new file mode 100644
index 000000000000..5a69547ad3d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/sil,sii9022.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/sil,sii9022.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Image sii902x HDMI bridge
+
+maintainers:
+ - Boris Brezillon <bbrezillon@kernel.org>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - sil,sii9022-cpi # CEC Programming Interface
+ - sil,sii9022-tpi # Transmitter Programming Interface
+ - const: sil,sii9022
+ - const: sil,sii9022
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+ description: Interrupt line used to inform the host about hotplug events.
+
+ reset-gpios:
+ maxItems: 1
+
+ iovcc-supply:
+ description: I/O Supply Voltage (1.8V or 3.3V)
+
+ cvcc12-supply:
+ description: Digital Core Supply Voltage (1.2V)
+
+ '#sound-dai-cells':
+ enum: [ 0, 1 ]
+ description: |
+ <0> if only I2S or S/PDIF pin is wired,
+ <1> if both are wired.
+ HDMI audio is configured only if this property is found.
+ If HDMI audio is configured, the sii902x device becomes an I2S and/or
+ S/PDIF audio codec component (e.g. a digital audio sink), that can be
+ used in configuring full audio devices with simple-card or
+ audio-graph-card bindings. See their binding documents on how to describe
+ the way the
+ sii902x device is connected to the rest of the audio system:
+ Documentation/devicetree/bindings/sound/simple-card.yaml
+ Documentation/devicetree/bindings/sound/audio-graph-card.yaml
+ Note: In case of the audio-graph-card binding the used port index should
+ be 3.
+
+ sil,i2s-data-lanes:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 4
+ uniqueItems: true
+ items:
+ enum: [ 0, 1, 2, 3 ]
+ description:
+ Each integer indicates which I2S pin is connected to which audio FIFO.
+ The first integer selects the I2S audio pin for the first audio FIFO#0
+ (HDMI channels 1&2), the second for FIFO#1 (HDMI channels 3&4), and so
+ on. There are 4 FIFOs and 4 I2S pins (SD0 - SD3). Any I2S pin can be
+ connected to any FIFO, but there can be no gaps. E.g. an I2S pin must be
+ mapped to FIFO#0 and FIFO#1 before mapping a channel to FIFO#2. The
+ default value is <0>, describing SD0 pin being routed to HDMI audio
+ FIFO#0.
+
+ clocks:
+ maxItems: 1
+ description: MCLK input. MCLK can be used to produce HDMI audio CTS values.
+
+ clock-names:
+ const: mclk
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Parallel RGB input port
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: HDMI output port
+
+ port@3:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Sound input port
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hdmi-bridge@39 {
+ compatible = "sil,sii9022";
+ reg = <0x39>;
+ reset-gpios = <&pioA 1 0>;
+ iovcc-supply = <&v3v3_hdmi>;
+ cvcc12-supply = <&v1v2_hdmi>;
+
+ #sound-dai-cells = <0>;
+ sil,i2s-data-lanes = < 0 1 2 >;
+ clocks = <&mclk>;
+ clock-names = "mclk";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ bridge_in: endpoint {
+ remote-endpoint = <&dc_out>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
index b00246faea57..4b7e54a8f037 100644
--- a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml
@@ -26,7 +26,6 @@ properties:
reg-io-width:
description:
Width (in bytes) of the registers specified by the reg property.
- $ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 4]
default: 1
diff --git a/Documentation/devicetree/bindings/display/bridge/tda998x.txt b/Documentation/devicetree/bindings/display/bridge/tda998x.txt
deleted file mode 100644
index f5a02f61dd36..000000000000
--- a/Documentation/devicetree/bindings/display/bridge/tda998x.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-Device-Tree bindings for the NXP TDA998x HDMI transmitter
-
-Required properties;
- - compatible: must be "nxp,tda998x"
-
- - reg: I2C address
-
-Required node:
- - port: Input port node with endpoint definition, as described
- in Documentation/devicetree/bindings/graph.txt
-
-Optional properties:
- - interrupts: interrupt number and trigger type
- default: polling
-
- - pinctrl-0: pin control group to be used for
- screen plug/unplug interrupt.
-
- - pinctrl-names: must contain a "default" entry.
-
- - video-ports: 24 bits value which defines how the video controller
- output is wired to the TDA998x input - default: <0x230145>
-
- - audio-ports: array of 8-bit values, 2 values per one DAI[1].
- The first value defines the DAI type: TDA998x_SPDIF or TDA998x_I2S[2].
- The second value defines the tda998x AP_ENA reg content when the DAI
- in question is used. The implementation allows one or two DAIs. If two
- DAIs are defined, they must be of different type.
-
- - nxp,calib-gpios: calibration GPIO, which must correspond with the
- gpio used for the TDA998x interrupt pin.
-
-[1] Documentation/sound/soc/dai.rst
-[2] include/dt-bindings/display/tda998x.h
-
-Example:
-
-#include <dt-bindings/display/tda998x.h>
-
- tda998x: hdmi-encoder {
- compatible = "nxp,tda998x";
- reg = <0x70>;
- interrupt-parent = <&gpio0>;
- interrupts = <27 2>; /* falling edge */
- pinctrl-0 = <&pmx_camera>;
- pinctrl-names = "default";
- video-ports = <0x230145>;
-
- #sound-dai-cells = <2>;
- /* DAI-format AP_ENA reg value */
- audio-ports = < TDA998x_SPDIF 0x04
- TDA998x_I2S 0x03>;
-
- };
diff --git a/Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml b/Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml
new file mode 100644
index 000000000000..542193d77cdf
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/ti,dlpc3433.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/ti,dlpc3433.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DLPC3433 MIPI DSI to DMD bridge
+
+maintainers:
+ - Jagan Teki <jagan@amarulasolutions.com>
+ - Christopher Vollo <chris@renewoutreach.org>
+
+description: |
+ TI DLPC3433 is a MIPI DSI based display controller bridge
+ for processing high resolution DMD based projectors.
+
+ It has a flexible configuration of MIPI DSI and DPI signal
+ input that produces a DMD output in RGB565, RGB666, RGB888
+ formats.
+
+ It supports upto 720p resolution with 60 and 120 Hz refresh
+ rates.
+
+properties:
+ compatible:
+ const: ti,dlpc3433
+
+ reg:
+ enum:
+ - 0x1b
+ - 0x1d
+
+ enable-gpios:
+ description: PROJ_ON pin, chip powers up PROJ_ON is high.
+
+ vcc_intf-supply:
+ description: A 1.8V/3.3V supply that power the Host I/O.
+
+ vcc_flsh-supply:
+ description: A 1.8V/3.3V supply that power the Flash I/O.
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: Video port for MIPI DSI input.
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ description: array of physical DSI data lane indexes.
+ minItems: 1
+ items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Video port for DMD output.
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - enable-gpios
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ bridge@1b {
+ compatible = "ti,dlpc3433";
+ reg = <0x1b>;
+ enable-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+
+ bridge_in_dsi: endpoint {
+ remote-endpoint = <&dsi_out_bridge>;
+ data-lanes = <1 2 3 4>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ bridge_out_panel: endpoint {
+ remote-endpoint = <&panel_out_bridge>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
index 900a56cae80e..876015a44a1e 100644
--- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
+++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
@@ -20,6 +20,7 @@ properties:
- fsl,imx23-lcdif
- fsl,imx28-lcdif
- fsl,imx6sx-lcdif
+ - fsl,imx8mp-lcdif
- items:
- enum:
- fsl,imx6sl-lcdif
diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt b/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
deleted file mode 100644
index 169b32e4ee4e..000000000000
--- a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Ilitek ILI9341 display panels
-
-This binding is for display panels using an Ilitek ILI9341 controller in SPI
-mode.
-
-Required properties:
-- compatible: "adafruit,yx240qv29", "ilitek,ili9341"
-- dc-gpios: D/C pin
-- reset-gpios: Reset pin
-
-The node for this driver must be a child node of a SPI controller, hence
-all mandatory properties described in ../spi/spi-bus.txt must be specified.
-
-Optional properties:
-- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
-- backlight: phandle of the backlight device attached to the panel
-
-Example:
- display@0{
- compatible = "adafruit,yx240qv29", "ilitek,ili9341";
- reg = <0>;
- spi-max-frequency = <32000000>;
- dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
- reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
- rotation = <270>;
- backlight = <&backlight>;
- };
diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml b/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml
index aecff34f505d..1f8f2182e2f1 100644
--- a/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml
+++ b/Documentation/devicetree/bindings/display/ilitek,ili9486.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/ilitek,ili9486.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Ilitek ILI9486 display panels device tree bindings
+title: Ilitek ILI9486 display panels
maintainers:
- Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
diff --git a/Documentation/devicetree/bindings/display/ingenic,lcd.yaml b/Documentation/devicetree/bindings/display/ingenic,lcd.yaml
index 0049010b37ca..c0bb02fb49f4 100644
--- a/Documentation/devicetree/bindings/display/ingenic,lcd.yaml
+++ b/Documentation/devicetree/bindings/display/ingenic,lcd.yaml
@@ -17,6 +17,8 @@ properties:
enum:
- ingenic,jz4740-lcd
- ingenic,jz4725b-lcd
+ - ingenic,jz4760-lcd
+ - ingenic,jz4760b-lcd
- ingenic,jz4770-lcd
- ingenic,jz4780-lcd
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
new file mode 100644
index 000000000000..ff781f2174a0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,dp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Display Port Controller
+
+maintainers:
+ - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+ - Jitao shi <jitao.shi@mediatek.com>
+
+description: |
+ MediaTek DP and eDP are different hardwares and there are some features
+ which are not supported for eDP. For example, audio is not supported for
+ eDP. Therefore, we need to use two different compatibles to describe them.
+ In addition, We just need to enable the power domain of DP, so the clock
+ of DP is generated by itself and we are not using other PLL to generate
+ clocks.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8195-dp-tx
+ - mediatek,mt8195-edp-tx
+
+ reg:
+ maxItems: 1
+
+ nvmem-cells:
+ maxItems: 1
+ description: efuse data for display port calibration
+
+ nvmem-cell-names:
+ const: dp_calibration_data
+
+ power-domains:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Input endpoint of the controller, usually dp_intf
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: Output endpoint of the controller
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+ properties:
+ data-lanes:
+ description: |
+ number of lanes supported by the hardware.
+ The possible values:
+ 0 - For 1 lane enabled in IP.
+ 0 1 - For 2 lanes enabled in IP.
+ 0 1 2 3 - For 4 lanes enabled in IP.
+ minItems: 1
+ maxItems: 4
+ required:
+ - data-lanes
+
+ required:
+ - port@0
+ - port@1
+
+ max-linkrate-mhz:
+ enum: [ 1620, 2700, 5400, 8100 ]
+ description: maximum link rate supported by the hardware.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - ports
+ - max-linkrate-mhz
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/mt8195-power.h>
+ dptx@1c600000 {
+ compatible = "mediatek,mt8195-dp-tx";
+ reg = <0x1c600000 0x8000>;
+ power-domains = <&spm MT8195_POWER_DOMAIN_DP_TX>;
+ interrupts = <GIC_SPI 458 IRQ_TYPE_LEVEL_HIGH 0>;
+ max-linkrate-mhz = <8100>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ dptx_in: endpoint {
+ remote-endpoint = <&dp_intf0_out>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ dptx_out: endpoint {
+ data-lanes = <0 1 2 3>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
index 77ee1b923991..5bb23e97cf33 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
@@ -4,16 +4,16 @@
$id: http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: mediatek DPI Controller Device Tree Bindings
+title: MediaTek DPI and DP_INTF Controller
maintainers:
- CK Hu <ck.hu@mediatek.com>
- Jitao shi <jitao.shi@mediatek.com>
description: |
- The Mediatek DPI function block is a sink of the display subsystem and
- provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a parallel
- output bus.
+ The MediaTek DPI and DP_INTF function blocks are a sink of the display
+ subsystem and provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a
+ parallel output bus.
properties:
compatible:
@@ -24,6 +24,7 @@ properties:
- mediatek,mt8183-dpi
- mediatek,mt8186-dpi
- mediatek,mt8192-dpi
+ - mediatek,mt8195-dp-intf
reg:
maxItems: 1
@@ -55,7 +56,7 @@ properties:
$ref: /schemas/graph.yaml#/properties/port
description:
Output port node. This port should be connected to the input port of an
- attached HDMI or LVDS encoder chip.
+ attached HDMI, LVDS or DisplayPort encoder chip.
required:
- compatible
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
deleted file mode 100644
index 36b01458f45c..000000000000
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.txt
+++ /dev/null
@@ -1,62 +0,0 @@
-Mediatek DSI Device
-===================
-
-The Mediatek DSI function block is a sink of the display subsystem and can
-drive up to 4-lane MIPI DSI output. Two DSIs can be synchronized for dual-
-channel output.
-
-Required properties:
-- compatible: "mediatek,<chip>-dsi"
-- the supported chips are mt2701, mt7623, mt8167, mt8173 and mt8183.
-- reg: Physical base address and length of the controller's registers
-- interrupts: The interrupt signal from the function block.
-- clocks: device clocks
- See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
-- clock-names: must contain "engine", "digital", and "hs"
-- phys: phandle link to the MIPI D-PHY controller.
-- phy-names: must contain "dphy"
-- port: Output port node with endpoint definitions as described in
- Documentation/devicetree/bindings/graph.txt. This port should be connected
- to the input port of an attached DSI panel or DSI-to-eDP encoder chip.
-
-Optional properties:
-- resets: list of phandle + reset specifier pair, as described in [1].
-
-[1] Documentation/devicetree/bindings/reset/reset.txt
-
-MIPI TX Configuration Module
-============================
-
-See phy/mediatek,dsi-phy.yaml
-
-Example:
-
-mipi_tx0: mipi-dphy@10215000 {
- compatible = "mediatek,mt8173-mipi-tx";
- reg = <0 0x10215000 0 0x1000>;
- clocks = <&clk26m>;
- clock-output-names = "mipi_tx0_pll";
- #clock-cells = <0>;
- #phy-cells = <0>;
- drive-strength-microamp = <4600>;
- nvmem-cells= <&mipi_tx_calibration>;
- nvmem-cell-names = "calibration-data";
-};
-
-dsi0: dsi@1401b000 {
- compatible = "mediatek,mt8173-dsi";
- reg = <0 0x1401b000 0 0x1000>;
- interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&mmsys MM_DSI0_ENGINE>, <&mmsys MM_DSI0_DIGITAL>,
- <&mipi_tx0>;
- clock-names = "engine", "digital", "hs";
- resets = <&mmsys MT8173_MMSYS_SW0_RST_B_DISP_DSI0>;
- phys = <&mipi_tx0>;
- phy-names = "dphy";
-
- port {
- dsi0_out: endpoint {
- remote-endpoint = <&panel_in>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml
new file mode 100644
index 000000000000..b18d6a57c6e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dsi.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek DSI Controller Device Tree Bindings
+
+maintainers:
+ - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+ - Philipp Zabel <p.zabel@pengutronix.de>
+ - Jitao Shi <jitao.shi@mediatek.com>
+ - Xinlei Lee <xinlei.lee@mediatek.com>
+
+description: |
+ The MediaTek DSI function block is a sink of the display subsystem and can
+ drive up to 4-lane MIPI DSI output. Two DSIs can be synchronized for dual-
+ channel output.
+
+allOf:
+ - $ref: /schemas/display/dsi-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt2701-dsi
+ - mediatek,mt7623-dsi
+ - mediatek,mt8167-dsi
+ - mediatek,mt8173-dsi
+ - mediatek,mt8183-dsi
+ - mediatek,mt8186-dsi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Engine Clock
+ - description: Digital Clock
+ - description: HS Clock
+
+ clock-names:
+ items:
+ - const: engine
+ - const: digital
+ - const: hs
+
+ resets:
+ maxItems: 1
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ items:
+ - const: dphy
+
+ port:
+ $ref: /schemas/graph.yaml#/properties/port
+ description:
+ Output port node. This port should be connected to the input
+ port of an attached DSI panel or DSI-to-eDP encoder chip.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - power-domains
+ - clocks
+ - clock-names
+ - phys
+ - phy-names
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/power/mt8183-power.h>
+ #include <dt-bindings/phy/phy.h>
+ #include <dt-bindings/reset/mt8183-resets.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ dsi0: dsi@14014000 {
+ compatible = "mediatek,mt8183-dsi";
+ reg = <0 0x14014000 0 0x1000>;
+ interrupts = <GIC_SPI 236 IRQ_TYPE_LEVEL_LOW>;
+ power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+ clocks = <&mmsys CLK_MM_DSI0_MM>,
+ <&mmsys CLK_MM_DSI0_IF>,
+ <&mipi_tx0>;
+ clock-names = "engine", "digital", "hs";
+ resets = <&mmsys MT8183_MMSYS_SW0_RST_B_DISP_DSI0>;
+ phys = <&mipi_tx0>;
+ phy-names = "dphy";
+ port {
+ dsi0_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
new file mode 100644
index 000000000000..dd12e2ff685c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
@@ -0,0 +1,88 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,mdp-rdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MDP RDMA
+
+maintainers:
+ - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+ - Philipp Zabel <p.zabel@pengutronix.de>
+
+description:
+ The MediaTek MDP RDMA stands for Read Direct Memory Access.
+ It provides real time data to the back-end panel driver, such as DSI,
+ DPI and DP_INTF.
+ It contains one line buffer to store the sufficient pixel data.
+ RDMA device node must be siblings to the central MMSYS_CONFIG node.
+ For a description of the MMSYS_CONFIG binding, see
+ Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml for details.
+
+properties:
+ compatible:
+ const: mediatek,mt8195-vdo1-rdma
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: RDMA Clock
+
+ iommus:
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ description:
+ The register of display function block to be set by gce. There are 4 arguments,
+ such as gce node, subsys id, offset and register size. The subsys id that is
+ mapping to the register of display function blocks is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - clocks
+ - iommus
+ - mediatek,gce-client-reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/mt8195-clk.h>
+ #include <dt-bindings/power/mt8195-power.h>
+ #include <dt-bindings/gce/mt8195-gce.h>
+ #include <dt-bindings/memory/mt8195-memory-port.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ rdma@1c104000 {
+ compatible = "mediatek,mt8195-vdo1-rdma";
+ reg = <0 0x1c104000 0 0x1000>;
+ interrupts = <GIC_SPI 495 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&vdosys1 CLK_VDO1_MDP_RDMA0>;
+ power-domains = <&spm MT8195_POWER_DOMAIN_VDOSYS1>;
+ iommus = <&iommu_vdo M4U_PORT_L2_MDP_RDMA0>;
+ mediatek,gce-client-reg = <&gce0 SUBSYS_1c10XXXX 0x4000 0x1000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index cd05cfd76536..f2515af8256f 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: MSM Display Port Controller
maintainers:
- - Kuogee Hsieh <khsieh@codeaurora.org>
+ - Kuogee Hsieh <quic_khsieh@quicinc.com>
description: |
Device tree bindings for DisplayPort host controller for MSM targets
@@ -24,6 +24,7 @@ properties:
- qcom,sm8350-dp
reg:
+ minItems: 4
items:
- description: ahb register block
- description: aux register block
@@ -70,12 +71,29 @@ properties:
operating-points-v2:
maxItems: 1
+ opp-table: true
+
power-domains:
maxItems: 1
+ aux-bus:
+ $ref: /schemas/display/dp-aux-bus.yaml#
+
+ data-lanes:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 4
+ items:
+ maximum: 3
+
"#sound-dai-cells":
const: 0
+ vdda-0p9-supply:
+ deprecated: true
+ vdda-1p2-supply:
+ deprecated: true
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
@@ -95,10 +113,33 @@ required:
- clock-names
- phys
- phy-names
- - "#sound-dai-cells"
- power-domains
- ports
+allOf:
+ # AUX BUS does not exist on DP controllers
+ # Audio output also is present only on DP output
+ # p1 regions is present on DP, but not on eDP
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc7280-edp
+ - qcom,sc8180x-edp
+ then:
+ properties:
+ "#sound-dai-cells": false
+ reg:
+ maxItems: 4
+ else:
+ properties:
+ aux-bus: false
+ reg:
+ minItems: 5
+ required:
+ - "#sound-dai-cells"
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml b/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml
index 2df64afb76e6..253665c693e6 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-msm8998.yaml
@@ -62,6 +62,7 @@ patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
description: Node containing the properties of DPU.
+ additionalProperties: false
properties:
compatible:
@@ -105,6 +106,9 @@ patternProperties:
maxItems: 1
operating-points-v2: true
+ opp-table:
+ type: object
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
description: |
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-qcm2290.yaml b/Documentation/devicetree/bindings/display/msm/dpu-qcm2290.yaml
index 734d14de966d..c5824e1d2382 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-qcm2290.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-qcm2290.yaml
@@ -74,6 +74,7 @@ patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
description: Node containing the properties of DPU.
+ additionalProperties: false
properties:
compatible:
@@ -113,6 +114,8 @@ patternProperties:
maxItems: 1
operating-points-v2: true
+ opp-table:
+ type: object
ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
index d3c3e4b07897..4890bc25f3fd 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
@@ -73,6 +73,7 @@ patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
description: Node containing the properties of DPU.
+ additionalProperties: false
properties:
compatible:
@@ -114,6 +115,8 @@ patternProperties:
maxItems: 1
operating-points-v2: true
+ opp-table:
+ type: object
ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7280.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7280.yaml
index f427eec3d3a4..584d646021d5 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-sc7280.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sc7280.yaml
@@ -72,6 +72,7 @@ patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
description: Node containing the properties of DPU.
+ additionalProperties: false
properties:
compatible:
@@ -112,6 +113,8 @@ patternProperties:
maxItems: 1
operating-points-v2: true
+ opp-table:
+ type: object
ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
index 2bb8896beffc..7d1037373175 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
@@ -65,6 +65,7 @@ patternProperties:
"^display-controller@[0-9a-f]+$":
type: object
description: Node containing the properties of DPU.
+ additionalProperties: false
properties:
compatible:
@@ -102,6 +103,9 @@ patternProperties:
maxItems: 1
operating-points-v2: true
+ opp-table:
+ type: object
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
description: |
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
index 880bfe930830..3b609c19e0bc 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -66,13 +66,11 @@ properties:
2 DSI links.
assigned-clocks:
- minItems: 2
maxItems: 2
description: |
Parents of "byte" and "pixel" for the given platform.
assigned-clock-parents:
- minItems: 2
maxItems: 2
description: |
The Byte clock and Pixel clock PLL outputs provided by a DSI PHY block.
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
index 716f921e3532..d9ad8b659f58 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
@@ -37,7 +37,6 @@ properties:
qcom,phy-rescode-offset-top:
$ref: /schemas/types.yaml#/definitions/int8-array
- minItems: 5
maxItems: 5
description:
Integer array of offset for pull-up legs rescode for all five lanes.
@@ -49,7 +48,6 @@ properties:
qcom,phy-rescode-offset-bot:
$ref: /schemas/types.yaml#/definitions/int8-array
- minItems: 5
maxItems: 5
description:
Integer array of offset for pull-down legs rescode for all five lanes.
diff --git a/Documentation/devicetree/bindings/display/msm/gmu.yaml b/Documentation/devicetree/bindings/display/msm/gmu.yaml
index fe55611d2603..67fdeeabae0c 100644
--- a/Documentation/devicetree/bindings/display/msm/gmu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gmu.yaml
@@ -20,35 +20,24 @@ description: |
properties:
compatible:
items:
- - enum:
- - qcom,adreno-gmu-630.2
+ - pattern: '^qcom,adreno-gmu-6[0-9][0-9]\.[0-9]$'
- const: qcom,adreno-gmu
reg:
- items:
- - description: Core GMU registers
- - description: GMU PDC registers
- - description: GMU PDC sequence registers
+ minItems: 3
+ maxItems: 4
reg-names:
- items:
- - const: gmu
- - const: gmu_pdc
- - const: gmu_pdc_seq
+ minItems: 3
+ maxItems: 4
clocks:
- items:
- - description: GMU clock
- - description: GPU CX clock
- - description: GPU AXI clock
- - description: GPU MEMNOC clock
+ minItems: 4
+ maxItems: 7
clock-names:
- items:
- - const: gmu
- - const: cxo
- - const: axi
- - const: memnoc
+ minItems: 4
+ maxItems: 7
interrupts:
items:
@@ -76,6 +65,9 @@ properties:
operating-points-v2: true
+ opp-table:
+ type: object
+
required:
- compatible
- reg
@@ -91,6 +83,140 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-gmu-618.0
+ - qcom,adreno-gmu-630.2
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: GMU PDC registers
+ - description: GMU PDC sequence registers
+ reg-names:
+ items:
+ - const: gmu
+ - const: gmu_pdc
+ - const: gmu_pdc_seq
+ clocks:
+ items:
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU AXI clock
+ - description: GPU MEMNOC clock
+ clock-names:
+ items:
+ - const: gmu
+ - const: cxo
+ - const: axi
+ - const: memnoc
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-gmu-635.0
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: Resource controller registers
+ - description: GMU PDC registers
+ reg-names:
+ items:
+ - const: gmu
+ - const: rscc
+ - const: gmu_pdc
+ clocks:
+ items:
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU AXI clock
+ - description: GPU MEMNOC clock
+ - description: GPU AHB clock
+ - description: GPU HUB CX clock
+ - description: GPU SMMU vote clock
+ clock-names:
+ items:
+ - const: gmu
+ - const: cxo
+ - const: axi
+ - const: memnoc
+ - const: ahb
+ - const: hub
+ - const: smmu_vote
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-gmu-640.1
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: GMU PDC registers
+ - description: GMU PDC sequence registers
+ reg-names:
+ items:
+ - const: gmu
+ - const: gmu_pdc
+ - const: gmu_pdc_seq
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-gmu-650.2
+ then:
+ properties:
+ reg:
+ items:
+ - description: Core GMU registers
+ - description: Resource controller registers
+ - description: GMU PDC registers
+ - description: GMU PDC sequence registers
+ reg-names:
+ items:
+ - const: gmu
+ - const: rscc
+ - const: gmu_pdc
+ - const: gmu_pdc_seq
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,adreno-gmu-640.1
+ - qcom,adreno-gmu-650.2
+ then:
+ properties:
+ clocks:
+ items:
+ - description: GPU AHB clock
+ - description: GMU clock
+ - description: GPU CX clock
+ - description: GPU AXI clock
+ - description: GPU MEMNOC clock
+ clock-names:
+ items:
+ - const: ahb
+ - const: gmu
+ - const: cxo
+ - const: axi
+ - const: memnoc
+
examples:
- |
#include <dt-bindings/clock/qcom,gpucc-sdm845.h>
diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
index 3397bc31d087..ec4b1a75f46a 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
@@ -58,7 +58,8 @@ properties:
- const: ocmem
iommus:
- maxItems: 1
+ minItems: 1
+ maxItems: 64
sram:
$ref: /schemas/types.yaml#/definitions/phandle-array
@@ -81,6 +82,7 @@ properties:
zap-shader:
type: object
+ additionalProperties: false
description: |
For a5xx and a6xx devices this node contains a memory-region that
points to reserved memory to store the zap shader that can be used to
diff --git a/Documentation/devicetree/bindings/display/msm/hdmi.txt b/Documentation/devicetree/bindings/display/msm/hdmi.txt
deleted file mode 100644
index 5f90a40da51b..000000000000
--- a/Documentation/devicetree/bindings/display/msm/hdmi.txt
+++ /dev/null
@@ -1,99 +0,0 @@
-Qualcomm adreno/snapdragon hdmi output
-
-Required properties:
-- compatible: one of the following
- * "qcom,hdmi-tx-8996"
- * "qcom,hdmi-tx-8994"
- * "qcom,hdmi-tx-8084"
- * "qcom,hdmi-tx-8974"
- * "qcom,hdmi-tx-8660"
- * "qcom,hdmi-tx-8960"
-- reg: Physical base address and length of the controller's registers
-- reg-names: "core_physical"
-- interrupts: The interrupt signal from the hdmi block.
-- power-domains: Should be <&mmcc MDSS_GDSC>.
-- clocks: device clocks
- See ../clocks/clock-bindings.txt for details.
-- core-vdda-supply: phandle to supply regulator
-- hdmi-mux-supply: phandle to mux regulator
-- phys: the phandle for the HDMI PHY device
-- phy-names: the name of the corresponding PHY device
-
-Optional properties:
-- hpd-gpios: hpd pin
-- qcom,hdmi-tx-mux-en-gpios: hdmi mux enable pin
-- qcom,hdmi-tx-mux-sel-gpios: hdmi mux select pin
-- qcom,hdmi-tx-mux-lpm-gpios: hdmi mux lpm pin
-- power-domains: reference to the power domain(s), if available.
-- pinctrl-names: the pin control state names; should contain "default"
-- pinctrl-0: the default pinctrl state (active)
-- pinctrl-1: the "sleep" pinctrl state
-
-HDMI PHY:
-Required properties:
-- compatible: Could be the following
- * "qcom,hdmi-phy-8660"
- * "qcom,hdmi-phy-8960"
- * "qcom,hdmi-phy-8974"
- * "qcom,hdmi-phy-8084"
- * "qcom,hdmi-phy-8996"
-- #phy-cells: Number of cells in a PHY specifier; Should be 0.
-- reg: Physical base address and length of the registers of the PHY sub blocks.
-- reg-names: The names of register regions. The following regions are required:
- * "hdmi_phy"
- * "hdmi_pll"
- For HDMI PHY on msm8996, these additional register regions are required:
- * "hdmi_tx_l0"
- * "hdmi_tx_l1"
- * "hdmi_tx_l3"
- * "hdmi_tx_l4"
-- power-domains: Should be <&mmcc MDSS_GDSC>.
-- clocks: device clocks
- See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
-- core-vdda-supply: phandle to vdda regulator device node
-
-Example:
-
-/ {
- ...
-
- hdmi: hdmi@4a00000 {
- compatible = "qcom,hdmi-tx-8960";
- reg-names = "core_physical";
- reg = <0x04a00000 0x2f0>;
- interrupts = <GIC_SPI 79 0>;
- power-domains = <&mmcc MDSS_GDSC>;
- clock-names =
- "core",
- "master_iface",
- "slave_iface";
- clocks =
- <&mmcc HDMI_APP_CLK>,
- <&mmcc HDMI_M_AHB_CLK>,
- <&mmcc HDMI_S_AHB_CLK>;
- qcom,hdmi-tx-ddc-clk = <&msmgpio 70 GPIO_ACTIVE_HIGH>;
- qcom,hdmi-tx-ddc-data = <&msmgpio 71 GPIO_ACTIVE_HIGH>;
- qcom,hdmi-tx-hpd = <&msmgpio 72 GPIO_ACTIVE_HIGH>;
- core-vdda-supply = <&pm8921_hdmi_mvs>;
- hdmi-mux-supply = <&ext_3p3v>;
- pinctrl-names = "default", "sleep";
- pinctrl-0 = <&hpd_active &ddc_active &cec_active>;
- pinctrl-1 = <&hpd_suspend &ddc_suspend &cec_suspend>;
-
- phys = <&hdmi_phy>;
- phy-names = "hdmi_phy";
- };
-
- hdmi_phy: phy@4a00400 {
- compatible = "qcom,hdmi-phy-8960";
- reg-names = "hdmi_phy",
- "hdmi_pll";
- reg = <0x4a00400 0x60>,
- <0x4a00500 0x100>;
- #phy-cells = <0>;
- power-domains = <&mmcc MDSS_GDSC>;
- clock-names = "slave_iface";
- clocks = <&mmcc HDMI_S_AHB_CLK>;
- core-vdda-supply = <&pm8921_hdmi_mvs>;
- };
-};
diff --git a/Documentation/devicetree/bindings/display/msm/hdmi.yaml b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
new file mode 100644
index 000000000000..47e97669821c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/hdmi.yaml
@@ -0,0 +1,232 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/display/msm/hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Adreno/Snapdragon HDMI output
+
+maintainers:
+ - Rob Clark <robdclark@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - qcom,hdmi-tx-8084
+ - qcom,hdmi-tx-8660
+ - qcom,hdmi-tx-8960
+ - qcom,hdmi-tx-8974
+ - qcom,hdmi-tx-8994
+ - qcom,hdmi-tx-8996
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
+
+ reg:
+ minItems: 1
+ maxItems: 3
+
+ reg-names:
+ minItems: 1
+ items:
+ - const: core_physical
+ - const: qfprom_physical
+ - const: hdcp_physical
+
+ interrupts:
+ maxItems: 1
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ enum:
+ - hdmi_phy
+ - hdmi-phy
+ deprecated: true
+
+ core-vdda-supply:
+ description: phandle to VDDA supply regulator
+
+ hdmi-mux-supply:
+ description: phandle to mux regulator
+ deprecated: true
+
+ core-vcc-supply:
+ description: phandle to VCC supply regulator
+
+ hpd-gpios:
+ maxItems: 1
+ description: hpd pin
+
+ qcom,hdmi-tx-mux-en-gpios:
+ maxItems: 1
+ deprecated: true
+ description: HDMI mux enable pin
+
+ qcom,hdmi-tx-mux-sel-gpios:
+ maxItems: 1
+ deprecated: true
+ description: HDMI mux select pin
+
+ qcom,hdmi-tx-mux-lpm-gpios:
+ maxItems: 1
+ deprecated: true
+ description: HDMI mux lpm pin
+
+ '#sound-dai-cells':
+ const: 1
+
+ ports:
+ type: object
+ $ref: /schemas/graph.yaml#/properties/ports
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ description: |
+ Input endpoints of the controller.
+
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ description: |
+ Output endpoints of the controller.
+
+ required:
+ - port@0
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - interrupts
+ - phys
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,hdmi-tx-8960
+ - qcom,hdmi-tx-8660
+ then:
+ properties:
+ clocks:
+ minItems: 3
+ maxItems: 3
+ clock-names:
+ items:
+ - const: core
+ - const: master_iface
+ - const: slave_iface
+ core-vcc-supplies: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,hdmi-tx-8974
+ - qcom,hdmi-tx-8084
+ - qcom,hdmi-tx-8994
+ - qcom,hdmi-tx-8996
+ then:
+ properties:
+ clocks:
+ minItems: 5
+ clock-names:
+ items:
+ - const: mdp_core
+ - const: iface
+ - const: core
+ - const: alt_iface
+ - const: extp
+ hdmi-mux-supplies: false
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ hdmi: hdmi@4a00000 {
+ compatible = "qcom,hdmi-tx-8960";
+ reg-names = "core_physical";
+ reg = <0x04a00000 0x2f0>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "core",
+ "master_iface",
+ "slave_iface";
+ clocks = <&clk 61>,
+ <&clk 72>,
+ <&clk 98>;
+ hpd-gpios = <&msmgpio 72 GPIO_ACTIVE_HIGH>;
+ core-vdda-supply = <&pm8921_hdmi_mvs>;
+ hdmi-mux-supply = <&ext_3p3v>;
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&hpd_active &ddc_active &cec_active>;
+ pinctrl-1 = <&hpd_suspend &ddc_suspend &cec_suspend>;
+
+ phys = <&hdmi_phy>;
+ };
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8996.h>
+ #include <dt-bindings/clock/qcom,mmcc-msm8996.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ hdmi@9a0000 {
+ compatible = "qcom,hdmi-tx-8996";
+ reg = <0x009a0000 0x50c>,
+ <0x00070000 0x6158>,
+ <0x009e0000 0xfff>;
+ reg-names = "core_physical",
+ "qfprom_physical",
+ "hdcp_physical";
+
+ interrupt-parent = <&mdss>;
+ interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&mmcc MDSS_MDP_CLK>,
+ <&mmcc MDSS_AHB_CLK>,
+ <&mmcc MDSS_HDMI_CLK>,
+ <&mmcc MDSS_HDMI_AHB_CLK>,
+ <&mmcc MDSS_EXTPCLK_CLK>;
+ clock-names = "mdp_core",
+ "iface",
+ "core",
+ "alt_iface",
+ "extp";
+
+ phys = <&hdmi_phy>;
+ #sound-dai-cells = <1>;
+
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&hdmi_hpd_active &hdmi_ddc_active>;
+ pinctrl-1 = <&hdmi_hpd_suspend &hdmi_ddc_suspend>;
+
+ core-vdda-supply = <&vreg_l12a_1p8>;
+ core-vcc-supply = <&vreg_s4a_1p8>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ endpoint {
+ remote-endpoint = <&mdp5_intf3_out>;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/mdp4.yaml b/Documentation/devicetree/bindings/display/msm/mdp4.yaml
index f63f60fea27c..58c13f5277b6 100644
--- a/Documentation/devicetree/bindings/display/msm/mdp4.yaml
+++ b/Documentation/devicetree/bindings/display/msm/mdp4.yaml
@@ -36,7 +36,7 @@ properties:
maxItems: 1
iommus:
- maxItems: 1
+ maxItems: 4
ports:
$ref: /schemas/graph.yaml#/properties/ports
diff --git a/Documentation/devicetree/bindings/display/panel/arm,rtsm-display.yaml b/Documentation/devicetree/bindings/display/panel/arm,rtsm-display.yaml
new file mode 100644
index 000000000000..4ad484f09ba3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/arm,rtsm-display.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/arm,rtsm-display.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm RTSM Virtual Platforms Display
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: arm,rtsm-display
+
+ port: true
+
+required:
+ - compatible
+ - port
+
+additionalProperties: false
+
+...
diff --git a/Documentation/devicetree/bindings/display/panel/arm,versatile-tft-panel.yaml b/Documentation/devicetree/bindings/display/panel/arm,versatile-tft-panel.yaml
index be69e0cc50fc..c9958f824d9a 100644
--- a/Documentation/devicetree/bindings/display/panel/arm,versatile-tft-panel.yaml
+++ b/Documentation/devicetree/bindings/display/panel/arm,versatile-tft-panel.yaml
@@ -37,9 +37,6 @@ examples:
compatible = "arm,versatile-sysreg", "syscon", "simple-mfd";
reg = <0x00000 0x1000>;
- #address-cells = <1>;
- #size-cells = <0>;
-
panel {
compatible = "arm,versatile-tft-panel";
diff --git a/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml b/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
new file mode 100644
index 000000000000..80deedc01c7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/ebbg,ft8719.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/ebbg,ft8719.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EBBG FT8719 MIPI-DSI LCD panel
+
+maintainers:
+ - Joel Selvaraj <jo@jsfamily.in>
+
+description: |
+ The FT8719 panel from EBBG is a FHD+ LCD display panel with a resolution
+ of 1080x2246. It is a video mode DSI panel. The backlight is managed
+ through the QCOM WLED driver.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ const: ebbg,ft8719
+
+ reg:
+ maxItems: 1
+ description: DSI virtual channel of the peripheral
+
+ vddio-supply:
+ description: power IC supply regulator
+
+ vddpos-supply:
+ description: positive boost supply regulator
+
+ vddneg-supply:
+ description: negative boost supply regulator
+
+required:
+ - compatible
+ - reg
+ - vddio-supply
+ - vddpos-supply
+ - vddneg-supply
+ - reset-gpios
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "ebbg,ft8719";
+ reg = <0>;
+
+ vddio-supply = <&vreg_l14a_1p88>;
+ vddpos-supply = <&lab>;
+ vddneg-supply = <&ibb>;
+
+ reset-gpios = <&tlmm 6 GPIO_ACTIVE_LOW>;
+
+ backlight = <&pmi8998_wled>;
+
+ port {
+ ebbg_ft8719_in_0: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.yaml b/Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.yaml
index 95acf9e96f1c..1cf84c8dd85e 100644
--- a/Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.yaml
+++ b/Documentation/devicetree/bindings/display/panel/feiyang,fy07024di26a30d.yaml
@@ -35,7 +35,6 @@ required:
- reg
- avdd-supply
- dvdd-supply
- - reset-gpios
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
index 6058948a9764..99e0cb9440cf 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
@@ -21,8 +21,10 @@ properties:
compatible:
items:
- enum:
+ - adafruit,yx240qv29
# ili9341 240*320 Color on stm32f429-disco board
- st,sf-tc240t-9370-t
+ - canaan,kd233-tft
- const: ilitek,ili9341
reg: true
@@ -47,31 +49,50 @@ properties:
vddi-led-supply:
description: Voltage supply for the LED driver (1.65 .. 3.3 V)
-additionalProperties: false
+unevaluatedProperties: false
required:
- compatible
- reg
- dc-gpios
- - port
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,sf-tc240t-9370-t
+then:
+ required:
+ - port
examples:
- |+
+ #include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
panel: display@0 {
- compatible = "st,sf-tc240t-9370-t",
- "ilitek,ili9341";
- reg = <0>;
- spi-3wire;
- spi-max-frequency = <10000000>;
- dc-gpios = <&gpiod 13 0>;
- port {
- panel_in: endpoint {
- remote-endpoint = <&display_out>;
- };
- };
- };
+ compatible = "st,sf-tc240t-9370-t",
+ "ilitek,ili9341";
+ reg = <0>;
+ spi-3wire;
+ spi-max-frequency = <10000000>;
+ dc-gpios = <&gpiod 13 0>;
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
+ };
+ display@1{
+ compatible = "adafruit,yx240qv29", "ilitek,ili9341";
+ reg = <1>;
+ spi-max-frequency = <10000000>;
+ dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
+ rotation = <270>;
+ backlight = <&backlight>;
};
+ };
...
diff --git a/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml b/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
index 2a2756d19681..b4be9bd8ddde 100644
--- a/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
+++ b/Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml
@@ -23,6 +23,8 @@ properties:
reg: true
reset-gpios: true
+ spi-3wire: true
+
required:
- compatible
- power-supply
diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
index 817a9bed7d5a..ebdca5f5a001 100644
--- a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t.yaml
@@ -24,6 +24,8 @@ properties:
reg: true
reset-gpios: true
+ spi-3wire: true
+
required:
- compatible
- power-supply
diff --git a/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml b/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml
index b4314ce7b411..ee357e139ac0 100644
--- a/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml
+++ b/Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml
@@ -15,13 +15,13 @@ maintainers:
allOf:
- $ref: panel-common.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
compatible:
const: lg,lg4573
reg: true
- spi-max-frequency: true
required:
- compatible
diff --git a/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml b/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
index 5e4e0e552c2f..628c4b898111 100644
--- a/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
+++ b/Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml
@@ -21,6 +21,9 @@ properties:
enable-gpios: true
port: true
+ spi-cpha: true
+ spi-cpol: true
+
required:
- compatible
- enable-gpios
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
index 563766d283f6..41ee3157a1cd 100644
--- a/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
@@ -46,6 +46,7 @@ properties:
reg: true
port: true
+ backlight: true
required:
- compatible
@@ -73,6 +74,7 @@ examples:
vddpos-supply = <&lab>;
vddneg-supply = <&ibb>;
+ backlight = <&pmi8998_wled>;
reset-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>;
port {
diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
index 21ba90c9fe33..18241f4051d2 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple.yaml
@@ -35,6 +35,8 @@ properties:
- ampire,am-480272h3tmqw-t01h
# Ampire AM-800480R3TMQW-A1H 7.0" WVGA TFT LCD panel
- ampire,am800480r3tmqwa1h
+ # Ampire AM-800600P5TMQW-TB8H 8.0" SVGA TFT LCD panel
+ - ampire,am800600p5tmqw-tb8h
# AU Optronics Corporation 10.1" WSVGA TFT LCD panel
- auo,b101aw03
# AU Optronics Corporation 10.1" WSVGA TFT LCD panel
@@ -107,6 +109,8 @@ properties:
- chunghwa,claa101wb03
# DataImage, Inc. 4.3" WQVGA (480x272) TFT LCD panel with 24-bit parallel interface.
- dataimage,fg040346dsswbg04
+ # DataImage, Inc. 10.1" WXGA (1280×800) TFT LCD panel
+ - dataimage,fg1001l0dsswmg01
# DataImage, Inc. 7" WVGA (800x480) TFT LCD panel with 24-bit parallel interface.
- dataimage,scf0700c48ggu18
# DLC Display Co. DLC1010GIG 10.1" WXGA TFT LCD Panel
@@ -137,6 +141,8 @@ properties:
# Emerging Display Technology Corp. WVGA TFT Display with capacitive touch
- edt,etm0700g0dh6
- edt,etm0700g0edh6
+ # Emerging Display Technology Corp. LVDS WSVGA TFT Display with capacitive touch
+ - edt,etml0700y5dha
# Emerging Display Technology Corp. 5.7" VGA TFT LCD panel with
# capacitive touch
- edt,etmv570g2dhu
@@ -158,6 +164,8 @@ properties:
- hannstar,hsd070pww1
# HannStar Display Corp. HSD100PXN1 10.1" XGA LVDS panel
- hannstar,hsd100pxn1
+ # HannStar Display Corp. HSD101PWW2 10.1" WXGA (1280x800) LVDS panel
+ - hannstar,hsd101pww2
# Hitachi Ltd. Corporation 9" WVGA (800x480) TFT LCD panel
- hit,tx23d38vm0caa
# InfoVision Optoelectronics M133NWF4 R0 13.3" FHD (1920x1080) TFT LCD panel
@@ -226,6 +234,8 @@ properties:
- mitsubishi,aa070mc01-ca1
# Multi-Inno Technology Co.,Ltd MI0700S4T-6 7" 800x480 TFT Resistive Touch Module
- multi-inno,mi0700s4t-6
+ # Multi-Inno Technology Co.,Ltd MI0800FT-9 8" 800x600 TFT Resistive Touch Module
+ - multi-inno,mi0800ft-9
# Multi-Inno Technology Co.,Ltd MI1010AIT-1CP 10.1" 1280x800 LVDS IPS Cap Touch Mod.
- multi-inno,mi1010ait-1cp
# NEC LCD Technologies, Ltd. 12.1" WXGA (1280x800) LVDS TFT LCD panel
@@ -272,6 +282,8 @@ properties:
- samsung,atna33xc20
# Samsung 12.2" (2560x1600 pixels) TFT LCD panel
- samsung,lsn122dl01-c01
+ # Samsung Electronics 10.1" WXGA (1280x800) TFT LCD panel
+ - samsung,ltl101al01
# Samsung Electronics 10.1" WSVGA TFT LCD panel
- samsung,ltn101nt05
# Samsung Electronics 14" WXGA (1366x768) TFT LCD panel
diff --git a/Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml b/Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml
index 617aa8c8c03a..d62fd692bf10 100644
--- a/Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml
+++ b/Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml
@@ -38,6 +38,7 @@ properties:
0 - burst-mode
1 - non-burst with sync event
2 - non-burst with sync pulse
+ $ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2]
required:
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml b/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
index d525165d6d63..c0fabeb38628 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml
@@ -42,6 +42,9 @@ properties:
panel-height-mm:
description: physical panel height [mm]
+ spi-cpha: true
+ spi-cpol: true
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml b/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml
index 940f7f88526f..6f1fc7469f07 100644
--- a/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml
+++ b/Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml
@@ -24,6 +24,10 @@ properties:
default-brightness: true
max-brightness: true
+ spi-3wire: true
+ spi-cpha: true
+ spi-cpol: true
+
vdd3-supply:
description: VDD regulator
diff --git a/Documentation/devicetree/bindings/display/panel/sgd,gktw70sdae4se.yaml b/Documentation/devicetree/bindings/display/panel/sgd,gktw70sdae4se.yaml
index 44e02decdf3a..2e75e3738ff0 100644
--- a/Documentation/devicetree/bindings/display/panel/sgd,gktw70sdae4se.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sgd,gktw70sdae4se.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Solomon Goldentek Display GKTW70SDAE4SE 7" WVGA LVDS Display Panel
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
- Thierry Reding <thierry.reding@gmail.com>
allOf:
diff --git a/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml b/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
index a679d3647dbd..9ec0e8aae4c6 100644
--- a/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sharp,lq101r1sx01.yaml
@@ -30,7 +30,12 @@ allOf:
properties:
compatible:
- const: sharp,lq101r1sx01
+ oneOf:
+ - items:
+ - const: sharp,lq101r1sx03
+ - const: sharp,lq101r1sx01
+ - items:
+ - const: sharp,lq101r1sx01
reg: true
power-supply: true
diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml b/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml
index 6dff59fe4be1..34d5e20c6cb3 100644
--- a/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7701.yaml
@@ -17,6 +17,9 @@ description: |
Techstar TS8550B is 480x854, 2-lane MIPI DSI LCD panel which has
inbuilt ST7701 chip.
+ Densitron DMT028VGHMCMI-1A is 480x640, 2-lane MIPI DSI LCD panel
+ which has built-in ST7701 chip.
+
allOf:
- $ref: panel-common.yaml#
@@ -24,6 +27,7 @@ properties:
compatible:
items:
- enum:
+ - densitron,dmt028vghmcmi-1a
- techstar,ts8550b
- const: sitronix,st7701
diff --git a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
index 9e1d707c2ace..d984b59daa4a 100644
--- a/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml
@@ -23,6 +23,9 @@ properties:
backlight: true
port: true
+ spi-cpha: true
+ spi-cpol: true
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/display/panel/tpo,td.yaml b/Documentation/devicetree/bindings/display/panel/tpo,td.yaml
index f902a9d74141..e8c8ee8d7c88 100644
--- a/Documentation/devicetree/bindings/display/panel/tpo,td.yaml
+++ b/Documentation/devicetree/bindings/display/panel/tpo,td.yaml
@@ -28,6 +28,9 @@ properties:
backlight: true
port: true
+ spi-cpha: true
+ spi-cpol: true
+
required:
- compatible
- port
diff --git a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
index 39792f051d2d..9a223df8530c 100644
--- a/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
+++ b/Documentation/devicetree/bindings/display/rockchip/dw_mipi_dsi_rockchip.txt
@@ -8,6 +8,7 @@ Required properties:
"rockchip,px30-mipi-dsi", "snps,dw-mipi-dsi"
"rockchip,rk3288-mipi-dsi", "snps,dw-mipi-dsi"
"rockchip,rk3399-mipi-dsi", "snps,dw-mipi-dsi"
+ "rockchip,rk3568-mipi-dsi", "snps,dw-mipi-dsi"
- reg: Represent the physical address range of the controller.
- interrupts: Represent the controller's interrupt to the CPU(s).
- clocks, clock-names: Phandles to the controller's pll reference
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi-ddc.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi-ddc.yaml
index 919734c05c0b..458d399cb025 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi-ddc.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi-ddc.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos SoC HDMI DDC
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml
index 63379fae3636..e4a68c5a1a09 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos SoC HDMI
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-mixer.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-mixer.yaml
index 00e325a19cb1..25d53fde92e1 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-mixer.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-mixer.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos SoC Mixer
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml
index 7c37470bd329..6380eeebb073 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos5433 SoC Display and Enhancement Controller (DECON)
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
@@ -25,7 +24,6 @@ properties:
- samsung,exynos5433-decon-tv
clocks:
- minItems: 11
maxItems: 11
clock-names:
@@ -60,7 +58,6 @@ properties:
- const: te
iommus:
- minItems: 2
maxItems: 2
iommu-names:
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-mic.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-mic.yaml
index c5c6239c28d0..26e5017737a3 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-mic.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-mic.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos5433 SoC Mobile Image Compressor (MIC)
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
@@ -25,7 +24,6 @@ properties:
const: samsung,exynos5433-mic
clocks:
- minItems: 2
maxItems: 2
clock-names:
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml
index 320eedc61a5b..992c23ca7a4e 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos7-decon.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos7 SoC Display and Enhancement Controller (DECON)
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
@@ -23,7 +22,6 @@ properties:
const: samsung,exynos7-decon
clocks:
- minItems: 4
maxItems: 4
clock-names:
@@ -38,6 +36,7 @@ properties:
i80-if-timings:
type: object
+ additionalProperties: false
description: timing configuration for lcd i80 interface support
properties:
cs-setup:
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,fimd.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,fimd.yaml
index c62ea9d22843..075231716b2f 100644
--- a/Documentation/devicetree/bindings/display/samsung/samsung,fimd.yaml
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,fimd.yaml
@@ -8,7 +8,6 @@ title: Samsung S3C/S5P/Exynos SoC Fully Interactive Mobile Display (FIMD)
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
@@ -28,7 +27,6 @@ properties:
const: 1
clocks:
- minItems: 2
maxItems: 2
clock-names:
@@ -41,6 +39,7 @@ properties:
i80-if-timings:
type: object
+ additionalProperties: false
description: |
Timing configuration for lcd i80 interface support.
The parameters are defined as::
diff --git a/Documentation/devicetree/bindings/display/simple-framebuffer.yaml b/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
index 27ba4323d221..dd64f70b5014 100644
--- a/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
+++ b/Documentation/devicetree/bindings/display/simple-framebuffer.yaml
@@ -4,10 +4,9 @@
$id: http://devicetree.org/schemas/display/simple-framebuffer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Simple Framebuffer Device Tree Bindings
+title: Simple Framebuffer
maintainers:
- - Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
- Hans de Goede <hdegoede@redhat.com>
description: |+
diff --git a/Documentation/devicetree/bindings/display/sitronix,st7735r.yaml b/Documentation/devicetree/bindings/display/sitronix,st7735r.yaml
index 157b1a7b18f9..621f27148419 100644
--- a/Documentation/devicetree/bindings/display/sitronix,st7735r.yaml
+++ b/Documentation/devicetree/bindings/display/sitronix,st7735r.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/display/sitronix,st7735r.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Sitronix ST7735R Display Panels Device Tree Bindings
+title: Sitronix ST7735R Display Panels
maintainers:
- David Lechner <david@lechnology.com>
@@ -15,6 +15,7 @@ description:
allOf:
- $ref: panel/panel-common.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
index 3fbd87c2c120..669f70b1b4c4 100644
--- a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
+++ b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
@@ -49,9 +49,6 @@ properties:
vbat-supply:
description: The supply for VBAT
- # Only required for SPI
- spi-max-frequency: true
-
solomon,height:
$ref: /schemas/types.yaml#/definitions/uint32
default: 16
@@ -153,6 +150,8 @@ required:
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
- if:
properties:
compatible:
@@ -223,7 +222,7 @@ allOf:
solomon,dclk-frq:
default: 10
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml b/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml
index 54f67cb51040..c488308d7be1 100644
--- a/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/st,stm32-dsi.yaml
@@ -58,9 +58,20 @@ properties:
DSI input port node, connected to the ltdc rgb output port.
port@1:
- $ref: /schemas/graph.yaml#/properties/port
- description:
- DSI output port node, connected to a panel or a bridge input port"
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: |
+ DSI output port node, connected to a panel or a bridge input port.
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+ properties:
+ data-lanes:
+ minItems: 1
+ items:
+ - const: 1
+ - const: 2
required:
- "#address-cells"
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.txt
deleted file mode 100644
index e4a25cedc5cf..000000000000
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-NVIDIA Tegra MIPI pad calibration controller
-
-Required properties:
-- compatible: "nvidia,tegra<chip>-mipi"
-- reg: Physical base address and length of the controller's registers.
-- clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Must include the following entries:
- - mipi-cal
-- #nvidia,mipi-calibrate-cells: Should be 1. The cell is a bitmask of the pads
- that need to be calibrated for a given device.
-
-User nodes need to contain an nvidia,mipi-calibrate property that has a
-phandle to refer to the calibration controller node and a bitmask of the pads
-that need to be calibrated.
-
-Example:
-
- mipi: mipi@700e3000 {
- compatible = "nvidia,tegra114-mipi";
- reg = <0x700e3000 0x100>;
- clocks = <&tegra_car TEGRA114_CLK_MIPI_CAL>;
- clock-names = "mipi-cal";
- #nvidia,mipi-calibrate-cells = <1>;
- };
-
- ...
-
- host1x@50000000 {
- ...
-
- dsi@54300000 {
- ...
-
- nvidia,mipi-calibrate = <&mipi 0x060>;
-
- ...
- };
-
- ...
- };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.yaml
new file mode 100644
index 000000000000..d5ca8cf86e8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra114-mipi.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra114-mipi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra MIPI pad calibration controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^mipi@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra114-mipi
+ - nvidia,tegra210-mipi
+ - nvidia,tegra186-mipi
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+
+ clock-names:
+ items:
+ - const: mipi-cal
+
+ power-domains:
+ maxItems: 1
+
+ "#nvidia,mipi-calibrate-cells":
+ description: The number of cells in a MIPI calibration specifier.
+ Should be 1. The single cell specifies a bitmask of the pads that
+ need to be calibrated for a given device.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ const: 1
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#nvidia,mipi-calibrate-cells"
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra114-car.h>
+
+ mipi@700e3000 {
+ compatible = "nvidia,tegra114-mipi";
+ reg = <0x700e3000 0x100>;
+ clocks = <&tegra_car TEGRA114_CLK_MIPI_CAL>;
+ clock-names = "mipi-cal";
+ #nvidia,mipi-calibrate-cells = <1>;
+ };
+
+ dsia: dsi@54300000 {
+ compatible = "nvidia,tegra114-dsi";
+ reg = <0x54300000 0x00040000>;
+ clocks = <&tegra_car TEGRA114_CLK_DSIA>,
+ <&tegra_car TEGRA114_CLK_DSIALP>,
+ <&tegra_car TEGRA114_CLK_PLL_D_OUT0>;
+ clock-names = "dsi", "lp", "parent";
+ resets = <&tegra_car 48>;
+ reset-names = "dsi";
+ nvidia,mipi-calibrate = <&mipi 0x060>; /* DSIA & DSIB pads */
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-dpaux.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-dpaux.yaml
new file mode 100644
index 000000000000..9ab123cd2325
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-dpaux.yaml
@@ -0,0 +1,152 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra124-dpaux.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra DisplayPort AUX Interface
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+description: |
+ The Tegra Display Port Auxiliary (DPAUX) pad controller manages two
+ pins which can be assigned to either the DPAUX channel or to an I2C
+ controller.
+
+ When configured for DisplayPort AUX operation, the DPAUX controller
+ can also be used to communicate with a DisplayPort device using the
+ AUX channel.
+
+properties:
+ $nodename:
+ pattern: "^dpaux@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra124-dpaux
+ - nvidia,tegra210-dpaux
+ - nvidia,tegra186-dpaux
+ - nvidia,tegra194-dpaux
+
+ - items:
+ - const: nvidia,tegra132-dpaux
+ - const: nvidia,tegra124-dpaux
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: clock input for the DPAUX hardware
+ - description: reference clock
+
+ clock-names:
+ items:
+ - const: dpaux
+ - const: parent
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: dpaux
+
+ power-domains:
+ maxItems: 1
+
+ i2c-bus:
+ description: Subnode where I2C slave devices are listed. This
+ subnode must be always present. If there are no I2C slave
+ devices, an empty node should be added. See ../../i2c/i2c.yaml
+ for more information.
+ type: object
+
+ aux-bus:
+ $ref: /schemas/display/dp-aux-bus.yaml#
+
+ vdd-supply:
+ description: phandle of a supply that powers the DisplayPort
+ link
+
+patternProperties:
+ "^pinmux-[a-z0-9]+$":
+ description:
+ Since only three configurations are possible, only three child
+ nodes are needed to describe the pin mux'ing options for the
+ DPAUX pads. Furthermore, given that the pad functions are only
+ applicable to a single set of pads, the child nodes only need
+ to describe the pad group the functions are being applied to
+ rather than the individual pads.
+ type: object
+ properties:
+ groups:
+ const: dpaux-io
+
+ function:
+ enum:
+ - aux
+ - i2c
+ - off
+
+ additionalProperties: false
+
+ required:
+ - groups
+ - function
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra210-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ dpaux: dpaux@545c0000 {
+ compatible = "nvidia,tegra210-dpaux";
+ reg = <0x545c0000 0x00040000>;
+ interrupts = <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA210_CLK_DPAUX>,
+ <&tegra_car TEGRA210_CLK_PLL_DP>;
+ clock-names = "dpaux", "parent";
+ resets = <&tegra_car 181>;
+ reset-names = "dpaux";
+ power-domains = <&pd_sor>;
+ status = "disabled";
+
+ state_dpaux_aux: pinmux-aux {
+ groups = "dpaux-io";
+ function = "aux";
+ };
+
+ state_dpaux_i2c: pinmux-i2c {
+ groups = "dpaux-io";
+ function = "i2c";
+ };
+
+ state_dpaux_off: pinmux-off {
+ groups = "dpaux-io";
+ function = "off";
+ };
+
+ i2c-bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-sor.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-sor.yaml
new file mode 100644
index 000000000000..907fb0baccae
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-sor.yaml
@@ -0,0 +1,197 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra124-sor.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra SOR Output Encoder
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+description: |
+ The Serial Output Resource (SOR) can be used to drive HDMI, LVDS, eDP
+ and DP outputs.
+
+properties:
+ $nodename:
+ pattern: "^sor@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra124-sor
+ - nvidia,tegra210-sor
+ - nvidia,tegra210-sor1
+ - nvidia,tegra186-sor
+ - nvidia,tegra186-sor1
+ - nvidia,tegra194-sor
+
+ - items:
+ - const: nvidia,tegra132-sor
+ - const: nvidia,tegra124-sor
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 5
+ maxItems: 6
+
+ clock-names:
+ minItems: 5
+ maxItems: 6
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: sor
+
+ power-domains:
+ maxItems: 1
+
+ avdd-io-hdmi-dp-supply:
+ description: I/O supply for HDMI/DP
+
+ vdd-hdmi-dp-pll-supply:
+ description: PLL supply for HDMI/DP
+
+ hdmi-supply:
+ description: +5.0V HDMI connector supply, required for HDMI
+
+ # Tegra186 and later
+ nvidia,interface:
+ description: index of the SOR interface
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+ nvidia,ddc-i2c-bus:
+ description: phandle of an I2C controller used for DDC EDID
+ probing
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ nvidia,hpd-gpio:
+ description: specifies a GPIO used for hotplug detection
+ maxItems: 1
+
+ nvidia,edid:
+ description: supplies a binary EDID blob
+ $ref: "/schemas/types.yaml#/definitions/uint8-array"
+
+ nvidia,panel:
+ description: phandle of a display panel, required for eDP
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ nvidia,xbar-cfg:
+ description: 5 cells containing the crossbar configuration.
+ Each lane of the SOR, identified by the cell's index, is
+ mapped via the crossbar to the pad specified by the cell's
+ value.
+ $ref: "/schemas/types.yaml#/definitions/uint32-array"
+
+ # optional when driving an eDP output
+ nvidia,dpaux:
+ description: phandle to a DispayPort AUX interface
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra186-sor
+ - nvidia,tegra194-sor
+ then:
+ properties:
+ clocks:
+ items:
+ - description: clock input for the SOR hardware
+ - description: SOR output clock
+ - description: input for the pixel clock
+ - description: reference clock for the SOR clock
+ - description: safe reference clock for the SOR clock
+ during power up
+ - description: SOR pad output clock
+
+ clock-names:
+ items:
+ - const: sor
+ - enum:
+ - source # deprecated
+ - out
+ - const: parent
+ - const: dp
+ - const: safe
+ - const: pad
+ else:
+ properties:
+ clocks:
+ items:
+ - description: clock input for the SOR hardware
+ - description: SOR output clock
+ - description: input for the pixel clock
+ - description: reference clock for the SOR clock
+ - description: safe reference clock for the SOR clock
+ during power up
+
+ clock-names:
+ items:
+ - const: sor
+ - enum:
+ - source # deprecated
+ - out
+ - const: parent
+ - const: dp
+ - const: safe
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - avdd-io-hdmi-dp-supply
+ - vdd-hdmi-dp-pll-supply
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra210-car.h>
+ #include <dt-bindings/gpio/tegra-gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ sor0: sor@54540000 {
+ compatible = "nvidia,tegra210-sor";
+ reg = <0x54540000 0x00040000>;
+ interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA210_CLK_SOR0>,
+ <&tegra_car TEGRA210_CLK_SOR0_OUT>,
+ <&tegra_car TEGRA210_CLK_PLL_D_OUT0>,
+ <&tegra_car TEGRA210_CLK_PLL_DP>,
+ <&tegra_car TEGRA210_CLK_SOR_SAFE>;
+ clock-names = "sor", "out", "parent", "dp", "safe";
+ resets = <&tegra_car 182>;
+ reset-names = "sor";
+ pinctrl-0 = <&state_dpaux_aux>;
+ pinctrl-1 = <&state_dpaux_i2c>;
+ pinctrl-2 = <&state_dpaux_off>;
+ pinctrl-names = "aux", "i2c", "off";
+ power-domains = <&pd_sor>;
+
+ avdd-io-hdmi-dp-supply = <&avdd_1v05>;
+ vdd-hdmi-dp-pll-supply = <&vdd_1v8>;
+ hdmi-supply = <&vdd_hdmi>;
+
+ nvidia,ddc-i2c-bus = <&hdmi_ddc>;
+ nvidia,hpd-gpio = <&gpio TEGRA_GPIO(CC, 1) GPIO_ACTIVE_LOW>;
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml
new file mode 100644
index 000000000000..7200095ef19e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra124-vic.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra124-vic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Video Image Composer
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^vic@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra124-vic
+ - nvidia,tegra210-vic
+ - nvidia,tegra186-vic
+ - nvidia,tegra194-vic
+ - nvidia,tegra234-vic
+
+ - items:
+ - const: nvidia,tegra132-vic
+ - const: nvidia,tegra124-vic
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: clock input for the VIC hardware
+
+ clock-names:
+ items:
+ - const: vic
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: vic
+
+ power-domains:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ description: Description of the interconnect paths for the VIC;
+ see ../interconnect/interconnect.txt for details.
+ items:
+ - description: memory read client for VIC
+ - description: memory write client for VIC
+
+ interconnect-names:
+ items:
+ - const: dma-mem # read
+ - const: write
+
+ dma-coherent: true
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml
new file mode 100644
index 000000000000..265a60d79d89
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dc.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra186-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra186 (and later) Display Controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^display@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra186-dc
+ - nvidia,tegra194-dc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: display controller pixel clock
+
+ clock-names:
+ items:
+ - const: dc
+
+ resets:
+ items:
+ - description: display controller reset
+
+ reset-names:
+ items:
+ - const: dc
+
+ power-domains:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ description: Description of the interconnect paths for the
+ display controller; see ../interconnect/interconnect.txt
+ for details.
+
+ interconnect-names:
+ items:
+ - const: dma-mem # read-0
+ - const: read-1
+
+ nvidia,outputs:
+ description: A list of phandles of outputs that this display
+ controller can drive.
+ $ref: "/schemas/types.yaml#/definitions/phandle-array"
+
+ nvidia,head:
+ description: The number of the display controller head. This
+ is used to setup the various types of output to receive
+ video data from the given head.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+ - nvidia,outputs
+ - nvidia,head
+
+# see nvidia,tegra186-display.yaml for examples
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-display.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-display.yaml
new file mode 100644
index 000000000000..8c0231345529
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-display.yaml
@@ -0,0 +1,310 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra186-display.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra186 (and later) Display Hub
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^display-hub@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra186-display
+ - nvidia,tegra194-display
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ minItems: 2
+ maxItems: 3
+
+ resets:
+ items:
+ - description: display hub reset
+ - description: window group 0 reset
+ - description: window group 1 reset
+ - description: window group 2 reset
+ - description: window group 3 reset
+ - description: window group 4 reset
+ - description: window group 5 reset
+
+ reset-names:
+ items:
+ - const: misc
+ - const: wgrp0
+ - const: wgrp1
+ - const: wgrp2
+ - const: wgrp3
+ - const: wgrp4
+ - const: wgrp5
+
+ power-domains:
+ maxItems: 1
+
+ ranges:
+ maxItems: 1
+
+patternProperties:
+ "^display@[0-9a-f]+$":
+ type: object
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra186-display
+ then:
+ properties:
+ clocks:
+ items:
+ - description: display core clock
+ - description: display stream compression clock
+ - description: display hub clock
+
+ clock-names:
+ items:
+ - const: disp
+ - const: dsc
+ - const: hub
+ else:
+ properties:
+ clocks:
+ items:
+ - description: display core clock
+ - description: display hub clock
+
+ clock-names:
+ items:
+ - const: disp
+ - const: hub
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra186-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/tegra186-mc.h>
+ #include <dt-bindings/power/tegra186-powergate.h>
+ #include <dt-bindings/reset/tegra186-reset.h>
+
+ display-hub@15200000 {
+ compatible = "nvidia,tegra186-display";
+ reg = <0x15200000 0x00040000>;
+ resets = <&bpmp TEGRA186_RESET_NVDISPLAY0_MISC>,
+ <&bpmp TEGRA186_RESET_NVDISPLAY0_WGRP0>,
+ <&bpmp TEGRA186_RESET_NVDISPLAY0_WGRP1>,
+ <&bpmp TEGRA186_RESET_NVDISPLAY0_WGRP2>,
+ <&bpmp TEGRA186_RESET_NVDISPLAY0_WGRP3>,
+ <&bpmp TEGRA186_RESET_NVDISPLAY0_WGRP4>,
+ <&bpmp TEGRA186_RESET_NVDISPLAY0_WGRP5>;
+ reset-names = "misc", "wgrp0", "wgrp1", "wgrp2",
+ "wgrp3", "wgrp4", "wgrp5";
+ clocks = <&bpmp TEGRA186_CLK_NVDISPLAY_DISP>,
+ <&bpmp TEGRA186_CLK_NVDISPLAY_DSC>,
+ <&bpmp TEGRA186_CLK_NVDISPLAYHUB>;
+ clock-names = "disp", "dsc", "hub";
+ status = "disabled";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISP>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x15200000 0x15200000 0x40000>;
+
+ display@15200000 {
+ compatible = "nvidia,tegra186-dc";
+ reg = <0x15200000 0x10000>;
+ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA186_CLK_NVDISPLAY_P0>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA186_RESET_NVDISPLAY0_HEAD0>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISP>;
+ interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA186_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+ iommus = <&smmu TEGRA186_SID_NVDISPLAY>;
+
+ nvidia,outputs = <&dsia &dsib &sor0 &sor1>;
+ nvidia,head = <0>;
+ };
+
+ display@15210000 {
+ compatible = "nvidia,tegra186-dc";
+ reg = <0x15210000 0x10000>;
+ interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA186_CLK_NVDISPLAY_P1>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA186_RESET_NVDISPLAY0_HEAD1>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISPB>;
+ interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA186_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+ iommus = <&smmu TEGRA186_SID_NVDISPLAY>;
+
+ nvidia,outputs = <&dsia &dsib &sor0 &sor1>;
+ nvidia,head = <1>;
+ };
+
+ display@15220000 {
+ compatible = "nvidia,tegra186-dc";
+ reg = <0x15220000 0x10000>;
+ interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA186_CLK_NVDISPLAY_P2>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA186_RESET_NVDISPLAY0_HEAD2>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISPC>;
+ interconnects = <&mc TEGRA186_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA186_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+ iommus = <&smmu TEGRA186_SID_NVDISPLAY>;
+
+ nvidia,outputs = <&sor0 &sor1>;
+ nvidia,head = <2>;
+ };
+ };
+
+ - |
+ #include <dt-bindings/clock/tegra194-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/tegra194-mc.h>
+ #include <dt-bindings/power/tegra194-powergate.h>
+ #include <dt-bindings/reset/tegra194-reset.h>
+
+ display-hub@15200000 {
+ compatible = "nvidia,tegra194-display";
+ reg = <0x15200000 0x00040000>;
+ resets = <&bpmp TEGRA194_RESET_NVDISPLAY0_MISC>,
+ <&bpmp TEGRA194_RESET_NVDISPLAY0_WGRP0>,
+ <&bpmp TEGRA194_RESET_NVDISPLAY0_WGRP1>,
+ <&bpmp TEGRA194_RESET_NVDISPLAY0_WGRP2>,
+ <&bpmp TEGRA194_RESET_NVDISPLAY0_WGRP3>,
+ <&bpmp TEGRA194_RESET_NVDISPLAY0_WGRP4>,
+ <&bpmp TEGRA194_RESET_NVDISPLAY0_WGRP5>;
+ reset-names = "misc", "wgrp0", "wgrp1", "wgrp2",
+ "wgrp3", "wgrp4", "wgrp5";
+ clocks = <&bpmp TEGRA194_CLK_NVDISPLAY_DISP>,
+ <&bpmp TEGRA194_CLK_NVDISPLAYHUB>;
+ clock-names = "disp", "hub";
+ status = "disabled";
+
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISP>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x15200000 0x15200000 0x40000>;
+
+ display@15200000 {
+ compatible = "nvidia,tegra194-dc";
+ reg = <0x15200000 0x10000>;
+ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA194_CLK_NVDISPLAY_P0>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA194_RESET_NVDISPLAY0_HEAD0>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISP>;
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+
+ nvidia,outputs = <&sor0 &sor1 &sor2 &sor3>;
+ nvidia,head = <0>;
+ };
+
+ display@15210000 {
+ compatible = "nvidia,tegra194-dc";
+ reg = <0x15210000 0x10000>;
+ interrupts = <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA194_CLK_NVDISPLAY_P1>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA194_RESET_NVDISPLAY0_HEAD1>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISPB>;
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+
+ nvidia,outputs = <&sor0 &sor1 &sor2 &sor3>;
+ nvidia,head = <1>;
+ };
+
+ display@15220000 {
+ compatible = "nvidia,tegra194-dc";
+ reg = <0x15220000 0x10000>;
+ interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA194_CLK_NVDISPLAY_P2>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA194_RESET_NVDISPLAY0_HEAD2>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISPC>;
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+
+ nvidia,outputs = <&sor0 &sor1 &sor2 &sor3>;
+ nvidia,head = <2>;
+ };
+
+ display@15230000 {
+ compatible = "nvidia,tegra194-dc";
+ reg = <0x15230000 0x10000>;
+ interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA194_CLK_NVDISPLAY_P3>;
+ clock-names = "dc";
+ resets = <&bpmp TEGRA194_RESET_NVDISPLAY0_HEAD3>;
+ reset-names = "dc";
+
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISPC>;
+ interconnects = <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR &emc>,
+ <&mc TEGRA194_MEMORY_CLIENT_NVDISPLAYR1 &emc>;
+ interconnect-names = "dma-mem", "read-1";
+
+ nvidia,outputs = <&sor0 &sor1 &sor2 &sor3>;
+ nvidia,head = <3>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dsi-padctl.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dsi-padctl.yaml
new file mode 100644
index 000000000000..e5a6145c8c53
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra186-dsi-padctl.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra186-dsi-padctl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra MIPI DSI pad controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^padctl@[0-9a-f]+$"
+
+ compatible:
+ const: nvidia,tegra186-dsi-padctl
+
+ reg:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: dsi
+
+allOf:
+ - $ref: "/schemas/reset/reset.yaml"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/reset/tegra186-reset.h>
+
+ padctl@15880000 {
+ compatible = "nvidia,tegra186-dsi-padctl";
+ reg = <0x15880000 0x10000>;
+ resets = <&bpmp TEGRA186_RESET_DSI>;
+ reset-names = "dsi";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml
new file mode 100644
index 000000000000..6eedee503aa0
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dc.yaml
@@ -0,0 +1,183 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-dc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Display Controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^dc@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra20-dc
+ - nvidia,tegra30-dc
+ - nvidia,tegra114-dc
+ - nvidia,tegra124-dc
+ - nvidia,tegra210-dc
+
+ - items:
+ - const: nvidia,tegra124-dc
+ - const: nvidia,tegra132-dc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: display controller pixel clock
+ - description: parent clock # optional
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: dc
+ - const: parent # optional
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: dc
+
+ interconnect-names: true
+ interconnects: true
+
+ iommus:
+ maxItems: 1
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the core power domain
+
+ memory-region: true
+
+ nvidia,head:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The number of the display controller head. This is used to setup the various
+ types of output to receive video data from the given head.
+
+ nvidia,outputs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: A list of phandles of outputs that this display controller can drive.
+
+ rgb:
+ type: object
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-dc
+ - nvidia,tegra30-dc
+ - nvidia,tegra114-dc
+ then:
+ properties:
+ interconnects:
+ items:
+ - description: window A memory client
+ - description: window B memory client
+ - description: window B memory client (vertical filter)
+ - description: window C memory client
+ - description: cursor memory client
+
+ interconnect-names:
+ items:
+ - const: wina
+ - const: winb
+ - const: winb-vfilter
+ - const: winc
+ - const: cursor
+
+ rgb:
+ description: Each display controller node has a child node, named "rgb", that represents
+ the RGB output associated with the controller.
+ type: object
+ properties:
+ nvidia,ddc-i2c-bus:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle of an I2C controller used for DDC EDID probing
+
+ nvidia,hpd-gpio:
+ description: specifies a GPIO used for hotplug detection
+ maxItems: 1
+
+ nvidia,edid:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: supplies a binary EDID blob
+
+ nvidia,panel:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle of a display panel
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra124-dc
+ then:
+ properties:
+ interconnects:
+ minItems: 4
+ items:
+ - description: window A memory client
+ - description: window B memory client
+ - description: window C memory client
+ - description: cursor memory client
+ - description: window D memory client
+ - description: window T memory client
+
+ interconnect-names:
+ minItems: 4
+ items:
+ - const: wina
+ - const: winb
+ - const: winc
+ - const: cursor
+ - const: wind
+ - const: wint
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ dc@54200000 {
+ compatible = "nvidia,tegra20-dc";
+ reg = <0x54200000 0x00040000>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_DISP1>;
+ clock-names = "dc";
+ resets = <&tegra_car 27>;
+ reset-names = "dc";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
new file mode 100644
index 000000000000..75546f250ad7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-dsi.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Display Serial Interface
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra20-dsi
+ - nvidia,tegra30-dsi
+ - nvidia,tegra114-dsi
+ - nvidia,tegra124-dsi
+ - nvidia,tegra210-dsi
+ - nvidia,tegra186-dsi
+
+ - items:
+ - const: nvidia,tegra132-dsi
+ - const: nvidia,tegra124-dsi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ minItems: 2
+ maxItems: 3
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: dsi
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ maxItems: 1
+
+ avdd-dsi-csi-supply:
+ description: phandle of a supply that powers the DSI controller
+
+ nvidia,mipi-calibrate:
+ description: Should contain a phandle and a specifier specifying
+ which pads are used by this DSI output and need to be
+ calibrated. See nvidia,tegra114-mipi.yaml for details.
+ $ref: "/schemas/types.yaml#/definitions/phandle-array"
+
+ nvidia,ddc-i2c-bus:
+ description: phandle of an I2C controller used for DDC EDID
+ probing
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ nvidia,hpd-gpio:
+ description: specifies a GPIO used for hotplug detection
+ maxItems: 1
+
+ nvidia,edid:
+ description: supplies a binary EDID blob
+ $ref: "/schemas/types.yaml#/definitions/uint8-array"
+
+ nvidia,panel:
+ description: phandle of a display panel
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ nvidia,ganged-mode:
+ description: contains a phandle to a second DSI controller to
+ gang up with in order to support up to 8 data lanes
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+allOf:
+ - $ref: "../dsi-controller.yaml#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-dsi
+ - nvidia,tegra30-dsi
+ then:
+ properties:
+ clocks:
+ items:
+ - description: DSI module clock
+ - description: input for the pixel clock
+
+ clock-names:
+ items:
+ - const: dsi
+ - const: parent
+ else:
+ properties:
+ clocks:
+ items:
+ - description: DSI module clock
+ - description: low-power module clock
+ - description: input for the pixel clock
+
+ clock-names:
+ items:
+ - const: dsi
+ - const: lp
+ - const: parent
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra186-dsi
+ then:
+ required:
+ - interrupts
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra186-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/tegra186-powergate.h>
+ #include <dt-bindings/reset/tegra186-reset.h>
+
+ dsi@15300000 {
+ compatible = "nvidia,tegra186-dsi";
+ reg = <0x15300000 0x10000>;
+ interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&bpmp TEGRA186_CLK_DSI>,
+ <&bpmp TEGRA186_CLK_DSIA_LP>,
+ <&bpmp TEGRA186_CLK_PLLD>;
+ clock-names = "dsi", "lp", "parent";
+ resets = <&bpmp TEGRA186_RESET_DSI>;
+ reset-names = "dsi";
+
+ power-domains = <&bpmp TEGRA186_POWER_DOMAIN_DISP>;
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-epp.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-epp.yaml
new file mode 100644
index 000000000000..0d55e6206b5e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-epp.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-epp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Encoder Pre-Processor
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^epp@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra20-epp
+ - nvidia,tegra30-epp
+ - nvidia,tegra114-epp
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: epp
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 4
+
+ interconnect-names:
+ maxItems: 4
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the core power domain
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ epp@540c0000 {
+ compatible = "nvidia,tegra20-epp";
+ reg = <0x540c0000 0x00040000>;
+ interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_EPP>;
+ resets = <&tegra_car 19>;
+ reset-names = "epp";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-gr2d.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-gr2d.yaml
new file mode 100644
index 000000000000..bf38accd98eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-gr2d.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-gr2d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA 2D graphics engine
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^gr2d@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra20-gr2d
+ - nvidia,tegra30-gr2d
+ - nvidia,tegra114-gr2d
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+
+ resets:
+ items:
+ - description: module reset
+ - description: memory client hotflush reset
+
+ reset-names:
+ items:
+ - const: 2d
+ - const: mc
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 4
+
+ interconnect-names:
+ maxItems: 4
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the HEG or core power domain
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/tegra20-mc.h>
+
+ gr2d@54140000 {
+ compatible = "nvidia,tegra20-gr2d";
+ reg = <0x54140000 0x00040000>;
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_GR2D>;
+ resets = <&tegra_car 21>, <&mc TEGRA20_MC_RESET_2D>;
+ reset-names = "2d", "mc";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-gr3d.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-gr3d.yaml
new file mode 100644
index 000000000000..4755a73473c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-gr3d.yaml
@@ -0,0 +1,214 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-gr3d.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA 3D graphics engine
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^gr3d@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra20-gr3d
+ - nvidia,tegra30-gr3d
+ - nvidia,tegra114-gr3d
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ maxItems: 2
+
+ resets:
+ minItems: 2
+ maxItems: 4
+
+ reset-names:
+ minItems: 2
+ maxItems: 4
+
+ iommus:
+ minItems: 1
+ maxItems: 2
+
+ interconnects:
+ minItems: 4
+ maxItems: 10
+
+ interconnect-names:
+ minItems: 4
+ maxItems: 10
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ minItems: 1
+ maxItems: 2
+
+ power-domain-names:
+ maxItems: 2
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra20-gr2d
+ then:
+ properties:
+ clocks:
+ items:
+ - description: module clock
+
+ clock-names:
+ items:
+ - const: 3d
+
+ resets:
+ items:
+ - description: module reset
+ - description: memory client hotflush reset
+
+ reset-names:
+ items:
+ - const: 3d
+ - const: mc
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ minItems: 4
+ maxItems: 4
+
+ interconnect-names:
+ minItems: 4
+ maxItems: 4
+
+ power-domains:
+ items:
+ - description: phandle to the TD power domain
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra30-gr3d
+ then:
+ properties:
+ clocks:
+ items:
+ - description: primary module clock
+ - description: secondary module clock
+
+ clock-names:
+ items:
+ - const: 3d
+ - const: 3d2
+
+ resets:
+ items:
+ - description: primary module reset
+ - description: secondary module reset
+ - description: primary memory client hotflush reset
+ - description: secondary memory client hotflush reset
+
+ reset-names:
+ items:
+ - const: 3d
+ - const: 3d2
+ - const: mc
+ - const: mc2
+
+ iommus:
+ minItems: 2
+ maxItems: 2
+
+ interconnects:
+ minItems: 8
+ maxItems: 8
+
+ interconnect-names:
+ minItems: 8
+ maxItems: 8
+
+ power-domains:
+ items:
+ - description: phandle to the TD power domain
+ - description: phandle to the TD2 power domain
+
+ power-domain-names:
+ items:
+ - const: 3d0
+ - const: 3d1
+
+ dependencies:
+ power-domains: [ power-domain-names ]
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra114-gr2d
+ then:
+ properties:
+ clocks:
+ items:
+ - description: module clock
+
+ clock-names:
+ items:
+ - const: 3d
+
+ resets:
+ items:
+ - description: module reset
+ - description: memory client hotflush reset
+
+ reset-names:
+ items:
+ - const: 3d
+ - const: mc
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ minItems: 10
+ maxItems: 10
+
+ interconnect-names:
+ minItems: 10
+ maxItems: 10
+
+ power-domains:
+ items:
+ - description: phandle to the TD power domain
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/memory/tegra20-mc.h>
+
+ gr3d@54180000 {
+ compatible = "nvidia,tegra20-gr3d";
+ reg = <0x54180000 0x00040000>;
+ clocks = <&tegra_car TEGRA20_CLK_GR3D>;
+ resets = <&tegra_car 24>, <&mc TEGRA20_MC_RESET_3D>;
+ reset-names = "3d", "mc";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml
new file mode 100644
index 000000000000..035b9f1f2eb5
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-hdmi.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra HDMI Output Encoder
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^hdmi@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra20-hdmi
+ - nvidia,tegra30-hdmi
+ - nvidia,tegra114-hdmi
+ - nvidia,tegra124-hdmi
+
+ - items:
+ - const: nvidia,tegra132-hdmi
+ - const: nvidia,tegra124-hdmi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+ - description: parent clock
+
+ clock-names:
+ items:
+ - const: hdmi
+ - const: parent
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: hdmi
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the core power domain
+
+ hdmi-supply:
+ description: supply for the +5V HDMI connector pin
+
+ vdd-supply:
+ description: regulator for supply voltage
+
+ pll-supply:
+ description: regulator for PLL
+
+ nvidia,ddc-i2c-bus:
+ description: phandle of an I2C controller used for DDC EDID
+ probing
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ nvidia,hpd-gpio:
+ description: specifies a GPIO used for hotplug detection
+ maxItems: 1
+
+ nvidia,edid:
+ description: supplies a binary EDID blob
+ $ref: "/schemas/types.yaml#/definitions/uint8-array"
+
+ nvidia,panel:
+ description: phandle of a display panel
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ "#sound-dai-cells":
+ const: 0
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - pll-supply
+ - vdd-supply
+ - nvidia,ddc-i2c-bus
+ - nvidia,hpd-gpio
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra124-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/gpio/tegra-gpio.h>
+
+ hdmi@54280000 {
+ compatible = "nvidia,tegra124-hdmi";
+ reg = <0x54280000 0x00040000>;
+ interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA124_CLK_HDMI>,
+ <&tegra_car TEGRA124_CLK_PLL_D2_OUT0>;
+ clock-names = "hdmi", "parent";
+ resets = <&tegra_car 51>;
+ reset-names = "hdmi";
+
+ hdmi-supply = <&vdd_5v0_hdmi>;
+ pll-supply = <&vdd_hdmi_pll>;
+ vdd-supply = <&vdd_3v3_hdmi>;
+
+ nvidia,ddc-i2c-bus = <&hdmi_ddc>;
+ nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
deleted file mode 100644
index e61999ce54e9..000000000000
--- a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.txt
+++ /dev/null
@@ -1,675 +0,0 @@
-NVIDIA Tegra host1x
-
-Required properties:
-- compatible: "nvidia,tegra<chip>-host1x"
-- reg: Physical base address and length of the controller's registers.
- For pre-Tegra186, one entry describing the whole register area.
- For Tegra186, one entry for each entry in reg-names:
- "vm" - VM region assigned to Linux
- "hypervisor" - Hypervisor region (only if Linux acts as hypervisor)
-- interrupts: The interrupt outputs from the controller.
-- #address-cells: The number of cells used to represent physical base addresses
- in the host1x address space. Should be 1.
-- #size-cells: The number of cells used to represent the size of an address
- range in the host1x address space. Should be 1.
-- ranges: The mapping of the host1x address space to the CPU address space.
-- clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
-- resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
-- reset-names: Must include the following entries:
- - host1x
- - mc
-
-Optional properties:
-- operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to HEG or core power domain.
-
-For each opp entry in 'operating-points-v2' table of host1x and its modules:
-- opp-supported-hw: One bitfield indicating:
- On Tegra20: SoC process ID mask
- On Tegra30+: SoC speedo ID mask
-
- A bitwise AND is performed against the value and if any bit
- matches, the OPP gets enabled.
-
-Each host1x client module having to perform DMA through the Memory Controller
-should have the interconnect endpoints set to the Memory Client and External
-Memory respectively.
-
-The host1x top-level node defines a number of children, each representing one
-of the following host1x client modules:
-
-- mpe: video encoder
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-mpe"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - mpe
-
- Optional properties:
- - interconnects: Must contain entry for the MPE memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to MPE power domain.
-
-- vi: video input
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-vi"
- - reg: Physical base address and length of the controller registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
- - Tegra20/Tegra30/Tegra114/Tegra124:
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - vi
- - Tegra210:
- - power-domains: Must include venc powergate node as vi is in VE partition.
-
- ports (optional node)
- vi can have optional ports node and max 6 ports are supported. Each port
- should have single 'endpoint' child node. All port nodes are grouped under
- ports node. Please refer to the bindings defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt
-
- csi (required node)
- Tegra210 has CSI part of VI sharing same host interface and register space.
- So, VI device node should have CSI child node.
-
- - csi: mipi csi interface to vi
-
- Required properties:
- - compatible: "nvidia,tegra210-csi"
- - reg: Physical base address offset to parent and length of the controller
- registers.
- - clocks: Must contain entries csi, cilab, cilcd, cile, csi_tpg clocks.
- See ../clocks/clock-bindings.txt for details.
- - power-domains: Must include sor powergate node as csicil is in
- SOR partition.
-
- channel (optional nodes)
- Maximum 6 channels are supported with each csi brick as either x4 or x2
- based on hw connectivity to sensor.
-
- Required properties:
- - reg: csi port number. Valid port numbers are 0 through 5.
- - nvidia,mipi-calibrate: Should contain a phandle and a specifier
- specifying which pads are used by this CSI port and need to be
- calibrated. See also ../display/tegra/nvidia,tegra114-mipi.txt.
-
- Each channel node must contain 2 port nodes which can be grouped
- under 'ports' node and each port should have a single child 'endpoint'
- node.
-
- ports node
- Please refer to the bindings defined in
- Documentation/devicetree/bindings/media/video-interfaces.txt
-
- ports node must contain below 2 port nodes.
- port@0 with single child 'endpoint' node always a sink.
- port@1 with single child 'endpoint' node always a source.
-
- port@0 (required node)
- Required properties:
- - reg: 0
-
- endpoint (required node)
- Required properties:
- - data-lanes: an array of data lane from 1 to 8. Valid array
- lengths are 1/2/4/8.
- - remote-endpoint: phandle to sensor 'endpoint' node.
-
- port@1 (required node)
- Required properties:
- - reg: 1
-
- endpoint (required node)
- Required properties:
- - remote-endpoint: phandle to vi port 'endpoint' node.
-
- Optional properties:
- - interconnects: Must contain entry for the VI memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to VENC power domain.
-
-- epp: encoder pre-processor
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-epp"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - epp
-
- Optional properties:
- - interconnects: Must contain entry for the EPP memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to HEG or core power domain.
-
-- isp: image signal processor
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-isp"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - isp
-
- Optional properties:
- - interconnects: Must contain entry for the ISP memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - power-domains: Phandle to VENC or core power domain.
-
-- gr2d: 2D graphics engine
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-gr2d"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - 2d
- - mc
-
- Optional properties:
- - interconnects: Must contain entry for the GR2D memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to HEG or core power domain.
-
-- gr3d: 3D graphics engine
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-gr3d"
- - reg: Physical base address and length of the controller's registers.
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- (This property may be omitted if the only clock in the list is "3d")
- - 3d
- This MUST be the first entry.
- - 3d2 (Only required on SoCs with two 3D clocks)
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - 3d
- - 3d2 (Only required on SoCs with two 3D clocks)
- - mc
- - mc2 (Only required on SoCs with two 3D clocks)
-
- Optional properties:
- - interconnects: Must contain entry for the GR3D memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandles to 3D or core power domain.
-
-- dc: display controller
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-dc"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- - dc
- This MUST be the first entry.
- - parent
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - dc
- - nvidia,head: The number of the display controller head. This is used to
- setup the various types of output to receive video data from the given
- head.
-
- Each display controller node has a child node, named "rgb", that represents
- the RGB output associated with the controller. It can take the following
- optional properties:
- - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
- - nvidia,edid: supplies a binary EDID blob
- - nvidia,panel: phandle of a display panel
- - interconnects: Must contain entry for the DC memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to core power domain.
-
-- hdmi: High Definition Multimedia Interface
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-hdmi"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - hdmi-supply: supply for the +5V HDMI connector pin
- - vdd-supply: regulator for supply voltage
- - pll-supply: regulator for PLL
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- - hdmi
- This MUST be the first entry.
- - parent
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - hdmi
-
- Optional properties:
- - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
- - nvidia,edid: supplies a binary EDID blob
- - nvidia,panel: phandle of a display panel
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
-
-- tvo: TV encoder output
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-tvo"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain one entry, for the module clock.
- See ../clocks/clock-bindings.txt for details.
-
- Optional properties:
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
- - power-domains: Phandle to core power domain.
-
-- dsi: display serial interface
-
- Required properties:
- - compatible: "nvidia,tegra<chip>-dsi"
- - reg: Physical base address and length of the controller's registers.
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- - dsi
- This MUST be the first entry.
- - lp
- - parent
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - dsi
- - avdd-dsi-supply: phandle of a supply that powers the DSI controller
- - nvidia,mipi-calibrate: Should contain a phandle and a specifier specifying
- which pads are used by this DSI output and need to be calibrated. See also
- ../display/tegra/nvidia,tegra114-mipi.txt.
-
- Optional properties:
- - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
- - nvidia,edid: supplies a binary EDID blob
- - nvidia,panel: phandle of a display panel
- - nvidia,ganged-mode: contains a phandle to a second DSI controller to gang
- up with in order to support up to 8 data lanes
- - operating-points-v2: See ../bindings/opp/opp.txt for details.
-
-- sor: serial output resource
-
- Required properties:
- - compatible: Should be:
- - "nvidia,tegra124-sor": for Tegra124 and Tegra132
- - "nvidia,tegra132-sor": for Tegra132
- - "nvidia,tegra210-sor": for Tegra210
- - "nvidia,tegra210-sor1": for Tegra210
- - "nvidia,tegra186-sor": for Tegra186
- - "nvidia,tegra186-sor1": for Tegra186
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- - sor: clock input for the SOR hardware
- - out: SOR output clock
- - parent: input for the pixel clock
- - dp: reference clock for the SOR clock
- - safe: safe reference for the SOR clock during power up
-
- For Tegra186 and later:
- - pad: SOR pad output clock (on Tegra186 and later)
-
- Obsolete:
- - source: source clock for the SOR clock (obsolete, use "out" instead)
-
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - sor
-
- Required properties on Tegra186 and later:
- - nvidia,interface: index of the SOR interface
-
- Optional properties:
- - nvidia,ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
- - nvidia,hpd-gpio: specifies a GPIO used for hotplug detection
- - nvidia,edid: supplies a binary EDID blob
- - nvidia,panel: phandle of a display panel
- - nvidia,xbar-cfg: 5 cells containing the crossbar configuration. Each lane
- of the SOR, identified by the cell's index, is mapped via the crossbar to
- the pad specified by the cell's value.
-
- Optional properties when driving an eDP output:
- - nvidia,dpaux: phandle to a DispayPort AUX interface
-
-- dpaux: DisplayPort AUX interface
- - compatible : Should contain one of the following:
- - "nvidia,tegra124-dpaux": for Tegra124 and Tegra132
- - "nvidia,tegra210-dpaux": for Tegra210
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- - dpaux: clock input for the DPAUX hardware
- - parent: reference clock
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - dpaux
- - vdd-supply: phandle of a supply that powers the DisplayPort link
- - i2c-bus: Subnode where I2C slave devices are listed. This subnode
- must be always present. If there are no I2C slave devices, an empty
- node should be added. See ../../i2c/i2c.txt for more information.
-
- See ../pinctrl/nvidia,tegra124-dpaux-padctl.txt for information
- regarding the DPAUX pad controller bindings.
-
-- vic: Video Image Compositor
- - compatible : "nvidia,tegra<chip>-vic"
- - reg: Physical base address and length of the controller's registers.
- - interrupts: The interrupt outputs from the controller.
- - clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
- - clock-names: Must include the following entries:
- - vic: clock input for the VIC hardware
- - resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
- - reset-names: Must include the following entries:
- - vic
-
- Optional properties:
- - interconnects: Must contain entry for the VIC memory clients.
- - interconnect-names: Must include name of the interconnect path for each
- interconnect entry. Consult TRM documentation for information about
- available memory clients, see MEMORY CONTROLLER section.
-
-Example:
-
-/ {
- ...
-
- host1x {
- compatible = "nvidia,tegra20-host1x", "simple-bus";
- reg = <0x50000000 0x00024000>;
- interrupts = <0 65 0x04 /* mpcore syncpt */
- 0 67 0x04>; /* mpcore general */
- clocks = <&tegra_car TEGRA20_CLK_HOST1X>;
- resets = <&tegra_car 28>;
- reset-names = "host1x";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
-
- #address-cells = <1>;
- #size-cells = <1>;
-
- ranges = <0x54000000 0x54000000 0x04000000>;
-
- mpe {
- compatible = "nvidia,tegra20-mpe";
- reg = <0x54040000 0x00040000>;
- interrupts = <0 68 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_MPE>;
- resets = <&tegra_car 60>;
- reset-names = "mpe";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
- };
-
- vi@54080000 {
- compatible = "nvidia,tegra210-vi";
- reg = <0x0 0x54080000 0x0 0x700>;
- interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
- assigned-clocks = <&tegra_car TEGRA210_CLK_VI>;
- assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT0>;
- operating-points-v2 = <&dvfs_opp_table>;
-
- clocks = <&tegra_car TEGRA210_CLK_VI>;
- power-domains = <&pd_venc>;
-
- #address-cells = <1>;
- #size-cells = <1>;
-
- ranges = <0x0 0x0 0x54080000 0x2000>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- imx219_vi_in0: endpoint {
- remote-endpoint = <&imx219_csi_out0>;
- };
- };
- };
-
- csi@838 {
- compatible = "nvidia,tegra210-csi";
- reg = <0x838 0x1300>;
- assigned-clocks = <&tegra_car TEGRA210_CLK_CILAB>,
- <&tegra_car TEGRA210_CLK_CILCD>,
- <&tegra_car TEGRA210_CLK_CILE>,
- <&tegra_car TEGRA210_CLK_CSI_TPG>;
- assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_P>,
- <&tegra_car TEGRA210_CLK_PLL_P>,
- <&tegra_car TEGRA210_CLK_PLL_P>;
- assigned-clock-rates = <102000000>,
- <102000000>,
- <102000000>,
- <972000000>;
-
- clocks = <&tegra_car TEGRA210_CLK_CSI>,
- <&tegra_car TEGRA210_CLK_CILAB>,
- <&tegra_car TEGRA210_CLK_CILCD>,
- <&tegra_car TEGRA210_CLK_CILE>,
- <&tegra_car TEGRA210_CLK_CSI_TPG>;
- clock-names = "csi", "cilab", "cilcd", "cile", "csi_tpg";
- power-domains = <&pd_sor>;
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- channel@0 {
- reg = <0>;
- nvidia,mipi-calibrate = <&mipi 0x001>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- imx219_csi_in0: endpoint {
- data-lanes = <1 2>;
- remote-endpoint = <&imx219_out0>;
- };
- };
-
- port@1 {
- reg = <1>;
- imx219_csi_out0: endpoint {
- remote-endpoint = <&imx219_vi_in0>;
- };
- };
- };
- };
- };
- };
-
- epp {
- compatible = "nvidia,tegra20-epp";
- reg = <0x540c0000 0x00040000>;
- interrupts = <0 70 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_EPP>;
- resets = <&tegra_car 19>;
- reset-names = "epp";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
- };
-
- isp {
- compatible = "nvidia,tegra20-isp";
- reg = <0x54100000 0x00040000>;
- interrupts = <0 71 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_ISP>;
- resets = <&tegra_car 23>;
- reset-names = "isp";
- };
-
- gr2d {
- compatible = "nvidia,tegra20-gr2d";
- reg = <0x54140000 0x00040000>;
- interrupts = <0 72 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_GR2D>;
- resets = <&tegra_car 21>;
- reset-names = "2d";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
- };
-
- gr3d {
- compatible = "nvidia,tegra20-gr3d";
- reg = <0x54180000 0x00040000>;
- clocks = <&tegra_car TEGRA20_CLK_GR3D>;
- resets = <&tegra_car 24>;
- reset-names = "3d";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
- };
-
- dc@54200000 {
- compatible = "nvidia,tegra20-dc";
- reg = <0x54200000 0x00040000>;
- interrupts = <0 73 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_DISP1>,
- <&tegra_car TEGRA20_CLK_PLL_P>;
- clock-names = "dc", "parent";
- resets = <&tegra_car 27>;
- reset-names = "dc";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
-
- interconnects = <&mc TEGRA20_MC_DISPLAY0A &emc>,
- <&mc TEGRA20_MC_DISPLAY0B &emc>,
- <&mc TEGRA20_MC_DISPLAY0C &emc>,
- <&mc TEGRA20_MC_DISPLAYHC &emc>;
- interconnect-names = "wina",
- "winb",
- "winc",
- "cursor";
-
- rgb {
- status = "disabled";
- };
- };
-
- dc@54240000 {
- compatible = "nvidia,tegra20-dc";
- reg = <0x54240000 0x00040000>;
- interrupts = <0 74 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_DISP2>,
- <&tegra_car TEGRA20_CLK_PLL_P>;
- clock-names = "dc", "parent";
- resets = <&tegra_car 26>;
- reset-names = "dc";
- operating-points-v2 = <&dvfs_opp_table>;
- power-domains = <&domain>;
-
- interconnects = <&mc TEGRA20_MC_DISPLAY0AB &emc>,
- <&mc TEGRA20_MC_DISPLAY0BB &emc>,
- <&mc TEGRA20_MC_DISPLAY0CB &emc>,
- <&mc TEGRA20_MC_DISPLAYHCB &emc>;
- interconnect-names = "wina",
- "winb",
- "winc",
- "cursor";
-
- rgb {
- status = "disabled";
- };
- };
-
- hdmi {
- compatible = "nvidia,tegra20-hdmi";
- reg = <0x54280000 0x00040000>;
- interrupts = <0 75 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_HDMI>,
- <&tegra_car TEGRA20_CLK_PLL_D_OUT0>;
- clock-names = "hdmi", "parent";
- resets = <&tegra_car 51>;
- reset-names = "hdmi";
- status = "disabled";
- operating-points-v2 = <&dvfs_opp_table>;
- };
-
- tvo {
- compatible = "nvidia,tegra20-tvo";
- reg = <0x542c0000 0x00040000>;
- interrupts = <0 76 0x04>;
- clocks = <&tegra_car TEGRA20_CLK_TVO>;
- status = "disabled";
- operating-points-v2 = <&dvfs_opp_table>;
- };
-
- dsi {
- compatible = "nvidia,tegra20-dsi";
- reg = <0x54300000 0x00040000>;
- clocks = <&tegra_car TEGRA20_CLK_DSI>,
- <&tegra_car TEGRA20_CLK_PLL_D_OUT0>;
- clock-names = "dsi", "parent";
- resets = <&tegra_car 48>;
- reset-names = "dsi";
- status = "disabled";
- operating-points-v2 = <&dvfs_opp_table>;
- };
- };
-
- ...
-};
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
new file mode 100644
index 000000000000..913ca104c871
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-host1x.yaml
@@ -0,0 +1,431 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-host1x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra host1x controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+description: The host1x top-level node defines a number of children, each
+ representing one of the host1x client modules defined in this binding.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - nvidia,tegra20-host1x
+ - nvidia,tegra30-host1x
+ - nvidia,tegra114-host1x
+ - nvidia,tegra124-host1x
+ - nvidia,tegra210-host1x
+ - nvidia,tegra186-host1x
+ - nvidia,tegra194-host1x
+ - nvidia,tegra234-host1x
+
+ - items:
+ - const: nvidia,tegra132-host1x
+ - const: nvidia,tegra124-host1x
+
+ reg:
+ minItems: 1
+ maxItems: 3
+
+ reg-names:
+ minItems: 1
+ maxItems: 3
+
+ interrupts:
+ minItems: 1
+ maxItems: 9
+
+ interrupt-names:
+ minItems: 1
+ maxItems: 9
+
+ '#address-cells':
+ description: The number of cells used to represent physical base addresses
+ in the host1x address space.
+ enum: [1, 2]
+
+ '#size-cells':
+ description: The number of cells used to represent the size of an address
+ range in the host1x address space.
+ enum: [1, 2]
+
+ ranges:
+ maxItems: 1
+
+ clocks:
+ description: Must contain one entry, for the module clock. See
+ ../clocks/clock-bindings.txt for details.
+
+ clock-names:
+ items:
+ - const: host1x
+
+ resets:
+ minItems: 1 # MC reset is optional on Tegra186 and later
+ items:
+ - description: module reset
+ - description: memory client hotflush reset
+
+ reset-names:
+ minItems: 1 # MC reset is optional on Tegra186 and later
+ items:
+ - const: host1x
+ - const: mc
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: memory read client for host1x
+
+ interconnect-names:
+ items:
+ - const: dma-mem # read
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the HEG or core power domain
+
+required:
+ - compatible
+ - interrupts
+ - interrupt-names
+ - '#address-cells'
+ - '#size-cells'
+ - ranges
+ - reg
+ - clocks
+ - clock-names
+
+unevaluatedProperties:
+ type: object
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-host1x
+ - nvidia,tegra30-host1x
+ - nvidia,tegra114-host1x
+ - nvidia,tegra124-host1x
+ - nvidia,tegra210-host1x
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: host1x syncpoint interrupt
+ - description: host1x general interrupt
+
+ interrupt-names:
+ items:
+ - const: syncpt
+ - const: host1x
+ required:
+ - resets
+ - reset-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra186-host1x
+ - nvidia,tegra194-host1x
+ then:
+ properties:
+ reg-names:
+ items:
+ - const: hypervisor
+ - const: vm
+
+ reg:
+ items:
+ - description: region used by the hypervisor
+ - description: region assigned to the virtual machine
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: host1x syncpoint interrupt
+ - description: host1x general interrupt
+
+ interrupt-names:
+ items:
+ - const: syncpt
+ - const: host1x
+
+ iommu-map:
+ description: Specification of stream IDs available for memory context device
+ use. Should be a mapping of IDs 0..n to IOMMU entries corresponding to
+ usable stream IDs.
+
+ required:
+ - reg-names
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra234-host1x
+ then:
+ properties:
+ reg-names:
+ items:
+ - const: common
+ - const: hypervisor
+ - const: vm
+
+ reg:
+ items:
+ - description: region used by host1x server
+ - description: region used by the hypervisor
+ - description: region assigned to the virtual machine
+
+ interrupts:
+ items:
+ - description: host1x syncpoint interrupt 0
+ - description: host1x syncpoint interrupt 1
+ - description: host1x syncpoint interrupt 2
+ - description: host1x syncpoint interrupt 3
+ - description: host1x syncpoint interrupt 4
+ - description: host1x syncpoint interrupt 5
+ - description: host1x syncpoint interrupt 6
+ - description: host1x syncpoint interrupt 7
+ - description: host1x general interrupt
+
+ interrupt-names:
+ items:
+ - const: syncpt0
+ - const: syncpt1
+ - const: syncpt2
+ - const: syncpt3
+ - const: syncpt4
+ - const: syncpt5
+ - const: syncpt6
+ - const: syncpt7
+ - const: host1x
+
+ iommu-map:
+ description: Specification of stream IDs available for memory context device
+ use. Should be a mapping of IDs 0..n to IOMMU entries corresponding to
+ usable stream IDs.
+
+ required:
+ - reg-names
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/gpio/tegra-gpio.h>
+ #include <dt-bindings/memory/tegra20-mc.h>
+
+ host1x@50000000 {
+ compatible = "nvidia,tegra20-host1x";
+ reg = <0x50000000 0x00024000>;
+ interrupts = <0 65 0x04>, /* mpcore syncpt */
+ <0 67 0x04>; /* mpcore general */
+ interrupt-names = "syncpt", "host1x";
+ clocks = <&tegra_car TEGRA20_CLK_HOST1X>;
+ clock-names = "host1x";
+ resets = <&tegra_car 28>, <&mc TEGRA20_MC_RESET_HC>;
+ reset-names = "host1x", "mc";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x54000000 0x54000000 0x04000000>;
+
+ mpe@54040000 {
+ compatible = "nvidia,tegra20-mpe";
+ reg = <0x54040000 0x00040000>;
+ interrupts = <0 68 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_MPE>;
+ resets = <&tegra_car 60>;
+ reset-names = "mpe";
+ };
+
+ vi@54080000 {
+ compatible = "nvidia,tegra20-vi";
+ reg = <0x54080000 0x00040000>;
+ interrupts = <0 69 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_VI>;
+ resets = <&tegra_car 100>;
+ reset-names = "vi";
+ };
+
+ epp@540c0000 {
+ compatible = "nvidia,tegra20-epp";
+ reg = <0x540c0000 0x00040000>;
+ interrupts = <0 70 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_EPP>;
+ resets = <&tegra_car 19>;
+ reset-names = "epp";
+ };
+
+ isp@54100000 {
+ compatible = "nvidia,tegra20-isp";
+ reg = <0x54100000 0x00040000>;
+ interrupts = <0 71 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_ISP>;
+ resets = <&tegra_car 23>;
+ reset-names = "isp";
+ };
+
+ gr2d@54140000 {
+ compatible = "nvidia,tegra20-gr2d";
+ reg = <0x54140000 0x00040000>;
+ interrupts = <0 72 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_GR2D>;
+ resets = <&tegra_car 21>, <&mc TEGRA20_MC_RESET_2D>;
+ reset-names = "2d", "mc";
+ };
+
+ gr3d@54180000 {
+ compatible = "nvidia,tegra20-gr3d";
+ reg = <0x54180000 0x00040000>;
+ clocks = <&tegra_car TEGRA20_CLK_GR3D>;
+ resets = <&tegra_car 24>, <&mc TEGRA20_MC_RESET_3D>;
+ reset-names = "3d", "mc";
+ };
+
+ dc@54200000 {
+ compatible = "nvidia,tegra20-dc";
+ reg = <0x54200000 0x00040000>;
+ interrupts = <0 73 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_DISP1>;
+ clock-names = "dc";
+ resets = <&tegra_car 27>;
+ reset-names = "dc";
+
+ rgb {
+ };
+ };
+
+ dc@54240000 {
+ compatible = "nvidia,tegra20-dc";
+ reg = <0x54240000 0x00040000>;
+ interrupts = <0 74 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_DISP2>;
+ clock-names = "dc";
+ resets = <&tegra_car 26>;
+ reset-names = "dc";
+
+ rgb {
+ };
+ };
+
+ hdmi@54280000 {
+ compatible = "nvidia,tegra20-hdmi";
+ reg = <0x54280000 0x00040000>;
+ interrupts = <0 75 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_HDMI>,
+ <&tegra_car TEGRA20_CLK_PLL_D_OUT0>;
+ clock-names = "hdmi", "parent";
+ resets = <&tegra_car 51>;
+ reset-names = "hdmi";
+
+ hdmi-supply = <&vdd_5v0_hdmi>;
+ pll-supply = <&vdd_hdmi_pll>;
+ vdd-supply = <&vdd_3v3_hdmi>;
+
+ nvidia,ddc-i2c-bus = <&hdmi_ddc>;
+ nvidia,hpd-gpio = <&gpio TEGRA_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
+ };
+
+ tvo@542c0000 {
+ compatible = "nvidia,tegra20-tvo";
+ reg = <0x542c0000 0x00040000>;
+ interrupts = <0 76 0x04>;
+ clocks = <&tegra_car TEGRA20_CLK_TVO>;
+ };
+
+ dsi@54300000 {
+ compatible = "nvidia,tegra20-dsi";
+ reg = <0x54300000 0x00040000>;
+ clocks = <&tegra_car TEGRA20_CLK_DSI>,
+ <&tegra_car TEGRA20_CLK_PLL_D_OUT0>;
+ clock-names = "dsi", "parent";
+ resets = <&tegra_car 48>;
+ reset-names = "dsi";
+ };
+ };
+
+ - |
+ #include <dt-bindings/clock/tegra210-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/tegra210-mc.h>
+
+ host1x@50000000 {
+ compatible = "nvidia,tegra210-host1x";
+ reg = <0x50000000 0x00024000>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>, /* mpcore syncpt */
+ <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; /* mpcore general */
+ interrupt-names = "syncpt", "host1x";
+ clocks = <&tegra_car TEGRA210_CLK_HOST1X>;
+ clock-names = "host1x";
+ resets = <&tegra_car 28>;
+ reset-names = "host1x";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x54000000 0x54000000 0x01000000>;
+ iommus = <&mc TEGRA_SWGROUP_HC>;
+
+ vi@54080000 {
+ compatible = "nvidia,tegra210-vi";
+ reg = <0x54080000 0x00000700>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ assigned-clocks = <&tegra_car TEGRA210_CLK_VI>;
+ assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT0>;
+
+ clocks = <&tegra_car TEGRA210_CLK_VI>;
+ power-domains = <&pd_venc>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x0 0x54080000 0x2000>;
+
+ csi@838 {
+ compatible = "nvidia,tegra210-csi";
+ reg = <0x838 0x1300>;
+ assigned-clocks = <&tegra_car TEGRA210_CLK_CILAB>,
+ <&tegra_car TEGRA210_CLK_CILCD>,
+ <&tegra_car TEGRA210_CLK_CILE>,
+ <&tegra_car TEGRA210_CLK_CSI_TPG>;
+ assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_P>,
+ <&tegra_car TEGRA210_CLK_PLL_P>,
+ <&tegra_car TEGRA210_CLK_PLL_P>;
+ assigned-clock-rates = <102000000>,
+ <102000000>,
+ <102000000>,
+ <972000000>;
+
+ clocks = <&tegra_car TEGRA210_CLK_CSI>,
+ <&tegra_car TEGRA210_CLK_CILAB>,
+ <&tegra_car TEGRA210_CLK_CILCD>,
+ <&tegra_car TEGRA210_CLK_CILE>,
+ <&tegra_car TEGRA210_CLK_CSI_TPG>;
+ clock-names = "csi", "cilab", "cilcd", "cile", "csi_tpg";
+ power-domains = <&pd_sor>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-isp.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-isp.yaml
new file mode 100644
index 000000000000..3bc3b22e98e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-isp.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-isp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra ISP processor
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ compatible:
+ enum:
+ - nvidia,tegra20-isp
+ - nvidia,tegra30-isp
+ - nvidia,tegra210-isp
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: isp
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ items:
+ - description: memory write client
+
+ interconnect-names:
+ items:
+ - const: dma-mem # write
+
+ power-domains:
+ items:
+ - description: phandle to the VENC or core power domain
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ isp@54100000 {
+ compatible = "nvidia,tegra20-isp";
+ reg = <0x54100000 0x00040000>;
+ interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_ISP>;
+ resets = <&tegra_car 23>;
+ reset-names = "isp";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-mpe.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-mpe.yaml
new file mode 100644
index 000000000000..5f4f0fb4b692
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-mpe.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-mpe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Video Encoder
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^mpe@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra20-mpe
+ - nvidia,tegra30-mpe
+ - nvidia,tegra114-mpe
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: mpe
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ maxItems: 6
+
+ interconnect-names:
+ maxItems: 6
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the MPE power domain
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ mpe@54040000 {
+ compatible = "nvidia,tegra20-mpe";
+ reg = <0x54040000 0x00040000>;
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_MPE>;
+ resets = <&tegra_car 60>;
+ reset-names = "mpe";
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-tvo.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-tvo.yaml
new file mode 100644
index 000000000000..467b015e5700
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-tvo.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-tvo.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra TV Encoder Output
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^tvo@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra20-tvo
+ - nvidia,tegra30-tvo
+ - nvidia,tegra114-tvo
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the core power domain
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ tvo@542c0000 {
+ compatible = "nvidia,tegra20-tvo";
+ reg = <0x542c0000 0x00040000>;
+ interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_TVO>;
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml
new file mode 100644
index 000000000000..782a4b10150a
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra20-vi.yaml
@@ -0,0 +1,163 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra20-vi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Video Input controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^vi@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - const: nvidia,tegra20-vi
+ - const: nvidia,tegra30-vi
+ - const: nvidia,tegra114-vi
+ - const: nvidia,tegra124-vi
+ - items:
+ - const: nvidia,tegra132-vi
+ - const: nvidia,tegra124-vi
+ - const: nvidia,tegra210-vi
+ - const: nvidia,tegra186-vi
+ - const: nvidia,tegra194-vi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: vi
+
+ iommus:
+ maxItems: 1
+
+ interconnects:
+ minItems: 4
+ maxItems: 5
+
+ interconnect-names:
+ minItems: 4
+ maxItems: 5
+
+ operating-points-v2:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+
+ power-domains:
+ items:
+ - description: phandle to the VENC power domain
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges:
+ maxItems: 1
+
+ avdd-dsi-csi-supply:
+ description: DSI/CSI power supply. Must supply 1.2 V.
+
+patternProperties:
+ "^csi@[0-9a-f]+$":
+ type: object
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nvidia,tegra20-vi
+ - nvidia,tegra30-vi
+ - nvidia,tegra114-vi
+ - nvidia,tegra124-vi
+ then:
+ required:
+ - resets
+ - reset-names
+ else:
+ required:
+ - power-domains
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra20-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ vi@54080000 {
+ compatible = "nvidia,tegra20-vi";
+ reg = <0x54080000 0x00040000>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&tegra_car TEGRA20_CLK_VI>;
+ resets = <&tegra_car 100>;
+ reset-names = "vi";
+ };
+
+ - |
+ #include <dt-bindings/clock/tegra210-car.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ vi@54080000 {
+ compatible = "nvidia,tegra210-vi";
+ reg = <0x54080000 0x00000700>;
+ interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+ assigned-clocks = <&tegra_car TEGRA210_CLK_VI>;
+ assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_C4_OUT0>;
+
+ clocks = <&tegra_car TEGRA210_CLK_VI>;
+ power-domains = <&pd_venc>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x0 0x54080000 0x2000>;
+
+ csi@838 {
+ compatible = "nvidia,tegra210-csi";
+ reg = <0x838 0x1300>;
+ assigned-clocks = <&tegra_car TEGRA210_CLK_CILAB>,
+ <&tegra_car TEGRA210_CLK_CILCD>,
+ <&tegra_car TEGRA210_CLK_CILE>,
+ <&tegra_car TEGRA210_CLK_CSI_TPG>;
+ assigned-clock-parents = <&tegra_car TEGRA210_CLK_PLL_P>,
+ <&tegra_car TEGRA210_CLK_PLL_P>,
+ <&tegra_car TEGRA210_CLK_PLL_P>;
+ assigned-clock-rates = <102000000>,
+ <102000000>,
+ <102000000>,
+ <972000000>;
+
+ clocks = <&tegra_car TEGRA210_CLK_CSI>,
+ <&tegra_car TEGRA210_CLK_CILAB>,
+ <&tegra_car TEGRA210_CLK_CILCD>,
+ <&tegra_car TEGRA210_CLK_CILE>,
+ <&tegra_car TEGRA210_CLK_CSI_TPG>;
+ clock-names = "csi", "cilab", "cilcd", "cile", "csi_tpg";
+ power-domains = <&pd_sor>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/display/tegra/nvidia,tegra210-csi.yaml b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra210-csi.yaml
new file mode 100644
index 000000000000..fa07a40d1004
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/tegra/nvidia,tegra210-csi.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/tegra/nvidia,tegra210-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra CSI controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ $nodename:
+ pattern: "^csi@[0-9a-f]+$"
+
+ compatible:
+ enum:
+ - nvidia,tegra210-csi
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: module clock
+ - description: A/B lanes clock
+ - description: C/D lanes clock
+ - description: E lane clock
+ - description: test pattern generator clock
+
+ clock-names:
+ items:
+ - const: csi
+ - const: cilab
+ - const: cilcd
+ - const: cile
+ - const: csi_tpg
+
+ power-domains:
+ maxItems: 1
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - power-domains
+
+# see nvidia,tegra20-vi.yaml for an example
diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml
index 83808199657b..26d0d8ab7984 100644
--- a/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/allwinner,sun4i-a10-dma.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/dma/allwinner,sun4i-a10-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 DMA Controller Device Tree Bindings
+title: Allwinner A10 DMA Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml
index e712444abff1..bd599bda2653 100644
--- a/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/allwinner,sun50i-a64-dma.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/dma/allwinner,sun50i-a64-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A64 DMA Controller Device Tree Bindings
+title: Allwinner A64 DMA Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml b/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml
index a6df6f8b54db..344dc7e04931 100644
--- a/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/allwinner,sun6i-a31-dma.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/dma/allwinner,sun6i-a31-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 DMA Controller Device Tree Bindings
+title: Allwinner A31 DMA Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/dma/apple,admac.yaml b/Documentation/devicetree/bindings/dma/apple,admac.yaml
new file mode 100644
index 000000000000..3b1e667f7ea0
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/apple,admac.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/apple,admac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple Audio DMA Controller (ADMAC)
+
+description: |
+ Apple's Audio DMA Controller (ADMAC) is used to fetch and store audio samples
+ on SoCs from the "Apple Silicon" family.
+
+ The controller has been seen with up to 24 channels. Even-numbered channels
+ are TX-only, odd-numbered are RX-only. Individual channels are coupled to
+ fixed device endpoints.
+
+maintainers:
+ - Martin Povišer <povik+lin@cutebit.org>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t6000-admac
+ - apple,t8103-admac
+ - const: apple,admac
+
+ reg:
+ maxItems: 1
+
+ '#dma-cells':
+ const: 1
+ description:
+ Clients specify a single cell with channel number.
+
+ dma-channels:
+ maximum: 24
+
+ interrupts:
+ minItems: 4
+ maxItems: 4
+ description:
+ Interrupts that correspond to the 4 IRQ outputs of the controller. Usually
+ only one of the controller outputs will be connected as an usable interrupt
+ source. The remaining interrupts will be left without a valid value, e.g.
+ in an interrupts-extended list the disconnected positions will contain
+ an empty phandle reference <0>.
+
+ iommus:
+ minItems: 1
+ maxItems: 2
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - '#dma-cells'
+ - dma-channels
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/apple-aic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ aic: interrupt-controller {
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ };
+
+ admac: dma-controller@238200000 {
+ compatible = "apple,t8103-admac", "apple,admac";
+ reg = <0x38200000 0x34000>;
+ dma-channels = <24>;
+ interrupts-extended = <0>,
+ <&aic AIC_IRQ 626 IRQ_TYPE_LEVEL_HIGH>,
+ <0>,
+ <0>;
+ #dma-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/dma/arm,pl330.yaml b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
index 2bec69b308f8..4a3dd6f5309b 100644
--- a/Documentation/devicetree/bindings/dma/arm,pl330.yaml
+++ b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
@@ -55,6 +55,12 @@ properties:
dma-coherent: true
+ iommus:
+ minItems: 1
+ maxItems: 9
+ description: Up to 1 IOMMU entry per DMA channel for writes and 1
+ IOMMU entry for reads.
+
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
new file mode 100644
index 000000000000..050e6cd57727
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
@@ -0,0 +1,155 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/fsl,edma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale enhanced Direct Memory Access(eDMA) Controller
+
+description: |
+ The eDMA channels have multiplex capability by programmable
+ memory-mapped registers. channels are split into two groups, called
+ DMAMUX0 and DMAMUX1, specific DMA request source can only be multiplexed
+ by any channel of certain group, DMAMUX0 or DMAMUX1, but not both.
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,vf610-edma
+ - fsl,imx7ulp-edma
+ - items:
+ - const: fsl,ls1028a-edma
+ - const: fsl,vf610-edma
+
+ reg:
+ minItems: 2
+ maxItems: 3
+
+ interrupts:
+ minItems: 2
+ maxItems: 17
+
+ interrupt-names:
+ minItems: 2
+ maxItems: 17
+
+ "#dma-cells":
+ const: 2
+
+ dma-channels:
+ const: 32
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ maxItems: 2
+
+ big-endian:
+ description: |
+ If present registers and hardware scatter/gather descriptors of the
+ eDMA are implemented in big endian mode, otherwise in little mode.
+ type: boolean
+
+required:
+ - "#dma-cells"
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - dma-channels
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,vf610-edma
+ then:
+ properties:
+ clock-names:
+ items:
+ - const: dmamux0
+ - const: dmamux1
+ interrupts:
+ maxItems: 2
+ interrupt-names:
+ items:
+ - const: edma-tx
+ - const: edma-err
+ reg:
+ maxItems: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx7ulp-edma
+ then:
+ properties:
+ clock-names:
+ items:
+ - const: dma
+ - const: dmamux0
+ interrupts:
+ maxItems: 17
+ reg:
+ maxItems: 2
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/vf610-clock.h>
+
+ edma0: dma-controller@40018000 {
+ #dma-cells = <2>;
+ compatible = "fsl,vf610-edma";
+ reg = <0x40018000 0x2000>,
+ <0x40024000 0x1000>,
+ <0x40025000 0x1000>;
+ interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>,
+ <0 9 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "edma-tx", "edma-err";
+ dma-channels = <32>;
+ clock-names = "dmamux0", "dmamux1";
+ clocks = <&clks VF610_CLK_DMAMUX0>, <&clks VF610_CLK_DMAMUX1>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/imx7ulp-clock.h>
+
+ edma1: dma-controller@40080000 {
+ #dma-cells = <2>;
+ compatible = "fsl,imx7ulp-edma";
+ reg = <0x40080000 0x2000>,
+ <0x40210000 0x1000>;
+ dma-channels = <32>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
+ /* last is eDMA2-ERR interrupt */
+ <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "dma", "dmamux0";
+ clocks = <&pcc2 IMX7ULP_CLK_DMA1>, <&pcc2 IMX7ULP_CLK_DMA_MUX1>;
+ };
diff --git a/Documentation/devicetree/bindings/dma/fsl-edma.txt b/Documentation/devicetree/bindings/dma/fsl-edma.txt
deleted file mode 100644
index ee1754739b4b..000000000000
--- a/Documentation/devicetree/bindings/dma/fsl-edma.txt
+++ /dev/null
@@ -1,111 +0,0 @@
-* Freescale enhanced Direct Memory Access(eDMA) Controller
-
- The eDMA channels have multiplex capability by programmble memory-mapped
-registers. channels are split into two groups, called DMAMUX0 and DMAMUX1,
-specific DMA request source can only be multiplexed by any channel of certain
-group, DMAMUX0 or DMAMUX1, but not both.
-
-* eDMA Controller
-Required properties:
-- compatible :
- - "fsl,vf610-edma" for eDMA used similar to that on Vybrid vf610 SoC
- - "fsl,imx7ulp-edma" for eDMA2 used similar to that on i.mx7ulp
- - "fsl,ls1028a-edma" followed by "fsl,vf610-edma" for eDMA used on the
- LS1028A SoC.
-- reg : Specifies base physical address(s) and size of the eDMA registers.
- The 1st region is eDMA control register's address and size.
- The 2nd and the 3rd regions are programmable channel multiplexing
- control register's address and size.
-- interrupts : A list of interrupt-specifiers, one for each entry in
- interrupt-names on vf610 similar SoC. But for i.mx7ulp per channel
- per transmission interrupt, total 16 channel interrupt and 1
- error interrupt(located in the last), no interrupt-names list on
- i.mx7ulp for clean on dts.
-- #dma-cells : Must be <2>.
- The 1st cell specifies the DMAMUX(0 for DMAMUX0 and 1 for DMAMUX1).
- Specific request source can only be multiplexed by specific channels
- group called DMAMUX.
- The 2nd cell specifies the request source(slot) ID.
- See the SoC's reference manual for all the supported request sources.
-- dma-channels : Number of channels supported by the controller
-- clock-names : A list of channel group clock names. Should contain:
- "dmamux0" - clock name of mux0 group
- "dmamux1" - clock name of mux1 group
- Note: No dmamux0 on i.mx7ulp, but another 'dma' clk added on i.mx7ulp.
-- clocks : A list of phandle and clock-specifier pairs, one for each entry in
- clock-names.
-
-Optional properties:
-- big-endian: If present registers and hardware scatter/gather descriptors
- of the eDMA are implemented in big endian mode, otherwise in little
- mode.
-- interrupt-names : Should contain the below on vf610 similar SoC but not used
- on i.mx7ulp similar SoC:
- "edma-tx" - the transmission interrupt
- "edma-err" - the error interrupt
-
-
-Examples:
-
-edma0: dma-controller@40018000 {
- #dma-cells = <2>;
- compatible = "fsl,vf610-edma";
- reg = <0x40018000 0x2000>,
- <0x40024000 0x1000>,
- <0x40025000 0x1000>;
- interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>,
- <0 9 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "edma-tx", "edma-err";
- dma-channels = <32>;
- clock-names = "dmamux0", "dmamux1";
- clocks = <&clks VF610_CLK_DMAMUX0>,
- <&clks VF610_CLK_DMAMUX1>;
-}; /* vf610 */
-
-edma1: dma-controller@40080000 {
- #dma-cells = <2>;
- compatible = "fsl,imx7ulp-edma";
- reg = <0x40080000 0x2000>,
- <0x40210000 0x1000>;
- dma-channels = <32>;
- interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>,
- /* last is eDMA2-ERR interrupt */
- <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
- clock-names = "dma", "dmamux0";
- clocks = <&pcc2 IMX7ULP_CLK_DMA1>,
- <&pcc2 IMX7ULP_CLK_DMA_MUX1>;
-}; /* i.mx7ulp */
-
-* DMA clients
-DMA client drivers that uses the DMA function must use the format described
-in the dma.txt file, using a two-cell specifier for each channel: the 1st
-specifies the channel group(DMAMUX) in which this request can be multiplexed,
-and the 2nd specifies the request source.
-
-Examples:
-
-sai2: sai@40031000 {
- compatible = "fsl,vf610-sai";
- reg = <0x40031000 0x1000>;
- interrupts = <0 86 IRQ_TYPE_LEVEL_HIGH>;
- clock-names = "sai";
- clocks = <&clks VF610_CLK_SAI2>;
- dma-names = "tx", "rx";
- dmas = <&edma0 0 21>,
- <&edma0 0 20>;
-};
diff --git a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml
index 54d68fc688b5..9ab4d81ead35 100644
--- a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml
@@ -22,6 +22,8 @@ properties:
- items:
- enum:
- mediatek,mt2712-uart-dma
+ - mediatek,mt6795-uart-dma
+ - mediatek,mt8365-uart-dma
- mediatek,mt8516-uart-dma
- const: mediatek,mt6577-uart-dma
- enum:
diff --git a/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt b/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt
index 8a9f3559335b..7e14e26676ec 100644
--- a/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt
+++ b/Documentation/devicetree/bindings/dma/moxa,moxart-dma.txt
@@ -34,8 +34,8 @@ Example:
Use specific request line passing from dma
For example, MMC request line is 5
- sdhci: sdhci@98e00000 {
- compatible = "moxa,moxart-sdhci";
+ mmc: mmc@98e00000 {
+ compatible = "moxa,moxart-mmc";
reg = <0x98e00000 0x5C>;
interrupts = <5 0>;
clocks = <&clk_apb>;
diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
index 9dd1476d1849..c8894476b6ab 100644
--- a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/dma/nvidia,tegra186-gpc-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: NVIDIA Tegra GPC DMA Controller Device Tree Bindings
+title: NVIDIA Tegra GPC DMA Controller
description: |
The Tegra General Purpose Central (GPC) DMA controller is used for faster
@@ -23,7 +23,9 @@ properties:
oneOf:
- const: nvidia,tegra186-gpcdma
- items:
- - const: nvidia,tegra194-gpcdma
+ - enum:
+ - nvidia,tegra234-gpcdma
+ - nvidia,tegra194-gpcdma
- const: nvidia,tegra186-gpcdma
"#dma-cells":
diff --git a/Documentation/devicetree/bindings/dma/qcom,adm.yaml b/Documentation/devicetree/bindings/dma/qcom,adm.yaml
new file mode 100644
index 000000000000..6a9d7bc74aff
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/qcom,adm.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/qcom,adm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm ADM DMA Controller
+
+maintainers:
+ - Christian Marangi <ansuelsmth@gmail.com>
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+ QCOM ADM DMA controller provides DMA capabilities for
+ peripheral buses such as NAND and SPI.
+
+properties:
+ compatible:
+ const: qcom,adm
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ "#dma-cells":
+ const: 1
+
+ clocks:
+ items:
+ - description: phandle to the core clock
+ - description: phandle to the iface clock
+
+ clock-names:
+ items:
+ - const: core
+ - const: iface
+
+ resets:
+ items:
+ - description: phandle to the clk reset
+ - description: phandle to the pbus reset
+ - description: phandle to the c0 reset
+ - description: phandle to the c1 reset
+ - description: phandle to the c2 reset
+
+ reset-names:
+ items:
+ - const: clk
+ - const: pbus
+ - const: c0
+ - const: c1
+ - const: c2
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: indicates the security domain identifier used in the secure world.
+ minimum: 0
+ maximum: 255
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - "#dma-cells"
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - qcom,ee
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-ipq806x.h>
+ #include <dt-bindings/reset/qcom,gcc-ipq806x.h>
+
+ adm_dma: dma-controller@18300000 {
+ compatible = "qcom,adm";
+ reg = <0x18300000 0x100000>;
+ interrupts = <0 170 0>;
+ #dma-cells = <1>;
+
+ clocks = <&gcc ADM0_CLK>,
+ <&gcc ADM0_PBUS_CLK>;
+ clock-names = "core", "iface";
+
+ resets = <&gcc ADM0_RESET>,
+ <&gcc ADM0_PBUS_RESET>,
+ <&gcc ADM0_C0_RESET>,
+ <&gcc ADM0_C1_RESET>,
+ <&gcc ADM0_C2_RESET>;
+ reset-names = "clk", "pbus", "c0", "c1", "c2";
+ qcom,ee = <0>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
new file mode 100644
index 000000000000..003098caf709
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/qcom,bam-dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies Inc BAM DMA controller
+
+maintainers:
+ - Andy Gross <agross@kernel.org>
+ - Bjorn Andersson <andersson@kernel.org>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ compatible:
+ enum:
+ # APQ8064, IPQ8064 and MSM8960
+ - qcom,bam-v1.3.0
+ # MSM8974, APQ8074 and APQ8084
+ - qcom,bam-v1.4.0
+ # MSM8916 and SDM845
+ - qcom,bam-v1.7.0
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: bam_clk
+
+ "#dma-cells":
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+ iommus:
+ minItems: 1
+ maxItems: 4
+
+ num-channels:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Indicates supported number of DMA channels in a remotely controlled bam.
+
+ qcom,controlled-remotely:
+ type: boolean
+ description:
+ Indicates that the bam is controlled by remote proccessor i.e. execution
+ environment.
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 7
+ description:
+ Indicates the active Execution Environment identifier (0-7) used in the
+ secure world.
+
+ qcom,num-ees:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Indicates supported number of Execution Environments in a remotely
+ controlled bam.
+
+ qcom,powered-remotely:
+ type: boolean
+ description:
+ Indicates that the bam is powered up by a remote processor but must be
+ initialized by the local processor.
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - "#dma-cells"
+ - interrupts
+ - qcom,ee
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/qcom,gcc-msm8974.h>
+
+ dma-controller@f9944000 {
+ compatible = "qcom,bam-v1.4.0";
+ reg = <0xf9944000 0x19000>;
+ interrupts = <GIC_SPI 239 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&gcc GCC_BLSP2_AHB_CLK>;
+ clock-names = "bam_clk";
+ #dma-cells = <1>;
+ qcom,ee = <0>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/dma/qcom,gpi.yaml b/Documentation/devicetree/bindings/dma/qcom,gpi.yaml
index 7d2fc4eb5530..eabf8a76d3a0 100644
--- a/Documentation/devicetree/bindings/dma/qcom,gpi.yaml
+++ b/Documentation/devicetree/bindings/dma/qcom,gpi.yaml
@@ -21,6 +21,7 @@ properties:
enum:
- qcom,sc7280-gpi-dma
- qcom,sdm845-gpi-dma
+ - qcom,sm6350-gpi-dma
- qcom,sm8150-gpi-dma
- qcom,sm8250-gpi-dma
- qcom,sm8350-gpi-dma
diff --git a/Documentation/devicetree/bindings/dma/qcom_adm.txt b/Documentation/devicetree/bindings/dma/qcom_adm.txt
deleted file mode 100644
index 9d3b2f917b7b..000000000000
--- a/Documentation/devicetree/bindings/dma/qcom_adm.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-QCOM ADM DMA Controller
-
-Required properties:
-- compatible: must contain "qcom,adm" for IPQ/APQ8064 and MSM8960
-- reg: Address range for DMA registers
-- interrupts: Should contain one interrupt shared by all channels
-- #dma-cells: must be <2>. First cell denotes the channel number. Second cell
- denotes CRCI (client rate control interface) flow control assignment.
-- clocks: Should contain the core clock and interface clock.
-- clock-names: Must contain "core" for the core clock and "iface" for the
- interface clock.
-- resets: Must contain an entry for each entry in reset names.
-- reset-names: Must include the following entries:
- - clk
- - c0
- - c1
- - c2
-- qcom,ee: indicates the security domain identifier used in the secure world.
-
-Example:
- adm_dma: dma@18300000 {
- compatible = "qcom,adm";
- reg = <0x18300000 0x100000>;
- interrupts = <0 170 0>;
- #dma-cells = <2>;
-
- clocks = <&gcc ADM0_CLK>, <&gcc ADM0_PBUS_CLK>;
- clock-names = "core", "iface";
-
- resets = <&gcc ADM0_RESET>,
- <&gcc ADM0_C0_RESET>,
- <&gcc ADM0_C1_RESET>,
- <&gcc ADM0_C2_RESET>;
- reset-names = "clk", "c0", "c1", "c2";
- qcom,ee = <0>;
- };
-
-DMA clients must use the format descripted in the dma.txt file, using a three
-cell specifier for each channel.
-
-Each dmas request consists of 3 cells:
- 1. phandle pointing to the DMA controller
- 2. channel number
- 3. CRCI assignment, if applicable. If no CRCI flow control is required, use 0.
- The CRCI is used for flow control. It identifies the peripheral device that
- is the source/destination for the transferred data.
-
-Example:
-
- spi4: spi@1a280000 {
- spi-max-frequency = <50000000>;
-
- pinctrl-0 = <&spi_pins>;
- pinctrl-names = "default";
-
- cs-gpios = <&qcom_pinmux 20 0>;
-
- dmas = <&adm_dma 6 9>,
- <&adm_dma 5 10>;
- dma-names = "rx", "tx";
- };
diff --git a/Documentation/devicetree/bindings/dma/qcom_bam_dma.txt b/Documentation/devicetree/bindings/dma/qcom_bam_dma.txt
deleted file mode 100644
index 6e9a5497b3f2..000000000000
--- a/Documentation/devicetree/bindings/dma/qcom_bam_dma.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-QCOM BAM DMA controller
-
-Required properties:
-- compatible: must be one of the following:
- * "qcom,bam-v1.4.0" for MSM8974, APQ8074 and APQ8084
- * "qcom,bam-v1.3.0" for APQ8064, IPQ8064 and MSM8960
- * "qcom,bam-v1.7.0" for MSM8916
-- reg: Address range for DMA registers
-- interrupts: Should contain the one interrupt shared by all channels
-- #dma-cells: must be <1>, the cell in the dmas property of the client device
- represents the channel number
-- clocks: required clock
-- clock-names: must contain "bam_clk" entry
-- qcom,ee : indicates the active Execution Environment identifier (0-7) used in
- the secure world.
-- qcom,controlled-remotely : optional, indicates that the bam is controlled by
- remote proccessor i.e. execution environment.
-- qcom,powered-remotely : optional, indicates that the bam is powered up by
- a remote processor but must be initialized by the local processor.
-- num-channels : optional, indicates supported number of DMA channels in a
- remotely controlled bam.
-- qcom,num-ees : optional, indicates supported number of Execution Environments
- in a remotely controlled bam.
-
-Example:
-
- uart-bam: dma@f9984000 = {
- compatible = "qcom,bam-v1.4.0";
- reg = <0xf9984000 0x15000>;
- interrupts = <0 94 0>;
- clocks = <&gcc GCC_BAM_DMA_AHB_CLK>;
- clock-names = "bam_clk";
- #dma-cells = <1>;
- qcom,ee = <0>;
- };
-
-DMA clients must use the format described in the dma.txt file, using a two cell
-specifier for each channel.
-
-Example:
- serial@f991e000 {
- compatible = "qcom,msm-uart";
- reg = <0xf991e000 0x1000>
- <0xf9944000 0x19000>;
- interrupts = <0 108 0>;
- clocks = <&gcc GCC_BLSP1_UART2_APPS_CLK>,
- <&gcc GCC_BLSP1_AHB_CLK>;
- clock-names = "core", "iface";
-
- dmas = <&uart-bam 0>, <&uart-bam 1>;
- dma-names = "rx", "tx";
- };
diff --git a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
index 7202cd68e759..89b591a05bce 100644
--- a/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/renesas,rcar-dmac.yaml
@@ -45,6 +45,7 @@ properties:
- enum:
- renesas,dmac-r8a779a0 # R-Car V3U
- renesas,dmac-r8a779f0 # R-Car S4-8
+ - renesas,dmac-r8a779g0 # R-Car V4H
- const: renesas,rcar-gen4-dmac # R-Car Gen4
reg: true
diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
index 4324a94b26b2..67aa7bb6d36a 100644
--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
@@ -34,7 +34,12 @@ properties:
- const: axidma_apb_regs
interrupts:
- maxItems: 1
+ description:
+ If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this
+ will be per-channel interrupts. Otherwise, this is a single combined IRQ
+ for all channels.
+ minItems: 1
+ maxItems: 8
clocks:
items:
diff --git a/Documentation/devicetree/bindings/dma/ste-dma40.txt b/Documentation/devicetree/bindings/dma/ste-dma40.txt
deleted file mode 100644
index 99ab5c4d331e..000000000000
--- a/Documentation/devicetree/bindings/dma/ste-dma40.txt
+++ /dev/null
@@ -1,138 +0,0 @@
-* DMA40 DMA Controller
-
-Required properties:
-- compatible: "stericsson,dma40"
-- reg: Address range of the DMAC registers
-- reg-names: Names of the above areas to use during resource look-up
-- interrupt: Should contain the DMAC interrupt number
-- #dma-cells: must be <3>
-- memcpy-channels: Channels to be used for memcpy
-
-Optional properties:
-- dma-channels: Number of channels supported by hardware - if not present
- the driver will attempt to obtain the information from H/W
-- disabled-channels: Channels which can not be used
-
-Example:
-
- dma: dma-controller@801c0000 {
- compatible = "stericsson,db8500-dma40", "stericsson,dma40";
- reg = <0x801C0000 0x1000 0x40010000 0x800>;
- reg-names = "base", "lcpa";
- interrupt-parent = <&intc>;
- interrupts = <0 25 0x4>;
-
- #dma-cells = <2>;
- memcpy-channels = <56 57 58 59 60>;
- disabled-channels = <12>;
- dma-channels = <8>;
- };
-
-Clients
-Required properties:
-- dmas: Comma separated list of dma channel requests
-- dma-names: Names of the aforementioned requested channels
-
-Each dmas request consists of 4 cells:
- 1. A phandle pointing to the DMA controller
- 2. Device signal number, the signal line for single and burst requests
- connected from the device to the DMA40 engine
- 3. The DMA request line number (only when 'use fixed channel' is set)
- 4. A 32bit mask specifying; mode, direction and endianness
- [NB: This list will grow]
- 0x00000001: Mode:
- Logical channel when unset
- Physical channel when set
- 0x00000002: Direction:
- Memory to Device when unset
- Device to Memory when set
- 0x00000004: Endianness:
- Little endian when unset
- Big endian when set
- 0x00000008: Use fixed channel:
- Use automatic channel selection when unset
- Use DMA request line number when set
- 0x00000010: Set channel as high priority:
- Normal priority when unset
- High priority when set
-
-Existing signal numbers for the DB8500 ASIC. Unless specified, the signals are
-bidirectional, i.e. the same for RX and TX operations:
-
-0: SPI controller 0
-1: SD/MMC controller 0 (unused)
-2: SD/MMC controller 1 (unused)
-3: SD/MMC controller 2 (unused)
-4: I2C port 1
-5: I2C port 3
-6: I2C port 2
-7: I2C port 4
-8: Synchronous Serial Port SSP0
-9: Synchronous Serial Port SSP1
-10: Multi-Channel Display Engine MCDE RX
-11: UART port 2
-12: UART port 1
-13: UART port 0
-14: Multirate Serial Port MSP2
-15: I2C port 0
-16: USB OTG in/out endpoints 7 & 15
-17: USB OTG in/out endpoints 6 & 14
-18: USB OTG in/out endpoints 5 & 13
-19: USB OTG in/out endpoints 4 & 12
-20: SLIMbus or HSI channel 0
-21: SLIMbus or HSI channel 1
-22: SLIMbus or HSI channel 2
-23: SLIMbus or HSI channel 3
-24: Multimedia DSP SXA0
-25: Multimedia DSP SXA1
-26: Multimedia DSP SXA2
-27: Multimedia DSP SXA3
-28: SD/MM controller 2
-29: SD/MM controller 0
-30: MSP port 1 on DB8500 v1, MSP port 3 on DB8500 v2
-31: MSP port 0 or SLIMbus channel 0
-32: SD/MM controller 1
-33: SPI controller 2
-34: i2c3 RX2 TX2
-35: SPI controller 1
-36: USB OTG in/out endpoints 3 & 11
-37: USB OTG in/out endpoints 2 & 10
-38: USB OTG in/out endpoints 1 & 9
-39: USB OTG in/out endpoints 8
-40: SPI controller 3
-41: SD/MM controller 3
-42: SD/MM controller 4
-43: SD/MM controller 5
-44: Multimedia DSP SXA4
-45: Multimedia DSP SXA5
-46: SLIMbus channel 8 or Multimedia DSP SXA6
-47: SLIMbus channel 9 or Multimedia DSP SXA7
-48: Crypto Accelerator 1
-49: Crypto Accelerator 1 TX or Hash Accelerator 1 TX
-50: Hash Accelerator 1 TX
-51: memcpy TX (to be used by the DMA driver for memcpy operations)
-52: SLIMbus or HSI channel 4
-53: SLIMbus or HSI channel 5
-54: SLIMbus or HSI channel 6
-55: SLIMbus or HSI channel 7
-56: memcpy (to be used by the DMA driver for memcpy operations)
-57: memcpy (to be used by the DMA driver for memcpy operations)
-58: memcpy (to be used by the DMA driver for memcpy operations)
-59: memcpy (to be used by the DMA driver for memcpy operations)
-60: memcpy (to be used by the DMA driver for memcpy operations)
-61: Crypto Accelerator 0
-62: Crypto Accelerator 0 TX or Hash Accelerator 0 TX
-63: Hash Accelerator 0 TX
-
-Example:
-
- uart@80120000 {
- compatible = "arm,pl011", "arm,primecell";
- reg = <0x80120000 0x1000>;
- interrupts = <0 11 0x4>;
-
- dmas = <&dma 13 0 0x2>, /* Logical - DevToMem */
- <&dma 13 0 0x0>; /* Logical - MemToDev */
- dma-names = "rx", "rx";
-
- };
diff --git a/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml
new file mode 100644
index 000000000000..8bddfb3b6fa0
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/stericsson,dma40.yaml
@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/stericsson,dma40.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST-Ericsson DMA40 DMA Engine
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: "dma-controller.yaml#"
+
+properties:
+ "#dma-cells":
+ const: 3
+ description: |
+ The first cell is the unique device channel number as indicated by this
+ table for DB8500 which is the only ASIC known to use DMA40:
+
+ 0: SPI controller 0
+ 1: SD/MMC controller 0 (unused)
+ 2: SD/MMC controller 1 (unused)
+ 3: SD/MMC controller 2 (unused)
+ 4: I2C port 1
+ 5: I2C port 3
+ 6: I2C port 2
+ 7: I2C port 4
+ 8: Synchronous Serial Port SSP0
+ 9: Synchronous Serial Port SSP1
+ 10: Multi-Channel Display Engine MCDE RX
+ 11: UART port 2
+ 12: UART port 1
+ 13: UART port 0
+ 14: Multirate Serial Port MSP2
+ 15: I2C port 0
+ 16: USB OTG in/out endpoints 7 & 15
+ 17: USB OTG in/out endpoints 6 & 14
+ 18: USB OTG in/out endpoints 5 & 13
+ 19: USB OTG in/out endpoints 4 & 12
+ 20: SLIMbus or HSI channel 0
+ 21: SLIMbus or HSI channel 1
+ 22: SLIMbus or HSI channel 2
+ 23: SLIMbus or HSI channel 3
+ 24: Multimedia DSP SXA0
+ 25: Multimedia DSP SXA1
+ 26: Multimedia DSP SXA2
+ 27: Multimedia DSP SXA3
+ 28: SD/MMC controller 2
+ 29: SD/MMC controller 0
+ 30: MSP port 1 on DB8500 v1, MSP port 3 on DB8500 v2
+ 31: MSP port 0 or SLIMbus channel 0
+ 32: SD/MMC controller 1
+ 33: SPI controller 2
+ 34: i2c3 RX2 TX2
+ 35: SPI controller 1
+ 36: USB OTG in/out endpoints 3 & 11
+ 37: USB OTG in/out endpoints 2 & 10
+ 38: USB OTG in/out endpoints 1 & 9
+ 39: USB OTG in/out endpoints 8
+ 40: SPI controller 3
+ 41: SD/MMC controller 3
+ 42: SD/MMC controller 4
+ 43: SD/MMC controller 5
+ 44: Multimedia DSP SXA4
+ 45: Multimedia DSP SXA5
+ 46: SLIMbus channel 8 or Multimedia DSP SXA6
+ 47: SLIMbus channel 9 or Multimedia DSP SXA7
+ 48: Crypto Accelerator 1
+ 49: Crypto Accelerator 1 TX or Hash Accelerator 1 TX
+ 50: Hash Accelerator 1 TX
+ 51: memcpy TX (to be used by the DMA driver for memcpy operations)
+ 52: SLIMbus or HSI channel 4
+ 53: SLIMbus or HSI channel 5
+ 54: SLIMbus or HSI channel 6
+ 55: SLIMbus or HSI channel 7
+ 56: memcpy (to be used by the DMA driver for memcpy operations)
+ 57: memcpy (to be used by the DMA driver for memcpy operations)
+ 58: memcpy (to be used by the DMA driver for memcpy operations)
+ 59: memcpy (to be used by the DMA driver for memcpy operations)
+ 60: memcpy (to be used by the DMA driver for memcpy operations)
+ 61: Crypto Accelerator 0
+ 62: Crypto Accelerator 0 TX or Hash Accelerator 0 TX
+ 63: Hash Accelerator 0 TX
+
+ The second cell is the DMA request line number. This is only used when
+ a fixed channel is allocated, and indicated by setting bit 3 in the
+ flags field (see below).
+
+ The third cell is a 32bit flags bitfield with the following possible
+ bits set:
+ 0x00000001 (bit 0) - mode:
+ Logical channel when unset
+ Physical channel when set
+ 0x00000002 (bit 1) - direction:
+ Memory to Device when unset
+ Device to Memory when set
+ 0x00000004 (bit 2) - endianness:
+ Little endian when unset
+ Big endian when set
+ 0x00000008 (bit 3) - use fixed channel:
+ Use automatic channel selection when unset
+ Use DMA request line number when set
+ 0x00000010 (bit 4) - set channel as high priority:
+ Normal priority when unset
+ High priority when set
+
+ compatible:
+ items:
+ - const: stericsson,db8500-dma40
+ - const: stericsson,dma40
+
+ reg:
+ items:
+ - description: DMA40 memory base
+ - description: LCPA memory base
+
+ reg-names:
+ items:
+ - const: base
+ - const: lcpa
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ memcpy-channels:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: Array of u32 elements indicating which channels on the DMA
+ engine are elegible for memcpy transfers
+
+required:
+ - "#dma-cells"
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - memcpy-channels
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mfd/dbx500-prcmu.h>
+ dma-controller@801C0000 {
+ compatible = "stericsson,db8500-dma40", "stericsson,dma40";
+ reg = <0x801C0000 0x1000>, <0x40010000 0x800>;
+ reg-names = "base", "lcpa";
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ #dma-cells = <3>;
+ memcpy-channels = <56 57 58 59 60>;
+ clocks = <&prcmu_clk PRCMU_DMACLK>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt b/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
index b849a1ed389d..47e477cce6d2 100644
--- a/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
+++ b/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt
@@ -4,7 +4,7 @@ Required properties:
- compatible: "ti,dra7-dma-crossbar" for DRA7xx DMA crossbar
"ti,am335x-edma-crossbar" for AM335x and AM437x
- reg: Memory map for accessing module
-- #dma-cells: Should be set to to match with the DMA controller's dma-cells
+- #dma-cells: Should be set to match with the DMA controller's dma-cells
for ti,dra7-dma-crossbar and <3> for ti,am335x-edma-crossbar.
- dma-requests: Number of DMA requests the crossbar can receive
- dma-masters: phandle pointing to the DMA controller
diff --git a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
index e66ef2da7879..9af40da5688e 100644
--- a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
+++ b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
@@ -20,6 +20,7 @@ properties:
- fsl,imx8qxp-dsp
- fsl,imx8qm-dsp
- fsl,imx8mp-dsp
+ - fsl,imx8ulp-dsp
- fsl,imx8qxp-hifi4
- fsl,imx8qm-hifi4
- fsl,imx8mp-hifi4
diff --git a/Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml b/Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml
new file mode 100644
index 000000000000..3e63f79890b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/dsp/mediatek,mt8186-dsp.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dsp/mediatek,mt8186-dsp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek mt8186 DSP core
+
+maintainers:
+ - Tinghan Shen <tinghan.shen@mediatek.com>
+
+description: |
+ MediaTek mt8186 SoC contains a DSP core used for
+ advanced pre- and post- audio processing.
+
+properties:
+ compatible:
+ const: mediatek,mt8186-dsp
+
+ reg:
+ items:
+ - description: Address and size of the DSP config registers
+ - description: Address and size of the DSP SRAM
+ - description: Address and size of the DSP secure registers
+ - description: Address and size of the DSP bus registers
+
+ reg-names:
+ items:
+ - const: cfg
+ - const: sram
+ - const: sec
+ - const: bus
+
+ clocks:
+ items:
+ - description: mux for audio dsp clock
+ - description: mux for audio dsp local bus
+
+ clock-names:
+ items:
+ - const: audiodsp
+ - const: adsp_bus
+
+ power-domains:
+ maxItems: 1
+
+ mboxes:
+ items:
+ - description: mailbox for receiving audio DSP requests.
+ - description: mailbox for transmitting requests to audio DSP.
+
+ mbox-names:
+ items:
+ - const: rx
+ - const: tx
+
+ memory-region:
+ items:
+ - description: dma buffer between host and DSP.
+ - description: DSP system memory.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - clock-names
+ - power-domains
+ - mbox-names
+ - mboxes
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8186-clk.h>
+ dsp@10680000 {
+ compatible = "mediatek,mt8186-dsp";
+ reg = <0x10680000 0x2000>,
+ <0x10800000 0x100000>,
+ <0x1068b000 0x100>,
+ <0x1068f000 0x1000>;
+ reg-names = "cfg", "sram", "sec", "bus";
+ clocks = <&topckgen CLK_TOP_AUDIODSP>,
+ <&topckgen CLK_TOP_ADSP_BUS>;
+ clock-names = "audiodsp",
+ "adsp_bus";
+ power-domains = <&spm 6>;
+ mbox-names = "rx", "tx";
+ mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>;
+ };
diff --git a/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml b/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml
index b7e68b0dfa13..ca8d8661f872 100644
--- a/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml
+++ b/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml
@@ -50,13 +50,13 @@ properties:
mboxes:
items:
- - description: ipc reply between host and audio DSP.
- - description: ipc request between host and audio DSP.
+ - description: mailbox for receiving audio DSP requests.
+ - description: mailbox for transmitting requests to audio DSP.
mbox-names:
items:
- - const: mbox0
- - const: mbox1
+ - const: rx
+ - const: tx
memory-region:
items:
@@ -100,6 +100,6 @@ examples:
memory-region = <&adsp_dma_mem_reserved>,
<&adsp_mem_reserved>;
power-domains = <&spm 6>; //MT8195_POWER_DOMAIN_ADSP
- mbox-names = "mbox0", "mbox1";
+ mbox-names = "rx", "tx";
mboxes = <&adsp_mailbox0>, <&adsp_mailbox1>;
};
diff --git a/Documentation/devicetree/bindings/eeprom/at25.yaml b/Documentation/devicetree/bindings/eeprom/at25.yaml
index fbf99e346966..8b1c997caac1 100644
--- a/Documentation/devicetree/bindings/eeprom/at25.yaml
+++ b/Documentation/devicetree/bindings/eeprom/at25.yaml
@@ -44,8 +44,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
pagesize:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072]
@@ -105,6 +103,7 @@ required:
- spi-max-frequency
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -117,7 +116,7 @@ allOf:
- size
- address-width
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.yaml b/Documentation/devicetree/bindings/eeprom/microchip,93lc46b.yaml
index 44fd2f6f0d8a..0c2f5ddb79c5 100644
--- a/Documentation/devicetree/bindings/misc/eeprom-93xx46.yaml
+++ b/Documentation/devicetree/bindings/eeprom/microchip,93lc46b.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/misc/eeprom-93xx46.yaml#
+$id: http://devicetree.org/schemas/eeprom/microchip,93lc46b.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip 93xx46 SPI compatible EEPROM family dt bindings
@@ -28,9 +28,6 @@ properties:
description: chip select of EEPROM
maxItems: 1
- spi-max-frequency: true
- spi-cs-high: true
-
read-only:
description:
parameter-less property which disables writes to the EEPROM
@@ -42,14 +39,16 @@ properties:
of EEPROM (e.g. for SPI bus multiplexing)
maxItems: 1
-
required:
- compatible
- reg
- data-size
- spi-max-frequency
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 948e2a38beed..1c0388da6721 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -183,6 +183,12 @@ properties:
required:
- reg
+ protocol@18:
+ type: object
+ properties:
+ reg:
+ const: 0x18
+
additionalProperties: false
patternProperties:
@@ -323,6 +329,10 @@ examples:
};
};
};
+
+ scmi_powercap: protocol@18 {
+ reg = <0x18>;
+ };
};
};
diff --git a/Documentation/devicetree/bindings/firmware/fsl,scu.yaml b/Documentation/devicetree/bindings/firmware/fsl,scu.yaml
new file mode 100644
index 000000000000..557e524786c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/fsl,scu.yaml
@@ -0,0 +1,215 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/fsl,scu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX System Controller Firmware (SCFW)
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description:
+ The System Controller Firmware (SCFW) is a low-level system function
+ which runs on a dedicated Cortex-M core to provide power, clock, and
+ resource management. It exists on some i.MX8 processors. e.g. i.MX8QM
+ (QM, QP), and i.MX8QX (QXP, DX).
+ The AP communicates with the SC using a multi-ported MU module found
+ in the LSIO subsystem. The current definition of this MU module provides
+ 5 remote AP connections to the SC to support up to 5 execution environments
+ (TZ, HV, standard Linux, etc.). The SC side of this MU module interfaces
+ with the LSIO DSC IP bus. The SC firmware will communicate with this MU
+ using the MSI bus.
+
+properties:
+ compatible:
+ const: fsl,imx-scu
+
+ clock-controller:
+ description:
+ Clock controller node that provides the clocks controlled by the SCU
+ $ref: /schemas/clock/fsl,scu-clk.yaml
+
+ gpio:
+ description:
+ Control the GPIO PINs on SCU domain over the firmware APIs
+ $ref: /schemas/gpio/fsl,imx8qxp-sc-gpio.yaml
+
+ ocotp:
+ description:
+ OCOTP controller node provided by the SCU
+ $ref: /schemas/nvmem/fsl,scu-ocotp.yaml
+
+ keys:
+ description:
+ Keys provided by the SCU
+ $ref: /schemas/input/fsl,scu-key.yaml
+
+ mboxes:
+ description:
+ A list of phandles of TX MU channels followed by a list of phandles of
+ RX MU channels. The list may include at the end one more optional MU
+ channel for general interrupt. The number of expected tx and rx
+ channels is 1 TX and 1 RX channels if MU instance is "fsl,imx8-mu-scu"
+ compatible, 4 TX and 4 RX channels otherwise. All MU channels must be
+ within the same MU instance. Cross instances are not allowed. The MU
+ instance can only be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users
+ need to ensure that one is used that does not conflict with other
+ execution environments such as ATF.
+ oneOf:
+ - items:
+ - description: TX0 MU channel
+ - description: RX0 MU channel
+ - items:
+ - description: TX0 MU channel
+ - description: RX0 MU channel
+ - description: optional MU channel for general interrupt
+ - items:
+ - description: TX0 MU channel
+ - description: TX1 MU channel
+ - description: TX2 MU channel
+ - description: TX3 MU channel
+ - description: RX0 MU channel
+ - description: RX1 MU channel
+ - description: RX2 MU channel
+ - description: RX3 MU channel
+ - items:
+ - description: TX0 MU channel
+ - description: TX1 MU channel
+ - description: TX2 MU channel
+ - description: TX3 MU channel
+ - description: RX0 MU channel
+ - description: RX1 MU channel
+ - description: RX2 MU channel
+ - description: RX3 MU channel
+ - description: optional MU channel for general interrupt
+
+ mbox-names:
+ oneOf:
+ - items:
+ - const: tx0
+ - const: rx0
+ - items:
+ - const: tx0
+ - const: rx0
+ - const: gip3
+ - items:
+ - const: tx0
+ - const: tx1
+ - const: tx2
+ - const: tx3
+ - const: rx0
+ - const: rx1
+ - const: rx2
+ - const: rx3
+ - items:
+ - const: tx0
+ - const: tx1
+ - const: tx2
+ - const: tx3
+ - const: rx0
+ - const: rx1
+ - const: rx2
+ - const: rx3
+ - const: gip3
+
+ pinctrl:
+ description:
+ Pin controller provided by the SCU
+ $ref: /schemas/pinctrl/fsl,scu-pinctrl.yaml
+
+ power-controller:
+ description:
+ Power domains controller node that provides the power domains
+ controlled by the SCU
+ $ref: /schemas/power/fsl,scu-pd.yaml
+
+ rtc:
+ description:
+ RTC controller provided by the SCU
+ $ref: /schemas/rtc/fsl,scu-rtc.yaml
+
+ thermal-sensor:
+ description:
+ Thermal sensor provided by the SCU
+ $ref: /schemas/thermal/fsl,scu-thermal.yaml
+
+ watchdog:
+ description:
+ Watchdog controller provided by the SCU
+ $ref: /schemas/watchdog/fsl,scu-wdt.yaml
+
+required:
+ - compatible
+ - mbox-names
+ - mboxes
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ #include <dt-bindings/input/input.h>
+ #include <dt-bindings/pinctrl/pads-imx8qxp.h>
+
+ firmware {
+ system-controller {
+ compatible = "fsl,imx-scu";
+ mbox-names = "tx0", "tx1", "tx2", "tx3",
+ "rx0", "rx1", "rx2", "rx3",
+ "gip3";
+ mboxes = <&lsio_mu1 0 0 &lsio_mu1 0 1 &lsio_mu1 0 2 &lsio_mu1 0 3
+ &lsio_mu1 1 0 &lsio_mu1 1 1 &lsio_mu1 1 2 &lsio_mu1 1 3
+ &lsio_mu1 3 3>;
+
+ clock-controller {
+ compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
+ #clock-cells = <2>;
+ };
+
+ pinctrl {
+ compatible = "fsl,imx8qxp-iomuxc";
+
+ pinctrl_lpuart0: lpuart0grp {
+ fsl,pins = <
+ IMX8QXP_UART0_RX_ADMA_UART0_RX 0x06000020
+ IMX8QXP_UART0_TX_ADMA_UART0_TX 0x06000020
+ >;
+ };
+ };
+
+ ocotp {
+ compatible = "fsl,imx8qxp-scu-ocotp";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ fec_mac0: mac@2c4 {
+ reg = <0x2c4 6>;
+ };
+ };
+
+ power-controller {
+ compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
+ #power-domain-cells = <1>;
+ };
+
+ rtc {
+ compatible = "fsl,imx8qxp-sc-rtc";
+ };
+
+ keys {
+ compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
+ linux,keycodes = <KEY_POWER>;
+ };
+
+ watchdog {
+ compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
+ timeout-sec = <60>;
+ };
+
+ thermal-sensor {
+ compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
+ #thermal-sensor-cells = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
deleted file mode 100644
index 0f4e5ab26477..000000000000
--- a/Documentation/devicetree/bindings/firmware/qcom,scm.txt
+++ /dev/null
@@ -1,57 +0,0 @@
-QCOM Secure Channel Manager (SCM)
-
-Qualcomm processors include an interface to communicate to the secure firmware.
-This interface allows for clients to request different types of actions. These
-can include CPU power up/down, HDCP requests, loading of firmware, and other
-assorted actions.
-
-Required properties:
-- compatible: must contain one of the following:
- * "qcom,scm-apq8064"
- * "qcom,scm-apq8084"
- * "qcom,scm-ipq4019"
- * "qcom,scm-ipq806x"
- * "qcom,scm-ipq8074"
- * "qcom,scm-mdm9607"
- * "qcom,scm-msm8226"
- * "qcom,scm-msm8660"
- * "qcom,scm-msm8916"
- * "qcom,scm-msm8953"
- * "qcom,scm-msm8960"
- * "qcom,scm-msm8974"
- * "qcom,scm-msm8976"
- * "qcom,scm-msm8994"
- * "qcom,scm-msm8996"
- * "qcom,scm-msm8998"
- * "qcom,scm-sc7180"
- * "qcom,scm-sc7280"
- * "qcom,scm-sdm845"
- * "qcom,scm-sdx55"
- * "qcom,scm-sm6350"
- * "qcom,scm-sm8150"
- * "qcom,scm-sm8250"
- * "qcom,scm-sm8350"
- * "qcom,scm-sm8450"
- and:
- * "qcom,scm"
-- clocks: Specifies clocks needed by the SCM interface, if any:
- * core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660" and
- "qcom,scm-msm8960"
- * core, iface and bus clocks required for "qcom,scm-apq8084",
- "qcom,scm-msm8916", "qcom,scm-msm8953", "qcom,scm-msm8974" and "qcom,scm-msm8976"
-- clock-names: Must contain "core" for the core clock, "iface" for the interface
- clock and "bus" for the bus clock per the requirements of the compatible.
-- qcom,dload-mode: phandle to the TCSR hardware block and offset of the
- download mode control register (optional)
-
-Example for MSM8916:
-
- firmware {
- scm {
- compatible = "qcom,msm8916", "qcom,scm";
- clocks = <&gcc GCC_CRYPTO_CLK> ,
- <&gcc GCC_CRYPTO_AXI_CLK>,
- <&gcc GCC_CRYPTO_AHB_CLK>;
- clock-names = "core", "bus", "iface";
- };
- };
diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
new file mode 100644
index 000000000000..c5b76c9f7ad0
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/firmware/qcom,scm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: QCOM Secure Channel Manager (SCM)
+
+description: |
+ Qualcomm processors include an interface to communicate to the secure firmware.
+ This interface allows for clients to request different types of actions.
+ These can include CPU power up/down, HDCP requests, loading of firmware,
+ and other assorted actions.
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+ - Robert Marko <robimarko@gmail.com>
+ - Guru Das Srinagesh <quic_gurus@quicinc.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,scm-apq8064
+ - qcom,scm-apq8084
+ - qcom,scm-ipq4019
+ - qcom,scm-ipq6018
+ - qcom,scm-ipq806x
+ - qcom,scm-ipq8074
+ - qcom,scm-mdm9607
+ - qcom,scm-msm8226
+ - qcom,scm-msm8660
+ - qcom,scm-msm8916
+ - qcom,scm-msm8953
+ - qcom,scm-msm8960
+ - qcom,scm-msm8974
+ - qcom,scm-msm8976
+ - qcom,scm-msm8994
+ - qcom,scm-msm8996
+ - qcom,scm-msm8998
+ - qcom,scm-sc7180
+ - qcom,scm-sc7280
+ - qcom,scm-sc8280xp
+ - qcom,scm-sdm845
+ - qcom,scm-sdx55
+ - qcom,scm-sdx65
+ - qcom,scm-sm6115
+ - qcom,scm-sm6125
+ - qcom,scm-sm6350
+ - qcom,scm-sm8150
+ - qcom,scm-sm8250
+ - qcom,scm-sm8350
+ - qcom,scm-sm8450
+ - qcom,scm-qcs404
+ - const: qcom,scm
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+
+ interconnects:
+ maxItems: 1
+
+ interconnect-names:
+ maxItems: 1
+
+ '#reset-cells':
+ const: 1
+
+ qcom,dload-mode:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - items:
+ - description: phandle to TCSR hardware block
+ - description: offset of the download mode control register
+ description: TCSR hardware block
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,scm-apq8064
+ - qcom,scm-msm8660
+ - qcom,scm-msm8960
+ then:
+ properties:
+ clock-names:
+ items:
+ - const: core
+
+ clocks:
+ maxItems: 1
+
+ required:
+ - clocks
+ - clock-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,scm-apq8084
+ - qcom,scm-mdm9607
+ - qcom,scm-msm8916
+ - qcom,scm-msm8953
+ - qcom,scm-msm8974
+ - qcom,scm-msm8976
+ then:
+ properties:
+ clock-names:
+ items:
+ - const: core
+ - const: bus
+ - const: iface
+
+ clocks:
+ minItems: 3
+ maxItems: 3
+
+ required:
+ - clocks
+ - clock-names
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8916.h>
+
+ firmware {
+ scm {
+ compatible = "qcom,scm-msm8916", "qcom,scm";
+ clocks = <&gcc GCC_CRYPTO_CLK>,
+ <&gcc GCC_CRYPTO_AXI_CLK>,
+ <&gcc GCC_CRYPTO_AHB_CLK>;
+ clock-names = "core", "bus", "iface";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt
index 7d3515264838..6694ef29a267 100644
--- a/Documentation/devicetree/bindings/fpga/fpga-region.txt
+++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt
@@ -330,7 +330,7 @@ succeeded.
The Device Tree Overlay will contain:
* "target-path" or "target"
- The insertion point where the the contents of the overlay will go into the
+ The insertion point where the contents of the overlay will go into the
live tree. target-path is a full path, while target is a phandle.
* "ranges"
The address space mapping from processor to FPGA bus(ses).
diff --git a/Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml b/Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml
new file mode 100644
index 000000000000..527532f039ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/fpga/microchip,mpf-spi-fpga-mgr.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fpga/microchip,mpf-spi-fpga-mgr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip Polarfire FPGA manager.
+
+maintainers:
+ - Ivan Bornyakov <i.bornyakov@metrotek.ru>
+
+description:
+ Device Tree Bindings for Microchip Polarfire FPGA Manager using slave SPI to
+ load the bitstream in .dat format.
+
+properties:
+ compatible:
+ enum:
+ - microchip,mpf-spi-fpga-mgr
+
+ reg:
+ description: SPI chip select
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fpga_mgr@0 {
+ compatible = "microchip,mpf-spi-fpga-mgr";
+ spi-max-frequency = <20000000>;
+ reg = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-zynq-fpga-mgr.yaml b/Documentation/devicetree/bindings/fpga/xilinx-zynq-fpga-mgr.yaml
index 29daca4be47f..f47b6140a742 100644
--- a/Documentation/devicetree/bindings/fpga/xilinx-zynq-fpga-mgr.yaml
+++ b/Documentation/devicetree/bindings/fpga/xilinx-zynq-fpga-mgr.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/fpga/xilinx-zynq-fpga-mgr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx Zynq FPGA Manager Device Tree Bindings
+title: Xilinx Zynq FPGA Manager
maintainers:
- Michal Simek <michal.simek@xilinx.com>
diff --git a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.yaml b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.yaml
index 6cd2bdc06b5f..00a8d92ff736 100644
--- a/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.yaml
+++ b/Documentation/devicetree/bindings/fpga/xlnx,zynqmp-pcap-fpga.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/fpga/xlnx,zynqmp-pcap-fpga.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx Zynq Ultrascale MPSoC FPGA Manager Device Tree Bindings
+title: Xilinx Zynq Ultrascale MPSoC FPGA Manager
maintainers:
- Nava kishore Manne <navam@xilinx.com>
diff --git a/Documentation/devicetree/bindings/gnss/brcm,bcm4751.yaml b/Documentation/devicetree/bindings/gnss/brcm,bcm4751.yaml
index e62b30386ac2..c21549e0fba6 100644
--- a/Documentation/devicetree/bindings/gnss/brcm,bcm4751.yaml
+++ b/Documentation/devicetree/bindings/gnss/brcm,bcm4751.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/gnss/brcm,bcm4751.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM4751 family GNSS Receiver Device Tree Bindings
+title: Broadcom BCM4751 family GNSS Receiver
maintainers:
- Johan Hovold <johan@kernel.org>
diff --git a/Documentation/devicetree/bindings/gnss/mediatek.yaml b/Documentation/devicetree/bindings/gnss/mediatek.yaml
index 45cf01b27700..c0eb35beb2ef 100644
--- a/Documentation/devicetree/bindings/gnss/mediatek.yaml
+++ b/Documentation/devicetree/bindings/gnss/mediatek.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/gnss/mediatek.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek GNSS Receiver Device Tree Bindings
+title: Mediatek GNSS Receiver
maintainers:
- Johan Hovold <johan@kernel.org>
diff --git a/Documentation/devicetree/bindings/gnss/sirfstar.yaml b/Documentation/devicetree/bindings/gnss/sirfstar.yaml
index 991599cdaa6b..0bbe684d82e1 100644
--- a/Documentation/devicetree/bindings/gnss/sirfstar.yaml
+++ b/Documentation/devicetree/bindings/gnss/sirfstar.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/gnss/sirfstar.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: SiRFstar GNSS Receiver Device Tree Bindings
+title: SiRFstar GNSS Receiver
maintainers:
- Johan Hovold <johan@kernel.org>
diff --git a/Documentation/devicetree/bindings/gnss/u-blox,neo-6m.yaml b/Documentation/devicetree/bindings/gnss/u-blox,neo-6m.yaml
index 35a760cfd343..4835a280b3bf 100644
--- a/Documentation/devicetree/bindings/gnss/u-blox,neo-6m.yaml
+++ b/Documentation/devicetree/bindings/gnss/u-blox,neo-6m.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/gnss/u-blox,neo-6m.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: U-blox GNSS Receiver Device Tree Bindings
+title: U-blox GNSS Receiver
allOf:
- $ref: gnss-common.yaml#
diff --git a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
index a99e7842ca17..c0ad70e66f76 100644
--- a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
+++ b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
@@ -33,8 +33,6 @@ properties:
description: GPIO connected to the OE (Output Enable) pin.
maxItems: 1
- spi-max-frequency: true
-
patternProperties:
"^(hog-[0-9]+|.+-hog(-[0-9]+)?)$":
type: object
@@ -59,7 +57,10 @@ required:
- '#gpio-cells'
- registers-number
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/gpio/fsl,imx8qxp-sc-gpio.yaml b/Documentation/devicetree/bindings/gpio/fsl,imx8qxp-sc-gpio.yaml
new file mode 100644
index 000000000000..b7b32220935d
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/fsl,imx8qxp-sc-gpio.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/fsl,imx8qxp-sc-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO driver over IMX SCU firmware API
+
+maintainers:
+ - Shenwei Wang <shenwei.wang@nxp.com>
+
+description: |
+ This module provides the standard interface to control the
+ resource pins in SCU domain on i.MX8 platforms.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qxp-sc-gpio
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-controller: true
+
+required:
+ - compatible
+ - "#gpio-cells"
+ - gpio-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ gpio0: gpio {
+ compatible = "fsl,imx8qxp-sc-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
index f57d22d1ebd6..ae18603697d7 100644
--- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml
@@ -37,6 +37,8 @@ properties:
- fsl,imx8mp-gpio
- fsl,imx8mq-gpio
- fsl,imx8qxp-gpio
+ - fsl,imxrt1050-gpio
+ - fsl,imxrt1170-gpio
- const: fsl,imx35-gpio
reg:
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt b/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
deleted file mode 100644
index 0fc6700ed800..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-mvebu.txt
+++ /dev/null
@@ -1,93 +0,0 @@
-* Marvell EBU GPIO controller
-
-Required properties:
-
-- compatible : Should be "marvell,orion-gpio", "marvell,mv78200-gpio",
- "marvell,armadaxp-gpio" or "marvell,armada-8k-gpio".
-
- "marvell,orion-gpio" should be used for Orion, Kirkwood, Dove,
- Discovery (except MV78200) and Armada 370. "marvell,mv78200-gpio"
- should be used for the Discovery MV78200.
-
- "marvel,armadaxp-gpio" should be used for all Armada XP SoCs
- (MV78230, MV78260, MV78460).
-
- "marvell,armada-8k-gpio" should be used for the Armada 7K and 8K
- SoCs (either from AP or CP), see
- Documentation/devicetree/bindings/arm/marvell/ap80x-system-controller.txt
- for specific details about the offset property.
-
-- reg: Address and length of the register set for the device. Only one
- entry is expected, except for the "marvell,armadaxp-gpio" variant
- for which two entries are expected: one for the general registers,
- one for the per-cpu registers. Not used for marvell,armada-8k-gpio.
-
-- interrupts: The list of interrupts that are used for all the pins
- managed by this GPIO bank. There can be more than one interrupt
- (example: 1 interrupt per 8 pins on Armada XP, which means 4
- interrupts per bank of 32 GPIOs).
-
-- interrupt-controller: identifies the node as an interrupt controller
-
-- #interrupt-cells: specifies the number of cells needed to encode an
- interrupt source. Should be two.
- The first cell is the GPIO number.
- The second cell is used to specify flags:
- bits[3:0] trigger type and level flags:
- 1 = low-to-high edge triggered.
- 2 = high-to-low edge triggered.
- 4 = active high level-sensitive.
- 8 = active low level-sensitive.
-
-- gpio-controller: marks the device node as a gpio controller
-
-- ngpios: number of GPIOs this controller has
-
-- #gpio-cells: Should be two. The first cell is the pin number. The
- second cell is reserved for flags, unused at the moment.
-
-Optional properties:
-
-In order to use the GPIO lines in PWM mode, some additional optional
-properties are required.
-
-- compatible: Must contain "marvell,armada-370-gpio"
-
-- reg: an additional register set is needed, for the GPIO Blink
- Counter on/off registers.
-
-- reg-names: Must contain an entry "pwm" corresponding to the
- additional register range needed for PWM operation.
-
-- #pwm-cells: Should be two. The first cell is the GPIO line number. The
- second cell is the period in nanoseconds.
-
-- clocks: Must be a phandle to the clock for the GPIO controller.
-
-Example:
-
- gpio0: gpio@d0018100 {
- compatible = "marvell,armadaxp-gpio";
- reg = <0xd0018100 0x40>,
- <0xd0018800 0x30>;
- ngpios = <32>;
- gpio-controller;
- #gpio-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupts = <16>, <17>, <18>, <19>;
- };
-
- gpio1: gpio@18140 {
- compatible = "marvell,armada-370-gpio";
- reg = <0x18140 0x40>, <0x181c8 0x08>;
- reg-names = "gpio", "pwm";
- ngpios = <17>;
- gpio-controller;
- #gpio-cells = <2>;
- #pwm-cells = <2>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupts = <87>, <88>, <89>;
- clocks = <&coreclk 0>;
- };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml b/Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml
new file mode 100644
index 000000000000..f1bd1e6b2e1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-mvebu.yaml
@@ -0,0 +1,146 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-mvebu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell EBU GPIO controller
+
+maintainers:
+ - Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ - Andrew Lunn <andrew@lunn.ch>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - marvell,armada-8k-gpio
+ - marvell,orion-gpio
+
+ - items:
+ - enum:
+ - marvell,mv78200-gpio
+ - marvell,armada-370-gpio
+ - const: marvell,orion-gpio
+
+ - description: Deprecated binding
+ items:
+ - const: marvell,armadaxp-gpio
+ - const: marvell,orion-gpio
+ deprecated: true
+
+ reg:
+ description: |
+ Address and length of the register set for the device. Not used for
+ marvell,armada-8k-gpio.
+
+ A second entry can be provided, for the PWM function using the GPIO Blink
+ Counter on/off registers.
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: gpio
+ - const: pwm
+ minItems: 1
+
+ offset:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Offset in the register map for the gpio registers (in bytes)
+
+ interrupts:
+ description: |
+ The list of interrupts that are used for all the pins managed by this
+ GPIO bank. There can be more than one interrupt (example: 1 interrupt
+ per 8 pins on Armada XP, which means 4 interrupts per bank of 32
+ GPIOs).
+ minItems: 1
+ maxItems: 4
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ gpio-controller: true
+
+ ngpios:
+ minimum: 1
+ maximum: 32
+
+ "#gpio-cells":
+ const: 2
+
+ marvell,pwm-offset:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Offset in the register map for the pwm registers (in bytes)
+
+ "#pwm-cells":
+ description:
+ The first cell is the GPIO line number. The second cell is the period
+ in nanoseconds.
+ const: 2
+
+ clocks:
+ description:
+ Clock(s) used for PWM function.
+ items:
+ - description: Core clock
+ - description: AXI bus clock
+ minItems: 1
+
+ clock-names:
+ items:
+ - const: core
+ - const: axi
+ minItems: 1
+
+required:
+ - compatible
+ - gpio-controller
+ - ngpios
+ - "#gpio-cells"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: marvell,armada-8k-gpio
+ then:
+ required:
+ - offset
+ else:
+ required:
+ - reg
+
+unevaluatedProperties: true
+
+examples:
+ - |
+ gpio@d0018100 {
+ compatible = "marvell,armadaxp-gpio", "marvell,orion-gpio";
+ reg = <0xd0018100 0x40>, <0xd0018800 0x30>;
+ ngpios = <32>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <16>, <17>, <18>, <19>;
+ };
+
+ - |
+ gpio@18140 {
+ compatible = "marvell,armada-370-gpio", "marvell,orion-gpio";
+ reg = <0x18140 0x40>, <0x181c8 0x08>;
+ reg-names = "gpio", "pwm";
+ ngpios = <17>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ #pwm-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <87>, <88>, <89>;
+ clocks = <&coreclk 0>;
+ };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
index 338c5312a106..1acaa0a3d35a 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca9570.yaml
@@ -13,6 +13,7 @@ properties:
compatible:
enum:
- nxp,pca9570
+ - nxp,pca9571
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
index 977b14db09b0..1b70e9f308f3 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
@@ -15,52 +15,59 @@ description: |+
properties:
compatible:
- enum:
- - exar,xra1202
- - maxim,max7310
- - maxim,max7312
- - maxim,max7313
- - maxim,max7315
- - maxim,max7319
- - maxim,max7320
- - maxim,max7321
- - maxim,max7322
- - maxim,max7323
- - maxim,max7324
- - maxim,max7325
- - maxim,max7326
- - maxim,max7327
- - nxp,pca6408
- - nxp,pca6416
- - nxp,pca9505
- - nxp,pca9506
- - nxp,pca9534
- - nxp,pca9535
- - nxp,pca9536
- - nxp,pca9537
- - nxp,pca9538
- - nxp,pca9539
- - nxp,pca9554
- - nxp,pca9555
- - nxp,pca9556
- - nxp,pca9557
- - nxp,pca9574
- - nxp,pca9575
- - nxp,pca9698
- - nxp,pcal6416
- - nxp,pcal6524
- - nxp,pcal9535
- - nxp,pcal9554b
- - nxp,pcal9555a
- - onnn,cat9554
- - onnn,pca9654
- - ti,pca6107
- - ti,pca9536
- - ti,tca6408
- - ti,tca6416
- - ti,tca6424
- - ti,tca9539
- - ti,tca9554
+ oneOf:
+ - items:
+ - const: diodes,pi4ioe5v6534q
+ - const: nxp,pcal6534
+ - items:
+ - enum:
+ - exar,xra1202
+ - maxim,max7310
+ - maxim,max7312
+ - maxim,max7313
+ - maxim,max7315
+ - maxim,max7319
+ - maxim,max7320
+ - maxim,max7321
+ - maxim,max7322
+ - maxim,max7323
+ - maxim,max7324
+ - maxim,max7325
+ - maxim,max7326
+ - maxim,max7327
+ - nxp,pca6408
+ - nxp,pca6416
+ - nxp,pca9505
+ - nxp,pca9506
+ - nxp,pca9534
+ - nxp,pca9535
+ - nxp,pca9536
+ - nxp,pca9537
+ - nxp,pca9538
+ - nxp,pca9539
+ - nxp,pca9554
+ - nxp,pca9555
+ - nxp,pca9556
+ - nxp,pca9557
+ - nxp,pca9574
+ - nxp,pca9575
+ - nxp,pca9698
+ - nxp,pcal6408
+ - nxp,pcal6416
+ - nxp,pcal6524
+ - nxp,pcal6534
+ - nxp,pcal9535
+ - nxp,pcal9554b
+ - nxp,pcal9555a
+ - onnn,cat9554
+ - onnn,pca9654
+ - ti,pca6107
+ - ti,pca9536
+ - ti,tca6408
+ - ti,tca6416
+ - ti,tca6424
+ - ti,tca9539
+ - ti,tca9554
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt b/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt
index 414a01cdf715..fba3c61f6a5b 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-pisosr.txt
@@ -14,7 +14,7 @@ Optional properties:
- ngpios : Number of used GPIO lines (0..n-1), default is 8.
- load-gpios : GPIO pin specifier attached to load enable, this
pin is pulsed before reading from the device to
- load input pin values into the the device.
+ load input pin values into the device.
For other required and optional properties of SPI slave
nodes please refer to ../spi/spi-bus.txt.
diff --git a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt b/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
index a0e4cf885213..b33f8f02c0d7 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-stmpe.txt
@@ -8,8 +8,7 @@ Optional properties:
- st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable
due to different usage (e.g. touch, keypad)
-Node name must be stmpe_gpio and should be child node of stmpe node to which it
-belongs.
+Node should be child node of stmpe node to which it belongs.
Example:
stmpe_gpio {
diff --git a/Documentation/devicetree/bindings/gpio/gpio-tpic2810.txt b/Documentation/devicetree/bindings/gpio/gpio-tpic2810.txt
deleted file mode 100644
index 1afc2de7a537..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-tpic2810.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-TPIC2810 GPIO controller bindings
-
-Required properties:
- - compatible : Should be "ti,tpic2810".
- - reg : The I2C address of the device
- - gpio-controller : Marks the device node as a GPIO controller.
- - #gpio-cells : Should be two. For consumer use see gpio.txt.
-
-Example:
-
- gpio@60 {
- compatible = "ti,tpic2810";
- reg = <0x60>;
- gpio-controller;
- #gpio-cells = <2>;
- };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-tpic2810.yaml b/Documentation/devicetree/bindings/gpio/gpio-tpic2810.yaml
new file mode 100644
index 000000000000..cb8a5c376e1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-tpic2810.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-tpic2810.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TPIC2810 GPIO controller bindings
+
+maintainers:
+ - Aswath Govindraju <a-govindraju@ti.com>
+
+properties:
+ compatible:
+ enum:
+ - ti,tpic2810
+
+ reg:
+ maxItems: 1
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-line-names:
+ minItems: 1
+ maxItems: 32
+
+required:
+ - compatible
+ - reg
+ - gpio-controller
+ - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ gpio@60 {
+ compatible = "ti,tpic2810";
+ reg = <0x60>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "LED A", "LED B", "LED C";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-xilinx.txt b/Documentation/devicetree/bindings/gpio/gpio-xilinx.txt
deleted file mode 100644
index e506f30e1a95..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-xilinx.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-Xilinx plb/axi GPIO controller
-
-Dual channel GPIO controller with configurable number of pins
-(from 1 to 32 per channel). Every pin can be configured as
-input/output/tristate. Both channels share the same global IRQ but
-local interrupts can be enabled on channel basis.
-
-Required properties:
-- compatible : Should be "xlnx,xps-gpio-1.00.a"
-- reg : Address and length of the register set for the device
-- #gpio-cells : Should be two. The first cell is the pin number and the
- second cell is used to specify optional parameters (currently unused).
-- gpio-controller : Marks the device node as a GPIO controller.
-
-Optional properties:
-- clocks : Input clock specifier. Refer to common clock bindings.
-- interrupts : Interrupt mapping for GPIO IRQ.
-- xlnx,all-inputs : if n-th bit is setup, GPIO-n is input
-- xlnx,dout-default : if n-th bit is 1, GPIO-n default value is 1
-- xlnx,gpio-width : gpio width
-- xlnx,tri-default : if n-th bit is 1, GPIO-n is in tristate mode
-- xlnx,is-dual : if 1, controller also uses the second channel
-- xlnx,all-inputs-2 : as above but for the second channel
-- xlnx,dout-default-2 : as above but the second channel
-- xlnx,gpio2-width : as above but for the second channel
-- xlnx,tri-default-2 : as above but for the second channel
-
-
-Example:
-gpio: gpio@40000000 {
- #gpio-cells = <2>;
- compatible = "xlnx,xps-gpio-1.00.a";
- clocks = <&clkc25>;
- gpio-controller ;
- interrupt-parent = <&microblaze_0_intc>;
- interrupts = < 6 2 >;
- reg = < 0x40000000 0x10000 >;
- xlnx,all-inputs = <0x0>;
- xlnx,all-inputs-2 = <0x0>;
- xlnx,dout-default = <0x0>;
- xlnx,dout-default-2 = <0x0>;
- xlnx,gpio-width = <0x2>;
- xlnx,gpio2-width = <0x2>;
- xlnx,interrupt-present = <0x1>;
- xlnx,is-dual = <0x1>;
- xlnx,tri-default = <0xffffffff>;
- xlnx,tri-default-2 = <0xffffffff>;
-} ;
diff --git a/Documentation/devicetree/bindings/gpio/gpio-zynq.yaml b/Documentation/devicetree/bindings/gpio/gpio-zynq.yaml
index 378da2649e66..572e1718f501 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-zynq.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.yaml
@@ -4,14 +4,18 @@
$id: http://devicetree.org/schemas/gpio/gpio-zynq.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx Zynq GPIO controller Device Tree Bindings
+title: Xilinx Zynq GPIO controller
maintainers:
- Michal Simek <michal.simek@xilinx.com>
properties:
compatible:
- const: xlnx,zynq-gpio-1.0
+ enum:
+ - xlnx,zynq-gpio-1.0
+ - xlnx,zynqmp-gpio-1.0
+ - xlnx,versal-gpio-1.0
+ - xlnx,pmc-gpio-1.0
reg:
maxItems: 1
@@ -24,6 +28,11 @@ properties:
gpio-controller: true
+ gpio-line-names:
+ description: strings describing the names of each gpio line
+ minItems: 58
+ maxItems: 174
+
interrupt-controller: true
"#interrupt-cells":
@@ -32,6 +41,54 @@ properties:
clocks:
maxItems: 1
+ power-domains:
+ maxItems: 1
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - xlnx,zynqmp-gpio-1.0
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 174
+ maxItems: 174
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - xlnx,zynq-gpio-1.0
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 118
+ maxItems: 118
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - xlnx,versal-gpio-1.0
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 58
+ maxItems: 58
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - xlnx,pmc-gpio-1.0
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 116
+ maxItems: 116
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
index 110651eafa70..d481e78958a7 100644
--- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/gpio/microchip,mpfs-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip MPFS GPIO Controller Device Tree Bindings
+title: Microchip MPFS GPIO Controller
maintainers:
- Conor Dooley <conor.dooley@microchip.com>
@@ -44,6 +44,24 @@ properties:
gpio-controller: true
+patternProperties:
+ "^.+-hog(-[0-9]+)?$":
+ type: object
+
+ additionalProperties: false
+
+ properties:
+ gpio-hog: true
+ gpios: true
+ input: true
+ output-high: true
+ output-low: true
+ line-name: true
+
+ required:
+ - gpio-hog
+ - gpios
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
index 0681a4790cd6..aa424e2b95f8 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
@@ -49,11 +49,10 @@ properties:
- const: renesas,rcar-gen3-gpio # R-Car Gen3 or RZ/G2
- items:
- - const: renesas,gpio-r8a779a0 # R-Car V3U
-
- - items:
- enum:
+ - renesas,gpio-r8a779a0 # R-Car V3U
- renesas,gpio-r8a779f0 # R-Car S4-8
+ - renesas,gpio-r8a779g0 # R-Car V4H
- const: renesas,rcar-gen4-gpio # R-Car Gen4
reg:
diff --git a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
index d4e42c2b995b..affd823c881d 100644
--- a/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
+++ b/Documentation/devicetree/bindings/gpio/rockchip,gpio-bank.yaml
@@ -27,6 +27,8 @@ properties:
- description: APB interface clock source
- description: GPIO debounce reference clock source
+ gpio-ranges: true
+
gpio-controller: true
gpio-line-names: true
diff --git a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
index 939e31c48081..fc095646adea 100644
--- a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
@@ -46,6 +46,10 @@ properties:
maximum: 32
default: 16
+ gpio-line-names:
+ minItems: 1
+ maxItems: 32
+
gpio-controller: true
required:
diff --git a/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml b/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml
index 0f628b088cec..7f26f6b1eea1 100644
--- a/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/gpio/x-powers,axp209-gpio.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: X-Powers AXP209 GPIO Device Tree Bindings
+title: X-Powers AXP209 GPIO
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -19,8 +19,14 @@ properties:
oneOf:
- enum:
- x-powers,axp209-gpio
+ - x-powers,axp221-gpio
- x-powers,axp813-gpio
- items:
+ - enum:
+ - x-powers,axp223-gpio
+ - x-powers,axp809-gpio
+ - const: x-powers,axp221-gpio
+ - items:
- const: x-powers,axp803-gpio
- const: x-powers,axp813-gpio
diff --git a/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml b/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml
new file mode 100644
index 000000000000..f333ee2288e7
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml
@@ -0,0 +1,154 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/xlnx,gpio-xilinx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx AXI GPIO controller
+
+maintainers:
+ - Neeli Srinivas <srinivas.neeli@xilinx.com>
+
+description:
+ The AXI GPIO design provides a general purpose input/output interface
+ to an AXI4-Lite interface. The AXI GPIO can be configured as either
+ a single or a dual-channel device. The width of each channel is
+ independently configurable. The channels can be configured to
+ generate an interrupt when a transition on any of their inputs occurs.
+
+properties:
+ compatible:
+ enum:
+ - xlnx,xps-gpio-1.00.a
+
+ reg:
+ maxItems: 1
+
+ "#gpio-cells":
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+ gpio-controller: true
+
+ gpio-line-names:
+ description: strings describing the names of each gpio line
+ minItems: 1
+ maxItems: 64
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ clocks:
+ maxItems: 1
+
+ interrupt-names: true
+
+ xlnx,all-inputs:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This option sets this GPIO channel1 bits in input mode.
+
+ xlnx,all-inputs-2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This option sets this GPIO channel2 bits in input mode.
+
+ xlnx,all-outputs:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This option sets this GPIO channel1 bits in output mode.
+
+ xlnx,all-outputs-2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This option sets this GPIO channel2 bits in output mode.
+
+ xlnx,dout-default:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Sets the default value of all the enabled bits of
+ channel1.
+ default: 0
+
+ xlnx,dout-default-2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Sets the default value of all the enabled bits of
+ channel2.
+ default: 0
+
+ xlnx,gpio-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The value defines the bit width of the GPIO channel1.
+ minimum: 1
+ maximum: 32
+ default: 32
+
+ xlnx,gpio2-width:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: The value defines the bit width of the GPIO channel2.
+ minimum: 1
+ maximum: 32
+ default: 32
+
+ xlnx,interrupt-present:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This parameter enables interrupt control logic
+ and interrupt registers in GPIO module.
+ minimum: 0
+ maximum: 1
+ default: 0
+
+ xlnx,is-dual:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This parameter enables a second GPIO channel (GPIO2).
+ minimum: 0
+ maximum: 1
+ default: 0
+
+ xlnx,tri-default:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This value configures the input or output mode
+ of each bit of GPIO channel1.
+
+ xlnx,tri-default-2:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: This value configures the input or output mode
+ of each bit of GPIO channel2.
+
+required:
+ - reg
+ - compatible
+ - gpio-controller
+ - "#gpio-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ gpio@e000a000 {
+ compatible = "xlnx,xps-gpio-1.00.a";
+ reg = <0xa0020000 0x10000>;
+ #gpio-cells = <2>;
+ #interrupt-cells = <0x2>;
+ clocks = <&zynqmp_clk 71>;
+ gpio-controller;
+ interrupt-controller;
+ interrupt-names = "ip2intc_irpt";
+ interrupt-parent = <&gic>;
+ interrupts = <0 89 4>;
+ xlnx,all-inputs = <0x0>;
+ xlnx,all-inputs-2 = <0x0>;
+ xlnx,all-outputs = <0x0>;
+ xlnx,all-outputs-2 = <0x0>;
+ xlnx,dout-default = <0x0>;
+ xlnx,dout-default-2 = <0x0>;
+ xlnx,gpio-width = <0x20>;
+ xlnx,gpio2-width = <0x20>;
+ xlnx,interrupt-present = <0x1>;
+ xlnx,is-dual = <0x1>;
+ xlnx,tri-default = <0xFFFFFFFF>;
+ xlnx,tri-default-2 = <0xFFFFFFFF>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
index 85f8d4764740..78964c140b46 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
@@ -14,16 +14,21 @@ properties:
pattern: '^gpu@[a-f0-9]+$'
compatible:
- items:
- - enum:
- - amlogic,meson-g12a-mali
- - mediatek,mt8183-mali
- - realtek,rtd1619-mali
- - renesas,r9a07g044-mali
- - renesas,r9a07g054-mali
- - rockchip,px30-mali
- - rockchip,rk3568-mali
- - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable
+ oneOf:
+ - items:
+ - enum:
+ - amlogic,meson-g12a-mali
+ - mediatek,mt8183-mali
+ - realtek,rtd1619-mali
+ - renesas,r9a07g044-mali
+ - renesas,r9a07g054-mali
+ - rockchip,px30-mali
+ - rockchip,rk3568-mali
+ - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable
+ - items:
+ - enum:
+ - mediatek,mt8192-mali
+ - const: arm,mali-valhall-jm # Mali Valhall GPU model/revision is fully discoverable
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
index d209f272625d..2a25384ca3ef 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml
@@ -74,7 +74,8 @@ properties:
- const: bus
mali-supply: true
- opp-table: true
+ opp-table:
+ type: object
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
index eceaa176bd57..318122d95eb5 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
@@ -101,7 +101,8 @@ properties:
mali-supply: true
- opp-table: true
+ opp-table:
+ type: object
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml b/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml
index e6485f7b046f..217c42874f41 100644
--- a/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml
+++ b/Documentation/devicetree/bindings/gpu/brcm,bcm-v3d.yaml
@@ -16,6 +16,7 @@ properties:
compatible:
enum:
+ - brcm,2711-v3d
- brcm,7268-v3d
- brcm,7278-v3d
diff --git a/Documentation/devicetree/bindings/arm/renesas,prr.yaml b/Documentation/devicetree/bindings/hwinfo/renesas,prr.yaml
index 1f80767da38b..792f371cec03 100644
--- a/Documentation/devicetree/bindings/arm/renesas,prr.yaml
+++ b/Documentation/devicetree/bindings/hwinfo/renesas,prr.yaml
@@ -1,7 +1,7 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/arm/renesas,prr.yaml#
+$id: http://devicetree.org/schemas/hwinfo/renesas,prr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas Product Register
diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-chipid.yaml b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
index 4bb8efb83ac1..95cbdcb56efe 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-chipid.yaml
+++ b/Documentation/devicetree/bindings/hwinfo/samsung,exynos-chipid.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: http://devicetree.org/schemas/soc/samsung/exynos-chipid.yaml#
+$id: http://devicetree.org/schemas/hwinfo/samsung,exynos-chipid.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Samsung Exynos SoC series Chipid driver
diff --git a/Documentation/devicetree/bindings/hwinfo/samsung,s5pv210-chipid.yaml b/Documentation/devicetree/bindings/hwinfo/samsung,s5pv210-chipid.yaml
new file mode 100644
index 000000000000..563ded4fca83
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwinfo/samsung,s5pv210-chipid.yaml
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwinfo/samsung,s5pv210-chipid.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S5PV210 SoC ChipID
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+ compatible:
+ const: samsung,s5pv210-chipid
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ chipid@e0000000 {
+ compatible = "samsung,s5pv210-chipid";
+ reg = <0xe0000000 0x1000>;
+ };
diff --git a/Documentation/devicetree/bindings/soc/ti/k3-socinfo.yaml b/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
index a1a8423b2e2e..dada28b47ea0 100644
--- a/Documentation/devicetree/bindings/soc/ti/k3-socinfo.yaml
+++ b/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/soc/ti/k3-socinfo.yaml#
+$id: http://devicetree.org/schemas/hwinfo/ti,k3-socinfo.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments K3 Multicore SoC platforms chipid module
diff --git a/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml b/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
index 154bee851139..d794deb08bb7 100644
--- a/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
+++ b/Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml
@@ -8,7 +8,6 @@ title: Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- - Beniamin Bia <beniamin.bia@analog.com>
description: |
Analog Devices ADM1177 Hot Swap Controller and Digital Power Monitor
diff --git a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
index 6747b870f297..f2f99afb3a3b 100644
--- a/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
+++ b/Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/hwmon/adi,axi-fan-control.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Analog Devices AXI FAN Control Device Tree Bindings
+title: Analog Devices AXI FAN Control
maintainers:
- Nuno Sá <nuno.sa@analog.com>
diff --git a/Documentation/devicetree/bindings/hwmon/adi,max31760.yaml b/Documentation/devicetree/bindings/hwmon/adi,max31760.yaml
new file mode 100644
index 000000000000..9f2d08d7b978
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/adi,max31760.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/adi,max31760.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices MAX31760 Fan-Speed Controller
+
+maintainers:
+ - Ibrahim Tilki <Ibrahim.Tilki@analog.com>
+
+description: |
+ Analog Devices MAX31760 Fan-Speed Controller
+ https://datasheets.maximintegrated.com/en/ds/MAX31760.pdf
+
+properties:
+ compatible:
+ enum:
+ - adi,max31760
+
+ reg:
+ description: I2C address of slave device.
+ minimum: 0x50
+ maximum: 0x57
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fan-controller@50 {
+ reg = <0x50>;
+ compatible = "adi,max31760";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/hwmon/adt7475.yaml b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
index 56baf2e5c6d1..ea595102a86e 100644
--- a/Documentation/devicetree/bindings/hwmon/adt7475.yaml
+++ b/Documentation/devicetree/bindings/hwmon/adt7475.yaml
@@ -57,7 +57,7 @@ patternProperties:
Configures bypassing the individual voltage input attenuator. If
set to 1 the attenuator is bypassed if set to 0 the attenuator is
not bypassed. If the property is absent then the attenuator
- retains it's configuration from the bios/bootloader.
+ retains its configuration from the bios/bootloader.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
diff --git a/Documentation/devicetree/bindings/hwmon/ibm,occ-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/ibm,occ-hwmon.yaml
new file mode 100644
index 000000000000..3dbdc5af2804
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/ibm,occ-hwmon.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/ibm,occ-hwmon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM On-Chip Controller (OCC) accessed from a service processor
+
+maintainers:
+ - Eddie James <eajames@linux.ibm.com>
+
+description: |
+ The POWER processor On-Chip Controller (OCC) helps manage power and
+ thermals for the system. A service processor or baseboard management
+ controller can query the OCC for it's power and thermal data to report
+ through hwmon.
+
+properties:
+ compatible:
+ enum:
+ - ibm,p9-occ-hwmon
+ - ibm,p10-occ-hwmon
+
+ ibm,no-poll-on-init:
+ description: This property describes whether or not the OCC should
+ be polled during driver initialization.
+ type: boolean
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ hwmon {
+ compatible = "ibm,p10-occ-hwmon";
+ ibm,no-poll-on-init;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/ibm,p8-occ-hwmon.txt b/Documentation/devicetree/bindings/hwmon/ibm,p8-occ-hwmon.txt
index 5dc5d2e2573d..5dc5d2e2573d 100644
--- a/Documentation/devicetree/bindings/i2c/ibm,p8-occ-hwmon.txt
+++ b/Documentation/devicetree/bindings/hwmon/ibm,p8-occ-hwmon.txt
diff --git a/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml b/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
index f5a6cc3efd33..e1ccbd30e0eb 100644
--- a/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
+++ b/Documentation/devicetree/bindings/hwmon/iio-hwmon.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/hwmon/iio-hwmon.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: ADC-attached Hardware Sensor Device Tree Bindings
+title: ADC-attached Hardware Sensor
maintainers:
- Jonathan Cameron <jic23@kernel.org>
diff --git a/Documentation/devicetree/bindings/hwmon/microchip,sparx5-temp.yaml b/Documentation/devicetree/bindings/hwmon/microchip,sparx5-temp.yaml
index 76be625d5646..51e8619dbf3c 100644
--- a/Documentation/devicetree/bindings/hwmon/microchip,sparx5-temp.yaml
+++ b/Documentation/devicetree/bindings/hwmon/microchip,sparx5-temp.yaml
@@ -22,7 +22,7 @@ properties:
clocks:
items:
- - description: AHB reference clock
+ - description: System reference clock
'#thermal-sensor-cells':
const: 0
@@ -40,5 +40,5 @@ examples:
compatible = "microchip,sparx5-temp";
reg = <0x10508110 0xc>;
#thermal-sensor-cells = <0>;
- clocks = <&ahb_clk>;
+ clocks = <&sys_clk>;
};
diff --git a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
index b79f069a04c2..d0d549749208 100644
--- a/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
+++ b/Documentation/devicetree/bindings/hwmon/moortec,mr75203.yaml
@@ -9,6 +9,32 @@ title: Moortec Semiconductor MR75203 PVT Controller bindings
maintainers:
- Rahul Tanwar <rtanwar@maxlinear.com>
+description: |
+ A Moortec PVT (Process, Voltage, Temperature) monitoring logic design can
+ include many different units.
+ Such a design will usually consists of several Moortec's embedded analog IPs,
+ and a single Moortec controller (mr75203) to configure and control the IPs.
+
+ Some of the Moortec's analog hard IPs that can be used in a design:
+ *) Temperature Sensor (TS) - used to monitor core temperature (e.g. mr74137).
+ *) Voltage Monitor (VM) - used to monitor voltage levels (e.g. mr74138).
+ *) Process Detector (PD) - used to assess silicon speed (e.g. mr74139).
+ *) Delay Chain - ring oscillator connected to the PD, used to measure IO
+ based transistors (e.g. mr76008 ring oscillator at 1.1V, mr76007 ring
+ oscillator at 1.8V).
+ *) Pre Scaler - provides divide-by-X scaling of input voltage, which can then
+ be presented for VM for measurement within its range (e.g. mr76006 -
+ divide by 2 pre-scaler).
+
+ TS, VM & PD also include a digital interface, which consists of configuration
+ inputs and measurement outputs.
+
+ Some of the units have number of series, each series can have slightly
+ different characteristics.
+
+ The mr75203 binding describes configuration for the controller unit, but also
+ for some of the analog IPs.
+
properties:
compatible:
const: moortec,mr75203
@@ -44,13 +70,76 @@ properties:
"#thermal-sensor-cells":
const: 1
+ moortec,vm-active-channels:
+ description:
+ Defines the number of channels per VM that are actually used and are
+ connected to some input source.
+ Maximum number of items - number of VMs.
+ Maximum value of each item - number of channels.
+ Minimum value of each item - 0 (which means entire VM sensor is not used).
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+
+ moortec,vm-pre-scaler-x2:
+ description:
+ Defines the channels that use a mr76006 pre-scaler to divide the input
+ source by 2.
+ The pre-scaler is used for input sources that exceed the VM input range.
+ The driver uses this information to present to the user with the actual
+ value of the voltage source.
+ For channels that are not listed, no pre-scaler is assumed.
+ Maximum number of items - total number of channels in all VMs.
+ Each channel should not appear more than once.
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+
+ moortec,ts-series:
+ description:
+ Definition of the temperature equation and coefficients that shall be
+ used to convert the digital output to value in milli-Celsius.
+ minimum: 5
+ maximum: 6
+ default: 5
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ moortec,ts-coeff-g:
+ description:
+ G coefficient for temperature equation.
+ Default for series 5 = 60000
+ Default for series 6 = 57400
+ multipleOf: 1000
+ minimum: 1000
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ moortec,ts-coeff-h:
+ description:
+ H coefficient for temperature equation.
+ Default for series 5 = 200000
+ Default for series 6 = 249400
+ multipleOf: 1000
+ minimum: 1000
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ moortec,ts-coeff-cal5:
+ description:
+ cal5 coefficient for temperature equation.
+ Default for series 5 = 4094
+ Default for series 6 = 4096
+ minimum: 1
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ moortec,ts-coeff-j:
+ description:
+ J coefficient for temperature equation.
+ Default for series 5 = -100
+ Default for series 6 = 0
+ multipleOf: 1000
+ maximum: 0
+ $ref: /schemas/types.yaml#/definitions/int32
+
required:
- compatible
- reg
- reg-names
- - intel,vm-map
- clocks
- - resets
- "#thermal-sensor-cells"
additionalProperties: false
@@ -67,5 +156,9 @@ examples:
intel,vm-map = [03 01 04 ff ff];
clocks = <&osc0>;
resets = <&rcu0 0x40 7>;
+ moortec,vm-active-channels = /bits/ 8 <0x10 0x05>;
+ moortec,vm-pre-scaler-x2 = /bits/ 8 <5 6 20>;
+ moortec,ts-coeff-g = <61400>;
+ moortec,ts-coeff-h = <253700>;
#thermal-sensor-cells = <1>;
};
diff --git a/Documentation/devicetree/bindings/hwmon/national,lm90.yaml b/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
index b04657849852..e1719839faf0 100644
--- a/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
+++ b/Documentation/devicetree/bindings/hwmon/national,lm90.yaml
@@ -16,6 +16,7 @@ properties:
- adi,adm1032
- adi,adt7461
- adi,adt7461a
+ - adi,adt7481
- dallas,max6646
- dallas,max6647
- dallas,max6649
@@ -50,6 +51,12 @@ properties:
"#thermal-sensor-cells":
const: 1
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
vcc-supply:
description: phandle to the regulator that provides the +VCC supply
@@ -61,6 +68,29 @@ required:
- compatible
- reg
+patternProperties:
+ "^channel@([0-2])$":
+ type: object
+ description: Represents channels of the device and their specific configuration.
+
+ properties:
+ reg:
+ description: The channel number. 0 is local channel, 1-2 are remote channels.
+ items:
+ minimum: 0
+ maximum: 2
+
+ label:
+ description: A descriptive name for this channel, like "ambient" or "psu".
+
+ temperature-offset-millicelsius:
+ description: Temperature offset to be added to or subtracted from remote temperature measurements.
+
+ required:
+ - reg
+
+ additionalProperties: false
+
allOf:
- if:
not:
@@ -70,12 +100,84 @@ allOf:
enum:
- adi,adt7461
- adi,adt7461a
+ - adi,adt7481
- ti,tmp451
- ti,tmp461
then:
properties:
ti,extended-range-enable: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - dallas,max6646
+ - dallas,max6647
+ - dallas,max6649
+ - dallas,max6657
+ - dallas,max6658
+ - dallas,max6659
+ - dallas,max6695
+ - dallas,max6696
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,adt7461
+ - adi,adt7461a
+ - adi,adt7481
+ - onnn,nct1008
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius:
+ maximum: 127750
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - adi,adm1032
+ - dallas,max6680
+ - dallas,max6681
+ - gmt,g781
+ - national,lm86
+ - national,lm89
+ - national,lm90
+ - national,lm99
+ - nxp,sa56004
+ - winbond,w83l771
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius:
+ maximum: 127875
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,tmp451
+ - ti,tmp461
+ then:
+ patternProperties:
+ "^channel@([0-2])$":
+ properties:
+ temperature-offset-millicelsius:
+ maximum: 127937
+
additionalProperties: false
examples:
@@ -94,3 +196,32 @@ examples:
#thermal-sensor-cells = <1>;
};
};
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sensor@4c {
+ compatible = "adi,adt7481";
+ reg = <0x4c>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ channel@0 {
+ reg = <0x0>;
+ label = "local";
+ };
+
+ channel@1 {
+ reg = <0x1>;
+ label = "front";
+ temperature-offset-millicelsius = <4000>;
+ };
+
+ channel@2 {
+ reg = <0x2>;
+ label = "back";
+ temperature-offset-millicelsius = <750>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml b/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
index 7d49478d9668..159238efa9ed 100644
--- a/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
+++ b/Documentation/devicetree/bindings/hwmon/sensirion,shtc1.yaml
@@ -10,7 +10,7 @@ maintainers:
- Christopher Ruehl chris.ruehl@gtsys.com.hk
description: |
- The SHTC1, SHTW1 and SHTC3 are digital humidity and temperature sensor
+ The SHTC1, SHTW1 and SHTC3 are digital humidity and temperature sensors
designed especially for battery-driven high-volume consumer electronics
applications.
For further information refere to Documentation/hwmon/shtc1.rst
@@ -31,13 +31,13 @@ properties:
sensirion,blocking-io:
$ref: /schemas/types.yaml#/definitions/flag
description:
- If set, the driver hold the i2c bus until measurement is finished.
+ If set, the driver holds the i2c bus until the measurement is finished.
sensirion,low-precision:
$ref: /schemas/types.yaml#/definitions/flag
description:
- If set, the sensor aquire data with low precision (not recommended).
- The driver aquire data with high precision by default.
+ If set, the sensor acquires data with low precision (not recommended).
+ The driver acquires data with high precision by default.
required:
- compatible
diff --git a/Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml b/Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml
index 1b03810d4b4d..5a799246a373 100644
--- a/Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml
+++ b/Documentation/devicetree/bindings/i2c/allwinner,sun6i-a31-p2wi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/i2c/allwinner,sun6i-a31-p2wi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 P2WI (Push/Pull 2 Wires Interface) Device Tree Bindings
+title: Allwinner A31 P2WI (Push/Pull 2 Wires Interface)
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/i2c/amlogic,meson6-i2c.yaml b/Documentation/devicetree/bindings/i2c/amlogic,meson6-i2c.yaml
index 6ecb0270d88d..199a354ccb97 100644
--- a/Documentation/devicetree/bindings/i2c/amlogic,meson6-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/amlogic,meson6-i2c.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson I2C Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
- Beniamino Galvani <b.galvani@gmail.com>
allOf:
diff --git a/Documentation/devicetree/bindings/i2c/arm,i2c-versatile.yaml b/Documentation/devicetree/bindings/i2c/arm,i2c-versatile.yaml
new file mode 100644
index 000000000000..e58465d1b0c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/arm,i2c-versatile.yaml
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/arm,i2c-versatile.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: I2C Controller on ARM Ltd development platforms
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ const: arm,versatile-i2c
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+...
+
diff --git a/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml b/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
index f597f73ccd87..869b4d633353 100644
--- a/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/aspeed,i2c.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/i2c/aspeed,i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: ASPEED I2C on the AST24XX, AST25XX, and AST26XX SoCs Device Tree Bindings
+title: ASPEED I2C on the AST24XX, AST25XX, and AST26XX SoCs
maintainers:
- Rayn Chen <rayn_chen@aspeedtech.com>
diff --git a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
index 1ca1cd19bd1d..2e95cda7262a 100644
--- a/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
+++ b/Documentation/devicetree/bindings/i2c/cdns,i2c-r1p10.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/i2c/cdns,i2c-r1p10.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: Cadence I2C controller Device Tree Bindings
+title: Cadence I2C controller
maintainers:
- Michal Simek <michal.simek@xilinx.com>
diff --git a/Documentation/devicetree/bindings/i2c/i2c-efm32.txt b/Documentation/devicetree/bindings/i2c/i2c-efm32.txt
deleted file mode 100644
index 3b30e54ae3c7..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-efm32.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-* Energymicro efm32 i2c controller
-
-Required properties :
-
- - reg : Offset and length of the register set for the device
- - compatible : should be "energymicro,efm32-i2c"
- - interrupts : the interrupt number
- - clocks : reference to the module clock
-
-Recommended properties :
-
- - clock-frequency : maximal I2C bus clock frequency in Hz.
- - energymicro,location : Decides the location of the USART I/O pins.
- Allowed range : [0 .. 6]
-
-Example:
- i2c0: i2c@4000a000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "energymicro,efm32-i2c";
- reg = <0x4000a000 0x400>;
- interrupts = <9>;
- clocks = <&cmu clk_HFPERCLKI2C0>;
- clock-frequency = <100000>;
- energymicro,location = <3>;
-
- eeprom@50 {
- compatible = "microchip,24c02";
- reg = <0x50>;
- pagesize = <16>;
- };
- };
-
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
index 529bea56d324..4656f5112b84 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx-lpi2c.yaml
@@ -23,6 +23,7 @@ properties:
- fsl,imx8dxl-lpi2c
- fsl,imx8qm-lpi2c
- fsl,imx8ulp-lpi2c
+ - fsl,imx93-lpi2c
- const: fsl,imx7ulp-lpi2c
reg:
@@ -37,10 +38,22 @@ properties:
clock-frequency: true
clock-names:
- maxItems: 1
+ items:
+ - const: per
+ - const: ipg
clocks:
- maxItems: 1
+ maxItems: 2
+
+ dmas:
+ items:
+ - description: DMA controller phandle and request line for TX
+ - description: DMA controller phandle and request line for RX
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
power-domains:
maxItems: 1
@@ -63,5 +76,6 @@ examples:
reg = <0x40A50000 0x10000>;
interrupt-parent = <&intc>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clks IMX7ULP_CLK_LPI2C7>;
+ clocks = <&clks IMX7ULP_CLK_LPI2C7>,
+ <&clks IMX7ULP_CLK_NIC1_BUS_DIV>;
};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-imx.yaml b/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
index 01720e338b4c..85ee1282d6d2 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-imx.yaml
@@ -19,6 +19,17 @@ properties:
- const: fsl,imx21-i2c
- const: fsl,vf610-i2c
- items:
+ - enum:
+ - fsl,ls1012a-i2c
+ - fsl,ls1021a-i2c
+ - fsl,ls1028a-i2c
+ - fsl,ls1043a-i2c
+ - fsl,ls1046a-i2c
+ - fsl,ls1088a-i2c
+ - fsl,ls208xa-i2c
+ - fsl,lx2160a-i2c
+ - const: fsl,vf610-i2c
+ - items:
- const: fsl,imx35-i2c
- const: fsl,imx1-i2c
- items:
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
index 16a1a3118204..4e730fb7be56 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
@@ -27,6 +27,7 @@ properties:
- const: mediatek,mt8173-i2c
- const: mediatek,mt8183-i2c
- const: mediatek,mt8186-i2c
+ - const: mediatek,mt8188-i2c
- const: mediatek,mt8192-i2c
- items:
- enum:
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt7621.txt b/Documentation/devicetree/bindings/i2c/i2c-mt7621.txt
deleted file mode 100644
index bc36f0eb94cd..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-mt7621.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-MediaTek MT7621/MT7628 I2C master controller
-
-Required properties:
-
-- compatible: Should be one of the following:
- - "mediatek,mt7621-i2c": for MT7621/MT7628/MT7688 platforms
-- #address-cells: should be 1.
-- #size-cells: should be 0.
-- reg: Address and length of the register set for the device
-- resets: phandle to the reset controller asserting this device in
- reset
- See ../reset/reset.txt for details.
-
-Optional properties :
-
-Example:
-
-i2c: i2c@900 {
- compatible = "mediatek,mt7621-i2c";
- reg = <0x900 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- resets = <&rstctrl 16>;
- reset-names = "i2c";
-};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt b/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt
deleted file mode 100644
index 72065b0ff680..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-nomadik.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-I2C for Nomadik based systems
-
-Required (non-standard) properties:
- - Nil
-
-Recommended (non-standard) properties:
- - clock-frequency : Maximum bus clock frequency for the device
-
-Optional (non-standard) properties:
- - Nil
-
-Example :
-
-i2c@80004000 {
- compatible = "stericsson,db8500-i2c", "st,nomadik-i2c";
- reg = <0x80004000 0x1000>;
- interrupts = <0 21 0x4>;
- #address-cells = <1>;
- #size-cells = <0>;
- v-i2c-supply = <&db8500_vape_reg>;
-
- clock-frequency = <400000>;
-};
diff --git a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt b/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
deleted file mode 100644
index a37c9455b244..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-ocores.txt
+++ /dev/null
@@ -1,78 +0,0 @@
-Device tree configuration for i2c-ocores
-
-Required properties:
-- compatible : "opencores,i2c-ocores"
- "aeroflexgaisler,i2cmst"
- "sifive,fu540-c000-i2c", "sifive,i2c0"
- For Opencore based I2C IP block reimplemented in
- FU540-C000 SoC.
- "sifive,fu740-c000-i2c", "sifive,i2c0"
- For Opencore based I2C IP block reimplemented in
- FU740-C000 SoC.
- Please refer to sifive-blocks-ip-versioning.txt for
- additional details.
-- reg : bus address start and address range size of device
-- clocks : handle to the controller clock; see the note below.
- Mutually exclusive with opencores,ip-clock-frequency
-- opencores,ip-clock-frequency: frequency of the controller clock in Hz;
- see the note below. Mutually exclusive with clocks
-- #address-cells : should be <1>
-- #size-cells : should be <0>
-
-Optional properties:
-- interrupts : interrupt number.
-- clock-frequency : frequency of bus clock in Hz; see the note below.
- Defaults to 100 KHz when the property is not specified
-- reg-shift : device register offsets are shifted by this value
-- reg-io-width : io register width in bytes (1, 2 or 4)
-- regstep : deprecated, use reg-shift above
-
-Note
-clock-frequency property is meant to control the bus frequency for i2c bus
-drivers, but it was incorrectly used to specify i2c controller input clock
-frequency. So the following rules are set to fix this situation:
-- if clock-frequency is present and neither opencores,ip-clock-frequency nor
- clocks are, then clock-frequency specifies i2c controller clock frequency.
- This is to keep backwards compatibility with setups using old DTB. i2c bus
- frequency is fixed at 100 KHz.
-- if clocks is present it specifies i2c controller clock. clock-frequency
- property specifies i2c bus frequency.
-- if opencores,ip-clock-frequency is present it specifies i2c controller
- clock frequency. clock-frequency property specifies i2c bus frequency.
-
-Examples:
-
- i2c0: ocores@a0000000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "opencores,i2c-ocores";
- reg = <0xa0000000 0x8>;
- interrupts = <10>;
- opencores,ip-clock-frequency = <20000000>;
-
- reg-shift = <0>; /* 8 bit registers */
- reg-io-width = <1>; /* 8 bit read/write */
-
- dummy@60 {
- compatible = "dummy";
- reg = <0x60>;
- };
- };
-or
- i2c0: ocores@a0000000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "opencores,i2c-ocores";
- reg = <0xa0000000 0x8>;
- interrupts = <10>;
- clocks = <&osc>;
- clock-frequency = <400000>; /* i2c bus frequency 400 KHz */
-
- reg-shift = <0>; /* 8 bit registers */
- reg-io-width = <1>; /* 8 bit read/write */
-
- dummy@60 {
- compatible = "dummy";
- reg = <0x60>;
- };
- };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt b/Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt
deleted file mode 100644
index 924ad8c03464..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-qcom-cci.txt
+++ /dev/null
@@ -1,95 +0,0 @@
-Qualcomm Camera Control Interface (CCI) I2C controller
-
-PROPERTIES:
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be one of:
- "qcom,msm8916-cci"
- "qcom,msm8996-cci"
- "qcom,sdm845-cci"
- "qcom,sm8250-cci"
- "qcom,sm8450-cci"
-
-- reg
- Usage: required
- Value type: <prop-encoded-array>
- Definition: base address CCI I2C controller and length of memory
- mapped region.
-
-- interrupts:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: specifies the CCI I2C interrupt. The format of the
- specifier is defined by the binding document describing
- the node's interrupt parent.
-
-- clocks:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: a list of phandle, should contain an entry for each
- entries in clock-names.
-
-- clock-names
- Usage: required
- Value type: <string>
- Definition: a list of clock names, must include "cci" clock.
-
-- power-domains
- Usage: required for "qcom,msm8996-cci"
- Value type: <prop-encoded-array>
- Definition:
-
-SUBNODES:
-
-The CCI provides I2C masters for one (msm8916) or two i2c busses (msm8996,
-sdm845, sm8250 and sm8450), described as subdevices named "i2c-bus@0" and
-"i2c-bus@1".
-
-PROPERTIES:
-
-- reg:
- Usage: required
- Value type: <u32>
- Definition: Index of the CCI bus/master
-
-- clock-frequency:
- Usage: optional
- Value type: <u32>
- Definition: Desired I2C bus clock frequency in Hz, defaults to 100
- kHz if omitted.
-
-Example:
-
- cci@a0c000 {
- compatible = "qcom,msm8996-cci";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0xa0c000 0x1000>;
- interrupts = <GIC_SPI 295 IRQ_TYPE_EDGE_RISING>;
- clocks = <&mmcc MMSS_MMAGIC_AHB_CLK>,
- <&mmcc CAMSS_TOP_AHB_CLK>,
- <&mmcc CAMSS_CCI_AHB_CLK>,
- <&mmcc CAMSS_CCI_CLK>,
- <&mmcc CAMSS_AHB_CLK>;
- clock-names = "mmss_mmagic_ahb",
- "camss_top_ahb",
- "cci_ahb",
- "cci",
- "camss_ahb";
-
- i2c-bus@0 {
- reg = <0>;
- clock-frequency = <400000>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
- i2c-bus@1 {
- reg = <1>;
- clock-frequency = <400000>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
- };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml b/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml
index 5339dd4fc370..82b9d6682297 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-rk3x.yaml
@@ -29,6 +29,7 @@ properties:
- items:
- enum:
- rockchip,rk3036-i2c
+ - rockchip,rk3128-i2c
- rockchip,rk3368-i2c
- const: rockchip,rk3288-i2c
- items:
@@ -37,6 +38,8 @@ properties:
- rockchip,rk3308-i2c
- rockchip,rk3328-i2c
- rockchip,rk3568-i2c
+ - rockchip,rk3588-i2c
+ - rockchip,rv1126-i2c
- const: rockchip,rk3399-i2c
reg:
diff --git a/Documentation/devicetree/bindings/i2c/i2c-versatile.txt b/Documentation/devicetree/bindings/i2c/i2c-versatile.txt
deleted file mode 100644
index 361d31c51b6f..000000000000
--- a/Documentation/devicetree/bindings/i2c/i2c-versatile.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-i2c Controller on ARM Versatile platform:
-
-Required properties:
-- compatible : Must be "arm,versatile-i2c";
-- reg
-- #address-cells = <1>;
-- #size-cells = <0>;
-
-Optional properties:
-- Child nodes conforming to i2c bus binding
diff --git a/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml b/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
index f771c09aabfc..93c164aa00da 100644
--- a/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/marvell,mv64xxx-i2c.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/i2c/marvell,mv64xxx-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Marvell MV64XXX I2C Controller Device Tree Bindings
+title: Marvell MV64XXX I2C Controller
maintainers:
- Gregory CLEMENT <gregory.clement@bootlin.com>
@@ -21,10 +21,18 @@ properties:
- enum:
- allwinner,sun8i-a23-i2c
- allwinner,sun8i-a83t-i2c
+ - allwinner,sun8i-v536-i2c
- allwinner,sun50i-a64-i2c
- - allwinner,sun50i-a100-i2c
- allwinner,sun50i-h6-i2c
+ - const: allwinner,sun6i-a31-i2c
+ - description: Allwinner SoCs with offload support
+ items:
+ - enum:
+ - allwinner,sun20i-d1-i2c
+ - allwinner,sun50i-a100-i2c
- allwinner,sun50i-h616-i2c
+ - allwinner,sun50i-r329-i2c
+ - const: allwinner,sun8i-v536-i2c
- const: allwinner,sun6i-a31-i2c
- const: marvell,mv64xxx-i2c
- const: marvell,mv78230-i2c
@@ -58,6 +66,19 @@ properties:
resets:
maxItems: 1
+ dmas:
+ items:
+ - description: RX DMA Channel
+ - description: TX DMA Channel
+
+ dma-names:
+ items:
+ - const: rx
+ - const: tx
+
+dependencies:
+ dmas: [ dma-names ]
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
new file mode 100644
index 000000000000..118ec00fc190
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/mediatek,mt7621-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+maintainers:
+ - Stefan Roese <sr@denx.de>
+
+title: Mediatek MT7621/MT7628 I2C master controller
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ const: mediatek,mt7621-i2c
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: i2c
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: i2c
+
+required:
+ - compatible
+ - reg
+ - resets
+ - "#address-cells"
+ - "#size-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt7621-clk.h>
+ #include <dt-bindings/reset/mt7621-reset.h>
+
+ i2c: i2c@900 {
+ compatible = "mediatek,mt7621-i2c";
+ reg = <0x900 0x100>;
+ clocks = <&sysc MT7621_CLK_I2C>;
+ clock-names = "i2c";
+ resets = <&sysc MT7621_RST_I2C>;
+ reset-names = "i2c";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c_pins>;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml b/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
deleted file mode 100644
index 93198d5d43a6..000000000000
--- a/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
+++ /dev/null
@@ -1,77 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/i2c/mellanox,i2c-mlxbf.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Mellanox I2C SMBus on BlueField SoCs
-
-maintainers:
- - Khalil Blaiech <kblaiech@nvidia.com>
-
-allOf:
- - $ref: /schemas/i2c/i2c-controller.yaml#
-
-properties:
- compatible:
- enum:
- - mellanox,i2c-mlxbf1
- - mellanox,i2c-mlxbf2
-
- reg:
- minItems: 3
- items:
- - description: Smbus block registers
- - description: Cause master registers
- - description: Cause slave registers
- - description: Cause coalesce registers
-
- interrupts:
- maxItems: 1
-
- clock-frequency:
- enum: [ 100000, 400000, 1000000 ]
- description:
- bus frequency used to configure timing registers;
- The frequency is expressed in Hz. Default is 100000.
-
-required:
- - compatible
- - reg
- - interrupts
-
-unevaluatedProperties: false
-
-if:
- properties:
- compatible:
- contains:
- enum:
- - mellanox,i2c-mlxbf1
-
-then:
- properties:
- reg:
- maxItems: 3
-
-examples:
- - |
- i2c@2804000 {
- compatible = "mellanox,i2c-mlxbf1";
- reg = <0x02804000 0x800>,
- <0x02801200 0x020>,
- <0x02801260 0x020>;
- interrupts = <57>;
- clock-frequency = <100000>;
- };
-
- - |
- i2c@2808800 {
- compatible = "mellanox,i2c-mlxbf2";
- reg = <0x02808800 0x600>,
- <0x02808e00 0x020>,
- <0x02808e20 0x020>,
- <0x02808e40 0x010>;
- interrupts = <57>;
- clock-frequency = <400000>;
- };
diff --git a/Documentation/devicetree/bindings/i2c/microchip,corei2c.yaml b/Documentation/devicetree/bindings/i2c/microchip,corei2c.yaml
index 7bad4b946a34..afa3db726229 100644
--- a/Documentation/devicetree/bindings/i2c/microchip,corei2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/microchip,corei2c.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/i2c/microchip,corei2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip MPFS I2C Controller Device Tree Bindings
+title: Microchip MPFS I2C Controller
maintainers:
- Daire McNamara <daire.mcnamara@microchip.com>
diff --git a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
index 128444942aec..00eb6ff6f5b1 100644
--- a/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/nuvoton,npcm7xx-i2c.yaml
@@ -4,20 +4,21 @@
$id: http://devicetree.org/schemas/i2c/nuvoton,npcm7xx-i2c.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: nuvoton NPCM7XX I2C Controller Device Tree Bindings
+title: nuvoton NPCM7XX I2C Controller
description: |
- The NPCM750x includes sixteen I2C bus controllers. All Controllers support
- both master and slave mode. Each controller can switch between master and slave
- at run time (i.e. IPMB mode). Each controller has two 16 byte HW FIFO for TX and
- RX.
+ I2C bus controllers of the NPCM series support both master and
+ slave mode. Each controller can switch between master and slave at run time
+ (i.e. IPMB mode). HW FIFO for TX and RX are supported.
maintainers:
- Tali Perry <tali.perry1@gmail.com>
properties:
compatible:
- const: nuvoton,npcm750-i2c
+ enum:
+ - nuvoton,npcm750-i2c
+ - nuvoton,npcm845-i2c
reg:
maxItems: 1
@@ -36,6 +37,10 @@ properties:
default: 100000
enum: [100000, 400000, 1000000]
+ nuvoton,sys-mgr:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle of system manager register node.
+
required:
- compatible
- reg
@@ -44,6 +49,15 @@ required:
allOf:
- $ref: /schemas/i2c/i2c-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nuvoton,npcm845-i2c
+
+ then:
+ required:
+ - nuvoton,sys-mgr
unevaluatedProperties: false
@@ -57,6 +71,7 @@ examples:
clock-frequency = <100000>;
interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
compatible = "nuvoton,npcm750-i2c";
+ nuvoton,sys-mgr = <&gcr>;
};
...
diff --git a/Documentation/devicetree/bindings/i2c/opencores,i2c-ocores.yaml b/Documentation/devicetree/bindings/i2c/opencores,i2c-ocores.yaml
new file mode 100644
index 000000000000..85d9efb743ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/opencores,i2c-ocores.yaml
@@ -0,0 +1,113 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/opencores,i2c-ocores.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: OpenCores I2C controller
+
+maintainers:
+ - Peter Korsgaard <peter@korsgaard.com>
+ - Andrew Lunn <andrew@lunn.ch>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - sifive,fu740-c000-i2c # Opencore based IP block FU740-C000 SoC
+ - sifive,fu540-c000-i2c # Opencore based IP block FU540-C000 SoC
+ - const: sifive,i2c0
+ - enum:
+ - opencores,i2c-ocores
+ - aeroflexgaisler,i2cmst
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-frequency:
+ description: |
+ clock-frequency property is meant to control the bus frequency for i2c bus
+ drivers, but it was incorrectly used to specify i2c controller input clock
+ frequency. So the following rules are set to fix this situation:
+ - if clock-frequency is present and neither opencores,ip-clock-frequency nor
+ clocks are, then clock-frequency specifies i2c controller clock frequency.
+ This is to keep backwards compatibility with setups using old DTB. i2c bus
+ frequency is fixed at 100 KHz.
+ - if clocks is present it specifies i2c controller clock. clock-frequency
+ property specifies i2c bus frequency.
+ - if opencores,ip-clock-frequency is present it specifies i2c controller
+ clock frequency. clock-frequency property specifies i2c bus frequency.
+ default: 100000
+
+ reg-io-width:
+ description: |
+ io register width in bytes
+ enum: [1, 2, 4]
+
+ reg-shift:
+ description: |
+ device register offsets are shifted by this value
+ default: 0
+
+ regstep:
+ description: |
+ deprecated, use reg-shift above
+ deprecated: true
+
+ opencores,ip-clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Frequency of the controller clock in Hz. Mutually exclusive with clocks.
+ See the note above.
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+oneOf:
+ - required:
+ - opencores,ip-clock-frequency
+ - required:
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ i2c@a0000000 {
+ compatible = "opencores,i2c-ocores";
+ reg = <0xa0000000 0x8>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <10>;
+ opencores,ip-clock-frequency = <20000000>;
+
+ reg-shift = <0>; /* 8 bit registers */
+ reg-io-width = <1>; /* 8 bit read/write */
+ };
+
+ i2c@b0000000 {
+ compatible = "opencores,i2c-ocores";
+ reg = <0xa0000000 0x8>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <10>;
+ clocks = <&osc>;
+ clock-frequency = <400000>; /* i2c bus frequency 400 KHz */
+
+ reg-shift = <0>; /* 8 bit registers */
+ reg-io-width = <1>; /* 8 bit read/write */
+ };
+...
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
new file mode 100644
index 000000000000..e51a85848d6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
@@ -0,0 +1,243 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/qcom,i2c-cci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Camera Control Interface (CCI) I2C controller
+
+maintainers:
+ - Loic Poulain <loic.poulain@linaro.org>
+ - Robert Foss <robert.foss@linaro.org>
+
+properties:
+ compatible:
+ enum:
+ - qcom,msm8916-cci
+ - qcom,msm8974-cci
+ - qcom,msm8996-cci
+ - qcom,sdm845-cci
+ - qcom,sm8250-cci
+ - qcom,sm8450-cci
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ clocks:
+ minItems: 4
+ maxItems: 6
+
+ clock-names:
+ minItems: 4
+ maxItems: 6
+
+ interrupts:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ "^i2c-bus@[01]$":
+ $ref: /schemas/i2c/i2c-controller.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ maxItems: 1
+
+ clock-frequency:
+ default: 100000
+
+required:
+ - compatible
+ - clock-names
+ - clocks
+ - interrupts
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8996-cci
+ then:
+ required:
+ - power-domains
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8916-cci
+ then:
+ properties:
+ i2c-bus@1: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8916-cci
+ - qcom,msm8996-cci
+ then:
+ properties:
+ clocks:
+ maxItems: 4
+ clock-names:
+ items:
+ - const: camss_top_ahb
+ - const: cci_ahb
+ - const: cci
+ - const: camss_ahb
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sdm845-cci
+ then:
+ properties:
+ clocks:
+ minItems: 6
+ clock-names:
+ items:
+ - const: camnoc_axi
+ - const: soc_ahb
+ - const: slow_ahb_src
+ - const: cpas_ahb
+ - const: cci
+ - const: cci_src
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8250-cci
+ - qcom,sm8450-cci
+ then:
+ properties:
+ clocks:
+ minItems: 5
+ maxItems: 5
+ clock-names:
+ items:
+ - const: camnoc_axi
+ - const: slow_ahb_src
+ - const: cpas_ahb
+ - const: cci
+ - const: cci_src
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,camcc-sdm845.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ cci@ac4a000 {
+ reg = <0x0ac4a000 0x4000>;
+ compatible = "qcom,sdm845-cci";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ interrupts = <GIC_SPI 460 IRQ_TYPE_EDGE_RISING>;
+ power-domains = <&clock_camcc TITAN_TOP_GDSC>;
+
+ clocks = <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>,
+ <&clock_camcc CAM_CC_SOC_AHB_CLK>,
+ <&clock_camcc CAM_CC_SLOW_AHB_CLK_SRC>,
+ <&clock_camcc CAM_CC_CPAS_AHB_CLK>,
+ <&clock_camcc CAM_CC_CCI_CLK>,
+ <&clock_camcc CAM_CC_CCI_CLK_SRC>;
+ clock-names = "camnoc_axi",
+ "soc_ahb",
+ "slow_ahb_src",
+ "cpas_ahb",
+ "cci",
+ "cci_src";
+
+ assigned-clocks = <&clock_camcc CAM_CC_CAMNOC_AXI_CLK>,
+ <&clock_camcc CAM_CC_CCI_CLK>;
+ assigned-clock-rates = <80000000>,
+ <37500000>;
+
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&cci0_default &cci1_default>;
+ pinctrl-1 = <&cci0_sleep &cci1_sleep>;
+
+ i2c-bus@0 {
+ reg = <0>;
+ clock-frequency = <1000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ camera@10 {
+ compatible = "ovti,ov8856";
+ reg = <0x10>;
+
+ reset-gpios = <&tlmm 9 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cam0_default>;
+
+ clocks = <&clock_camcc CAM_CC_MCLK0_CLK>;
+ clock-names = "xvclk";
+ clock-frequency = <19200000>;
+
+ dovdd-supply = <&vreg_lvs1a_1p8>;
+ avdd-supply = <&cam0_avdd_2v8>;
+ dvdd-supply = <&cam0_dvdd_1v2>;
+
+ port {
+ ov8856_ep: endpoint {
+ link-frequencies = /bits/ 64 <360000000 180000000>;
+ data-lanes = <1 2 3 4>;
+ remote-endpoint = <&csiphy0_ep>;
+ };
+ };
+ };
+ };
+
+ cci_i2c1: i2c-bus@1 {
+ reg = <1>;
+ clock-frequency = <1000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ camera@60 {
+ compatible = "ovti,ov7251";
+ reg = <0x60>;
+
+ enable-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cam3_default>;
+
+ clocks = <&clock_camcc CAM_CC_MCLK3_CLK>;
+ clock-names = "xclk";
+ clock-frequency = <24000000>;
+
+ vdddo-supply = <&vreg_lvs1a_1p8>;
+ vdda-supply = <&cam3_avdd_2v8>;
+
+ port {
+ ov7251_ep: endpoint {
+ data-lanes = <0 1>;
+ remote-endpoint = <&csiphy3_ep>;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml b/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
index f9929578c761..c4ace5585e1e 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,rcar-i2c.yaml
@@ -52,6 +52,7 @@ properties:
- enum:
- renesas,i2c-r8a779a0 # R-Car V3U
- renesas,i2c-r8a779f0 # R-Car S4-8
+ - renesas,i2c-r8a779g0 # R-Car V4H
- const: renesas,rcar-gen4-i2c # R-Car Gen4
reg:
diff --git a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
index 2f315489aaae..d3c0d5c427ac 100644
--- a/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
+++ b/Documentation/devicetree/bindings/i2c/renesas,riic.yaml
@@ -60,6 +60,9 @@ properties:
power-domains:
maxItems: 1
+ resets:
+ maxItems: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml b/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml
new file mode 100644
index 000000000000..c46378efc123
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/renesas,rzv2m.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/renesas,rzv2m.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/V2M I2C Bus Interface
+
+maintainers:
+ - Phil Edworthy <phil.edworthy@renesas.com>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,i2c-r9a09g011 # RZ/V2M
+ - const: renesas,rzv2m-i2c
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: Data transmission/reception interrupt
+ - description: Status interrupt
+
+ interrupt-names:
+ items:
+ - const: tia
+ - const: tis
+
+ clock-frequency:
+ default: 100000
+ enum: [ 100000, 400000 ]
+ description:
+ Desired I2C bus clock frequency in Hz.
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-names
+ - clocks
+ - power-domains
+ - resets
+ - '#address-cells'
+ - '#size-cells'
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r9a09g011-cpg.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ i2c0: i2c@a4030000 {
+ compatible = "renesas,i2c-r9a09g011", "renesas,rzv2m-i2c";
+ reg = <0xa4030000 0x80>;
+ interrupts = <GIC_SPI 232 IRQ_TYPE_EDGE_RISING>,
+ <GIC_SPI 236 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "tia", "tis";
+ clocks = <&cpg CPG_MOD R9A09G011_IIC_PCLK0>;
+ resets = <&cpg R9A09G011_IIC_GPA_PRESETN>;
+ power-domains = <&cpg>;
+ clock-frequency = <100000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
new file mode 100644
index 000000000000..42c5974ec7b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/st,nomadik-i2c.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/st,nomadik-i2c.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ST Microelectronics Nomadik I2C Bindings
+
+description: The Nomadik I2C host controller began its life in the ST
+ Microelectronics STn8800 SoC, and was then inherited into STn8810 and
+ STn8815. It was part of the prototype STn8500 which then became ST-Ericsson
+ DB8500 after the merge of these two companies wireless divisions.
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: /schemas/i2c/i2c-controller.yaml#
+
+# Need a custom select here or 'arm,primecell' will match on lots of nodes
+select:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,nomadik-i2c
+ required:
+ - compatible
+
+properties:
+ compatible:
+ oneOf:
+ # The variant found in STn8815
+ - items:
+ - const: st,nomadik-i2c
+ - const: arm,primecell
+ # The variant found in DB8500
+ - items:
+ - const: stericsson,db8500-i2c
+ - const: st,nomadik-i2c
+ - const: arm,primecell
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ oneOf:
+ # Clock name in STn8815
+ - items:
+ - const: mclk
+ - const: apb_pclk
+ # Clock name in DB8500
+ - items:
+ - const: i2cclk
+ - const: apb_pclk
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ clock-frequency:
+ minimum: 1
+ maximum: 400000
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/reset/stericsson,db8500-prcc-reset.h>
+ #include <dt-bindings/arm/ux500_pm_domains.h>
+ i2c@80004000 {
+ compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
+ reg = <0x80004000 0x1000>;
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-frequency = <400000>;
+ clocks = <&prcc_kclk 3 3>, <&prcc_pclk 3 3>;
+ clock-names = "i2cclk", "apb_pclk";
+ power-domains = <&pm_domains DOMAIN_VAPE>;
+ resets = <&prcc_reset DB8500_PRCC_3 DB8500_PRCC_3_RESET_I2C0>;
+ };
+
+ i2c@101f8000 {
+ compatible = "st,nomadik-i2c", "arm,primecell";
+ reg = <0x101f8000 0x1000>;
+ interrupt-parent = <&vica>;
+ interrupts = <20>;
+ clock-frequency = <100000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&i2c0clk>, <&pclki2c0>;
+ clock-names = "mclk", "apb_pclk";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml
index dccbb18b6dc0..bf396e9466aa 100644
--- a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml
@@ -17,6 +17,7 @@ allOf:
contains:
enum:
- st,stm32f7-i2c
+ - st,stm32mp13-i2c
- st,stm32mp15-i2c
then:
properties:
@@ -45,6 +46,7 @@ properties:
enum:
- st,stm32f4-i2c
- st,stm32f7-i2c
+ - st,stm32mp13-i2c
- st,stm32mp15-i2c
reg:
@@ -55,6 +57,11 @@ properties:
- description: interrupt ID for I2C event
- description: interrupt ID for I2C error
+ interrupt-names:
+ items:
+ - const: event
+ - const: error
+
resets:
maxItems: 1
@@ -90,6 +97,8 @@ properties:
- description: register offset within syscfg
- description: register bitmask for FMP bit
+ wakeup-source: true
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/i2c/xlnx,xps-iic-2.00.a.yaml b/Documentation/devicetree/bindings/i2c/xlnx,xps-iic-2.00.a.yaml
index 715dcfa5a922..8d241a703d85 100644
--- a/Documentation/devicetree/bindings/i2c/xlnx,xps-iic-2.00.a.yaml
+++ b/Documentation/devicetree/bindings/i2c/xlnx,xps-iic-2.00.a.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/i2c/xlnx,xps-iic-2.00.a.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: Xilinx IIC controller Device Tree Bindings
+title: Xilinx IIC controller
maintainers:
- info@mocean-labs.com
diff --git a/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml b/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml
index 04da001fc6ec..c002afdbfc7c 100644
--- a/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml
+++ b/Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/i3c/mipi-i3c-hci.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: MIPI I3C HCI Device Tree Bindings
+title: MIPI I3C HCI
maintainers:
- Nicolas Pitre <npitre@baylibre.com>
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adis16201.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adis16201.yaml
index 6f8f8a6258fe..7332442e5661 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adis16201.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adis16201.yaml
@@ -27,15 +27,16 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
-
vdd-supply: true
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
index 4fcbfd93e218..f6f97164c2ca 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adis16240.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: ADIS16240 Programmable Impact Sensor and Recorder driver
maintainers:
- - Alexandru Ardelean <alexandru.ardelean@analog.com>
+ - Alexandru Tachici <alexandru.tachici@analog.com>
description: |
ADIS16240 Programmable Impact Sensor and Recorder driver that supports
@@ -25,14 +25,15 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
-
required:
- compatible
- reg
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml
index d6afc1b8c272..185b68ffb536 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl313.yaml
@@ -4,28 +4,30 @@
$id: http://devicetree.org/schemas/iio/accel/adi,adxl313.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Analog Devices ADXL313 3-Axis Digital Accelerometer
+title: Analog Devices ADXL312, ADXL313, and ADXL314 3-Axis Digital Accelerometers
maintainers:
- Lucas Stankus <lucas.p.stankus@gmail.com>
description: |
- Analog Devices ADXL313 3-Axis Digital Accelerometer that supports
- both I2C & SPI interfaces.
+ Analog Devices ADXL312, ADXL313, and ADXL314 3-Axis Digital Accelerometer that
+ support both I2C & SPI interfaces.
+ https://www.analog.com/en/products/adxl312.html
https://www.analog.com/en/products/adxl313.html
+ https://www.analog.com/en/products/adxl314.html
properties:
compatible:
enum:
+ - adi,adxl312
- adi,adxl313
+ - adi,adxl314
reg:
maxItems: 1
spi-3wire: true
- spi-max-frequency: true
-
vs-supply:
description: Regulator that supplies power to the accelerometer
@@ -48,7 +50,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
index 11d32a288535..346abfb13a3a 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl345.yaml
@@ -32,8 +32,6 @@ properties:
spi-cpol: true
- spi-max-frequency: true
-
interrupts:
maxItems: 1
@@ -42,7 +40,10 @@ required:
- reg
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
@@ -55,7 +56,7 @@ examples:
/* Example for a I2C device node */
accelerometer@2a {
compatible = "adi,adxl345";
- reg = <0x53>;
+ reg = <0x2a>;
interrupt-parent = <&gpio0>;
interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
};
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl355.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl355.yaml
index ba54d6998f2e..14b487088ab4 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adxl355.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl355.yaml
@@ -45,13 +45,14 @@ properties:
vddio-supply:
description: Regulator that provides power to the bus
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl367.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl367.yaml
index d259e796c1d6..f10d98d34cb8 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adxl367.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl367.yaml
@@ -35,8 +35,6 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
-
vdd-supply: true
vddio-supply: true
@@ -45,7 +43,10 @@ required:
- reg
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
index 38b59b6454ce..73a5c8f814cc 100644
--- a/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
@@ -25,14 +25,15 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
-
required:
- compatible
- reg
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bma220.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bma220.yaml
index 942b23ad0712..5dd06f5905b4 100644
--- a/Documentation/devicetree/bindings/iio/accel/bosch,bma220.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/bosch,bma220.yaml
@@ -20,8 +20,6 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
-
vdda-supply: true
vddd-supply: true
vddio-supply: true
@@ -30,7 +28,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml
index 478e75ae0885..457a709b583c 100644
--- a/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml
@@ -72,7 +72,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bmi088.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bmi088.yaml
index 911a1ae9c83f..3cb82576d758 100644
--- a/Documentation/devicetree/bindings/iio/accel/bosch,bmi088.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/bosch,bmi088.yaml
@@ -17,13 +17,13 @@ description: |
properties:
compatible:
enum:
+ - bosch,bmi085-accel
- bosch,bmi088-accel
+ - bosch,bmi090l-accel
reg:
maxItems: 1
- spi-max-frequency: true
-
vdd-supply: true
vddio-supply: true
@@ -48,7 +48,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/fsl,mma7455.yaml b/Documentation/devicetree/bindings/iio/accel/fsl,mma7455.yaml
index 7c8f8bdc2333..c8659c5eba2a 100644
--- a/Documentation/devicetree/bindings/iio/accel/fsl,mma7455.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/fsl,mma7455.yaml
@@ -7,7 +7,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale MMA7455 and MMA7456 three axis accelerometers
maintainers:
- - Joachim Eastwood <manabian@gmail.com>
- Jonathan Cameron <jic23@kernel.org>
description:
@@ -40,13 +39,14 @@ properties:
- "INT1"
- "INT2"
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml b/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml
index 390b87242fcb..f64d99b35492 100644
--- a/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/kionix,kxsd9.yaml
@@ -29,13 +29,14 @@ properties:
mount-matrix:
description: an optional 3x3 mounting rotation matrix.
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml b/Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml
new file mode 100644
index 000000000000..23528dcaa073
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/accel/memsensing,msa311.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/iio/accel/memsensing,msa311.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MEMSensing digital 3-Axis accelerometer
+
+maintainers:
+ - Dmitry Rokosov <ddrokosov@sberdevices.ru>
+
+description: |
+ MSA311 is a tri-axial, low-g accelerometer with I2C digital output for
+ sensitivity consumer applications. It has dynamical user selectable full
+ scales range of +-2g/+-4g/+-8g/+-16g and allows acceleration measurements
+ with output data rates from 1Hz to 1000Hz.
+ Datasheet can be found at following URL
+ https://cdn-shop.adafruit.com/product-files/5309/MSA311-V1.1-ENG.pdf
+
+properties:
+ compatible:
+ const: memsensing,msa311
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ accelerometer@62 {
+ compatible = "memsensing,msa311";
+ reg = <0x62>;
+ interrupt-parent = <&gpio_intc>;
+ interrupts = <29 IRQ_TYPE_EDGE_RISING>;
+ vdd-supply = <&vcc_5v>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/accel/murata,sca3300.yaml b/Documentation/devicetree/bindings/iio/accel/murata,sca3300.yaml
index 55fd3548e3b6..00c990caa1e4 100644
--- a/Documentation/devicetree/bindings/iio/accel/murata,sca3300.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/murata,sca3300.yaml
@@ -17,6 +17,7 @@ properties:
compatible:
enum:
- murata,sca3300
+ - murata,scl3300
reg:
maxItems: 1
@@ -28,7 +29,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/accel/nxp,fxls8962af.yaml b/Documentation/devicetree/bindings/iio/accel/nxp,fxls8962af.yaml
index ad529ab2c6e2..65ce8ea14b52 100644
--- a/Documentation/devicetree/bindings/iio/accel/nxp,fxls8962af.yaml
+++ b/Documentation/devicetree/bindings/iio/accel/nxp,fxls8962af.yaml
@@ -27,8 +27,6 @@ properties:
vdd-supply:
description: phandle to the regulator that provides power to the accelerometer
- spi-max-frequency: true
-
interrupts:
maxItems: 1
@@ -44,7 +42,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
index 31ffa275f5fa..b97559f23b3a 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7091r5.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD7091R5 4-Channel 12-Bit ADC
maintainers:
- - Beniamin Bia <beniamin.bia@analog.com>
+ - Michael Hennerich <michael.hennerich@analog.com>
description: |
Analog Devices AD7091R5 4-Channel 12-Bit ADC
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
index fb3d0dae9bae..75a7184a4735 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7124.yaml
@@ -52,8 +52,6 @@ properties:
avdd-supply:
description: avdd supply can be used as reference for conversion.
- spi-max-frequency: true
-
required:
- compatible
- reg
@@ -106,7 +104,10 @@ patternProperties:
additionalProperties: false
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
index 22b7ed3723f6..cc347dade4ef 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7192.yaml
@@ -30,8 +30,6 @@ properties:
spi-cpha: true
- spi-max-frequency: true
-
clocks:
maxItems: 1
description: phandle to the master clock (mclk)
@@ -94,7 +92,10 @@ required:
- spi-cpol
- spi-cpha
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7280a.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7280a.yaml
index a694d5794d4a..dfb8f305e2f0 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7280a.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7280a.yaml
@@ -28,8 +28,6 @@ properties:
description: IRQ line for the ADC
maxItems: 1
- spi-max-frequency: true
-
adi,voltage-alert-last-chan:
$ref: /schemas/types.yaml#/definitions/uint32
description:
@@ -55,7 +53,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
index a3e39a40c9b3..1bfbeed6f299 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7292.yaml
@@ -30,8 +30,6 @@ properties:
spi-cpha: true
- spi-max-frequency: true
-
'#address-cells':
const: 1
@@ -65,7 +63,10 @@ patternProperties:
additionalProperties: true
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7298.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7298.yaml
index ca414bb396c5..cd8ac5162d27 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7298.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7298.yaml
@@ -24,13 +24,15 @@ properties:
vref-supply: true
vdd-supply: true
- spi-max-frequency: true
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml
index 666414a9c0de..44c671eeda73 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7476.yaml
@@ -66,8 +66,6 @@ properties:
to the other supplies. Needed to be able to establish channel scaling
unless there is also an internal reference available (e.g. ad7091r)
- spi-max-frequency: true
-
adi,conversion-start-gpios:
description: A GPIO used to trigger the start of a conversion
maxItems: 1
@@ -76,9 +74,9 @@ required:
- compatible
- reg
-additionalProperties: false
-
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
# Devices where reference is vcc
- if:
properties:
@@ -158,6 +156,8 @@ allOf:
properties:
adi,conversion-start-gpios: false
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
index 73775174cf57..ac5a47c8f070 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml
@@ -7,8 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD7606 Simultaneous Sampling ADC
maintainers:
- - Beniamin Bia <beniamin.bia@analog.com>
- - Stefan Popa <stefan.popa@analog.com>
+ - Michael Hennerich <michael.hennerich@analog.com>
description: |
Analog Devices AD7606 Simultaneous Sampling ADC
@@ -33,8 +32,6 @@ properties:
spi-cpol: true
- spi-max-frequency: true
-
avcc-supply: true
interrupts:
@@ -106,7 +103,10 @@ required:
- interrupts
- adi,conversion-start-gpios
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
index a85a28145ef6..3ce59d4d065f 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7768-1.yaml
@@ -50,8 +50,6 @@ properties:
reset-gpios:
maxItems: 1
- spi-max-frequency: true
-
spi-cpol: true
spi-cpha: true
@@ -88,7 +86,10 @@ patternProperties:
- reg
additionalProperties: false
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
index e82194974eea..07f9d1c09c7d 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7923.yaml
@@ -8,7 +8,6 @@ title: Analog Devices AD7923 and similars with 4 and 8 Channel ADCs.
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- - Patrick Vasseur <patrick.vasseur@c-s.fr>
description: |
Analog Devices AD7904, AD7914, AD7923, AD7924 4 Channel ADCs, and AD7908,
@@ -37,19 +36,24 @@ properties:
description: |
The regulator supply for ADC reference voltage.
+ adi,range-double:
+ description: Sets the analog input range from 0 to 2xVREF.
+ type: boolean
+
'#address-cells':
const: 1
'#size-cells':
const: 0
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml
index 0b10ed5f74ae..9ee4d977c5ed 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7949.yaml
@@ -49,8 +49,6 @@ properties:
default: 4096000
- spi-max-frequency: true
-
'#io-channel-cells':
const: 1
@@ -64,7 +62,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
index b5aed40d8a50..2d72ff6bcbc0 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,ad9467.yaml
@@ -8,7 +8,6 @@ title: Analog Devices AD9467 and similar High-Speed ADCs
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- - Alexandru Ardelean <alexandru.ardelean@analog.com>
description: |
The AD9467 and the parts similar with it, are high-speed analog-to-digital
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml
index 0924b2b4972b..8e25773d69be 100644
--- a/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/adi,axi-adc.yaml
@@ -8,7 +8,6 @@ title: Analog Devices AXI ADC IP core
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- - Alexandru Ardelean <alexandru.ardelean@analog.com>
description: |
Analog Devices Generic AXI ADC IP core for interfacing an ADC device
diff --git a/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml b/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
index 925f355cc21f..c770ff4998f5 100644
--- a/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/fsl,vf610-adc.yaml
@@ -14,7 +14,14 @@ description:
properties:
compatible:
- const: fsl,vf610-adc
+ oneOf:
+ - items:
+ - enum:
+ - fsl,imx6sx-adc
+ - fsl,imx6ul-adc
+ - const: fsl,vf610-adc
+ - items:
+ - const: fsl,vf610-adc
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml b/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml
index 52490cbb0af0..56bcbe5dcd79 100644
--- a/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/holt,hi8435.yaml
@@ -24,8 +24,6 @@ properties:
GPIO used for controlling the reset pin
maxItems: 1
- spi-max-frequency: true
-
"#io-channel-cells":
const: 1
@@ -33,7 +31,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
index 0bd2fc0356c8..5207c919abe0 100644
--- a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2496.yaml
@@ -22,15 +22,15 @@ properties:
reg:
maxItems: 1
- spi-max-frequency:
- description: maximal spi bus frequency supported
-
required:
- compatible
- vref-supply
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
index c1772b568cd1..875f394576c2 100644
--- a/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/lltc,ltc2497.yaml
@@ -13,10 +13,14 @@ description: |
16bit ADC supporting up to 16 single ended or 8 differential inputs.
I2C interface.
+ https://www.analog.com/media/en/technical-documentation/data-sheets/2497fb.pdf
+ https://www.analog.com/media/en/technical-documentation/data-sheets/2499fe.pdf
+
properties:
compatible:
- const:
- lltc,ltc2497
+ enum:
+ - lltc,ltc2497
+ - lltc,ltc2499
reg: true
vref-supply: true
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1027.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1027.yaml
index 46b7747076b9..d0a7ed26d9ea 100644
--- a/Documentation/devicetree/bindings/iio/adc/maxim,max1027.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1027.yaml
@@ -45,7 +45,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml
index 0cf87556ef82..4f74cb33383a 100644
--- a/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max11100.yaml
@@ -26,13 +26,16 @@ properties:
minimum: 100000
maximum: 4800000
-additionalProperties: false
-
required:
- compatible
- reg
- vref-supply
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml
index e948b3e37b0c..bb336e33ebe2 100644
--- a/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1118.yaml
@@ -28,23 +28,25 @@ properties:
vref-supply:
description: External reference, needed to establish input scaling
-if:
- properties:
- compatible:
- contains:
- const: maxim,max1118
-then:
- required:
- - vref-supply
-else:
- properties:
- vref-supply: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: maxim,max1118
+ then:
+ required:
+ - vref-supply
+ else:
+ properties:
+ vref-supply: false
required:
- compatible
- reg
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max11205.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max11205.yaml
new file mode 100644
index 000000000000..5f9e043cf5cd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max11205.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/maxim,max11205.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim MAX11205 ADC
+
+maintainers:
+ - Ramona Bolboaca <ramona.bolboaca@analog.com>
+
+description: |
+ The MAX11205 is an ultra-low-power (< 300FA max active current),
+ high-resolution, serial-output ADC.
+
+ https://datasheets.maximintegrated.com/en/ds/MAX11205.pdf
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ enum:
+ - maxim,max11205a
+ - maxim,max11205b
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 5000000
+
+ spi-cpha: true
+
+ vref-supply:
+ description:
+ The regulator supply for the ADC reference voltage. This is a differential
+ reference. It is equal to the V_REFP - V_REFN. The maximum value is 3.6V.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - spi-max-frequency
+ - spi-cpha
+ - vref-supply
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ adc@0 {
+ compatible = "maxim,max11205a";
+ reg = <0>;
+ spi-max-frequency = <5000000>;
+ spi-cpha;
+ interrupt-parent = <&gpio>;
+ interrupts = <19 IRQ_TYPE_EDGE_FALLING>;
+ vref-supply = <&max11205_vref>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
index 4c7e0d94bff1..58b12fe8070c 100644
--- a/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
@@ -39,15 +39,16 @@ properties:
thus enabling power-down mode.
maxItems: 1
- spi-max-frequency: true
-
required:
- compatible
- reg
- vdd-supply
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml b/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml
index 65581ad4b816..7f79a06e76f5 100644
--- a/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/mediatek,mt2701-auxadc.yaml
@@ -35,6 +35,7 @@ properties:
- enum:
- mediatek,mt8183-auxadc
- mediatek,mt8186-auxadc
+ - mediatek,mt8188-auxadc
- mediatek,mt8195-auxadc
- mediatek,mt8516-auxadc
- const: mediatek,mt8173-auxadc
diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml
index fcc1ba53b20d..18108f0f3731 100644
--- a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3201.yaml
@@ -32,7 +32,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
spi-cpha: true
spi-cpol: true
@@ -51,7 +50,10 @@ required:
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
index 95ab285f4eba..2c93fb41f172 100644
--- a/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/microchip,mcp3911.yaml
@@ -36,6 +36,13 @@ properties:
description: IRQ line of the ADC
maxItems: 1
+ microchip,data-ready-hiz:
+ description:
+ Data Ready Pin Inactive State Control
+ true = The DR pin state is high-impedance
+ false = The DR pin state is logic high
+ type: boolean
+
microchip,device-addr:
description: Device address when multiple MCP3911 chips are present on the same SPI bus.
$ref: /schemas/types.yaml#/definitions/uint32
@@ -51,7 +58,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml
index 001cf263b7d5..fede2aa64092 100644
--- a/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/nuvoton,npcm750-adc.yaml
@@ -10,11 +10,14 @@ maintainers:
- Tomer Maimon <tmaimon77@gmail.com>
description:
- The NPCM ADC is a 10-bit converter for eight channel inputs.
+ The NPCM7XX ADC is a 10-bit converter and NPCM8XX ADC is a 12-bit converter,
+ both have eight channel inputs.
properties:
compatible:
- const: nuvoton,npcm750-adc
+ enum:
+ - nuvoton,npcm750-adc
+ - nuvoton,npcm845-adc
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml
index 6404fb73f8ed..43abb300fa3d 100644
--- a/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/nxp,lpc1850-adc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP LPC1850 ADC bindings
maintainers:
- - Joachim Eastwood <manabian@gmail.com>
+ - Jonathan Cameron <jic23@kernel.org>
description:
Supports the ADC found on the LPC1850 SoC.
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml
new file mode 100644
index 000000000000..c8cbfd3444be
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-rradc.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/qcom,spmi-rradc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm's SPMI PMIC Round Robin ADC
+
+maintainers:
+ - Caleb Connolly <caleb.connolly@linaro.org>
+
+description: |
+ The Qualcomm SPMI Round Robin ADC (RRADC) provides interface to clients to
+ read the voltage, current and temperature for supported peripherals such as
+ the battery thermistor die temperature, charger temperature, USB and DC input
+ voltage / current and battery ID resistor.
+
+properties:
+ compatible:
+ enum:
+ - qcom,pmi8998-rradc
+ - qcom,pm660-rradc
+
+ reg:
+ maxItems: 1
+
+ qcom,batt-id-delay-ms:
+ description: Sets the hardware settling time for the battery ID resistor.
+ enum: [0, 1, 4, 12, 20, 40, 60, 80]
+
+ "#io-channel-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ pmic {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic_rradc: adc@4500 {
+ compatible = "qcom,pmi8998-rradc";
+ reg = <0x4500>;
+ #io-channel-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
index 74a4a9d95798..8bac0c4120dd 100644
--- a/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/qcom,spmi-vadc.yaml
@@ -58,6 +58,7 @@ required:
patternProperties:
"^.*@[0-9a-f]+$":
type: object
+ additionalProperties: false
description: |
Represents the external channels which are connected to the ADC.
For compatible property "qcom,spmi-vadc" following channels, also known as
diff --git a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
index d66c24cae1e1..61c6157cf5a9 100644
--- a/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/renesas,rzg2l-adc.yaml
@@ -19,6 +19,7 @@ properties:
compatible:
items:
- enum:
+ - renesas,r9a07g043-adc # RZ/G2UL
- renesas,r9a07g044-adc # RZ/G2L
- renesas,r9a07g054-adc # RZ/V2L
- const: renesas,rzg2l-adc
@@ -76,16 +77,35 @@ patternProperties:
properties:
reg:
description: |
- The channel number. It can have up to 8 channels numbered from 0 to 7.
- items:
- - minimum: 0
- maximum: 7
+ The channel number.
required:
- reg
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a07g043-adc
+ then:
+ patternProperties:
+ "^channel@[2-7]$": false
+ "^channel@[0-1]$":
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1
+ else:
+ patternProperties:
+ "^channel@[0-7]$":
+ properties:
+ reg:
+ minimum: 0
+ maximum: 7
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/iio/adc/richtek,rtq6056.yaml b/Documentation/devicetree/bindings/iio/adc/richtek,rtq6056.yaml
new file mode 100644
index 000000000000..88e008629ea8
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/richtek,rtq6056.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/richtek,rtq6056.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RTQ6056 Bi-Directional Current and Power Monitor with 16-bit ADC
+
+maintainers:
+ - ChiYuan Huang <cy_huang@richtek.com>
+
+description: |
+ The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
+ interface, and the device provides full information for system by reading
+ out the loading current and power.
+
+ The device monitors both of the drops across sense resistor and the BUS
+ voltage, converts into the current in amperes, and power in watts through
+ internal analog-to-digital converter ADC. The programmable calibration,
+ adjustable conversion time, and averaging function are also built in for
+ more design flexibility.
+
+ Datasheet is available at
+ https://www.richtek.com/assets/product_file/RTQ6056/DSQ6056-00.pdf
+
+properties:
+ compatible:
+ const: richtek,rtq6056
+
+ reg:
+ maxItems: 1
+
+ "#io-channel-cells":
+ const: 1
+
+ shunt-resistor-micro-ohms:
+ description: Shunt IN+/IN- sensing node resistor
+
+required:
+ - compatible
+ - reg
+ - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ adc@40 {
+ compatible = "richtek,rtq6056";
+ reg = <0x40>;
+ #io-channel-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
index 92f9472a77ae..1970503389aa 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-dfsdm-adc.yaml
@@ -72,6 +72,7 @@ additionalProperties: false
patternProperties:
"^filter@[0-9]+$":
type: object
+ unevaluatedProperties: false
description: child node
properties:
@@ -225,6 +226,7 @@ patternProperties:
patternProperties:
"^dfsdm-dai+$":
type: object
+ additionalProperties: false
description: child node
properties:
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml b/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml
index 9049c699152f..333744a2159c 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/st,stmpe-adc.yaml
@@ -13,8 +13,7 @@ description:
This ADC forms part of an ST microelectronics STMPE multifunction device .
The ADC is shared with the STMPE touchscreen. As a result some ADC related
settings are specified in the parent node.
- The node name myst be stmpe_adc and should be a child node of the stmpe node
- to which it belongs.
+ The node should be a child node of the stmpe node to which it belongs.
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml
index f5a923cc847f..686721176a58 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc0832.yaml
@@ -24,8 +24,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply:
description: External reference, needed to establish input scaling
@@ -37,7 +35,10 @@ required:
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc084s021.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc084s021.yaml
index 1a113b30a414..726d2cbfa368 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc084s021.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc084s021.yaml
@@ -19,8 +19,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply:
description: External reference, needed to establish input scaling
@@ -37,7 +35,10 @@ required:
- spi-cpol
- spi-cpha
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml
index 54955f03df93..9b072b057f16 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc108s102.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments ADC108S102 and ADC128S102
maintainers:
- - Bogdan Pricop <bogdan.pricop@emutex.com>
+ - Jonathan Cameron <jic23@kernel.org>
description: |
Family of 8 channel, 10/12 bit, SPI, single ended ADCs.
@@ -19,7 +19,6 @@ properties:
reg: true
vref-supply: true
- spi-max-frequency: true
"#io-channel-cells":
const: 1
@@ -28,7 +27,10 @@ required:
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml
index ec3b2edf1fb7..076088a328c3 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc12138.yaml
@@ -31,8 +31,6 @@ properties:
maxItems: 1
description: Conversion clock input.
- spi-max-frequency: true
-
vref-p-supply:
description: The regulator supply for positive analog voltage reference
@@ -62,7 +60,10 @@ required:
- clocks
- vref-p-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
index d54a0183f024..775eee972b12 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc128s052.yaml
@@ -27,8 +27,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply: true
"#io-channel-cells":
@@ -39,7 +37,10 @@ required:
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml b/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml
index 3f4f334d6f73..afe782522904 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,adc161s626.yaml
@@ -21,8 +21,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vdda-supply: true
"#io-channel-cells":
@@ -32,7 +30,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml
index a3b79438a13a..2c3c2cf2145c 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads1015.yaml
@@ -43,6 +43,7 @@ additionalProperties: false
patternProperties:
"^channel@[0-7]+$":
type: object
+ additionalProperties: false
description:
Child nodes needed for each channel that the platform uses.
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads124s08.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads124s08.yaml
index 9f5e96439c01..56a3f1766aab 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,ads124s08.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads124s08.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments' ads124s08 and ads124s06 ADC chip
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
properties:
compatible:
@@ -18,8 +18,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
spi-cpha: true
reset-gpios:
@@ -32,7 +30,10 @@ required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads131e08.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads131e08.yaml
index e0670e3fbb72..55c2c73626f4 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,ads131e08.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads131e08.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments ADS131E0x 4-, 6- and 8-Channel ADCs
maintainers:
- - Tomislav Denis <tomislav.denis@avl.com>
+ - Jonathan Cameron <jic23@kernel.org>
description: |
The ADS131E0x are a family of multichannel, simultaneous sampling,
@@ -28,8 +28,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
spi-cpha: true
clocks:
@@ -120,7 +118,10 @@ patternProperties:
additionalProperties: false
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml
index b8c398187d5c..f75b2c702986 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads8344.yaml
@@ -19,8 +19,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply:
description: Supply the 2.5V or 5V reference voltage
@@ -32,7 +30,10 @@ required:
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml b/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml
index a0af4b24877f..f26fdbc15f84 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,ads8688.yaml
@@ -25,13 +25,14 @@ properties:
description: Optional external reference. If not supplied, assume
REFSEL input tied low to enable the internal reference.
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,am3359-adc.yaml b/Documentation/devicetree/bindings/iio/adc/ti,am3359-adc.yaml
index d6f21d5cccd7..b32be24a9f98 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,am3359-adc.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,am3359-adc.yaml
@@ -11,9 +11,14 @@ maintainers:
properties:
compatible:
- enum:
- - ti,am3359-adc
- - ti,am4372-adc
+ oneOf:
+ - enum:
+ - ti,am3359-adc
+ - ti,am4372-adc
+ - items:
+ - enum:
+ - ti,am654-adc
+ - const: ti,am3359-adc
'#io-channel-cells':
const: 1
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml b/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml
index 6c2539b3d707..314d1d99bf73 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,tlc4541.yaml
@@ -21,8 +21,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply: true
"#io-channel-cells":
@@ -33,7 +31,10 @@ required:
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml b/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
index 601d69971d84..bdf3bba2d750 100644
--- a/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml
@@ -23,7 +23,8 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
+ vref-supply:
+ description: Optional supply of the reference voltage
"#io-channel-cells":
const: 1
@@ -59,7 +60,10 @@ patternProperties:
additionalProperties: false
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml b/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
index 3698b4b0900f..be93c109d6ac 100644
--- a/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/xlnx,zynqmp-ams.yaml
@@ -134,6 +134,7 @@ properties:
ams-pl@400:
type: object
+ additionalProperties: false
description:
PL-SYSMON is capable of monitoring off chip voltage and temperature.
PL-SYSMON block has DRP, JTAG and I2C interface to enable monitoring
diff --git a/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml b/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
index baa65a521bad..03bb90a7f4f8 100644
--- a/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
+++ b/Documentation/devicetree/bindings/iio/addac/adi,ad74413r.yaml
@@ -63,6 +63,7 @@ additionalProperties: false
patternProperties:
"^channel@[0-3]$":
type: object
+ additionalProperties: false
description: Represents the external channels which are connected to the device.
properties:
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,ada4250.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,ada4250.yaml
index 5277479be382..c15da155d300 100644
--- a/Documentation/devicetree/bindings/iio/amplifiers/adi,ada4250.yaml
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,ada4250.yaml
@@ -27,14 +27,15 @@ properties:
Enable internal buffer to drive the reference pin.
type: boolean
- spi-max-frequency: true
-
required:
- compatible
- reg
- avdd-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
index a557761d8016..9fda56fa49c3 100644
--- a/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
+++ b/Documentation/devicetree/bindings/iio/amplifiers/adi,hmc425a.yaml
@@ -8,7 +8,6 @@ title: HMC425A 6-bit Digital Step Attenuator
maintainers:
- Michael Hennerich <michael.hennerich@analog.com>
- - Beniamin Bia <beniamin.bia@analog.com>
description: |
Digital Step Attenuator IIO device with gpio interface.
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml
index 9c48c76993fe..fee0f023a8c8 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad3552r.yaml
@@ -78,6 +78,7 @@ patternProperties:
custom-output-range-config:
type: object
+ additionalProperties: false
description: Configuration of custom range when
adi,output-range-microvolt is not present.
The formulas for calculation the output voltages are
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml
index 05ed4e0ec364..c04165fa9259 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5064.yaml
@@ -95,15 +95,12 @@ properties:
vrefD-supply: true
vref-supply: true
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- # Shared external vref, no internal reference
if:
properties:
@@ -232,6 +229,8 @@ allOf:
- vrefA-supply
- vrefB-supply
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml
index 65f86f26947c..86e2884cdfb1 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5360.yaml
@@ -28,10 +28,6 @@ properties:
vref1-supply: true
vref2-supply: true
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
@@ -39,6 +35,7 @@ required:
- vref1-supply
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -63,6 +60,8 @@ allOf:
required:
- vref2-supply
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml
index d599b418a020..ff50c72c62b5 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5380.yaml
@@ -39,14 +39,15 @@ properties:
description:
If not supplied devices will use internal regulators.
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml
index 188f656617e3..52d089ebde95 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5421.yaml
@@ -26,13 +26,14 @@ properties:
maxItems: 1
description: Fault signal.
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml
index 044332c97743..d2af2d491986 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5449.yaml
@@ -27,19 +27,16 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
VREF-supply: true
VREFA-supply: true
VREFB-supply: true
-additionalProperties: false
-
required:
- compatible
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -72,6 +69,8 @@ allOf:
- VREFA-supply
- VREFB-supply
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml
index 330383b85eeb..4d5111a5f9bd 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5624r.yaml
@@ -22,17 +22,18 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply:
description: If not present, internal reference will be used.
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml
index 5c26441eae9f..13f214234b8e 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5686.yaml
@@ -53,14 +53,15 @@ properties:
vcc-supply:
description: If not supplied the internal reference is used.
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml
index f866b88e1440..9a3c2926bf85 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5755.yaml
@@ -25,8 +25,6 @@ properties:
description: Either this or spi-cpol but not both.
spi-cpol: true
- spi-max-frequency: true
-
adi,ext-dc-dc-compenstation-resistor:
$ref: /schemas/types.yaml#/definitions/flag
description:
@@ -67,8 +65,6 @@ required:
- compatible
- reg
-additionalProperties: false
-
patternProperties:
"^channel@[0-7]$":
type: object
@@ -123,6 +119,11 @@ oneOf:
- required:
- spi-cpol
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml
index fd4edca34a28..e49e7556175d 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5758.yaml
@@ -16,7 +16,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
spi-cpha: true
adi,dc-dc-mode:
@@ -99,6 +98,7 @@ required:
- adi,dc-dc-mode
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
adi,dc-dc-mode:
@@ -115,7 +115,7 @@ allOf:
required:
- adi,range-microvolt
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml
index 7f95a9ed55fe..df550b5af2f7 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5761.yaml
@@ -22,18 +22,15 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply:
description: If not supplied, internal reference will be used.
-additionalProperties: false
-
required:
- compatible
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -45,6 +42,8 @@ allOf:
required:
- vref-supply
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml
index 8e893d52bfb1..0b409a727a43 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5764.yaml
@@ -22,18 +22,15 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vrefAB-supply: true
vrefCD-supply: true
-additionalProperties: false
-
required:
- compatible
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -46,6 +43,8 @@ allOf:
- vrefAB-supply
- vrefCD-supply
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml
index a8f7720d1e3e..29bd16dab546 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5766.yaml
@@ -22,6 +22,8 @@ properties:
- adi,ad5767
output-range-microvolts:
+ $ref: /schemas/types.yaml#/definitions/int32-array
+ maxItems: 2
description: Select converter output range.
reg:
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
index fb2c48fc7ce4..8e7da0de918f 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5770r.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices AD5770R DAC device driver
maintainers:
- - Mircea Caprioru <mircea.caprioru@analog.com>
+ - Alexandru Tachici <alexandru.tachici@analog.com>
description: |
Bindings for the Analog Devices AD5770R current DAC device. Datasheet can be
@@ -49,8 +49,6 @@ properties:
asserted during driver probe.
maxItems: 1
- spi-max-frequency: true
-
'#address-cells':
const: 1
@@ -62,6 +60,7 @@ properties:
connected to the DAC. Channel 0 can act both as a current
source and sink.
type: object
+ additionalProperties: false
properties:
reg:
@@ -85,6 +84,7 @@ properties:
description: Represents an external channel which are
connected to the DAC.
type: object
+ additionalProperties: false
properties:
reg:
@@ -101,6 +101,7 @@ properties:
description: Represents an external channel which are
connected to the DAC.
type: object
+ additionalProperties: false
properties:
reg:
@@ -116,6 +117,7 @@ properties:
patternProperties:
"^channel@([3-5])$":
type: object
+ additionalProperties: false
description: Represents the external channels which are connected to the DAC.
properties:
reg:
@@ -138,7 +140,10 @@ required:
- channel@4
- channel@5
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
index 650d1ebdcec3..3a84739736f6 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5791.yaml
@@ -23,19 +23,20 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vdd-supply: true
vss-supply: true
-additionalProperties: false
-
required:
- compatible
- reg
- vdd-supply
- vss-supply
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml
index 6a3990a8d0ad..1849a2ff05c7 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ad8801.yaml
@@ -19,19 +19,16 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
vrefh-supply: true
vrefl-supply: true
-additionalProperties: false
-
required:
- compatible
- reg
- vrefh-supply
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -44,6 +41,8 @@ allOf:
properties:
vrefl-supply: false
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml b/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml
index 48f9e7d29423..15cc6bf59b13 100644
--- a/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/adi,ltc2688.yaml
@@ -48,6 +48,7 @@ properties:
patternProperties:
"^channel@([0-9]|1[0-5])$":
type: object
+ additionalProperties: false
properties:
reg:
diff --git a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
index 12a14b3f36cb..19374401e509 100644
--- a/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/microchip,mcp4922.yaml
@@ -15,22 +15,24 @@ properties:
enum:
- microchip,mcp4902
- microchip,mcp4912
+ - microchip,mcp4921
- microchip,mcp4922
reg:
maxItems: 1
- spi-max-frequency: true
-
vref-supply: true
-additionalProperties: false
-
required:
- compatible
- reg
- vref-supply
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml
index b0157050f1ee..201b04af2b22 100644
--- a/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac082s085.yaml
@@ -33,21 +33,22 @@ properties:
vref-supply:
description: Needed to provide output scaling.
- spi-max-frequency: true
-
required:
- compatible
- reg
- vref-supply
-additionalProperties: false
-
oneOf:
- required:
- spi-cpha
- required:
- spi-cpol
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
vref_2v5_reg: regulator-vref {
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml
index 714191724f7c..88298bc43b81 100644
--- a/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac5571.yaml
@@ -21,6 +21,7 @@ properties:
- ti,dac5573
- ti,dac6573
- ti,dac7573
+ - ti,dac121c081
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml
index 10be98d1f19c..a6814587dbc4 100644
--- a/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7311.yaml
@@ -24,14 +24,15 @@ properties:
Reference voltage must be supplied to establish the scaling of the
output voltage.
- spi-max-frequency: true
-
required:
- compatible
- reg
- vref-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml b/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml
index d172b142f6ed..20dd1370660d 100644
--- a/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml
+++ b/Documentation/devicetree/bindings/iio/dac/ti,dac7612.yaml
@@ -29,13 +29,14 @@ properties:
DACs are loaded when the pin connected to this GPIO is pulled low.
maxItems: 1
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml b/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
index 6b3a611e1cf1..0144f74a4768 100644
--- a/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
+++ b/Documentation/devicetree/bindings/iio/frequency/adf4371.yaml
@@ -40,15 +40,16 @@ properties:
output stage will shut down until the ADF4371/ADF4372 achieves lock as
measured by the digital lock detect circuitry.
- spi-max-frequency: true
-
required:
- compatible
- reg
- clocks
- clock-names
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/gyroscope/bosch,bmg160.yaml b/Documentation/devicetree/bindings/iio/gyroscope/bosch,bmg160.yaml
index b6bbc312a7cf..1414ba9977c1 100644
--- a/Documentation/devicetree/bindings/iio/gyroscope/bosch,bmg160.yaml
+++ b/Documentation/devicetree/bindings/iio/gyroscope/bosch,bmg160.yaml
@@ -24,8 +24,10 @@ properties:
interrupts:
minItems: 1
+ maxItems: 2
description:
Should be configured with type IRQ_TYPE_EDGE_RISING.
+ If two interrupts are provided, expected order is INT1 and INT2.
required:
- compatible
diff --git a/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml b/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml
index d861526c5c42..6c5ad426a016 100644
--- a/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml
+++ b/Documentation/devicetree/bindings/iio/health/ti,afe4403.yaml
@@ -25,14 +25,15 @@ properties:
reset-gpios: true
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
#include <dt-bindings/gpio/gpio.h>
diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
index 340be256f283..d166dbca18c3 100644
--- a/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16460.yaml
@@ -25,8 +25,6 @@ properties:
spi-cpol: true
- spi-max-frequency: true
-
interrupts:
maxItems: 1
@@ -35,7 +33,10 @@ required:
- reg
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/imu/adi,adis16480.yaml b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.yaml
index 5dbe24be9925..56e0dc20f5e4 100644
--- a/Documentation/devicetree/bindings/iio/imu/adi,adis16480.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/adi,adis16480.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices ADIS16480 and similar IMUs
maintainers:
- - Alexandru Ardelean <alexandru.ardelean@analog.com>
+ - Alexandru Tachici <alexandru.tachici@analog.com>
properties:
compatible:
@@ -47,8 +47,6 @@ properties:
- DIO3
- DIO4
- spi-max-frequency: true
-
spi-cpha: true
spi-cpol: true
@@ -96,8 +94,6 @@ properties:
- DIO3
- DIO4
-additionalProperties: false
-
required:
- compatible
- reg
@@ -106,6 +102,11 @@ required:
- spi-cpol
- spi-max-frequency
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
diff --git a/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml b/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml
index 6e73cd889b5c..a0760382548d 100644
--- a/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/bosch,bmi160.yaml
@@ -46,13 +46,14 @@ properties:
mount-matrix:
description: an optional 3x3 mounting rotation matrix
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/imu/bosch,bno055.yaml b/Documentation/devicetree/bindings/iio/imu/bosch,bno055.yaml
new file mode 100644
index 000000000000..e0d06db161a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/imu/bosch,bno055.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/imu/bosch,bno055.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bosch BNO055
+
+maintainers:
+ - Andrea Merello <andrea.merello@iit.it>
+
+description: |
+ Inertial Measurement Unit with Accelerometer, Gyroscope, Magnetometer and
+ internal MCU for sensor fusion
+ https://www.bosch-sensortec.com/products/smart-sensors/bno055/
+
+properties:
+ compatible:
+ enum:
+ - bosch,bno055
+
+ reg:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ serial {
+ imu {
+ compatible = "bosch,bno055";
+ reset-gpios = <&gpio0 54 GPIO_ACTIVE_LOW>;
+ clocks = <&imu_clk>;
+ };
+ };
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ imu@28 {
+ compatible = "bosch,bno055";
+ reg = <0x28>;
+ reset-gpios = <&gpio0 54 GPIO_ACTIVE_LOW>;
+ clocks = <&imu_clk>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml b/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml
index 4c1c083d0e92..488349755c99 100644
--- a/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/invensense,icm42600.yaml
@@ -47,7 +47,6 @@ properties:
vddio-supply:
description: Regulator that provides power to the bus
- spi-max-frequency: true
spi-cpha: true
spi-cpol: true
@@ -56,7 +55,10 @@ required:
- reg
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/imu/invensense,mpu6050.yaml b/Documentation/devicetree/bindings/iio/imu/invensense,mpu6050.yaml
index 3ebc6526d82d..ec64d7877fe5 100644
--- a/Documentation/devicetree/bindings/iio/imu/invensense,mpu6050.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/invensense,mpu6050.yaml
@@ -40,8 +40,6 @@ properties:
interrupts:
maxItems: 1
- spi-max-frequency: true
-
vdd-supply: true
vddio-supply: true
@@ -54,6 +52,7 @@ properties:
These devices also support an auxiliary i2c bus via an i2c-gate.
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
not:
properties:
@@ -67,7 +66,7 @@ allOf:
properties:
i2c-gate: false
-additionalProperties: false
+unevaluatedProperties: false
required:
- compatible
diff --git a/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml b/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
index 479e7065d4eb..24416b59b782 100644
--- a/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/nxp,fxos8700.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale FXOS8700 Inertial Measurement Unit
maintainers:
- - Robert Jones <rjones@gateworks.com>
+ - Jonathan Cameron <jic23@kernel.org>
description: |
Accelerometer and magnetometer combo device with an i2c and SPI interface.
@@ -36,13 +36,14 @@ properties:
drive-open-drain:
type: boolean
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml b/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml
index 5d4839f00898..fe1e02e5d7b3 100644
--- a/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml
+++ b/Documentation/devicetree/bindings/iio/imu/st,lsm6dsx.yaml
@@ -35,6 +35,9 @@ properties:
- items:
- const: st,asm330lhhx
- const: st,lsm6dsr
+ - items:
+ - const: st,lsm6dstx
+ - const: st,lsm6dst
reg:
maxItems: 1
@@ -45,8 +48,6 @@ properties:
description:
Supports up to 2 interrupt lines via the INT1 and INT2 pins.
- spi-max-frequency: true
-
vdd-supply:
description: if defined provides VDD power to the sensor.
@@ -81,12 +82,15 @@ properties:
wakeup-source:
$ref: /schemas/types.yaml#/definitions/flag
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
diff --git a/Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml b/Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml
new file mode 100644
index 000000000000..7de1b0e721ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/liteon,ltrf216a.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/light/liteon,ltrf216a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LTRF216A Ambient Light Sensor
+
+maintainers:
+ - Shreeya Patel <shreeya.patel@collabora.com>
+
+description:
+ Ambient light sensing with an i2c interface.
+
+properties:
+ compatible:
+ const: liteon,ltrf216a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ description: Regulator that provides power to the sensor.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ light-sensor@53 {
+ compatible = "liteon,ltrf216a";
+ reg = <0x53>;
+ vdd-supply = <&vdd_regulator>;
+ interrupt-parent = <&gpio0>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp41010.yaml b/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp41010.yaml
index 567697d996ec..87e88f2a9908 100644
--- a/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp41010.yaml
+++ b/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp41010.yaml
@@ -25,14 +25,15 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4131.yaml b/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4131.yaml
index 32e92bced81f..896fe0b5edcc 100644
--- a/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4131.yaml
+++ b/Documentation/devicetree/bindings/iio/potentiometer/microchip,mcp4131.yaml
@@ -80,14 +80,15 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml b/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
index be2be4b556db..1f9fe15b4b3c 100644
--- a/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
+++ b/Documentation/devicetree/bindings/iio/pressure/asc,dlhl60d.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: All Sensors DLH series low voltage digital pressure sensors
maintainers:
- - Tomislav Denis <tomislav.denis@avl.com>
+ - Jonathan Cameron <jic23@kernel.org>
description: |
Bindings for the All Sensors DLH series pressure sensors.
diff --git a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
index 49257f9251e8..72cd2c2d3f17 100644
--- a/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
+++ b/Documentation/devicetree/bindings/iio/pressure/bmp085.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/iio/pressure/bmp085.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: BMP085/BMP180/BMP280/BME280 pressure iio sensors
+title: BMP085/BMP180/BMP280/BME280/BMP380 pressure iio sensors
maintainers:
- Andreas Klinger <ak@it-klinger.de>
@@ -16,6 +16,7 @@ description: |
https://www.bosch-sensortec.com/bst/products/all_products/bmp180
https://www.bosch-sensortec.com/bst/products/all_products/bmp280
https://www.bosch-sensortec.com/bst/products/all_products/bme280
+ https://www.bosch-sensortec.com/bst/products/all_products/bmp380
properties:
compatible:
@@ -24,6 +25,7 @@ properties:
- bosch,bmp180
- bosch,bmp280
- bosch,bme280
+ - bosch,bmp380
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
index b8a6ee16854f..b3aa2ebf9661 100644
--- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml
@@ -126,6 +126,42 @@ properties:
UINT_MAX (4294967295) represents infinite. Other values
represent 1-1/N.
+ semtech,cs-idle-sleep:
+ description:
+ State of CS pins during sleep mode and idle time.
+ enum:
+ - hi-z
+ - gnd
+ - vdd
+
+ semtech,int-comp-resistor:
+ description:
+ Internal resistor setting for compensation.
+ enum:
+ - lowest
+ - low
+ - high
+ - highest
+
+ semtech,input-precharge-resistor-ohms:
+ default: 4000
+ multipleOf: 2000
+ minimum: 0
+ maximum: 30000
+ description:
+ Pre-charge input resistance in Ohm.
+
+ semtech,input-analog-gain:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+ description: |
+ Defines the input antenna analog gain
+ 0: x1.247
+ 1: x1 (default)
+ 2: x0.768
+ 3: x0.552
+
required:
- compatible
- reg
@@ -157,5 +193,8 @@ examples:
semtech,ph01-proxraw-strength = <2>;
semtech,ph23-proxraw-strength = <2>;
semtech,avg-pos-strength = <64>;
+ semtech,int-comp-resistor = "lowest";
+ semtech,input-precharge-resistor-ohms = <2000>;
+ semtech,cs-idle-sleep = "gnd";
};
};
diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml
index 63e1a1fd00d4..f088c5d2be99 100644
--- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml
@@ -61,6 +61,14 @@ properties:
UINT_MAX (4294967295) represents infinite. Other values
represent 1-1/N.
+ semtech,input-precharge-resistor-ohms:
+ default: 0
+ multipleOf: 2000
+ minimum: 0
+ maximum: 30000
+ description:
+ Pre-charge input resistance in Ohm.
+
required:
- compatible
- reg
@@ -85,5 +93,6 @@ examples:
semtech,resolution = <256>;
semtech,proxraw-strength = <2>;
semtech,avg-pos-strength = <64>;
+ semtech,input-precharge-resistor-ohms = <4000>;
};
};
diff --git a/Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml b/Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml
index 656460d9d8c8..322befc41de6 100644
--- a/Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml
+++ b/Documentation/devicetree/bindings/iio/proximity/st,vl53l0x.yaml
@@ -19,6 +19,11 @@ properties:
interrupts:
maxItems: 1
+ reset-gpios:
+ maxItems: 1
+
+ vdd-supply: true
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/iio/samsung,sensorhub-rinato.yaml b/Documentation/devicetree/bindings/iio/samsung,sensorhub-rinato.yaml
index a88b3b14d6bd..dd2ae2bd1ad7 100644
--- a/Documentation/devicetree/bindings/iio/samsung,sensorhub-rinato.yaml
+++ b/Documentation/devicetree/bindings/iio/samsung,sensorhub-rinato.yaml
@@ -40,10 +40,6 @@ properties:
description:
Reset the sensorhub.
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- compatible
- reg
@@ -52,6 +48,11 @@ required:
- mcu-ap-gpios
- mcu-reset-gpios
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/iio/st,st-sensors.yaml b/Documentation/devicetree/bindings/iio/st,st-sensors.yaml
index fcb2902683c7..250439b13152 100644
--- a/Documentation/devicetree/bindings/iio/st,st-sensors.yaml
+++ b/Documentation/devicetree/bindings/iio/st,st-sensors.yaml
@@ -73,6 +73,7 @@ properties:
- description: STMicroelectronics Pressure Sensors
enum:
- st,lps001wp-press
+ - st,lps22df
- st,lps22hb-press
- st,lps22hh
- st,lps25h-press
@@ -141,6 +142,7 @@ allOf:
- st,lis2mdl
- st,lis3l02dq
- st,lis3lv02dl-accel
+ - st,lps22df
- st,lps22hb-press
- st,lps22hh
- st,lps25h-press
diff --git a/Documentation/devicetree/bindings/iio/temperature/maxim,max31855k.yaml b/Documentation/devicetree/bindings/iio/temperature/maxim,max31855k.yaml
index 9969bac66aa1..0805ed7e2113 100644
--- a/Documentation/devicetree/bindings/iio/temperature/maxim,max31855k.yaml
+++ b/Documentation/devicetree/bindings/iio/temperature/maxim,max31855k.yaml
@@ -32,7 +32,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
spi-cpha: true
required:
@@ -40,6 +39,7 @@ required:
- reg
allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
- if:
properties:
compatible:
@@ -53,7 +53,7 @@ allOf:
properties:
spi-cpha: false
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/temperature/maxim,max31856.yaml b/Documentation/devicetree/bindings/iio/temperature/maxim,max31856.yaml
index 873b34766676..228a94165487 100644
--- a/Documentation/devicetree/bindings/iio/temperature/maxim,max31856.yaml
+++ b/Documentation/devicetree/bindings/iio/temperature/maxim,max31856.yaml
@@ -19,7 +19,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
spi-cpha: true
thermocouple-type:
@@ -34,7 +33,10 @@ required:
- reg
- spi-cpha
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/temperature/maxim,max31865.yaml b/Documentation/devicetree/bindings/iio/temperature/maxim,max31865.yaml
index aafb33b16549..a2823ed6867b 100644
--- a/Documentation/devicetree/bindings/iio/temperature/maxim,max31865.yaml
+++ b/Documentation/devicetree/bindings/iio/temperature/maxim,max31865.yaml
@@ -25,7 +25,6 @@ properties:
enables 3-wire RTD connection. Else 2-wire or 4-wire RTD connection.
type: boolean
- spi-max-frequency: true
spi-cpha: true
required:
@@ -33,7 +32,10 @@ required:
- reg
- spi-cpha
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90632.yaml b/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90632.yaml
index b547ddcd544a..4a55e7f25ae7 100644
--- a/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90632.yaml
+++ b/Documentation/devicetree/bindings/iio/temperature/melexis,mlx90632.yaml
@@ -35,6 +35,9 @@ properties:
maxItems: 1
description: Default is 0x3a, but can be reprogrammed.
+ vdd-supply:
+ description: provide VDD power to the sensor.
+
required:
- compatible
- reg
@@ -50,6 +53,7 @@ examples:
temp-sensor@3a {
compatible = "melexis,mlx90632";
reg = <0x3a>;
+ vdd-supply = <&ldo4_reg>;
};
};
...
diff --git a/Documentation/devicetree/bindings/input/adc-joystick.yaml b/Documentation/devicetree/bindings/input/adc-joystick.yaml
index 2ee04e03bc22..64d961458ac7 100644
--- a/Documentation/devicetree/bindings/input/adc-joystick.yaml
+++ b/Documentation/devicetree/bindings/input/adc-joystick.yaml
@@ -45,6 +45,7 @@ additionalProperties: false
patternProperties:
"^axis@[0-9a-f]+$":
type: object
+ $ref: input.yaml#
description: >
Represents a joystick axis bound to the given ADC channel.
For each entry in the io-channels list, one axis subnode with a matching
@@ -57,7 +58,6 @@ patternProperties:
description: Index of an io-channels list entry bound to this axis.
linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
description: EV_ABS specific event code generated by the axis.
abs-range:
diff --git a/Documentation/devicetree/bindings/input/adc-keys.txt b/Documentation/devicetree/bindings/input/adc-keys.txt
deleted file mode 100644
index 6c8be6a9ace2..000000000000
--- a/Documentation/devicetree/bindings/input/adc-keys.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-ADC attached resistor ladder buttons
-------------------------------------
-
-Required properties:
- - compatible: "adc-keys"
- - io-channels: Phandle to an ADC channel
- - io-channel-names = "buttons";
- - keyup-threshold-microvolt: Voltage above or equal to which all the keys are
- considered up.
-
-Optional properties:
- - poll-interval: Poll interval time in milliseconds
- - autorepeat: Boolean, Enable auto repeat feature of Linux input
- subsystem.
-
-Each button (key) is represented as a sub-node of "adc-keys":
-
-Required subnode-properties:
- - label: Descriptive name of the key.
- - linux,code: Keycode to emit.
- - press-threshold-microvolt: voltage above or equal to which this key is
- considered pressed.
-
-No two values of press-threshold-microvolt may be the same.
-All values of press-threshold-microvolt must be less than
-keyup-threshold-microvolt.
-
-Example:
-
-#include <dt-bindings/input/input.h>
-
- adc-keys {
- compatible = "adc-keys";
- io-channels = <&lradc 0>;
- io-channel-names = "buttons";
- keyup-threshold-microvolt = <2000000>;
-
- button-up {
- label = "Volume Up";
- linux,code = <KEY_VOLUMEUP>;
- press-threshold-microvolt = <1500000>;
- };
-
- button-down {
- label = "Volume Down";
- linux,code = <KEY_VOLUMEDOWN>;
- press-threshold-microvolt = <1000000>;
- };
-
- button-enter {
- label = "Enter";
- linux,code = <KEY_ENTER>;
- press-threshold-microvolt = <500000>;
- };
- };
-
-+--------------------------------+------------------------+
-| 2.000.000 <= value | no key pressed |
-+--------------------------------+------------------------+
-| 1.500.000 <= value < 2.000.000 | KEY_VOLUMEUP pressed |
-+--------------------------------+------------------------+
-| 1.000.000 <= value < 1.500.000 | KEY_VOLUMEDOWN pressed |
-+--------------------------------+------------------------+
-| 500.000 <= value < 1.000.000 | KEY_ENTER pressed |
-+--------------------------------+------------------------+
-| value < 500.000 | no key pressed |
-+--------------------------------+------------------------+
diff --git a/Documentation/devicetree/bindings/input/adc-keys.yaml b/Documentation/devicetree/bindings/input/adc-keys.yaml
new file mode 100644
index 000000000000..7aa078dead37
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/adc-keys.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/adc-keys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADC attached resistor ladder buttons
+
+maintainers:
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+
+allOf:
+ - $ref: input.yaml#
+
+properties:
+ compatible:
+ const: adc-keys
+
+ io-channels:
+ maxItems: 1
+
+ io-channel-names:
+ const: buttons
+
+ keyup-threshold-microvolt:
+ description:
+ Voltage above or equal to which all the keys are considered up.
+
+ poll-interval: true
+ autorepeat: true
+
+patternProperties:
+ '^button-':
+ type: object
+ $ref: input.yaml#
+ additionalProperties: false
+ description:
+ Each button (key) is represented as a sub-node.
+
+ properties:
+ label: true
+
+ linux,code: true
+
+ press-threshold-microvolt:
+ description:
+ Voltage above or equal to which this key is considered pressed. No
+ two values of press-threshold-microvolt may be the same. All values
+ of press-threshold-microvolt must be less than
+ keyup-threshold-microvolt.
+
+ required:
+ - linux,code
+ - press-threshold-microvolt
+
+required:
+ - compatible
+ - io-channels
+ - io-channel-names
+ - keyup-threshold-microvolt
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/input/input.h>
+ // +--------------------------------+------------------------+
+ // | 2.000.000 <= value | no key pressed |
+ // +--------------------------------+------------------------+
+ // | 1.500.000 <= value < 2.000.000 | KEY_VOLUMEUP pressed |
+ // +--------------------------------+------------------------+
+ // | 1.000.000 <= value < 1.500.000 | KEY_VOLUMEDOWN pressed |
+ // +--------------------------------+------------------------+
+ // | 500.000 <= value < 1.000.000 | KEY_ENTER pressed |
+ // +--------------------------------+------------------------+
+ // | value < 500.000 | no key pressed |
+ // +--------------------------------+------------------------+
+
+ adc-keys {
+ compatible = "adc-keys";
+ io-channels = <&lradc 0>;
+ io-channel-names = "buttons";
+ keyup-threshold-microvolt = <2000000>;
+
+ button-up {
+ label = "Volume Up";
+ linux,code = <KEY_VOLUMEUP>;
+ press-threshold-microvolt = <1500000>;
+ };
+
+ button-down {
+ label = "Volume Down";
+ linux,code = <KEY_VOLUMEDOWN>;
+ press-threshold-microvolt = <1000000>;
+ };
+
+ button-enter {
+ label = "Enter";
+ linux,code = <KEY_ENTER>;
+ press-threshold-microvolt = <500000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml b/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
index 3399fc288afb..5d631f7137e7 100644
--- a/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
+++ b/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 LRADC Device Tree Bindings
+title: Allwinner A10 LRADC
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -44,14 +44,13 @@ properties:
patternProperties:
"^button-[0-9]+$":
type: object
+ $ref: input.yaml#
properties:
label:
$ref: /schemas/types.yaml#/definitions/string
description: Descriptive name of the key
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Keycode to emit
+ linux,code: true
channel:
$ref: /schemas/types.yaml#/definitions/uint32
diff --git a/Documentation/devicetree/bindings/input/ariel-pwrbutton.yaml b/Documentation/devicetree/bindings/input/ariel-pwrbutton.yaml
index b4ad829d7383..442f623bb294 100644
--- a/Documentation/devicetree/bindings/input/ariel-pwrbutton.yaml
+++ b/Documentation/devicetree/bindings/input/ariel-pwrbutton.yaml
@@ -17,6 +17,7 @@ description: |
allOf:
- $ref: input.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml b/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml
index a3a1e5a65306..02e605fac408 100644
--- a/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml
+++ b/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml
@@ -37,10 +37,6 @@ properties:
device is temporarily held in hardware reset prior to initialization if
this property is present.
- azoteq,rf-filt-enable:
- type: boolean
- description: Enables the device's internal RF filter.
-
azoteq,max-counts:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3]
@@ -421,6 +417,7 @@ patternProperties:
patternProperties:
"^event-(prox|touch)$":
type: object
+ $ref: input.yaml#
description:
Represents a proximity or touch event reported by the channel.
@@ -467,14 +464,9 @@ patternProperties:
The IQS7222B does not feature channel-specific timeouts; the time-
out specified for any one channel applies to all channels.
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- Numeric key or switch code associated with the event. Specify
- KEY_RESERVED (0) to opt out of event reporting.
+ linux,code: true
linux,input-type:
- $ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 5]
default: 1
description:
@@ -537,9 +529,8 @@ patternProperties:
azoteq,bottom-speed:
$ref: /schemas/types.yaml#/definitions/uint32
- multipleOf: 4
minimum: 0
- maximum: 1020
+ maximum: 255
description:
Specifies the speed of movement after which coordinate filtering is
linearly reduced.
@@ -575,14 +566,13 @@ patternProperties:
patternProperties:
"^event-(press|tap|(swipe|flick)-(pos|neg))$":
type: object
+ $ref: input.yaml#
description:
Represents a press or gesture (IQS7222A only) event reported by
the slider.
properties:
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Numeric key code associated with the event.
+ linux,code: true
azoteq,gesture-max-ms:
multipleOf: 4
@@ -616,16 +606,15 @@ patternProperties:
azoteq,gpio-select:
$ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
- maxItems: 1
+ maxItems: 3
items:
minimum: 0
- maximum: 0
+ maximum: 2
description: |
- Specifies an individual GPIO mapped to a tap, swipe or flick
- gesture as follows:
+ Specifies one or more GPIO mapped to the event as follows:
0: GPIO0
- 1: GPIO3 (reserved)
- 2: GPIO4 (reserved)
+ 1: GPIO3 (IQS7222C only)
+ 2: GPIO4 (IQS7222C only)
Note that although multiple events can be mapped to a single
GPIO, they must all be of the same type (proximity, touch or
@@ -710,6 +699,14 @@ allOf:
multipleOf: 4
maximum: 1020
+ patternProperties:
+ "^event-(press|tap|(swipe|flick)-(pos|neg))$":
+ properties:
+ azoteq,gpio-select:
+ maxItems: 1
+ items:
+ maximum: 0
+
else:
patternProperties:
"^channel-([0-9]|1[0-9])$":
@@ -726,8 +723,6 @@ allOf:
azoteq,gesture-dist: false
- azoteq,gpio-select: false
-
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/input/da9062-onkey.txt b/Documentation/devicetree/bindings/input/da9062-onkey.txt
index 5f9fbc68e58a..e5eef59a93dc 100644
--- a/Documentation/devicetree/bindings/input/da9062-onkey.txt
+++ b/Documentation/devicetree/bindings/input/da9062-onkey.txt
@@ -2,7 +2,7 @@
This module is part of the DA9061/DA9062/DA9063. For more details about entire
DA9062 and DA9061 chips see Documentation/devicetree/bindings/mfd/da9062.txt
-For DA9063 see Documentation/devicetree/bindings/mfd/da9063.txt
+For DA9063 see Documentation/devicetree/bindings/mfd/dlg,da9063.yaml
This module provides the KEY_POWER event.
diff --git a/Documentation/devicetree/bindings/input/elan,ekth6915.yaml b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
new file mode 100644
index 000000000000..05e6f2df604c
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/elan,ekth6915.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/elan,ekth6915.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Elan eKTH6915 touchscreen controller
+
+maintainers:
+ - Douglas Anderson <dianders@chromium.org>
+
+description:
+ Supports the Elan eKTH6915 touchscreen controller.
+ This touchscreen controller uses the i2c-hid protocol with a reset GPIO.
+
+properties:
+ compatible:
+ items:
+ - const: elan,ekth6915
+
+ reg:
+ const: 0x10
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ description: Reset GPIO; not all touchscreens using eKTH6915 hook this up.
+
+ vcc33-supply:
+ description: The 3.3V supply to the touchscreen.
+
+ vccio-supply:
+ description:
+ The IO supply to the touchscreen. Need not be specified if this is the
+ same as the 3.3V supply.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - vcc33-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ap_ts: touchscreen@10 {
+ compatible = "elan,ekth6915";
+ reg = <0x10>;
+
+ interrupt-parent = <&tlmm>;
+ interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
+
+ reset-gpios = <&tlmm 8 GPIO_ACTIVE_LOW>;
+ vcc33-supply = <&pp3300_ts>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/input/fsl,mpr121-touchkey.yaml b/Documentation/devicetree/bindings/input/fsl,mpr121-touchkey.yaml
index 878464f128dc..5139af287d3e 100644
--- a/Documentation/devicetree/bindings/input/fsl,mpr121-touchkey.yaml
+++ b/Documentation/devicetree/bindings/input/fsl,mpr121-touchkey.yaml
@@ -57,7 +57,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- mpr121@5a {
+ touchkey@5a {
compatible = "fsl,mpr121-touchkey";
reg = <0x5a>;
interrupt-parent = <&gpio1>;
@@ -77,7 +77,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- mpr121@5a {
+ touchkey@5a {
compatible = "fsl,mpr121-touchkey";
reg = <0x5a>;
poll-interval = <20>;
diff --git a/Documentation/devicetree/bindings/input/fsl,scu-key.yaml b/Documentation/devicetree/bindings/input/fsl,scu-key.yaml
new file mode 100644
index 000000000000..e6266d188266
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/fsl,scu-key.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/fsl,scu-key.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - SCU key bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+ - $ref: input.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: fsl,imx8qxp-sc-key
+ - const: fsl,imx-sc-key
+
+ linux,keycodes:
+ maxItems: 1
+
+required:
+ - compatible
+ - linux,keycodes
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/input/input.h>
+
+ keys {
+ compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
+ linux,keycodes = <KEY_POWER>;
+ };
diff --git a/Documentation/devicetree/bindings/input/gpio-keys.yaml b/Documentation/devicetree/bindings/input/gpio-keys.yaml
index 7fe1966ea28a..17ac9dff7972 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys.yaml
+++ b/Documentation/devicetree/bindings/input/gpio-keys.yaml
@@ -15,107 +15,106 @@ properties:
- gpio-keys
- gpio-keys-polled
+ autorepeat: true
+
+ label:
+ description: Name of entire device
+
+ poll-interval: true
+
patternProperties:
- ".*":
- if:
- type: object
- then:
- $ref: input.yaml#
+ "^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switch))$":
+ $ref: input.yaml#
- properties:
- gpios:
- maxItems: 1
+ properties:
+ gpios:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
- interrupts:
- maxItems: 1
+ label:
+ description: Descriptive name of the key.
- label:
- description: Descriptive name of the key.
+ linux,code:
+ description: Key / Axis code to emit.
- linux,code:
- description: Key / Axis code to emit.
- $ref: /schemas/types.yaml#/definitions/uint32
+ linux,input-type:
+ default: 1 # EV_KEY
- linux,input-type:
- description:
- Specify event type this button/key generates. If not specified defaults to
- <1> == EV_KEY.
- $ref: /schemas/types.yaml#/definitions/uint32
+ linux,input-value:
+ description: |
+ If linux,input-type is EV_ABS or EV_REL then this
+ value is sent for events this button generates when pressed.
+ EV_ABS/EV_REL axis will generate an event with a value of 0
+ when all buttons with linux,input-type == type and
+ linux,code == axis are released. This value is interpreted
+ as a signed 32 bit value, e.g. to make a button generate a
+ value of -1 use:
- default: 1
+ linux,input-value = <0xffffffff>; /* -1 */
- linux,input-value:
- description: |
- If linux,input-type is EV_ABS or EV_REL then this
- value is sent for events this button generates when pressed.
- EV_ABS/EV_REL axis will generate an event with a value of 0
- when all buttons with linux,input-type == type and
- linux,code == axis are released. This value is interpreted
- as a signed 32 bit value, e.g. to make a button generate a
- value of -1 use:
+ $ref: /schemas/types.yaml#/definitions/uint32
- linux,input-value = <0xffffffff>; /* -1 */
+ debounce-interval:
+ description:
+ Debouncing interval time in milliseconds. If not specified defaults to 5.
+ $ref: /schemas/types.yaml#/definitions/uint32
- $ref: /schemas/types.yaml#/definitions/uint32
+ default: 5
- debounce-interval:
- description:
- Debouncing interval time in milliseconds. If not specified defaults to 5.
- $ref: /schemas/types.yaml#/definitions/uint32
+ wakeup-source:
+ description: Button can wake-up the system.
- default: 5
+ wakeup-event-action:
+ description: |
+ Specifies whether the key should wake the system when asserted, when
+ deasserted, or both. This property is only valid for keys that wake up the
+ system (e.g., when the "wakeup-source" property is also provided).
- wakeup-source:
- description: Button can wake-up the system.
+ Supported values are defined in linux-event-codes.h:
- wakeup-event-action:
- description: |
- Specifies whether the key should wake the system when asserted, when
- deasserted, or both. This property is only valid for keys that wake up the
- system (e.g., when the "wakeup-source" property is also provided).
+ EV_ACT_ANY - both asserted and deasserted
+ EV_ACT_ASSERTED - asserted
+ EV_ACT_DEASSERTED - deasserted
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
- Supported values are defined in linux-event-codes.h:
+ linux,can-disable:
+ description:
+ Indicates that button is connected to dedicated (not shared) interrupt
+ which can be disabled to suppress events from the button.
+ type: boolean
- EV_ACT_ANY - both asserted and deasserted
- EV_ACT_ASSERTED - asserted
- EV_ACT_DEASSERTED - deasserted
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2]
+ required:
+ - linux,code
- linux,can-disable:
- description:
- Indicates that button is connected to dedicated (not shared) interrupt
- which can be disabled to suppress events from the button.
- type: boolean
+ anyOf:
+ - required:
+ - interrupts
+ - required:
+ - interrupts-extended
+ - required:
+ - gpios
+ dependencies:
+ wakeup-event-action: [ wakeup-source ]
+ linux,input-value: [ gpios ]
+
+ unevaluatedProperties: false
+
+allOf:
+ - $ref: input.yaml#
+ - if:
+ properties:
+ compatible:
+ const: gpio-keys-polled
+ then:
required:
- - linux,code
-
- anyOf:
- - required:
- - interrupts
- - required:
- - gpios
-
- dependencies:
- wakeup-event-action: [ wakeup-source ]
- linux,input-value: [ gpios ]
-
- unevaluatedProperties: false
-
-if:
- properties:
- compatible:
- const: gpio-keys-polled
-then:
- properties:
- poll-interval:
- description:
- Poll interval time in milliseconds
- $ref: /schemas/types.yaml#/definitions/uint32
-
- required:
- - poll-interval
+ - poll-interval
+ else:
+ properties:
+ poll-interval: false
additionalProperties: false
@@ -127,13 +126,13 @@ examples:
compatible = "gpio-keys";
autorepeat;
- up {
+ key-up {
label = "GPIO Key UP";
linux,code = <103>;
gpios = <&gpio1 0 1>;
};
- down {
+ key-down {
label = "GPIO Key DOWN";
linux,code = <108>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
diff --git a/Documentation/devicetree/bindings/input/imx-keypad.yaml b/Documentation/devicetree/bindings/input/imx-keypad.yaml
index f21db81206b4..7514df62b592 100644
--- a/Documentation/devicetree/bindings/input/imx-keypad.yaml
+++ b/Documentation/devicetree/bindings/input/imx-keypad.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/input/imx-keypad.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale i.MX Keypad Port(KPP) device tree bindings
+title: Freescale i.MX Keypad Port(KPP)
maintainers:
- Liu Ying <gnuiyl@gmail.com>
diff --git a/Documentation/devicetree/bindings/input/input.yaml b/Documentation/devicetree/bindings/input/input.yaml
index d41d8743aad4..17512f4347fd 100644
--- a/Documentation/devicetree/bindings/input/input.yaml
+++ b/Documentation/devicetree/bindings/input/input.yaml
@@ -21,7 +21,26 @@ properties:
$ref: /schemas/types.yaml#/definitions/uint32-array
items:
minimum: 0
- maximum: 0xff
+ maximum: 0x2ff
+
+ linux,code:
+ description:
+ Specifies a single numeric keycode value to be used for reporting
+ button/switch events. Specify KEY_RESERVED (0) to opt out of event
+ reporting.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 0x2ff
+
+ linux,input-type:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 1 # EV_KEY
+ - 2 # EV_REL
+ - 3 # EV_ABS
+ - 5 # EV_SW
+ description:
+ Specifies whether the event is to be interpreted as a key, relative,
+ absolute, or switch.
poll-interval:
description: Poll interval time in milliseconds.
@@ -39,4 +58,7 @@ properties:
reset automatically. Device with key pressed reset feature can specify
this property.
+dependencies:
+ linux,input-type: [ "linux,code" ]
+
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/input/iqs269a.yaml b/Documentation/devicetree/bindings/input/iqs269a.yaml
index 9c154e5e1a91..3c430d38594f 100644
--- a/Documentation/devicetree/bindings/input/iqs269a.yaml
+++ b/Documentation/devicetree/bindings/input/iqs269a.yaml
@@ -370,6 +370,7 @@ patternProperties:
patternProperties:
"^event-prox(-alt)?$":
type: object
+ $ref: input.yaml#
description:
Represents a proximity event reported by the channel in response to
a decrease in counts. Node names suffixed with '-alt' instead corre-
@@ -396,14 +397,13 @@ patternProperties:
default: 10
description: Specifies the threshold for the event.
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Numeric key or switch code associated with the event.
+ linux,code: true
additionalProperties: false
"^event-touch(-alt)?$":
type: object
+ $ref: input.yaml#
description: Represents a touch event reported by the channel.
properties:
@@ -421,14 +421,13 @@ patternProperties:
default: 4
description: Specifies the hysteresis for the event.
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Numeric key or switch code associated with the event.
+ linux,code: true
additionalProperties: false
"^event-deep(-alt)?$":
type: object
+ $ref: input.yaml#
description: Represents a deep-touch event reported by the channel.
properties:
@@ -446,9 +445,7 @@ patternProperties:
default: 0
description: Specifies the hysteresis for the event.
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Numeric key or switch code associated with the event.
+ linux,code: true
additionalProperties: false
@@ -475,7 +472,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- iqs269a@44 {
+ touch@44 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/input/iqs626a.yaml b/Documentation/devicetree/bindings/input/iqs626a.yaml
index 0cb736c541c9..7a27502095f3 100644
--- a/Documentation/devicetree/bindings/input/iqs626a.yaml
+++ b/Documentation/devicetree/bindings/input/iqs626a.yaml
@@ -449,6 +449,7 @@ patternProperties:
patternProperties:
"^event-(prox|touch|deep)(-alt)?$":
type: object
+ $ref: input.yaml#
description:
Represents a proximity, touch or deep-touch event reported by the
channel in response to a decrease in counts. Node names suffixed with
@@ -487,21 +488,15 @@ patternProperties:
Specifies the hysteresis for the event (touch and deep-touch
events only).
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Numeric key or switch code associated with the event.
+ linux,code: true
linux,input-type:
- $ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 5]
description:
Specifies whether the event is to be interpreted as a key (1) or
a switch (5). By default, Hall-channel events are interpreted as
switches and all others are interpreted as keys.
- dependencies:
- linux,input-type: ["linux,code"]
-
additionalProperties: false
dependencies:
@@ -511,6 +506,7 @@ patternProperties:
"^trackpad-3x[2-3]$":
type: object
+ $ref: input.yaml#
description:
Represents all channels associated with the trackpad. The channels are
collectively active if the trackpad is defined and inactive otherwise.
@@ -679,7 +675,6 @@ patternProperties:
Specifies the raw count filter strength during low-power mode.
linux,keycodes:
- $ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 6
description: |
@@ -751,7 +746,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- iqs626a@44 {
+ touch@44 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/input/iqs62x-keys.yaml b/Documentation/devicetree/bindings/input/iqs62x-keys.yaml
index 77fe3b545b35..0aa951f0ab92 100644
--- a/Documentation/devicetree/bindings/input/iqs62x-keys.yaml
+++ b/Documentation/devicetree/bindings/input/iqs62x-keys.yaml
@@ -9,6 +9,9 @@ title: Azoteq IQS620A/621/622/624/625 Keys and Switches
maintainers:
- Jeff LaBundy <jeff@labundy.com>
+allOf:
+ - $ref: input.yaml#
+
description: |
The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors
feature a variety of self-capacitive, mutual-inductive and Hall-effect sens-
@@ -30,7 +33,6 @@ properties:
- azoteq,iqs625-keys
linux,keycodes:
- $ref: /schemas/types.yaml#/definitions/uint32-array
minItems: 1
maxItems: 16
description: |
@@ -89,15 +91,14 @@ properties:
patternProperties:
"^hall-switch-(north|south)$":
type: object
+ $ref: input.yaml#
description:
Represents north/south-field Hall-effect sensor touch or proximity
events. Note that north/south-field orientation is reversed on the
IQS620AXzCSR device due to its flip-chip package.
properties:
- linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: Numeric switch code associated with the event.
+ linux,code: true
azoteq,use-prox:
$ref: /schemas/types.yaml#/definitions/flag
diff --git a/Documentation/devicetree/bindings/input/max77650-onkey.yaml b/Documentation/devicetree/bindings/input/max77650-onkey.yaml
index 3a2ad6ec64db..48edc0c8c1dd 100644
--- a/Documentation/devicetree/bindings/input/max77650-onkey.yaml
+++ b/Documentation/devicetree/bindings/input/max77650-onkey.yaml
@@ -16,15 +16,15 @@ description: |
The onkey controller is represented as a sub-node of the PMIC node on
the device tree.
+allOf:
+ - $ref: input.yaml#
+
properties:
compatible:
const: maxim,max77650-onkey
linux,code:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- The key-code to be reported when the key is pressed. Defaults
- to KEY_POWER.
+ default: 116 # KEY_POWER
maxim,onkey-slide:
$ref: /schemas/types.yaml#/definitions/flag
diff --git a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
index 03ebd2665d07..7d1ab25a9c21 100644
--- a/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
+++ b/Documentation/devicetree/bindings/input/mediatek,mt6779-keypad.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/input/mediatek,mt6779-keypad.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek's Keypad Controller device tree bindings
+title: Mediatek's Keypad Controller
maintainers:
- Mattijs Korpershoek <mkorpershoek@baylibre.com>
diff --git a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
index d5d6bced3148..96358b12f9b2 100644
--- a/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
+++ b/Documentation/devicetree/bindings/input/microchip,cap11xx.yaml
@@ -112,7 +112,7 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
- cap1188@28 {
+ touch@28 {
compatible = "microchip,cap1188";
interrupt-parent = <&gpio1>;
interrupts = <0 0>;
diff --git a/Documentation/devicetree/bindings/input/regulator-haptic.yaml b/Documentation/devicetree/bindings/input/regulator-haptic.yaml
index b1ae72f9cd2d..627891e1ef55 100644
--- a/Documentation/devicetree/bindings/input/regulator-haptic.yaml
+++ b/Documentation/devicetree/bindings/input/regulator-haptic.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/input/regulator-haptic.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: Regulator Haptic Device Tree Bindings
+title: Regulator Haptic
maintainers:
- Jaewon Kim <jaewon02.kim@samsung.com>
diff --git a/Documentation/devicetree/bindings/input/sprd,sc27xx-vibrator.yaml b/Documentation/devicetree/bindings/input/sprd,sc27xx-vibrator.yaml
index 5d67fc8ebc18..a401a0bfcbec 100644
--- a/Documentation/devicetree/bindings/input/sprd,sc27xx-vibrator.yaml
+++ b/Documentation/devicetree/bindings/input/sprd,sc27xx-vibrator.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/input/sprd,sc27xx-vibrator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Spreadtrum SC27xx PMIC Vibrator Device Tree Bindings
+title: Spreadtrum SC27xx PMIC Vibrator
maintainers:
- Orson Zhai <orsonzhai@gmail.com>
diff --git a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
index 2e8da7470513..46bc8c028fe6 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/edt-ft5x06.yaml
@@ -85,6 +85,14 @@ properties:
minimum: 0
maximum: 80
+ report-rate-hz:
+ description: |
+ Allows setting the scan rate in Hertz.
+ M06 supports range from 30 to 140 Hz.
+ M12 supports range from 1 to 255 Hz.
+ minimum: 1
+ maximum: 255
+
touchscreen-size-x: true
touchscreen-size-y: true
touchscreen-fuzz-x: true
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
index 5eef5e7d6aae..c9f2c9f578e3 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
@@ -6,7 +6,7 @@ Required properties:
- interrupts : interrupt specification for the ektf2127 interrupt
- power-gpios : GPIO specification for the pin connected to the
ektf2127's wake input. This needs to be driven high
- to take ektf2127 out of it's low power state
+ to take ektf2127 out of its low power state
For additional optional properties see: touchscreen.txt
diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
index 93f2ce3130ae..19ac9da421df 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.yaml
@@ -16,6 +16,7 @@ properties:
compatible:
enum:
- goodix,gt1151
+ - goodix,gt1158
- goodix,gt5663
- goodix,gt5688
- goodix,gt911
diff --git a/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml b/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml
index b8204ed22dd5..f7a5e31c506e 100644
--- a/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml
+++ b/Documentation/devicetree/bindings/interconnect/fsl,imx8m-noc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Generic i.MX bus frequency device
maintainers:
- - Leonard Crestez <leonard.crestez@nxp.com>
+ - Peng Fan <peng.fan@nxp.com>
description: |
The i.MX SoC family has multiple buses for which clock frequency (and
@@ -26,14 +26,16 @@ properties:
oneOf:
- items:
- enum:
- - fsl,imx8mn-nic
- fsl,imx8mm-nic
+ - fsl,imx8mn-nic
+ - fsl,imx8mp-nic
- fsl,imx8mq-nic
- const: fsl,imx8m-nic
- items:
- enum:
- - fsl,imx8mn-noc
- fsl,imx8mm-noc
+ - fsl,imx8mn-noc
+ - fsl,imx8mp-noc
- fsl,imx8mq-noc
- const: fsl,imx8m-noc
- const: fsl,imx8m-nic
@@ -45,7 +47,8 @@ properties:
maxItems: 1
operating-points-v2: true
- opp-table: true
+ opp-table:
+ type: object
fsl,ddrc:
$ref: "/schemas/types.yaml#/definitions/phandle"
diff --git a/Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml b/Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml
new file mode 100644
index 000000000000..58611ba2a0f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/mediatek,cci.yaml
@@ -0,0 +1,142 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/mediatek,cci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Cache Coherent Interconnect (CCI) frequency and voltage scaling
+
+maintainers:
+ - Jia-Wei Chang <jia-wei.chang@mediatek.com>
+ - Johnson Wang <johnson.wang@mediatek.com>
+
+description: |
+ MediaTek Cache Coherent Interconnect (CCI) is a hardware engine used by
+ MT8183 and MT8186 SoCs to scale the frequency and adjust the voltage in
+ hardware. It can also optimize the voltage to reduce the power consumption.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8183-cci
+ - mediatek,mt8186-cci
+
+ clocks:
+ items:
+ - description:
+ The multiplexer for clock input of the bus.
+ - description:
+ A parent of "bus" clock which is used as an intermediate clock source
+ when the original clock source (PLL) is under transition and not
+ stable yet.
+
+ clock-names:
+ items:
+ - const: cci
+ - const: intermediate
+
+ operating-points-v2: true
+ opp-table:
+ type: object
+
+ proc-supply:
+ description:
+ Phandle of the regulator for CCI that provides the supply voltage.
+
+ sram-supply:
+ description:
+ Phandle of the regulator for sram of CCI that provides the supply
+ voltage. When it is present, the implementation needs to do
+ "voltage tracking" to step by step scale up/down Vproc and Vsram to fit
+ SoC specific needs. When absent, the voltage scaling flow is handled by
+ hardware, hence no software "voltage tracking" is needed.
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - operating-points-v2
+ - proc-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ cci: cci {
+ compatible = "mediatek,mt8183-cci";
+ clocks = <&mcucfg CLK_MCU_BUS_SEL>,
+ <&topckgen CLK_TOP_ARMPLL_DIV_PLL1>;
+ clock-names = "cci", "intermediate";
+ operating-points-v2 = <&cci_opp>;
+ proc-supply = <&mt6358_vproc12_reg>;
+ };
+
+ cci_opp: opp-table-cci {
+ compatible = "operating-points-v2";
+ opp-shared;
+ opp2_00: opp-273000000 {
+ opp-hz = /bits/ 64 <273000000>;
+ opp-microvolt = <650000>;
+ };
+ opp2_01: opp-338000000 {
+ opp-hz = /bits/ 64 <338000000>;
+ opp-microvolt = <687500>;
+ };
+ opp2_02: opp-403000000 {
+ opp-hz = /bits/ 64 <403000000>;
+ opp-microvolt = <718750>;
+ };
+ opp2_03: opp-463000000 {
+ opp-hz = /bits/ 64 <463000000>;
+ opp-microvolt = <756250>;
+ };
+ opp2_04: opp-546000000 {
+ opp-hz = /bits/ 64 <546000000>;
+ opp-microvolt = <800000>;
+ };
+ opp2_05: opp-624000000 {
+ opp-hz = /bits/ 64 <624000000>;
+ opp-microvolt = <818750>;
+ };
+ opp2_06: opp-689000000 {
+ opp-hz = /bits/ 64 <689000000>;
+ opp-microvolt = <850000>;
+ };
+ opp2_07: opp-767000000 {
+ opp-hz = /bits/ 64 <767000000>;
+ opp-microvolt = <868750>;
+ };
+ opp2_08: opp-845000000 {
+ opp-hz = /bits/ 64 <845000000>;
+ opp-microvolt = <893750>;
+ };
+ opp2_09: opp-871000000 {
+ opp-hz = /bits/ 64 <871000000>;
+ opp-microvolt = <906250>;
+ };
+ opp2_10: opp-923000000 {
+ opp-hz = /bits/ 64 <923000000>;
+ opp-microvolt = <931250>;
+ };
+ opp2_11: opp-962000000 {
+ opp-hz = /bits/ 64 <962000000>;
+ opp-microvolt = <943750>;
+ };
+ opp2_12: opp-1027000000 {
+ opp-hz = /bits/ 64 <1027000000>;
+ opp-microvolt = <975000>;
+ };
+ opp2_13: opp-1092000000 {
+ opp-hz = /bits/ 64 <1092000000>;
+ opp-microvolt = <1000000>;
+ };
+ opp2_14: opp-1144000000 {
+ opp-hz = /bits/ 64 <1144000000>;
+ opp-microvolt = <1025000>;
+ };
+ opp2_15: opp-1196000000 {
+ opp-hz = /bits/ 64 <1196000000>;
+ opp-microvolt = <1050000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
new file mode 100644
index 000000000000..2684562df4d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8998-bwmon.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,msm8998-bwmon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Interconnect Bandwidth Monitor
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+description: |
+ Bandwidth Monitor measures current throughput on buses between various NoC
+ fabrics and provides information when it crosses configured thresholds.
+
+ Certain SoCs might have more than one Bandwidth Monitors, for example on SDM845::
+ - Measuring the bandwidth between CPUs and Last Level Cache Controller -
+ called just BWMON,
+ - Measuring the bandwidth between Last Level Cache Controller and memory
+ (DDR) - called LLCC BWMON.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - qcom,sc7280-bwmon
+ - qcom,sdm845-bwmon
+ - const: qcom,msm8998-bwmon
+ - const: qcom,msm8998-bwmon # BWMON v4
+ - const: qcom,sc7280-llcc-bwmon # BWMON v5
+ - const: qcom,sdm845-llcc-bwmon # BWMON v5
+
+ interconnects:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ operating-points-v2: true
+ opp-table:
+ type: object
+
+ reg:
+ # BWMON v4 (currently described) and BWMON v5 use one register address
+ # space. BWMON v2 uses two register spaces - not yet described.
+ maxItems: 1
+
+required:
+ - compatible
+ - interconnects
+ - interrupts
+ - operating-points-v2
+ - opp-table
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interconnect/qcom,sdm845.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pmu@1436400 {
+ compatible = "qcom,sdm845-bwmon", "qcom,msm8998-bwmon";
+ reg = <0x01436400 0x600>;
+ interrupts = <GIC_SPI 581 IRQ_TYPE_LEVEL_HIGH>;
+ interconnects = <&gladiator_noc MASTER_APPSS_PROC 3 &mem_noc SLAVE_LLCC 3>;
+
+ operating-points-v2 = <&cpu_bwmon_opp_table>;
+
+ cpu_bwmon_opp_table: opp-table {
+ compatible = "operating-points-v2";
+ opp-0 {
+ opp-peak-kBps = <4800000>;
+ };
+ opp-1 {
+ opp-peak-kBps = <9216000>;
+ };
+ opp-2 {
+ opp-peak-kBps = <15052800>;
+ };
+ opp-3 {
+ opp-peak-kBps = <20889600>;
+ };
+ opp-4 {
+ opp-peak-kBps = <25497600>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
index 8a676fef8c1d..4b37aa88a375 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
@@ -45,7 +45,11 @@ properties:
- qcom,sdm660-snoc
'#interconnect-cells':
- const: 1
+ description: |
+ Value: <1> is one cell in an interconnect specifier for the
+ interconnect node id, <2> requires the interconnect node id and an
+ extra path tag.
+ enum: [ 1, 2 ]
clocks:
minItems: 2
diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml
new file mode 100644
index 000000000000..bbeb0541536b
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,rpmh-common.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,rpmh-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPMh Network-On-Chip Interconnect
+
+maintainers:
+ - Georgi Djakov <djakov@kernel.org>
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ RPMh interconnect providers support system bandwidth requirements through
+ RPMh hardware accelerators known as Bus Clock Manager (BCM). The provider is
+ able to communicate with the BCM through the Resource State Coordinator (RSC)
+ associated with each execution environment. Provider nodes must point to at
+ least one RPMh device child node pertaining to their RSC and each provider
+ can map to multiple RPMh resources.
+
+properties:
+ '#interconnect-cells':
+ enum: [ 1, 2 ]
+
+ qcom,bcm-voters:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ maxItems: 1
+ maxItems: 2
+ description:
+ List of phandles to qcom,bcm-voter nodes that are required by
+ this interconnect to send RPMh commands.
+
+ qcom,bcm-voter-names:
+ maxItems: 2
+ description:
+ Names for each of the qcom,bcm-voters specified.
+
+required:
+ - '#interconnect-cells'
+ - qcom,bcm-voters
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
index 28b3516aa089..a429a1ed1006 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,rpmh.yaml
@@ -18,6 +18,9 @@ description: |
least one RPMh device child node pertaining to their RSC and each provider
can map to multiple RPMh resources.
+allOf:
+ - $ref: qcom,rpmh-common.yaml#
+
properties:
reg:
maxItems: 1
@@ -130,28 +133,13 @@ properties:
- qcom,sm8450-pcie-anoc
- qcom,sm8450-system-noc
- '#interconnect-cells':
- enum: [ 1, 2 ]
-
- qcom,bcm-voters:
- $ref: /schemas/types.yaml#/definitions/phandle-array
- items:
- maxItems: 1
- description: |
- List of phandles to qcom,bcm-voter nodes that are required by
- this interconnect to send RPMh commands.
-
- qcom,bcm-voter-names:
- description: |
- Names for each of the qcom,bcm-voters specified.
+ '#interconnect-cells': true
required:
- compatible
- reg
- - '#interconnect-cells'
- - qcom,bcm-voters
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/interconnect/qcom,sm6350-rpmh.yaml b/Documentation/devicetree/bindings/interconnect/qcom,sm6350-rpmh.yaml
new file mode 100644
index 000000000000..49eb156b08e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/qcom,sm6350-rpmh.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,sm6350-rpmh.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SM6350 RPMh Network-On-Chip Interconnect
+
+maintainers:
+ - Luca Weiss <luca.weiss@fairphone.com>
+
+description:
+ Qualcomm RPMh-based interconnect provider on SM6350.
+
+allOf:
+ - $ref: qcom,rpmh-common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,sm6350-aggre1-noc
+ - qcom,sm6350-aggre2-noc
+ - qcom,sm6350-config-noc
+ - qcom,sm6350-dc-noc
+ - qcom,sm6350-gem-noc
+ - qcom,sm6350-mmss-noc
+ - qcom,sm6350-npu-noc
+ - qcom,sm6350-system-noc
+
+ reg:
+ maxItems: 1
+
+ '#interconnect-cells': true
+
+patternProperties:
+ '^interconnect-[a-z0-9\-]+$':
+ type: object
+ description:
+ The interconnect providers do not have a separate QoS register space,
+ but share parent's space.
+ $ref: qcom,rpmh-common.yaml#
+
+ properties:
+ compatible:
+ enum:
+ - qcom,sm6350-clk-virt
+ - qcom,sm6350-compute-noc
+
+ '#interconnect-cells': true
+
+ required:
+ - compatible
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ config_noc: interconnect@1500000 {
+ compatible = "qcom,sm6350-config-noc";
+ reg = <0x01500000 0x28000>;
+ #interconnect-cells = <2>;
+ qcom,bcm-voters = <&apps_bcm_voter>;
+ };
+
+ system_noc: interconnect@1620000 {
+ compatible = "qcom,sm6350-system-noc";
+ reg = <0x01620000 0x17080>;
+ #interconnect-cells = <2>;
+ qcom,bcm-voters = <&apps_bcm_voter>;
+
+ clk_virt: interconnect-clk-virt {
+ compatible = "qcom,sm6350-clk-virt";
+ #interconnect-cells = <2>;
+ qcom,bcm-voters = <&apps_bcm_voter>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/interconnect/samsung,exynos-bus.yaml b/Documentation/devicetree/bindings/interconnect/samsung,exynos-bus.yaml
new file mode 100644
index 000000000000..ad9ed596dfef
--- /dev/null
+++ b/Documentation/devicetree/bindings/interconnect/samsung,exynos-bus.yaml
@@ -0,0 +1,290 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/samsung,exynos-bus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC Bus and Interconnect
+
+maintainers:
+ - Chanwoo Choi <cw00.choi@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ The Samsung Exynos SoC has many buses for data transfer between DRAM and
+ sub-blocks in SoC. Most Exynos SoCs share the common architecture for buses.
+ Generally, each bus of Exynos SoC includes a source clock and a power line,
+ which are able to change the clock frequency of the bus in runtime. To
+ monitor the usage of each bus in runtime, the driver uses the PPMU (Platform
+ Performance Monitoring Unit), which is able to measure the current load of
+ sub-blocks.
+
+ The Exynos SoC includes the various sub-blocks which have the each AXI bus.
+ The each AXI bus has the owned source clock but, has not the only owned power
+ line. The power line might be shared among one more sub-blocks. So, we can
+ divide into two type of device as the role of each sub-block. There are two
+ type of bus devices as following::
+ - parent bus device
+ - passive bus device
+
+ Basically, parent and passive bus device share the same power line. The
+ parent bus device can only change the voltage of shared power line and the
+ rest bus devices (passive bus device) depend on the decision of the parent
+ bus device. If there are three blocks which share the VDD_xxx power line,
+ Only one block should be parent device and then the rest blocks should depend
+ on the parent device as passive device.
+
+ VDD_xxx |--- A block (parent)
+ |--- B block (passive)
+ |--- C block (passive)
+
+ There are a little different composition among Exynos SoC because each Exynos
+ SoC has different sub-blocks. Therefore, such difference should be specified
+ in devicetree file instead of each device driver. In result, this driver is
+ able to support the bus frequency for all Exynos SoCs.
+
+ Detailed correlation between sub-blocks and power line according
+ to Exynos SoC::
+ - In case of Exynos3250, there are two power line as following::
+ VDD_MIF |--- DMC (Dynamic Memory Controller)
+
+ VDD_INT |--- LEFTBUS (parent device)
+ |--- PERIL
+ |--- MFC
+ |--- G3D
+ |--- RIGHTBUS
+ |--- PERIR
+ |--- FSYS
+ |--- LCD0
+ |--- PERIR
+ |--- ISP
+ |--- CAM
+
+ - MIF bus's frequency/voltage table
+ -----------------------
+ |Lv| Freq | Voltage |
+ -----------------------
+ |L1| 50000 |800000 |
+ |L2| 100000 |800000 |
+ |L3| 134000 |800000 |
+ |L4| 200000 |825000 |
+ |L5| 400000 |875000 |
+ -----------------------
+
+ - INT bus's frequency/voltage table
+ ----------------------------------------------------------
+ |Block|LEFTBUS|RIGHTBUS|MCUISP |ISP |PERIL ||VDD_INT |
+ | name| |LCD0 | | | || |
+ | | |FSYS | | | || |
+ | | |MFC | | | || |
+ ----------------------------------------------------------
+ |Mode |*parent|passive |passive|passive|passive|| |
+ ----------------------------------------------------------
+ |Lv |Frequency ||Voltage |
+ ----------------------------------------------------------
+ |L1 |50000 |50000 |50000 |50000 |50000 ||900000 |
+ |L2 |80000 |80000 |80000 |80000 |80000 ||900000 |
+ |L3 |100000 |100000 |100000 |100000 |100000 ||1000000 |
+ |L4 |134000 |134000 |200000 |200000 | ||1000000 |
+ |L5 |200000 |200000 |400000 |300000 | ||1000000 |
+ ----------------------------------------------------------
+
+ - In case of Exynos4210, there is one power line as following::
+ VDD_INT |--- DMC (parent device, Dynamic Memory Controller)
+ |--- LEFTBUS
+ |--- PERIL
+ |--- MFC(L)
+ |--- G3D
+ |--- TV
+ |--- LCD0
+ |--- RIGHTBUS
+ |--- PERIR
+ |--- MFC(R)
+ |--- CAM
+ |--- FSYS
+ |--- GPS
+ |--- LCD0
+ |--- LCD1
+
+ - In case of Exynos4x12, there are two power line as following::
+ VDD_MIF |--- DMC (Dynamic Memory Controller)
+
+ VDD_INT |--- LEFTBUS (parent device)
+ |--- PERIL
+ |--- MFC(L)
+ |--- G3D
+ |--- TV
+ |--- IMAGE
+ |--- RIGHTBUS
+ |--- PERIR
+ |--- MFC(R)
+ |--- CAM
+ |--- FSYS
+ |--- GPS
+ |--- LCD0
+ |--- ISP
+
+ - In case of Exynos5422, there are two power line as following::
+ VDD_MIF |--- DREX 0 (parent device, DRAM EXpress controller)
+ |--- DREX 1
+
+ VDD_INT |--- NoC_Core (parent device)
+ |--- G2D
+ |--- G3D
+ |--- DISP1
+ |--- NoC_WCORE
+ |--- GSCL
+ |--- MSCL
+ |--- ISP
+ |--- MFC
+ |--- GEN
+ |--- PERIS
+ |--- PERIC
+ |--- FSYS
+ |--- FSYS2
+
+ - In case of Exynos5433, there is VDD_INT power line as following::
+ VDD_INT |--- G2D (parent device)
+ |--- MSCL
+ |--- GSCL
+ |--- JPEG
+ |--- MFC
+ |--- HEVC
+ |--- BUS0
+ |--- BUS1
+ |--- BUS2
+ |--- PERIS (Fixed clock rate)
+ |--- PERIC (Fixed clock rate)
+ |--- FSYS (Fixed clock rate)
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos-bus
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: bus
+
+ devfreq:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Parent bus device. Valid and required only for the passive bus devices.
+
+ devfreq-events:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ minItems: 1
+ maxItems: 4
+ description:
+ Devfreq-event device to monitor the current utilization of buses. Valid
+ and required only for the parent bus devices.
+
+ exynos,saturation-ratio:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Percentage value which is used to calibrate the performance count against
+ total cycle count. Valid only for the parent bus devices.
+
+ '#interconnect-cells':
+ const: 0
+
+ interconnects:
+ minItems: 1
+ maxItems: 2
+
+ operating-points-v2: true
+
+ samsung,data-clock-ratio:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 8
+ description:
+ Ratio of the data throughput in B/s to minimum data clock frequency in
+ Hz.
+
+ vdd-supply:
+ description:
+ Main bus power rail. Valid and required only for the parent bus devices.
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - operating-points-v2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos3250.h>
+
+ bus-dmc {
+ compatible = "samsung,exynos-bus";
+ clocks = <&cmu_dmc CLK_DIV_DMC>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_dmc_opp_table>;
+ devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+ vdd-supply = <&buck1_reg>;
+ };
+
+ ppmu_dmc0: ppmu@106a0000 {
+ compatible = "samsung,exynos-ppmu";
+ reg = <0x106a0000 0x2000>;
+ events {
+ ppmu_dmc0_3: ppmu-event3-dmc0 {
+ event-name = "ppmu-event3-dmc0";
+ };
+ };
+ };
+
+ bus_leftbus: bus-leftbus {
+ compatible = "samsung,exynos-bus";
+ clocks = <&cmu CLK_DIV_GDL>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+ vdd-supply = <&buck3_reg>;
+ };
+
+ bus-rightbus {
+ compatible = "samsung,exynos-bus";
+ clocks = <&cmu CLK_DIV_GDR>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ devfreq = <&bus_leftbus>;
+ };
+
+ - |
+ dmc: bus-dmc {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_DMC>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_dmc_opp_table>;
+ samsung,data-clock-ratio = <4>;
+ #interconnect-cells = <0>;
+ devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
+ vdd-supply = <&buck1_reg>;
+ };
+
+ leftbus: bus-leftbus {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_GDL>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_leftbus_opp_table>;
+ interconnects = <&dmc>;
+ #interconnect-cells = <0>;
+ devfreq-events = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>;
+ vdd-supply = <&buck3_reg>;
+ };
+
+ display: bus-display {
+ compatible = "samsung,exynos-bus";
+ clocks = <&clock CLK_DIV_ACLK_266>;
+ clock-names = "bus";
+ operating-points-v2 = <&bus_display_opp_table>;
+ interconnects = <&leftbus &dmc>;
+ #interconnect-cells = <0>;
+ devfreq = <&leftbus>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-a10-ic.yaml b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-a10-ic.yaml
index 953d875b5e74..a713633be733 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-a10-ic.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-a10-ic.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/interrupt-controller/allwinner,sun4i-a10-ic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Interrupt Controller Device Tree Bindings
+title: Allwinner A10 Interrupt Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml
index 4db24b8a9ffe..4fa6fd400eef 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/interrupt-controller/allwinner,sun6i-a31-r-intc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 NMI/Wakeup Interrupt Controller Device Tree Bindings
+title: Allwinner A31 NMI/Wakeup Interrupt Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml
index 7fc9ad5ef38c..83603180d8d9 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/interrupt-controller/allwinner,sun7i-a20-sc-nmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A20 Non-Maskable Interrupt Controller Device Tree Bindings
+title: Allwinner A20 Non-Maskable Interrupt Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml b/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
index 85c85b694217..e18107eafe7c 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
@@ -96,7 +96,7 @@ properties:
Documentation/devicetree/bindings/arm/cpus.yaml).
required:
- - fiq-index
+ - apple,fiq-index
- cpus
required:
diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
index 3912a89162f0..9f7d3e11aacb 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
@@ -170,7 +170,6 @@ dependencies:
required:
- compatible
- - interrupts
- reg
patternProperties:
diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml
index 62219a5c21c5..220256907461 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic.yaml
@@ -64,9 +64,9 @@ properties:
interrupt-controller: true
"#address-cells":
- enum: [ 0, 1 ]
+ enum: [ 0, 1, 2 ]
"#size-cells":
- const: 1
+ enum: [ 1, 2 ]
"#interrupt-cells":
const: 3
diff --git a/Documentation/devicetree/bindings/interrupt-controller/idt,32434-pic.yaml b/Documentation/devicetree/bindings/interrupt-controller/idt,32434-pic.yaml
index 160ff4b07cac..afb3dd80b643 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/idt,32434-pic.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/idt,32434-pic.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/interrupt-controller/idt,32434-pic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: IDT 79RC32434 Interrupt Controller Device Tree Bindings
+title: IDT 79RC32434 Interrupt Controller
maintainers:
- Thomas Bogendoerfer <tsbogend@alpha.franken.de>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/mti,cpu-interrupt-controller.yaml b/Documentation/devicetree/bindings/interrupt-controller/mti,cpu-interrupt-controller.yaml
new file mode 100644
index 000000000000..46a1f5f54b74
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/mti,cpu-interrupt-controller.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/mti,cpu-interrupt-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MIPS CPU Interrupt Controller
+
+description: >
+ On MIPS the mips_cpu_irq_of_init() helper can be used to initialize the 8 CPU
+ IRQs from a devicetree file and create a irq_domain for IRQ controller.
+
+ With the irq_domain in place we can describe how the 8 IRQs are wired to the
+ platforms internal interrupt controller cascade.
+
+maintainers:
+ - Thomas Bogendoerfer <tsbogend@alpha.franken.de>
+
+properties:
+ compatible:
+ const: mti,cpu-interrupt-controller
+
+ '#interrupt-cells':
+ const: 1
+
+ '#address-cells':
+ const: 0
+
+ interrupt-controller: true
+
+additionalProperties: false
+
+required:
+ - compatible
+ - '#interrupt-cells'
+ - '#address-cells'
+ - interrupt-controller
+
+examples:
+ - |
+ interrupt-controller {
+ compatible = "mti,cpu-interrupt-controller";
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt
deleted file mode 100644
index 159a423e5586..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.txt
+++ /dev/null
@@ -1,78 +0,0 @@
-PDC interrupt controller
-
-Qualcomm Technologies Inc. SoCs based on the RPM Hardened architecture have a
-Power Domain Controller (PDC) that is on always-on domain. In addition to
-providing power control for the power domains, the hardware also has an
-interrupt controller that can be used to help detect edge low interrupts as
-well detect interrupts when the GIC is non-operational.
-
-GIC is parent interrupt controller at the highest level. Platform interrupt
-controller PDC is next in hierarchy, followed by others. Drivers requiring
-wakeup capabilities of their device interrupts routed through the PDC, must
-specify PDC as their interrupt controller and request the PDC port associated
-with the GIC interrupt. See example below.
-
-Properties:
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: Should contain "qcom,<soc>-pdc" and "qcom,pdc"
- - "qcom,sc7180-pdc": For SC7180
- - "qcom,sc7280-pdc": For SC7280
- - "qcom,sdm845-pdc": For SDM845
- - "qcom,sm6350-pdc": For SM6350
- - "qcom,sm8150-pdc": For SM8150
- - "qcom,sm8250-pdc": For SM8250
- - "qcom,sm8350-pdc": For SM8350
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: Specifies the base physical address for PDC hardware.
-
-- interrupt-cells:
- Usage: required
- Value type: <u32>
- Definition: Specifies the number of cells needed to encode an interrupt
- source.
- Must be 2.
- The first element of the tuple is the PDC pin for the
- interrupt.
- The second element is the trigger type.
-
-- interrupt-controller:
- Usage: required
- Value type: <bool>
- Definition: Identifies the node as an interrupt controller.
-
-- qcom,pdc-ranges:
- Usage: required
- Value type: <u32 array>
- Definition: Specifies the PDC pin offset and the number of PDC ports.
- The tuples indicates the valid mapping of valid PDC ports
- and their hwirq mapping.
- The first element of the tuple is the starting PDC port.
- The second element is the GIC hwirq number for the PDC port.
- The third element is the number of interrupts in sequence.
-
-Example:
-
- pdc: interrupt-controller@b220000 {
- compatible = "qcom,sdm845-pdc";
- reg = <0xb220000 0x30000>;
- qcom,pdc-ranges = <0 512 94>, <94 641 15>, <115 662 7>;
- #interrupt-cells = <2>;
- interrupt-parent = <&intc>;
- interrupt-controller;
- };
-
-DT binding of a device that wants to use the GIC SPI 514 as a wakeup
-interrupt, must do -
-
- wake-device {
- interrupts-extended = <&pdc 2 IRQ_TYPE_LEVEL_HIGH>;
- };
-
-In this case interrupt 514 would be mapped to port 2 on the PDC as defined by
-the qcom,pdc-ranges property.
diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml
new file mode 100644
index 000000000000..b6f56cf5fbe3
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/qcom,pdc.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/qcom,pdc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PDC interrupt controller
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description: |
+ Qualcomm Technologies Inc. SoCs based on the RPM Hardened architecture have a
+ Power Domain Controller (PDC) that is on always-on domain. In addition to
+ providing power control for the power domains, the hardware also has an
+ interrupt controller that can be used to help detect edge low interrupts as
+ well detect interrupts when the GIC is non-operational.
+
+ GIC is parent interrupt controller at the highest level. Platform interrupt
+ controller PDC is next in hierarchy, followed by others. Drivers requiring
+ wakeup capabilities of their device interrupts routed through the PDC, must
+ specify PDC as their interrupt controller and request the PDC port associated
+ with the GIC interrupt. See example below.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,sc7180-pdc
+ - qcom,sc7280-pdc
+ - qcom,sdm845-pdc
+ - qcom,sm6350-pdc
+ - qcom,sm8150-pdc
+ - qcom,sm8250-pdc
+ - qcom,sm8350-pdc
+ - const: qcom,pdc
+
+ reg:
+ minItems: 1
+ items:
+ - description: PDC base register region
+ - description: Edge or Level config register for SPI interrupts
+
+ '#interrupt-cells':
+ const: 2
+
+ interrupt-controller: true
+
+ qcom,pdc-ranges:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ minItems: 1
+ maxItems: 32 # no hard limit
+ items:
+ items:
+ - description: starting PDC port
+ - description: GIC hwirq number for the PDC port
+ - description: number of interrupts in sequence
+ description: |
+ Specifies the PDC pin offset and the number of PDC ports.
+ The tuples indicates the valid mapping of valid PDC ports
+ and their hwirq mapping.
+
+required:
+ - compatible
+ - reg
+ - '#interrupt-cells'
+ - interrupt-controller
+ - qcom,pdc-ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ pdc: interrupt-controller@b220000 {
+ compatible = "qcom,sdm845-pdc", "qcom,pdc";
+ reg = <0xb220000 0x30000>;
+ qcom,pdc-ranges = <0 512 94>, <94 641 15>, <115 662 7>;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&intc>;
+ interrupt-controller;
+ };
+
+ wake-device {
+ interrupts-extended = <&pdc 2 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt
deleted file mode 100644
index e0062aebf025..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-RDA Micro RDA8810PL Interrupt Controller
-
-The interrupt controller in RDA8810PL SoC is a custom interrupt controller
-which supports up to 32 interrupts.
-
-Required properties:
-
-- compatible: Should be "rda,8810pl-intc".
-- reg: Specifies base physical address of the registers set.
-- interrupt-controller: Identifies the node as an interrupt controller.
-- #interrupt-cells: Specifies the number of cells needed to encode an
- interrupt source. The value shall be 2.
-
-The interrupt sources are as follows:
-
-ID Name
-------------
-0: PULSE_DUMMY
-1: I2C
-2: NAND_NFSC
-3: SDMMC1
-4: SDMMC2
-5: SDMMC3
-6: SPI1
-7: SPI2
-8: SPI3
-9: UART1
-10: UART2
-11: UART3
-12: GPIO1
-13: GPIO2
-14: GPIO3
-15: KEYPAD
-16: TIMER
-17: TIMEROS
-18: COMREG0
-19: COMREG1
-20: USB
-21: DMC
-22: DMA
-23: CAMERA
-24: GOUDA
-25: GPU
-26: VPU_JPG
-27: VPU_HOST
-28: VOC
-29: AUIFC0
-30: AUIFC1
-31: L2CC
-
-Example:
- apb@20800000 {
- compatible = "simple-bus";
- ...
- intc: interrupt-controller@0 {
- compatible = "rda,8810pl-intc";
- reg = <0x0 0x1000>;
- interrupt-controller;
- #interrupt-cells = <2>;
- };
- };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.yaml
new file mode 100644
index 000000000000..96d6285d0087
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/rda,8810pl-intc.yaml
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/rda,8810pl-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: RDA Micro RDA8810PL interrupt controller
+
+maintainers:
+ - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ compatible:
+ const: rda,8810pl-intc
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ intc: interrupt-controller@0 {
+ compatible = "rda,8810pl-intc";
+ reg = <0x0 0x1000>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
new file mode 100644
index 000000000000..33b90e975e33
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/renesas,rzg2l-irqc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/G2L (and alike SoC's) Interrupt Controller (IA55)
+
+maintainers:
+ - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+ - Geert Uytterhoeven <geert+renesas@glider.be>
+
+description: |
+ IA55 performs various interrupt controls including synchronization for the external
+ interrupts of NMI, IRQ, and GPIOINT and the interrupts of the built-in peripheral
+ interrupts output by each IP. And it notifies the interrupt to the GIC
+ - IRQ sense select for 8 external interrupts, mapped to 8 GIC SPI interrupts
+ - GPIO pins used as external interrupt input pins, mapped to 32 GIC SPI interrupts
+ - NMI edge select (NMI is not treated as NMI exception and supports fall edge and
+ stand-up edge detection interrupts)
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,r9a07g044-irqc # RZ/G2{L,LC}
+ - renesas,r9a07g054-irqc # RZ/V2L
+ - const: renesas,rzg2l-irqc
+
+ '#interrupt-cells':
+ description: The first cell should contain external interrupt number (IRQ0-7) and the
+ second cell is used to specify the flag.
+ const: 2
+
+ '#address-cells':
+ const: 0
+
+ interrupt-controller: true
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 41
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: clk
+ - const: pclk
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - '#interrupt-cells'
+ - '#address-cells'
+ - interrupt-controller
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - power-domains
+ - resets
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/r9a07g044-cpg.h>
+
+ irqc: interrupt-controller@110a0000 {
+ compatible = "renesas,r9a07g044-irqc", "renesas,rzg2l-irqc";
+ reg = <0x110a0000 0x10000>;
+ #interrupt-cells = <2>;
+ #address-cells = <0>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 444 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 445 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 448 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 449 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 450 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 451 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 452 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 453 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 454 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 455 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 456 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 457 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 458 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 459 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 460 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 461 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 462 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 463 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 464 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 465 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 466 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 467 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 468 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 469 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 470 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 471 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 472 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 473 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 474 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 475 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD R9A07G044_IA55_CLK>,
+ <&cpg CPG_MOD R9A07G044_IA55_PCLK>;
+ clock-names = "clk", "pclk";
+ power-domains = <&cpg>;
+ resets = <&cpg R9A07G044_IA55_RESETN>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
index 27092c6a86c4..92e0f8c3eff2 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
@@ -26,9 +26,14 @@ description:
with priority below this threshold will not cause the PLIC to raise its
interrupt line leading to the context.
- While the PLIC supports both edge-triggered and level-triggered interrupts,
- interrupt handlers are oblivious to this distinction and therefore it is not
- specified in the PLIC device-tree binding.
+ The PLIC supports both edge-triggered and level-triggered interrupts. For
+ edge-triggered interrupts, the RISC-V PLIC spec allows two responses to edges
+ seen while an interrupt handler is active; the PLIC may either queue them or
+ ignore them. In the first case, handlers are oblivious to the trigger type, so
+ it is not included in the interrupt specifier. In the second case, software
+ needs to know the trigger type, so it can reorder the interrupt flow to avoid
+ missing interrupts. This special handling is needed by at least the Renesas
+ RZ/Five SoC (AX45MP AndesCore with a NCEPLIC100) and the T-HEAD C900 PLIC.
While the RISC-V ISA doesn't specify a memory layout for the PLIC, the
"sifive,plic-1.0.0" device is a concrete implementation of the PLIC that
@@ -49,6 +54,10 @@ properties:
oneOf:
- items:
- enum:
+ - renesas,r9a07g043-plic
+ - const: andestech,nceplic100
+ - items:
+ - enum:
- sifive,fu540-c000-plic
- starfive,jh7100-plic
- canaan,k210-plic
@@ -64,8 +73,7 @@ properties:
'#address-cells':
const: 0
- '#interrupt-cells':
- const: 1
+ '#interrupt-cells': true
interrupt-controller: true
@@ -82,6 +90,12 @@ properties:
description:
Specifies how many external interrupts are supported by this controller.
+ clocks: true
+
+ power-domains: true
+
+ resets: true
+
required:
- compatible
- '#address-cells'
@@ -91,6 +105,47 @@ required:
- interrupts-extended
- riscv,ndev
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - andestech,nceplic100
+ - thead,c900-plic
+
+ then:
+ properties:
+ '#interrupt-cells':
+ const: 2
+
+ else:
+ properties:
+ '#interrupt-cells':
+ const: 1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a07g043-plic
+
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ required:
+ - clocks
+ - power-domains
+ - resets
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
index e44daa09b137..00c10a8258f1 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/interrupt-controller/st,stm32-exti.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: STM32 External Interrupt Controller Device Tree Bindings
+title: STM32 External Interrupt Controller
maintainers:
- Alexandre Torgue <alexandre.torgue@foss.st.com>
diff --git a/Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
new file mode 100644
index 000000000000..bd0021dbab0b
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/sunplus,sp7021-intc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/sunplus,sp7021-intc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sunplus SP7021 SoC Interrupt Controller
+
+maintainers:
+ - Qin Jian <qinjian@cqplus1.com>
+
+properties:
+ compatible:
+ items:
+ - const: sunplus,sp7021-intc
+
+ reg:
+ maxItems: 2
+ description:
+ Specifies base physical address(s) and size of the controller regs.
+ The 1st region include type/polarity/priority/mask regs.
+ The 2nd region include clear/masked_ext0/masked_ext1/group regs.
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+ description:
+ The first cell is the IRQ number, the second cell is the trigger
+ type as defined in interrupt.txt in this directory.
+
+ interrupts:
+ maxItems: 2
+ description:
+ EXT_INT0 & EXT_INT1, 2 interrupts references to primary interrupt
+ controller.
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - "#interrupt-cells"
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ intc: interrupt-controller@9c000780 {
+ compatible = "sunplus,sp7021-intc";
+ reg = <0x9c000780 0x80>, <0x9c000a80 0x80>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>, /* EXT_INT0 */
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>; /* EXT_INT1 */
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
index 5e125cf2a88b..e20016f12017 100644
--- a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/iommu/allwinner,sun50i-h6-iommu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner H6 IOMMU Device Tree Bindings
+title: Allwinner H6 IOMMU
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
index c57a53d87e4e..75fcf4cb52d9 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu-v3.yaml
@@ -39,16 +39,11 @@ properties:
any others.
- minItems: 1
items:
- - enum:
- - eventq # Event Queue not empty
- - gerror # Global Error activated
- - const: gerror
- - enum:
- - cmdq-sync # CMD_SYNC complete
- - priq # PRI Queue not empty
- - enum:
- - cmdq-sync
- - priq
+ enum:
+ - eventq # Event Queue not empty
+ - gerror # Global Error activated
+ - cmdq-sync # CMD_SYNC complete
+ - priq # PRI Queue not empty
'#iommu-cells':
const: 1
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
index 76fc2c0f4d54..9066e6df1ba1 100644
--- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
+++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml
@@ -42,6 +42,7 @@ properties:
- qcom,sdx55-smmu-500
- qcom,sdx65-smmu-500
- qcom,sm6350-smmu-500
+ - qcom,sm6375-smmu-500
- qcom,sm8150-smmu-500
- qcom,sm8250-smmu-500
- qcom,sm8350-smmu-500
diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index 2ae3bbad7f1a..839e3be0bf3c 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -73,6 +73,7 @@ properties:
- mediatek,mt2701-m4u # generation one
- mediatek,mt2712-m4u # generation two
- mediatek,mt6779-m4u # generation two
+ - mediatek,mt6795-m4u # generation two
- mediatek,mt8167-m4u # generation two
- mediatek,mt8173-m4u # generation two
- mediatek,mt8183-m4u # generation two
@@ -101,6 +102,10 @@ properties:
items:
- const: bclk
+ mediatek,infracfg:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle to the mediatek infracfg syscon
+
mediatek,larbs:
$ref: /schemas/types.yaml#/definitions/phandle-array
minItems: 1
@@ -120,6 +125,7 @@ properties:
dt-binding/memory/mt2701-larb-port.h for mt2701 and mt7623,
dt-binding/memory/mt2712-larb-port.h for mt2712,
dt-binding/memory/mt6779-larb-port.h for mt6779,
+ dt-binding/memory/mt6795-larb-port.h for mt6795,
dt-binding/memory/mt8167-larb-port.h for mt8167,
dt-binding/memory/mt8173-larb-port.h for mt8173,
dt-binding/memory/mt8183-larb-port.h for mt8183,
@@ -144,6 +150,7 @@ allOf:
enum:
- mediatek,mt2701-m4u
- mediatek,mt2712-m4u
+ - mediatek,mt6795-m4u
- mediatek,mt8173-m4u
- mediatek,mt8186-iommu-mm
- mediatek,mt8192-m4u
@@ -167,6 +174,19 @@ allOf:
required:
- power-domains
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mt2712-m4u
+ - mediatek,mt6795-m4u
+ - mediatek,mt8173-m4u
+
+ then:
+ required:
+ - mediatek,infracfg
+
- if: # The IOMMUs don't have larbs.
not:
properties:
@@ -191,6 +211,7 @@ examples:
interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_LOW>;
clocks = <&infracfg CLK_INFRA_M4U>;
clock-names = "bclk";
+ mediatek,infracfg = <&infracfg>;
mediatek,larbs = <&larb0>, <&larb1>, <&larb2>,
<&larb3>, <&larb4>, <&larb5>;
#iommu-cells = <1>;
diff --git a/Documentation/devicetree/bindings/leds/backlight/common.yaml b/Documentation/devicetree/bindings/leds/backlight/common.yaml
index 702ba350d869..3b60afbab68b 100644
--- a/Documentation/devicetree/bindings/leds/backlight/common.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/common.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Common backlight properties
maintainers:
- - Lee Jones <lee.jones@linaro.org>
+ - Lee Jones <lee@kernel.org>
- Daniel Thompson <daniel.thompson@linaro.org>
- Jingoo Han <jingoohan1@gmail.com>
diff --git a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
index 75cc569b9c55..3300451fcfd5 100644
--- a/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/gpio-backlight.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: gpio-backlight bindings
maintainers:
- - Lee Jones <lee.jones@linaro.org>
+ - Lee Jones <lee@kernel.org>
- Daniel Thompson <daniel.thompson@linaro.org>
- Jingoo Han <jingoohan1@gmail.com>
diff --git a/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml
index f5822f4ea667..0793d0adc4ec 100644
--- a/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/led-backlight.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: led-backlight bindings
maintainers:
- - Lee Jones <lee.jones@linaro.org>
+ - Lee Jones <lee@kernel.org>
- Daniel Thompson <daniel.thompson@linaro.org>
- Jingoo Han <jingoohan1@gmail.com>
diff --git a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
index 08fe5cf8614a..3c9b4054ed9a 100644
--- a/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/lm3630a-backlight.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI LM3630A High-Efficiency Dual-String White LED
maintainers:
- - Lee Jones <lee.jones@linaro.org>
+ - Lee Jones <lee@kernel.org>
- Daniel Thompson <daniel.thompson@linaro.org>
- Jingoo Han <jingoohan1@gmail.com>
diff --git a/Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml
new file mode 100644
index 000000000000..5533b6562d92
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/mediatek,mt6370-backlight.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/backlight/mediatek,mt6370-backlight.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT6370 Backlight
+
+maintainers:
+ - ChiaEn Wu <chiaen_wu@richtek.com>
+
+description: |
+ This module is part of the MT6370 MFD device.
+ The MT6370 Backlight WLED driver supports up to a 29V output voltage for
+ 4 channels of 8 series WLEDs. Each channel supports up to 30mA of current
+ capability with 2048 current steps (11 bits, only for MT6370/MT6371) or
+ 16384 current steps (14 bits, only for MT6372) in exponential or linear
+ mapping curves.
+
+allOf:
+ - $ref: common.yaml#
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt6370-backlight
+ - mediatek,mt6372-backlight
+
+ default-brightness:
+ minimum: 0
+
+ max-brightness:
+ minimum: 0
+
+ enable-gpios:
+ description: External backlight 'enable' pin
+ maxItems: 1
+
+ mediatek,bled-pwm-enable:
+ description: |
+ Enable external PWM input for backlight dimming
+ type: boolean
+
+ mediatek,bled-pwm-hys-enable:
+ description: |
+ Enable the backlight input-hysteresis for PWM mode
+ type: boolean
+
+ mediatek,bled-pwm-hys-input-th-steps:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ enum: [1, 4, 16, 64]
+ description: |
+ The selection of the upper and lower bounds threshold of backlight
+ PWM resolution. If we choose selection 64, the variation of PWM
+ resolution needs more than 64 steps.
+
+ mediatek,bled-ovp-shutdown:
+ description: |
+ Enable the backlight shutdown when OVP level triggered
+ type: boolean
+
+ mediatek,bled-ovp-microvolt:
+ enum: [17000000, 21000000, 25000000, 29000000]
+ description: |
+ Backlight OVP level selection.
+
+ mediatek,bled-ocp-shutdown:
+ description: |
+ Enable the backlight shutdown when OCP level triggerred.
+ type: boolean
+
+ mediatek,bled-ocp-microamp:
+ enum: [900000, 1200000, 1500000, 1800000]
+ description: |
+ Backlight OC level selection.
+
+ mediatek,bled-exponential-mode-enable:
+ description: |
+ Enable the exponential mode of backlight brightness. If this property
+ is not enabled, the default is to use linear mode.
+ type: boolean
+
+ mediatek,bled-channel-use:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ Backlight LED channel to be used.
+ Each bit mapping to:
+ - 0: CH4
+ - 1: CH3
+ - 2: CH2
+ - 3: CH1
+ minimum: 1
+ maximum: 15
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt6372-backlight
+
+then:
+ properties:
+ default-brightness:
+ maximum: 16384
+
+ max-brightness:
+ maximum: 16384
+
+else:
+ properties:
+ default-brightness:
+ maximum: 2048
+
+ max-brightness:
+ maximum: 2048
+
+required:
+ - compatible
+ - mediatek,bled-channel-use
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml
index fcb8429f3088..78fbe20a1758 100644
--- a/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/pwm-backlight.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: pwm-backlight bindings
maintainers:
- - Lee Jones <lee.jones@linaro.org>
+ - Lee Jones <lee@kernel.org>
- Daniel Thompson <daniel.thompson@linaro.org>
- Jingoo Han <jingoohan1@gmail.com>
diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
index 5d66c3e4def5..4c15693f7a01 100644
--- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.yaml
@@ -26,7 +26,8 @@ properties:
- qcom,pm8150l-wled
reg:
- maxItems: 1
+ minItems: 1
+ maxItems: 2
default-brightness:
description: |
@@ -171,6 +172,9 @@ allOf:
then:
properties:
+ reg:
+ maxItems: 1
+
qcom,current-boost-limit:
enum: [ 105, 385, 525, 805, 980, 1260, 1400, 1680 ]
default: 805
@@ -189,6 +193,9 @@ allOf:
else:
properties:
+ reg:
+ minItems: 2
+
qcom,current-boost-limit:
enum: [ 105, 280, 450, 620, 970, 1150, 1300, 1500 ]
default: 970
diff --git a/Documentation/devicetree/bindings/leds/backlight/richtek,rt4831-backlight.yaml b/Documentation/devicetree/bindings/leds/backlight/richtek,rt4831-backlight.yaml
index e0ac68694b63..99e9e138fa92 100644
--- a/Documentation/devicetree/bindings/leds/backlight/richtek,rt4831-backlight.yaml
+++ b/Documentation/devicetree/bindings/leds/backlight/richtek,rt4831-backlight.yaml
@@ -47,6 +47,11 @@ properties:
minimum: 0
maximum: 3
+ richtek,bled-ocp-microamp:
+ description: |
+ Backlight over current protection level.
+ enum: [900000, 1200000, 1500000, 1800000]
+
richtek,channel-use:
description: |
Backlight LED channel to be used.
diff --git a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
index 9362b1ef9e88..14bebe1ad8f8 100644
--- a/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
+++ b/Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml
@@ -33,6 +33,8 @@ patternProperties:
"^multi-led@[0-9a-b]$":
type: object
$ref: leds-class-multicolor.yaml#
+ unevaluatedProperties: false
+
description:
This node represents one of the RGB LED devices on Turris Omnia.
No subnodes need to be added for subchannels since this controller only
diff --git a/Documentation/devicetree/bindings/leds/issi,is31fl319x.yaml b/Documentation/devicetree/bindings/leds/issi,is31fl319x.yaml
new file mode 100644
index 000000000000..940333f2d69c
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/issi,is31fl319x.yaml
@@ -0,0 +1,193 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/issi,is31fl319x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ISSI LED controllers bindings for IS31FL319{0,1,3,6,9}
+
+maintainers:
+ - Vincent Knecht <vincent.knecht@mailoo.org>
+
+description: |
+ The IS31FL319X are LED controllers with I2C interface.
+ Previously known as Si-En SN319{0,1,3,6,9}.
+
+ For more product information please see the links below:
+ https://lumissil.com/assets/pdf/core/IS31FL3190_DS.pdf
+ https://lumissil.com/assets/pdf/core/IS31FL3191_DS.pdf
+ https://lumissil.com/assets/pdf/core/IS31FL3193_DS.pdf
+ https://lumissil.com/assets/pdf/core/IS31FL3196_DS.pdf
+ https://lumissil.com/assets/pdf/core/IS31FL3199_DS.pdf
+
+properties:
+ compatible:
+ enum:
+ - issi,is31fl3190
+ - issi,is31fl3191
+ - issi,is31fl3193
+ - issi,is31fl3196
+ - issi,is31fl3199
+ - si-en,sn3190
+ - si-en,sn3191
+ - si-en,sn3193
+ - si-en,sn3196
+ - si-en,sn3199
+
+ reg:
+ maxItems: 1
+
+ shutdown-gpios:
+ maxItems: 1
+ description: GPIO attached to the SDB pin.
+
+ audio-gain-db:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0
+ description: Audio gain selection for external analog modulation input.
+ enum: [0, 3, 6, 9, 12, 15, 18, 21]
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^led@[1-9]$":
+ type: object
+ $ref: common.yaml#
+
+ properties:
+ reg:
+ description: Index of the LED.
+ minimum: 1
+ maximum: 9
+
+ led-max-microamp:
+ description:
+ Note that a driver will take the lowest of all LED limits
+ since the chip has a single global setting. The lowest value
+ will be chosen due to the PWM specificity, where lower
+ brightness is achieved by reducing the duty-cycle of pulses
+ and not the current, which will always have its peak value
+ equal to led-max-microamp.
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - issi,is31fl3190
+ - issi,is31fl3191
+ - issi,is31fl3193
+ - si-en,sn3190
+ - si-en,sn3191
+ - si-en,sn3193
+ then:
+ properties:
+ reg:
+ enum: [0x68, 0x69, 0x6a, 0x6b]
+
+ audio-gain-db: false
+
+ patternProperties:
+ "^led@[1-9]$":
+ properties:
+ led-max-microamp:
+ default: 42000
+ enum: [5000, 10000, 17500, 30000, 42000]
+ else:
+ properties:
+ reg:
+ enum: [0x64, 0x65, 0x66, 0x67]
+
+ patternProperties:
+ "^led@[1-9]$":
+ properties:
+ led-max-microamp:
+ default: 20000
+ enum: [5000, 10000, 15000, 20000, 25000, 30000, 35000, 40000]
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - issi,is31fl3190
+ - issi,is31fl3191
+ - si-en,sn3190
+ - si-en,sn3191
+ then:
+ patternProperties:
+ "^led@[1-9]$":
+ properties:
+ reg:
+ maximum: 1
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - issi,is31fl3193
+ - si-en,sn3193
+ then:
+ patternProperties:
+ "^led@[1-9]$":
+ properties:
+ reg:
+ maximum: 3
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - issi,is31fl3196
+ - si-en,sn3196
+ then:
+ patternProperties:
+ "^led@[1-9]$":
+ properties:
+ reg:
+ maximum: 6
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@65 {
+ compatible = "issi,is31fl3196";
+ reg = <0x65>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ shutdown-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
+
+ led@1 {
+ reg = <1>;
+ label = "red:aux";
+ led-max-microamp = <10000>;
+ };
+
+ led@5 {
+ reg = <5>;
+ label = "green:power";
+ linux,default-trigger = "default-on";
+ };
+ };
+ };
+...
+
diff --git a/Documentation/devicetree/bindings/leds/leds-aat1290.txt b/Documentation/devicetree/bindings/leds/leds-aat1290.txt
deleted file mode 100644
index 62ed17ec075b..000000000000
--- a/Documentation/devicetree/bindings/leds/leds-aat1290.txt
+++ /dev/null
@@ -1,77 +0,0 @@
-* Skyworks Solutions, Inc. AAT1290 Current Regulator for Flash LEDs
-
-The device is controlled through two pins: FL_EN and EN_SET. The pins when,
-asserted high, enable flash strobe and movie mode (max 1/2 of flash current)
-respectively. In order to add a capability of selecting the strobe signal source
-(e.g. CPU or camera sensor) there is an additional switch required, independent
-of the flash chip. The switch is controlled with pin control.
-
-Required properties:
-
-- compatible : Must be "skyworks,aat1290".
-- flen-gpios : Must be device tree identifier of the flash device FL_EN pin.
-- enset-gpios : Must be device tree identifier of the flash device EN_SET pin.
-
-Optional properties:
-- pinctrl-names : Must contain entries: "default", "host", "isp". Entries
- "default" and "host" must refer to the same pin configuration
- node, which sets the host as a strobe signal provider. Entry
- "isp" must refer to the pin configuration node, which sets the
- ISP as a strobe signal provider.
-
-A discrete LED element connected to the device must be represented by a child
-node - see Documentation/devicetree/bindings/leds/common.txt.
-
-Required properties of the LED child node:
-- led-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
-- flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
- Maximum flash LED supply current can be calculated using
- following formula: I = 1A * 162kohm / Rset.
-- flash-max-timeout-us : see Documentation/devicetree/bindings/leds/common.txt
- Maximum flash timeout can be calculated using following
- formula: T = 8.82 * 10^9 * Ct.
-
-Optional properties of the LED child node:
-- function : see Documentation/devicetree/bindings/leds/common.txt
-- color : see Documentation/devicetree/bindings/leds/common.txt
-- label : see Documentation/devicetree/bindings/leds/common.txt (deprecated)
-
-Example (by Ct = 220nF, Rset = 160kohm and exynos4412-trats2 board with
-a switch that allows for routing strobe signal either from the host or from
-the camera sensor):
-
-#include "exynos4412.dtsi"
-#include <dt-bindings/leds/common.h>
-
-led-controller {
- compatible = "skyworks,aat1290";
- flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
- enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
-
- pinctrl-names = "default", "host", "isp";
- pinctrl-0 = <&camera_flash_host>;
- pinctrl-1 = <&camera_flash_host>;
- pinctrl-2 = <&camera_flash_isp>;
-
- camera_flash: led {
- function = LED_FUNCTION_FLASH;
- color = <LED_COLOR_ID_WHITE>;
- led-max-microamp = <520833>;
- flash-max-microamp = <1012500>;
- flash-max-timeout-us = <1940000>;
- };
-};
-
-&pinctrl_0 {
- camera_flash_host: camera-flash-host {
- samsung,pins = "gpj1-0";
- samsung,pin-function = <1>;
- samsung,pin-val = <0>;
- };
-
- camera_flash_isp: camera-flash-isp {
- samsung,pins = "gpj1-0";
- samsung,pin-function = <1>;
- samsung,pin-val = <1>;
- };
-};
diff --git a/Documentation/devicetree/bindings/leds/leds-bcm63138.yaml b/Documentation/devicetree/bindings/leds/leds-bcm63138.yaml
new file mode 100644
index 000000000000..52252fb6bb32
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/leds-bcm63138.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/leds-bcm63138.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom's BCM63138 LEDs controller
+
+maintainers:
+ - Rafał Miłecki <rafal@milecki.pl>
+
+description: |
+ This LEDs controller was first used on BCM63138 and later reused on BCM4908,
+ BCM6848, BCM6858, BCM63138, BCM63148, BCM63381 and BCM68360 SoCs.
+
+ It supports up to 32 LEDs that can be connected parallelly or serially. It
+ also includes limited support for hardware blinking.
+
+ Binding serially connected LEDs isn't documented yet.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - brcm,bcm4908-leds
+ - brcm,bcm6848-leds
+ - brcm,bcm6858-leds
+ - brcm,bcm63148-leds
+ - brcm,bcm63381-leds
+ - brcm,bcm68360-leds
+ - const: brcm,bcm63138-leds
+ - const: brcm,bcm63138-leds
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^led@[a-f0-9]+$":
+ type: object
+
+ $ref: common.yaml#
+
+ properties:
+ reg:
+ maxItems: 1
+ description: LED pin number
+
+ active-low:
+ type: boolean
+ description: Makes LED active low
+
+ required:
+ - reg
+
+ unevaluatedProperties: false
+
+required:
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+
+ leds@ff800800 {
+ compatible = "brcm,bcm4908-leds", "brcm,bcm63138-leds";
+ reg = <0xff800800 0xdc>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0x0>;
+ function = LED_FUNCTION_POWER;
+ color = <LED_COLOR_ID_GREEN>;
+ default-state = "on";
+ };
+
+ led@3 {
+ reg = <0x3>;
+ function = LED_FUNCTION_STATUS;
+ color = <LED_COLOR_ID_GREEN>;
+ active-low;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
index f41d021ed677..31840e33dcf5 100644
--- a/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-class-multicolor.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Common properties for the multicolor LED class.
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
Bindings for multi color LEDs show how to describe current outputs of
@@ -19,22 +19,22 @@ description: |
LED class. Common LED nodes and properties are inherited from the common.yaml
within this documentation directory.
-patternProperties:
- "^multi-led(@[0-9a-f])?$":
- type: object
- description: Represents the LEDs that are to be grouped.
- properties:
- color:
- description: |
- For multicolor LED support this property should be defined as either
- LED_COLOR_ID_RGB or LED_COLOR_ID_MULTI which can be found in
- include/linux/leds/common.h.
- enum: [ 8, 9 ]
-
- $ref: "common.yaml#"
-
- required:
- - color
+properties:
+ $nodename:
+ pattern: "^multi-led(@[0-9a-f])?$"
+
+ color:
+ description: |
+ For multicolor LED support this property should be defined as either
+ LED_COLOR_ID_RGB or LED_COLOR_ID_MULTI which can be found in
+ include/linux/leds/common.h.
+ enum: [ 8, 9 ]
+
+required:
+ - color
+
+allOf:
+ - $ref: "common.yaml#"
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt b/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
deleted file mode 100644
index 676d43ec8169..000000000000
--- a/Documentation/devicetree/bindings/leds/leds-is31fl319x.txt
+++ /dev/null
@@ -1,61 +0,0 @@
-LEDs connected to is31fl319x LED controller chip
-
-Required properties:
-- compatible : Should be any of
- "issi,is31fl3190"
- "issi,is31fl3191"
- "issi,is31fl3193"
- "issi,is31fl3196"
- "issi,is31fl3199"
- "si-en,sn3199".
-- #address-cells: Must be 1.
-- #size-cells: Must be 0.
-- reg: 0x64, 0x65, 0x66, or 0x67.
-
-Optional properties:
-- audio-gain-db : audio gain selection for external analog modulation input.
- Valid values: 0 - 21, step by 3 (rounded down)
- Default: 0
-- shutdown-gpios : Specifier of the GPIO connected to SDB pin of the chip.
-
-Each led is represented as a sub-node of the issi,is31fl319x device.
-There can be less leds subnodes than the chip can support but not more.
-
-Required led sub-node properties:
-- reg : number of LED line
- Valid values: 1 - number of leds supported by the chip variant.
-
-Optional led sub-node properties:
-- label : see Documentation/devicetree/bindings/leds/common.txt.
-- linux,default-trigger :
- see Documentation/devicetree/bindings/leds/common.txt.
-- led-max-microamp : (optional)
- Valid values: 5000 - 40000, step by 5000 (rounded down)
- Default: 20000 (20 mA)
- Note: a driver will take the lowest of all led limits since the
- chip has a single global setting. The lowest value will be chosen
- due to the PWM specificity, where lower brightness is achieved
- by reducing the dury-cycle of pulses and not the current, which
- will always have its peak value equal to led-max-microamp.
-
-Examples:
-
-fancy_leds: leds@65 {
- compatible = "issi,is31fl3196";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x65>;
- shutdown-gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
-
- red_aux: led@1 {
- label = "red:aux";
- reg = <1>;
- led-max-microamp = <10000>;
- };
-
- green_power: led@5 {
- label = "green:power";
- reg = <5>;
- linux,default-trigger = "default-on";
- };
-};
diff --git a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
index f12fe5b53f30..63da380748bf 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-lp50xx.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: LED driver for LP50XX RGB LED from Texas Instruments.
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into
@@ -56,6 +56,8 @@ patternProperties:
'^multi-led@[0-9a-f]$':
type: object
$ref: leds-class-multicolor.yaml#
+ unevaluatedProperties: false
+
properties:
reg:
minItems: 1
@@ -65,8 +67,14 @@ patternProperties:
for the child node. The LED modules can either be used stand alone
or grouped into a module bank.
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
patternProperties:
- "(^led-[0-9a-f]$|led)":
+ "^led@[0-9a-f]+$":
type: object
$ref: common.yaml#
@@ -78,60 +86,66 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/gpio/gpio.h>
- #include <dt-bindings/leds/common.h>
-
- i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- led-controller@14 {
- compatible = "ti,lp5009";
- reg = <0x14>;
- #address-cells = <1>;
- #size-cells = <0>;
- enable-gpios = <&gpio1 16>;
-
- multi-led@1 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x1>;
- color = <LED_COLOR_ID_RGB>;
- function = LED_FUNCTION_CHARGING;
-
- led-0 {
- color = <LED_COLOR_ID_RED>;
- };
-
- led-1 {
- color = <LED_COLOR_ID_GREEN>;
- };
-
- led-2 {
- color = <LED_COLOR_ID_BLUE>;
- };
- };
-
- multi-led@2 {
- #address-cells = <1>;
- #size-cells = <2>;
- reg = <0x2 0x3 0x5>;
- color = <LED_COLOR_ID_RGB>;
- function = LED_FUNCTION_STANDBY;
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
- led-6 {
- color = <LED_COLOR_ID_RED>;
- };
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
- led-7 {
- color = <LED_COLOR_ID_GREEN>;
+ led-controller@14 {
+ compatible = "ti,lp5009";
+ reg = <0x14>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ enable-gpios = <&gpio1 16>;
+
+ multi-led@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x1>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_CHARGING;
+
+ led@0 {
+ reg = <0x0>;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@1 {
+ reg = <0x1>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@2 {
+ reg = <0x2>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
};
- led-8 {
- color = <LED_COLOR_ID_BLUE>;
+ multi-led@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x3>, <0x4>, <0x5>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_STANDBY;
+
+ led@3 {
+ reg = <0x3>;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led@4 {
+ reg = <0x4>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@5 {
+ reg = <0x5>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
};
- };
- };
+ };
};
...
diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml b/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
index f552cd143d5b..7ec676e53851 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.yaml
@@ -108,119 +108,119 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/leds/common.h>
-
- i2c {
- #address-cells = <1>;
- #size-cells = <0>;
-
- led-controller@32 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "ti,lp8501";
- reg = <0x32>;
- clock-mode = /bits/ 8 <2>;
- pwr-sel = /bits/ 8 <3>; /* D1~9 connected to VOUT */
-
- led@0 {
- reg = <0>;
- chan-name = "d1";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@1 {
- reg = <1>;
- chan-name = "d2";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@2 {
- reg = <2>;
- chan-name = "d3";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@3 {
- reg = <3>;
- chan-name = "d4";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@4 {
- reg = <4>;
- chan-name = "d5";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@5 {
- reg = <5>;
- chan-name = "d6";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@6 {
- reg = <6>;
- chan-name = "d7";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@7 {
- reg = <7>;
- chan-name = "d8";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
-
- led@8 {
- reg = <8>;
- chan-name = "d9";
- led-cur = /bits/ 8 <0x14>;
- max-cur = /bits/ 8 <0x20>;
- };
+ #include <dt-bindings/leds/common.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led-controller@32 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "ti,lp8501";
+ reg = <0x32>;
+ clock-mode = /bits/ 8 <2>;
+ pwr-sel = /bits/ 8 <3>; /* D1~9 connected to VOUT */
+
+ led@0 {
+ reg = <0>;
+ chan-name = "d1";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@1 {
+ reg = <1>;
+ chan-name = "d2";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@2 {
+ reg = <2>;
+ chan-name = "d3";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@3 {
+ reg = <3>;
+ chan-name = "d4";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@4 {
+ reg = <4>;
+ chan-name = "d5";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@5 {
+ reg = <5>;
+ chan-name = "d6";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@6 {
+ reg = <6>;
+ chan-name = "d7";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@7 {
+ reg = <7>;
+ chan-name = "d8";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
+
+ led@8 {
+ reg = <8>;
+ chan-name = "d9";
+ led-cur = /bits/ 8 <0x14>;
+ max-cur = /bits/ 8 <0x20>;
+ };
};
- led-controller@33 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "national,lp5523";
- reg = <0x33>;
- clock-mode = /bits/ 8 <0>;
-
- multi-led@2 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x2>;
- color = <LED_COLOR_ID_RGB>;
- function = LED_FUNCTION_STANDBY;
- linux,default-trigger = "heartbeat";
-
- led@0 {
- led-cur = /bits/ 8 <50>;
- max-cur = /bits/ 8 <100>;
- reg = <0x0>;
- color = <LED_COLOR_ID_GREEN>;
- };
-
- led@1 {
- led-cur = /bits/ 8 <50>;
- max-cur = /bits/ 8 <100>;
- reg = <0x1>;
- color = <LED_COLOR_ID_BLUE>;
- };
-
- led@6 {
- led-cur = /bits/ 8 <50>;
- max-cur = /bits/ 8 <100>;
- reg = <0x6>;
- color = <LED_COLOR_ID_RED>;
- };
+ led-controller@33 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "national,lp5523";
+ reg = <0x33>;
+ clock-mode = /bits/ 8 <0>;
+
+ multi-led@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x2>;
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_STANDBY;
+ linux,default-trigger = "heartbeat";
+
+ led@0 {
+ led-cur = /bits/ 8 <50>;
+ max-cur = /bits/ 8 <100>;
+ reg = <0x0>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led@1 {
+ led-cur = /bits/ 8 <50>;
+ max-cur = /bits/ 8 <100>;
+ reg = <0x1>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+
+ led@6 {
+ led-cur = /bits/ 8 <50>;
+ max-cur = /bits/ 8 <100>;
+ reg = <0x6>;
+ color = <LED_COLOR_ID_RED>;
+ };
};
};
};
diff --git a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
index 6625a528f727..bd6ec04a8727 100644
--- a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml
@@ -19,6 +19,14 @@ properties:
multi-led:
type: object
+ $ref: leds-class-multicolor.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ max-brightness:
+ description:
+ Maximum brightness possible for the LED
+ $ref: /schemas/types.yaml#/definitions/uint32
patternProperties:
"^led-[0-9a-z]+$":
@@ -33,6 +41,10 @@ properties:
pwm-names: true
+ active-low:
+ description: For PWMs where the LED is wired to supply rather than ground.
+ type: boolean
+
color: true
required:
@@ -42,9 +54,6 @@ properties:
required:
- compatible
-allOf:
- - $ref: leds-class-multicolor.yaml#
-
additionalProperties: false
examples:
@@ -55,24 +64,24 @@ examples:
compatible = "pwm-leds-multicolor";
multi-led {
- color = <LED_COLOR_ID_RGB>;
- function = LED_FUNCTION_INDICATOR;
- max-brightness = <65535>;
-
- led-red {
- pwms = <&pwm1 0 1000000>;
- color = <LED_COLOR_ID_RED>;
- };
-
- led-green {
- pwms = <&pwm2 0 1000000>;
- color = <LED_COLOR_ID_GREEN>;
- };
-
- led-blue {
- pwms = <&pwm3 0 1000000>;
- color = <LED_COLOR_ID_BLUE>;
- };
+ color = <LED_COLOR_ID_RGB>;
+ function = LED_FUNCTION_INDICATOR;
+ max-brightness = <65535>;
+
+ led-red {
+ pwms = <&pwm1 0 1000000>;
+ color = <LED_COLOR_ID_RED>;
+ };
+
+ led-green {
+ pwms = <&pwm2 0 1000000>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led-blue {
+ pwms = <&pwm3 0 1000000>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
};
};
diff --git a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
index 409a4c7298e1..497db289169d 100644
--- a/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
+++ b/Documentation/devicetree/bindings/leds/leds-qcom-lpg.yaml
@@ -17,6 +17,7 @@ description: >
properties:
compatible:
enum:
+ - qcom,pm660l-lpg
- qcom,pm8150b-lpg
- qcom,pm8150l-lpg
- qcom,pm8350c-pwm
@@ -58,6 +59,8 @@ properties:
multi-led:
type: object
$ref: leds-class-multicolor.yaml#
+ unevaluatedProperties: false
+
properties:
"#address-cells":
const: 1
diff --git a/Documentation/devicetree/bindings/leds/mediatek,mt6370-flashlight.yaml b/Documentation/devicetree/bindings/leds/mediatek,mt6370-flashlight.yaml
new file mode 100644
index 000000000000..e9d02ed6a590
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/mediatek,mt6370-flashlight.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/mediatek,mt6370-flashlight.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Flash LED driver for MT6370 PMIC from MediaTek Integrated.
+
+maintainers:
+ - Alice Chen <alice_chen@richtek.com>
+
+description: |
+ This module is part of the MT6370 MFD device.
+ Add MT6370 flash LED driver include 2-channel flash LED support Torch/Strobe Mode.
+
+properties:
+ compatible:
+ const: mediatek,mt6370-flashlight
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^led@[0-1]$":
+ type: object
+ $ref: common.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ enum: [0, 1]
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml b/Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml
new file mode 100644
index 000000000000..204b103ffc2c
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/mediatek,mt6370-indicator.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/mediatek,mt6370-indicator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LED driver for MT6370 PMIC from MediaTek Integrated.
+
+maintainers:
+ - Alice Chen <alice_chen@richtek.com>
+
+description: |
+ This module is part of the MT6370 MFD device.
+ Add MT6370 LED driver include 4-channel RGB LED support Register/PWM/Breath Mode
+
+allOf:
+ - $ref: leds-class-multicolor.yaml#
+
+properties:
+ compatible:
+ const: mediatek,mt6370-indicator
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^multi-led@[0-3]$":
+ type: object
+
+ properties:
+ reg:
+ enum: [0, 1, 2, 3]
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ patternProperties:
+ "^led@[0-2]$":
+ type: object
+ $ref: common.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ enum: [0, 1, 2]
+
+ required:
+ - reg
+ - color
+
+ required:
+ - reg
+ - color
+ - "#address-cells"
+ - "#size-cells"
+
+ "^led@[0-3]$":
+ type: object
+ $ref: common.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ enum: [0, 1, 2, 3]
+
+ required:
+ - reg
+ - color
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/leds/skyworks,aat1290.yaml b/Documentation/devicetree/bindings/leds/skyworks,aat1290.yaml
new file mode 100644
index 000000000000..a6aaa92dbccd
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/skyworks,aat1290.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/leds/skyworks,aat1290.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Skyworks Solutions, Inc. AAT1290 Current Regulator for Flash LEDs
+
+maintainers:
+ - Jacek Anaszewski <jacek.anaszewski@gmail.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ The device is controlled through two pins:: FL_EN and EN_SET. The pins when,
+ asserted high, enable flash strobe and movie mode (max 1/2 of flash current)
+ respectively. In order to add a capability of selecting the strobe signal
+ source (e.g. CPU or camera sensor) there is an additional switch required,
+ independent of the flash chip. The switch is controlled with pin control.
+
+properties:
+ compatible:
+ const: skyworks,aat1290
+
+ enset-gpios:
+ maxItems: 1
+ description: EN_SET pin
+
+ flen-gpios:
+ maxItems: 1
+ description: FL_EN pin
+
+ led:
+ $ref: common.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ led-max-microamp: true
+
+ flash-max-microamp:
+ description: |
+ Maximum flash LED supply current can be calculated using following
+ formula:: I = 1A * 162 kOhm / Rset.
+
+ flash-max-timeout-us:
+ description: |
+ Maximum flash timeout can be calculated using following formula::
+ T = 8.82 * 10^9 * Ct.
+
+ required:
+ - flash-max-microamp
+ - flash-max-timeout-us
+ - led-max-microamp
+
+ pinctrl-names:
+ items:
+ - const: default
+ - const: host
+ - const: isp
+
+ pinctrl-0: true
+ pinctrl-1: true
+ pinctrl-2: true
+
+required:
+ - compatible
+ - enset-gpios
+ - flen-gpios
+ - led
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/leds/common.h>
+
+ // Ct = 220 nF, Rset = 160 kOhm
+ led-controller {
+ compatible = "skyworks,aat1290";
+ flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
+ enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
+
+ pinctrl-names = "default", "host", "isp";
+ pinctrl-0 = <&camera_flash_host>;
+ pinctrl-1 = <&camera_flash_host>;
+ pinctrl-2 = <&camera_flash_isp>;
+
+ led {
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ led-max-microamp = <520833>;
+ flash-max-microamp = <1012500>;
+ flash-max-timeout-us = <1940000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml b/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml
index ea06976fbbc7..dfd26b998189 100644
--- a/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/amlogic,meson-gxbb-mhu.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson Message-Handling-Unit Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The Amlogic's Meson SoCs Message-Handling-Unit (MHU) is a mailbox controller
diff --git a/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml b/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml
index bd49c201477d..d9a4f4a02d7c 100644
--- a/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/arm,mhu.yaml
@@ -57,6 +57,7 @@ properties:
maxItems: 1
interrupts:
+ minItems: 2
items:
- description: low-priority non-secure
- description: high-priority non-secure
diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
index 7a86e7926dd2..191c1ce15009 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
@@ -72,14 +72,16 @@ properties:
type : Channel type
channel : Channel number
- This MU support 4 type of unidirectional channels, each type
- has 4 channels. A total of 16 channels. Following types are
+ This MU support 5 type of unidirectional channels, each type
+ has 4 channels except RST channel which only has 1 channel.
+ A total of 17 channels. Following types are
supported:
0 - TX channel with 32bit transmit register and IRQ transmit
acknowledgment support.
1 - RX channel with 32bit receive register and IRQ support
2 - TX doorbell channel. Without own register and no ACK support.
3 - RX doorbell channel.
+ 4 - RST channel
const: 2
clocks:
diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
new file mode 100644
index 000000000000..c579ac074ca7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mailbox/mediatek,gce-mailbox.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mailbox/mediatek,gce-mailbox.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Global Command Engine Mailbox
+
+maintainers:
+ - Houlong Wei <houlong.wei@mediatek.com>
+
+description:
+ The Global Command Engine (GCE) is used to help read/write registers with
+ critical time limitation, such as updating display configuration during the
+ vblank. The GCE can be used to implement the Command Queue (CMDQ) driver.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt6779-gce
+ - mediatek,mt8173-gce
+ - mediatek,mt8183-gce
+ - mediatek,mt8186-gce
+ - mediatek,mt8192-gce
+ - mediatek,mt8195-gce
+
+ "#mbox-cells":
+ const: 2
+ description:
+ The first cell describes the Thread ID of the GCE,
+ the second cell describes the priority of the GCE thread
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Global Command Engine clock
+
+ clock-names:
+ items:
+ - const: gce
+
+required:
+ - compatible
+ - "#mbox-cells"
+ - reg
+ - interrupts
+ - clocks
+
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt8195-gce
+ then:
+ required:
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8173-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ gce: mailbox@10212000 {
+ compatible = "mediatek,mt8173-gce";
+ reg = <0 0x10212000 0 0x1000>;
+ interrupts = <GIC_SPI 135 IRQ_TYPE_LEVEL_LOW>;
+ #mbox-cells = <2>;
+ clocks = <&infracfg CLK_INFRA_GCE>;
+ clock-names = "gce";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
index 082d397d3e89..935937c67133 100644
--- a/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
+++ b/Documentation/devicetree/bindings/mailbox/microchip,mpfs-mailbox.yaml
@@ -14,9 +14,15 @@ properties:
const: microchip,mpfs-mailbox
reg:
- items:
- - description: mailbox data registers
- - description: mailbox interrupt registers
+ oneOf:
+ - items:
+ - description: mailbox control & data registers
+ - description: mailbox interrupt registers
+ deprecated: true
+ - items:
+ - description: mailbox control registers
+ - description: mailbox interrupt registers
+ - description: mailbox data registers
interrupts:
maxItems: 1
@@ -39,7 +45,8 @@ examples:
#size-cells = <2>;
mbox: mailbox@37020000 {
compatible = "microchip,mpfs-mailbox";
- reg = <0x0 0x37020000 0x0 0x1000>, <0x0 0x2000318c 0x0 0x40>;
+ reg = <0x0 0x37020000 0x0 0x58>, <0x0 0x2000318C 0x0 0x40>,
+ <0x0 0x37020800 0x0 0x100>;
interrupt-parent = <&L1>;
interrupts = <96>;
#mbox-cells = <1>;
diff --git a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt
deleted file mode 100644
index c2aeba63bd47..000000000000
--- a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt
+++ /dev/null
@@ -1,82 +0,0 @@
-MediaTek GCE
-===============
-
-The Global Command Engine (GCE) is used to help read/write registers with
-critical time limitation, such as updating display configuration during the
-vblank. The GCE can be used to implement the Command Queue (CMDQ) driver.
-
-CMDQ driver uses mailbox framework for communication. Please refer to
-mailbox.txt for generic information about mailbox device-tree bindings.
-
-Required properties:
-- compatible: can be "mediatek,mt8173-gce", "mediatek,mt8183-gce",
- "mediatek,mt8186-gce", "mediatek,mt8192-gce", "mediatek,mt8195-gce" or
- "mediatek,mt6779-gce".
-- reg: Address range of the GCE unit
-- interrupts: The interrupt signal from the GCE block
-- clock: Clocks according to the common clock binding
-- clock-names: Must be "gce" to stand for GCE clock
-- #mbox-cells: Should be 2.
- <&phandle channel priority>
- phandle: Label name of a gce node.
- channel: Channel of mailbox. Be equal to the thread id of GCE.
- priority: Priority of GCE thread.
-
-Required properties for a client device:
-- mboxes: Client use mailbox to communicate with GCE, it should have this
- property and list of phandle, mailbox specifiers.
-Optional properties for a client device:
-- mediatek,gce-client-reg: Specify the sub-system id which is corresponding
- to the register address, it should have this property and list of phandle,
- sub-system specifiers.
- <&phandle subsys_number start_offset size>
- phandle: Label name of a gce node.
- subsys_number: specify the sub-system id which is corresponding
- to the register address.
- start_offset: the start offset of register address that GCE can access.
- size: the total size of register address that GCE can access.
-
-Optional properties for a client mutex node:
-- mediatek,gce-events: GCE events used by clients. The event numbers are
- defined in 'dt-bindings/gce/<chip>-gce.h'.
-
-Some vaules of properties are defined in 'dt-bindings/gce/mt8173-gce.h',
-'dt-bindings/gce/mt8183-gce.h', 'dt-bindings/gce/mt8186-gce.h'
-'dt-bindings/gce/mt8192-gce.h', 'dt-bindings/gce/mt8195-gce.h' or
-'dt-bindings/gce/mt6779-gce.h'.
-Such as sub-system ids, thread priority, event ids.
-
-Example:
-
- gce: gce@10212000 {
- compatible = "mediatek,mt8173-gce";
- reg = <0 0x10212000 0 0x1000>;
- interrupts = <GIC_SPI 135 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&infracfg CLK_INFRA_GCE>;
- clock-names = "gce";
- #mbox-cells = <2>;
- };
-
-Example for a client device:
-
- mmsys: clock-controller@14000000 {
- compatible = "mediatek,mt8173-mmsys";
- mboxes = <&gce 0 CMDQ_THR_PRIO_LOWEST>,
- <&gce 1 CMDQ_THR_PRIO_LOWEST>;
- mutex-event-eof = <CMDQ_EVENT_MUTEX0_STREAM_EOF
- CMDQ_EVENT_MUTEX1_STREAM_EOF>;
- mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x3000 0x1000>,
- <&gce SUBSYS_1401XXXX 0x2000 0x100>;
- ...
- };
-
-Example for a client mutex node:
- mutex: mutex@14020000 {
- compatible = "mediatek,mt8173-disp-mutex";
- reg = <0 0x14020000 0 0x1000>;
- interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_LOW>;
- power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
- clocks = <&mmsys CLK_MM_MUTEX_32K>;
- mediatek,gce-events = <CMDQ_EVENT_MUTEX0_STREAM_EOF>,
- <CMDQ_EVENT_MUTEX1_STREAM_EOF>;
- };
diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml
index 3b5ba7ecc19d..f24fd84b4b05 100644
--- a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml
+++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.yaml
@@ -15,49 +15,47 @@ maintainers:
properties:
compatible:
- enum:
- - qcom,ipq6018-apcs-apps-global
- - qcom,ipq8074-apcs-apps-global
- - qcom,msm8916-apcs-kpss-global
- - qcom,msm8939-apcs-kpss-global
- - qcom,msm8953-apcs-kpss-global
- - qcom,msm8976-apcs-kpss-global
- - qcom,msm8994-apcs-kpss-global
- - qcom,msm8996-apcs-hmss-global
- - qcom,msm8998-apcs-hmss-global
- - qcom,qcm2290-apcs-hmss-global
- - qcom,qcs404-apcs-apps-global
- - qcom,sc7180-apss-shared
- - qcom,sc8180x-apss-shared
- - qcom,sdm660-apcs-hmss-global
- - qcom,sdm845-apss-shared
- - qcom,sm6125-apcs-hmss-global
- - qcom,sm6115-apcs-hmss-global
- - qcom,sm8150-apss-shared
-
+ oneOf:
+ - items:
+ - enum:
+ - qcom,ipq6018-apcs-apps-global
+ - qcom,ipq8074-apcs-apps-global
+ - qcom,msm8976-apcs-kpss-global
+ - qcom,msm8996-apcs-hmss-global
+ - qcom,msm8998-apcs-hmss-global
+ - qcom,qcm2290-apcs-hmss-global
+ - qcom,sc7180-apss-shared
+ - qcom,sc8180x-apss-shared
+ - qcom,sdm660-apcs-hmss-global
+ - qcom,sdm845-apss-shared
+ - qcom,sm6125-apcs-hmss-global
+ - qcom,sm6115-apcs-hmss-global
+ - qcom,sm8150-apss-shared
+ - items:
+ - enum:
+ - qcom,msm8916-apcs-kpss-global
+ - qcom,msm8939-apcs-kpss-global
+ - qcom,msm8953-apcs-kpss-global
+ - qcom,msm8994-apcs-kpss-global
+ - qcom,qcs404-apcs-apps-global
+ - const: syscon
reg:
maxItems: 1
clocks:
description: phandles to the parent clocks of the clock driver
minItems: 2
- items:
- - description: primary pll parent of the clock driver
- - description: auxiliary parent
- - description: reference clock
+ maxItems: 3
'#mbox-cells':
const: 1
'#clock-cells':
- const: 0
+ enum: [0, 1]
clock-names:
minItems: 2
- items:
- - const: pll
- - const: aux
- - const: ref
+ maxItems: 3
required:
- compatible
@@ -71,8 +69,6 @@ allOf:
properties:
compatible:
enum:
- - qcom,ipq6018-apcs-apps-global
- - qcom,ipq8074-apcs-apps-global
- qcom,msm8916-apcs-kpss-global
- qcom,msm8994-apcs-kpss-global
- qcom,msm8996-apcs-hmss-global
@@ -86,7 +82,13 @@ allOf:
then:
properties:
clocks:
- maxItems: 2
+ items:
+ - description: primary pll parent of the clock driver
+ - description: auxiliary parent
+ clock-names:
+ items:
+ - const: pll
+ - const: aux
- if:
properties:
compatible:
@@ -95,7 +97,46 @@ allOf:
then:
properties:
clocks:
- maxItems: 3
+ items:
+ - description: primary pll parent of the clock driver
+ - description: auxiliary parent
+ - description: reference clock
+ clock-names:
+ items:
+ - const: pll
+ - const: aux
+ - const: ref
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,ipq6018-apcs-apps-global
+ - qcom,ipq8074-apcs-apps-global
+ then:
+ properties:
+ clocks:
+ items:
+ - description: primary pll parent of the clock driver
+ - description: XO clock
+ clock-names:
+ items:
+ - const: pll
+ - const: xo
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,ipq6018-apcs-apps-global
+ - qcom,ipq8074-apcs-apps-global
+ then:
+ properties:
+ '#clock-cells':
+ const: 1
+ else:
+ properties:
+ '#clock-cells':
+ const: 0
+
examples:
# Example apcs with msm8996
@@ -121,7 +162,7 @@ examples:
#define GCC_APSS_AHB_CLK_SRC 1
#define GCC_GPLL0_AO_OUT_MAIN 123
apcs: mailbox@b011000 {
- compatible = "qcom,qcs404-apcs-apps-global";
+ compatible = "qcom,qcs404-apcs-apps-global", "syscon";
reg = <0x0b011000 0x1000>;
#mbox-cells = <1>;
clocks = <&apcs_hfpll>, <&gcc GCC_GPLL0_AO_OUT_MAIN>;
diff --git a/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml b/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
index 1994be858940..baca4786ff94 100644
--- a/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
+++ b/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
@@ -25,6 +25,7 @@ properties:
items:
- enum:
- qcom,sm6350-ipcc
+ - qcom,sm6375-ipcc
- qcom,sm8250-ipcc
- qcom,sm8350-ipcc
- qcom,sm8450-ipcc
diff --git a/Documentation/devicetree/bindings/media/allegro,al5e.yaml b/Documentation/devicetree/bindings/media/allegro,al5e.yaml
index 135bea94b587..2899d26d690e 100644
--- a/Documentation/devicetree/bindings/media/allegro,al5e.yaml
+++ b/Documentation/devicetree/bindings/media/allegro,al5e.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allegro,al5e.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allegro DVT Video IP Codecs Device Tree Bindings
+title: Allegro DVT Video IP Codecs
maintainers:
- Michael Tretter <m.tretter@pengutronix.de>
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
index 6ced94064215..617264ce477d 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-csi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allwinner,sun4i-a10-csi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 CMOS Sensor Interface (CSI) Device Tree Bindings
+title: Allwinner A10 CMOS Sensor Interface (CSI)
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml
index 6d8395d6bca0..704033e21ee8 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allwinner,sun4i-a10-ir.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Infrared Controller Device Tree Bindings
+title: Allwinner A10 Infrared Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
index ee7fc3515d89..541325f900a1 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-video-engine.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allwinner,sun4i-a10-video-engine.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Video Engine Device Tree Bindings
+title: Allwinner A10 Video Engine
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
index 8b568072a069..f1ccca35a790 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allwinner,sun6i-a31-csi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 CMOS Sensor Interface (CSI) Device Tree Bindings
+title: Allwinner A31 CMOS Sensor Interface (CSI)
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -42,6 +42,7 @@ properties:
port:
$ref: /schemas/graph.yaml#/$defs/port-base
+ description: Parallel input port, connect to a parallel sensor
properties:
endpoint:
@@ -59,7 +60,24 @@ properties:
required:
- bus-width
- additionalProperties: false
+ unevaluatedProperties: false
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: "#/properties/port"
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: MIPI CSI-2 bridge input port
+
+ anyOf:
+ - required:
+ - port@0
+ - required:
+ - port@1
required:
- compatible
@@ -69,6 +87,12 @@ required:
- clock-names
- resets
+oneOf:
+ - required:
+ - ports
+ - required:
+ - port
+
additionalProperties: false
examples:
@@ -89,19 +113,25 @@ examples:
"ram";
resets = <&ccu RST_BUS_CSI>;
- port {
- /* Parallel bus endpoint */
- csi1_ep: endpoint {
- remote-endpoint = <&adv7611_ep>;
- bus-width = <16>;
-
- /*
- * If hsync-active/vsync-active are missing,
- * embedded BT.656 sync is used.
- */
- hsync-active = <0>; /* Active low */
- vsync-active = <0>; /* Active low */
- pclk-sample = <1>; /* Rising */
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ /* Parallel bus endpoint */
+ csi1_ep: endpoint {
+ remote-endpoint = <&adv7611_ep>;
+ bus-width = <16>;
+
+ /*
+ * If hsync-active/vsync-active are missing,
+ * embedded BT.656 sync is used.
+ */
+ hsync-active = <0>; /* Active low */
+ vsync-active = <0>; /* Active low */
+ pclk-sample = <1>; /* Rising */
+ };
};
};
};
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-mipi-csi2.yaml
new file mode 100644
index 000000000000..54e15ab8a7f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-mipi-csi2.yaml
@@ -0,0 +1,137 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allwinner,sun6i-a31-mipi-csi2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A31 MIPI CSI-2
+
+maintainers:
+ - Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: allwinner,sun6i-a31-mipi-csi2
+ - items:
+ - const: allwinner,sun8i-v3s-mipi-csi2
+ - const: allwinner,sun6i-a31-mipi-csi2
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mod
+
+ phys:
+ maxItems: 1
+ description: MIPI D-PHY
+
+ phy-names:
+ items:
+ - const: dphy
+
+ resets:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ description: Input port, connect to a MIPI CSI-2 sensor
+
+ properties:
+ reg:
+ const: 0
+
+ endpoint:
+ $ref: video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ minItems: 1
+ maxItems: 4
+
+ required:
+ - data-lanes
+
+ unevaluatedProperties: false
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output port, connect to a CSI controller
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - phys
+ - phy-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/sun8i-v3s-ccu.h>
+ #include <dt-bindings/reset/sun8i-v3s-ccu.h>
+
+ mipi_csi2: csi@1cb1000 {
+ compatible = "allwinner,sun8i-v3s-mipi-csi2",
+ "allwinner,sun6i-a31-mipi-csi2";
+ reg = <0x01cb1000 0x1000>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CSI>,
+ <&ccu CLK_CSI1_SCLK>;
+ clock-names = "bus", "mod";
+ resets = <&ccu RST_BUS_CSI>;
+
+ phys = <&dphy>;
+ phy-names = "dphy";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_csi2_in: port@0 {
+ reg = <0>;
+
+ mipi_csi2_in_ov5648: endpoint {
+ data-lanes = <1 2 3 4>;
+
+ remote-endpoint = <&ov5648_out_mipi_csi2>;
+ };
+ };
+
+ mipi_csi2_out: port@1 {
+ reg = <1>;
+
+ mipi_csi2_out_csi0: endpoint {
+ remote-endpoint = <&csi0_in_mipi_csi2>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml b/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml
index a258832d520c..c2f292dd01ed 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allwinner,sun8i-a83t-de2-rotate.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A83T DE2 Rotate Device Tree Bindings
+title: Allwinner A83T DE2 Rotate
maintainers:
- Jernej Skrabec <jernej.skrabec@siol.net>
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml
new file mode 100644
index 000000000000..3cac68a87ad7
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-mipi-csi2.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/allwinner,sun8i-a83t-mipi-csi2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A83T MIPI CSI-2
+
+maintainers:
+ - Paul Kocialkowski <paul.kocialkowski@bootlin.com>
+
+properties:
+ compatible:
+ const: allwinner,sun8i-a83t-mipi-csi2
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+ - description: MIPI-specific Clock
+ - description: Misc CSI Clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mod
+ - const: mipi
+ - const: misc
+
+ resets:
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port@0:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ description: Input port, connect to a MIPI CSI-2 sensor
+
+ properties:
+ reg:
+ const: 0
+
+ endpoint:
+ $ref: video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ data-lanes:
+ minItems: 1
+ maxItems: 4
+
+ required:
+ - data-lanes
+
+ unevaluatedProperties: false
+
+ port@1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Output port, connect to a CSI controller
+
+ required:
+ - port@0
+ - port@1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - resets
+ - ports
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/sun8i-a83t-ccu.h>
+ #include <dt-bindings/reset/sun8i-a83t-ccu.h>
+
+ mipi_csi2: csi@1cb1000 {
+ compatible = "allwinner,sun8i-a83t-mipi-csi2";
+ reg = <0x01cb1000 0x1000>;
+ interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CSI>,
+ <&ccu CLK_CSI_SCLK>,
+ <&ccu CLK_MIPI_CSI>,
+ <&ccu CLK_CSI_MISC>;
+ clock-names = "bus", "mod", "mipi", "misc";
+ resets = <&ccu RST_BUS_CSI>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mipi_csi2_in: port@0 {
+ reg = <0>;
+
+ mipi_csi2_in_ov8865: endpoint {
+ data-lanes = <1 2 3 4>;
+
+ remote-endpoint = <&ov8865_out_mipi_csi2>;
+ };
+ };
+
+ mipi_csi2_out: port@1 {
+ reg = <1>;
+
+ mipi_csi2_out_csi: endpoint {
+ remote-endpoint = <&csi_in_mipi_csi2>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/media/allwinner,sun8i-h3-deinterlace.yaml b/Documentation/devicetree/bindings/media/allwinner,sun8i-h3-deinterlace.yaml
index b80980b1908e..3ccd52164f5b 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun8i-h3-deinterlace.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun8i-h3-deinterlace.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/allwinner,sun8i-h3-deinterlace.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner H3 Deinterlace Device Tree Bindings
+title: Allwinner H3 Deinterlace
maintainers:
- Jernej Skrabec <jernej.skrabec@siol.net>
diff --git a/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml b/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml
index bee93bd84771..e551be5e680e 100644
--- a/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml
+++ b/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic GE2D Acceleration Unit
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml b/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
index 5044c4bb94e0..b827edabcafa 100644
--- a/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
+++ b/Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Video Decoder
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
- Maxime Jourdan <mjourdan@baylibre.com>
description: |
diff --git a/Documentation/devicetree/bindings/media/amlogic,meson-gx-ao-cec.yaml b/Documentation/devicetree/bindings/media/amlogic,meson-gx-ao-cec.yaml
index d93aea6a0258..8d844f4312d1 100644
--- a/Documentation/devicetree/bindings/media/amlogic,meson-gx-ao-cec.yaml
+++ b/Documentation/devicetree/bindings/media/amlogic,meson-gx-ao-cec.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson AO-CEC Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The Amlogic Meson AO-CEC module is present is Amlogic SoCs and its purpose is
diff --git a/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt b/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt
deleted file mode 100644
index ce9a22689e53..000000000000
--- a/Documentation/devicetree/bindings/media/exynos-jpeg-codec.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-Samsung S5P/Exynos SoC series JPEG codec
-
-Required properties:
-
-- compatible : should be one of:
- "samsung,s5pv210-jpeg", "samsung,exynos4210-jpeg",
- "samsung,exynos3250-jpeg", "samsung,exynos5420-jpeg",
- "samsung,exynos5433-jpeg";
-- reg : address and length of the JPEG codec IP register set;
-- interrupts : specifies the JPEG codec IP interrupt;
-- clock-names : should contain:
- - "jpeg" for the core gate clock,
- - "sclk" for the special clock (optional).
-- clocks : should contain the clock specifier and clock ID list
- matching entries in the clock-names property; from
- the common clock bindings.
diff --git a/Documentation/devicetree/bindings/media/exynos5-gsc.txt b/Documentation/devicetree/bindings/media/exynos5-gsc.txt
deleted file mode 100644
index 1872688fa408..000000000000
--- a/Documentation/devicetree/bindings/media/exynos5-gsc.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-* Samsung Exynos5 G-Scaler device
-
-G-Scaler is used for scaling and color space conversion on Exynos5 SoCs.
-
-Required properties:
-- compatible: should be one of
- "samsung,exynos5250-gsc"
- "samsung,exynos5420-gsc"
- "samsung,exynos5433-gsc"
- "samsung,exynos5-gsc" (deprecated)
-- reg: should contain G-Scaler physical address location and length.
-- interrupts: should contain G-Scaler interrupt number
-
-Optional properties:
-- samsung,sysreg: handle to syscon used to control the system registers to
- set writeback input and destination
-
-Example:
-
-gsc_0: gsc@13e00000 {
- compatible = "samsung,exynos5250-gsc";
- reg = <0x13e00000 0x1000>;
- interrupts = <0 85 0>;
-};
-
-Aliases:
-Each G-Scaler node should have a numbered alias in the aliases node,
-in the form of gscN, N = 0...3. G-Scaler driver uses these aliases
-to retrieve the device IDs using "of_alias_get_id()" call.
-
-Example:
-
-aliases {
- gsc0 =&gsc_0;
- gsc1 =&gsc_1;
- gsc2 =&gsc_2;
- gsc3 =&gsc_3;
-};
diff --git a/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt b/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt
deleted file mode 100644
index 108bf435b933..000000000000
--- a/Documentation/devicetree/bindings/media/gpio-ir-receiver.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Device-Tree bindings for GPIO IR receiver
-
-Required properties:
- - compatible: should be "gpio-ir-receiver".
- - gpios: specifies GPIO used for IR signal reception.
-
-Optional properties:
- - linux,rc-map-name: see rc.txt file in the same
- directory.
- - linux,autosuspend-period: autosuspend delay time,
- the unit is milisecond.
-
-Example node:
-
- ir: ir-receiver {
- compatible = "gpio-ir-receiver";
- gpios = <&gpio0 19 1>;
- linux,rc-map-name = "rc-rc6-mce";
- linux,autosuspend-period = <125>;
- };
diff --git a/Documentation/devicetree/bindings/media/gpio-ir-receiver.yaml b/Documentation/devicetree/bindings/media/gpio-ir-receiver.yaml
new file mode 100644
index 000000000000..61072745b983
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/gpio-ir-receiver.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/gpio-ir-receiver.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO Based IR receiver
+
+maintainers:
+ - Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
+
+allOf:
+ - $ref: rc.yaml#
+
+properties:
+ compatible:
+ const: gpio-ir-receiver
+
+ gpios:
+ maxItems: 1
+
+ linux,autosuspend-period:
+ description: autosuspend delay time in milliseconds
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+required:
+ - compatible
+ - gpios
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ir-receiver {
+ compatible = "gpio-ir-receiver";
+ gpios = <&gpio0 19 1>;
+ linux,rc-map-name = "rc-rc6-mce";
+ linux,autosuspend-period = <125>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/media/i2c/aptina,mt9p031.yaml b/Documentation/devicetree/bindings/media/i2c/aptina,mt9p031.yaml
index c2ba78116dbb..1d6af1bf9a6b 100644
--- a/Documentation/devicetree/bindings/media/i2c/aptina,mt9p031.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/aptina,mt9p031.yaml
@@ -17,6 +17,7 @@ description: |
properties:
compatible:
enum:
+ - aptina,mt9p006
- aptina,mt9p031
- aptina,mt9p031m
diff --git a/Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml b/Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml
new file mode 100644
index 000000000000..b617cc5c6a9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/onnn,ar0521.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/onnn,ar0521.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ON Semiconductor AR0521 MIPI CSI-2 sensor
+
+maintainers:
+ - Krzysztof Hałasa <khalasa@piap.pl>
+
+description: |-
+ The AR0521 is a raw CMOS image sensor with MIPI CSI-2 and
+ I2C-compatible control interface.
+
+properties:
+ compatible:
+ const: onnn,ar0521
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: extclk
+
+ vaa-supply:
+ description:
+ Definition of the regulator used as analog (2.7 V) voltage supply.
+
+ vdd-supply:
+ description:
+ Definition of the regulator used as digital core (1.2 V) voltage supply.
+
+ vdd_io-supply:
+ description:
+ Definition of the regulator used as digital I/O (1.8 V) voltage supply.
+
+ reset-gpios:
+ description: reset GPIO, usually active low
+ maxItems: 1
+
+ port:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: |
+ Video output port.
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ bus-type:
+ const: 4
+ data-lanes:
+ anyOf:
+ - items:
+ - const: 1
+ - items:
+ - const: 1
+ - const: 2
+ - items:
+ - const: 1
+ - const: 2
+ - const: 3
+ - const: 4
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - vaa-supply
+ - vdd-supply
+ - vdd_io-supply
+ - port
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/imx6qdl-clock.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ar0521: camera-sensor@36 {
+ compatible = "onnn,ar0521";
+ reg = <0x36>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mipi_camera>;
+ clocks = <&clks IMX6QDL_CLK_CKO>;
+ clock-names = "extclk";
+ reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+ vaa-supply = <&reg_2p7v>;
+ vdd-supply = <&reg_1p2v>;
+ vdd_io-supply = <&reg_1p8v>;
+
+ port {
+ mipi_camera_to_mipi_csi2: endpoint {
+ remote-endpoint = <&mipi_csi2_in>;
+ data-lanes = <1 2 3 4>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml b/Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml
new file mode 100644
index 000000000000..359dc08440a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ovti,ov5693.yaml
@@ -0,0 +1,124 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2022 Amarulasolutions
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/ovti,ov5693.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Omnivision OV5693 CMOS Sensor
+
+maintainers:
+ - Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
+
+description: |
+ The Omnivision OV5693 is a high performance, 1/4-inch, 5 megapixel, CMOS
+ image sensor that delivers 2592x1944 at 30fps. It provides full-frame,
+ sub-sampled, and windowed 10-bit MIPI images in various formats via the
+ Serial Camera Control Bus (SCCB) interface.
+
+ OV5693 is controlled via I2C and two-wire Serial Camera Control Bus (SCCB).
+ The sensor output is available via CSI-2 serial data output (up to 2-lane).
+
+allOf:
+ - $ref: /schemas/media/video-interface-devices.yaml#
+
+properties:
+ compatible:
+ const: ovti,ov5693
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ System input clock (aka XVCLK). From 6 to 27 MHz.
+ maxItems: 1
+
+ dovdd-supply:
+ description:
+ Digital I/O voltage supply, 1.8V.
+
+ avdd-supply:
+ description:
+ Analog voltage supply, 2.8V.
+
+ dvdd-supply:
+ description:
+ Digital core voltage supply, 1.2V.
+
+ reset-gpios:
+ description:
+ The phandle and specifier for the GPIO that controls sensor reset.
+ This corresponds to the hardware pin XSHUTDN which is physically
+ active low.
+ maxItems: 1
+
+ port:
+ description: MIPI CSI-2 transmitter port
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ additionalProperties: false
+
+ properties:
+ endpoint:
+ $ref: /schemas/media/video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ link-frequencies: true
+
+ data-lanes:
+ minItems: 1
+ maxItems: 2
+
+ required:
+ - data-lanes
+ - link-frequencies
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - port
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/px30-cru.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/pinctrl/rockchip.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ov5693: camera@36 {
+ compatible = "ovti,ov5693";
+ reg = <0x36>;
+
+ reset-gpios = <&gpio2 RK_PB1 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cif_clkout_m0>;
+
+ clocks = <&cru SCLK_CIF_OUT>;
+ assigned-clocks = <&cru SCLK_CIF_OUT>;
+ assigned-clock-rates = <19200000>;
+
+ avdd-supply = <&vcc_1v8>;
+ dvdd-supply = <&vcc_1v2>;
+ dovdd-supply = <&vcc_2v8>;
+
+ rotation = <90>;
+ orientation = <0>;
+
+ port {
+ ucam_out: endpoint {
+ remote-endpoint = <&mipi_in_ucam>;
+ data-lanes = <1 2>;
+ link-frequencies = /bits/ 64 <450000000>;
+ };
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
new file mode 100644
index 000000000000..9cfc0c7d23e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/mediatek,mdp3-rdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Read Direct Memory Access
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - Moudy Ho <moudy.ho@mediatek.com>
+
+description: |
+ MediaTek Read Direct Memory Access(RDMA) component used to do read DMA.
+ It contains one line buffer to store the sufficient pixel data, and
+ must be siblings to the central MMSYS_CONFIG node.
+ For a description of the MMSYS_CONFIG binding, see
+ Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
+ for details.
+
+properties:
+ compatible:
+ items:
+ - const: mediatek,mt8183-mdp3-rdma
+
+ reg:
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ $ref: '/schemas/types.yaml#/definitions/phandle-array'
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ description: The register of client driver can be configured by gce with
+ 4 arguments defined in this property. Each GCE subsys id is mapping to
+ a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+ mediatek,gce-events:
+ description:
+ The event id which is mapping to the specific hardware event signal
+ to gce. The event id is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: RDMA clock
+ - description: RSZ clock
+
+ iommus:
+ maxItems: 1
+
+ mboxes:
+ items:
+ - description: used for 1st data pipe from RDMA
+ - description: used for 2nd data pipe from RDMA
+
+required:
+ - compatible
+ - reg
+ - mediatek,gce-client-reg
+ - mediatek,gce-events
+ - power-domains
+ - clocks
+ - iommus
+ - mboxes
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/gce/mt8183-gce.h>
+ #include <dt-bindings/power/mt8183-power.h>
+ #include <dt-bindings/memory/mt8183-larb-port.h>
+
+ mdp3_rdma0: mdp3-rdma0@14001000 {
+ compatible = "mediatek,mt8183-mdp3-rdma";
+ reg = <0x14001000 0x1000>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x1000 0x1000>;
+ mediatek,gce-events = <CMDQ_EVENT_MDP_RDMA0_SOF>,
+ <CMDQ_EVENT_MDP_RDMA0_EOF>;
+ power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+ clocks = <&mmsys CLK_MM_MDP_RDMA0>,
+ <&mmsys CLK_MM_MDP_RSZ1>;
+ iommus = <&iommu>;
+ mboxes = <&gce 20 CMDQ_THR_PRIO_LOWEST>,
+ <&gce 21 CMDQ_THR_PRIO_LOWEST>;
+ };
diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
new file mode 100644
index 000000000000..78f9de6192ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/mediatek,mdp3-rsz.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Resizer
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - Moudy Ho <moudy.ho@mediatek.com>
+
+description: |
+ One of Media Data Path 3 (MDP3) components used to do frame resizing.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8183-mdp3-rsz
+
+ reg:
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ description: The register of client driver can be configured by gce with
+ 4 arguments defined in this property. Each GCE subsys id is mapping to
+ a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+ mediatek,gce-events:
+ description:
+ The event id which is mapping to the specific hardware event signal
+ to gce. The event id is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ clocks:
+ minItems: 1
+
+required:
+ - compatible
+ - reg
+ - mediatek,gce-client-reg
+ - mediatek,gce-events
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/gce/mt8183-gce.h>
+
+ mdp3_rsz0: mdp3-rsz0@14003000 {
+ compatible = "mediatek,mt8183-mdp3-rsz";
+ reg = <0x14003000 0x1000>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x3000 0x1000>;
+ mediatek,gce-events = <CMDQ_EVENT_MDP_RSZ0_SOF>,
+ <CMDQ_EVENT_MDP_RSZ0_EOF>;
+ clocks = <&mmsys CLK_MM_MDP_RSZ0>;
+ };
+
+ mdp3_rsz1: mdp3-rsz1@14004000 {
+ compatible = "mediatek,mt8183-mdp3-rsz";
+ reg = <0x14004000 0x1000>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x4000 0x1000>;
+ mediatek,gce-events = <CMDQ_EVENT_MDP_RSZ1_SOF>,
+ <CMDQ_EVENT_MDP_RSZ1_EOF>;
+ clocks = <&mmsys CLK_MM_MDP_RSZ1>;
+ };
diff --git a/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml b/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
new file mode 100644
index 000000000000..0baa77198fa2
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/mediatek,mdp3-wrot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Write DMA with Rotation
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - Moudy Ho <moudy.ho@mediatek.com>
+
+description: |
+ One of Media Data Path 3 (MDP3) components used to write DMA with frame rotation.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8183-mdp3-wrot
+
+ reg:
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ description: The register of client driver can be configured by gce with
+ 4 arguments defined in this property. Each GCE subsys id is mapping to
+ a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+ mediatek,gce-events:
+ description:
+ The event id which is mapping to the specific hardware event signal
+ to gce. The event id is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+
+ iommus:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - mediatek,gce-client-reg
+ - mediatek,gce-events
+ - power-domains
+ - clocks
+ - iommus
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/gce/mt8183-gce.h>
+ #include <dt-bindings/power/mt8183-power.h>
+ #include <dt-bindings/memory/mt8183-larb-port.h>
+
+ mdp3_wrot0: mdp3-wrot0@14005000 {
+ compatible = "mediatek,mt8183-mdp3-wrot";
+ reg = <0x14005000 0x1000>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x5000 0x1000>;
+ mediatek,gce-events = <CMDQ_EVENT_MDP_WROT0_SOF>,
+ <CMDQ_EVENT_MDP_WROT0_EOF>;
+ power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+ clocks = <&mmsys CLK_MM_MDP_WROT0>;
+ iommus = <&iommu>;
+ };
diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
index d36fcca04cbc..32aee09aea33 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
@@ -20,6 +20,7 @@ properties:
- mediatek,mt8173-vcodec-enc-vp8
- mediatek,mt8173-vcodec-enc
- mediatek,mt8183-vcodec-enc
+ - mediatek,mt8188-vcodec-enc
- mediatek,mt8192-vcodec-enc
- mediatek,mt8195-vcodec-enc
diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
index 440646e44c0d..c4f20acdc1f8 100644
--- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
@@ -17,20 +17,20 @@ description: |
About the Decoder Hardware Block Diagram, please check below:
- +---------------------------------+------------------------------------+
- | | |
- | input -> lat HW -> lat buffer --|--> lat buffer -> core HW -> output |
- | || | || |
- +------------||-------------------+---------------------||-------------+
- lat workqueue | core workqueue <parent>
- -------------||-----------------------------------------||------------------
- || || <child>
- \/ <----------------HW index-------------->\/
- +------------------------------------------------------+
- | enable/disable |
- | clk power irq iommu |
- | (lat/lat soc/core0/core1) |
- +------------------------------------------------------+
+ +------------------------------------------------+-------------------------------------+
+ | | |
+ | input -> lat soc HW -> lat HW -> lat buffer --|--> lat buffer -> core HW -> output |
+ | || || | || |
+ +------------||-------------||-------------------+---------------------||--------------+
+ || lat || | core workqueue <parent>
+ -------------||-------------||-------------------|---------------------||---------------
+ ||<------------||----------------HW index---------------->|| <child>
+ \/ \/ \/
+ +-------------------------------------------------------------+
+ | enable/disable |
+ | clk power irq iommu |
+ | (lat/lat soc/core0/core1) |
+ +-------------------------------------------------------------+
As above, there are parent and child devices, child mean each hardware. The child device
controls the information of each hardware independent which include clk/power/irq.
@@ -45,11 +45,20 @@ description: |
For the smi common may not the same for each hardware, can't combine all hardware in one node,
or leading to iommu fault when access dram data.
+ Lat soc is a hardware which is related with some larb(local arbiter) ports. For mt8195
+ platform, there are some ports like RDMA, UFO in lat soc larb, need to enable its power and
+ clock when lat start to work, don't have interrupt.
+
+ mt8195: lat soc HW + lat HW + core HW
+ mt8192: lat HW + core HW
+
properties:
compatible:
enum:
- mediatek,mt8192-vcodec-dec
- mediatek,mt8186-vcodec-dec
+ - mediatek,mt8188-vcodec-dec
+ - mediatek,mt8195-vcodec-dec
reg:
maxItems: 1
@@ -87,7 +96,9 @@ patternProperties:
properties:
compatible:
- const: mediatek,mtk-vcodec-lat
+ enum:
+ - mediatek,mtk-vcodec-lat
+ - mediatek,mtk-vcodec-lat-soc
reg:
maxItems: 1
@@ -125,7 +136,6 @@ patternProperties:
required:
- compatible
- reg
- - interrupts
- iommus
- clocks
- clock-names
@@ -196,6 +206,17 @@ required:
- dma-ranges
- ranges
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mtk-vcodec-lat
+
+then:
+ required:
+ - interrupts
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml
index 052e752157b4..5e8d001492cc 100644
--- a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/mediatek-jpeg-decoder.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek JPEG Decoder Device Tree Bindings
+title: MediaTek JPEG Decoder
maintainers:
- Xia Jiang <xia.jiang@mediatek.com>
diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
index 8bfdfdfaba59..fc727300b493 100644
--- a/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-encoder.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/mediatek-jpeg-encoder.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek JPEG Encoder Device Tree Bindings
+title: MediaTek JPEG Encoder
maintainers:
- Xia Jiang <xia.jiang@mediatek.com>
@@ -18,6 +18,7 @@ properties:
- enum:
- mediatek,mt2701-jpgenc
- mediatek,mt8183-jpgenc
+ - mediatek,mt8186-jpgenc
- const: mediatek,mtk-jpgenc
reg:
maxItems: 1
@@ -42,6 +43,11 @@ properties:
Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
Ports are according to the HW.
+ dma-ranges:
+ maxItems: 1
+ description: |
+ Describes the physical address space of IOMMU maps to memory.
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/media/microchip,csi2dc.yaml b/Documentation/devicetree/bindings/media/microchip,csi2dc.yaml
index e8544fb2d034..b3a345fc6464 100644
--- a/Documentation/devicetree/bindings/media/microchip,csi2dc.yaml
+++ b/Documentation/devicetree/bindings/media/microchip,csi2dc.yaml
@@ -75,6 +75,7 @@ properties:
properties:
port@0:
$ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description:
Input port node, single endpoint describing the input port.
@@ -103,6 +104,7 @@ properties:
port@1:
$ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
description:
Output port node, single endpoint describing the output port.
diff --git a/Documentation/devicetree/bindings/media/nxp,dw100.yaml b/Documentation/devicetree/bindings/media/nxp,dw100.yaml
new file mode 100644
index 000000000000..21910ff0e1c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/nxp,dw100.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/nxp,dw100.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8MP DW100 Dewarper core
+
+maintainers:
+ - Xavier Roumegue <xavier.roumegue@oss.nxp.com>
+
+description: |-
+ The Dewarp Engine provides high-performance dewarp processing for the
+ correction of the distortion that is introduced in images produced by fisheye
+ and wide angle lenses. It is implemented with a line/tile-cache based
+ architecture. With configurable address mapping look up tables and per tile
+ processing, it successfully generates a corrected output image.
+ The engine can be used to perform scaling, cropping and pixel format
+ conversion.
+
+properties:
+ compatible:
+ enum:
+ - nxp,imx8mp-dw100
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: The AXI clock
+ - description: The AHB clock
+
+ clock-names:
+ items:
+ - const: axi
+ - const: ahb
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8mp-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/imx8mp-power.h>
+
+ dewarp: dwe@32e30000 {
+ compatible = "nxp,imx8mp-dw100";
+ reg = <0x32e30000 0x10000>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MP_CLK_MEDIA_AXI_ROOT>,
+ <&clk IMX8MP_CLK_MEDIA_APB_ROOT>;
+ clock-names = "axi", "ahb";
+ power-domains = <&media_blk_ctrl IMX8MP_MEDIABLK_PD_DWE>;
+ };
diff --git a/Documentation/devicetree/bindings/media/nxp,imx-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/nxp,imx-mipi-csi2.yaml
index 36b135bf9f2a..03a23a26c4f3 100644
--- a/Documentation/devicetree/bindings/media/nxp,imx-mipi-csi2.yaml
+++ b/Documentation/devicetree/bindings/media/nxp,imx-mipi-csi2.yaml
@@ -22,9 +22,14 @@ description: |-
properties:
compatible:
- enum:
- - fsl,imx7-mipi-csi2
- - fsl,imx8mm-mipi-csi2
+ oneOf:
+ - enum:
+ - fsl,imx7-mipi-csi2
+ - fsl,imx8mm-mipi-csi2
+ - items:
+ - enum:
+ - fsl,imx8mp-mipi-csi2
+ - const: fsl,imx8mm-mipi-csi2
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
index 3cc6f42aeb76..3d9d1db37040 100644
--- a/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
+++ b/Documentation/devicetree/bindings/media/nxp,imx8-jpeg.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/nxp,imx8-jpeg.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: i.MX8QXP/QM JPEG decoder/encoder Device Tree Bindings
+title: i.MX8QXP/QM JPEG decoder/encoder
maintainers:
- Mirela Rabulea <mirela.rabulea@nxp.com>
diff --git a/Documentation/devicetree/bindings/media/qcom,msm8916-venus.yaml b/Documentation/devicetree/bindings/media/qcom,msm8916-venus.yaml
index 59ab16ad12f1..2abb7d21c0d1 100644
--- a/Documentation/devicetree/bindings/media/qcom,msm8916-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,msm8916-venus.yaml
@@ -68,6 +68,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,msm8996-venus.yaml b/Documentation/devicetree/bindings/media/qcom,msm8996-venus.yaml
index 199f45217b4a..29d0cb6c6ebe 100644
--- a/Documentation/devicetree/bindings/media/qcom,msm8996-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,msm8996-venus.yaml
@@ -95,6 +95,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
index 90b4af2c9724..42ee3f06c6be 100644
--- a/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sc7180-venus.yaml
@@ -86,6 +86,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml
index e2874683b4d5..cf361dd9de08 100644
--- a/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sc7280-venus.yaml
@@ -86,6 +86,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,sdm660-camss.yaml b/Documentation/devicetree/bindings/media/qcom,sdm660-camss.yaml
index 338ab28d5f3b..b28c8e17f158 100644
--- a/Documentation/devicetree/bindings/media/qcom,sdm660-camss.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sdm660-camss.yaml
@@ -84,6 +84,13 @@ properties:
- const: vfe0
- const: vfe1
+ interconnects:
+ maxItems: 1
+
+ interconnect-names:
+ items:
+ - const: vfe-mem
+
iommus:
maxItems: 4
diff --git a/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml
index 33da7d3cfd38..45e3f58f52bd 100644
--- a/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sdm660-venus.yaml
@@ -104,6 +104,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml b/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
index 177bf81544b1..8edc8a2f43a5 100644
--- a/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sdm845-venus-v2.yaml
@@ -81,6 +81,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,sdm845-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sdm845-venus.yaml
index 680f37726fdf..57d503373efe 100644
--- a/Documentation/devicetree/bindings/media/qcom,sdm845-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sdm845-venus.yaml
@@ -96,6 +96,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/qcom,sm8250-venus.yaml b/Documentation/devicetree/bindings/media/qcom,sm8250-venus.yaml
index ebf8f3d866a5..4b7a12523dcf 100644
--- a/Documentation/devicetree/bindings/media/qcom,sm8250-venus.yaml
+++ b/Documentation/devicetree/bindings/media/qcom,sm8250-venus.yaml
@@ -92,6 +92,7 @@ properties:
video-firmware:
type: object
+ additionalProperties: false
description: |
Firmware subnode is needed when the platform does not
diff --git a/Documentation/devicetree/bindings/media/rc.yaml b/Documentation/devicetree/bindings/media/rc.yaml
index d4c541c4b164..e732b7f3a635 100644
--- a/Documentation/devicetree/bindings/media/rc.yaml
+++ b/Documentation/devicetree/bindings/media/rc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/rc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Generic Infrared Remote Controller Device Tree Bindings
+title: Generic Infrared Remote Controller
maintainers:
- Mauro Carvalho Chehab <mchehab@kernel.org>
@@ -12,7 +12,7 @@ maintainers:
properties:
$nodename:
- pattern: "^ir(@[a-f0-9]+)?$"
+ pattern: "^ir(-receiver)?(@[a-f0-9]+)?$"
linux,rc-map-name:
description:
diff --git a/Documentation/devicetree/bindings/media/renesas,vsp1.yaml b/Documentation/devicetree/bindings/media/renesas,vsp1.yaml
index 990e9c1dbc43..7a8f32473852 100644
--- a/Documentation/devicetree/bindings/media/renesas,vsp1.yaml
+++ b/Documentation/devicetree/bindings/media/renesas,vsp1.yaml
@@ -17,6 +17,7 @@ description:
properties:
compatible:
enum:
+ - renesas,r9a07g044-vsp2 # RZ/G2L
- renesas,vsp1 # R-Car Gen2 and RZ/G1
- renesas,vsp2 # R-Car Gen3 and RZ/G2
@@ -26,8 +27,8 @@ properties:
interrupts:
maxItems: 1
- clocks:
- maxItems: 1
+ clocks: true
+ clock-names: true
power-domains:
maxItems: 1
@@ -50,17 +51,43 @@ required:
additionalProperties: false
-if:
- properties:
- compatible:
- items:
- - const: renesas,vsp1
-then:
- properties:
- renesas,fcp: false
-else:
- required:
- - renesas,fcp
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,vsp1
+ then:
+ properties:
+ renesas,fcp: false
+ else:
+ required:
+ - renesas,fcp
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,r9a07g044-vsp2
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Main clock
+ - description: Register access clock
+ - description: Video clock
+ clock-names:
+ items:
+ - const: aclk
+ - const: pclk
+ - const: vclk
+ required:
+ - clock-names
+ else:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names: false
examples:
# R8A7790 (R-Car H2) VSP1-S
diff --git a/Documentation/devicetree/bindings/media/rockchip,rk3568-vepu.yaml b/Documentation/devicetree/bindings/media/rockchip,rk3568-vepu.yaml
new file mode 100644
index 000000000000..81b26eb4cd35
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/rockchip,rk3568-vepu.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/media/rockchip,rk3568-vepu.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Hantro G1 VPU encoders implemented on Rockchip SoCs
+
+maintainers:
+ - Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
+
+description:
+ Hantro G1 video encode-only accelerators present on Rockchip SoCs.
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3568-vepu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: aclk
+ - const: hclk
+
+ power-domains:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3568-cru.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/rk3568-power.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ vepu: video-codec@fdee0000 {
+ compatible = "rockchip,rk3568-vepu";
+ reg = <0x0 0xfdee0000 0x0 0x800>;
+ interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru ACLK_JENC>, <&cru HCLK_JENC>;
+ clock-names = "aclk", "hclk";
+ iommus = <&vepu_mmu>;
+ power-domains = <&power RK3568_PD_RGA>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/media/rockchip,vdec.yaml b/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
index 3bcfb8e12333..08b02ec16755 100644
--- a/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
+++ b/Documentation/devicetree/bindings/media/rockchip,vdec.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/rockchip,vdec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip Video Decoder (VDec) Device Tree Bindings
+title: Rockchip Video Decoder (VDec)
maintainers:
- Heiko Stuebner <heiko@sntech.de>
diff --git a/Documentation/devicetree/bindings/media/rockchip-isp1.yaml b/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
index d1489b177331..b3661d7d4357 100644
--- a/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
+++ b/Documentation/devicetree/bindings/media/rockchip-isp1.yaml
@@ -84,8 +84,27 @@ properties:
minItems: 1
maxItems: 4
- required:
- - port@0
+ port@1:
+ $ref: /schemas/graph.yaml#/$defs/port-base
+ unevaluatedProperties: false
+ description: connection point for input on the parallel interface
+
+ properties:
+ bus-type:
+ enum: [5, 6]
+
+ endpoint:
+ $ref: video-interfaces.yaml#
+ unevaluatedProperties: false
+
+ required:
+ - bus-type
+
+ anyOf:
+ - required:
+ - port@0
+ - required:
+ - port@1
required:
- compatible
diff --git a/Documentation/devicetree/bindings/media/samsung,exynos5250-gsc.yaml b/Documentation/devicetree/bindings/media/samsung,exynos5250-gsc.yaml
new file mode 100644
index 000000000000..878397830a4d
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/samsung,exynos5250-gsc.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/samsung,exynos5250-gsc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC G-Scaler
+
+maintainers:
+ - Inki Dae <inki.dae@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+ - Seung-Woo Kim <sw0312.kim@samsung.com
+
+description:
+ G-Scaler is used for scaling and color space conversion on Samsung Exynos
+ SoCs.
+
+ Each G-Scaler node should have a numbered alias in the aliases node, in the
+ form of gscN, N = 0...3.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - samsung,exynos5250-gsc
+ - samsung,exynos5420-gsc
+ - const: samsung,exynos5-gsc
+ - enum:
+ - samsung,exynos5433-gsc
+ - const: samsung,exynos5-gsc
+ deprecated: True
+
+ clocks:
+ minItems: 1
+ maxItems: 5
+
+ clock-names:
+ minItems: 1
+ maxItems: 5
+
+ interrupts:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ samsung,sysreg:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Syscon used to control the system registers to set writeback input and destination.
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - interrupts
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos5-gsc
+ - samsung,exynos5250-gsc
+ - samsung,exynos5420-gsc
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: gscl
+ else:
+ properties:
+ clocks:
+ minItems: 5
+ clock-names:
+ items:
+ - const: pclk
+ - const: aclk
+ - const: aclk_xiu
+ - const: aclk_gsclbend
+ - const: gsd
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5250.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ video-scaler@13e00000 {
+ compatible = "samsung,exynos5250-gsc", "samsung,exynos5-gsc";
+ reg = <0x13e00000 0x1000>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&pd_gsc>;
+ clocks = <&clock CLK_GSCL0>;
+ clock-names = "gscl";
+ iommus = <&sysmmu_gsc0>;
+ };
diff --git a/Documentation/devicetree/bindings/media/samsung,s5pv210-jpeg.yaml b/Documentation/devicetree/bindings/media/samsung,s5pv210-jpeg.yaml
new file mode 100644
index 000000000000..e28d6ec56c0b
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/samsung,s5pv210-jpeg.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/samsung,s5pv210-jpeg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S5PV210 and Exynos SoC JPEG codec
+
+maintainers:
+ - Jacek Anaszewski <jacek.anaszewski@gmail.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+ - Sylwester Nawrocki <s.nawrocki@samsung.com>
+ - Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - samsung,s5pv210-jpeg
+ - samsung,exynos3250-jpeg
+ - samsung,exynos4210-jpeg
+ - samsung,exynos4212-jpeg
+ - samsung,exynos5420-jpeg
+ - samsung,exynos5433-jpeg
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+
+ interrupts:
+ maxItems: 1
+
+ iommus:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - interrupts
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,s5pv210-jpeg
+ - samsung,exynos4210-jpeg
+ - samsung,exynos4212-jpeg
+ - samsung,exynos5420-jpeg
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: jpeg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos3250-jpeg
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ maxItems: 2
+ clock-names:
+ items:
+ - const: jpeg
+ - const: sclk
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos5433-jpeg
+ then:
+ properties:
+ clocks:
+ minItems: 4
+ maxItems: 4
+ clock-names:
+ items:
+ - const: pclk
+ - const: aclk
+ - const: aclk_xiu
+ - const: sclk
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5433.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ codec@15020000 {
+ compatible = "samsung,exynos5433-jpeg";
+ reg = <0x15020000 0x10000>;
+ interrupts = <GIC_SPI 411 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "pclk", "aclk", "aclk_xiu", "sclk";
+ clocks = <&cmu_mscl CLK_PCLK_JPEG>,
+ <&cmu_mscl CLK_ACLK_JPEG>,
+ <&cmu_mscl CLK_ACLK_XIU_MSCLX>,
+ <&cmu_mscl CLK_SCLK_JPEG>;
+ iommus = <&sysmmu_jpeg>;
+ power-domains = <&pd_mscl>;
+ };
diff --git a/Documentation/devicetree/bindings/media/ti,cal.yaml b/Documentation/devicetree/bindings/media/ti,cal.yaml
index 7e078424ca4d..f8e4d260d10a 100644
--- a/Documentation/devicetree/bindings/media/ti,cal.yaml
+++ b/Documentation/devicetree/bindings/media/ti,cal.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/ti,cal.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Texas Instruments DRA72x CAMERA ADAPTATION LAYER (CAL) Device Tree Bindings
+title: Texas Instruments DRA72x CAMERA ADAPTATION LAYER (CAL)
maintainers:
- Benoit Parrot <bparrot@ti.com>
diff --git a/Documentation/devicetree/bindings/media/ti,vpe.yaml b/Documentation/devicetree/bindings/media/ti,vpe.yaml
index ef473f287399..7fa8a367ed22 100644
--- a/Documentation/devicetree/bindings/media/ti,vpe.yaml
+++ b/Documentation/devicetree/bindings/media/ti,vpe.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/media/ti,vpe.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Texas Instruments DRA7x Video Processing Engine (VPE) Device Tree Bindings
+title: Texas Instruments DRA7x Video Processing Engine (VPE)
maintainers:
- Benoit Parrot <bparrot@ti.com>
diff --git a/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml
new file mode 100644
index 000000000000..4b072c879b02
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/brcm,brcmstb-memc-ddr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Memory controller (MEMC) for Broadcom STB
+
+maintainers:
+ - Florian Fainelli <f.fainelli@gmail.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - brcm,brcmstb-memc-ddr-rev-b.1.x
+ - brcm,brcmstb-memc-ddr-rev-b.2.0
+ - brcm,brcmstb-memc-ddr-rev-b.2.1
+ - brcm,brcmstb-memc-ddr-rev-b.2.2
+ - brcm,brcmstb-memc-ddr-rev-b.2.3
+ - brcm,brcmstb-memc-ddr-rev-b.2.5
+ - brcm,brcmstb-memc-ddr-rev-b.2.6
+ - brcm,brcmstb-memc-ddr-rev-b.2.7
+ - brcm,brcmstb-memc-ddr-rev-b.2.8
+ - brcm,brcmstb-memc-ddr-rev-b.3.0
+ - brcm,brcmstb-memc-ddr-rev-b.3.1
+ - brcm,brcmstb-memc-ddr-rev-c.1.0
+ - brcm,brcmstb-memc-ddr-rev-c.1.1
+ - brcm,brcmstb-memc-ddr-rev-c.1.2
+ - brcm,brcmstb-memc-ddr-rev-c.1.3
+ - brcm,brcmstb-memc-ddr-rev-c.1.4
+ - const: brcm,brcmstb-memc-ddr
+
+ reg:
+ maxItems: 1
+
+ clock-frequency:
+ description: DDR PHY frequency in Hz
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ memory-controller@9902000 {
+ compatible = "brcm,brcmstb-memc-ddr-rev-c.1.1", "brcm,brcmstb-memc-ddr";
+ reg = <0x9902000 0x600>;
+ clock-frequency = <2133000000>;
+ };
diff --git a/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
new file mode 100644
index 000000000000..f81fb866e319
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/canaan,k210-sram.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Canaan K210 SRAM memory controller
+
+description:
+ The Canaan K210 SRAM memory controller is responsible for the system's 8 MiB
+ of SRAM. The controller is initialised by the bootloader, which configures
+ its clocks, before OS bringup.
+
+maintainers:
+ - Conor Dooley <conor@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - canaan,k210-sram
+
+ clocks:
+ minItems: 1
+ items:
+ - description: sram0 clock
+ - description: sram1 clock
+ - description: aisram clock
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: sram0
+ - const: sram1
+ - const: aisram
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/k210-clk.h>
+ memory-controller {
+ compatible = "canaan,k210-sram";
+ clocks = <&sysclk K210_CLK_SRAM0>,
+ <&sysclk K210_CLK_SRAM1>,
+ <&sysclk K210_CLK_AI>;
+ clock-names = "sram0", "sram1", "aisram";
+ };
diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
index 445e46feda69..519b123116dc 100644
--- a/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/imx8m-ddrc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: i.MX8M DDR Controller
maintainers:
- - Leonard Crestez <leonard.crestez@nxp.com>
+ - Peng Fan <peng.fan@nxp.com>
description:
The DDRC block is integrated in i.MX8M for interfacing with DDR based
@@ -47,7 +47,8 @@ properties:
- const: apb
operating-points-v2: true
- opp-table: true
+ opp-table:
+ type: object
required:
- reg
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml
index 85e02854f083..6ccdaf99c778 100644
--- a/Documentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,mt7621-memc.yaml
@@ -11,7 +11,9 @@ maintainers:
properties:
compatible:
- const: mediatek,mt7621-memc
+ items:
+ - const: mediatek,mt7621-memc
+ - const: syscon
reg:
maxItems: 1
@@ -25,6 +27,6 @@ additionalProperties: false
examples:
- |
memory-controller@5000 {
- compatible = "mediatek,mt7621-memc";
+ compatible = "mediatek,mt7621-memc", "syscon";
reg = <0x5000 0x1000>;
};
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
index a98b359bf909..a8fda30cccbb 100644
--- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
@@ -16,7 +16,7 @@ description: |
MediaTek SMI have two generations of HW architecture, here is the list
which generation the SoCs use:
generation 1: mt2701 and mt7623.
- generation 2: mt2712, mt6779, mt8167, mt8173, mt8183, mt8186, mt8192 and mt8195.
+ generation 2: mt2712, mt6779, mt8167, mt8173, mt8183, mt8186, mt8188, mt8192 and mt8195.
There's slight differences between the two SMI, for generation 2, the
register which control the iommu port is at each larb's register base. But
@@ -32,10 +32,13 @@ properties:
- mediatek,mt2701-smi-common
- mediatek,mt2712-smi-common
- mediatek,mt6779-smi-common
+ - mediatek,mt6795-smi-common
- mediatek,mt8167-smi-common
- mediatek,mt8173-smi-common
- mediatek,mt8183-smi-common
- mediatek,mt8186-smi-common
+ - mediatek,mt8188-smi-common-vdo
+ - mediatek,mt8188-smi-common-vpp
- mediatek,mt8192-smi-common
- mediatek,mt8195-smi-common-vdo
- mediatek,mt8195-smi-common-vpp
@@ -143,7 +146,16 @@ allOf:
- const: gals0
- const: gals1
- else: # for gen2 HW that don't have gals
+ - if: # for gen2 HW that don't have gals
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt2712-smi-common
+ - mediatek,mt6795-smi-common
+ - mediatek,mt8167-smi-common
+ - mediatek,mt8173-smi-common
+
+ then:
properties:
clocks:
minItems: 2
diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml
index c886681f62a7..5f4ac3609887 100644
--- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml
@@ -20,10 +20,12 @@ properties:
- mediatek,mt2701-smi-larb
- mediatek,mt2712-smi-larb
- mediatek,mt6779-smi-larb
+ - mediatek,mt6795-smi-larb
- mediatek,mt8167-smi-larb
- mediatek,mt8173-smi-larb
- mediatek,mt8183-smi-larb
- mediatek,mt8186-smi-larb
+ - mediatek,mt8188-smi-larb
- mediatek,mt8192-smi-larb
- mediatek,mt8195-smi-larb
@@ -77,6 +79,7 @@ allOf:
enum:
- mediatek,mt8183-smi-larb
- mediatek,mt8186-smi-larb
+ - mediatek,mt8188-smi-larb
- mediatek,mt8195-smi-larb
then:
@@ -110,6 +113,7 @@ allOf:
- mediatek,mt2712-smi-larb
- mediatek,mt6779-smi-larb
- mediatek,mt8186-smi-larb
+ - mediatek,mt8188-smi-larb
- mediatek,mt8192-smi-larb
- mediatek,mt8195-smi-larb
diff --git a/Documentation/devicetree/bindings/memory-controllers/snps,dw-umctl2-ddrc.yaml b/Documentation/devicetree/bindings/memory-controllers/snps,dw-umctl2-ddrc.yaml
new file mode 100644
index 000000000000..e68c4306025a
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/snps,dw-umctl2-ddrc.yaml
@@ -0,0 +1,118 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/snps,dw-umctl2-ddrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare Universal Multi-Protocol Memory Controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+ - Manish Narani <manish.narani@xilinx.com>
+ - Michal Simek <michal.simek@xilinx.com>
+
+description: |
+ Synopsys DesignWare Enhanced uMCTL2 DDR Memory Controller is capable of
+ working with the memory devices supporting up to (LP)DDR4 protocol. It can
+ be equipped with SEC/DEC ECC feature if DRAM data bus width is either
+ 16-bits or 32-bits or 64-bits wide.
+
+ For instance the ZynqMP DDR controller is based on the DW uMCTL2 v2.40a
+ controller. It has an optional SEC/DEC ECC support in 64- and 32-bits
+ bus width configurations.
+
+properties:
+ compatible:
+ oneOf:
+ - deprecated: true
+ description: Synopsys DW uMCTL2 DDR controller v3.80a
+ const: snps,ddrc-3.80a
+ - description: Synopsys DW uMCTL2 DDR controller
+ const: snps,dw-umctl2-ddrc
+ - description: Xilinx ZynqMP DDR controller v2.40a
+ const: xlnx,zynqmp-ddrc-2.40a
+
+ interrupts:
+ description:
+ DW uMCTL2 DDRC IP-core provides individual IRQ signal for each event":"
+ ECC Corrected Error, ECC Uncorrected Error, ECC Address Protection,
+ Scrubber-Done signal, DFI Parity/CRC Error. Some platforms may have the
+ signals merged before they reach the IRQ controller or have some of them
+ absent in case if the corresponding feature is unavailable/disabled.
+ minItems: 1
+ maxItems: 5
+
+ interrupt-names:
+ minItems: 1
+ maxItems: 5
+ oneOf:
+ - description: Common ECC CE/UE/Scrubber/DFI Errors IRQ
+ items:
+ - const: ecc
+ - description: Individual ECC CE/UE/Scrubber/DFI Errors IRQs
+ items:
+ enum: [ ecc_ce, ecc_ue, ecc_ap, ecc_sbr, dfi_e ]
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description:
+ A standard set of the clock sources contains CSRs bus clock, AXI-ports
+ reference clock, DDRC core clock, Scrubber standalone clock
+ (synchronous to the DDRC clock).
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+ items:
+ enum: [ pclk, aclk, core, sbr ]
+
+ resets:
+ description:
+ Each clock domain can have separate reset signal.
+ minItems: 1
+ maxItems: 4
+
+ reset-names:
+ minItems: 1
+ maxItems: 4
+ items:
+ enum: [ prst, arst, core, sbr ]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ memory-controller@fd070000 {
+ compatible = "xlnx,zynqmp-ddrc-2.40a";
+ reg = <0xfd070000 0x30000>;
+
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ecc";
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ memory-controller@3d400000 {
+ compatible = "snps,dw-umctl2-ddrc";
+ reg = <0x3d400000 0x400000>;
+
+ interrupts = <147 IRQ_TYPE_LEVEL_HIGH>, <148 IRQ_TYPE_LEVEL_HIGH>,
+ <149 IRQ_TYPE_LEVEL_HIGH>, <150 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "ecc_ce", "ecc_ue", "ecc_sbr", "dfi_e";
+
+ clocks = <&pclk>, <&aclk>, <&core_clk>, <&sbr_clk>;
+ clock-names = "pclk", "aclk", "core", "sbr";
+ };
+...
diff --git a/Documentation/devicetree/bindings/memory-controllers/synopsys,ddrc-ecc.yaml b/Documentation/devicetree/bindings/memory-controllers/synopsys,ddrc-ecc.yaml
deleted file mode 100644
index f46e95704f53..000000000000
--- a/Documentation/devicetree/bindings/memory-controllers/synopsys,ddrc-ecc.yaml
+++ /dev/null
@@ -1,76 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/memory-controllers/synopsys,ddrc-ecc.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Synopsys IntelliDDR Multi Protocol memory controller
-
-maintainers:
- - Krzysztof Kozlowski <krzk@kernel.org>
- - Manish Narani <manish.narani@xilinx.com>
- - Michal Simek <michal.simek@xilinx.com>
-
-description: |
- The ZynqMP DDR ECC controller has an optional ECC support in 64-bit and
- 32-bit bus width configurations.
-
- The Zynq DDR ECC controller has an optional ECC support in half-bus width
- (16-bit) configuration.
-
- These both ECC controllers correct single bit ECC errors and detect double bit
- ECC errors.
-
-properties:
- compatible:
- enum:
- - snps,ddrc-3.80a
- - xlnx,zynq-ddrc-a05
- - xlnx,zynqmp-ddrc-2.40a
-
- interrupts:
- maxItems: 1
-
- reg:
- maxItems: 1
-
-required:
- - compatible
- - reg
-
-allOf:
- - if:
- properties:
- compatible:
- contains:
- enum:
- - snps,ddrc-3.80a
- - xlnx,zynqmp-ddrc-2.40a
- then:
- required:
- - interrupts
- else:
- properties:
- interrupts: false
-
-additionalProperties: false
-
-examples:
- - |
- memory-controller@f8006000 {
- compatible = "xlnx,zynq-ddrc-a05";
- reg = <0xf8006000 0x1000>;
- };
-
- - |
- axi {
- #address-cells = <2>;
- #size-cells = <2>;
-
- memory-controller@fd070000 {
- compatible = "xlnx,zynqmp-ddrc-2.40a";
- reg = <0x0 0xfd070000 0x0 0x30000>;
- interrupt-parent = <&gic>;
- interrupts = <0 112 4>;
- };
- };
diff --git a/Documentation/devicetree/bindings/memory-controllers/xlnx,zynq-ddrc-a05.yaml b/Documentation/devicetree/bindings/memory-controllers/xlnx,zynq-ddrc-a05.yaml
new file mode 100644
index 000000000000..8f72e2f8588a
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/xlnx,zynq-ddrc-a05.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/xlnx,zynq-ddrc-a05.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Zynq A05 DDR Memory Controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+ - Manish Narani <manish.narani@xilinx.com>
+ - Michal Simek <michal.simek@xilinx.com>
+
+description:
+ The Zynq DDR ECC controller has an optional ECC support in half-bus width
+ (16-bit) configuration. It is cappable of correcting single bit ECC errors
+ and detecting double bit ECC errors.
+
+properties:
+ compatible:
+ const: xlnx,zynq-ddrc-a05
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ memory-controller@f8006000 {
+ compatible = "xlnx,zynq-ddrc-a05";
+ reg = <0xf8006000 0x1000>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml
index f591332fc462..93f5065a6280 100644
--- a/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml
+++ b/Documentation/devicetree/bindings/mfd/allwinner,sun4i-a10-ts.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/allwinner,sun4i-a10-ts.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Resistive Touchscreen Controller Device Tree Bindings
+title: Allwinner A10 Resistive Touchscreen Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
index d131759ccaf3..cf94176fe1eb 100644
--- a/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
+++ b/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/allwinner,sun6i-a31-prcm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 PRCM Device Tree Bindings
+title: Allwinner A31 PRCM
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -22,6 +22,7 @@ properties:
patternProperties:
"^.*_(clk|rst)$":
type: object
+ unevaluatedProperties: false
properties:
compatible:
@@ -38,6 +39,45 @@ patternProperties:
properties:
compatible:
contains:
+ const: fixed-factor-clock
+
+ then:
+ $ref: /schemas/clock/fixed-factor-clock.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: allwinner,sun4i-a10-mod0-clk
+
+ then:
+ properties:
+ "#clock-cells":
+ const: 0
+
+ # Already checked in the main schema
+ compatible: true
+
+ clocks:
+ maxItems: 2
+
+ clock-output-names:
+ maxItems: 1
+
+ phandle: true
+
+ required:
+ - "#clock-cells"
+ - compatible
+ - clocks
+ - clock-output-names
+
+ additionalProperties: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: allwinner,sun6i-a31-apb0-clk
then:
diff --git a/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml b/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml
index aa5e683b236c..16c80a7eec49 100644
--- a/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml
+++ b/Documentation/devicetree/bindings/mfd/allwinner,sun8i-a23-prcm.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/allwinner,sun8i-a23-prcm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A23 PRCM Device Tree Bindings
+title: Allwinner A23 PRCM
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -22,6 +22,7 @@ properties:
patternProperties:
"^.*(clk|rst|codec).*$":
type: object
+ unevaluatedProperties: false
properties:
compatible:
@@ -40,6 +41,15 @@ patternProperties:
properties:
compatible:
contains:
+ const: fixed-factor-clock
+
+ then:
+ $ref: /schemas/clock/fixed-factor-clock.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: allwinner,sun8i-a23-apb0-clk
then:
diff --git a/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml b/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
new file mode 100644
index 000000000000..1689b986f441
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/aspeed,ast2x00-scu.yaml
@@ -0,0 +1,110 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/aspeed,ast2x00-scu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed System Control Unit
+
+description:
+ The Aspeed System Control Unit manages the global behaviour of the SoC,
+ configuring elements such as clocks, pinmux, and reset.
+
+maintainers:
+ - Joel Stanley <joel@jms.id.au>
+ - Andrew Jeffery <andrew@aj.id.au>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - aspeed,ast2400-scu
+ - aspeed,ast2500-scu
+ - aspeed,ast2600-scu
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ '#clock-cells':
+ const: 1
+
+ '#reset-cells':
+ const: 1
+
+patternProperties:
+ '^p2a-control@[0-9a-f]+$':
+ description: See Documentation/devicetree/bindings/misc/aspeed-p2a-ctrl.txt
+ type: object
+
+ '^pinctrl(@[0-9a-f]+)?$':
+ oneOf:
+ - $ref: /schemas/pinctrl/aspeed,ast2400-pinctrl.yaml
+ - $ref: /schemas/pinctrl/aspeed,ast2500-pinctrl.yaml
+ - $ref: /schemas/pinctrl/aspeed,ast2600-pinctrl.yaml
+
+ '^interrupt-controller@[0-9a-f]+$':
+ description: See Documentation/devicetree/bindings/interrupt-controller/aspeed,ast2xxx-scu-ic.txt
+ type: object
+
+ '^silicon-id@[0-9a-f]+$':
+ description: Unique hardware silicon identifiers within the SoC
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ items:
+ - enum:
+ - aspeed,ast2400-silicon-id
+ - aspeed,ast2500-silicon-id
+ - aspeed,ast2600-silicon-id
+ - const: aspeed,silicon-id
+
+ reg:
+ description:
+ The reg should be the unique silicon id register, and not backwards
+ compatible one in eg. the 2600.
+ minItems: 1
+ items:
+ - description: silicon id information registers
+ - description: unique chip id registers
+
+required:
+ - compatible
+ - reg
+ - ranges
+ - '#address-cells'
+ - '#size-cells'
+ - '#clock-cells'
+ - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@1e6e2000 {
+ compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
+ reg = <0x1e6e2000 0x1a8>;
+ #clock-cells = <1>;
+ #reset-cells = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x1e6e2000 0x1000>;
+
+ silicon-id@7c {
+ compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id";
+ reg = <0x7c 0x4>, <0x150 0x8>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt b/Documentation/devicetree/bindings/mfd/aspeed-scu.txt
deleted file mode 100644
index 857ee33f7329..000000000000
--- a/Documentation/devicetree/bindings/mfd/aspeed-scu.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-The Aspeed System Control Unit manages the global behaviour of the SoC,
-configuring elements such as clocks, pinmux, and reset.
-
-Required properties:
-- compatible: One of:
- "aspeed,ast2400-scu", "syscon", "simple-mfd"
- "aspeed,ast2500-scu", "syscon", "simple-mfd"
-
-- reg: contains the offset and length of the SCU memory region
-- #clock-cells: should be set to <1> - the system controller is also a
- clock provider
-- #reset-cells: should be set to <1> - the system controller is also a
- reset line provider
-
-Example:
-
-syscon: syscon@1e6e2000 {
- compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd";
- reg = <0x1e6e2000 0x1a8>;
- #clock-cells = <1>;
- #reset-cells = <1>;
-};
-
-Silicon ID
------------------
-
-Families have unique hardware silicon identifiers within the SoC.
-
-Required properties:
-
- - compatible: "aspeed,silicon-id" or:
- "aspeed,ast2400-silicon-id" or
- "aspeed,ast2500-silicon-id" or
- "aspeed,ast2600-silicon-id"
-
- - reg: offset and length of the silicon id information
- optionally, a second offset and length describes the unique chip id
-
- The reg should be the unique silicon id register, and
- not backwards compatible one in eg. the 2600.
-
-Example:
-
-
-silicon-id@7c {
- compatible = "aspeed,ast2500-silicon-id", "aspeed,silicon-id";
- reg = <0x7c 0x4 0x150 0x8>;
-};
diff --git a/Documentation/devicetree/bindings/mfd/atmel-usart.txt b/Documentation/devicetree/bindings/mfd/atmel-usart.txt
deleted file mode 100644
index a09133066aff..000000000000
--- a/Documentation/devicetree/bindings/mfd/atmel-usart.txt
+++ /dev/null
@@ -1,98 +0,0 @@
-* Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)
-
-Required properties for USART:
-- compatible: Should be one of the following:
- - "atmel,at91rm9200-usart"
- - "atmel,at91sam9260-usart"
- - "microchip,sam9x60-usart"
- - "atmel,at91rm9200-dbgu", "atmel,at91rm9200-usart"
- - "atmel,at91sam9260-dbgu", "atmel,at91sam9260-usart"
- - "microchip,sam9x60-dbgu", "microchip,sam9x60-usart"
-- reg: Should contain registers location and length
-- interrupts: Should contain interrupt
-- clock-names: tuple listing input clock names.
- Required elements: "usart"
-- clocks: phandles to input clocks.
-
-Required properties for USART in SPI mode:
-- #size-cells : Must be <0>
-- #address-cells : Must be <1>
-- cs-gpios: chipselects (internal cs not supported)
-- atmel,usart-mode : Must be <AT91_USART_MODE_SPI> (found in dt-bindings/mfd/at91-usart.h)
-
-Optional properties in serial and SPI mode:
-- dma bindings for dma transfer:
- - dmas: DMA specifier, consisting of a phandle to DMA controller node,
- memory peripheral interface and USART DMA channel ID, FIFO configuration.
- The order of DMA channels is fixed. The first DMA channel must be TX
- associated channel and the second one must be RX associated channel.
- Refer to dma.txt and atmel-dma.txt for details.
- - dma-names: "tx" for TX channel.
- "rx" for RX channel.
- The order of dma-names is also fixed. The first name must be "tx"
- and the second one must be "rx" as in the examples below.
-
-Optional properties in serial mode:
-- atmel,use-dma-rx: use of PDC or DMA for receiving data
-- atmel,use-dma-tx: use of PDC or DMA for transmitting data
-- {rts,cts,dtr,dsr,rng,dcd}-gpios: specify a GPIO for RTS/CTS/DTR/DSR/RI/DCD line respectively.
- It will use specified PIO instead of the peripheral function pin for the USART feature.
- If unsure, don't specify this property.
-- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
- capable USARTs.
-- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
-
-<chip> compatible description:
-- at91rm9200: legacy USART support
-- at91sam9260: generic USART implementation for SAM9 SoCs
-
-Example:
-- use PDC:
- usart0: serial@fff8c000 {
- compatible = "atmel,at91sam9260-usart";
- reg = <0xfff8c000 0x4000>;
- interrupts = <7>;
- clocks = <&usart0_clk>;
- clock-names = "usart";
- atmel,use-dma-rx;
- atmel,use-dma-tx;
- rts-gpios = <&pioD 15 GPIO_ACTIVE_LOW>;
- cts-gpios = <&pioD 16 GPIO_ACTIVE_LOW>;
- dtr-gpios = <&pioD 17 GPIO_ACTIVE_LOW>;
- dsr-gpios = <&pioD 18 GPIO_ACTIVE_LOW>;
- dcd-gpios = <&pioD 20 GPIO_ACTIVE_LOW>;
- rng-gpios = <&pioD 19 GPIO_ACTIVE_LOW>;
- };
-
-- use DMA:
- usart0: serial@f001c000 {
- compatible = "atmel,at91sam9260-usart";
- reg = <0xf001c000 0x100>;
- interrupts = <12 4 5>;
- clocks = <&usart0_clk>;
- clock-names = "usart";
- atmel,use-dma-rx;
- atmel,use-dma-tx;
- dmas = <&dma0 2 0x3>,
- <&dma0 2 0x204>;
- dma-names = "tx", "rx";
- atmel,fifo-size = <32>;
- };
-
-- SPI mode:
- #include <dt-bindings/mfd/at91-usart.h>
-
- spi0: spi@f001c000 {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "atmel,at91rm9200-usart", "atmel,at91sam9260-usart";
- atmel,usart-mode = <AT91_USART_MODE_SPI>;
- reg = <0xf001c000 0x100>;
- interrupts = <12 IRQ_TYPE_LEVEL_HIGH 5>;
- clocks = <&usart0_clk>;
- clock-names = "usart";
- dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(3)>,
- <&dma0 2 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
- dma-names = "tx", "rx";
- cs-gpios = <&pioB 3 0>;
- };
diff --git a/Documentation/devicetree/bindings/mfd/brcm,bcm6318-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/brcm,bcm6318-gpio-sysctl.yaml
index afc569bc15cf..148f1da47603 100644
--- a/Documentation/devicetree/bindings/mfd/brcm,bcm6318-gpio-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/brcm,bcm6318-gpio-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/brcm,bcm6318-gpio-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM6318 GPIO System Controller Device Tree Bindings
+title: Broadcom BCM6318 GPIO System Controller
maintainers:
- Ãlvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/mfd/brcm,bcm63268-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/brcm,bcm63268-gpio-sysctl.yaml
index c7771c86d7c1..7e582243ea76 100644
--- a/Documentation/devicetree/bindings/mfd/brcm,bcm63268-gpio-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/brcm,bcm63268-gpio-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/brcm,bcm63268-gpio-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM63268 GPIO System Controller Device Tree Bindings
+title: Broadcom BCM63268 GPIO System Controller
maintainers:
- Ãlvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/mfd/brcm,bcm6328-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/brcm,bcm6328-gpio-sysctl.yaml
index 33963c11ae62..2230848e11c3 100644
--- a/Documentation/devicetree/bindings/mfd/brcm,bcm6328-gpio-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/brcm,bcm6328-gpio-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/brcm,bcm6328-gpio-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM6328 GPIO System Controller Device Tree Bindings
+title: Broadcom BCM6328 GPIO System Controller
maintainers:
- Ãlvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/mfd/brcm,bcm6358-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/brcm,bcm6358-gpio-sysctl.yaml
index 3e44bea78b03..c06693b6f7aa 100644
--- a/Documentation/devicetree/bindings/mfd/brcm,bcm6358-gpio-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/brcm,bcm6358-gpio-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/brcm,bcm6358-gpio-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM6358 GPIO System Controller Device Tree Bindings
+title: Broadcom BCM6358 GPIO System Controller
maintainers:
- Ãlvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/mfd/brcm,bcm6362-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/brcm,bcm6362-gpio-sysctl.yaml
index 48d14a5fe0d5..c560bede0e37 100644
--- a/Documentation/devicetree/bindings/mfd/brcm,bcm6362-gpio-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/brcm,bcm6362-gpio-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/brcm,bcm6362-gpio-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM6362 GPIO System Controller Device Tree Bindings
+title: Broadcom BCM6362 GPIO System Controller
maintainers:
- Ãlvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/mfd/brcm,bcm6368-gpio-sysctl.yaml b/Documentation/devicetree/bindings/mfd/brcm,bcm6368-gpio-sysctl.yaml
index 307270b0cfed..c534f5f2404e 100644
--- a/Documentation/devicetree/bindings/mfd/brcm,bcm6368-gpio-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/brcm,bcm6368-gpio-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/brcm,bcm6368-gpio-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM6368 GPIO System Controller Device Tree Bindings
+title: Broadcom BCM6368 GPIO System Controller
maintainers:
- Ãlvaro Fernández Rojas <noltari@gmail.com>
diff --git a/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml b/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml
index c24ad45cabb5..e2046f07a40e 100644
--- a/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml
+++ b/Documentation/devicetree/bindings/mfd/canaan,k210-sysctl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/canaan,k210-sysctl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Canaan Kendryte K210 System Controller Device Tree Bindings
+title: Canaan Kendryte K210 System Controller
maintainers:
- Damien Le Moal <damien.lemoal@wdc.com>
diff --git a/Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml b/Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml
index ad285cb480c9..ebbedabb2bd4 100644
--- a/Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml
+++ b/Documentation/devicetree/bindings/mfd/cirrus,lochnagar.yaml
@@ -144,6 +144,7 @@ properties:
CODECs digital core if not being provided by an internal regulator.
type: object
$ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
properties:
compatible:
enum:
@@ -161,6 +162,7 @@ properties:
CODECs MICVDD.
type: object
$ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
properties:
compatible:
enum:
@@ -177,6 +179,7 @@ properties:
Initialisation data for the MIC1VDD supplies.
type: object
$ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
properties:
compatible:
enum:
@@ -202,6 +205,7 @@ properties:
Initialisation data for the MIC2VDD supplies.
type: object
$ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
properties:
compatible:
enum:
@@ -228,6 +232,7 @@ properties:
the CODECs analog and 1.8V digital supplies.
type: object
$ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
properties:
compatible:
enum:
@@ -261,7 +266,7 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/clk/lochnagar.h>
+ #include <dt-bindings/clock/lochnagar.h>
#include <dt-bindings/pinctrl/lochnagar.h>
i2c@e0004000 {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/mfd/da9063.txt b/Documentation/devicetree/bindings/mfd/da9063.txt
deleted file mode 100644
index aa8b800cc4ad..000000000000
--- a/Documentation/devicetree/bindings/mfd/da9063.txt
+++ /dev/null
@@ -1,114 +0,0 @@
-* Dialog DA9063/DA9063L Power Management Integrated Circuit (PMIC)
-
-DA9063 consists of a large and varied group of sub-devices (I2C Only):
-
-Device Supply Names Description
------- ------------ -----------
-da9063-regulator : : LDOs & BUCKs
-da9063-onkey : : On Key
-da9063-rtc : : Real-Time Clock (DA9063 only)
-da9063-watchdog : : Watchdog
-
-======
-
-Required properties:
-
-- compatible : Should be "dlg,da9063" or "dlg,da9063l"
-- reg : Specifies the I2C slave address (this defaults to 0x58 but it can be
- modified to match the chip's OTP settings).
-- interrupts : IRQ line information.
-- interrupt-controller
-
-Sub-nodes:
-
-- regulators : This node defines the settings for the LDOs and BUCKs.
- The DA9063(L) regulators are bound using their names listed below:
-
- bcore1 : BUCK CORE1
- bcore2 : BUCK CORE2
- bpro : BUCK PRO
- bmem : BUCK MEM
- bio : BUCK IO
- bperi : BUCK PERI
- ldo1 : LDO_1 (DA9063 only)
- ldo2 : LDO_2 (DA9063 only)
- ldo3 : LDO_3
- ldo4 : LDO_4 (DA9063 only)
- ldo5 : LDO_5 (DA9063 only)
- ldo6 : LDO_6 (DA9063 only)
- ldo7 : LDO_7
- ldo8 : LDO_8
- ldo9 : LDO_9
- ldo10 : LDO_10 (DA9063 only)
- ldo11 : LDO_11
-
- The component follows the standard regulator framework and the bindings
- details of individual regulator device can be found in:
- Documentation/devicetree/bindings/regulator/regulator.txt
-
-- rtc : This node defines settings for the Real-Time Clock associated with
- the DA9063 only. The RTC is not present in DA9063L. There are currently
- no entries in this binding, however compatible = "dlg,da9063-rtc" should
- be added if a node is created.
-
-- onkey : This node defines the OnKey settings for controlling the key
- functionality of the device. The node should contain the compatible property
- with the value "dlg,da9063-onkey".
-
- Optional onkey properties:
-
- - dlg,disable-key-power : Disable power-down using a long key-press. If this
- entry exists the OnKey driver will remove support for the KEY_POWER key
- press. If this entry does not exist then by default the key-press
- triggered power down is enabled and the OnKey will support both KEY_POWER
- and KEY_SLEEP.
-
-- watchdog : This node defines settings for the Watchdog timer associated
- with the DA9063 and DA9063L. The node should contain the compatible property
- with the value "dlg,da9063-watchdog".
-
- Optional watchdog properties:
- - dlg,use-sw-pm: Add this property to disable the watchdog during suspend.
- Only use this option if you can't use the watchdog automatic suspend
- function during a suspend (see register CONTROL_B).
-
-Example:
-
- pmic0: da9063@58 {
- compatible = "dlg,da9063"
- reg = <0x58>;
- interrupt-parent = <&gpio6>;
- interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
- interrupt-controller;
-
- rtc {
- compatible = "dlg,da9063-rtc";
- };
-
- wdt {
- compatible = "dlg,da9063-watchdog";
- };
-
- onkey {
- compatible = "dlg,da9063-onkey";
- dlg,disable-key-power;
- };
-
- regulators {
- DA9063_BCORE1: bcore1 {
- regulator-name = "BCORE1";
- regulator-min-microvolt = <300000>;
- regulator-max-microvolt = <1570000>;
- regulator-min-microamp = <500000>;
- regulator-max-microamp = <2000000>;
- regulator-boot-on;
- };
- DA9063_LDO11: ldo11 {
- regulator-name = "LDO_11";
- regulator-min-microvolt = <900000>;
- regulator-max-microvolt = <3600000>;
- regulator-boot-on;
- };
- };
- };
-
diff --git a/Documentation/devicetree/bindings/mfd/dlg,da9063.yaml b/Documentation/devicetree/bindings/mfd/dlg,da9063.yaml
new file mode 100644
index 000000000000..e8e74e91070c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/dlg,da9063.yaml
@@ -0,0 +1,133 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/dlg,da9063.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dialog DA9063/DA9063L Power Management Integrated Circuit (PMIC)
+
+maintainers:
+ - Steve Twiss <stwiss.opensource@diasemi.com>
+
+description: |
+ For device-tree bindings of other sub-modules refer to the binding documents
+ under the respective sub-system directories.
+
+properties:
+ compatible:
+ enum:
+ - dlg,da9063
+ - dlg,da9063l
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ dlg,use-sw-pm:
+ type: boolean
+ description:
+ Disable the watchdog during suspend.
+ Only use this option if you can't use the watchdog automatic suspend
+ function during a suspend (see register CONTROL_B).
+
+ watchdog:
+ type: object
+ $ref: /schemas/watchdog/watchdog.yaml#
+ unevaluatedProperties: false
+ properties:
+ compatible:
+ const: dlg,da9063-watchdog
+
+ rtc:
+ type: object
+ $ref: /schemas/rtc/rtc.yaml#
+ unevaluatedProperties: false
+ properties:
+ compatible:
+ const: dlg,da9063-rtc
+
+ onkey:
+ type: object
+ $ref: /schemas/input/input.yaml#
+ unevaluatedProperties: false
+ properties:
+ compatible:
+ const: dlg,da9063-onkey
+
+ dlg,disable-key-power:
+ type: boolean
+ description: |
+ Disable power-down using a long key-press.
+ If this entry does not exist then by default the key-press triggered
+ power down is enabled and the OnKey will support both KEY_POWER and
+ KEY_SLEEP.
+
+ regulators:
+ type: object
+ additionalProperties: false
+ patternProperties:
+ "^(ldo([1-9]|1[01])|bcore([1-2]|s-merged)|b(pro|mem|io|peri)|bmem-bio-merged)$":
+ $ref: /schemas/regulator/regulator.yaml
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ pmic@58 {
+ compatible = "dlg,da9063";
+ reg = <0x58>;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio6>;
+ interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+
+ rtc {
+ compatible = "dlg,da9063-rtc";
+ };
+
+ watchdog {
+ compatible = "dlg,da9063-watchdog";
+ };
+
+ onkey {
+ compatible = "dlg,da9063-onkey";
+ dlg,disable-key-power;
+ };
+
+ regulators {
+ bcore1 {
+ regulator-name = "BCORE1";
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <1570000>;
+ regulator-min-microamp = <500000>;
+ regulator-max-microamp = <2000000>;
+ regulator-boot-on;
+ };
+ ldo11 {
+ regulator-name = "LDO_11";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <3600000>;
+ regulator-boot-on;
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml b/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
new file mode 100644
index 000000000000..f09577105b50
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/fsl,imx8qxp-csr.yaml
@@ -0,0 +1,192 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/fsl,imx8qxp-csr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX8qm/qxp Control and Status Registers Module Bindings
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ As a system controller, the Freescale i.MX8qm/qxp Control and Status
+ Registers(CSR) module represents a set of miscellaneous registers of a
+ specific subsystem. It may provide control and/or status report interfaces
+ to a mix of standalone hardware devices within that subsystem. One typical
+ use-case is for some other nodes to acquire a reference to the syscon node
+ by phandle, and the other typical use-case is that the operating system
+ should consider all subnodes of the CSR module as separate child devices.
+
+properties:
+ $nodename:
+ pattern: "^syscon@[0-9a-f]+$"
+
+ compatible:
+ items:
+ - enum:
+ - fsl,imx8qxp-mipi-lvds-csr
+ - fsl,imx8qm-lvds-csr
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: ipg
+
+patternProperties:
+ "^(ldb|phy|pxl2dpi)$":
+ type: object
+ description: The possible child devices of the CSR module.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8qxp-mipi-lvds-csr
+ then:
+ required:
+ - pxl2dpi
+ - ldb
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8qm-lvds-csr
+ then:
+ required:
+ - phy
+ - ldb
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx8-lpcg.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ mipi_lvds_0_csr: syscon@56221000 {
+ compatible = "fsl,imx8qxp-mipi-lvds-csr", "syscon", "simple-mfd";
+ reg = <0x56221000 0x1000>;
+ clocks = <&mipi_lvds_0_di_mipi_lvds_regs_lpcg IMX_LPCG_CLK_4>;
+ clock-names = "ipg";
+
+ mipi_lvds_0_pxl2dpi: pxl2dpi {
+ compatible = "fsl,imx8qxp-pxl2dpi";
+ fsl,sc-resource = <IMX_SC_R_MIPI_0>;
+ power-domains = <&pd IMX_SC_R_MIPI_0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ mipi_lvds_0_pxl2dpi_dc0_pixel_link0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&dc0_pixel_link0_mipi_lvds_0_pxl2dpi>;
+ };
+
+ mipi_lvds_0_pxl2dpi_dc0_pixel_link1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&dc0_pixel_link1_mipi_lvds_0_pxl2dpi>;
+ };
+ };
+
+ port@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+
+ mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi>;
+ };
+
+ mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1: endpoint@1 {
+ reg = <1>;
+ remote-endpoint = <&mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi>;
+ };
+ };
+ };
+ };
+
+ mipi_lvds_0_ldb: ldb {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx8qxp-ldb";
+ clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_MISC2>,
+ <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_BYPASS>;
+ clock-names = "pixel", "bypass";
+ power-domains = <&pd IMX_SC_R_LVDS_0>;
+
+ channel@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ phys = <&mipi_lvds_0_phy>;
+ phy-names = "lvds_phy";
+
+ port@0 {
+ reg = <0>;
+
+ mipi_lvds_0_ldb_ch0_mipi_lvds_0_pxl2dpi: endpoint {
+ remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch0>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ /* ... */
+ };
+ };
+
+ channel@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ phys = <&mipi_lvds_0_phy>;
+ phy-names = "lvds_phy";
+
+ port@0 {
+ reg = <0>;
+
+ mipi_lvds_0_ldb_ch1_mipi_lvds_0_pxl2dpi: endpoint {
+ remote-endpoint = <&mipi_lvds_0_pxl2dpi_mipi_lvds_0_ldb_ch1>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+
+ /* ... */
+ };
+ };
+ };
+ };
+
+ mipi_lvds_0_phy: phy@56228300 {
+ compatible = "fsl,imx8qxp-mipi-dphy";
+ reg = <0x56228300 0x100>;
+ clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_PHY>;
+ clock-names = "phy_ref";
+ #phy-cells = <0>;
+ fsl,syscon = <&mipi_lvds_0_csr>;
+ power-domains = <&pd IMX_SC_R_MIPI_0>;
+ };
diff --git a/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml b/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
index 5a1e8d21f7a0..acb9c54942d9 100644
--- a/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
+++ b/Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml
@@ -19,7 +19,6 @@ description: |
maintainers:
- Tim Harvey <tharvey@gateworks.com>
- - Robert Jones <rjones@gateworks.com>
properties:
$nodename:
@@ -47,6 +46,7 @@ properties:
adc:
type: object
+ additionalProperties: false
description: Optional hardware monitoring module
properties:
@@ -60,8 +60,9 @@ properties:
const: 0
patternProperties:
- "^channel@[0-9]+$":
+ "^channel@[0-9a-f]+$":
type: object
+ additionalProperties: false
description: |
Properties for a single ADC which can report cooked values
(i.e. temperature sensor based on thermister), raw values
@@ -114,6 +115,7 @@ properties:
patternProperties:
"^fan-controller@[0-9a-f]+$":
type: object
+ additionalProperties: false
description: Optional fan controller
properties:
diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
index e25caf8ef9f4..04962bb29576 100644
--- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
+++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
@@ -90,6 +90,9 @@ properties:
pwm:
$ref: "/schemas/pwm/google,cros-ec-pwm.yaml#"
+ kbd-led-backlight:
+ $ref: "/schemas/chrome/google,cros-kbd-led-backlight.yaml#"
+
keyboard-controller:
$ref: "/schemas/input/google,cros-ec-keyb.yaml#"
diff --git a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
index a3b976f101e8..084960fd5a1f 100644
--- a/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
+++ b/Documentation/devicetree/bindings/mfd/khadas,mcu.yaml
@@ -4,10 +4,10 @@
$id: http://devicetree.org/schemas/mfd/khadas,mcu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Khadas on-board Microcontroller Device Tree Bindings
+title: Khadas on-board Microcontroller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
Khadas embeds a microcontroller on their VIM and Edge boards adding some
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml b/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml
index 52edd1bf549f..995e96ee7445 100644
--- a/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml
+++ b/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml
@@ -39,6 +39,7 @@ properties:
extcon:
type: object
+ additionalProperties: false
properties:
compatible:
enum:
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77843.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77843.yaml
index f30f96bbff43..2e2a2a86b57d 100644
--- a/Documentation/devicetree/bindings/mfd/maxim,max77843.yaml
+++ b/Documentation/devicetree/bindings/mfd/maxim,max77843.yaml
@@ -32,6 +32,7 @@ properties:
motor-driver:
type: object
+ additionalProperties: false
properties:
compatible:
const: maxim,max77843-haptic
diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6370.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6370.yaml
new file mode 100644
index 000000000000..250484d59ecd
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6370.yaml
@@ -0,0 +1,280 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/mediatek,mt6370.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT6370 SubPMIC
+
+maintainers:
+ - ChiYuan Huang <cy_huang@richtek.com>
+
+description: |
+ MT6370 is a highly-integrated smart power management IC, which includes a
+ single cell Li-Ion/Li-Polymer switching battery charger, a USB Type-C &
+ Power Delivery (PD) controller, dual flash LED current sources, a RGB LED
+ driver, a backlight WLED driver, a display bias driver and a general LDO for
+ portable devices.
+
+properties:
+ compatible:
+ const: mediatek,mt6370
+
+ reg:
+ maxItems: 1
+
+ wakeup-source: true
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 1
+
+ adc:
+ type: object
+ description: |
+ Provides 9 channels for system monitoring, including VBUSDIV5 (lower
+ accuracy, higher measure range), VBUSDIV2 (higher accuracy, lower
+ measure range), VBAT, VSYS, CHG_VDDP, TS_BAT, IBUS, IBAT, and TEMP_JC.
+
+ properties:
+ compatible:
+ const: mediatek,mt6370-adc
+
+ "#io-channel-cells":
+ const: 1
+
+ required:
+ - compatible
+ - "#io-channel-cells"
+
+ backlight:
+ type: object
+ $ref: /schemas/leds/backlight/mediatek,mt6370-backlight.yaml#
+
+ charger:
+ type: object
+ $ref: /schemas/power/supply/mediatek,mt6370-charger.yaml#
+
+ tcpc:
+ type: object
+ $ref: /schemas/usb/mediatek,mt6370-tcpc.yaml#
+
+ indicator:
+ type: object
+ $ref: /schemas/leds/mediatek,mt6370-indicator.yaml#
+
+ flashlight:
+ type: object
+ $ref: /schemas/leds/mediatek,mt6370-flashlight.yaml#
+
+ regulators:
+ type: object
+ description: |
+ List all supported regulators, which support the control for DisplayBias
+ voltages and one general purpose LDO which commonly used to drive the
+ vibrator.
+
+ patternProperties:
+ "^(dsvbst|vibldo)$":
+ $ref: /schemas/regulator/regulator.yaml#
+ type: object
+ unevaluatedProperties: false
+
+ "^(dsvpos|dsvneg)$":
+ $ref: /schemas/regulator/regulator.yaml#
+ type: object
+ unevaluatedProperties: false
+
+ properties:
+ enable-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+ - regulators
+ - adc
+ - backlight
+ - indicator
+ - tcpc
+ - charger
+ - flashlight
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/leds/common.h>
+ #include <dt-bindings/iio/adc/mediatek,mt6370_adc.h>
+ #include <dt-bindings/usb/pd.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@34 {
+ compatible = "mediatek,mt6370";
+ reg = <0x34>;
+ wakeup-source;
+ interrupts-extended = <&gpio26 3 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ mt6370_adc: adc {
+ compatible = "mediatek,mt6370-adc";
+ #io-channel-cells = <1>;
+ };
+
+ backlight {
+ compatible = "mediatek,mt6370-backlight";
+ mediatek,bled-channel-use = /bits/ 8 <15>;
+ };
+
+ charger {
+ compatible = "mediatek,mt6370-charger";
+ interrupts = <48>, <68>, <6>;
+ interrupt-names = "attach_i", "uvp_d_evt", "mivr";
+ io-channels = <&mt6370_adc MT6370_CHAN_IBUS>;
+
+ mt6370_otg_vbus: usb-otg-vbus-regulator {
+ regulator-name = "mt6370-usb-otg-vbus";
+ regulator-min-microvolt = <4350000>;
+ regulator-max-microvolt = <5800000>;
+ regulator-min-microamp = <500000>;
+ regulator-max-microamp = <3000000>;
+ };
+ };
+
+ indicator {
+ compatible = "mediatek,mt6370-indicator";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ multi-led@0 {
+ reg = <0>;
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_RGB>;
+ led-max-microamp = <24000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ led@0 {
+ reg = <0>;
+ color = <LED_COLOR_ID_RED>;
+ };
+ led@1 {
+ reg = <1>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+ led@2 {
+ reg = <2>;
+ color = <LED_COLOR_ID_BLUE>;
+ };
+ };
+ led@3 {
+ reg = <3>;
+ function = LED_FUNCTION_INDICATOR;
+ color = <LED_COLOR_ID_WHITE>;
+ led-max-microamp = <6000>;
+ };
+ };
+
+ flashlight {
+ compatible = "mediatek,mt6370-flashlight";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ led@0 {
+ reg = <0>;
+ led-sources = <0>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ function-enumerator = <1>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <500000>;
+ flash-max-timeout-us = <1248000>;
+ };
+ led@1 {
+ reg = <1>;
+ led-sources = <1>;
+ function = LED_FUNCTION_FLASH;
+ color = <LED_COLOR_ID_WHITE>;
+ function-enumerator = <2>;
+ led-max-microamp = <200000>;
+ flash-max-microamp = <500000>;
+ flash-max-timeout-us = <1248000>;
+ };
+ };
+
+ tcpc {
+ compatible = "mediatek,mt6370-tcpc";
+ interrupts-extended = <&gpio26 4 IRQ_TYPE_LEVEL_LOW>;
+
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ vbus-supply = <&mt6370_otg_vbus>;
+ data-role = "dual";
+ power-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 1000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP)>;
+ sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP)>;
+ op-sink-microwatt = <10000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ endpoint {
+ remote-endpoint = <&usb_hs>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&usb_ss>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ endpoint {
+ remote-endpoint = <&dp_aux>;
+ };
+ };
+ };
+ };
+ };
+
+ regulators {
+ dsvbst {
+ regulator-name = "mt6370-dsv-vbst";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6200000>;
+ };
+ dsvpos {
+ regulator-name = "mt6370-dsv-vpos";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-boot-on;
+ };
+ dsvneg {
+ regulator-name = "mt6370-dsv-vneg";
+ regulator-min-microvolt = <4000000>;
+ regulator-max-microvolt = <6000000>;
+ regulator-boot-on;
+ };
+ vibldo {
+ regulator-name = "mt6370-vib-ldo";
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <4000000>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt8195-scpsys.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt8195-scpsys.yaml
new file mode 100644
index 000000000000..c8c4812fffe2
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/mediatek,mt8195-scpsys.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/mediatek,mt8195-scpsys.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek System Control Processor System
+
+maintainers:
+ - MandyJH Liu <mandyjh.liu@mediatek.com>
+
+description:
+ MediaTek System Control Processor System (SCPSYS) has several
+ power management tasks. The tasks include MTCMOS power
+ domain control, thermal measurement, DVFS, etc.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8167-scpsys
+ - mediatek,mt8173-scpsys
+ - mediatek,mt8183-scpsys
+ - mediatek,mt8186-scpsys
+ - mediatek,mt8192-scpsys
+ - mediatek,mt8195-scpsys
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ power-controller:
+ $ref: /schemas/power/mediatek,power-controller.yaml#
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8195-clk.h>
+ #include <dt-bindings/power/mt8195-power.h>
+
+ syscon@10006000 {
+ compatible = "mediatek,mt8195-scpsys", "syscon", "simple-mfd";
+ reg = <0x10006000 0x100>;
+
+ spm: power-controller {
+ compatible = "mediatek,mt8195-power-controller";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #power-domain-cells = <1>;
+
+ /* sample of power domain nodes */
+ power-domain@MT8195_POWER_DOMAIN_PCIE_PHY {
+ reg = <MT8195_POWER_DOMAIN_PCIE_PHY>;
+ #power-domain-cells = <0>;
+ };
+
+ power-domain@MT8195_POWER_DOMAIN_SSUSB_PCIE_PHY {
+ reg = <MT8195_POWER_DOMAIN_SSUSB_PCIE_PHY>;
+ #power-domain-cells = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
index f91acc42d652..5ba849d78d8a 100644
--- a/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
+++ b/Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
@@ -18,7 +18,9 @@ description: |
properties:
compatible:
- const: mps,mp2629
+ enum:
+ - mps,mp2629
+ - mps,mp2733
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/mfd/mscc,ocelot.yaml b/Documentation/devicetree/bindings/mfd/mscc,ocelot.yaml
new file mode 100644
index 000000000000..8bf45a5673a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/mscc,ocelot.yaml
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause */
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/mscc,ocelot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ocelot Externally-Controlled Ethernet Switch
+
+maintainers:
+ - Colin Foster <colin.foster@in-advantage.com>
+
+description: |
+ The Ocelot ethernet switch family contains chips that have an internal CPU
+ (VSC7513, VSC7514) and chips that don't (VSC7511, VSC7512). All switches have
+ the option to be controlled externally, which is the purpose of this driver.
+
+ The switch family is a multi-port networking switch that supports many
+ interfaces. Additionally, the device can perform pin control, MDIO buses, and
+ external GPIO expanders.
+
+properties:
+ compatible:
+ enum:
+ - mscc,vsc7512
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ spi-max-frequency:
+ maxItems: 1
+
+patternProperties:
+ "^pinctrl@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/pinctrl/mscc,ocelot-pinctrl.yaml
+
+ "^gpio@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/pinctrl/microchip,sparx5-sgpio.yaml
+ properties:
+ compatible:
+ enum:
+ - mscc,ocelot-sgpio
+
+ "^mdio@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/net/mscc,miim.yaml
+ properties:
+ compatible:
+ enum:
+ - mscc,ocelot-miim
+
+required:
+ - compatible
+ - reg
+ - '#address-cells'
+ - '#size-cells'
+ - spi-max-frequency
+
+additionalProperties: false
+
+examples:
+ - |
+ ocelot_clock: ocelot-clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <125000000>;
+ };
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ soc@0 {
+ compatible = "mscc,vsc7512";
+ spi-max-frequency = <2500000>;
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ mdio@7107009c {
+ compatible = "mscc,ocelot-miim";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x7107009c 0x24>;
+
+ sw_phy0: ethernet-phy@0 {
+ reg = <0x0>;
+ };
+ };
+
+ mdio@710700c0 {
+ compatible = "mscc,ocelot-miim";
+ pinctrl-names = "default";
+ pinctrl-0 = <&miim1_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x710700c0 0x24>;
+
+ sw_phy4: ethernet-phy@4 {
+ reg = <0x4>;
+ };
+ };
+
+ gpio: pinctrl@71070034 {
+ compatible = "mscc,ocelot-pinctrl";
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&gpio 0 0 22>;
+ reg = <0x71070034 0x6c>;
+
+ sgpio_pins: sgpio-pins {
+ pins = "GPIO_0", "GPIO_1", "GPIO_2", "GPIO_3";
+ function = "sg0";
+ };
+
+ miim1_pins: miim1-pins {
+ pins = "GPIO_14", "GPIO_15";
+ function = "miim";
+ };
+ };
+
+ gpio@710700f8 {
+ compatible = "mscc,ocelot-sgpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ bus-frequency = <12500000>;
+ clocks = <&ocelot_clock>;
+ microchip,sgpio-port-ranges = <0 15>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sgpio_pins>;
+ reg = <0x710700f8 0x100>;
+
+ sgpio_in0: gpio@0 {
+ compatible = "microchip,sparx5-sgpio-bank";
+ reg = <0>;
+ gpio-controller;
+ #gpio-cells = <3>;
+ ngpios = <64>;
+ };
+
+ sgpio_out1: gpio@1 {
+ compatible = "microchip,sparx5-sgpio-bank";
+ reg = <1>;
+ gpio-controller;
+ #gpio-cells = <3>;
+ ngpios = <64>;
+ };
+ };
+ };
+ };
+
+...
+
diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt
index 293db2a71ef2..0088442efca1 100644
--- a/Documentation/devicetree/bindings/mfd/mt6397.txt
+++ b/Documentation/devicetree/bindings/mfd/mt6397.txt
@@ -20,6 +20,7 @@ This document describes the binding for MFD device and its sub module.
Required properties:
compatible:
"mediatek,mt6323" for PMIC MT6323
+ "mediatek,mt6331" for PMIC MT6331 and MT6332
"mediatek,mt6358" for PMIC MT6358 and MT6366
"mediatek,mt6359" for PMIC MT6359
"mediatek,mt6397" for PMIC MT6397
@@ -29,6 +30,7 @@ Optional subnodes:
- rtc
Required properties: Should be one of follows
- compatible: "mediatek,mt6323-rtc"
+ - compatible: "mediatek,mt6331-rtc"
- compatible: "mediatek,mt6358-rtc"
- compatible: "mediatek,mt6397-rtc"
For details, see ../rtc/rtc-mt6397.txt
@@ -52,8 +54,10 @@ Optional subnodes:
see ../leds/leds-mt6323.txt
- keys
- Required properties:
- - compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
+ Required properties: Should be one of the following
+ - compatible: "mediatek,mt6323-keys"
+ - compatible: "mediatek,mt6331-keys"
+ - compatible: "mediatek,mt6397-keys"
see ../input/mtk-pmic-keys.txt
- power-controller
diff --git a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt
deleted file mode 100644
index eb78e3ae7703..000000000000
--- a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.txt
+++ /dev/null
@@ -1,94 +0,0 @@
- Qualcomm SPMI PMICs multi-function device bindings
-
-The Qualcomm SPMI series presently includes PM8941, PM8841 and PMA8084
-PMICs. These PMICs use a QPNP scheme through SPMI interface.
-QPNP is effectively a partitioning scheme for dividing the SPMI extended
-register space up into logical pieces, and set of fixed register
-locations/definitions within these regions, with some of these regions
-specifically used for interrupt handling.
-
-The QPNP PMICs are used with the Qualcomm Snapdragon series SoCs, and are
-interfaced to the chip via the SPMI (System Power Management Interface) bus.
-Support for multiple independent functions are implemented by splitting the
-16-bit SPMI slave address space into 256 smaller fixed-size regions, 256 bytes
-each. A function can consume one or more of these fixed-size register regions.
-
-Required properties:
-- compatible: Should contain one of:
- "qcom,pm660",
- "qcom,pm660l",
- "qcom,pm7325",
- "qcom,pm8004",
- "qcom,pm8005",
- "qcom,pm8019",
- "qcom,pm8028",
- "qcom,pm8110",
- "qcom,pm8150",
- "qcom,pm8150b",
- "qcom,pm8150c",
- "qcom,pm8150l",
- "qcom,pm8226",
- "qcom,pm8350c",
- "qcom,pm8841",
- "qcom,pm8901",
- "qcom,pm8909",
- "qcom,pm8916",
- "qcom,pm8941",
- "qcom,pm8950",
- "qcom,pm8953",
- "qcom,pm8994",
- "qcom,pm8998",
- "qcom,pma8084",
- "qcom,pmd9635",
- "qcom,pmi8950",
- "qcom,pmi8962",
- "qcom,pmi8994",
- "qcom,pmi8998",
- "qcom,pmk8002",
- "qcom,pmk8350",
- "qcom,pmr735a",
- "qcom,smb2351",
- or generalized "qcom,spmi-pmic".
-- reg: Specifies the SPMI USID slave address for this device.
- For more information see:
- Documentation/devicetree/bindings/spmi/spmi.yaml
-
-Required properties for peripheral child nodes:
-- compatible: Should contain "qcom,xxx", where "xxx" is a peripheral name.
-
-Optional properties for peripheral child nodes:
-- interrupts: Interrupts are specified as a 4-tuple. For more information
- see:
- Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
-- interrupt-names: Corresponding interrupt name to the interrupts property
-
-Each child node of SPMI slave id represents a function of the PMIC. In the
-example below the rtc device node represents a peripheral of pm8941
-SID = 0. The regulator device node represents a peripheral of pm8941 SID = 1.
-
-Example:
-
- spmi {
- compatible = "qcom,spmi-pmic-arb";
-
- pm8941@0 {
- compatible = "qcom,pm8941", "qcom,spmi-pmic";
- reg = <0x0 SPMI_USID>;
-
- rtc {
- compatible = "qcom,rtc";
- interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
- interrupt-names = "alarm";
- };
- };
-
- pm8941@1 {
- compatible = "qcom,pm8941", "qcom,spmi-pmic";
- reg = <0x1 SPMI_USID>;
-
- regulator {
- compatible = "qcom,regulator";
- regulator-name = "8941_boost";
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml
new file mode 100644
index 000000000000..6a3e3ede1ede
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml
@@ -0,0 +1,296 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/qcom,spmi-pmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SPMI PMICs multi-function device
+
+description: |
+ Some Qualcomm PMICs used with the Snapdragon series SoCs are interfaced
+ to the chip via the SPMI (System Power Management Interface) bus.
+ Support for multiple independent functions are implemented by splitting the
+ 16-bit SPMI peripheral address space into 256 smaller fixed-size regions, 256 bytes
+ each. A function can consume one or more of these fixed-size register regions.
+
+ The Qualcomm SPMI series includes the PM8941, PM8841, PMA8084, PM8998 and other
+ PMICs. These PMICs use a "QPNP" scheme through SPMI interface.
+ QPNP is effectively a partitioning scheme for dividing the SPMI extended
+ register space up into logical pieces, and set of fixed register
+ locations/definitions within these regions, with some of these regions
+ specifically used for interrupt handling.
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+
+properties:
+ $nodename:
+ oneOf:
+ - pattern: '^pmic@.*$'
+ - pattern: '^pm(a|s)?[0-9]*@.*$'
+ deprecated: true
+
+ compatible:
+ items:
+ - enum:
+ - qcom,pm6150
+ - qcom,pm6150l
+ - qcom,pm6350
+ - qcom,pm660
+ - qcom,pm660l
+ - qcom,pm7250b
+ - qcom,pm7325
+ - qcom,pm8004
+ - qcom,pm8005
+ - qcom,pm8009
+ - qcom,pm8019
+ - qcom,pm8028
+ - qcom,pm8110
+ - qcom,pm8150
+ - qcom,pm8150b
+ - qcom,pm8150c
+ - qcom,pm8150l
+ - qcom,pm8226
+ - qcom,pm8350
+ - qcom,pm8350b
+ - qcom,pm8350c
+ - qcom,pm8841
+ - qcom,pm8909
+ - qcom,pm8916
+ - qcom,pm8941
+ - qcom,pm8950
+ - qcom,pm8953
+ - qcom,pm8994
+ - qcom,pm8998
+ - qcom,pma8084
+ - qcom,pmd9635
+ - qcom,pmi8950
+ - qcom,pmi8962
+ - qcom,pmi8994
+ - qcom,pmi8998
+ - qcom,pmk8002
+ - qcom,pmk8350
+ - qcom,pmm8155au
+ - qcom,pmp8074
+ - qcom,pmr735a
+ - qcom,pmr735b
+ - qcom,pms405
+ - qcom,pmx55
+ - qcom,pmx65
+ - qcom,smb2351
+ - const: qcom,spmi-pmic
+
+ reg:
+ minItems: 1
+ maxItems: 2
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ labibb:
+ type: object
+ $ref: /schemas/regulator/qcom-labibb-regulator.yaml#
+
+ regulators:
+ type: object
+ $ref: /schemas/regulator/qcom,spmi-regulator.yaml#
+
+patternProperties:
+ "^adc@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/iio/adc/qcom,spmi-vadc.yaml#
+
+ "^adc-tm@[0-9a-f]+$":
+ type: object
+ # ref depends on compatible, see allOf below
+
+ "^audio-codec@[0-9a-f]+$":
+ type: object
+ additionalProperties: true # FIXME qcom,pm8916-wcd-analog-codec binding not converted yet
+
+ "extcon@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/extcon/qcom,pm8941-misc.yaml#
+
+ "gpio(s)?@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/pinctrl/qcom,pmic-gpio.yaml#
+
+ "pon@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/power/reset/qcom,pon.yaml#
+
+ "pwm@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/leds/leds-qcom-lpg.yaml#
+
+ "^rtc@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/rtc/qcom-pm8xxx-rtc.yaml#
+
+ "^temp-alarm@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/thermal/qcom,spmi-temp-alarm.yaml#
+
+ "^vibrator@[0-9a-f]+$":
+ type: object
+ additionalProperties: true # FIXME qcom,pm8916-vib binding not converted yet
+
+ "^mpps@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/pinctrl/qcom,pmic-mpp.yaml#
+
+ "(.*)?(wled|leds)@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/leds/backlight/qcom-wled.yaml#
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8998
+ then:
+ patternProperties:
+ "^adc-tm@[0-9a-f]+$":
+ $ref: /schemas/thermal/qcom-spmi-adc-tm-hc.yaml#
+ else:
+ patternProperties:
+ "^adc-tm@[0-9a-f]+$":
+ $ref: /schemas/thermal/qcom-spmi-adc-tm5.yaml#
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/spmi/spmi.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ spmi@c440000 {
+ compatible = "qcom,spmi-pmic-arb";
+ reg = <0x0c440000 0x1100>,
+ <0x0c600000 0x2000000>,
+ <0x0e600000 0x100000>,
+ <0x0e700000 0xa0000>,
+ <0x0c40a000 0x26000>;
+ reg-names = "core", "chnls", "obsrvr", "intr", "cnfg";
+ interrupt-names = "periph_irq";
+ interrupts = <GIC_SPI 481 IRQ_TYPE_LEVEL_HIGH>;
+ qcom,ee = <0>;
+ qcom,channel = <0>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+ interrupt-controller;
+ #interrupt-cells = <4>;
+
+ pmi8998_lsid0: pmic@2 {
+ compatible = "qcom,pmi8998", "qcom,spmi-pmic";
+ reg = <0x2 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmi8998_gpio: gpios@c000 {
+ compatible = "qcom,pmi8998-gpio", "qcom,spmi-gpio";
+ reg = <0xc000>;
+ gpio-controller;
+ gpio-ranges = <&pmi8998_gpio 0 0 14>;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+ };
+
+ - |
+ #include <dt-bindings/input/input.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/iio/qcom,spmi-vadc.h>
+ #include <dt-bindings/spmi/spmi.h>
+
+ pmic@0 {
+ compatible = "qcom,pm6150", "qcom,spmi-pmic";
+ reg = <0x0 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pon@800 {
+ compatible = "qcom,pm8998-pon";
+ reg = <0x800>;
+ mode-bootloader = <0x2>;
+ mode-recovery = <0x1>;
+
+ pwrkey {
+ compatible = "qcom,pm8941-pwrkey";
+ interrupts = <0x0 0x8 0 IRQ_TYPE_EDGE_BOTH>;
+ debounce = <15625>;
+ bias-pull-up;
+ linux,code = <KEY_POWER>;
+ };
+ };
+
+ temp-alarm@2400 {
+ compatible = "qcom,spmi-temp-alarm";
+ reg = <0x2400>;
+ interrupts = <0x0 0x24 0x0 IRQ_TYPE_EDGE_RISING>;
+ io-channels = <&pm6150_adc ADC5_DIE_TEMP>;
+ io-channel-names = "thermal";
+ #thermal-sensor-cells = <0>;
+ };
+
+ pm6150_adc: adc@3100 {
+ compatible = "qcom,spmi-adc5";
+ reg = <0x3100>;
+ interrupts = <0x0 0x31 0x0 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #io-channel-cells = <1>;
+
+ adc-chan@6 {
+ reg = <ADC5_DIE_TEMP>;
+ label = "die_temp";
+ };
+
+ adc-chan@4f {
+ reg = <ADC5_AMUX_THM3_100K_PU>;
+ qcom,ratiometric;
+ qcom,hw-settle-time = <200>;
+ };
+ };
+
+ adc-tm@3500 {
+ compatible = "qcom,spmi-adc-tm5";
+ reg = <0x3500>;
+ interrupts = <0x0 0x35 0x0 IRQ_TYPE_EDGE_RISING>;
+ #thermal-sensor-cells = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ charger-thermistor@0 {
+ reg = <0>;
+ io-channels = <&pm6150_adc ADC5_AMUX_THM3_100K_PU>;
+ qcom,ratiometric;
+ qcom,hw-settle-time-us = <200>;
+ };
+ };
+
+ pm6150_gpio: gpios@c000 {
+ compatible = "qcom,pm6150-gpio", "qcom,spmi-gpio";
+ reg = <0xc000>;
+ gpio-controller;
+ gpio-ranges = <&pm6150_gpio 0 0 10>;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/qcom,tcsr.txt b/Documentation/devicetree/bindings/mfd/qcom,tcsr.txt
deleted file mode 100644
index add61bcc3c74..000000000000
--- a/Documentation/devicetree/bindings/mfd/qcom,tcsr.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-QCOM Top Control and Status Register
-
-Qualcomm devices have a set of registers that provide various control and status
-functions for their peripherals. This node is intended to allow access to these
-registers via syscon.
-
-Required properties:
-- compatible: Should contain:
- "qcom,tcsr-ipq6018", "syscon", "simple-mfd" for IPQ6018
- "qcom,tcsr-ipq8064", "syscon" for IPQ8064
- "qcom,tcsr-apq8064", "syscon" for APQ8064
- "qcom,tcsr-msm8660", "syscon" for MSM8660
- "qcom,tcsr-msm8953", "syscon" for MSM8953
- "qcom,tcsr-msm8960", "syscon" for MSM8960
- "qcom,tcsr-msm8974", "syscon" for MSM8974
- "qcom,tcsr-apq8084", "syscon" for APQ8084
- "qcom,tcsr-msm8916", "syscon" for MSM8916
-- reg: Address range for TCSR registers
-
-Example:
- tcsr: syscon@1a400000 {
- compatible = "qcom,tcsr-msm8960", "syscon";
- reg = <0x1a400000 0x100>;
- };
diff --git a/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml b/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml
new file mode 100644
index 000000000000..b12809b5cc22
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/qcom,tcsr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Top Control and Status Register
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ Qualcomm devices have a set of registers that provide various control and
+ status functions for their peripherals.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,msm8998-tcsr
+ - qcom,qcs404-tcsr
+ - qcom,sc7180-tcsr
+ - qcom,sc7280-tcsr
+ - qcom,sdm630-tcsr
+ - qcom,sdm845-tcsr
+ - qcom,sm8150-tcsr
+ - qcom,tcsr-apq8064
+ - qcom,tcsr-apq8084
+ - qcom,tcsr-ipq6018
+ - qcom,tcsr-ipq8064
+ - qcom,tcsr-mdm9615
+ - qcom,tcsr-msm8660
+ - qcom,tcsr-msm8916
+ - qcom,tcsr-msm8953
+ - qcom,tcsr-msm8960
+ - qcom,tcsr-msm8974
+ - qcom,tcsr-msm8996
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon@1a400000 {
+ compatible = "qcom,tcsr-msm8960", "syscon";
+ reg = <0x1a400000 0x100>;
+ };
diff --git a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
index 2568736701be..61bd0b3ce02f 100644
--- a/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
+++ b/Documentation/devicetree/bindings/mfd/qcom-pm8xxx.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm PM8xxx PMIC multi-function devices
maintainers:
- - Satya Priya <skakit@codeaurora.org>
+ - Satya Priya <quic_c_skakit@quicinc.com>
description: |
The PM8xxx family of Power Management ICs are used to provide regulated
diff --git a/Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml b/Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml
new file mode 100644
index 000000000000..f73b8b25d7d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml
@@ -0,0 +1,178 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/richtek,rt5120.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Richtek RT5120 PMIC
+
+maintainers:
+ - ChiYuan Huang <cy_huang@richtek.com>
+
+description: |
+ The RT5120 provides four high-efficiency buck converters and one LDO voltage
+ regulator. The device is targeted at providingthe processor voltage, memory,
+ I/O, and peripheral rails in home entertainment devices. The I2C interface is
+ used for dynamic voltage scaling of the processor voltage, power rails on/off
+ sequence control, operation mode selection.
+
+properties:
+ compatible:
+ enum:
+ - richtek,rt5120
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 1
+
+ wakeup-source: true
+
+ richtek,enable-undervolt-hiccup:
+ type: boolean
+ description: |
+ If used, under voltage protection trigger hiccup behavior, else latchup as
+ default
+
+ richtek,enable-overvolt-hiccup:
+ type: boolean
+ description:
+ Like as 'enable-uv-hiccup', it configures over voltage protection to
+ hiccup, else latchup as default
+
+ vin1-supply:
+ description: phandle for buck1 input power source
+
+ vin2-supply:
+ description: phandle for buck2 input power source
+
+ vin3-supply:
+ description: phandle for buck3 input power source
+
+ vin4-supply:
+ description: phandle for buck4 input power source
+
+ vinldo-supply:
+ description: phandle for ldo input power source
+
+ regulators:
+ type: object
+
+ patternProperties:
+ "^buck[1-4]$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ regulator-allowed-modes:
+ description: |
+ Used to specify the allowed buck converter operating mode
+ mode mapping:
+ 0: auto mode
+ 1: force pwm mode
+ items:
+ enum: [0, 1]
+
+ "^(ldo|exten)$":
+ type: object
+ $ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
+
+ additionalProperties: false
+
+ powerkey:
+ type: object
+ description:
+ PON key that connected to RT5120 PMIC.
+
+ properties:
+ compatible:
+ enum:
+ - richtek,rt5120-pwrkey
+
+ required:
+ - compatible
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - '#interrupt-cells'
+ - interrupt-controller
+ - regulators
+ - powerkey
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@62 {
+ compatible = "richtek,rt5120";
+ reg = <0x62>;
+ interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ wakeup-source;
+
+ regulators {
+ buck1 {
+ regulator-name = "rt5120-buck1";
+ regulator-min-microvolt = <600000>;
+ regulator-max-microvolt = <1393750>;
+ regulator-allowed-modes = <0 1>;
+ regulator-boot-on;
+ };
+ buck2 {
+ regulator-name = "rt5120-buck2";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-allowed-modes = <0 1>;
+ regulator-always-on;
+ };
+ buck3 {
+ regulator-name = "rt5120-buck3";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-allowed-modes = <0 1>;
+ regulator-always-on;
+ };
+ buck4 {
+ regulator-name = "rt5120-buck4";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-allowed-modes = <0 1>;
+ regulator-always-on;
+ };
+ ldo {
+ regulator-name = "rt5120-ldo";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ exten {
+ regulator-name = "rt5120-exten";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3000000>;
+ regulator-always-on;
+ };
+ };
+ powerkey {
+ compatible = "richtek,rt5120-pwrkey";
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
index bfc1720adc43..935e17099213 100644
--- a/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk817.yaml
@@ -87,6 +87,7 @@ properties:
patternProperties:
"^(LDO_REG[1-9]|DCDC_REG[1-4]|BOOST|OTG_SWITCH)$":
type: object
+ unevaluatedProperties: false
$ref: ../regulator/regulator.yaml#
unevaluatedProperties: false
@@ -111,12 +112,56 @@ properties:
additional properties are required for the codec, this node can be
omitted.
type: object
+ additionalProperties: false
properties:
rockchip,mic-in-differential:
type: boolean
description:
Describes if the microphone uses differential mode.
+ charger:
+ description: |
+ The child node for the charger to hold additional properties. If a
+ battery is not in use, this node can be omitted.
+ type: object
+ properties:
+ monitored-battery:
+ description: |
+ A phandle to a monitored battery node that contains a valid
+ value for:
+ charge-full-design-microamp-hours,
+ charge-term-current-microamp,
+ constant-charge-current-max-microamp,
+ constant-charge-voltage-max-microvolt,
+ voltage-max-design-microvolt,
+ voltage-min-design-microvolt,
+ and a valid ocv-capacity table.
+
+ rockchip,resistor-sense-micro-ohms:
+ description: |
+ Value in microohms of the battery sense resistor. This value is
+ used by the driver to set the correct divisor value to translate
+ ADC readings into the proper units of measure.
+ enum: [10000, 20000]
+
+ rockchip,sleep-enter-current-microamp:
+ description: |
+ Value in microamps of the sleep enter current for the charger.
+ Value is used by the driver to calibrate the relax threshold.
+
+ rockchip,sleep-filter-current-microamp:
+ description:
+ Value in microamps of the sleep filter current for the charger.
+ Value is used by the driver to derive the sleep sample current.
+
+ required:
+ - monitored-battery
+ - rockchip,resistor-sense-micro-ohms
+ - rockchip,sleep-enter-current-microamp
+ - rockchip,sleep-filter-current-microamp
+
+ additionalProperties: false
+
allOf:
- if:
properties:
@@ -323,6 +368,13 @@ examples:
};
};
+ rk817_charger: charger {
+ monitored-battery = <&battery>;
+ rockchip,resistor-sense-micro-ohms = <10000>;
+ rockchip,sleep-enter-current-microamp = <300000>;
+ rockchip,sleep-filter-current-microamp = <100000>;
+ };
+
rk817_codec: codec {
rockchip,mic-in-differential;
};
diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
index fe265bcab50d..fbface720678 100644
--- a/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
+++ b/Documentation/devicetree/bindings/mfd/rohm,bd71815-pmic.yaml
@@ -74,7 +74,7 @@ properties:
rohm,enable-hidden-gpo:
description: |
The BD71815 has undocumented GPO at pin E5. Pin is marked as GND at the
- data-sheet as it's location in the middle of GND pins makes it hard to
+ data-sheet as its location in the middle of GND pins makes it hard to
use on PCB. If your board has managed to use this pin you can enable the
second GPO by defining this property. Dont enable this if you are unsure
about how the E5 pin is connected on your board.
diff --git a/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml b/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml
index 6de74c701635..ee0be32ac020 100644
--- a/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml
+++ b/Documentation/devicetree/bindings/mfd/silergy,sy7636a.yaml
@@ -42,6 +42,7 @@ properties:
vcom:
type: object
$ref: /schemas/regulator/regulator.yaml#
+ unevaluatedProperties: false
description:
The regulator for the compenstation voltage. Enabling/disabling this
enables/disables the entire device.
diff --git a/Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml b/Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml
new file mode 100644
index 000000000000..996bd4a17ca3
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/sprd,ums512-glbreg.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2022 Unisoc Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/sprd,ums512-glbreg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Unisoc System Global Register
+
+maintainers:
+ - Orson Zhai <orsonzhai@gmail.com>
+ - Baolin Wang <baolin.wang7@gmail.com>
+ - Chunyan Zhang <zhang.lyra@gmail.com>
+
+description:
+ Unisoc system global registers provide register map
+ for clocks and some multimedia modules of the SoC.
+
+properties:
+ compatible:
+ items:
+ - const: sprd,ums512-glbregs
+ - const: syscon
+ - const: simple-mfd
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+patternProperties:
+ "^clock-controller@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/clock/sprd,ums512-clk.yaml#
+ description:
+ Clock controller for the SoC clocks.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ ap_apb_regs: syscon@71000000 {
+ compatible = "sprd,ums512-glbregs", "syscon", "simple-mfd";
+ reg = <0x71000000 0x3000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x71000000 0x3000>;
+
+ clock-controller@0 {
+ compatible = "sprd,ums512-apahb-gate";
+ reg = <0x0 0x2000>;
+ #clock-cells = <1>;
+ };
+ };
+
+ - |
+ ap_intc5_regs: syscon@32360000 {
+ compatible = "sprd,ums512-glbregs", "syscon", "simple-mfd";
+ reg = <0x32360000 0x1000>;
+ };
diff --git a/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml b/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
index ec7f0190f46e..d950dd5d48bd 100644
--- a/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stm32-lptimer.yaml
@@ -46,6 +46,7 @@ properties:
pwm:
type: object
+ additionalProperties: false
properties:
compatible:
@@ -58,43 +59,46 @@ properties:
- "#pwm-cells"
- compatible
-patternProperties:
- "^trigger@[0-9]+$":
+ counter:
type: object
+ additionalProperties: false
properties:
compatible:
- const: st,stm32-lptimer-trigger
-
- reg:
- description: Identify trigger hardware block.
- items:
- minimum: 0
- maximum: 2
+ const: st,stm32-lptimer-counter
required:
- compatible
- - reg
- counter:
+ timer:
type: object
+ additionalProperties: false
properties:
compatible:
- const: st,stm32-lptimer-counter
+ const: st,stm32-lptimer-timer
required:
- compatible
- timer:
+patternProperties:
+ "^trigger@[0-9]+$":
type: object
+ additionalProperties: false
properties:
compatible:
- const: st,stm32-lptimer-timer
+ const: st,stm32-lptimer-trigger
+
+ reg:
+ description: Identify trigger hardware block.
+ items:
+ minimum: 0
+ maximum: 2
required:
- compatible
+ - reg
required:
- "#address-cells"
diff --git a/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml
index 10b330d42901..e2c3c3b44abb 100644
--- a/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stm32-timers.yaml
@@ -33,7 +33,7 @@ properties:
items:
- const: int
- reset:
+ resets:
maxItems: 1
dmas:
@@ -46,6 +46,21 @@ properties:
minItems: 1
maxItems: 7
+ interrupts:
+ oneOf:
+ - maxItems: 1
+ - maxItems: 4
+
+ interrupt-names:
+ oneOf:
+ - items:
+ - const: global
+ - items:
+ - const: brk
+ - const: up
+ - const: trg-com
+ - const: cc
+
"#address-cells":
const: 1
@@ -54,6 +69,7 @@ properties:
pwm:
type: object
+ additionalProperties: false
properties:
compatible:
@@ -87,9 +103,21 @@ properties:
- "#pwm-cells"
- compatible
+ counter:
+ type: object
+ additionalProperties: false
+
+ properties:
+ compatible:
+ const: st,stm32-timer-counter
+
+ required:
+ - compatible
+
patternProperties:
"^timer@[0-9]+$":
type: object
+ additionalProperties: false
properties:
compatible:
@@ -107,16 +135,6 @@ patternProperties:
- compatible
- reg
- counter:
- type: object
-
- properties:
- compatible:
- const: st,stm32-timer-counter
-
- required:
- - compatible
-
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/mfd/st,stmfx.yaml b/Documentation/devicetree/bindings/mfd/st,stmfx.yaml
index b2a4e4aa7ff6..b4d54302582f 100644
--- a/Documentation/devicetree/bindings/mfd/st,stmfx.yaml
+++ b/Documentation/devicetree/bindings/mfd/st,stmfx.yaml
@@ -57,6 +57,7 @@ properties:
patternProperties:
"^[a-zA-Z]*-pins$":
type: object
+ additionalProperties: false
allOf:
- $ref: ../pinctrl/pinmux-node.yaml
diff --git a/Documentation/devicetree/bindings/mfd/stericsson,ab8500.yaml b/Documentation/devicetree/bindings/mfd/stericsson,ab8500.yaml
index 623a4b5cd27a..6c8d42f27fe8 100644
--- a/Documentation/devicetree/bindings/mfd/stericsson,ab8500.yaml
+++ b/Documentation/devicetree/bindings/mfd/stericsson,ab8500.yaml
@@ -51,6 +51,7 @@ properties:
provides the reference clock for the entire U8500 system and
the DB8500 counterpart.
type: object
+ additionalProperties: false
properties:
compatible:
@@ -63,6 +64,7 @@ properties:
description: Node describing the AB8500 GPIO controller. A few
GPIO pins available for misc usage.
type: object
+ additionalProperties: false
properties:
compatible:
@@ -78,6 +80,7 @@ properties:
rtc:
description: Node describing the AB8500 battery-backed RTC.
type: object
+ additionalProperties: false
properties:
compatible:
@@ -337,34 +340,40 @@ properties:
description: The voltage for the auxilary LDO regulator 1
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_aux2:
description: The voltage for the auxilary LDO regulator 2
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_aux3:
description: The voltage for the auxilary LDO regulator 3
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_aux4:
description: The voltage for the auxilary LDO regulator 4
only present on AB8505
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_aux5:
description: The voltage for the auxilary LDO regulator 5
only present on AB8505
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_aux6:
description: The voltage for the auxilary LDO regulator 6
only present on AB8505
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
# There is never any AUX7 regulator which is confusing
@@ -373,18 +382,21 @@ properties:
only present on AB8505
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_intcore:
description: The LDO regulator for the internal core voltage
of the AB8500
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_adc:
description: Analog power regulator for the analog to digital converter
ADC, only present on AB8505
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_tvout:
description: The voltage for the TV output regulator, incidentally
@@ -393,33 +405,39 @@ properties:
Only present on AB8500.
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_audio:
description: The LDO regulator for the audio codec output
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_anamic1:
description: The LDO regulator for the analog microphone 1
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_anamic2:
description: The LDO regulator for the analog microphone 2
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_dmic:
description: The LDO regulator for the digital microphone
only present on AB8500
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ldo_ana:
description: Analog power regulator for CSI and DSI interfaces,
Camera Serial Interface CSI and Display Serial Interface DSI.
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
required:
- compatible
@@ -442,16 +460,19 @@ properties:
description: The voltage for the VSMPS1 external regulator
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ext2:
description: The voltage for the VSMPS2 external regulator
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
ab8500_ext3:
description: The voltage for the VSMPS3 external regulator
type: object
$ref: ../regulator/regulator.yaml#
+ unevaluatedProperties: false
required:
- compatible
@@ -462,6 +483,7 @@ patternProperties:
"^pwm@[1-9]+?$":
type: object
$ref: ../pwm/pwm.yaml#
+ unevaluatedProperties: false
description: Represents each of the PWM blocks in the AB8500
properties:
diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml
index fb784045013f..4e4baf53796d 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.yaml
+++ b/Documentation/devicetree/bindings/mfd/syscon.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/syscon.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: System Controller Registers R/W Device Tree Bindings
+title: System Controller Registers R/W
description: |
System controller node represents a register region containing a set
@@ -17,7 +17,7 @@ description: |
and access the registers directly.
maintainers:
- - Lee Jones <lee.jones@linaro.org>
+ - Lee Jones <lee@kernel.org>
select:
properties:
@@ -40,6 +40,8 @@ properties:
- allwinner,sun50i-a64-system-controller
- brcm,cru-clkset
- freecom,fsg-cs2-system-controller
+ - fsl,imx93-aonmix-ns-syscfg
+ - fsl,imx93-wakeupmix-syscfg
- hisilicon,dsa-subctrl
- hisilicon,hi6220-sramctrl
- hisilicon,pcie-sas-subctrl
@@ -59,6 +61,8 @@ properties:
- rockchip,rk3368-qos
- rockchip,rk3399-qos
- rockchip,rk3568-qos
+ - rockchip,rk3588-qos
+ - rockchip,rv1126-qos
- samsung,exynos3-sysreg
- samsung,exynos4-sysreg
- samsung,exynos5-sysreg
@@ -71,7 +75,7 @@ properties:
- contains:
const: syscon
minItems: 2
- maxItems: 4 # Should be enough
+ maxItems: 5 # Should be enough
reg:
maxItems: 1
@@ -80,7 +84,6 @@ properties:
description: |
The size (in bytes) of the IO accesses that should be performed
on the device.
- $ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 4, 8]
hwlocks:
@@ -92,6 +95,18 @@ required:
- compatible
- reg
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: simple-mfd
+ then:
+ properties:
+ compatible:
+ minItems: 3
+ maxItems: 5
+
additionalProperties: true
examples:
diff --git a/Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.yaml b/Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.yaml
index fa86691ebf16..873ee0c0973f 100644
--- a/Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.yaml
+++ b/Documentation/devicetree/bindings/mfd/ti,j721e-system-controller.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/mfd/ti,j721e-system-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: TI J721e System Controller Registers R/W Device Tree Bindings
+title: TI J721e System Controller Registers R/W
description: |
This represents the Control Module registers (CTRL_MMR0) on the SoC.
@@ -48,6 +48,18 @@ patternProperties:
description:
This is the SERDES lane control mux.
+ "^clock-controller@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/clock/ti,am654-ehrpwm-tbclk.yaml#
+ description:
+ Clock provider for TI EHRPWM nodes.
+
+ "phy@[0-9a-f]+$":
+ type: object
+ $ref: /schemas/phy/ti,phy-gmii-sel.yaml#
+ description:
+ The phy node corresponding to the ethernet MAC.
+
required:
- compatible
- reg
@@ -79,5 +91,11 @@ examples:
<0x40c0 0x3>, <0x40c4 0x3>, <0x40c8 0x3>, <0x40cc 0x3>;
/* SERDES4 lane0/1/2/3 select */
};
+
+ clock-controller@4140 {
+ compatible = "ti,am654-ehrpwm-tbclk", "syscon";
+ reg = <0x4140 0x18>;
+ #clock-cells = <1>;
+ };
};
...
diff --git a/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml b/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml
index 6aeedda3be15..3fdd9cb5b347 100644
--- a/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml
+++ b/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml
@@ -38,6 +38,7 @@ properties:
regulators:
type: object
+ additionalProperties: false
description: |
List of child nodes that specify the regulator initialization data.
Child nodes must be named after their hardware counterparts:
diff --git a/Documentation/devicetree/bindings/mfd/x-powers,ac100.yaml b/Documentation/devicetree/bindings/mfd/x-powers,ac100.yaml
index de330c9869ff..309606d2d806 100644
--- a/Documentation/devicetree/bindings/mfd/x-powers,ac100.yaml
+++ b/Documentation/devicetree/bindings/mfd/x-powers,ac100.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/mfd/x-powers,ac100.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: X-Powers AC100 Device Tree Bindings
+title: X-Powers AC100
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml b/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml
index 3a53bae611bc..b7a8747d5fa0 100644
--- a/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml
+++ b/Documentation/devicetree/bindings/mfd/x-powers,axp152.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mfd/x-powers,axp152.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: X-Powers AXP PMIC Device Tree Bindings
+title: X-Powers AXP PMIC
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -93,6 +93,9 @@ properties:
- x-powers,axp809
- x-powers,axp813
- items:
+ - const: x-powers,axp228
+ - const: x-powers,axp221
+ - items:
- const: x-powers,axp805
- const: x-powers,axp806
- items:
@@ -260,6 +263,7 @@ properties:
"^(([a-f])?ldo[0-9]|dcdc[0-7a-e]|ldo(_|-)io(0|1)|(dc1)?sw|rtc(_|-)ldo|drivevbus|dc5ldo)$":
$ref: /schemas/regulator/regulator.yaml#
type: object
+ unevaluatedProperties: false
properties:
regulator-ramp-delay:
diff --git a/Documentation/devicetree/bindings/mips/cpu_irq.txt b/Documentation/devicetree/bindings/mips/cpu_irq.txt
deleted file mode 100644
index f080f06da6d8..000000000000
--- a/Documentation/devicetree/bindings/mips/cpu_irq.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-MIPS CPU interrupt controller
-
-On MIPS the mips_cpu_irq_of_init() helper can be used to initialize the 8 CPU
-IRQs from a devicetree file and create a irq_domain for IRQ controller.
-
-With the irq_domain in place we can describe how the 8 IRQs are wired to the
-platforms internal interrupt controller cascade.
-
-Below is an example of a platform describing the cascade inside the devicetree
-and the code used to load it inside arch_init_irq().
-
-Required properties:
-- compatible : Should be "mti,cpu-interrupt-controller"
-
-Example devicetree:
- cpu-irq: cpu-irq {
- #address-cells = <0>;
-
- interrupt-controller;
- #interrupt-cells = <1>;
-
- compatible = "mti,cpu-interrupt-controller";
- };
-
- intc: intc@200 {
- compatible = "ralink,rt2880-intc";
- reg = <0x200 0x100>;
-
- interrupt-controller;
- #interrupt-cells = <1>;
-
- interrupt-parent = <&cpu-irq>;
- interrupts = <2>;
- };
-
-
-Example platform irq.c:
-static struct of_device_id __initdata of_irq_ids[] = {
- { .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_irq_of_init },
- { .compatible = "ralink,rt2880-intc", .data = intc_of_init },
- {},
-};
-
-void __init arch_init_irq(void)
-{
- of_irq_init(of_irq_ids);
-}
diff --git a/Documentation/devicetree/bindings/mips/lantiq/rcu.txt b/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
index 58d51f480c9e..8ec6191c1712 100644
--- a/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
+++ b/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
@@ -2,7 +2,7 @@ Lantiq XWAY SoC RCU binding
===========================
This binding describes the RCU (reset controller unit) multifunction device,
-where each sub-device has it's own set of registers.
+where each sub-device has its own set of registers.
The RCU register range is used for multiple purposes. Mostly one device
uses one or multiple register exclusively, but for some registers some
diff --git a/Documentation/devicetree/bindings/mips/ralink.yaml b/Documentation/devicetree/bindings/mips/ralink.yaml
index 0588cee25ae9..704b5b595127 100644
--- a/Documentation/devicetree/bindings/mips/ralink.yaml
+++ b/Documentation/devicetree/bindings/mips/ralink.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mips/ralink.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Ralink SoC based Platforms Device Tree Bindings
+title: Ralink SoC based Platforms
maintainers:
- Sergio Paracuellos <sergio.paracuellos@gmail.com>
diff --git a/Documentation/devicetree/bindings/mips/realtek-rtl.yaml b/Documentation/devicetree/bindings/mips/realtek-rtl.yaml
index aadff8ce0f49..f8ac309d2994 100644
--- a/Documentation/devicetree/bindings/mips/realtek-rtl.yaml
+++ b/Documentation/devicetree/bindings/mips/realtek-rtl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mips/realtek-rtl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Realtek RTL83xx/93xx SoC series device tree bindings
+title: Realtek RTL83xx/93xx SoC series
maintainers:
- Bert Vermeulen <bert@biot.com>
diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt b/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
deleted file mode 100644
index 5ec124b138a6..000000000000
--- a/Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
+++ /dev/null
@@ -1,88 +0,0 @@
-Qualcomm Technologies, Inc. FastRPC Driver
-
-The FastRPC implements an IPC (Inter-Processor Communication)
-mechanism that allows for clients to transparently make remote method
-invocations across DSP and APPS boundaries. This enables developers
-to offload tasks to the DSP and free up the application processor for
-other tasks.
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,fastrpc"
-
-- label
- Usage: required
- Value type: <string>
- Definition: should specify the dsp domain name this fastrpc
- corresponds to. must be one of this: "adsp", "mdsp", "sdsp", "cdsp"
-
-- qcom,non-secure-domain:
- Usage: required
- Value type: <boolean>
- Definition: Property to specify that dsp domain is non-secure.
-
-- qcom,vmids:
- Usage: optional
- Value type: <u32 array>
- Definition: Virtual machine IDs for remote processor.
-
-- #address-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 1
-
-- #size-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 0
-
-= COMPUTE BANKS
-Each subnode of the Fastrpc represents compute context banks available
-on the dsp.
-- All Compute context banks MUST contain the following properties:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,fastrpc-compute-cb"
-
-- reg
- Usage: required
- Value type: <u32>
- Definition: Context Bank ID.
-
-- qcom,nsessions:
- Usage: Optional
- Value type: <u32>
- Defination: A value indicating how many sessions can share this
- context bank. Defaults to 1 when this property
- is not specified.
-
-Example:
-
-adsp-pil {
- compatible = "qcom,msm8996-adsp-pil";
- ...
- smd-edge {
- label = "lpass";
- fastrpc {
- compatible = "qcom,fastrpc";
- qcom,smd-channels = "fastrpcsmd-apps-dsp";
- label = "adsp";
- #address-cells = <1>;
- #size-cells = <0>;
-
- cb@1 {
- compatible = "qcom,fastrpc-compute-cb";
- reg = <1>;
- };
-
- cb@2 {
- compatible = "qcom,fastrpc-compute-cb";
- reg = <2>;
- };
- ...
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
new file mode 100644
index 000000000000..d7576f8ac94b
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/qcom,fastrpc.yaml
@@ -0,0 +1,144 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/qcom,fastrpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm FastRPC Driver
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ The FastRPC implements an IPC (Inter-Processor Communication)
+ mechanism that allows for clients to transparently make remote method
+ invocations across DSP and APPS boundaries. This enables developers
+ to offload tasks to the DSP and free up the application processor for
+ other tasks.
+
+properties:
+ compatible:
+ const: qcom,fastrpc
+
+ label:
+ enum:
+ - adsp
+ - mdsp
+ - sdsp
+ - cdsp
+
+ memory-region:
+ maxItems: 1
+ description:
+ Phandle to a node describing memory to be used for remote heap CMA.
+
+ qcom,glink-channels:
+ description:
+ A list of channels tied to this function, used for matching
+ the function to a set of virtual channels.
+ $ref: "/schemas/types.yaml#/definitions/string-array"
+ items:
+ - const: fastrpcglink-apps-dsp
+
+ qcom,non-secure-domain:
+ description:
+ Used to mark the current domain as non-secure.
+ type: boolean
+
+ qcom,smd-channels:
+ description:
+ Channel name used for the RPM communication
+ $ref: "/schemas/types.yaml#/definitions/string-array"
+ items:
+ - const: fastrpcsmd-apps-dsp
+
+ qcom,vmids:
+ description:
+ Virtual machine IDs for remote processor.
+ $ref: "/schemas/types.yaml#/definitions/uint32-array"
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "(compute-)?cb@[0-9]*$":
+ type: object
+
+ description: >
+ Each subnode of the Fastrpc represents compute context banks available on the dsp.
+
+ properties:
+ compatible:
+ const: qcom,fastrpc-compute-cb
+
+ reg:
+ maxItems: 1
+
+ iommus:
+ minItems: 1
+ maxItems: 2
+
+ qcom,nsessions:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 1
+ description: >
+ A value indicating how many sessions can share this context bank.
+
+ required:
+ - compatible
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - label
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+ glink-edge {
+ interrupts-extended = <&ipcc IPCC_CLIENT_LPASS
+ IPCC_MPROC_SIGNAL_GLINK_QMP
+ IRQ_TYPE_EDGE_RISING>;
+ mboxes = <&ipcc IPCC_CLIENT_LPASS
+ IPCC_MPROC_SIGNAL_GLINK_QMP>;
+ label = "lpass";
+ qcom,remote-pid = <2>;
+
+ fastrpc {
+ compatible = "qcom,fastrpc";
+ qcom,glink-channels = "fastrpcglink-apps-dsp";
+ label = "sdsp";
+ qcom,non-secure-domain;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compute-cb@1 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <1>;
+ iommus = <&apps_smmu 0x0541 0x0>;
+ };
+
+ compute-cb@2 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <2>;
+ iommus = <&apps_smmu 0x0542 0x0>;
+ };
+
+ compute-cb@3 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <3>;
+ iommus = <&apps_smmu 0x0543 0x0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml b/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml
new file mode 100644
index 000000000000..1aebeb696ee0
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/qemu,vcpu-stall-detector.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/qemu,vcpu-stall-detector.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: VCPU stall detector
+
+description:
+ This binding describes a CPU stall detector mechanism for virtual CPUs
+ which is accessed through MMIO.
+
+maintainers:
+ - Sebastian Ene <sebastianene@google.com>
+
+properties:
+ compatible:
+ enum:
+ - qemu,vcpu-stall-detector
+
+ reg:
+ maxItems: 1
+
+ clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ The internal clock of the stall detector peripheral measure in Hz used
+ to decrement its internal counter register on each tick.
+ Defaults to 10 if unset.
+ default: 10
+
+ timeout-sec:
+ description: |
+ The stall detector expiration timeout measured in seconds.
+ Defaults to 8 if unset. Please note that it also takes into account the
+ time spent while the VCPU is not running.
+ default: 8
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ vmwdt@9030000 {
+ compatible = "qemu,vcpu-stall-detector";
+ reg = <0x9030000 0x10000>;
+ clock-frequency = <10>;
+ timeout-sec = <8>;
+ };
diff --git a/Documentation/devicetree/bindings/mmc/allwinner,sun4i-a10-mmc.yaml b/Documentation/devicetree/bindings/mmc/allwinner,sun4i-a10-mmc.yaml
index 7803597b6366..02ecc93417ef 100644
--- a/Documentation/devicetree/bindings/mmc/allwinner,sun4i-a10-mmc.yaml
+++ b/Documentation/devicetree/bindings/mmc/allwinner,sun4i-a10-mmc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mmc/allwinner,sun4i-a10-mmc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 MMC Controller Device Tree Bindings
+title: Allwinner A10 MMC Controller
allOf:
- $ref: "mmc-controller.yaml"
diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml
index 60955acb8e57..1c391bec43dc 100644
--- a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml
+++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdhc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mmc/amlogic,meson-mx-sdhc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Amlogic Meson SDHC controller Device Tree Bindings
+title: Amlogic Meson SDHC controller
allOf:
- $ref: "mmc-controller.yaml"
diff --git a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
index 5ecdac9de484..dead421e17d6 100644
--- a/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
+++ b/Documentation/devicetree/bindings/mmc/brcm,sdhci-brcmstb.yaml
@@ -10,9 +10,6 @@ maintainers:
- Al Cooper <alcooperx@gmail.com>
- Florian Fainelli <f.fainelli@gmail.com>
-allOf:
- - $ref: mmc-controller.yaml#
-
properties:
compatible:
oneOf:
@@ -42,23 +39,46 @@ properties:
maxItems: 1
clocks:
- maxItems: 1
- description:
- handle to core clock for the sdhci controller.
+ minItems: 1
+ items:
+ - description: handle to core clock for the sdhci controller
+ - description: handle to improved 150Mhz clock for sdhci controller (Optional clock)
clock-names:
+ minItems: 1
items:
- const: sw_sdio
+ - const: sdio_freq # Optional clock
+
+ clock-frequency:
+ description:
+ Maximum operating frequency of sdio_freq sdhci controller clock
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 100000000
+ maximum: 150000000
sdhci,auto-cmd12:
type: boolean
description: Specifies that controller should use auto CMD12
+allOf:
+ - $ref: mmc-controller.yaml#
+ - if:
+ properties:
+ clock-names:
+ contains:
+ const: sdio_freq
+
+ then:
+ required:
+ - clock-frequency
+
required:
- compatible
- reg
- interrupts
- clocks
+ - clock-names
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
index 4207fed62dfe..8b1a0fdcb5e3 100644
--- a/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/cdns,sdhci.yaml
@@ -8,7 +8,6 @@ title: Cadence SD/SDIO/eMMC Host Controller (SD4HC)
maintainers:
- Masahiro Yamada <yamada.masahiro@socionext.com>
- - Piotr Sroka <piotrs@cadence.com>
allOf:
- $ref: mmc-controller.yaml
diff --git a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
deleted file mode 100644
index 753e9d7d8956..000000000000
--- a/Documentation/devicetree/bindings/mmc/exynos-dw-mshc.txt
+++ /dev/null
@@ -1,94 +0,0 @@
-* Samsung Exynos specific extensions to the Synopsys Designware Mobile
- Storage Host Controller
-
-The Synopsys designware mobile storage host controller is used to interface
-a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
-differences between the core Synopsys dw mshc controller properties described
-by synopsys-dw-mshc.txt and the properties used by the Samsung Exynos specific
-extensions to the Synopsys Designware Mobile Storage Host Controller.
-
-Required Properties:
-
-* compatible: should be
- - "samsung,exynos4210-dw-mshc": for controllers with Samsung Exynos4210
- specific extensions.
- - "samsung,exynos4412-dw-mshc": for controllers with Samsung Exynos4412
- specific extensions.
- - "samsung,exynos5250-dw-mshc": for controllers with Samsung Exynos5250
- specific extensions.
- - "samsung,exynos5420-dw-mshc": for controllers with Samsung Exynos5420
- specific extensions.
- - "samsung,exynos7-dw-mshc": for controllers with Samsung Exynos7
- specific extensions.
- - "samsung,exynos7-dw-mshc-smu": for controllers with Samsung Exynos7
- specific extensions having an SMU.
- - "axis,artpec8-dw-mshc": for controllers with ARTPEC-8 specific
- extensions.
-
-* samsung,dw-mshc-ciu-div: Specifies the divider value for the card interface
- unit (ciu) clock. This property is applicable only for Exynos5 SoC's and
- ignored for Exynos4 SoC's. The valid range of divider value is 0 to 7.
-
-* samsung,dw-mshc-sdr-timing: Specifies the value of CIU clock phase shift value
- in transmit mode and CIU clock phase shift value in receive mode for single
- data rate mode operation. Refer notes below for the order of the cells and the
- valid values.
-
-* samsung,dw-mshc-ddr-timing: Specifies the value of CUI clock phase shift value
- in transmit mode and CIU clock phase shift value in receive mode for double
- data rate mode operation. Refer notes below for the order of the cells and the
- valid values.
-* samsung,dw-mshc-hs400-timing: Specifies the value of CIU TX and RX clock phase
- shift value for hs400 mode operation.
-
- Notes for the sdr-timing and ddr-timing values:
-
- The order of the cells should be
- - First Cell: CIU clock phase shift value for tx mode.
- - Second Cell: CIU clock phase shift value for rx mode.
-
- Valid values for SDR and DDR CIU clock timing for Exynos5250:
- - valid value for tx phase shift and rx phase shift is 0 to 7.
- - when CIU clock divider value is set to 3, all possible 8 phase shift
- values can be used.
- - if CIU clock divider value is 0 (that is divide by 1), both tx and rx
- phase shift clocks should be 0.
-
-* samsung,read-strobe-delay: RCLK (Data strobe) delay to control HS400 mode
- (Latency value for delay line in Read path)
-
-Required properties for a slot (Deprecated - Recommend to use one slot per host):
-
-* gpios: specifies a list of gpios used for command, clock and data bus. The
- first gpio is the command line and the second gpio is the clock line. The
- rest of the gpios (depending on the bus-width property) are the data lines in
- no particular order. The format of the gpio specifier depends on the gpio
- controller.
-(Deprecated - Refer to Documentation/devicetree/bindings/pinctrl/samsung-pinctrl.txt)
-
-Example:
-
- The MSHC controller node can be split into two portions, SoC specific and
- board specific portions as listed below.
-
- dwmmc0@12200000 {
- compatible = "samsung,exynos5250-dw-mshc";
- reg = <0x12200000 0x1000>;
- interrupts = <0 75 0>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
- dwmmc0@12200000 {
- cap-mmc-highspeed;
- cap-sd-highspeed;
- broken-cd;
- fifo-depth = <0x80>;
- card-detect-delay = <200>;
- samsung,dw-mshc-ciu-div = <3>;
- samsung,dw-mshc-sdr-timing = <2 3>;
- samsung,dw-mshc-ddr-timing = <1 2>;
- samsung,dw-mshc-hs400-timing = <0 2>;
- samsung,read-strobe-delay = <90>;
- bus-width = <8>;
- };
diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.yaml b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
index b17d454442b3..fd347126449a 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-card.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-card.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mmc/mmc-card.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MMC Card / eMMC Generic Device Tree Bindings
+title: MMC Card / eMMC Generic
maintainers:
- Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
index ff5ce89e5111..802e3ca8be4d 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
+++ b/Documentation/devicetree/bindings/mmc/mmc-controller.yaml
@@ -88,11 +88,18 @@ properties:
default: 1
max-frequency:
- description:
- Maximum operating frequency of the bus.
+ description: |
+ Maximum operating frequency of the bus:
+ - for eMMC, the maximum supported frequency is 200MHz,
+ - for SD/SDIO cards the SDR104 mode has a max supported
+ frequency of 208MHz,
+ - some mmc host controllers do support a max frequency upto
+ 384MHz.
+ So, lets keep the maximum supported value here.
+
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 400000
- maximum: 200000000
+ maximum: 384000000
disable-wp:
$ref: /schemas/types.yaml#/definitions/flag
diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
deleted file mode 100644
index 5e74db69f581..000000000000
--- a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.txt
+++ /dev/null
@@ -1,29 +0,0 @@
-MMC/SD/SDIO slot directly connected to a SPI bus
-
-This file documents differences between the core properties described
-by mmc.txt and the properties used by the mmc_spi driver.
-
-Required properties:
-- spi-max-frequency : maximum frequency for this device (Hz).
-
-Optional properties:
-- voltage-ranges : two cells are required, first cell specifies minimum
- slot voltage (mV), second cell specifies maximum slot voltage (mV).
- Several ranges could be specified. If not provided, 3.2v..3.4v is assumed.
-- gpios : may specify GPIOs in this order: Card-Detect GPIO,
- Write-Protect GPIO. Note that this does not follow the
- binding from mmc.txt, for historical reasons.
-
-Example:
-
- mmc-slot@0 {
- compatible = "fsl,mpc8323rdb-mmc-slot",
- "mmc-spi-slot";
- reg = <0>;
- gpios = <&qe_pio_d 14 1
- &qe_pio_d 15 0>;
- voltage-ranges = <3300 3300>;
- spi-max-frequency = <50000000>;
- interrupts = <42>;
- interrupt-parent = <&PIC>;
- };
diff --git a/Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml
new file mode 100644
index 000000000000..c0662ce9946d
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/mmc-spi-slot.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/mmc-spi-slot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MMC/SD/SDIO slot directly connected to a SPI bus
+
+maintainers:
+ - Ulf Hansson <ulf.hansson@linaro.org>
+
+allOf:
+ - $ref: "mmc-controller.yaml"
+ - $ref: /schemas/spi/spi-peripheral-props.yaml
+
+description: |
+ The extra properties used by an mmc connected via SPI.
+
+properties:
+ compatible:
+ const: mmc-spi-slot
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ voltage-ranges:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ Two cells are required, first cell specifies minimum slot voltage (mV),
+ second cell specifies maximum slot voltage (mV).
+ items:
+ - description: |
+ value for minimum slot voltage in mV
+ default: 3200
+ - description: |
+ value for maximum slot voltage in mV
+ default: 3400
+
+ gpios:
+ description: |
+ For historical reasons, this does not follow the generic mmc-controller
+ binding.
+ minItems: 1
+ items:
+ - description: Card-Detect GPIO
+ - description: Write-Protect GPIO
+
+required:
+ - compatible
+ - reg
+ - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ mmc@0 {
+ compatible = "mmc-spi-slot";
+ reg = <0>;
+ gpios = <&gpio 14 GPIO_ACTIVE_LOW>, <&gpio 15 GPIO_ACTIVE_HIGH>;
+ voltage-ranges = <3300 3300>;
+ spi-max-frequency = <50000000>;
+ interrupts = <42>;
+ interrupt-parent = <&PIC>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
index 2a2e9fa8c188..d8e1e2e9adf2 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
@@ -20,6 +20,7 @@ properties:
- mediatek,mt2701-mmc
- mediatek,mt2712-mmc
- mediatek,mt6779-mmc
+ - mediatek,mt6795-mmc
- mediatek,mt7620-mmc
- mediatek,mt7622-mmc
- mediatek,mt8135-mmc
@@ -30,13 +31,11 @@ properties:
- const: mediatek,mt7623-mmc
- const: mediatek,mt2701-mmc
- items:
- - const: mediatek,mt8186-mmc
- - const: mediatek,mt8183-mmc
- - items:
- - const: mediatek,mt8192-mmc
- - const: mediatek,mt8183-mmc
- - items:
- - const: mediatek,mt8195-mmc
+ - enum:
+ - mediatek,mt8186-mmc
+ - mediatek,mt8188-mmc
+ - mediatek,mt8192-mmc
+ - mediatek,mt8195-mmc
- const: mediatek,mt8183-mmc
reg:
@@ -72,12 +71,27 @@ properties:
- const: ahb_cg
interrupts:
- maxItems: 1
+ description:
+ Should at least contain MSDC GIC interrupt. To support SDIO in-band wakeup, an extended
+ interrupt is required and be configured as wakeup source irq.
+ minItems: 1
+ maxItems: 2
+
+ interrupt-names:
+ items:
+ - const: msdc
+ - const: sdio_wakeup
pinctrl-names:
+ description:
+ Should at least contain default and state_uhs. To support SDIO in-band wakeup, dat1 pin
+ will be switched between GPIO mode and SDIO DAT1 mode, state_eint is mandatory in this
+ scenario.
+ minItems: 2
items:
- const: default
- const: state_uhs
+ - const: state_eint
pinctrl-0:
description:
@@ -89,6 +103,11 @@ properties:
should contain uhs mode pin ctrl.
maxItems: 1
+ pinctrl-2:
+ description:
+ should switch dat1 pin to GPIO mode.
+ maxItems: 1
+
assigned-clocks:
description:
PLL of the source clock.
@@ -208,4 +227,32 @@ examples:
mediatek,hs400-cmd-resp-sel-rising;
};
+ mmc3: mmc@11260000 {
+ compatible = "mediatek,mt8173-mmc";
+ reg = <0x11260000 0x1000>;
+ clock-names = "source", "hclk";
+ clocks = <&pericfg CLK_PERI_MSDC30_3>,
+ <&topckgen CLK_TOP_MSDC50_2_H_SEL>;
+ interrupt-names = "msdc", "sdio_wakeup";
+ interrupts-extended = <&gic GIC_SPI 74 IRQ_TYPE_LEVEL_LOW 0>,
+ <&pio 23 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default", "state_uhs", "state_eint";
+ pinctrl-0 = <&mmc2_pins_default>;
+ pinctrl-1 = <&mmc2_pins_uhs>;
+ pinctrl-2 = <&mmc2_pins_eint>;
+ bus-width = <4>;
+ max-frequency = <200000000>;
+ cap-sd-highspeed;
+ sd-uhs-sdr104;
+ keep-power-in-suspend;
+ wakeup-source;
+ cap-sdio-irq;
+ no-mmc;
+ no-sd;
+ non-removable;
+ vmmc-supply = <&sdio_fixed_3v3>;
+ vqmmc-supply = <&mt6397_vgp3_reg>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ };
+
...
diff --git a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
index 9ac4986988c5..0424b06cb655 100644
--- a/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
+++ b/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml
@@ -56,11 +56,15 @@ properties:
- renesas,sdhi-r8a77980 # R-Car V3H
- renesas,sdhi-r8a77990 # R-Car E3
- renesas,sdhi-r8a77995 # R-Car D3
- - renesas,sdhi-r8a779a0 # R-Car V3U
- renesas,sdhi-r9a07g043 # RZ/G2UL
- renesas,sdhi-r9a07g044 # RZ/G2{L,LC}
- renesas,sdhi-r9a07g054 # RZ/V2L
- const: renesas,rcar-gen3-sdhi # R-Car Gen3 or RZ/G2
+ - items:
+ - enum:
+ - renesas,sdhi-r8a779a0 # R-Car V3U
+ - renesas,sdhi-r8a779f0 # R-Car S4-8
+ - const: renesas,rcar-gen4-sdhi # R-Car Gen4
reg:
maxItems: 1
@@ -85,6 +89,9 @@ properties:
- tx
- rx
+ iommus:
+ maxItems: 1
+
power-domains:
maxItems: 1
@@ -141,6 +148,7 @@ allOf:
enum:
- renesas,rcar-gen2-sdhi
- renesas,rcar-gen3-sdhi
+ - renesas,rcar-gen4-sdhi
then:
properties:
clocks:
diff --git a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
index 54fb59820d2b..95f59a5e3576 100644
--- a/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
+++ b/Documentation/devicetree/bindings/mmc/rockchip-dw-mshc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mmc/rockchip-dw-mshc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip designware mobile storage host controller device tree bindings
+title: Rockchip designware mobile storage host controller
description:
Rockchip uses the Synopsys designware mobile storage host controller
@@ -32,6 +32,7 @@ properties:
- rockchip,px30-dw-mshc
- rockchip,rk1808-dw-mshc
- rockchip,rk3036-dw-mshc
+ - rockchip,rk3128-dw-mshc
- rockchip,rk3228-dw-mshc
- rockchip,rk3308-dw-mshc
- rockchip,rk3328-dw-mshc
@@ -39,6 +40,7 @@ properties:
- rockchip,rk3399-dw-mshc
- rockchip,rk3568-dw-mshc
- rockchip,rv1108-dw-mshc
+ - rockchip,rv1126-dw-mshc
- const: rockchip,rk3288-dw-mshc
reg:
diff --git a/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
new file mode 100644
index 000000000000..fdaa18481aa0
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/samsung,exynos-dw-mshc.yaml
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/samsung,exynos-dw-mshc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+ Samsung Exynos SoC specific extensions to the Synopsys Designware Mobile
+ Storage Host Controller
+
+maintainers:
+ - Jaehoon Chung <jh80.chung@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos4210-dw-mshc
+ - samsung,exynos4412-dw-mshc
+ - samsung,exynos5250-dw-mshc
+ - samsung,exynos5420-dw-mshc
+ - samsung,exynos5420-dw-mshc-smu
+ - samsung,exynos7-dw-mshc
+ - samsung,exynos7-dw-mshc-smu
+ - axis,artpec8-dw-mshc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+ description:
+ Handle to "biu" and "ciu" clocks for the
+ bus interface unit clock and the card interface unit clock.
+
+ clock-names:
+ items:
+ - const: biu
+ - const: ciu
+
+ samsung,dw-mshc-ciu-div:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 7
+ description:
+ The divider value for the card interface unit (ciu) clock.
+
+ samsung,dw-mshc-ddr-timing:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: CIU clock phase shift value for tx mode
+ minimum: 0
+ maximum: 7
+ - description: CIU clock phase shift value for rx mode
+ minimum: 0
+ maximum: 7
+ description:
+ The value of CUI clock phase shift value in transmit mode and CIU clock
+ phase shift value in receive mode for double data rate mode operation.
+ See also samsung,dw-mshc-hs400-timing property.
+
+ samsung,dw-mshc-hs400-timing:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: CIU clock phase shift value for tx mode
+ minimum: 0
+ maximum: 7
+ - description: CIU clock phase shift value for rx mode
+ minimum: 0
+ maximum: 7
+ description: |
+ The value of CIU TX and RX clock phase shift value for HS400 mode
+ operation.
+ Valid values for SDR and DDR CIU clock timing::
+ - valid value for tx phase shift and rx phase shift is 0 to 7.
+ - when CIU clock divider value is set to 3, all possible 8 phase shift
+ values can be used.
+ - if CIU clock divider value is 0 (that is divide by 1), both tx and rx
+ phase shift clocks should be 0.
+ If missing, values from samsung,dw-mshc-ddr-timing property are used.
+
+ samsung,dw-mshc-sdr-timing:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: CIU clock phase shift value for tx mode
+ minimum: 0
+ maximum: 7
+ - description: CIU clock phase shift value for rx mode
+ minimum: 0
+ maximum: 7
+ description:
+ The value of CIU clock phase shift value in transmit mode and CIU clock
+ phase shift value in receive mode for single data rate mode operation.
+ See also samsung,dw-mshc-hs400-timing property.
+
+ samsung,read-strobe-delay:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ RCLK (Data strobe) delay to control HS400 mode (Latency value for delay
+ line in Read path). If missing, default from hardware is used.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - samsung,dw-mshc-ddr-timing
+ - samsung,dw-mshc-sdr-timing
+
+allOf:
+ - $ref: "synopsys-dw-mshc-common.yaml#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos5250-dw-mshc
+ - samsung,exynos5420-dw-mshc
+ - samsung,exynos7-dw-mshc
+ - samsung,exynos7-dw-mshc-smu
+ - axis,artpec8-dw-mshc
+ then:
+ required:
+ - samsung,dw-mshc-ciu-div
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5420.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ mmc@12220000 {
+ compatible = "samsung,exynos5420-dw-mshc";
+ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0x12220000 0x1000>;
+ clocks = <&clock CLK_MMC2>, <&clock CLK_SCLK_MMC2>;
+ clock-names = "biu", "ciu";
+ fifo-depth = <0x40>;
+ card-detect-delay = <200>;
+ samsung,dw-mshc-ciu-div = <3>;
+ samsung,dw-mshc-sdr-timing = <0 4>;
+ samsung,dw-mshc-ddr-timing = <0 2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_cd &sd2_wp &sd2_bus1 &sd2_bus4>;
+ bus-width = <4>;
+ cap-sd-highspeed;
+ max-frequency = <200000000>;
+ vmmc-supply = <&ldo19_reg>;
+ vqmmc-supply = <&ldo13_reg>;
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ sd-uhs-ddr50;
+ };
diff --git a/Documentation/devicetree/bindings/mmc/samsung,s3c6410-sdhci.yaml b/Documentation/devicetree/bindings/mmc/samsung,s3c6410-sdhci.yaml
new file mode 100644
index 000000000000..5d873a60f650
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/samsung,s3c6410-sdhci.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/samsung,s3c6410-sdhci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SoC SDHCI Controller
+
+maintainers:
+ - Jaehoon Chung <jh80.chung@samsung.com>
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+properties:
+ compatible:
+ enum:
+ - samsung,s3c6410-sdhci
+ - samsung,exynos4210-sdhci
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ maxItems: 5
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: hsmmc
+ - pattern: "^mmc_busclk.[0-3]$"
+ - pattern: "^mmc_busclk.[0-3]$"
+ - pattern: "^mmc_busclk.[0-3]$"
+ - pattern: "^mmc_busclk.[0-3]$"
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+allOf:
+ - $ref: mmc-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - samsung,exynos4210-sdhci
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ items:
+ - const: hsmmc
+ - const: mmc_busclk.2
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos4.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ mmc@12510000 {
+ compatible = "samsung,exynos4210-sdhci";
+ reg = <0x12510000 0x100>;
+ interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clock CLK_SDMMC0>, <&clock CLK_SCLK_MMC0>;
+ clock-names = "hsmmc", "mmc_busclk.2";
+ bus-width = <4>;
+ cd-gpios = <&gpx3 4 GPIO_ACTIVE_LOW>;
+ pinctrl-0 = <&sd2_clk &sd2_cmd &sd2_bus4 &sdhci2_cd>;
+ pinctrl-names = "default";
+ vmmc-supply = <&ldo21_reg>;
+ };
diff --git a/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt b/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt
deleted file mode 100644
index 42e0a9afa100..000000000000
--- a/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-* Samsung's SDHCI Controller device tree bindings
-
-Samsung's SDHCI controller is used as a connectivity interface with external
-MMC, SD and eMMC storage mediums. This file documents differences between the
-core mmc properties described by mmc.txt and the properties used by the
-Samsung implementation of the SDHCI controller.
-
-Required SoC Specific Properties:
-- compatible: should be one of the following
- - "samsung,s3c6410-sdhci": For controllers compatible with s3c6410 sdhci
- controller.
- - "samsung,exynos4210-sdhci": For controllers compatible with Exynos4 sdhci
- controller.
-
-Required Board Specific Properties:
-- pinctrl-0: Should specify pin control groups used for this controller.
-- pinctrl-names: Should contain only one value - "default".
-
-Example:
- sdhci@12530000 {
- compatible = "samsung,exynos4210-sdhci";
- reg = <0x12530000 0x100>;
- interrupts = <0 75 0>;
- bus-width = <4>;
- cd-gpios = <&gpk2 2 0>;
- pinctrl-names = "default";
- pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>;
- };
-
- Note: This example shows both SoC specific and board specific properties
- in a single device node. The properties can be actually be separated
- into SoC specific node and board specific node.
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
index 0ab07759b472..ea9121fb188d 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
+++ b/Documentation/devicetree/bindings/mmc/sdhci-am654.yaml
@@ -51,6 +51,9 @@ properties:
sdhci-caps-mask: true
+ dma-coherent:
+ type: boolean
+
# PHY output tap delays:
# Used to delay the data valid window and align it to the sampling clock.
# Binding needs to be provided for each supported speed mode otherwise the
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
index e4236334e748..a96f143479c7 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
@@ -17,6 +17,9 @@ description:
properties:
compatible:
oneOf:
+ - enum:
+ - qcom,sdhci-msm-v4
+ deprecated: true
- items:
- enum:
- qcom,apq8084-sdhci
@@ -27,31 +30,33 @@ properties:
- qcom,msm8992-sdhci
- qcom,msm8994-sdhci
- qcom,msm8996-sdhci
+ - qcom,msm8998-sdhci
+ - const: qcom,sdhci-msm-v4 # for sdcc versions less than 5.0
+ - items:
+ - enum:
- qcom,qcs404-sdhci
- qcom,sc7180-sdhci
- qcom,sc7280-sdhci
- qcom,sdm630-sdhci
+ - qcom,sdm670-sdhci
- qcom,sdm845-sdhci
- qcom,sdx55-sdhci
- qcom,sdx65-sdhci
+ - qcom,sm6115-sdhci
- qcom,sm6125-sdhci
- qcom,sm6350-sdhci
- qcom,sm8150-sdhci
- qcom,sm8250-sdhci
- - enum:
- - qcom,sdhci-msm-v4 # for sdcc versions less than 5.0
- - qcom,sdhci-msm-v5 # for sdcc version 5.0
- - items:
- - const: qcom,sdhci-msm-v4 # Deprecated (only for backward compatibility)
- # for sdcc versions less than 5.0
+ - qcom,sm8450-sdhci
+ - const: qcom,sdhci-msm-v5 # for sdcc version 5.0
reg:
minItems: 1
- items:
- - description: Host controller register map
- - description: SD Core register map
- - description: CQE register map
- - description: Inline Crypto Engine register map
+ maxItems: 4
+
+ reg-names:
+ minItems: 1
+ maxItems: 4
clocks:
minItems: 3
@@ -93,6 +98,13 @@ properties:
description:
Should specify pin control groups used for this controller.
+ pinctrl-1:
+ description:
+ Should specify sleep pin control groups used for this controller.
+
+ resets:
+ maxItems: 1
+
qcom,ddr-config:
$ref: /schemas/types.yaml#/definitions/uint32
description: platform specific settings for DDR_CONFIG reg.
@@ -121,6 +133,18 @@ properties:
description: A phandle to sdhci power domain node
maxItems: 1
+ mmc-ddr-1_8v: true
+
+ mmc-hs200-1_8v: true
+
+ mmc-hs400-1_8v: true
+
+ bus-width: true
+
+ max-frequency: true
+
+ operating-points-v2: true
+
patternProperties:
'^opp-table(-[a-z0-9]+)?$':
if:
@@ -140,7 +164,47 @@ required:
- clock-names
- interrupts
-additionalProperties: true
+allOf:
+ - $ref: mmc-controller.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sdhci-msm-v4
+ then:
+ properties:
+ reg:
+ minItems: 2
+ items:
+ - description: Host controller register map
+ - description: SD Core register map
+ - description: CQE register map
+ - description: Inline Crypto Engine register map
+ reg-names:
+ minItems: 2
+ items:
+ - const: hc
+ - const: core
+ - const: cqhci
+ - const: ice
+ else:
+ properties:
+ reg:
+ minItems: 1
+ items:
+ - description: Host controller register map
+ - description: CQE register map
+ - description: Inline Crypto Engine register map
+ reg-names:
+ minItems: 1
+ items:
+ - const: hc
+ - const: cqhci
+ - const: ice
+
+unevaluatedProperties: false
examples:
- |
@@ -149,7 +213,7 @@ examples:
#include <dt-bindings/clock/qcom,rpmh.h>
#include <dt-bindings/power/qcom-rpmpd.h>
- sdhc_2: sdhci@8804000 {
+ sdhc_2: mmc@8804000 {
compatible = "qcom,sm8250-sdhci", "qcom,sdhci-msm-v5";
reg = <0 0x08804000 0 0x1000>;
diff --git a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
index c033ac3f147d..4741864da48e 100644
--- a/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/allwinner,sun4i-a10-nand.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/allwinner,sun4i-a10-nand.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 NAND Controller Device Tree Bindings
+title: Allwinner A10 NAND Controller
allOf:
- $ref: "nand-controller.yaml"
diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
deleted file mode 100644
index 5794ab1147c1..000000000000
--- a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
-
-This file documents the properties in addition to those available in
-the MTD NAND bindings.
-
-Required properties:
-- compatible : contains one of:
- - "amlogic,meson-gxl-nfc"
- - "amlogic,meson-axg-nfc"
-- clocks :
- A list of phandle + clock-specifier pairs for the clocks listed
- in clock-names.
-
-- clock-names: Should contain the following:
- "core" - NFC module gate clock
- "device" - device clock from eMMC sub clock controller
- "rx" - rx clock phase
- "tx" - tx clock phase
-
-- amlogic,mmc-syscon : Required for NAND clocks, it's shared with SD/eMMC
- controller port C
-
-Optional children nodes:
-Children nodes represent the available nand chips.
-
-Other properties:
-see Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.
-
-Example demonstrate on AXG SoC:
-
- sd_emmc_c_clkc: mmc@7000 {
- compatible = "amlogic,meson-axg-mmc-clkc", "syscon";
- reg = <0x0 0x7000 0x0 0x800>;
- };
-
- nand-controller@7800 {
- compatible = "amlogic,meson-axg-nfc";
- reg = <0x0 0x7800 0x0 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
-
- clocks = <&clkc CLKID_SD_EMMC_C>,
- <&sd_emmc_c_clkc CLKID_MMC_DIV>,
- <&sd_emmc_c_clkc CLKID_MMC_PHASE_RX>,
- <&sd_emmc_c_clkc CLKID_MMC_PHASE_TX>;
- clock-names = "core", "device", "rx", "tx";
- amlogic,mmc-syscon = <&sd_emmc_c_clkc>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&nand_pins>;
-
- nand@0 {
- reg = <0>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- nand-on-flash-bbt;
- };
- };
diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
new file mode 100644
index 000000000000..28fb9a7dd70f
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/amlogic,meson-nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
+
+allOf:
+ - $ref: nand-controller.yaml
+
+maintainers:
+ - liang.yang@amlogic.com
+
+properties:
+ compatible:
+ enum:
+ - amlogic,meson-gxl-nfc
+ - amlogic,meson-axg-nfc
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: nfc
+ - const: emmc
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+
+ clock-names:
+ items:
+ - const: core
+ - const: device
+
+patternProperties:
+ "^nand@[0-7]$":
+ type: object
+ properties:
+ reg:
+ minimum: 0
+ maximum: 1
+
+ nand-ecc-mode:
+ const: hw
+
+ nand-ecc-step-size:
+ const: 1024
+
+ nand-ecc-strength:
+ enum: [8, 16, 24, 30, 40, 50, 60]
+ description: |
+ The ECC configurations that can be supported are as follows.
+ meson-gxl-nfc 8, 16, 24, 30, 40, 50, 60
+ meson-axg-nfc 8
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/axg-clkc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ nand-controller@ffe07800 {
+ compatible = "amlogic,meson-axg-nfc";
+ reg = <0xffe07800 0x100>, <0xffe07000 0x800>;
+ reg-names = "nfc", "emmc";
+ interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_SD_EMMC_C>, <&clkc CLKID_FCLK_DIV2>;
+ clock-names = "core", "device";
+
+ pinctrl-0 = <&nand_pins>;
+ pinctrl-names = "default";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nand@0 {
+ reg = <0>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml
index b32876933269..f013fb976d95 100644
--- a/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml
+++ b/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/arasan,nand-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Arasan NAND Flash Controller with ONFI 3.1 support device tree bindings
+title: Arasan NAND Flash Controller with ONFI 3.1 support
allOf:
- $ref: "nand-controller.yaml"
diff --git a/Documentation/devicetree/bindings/mtd/arm,pl353-nand-r2p1.yaml b/Documentation/devicetree/bindings/mtd/arm,pl353-nand-r2p1.yaml
index 5f126bb9b202..023f3ef0fa13 100644
--- a/Documentation/devicetree/bindings/mtd/arm,pl353-nand-r2p1.yaml
+++ b/Documentation/devicetree/bindings/mtd/arm,pl353-nand-r2p1.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/arm,pl353-nand-r2p1.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: PL353 NAND Controller device tree bindings
+title: PL353 NAND Controller
allOf:
- $ref: "nand-controller.yaml"
diff --git a/Documentation/devicetree/bindings/mtd/intel,lgm-nand.yaml b/Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml
index 30e0c66ab0eb..741c66ee06c3 100644
--- a/Documentation/devicetree/bindings/mtd/intel,lgm-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml
@@ -1,10 +1,10 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/mtd/intel,lgm-nand.yaml#
+$id: http://devicetree.org/schemas/mtd/intel,lgm-ebunand.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel LGM SoC NAND Controller Device Tree Bindings
+title: Intel LGM SoC NAND Controller
allOf:
- $ref: "nand-controller.yaml"
@@ -14,7 +14,7 @@ maintainers:
properties:
compatible:
- const: intel,lgm-nand
+ const: intel,lgm-ebunand
reg:
maxItems: 6
@@ -51,7 +51,7 @@ patternProperties:
properties:
reg:
minimum: 0
- maximum: 7
+ maximum: 1
nand-ecc-mode: true
@@ -75,7 +75,7 @@ additionalProperties: false
examples:
- |
nand-controller@e0f00000 {
- compatible = "intel,lgm-nand";
+ compatible = "intel,lgm-ebunand";
reg = <0xe0f00000 0x100>,
<0xe1000000 0x300>,
<0xe1400000 0x8000>,
diff --git a/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
index 2cdf6bf3dc4a..8cc2a7ceb5fb 100644
--- a/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
+++ b/Documentation/devicetree/bindings/mtd/microchip,mchp48l640.yaml
@@ -22,13 +22,14 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
required:
- compatible
- reg
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/mtd/mtd.yaml b/Documentation/devicetree/bindings/mtd/mtd.yaml
index 376b679cfc70..3498e485679b 100644
--- a/Documentation/devicetree/bindings/mtd/mtd.yaml
+++ b/Documentation/devicetree/bindings/mtd/mtd.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/mtd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MTD (Memory Technology Device) Device Tree Bindings
+title: MTD (Memory Technology Device)
maintainers:
- Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/Documentation/devicetree/bindings/mtd/mxc-nand.yaml b/Documentation/devicetree/bindings/mtd/mxc-nand.yaml
index 73b86f2226c7..66da1b476ab7 100644
--- a/Documentation/devicetree/bindings/mtd/mxc-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/mxc-nand.yaml
@@ -37,6 +37,4 @@ examples:
compatible = "fsl,imx27-nand";
reg = <0xd8000000 0x1000>;
interrupts = <29>;
- nand-bus-width = <8>;
- nand-ecc-mode = "hw";
};
diff --git a/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml b/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml
index 804479999ccb..f92e7234deab 100644
--- a/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml
+++ b/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/mxicy,nand-ecc-engine.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Macronix NAND ECC engine device tree bindings
+title: Macronix NAND ECC engine
maintainers:
- Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/Documentation/devicetree/bindings/mtd/partitions/arm,arm-firmware-suite.txt b/Documentation/devicetree/bindings/mtd/partitions/arm,arm-firmware-suite.txt
deleted file mode 100644
index d5c5616f6db5..000000000000
--- a/Documentation/devicetree/bindings/mtd/partitions/arm,arm-firmware-suite.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-ARM AFS - ARM Firmware Suite Partitions
-=======================================
-
-The ARM Firmware Suite is a flash partitioning system found on the
-ARM reference designs: Integrator AP, Integrator CP, Versatile AB,
-Versatile PB, the RealView family, Versatile Express and Juno.
-
-Required properties:
-- compatible : (required) must be "arm,arm-firmware-suite"
-
-Example:
-
-flash@0 {
- partitions {
- compatible = "arm,arm-firmware-suite";
- };
-};
diff --git a/Documentation/devicetree/bindings/mtd/partitions/arm,arm-firmware-suite.yaml b/Documentation/devicetree/bindings/mtd/partitions/arm,arm-firmware-suite.yaml
new file mode 100644
index 000000000000..76c88027b6d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/arm,arm-firmware-suite.yaml
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/arm,arm-firmware-suite.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM Firmware Suite (AFS) Partitions
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |
+ The ARM Firmware Suite is a flash partitioning system found on the
+ ARM reference designs: Integrator AP, Integrator CP, Versatile AB,
+ Versatile PB, the RealView family, Versatile Express and Juno.
+
+properties:
+ compatible:
+ const: arm,arm-firmware-suite
+
+additionalProperties: false
+
+examples:
+ - |
+ partitions {
+ compatible = "arm,arm-firmware-suite";
+ };
+...
diff --git a/Documentation/devicetree/bindings/mtd/partitions/partition.yaml b/Documentation/devicetree/bindings/mtd/partitions/partition.yaml
index e1ac08064425..f1a02d840b12 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/partition.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/partition.yaml
@@ -11,6 +11,17 @@ description: |
relative offset and size specified. Depending on partition function extra
properties can be used.
+ A partition may be dynamically allocated by a specific parser at runtime.
+ In this specific case, a specific suffix is required to the node name.
+ Everything after 'partition-' will be used as the partition name to compare
+ with the one dynamically allocated by the specific parser.
+ If the partition contains invalid char a label can be provided that will
+ be used instead of the node name to make the comparison.
+ This is used to assign an OF node to the dynamiccally allocated partition
+ so that subsystem like NVMEM can provide an OF node and declare NVMEM cells.
+ The OF node will be assigned only if the partition label declared match the
+ one assigned by the parser at runtime.
+
maintainers:
- Rafał Miłecki <rafal@milecki.pl>
@@ -41,7 +52,12 @@ properties:
immune to paired-pages corruptions
type: boolean
-required:
- - reg
+if:
+ not:
+ required: [ reg ]
+then:
+ properties:
+ $nodename:
+ pattern: '^partition-.*$'
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml b/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml
index cf3f8c1e035d..dc07909af023 100644
--- a/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml
+++ b/Documentation/devicetree/bindings/mtd/partitions/qcom,smem-part.yaml
@@ -19,6 +19,10 @@ properties:
compatible:
const: qcom,smem-part
+patternProperties:
+ "^partition-[0-9a-z]+$":
+ $ref: partition.yaml#
+
required:
- compatible
@@ -31,3 +35,26 @@ examples:
compatible = "qcom,smem-part";
};
};
+
+ - |
+ /* Example declaring dynamic partition */
+ flash {
+ partitions {
+ compatible = "qcom,smem-part";
+
+ partition-art {
+ compatible = "nvmem-cells";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ label = "0:art";
+
+ macaddr_art_0: macaddr@0 {
+ reg = <0x0 0x6>;
+ };
+
+ macaddr_art_6: macaddr@6 {
+ reg = <0x6 0x6>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml b/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml
new file mode 100644
index 000000000000..8a88e7d16524
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/u-boot.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/u-boot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: U-Boot bootloader partition
+
+description: |
+ U-Boot is a bootlodaer commonly used in embedded devices. It's almost always
+ located on some kind of flash device.
+
+ Device configuration is stored as a set of environment variables that are
+ located in a (usually standalone) block of data.
+
+maintainers:
+ - Rafał Miłecki <rafal@milecki.pl>
+
+allOf:
+ - $ref: partition.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: brcm,u-boot
+ description: |
+ Broadcom stores environment variables inside a U-Boot partition. They
+ can be identified by a custom header with magic value.
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ compatible = "brcm,u-boot";
+ reg = <0x0 0x100000>;
+ label = "u-boot";
+ };
+
+ partition@100000 {
+ reg = <0x100000 0x1ff00000>;
+ label = "firmware";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
index 84ad7ff30121..482a2c068740 100644
--- a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
+++ b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
@@ -102,6 +102,31 @@ allOf:
- const: rx
- const: cmd
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq806x-nand
+
+ then:
+ properties:
+ qcom,boot-partitions:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: offset
+ - description: size
+ description:
+ Boot partition use a different layout where the 4 bytes of spare
+ data are not protected by ECC. Use this to declare these special
+ partitions by defining first the offset and then the size.
+
+ It's in the form of <offset1 size1 offset2 size2 offset3 ...>
+ and should be declared in ascending order.
+
+ Refer to the ipq8064 example on how to use this special binding.
+
required:
- compatible
- reg
@@ -135,6 +160,8 @@ examples:
nand-ecc-strength = <4>;
nand-bus-width = <8>;
+ qcom,boot-partitions = <0x0 0x58a0000>;
+
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/mtd/renesas-nandc.yaml b/Documentation/devicetree/bindings/mtd/renesas-nandc.yaml
index 7b18bc5cc8b3..f0dc78bb0515 100644
--- a/Documentation/devicetree/bindings/mtd/renesas-nandc.yaml
+++ b/Documentation/devicetree/bindings/mtd/renesas-nandc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/renesas-nandc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Renesas R-Car Gen3 & RZ/N1x NAND flash controller device tree bindings
+title: Renesas R-Car Gen3 & RZ/N1x NAND flash controller
maintainers:
- Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/Documentation/devicetree/bindings/mtd/spi-nand.yaml b/Documentation/devicetree/bindings/mtd/spi-nand.yaml
index dd3cd1d53009..4d095e613204 100644
--- a/Documentation/devicetree/bindings/mtd/spi-nand.yaml
+++ b/Documentation/devicetree/bindings/mtd/spi-nand.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/mtd/spi-nand.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: SPI-NAND flash device tree bindings
+title: SPI-NAND flash
maintainers:
- Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/Documentation/devicetree/bindings/net/adi,adin1110.yaml b/Documentation/devicetree/bindings/net/adi,adin1110.yaml
new file mode 100644
index 000000000000..b6bd8ee38a18
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/adi,adin1110.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/adi,adin1110.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADI ADIN1110 MAC-PHY
+
+maintainers:
+ - Alexandru Tachici <alexandru.tachici@analog.com>
+
+description: |
+ The ADIN1110 is a low power single port 10BASE-T1L MAC-
+ PHY designed for industrial Ethernet applications. It integrates
+ an Ethernet PHY core with a MAC and all the associated analog
+ circuitry, input and output clock buffering.
+
+ The ADIN2111 is a low power, low complexity, two-Ethernet ports
+ switch with integrated 10BASE-T1L PHYs and one serial peripheral
+ interface (SPI) port. The device is designed for industrial Ethernet
+ applications using low power constrained nodes and is compliant
+ with the IEEE 802.3cg-2019 Ethernet standard for long reach
+ 10 Mbps single pair Ethernet (SPE).
+
+ The device has a 4-wire SPI interface for communication
+ between the MAC and host processor.
+
+allOf:
+ - $ref: ethernet-controller.yaml#
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+ compatible:
+ enum:
+ - adi,adin1110
+ - adi,adin2111
+
+ reg:
+ maxItems: 1
+
+ adi,spi-crc:
+ description: |
+ Enable CRC8 checks on SPI read/writes.
+ type: boolean
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi {
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet@0 {
+ compatible = "adi,adin2111";
+ reg = <0>;
+ spi-max-frequency = <24500000>;
+
+ adi,spi-crc;
+
+ interrupt-parent = <&gpio>;
+ interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
+
+ local-mac-address = [ 00 11 22 33 44 55 ];
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-emac.yaml b/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-emac.yaml
index 098b2bf7d976..987b91b9afe9 100644
--- a/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-emac.yaml
+++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-emac.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-emac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 EMAC Ethernet Controller Device Tree Bindings
+title: Allwinner A10 EMAC Ethernet Controller
allOf:
- $ref: "ethernet-controller.yaml#"
diff --git a/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-mdio.yaml b/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-mdio.yaml
index 767193ec1d32..ede977cdfb8d 100644
--- a/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/allwinner,sun4i-a10-mdio.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/allwinner,sun4i-a10-mdio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 MDIO Controller Device Tree Bindings
+title: Allwinner A10 MDIO Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.yaml b/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.yaml
index 703d0d886884..3bd912ed7c7e 100644
--- a/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.yaml
+++ b/Documentation/devicetree/bindings/net/allwinner,sun7i-a20-gmac.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/allwinner,sun7i-a20-gmac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A20 GMAC Device Tree Bindings
+title: Allwinner A20 GMAC
allOf:
- $ref: "snps,dwmac.yaml#"
diff --git a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
index 6a4831fd3616..1432fda3b603 100644
--- a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
+++ b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/allwinner,sun8i-a83t-emac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A83t EMAC Device Tree Bindings
+title: Allwinner A83t EMAC
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -22,6 +22,7 @@ properties:
- enum:
- allwinner,sun20i-d1-emac
- allwinner,sun50i-h6-emac
+ - allwinner,sun50i-h616-emac0
- const: allwinner,sun50i-a64-emac
reg:
diff --git a/Documentation/devicetree/bindings/net/altera_tse.txt b/Documentation/devicetree/bindings/net/altera_tse.txt
deleted file mode 100644
index 0b7d4d3758ea..000000000000
--- a/Documentation/devicetree/bindings/net/altera_tse.txt
+++ /dev/null
@@ -1,113 +0,0 @@
-* Altera Triple-Speed Ethernet MAC driver (TSE)
-
-Required properties:
-- compatible: Should be "altr,tse-1.0" for legacy SGDMA based TSE, and should
- be "altr,tse-msgdma-1.0" for the preferred MSGDMA based TSE.
- ALTR is supported for legacy device trees, but is deprecated.
- altr should be used for all new designs.
-- reg: Address and length of the register set for the device. It contains
- the information of registers in the same order as described by reg-names
-- reg-names: Should contain the reg names
- "control_port": MAC configuration space region
- "tx_csr": xDMA Tx dispatcher control and status space region
- "tx_desc": MSGDMA Tx dispatcher descriptor space region
- "rx_csr" : xDMA Rx dispatcher control and status space region
- "rx_desc": MSGDMA Rx dispatcher descriptor space region
- "rx_resp": MSGDMA Rx dispatcher response space region
- "s1": SGDMA descriptor memory
-- interrupts: Should contain the TSE interrupts and it's mode.
-- interrupt-names: Should contain the interrupt names
- "rx_irq": xDMA Rx dispatcher interrupt
- "tx_irq": xDMA Tx dispatcher interrupt
-- rx-fifo-depth: MAC receive FIFO buffer depth in bytes
-- tx-fifo-depth: MAC transmit FIFO buffer depth in bytes
-- phy-mode: See ethernet.txt in the same directory.
-- phy-handle: See ethernet.txt in the same directory.
-- phy-addr: See ethernet.txt in the same directory. A configuration should
- include phy-handle or phy-addr.
-- altr,has-supplementary-unicast:
- If present, TSE supports additional unicast addresses.
- Otherwise additional unicast addresses are not supported.
-- altr,has-hash-multicast-filter:
- If present, TSE supports a hash based multicast filter.
- Otherwise, hash-based multicast filtering is not supported.
-
-- mdio device tree subnode: When the TSE has a phy connected to its local
- mdio, there must be device tree subnode with the following
- required properties:
-
- - compatible: Must be "altr,tse-mdio".
- - #address-cells: Must be <1>.
- - #size-cells: Must be <0>.
-
- For each phy on the mdio bus, there must be a node with the following
- fields:
-
- - reg: phy id used to communicate to phy.
- - device_type: Must be "ethernet-phy".
-
-The MAC address will be determined using the optional properties defined in
-ethernet.txt.
-
-Example:
-
- tse_sub_0_eth_tse_0: ethernet@1,00000000 {
- compatible = "altr,tse-msgdma-1.0";
- reg = <0x00000001 0x00000000 0x00000400>,
- <0x00000001 0x00000460 0x00000020>,
- <0x00000001 0x00000480 0x00000020>,
- <0x00000001 0x000004A0 0x00000008>,
- <0x00000001 0x00000400 0x00000020>,
- <0x00000001 0x00000420 0x00000020>;
- reg-names = "control_port", "rx_csr", "rx_desc", "rx_resp", "tx_csr", "tx_desc";
- interrupt-parent = <&hps_0_arm_gic_0>;
- interrupts = <0 41 4>, <0 40 4>;
- interrupt-names = "rx_irq", "tx_irq";
- rx-fifo-depth = <2048>;
- tx-fifo-depth = <2048>;
- address-bits = <48>;
- max-frame-size = <1500>;
- local-mac-address = [ 00 00 00 00 00 00 ];
- phy-mode = "gmii";
- altr,has-supplementary-unicast;
- altr,has-hash-multicast-filter;
- phy-handle = <&phy0>;
- mdio {
- compatible = "altr,tse-mdio";
- #address-cells = <1>;
- #size-cells = <0>;
- phy0: ethernet-phy@0 {
- reg = <0x0>;
- device_type = "ethernet-phy";
- };
-
- phy1: ethernet-phy@1 {
- reg = <0x1>;
- device_type = "ethernet-phy";
- };
-
- };
- };
-
- tse_sub_1_eth_tse_0: ethernet@1,00001000 {
- compatible = "altr,tse-msgdma-1.0";
- reg = <0x00000001 0x00001000 0x00000400>,
- <0x00000001 0x00001460 0x00000020>,
- <0x00000001 0x00001480 0x00000020>,
- <0x00000001 0x000014A0 0x00000008>,
- <0x00000001 0x00001400 0x00000020>,
- <0x00000001 0x00001420 0x00000020>;
- reg-names = "control_port", "rx_csr", "rx_desc", "rx_resp", "tx_csr", "tx_desc";
- interrupt-parent = <&hps_0_arm_gic_0>;
- interrupts = <0 43 4>, <0 42 4>;
- interrupt-names = "rx_irq", "tx_irq";
- rx-fifo-depth = <2048>;
- tx-fifo-depth = <2048>;
- address-bits = <48>;
- max-frame-size = <1500>;
- local-mac-address = [ 00 00 00 00 00 00 ];
- phy-mode = "gmii";
- altr,has-supplementary-unicast;
- altr,has-hash-multicast-filter;
- phy-handle = <&phy1>;
- };
diff --git a/Documentation/devicetree/bindings/net/altr,tse.yaml b/Documentation/devicetree/bindings/net/altr,tse.yaml
new file mode 100644
index 000000000000..8d1d94494349
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/altr,tse.yaml
@@ -0,0 +1,168 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/altr,tse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Altera Triple Speed Ethernet MAC driver (TSE)
+
+maintainers:
+ - Maxime Chevallier <maxime.chevallier@bootlin.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: altr,tse-1.0
+ - const: ALTR,tse-1.0
+ deprecated: true
+ - const: altr,tse-msgdma-1.0
+
+ interrupts:
+ minItems: 2
+
+ interrupt-names:
+ items:
+ - const: rx_irq
+ - const: tx_irq
+
+ rx-fifo-depth:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Depth in bytes of the RX FIFO
+
+ tx-fifo-depth:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Depth in bytes of the TX FIFO
+
+ altr,has-supplementary-unicast:
+ type: boolean
+ description:
+ If present, TSE supports additional unicast addresses.
+
+ altr,has-hash-multicast-filter:
+ type: boolean
+ description:
+ If present, TSE supports hash based multicast filter.
+
+ mdio:
+ $ref: mdio.yaml#
+ unevaluatedProperties: false
+ description:
+ Creates and registers an MDIO bus.
+
+ properties:
+ compatible:
+ const: altr,tse-mdio
+
+ required:
+ - compatible
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - rx-fifo-depth
+ - tx-fifo-depth
+
+allOf:
+ - $ref: "ethernet-controller.yaml#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - const: altr,tse-1.0
+ - const: ALTR,tse-1.0
+ then:
+ properties:
+ reg:
+ minItems: 4
+ reg-names:
+ items:
+ - const: control_port
+ - const: rx_csr
+ - const: tx_csr
+ - const: s1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - altr,tse-msgdma-1.0
+ then:
+ properties:
+ reg:
+ minItems: 6
+ maxItems: 7
+ reg-names:
+ minItems: 6
+ items:
+ - const: control_port
+ - const: rx_csr
+ - const: rx_desc
+ - const: rx_resp
+ - const: tx_csr
+ - const: tx_desc
+ - const: pcs
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ tse_sub_0: ethernet@c0100000 {
+ compatible = "altr,tse-msgdma-1.0";
+ reg = <0xc0100000 0x00000400>,
+ <0xc0101000 0x00000020>,
+ <0xc0102000 0x00000020>,
+ <0xc0103000 0x00000008>,
+ <0xc0104000 0x00000020>,
+ <0xc0105000 0x00000020>,
+ <0xc0106000 0x00000100>;
+ reg-names = "control_port", "rx_csr", "rx_desc", "rx_resp", "tx_csr", "tx_desc", "pcs";
+ interrupt-parent = <&intc>;
+ interrupts = <0 44 4>,<0 45 4>;
+ interrupt-names = "rx_irq","tx_irq";
+ rx-fifo-depth = <2048>;
+ tx-fifo-depth = <2048>;
+ max-frame-size = <1500>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ altr,has-supplementary-unicast;
+ altr,has-hash-multicast-filter;
+ sfp = <&sfp0>;
+ phy-mode = "sgmii";
+ managed = "in-band-status";
+ };
+ - |
+ tse_sub_1_eth_tse_0: ethernet@1,00001000 {
+ compatible = "altr,tse-msgdma-1.0";
+ reg = <0x00001000 0x00000400>,
+ <0x00001460 0x00000020>,
+ <0x00001480 0x00000020>,
+ <0x000014A0 0x00000008>,
+ <0x00001400 0x00000020>,
+ <0x00001420 0x00000020>;
+ reg-names = "control_port", "rx_csr", "rx_desc", "rx_resp", "tx_csr", "tx_desc";
+ interrupt-parent = <&hps_0_arm_gic_0>;
+ interrupts = <0 43 4>, <0 42 4>;
+ interrupt-names = "rx_irq", "tx_irq";
+ rx-fifo-depth = <2048>;
+ tx-fifo-depth = <2048>;
+ max-frame-size = <1500>;
+ local-mac-address = [ 00 00 00 00 00 00 ];
+ phy-mode = "gmii";
+ altr,has-supplementary-unicast;
+ altr,has-hash-multicast-filter;
+ phy-handle = <&phy1>;
+ mdio {
+ compatible = "altr,tse-mdio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy1: ethernet-phy@1 {
+ reg = <0x1>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
index 608e1d62bed5..ddd5a073c3a8 100644
--- a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson DWMAC Ethernet controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
- Martin Blumenstingl <martin.blumenstingl@googlemail.com>
# We need a select here so we don't match all nodes with 'snps,dwmac'
diff --git a/Documentation/devicetree/bindings/net/brcm,amac.yaml b/Documentation/devicetree/bindings/net/brcm,amac.yaml
index 8f031932c8af..ee2eac8f5710 100644
--- a/Documentation/devicetree/bindings/net/brcm,amac.yaml
+++ b/Documentation/devicetree/bindings/net/brcm,amac.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/brcm,amac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom AMAC Ethernet Controller Device Tree Bindings
+title: Broadcom AMAC Ethernet Controller
maintainers:
- Florian Fainelli <f.fainelli@gmail.com>
diff --git a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
index 5aac094fd217..445b2a553625 100644
--- a/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/broadcom-bluetooth.yaml
@@ -23,6 +23,8 @@ properties:
- brcm,bcm4345c5
- brcm,bcm43540-bt
- brcm,bcm4335a0
+ - brcm,bcm4349-bt
+ - infineon,cyw55572-bt
shutdown-gpios:
maxItems: 1
@@ -92,6 +94,13 @@ properties:
pcm-sync-mode: slave, master
pcm-clock-mode: slave, master
+ brcm,requires-autobaud-mode:
+ type: boolean
+ description:
+ Set this property if autobaud mode is required. Autobaud mode is required
+ if the device's initial baud rate in normal mode is not supported by the
+ host or if the device requires autobaud mode startup before loading FW.
+
interrupts:
items:
- description: Handle to the line HOST_WAKE used to wake
@@ -108,6 +117,22 @@ properties:
required:
- compatible
+dependencies:
+ brcm,requires-autobaud-mode: [ 'shutdown-gpios' ]
+
+if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - brcm,bcm20702a1
+ - brcm,bcm4329-bt
+ - brcm,bcm4330-bt
+then:
+ properties:
+ reset-gpios: false
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml b/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
new file mode 100644
index 000000000000..45aa3de7cf01
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/microchip,mpfs-can.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/microchip,mpfs-can.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title:
+ Microchip PolarFire SoC (MPFS) can controller
+
+maintainers:
+ - Conor Dooley <conor.dooley@microchip.com>
+
+allOf:
+ - $ref: can-controller.yaml#
+
+properties:
+ compatible:
+ const: microchip,mpfs-can
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ can@2010c000 {
+ compatible = "microchip,mpfs-can";
+ reg = <0x2010c000 0x1000>;
+ clocks = <&clkcfg 17>;
+ interrupt-parent = <&plic>;
+ interrupts = <56>;
+ };
diff --git a/Documentation/devicetree/bindings/net/can/nxp,sja1000.yaml b/Documentation/devicetree/bindings/net/can/nxp,sja1000.yaml
new file mode 100644
index 000000000000..144a3785132c
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/nxp,sja1000.yaml
@@ -0,0 +1,136 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/can/nxp,sja1000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Memory mapped SJA1000 CAN controller from NXP (formerly Philips)
+
+maintainers:
+ - Wolfgang Grandegger <wg@grandegger.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - nxp,sja1000
+ - technologic,sja1000
+ - items:
+ - enum:
+ - renesas,r9a06g032-sja1000 # RZ/N1D
+ - renesas,r9a06g033-sja1000 # RZ/N1S
+ - const: renesas,rzn1-sja1000 # RZ/N1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ reg-io-width:
+ description: I/O register width (in bytes) implemented by this device
+ default: 1
+ enum: [ 1, 2, 4 ]
+
+ nxp,external-clock-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 16000000
+ description: |
+ Frequency of the external oscillator clock in Hz.
+ The internal clock frequency used by the SJA1000 is half of that value.
+
+ nxp,tx-output-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [ 0, 1, 2, 3 ]
+ default: 1
+ description: |
+ operation mode of the TX output control logic. Valid values are:
+ <0> : bi-phase output mode
+ <1> : normal output mode (default)
+ <2> : test output mode
+ <3> : clock output mode
+
+ nxp,tx-output-config:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ default: 0x02
+ description: |
+ TX output pin configuration. Valid values are any one of the below
+ or combination of TX0 and TX1:
+ <0x01> : TX0 invert
+ <0x02> : TX0 pull-down (default)
+ <0x04> : TX0 pull-up
+ <0x06> : TX0 push-pull
+ <0x08> : TX1 invert
+ <0x10> : TX1 pull-down
+ <0x20> : TX1 pull-up
+ <0x30> : TX1 push-pull
+
+ nxp,clock-out-frequency:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ clock frequency in Hz on the CLKOUT pin.
+ If not specified or if the specified value is 0, the CLKOUT pin
+ will be disabled.
+
+ nxp,no-comparator-bypass:
+ type: boolean
+ description: Allows to disable the CAN input comparator.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: can-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - technologic,sja1000
+ - renesas,rzn1-sja1000
+ then:
+ required:
+ - reg-io-width
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,rzn1-sja1000
+ then:
+ required:
+ - clocks
+ - power-domains
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ can@1a000 {
+ compatible = "technologic,sja1000";
+ reg = <0x1a000 0x100>;
+ interrupts = <1>;
+ reg-io-width = <2>;
+ nxp,tx-output-config = <0x06>;
+ nxp,external-clock-frequency = <24000000>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+ can@52104000 {
+ compatible = "renesas,r9a06g032-sja1000", "renesas,rzn1-sja1000";
+ reg = <0x52104000 0x800>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&sysctrl R9A06G032_HCLK_CAN0>;
+ power-domains = <&sysctrl>;
+ };
diff --git a/Documentation/devicetree/bindings/net/can/sja1000.txt b/Documentation/devicetree/bindings/net/can/sja1000.txt
deleted file mode 100644
index ac3160eca96a..000000000000
--- a/Documentation/devicetree/bindings/net/can/sja1000.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-Memory mapped SJA1000 CAN controller from NXP (formerly Philips)
-
-Required properties:
-
-- compatible : should be one of "nxp,sja1000", "technologic,sja1000".
-
-- reg : should specify the chip select, address offset and size required
- to map the registers of the SJA1000. The size is usually 0x80.
-
-- interrupts: property with a value describing the interrupt source
- (number and sensitivity) required for the SJA1000.
-
-Optional properties:
-
-- reg-io-width : Specify the size (in bytes) of the IO accesses that
- should be performed on the device. Valid value is 1, 2 or 4.
- This property is ignored for technologic version.
- Default to 1 (8 bits).
-
-- nxp,external-clock-frequency : Frequency of the external oscillator
- clock in Hz. Note that the internal clock frequency used by the
- SJA1000 is half of that value. If not specified, a default value
- of 16000000 (16 MHz) is used.
-
-- nxp,tx-output-mode : operation mode of the TX output control logic:
- <0x0> : bi-phase output mode
- <0x1> : normal output mode (default)
- <0x2> : test output mode
- <0x3> : clock output mode
-
-- nxp,tx-output-config : TX output pin configuration:
- <0x01> : TX0 invert
- <0x02> : TX0 pull-down (default)
- <0x04> : TX0 pull-up
- <0x06> : TX0 push-pull
- <0x08> : TX1 invert
- <0x10> : TX1 pull-down
- <0x20> : TX1 pull-up
- <0x30> : TX1 push-pull
-
-- nxp,clock-out-frequency : clock frequency in Hz on the CLKOUT pin.
- If not specified or if the specified value is 0, the CLKOUT pin
- will be disabled.
-
-- nxp,no-comparator-bypass : Allows to disable the CAN input comparator.
-
-For further information, please have a look to the SJA1000 data sheet.
-
-Examples:
-
-can@3,100 {
- compatible = "nxp,sja1000";
- reg = <3 0x100 0x80>;
- interrupts = <2 0>;
- interrupt-parent = <&mpic>;
- nxp,external-clock-frequency = <16000000>;
-};
-
diff --git a/Documentation/devicetree/bindings/net/cdns,macb.yaml b/Documentation/devicetree/bindings/net/cdns,macb.yaml
index 86fc31c2d91b..318f4efe7f6f 100644
--- a/Documentation/devicetree/bindings/net/cdns,macb.yaml
+++ b/Documentation/devicetree/bindings/net/cdns,macb.yaml
@@ -23,11 +23,20 @@ properties:
- cdns,zynq-gem # Xilinx Zynq-7xxx SoC
- cdns,zynqmp-gem # Xilinx Zynq Ultrascale+ MPSoC
- const: cdns,gem # Generic
+ deprecated: true
+
+ - items:
+ - enum:
+ - xlnx,versal-gem # Xilinx Versal
+ - xlnx,zynq-gem # Xilinx Zynq-7xxx SoC
+ - xlnx,zynqmp-gem # Xilinx Zynq Ultrascale+ MPSoC
+ - const: cdns,gem # Generic
- items:
- enum:
- cdns,at91sam9260-macb # Atmel at91sam9 SoCs
- cdns,sam9x60-macb # Microchip sam9x60 SoC
+ - microchip,mpfs-macb # Microchip PolarFire SoC
- const: cdns,macb # Generic
- items:
@@ -42,7 +51,6 @@ properties:
- atmel,sama5d2-gem # GEM IP (10/100) on Atmel sama5d2 SoCs
- atmel,sama5d3-gem # Gigabit IP on Atmel sama5d3 SoCs
- atmel,sama5d4-gem # GEM IP (10/100) on Atmel sama5d4 SoCs
- - cdns,at32ap7000-macb # Other 10/100 usage or use the generic form
- cdns,np4-macb # NP4 SoC devices
- microchip,sama7g5-emac # Microchip SAMA7G5 ethernet interface
- microchip,sama7g5-gem # Microchip SAMA7G5 gigabit ethernet interface
@@ -155,7 +163,7 @@ unevaluatedProperties: false
examples:
- |
macb0: ethernet@fffc4000 {
- compatible = "cdns,at32ap7000-macb";
+ compatible = "cdns,macb";
reg = <0xfffc4000 0x4000>;
interrupts = <21>;
phy-mode = "rmii";
@@ -181,7 +189,7 @@ examples:
#address-cells = <2>;
#size-cells = <2>;
gem1: ethernet@ff0c0000 {
- compatible = "cdns,zynqmp-gem", "cdns,gem";
+ compatible = "xlnx,zynqmp-gem", "cdns,gem";
interrupt-parent = <&gic>;
interrupts = <0 59 4>, <0 59 4>;
reg = <0x0 0xff0c0000 0x0 0x1000>;
diff --git a/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml b/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml
index cc01b9b5752a..253b5d1407ee 100644
--- a/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml
+++ b/Documentation/devicetree/bindings/net/cortina,gemini-ethernet.yaml
@@ -37,6 +37,7 @@ properties:
patternProperties:
"^ethernet-port@[0-9]+$":
type: object
+ unevaluatedProperties: false
description: contains the resources for ethernet port
allOf:
- $ref: ethernet-controller.yaml#
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt
index 7c7ac5eb0313..ef655f386b2e 100644
--- a/Documentation/devicetree/bindings/net/cpsw.txt
+++ b/Documentation/devicetree/bindings/net/cpsw.txt
@@ -20,7 +20,7 @@ Required properties:
- active_slave : Specifies the slave to use for time stamping,
ethtool and SIOCGMIIPHY
- cpsw-phy-sel : Specifies the phandle to the CPSW phy mode selection
- device. See also cpsw-phy-sel.txt for it's binding.
+ device. See also cpsw-phy-sel.txt for its binding.
Note that in legacy cases cpsw-phy-sel may be
a child device instead of a phandle
(DEPRECATED, use phys property instead).
diff --git a/Documentation/devicetree/bindings/net/dsa/ar9331.txt b/Documentation/devicetree/bindings/net/dsa/ar9331.txt
index 320607cbbb17..f824fdae0da2 100644
--- a/Documentation/devicetree/bindings/net/dsa/ar9331.txt
+++ b/Documentation/devicetree/bindings/net/dsa/ar9331.txt
@@ -76,7 +76,6 @@ eth1: ethernet@1a000000 {
switch_port0: port@0 {
reg = <0x0>;
- label = "cpu";
ethernet = <&eth1>;
phy-mode = "gmii";
diff --git a/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml b/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml
index 3f01b65f3b22..259a0c6547f3 100644
--- a/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/arrow,xrs700x.yaml
@@ -61,8 +61,9 @@ examples:
};
ethernet-port@3 {
reg = <3>;
- label = "cpu";
ethernet = <&fec1>;
+ phy-mode = "rgmii-id";
+
fixed-link {
speed = <1000>;
full-duplex;
diff --git a/Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml b/Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml
index 23114d691d2a..1219b830b1a4 100644
--- a/Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml
@@ -169,7 +169,6 @@ examples:
port@8 {
reg = <8>;
- label = "cpu";
phy-mode = "rgmii-txid";
ethernet = <&eth0>;
fixed-link {
@@ -252,8 +251,9 @@ examples:
port@8 {
ethernet = <&amac2>;
- label = "cpu";
reg = <8>;
+ phy-mode = "internal";
+
fixed-link {
speed = <1000>;
full-duplex;
diff --git a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
index 09317e16cb5d..10ad7e71097b 100644
--- a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
@@ -76,6 +76,23 @@ properties:
required:
- reg
+# CPU and DSA ports must have phylink-compatible link descriptions
+if:
+ oneOf:
+ - required: [ ethernet ]
+ - required: [ link ]
+then:
+ allOf:
+ - required:
+ - phy-mode
+ - oneOf:
+ - required:
+ - fixed-link
+ - required:
+ - phy-handle
+ - required:
+ - managed
+
additionalProperties: true
...
diff --git a/Documentation/devicetree/bindings/net/dsa/hirschmann,hellcreek.yaml b/Documentation/devicetree/bindings/net/dsa/hirschmann,hellcreek.yaml
index 5592f58fa6f0..73b774eadd0b 100644
--- a/Documentation/devicetree/bindings/net/dsa/hirschmann,hellcreek.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/hirschmann,hellcreek.yaml
@@ -48,7 +48,7 @@ properties:
"^led@[01]$":
type: object
description: Hellcreek leds
- $ref: ../../leds/common.yaml#
+ $ref: /schemas/leds/common.yaml#
properties:
reg:
@@ -91,8 +91,13 @@ examples:
port@0 {
reg = <0>;
- label = "cpu";
ethernet = <&gmac0>;
+ phy-mode = "mii";
+
+ fixed-link {
+ speed = <100>;
+ full-duplex;
+ };
};
port@2 {
diff --git a/Documentation/devicetree/bindings/net/dsa/lan9303.txt b/Documentation/devicetree/bindings/net/dsa/lan9303.txt
index 464d6bf87605..46a732087f5c 100644
--- a/Documentation/devicetree/bindings/net/dsa/lan9303.txt
+++ b/Documentation/devicetree/bindings/net/dsa/lan9303.txt
@@ -46,7 +46,6 @@ I2C managed mode:
port@0 { /* RMII fixed link to master */
reg = <0>;
- label = "cpu";
ethernet = <&master>;
};
@@ -83,7 +82,6 @@ MDIO managed mode:
port@0 {
reg = <0>;
- label = "cpu";
ethernet = <&master>;
};
diff --git a/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt b/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt
index e3829d3e480e..8bb1eff21cb1 100644
--- a/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt
+++ b/Documentation/devicetree/bindings/net/dsa/lantiq-gswip.txt
@@ -96,7 +96,6 @@ switch@e108000 {
port@6 {
reg = <0x6>;
- label = "cpu";
ethernet = <&eth0>;
};
};
diff --git a/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
new file mode 100644
index 000000000000..f2e9ff3f580b
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/mediatek,mt7530.yaml
@@ -0,0 +1,804 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/mediatek,mt7530.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT7530 and MT7531 Ethernet Switches
+
+maintainers:
+ - Arınç ÜNAL <arinc.unal@arinc9.com>
+ - Landen Chao <Landen.Chao@mediatek.com>
+ - DENG Qingfang <dqfext@gmail.com>
+ - Sean Wang <sean.wang@mediatek.com>
+
+description: |
+ There are two versions of MT7530, standalone and in a multi-chip module.
+
+ MT7530 is a part of the multi-chip module in MT7620AN, MT7620DA, MT7620DAN,
+ MT7620NN, MT7621AT, MT7621DAT, MT7621ST and MT7623AI SoCs.
+
+ MT7530 in MT7620AN, MT7620DA, MT7620DAN and MT7620NN SoCs has got 10/100 PHYs
+ and the switch registers are directly mapped into SoC's memory map rather than
+ using MDIO. The DSA driver currently doesn't support this.
+
+ There is only the standalone version of MT7531.
+
+ Port 5 on MT7530 has got various ways of configuration.
+
+ For standalone MT7530:
+
+ - Port 5 can be used as a CPU port.
+
+ - PHY 0 or 4 of the switch can be muxed to connect to the gmac of the SoC
+ which port 5 is wired to. Usually used for connecting the wan port
+ directly to the CPU to achieve 2 Gbps routing in total.
+
+ The driver looks up the reg on the ethernet-phy node which the phy-handle
+ property refers to on the gmac node to mux the specified phy.
+
+ The driver requires the gmac of the SoC to have "mediatek,eth-mac" as the
+ compatible string and the reg must be 1. So, for now, only gmac1 of an
+ MediaTek SoC can benefit this. Banana Pi BPI-R2 suits this.
+ Check out example 5 for a similar configuration.
+
+ - Port 5 can be wired to an external phy. Port 5 becomes a DSA slave.
+ Check out example 7 for a similar configuration.
+
+ For multi-chip module MT7530:
+
+ - Port 5 can be used as a CPU port.
+
+ - PHY 0 or 4 of the switch can be muxed to connect to gmac1 of the SoC.
+ Usually used for connecting the wan port directly to the CPU to achieve 2
+ Gbps routing in total.
+
+ The driver looks up the reg on the ethernet-phy node which the phy-handle
+ property refers to on the gmac node to mux the specified phy.
+
+ For the MT7621 SoCs, rgmii2 group must be claimed with rgmii2 function.
+ Check out example 5.
+
+ - In case of an external phy wired to gmac1 of the SoC, port 5 must not be
+ enabled.
+
+ In case of muxing PHY 0 or 4, the external phy must not be enabled.
+
+ For the MT7621 SoCs, rgmii2 group must be claimed with rgmii2 function.
+ Check out example 6.
+
+ - Port 5 can be muxed to an external phy. Port 5 becomes a DSA slave.
+ The external phy must be wired TX to TX to gmac1 of the SoC for this to
+ work. Ubiquiti EdgeRouter X SFP is wired this way.
+
+ Muxing PHY 0 or 4 won't work when the external phy is connected TX to TX.
+
+ For the MT7621 SoCs, rgmii2 group must be claimed with gpio function.
+ Check out example 7.
+
+properties:
+ compatible:
+ oneOf:
+ - description:
+ Standalone MT7530 and multi-chip module MT7530 in MT7623AI SoC
+ const: mediatek,mt7530
+
+ - description:
+ Standalone MT7531
+ const: mediatek,mt7531
+
+ - description:
+ Multi-chip module MT7530 in MT7621AT, MT7621DAT and MT7621ST SoCs
+ const: mediatek,mt7621
+
+ reg:
+ maxItems: 1
+
+ core-supply:
+ description:
+ Phandle to the regulator node necessary for the core power.
+
+ "#gpio-cells":
+ const: 2
+
+ gpio-controller:
+ type: boolean
+ description:
+ If defined, LED controller of the MT7530 switch will run on GPIO mode.
+
+ There are 15 controllable pins.
+ port 0 LED 0..2 as GPIO 0..2
+ port 1 LED 0..2 as GPIO 3..5
+ port 2 LED 0..2 as GPIO 6..8
+ port 3 LED 0..2 as GPIO 9..11
+ port 4 LED 0..2 as GPIO 12..14
+
+ "#interrupt-cells":
+ const: 1
+
+ interrupt-controller: true
+
+ interrupts:
+ maxItems: 1
+
+ io-supply:
+ description:
+ Phandle to the regulator node necessary for the I/O power.
+ See Documentation/devicetree/bindings/regulator/mt6323-regulator.txt for
+ details for the regulator setup on these boards.
+
+ mediatek,mcm:
+ type: boolean
+ description:
+ Used for MT7621AT, MT7621DAT, MT7621ST and MT7623AI SoCs which the MT7530
+ switch is a part of the multi-chip module.
+
+ reset-gpios:
+ description:
+ GPIO to reset the switch. Use this if mediatek,mcm is not used.
+ This property is optional because some boards share the reset line with
+ other components which makes it impossible to probe the switch if the
+ reset line is used.
+ maxItems: 1
+
+ reset-names:
+ const: mcm
+
+ resets:
+ description:
+ Phandle pointing to the system reset controller with line index for the
+ ethsys.
+ maxItems: 1
+
+patternProperties:
+ "^(ethernet-)?ports$":
+ type: object
+
+ patternProperties:
+ "^(ethernet-)?port@[0-9]+$":
+ type: object
+ description: Ethernet switch ports
+
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ description:
+ Port address described must be 5 or 6 for CPU port and from 0 to 5
+ for user ports.
+
+ allOf:
+ - $ref: dsa-port.yaml#
+ - if:
+ required: [ ethernet ]
+ then:
+ properties:
+ reg:
+ enum:
+ - 5
+ - 6
+
+required:
+ - compatible
+ - reg
+
+$defs:
+ mt7530-dsa-port:
+ patternProperties:
+ "^(ethernet-)?ports$":
+ patternProperties:
+ "^(ethernet-)?port@[0-9]+$":
+ if:
+ required: [ ethernet ]
+ then:
+ if:
+ properties:
+ reg:
+ const: 5
+ then:
+ properties:
+ phy-mode:
+ enum:
+ - gmii
+ - mii
+ - rgmii
+ else:
+ properties:
+ phy-mode:
+ enum:
+ - rgmii
+ - trgmii
+
+ mt7531-dsa-port:
+ patternProperties:
+ "^(ethernet-)?ports$":
+ patternProperties:
+ "^(ethernet-)?port@[0-9]+$":
+ if:
+ required: [ ethernet ]
+ then:
+ if:
+ properties:
+ reg:
+ const: 5
+ then:
+ properties:
+ phy-mode:
+ enum:
+ - 1000base-x
+ - 2500base-x
+ - rgmii
+ - sgmii
+ else:
+ properties:
+ phy-mode:
+ enum:
+ - 1000base-x
+ - 2500base-x
+ - sgmii
+
+allOf:
+ - $ref: dsa.yaml#
+ - if:
+ required:
+ - mediatek,mcm
+ then:
+ properties:
+ reset-gpios: false
+
+ required:
+ - resets
+ - reset-names
+
+ - dependencies:
+ interrupt-controller: [ interrupts ]
+
+ - if:
+ properties:
+ compatible:
+ const: mediatek,mt7530
+ then:
+ $ref: "#/$defs/mt7530-dsa-port"
+ required:
+ - core-supply
+ - io-supply
+
+ - if:
+ properties:
+ compatible:
+ const: mediatek,mt7531
+ then:
+ $ref: "#/$defs/mt7531-dsa-port"
+ properties:
+ gpio-controller: false
+ mediatek,mcm: false
+
+ - if:
+ properties:
+ compatible:
+ const: mediatek,mt7621
+ then:
+ $ref: "#/$defs/mt7530-dsa-port"
+ required:
+ - mediatek,mcm
+
+unevaluatedProperties: false
+
+examples:
+ # Example 1: Standalone MT7530
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@1f {
+ compatible = "mediatek,mt7530";
+ reg = <0x1f>;
+
+ reset-gpios = <&pio 33 0>;
+
+ core-supply = <&mt6323_vpa_reg>;
+ io-supply = <&mt6323_vemc3v3_reg>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "rgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+
+ # Example 2: MT7530 in MT7623AI SoC
+ - |
+ #include <dt-bindings/reset/mt2701-resets.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@1f {
+ compatible = "mediatek,mt7530";
+ reg = <0x1f>;
+
+ mediatek,mcm;
+ resets = <&ethsys MT2701_ETHSYS_MCM_RST>;
+ reset-names = "mcm";
+
+ core-supply = <&mt6323_vpa_reg>;
+ io-supply = <&mt6323_vemc3v3_reg>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+
+ # Example 3: Standalone MT7531
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@0 {
+ compatible = "mediatek,mt7531";
+ reg = <0>;
+
+ reset-gpios = <&pio 54 0>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "2500base-x";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+
+ # Example 4: MT7530 in MT7621AT, MT7621DAT and MT7621ST SoCs
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ #include <dt-bindings/reset/mt7621-reset.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ switch@1f {
+ compatible = "mediatek,mt7621";
+ reg = <0x1f>;
+
+ mediatek,mcm;
+ resets = <&sysc MT7621_RST_MCM>;
+ reset-names = "mcm";
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 23 IRQ_TYPE_LEVEL_HIGH>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+
+ # Example 5: MT7621: mux MT7530's phy4 to SoC's gmac1
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ #include <dt-bindings/reset/mt7621-reset.h>
+
+ ethernet {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii2_pins>;
+
+ mac@1 {
+ compatible = "mediatek,eth-mac";
+ reg = <1>;
+
+ phy-mode = "rgmii";
+ phy-handle = <&example5_ethphy4>;
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* MT7530's phy4 */
+ example5_ethphy4: ethernet-phy@4 {
+ reg = <4>;
+ };
+
+ switch@1f {
+ compatible = "mediatek,mt7621";
+ reg = <0x1f>;
+
+ mediatek,mcm;
+ resets = <&sysc MT7621_RST_MCM>;
+ reset-names = "mcm";
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 23 IRQ_TYPE_LEVEL_HIGH>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ /* Commented out, phy4 is muxed to gmac1.
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+ */
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+ };
+
+ # Example 6: MT7621: mux external phy to SoC's gmac1
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ #include <dt-bindings/reset/mt7621-reset.h>
+
+ ethernet {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii2_pins>;
+
+ mac@1 {
+ compatible = "mediatek,eth-mac";
+ reg = <1>;
+
+ phy-mode = "rgmii";
+ phy-handle = <&example6_ethphy7>;
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* External PHY */
+ example6_ethphy7: ethernet-phy@7 {
+ reg = <7>;
+ phy-mode = "rgmii";
+ };
+
+ switch@1f {
+ compatible = "mediatek,mt7621";
+ reg = <0x1f>;
+
+ mediatek,mcm;
+ resets = <&sysc MT7621_RST_MCM>;
+ reset-names = "mcm";
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 23 IRQ_TYPE_LEVEL_HIGH>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+ };
+
+ # Example 7: MT7621: mux external phy to MT7530's port 5
+ - |
+ #include <dt-bindings/interrupt-controller/mips-gic.h>
+ #include <dt-bindings/reset/mt7621-reset.h>
+
+ ethernet {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&rgmii2_pins>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* External PHY */
+ example7_ethphy7: ethernet-phy@7 {
+ reg = <7>;
+ phy-mode = "rgmii";
+ };
+
+ switch@1f {
+ compatible = "mediatek,mt7621";
+ reg = <0x1f>;
+
+ mediatek,mcm;
+ resets = <&sysc MT7621_RST_MCM>;
+ reset-names = "mcm";
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SHARED 23 IRQ_TYPE_LEVEL_HIGH>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "wan";
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "extphy";
+ phy-mode = "rgmii-txid";
+ phy-handle = <&example7_ethphy7>;
+ };
+
+ port@6 {
+ reg = <6>;
+ ethernet = <&gmac0>;
+ phy-mode = "trgmii";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
index 6bbd8145b6c1..4da75b1f9533 100644
--- a/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/microchip,ksz.yaml
@@ -107,8 +107,9 @@ examples:
};
port@5 {
reg = <5>;
- label = "cpu";
ethernet = <&eth0>;
+ phy-mode = "rgmii";
+
fixed-link {
speed = <1000>;
full-duplex;
@@ -144,8 +145,9 @@ examples:
};
port@6 {
reg = <6>;
- label = "cpu";
ethernet = <&eth0>;
+ phy-mode = "rgmii";
+
fixed-link {
speed = <1000>;
full-duplex;
diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml
new file mode 100644
index 000000000000..630bf0f8294b
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml
@@ -0,0 +1,192 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/microchip,lan937x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LAN937x Ethernet Switch Series Tree Bindings
+
+maintainers:
+ - UNGLinuxDriver@microchip.com
+
+allOf:
+ - $ref: dsa.yaml#
+
+properties:
+ compatible:
+ enum:
+ - microchip,lan9370
+ - microchip,lan9371
+ - microchip,lan9372
+ - microchip,lan9373
+ - microchip,lan9374
+
+ reg:
+ maxItems: 1
+
+ spi-max-frequency:
+ maximum: 50000000
+
+ reset-gpios:
+ description: Optional gpio specifier for a reset line
+ maxItems: 1
+
+ mdio:
+ $ref: /schemas/net/mdio.yaml#
+ unevaluatedProperties: false
+
+patternProperties:
+ "^(ethernet-)?ports$":
+ patternProperties:
+ "^(ethernet-)?port@[0-9]+$":
+ allOf:
+ - if:
+ properties:
+ phy-mode:
+ contains:
+ enum:
+ - rgmii
+ - rgmii-id
+ - rgmii-txid
+ - rgmii-rxid
+ then:
+ properties:
+ rx-internal-delay-ps:
+ enum: [0, 2000]
+ default: 0
+ tx-internal-delay-ps:
+ enum: [0, 2000]
+ default: 0
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ macb0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ lan9374: switch@0 {
+ compatible = "microchip,lan9374";
+ reg = <0>;
+ spi-max-frequency = <44000000>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan1";
+ phy-mode = "internal";
+ phy-handle = <&t1phy0>;
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan2";
+ phy-mode = "internal";
+ phy-handle = <&t1phy1>;
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan4";
+ phy-mode = "internal";
+ phy-handle = <&t1phy2>;
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan6";
+ phy-mode = "internal";
+ phy-handle = <&t1phy3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ phy-mode = "rgmii";
+ tx-internal-delay-ps = <2000>;
+ rx-internal-delay-ps = <2000>;
+ ethernet = <&macb0>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ port@5 {
+ reg = <5>;
+ label = "lan7";
+ phy-mode = "rgmii";
+ tx-internal-delay-ps = <2000>;
+ rx-internal-delay-ps = <2000>;
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+
+ port@6 {
+ reg = <6>;
+ label = "lan5";
+ phy-mode = "internal";
+ phy-handle = <&t1phy6>;
+ };
+
+ port@7 {
+ reg = <7>;
+ label = "lan3";
+ phy-mode = "internal";
+ phy-handle = <&t1phy7>;
+ };
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ t1phy0: ethernet-phy@0{
+ reg = <0x0>;
+ };
+
+ t1phy1: ethernet-phy@1{
+ reg = <0x1>;
+ };
+
+ t1phy2: ethernet-phy@2{
+ reg = <0x2>;
+ };
+
+ t1phy3: ethernet-phy@3{
+ reg = <0x3>;
+ };
+
+ t1phy6: ethernet-phy@6{
+ reg = <0x6>;
+ };
+
+ t1phy7: ethernet-phy@7{
+ reg = <0x7>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/mscc,ocelot.yaml b/Documentation/devicetree/bindings/net/dsa/mscc,ocelot.yaml
new file mode 100644
index 000000000000..8d93ed9c172c
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/mscc,ocelot.yaml
@@ -0,0 +1,260 @@
+# SPDX-License-Identifier: (GPL-2.0 OR MIT)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/mscc,ocelot.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip Ocelot Switch Family Device Tree Bindings
+
+maintainers:
+ - Vladimir Oltean <vladimir.oltean@nxp.com>
+ - Claudiu Manoil <claudiu.manoil@nxp.com>
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+ - UNGLinuxDriver@microchip.com
+
+description: |
+ There are multiple switches which are either part of the Ocelot-1 family, or
+ derivatives of this architecture. These switches can be found embedded in
+ various SoCs and accessed using MMIO, or as discrete chips and accessed over
+ SPI or PCIe. The present DSA binding shall be used when the host controlling
+ them performs packet I/O primarily through an Ethernet port of the switch
+ (which is attached to an Ethernet port of the host), rather than through
+ Frame DMA or register-based I/O.
+
+ VSC9953 (Seville):
+
+ This is found in the NXP T1040, where it is a memory-mapped platform
+ device.
+
+ The following PHY interface types are supported:
+
+ - phy-mode = "internal": on ports 8 and 9
+ - phy-mode = "sgmii": on ports 0, 1, 2, 3, 4, 5, 6, 7
+ - phy-mode = "qsgmii": on ports 0, 1, 2, 3, 4, 5, 6, 7
+ - phy-mode = "1000base-x": on ports 0, 1, 2, 3, 4, 5, 6, 7
+
+ VSC9959 (Felix):
+
+ This is found in the NXP LS1028A. It is a PCI device, part of the larger
+ enetc root complex. As a result, the ethernet-switch node is a sub-node of
+ the PCIe root complex node and its "reg" property conforms to the parent
+ node bindings, describing it as PF 5 of device 0, bus 0.
+
+ If any external switch port is enabled, the enetc PF2 (enetc_port2) should
+ be enabled as well. This is because the internal MDIO bus (exposed through
+ EA BAR 0) used to access the MAC PCS registers truly belongs to the enetc
+ port 2 and not to Felix.
+
+ The following PHY interface types are supported:
+
+ - phy-mode = "internal": on ports 4 and 5
+ - phy-mode = "sgmii": on ports 0, 1, 2, 3
+ - phy-mode = "qsgmii": on ports 0, 1, 2, 3
+ - phy-mode = "usxgmii": on ports 0, 1, 2, 3
+ - phy-mode = "1000base-x": on ports 0, 1, 2, 3
+ - phy-mode = "2500base-x": on ports 0, 1, 2, 3
+
+properties:
+ compatible:
+ enum:
+ - mscc,vsc9953-switch
+ - pci1957,eef0
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ description:
+ Used to signal availability of PTP TX timestamps, and state changes of
+ the MAC merge layer of ports that support Frame Preemption.
+
+ little-endian: true
+ big-endian: true
+
+required:
+ - compatible
+ - reg
+
+allOf:
+ - $ref: dsa.yaml#
+ - if:
+ properties:
+ compatible:
+ const: pci1957,eef0
+ then:
+ required:
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ # Felix VSC9959 (NXP LS1028A)
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pcie { /* Integrated Endpoint Root Complex */
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ ethernet-switch@0,5 {
+ compatible = "pci1957,eef0";
+ reg = <0x000500 0 0 0 0>;
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy0>;
+ managed = "in-band-status";
+ };
+
+ port@1 {
+ reg = <1>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy1>;
+ managed = "in-band-status";
+ };
+
+ port@2 {
+ reg = <2>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy2>;
+ managed = "in-band-status";
+ };
+
+ port@3 {
+ reg = <3>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy3>;
+ managed = "in-band-status";
+ };
+
+ port@4 {
+ reg = <4>;
+ ethernet = <&enetc_port2>;
+ phy-mode = "internal";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+
+ port@5 {
+ reg = <5>;
+ ethernet = <&enetc_port3>;
+ phy-mode = "internal";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+ # Seville VSC9953 (NXP T1040)
+ - |
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ethernet-switch@800000 {
+ compatible = "mscc,vsc9953-switch";
+ reg = <0x800000 0x290000>;
+ little-endian;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy0>;
+ managed = "in-band-status";
+ };
+
+ port@1 {
+ reg = <1>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy1>;
+ managed = "in-band-status";
+ };
+
+ port@2 {
+ reg = <2>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy2>;
+ managed = "in-band-status";
+ };
+
+ port@3 {
+ reg = <3>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy3>;
+ managed = "in-band-status";
+ };
+
+ port@4 {
+ reg = <4>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy4>;
+ managed = "in-band-status";
+ };
+
+ port@5 {
+ reg = <5>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy5>;
+ managed = "in-band-status";
+ };
+
+ port@6 {
+ reg = <6>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy6>;
+ managed = "in-band-status";
+ };
+
+ port@7 {
+ reg = <7>;
+ phy-mode = "qsgmii";
+ phy-handle = <&phy7>;
+ managed = "in-band-status";
+ };
+
+ port@8 {
+ reg = <8>;
+ phy-mode = "internal";
+ ethernet = <&enet0>;
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+
+ port@9 {
+ reg = <9>;
+ phy-mode = "internal";
+ ethernet = <&enet1>;
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
deleted file mode 100644
index 18247ebfc487..000000000000
--- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt
+++ /dev/null
@@ -1,327 +0,0 @@
-Mediatek MT7530 Ethernet switch
-================================
-
-Required properties:
-
-- compatible: may be compatible = "mediatek,mt7530"
- or compatible = "mediatek,mt7621"
- or compatible = "mediatek,mt7531"
-- #address-cells: Must be 1.
-- #size-cells: Must be 0.
-- mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
- on multi-chip module belong to MT7623A has or the remotely standalone
- chip as the function MT7623N reference board provided for.
-
-If compatible mediatek,mt7530 is set then the following properties are required
-
-- core-supply: Phandle to the regulator node necessary for the core power.
-- io-supply: Phandle to the regulator node necessary for the I/O power.
- See Documentation/devicetree/bindings/regulator/mt6323-regulator.txt
- for details for the regulator setup on these boards.
-
-If the property mediatek,mcm isn't defined, following property is required
-
-- reset-gpios: Should be a gpio specifier for a reset line.
-
-Else, following properties are required
-
-- resets : Phandle pointing to the system reset controller with
- line index for the ethsys.
-- reset-names : Should be set to "mcm".
-
-Required properties for the child nodes within ports container:
-
-- reg: Port address described must be 6 for CPU port and from 0 to 5 for
- user ports.
-- phy-mode: String, the following values are acceptable for port labeled
- "cpu":
- If compatible mediatek,mt7530 or mediatek,mt7621 is set,
- must be either "trgmii" or "rgmii"
- If compatible mediatek,mt7531 is set,
- must be either "sgmii", "1000base-x" or "2500base-x"
-
-Port 5 of mt7530 and mt7621 switch is muxed between:
-1. GMAC5: GMAC5 can interface with another external MAC or PHY.
-2. PHY of port 0 or port 4: PHY interfaces with an external MAC like 2nd GMAC
- of the SOC. Used in many setups where port 0/4 becomes the WAN port.
- Note: On a MT7621 SOC with integrated switch: 2nd GMAC can only connected to
- GMAC5 when the gpios for RGMII2 (GPIO 22-33) are not used and not
- connected to external component!
-
-Port 5 modes/configurations:
-1. Port 5 is disabled and isolated: An external phy can interface to the 2nd
- GMAC of the SOC.
- In the case of a build-in MT7530 switch, port 5 shares the RGMII bus with 2nd
- GMAC and an optional external phy. Mind the GPIO/pinctl settings of the SOC!
-2. Port 5 is muxed to PHY of port 0/4: Port 0/4 interfaces with 2nd GMAC.
- It is a simple MAC to PHY interface, port 5 needs to be setup for xMII mode
- and RGMII delay.
-3. Port 5 is muxed to GMAC5 and can interface to an external phy.
- Port 5 becomes an extra switch port.
- Only works on platform where external phy TX<->RX lines are swapped.
- Like in the Ubiquiti ER-X-SFP.
-4. Port 5 is muxed to GMAC5 and interfaces with the 2nd GAMC as 2nd CPU port.
- Currently a 2nd CPU port is not supported by DSA code.
-
-Depending on how the external PHY is wired:
-1. normal: The PHY can only connect to 2nd GMAC but not to the switch
-2. swapped: RGMII TX, RX are swapped; external phy interface with the switch as
- a ethernet port. But can't interface to the 2nd GMAC.
-
-Based on the DT the port 5 mode is configured.
-
-Driver tries to lookup the phy-handle of the 2nd GMAC of the master device.
-When phy-handle matches PHY of port 0 or 4 then port 5 set-up as mode 2.
-phy-mode must be set, see also example 2 below!
- * mt7621: phy-mode = "rgmii-txid";
- * mt7623: phy-mode = "rgmii";
-
-Optional properties:
-
-- gpio-controller: Boolean; if defined, MT7530's LED controller will run on
- GPIO mode.
-- #gpio-cells: Must be 2 if gpio-controller is defined.
-- interrupt-controller: Boolean; Enables the internal interrupt controller.
-
-If interrupt-controller is defined, the following properties are required.
-
-- #interrupt-cells: Must be 1.
-- interrupts: Parent interrupt for the interrupt controller.
-
-See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional
-required, optional properties and how the integrated switch subnodes must
-be specified.
-
-Example:
-
- &mdio0 {
- switch@0 {
- compatible = "mediatek,mt7530";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- core-supply = <&mt6323_vpa_reg>;
- io-supply = <&mt6323_vemc3v3_reg>;
- reset-gpios = <&pio 33 0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
- port@0 {
- reg = <0>;
- label = "lan0";
- };
-
- port@1 {
- reg = <1>;
- label = "lan1";
- };
-
- port@2 {
- reg = <2>;
- label = "lan2";
- };
-
- port@3 {
- reg = <3>;
- label = "lan3";
- };
-
- port@4 {
- reg = <4>;
- label = "wan";
- };
-
- port@6 {
- reg = <6>;
- label = "cpu";
- ethernet = <&gmac0>;
- phy-mode = "trgmii";
- fixed-link {
- speed = <1000>;
- full-duplex;
- };
- };
- };
- };
- };
-
-Example 2: MT7621: Port 4 is WAN port: 2nd GMAC -> Port 5 -> PHY port 4.
-
-&eth {
- gmac0: mac@0 {
- compatible = "mediatek,eth-mac";
- reg = <0>;
- phy-mode = "rgmii";
-
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
-
- gmac1: mac@1 {
- compatible = "mediatek,eth-mac";
- reg = <1>;
- phy-mode = "rgmii-txid";
- phy-handle = <&phy4>;
- };
-
- mdio: mdio-bus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- /* Internal phy */
- phy4: ethernet-phy@4 {
- reg = <4>;
- };
-
- mt7530: switch@1f {
- compatible = "mediatek,mt7621";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x1f>;
- pinctrl-names = "default";
- mediatek,mcm;
-
- resets = <&rstctrl 2>;
- reset-names = "mcm";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan0";
- };
-
- port@1 {
- reg = <1>;
- label = "lan1";
- };
-
- port@2 {
- reg = <2>;
- label = "lan2";
- };
-
- port@3 {
- reg = <3>;
- label = "lan3";
- };
-
-/* Commented out. Port 4 is handled by 2nd GMAC.
- port@4 {
- reg = <4>;
- label = "lan4";
- };
-*/
-
- cpu_port0: port@6 {
- reg = <6>;
- label = "cpu";
- ethernet = <&gmac0>;
- phy-mode = "rgmii";
-
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
- };
- };
- };
-};
-
-Example 3: MT7621: Port 5 is connected to external PHY: Port 5 -> external PHY.
-
-&eth {
- gmac0: mac@0 {
- compatible = "mediatek,eth-mac";
- reg = <0>;
- phy-mode = "rgmii";
-
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
-
- mdio: mdio-bus {
- #address-cells = <1>;
- #size-cells = <0>;
-
- /* External phy */
- ephy5: ethernet-phy@7 {
- reg = <7>;
- };
-
- mt7530: switch@1f {
- compatible = "mediatek,mt7621";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0x1f>;
- pinctrl-names = "default";
- mediatek,mcm;
-
- resets = <&rstctrl 2>;
- reset-names = "mcm";
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan0";
- };
-
- port@1 {
- reg = <1>;
- label = "lan1";
- };
-
- port@2 {
- reg = <2>;
- label = "lan2";
- };
-
- port@3 {
- reg = <3>;
- label = "lan3";
- };
-
- port@4 {
- reg = <4>;
- label = "lan4";
- };
-
- port@5 {
- reg = <5>;
- label = "lan5";
- phy-mode = "rgmii";
- phy-handle = <&ephy5>;
- };
-
- cpu_port0: port@6 {
- reg = <6>;
- label = "cpu";
- ethernet = <&gmac0>;
- phy-mode = "rgmii";
-
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/net/dsa/ocelot.txt b/Documentation/devicetree/bindings/net/dsa/ocelot.txt
deleted file mode 100644
index 7a271d070b72..000000000000
--- a/Documentation/devicetree/bindings/net/dsa/ocelot.txt
+++ /dev/null
@@ -1,213 +0,0 @@
-Microchip Ocelot switch driver family
-=====================================
-
-Felix
------
-
-Currently the switches supported by the felix driver are:
-
-- VSC9959 (Felix)
-- VSC9953 (Seville)
-
-The VSC9959 switch is found in the NXP LS1028A. It is a PCI device, part of the
-larger ENETC root complex. As a result, the ethernet-switch node is a sub-node
-of the PCIe root complex node and its "reg" property conforms to the parent
-node bindings:
-
-* reg: Specifies PCIe Device Number and Function Number of the endpoint device,
- in this case for the Ethernet L2Switch it is PF5 (of device 0, bus 0).
-
-It does not require a "compatible" string.
-
-The interrupt line is used to signal availability of PTP TX timestamps and for
-TSN frame preemption.
-
-For the external switch ports, depending on board configuration, "phy-mode" and
-"phy-handle" are populated by board specific device tree instances. Ports 4 and
-5 are fixed as internal ports in the NXP LS1028A instantiation.
-
-The CPU port property ("ethernet") configures the feature called "NPI port" in
-the Ocelot hardware core. The CPU port in Ocelot is a set of queues, which are
-connected, in the Node Processor Interface (NPI) mode, to an Ethernet port.
-By default, in fsl-ls1028a.dtsi, the NPI port is assigned to the internal
-2.5Gbps port@4, but can be moved to the 1Gbps port@5, depending on the specific
-use case. Moving the NPI port to an external switch port is hardware possible,
-but there is no platform support for the Linux system on the LS1028A chip to
-operate as an entire slave DSA chip. NPI functionality (and therefore DSA
-tagging) is supported on a single port at a time.
-
-Any port can be disabled (and in fsl-ls1028a.dtsi, they are indeed all disabled
-by default, and should be enabled on a per-board basis). But if any external
-switch port is enabled at all, the ENETC PF2 (enetc_port2) should be enabled as
-well, regardless of whether it is configured as the DSA master or not. This is
-because the Felix PHYLINK implementation accesses the MAC PCS registers, which
-in hardware truly belong to the ENETC port #2 and not to Felix.
-
-Supported PHY interface types (appropriate SerDes protocol setting changes are
-needed in the RCW binary):
-
-* phy_mode = "internal": on ports 4 and 5
-* phy_mode = "sgmii": on ports 0, 1, 2, 3
-* phy_mode = "qsgmii": on ports 0, 1, 2, 3
-* phy_mode = "usxgmii": on ports 0, 1, 2, 3
-* phy_mode = "2500base-x": on ports 0, 1, 2, 3
-
-For the rest of the device tree binding definitions, which are standard DSA and
-PCI, refer to the following documents:
-
-Documentation/devicetree/bindings/net/dsa/dsa.txt
-Documentation/devicetree/bindings/pci/pci.txt
-
-Example:
-
-&soc {
- pcie@1f0000000 { /* Integrated Endpoint Root Complex */
- ethernet-switch@0,5 {
- reg = <0x000500 0 0 0 0>;
- /* IEP INT_B */
- interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- /* External ports */
- port@0 {
- reg = <0>;
- label = "swp0";
- };
-
- port@1 {
- reg = <1>;
- label = "swp1";
- };
-
- port@2 {
- reg = <2>;
- label = "swp2";
- };
-
- port@3 {
- reg = <3>;
- label = "swp3";
- };
-
- /* Tagging CPU port */
- port@4 {
- reg = <4>;
- ethernet = <&enetc_port2>;
- phy-mode = "internal";
-
- fixed-link {
- speed = <2500>;
- full-duplex;
- };
- };
-
- /* Non-tagging CPU port */
- port@5 {
- reg = <5>;
- phy-mode = "internal";
- status = "disabled";
-
- fixed-link {
- speed = <1000>;
- full-duplex;
- };
- };
- };
- };
- };
-};
-
-The VSC9953 switch is found inside NXP T1040. It is a platform device with the
-following required properties:
-
-- compatible:
- Must be "mscc,vsc9953-switch".
-
-Supported PHY interface types (appropriate SerDes protocol setting changes are
-needed in the RCW binary):
-
-* phy_mode = "internal": on ports 8 and 9
-* phy_mode = "sgmii": on ports 0, 1, 2, 3, 4, 5, 6, 7
-* phy_mode = "qsgmii": on ports 0, 1, 2, 3, 4, 5, 6, 7
-
-Example:
-
-&soc {
- ethernet-switch@800000 {
- #address-cells = <0x1>;
- #size-cells = <0x0>;
- compatible = "mscc,vsc9953-switch";
- little-endian;
- reg = <0x800000 0x290000>;
-
- ports {
- #address-cells = <0x1>;
- #size-cells = <0x0>;
-
- port@0 {
- reg = <0x0>;
- label = "swp0";
- };
-
- port@1 {
- reg = <0x1>;
- label = "swp1";
- };
-
- port@2 {
- reg = <0x2>;
- label = "swp2";
- };
-
- port@3 {
- reg = <0x3>;
- label = "swp3";
- };
-
- port@4 {
- reg = <0x4>;
- label = "swp4";
- };
-
- port@5 {
- reg = <0x5>;
- label = "swp5";
- };
-
- port@6 {
- reg = <0x6>;
- label = "swp6";
- };
-
- port@7 {
- reg = <0x7>;
- label = "swp7";
- };
-
- port@8 {
- reg = <0x8>;
- phy-mode = "internal";
- ethernet = <&enet0>;
-
- fixed-link {
- speed = <2500>;
- full-duplex;
- };
- };
-
- port@9 {
- reg = <0x9>;
- phy-mode = "internal";
- status = "disabled";
-
- fixed-link {
- speed = <2500>;
- full-duplex;
- };
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.yaml b/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
index f3c88371d76c..978162df51f7 100644
--- a/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
@@ -159,7 +159,6 @@ examples:
port@0 {
reg = <0>;
- label = "cpu";
ethernet = <&gmac1>;
phy-mode = "rgmii";
@@ -221,7 +220,6 @@ examples:
port@0 {
reg = <0>;
- label = "cpu";
ethernet = <&gmac1>;
phy-mode = "rgmii";
@@ -268,7 +266,6 @@ examples:
port@6 {
reg = <0>;
- label = "cpu";
ethernet = <&gmac1>;
phy-mode = "sgmii";
diff --git a/Documentation/devicetree/bindings/net/dsa/realtek.yaml b/Documentation/devicetree/bindings/net/dsa/realtek.yaml
index 4f99aff029dc..1a7d45a8ad66 100644
--- a/Documentation/devicetree/bindings/net/dsa/realtek.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/realtek.yaml
@@ -189,7 +189,6 @@ examples:
};
port@5 {
reg = <5>;
- label = "cpu";
ethernet = <&gmac0>;
phy-mode = "rgmii";
fixed-link {
@@ -277,7 +276,6 @@ examples:
};
port@6 {
reg = <6>;
- label = "cpu";
ethernet = <&fec1>;
phy-mode = "rgmii";
tx-internal-delay-ps = <2000>;
diff --git a/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
new file mode 100644
index 000000000000..7ca9c19a157c
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/renesas,rzn1-a5psw.yaml
@@ -0,0 +1,158 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/renesas,rzn1-a5psw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/N1 Advanced 5 ports ethernet switch
+
+maintainers:
+ - Clément Léger <clement.leger@bootlin.com>
+
+description: |
+ The advanced 5 ports switch is present on the Renesas RZ/N1 SoC family and
+ handles 4 ports + 1 CPU management port.
+
+allOf:
+ - $ref: dsa.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,r9a06g032-a5psw
+ - const: renesas,rzn1-a5psw
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: Device Level Ring (DLR) interrupt
+ - description: Switch interrupt
+ - description: Parallel Redundancy Protocol (PRP) interrupt
+ - description: Integrated HUB module interrupt
+ - description: Receive Pattern Match interrupt
+
+ interrupt-names:
+ items:
+ - const: dlr
+ - const: switch
+ - const: prp
+ - const: hub
+ - const: ptrn
+
+ power-domains:
+ maxItems: 1
+
+ mdio:
+ $ref: /schemas/net/mdio.yaml#
+ unevaluatedProperties: false
+
+ clocks:
+ items:
+ - description: AHB clock used for the switch register interface
+ - description: Switch system clock
+
+ clock-names:
+ items:
+ - const: hclk
+ - const: clk
+
+ ethernet-ports:
+ type: object
+ properties:
+ '#address-cells':
+ const: 1
+ '#size-cells':
+ const: 0
+
+ patternProperties:
+ "^(ethernet-)?port@[0-4]$":
+ type: object
+ description: Ethernet switch ports
+
+ properties:
+ pcs-handle:
+ description:
+ phandle pointing to a PCS sub-node compatible with
+ renesas,rzn1-miic.yaml#
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - power-domains
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ switch@44050000 {
+ compatible = "renesas,r9a06g032-a5psw", "renesas,rzn1-a5psw";
+ reg = <0x44050000 0x10000>;
+ clocks = <&sysctrl R9A06G032_HCLK_SWITCH>, <&sysctrl R9A06G032_CLK_SWITCH>;
+ clock-names = "hclk", "clk";
+ power-domains = <&sysctrl>;
+ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "dlr", "switch", "prp", "hub", "ptrn";
+
+ dsa,member = <0 0>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ label = "lan0";
+ phy-handle = <&switch0phy3>;
+ pcs-handle = <&mii_conv4>;
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan1";
+ phy-handle = <&switch0phy1>;
+ pcs-handle = <&mii_conv3>;
+ };
+
+ port@4 {
+ reg = <4>;
+ ethernet = <&gmac2>;
+ phy-mode = "internal";
+
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ };
+ };
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reset-gpios = <&gpio0a 2 GPIO_ACTIVE_HIGH>;
+ reset-delay-us = <15>;
+ clock-frequency = <2500000>;
+
+ switch0phy1: ethernet-phy@1{
+ reg = <1>;
+ };
+
+ switch0phy3: ethernet-phy@3{
+ reg = <3>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
index bbf4a13f6d75..258bef483673 100644
--- a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
+++ b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
@@ -75,7 +75,6 @@ switch@0 {
};
vsc: port@6 {
reg = <6>;
- label = "cpu";
ethernet = <&gmac1>;
phy-mode = "rgmii";
fixed-link {
@@ -117,7 +116,6 @@ switch@2,0 {
};
vsc: port@6 {
reg = <6>;
- label = "cpu";
ethernet = <&enet0>;
phy-mode = "rgmii";
fixed-link {
diff --git a/Documentation/devicetree/bindings/net/emac_rockchip.txt b/Documentation/devicetree/bindings/net/emac_rockchip.txt
deleted file mode 100644
index 05bd7dafce17..000000000000
--- a/Documentation/devicetree/bindings/net/emac_rockchip.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* ARC EMAC 10/100 Ethernet platform driver for Rockchip RK3036/RK3066/RK3188 SoCs
-
-Required properties:
-- compatible: should be "rockchip,<name>-emac"
- "rockchip,rk3036-emac": found on RK3036 SoCs
- "rockchip,rk3066-emac": found on RK3066 SoCs
- "rockchip,rk3188-emac": found on RK3188 SoCs
-- reg: Address and length of the register set for the device
-- interrupts: Should contain the EMAC interrupts
-- rockchip,grf: phandle to the syscon grf used to control speed and mode
- for emac.
-- phy: see ethernet.txt file in the same directory.
-- phy-mode: see ethernet.txt file in the same directory.
-
-Optional properties:
-- phy-supply: phandle to a regulator if the PHY needs one
-
-Clock handling:
-- clocks: Must contain an entry for each entry in clock-names.
-- clock-names: Shall be "hclk" for the host clock needed to calculate and set
- polling period of EMAC and "macref" for the reference clock needed to transfer
- data to and from the phy.
-
-Child nodes of the driver are the individual PHY devices connected to the
-MDIO bus. They must have a "reg" property given the PHY address on the MDIO bus.
-
-Examples:
-
-ethernet@10204000 {
- compatible = "rockchip,rk3188-emac";
- reg = <0xc0fc2000 0x3c>;
- interrupts = <6>;
- mac-address = [ 00 11 22 33 44 55 ];
-
- clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
- clock-names = "hclk", "macref";
-
- pinctrl-names = "default";
- pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
-
- rockchip,grf = <&grf>;
-
- phy = <&phy0>;
- phy-mode = "rmii";
- phy-supply = <&vcc_rmii>;
-
- #address-cells = <1>;
- #size-cells = <0>;
- phy0: ethernet-phy@0 {
- reg = <1>;
- };
-};
diff --git a/Documentation/devicetree/bindings/net/engleder,tsnep.yaml b/Documentation/devicetree/bindings/net/engleder,tsnep.yaml
index d0e1476e15b5..5bd964a46a9d 100644
--- a/Documentation/devicetree/bindings/net/engleder,tsnep.yaml
+++ b/Documentation/devicetree/bindings/net/engleder,tsnep.yaml
@@ -20,7 +20,26 @@ properties:
maxItems: 1
interrupts:
- maxItems: 1
+ minItems: 1
+ maxItems: 8
+
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: mac
+ - const: txrx-1
+ - const: txrx-2
+ - const: txrx-3
+ - const: txrx-4
+ - const: txrx-5
+ - const: txrx-6
+ - const: txrx-7
+ description:
+ The main interrupt for basic MAC features and the first TX/RX queue pair
+ is named "mac". "txrx-[1-7]" are the interrupts for additional TX/RX
+ queue pairs.
+
+ dma-coherent: true
local-mac-address: true
@@ -58,7 +77,7 @@ examples:
axi {
#address-cells = <2>;
#size-cells = <2>;
- tnsep0: ethernet@a0000000 {
+ tsnep0: ethernet@a0000000 {
compatible = "engleder,tsnep";
reg = <0x0 0xa0000000 0x0 0x10000>;
interrupts = <0 89 1>;
@@ -76,4 +95,24 @@ examples:
};
};
};
+
+ tsnep1: ethernet@a0010000 {
+ compatible = "engleder,tsnep";
+ reg = <0x0 0xa0010000 0x0 0x10000>;
+ interrupts = <0 93 1>, <0 94 1>, <0 95 1>, <0 96 1>;
+ interrupt-names = "mac", "txrx-1", "txrx-2", "txrx-3";
+ interrupt-parent = <&gic>;
+ local-mac-address = [00 00 00 00 00 00];
+ phy-mode = "rgmii";
+ phy-handle = <&phy1>;
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ suppress-preamble;
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ rxc-skew-ps = <1080>;
+ };
+ };
+ };
};
diff --git a/Documentation/devicetree/bindings/net/ethernet-controller.yaml b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
index 4f15463611f8..4b3c590fcebf 100644
--- a/Documentation/devicetree/bindings/net/ethernet-controller.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-controller.yaml
@@ -67,6 +67,7 @@ properties:
- gmii
- sgmii
- qsgmii
+ - qusgmii
- tbi
- rev-mii
- rmii
@@ -133,12 +134,6 @@ properties:
and is useful for determining certain configuration settings
such as flow control thresholds.
- rx-internal-delay-ps:
- description: |
- RGMII Receive Clock Delay defined in pico seconds.
- This is used for controllers that have configurable RX internal delays.
- If this property is present then the MAC applies the RX delay.
-
sfp:
$ref: /schemas/types.yaml#/definitions/phandle
description:
@@ -150,12 +145,6 @@ properties:
The size of the controller\'s transmit fifo in bytes. This
is used for components that can have configurable fifo sizes.
- tx-internal-delay-ps:
- description: |
- RGMII Transmit Clock Delay defined in pico seconds.
- This is used for controllers that have configurable TX internal delays.
- If this property is present then the MAC applies the TX delay.
-
managed:
description:
Specifies the PHY management type. If auto is set and fixed-link
@@ -167,70 +156,88 @@ properties:
- in-band-status
fixed-link:
- allOf:
- - if:
- type: array
- then:
- deprecated: true
- items:
- - minimum: 0
- maximum: 31
- description:
- Emulated PHY ID, choose any but unique to the all
- specified fixed-links
-
- - enum: [0, 1]
- description:
- Duplex configuration. 0 for half duplex or 1 for
- full duplex
-
- - enum: [10, 100, 1000, 2500, 10000]
- description:
- Link speed in Mbits/sec.
-
- - enum: [0, 1]
- description:
- Pause configuration. 0 for no pause, 1 for pause
-
- - enum: [0, 1]
- description:
- Asymmetric pause configuration. 0 for no asymmetric
- pause, 1 for asymmetric pause
-
-
- - if:
- type: object
- then:
- properties:
- speed:
- description:
- Link speed.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [10, 100, 1000, 2500, 10000]
-
- full-duplex:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- Indicates that full-duplex is used. When absent, half
- duplex is assumed.
-
- pause:
- $ref: /schemas/types.yaml#definitions/flag
- description:
- Indicates that pause should be enabled.
-
- asym-pause:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- Indicates that asym_pause should be enabled.
-
- link-gpios:
- maxItems: 1
- description:
- GPIO to determine if the link is up
-
- required:
- - speed
+ oneOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ deprecated: true
+ items:
+ - minimum: 0
+ maximum: 31
+ description:
+ Emulated PHY ID, choose any but unique to the all
+ specified fixed-links
+
+ - enum: [0, 1]
+ description:
+ Duplex configuration. 0 for half duplex or 1 for
+ full duplex
+
+ - enum: [10, 100, 1000, 2500, 10000]
+ description:
+ Link speed in Mbits/sec.
+
+ - enum: [0, 1]
+ description:
+ Pause configuration. 0 for no pause, 1 for pause
+
+ - enum: [0, 1]
+ description:
+ Asymmetric pause configuration. 0 for no asymmetric
+ pause, 1 for asymmetric pause
+ - type: object
+ additionalProperties: false
+ properties:
+ speed:
+ description:
+ Link speed.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [10, 100, 1000, 2500, 10000]
+
+ full-duplex:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Indicates that full-duplex is used. When absent, half
+ duplex is assumed.
+
+ pause:
+ $ref: /schemas/types.yaml#definitions/flag
+ description:
+ Indicates that pause should be enabled.
+
+ asym-pause:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Indicates that asym_pause should be enabled.
+
+ link-gpios:
+ maxItems: 1
+ description:
+ GPIO to determine if the link is up
+
+ required:
+ - speed
+
+allOf:
+ - if:
+ properties:
+ phy-mode:
+ contains:
+ enum:
+ - rgmii
+ - rgmii-rxid
+ - rgmii-txid
+ - rgmii-id
+ then:
+ properties:
+ rx-internal-delay-ps:
+ description:
+ RGMII Receive Clock Delay defined in pico seconds.This is used for
+ controllers that have configurable RX internal delays. If this
+ property is present then the MAC applies the RX delay.
+ tx-internal-delay-ps:
+ description:
+ RGMII Transmit Clock Delay defined in pico seconds.This is used for
+ controllers that have configurable TX internal delays. If this
+ property is present then the MAC applies the TX delay.
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index ed1415a4381f..ad808e9ce5b9 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
@@ -144,6 +144,12 @@ properties:
Mark the corresponding energy efficient ethernet mode as
broken and request the ethernet to stop advertising it.
+ pses:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ maxItems: 1
+ description:
+ Specifies a reference to a node representing a Power Sourcing Equipment.
+
phy-is-integrated:
$ref: /schemas/types.yaml#/definitions/flag
description:
diff --git a/Documentation/devicetree/bindings/net/fsl,fec.yaml b/Documentation/devicetree/bindings/net/fsl,fec.yaml
index daa2f79a294f..e0f376f7e274 100644
--- a/Documentation/devicetree/bindings/net/fsl,fec.yaml
+++ b/Documentation/devicetree/bindings/net/fsl,fec.yaml
@@ -21,6 +21,7 @@ properties:
- fsl,imx28-fec
- fsl,imx6q-fec
- fsl,mvf600-fec
+ - fsl,s32v234-fec
- items:
- enum:
- fsl,imx53-fec
@@ -58,6 +59,11 @@ properties:
- fsl,imx8qxp-fec
- const: fsl,imx8qm-fec
- const: fsl,imx6sx-fec
+ - items:
+ - enum:
+ - fsl,imx8ulp-fec
+ - const: fsl,imx6ul-fec
+ - const: fsl,imx6q-fec
reg:
maxItems: 1
@@ -121,6 +127,10 @@ properties:
mac-address: true
+ nvmem-cells: true
+
+ nvmem-cell-names: true
+
tx-internal-delay-ps:
enum: [0, 2000]
@@ -183,6 +193,7 @@ properties:
Should specify the gpio for phy reset.
phy-reset-duration:
+ $ref: /schemas/types.yaml#/definitions/uint32
deprecated: true
description:
Reset duration in milliseconds. Should present only if property
@@ -191,12 +202,14 @@ properties:
and 1 millisecond will be used instead.
phy-reset-active-high:
+ type: boolean
deprecated: true
description:
If present then the reset sequence using the GPIO specified in the
"phy-reset-gpios" property is reversed (H=reset state, L=operation state).
phy-reset-post-delay:
+ $ref: /schemas/types.yaml#/definitions/uint32
deprecated: true
description:
Post reset delay in milliseconds. If present then a delay of phy-reset-post-delay
@@ -213,7 +226,7 @@ required:
# least undocumented properties. However, PHY may have a deprecated option to
# place PHY OF properties in the MAC node, such as Micrel PHY, and we can find
# these boards which is based on i.MX6QDL.
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/net/fsl,fman-dtsec.yaml b/Documentation/devicetree/bindings/net/fsl,fman-dtsec.yaml
new file mode 100644
index 000000000000..3a35ac1c260d
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/fsl,fman-dtsec.yaml
@@ -0,0 +1,145 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/fsl,fman-dtsec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP FMan MAC
+
+maintainers:
+ - Madalin Bucur <madalin.bucur@nxp.com>
+
+description: |
+ Each FMan has several MACs, each implementing an Ethernet interface. Earlier
+ versions of FMan used the Datapath Three Speed Ethernet Controller (dTSEC) for
+ 10/100/1000 MBit/s speeds, and the 10-Gigabit Ethernet Media Access Controller
+ (10GEC) for 10 Gbit/s speeds. Later versions of FMan use the Multirate
+ Ethernet Media Access Controller (mEMAC) to handle all speeds.
+
+properties:
+ compatible:
+ enum:
+ - fsl,fman-dtsec
+ - fsl,fman-xgec
+ - fsl,fman-memac
+
+ cell-index:
+ maximum: 64
+ description: |
+ FManV2:
+ register[bit] MAC cell-index
+ ============================================================
+ FM_EPI[16] XGEC 8
+ FM_EPI[16+n] dTSECn n-1
+ FM_NPI[11+n] dTSECn n-1
+ n = 1,..,5
+
+ FManV3:
+ register[bit] MAC cell-index
+ ============================================================
+ FM_EPI[16+n] mEMACn n-1
+ FM_EPI[25] mEMAC10 9
+
+ FM_NPI[11+n] mEMACn n-1
+ FM_NPI[10] mEMAC10 9
+ FM_NPI[11] mEMAC9 8
+ n = 1,..8
+
+ FM_EPI and FM_NPI are located in the FMan memory map.
+
+ 2. SoC registers:
+
+ - P2041, P3041, P4080 P5020, P5040:
+ register[bit] FMan MAC cell
+ Unit index
+ ============================================================
+ DCFG_DEVDISR2[7] 1 XGEC 8
+ DCFG_DEVDISR2[7+n] 1 dTSECn n-1
+ DCFG_DEVDISR2[15] 2 XGEC 8
+ DCFG_DEVDISR2[15+n] 2 dTSECn n-1
+ n = 1,..5
+
+ - T1040, T2080, T4240, B4860:
+ register[bit] FMan MAC cell
+ Unit index
+ ============================================================
+ DCFG_CCSR_DEVDISR2[n-1] 1 mEMACn n-1
+ DCFG_CCSR_DEVDISR2[11+n] 2 mEMACn n-1
+ n = 1,..6,9,10
+
+ EVDISR, DCFG_DEVDISR2 and DCFG_CCSR_DEVDISR2 are located in
+ the specific SoC "Device Configuration/Pin Control" Memory
+ Map.
+
+ reg:
+ maxItems: 1
+
+ fsl,fman-ports:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ maxItems: 2
+ description: |
+ An array of two references: the first is the FMan RX port and the second
+ is the TX port used by this MAC.
+
+ ptp-timer:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: A reference to the IEEE1588 timer
+
+ pcsphy-handle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: A reference to the PCS (typically found on the SerDes)
+
+ tbi-handle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: A reference to the (TBI-based) PCS
+
+required:
+ - compatible
+ - cell-index
+ - reg
+ - fsl,fman-ports
+ - ptp-timer
+
+allOf:
+ - $ref: ethernet-controller.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,fman-dtsec
+ then:
+ required:
+ - tbi-handle
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,fman-memac
+ then:
+ required:
+ - pcsphy-handle
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ethernet@e0000 {
+ compatible = "fsl,fman-dtsec";
+ cell-index = <0>;
+ reg = <0xe0000 0x1000>;
+ fsl,fman-ports = <&fman1_rx8 &fman1_tx28>;
+ ptp-timer = <&ptp_timer>;
+ tbi-handle = <&tbi0>;
+ };
+ - |
+ ethernet@e8000 {
+ cell-index = <4>;
+ compatible = "fsl,fman-memac";
+ reg = <0xe8000 0x1000>;
+ fsl,fman-ports = <&fman0_rx_0x0c &fman0_tx_0x2c>;
+ ptp-timer = <&ptp_timer0>;
+ pcsphy-handle = <&pcsphy4>;
+ phy-handle = <&sgmii_phy1>;
+ phy-connection-type = "sgmii";
+ };
+...
diff --git a/Documentation/devicetree/bindings/net/fsl-fman.txt b/Documentation/devicetree/bindings/net/fsl-fman.txt
index 801efc7d6818..b9055335db3b 100644
--- a/Documentation/devicetree/bindings/net/fsl-fman.txt
+++ b/Documentation/devicetree/bindings/net/fsl-fman.txt
@@ -232,133 +232,7 @@ port@81000 {
=============================================================================
FMan dTSEC/XGEC/mEMAC Node
-DESCRIPTION
-
-mEMAC/dTSEC/XGEC are the Ethernet network interfaces
-
-PROPERTIES
-
-- compatible
- Usage: required
- Value type: <stringlist>
- Definition: A standard property.
- Must include one of the following:
- - "fsl,fman-dtsec" for dTSEC MAC
- - "fsl,fman-xgec" for XGEC MAC
- - "fsl,fman-memac" for mEMAC MAC
-
-- cell-index
- Usage: required
- Value type: <u32>
- Definition: Specifies the MAC id.
-
- The cell-index value may be used by the FMan or the SoC, to
- identify the MAC unit in the FMan (or SoC) memory map.
- In the tables below there's a description of the cell-index
- use, there are two tables, one describes the use of cell-index
- by the FMan, the second describes the use by the SoC:
-
- 1. FMan Registers
-
- FManV2:
- register[bit] MAC cell-index
- ============================================================
- FM_EPI[16] XGEC 8
- FM_EPI[16+n] dTSECn n-1
- FM_NPI[11+n] dTSECn n-1
- n = 1,..,5
-
- FManV3:
- register[bit] MAC cell-index
- ============================================================
- FM_EPI[16+n] mEMACn n-1
- FM_EPI[25] mEMAC10 9
-
- FM_NPI[11+n] mEMACn n-1
- FM_NPI[10] mEMAC10 9
- FM_NPI[11] mEMAC9 8
- n = 1,..8
-
- FM_EPI and FM_NPI are located in the FMan memory map.
-
- 2. SoC registers:
-
- - P2041, P3041, P4080 P5020, P5040:
- register[bit] FMan MAC cell
- Unit index
- ============================================================
- DCFG_DEVDISR2[7] 1 XGEC 8
- DCFG_DEVDISR2[7+n] 1 dTSECn n-1
- DCFG_DEVDISR2[15] 2 XGEC 8
- DCFG_DEVDISR2[15+n] 2 dTSECn n-1
- n = 1,..5
-
- - T1040, T2080, T4240, B4860:
- register[bit] FMan MAC cell
- Unit index
- ============================================================
- DCFG_CCSR_DEVDISR2[n-1] 1 mEMACn n-1
- DCFG_CCSR_DEVDISR2[11+n] 2 mEMACn n-1
- n = 1,..6,9,10
-
- EVDISR, DCFG_DEVDISR2 and DCFG_CCSR_DEVDISR2 are located in
- the specific SoC "Device Configuration/Pin Control" Memory
- Map.
-
-- reg
- Usage: required
- Value type: <prop-encoded-array>
- Definition: A standard property.
-
-- fsl,fman-ports
- Usage: required
- Value type: <prop-encoded-array>
- Definition: An array of two phandles - the first references is
- the FMan RX port and the second is the TX port used by this
- MAC.
-
-- ptp-timer
- Usage required
- Value type: <phandle>
- Definition: A phandle for 1EEE1588 timer.
-
-- pcsphy-handle
- Usage required for "fsl,fman-memac" MACs
- Value type: <phandle>
- Definition: A phandle for pcsphy.
-
-- tbi-handle
- Usage required for "fsl,fman-dtsec" MACs
- Value type: <phandle>
- Definition: A phandle for tbiphy.
-
-EXAMPLE
-
-fman1_tx28: port@a8000 {
- cell-index = <0x28>;
- compatible = "fsl,fman-v2-port-tx";
- reg = <0xa8000 0x1000>;
-};
-
-fman1_rx8: port@88000 {
- cell-index = <0x8>;
- compatible = "fsl,fman-v2-port-rx";
- reg = <0x88000 0x1000>;
-};
-
-ptp-timer: ptp_timer@fe000 {
- compatible = "fsl,fman-ptp-timer";
- reg = <0xfe000 0x1000>;
-};
-
-ethernet@e0000 {
- compatible = "fsl,fman-dtsec";
- cell-index = <0>;
- reg = <0xe0000 0x1000>;
- fsl,fman-ports = <&fman1_rx8 &fman1_tx28>;
- ptp-timer = <&ptp-timer>;
- tbi-handle = <&tbi0>;
-};
+Refer to Documentation/devicetree/bindings/net/fsl,fman-dtsec.yaml
============================================================================
FMan IEEE 1588 Node
diff --git a/Documentation/devicetree/bindings/net/intel,dwmac-plat.yaml b/Documentation/devicetree/bindings/net/intel,dwmac-plat.yaml
index 52a7fa4f49a4..d23fa3771210 100644
--- a/Documentation/devicetree/bindings/net/intel,dwmac-plat.yaml
+++ b/Documentation/devicetree/bindings/net/intel,dwmac-plat.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/intel,dwmac-plat.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel DWMAC glue layer Device Tree Bindings
+title: Intel DWMAC glue layer
maintainers:
- Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@intel.com>
diff --git a/Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt b/Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt
deleted file mode 100644
index 358fed2fab43..000000000000
--- a/Documentation/devicetree/bindings/net/mediatek,mt7620-gsw.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Mediatek Gigabit Switch
-=======================
-
-The mediatek gigabit switch can be found on Mediatek SoCs (mt7620, mt7621).
-
-Required properties:
-- compatible: Should be "mediatek,mt7620-gsw" or "mediatek,mt7621-gsw"
-- reg: Address and length of the register set for the device
-- interrupts: Should contain the gigabit switches interrupt
-- resets: Should contain the gigabit switches resets
-- reset-names: Should contain the reset names "gsw"
-
-Example:
-
-gsw@10110000 {
- compatible = "ralink,mt7620-gsw";
- reg = <0x10110000 8000>;
-
- resets = <&rstctrl 23>;
- reset-names = "gsw";
-
- interrupt-parent = <&intc>;
- interrupts = <17>;
-};
diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
index f5564ecddb62..7ef696204c5a 100644
--- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
@@ -69,6 +69,15 @@ properties:
A list of phandle to the syscon node that handles the SGMII setup which is required for
those SoCs equipped with SGMII.
+ mediatek,wed:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ minItems: 2
+ maxItems: 2
+ items:
+ maxItems: 1
+ description:
+ List of phandles to wireless ethernet dispatch nodes.
+
dma-coherent: true
mdio-bus:
@@ -112,6 +121,8 @@ allOf:
Phandle to the syscon node that handles the ports slew rate and
driver current.
+ mediatek,wed: false
+
- if:
properties:
compatible:
@@ -144,15 +155,6 @@ allOf:
minItems: 1
maxItems: 1
- mediatek,wed:
- $ref: /schemas/types.yaml#/definitions/phandle-array
- minItems: 2
- maxItems: 2
- items:
- maxItems: 1
- description:
- List of phandles to wireless ethernet dispatch nodes.
-
mediatek,pcie-mirror:
$ref: /schemas/types.yaml#/definitions/phandle
description:
@@ -202,6 +204,8 @@ allOf:
minItems: 2
maxItems: 2
+ mediatek,wed: false
+
- if:
properties:
compatible:
@@ -238,6 +242,11 @@ allOf:
minItems: 2
maxItems: 2
+ mediatek,wed-pcie:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the mediatek wed-pcie controller.
+
patternProperties:
"^mac@[0-1]$":
type: object
diff --git a/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml b/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml
index def994c9cbb4..64c893c98d80 100644
--- a/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml
@@ -23,6 +23,7 @@ properties:
- mediatek,mt8516-eth
- mediatek,mt8518-eth
- mediatek,mt8175-eth
+ - mediatek,mt8365-eth
reg:
maxItems: 1
@@ -47,6 +48,22 @@ properties:
Phandle to the device containing the PERICFG register range. This is used
to control the MII mode.
+ mediatek,rmii-rxc:
+ type: boolean
+ description:
+ If present, indicates that the RMII reference clock, which is from external
+ PHYs, is connected to RXC pin. Otherwise, is connected to TXC pin.
+
+ mediatek,rxc-inverse:
+ type: boolean
+ description:
+ If present, indicates that clock on RXC pad will be inversed.
+
+ mediatek,txc-inverse:
+ type: boolean
+ description:
+ If present, indicates that clock on TXC pad will be inversed.
+
mdio:
$ref: mdio.yaml#
unevaluatedProperties: false
diff --git a/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml b/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml
index 61b2fb9e141b..0fa2132fa4f4 100644
--- a/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek-dwmac.yaml
@@ -19,6 +19,7 @@ select:
contains:
enum:
- mediatek,mt2712-gmac
+ - mediatek,mt8188-gmac
- mediatek,mt8195-gmac
required:
- compatible
@@ -37,6 +38,11 @@ properties:
- enum:
- mediatek,mt8195-gmac
- const: snps,dwmac-5.10a
+ - items:
+ - enum:
+ - mediatek,mt8188-gmac
+ - const: mediatek,mt8195-gmac
+ - const: snps,dwmac-5.10a
clocks:
minItems: 5
@@ -74,7 +80,7 @@ properties:
or will round down. Range 0~31*170.
For MT2712 RMII/MII interface, Allowed value need to be a multiple of 550,
or will round down. Range 0~31*550.
- For MT8195 RGMII/RMII/MII interface, Allowed value need to be a multiple of 290,
+ For MT8188/MT8195 RGMII/RMII/MII interface, Allowed value need to be a multiple of 290,
or will round down. Range 0~31*290.
mediatek,rx-delay-ps:
@@ -84,7 +90,7 @@ properties:
or will round down. Range 0~31*170.
For MT2712 RMII/MII interface, Allowed value need to be a multiple of 550,
or will round down. Range 0~31*550.
- For MT8195 RGMII/RMII/MII interface, Allowed value need to be a multiple
+ For MT8188/MT8195 RGMII/RMII/MII interface, Allowed value need to be a multiple
of 290, or will round down. Range 0~31*290.
mediatek,rmii-rxc:
diff --git a/Documentation/devicetree/bindings/net/micrel.txt b/Documentation/devicetree/bindings/net/micrel.txt
index a9ed691ffb03..a407dd1b4614 100644
--- a/Documentation/devicetree/bindings/net/micrel.txt
+++ b/Documentation/devicetree/bindings/net/micrel.txt
@@ -16,6 +16,7 @@ Optional properties:
KSZ8051: register 0x1f, bits 5..4
KSZ8081: register 0x1f, bits 5..4
KSZ8091: register 0x1f, bits 5..4
+ LAN8814: register EP5.0, bit 6
See the respective PHY datasheet for the mode values.
diff --git a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
index 6c86d3d85e99..57ffeb8fc876 100644
--- a/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
+++ b/Documentation/devicetree/bindings/net/microchip,sparx5-switch.yaml
@@ -74,16 +74,20 @@ properties:
ethernet-ports:
type: object
+ additionalProperties: false
+
+ properties:
+ '#address-cells':
+ const: 1
+ '#size-cells':
+ const: 0
+
patternProperties:
"^port@[0-9a-f]+$":
- type: object
+ $ref: /schemas/net/ethernet-controller.yaml#
+ unevaluatedProperties: false
properties:
- '#address-cells':
- const: 1
- '#size-cells':
- const: 0
-
reg:
description: Switch port number
@@ -93,29 +97,11 @@ properties:
phandle of a Ethernet SerDes PHY. This defines which SerDes
instance will handle the Ethernet traffic.
- phy-mode:
- description:
- This specifies the interface used by the Ethernet SerDes towards
- the PHY or SFP.
-
microchip,bandwidth:
description: Specifies bandwidth in Mbit/s allocated to the port.
$ref: "/schemas/types.yaml#/definitions/uint32"
maximum: 25000
- phy-handle:
- description:
- phandle of a Ethernet PHY. This is optional and if provided it
- points to the cuPHY used by the Ethernet SerDes.
-
- sfp:
- description:
- phandle of an SFP. This is optional and used when not specifying
- a cuPHY. It points to the SFP node that describes the SFP used by
- the Ethernet SerDes.
-
- managed: true
-
microchip,sd-sgpio:
description:
Index of the ports Signal Detect SGPIO in the set of 384 SGPIOs
@@ -144,8 +130,6 @@ required:
- reg-names
- interrupts
- interrupt-names
- - resets
- - reset-names
- ethernet-ports
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/net/nfc/marvell,nci.yaml b/Documentation/devicetree/bindings/net/nfc/marvell,nci.yaml
index 1bcaf6ba822c..308485a8ee6c 100644
--- a/Documentation/devicetree/bindings/net/nfc/marvell,nci.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/marvell,nci.yaml
@@ -58,7 +58,6 @@ properties:
spi-cpha: true
spi-cpol: true
- spi-max-frequency: true
required:
- compatible
@@ -85,6 +84,7 @@ allOf:
contains:
const: marvell,nfc-spi
then:
+ $ref: /schemas/spi/spi-peripheral-props.yaml#
properties:
break-control: false
flow-control: false
@@ -108,7 +108,7 @@ allOf:
spi-max-frequency: false
reg: false
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
@@ -128,7 +128,7 @@ examples:
i2c-int-rising;
- reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
+ reset-n-io = <&gpio3 19 GPIO_ACTIVE_LOW>;
};
};
@@ -151,7 +151,7 @@ examples:
interrupt-parent = <&gpio1>;
interrupts = <17 IRQ_TYPE_EDGE_RISING>;
- reset-n-io = <&gpio3 19 GPIO_ACTIVE_HIGH>;
+ reset-n-io = <&gpio3 19 GPIO_ACTIVE_LOW>;
};
};
@@ -162,7 +162,7 @@ examples:
nfc {
compatible = "marvell,nfc-uart";
- reset-n-io = <&gpio3 16 GPIO_ACTIVE_HIGH>;
+ reset-n-io = <&gpio3 16 GPIO_ACTIVE_LOW>;
hci-muxed;
flow-control;
diff --git a/Documentation/devicetree/bindings/net/nfc/nxp,nci.yaml b/Documentation/devicetree/bindings/net/nfc/nxp,nci.yaml
index e381a3c14836..b2558421268a 100644
--- a/Documentation/devicetree/bindings/net/nfc/nxp,nci.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/nxp,nci.yaml
@@ -7,7 +7,6 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP Semiconductors NCI NFC controller
maintainers:
- - Charles Gorand <charles.gorand@effinnov.com>
- Krzysztof Kozlowski <krzk@kernel.org>
properties:
diff --git a/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml b/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml
index ef1155038a2f..1dcbddbc5a74 100644
--- a/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml
@@ -30,8 +30,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
uicc-present:
type: boolean
description: |
@@ -55,10 +53,11 @@ then:
properties:
spi-max-frequency: false
else:
+ $ref: /schemas/spi/spi-peripheral-props.yaml#
required:
- spi-max-frequency
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/net/nfc/st,st95hf.yaml b/Documentation/devicetree/bindings/net/nfc/st,st95hf.yaml
index 963d9531a856..647569051ed8 100644
--- a/Documentation/devicetree/bindings/net/nfc/st,st95hf.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/st,st95hf.yaml
@@ -25,8 +25,6 @@ properties:
st95hfvin-supply:
description: ST95HF transceiver's Vin regulator supply
- spi-max-frequency: true
-
required:
- compatible
- enable-gpio
@@ -34,7 +32,10 @@ required:
- reg
- spi-max-frequency
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml b/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
index 404c8df99364..9cc236ec42f2 100644
--- a/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
+++ b/Documentation/devicetree/bindings/net/nfc/ti,trf7970a.yaml
@@ -40,8 +40,6 @@ properties:
reg:
maxItems: 1
- spi-max-frequency: true
-
ti,enable-gpios:
minItems: 1
maxItems: 2
@@ -65,7 +63,10 @@ required:
- ti,enable-gpios
- vin-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml b/Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml
new file mode 100644
index 000000000000..2bd3efff2485
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nvidia,tegra234-mgbe.yaml
@@ -0,0 +1,162 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nvidia,tegra234-mgbe.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tegra234 MGBE Multi-Gigabit Ethernet Controller
+
+maintainers:
+ - Thierry Reding <treding@nvidia.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+ compatible:
+ const: nvidia,tegra234-mgbe
+
+ reg:
+ maxItems: 3
+
+ reg-names:
+ items:
+ - const: hypervisor
+ - const: mac
+ - const: xpcs
+
+ interrupts:
+ minItems: 1
+ maxItems: 3
+
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: common
+ - const: macsec-ns
+ - const: macsec
+
+ clocks:
+ maxItems: 12
+
+ clock-names:
+ items:
+ - const: mgbe
+ - const: mac
+ - const: mac-divider
+ - const: ptp-ref
+ - const: rx-input-m
+ - const: rx-input
+ - const: tx
+ - const: eee-pcs
+ - const: rx-pcs-input
+ - const: rx-pcs-m
+ - const: rx-pcs
+ - const: tx-pcs
+
+ resets:
+ maxItems: 2
+
+ reset-names:
+ items:
+ - const: mac
+ - const: pcs
+
+ interconnects:
+ items:
+ - description: memory read client
+ - description: memory write client
+
+ interconnect-names:
+ items:
+ - const: dma-mem
+ - const: write
+
+ iommus:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ phy-handle: true
+
+ phy-mode:
+ contains:
+ enum:
+ - usxgmii
+ - 10gbase-kr
+
+ mdio:
+ $ref: mdio.yaml#
+ unevaluatedProperties: false
+ description:
+ Optional node for embedded MDIO controller.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+ - phy-handle
+ - phy-mode
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra234-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/tegra234-mc.h>
+ #include <dt-bindings/power/tegra234-powergate.h>
+ #include <dt-bindings/reset/tegra234-reset.h>
+
+ ethernet@6800000 {
+ compatible = "nvidia,tegra234-mgbe";
+ reg = <0x06800000 0x10000>,
+ <0x06810000 0x10000>,
+ <0x068a0000 0x10000>;
+ reg-names = "hypervisor", "mac", "xpcs";
+ interrupts = <GIC_SPI 384 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "common";
+ clocks = <&bpmp TEGRA234_CLK_MGBE0_APP>,
+ <&bpmp TEGRA234_CLK_MGBE0_MAC>,
+ <&bpmp TEGRA234_CLK_MGBE0_MAC_DIVIDER>,
+ <&bpmp TEGRA234_CLK_MGBE0_PTP_REF>,
+ <&bpmp TEGRA234_CLK_MGBE0_RX_INPUT_M>,
+ <&bpmp TEGRA234_CLK_MGBE0_RX_INPUT>,
+ <&bpmp TEGRA234_CLK_MGBE0_TX>,
+ <&bpmp TEGRA234_CLK_MGBE0_EEE_PCS>,
+ <&bpmp TEGRA234_CLK_MGBE0_RX_PCS_INPUT>,
+ <&bpmp TEGRA234_CLK_MGBE0_RX_PCS_M>,
+ <&bpmp TEGRA234_CLK_MGBE0_RX_PCS>,
+ <&bpmp TEGRA234_CLK_MGBE0_TX_PCS>;
+ clock-names = "mgbe", "mac", "mac-divider", "ptp-ref", "rx-input-m",
+ "rx-input", "tx", "eee-pcs", "rx-pcs-input", "rx-pcs-m",
+ "rx-pcs", "tx-pcs";
+ resets = <&bpmp TEGRA234_RESET_MGBE0_MAC>,
+ <&bpmp TEGRA234_RESET_MGBE0_PCS>;
+ reset-names = "mac", "pcs";
+ interconnects = <&mc TEGRA234_MEMORY_CLIENT_MGBEARD &emc>,
+ <&mc TEGRA234_MEMORY_CLIENT_MGBEAWR &emc>;
+ interconnect-names = "dma-mem", "write";
+ iommus = <&smmu_niso0 TEGRA234_SID_MGBE>;
+ power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEA>;
+
+ phy-handle = <&mgbe0_phy>;
+ phy-mode = "usxgmii";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mgbe0_phy: phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ reg = <0x0>;
+
+ #phy-cells = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml b/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
index 011363166789..4c155441acbf 100644
--- a/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
+++ b/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/nxp,dwmac-imx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: NXP i.MX8 DWMAC glue layer Device Tree Bindings
+title: NXP i.MX8 DWMAC glue layer
maintainers:
- Joakim Zhang <qiangqing.zhang@nxp.com>
diff --git a/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml b/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml
index d51da24f3505..ab8867e6939b 100644
--- a/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml
+++ b/Documentation/devicetree/bindings/net/nxp,tja11xx.yaml
@@ -31,6 +31,22 @@ patternProperties:
description:
The ID number for the child PHY. Should be +1 of parent PHY.
+ nxp,rmii-refclk-in:
+ type: boolean
+ description: |
+ The REF_CLK is provided for both transmitted and received data
+ in RMII mode. This clock signal is provided by the PHY and is
+ typically derived from an external 25MHz crystal. Alternatively,
+ a 50MHz clock signal generated by an external oscillator can be
+ connected to pin REF_CLK. A third option is to connect a 25MHz
+ clock to pin CLK_IN_OUT. So, the REF_CLK should be configured
+ as input or output according to the actual circuit connection.
+ If present, indicates that the REF_CLK will be configured as
+ interface reference clock input when RMII mode enabled.
+ If not present, the REF_CLK will be configured as interface
+ reference clock output when RMII mode enabled.
+ Only supported on TJA1100 and TJA1101.
+
required:
- reg
@@ -44,6 +60,7 @@ examples:
tja1101_phy0: ethernet-phy@4 {
reg = <0x4>;
+ nxp,rmii-refclk-in;
};
};
- |
diff --git a/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
new file mode 100644
index 000000000000..2d33bbab7163
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/pcs/renesas,rzn1-miic.yaml
@@ -0,0 +1,171 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/pcs/renesas,rzn1-miic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/N1 MII converter
+
+maintainers:
+ - Clément Léger <clement.leger@bootlin.com>
+
+description: |
+ This MII converter is present on the Renesas RZ/N1 SoC family. It is
+ responsible to do MII passthrough or convert it to RMII/RGMII.
+
+properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ compatible:
+ items:
+ - enum:
+ - renesas,r9a06g032-miic
+ - const: renesas,rzn1-miic
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: MII reference clock
+ - description: RGMII reference clock
+ - description: RMII reference clock
+ - description: AHB clock used for the MII converter register interface
+
+ clock-names:
+ items:
+ - const: mii_ref
+ - const: rgmii_ref
+ - const: rmii_ref
+ - const: hclk
+
+ renesas,miic-switch-portin:
+ description: MII Switch PORTIN configuration. This value should use one of
+ the values defined in dt-bindings/net/pcs-rzn1-miic.h.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [1, 2]
+
+ power-domains:
+ maxItems: 1
+
+patternProperties:
+ "^mii-conv@[0-5]$":
+ type: object
+ description: MII converter port
+
+ properties:
+ reg:
+ description: MII Converter port number.
+ enum: [1, 2, 3, 4, 5]
+
+ renesas,miic-input:
+ description: Converter input port configuration. This value should use
+ one of the values defined in dt-bindings/net/pcs-rzn1-miic.h.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ required:
+ - reg
+ - renesas,miic-input
+
+ additionalProperties: false
+
+ allOf:
+ - if:
+ properties:
+ reg:
+ const: 1
+ then:
+ properties:
+ renesas,miic-input:
+ const: 0
+ - if:
+ properties:
+ reg:
+ const: 2
+ then:
+ properties:
+ renesas,miic-input:
+ enum: [1, 11]
+ - if:
+ properties:
+ reg:
+ const: 3
+ then:
+ properties:
+ renesas,miic-input:
+ enum: [7, 10]
+ - if:
+ properties:
+ reg:
+ const: 4
+ then:
+ properties:
+ renesas,miic-input:
+ enum: [4, 6, 9, 13]
+ - if:
+ properties:
+ reg:
+ const: 5
+ then:
+ properties:
+ renesas,miic-input:
+ enum: [3, 5, 8, 12]
+
+required:
+ - '#address-cells'
+ - '#size-cells'
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/net/pcs-rzn1-miic.h>
+ #include <dt-bindings/clock/r9a06g032-sysctrl.h>
+
+ eth-miic@44030000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,r9a06g032-miic", "renesas,rzn1-miic";
+ reg = <0x44030000 0x10000>;
+ clocks = <&sysctrl R9A06G032_CLK_MII_REF>,
+ <&sysctrl R9A06G032_CLK_RGMII_REF>,
+ <&sysctrl R9A06G032_CLK_RMII_REF>,
+ <&sysctrl R9A06G032_HCLK_SWITCH_RG>;
+ clock-names = "mii_ref", "rgmii_ref", "rmii_ref", "hclk";
+ renesas,miic-switch-portin = <MIIC_GMAC2_PORT>;
+ power-domains = <&sysctrl>;
+
+ mii_conv1: mii-conv@1 {
+ renesas,miic-input = <MIIC_GMAC1_PORT>;
+ reg = <1>;
+ };
+
+ mii_conv2: mii-conv@2 {
+ renesas,miic-input = <MIIC_SWITCH_PORTD>;
+ reg = <2>;
+ };
+
+ mii_conv3: mii-conv@3 {
+ renesas,miic-input = <MIIC_SWITCH_PORTC>;
+ reg = <3>;
+ };
+
+ mii_conv4: mii-conv@4 {
+ renesas,miic-input = <MIIC_SWITCH_PORTB>;
+ reg = <4>;
+ };
+
+ mii_conv5: mii-conv@5 {
+ renesas,miic-input = <MIIC_SWITCH_PORTA>;
+ reg = <5>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/pse-pd/podl-pse-regulator.yaml b/Documentation/devicetree/bindings/net/pse-pd/podl-pse-regulator.yaml
new file mode 100644
index 000000000000..c6b1c188abf7
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/pse-pd/podl-pse-regulator.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/pse-pd/podl-pse-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Regulator based Power Sourcing Equipment
+
+maintainers:
+ - Oleksij Rempel <o.rempel@pengutronix.de>
+
+description: Regulator based PoDL PSE controller. The device must be referenced
+ by the PHY node to control power injection to the Ethernet cable.
+
+allOf:
+ - $ref: "pse-controller.yaml#"
+
+properties:
+ compatible:
+ const: podl-pse-regulator
+
+ '#pse-cells':
+ const: 0
+
+ pse-supply:
+ description: Power supply for the PSE controller
+
+additionalProperties: false
+
+required:
+ - compatible
+ - pse-supply
+
+examples:
+ - |
+ ethernet-pse {
+ compatible = "podl-pse-regulator";
+ pse-supply = <&reg_t1l1>;
+ #pse-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml b/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml
new file mode 100644
index 000000000000..b110abb42597
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/pse-pd/pse-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Power Sourcing Equipment (PSE).
+
+description: Binding for the Power Sourcing Equipment (PSE) as defined in the
+ IEEE 802.3 specification. It is designed for hardware which is delivering
+ power over twisted pair/ethernet cable. The ethernet-pse nodes should be
+ used to describe PSE controller and referenced by the ethernet-phy node.
+
+maintainers:
+ - Oleksij Rempel <o.rempel@pengutronix.de>
+
+properties:
+ $nodename:
+ pattern: "^ethernet-pse(@.*)?$"
+
+ "#pse-cells":
+ description:
+ Used to uniquely identify a PSE instance within an IC. Will be
+ 0 on PSE nodes with only a single output and at least 1 on nodes
+ controlling several outputs.
+ enum: [0, 1]
+
+required:
+ - "#pse-cells"
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/net/qca,ar803x.yaml b/Documentation/devicetree/bindings/net/qca,ar803x.yaml
index b3d4013b7ca6..161d28919316 100644
--- a/Documentation/devicetree/bindings/net/qca,ar803x.yaml
+++ b/Documentation/devicetree/bindings/net/qca,ar803x.yaml
@@ -40,6 +40,14 @@ properties:
Only supported on the AR8031.
type: boolean
+ qca,disable-hibernation-mode:
+ description: |
+ Disable Atheros AR803X PHYs hibernation mode. If present, indicates
+ that the hardware of PHY will not enter power saving mode when the
+ cable is disconnected. And the RX_CLK always keeps outputting a
+ valid clock.
+ type: boolean
+
qca,smarteee-tw-us-100m:
description: EEE Tw parameter for 100M links.
$ref: /schemas/types.yaml#/definitions/uint32
diff --git a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
index 2af304341772..ad8b2b41c140 100644
--- a/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/qcom,ipq4019-mdio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Qualcomm IPQ40xx MDIO Controller Device Tree Bindings
+title: Qualcomm IPQ40xx MDIO Controller
maintainers:
- Robert Marko <robert.marko@sartura.hr>
diff --git a/Documentation/devicetree/bindings/net/qcom-emac.txt b/Documentation/devicetree/bindings/net/qcom-emac.txt
index 346e6c7f47b7..7ae8aa148634 100644
--- a/Documentation/devicetree/bindings/net/qcom-emac.txt
+++ b/Documentation/devicetree/bindings/net/qcom-emac.txt
@@ -14,7 +14,7 @@ MAC node:
- mac-address : The 6-byte MAC address. If present, it is the default
MAC address.
- internal-phy : phandle to the internal PHY node
-- phy-handle : phandle the the external PHY node
+- phy-handle : phandle to the external PHY node
Internal PHY node:
- compatible : Should be "qcom,fsm9900-emac-sgmii" or "qcom,qdf2432-emac-sgmii".
diff --git a/Documentation/devicetree/bindings/net/ralink,rt2880-net.txt b/Documentation/devicetree/bindings/net/ralink,rt2880-net.txt
deleted file mode 100644
index 9fe1a0a22e44..000000000000
--- a/Documentation/devicetree/bindings/net/ralink,rt2880-net.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-Ralink Frame Engine Ethernet controller
-=======================================
-
-The Ralink frame engine ethernet controller can be found on Ralink and
-Mediatek SoCs (RT288x, RT3x5x, RT366x, RT388x, rt5350, mt7620, mt7621, mt76x8).
-
-Depending on the SoC, there is a number of ports connected to the CPU port
-directly and/or via a (gigabit-)switch.
-
-* Ethernet controller node
-
-Required properties:
-- compatible: Should be one of "ralink,rt2880-eth", "ralink,rt3050-eth",
- "ralink,rt3050-eth", "ralink,rt3883-eth", "ralink,rt5350-eth",
- "mediatek,mt7620-eth", "mediatek,mt7621-eth"
-- reg: Address and length of the register set for the device
-- interrupts: Should contain the frame engines interrupt
-- resets: Should contain the frame engines resets
-- reset-names: Should contain the reset names "fe". If a switch is present
- "esw" is also required.
-
-
-* Ethernet port node
-
-Required properties:
-- compatible: Should be "ralink,eth-port"
-- reg: The number of the physical port
-- phy-handle: reference to the node describing the phy
-
-Example:
-
-mdio-bus {
- ...
- phy0: ethernet-phy@0 {
- phy-mode = "mii";
- reg = <0>;
- };
-};
-
-ethernet@400000 {
- compatible = "ralink,rt2880-eth";
- reg = <0x00400000 10000>;
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- resets = <&rstctrl 18>;
- reset-names = "fe";
-
- interrupt-parent = <&cpuintc>;
- interrupts = <5>;
-
- port@0 {
- compatible = "ralink,eth-port";
- reg = <0>;
- phy-handle = <&phy0>;
- };
-
-};
diff --git a/Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt b/Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt
deleted file mode 100644
index 87e315856efa..000000000000
--- a/Documentation/devicetree/bindings/net/ralink,rt3050-esw.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Ralink Fast Ethernet Embedded Switch
-====================================
-
-The ralink fast ethernet embedded switch can be found on Ralink and Mediatek
-SoCs (RT3x5x, RT5350, MT76x8).
-
-Required properties:
-- compatible: Should be "ralink,rt3050-esw"
-- reg: Address and length of the register set for the device
-- interrupts: Should contain the embedded switches interrupt
-- resets: Should contain the embedded switches resets
-- reset-names: Should contain the reset names "esw"
-
-Optional properties:
-- ralink,portmap: can be used to choose if the default switch setup is
- llllw or wllll
-- ralink,led_polarity: override the active high/low settings of the leds
-
-Example:
-
-esw@10110000 {
- compatible = "ralink,rt3050-esw";
- reg = <0x10110000 8000>;
-
- resets = <&rstctrl 23>;
- reset-names = "esw";
-
- interrupt-parent = <&intc>;
- interrupts = <17>;
-};
diff --git a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
index 157d606bf9cb..e329ef06e10f 100644
--- a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
+++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/realtek-bluetooth.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: RTL8723BS/RTL8723CS/RTL8822CS Bluetooth Device Tree Bindings
+title: RTL8723BS/RTL8723CS/RTL8822CS Bluetooth
maintainers:
- Vasily Khoruzhick <anarsoul@gmail.com>
diff --git a/Documentation/devicetree/bindings/net/renesas,etheravb.yaml b/Documentation/devicetree/bindings/net/renesas,etheravb.yaml
index acf347f3cdbe..3f41294f5997 100644
--- a/Documentation/devicetree/bindings/net/renesas,etheravb.yaml
+++ b/Documentation/devicetree/bindings/net/renesas,etheravb.yaml
@@ -40,11 +40,16 @@ properties:
- renesas,etheravb-r8a77980 # R-Car V3H
- renesas,etheravb-r8a77990 # R-Car E3
- renesas,etheravb-r8a77995 # R-Car D3
- - renesas,etheravb-r8a779a0 # R-Car V3U
- const: renesas,etheravb-rcar-gen3 # R-Car Gen3 and RZ/G2
- items:
- enum:
+ - renesas,etheravb-r8a779a0 # R-Car V3U
+ - renesas,etheravb-r8a779g0 # R-Car V4H
+ - const: renesas,etheravb-rcar-gen4 # R-Car Gen4
+
+ - items:
+ - enum:
- renesas,etheravb-r9a09g011 # RZ/V2M
- const: renesas,etheravb-rzv2m # RZ/V2M compatible
@@ -207,7 +212,7 @@ allOf:
- renesas,etheravb-r8a77965
- renesas,etheravb-r8a77970
- renesas,etheravb-r8a77980
- - renesas,etheravb-r8a779a0
+ - renesas,etheravb-rcar-gen4
then:
required:
- tx-internal-delay-ps
diff --git a/Documentation/devicetree/bindings/net/rockchip,emac.yaml b/Documentation/devicetree/bindings/net/rockchip,emac.yaml
new file mode 100644
index 000000000000..a6d4f14df442
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/rockchip,emac.yaml
@@ -0,0 +1,115 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/rockchip,emac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip RK3036/RK3066/RK3188 Ethernet Media Access Controller (EMAC)
+
+maintainers:
+ - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3036-emac
+ - rockchip,rk3066-emac
+ - rockchip,rk3188-emac
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 2
+ items:
+ - description: host clock
+ - description: reference clock
+ - description: mac TX/RX clock
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: hclk
+ - const: macref
+ - const: macclk
+
+ rockchip,grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the syscon GRF used to control speed and mode for the EMAC.
+
+ phy-supply:
+ description:
+ Phandle to a regulator if the PHY needs one.
+
+ mdio:
+ $ref: mdio.yaml#
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - rockchip,grf
+ - phy
+ - phy-mode
+ - mdio
+
+allOf:
+ - $ref: "ethernet-controller.yaml#"
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: rockchip,rk3036-emac
+
+ then:
+ properties:
+ clocks:
+ minItems: 3
+
+ clock-names:
+ minItems: 3
+
+ else:
+ properties:
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ maxItems: 2
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3188-cru-common.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ ethernet@10204000 {
+ compatible = "rockchip,rk3188-emac";
+ reg = <0xc0fc2000 0x3c>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru HCLK_EMAC>, <&cru SCLK_MAC>;
+ clock-names = "hclk", "macref";
+ rockchip,grf = <&grf>;
+ pinctrl-0 = <&emac_xfer>, <&emac_mdio>, <&phy_int>;
+ pinctrl-names = "default";
+ phy = <&phy0>;
+ phy-mode = "rmii";
+ phy-supply = <&vcc_rmii>;
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy0: ethernet-phy@0 {
+ reg = <1>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
index 083623c8d718..42fb72b6909d 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
@@ -25,7 +25,9 @@ select:
- rockchip,rk3368-gmac
- rockchip,rk3399-gmac
- rockchip,rk3568-gmac
+ - rockchip,rk3588-gmac
- rockchip,rv1108-gmac
+ - rockchip,rv1126-gmac
required:
- compatible
@@ -47,9 +49,11 @@ properties:
- rockchip,rk3368-gmac
- rockchip,rk3399-gmac
- rockchip,rv1108-gmac
+ - rockchip,rv1126-gmac
- items:
- enum:
- rockchip,rk3568-gmac
+ - rockchip,rk3588-gmac
- const: snps,dwmac-4.20a
clocks:
@@ -81,6 +85,11 @@ properties:
description: The phandle of the syscon node for the general register file.
$ref: /schemas/types.yaml#/definitions/phandle
+ rockchip,php-grf:
+ description:
+ The phandle of the syscon node for the peripheral general register file.
+ $ref: /schemas/types.yaml#/definitions/phandle
+
tx_delay:
description: Delay value for TXD timing. Range value is 0~0x7F, 0x30 as default.
$ref: /schemas/types.yaml#/definitions/uint32
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.txt b/Documentation/devicetree/bindings/net/sff,sfp.txt
deleted file mode 100644
index 832139919f20..000000000000
--- a/Documentation/devicetree/bindings/net/sff,sfp.txt
+++ /dev/null
@@ -1,85 +0,0 @@
-Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
-Transceiver
-
-Required properties:
-
-- compatible : must be one of
- "sff,sfp" for SFP modules
- "sff,sff" for soldered down SFF modules
-
-- i2c-bus : phandle of an I2C bus controller for the SFP two wire serial
- interface
-
-Optional Properties:
-
-- mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS)
- module presence input gpio signal, active (module absent) high. Must
- not be present for SFF modules
-
-- los-gpios : GPIO phandle and a specifier of the Receiver Loss of Signal
- Indication input gpio signal, active (signal lost) high
-
-- tx-fault-gpios : GPIO phandle and a specifier of the Module Transmitter
- Fault input gpio signal, active (fault condition) high
-
-- tx-disable-gpios : GPIO phandle and a specifier of the Transmitter Disable
- output gpio signal, active (Tx disable) high
-
-- rate-select0-gpios : GPIO phandle and a specifier of the Rx Signaling Rate
- Select (AKA RS0) output gpio signal, low: low Rx rate, high: high Rx rate
- Must not be present for SFF modules
-
-- rate-select1-gpios : GPIO phandle and a specifier of the Tx Signaling Rate
- Select (AKA RS1) output gpio signal (SFP+ only), low: low Tx rate, high:
- high Tx rate. Must not be present for SFF modules
-
-- maximum-power-milliwatt : Maximum module power consumption
- Specifies the maximum power consumption allowable by a module in the
- slot, in milli-Watts. Presently, modules can be up to 1W, 1.5W or 2W.
-
-Example #1: Direct serdes to SFP connection
-
-sfp_eth3: sfp-eth3 {
- compatible = "sff,sfp";
- i2c-bus = <&sfp_1g_i2c>;
- los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
- mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
- maximum-power-milliwatt = <1000>;
- pinctrl-names = "default";
- pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
- tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
- tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
-};
-
-&cps_emac3 {
- phy-names = "comphy";
- phys = <&cps_comphy5 0>;
- sfp = <&sfp_eth3>;
-};
-
-Example #2: Serdes to PHY to SFP connection
-
-sfp_eth0: sfp-eth0 {
- compatible = "sff,sfp";
- i2c-bus = <&sfpp0_i2c>;
- los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
- mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
- pinctrl-names = "default";
- pinctrl-0 = <&cps_sfpp0_pins>;
- tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
- tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
-};
-
-p0_phy: ethernet-phy@0 {
- compatible = "ethernet-phy-ieee802.3-c45";
- pinctrl-names = "default";
- pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
- reg = <0>;
- interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;
- sfp = <&sfp_eth0>;
-};
-
-&cpm_eth0 {
- phy = <&p0_phy>;
- phy-mode = "10gbase-kr";
-};
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.yaml b/Documentation/devicetree/bindings/net/sff,sfp.yaml
new file mode 100644
index 000000000000..06c66ab81c01
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/sff,sfp.yaml
@@ -0,0 +1,142 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/sff,sfp.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP)
+ Transceiver
+
+maintainers:
+ - Russell King <linux@armlinux.org.uk>
+
+properties:
+ compatible:
+ enum:
+ - sff,sfp # for SFP modules
+ - sff,sff # for soldered down SFF modules
+
+ i2c-bus:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle of an I2C bus controller for the SFP two wire serial
+
+ maximum-power-milliwatt:
+ maxItems: 1
+ description:
+ Maximum module power consumption Specifies the maximum power consumption
+ allowable by a module in the slot, in milli-Watts. Presently, modules can
+ be up to 1W, 1.5W or 2W.
+
+ "mod-def0-gpios":
+ maxItems: 1
+ description:
+ GPIO phandle and a specifier of the MOD-DEF0 (AKA Mod_ABS) module
+ presence input gpio signal, active (module absent) high. Must not be
+ present for SFF modules
+
+ "los-gpios":
+ maxItems: 1
+ description:
+ GPIO phandle and a specifier of the Receiver Loss of Signal Indication
+ input gpio signal, active (signal lost) high
+
+ "tx-fault-gpios":
+ maxItems: 1
+ description:
+ GPIO phandle and a specifier of the Module Transmitter Fault input gpio
+ signal, active (fault condition) high
+
+ "tx-disable-gpios":
+ maxItems: 1
+ description:
+ GPIO phandle and a specifier of the Transmitter Disable output gpio
+ signal, active (Tx disable) high
+
+ "rate-select0-gpios":
+ maxItems: 1
+ description:
+ GPIO phandle and a specifier of the Rx Signaling Rate Select (AKA RS0)
+ output gpio signal, low - low Rx rate, high - high Rx rate Must not be
+ present for SFF modules
+
+ "rate-select1-gpios":
+ maxItems: 1
+ description:
+ GPIO phandle and a specifier of the Tx Signaling Rate Select (AKA RS1)
+ output gpio signal (SFP+ only), low - low Tx rate, high - high Tx rate. Must
+ not be present for SFF modules
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: sff,sff
+ then:
+ properties:
+ mod-def0-gpios: false
+ rate-select0-gpios: false
+ rate-select1-gpios: false
+
+required:
+ - compatible
+ - i2c-bus
+
+additionalProperties: false
+
+examples:
+ - | # Direct serdes to SFP connection
+ #include <dt-bindings/gpio/gpio.h>
+
+ sfp1: sfp {
+ compatible = "sff,sfp";
+ i2c-bus = <&sfp_1g_i2c>;
+ los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpios = <&cpm_gpio2 21 GPIO_ACTIVE_LOW>;
+ maximum-power-milliwatt = <1000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_sfp_1g_pins &cps_sfp_1g_pins>;
+ tx-disable-gpios = <&cps_gpio1 24 GPIO_ACTIVE_HIGH>;
+ tx-fault-gpios = <&cpm_gpio2 19 GPIO_ACTIVE_HIGH>;
+ };
+
+ ethernet {
+ phy-names = "comphy";
+ phys = <&cps_comphy5 0>;
+ sfp = <&sfp1>;
+ };
+
+ - | # Serdes to PHY to SFP connection
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ sfp2: sfp {
+ compatible = "sff,sfp";
+ i2c-bus = <&sfp_i2c>;
+ los-gpios = <&cps_gpio1 28 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpios = <&cps_gpio1 27 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&cps_sfpp0_pins>;
+ tx-disable-gpios = <&cps_gpio1 29 GPIO_ACTIVE_HIGH>;
+ tx-fault-gpios = <&cps_gpio1 26 GPIO_ACTIVE_HIGH>;
+ };
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ phy: ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c45";
+ pinctrl-names = "default";
+ pinctrl-0 = <&cpm_phy0_pins &cps_phy0_pins>;
+ reg = <0>;
+ interrupt = <&cpm_gpio2 18 IRQ_TYPE_EDGE_FALLING>;
+ sfp = <&sfp2>;
+ };
+ };
+
+ ethernet {
+ phy = <&phy>;
+ phy-mode = "10gbase-kr";
+ };
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 36c85eb3dc0d..13b984076af5 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/snps,dwmac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Synopsys DesignWare MAC Device Tree Bindings
+title: Synopsys DesignWare MAC
maintainers:
- Alexandre Torgue <alexandre.torgue@foss.st.com>
@@ -65,6 +65,8 @@ properties:
- ingenic,x2000-mac
- loongson,ls2k-dwmac
- loongson,ls7a-dwmac
+ - renesas,r9a06g032-gmac
+ - renesas,rzn1-gmac
- rockchip,px30-gmac
- rockchip,rk3128-gmac
- rockchip,rk3228-gmac
@@ -72,6 +74,7 @@ properties:
- rockchip,rk3328-gmac
- rockchip,rk3366-gmac
- rockchip,rk3368-gmac
+ - rockchip,rk3588-gmac
- rockchip,rk3399-gmac
- rockchip,rv1108-gmac
- snps,dwmac
@@ -135,6 +138,9 @@ properties:
reset-names:
const: stmmaceth
+ power-domains:
+ maxItems: 1
+
mac-mode:
$ref: ethernet-controller.yaml#/properties/phy-connection-type
description:
@@ -283,6 +289,11 @@ properties:
is supported. For example, this is used in case of SGMII and
MAC2MAC connection.
+ snps,clk-csr:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Frequency division factor for MDC clock.
+
mdio:
$ref: mdio.yaml#
unevaluatedProperties: false
@@ -296,6 +307,60 @@ properties:
required:
- compatible
+ stmmac-axi-config:
+ type: object
+ unevaluatedProperties: false
+ description:
+ AXI BUS Mode parameters.
+
+ properties:
+ snps,lpi_en:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ enable Low Power Interface
+
+ snps,xit_frm:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ unlock on WoL
+
+ snps,wr_osr_lmt:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ max write outstanding req. limit
+
+ snps,rd_osr_lmt:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ max read outstanding req. limit
+
+ snps,kbbe:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ do not cross 1KiB boundary.
+
+ snps,blen:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ this is a vector of supported burst length.
+ minItems: 7
+ maxItems: 7
+
+ snps,fb:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ fixed-burst
+
+ snps,mb:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ mixed-burst
+
+ snps,rb:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ rebuild INCRx Burst
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/net/sunplus,sp7021-emac.yaml b/Documentation/devicetree/bindings/net/sunplus,sp7021-emac.yaml
index 62dffee27c3d..5b130097449b 100644
--- a/Documentation/devicetree/bindings/net/sunplus,sp7021-emac.yaml
+++ b/Documentation/devicetree/bindings/net/sunplus,sp7021-emac.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/net/sunplus,sp7021-emac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Sunplus SP7021 Dual Ethernet MAC Device Tree Bindings
+title: Sunplus SP7021 Dual Ethernet MAC
maintainers:
- Wells Lu <wellslutw@gmail.com>
@@ -32,6 +32,7 @@ properties:
ethernet-ports:
type: object
+ additionalProperties: false
description: Ethernet ports to PHY
properties:
@@ -44,6 +45,7 @@ properties:
patternProperties:
"^port@[0-1]$":
type: object
+ additionalProperties: false
description: Port to PHY
properties:
diff --git a/Documentation/devicetree/bindings/net/ti,cpsw-switch.yaml b/Documentation/devicetree/bindings/net/ti,cpsw-switch.yaml
index 31bf825c6598..e36c7817be69 100644
--- a/Documentation/devicetree/bindings/net/ti,cpsw-switch.yaml
+++ b/Documentation/devicetree/bindings/net/ti,cpsw-switch.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/ti,cpsw-switch.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: TI SoC Ethernet Switch Controller (CPSW) Device Tree Bindings
+title: TI SoC Ethernet Switch Controller (CPSW)
maintainers:
- Grygorii Strashko <grygorii.strashko@ti.com>
@@ -77,6 +77,8 @@ properties:
ethernet-ports:
type: object
+ additionalProperties: false
+
properties:
'#address-cells':
const: 1
@@ -89,6 +91,7 @@ properties:
description: CPSW external ports
$ref: ethernet-controller.yaml#
+ unevaluatedProperties: false
properties:
reg:
@@ -117,6 +120,7 @@ properties:
cpts:
type: object
+ unevaluatedProperties: false
description:
The Common Platform Time Sync (CPTS) module
diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
index 75e8712e903a..f2489a9c852f 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83822.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: TI DP83822 ethernet PHY
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The DP83822 is a low-power, single-port, 10/100 Mbps Ethernet PHY. It
diff --git a/Documentation/devicetree/bindings/net/ti,dp83867.yaml b/Documentation/devicetree/bindings/net/ti,dp83867.yaml
index 047d757e8d82..b8c0e4b5b494 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83867.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83867.yaml
@@ -11,7 +11,7 @@ allOf:
- $ref: "ethernet-controller.yaml#"
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The DP83867 device is a robust, low power, fully featured Physical Layer
@@ -31,6 +31,16 @@ properties:
reg:
maxItems: 1
+ nvmem-cells:
+ maxItems: 1
+ description:
+ Nvmem data cell containing the value to write to the
+ IO_IMPEDANCE_CTRL field of the IO_MUX_CFG register.
+
+ nvmem-cell-names:
+ items:
+ - const: io_impedance_ctrl
+
ti,min-output-impedance:
type: boolean
description: |
@@ -42,9 +52,11 @@ properties:
description: |
MAC Interface Impedance control to set the programmable output impedance
to a maximum value (70 ohms).
- Note: ti,min-output-impedance and ti,max-output-impedance are mutually
- exclusive. When both properties are present ti,max-output-impedance
- takes precedence.
+ Note: Specifying an io_impedance_ctrl nvmem cell or one of the
+ ti,min-output-impedance, ti,max-output-impedance properties
+ are mutually exclusive. If more than one is present, an nvmem
+ cell takes precedence over ti,max-output-impedance, which in
+ turn takes precedence over ti,min-output-impedance.
tx-fifo-depth:
$ref: /schemas/types.yaml#/definitions/uint32
diff --git a/Documentation/devicetree/bindings/net/ti,dp83869.yaml b/Documentation/devicetree/bindings/net/ti,dp83869.yaml
index 1b780dce61ab..b04ff0014a59 100644
--- a/Documentation/devicetree/bindings/net/ti,dp83869.yaml
+++ b/Documentation/devicetree/bindings/net/ti,dp83869.yaml
@@ -11,7 +11,7 @@ allOf:
- $ref: "ethernet-phy.yaml#"
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The DP83869HM device is a robust, fully-featured Gigabit (PHY) transceiver
diff --git a/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml b/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml
index b8281d8be940..821974815dec 100644
--- a/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml
+++ b/Documentation/devicetree/bindings/net/ti,k3-am654-cpsw-nuss.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/ti,k3-am654-cpsw-nuss.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: The TI AM654x/J721E/AM642x SoC Gigabit Ethernet MAC (Media Access Controller) Device Tree Bindings
+title: The TI AM654x/J721E/AM642x SoC Gigabit Ethernet MAC (Media Access Controller)
maintainers:
- Grygorii Strashko <grygorii.strashko@ti.com>
@@ -55,6 +55,7 @@ properties:
compatible:
enum:
- ti,am654-cpsw-nuss
+ - ti,j7200-cpswxg-nuss
- ti,j721e-cpsw-nuss
- ti,am642-cpsw-nuss
@@ -110,16 +111,17 @@ properties:
const: 0
patternProperties:
- port@[1-2]:
+ "^port@[1-4]$":
type: object
description: CPSWxG NUSS external ports
$ref: ethernet-controller.yaml#
+ unevaluatedProperties: false
properties:
reg:
minimum: 1
- maximum: 2
+ maximum: 4
description: CPSW port number
phys:
@@ -178,6 +180,19 @@ required:
- '#address-cells'
- '#size-cells'
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ const: ti,j7200-cpswxg-nuss
+ then:
+ properties:
+ ethernet-ports:
+ patternProperties:
+ "^port@[3-4]$": false
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml b/Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml
index b783ad0d1f53..6230f576134b 100644
--- a/Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml
+++ b/Documentation/devicetree/bindings/net/ti,k3-am654-cpts.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/ti,k3-am654-cpts.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: The TI AM654x/J721E Common Platform Time Sync (CPTS) module Device Tree Bindings
+title: The TI AM654x/J721E Common Platform Time Sync (CPTS) module
maintainers:
- Grygorii Strashko <grygorii.strashko@ti.com>
@@ -95,6 +95,7 @@ properties:
refclk-mux:
type: object
+ additionalProperties: false
description: CPTS reference clock multiplexer clock
properties:
'#clock-cells':
diff --git a/Documentation/devicetree/bindings/net/vertexcom-mse102x.yaml b/Documentation/devicetree/bindings/net/vertexcom-mse102x.yaml
index 8156a9aeb589..6a71f694cb55 100644
--- a/Documentation/devicetree/bindings/net/vertexcom-mse102x.yaml
+++ b/Documentation/devicetree/bindings/net/vertexcom-mse102x.yaml
@@ -4,10 +4,10 @@
$id: "http://devicetree.org/schemas/net/vertexcom-mse102x.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: The Vertexcom MSE102x (SPI) Device Tree Bindings
+title: The Vertexcom MSE102x (SPI)
maintainers:
- - Stefan Wahren <stefan.wahren@in-tech.com>
+ - Stefan Wahren <stefan.wahren@chargebyte.com>
description:
Vertexcom's MSE102x are a family of HomePlug GreenPHY chips.
diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml b/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml
index c11f23b20c4c..fec1cc9b9a08 100644
--- a/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm4329-fmac.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/net/wireless/brcm,bcm4329-fmac.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom BCM4329 family fullmac wireless SDIO devices
+title: Broadcom BCM4329 family fullmac wireless SDIO/PCIE devices
maintainers:
- Arend van Spriel <arend@broadcom.com>
@@ -41,11 +41,17 @@ properties:
- cypress,cyw4373-fmac
- cypress,cyw43012-fmac
- const: brcm,bcm4329-fmac
- - const: brcm,bcm4329-fmac
+ - enum:
+ - brcm,bcm4329-fmac
+ - pci14e4,43dc # BCM4355
+ - pci14e4,4464 # BCM4364
+ - pci14e4,4488 # BCM4377
+ - pci14e4,4425 # BCM4378
+ - pci14e4,4433 # BCM4387
reg:
- description: SDIO function number for the device, for most cases
- this will be 1.
+ description: SDIO function number for the device (for most cases
+ this will be 1) or PCI device identifier.
interrupts:
maxItems: 1
@@ -75,6 +81,41 @@ properties:
items:
pattern: '^[A-Z][A-Z]-[A-Z][0-9A-Z]-[0-9]+$'
+ brcm,ccode-map-trivial:
+ description: |
+ Use a trivial mapping of ISO3166 country codes to brcmfmac firmware
+ country code and revision: cc -> { cc, 0 }. In other words, assume that
+ the CLM blob firmware uses ISO3166 country codes as well, and that all
+ revisions are zero. This property is mutually exclusive with
+ brcm,ccode-map. If both properties are specified, then brcm,ccode-map
+ takes precedence.
+ type: boolean
+
+ brcm,cal-blob:
+ $ref: /schemas/types.yaml#/definitions/uint8-array
+ description: A per-device calibration blob for the Wi-Fi radio. This
+ should be filled in by the bootloader from platform configuration
+ data, if necessary, and will be uploaded to the device if present.
+
+ brcm,board-type:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: Overrides the board type, which is normally the compatible of
+ the root node. This can be used to decouple the overall system board or
+ device name from the board type for WiFi purposes, which is used to
+ construct firmware and NVRAM configuration filenames, allowing for
+ multiple devices that share the same module or characteristics for the
+ WiFi subsystem to share the same firmware/NVRAM files. On Apple platforms,
+ this should be the Apple module-instance codename prefixed by "apple,",
+ e.g. "apple,honshu".
+
+ apple,antenna-sku:
+ $ref: /schemas/types.yaml#/definitions/string
+ description: Antenna SKU used to identify a specific antenna configuration
+ on Apple platforms. This is use to build firmware filenames, to allow
+ platforms with different antenna configs to have different firmware and/or
+ NVRAM. This would normally be filled in by the bootloader from platform
+ configuration data.
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
index 5a12dc32288a..70e328589cfb 100644
--- a/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/mediatek,mt76.yaml
@@ -54,6 +54,16 @@ properties:
reset-names:
const: consys
+ clocks:
+ maxItems: 2
+ description:
+ Specify the consys clocks for mt7986.
+
+ clock-names:
+ items:
+ - const: mcu
+ - const: ap2conn
+
mediatek,infracfg:
$ref: /schemas/types.yaml#/definitions/phandle
description:
@@ -269,5 +279,8 @@ examples:
<0x10003000 0x1000>,
<0x11d10000 0x1000>;
interrupts = <GIC_SPI 213 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&topckgen 50>,
+ <&topckgen 62>;
+ clock-names = "mcu", "ap2conn";
memory-region = <&wmcpu_emi>;
};
diff --git a/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml b/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
index 60de78f1bc7b..b3405f284580 100644
--- a/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
@@ -20,8 +20,6 @@ properties:
reg: true
- spi-max-frequency: true
-
interrupts:
maxItems: 1
@@ -51,7 +49,10 @@ required:
- compatible
- interrupts
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
index a677b056f112..f7cf135aa37f 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath11k.yaml
@@ -66,6 +66,18 @@ properties:
required:
- iommus
+ qcom,smem-states:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: State bits used by the AP to signal the WLAN Q6.
+ items:
+ - description: Signal bits used to enable/disable low power mode
+ on WCN6750 in the case of WoW (Wake on Wireless).
+
+ qcom,smem-state-names:
+ description: The names of the state bits used for SMP2P output.
+ items:
+ - const: wlan-smp2p-out
+
required:
- compatible
- reg
@@ -448,6 +460,8 @@ examples:
<GIC_SPI 799 IRQ_TYPE_EDGE_RISING>;
qcom,rproc = <&remoteproc_wpss>;
memory-region = <&wlan_fw_mem>, <&wlan_ce_mem>;
+ qcom,smem-states = <&wlan_smp2p_out 0>;
+ qcom,smem-state-names = "wlan-smp2p-out";
wifi-firmware {
iommus = <&apps_smmu 0x1c02 0x1>;
};
diff --git a/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml b/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml
index 76199a67d628..b35d2f3ad1ad 100644
--- a/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml
@@ -29,12 +29,6 @@ description: >
Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml for more
information.
- For SPI:
-
- In add of the properties below, please consult
- Documentation/devicetree/bindings/spi/spi-controller.yaml for optional SPI
- related properties.
-
properties:
compatible:
items:
@@ -52,8 +46,6 @@ properties:
bindings.
maxItems: 1
- spi-max-frequency: true
-
interrupts:
description: The interrupt line. Should be IRQ_TYPE_EDGE_RISING. When SPI is
used, this property is required. When SDIO is used, the "in-band"
@@ -84,12 +76,15 @@ properties:
mac-address: true
-additionalProperties: false
-
required:
- compatible
- reg
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
#include <dt-bindings/gpio/gpio.h>
diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wlcore.yaml b/Documentation/devicetree/bindings/net/wireless/ti,wlcore.yaml
index d68bb2ec1f7e..e31456730e9f 100644
--- a/Documentation/devicetree/bindings/net/wireless/ti,wlcore.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/ti,wlcore.yaml
@@ -36,8 +36,6 @@ properties:
This is required when connected via SPI, and optional when connected via
SDIO.
- spi-max-frequency: true
-
interrupts:
minItems: 1
maxItems: 2
@@ -69,20 +67,22 @@ required:
- compatible
- interrupts
-if:
- properties:
- compatible:
- contains:
- enum:
- - ti,wl1271
- - ti,wl1273
- - ti,wl1281
- - ti,wl1283
-then:
- required:
- - ref-clock-frequency
-
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,wl1271
+ - ti,wl1273
+ - ti,wl1281
+ - ti,wl1283
+ then:
+ required:
+ - ref-clock-frequency
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/net/xlnx,emaclite.yaml b/Documentation/devicetree/bindings/net/xlnx,emaclite.yaml
new file mode 100644
index 000000000000..92d8ade988f6
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/xlnx,emaclite.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/xlnx,emaclite.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Emaclite Ethernet controller
+
+maintainers:
+ - Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
+ - Harini Katakam <harini.katakam@amd.com>
+
+allOf:
+ - $ref: ethernet-controller.yaml#
+
+properties:
+ compatible:
+ enum:
+ - xlnx,opb-ethernetlite-1.01.a
+ - xlnx,opb-ethernetlite-1.01.b
+ - xlnx,xps-ethernetlite-1.00.a
+ - xlnx,xps-ethernetlite-2.00.a
+ - xlnx,xps-ethernetlite-2.01.a
+ - xlnx,xps-ethernetlite-3.00.a
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ phy-handle: true
+
+ local-mac-address: true
+
+ xlnx,tx-ping-pong:
+ type: boolean
+ description: hardware supports tx ping pong buffer.
+
+ xlnx,rx-ping-pong:
+ type: boolean
+ description: hardware supports rx ping pong buffer.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - phy-handle
+
+additionalProperties: false
+
+examples:
+ - |
+ axi_ethernetlite_1: ethernet@40e00000 {
+ compatible = "xlnx,xps-ethernetlite-3.00.a";
+ reg = <0x40e00000 0x10000>;
+ interrupt-parent = <&axi_intc_1>;
+ interrupts = <1>;
+ local-mac-address = [00 00 00 00 00 00];
+ phy-handle = <&phy0>;
+ xlnx,rx-ping-pong;
+ xlnx,tx-ping-pong;
+ };
diff --git a/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml b/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml
index e558587ff885..14c170c6a86e 100644
--- a/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml
+++ b/Documentation/devicetree/bindings/nvmem/allwinner,sun4i-a10-sid.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/allwinner,sun4i-a10-sid.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Security ID Device Tree Bindings
+title: Allwinner A10 Security ID
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/nvmem/fsl,scu-ocotp.yaml b/Documentation/devicetree/bindings/nvmem/fsl,scu-ocotp.yaml
new file mode 100644
index 000000000000..682688299b26
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/fsl,scu-ocotp.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/fsl,scu-ocotp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - OCOTP bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+ - $ref: nvmem.yaml#
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-scu-ocotp
+ - fsl,imx8qxp-scu-ocotp
+
+patternProperties:
+ '^mac@[0-9a-f]*$':
+ type: object
+ description:
+ MAC address.
+
+ properties:
+ reg:
+ description:
+ Byte offset within OCOTP where the MAC address is stored
+ maxItems: 1
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ ocotp {
+ compatible = "fsl,imx8qxp-scu-ocotp";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ fec_mac0: mac@2c4 {
+ reg = <0x2c4 6>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/nvmem/imx-iim.yaml b/Documentation/devicetree/bindings/nvmem/imx-iim.yaml
index 9cc43e7a4b38..7aac1995cfaf 100644
--- a/Documentation/devicetree/bindings/nvmem/imx-iim.yaml
+++ b/Documentation/devicetree/bindings/nvmem/imx-iim.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/imx-iim.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale i.MX IC Identification Module (IIM) device tree bindings
+title: Freescale i.MX IC Identification Module (IIM)
maintainers:
- Anson Huang <Anson.Huang@nxp.com>
diff --git a/Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml b/Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml
index 8a43dc1283fe..d0a239d7e199 100644
--- a/Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml
+++ b/Documentation/devicetree/bindings/nvmem/imx-ocotp.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/imx-ocotp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale i.MX6 On-Chip OTP Controller (OCOTP) device tree bindings
+title: Freescale i.MX6 On-Chip OTP Controller (OCOTP)
maintainers:
- Anson Huang <Anson.Huang@nxp.com>
diff --git a/Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml b/Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml
new file mode 100644
index 000000000000..75e0a516e59a
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/mediatek,efuse.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/mediatek,efuse.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek efuse
+
+description: |
+ MediaTek's efuse is used for storing calibration data, it can be accessed
+ on ARM devices usiong I/O mapped memory.
+
+maintainers:
+ - Andrew-CT Chen <andrew-ct.chen@mediatek.com>
+ - Lala Lin <lala.lin@mediatek.com>
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ $nodename:
+ pattern: "^efuse@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mediatek,mt7622-efuse
+ - mediatek,mt7623-efuse
+ - mediatek,mt8173-efuse
+ - mediatek,mt8183-efuse
+ - mediatek,mt8186-efuse
+ - mediatek,mt8188-efuse
+ - mediatek,mt8192-efuse
+ - mediatek,mt8195-efuse
+ - mediatek,mt8516-efuse
+ - const: mediatek,efuse
+ - const: mediatek,mt8173-efuse
+ deprecated: true
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ efuse@11c10000 {
+ compatible = "mediatek,mt8195-efuse", "mediatek,efuse";
+ reg = <0x11c10000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ u3_tx_imp_p0: usb3-tx-imp@184,1 {
+ reg = <0x184 0x1>;
+ bits = <0 5>;
+ };
+ u3_rx_imp_p0: usb3-rx-imp@184,2 {
+ reg = <0x184 0x2>;
+ bits = <5 5>;
+ };
+ u3_intr_p0: usb3-intr@185 {
+ reg = <0x185 0x1>;
+ bits = <2 6>;
+ };
+ comb_tx_imp_p1: usb3-tx-imp@186,1 {
+ reg = <0x186 0x1>;
+ bits = <0 5>;
+ };
+ comb_rx_imp_p1: usb3-rx-imp@186,2 {
+ reg = <0x186 0x2>;
+ bits = <5 5>;
+ };
+ comb_intr_p1: usb3-intr@187 {
+ reg = <0x187 0x1>;
+ bits = <2 6>;
+ };
+ u2_intr_p0: usb2-intr-p0@188,1 {
+ reg = <0x188 0x1>;
+ bits = <0 5>;
+ };
+ u2_intr_p1: usb2-intr-p1@188,2 {
+ reg = <0x188 0x2>;
+ bits = <5 5>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/nvmem/microchip,lan9662-otpc.yaml b/Documentation/devicetree/bindings/nvmem/microchip,lan9662-otpc.yaml
new file mode 100644
index 000000000000..f97c6beb4766
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/microchip,lan9662-otpc.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/microchip,lan9662-otpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN9662 OTP Controller (OTPC)
+
+maintainers:
+ - Horatiu Vultur <horatiu.vultur@microchip.com>
+
+description: |
+ OTP controller drives a NVMEM memory where system specific data
+ (e.g. hardware configuration settings, chip identifiers) or
+ user specific data could be stored.
+
+allOf:
+ - $ref: nvmem.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: microchip,lan9668-otpc
+ - const: microchip,lan9662-otpc
+ - enum:
+ - microchip,lan9662-otpc
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ otpc: otp@e0021000 {
+ compatible = "microchip,lan9662-otpc";
+ reg = <0xe0021000 0x300>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/nvmem/microchip,sama7g5-otpc.yaml b/Documentation/devicetree/bindings/nvmem/microchip,sama7g5-otpc.yaml
new file mode 100644
index 000000000000..c3c96fd0baac
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/microchip,sama7g5-otpc.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/microchip,sama7g5-otpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip SAMA7G5 OTP Controller (OTPC)
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description: |
+ OTP controller drives a NVMEM memory where system specific data
+ (e.g. calibration data for analog cells, hardware configuration
+ settings, chip identifiers) or user specific data could be stored.
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ compatible:
+ items:
+ - const: microchip,sama7g5-otpc
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/nvmem/microchip,sama7g5-otpc.h>
+
+ otpc: efuse@e8c00000 {
+ compatible = "microchip,sama7g5-otpc", "syscon";
+ reg = <0xe8c00000 0xec>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ temperature_calib: calib@1 {
+ reg = <OTP_PKT(1) 76>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt b/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
deleted file mode 100644
index 39d529599444..000000000000
--- a/Documentation/devicetree/bindings/nvmem/mtk-efuse.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-= Mediatek MTK-EFUSE device tree bindings =
-
-This binding is intended to represent MTK-EFUSE which is found in most Mediatek SOCs.
-
-Required properties:
-- compatible: should be
- "mediatek,mt7622-efuse", "mediatek,efuse": for MT7622
- "mediatek,mt7623-efuse", "mediatek,efuse": for MT7623
- "mediatek,mt8173-efuse" or "mediatek,efuse": for MT8173
- "mediatek,mt8192-efuse", "mediatek,efuse": for MT8192
- "mediatek,mt8195-efuse", "mediatek,efuse": for MT8195
- "mediatek,mt8516-efuse", "mediatek,efuse": for MT8516
-- reg: Should contain registers location and length
-- bits: contain the bits range by offset and size
-
-= Data cells =
-Are child nodes of MTK-EFUSE, bindings of which as described in
-bindings/nvmem/nvmem.txt
-
-Example:
-
- efuse: efuse@10206000 {
- compatible = "mediatek,mt8173-efuse";
- reg = <0 0x10206000 0 0x1000>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- /* Data cells */
- thermal_calibration: calib@528 {
- reg = <0x528 0xc>;
- };
- };
-
-= Data consumers =
-Are device nodes which consume nvmem data cells.
-
-For example:
-
- thermal {
- ...
- nvmem-cells = <&thermal_calibration>;
- nvmem-cell-names = "calibration";
- };
diff --git a/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml b/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
index dbe4ffdd644c..f93bc50c40d7 100644
--- a/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
+++ b/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/nintendo-otp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Nintendo Wii and Wii U OTP Device Tree Bindings
+title: Nintendo Wii and Wii U OTP
description: |
This binding represents the OTP memory as found on a Nintendo Wii or Wii U,
diff --git a/Documentation/devicetree/bindings/nvmem/nvmem-consumer.yaml b/Documentation/devicetree/bindings/nvmem/nvmem-consumer.yaml
index b1da238c8bcb..a26633bf52db 100644
--- a/Documentation/devicetree/bindings/nvmem/nvmem-consumer.yaml
+++ b/Documentation/devicetree/bindings/nvmem/nvmem-consumer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/nvmem-consumer.yaml#
$schema: http://devicetree.org/meta-schemas/base.yaml#
-title: NVMEM (Non Volatile Memory) Consumer Device Tree Bindings
+title: NVMEM (Non Volatile Memory) Consumer
maintainers:
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.yaml b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
index 3bb349c634cb..1eb22dba364c 100644
--- a/Documentation/devicetree/bindings/nvmem/nvmem.yaml
+++ b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/nvmem.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: NVMEM (Non Volatile Memory) Device Tree Bindings
+title: NVMEM (Non Volatile Memory)
maintainers:
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
diff --git a/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml b/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml
index dede8892ee01..2eab2f46cb65 100644
--- a/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml
+++ b/Documentation/devicetree/bindings/nvmem/qcom,qfprom.yaml
@@ -18,6 +18,7 @@ properties:
- enum:
- qcom,apq8064-qfprom
- qcom,apq8084-qfprom
+ - qcom,ipq8064-qfprom
- qcom,msm8974-qfprom
- qcom,msm8916-qfprom
- qcom,msm8996-qfprom
@@ -25,7 +26,9 @@ properties:
- qcom,qcs404-qfprom
- qcom,sc7180-qfprom
- qcom,sc7280-qfprom
+ - qcom,sdm630-qfprom
- qcom,sdm845-qfprom
+ - qcom,sm6115-qfprom
- const: qcom,qfprom
reg:
diff --git a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml
index 104dd508565e..febee8129aa9 100644
--- a/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml
+++ b/Documentation/devicetree/bindings/nvmem/rockchip-efuse.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/nvmem/rockchip-efuse.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip eFuse device tree bindings
+title: Rockchip eFuse
maintainers:
- Heiko Stuebner <heiko@sntech.de>
diff --git a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
index e70b2a60cb9a..e96bca99f2d9 100644
--- a/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
+++ b/Documentation/devicetree/bindings/nvmem/u-boot,env.yaml
@@ -24,6 +24,8 @@ description: |
Right now only flash partition case is covered but it may be extended to e.g.
UBI volumes in the future.
+ Variables can be defined as NVMEM device subnodes.
+
maintainers:
- Rafał Miłecki <rafal@milecki.pl>
@@ -40,6 +42,14 @@ properties:
reg:
maxItems: 1
+ bootcmd:
+ type: object
+ description: Command to use for automatic booting
+
+ ethaddr:
+ type: object
+ description: Ethernet interface's MAC address
+
additionalProperties: false
examples:
@@ -58,5 +68,8 @@ examples:
env: partition@40000 {
compatible = "u-boot,env";
reg = <0x40000 0x10000>;
+
+ mac: ethaddr {
+ };
};
};
diff --git a/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml b/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml
index 729ae97b63d9..385b0692261c 100644
--- a/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml
+++ b/Documentation/devicetree/bindings/opp/allwinner,sun50i-h6-operating-points.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/opp/allwinner,sun50i-h6-operating-points.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner H6 CPU OPP Device Tree Bindings
+title: Allwinner H6 CPU OPP
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
index 76c8acd981b3..66d0ec763f0b 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
@@ -50,6 +50,16 @@ patternProperties:
property to uniquely identify the OPP nodes exists. Devices like power
domains must have another (implementation dependent) property.
+ Entries for multiple clocks shall be provided in the same field, as
+ array of frequencies. The OPP binding doesn't provide any provisions
+ to relate the values to their clocks or the order in which the clocks
+ need to be configured and that is left for the implementation
+ specific binding.
+ minItems: 1
+ maxItems: 16
+ items:
+ maxItems: 1
+
opp-microvolt:
description: |
Voltage for the OPP
diff --git a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
index 30f7b596d609..a202b6c6561d 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-kryo-cpu.yaml
@@ -40,6 +40,7 @@ properties:
patternProperties:
'^opp-?[0-9]+$':
type: object
+ additionalProperties: false
properties:
opp-hz: true
@@ -98,6 +99,8 @@ examples:
capacity-dmips-mhz = <1024>;
clocks = <&kryocc 0>;
operating-points-v2 = <&cluster0_opp>;
+ power-domains = <&cpr>;
+ power-domain-names = "cpr";
#cooling-cells = <2>;
next-level-cache = <&L2_0>;
L2_0: l2-cache {
@@ -115,6 +118,8 @@ examples:
capacity-dmips-mhz = <1024>;
clocks = <&kryocc 0>;
operating-points-v2 = <&cluster0_opp>;
+ power-domains = <&cpr>;
+ power-domain-names = "cpr";
#cooling-cells = <2>;
next-level-cache = <&L2_0>;
};
@@ -128,6 +133,8 @@ examples:
capacity-dmips-mhz = <1024>;
clocks = <&kryocc 1>;
operating-points-v2 = <&cluster1_opp>;
+ power-domains = <&cpr>;
+ power-domain-names = "cpr";
#cooling-cells = <2>;
next-level-cache = <&L2_1>;
L2_1: l2-cache {
@@ -145,6 +152,8 @@ examples:
capacity-dmips-mhz = <1024>;
clocks = <&kryocc 1>;
operating-points-v2 = <&cluster1_opp>;
+ power-domains = <&cpr>;
+ power-domain-names = "cpr";
#cooling-cells = <2>;
next-level-cache = <&L2_1>;
};
@@ -182,18 +191,21 @@ examples:
opp-microvolt = <905000 905000 1140000>;
opp-supported-hw = <0x7>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp1>;
};
opp-1401600000 {
opp-hz = /bits/ 64 <1401600000>;
opp-microvolt = <1140000 905000 1140000>;
opp-supported-hw = <0x5>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp2>;
};
opp-1593600000 {
opp-hz = /bits/ 64 <1593600000>;
opp-microvolt = <1140000 905000 1140000>;
opp-supported-hw = <0x1>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp3>;
};
};
@@ -207,24 +219,28 @@ examples:
opp-microvolt = <905000 905000 1140000>;
opp-supported-hw = <0x7>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp1>;
};
opp-1804800000 {
opp-hz = /bits/ 64 <1804800000>;
opp-microvolt = <1140000 905000 1140000>;
opp-supported-hw = <0x6>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp4>;
};
opp-1900800000 {
opp-hz = /bits/ 64 <1900800000>;
opp-microvolt = <1140000 905000 1140000>;
opp-supported-hw = <0x4>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp5>;
};
opp-2150400000 {
opp-hz = /bits/ 64 <2150400000>;
opp-microvolt = <1140000 905000 1140000>;
opp-supported-hw = <0x1>;
clock-latency-ns = <200000>;
+ required-opps = <&cpr_opp6>;
};
};
diff --git a/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml b/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
index 14a7a689ad6d..df8442fb11f0 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml
@@ -19,6 +19,7 @@ properties:
patternProperties:
'^opp-?[0-9]+$':
type: object
+ additionalProperties: false
properties:
opp-level: true
diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
index 0f064e4222f3..7e15aae7d69e 100644
--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pci/brcm,stb-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Brcmstb PCIe Host Controller Device Tree Bindings
+title: Brcmstb PCIe Host Controller
maintainers:
- Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
index 252e5b72aee0..376e739bcad4 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
@@ -144,6 +144,7 @@ properties:
description: If present then the reset sequence using the GPIO
specified in the "reset-gpio" property is reversed (H=reset state,
L=operation state) (optional required).
+ type: boolean
vpcie-supply:
description: Should specify the regulator in charge of PCIe port power.
diff --git a/Documentation/devicetree/bindings/pci/host-generic-pci.yaml b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
index 6bcaa8f2c3cf..d25423aa7167 100644
--- a/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
+++ b/Documentation/devicetree/bindings/pci/host-generic-pci.yaml
@@ -106,6 +106,9 @@ properties:
maxItems: 3
dma-coherent: true
+ iommu-map: true
+ iommu-map-mask: true
+ msi-parent: true
required:
- compatible
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
index 57ae73462272..684227522267 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
@@ -7,6 +7,7 @@ Required properties:
"mediatek,mt7622-pcie"
"mediatek,mt7623-pcie"
"mediatek,mt7629-pcie"
+ "airoha,en7523-pcie"
- device_type: Must be "pci"
- reg: Base addresses and lengths of the root ports.
- reg-names: Names of the above areas to use during resource lookup.
diff --git a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
index edb4f81253c8..d2c1b3d46584 100644
--- a/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
+++ b/Documentation/devicetree/bindings/pci/microchip,pcie-host.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pci/microchip,pcie-host.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip PCIe Root Port Bridge Controller Device Tree Bindings
+title: Microchip PCIe Root Port Bridge Controller
maintainers:
- Daire McNamara <daire.mcnamara@microchip.com>
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
new file mode 100644
index 000000000000..a24fb8307d29
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
@@ -0,0 +1,319 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/nvidia,tegra194-pcie-ep.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra194 (and later) PCIe Endpoint controller (Synopsys DesignWare Core based)
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+ - Vidya Sagar <vidyas@nvidia.com>
+
+description: |
+ This PCIe controller is based on the Synopsys DesignWare PCIe IP and thus
+ inherits all the common properties defined in snps,dw-pcie-ep.yaml. Some
+ of the controller instances are dual mode; they can work either in Root
+ Port mode or Endpoint mode but one at a time.
+
+ On Tegra194, controllers C0, C4 and C5 support Endpoint mode.
+ On Tegra234, controllers C5, C6, C7 and C10 support Endpoint mode.
+
+ Note: On Tegra194's P2972-0000 platform, only C5 controller can be enabled to
+ operate in the Endpoint mode because of the way the platform is designed.
+
+properties:
+ compatible:
+ enum:
+ - nvidia,tegra194-pcie-ep
+ - nvidia,tegra234-pcie-ep
+
+ reg:
+ items:
+ - description: controller's application logic registers
+ - description: iATU and DMA registers. This is where the iATU (internal
+ Address Translation Unit) registers of the PCIe core are made
+ available for software access.
+ - description: aperture where the Root Port's own configuration
+ registers are available.
+ - description: aperture used to map the remote Root Complex address space
+
+ reg-names:
+ items:
+ - const: appl
+ - const: atu_dma
+ - const: dbi
+ - const: addr_space
+
+ interrupts:
+ items:
+ - description: controller interrupt
+
+ interrupt-names:
+ items:
+ - const: intr
+
+ clocks:
+ items:
+ - description: module clock
+
+ clock-names:
+ items:
+ - const: core
+
+ resets:
+ items:
+ - description: APB bus interface reset
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: apb
+ - const: core
+
+ reset-gpios:
+ description: Must contain a phandle to a GPIO controller followed by GPIO
+ that is being used as PERST input signal. Please refer to pci.txt.
+
+ phys:
+ minItems: 1
+ maxItems: 8
+
+ phy-names:
+ minItems: 1
+ items:
+ - const: p2u-0
+ - const: p2u-1
+ - const: p2u-2
+ - const: p2u-3
+ - const: p2u-4
+ - const: p2u-5
+ - const: p2u-6
+ - const: p2u-7
+
+ power-domains:
+ maxItems: 1
+ description: |
+ A phandle to the node that controls power to the respective PCIe
+ controller and a specifier name for the PCIe controller.
+
+ Tegra194 specifiers are defined in "include/dt-bindings/power/tegra194-powergate.h"
+ Tegra234 specifiers are defined in "include/dt-bindings/power/tegra234-powergate.h"
+
+ interconnects:
+ items:
+ - description: memory read client
+ - description: memory write client
+
+ interconnect-names:
+ items:
+ - const: dma-mem # read
+ - const: write
+
+ dma-coherent: true
+
+ nvidia,bpmp:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: |
+ Must contain a pair of phandles to BPMP controller node followed by
+ controller ID. Following are the controller IDs for each controller:
+
+ Tegra194
+
+ 0: C0
+ 1: C1
+ 2: C2
+ 3: C3
+ 4: C4
+ 5: C5
+
+ Tegra234
+
+ 0 : C0
+ 1 : C1
+ 2 : C2
+ 3 : C3
+ 4 : C4
+ 5 : C5
+ 6 : C6
+ 7 : C7
+ 8 : C8
+ 9 : C9
+ 10: C10
+
+ items:
+ - items:
+ - description: phandle to BPMP controller node
+ - description: PCIe controller ID
+ maximum: 10
+
+ nvidia,aspm-cmrt-us:
+ description: Common Mode Restore Time for proper operation of ASPM to be
+ specified in microseconds
+
+ nvidia,aspm-pwr-on-t-us:
+ description: Power On time for proper operation of ASPM to be specified in
+ microseconds
+
+ nvidia,aspm-l0s-entrance-latency-us:
+ description: ASPM L0s entrance latency to be specified in microseconds
+
+ vddio-pex-ctl-supply:
+ description: A phandle to the regulator supply for PCIe side band signals
+
+ nvidia,refclk-select-gpios:
+ maxItems: 1
+ description: GPIO used to enable REFCLK to controller from the host
+
+ nvidia,enable-ext-refclk:
+ description: |
+ This boolean property needs to be present if the controller is configured
+ to receive Reference Clock from the host.
+ NOTE: This is applicable only for Tegra234.
+
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ nvidia,enable-srns:
+ description: |
+ This boolean property needs to be present if the controller is
+ configured to operate in SRNS (Separate Reference Clocks with No
+ Spread-Spectrum Clocking). NOTE: This is applicable only for
+ Tegra234.
+
+ $ref: /schemas/types.yaml#/definitions/flag
+
+allOf:
+ - $ref: /schemas/pci/snps,dw-pcie-ep.yaml#
+
+unevaluatedProperties: false
+
+required:
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+ - reset-gpios
+ - vddio-pex-ctl-supply
+ - num-lanes
+ - phys
+ - phy-names
+ - nvidia,bpmp
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra194-clock.h>
+ #include <dt-bindings/gpio/tegra194-gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/tegra194-powergate.h>
+ #include <dt-bindings/reset/tegra194-reset.h>
+
+ bus@0 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0x8 0x0>;
+
+ pcie-ep@141a0000 {
+ compatible = "nvidia,tegra194-pcie-ep";
+ reg = <0x00 0x141a0000 0x0 0x00020000>, /* appl registers (128K) */
+ <0x00 0x3a040000 0x0 0x00040000>, /* iATU_DMA reg space (256K) */
+ <0x00 0x3a080000 0x0 0x00040000>, /* DBI reg space (256K) */
+ <0x1c 0x00000000 0x4 0x00000000>; /* Address Space (16G) */
+ reg-names = "appl", "atu_dma", "dbi", "addr_space";
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
+ interrupt-names = "intr";
+
+ clocks = <&bpmp TEGRA194_CLK_PEX1_CORE_5>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA194_RESET_PEX1_CORE_5_APB>,
+ <&bpmp TEGRA194_RESET_PEX1_CORE_5>;
+ reset-names = "apb", "core";
+
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8A>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&clkreq_c5_bi_dir_state>;
+
+ nvidia,bpmp = <&bpmp 5>;
+
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+
+ vddio-pex-ctl-supply = <&vdd_1v8ao>;
+
+ reset-gpios = <&gpio TEGRA194_MAIN_GPIO(GG, 1) GPIO_ACTIVE_LOW>;
+
+ nvidia,refclk-select-gpios = <&gpio_aon TEGRA194_AON_GPIO(AA, 5)
+ GPIO_ACTIVE_HIGH>;
+
+ num-lanes = <8>;
+
+ phys = <&p2u_nvhs_0>, <&p2u_nvhs_1>, <&p2u_nvhs_2>,
+ <&p2u_nvhs_3>, <&p2u_nvhs_4>, <&p2u_nvhs_5>,
+ <&p2u_nvhs_6>, <&p2u_nvhs_7>;
+
+ phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3", "p2u-4",
+ "p2u-5", "p2u-6", "p2u-7";
+ };
+ };
+
+ - |
+ #include <dt-bindings/clock/tegra234-clock.h>
+ #include <dt-bindings/gpio/tegra234-gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/tegra234-powergate.h>
+ #include <dt-bindings/reset/tegra234-reset.h>
+
+ bus@0 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0x8 0x0>;
+
+ pcie-ep@141a0000 {
+ compatible = "nvidia,tegra234-pcie-ep";
+ power-domains = <&bpmp TEGRA234_POWER_DOMAIN_PCIEX8A>;
+ reg = <0x00 0x141a0000 0x0 0x00020000>, /* appl registers (128K) */
+ <0x00 0x3a040000 0x0 0x00040000>, /* iATU_DMA reg space (256K) */
+ <0x00 0x3a080000 0x0 0x00040000>, /* DBI reg space (256K) */
+ <0x27 0x40000000 0x4 0x00000000>; /* Address Space (16G) */
+ reg-names = "appl", "atu_dma", "dbi", "addr_space";
+
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
+ interrupt-names = "intr";
+
+ clocks = <&bpmp TEGRA234_CLK_PEX1_C5_CORE>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA234_RESET_PEX1_CORE_5_APB>,
+ <&bpmp TEGRA234_RESET_PEX1_CORE_5>;
+ reset-names = "apb", "core";
+
+ nvidia,bpmp = <&bpmp 5>;
+
+ nvidia,enable-ext-refclk;
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+
+ vddio-pex-ctl-supply = <&p3701_vdd_1v8_ls>;
+
+ reset-gpios = <&gpio TEGRA234_MAIN_GPIO(AF, 1) GPIO_ACTIVE_LOW>;
+
+ nvidia,refclk-select-gpios = <&gpio_aon
+ TEGRA234_AON_GPIO(AA, 4)
+ GPIO_ACTIVE_HIGH>;
+
+ num-lanes = <8>;
+
+ phys = <&p2u_nvhs_0>, <&p2u_nvhs_1>, <&p2u_nvhs_2>,
+ <&p2u_nvhs_3>, <&p2u_nvhs_4>, <&p2u_nvhs_5>,
+ <&p2u_nvhs_6>, <&p2u_nvhs_7>;
+
+ phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3", "p2u-4",
+ "p2u-5", "p2u-6", "p2u-7";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
deleted file mode 100644
index 8e4f9bfb316d..000000000000
--- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt
+++ /dev/null
@@ -1,245 +0,0 @@
-NVIDIA Tegra PCIe controller (Synopsys DesignWare Core based)
-
-This PCIe controller is based on the Synopsis Designware PCIe IP
-and thus inherits all the common properties defined in snps,dw-pcie.yaml and
-snps,dw-pcie-ep.yaml.
-Some of the controller instances are dual mode where in they can work either
-in root port mode or endpoint mode but one at a time.
-
-Required properties:
-- power-domains: A phandle to the node that controls power to the respective
- PCIe controller and a specifier name for the PCIe controller. Following are
- the specifiers for the different PCIe controllers
- TEGRA194_POWER_DOMAIN_PCIEX8B: C0
- TEGRA194_POWER_DOMAIN_PCIEX1A: C1
- TEGRA194_POWER_DOMAIN_PCIEX1A: C2
- TEGRA194_POWER_DOMAIN_PCIEX1A: C3
- TEGRA194_POWER_DOMAIN_PCIEX4A: C4
- TEGRA194_POWER_DOMAIN_PCIEX8A: C5
- these specifiers are defined in
- "include/dt-bindings/power/tegra194-powergate.h" file.
-- reg: A list of physical base address and length pairs for each set of
- controller registers. Must contain an entry for each entry in the reg-names
- property.
-- reg-names: Must include the following entries:
- "appl": Controller's application logic registers
- "config": As per the definition in snps,dw-pcie.yaml
- "atu_dma": iATU and DMA registers. This is where the iATU (internal Address
- Translation Unit) registers of the PCIe core are made available
- for SW access.
- "dbi": The aperture where root port's own configuration registers are
- available
-- interrupts: A list of interrupt outputs of the controller. Must contain an
- entry for each entry in the interrupt-names property.
-- interrupt-names: Must include the following entries:
- "intr": The Tegra interrupt that is asserted for controller interrupts
-- clocks: Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names: Must include the following entries:
- - core
-- resets: Must contain an entry for each entry in reset-names.
- See ../reset/reset.txt for details.
-- reset-names: Must include the following entries:
- - apb
- - core
-- phys: Must contain a phandle to P2U PHY for each entry in phy-names.
-- phy-names: Must include an entry for each active lane.
- "p2u-N": where N ranges from 0 to one less than the total number of lanes
-- nvidia,bpmp: Must contain a pair of phandle to BPMP controller node followed
- by controller-id. Following are the controller ids for each controller.
- 0: C0
- 1: C1
- 2: C2
- 3: C3
- 4: C4
- 5: C5
-- vddio-pex-ctl-supply: Regulator supply for PCIe side band signals
-
-RC mode:
-- compatible: Tegra19x must contain "nvidia,tegra194-pcie"
-- device_type: Must be "pci" for RC mode
-- interrupt-names: Must include the following entries:
- "msi": The Tegra interrupt that is asserted when an MSI is received
-- bus-range: Range of bus numbers associated with this controller
-- #address-cells: Address representation for root ports (must be 3)
- - cell 0 specifies the bus and device numbers of the root port:
- [23:16]: bus number
- [15:11]: device number
- - cell 1 denotes the upper 32 address bits and should be 0
- - cell 2 contains the lower 32 address bits and is used to translate to the
- CPU address space
-- #size-cells: Size representation for root ports (must be 2)
-- ranges: Describes the translation of addresses for root ports and standard
- PCI regions. The entries must be 7 cells each, where the first three cells
- correspond to the address as described for the #address-cells property
- above, the fourth and fifth cells are for the physical CPU address to
- translate to and the sixth and seventh cells are as described for the
- #size-cells property above.
- - Entries setup the mapping for the standard I/O, memory and
- prefetchable PCI regions. The first cell determines the type of region
- that is setup:
- - 0x81000000: I/O memory region
- - 0x82000000: non-prefetchable memory region
- - 0xc2000000: prefetchable memory region
- Please refer to the standard PCI bus binding document for a more detailed
- explanation.
-- #interrupt-cells: Size representation for interrupts (must be 1)
-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
- Please refer to the standard PCI bus binding document for a more detailed
- explanation.
-
-EP mode:
-In Tegra194, Only controllers C0, C4 & C5 support EP mode.
-- compatible: Tegra19x must contain "nvidia,tegra194-pcie-ep"
-- reg-names: Must include the following entries:
- "addr_space": Used to map remote RC address space
-- reset-gpios: Must contain a phandle to a GPIO controller followed by
- GPIO that is being used as PERST input signal. Please refer to pci.txt
- document.
-
-Optional properties:
-- pinctrl-names: A list of pinctrl state names.
- It is mandatory for C5 controller and optional for other controllers.
- - "default": Configures PCIe I/O for proper operation.
-- pinctrl-0: phandle for the 'default' state of pin configuration.
- It is mandatory for C5 controller and optional for other controllers.
-- supports-clkreq: Refer to Documentation/devicetree/bindings/pci/pci.txt
-- nvidia,update-fc-fixup: This is a boolean property and needs to be present to
- improve performance when a platform is designed in such a way that it
- satisfies at least one of the following conditions thereby enabling root
- port to exchange optimum number of FC (Flow Control) credits with
- downstream devices
- 1. If C0/C4/C5 run at x1/x2 link widths (irrespective of speed and MPS)
- 2. If C0/C1/C2/C3/C4/C5 operate at their respective max link widths and
- a) speed is Gen-2 and MPS is 256B
- b) speed is >= Gen-3 with any MPS
-- nvidia,aspm-cmrt-us: Common Mode Restore Time for proper operation of ASPM
- to be specified in microseconds
-- nvidia,aspm-pwr-on-t-us: Power On time for proper operation of ASPM to be
- specified in microseconds
-- nvidia,aspm-l0s-entrance-latency-us: ASPM L0s entrance latency to be
- specified in microseconds
-
-RC mode:
-- vpcie3v3-supply: A phandle to the regulator node that supplies 3.3V to the slot
- if the platform has one such slot. (Ex:- x16 slot owned by C5 controller
- in p2972-0000 platform).
-- vpcie12v-supply: A phandle to the regulator node that supplies 12V to the slot
- if the platform has one such slot. (Ex:- x16 slot owned by C5 controller
- in p2972-0000 platform).
-
-EP mode:
-- nvidia,refclk-select-gpios: Must contain a phandle to a GPIO controller
- followed by GPIO that is being used to enable REFCLK to controller from host
-
-NOTE:- On Tegra194's P2972-0000 platform, only C5 controller can be enabled to
-operate in the endpoint mode because of the way the platform is designed.
-
-Examples:
-=========
-
-Tegra194 RC mode:
------------------
-
- pcie@14180000 {
- compatible = "nvidia,tegra194-pcie";
- power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>;
- reg = <0x00 0x14180000 0x0 0x00020000 /* appl registers (128K) */
- 0x00 0x38000000 0x0 0x00040000 /* configuration space (256K) */
- 0x00 0x38040000 0x0 0x00040000>; /* iATU_DMA reg space (256K) */
- reg-names = "appl", "config", "atu_dma";
-
- #address-cells = <3>;
- #size-cells = <2>;
- device_type = "pci";
- num-lanes = <8>;
- linux,pci-domain = <0>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&pex_rst_c5_out_state>, <&clkreq_c5_bi_dir_state>;
-
- clocks = <&bpmp TEGRA194_CLK_PEX0_CORE_0>;
- clock-names = "core";
-
- resets = <&bpmp TEGRA194_RESET_PEX0_CORE_0_APB>,
- <&bpmp TEGRA194_RESET_PEX0_CORE_0>;
- reset-names = "apb", "core";
-
- interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
- <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
- interrupt-names = "intr", "msi";
-
- #interrupt-cells = <1>;
- interrupt-map-mask = <0 0 0 0>;
- interrupt-map = <0 0 0 0 &gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
-
- nvidia,bpmp = <&bpmp 0>;
-
- supports-clkreq;
- nvidia,aspm-cmrt-us = <60>;
- nvidia,aspm-pwr-on-t-us = <20>;
- nvidia,aspm-l0s-entrance-latency-us = <3>;
-
- bus-range = <0x0 0xff>;
- ranges = <0x81000000 0x0 0x38100000 0x0 0x38100000 0x0 0x00100000 /* downstream I/O (1MB) */
- 0x82000000 0x0 0x38200000 0x0 0x38200000 0x0 0x01E00000 /* non-prefetchable memory (30MB) */
- 0xc2000000 0x18 0x00000000 0x18 0x00000000 0x4 0x00000000>; /* prefetchable memory (16GB) */
-
- vddio-pex-ctl-supply = <&vdd_1v8ao>;
- vpcie3v3-supply = <&vdd_3v3_pcie>;
- vpcie12v-supply = <&vdd_12v_pcie>;
-
- phys = <&p2u_hsio_2>, <&p2u_hsio_3>, <&p2u_hsio_4>,
- <&p2u_hsio_5>;
- phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3";
- };
-
-Tegra194 EP mode:
------------------
-
- pcie-ep@141a0000 {
- compatible = "nvidia,tegra194-pcie-ep", "snps,dw-pcie-ep";
- power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8A>;
- reg = <0x00 0x141a0000 0x0 0x00020000 /* appl registers (128K) */
- 0x00 0x3a040000 0x0 0x00040000 /* iATU_DMA reg space (256K) */
- 0x00 0x3a080000 0x0 0x00040000 /* DBI reg space (256K) */
- 0x1c 0x00000000 0x4 0x00000000>; /* Address Space (16G) */
- reg-names = "appl", "atu_dma", "dbi", "addr_space";
-
- num-lanes = <8>;
- num-ib-windows = <2>;
- num-ob-windows = <8>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&clkreq_c5_bi_dir_state>;
-
- clocks = <&bpmp TEGRA194_CLK_PEX1_CORE_5>;
- clock-names = "core";
-
- resets = <&bpmp TEGRA194_RESET_PEX1_CORE_5_APB>,
- <&bpmp TEGRA194_RESET_PEX1_CORE_5>;
- reset-names = "apb", "core";
-
- interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>; /* controller interrupt */
- interrupt-names = "intr";
-
- nvidia,bpmp = <&bpmp 5>;
-
- nvidia,aspm-cmrt-us = <60>;
- nvidia,aspm-pwr-on-t-us = <20>;
- nvidia,aspm-l0s-entrance-latency-us = <3>;
-
- vddio-pex-ctl-supply = <&vdd_1v8ao>;
-
- reset-gpios = <&gpio TEGRA194_MAIN_GPIO(GG, 1) GPIO_ACTIVE_LOW>;
-
- nvidia,refclk-select-gpios = <&gpio_aon TEGRA194_AON_GPIO(AA, 5)
- GPIO_ACTIVE_HIGH>;
-
- phys = <&p2u_nvhs_0>, <&p2u_nvhs_1>, <&p2u_nvhs_2>,
- <&p2u_nvhs_3>, <&p2u_nvhs_4>, <&p2u_nvhs_5>,
- <&p2u_nvhs_6>, <&p2u_nvhs_7>;
-
- phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3", "p2u-4",
- "p2u-5", "p2u-6", "p2u-7";
- };
diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
new file mode 100644
index 000000000000..75da3e8eecb9
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
@@ -0,0 +1,350 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/nvidia,tegra194-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra194 (and later) PCIe controller (Synopsys DesignWare Core based)
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jon Hunter <jonathanh@nvidia.com>
+ - Vidya Sagar <vidyas@nvidia.com>
+
+description: |
+ This PCIe controller is based on the Synopsys DesignWare PCIe IP and thus
+ inherits all the common properties defined in snps,dw-pcie.yaml. Some of
+ the controller instances are dual mode where in they can work either in
+ Root Port mode or Endpoint mode but one at a time.
+
+ See nvidia,tegra194-pcie-ep.yaml for details on the Endpoint mode device
+ tree bindings.
+
+properties:
+ compatible:
+ enum:
+ - nvidia,tegra194-pcie
+ - nvidia,tegra234-pcie
+
+ reg:
+ items:
+ - description: controller's application logic registers
+ - description: configuration registers
+ - description: iATU and DMA registers. This is where the iATU (internal
+ Address Translation Unit) registers of the PCIe core are made
+ available for software access.
+ - description: aperture where the Root Port's own configuration
+ registers are available.
+
+ reg-names:
+ items:
+ - const: appl
+ - const: config
+ - const: atu_dma
+ - const: dbi
+
+ interrupts:
+ items:
+ - description: controller interrupt
+ - description: MSI interrupt
+
+ interrupt-names:
+ items:
+ - const: intr
+ - const: msi
+
+ clocks:
+ items:
+ - description: module clock
+
+ clock-names:
+ items:
+ - const: core
+
+ resets:
+ items:
+ - description: APB bus interface reset
+ - description: module reset
+
+ reset-names:
+ items:
+ - const: apb
+ - const: core
+
+ phys:
+ minItems: 1
+ maxItems: 8
+
+ phy-names:
+ minItems: 1
+ items:
+ - const: p2u-0
+ - const: p2u-1
+ - const: p2u-2
+ - const: p2u-3
+ - const: p2u-4
+ - const: p2u-5
+ - const: p2u-6
+ - const: p2u-7
+
+ power-domains:
+ maxItems: 1
+ description: |
+ A phandle to the node that controls power to the respective PCIe
+ controller and a specifier name for the PCIe controller.
+
+ Tegra194 specifiers defined in "include/dt-bindings/power/tegra194-powergate.h"
+ Tegra234 specifiers defined in "include/dt-bindings/power/tegra234-powergate.h"
+
+ interconnects:
+ items:
+ - description: memory read client
+ - description: memory write client
+
+ interconnect-names:
+ items:
+ - const: dma-mem # read
+ - const: write
+
+ dma-coherent: true
+
+ nvidia,bpmp:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: |
+ Must contain a pair of phandles to BPMP controller node followed by
+ controller ID. Following are the controller IDs for each controller:
+
+ Tegra194
+
+ 0: C0
+ 1: C1
+ 2: C2
+ 3: C3
+ 4: C4
+ 5: C5
+
+ Tegra234
+
+ 0 : C0
+ 1 : C1
+ 2 : C2
+ 3 : C3
+ 4 : C4
+ 5 : C5
+ 6 : C6
+ 7 : C7
+ 8 : C8
+ 9 : C9
+ 10: C10
+
+ items:
+ - items:
+ - description: phandle to BPMP controller node
+ - description: PCIe controller ID
+ maximum: 10
+
+ nvidia,update-fc-fixup:
+ description: |
+ This is a boolean property and needs to be present to improve performance
+ when a platform is designed in such a way that it satisfies at least one
+ of the following conditions thereby enabling Root Port to exchange
+ optimum number of FC (Flow Control) credits with downstream devices:
+
+ NOTE: This is applicable only for Tegra194.
+
+ 1. If C0/C4/C5 run at x1/x2 link widths (irrespective of speed and MPS)
+ 2. If C0/C1/C2/C3/C4/C5 operate at their respective max link widths and
+ a) speed is Gen-2 and MPS is 256B
+ b) speed is >= Gen-3 with any MPS
+
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ nvidia,aspm-cmrt-us:
+ description: Common Mode Restore Time for proper operation of ASPM to be
+ specified in microseconds
+
+ nvidia,aspm-pwr-on-t-us:
+ description: Power On time for proper operation of ASPM to be specified in
+ microseconds
+
+ nvidia,aspm-l0s-entrance-latency-us:
+ description: ASPM L0s entrance latency to be specified in microseconds
+
+ vddio-pex-ctl-supply:
+ description: A phandle to the regulator supply for PCIe side band signals.
+
+ vpcie3v3-supply:
+ description: A phandle to the regulator node that supplies 3.3V to the slot
+ if the platform has one such slot, e.g., x16 slot owned by C5 controller
+ in p2972-0000 platform.
+
+ vpcie12v-supply:
+ description: A phandle to the regulator node that supplies 12V to the slot
+ if the platform has one such slot, e.g., x16 slot owned by C5 controller
+ in p2972-0000 platform.
+
+ nvidia,enable-srns:
+ description: |
+ This boolean property needs to be present if the controller is
+ configured to operate in SRNS (Separate Reference Clocks with No
+ Spread-Spectrum Clocking). NOTE: This is applicable only for
+ Tegra234.
+
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ nvidia,enable-ext-refclk:
+ description: |
+ This boolean property needs to be present if the controller is
+ configured to use the reference clocking coming in from an external
+ clock source instead of using the internal clock source.
+
+ $ref: /schemas/types.yaml#/definitions/flag
+
+allOf:
+ - $ref: /schemas/pci/snps,dw-pcie.yaml#
+
+unevaluatedProperties: false
+
+required:
+ - interrupts
+ - interrupt-names
+ - interrupt-map
+ - interrupt-map-mask
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - power-domains
+ - vddio-pex-ctl-supply
+ - num-lanes
+ - phys
+ - phy-names
+ - nvidia,bpmp
+
+examples:
+ - |
+ #include <dt-bindings/clock/tegra194-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/tegra194-powergate.h>
+ #include <dt-bindings/reset/tegra194-reset.h>
+
+ bus@0 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0x8 0x0>;
+
+ pcie@14180000 {
+ compatible = "nvidia,tegra194-pcie";
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>;
+ reg = <0x0 0x14180000 0x0 0x00020000>, /* appl registers (128K) */
+ <0x0 0x38000000 0x0 0x00040000>, /* configuration space (256K) */
+ <0x0 0x38040000 0x0 0x00040000>, /* iATU_DMA reg space (256K) */
+ <0x0 0x38080000 0x0 0x00040000>; /* DBI reg space (256K) */
+ reg-names = "appl", "config", "atu_dma", "dbi";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ num-lanes = <8>;
+ linux,pci-domain = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pex_rst_c5_out_state>, <&clkreq_c5_bi_dir_state>;
+
+ clocks = <&bpmp TEGRA194_CLK_PEX0_CORE_0>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA194_RESET_PEX0_CORE_0_APB>,
+ <&bpmp TEGRA194_RESET_PEX0_CORE_0>;
+ reset-names = "apb", "core";
+
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
+ <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+ interrupt-names = "intr", "msi";
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+
+ nvidia,bpmp = <&bpmp 0>;
+
+ supports-clkreq;
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+
+ bus-range = <0x0 0xff>;
+ ranges = <0x81000000 0x0 0x38100000 0x0 0x38100000 0x0 0x00100000>, /* downstream I/O */
+ <0x82000000 0x0 0x38200000 0x0 0x38200000 0x0 0x01e00000>, /* non-prefetch memory */
+ <0xc2000000 0x18 0x00000000 0x18 0x00000000 0x4 0x00000000>; /* prefetchable memory */
+
+ vddio-pex-ctl-supply = <&vdd_1v8ao>;
+ vpcie3v3-supply = <&vdd_3v3_pcie>;
+ vpcie12v-supply = <&vdd_12v_pcie>;
+
+ phys = <&p2u_hsio_2>, <&p2u_hsio_3>, <&p2u_hsio_4>,
+ <&p2u_hsio_5>;
+ phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3";
+ };
+ };
+
+ - |
+ #include <dt-bindings/clock/tegra234-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/tegra234-powergate.h>
+ #include <dt-bindings/reset/tegra234-reset.h>
+
+ bus@0 {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0x8 0x0>;
+
+ pcie@14160000 {
+ compatible = "nvidia,tegra234-pcie";
+ power-domains = <&bpmp TEGRA234_POWER_DOMAIN_PCIEX4BB>;
+ reg = <0x00 0x14160000 0x0 0x00020000>, /* appl registers (128K) */
+ <0x00 0x36000000 0x0 0x00040000>, /* configuration space (256K) */
+ <0x00 0x36040000 0x0 0x00040000>, /* iATU_DMA reg space (256K) */
+ <0x00 0x36080000 0x0 0x00040000>; /* DBI reg space (256K) */
+ reg-names = "appl", "config", "atu_dma", "dbi";
+
+ #address-cells = <3>;
+ #size-cells = <2>;
+ device_type = "pci";
+ num-lanes = <4>;
+ num-viewport = <8>;
+ linux,pci-domain = <4>;
+
+ clocks = <&bpmp TEGRA234_CLK_PEX0_C4_CORE>;
+ clock-names = "core";
+
+ resets = <&bpmp TEGRA234_RESET_PEX0_CORE_4_APB>,
+ <&bpmp TEGRA234_RESET_PEX0_CORE_4>;
+ reset-names = "apb", "core";
+
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>, /* controller interrupt */
+ <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>; /* MSI interrupt */
+ interrupt-names = "intr", "msi";
+
+ #interrupt-cells = <1>;
+ interrupt-map-mask = <0 0 0 0>;
+ interrupt-map = <0 0 0 0 &gic GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+
+ nvidia,bpmp = <&bpmp 4>;
+
+ nvidia,aspm-cmrt-us = <60>;
+ nvidia,aspm-pwr-on-t-us = <20>;
+ nvidia,aspm-l0s-entrance-latency-us = <3>;
+
+ bus-range = <0x0 0xff>;
+ ranges = <0x43000000 0x21 0x40000000 0x21 0x40000000 0x2 0xe8000000>, /* prefetchable */
+ <0x02000000 0x0 0x40000000 0x24 0x28000000 0x0 0x08000000>, /* non-prefetchable */
+ <0x01000000 0x0 0x36100000 0x00 0x36100000 0x0 0x00100000>; /* downstream I/O */
+
+ vddio-pex-ctl-supply = <&p3701_vdd_AO_1v8>;
+
+ phys = <&p2u_hsio_4>, <&p2u_hsio_5>, <&p2u_hsio_6>,
+ <&p2u_hsio_7>;
+ phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
deleted file mode 100644
index aeba38f0a387..000000000000
--- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-Renesas AHB to PCI bridge
--------------------------
-
-This is the bridge used internally to connect the USB controllers to the
-AHB. There is one bridge instance per USB port connected to the internal
-OHCI and EHCI controllers.
-
-Required properties:
-- compatible: "renesas,pci-r8a7742" for the R8A7742 SoC;
- "renesas,pci-r8a7743" for the R8A7743 SoC;
- "renesas,pci-r8a7744" for the R8A7744 SoC;
- "renesas,pci-r8a7745" for the R8A7745 SoC;
- "renesas,pci-r8a7790" for the R8A7790 SoC;
- "renesas,pci-r8a7791" for the R8A7791 SoC;
- "renesas,pci-r8a7793" for the R8A7793 SoC;
- "renesas,pci-r8a7794" for the R8A7794 SoC;
- "renesas,pci-rcar-gen2" for a generic R-Car Gen2 or
- RZ/G1 compatible device.
-
-
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first
- followed by the generic version.
-
-- reg: A list of physical regions to access the device: the first is
- the operational registers for the OHCI/EHCI controllers and the
- second is for the bridge configuration and control registers.
-- interrupts: interrupt for the device.
-- clocks: The reference to the device clock.
-- bus-range: The PCI bus number range; as this is a single bus, the range
- should be specified as the same value twice.
-- #address-cells: must be 3.
-- #size-cells: must be 2.
-- #interrupt-cells: must be 1.
-- interrupt-map: standard property used to define the mapping of the PCI
- interrupts to the GIC interrupts.
-- interrupt-map-mask: standard property that helps to define the interrupt
- mapping.
-
-Optional properties:
-- dma-ranges: a single range for the inbound memory region. If not supplied,
- defaults to 1GiB at 0x40000000. Note there are hardware restrictions on the
- allowed combinations of address and size.
-
-Example SoC configuration:
-
- pci0: pci@ee090000 {
- compatible = "renesas,pci-r8a7790", "renesas,pci-rcar-gen2";
- clocks = <&mstp7_clks R8A7790_CLK_EHCI>;
- reg = <0x0 0xee090000 0x0 0xc00>,
- <0x0 0xee080000 0x0 0x1100>;
- interrupts = <0 108 IRQ_TYPE_LEVEL_HIGH>;
- status = "disabled";
-
- bus-range = <0 0>;
- #address-cells = <3>;
- #size-cells = <2>;
- #interrupt-cells = <1>;
- dma-ranges = <0x42000000 0 0x40000000 0 0x40000000 0 0x40000000>;
- interrupt-map-mask = <0xff00 0 0 0x7>;
- interrupt-map = <0x0000 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH
- 0x0800 0 0 1 &gic 0 108 IRQ_TYPE_LEVEL_HIGH
- 0x1000 0 0 2 &gic 0 108 IRQ_TYPE_LEVEL_HIGH>;
-
- usb@1,0 {
- reg = <0x800 0 0 0 0>;
- phys = <&usb0 0>;
- phy-names = "usb";
- };
-
- usb@2,0 {
- reg = <0x1000 0 0 0 0>;
- phys = <&usb0 0>;
- phy-names = "usb";
- };
- };
-
-Example board setup:
-
-&pci0 {
- status = "okay";
- pinctrl-0 = <&usb0_pins>;
- pinctrl-names = "default";
-};
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 0b69b12b849e..dd84f1487bed 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -11,7 +11,7 @@ maintainers:
- Stanimir Varbanov <svarbanov@mm-sol.com>
description: |
- Qualcomm PCIe root complex controller is bansed on the Synopsys DesignWare
+ Qualcomm PCIe root complex controller is based on the Synopsys DesignWare
PCIe IP.
properties:
@@ -43,21 +43,22 @@ properties:
maxItems: 5
interrupts:
- maxItems: 1
+ minItems: 1
+ maxItems: 8
interrupt-names:
- items:
- - const: msi
+ minItems: 1
+ maxItems: 8
# Common definitions for clocks, clock-names and reset.
# Platform constraints are described later.
clocks:
minItems: 3
- maxItems: 12
+ maxItems: 13
clock-names:
minItems: 3
- maxItems: 12
+ maxItems: 13
resets:
minItems: 1
@@ -423,8 +424,8 @@ allOf:
then:
properties:
clocks:
- minItems: 11
- maxItems: 11
+ minItems: 13
+ maxItems: 13
clock-names:
items:
- const: pipe # PIPE clock
@@ -438,6 +439,8 @@ allOf:
- const: slave_q2a # Slave Q2A clock
- const: tbu # PCIe TBU clock
- const: ddrss_sf_tbu # PCIe SF TBU clock
+ - const: aggre0 # Aggre NoC PCIe CENTER SF AXI clock
+ - const: aggre1 # Aggre NoC PCIe1 AXI clock
resets:
maxItems: 1
reset-names:
@@ -614,7 +617,7 @@ allOf:
- if:
not:
properties:
- compatibles:
+ compatible:
contains:
enum:
- qcom,pcie-msm8996
@@ -623,6 +626,50 @@ allOf:
- resets
- reset-names
+ # Newer chipsets support either 1 or 8 MSI vectors
+ # On older chipsets it's always 1 MSI vector
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pcie-msm8996
+ - qcom,pcie-sc7280
+ - qcom,pcie-sc8180x
+ - qcom,pcie-sdm845
+ - qcom,pcie-sm8150
+ - qcom,pcie-sm8250
+ - qcom,pcie-sm8450-pcie0
+ - qcom,pcie-sm8450-pcie1
+ then:
+ oneOf:
+ - properties:
+ interrupts:
+ maxItems: 1
+ interrupt-names:
+ items:
+ - const: msi
+ - properties:
+ interrupts:
+ minItems: 8
+ interrupt-names:
+ items:
+ - const: msi0
+ - const: msi1
+ - const: msi2
+ - const: msi3
+ - const: msi4
+ - const: msi5
+ - const: msi6
+ - const: msi7
+ else:
+ properties:
+ interrupts:
+ maxItems: 1
+ interrupt-names:
+ items:
+ - const: msi
+
unevaluatedProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
new file mode 100644
index 000000000000..0f18cceba3d5
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml
@@ -0,0 +1,186 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/renesas,pci-rcar-gen2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas AHB to PCI bridge
+
+maintainers:
+ - Marek Vasut <marek.vasut+renesas@gmail.com>
+ - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+description: |
+ This is the bridge used internally to connect the USB controllers to the
+ AHB. There is one bridge instance per USB port connected to the internal
+ OHCI and EHCI controllers.
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - renesas,pci-r8a7742 # RZ/G1H
+ - renesas,pci-r8a7743 # RZ/G1M
+ - renesas,pci-r8a7744 # RZ/G1N
+ - renesas,pci-r8a7745 # RZ/G1E
+ - renesas,pci-r8a7790 # R-Car H2
+ - renesas,pci-r8a7791 # R-Car M2-W
+ - renesas,pci-r8a7793 # R-Car M2-N
+ - renesas,pci-r8a7794 # R-Car E2
+ - const: renesas,pci-rcar-gen2 # R-Car Gen2 and RZ/G1
+ - items:
+ - enum:
+ - renesas,pci-r9a06g032 # RZ/N1D
+ - const: renesas,pci-rzn1 # RZ/N1
+
+ reg:
+ items:
+ - description: Operational registers for the OHCI/EHCI controllers.
+ - description: Bridge configuration and control registers.
+
+ interrupts:
+ maxItems: 1
+
+ clocks: true
+
+ clock-names: true
+
+ resets:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ bus-range:
+ description: |
+ The PCI bus number range; as this is a single bus, the range
+ should be specified as the same value twice.
+
+ dma-ranges:
+ description: |
+ A single range for the inbound memory region. If not supplied,
+ defaults to 1GiB at 0x40000000. Note there are hardware restrictions on
+ the allowed combinations of address and size.
+ maxItems: 1
+
+patternProperties:
+ 'usb@[0-1],0':
+ type: object
+
+ description:
+ This a USB controller PCI device
+
+ properties:
+ reg:
+ description:
+ Identify the correct bus, device and function number in the
+ form <bdf 0 0 0 0>.
+
+ items:
+ minItems: 5
+ maxItems: 5
+
+ phys:
+ description:
+ Reference to the USB phy
+ maxItems: 1
+
+ phy-names:
+ maxItems: 1
+
+ required:
+ - reg
+ - phys
+ - phy-names
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-map
+ - interrupt-map-mask
+ - clocks
+ - power-domains
+ - bus-range
+ - "#address-cells"
+ - "#size-cells"
+ - "#interrupt-cells"
+
+allOf:
+ - $ref: /schemas/pci/pci-bus.yaml#
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,pci-rzn1
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Internal bus clock (AHB) for HOST
+ - description: Internal bus clock (AHB) Power Management
+ - description: PCI clock for USB subsystem
+ clock-names:
+ items:
+ - const: hclkh
+ - const: hclkpm
+ - const: pciclk
+ required:
+ - clock-names
+ else:
+ properties:
+ clocks:
+ items:
+ - description: Device clock
+ clock-names:
+ items:
+ - const: pclk
+ required:
+ - resets
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+ #include <dt-bindings/power/r8a7790-sysc.h>
+
+ pci@ee090000 {
+ compatible = "renesas,pci-r8a7790", "renesas,pci-rcar-gen2";
+ device_type = "pci";
+ reg = <0xee090000 0xc00>,
+ <0xee080000 0x1100>;
+ clocks = <&cpg CPG_MOD 703>;
+ power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+ resets = <&cpg 703>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+
+ bus-range = <0 0>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ #interrupt-cells = <1>;
+ ranges = <0x02000000 0 0xee080000 0xee080000 0 0x00010000>;
+ dma-ranges = <0x42000000 0 0x40000000 0x40000000 0 0x40000000>;
+ interrupt-map-mask = <0xf800 0 0 0x7>;
+ interrupt-map = <0x0000 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
+ <0x0800 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
+ <0x1000 0 0 2 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+
+ usb@1,0 {
+ reg = <0x800 0 0 0 0>;
+ phys = <&usb0 0>;
+ phy-names = "usb";
+ };
+
+ usb@2,0 {
+ reg = <0x1000 0 0 0 0>;
+ phys = <&usb0 0>;
+ phy-names = "usb";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml b/Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
index 445eed94b53f..f20ed7e709f7 100644
--- a/Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/samsung,exynos-pcie.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pci/samsung,exynos-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Samsung SoC series PCIe Host Controller Device Tree Bindings
+title: Samsung SoC series PCIe Host Controller
maintainers:
- Marek Szyprowski <m.szyprowski@samsung.com>
diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
index c90e5e2d25f6..7287d395e1b6 100644
--- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
@@ -34,8 +34,8 @@ properties:
minItems: 2
maxItems: 5
items:
- enum: [ dbi, dbi2, config, atu, app, elbi, mgmt, ctrl, parf, cfg, link,
- ulreg, smu, mpu, apb, phy ]
+ enum: [ dbi, dbi2, config, atu, atu_dma, app, appl, elbi, mgmt, ctrl,
+ parf, cfg, link, ulreg, smu, mpu, apb, phy ]
num-lanes:
description: |
diff --git a/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml b/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml
index 30b6396d83c8..48ed227fc5b9 100644
--- a/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pci/toshiba,visconti-pcie.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Toshiba Visconti5 SoC PCIe Host Controller Device Tree Bindings
+title: Toshiba Visconti5 SoC PCIe Host Controller
maintainers:
- Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
diff --git a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
index cca395317a4c..24ddc2855b94 100644
--- a/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
+++ b/Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml
@@ -14,17 +14,23 @@ allOf:
properties:
compatible:
- const: xlnx,versal-cpm-host-1.00
+ enum:
+ - xlnx,versal-cpm-host-1.00
+ - xlnx,versal-cpm5-host
reg:
items:
- description: CPM system level control and status registers.
- description: Configuration space region and bridge registers.
+ - description: CPM5 control and status registers.
+ minItems: 2
reg-names:
items:
- const: cpm_slcr
- const: cfg
+ - const: cpm_csr
+ minItems: 2
interrupts:
maxItems: 1
@@ -95,4 +101,34 @@ examples:
interrupt-controller;
};
};
+
+ cpm5_pcie: pcie@fcdd0000 {
+ compatible = "xlnx,versal-cpm5-host";
+ device_type = "pci";
+ #address-cells = <3>;
+ #interrupt-cells = <1>;
+ #size-cells = <2>;
+ interrupts = <0 72 4>;
+ interrupt-parent = <&gic>;
+ interrupt-map-mask = <0 0 0 7>;
+ interrupt-map = <0 0 0 1 &pcie_intc_1 0>,
+ <0 0 0 2 &pcie_intc_1 1>,
+ <0 0 0 3 &pcie_intc_1 2>,
+ <0 0 0 4 &pcie_intc_1 3>;
+ bus-range = <0x00 0xff>;
+ ranges = <0x02000000 0x0 0xe0000000 0x0 0xe0000000 0x0 0x10000000>,
+ <0x43000000 0x80 0x00000000 0x80 0x00000000 0x0 0x80000000>;
+ msi-map = <0x0 &its_gic 0x0 0x10000>;
+ reg = <0x00 0xfcdd0000 0x00 0x1000>,
+ <0x06 0x00000000 0x00 0x1000000>,
+ <0x00 0xfce20000 0x00 0x1000000>;
+ reg-names = "cpm_slcr", "cfg", "cpm_csr";
+
+ pcie_intc_1: interrupt-controller {
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ };
+ };
+
};
diff --git a/Documentation/devicetree/bindings/peci/peci-aspeed.yaml b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
index 1e68a801a92a..b01e0c8b963d 100644
--- a/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
+++ b/Documentation/devicetree/bindings/peci/peci-aspeed.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/peci/peci-aspeed.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Aspeed PECI Bus Device Tree Bindings
+title: Aspeed PECI Bus
maintainers:
- Iwona Winiarska <iwona.winiarska@intel.com>
diff --git a/Documentation/devicetree/bindings/peci/peci-controller.yaml b/Documentation/devicetree/bindings/peci/peci-controller.yaml
index bbc3d3f3a929..d7853291b060 100644
--- a/Documentation/devicetree/bindings/peci/peci-controller.yaml
+++ b/Documentation/devicetree/bindings/peci/peci-controller.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/peci/peci-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Generic Device Tree Bindings for PECI
+title: Generic for PECI
maintainers:
- Iwona Winiarska <iwona.winiarska@intel.com>
diff --git a/Documentation/devicetree/bindings/perf/arm,ccn.yaml b/Documentation/devicetree/bindings/perf/arm,ccn.yaml
new file mode 100644
index 000000000000..0b0bb2091016
--- /dev/null
+++ b/Documentation/devicetree/bindings/perf/arm,ccn.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/perf/arm,ccn.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM CCN (Cache Coherent Network) Performance Monitors
+
+maintainers:
+ - Robin Murphy <robin.murphy@arm.com>
+
+properties:
+ compatible:
+ enum:
+ - arm,ccn-502
+ - arm,ccn-504
+ - arm,ccn-508
+ - arm,ccn-512
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ ccn@20000000 {
+ compatible = "arm,ccn-504";
+ reg = <0x20000000 0x1000000>;
+ interrupts = <0 181 4>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/perf/arm-ccn.txt b/Documentation/devicetree/bindings/perf/arm-ccn.txt
deleted file mode 100644
index 1c53b5aa3317..000000000000
--- a/Documentation/devicetree/bindings/perf/arm-ccn.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-* ARM CCN (Cache Coherent Network)
-
-Required properties:
-
-- compatible: (standard compatible string) should be one of:
- "arm,ccn-502"
- "arm,ccn-504"
- "arm,ccn-508"
- "arm,ccn-512"
-
-- reg: (standard registers property) physical address and size
- (16MB) of the configuration registers block
-
-- interrupts: (standard interrupt property) single interrupt
- generated by the control block
-
-Example:
-
- ccn@2000000000 {
- compatible = "arm,ccn-504";
- reg = <0x20 0x00000000 0 0x1000000>;
- interrupts = <0 181 4>;
- };
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
index 77606c899fe2..4fff091bd534 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun4i-a10-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun4i-a10-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 USB PHY Device Tree Bindings
+title: Allwinner A10 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
index 0fa4b32b097e..f557feca9763 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-a64-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun50i-a64-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A64 USB PHY Device Tree Bindings
+title: Allwinner A64 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
index e632140722a2..4480fdedd669 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun50i-h6-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun50i-h6-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner H6 USB PHY Device Tree Bindings
+title: Allwinner H6 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
index 5bad9b06e2e7..1563e3df3052 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun5i-a13-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun5i-a13-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A13 USB PHY Device Tree Bindings
+title: Allwinner A13 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
index 22636c9fdab8..dfb6a8993535 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-mipi-dphy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun6i-a31-mipi-dphy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 MIPI D-PHY Controller Device Tree Bindings
+title: Allwinner A31 MIPI D-PHY Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
index 922b4665e00d..4897a3d2fbc3 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun6i-a31-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun6i-a31-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 USB PHY Device Tree Bindings
+title: Allwinner A31 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
index a94019efc2f3..99de9c6889a0 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-a23-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A23 USB PHY Device Tree Bindings
+title: Allwinner A23 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
index 33f3ddc0492d..73438d84de50 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-a83t-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-a83t-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A83t USB PHY Device Tree Bindings
+title: Allwinner A83t USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
index e288450e0844..77539b4601c2 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-h3-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-h3-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner H3 USB PHY Device Tree Bindings
+title: Allwinner H3 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
index d947e50a49d2..2dd31630c13e 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-r40-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-r40-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner R40 USB PHY Device Tree Bindings
+title: Allwinner R40 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
index a2836c296cc4..395d33855d48 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun8i-v3s-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-v3s-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner V3s USB PHY Device Tree Bindings
+title: Allwinner V3s USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml b/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
index 2eb493fa64fd..bd9445f6f130 100644
--- a/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/allwinner,sun9i-a80-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/allwinner,sun9i-a80-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A80 USB PHY Device Tree Bindings
+title: Allwinner A80 USB PHY
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/phy/amlogic,axg-mipi-dphy.yaml b/Documentation/devicetree/bindings/phy/amlogic,axg-mipi-dphy.yaml
index be485f500887..5eddaed3d853 100644
--- a/Documentation/devicetree/bindings/phy/amlogic,axg-mipi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/amlogic,axg-mipi-dphy.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic AXG MIPI D-PHY
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/phy/amlogic,g12a-mipi-dphy-analog.yaml b/Documentation/devicetree/bindings/phy/amlogic,g12a-mipi-dphy-analog.yaml
new file mode 100644
index 000000000000..7aa0c05d6ce4
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/amlogic,g12a-mipi-dphy-analog.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/amlogic,g12a-mipi-dphy-analog.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic G12A MIPI analog PHY
+
+maintainers:
+ - Neil Armstrong <narmstrong@baylibre.com>
+
+properties:
+ compatible:
+ const: amlogic,g12a-mipi-dphy-analog
+
+ "#phy-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ phy@0 {
+ compatible = "amlogic,g12a-mipi-dphy-analog";
+ reg = <0x0 0xc>;
+ #phy-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson-axg-mipi-pcie-analog.yaml b/Documentation/devicetree/bindings/phy/amlogic,meson-axg-mipi-pcie-analog.yaml
index 4d01f3124e1c..a90fa1baadab 100644
--- a/Documentation/devicetree/bindings/phy/amlogic,meson-axg-mipi-pcie-analog.yaml
+++ b/Documentation/devicetree/bindings/phy/amlogic,meson-axg-mipi-pcie-analog.yaml
@@ -16,7 +16,7 @@ description: |+
- compatible: Should be the following:
"amlogic,meson-gx-hhi-sysctrl", "simple-mfd", "syscon"
- Refer to the the bindings described in
+ Refer to the bindings described in
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml
index 399ebde45409..f3a5fbabbbb5 100644
--- a/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb2-phy.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic G12A USB2 PHY
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb3-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb3-pcie-phy.yaml
index 453c083cf44c..868b4e6fde71 100644
--- a/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb3-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/amlogic,meson-g12a-usb3-pcie-phy.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic G12A USB3 + PCIE Combo PHY
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml
index 045699c65779..808e90b2465d 100644
--- a/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/brcm,cygnus-pcie-phy.yaml
@@ -32,6 +32,7 @@ properties:
patternProperties:
"^pcie-phy@[0-9]+$":
type: object
+ additionalProperties: false
description: >
PCIe PHY child nodes
diff --git a/Documentation/devicetree/bindings/phy/cdns,dphy-rx.yaml b/Documentation/devicetree/bindings/phy/cdns,dphy-rx.yaml
index 07be031d82e6..6fdd46ad5a78 100644
--- a/Documentation/devicetree/bindings/phy/cdns,dphy-rx.yaml
+++ b/Documentation/devicetree/bindings/phy/cdns,dphy-rx.yaml
@@ -4,10 +4,10 @@
$id: http://devicetree.org/schemas/phy/cdns,dphy-rx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Cadence DPHY Rx Device Tree Bindings
+title: Cadence DPHY Rx
maintainers:
- - Pratyush Yadav <p.yadav@ti.com>
+ - Pratyush Yadav <pratyush@kernel.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/phy/cdns,dphy.yaml b/Documentation/devicetree/bindings/phy/cdns,dphy.yaml
index c50629bd1b51..6cd9b0f388a4 100644
--- a/Documentation/devicetree/bindings/phy/cdns,dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/cdns,dphy.yaml
@@ -4,15 +4,16 @@
$id: http://devicetree.org/schemas/phy/cdns,dphy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Cadence DPHY Device Tree Bindings
+title: Cadence DPHY
maintainers:
- - Pratyush Yadav <p.yadav@ti.com>
+ - Pratyush Yadav <pratyush@kernel.org>
properties:
compatible:
- items:
- - const: cdns,dphy
+ enum:
+ - cdns,dphy
+ - ti,j721e-dphy
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml
index b6421eedece3..0af765ba2793 100644
--- a/Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/fsl,imx8-pcie-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Freescale i.MX8 SoC series PCIe PHY Device Tree Bindings
+title: Freescale i.MX8 SoC series PCIe PHY
maintainers:
- Richard Zhu <hongxing.zhu@nxp.com>
diff --git a/Documentation/devicetree/bindings/phy/fsl,imx8qm-lvds-phy.yaml b/Documentation/devicetree/bindings/phy/fsl,imx8qm-lvds-phy.yaml
new file mode 100644
index 000000000000..8767e48c71a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/fsl,imx8qm-lvds-phy.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/fsl,imx8qm-lvds-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mixel LVDS PHY for Freescale i.MX8qm SoC
+
+maintainers:
+ - Liu Ying <victor.liu@nxp.com>
+
+description: |
+ The Mixel LVDS PHY IP block is found on Freescale i.MX8qm SoC.
+ It converts two groups of four 7/10 bits of CMOS data into two
+ groups of four data lanes of LVDS data streams. A phase-locked
+ transmit clock is transmitted in parallel with each group of
+ data streams over a fifth LVDS link. Every cycle of the transmit
+ clock, 56/80 bits of input data are sampled and transmitted
+ through the two groups of LVDS data streams. Together with the
+ transmit clocks, the two groups of LVDS data streams form two
+ LVDS channels.
+
+ The Mixel LVDS PHY found on Freescale i.MX8qm SoC is controlled
+ by Control and Status Registers(CSR) module in the SoC. The CSR
+ module, as a system controller, contains the PHY's registers.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-lvds-phy
+ - mixel,28fdsoi-lvds-1250-8ch-tx-pll
+
+ "#phy-cells":
+ const: 1
+ description: |
+ Cell allows setting the LVDS channel index of the PHY.
+ Index 0 is for LVDS channel0 and index 1 is for LVDS channel1.
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - "#phy-cells"
+ - clocks
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ phy {
+ compatible = "fsl,imx8qm-lvds-phy";
+ #phy-cells = <1>;
+ clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_PHY>;
+ power-domains = <&pd IMX_SC_R_LVDS_0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml b/Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml
index c2e073e26190..20b79e2e8b82 100644
--- a/Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml
+++ b/Documentation/devicetree/bindings/phy/hisilicon,hi3660-usb3.yaml
@@ -41,20 +41,10 @@ additionalProperties: false
examples:
- |
- bus {
- #address-cells = <2>;
- #size-cells = <2>;
-
- usb3_otg_bc: usb3_otg_bc@ff200000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x0 0xff200000 0x0 0x1000>;
-
- usb-phy {
- compatible = "hisilicon,hi3660-usb-phy";
- #phy-cells = <0>;
- hisilicon,pericrg-syscon = <&crg_ctrl>;
- hisilicon,pctrl-syscon = <&pctrl>;
- hisilicon,eye-diagram-param = <0x22466e4>;
- };
- };
+ usb-phy {
+ compatible = "hisilicon,hi3660-usb-phy";
+ #phy-cells = <0>;
+ hisilicon,pericrg-syscon = <&crg_ctrl>;
+ hisilicon,pctrl-syscon = <&pctrl>;
+ hisilicon,eye-diagram-param = <0x22466e4>;
};
diff --git a/Documentation/devicetree/bindings/phy/hisilicon,hi3670-usb3.yaml b/Documentation/devicetree/bindings/phy/hisilicon,hi3670-usb3.yaml
index ebd78acfe2de..1cb00dbcd4c5 100644
--- a/Documentation/devicetree/bindings/phy/hisilicon,hi3670-usb3.yaml
+++ b/Documentation/devicetree/bindings/phy/hisilicon,hi3670-usb3.yaml
@@ -52,22 +52,12 @@ additionalProperties: false
examples:
- |
- bus {
- #address-cells = <2>;
- #size-cells = <2>;
-
- usb3_otg_bc: usb3_otg_bc@ff200000 {
- compatible = "syscon", "simple-mfd";
- reg = <0x0 0xff200000 0x0 0x1000>;
-
- usb_phy {
- compatible = "hisilicon,hi3670-usb-phy";
- #phy-cells = <0>;
- hisilicon,pericrg-syscon = <&crg_ctrl>;
- hisilicon,pctrl-syscon = <&pctrl>;
- hisilicon,sctrl-syscon = <&sctrl>;
- hisilicon,eye-diagram-param = <0xfdfee4>;
- hisilicon,tx-vboost-lvl = <0x5>;
- };
- };
+ usb-phy {
+ compatible = "hisilicon,hi3670-usb-phy";
+ #phy-cells = <0>;
+ hisilicon,pericrg-syscon = <&crg_ctrl>;
+ hisilicon,pctrl-syscon = <&pctrl>;
+ hisilicon,sctrl-syscon = <&sctrl>;
+ hisilicon,eye-diagram-param = <0xfdfee4>;
+ hisilicon,tx-vboost-lvl = <0x5>;
};
diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
index 954e67571dfd..ca818f83579b 100644
--- a/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/intel,lgm-emmc-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/intel,lgm-emmc-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Lightning Mountain(LGM) eMMC PHY Device Tree Bindings
+title: Intel Lightning Mountain(LGM) eMMC PHY
maintainers:
- Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@linux.intel.com>
diff --git a/Documentation/devicetree/bindings/phy/intel,lgm-usb-phy.yaml b/Documentation/devicetree/bindings/phy/intel,lgm-usb-phy.yaml
index ce62c0b94daf..653a12286637 100644
--- a/Documentation/devicetree/bindings/phy/intel,lgm-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/intel,lgm-usb-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/intel,lgm-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel LGM USB PHY Device Tree Bindings
+title: Intel LGM USB PHY
maintainers:
- Vadivel Murugan Ramuthevar <vadivel.muruganx.ramuthevar@linux.intel.com>
diff --git a/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml
index a97482179cf5..711de06bb0fc 100644
--- a/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/lantiq,vrx200-pcie-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Lantiq VRX200 and ARX300 PCIe PHY Device Tree Bindings
+title: Lantiq VRX200 and ARX300 PCIe PHY
maintainers:
- Martin Blumenstingl <martin.blumenstingl@googlemail.com>
diff --git a/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml
index 6e4d795f9b02..9c2a7345955d 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml
@@ -24,6 +24,10 @@ properties:
- enum:
- mediatek,mt7623-mipi-tx
- const: mediatek,mt2701-mipi-tx
+ - items:
+ - enum:
+ - mediatek,mt8365-mipi-tx
+ - const: mediatek,mt8183-mipi-tx
- const: mediatek,mt2701-mipi-tx
- const: mediatek,mt8173-mipi-tx
- const: mediatek,mt8183-mipi-tx
diff --git a/Documentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml
index 29d4123323c2..c2f4cb0b254a 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,mt7621-pci-phy.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/phy/mediatek,mt7621-pci-phy.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: Mediatek Mt7621 PCIe PHY Device Tree Bindings
+title: Mediatek Mt7621 PCIe PHY
maintainers:
- Sergio Paracuellos <sergio.paracuellos@gmail.com>
diff --git a/Documentation/devicetree/bindings/phy/mediatek,pcie-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,pcie-phy.yaml
new file mode 100644
index 000000000000..422750cc4121
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mediatek,pcie-phy.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mediatek,pcie-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek PCIe PHY
+
+maintainers:
+ - Jianjun Wang <jianjun.wang@mediatek.com>
+
+description: |
+ The PCIe PHY supports physical layer functionality for PCIe Gen3 port.
+
+properties:
+ compatible:
+ const: mediatek,mt8195-pcie-phy
+
+ reg:
+ maxItems: 1
+
+ reg-names:
+ items:
+ - const: sif
+
+ "#phy-cells":
+ const: 0
+
+ nvmem-cells:
+ maxItems: 7
+ description:
+ Phandles to nvmem cell that contains the efuse data, if unspecified,
+ default value is used.
+
+ nvmem-cell-names:
+ items:
+ - const: glb_intr
+ - const: tx_ln0_pmos
+ - const: tx_ln0_nmos
+ - const: rx_ln0
+ - const: tx_ln1_pmos
+ - const: tx_ln1_nmos
+ - const: rx_ln1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ phy@11e80000 {
+ compatible = "mediatek,mt8195-pcie-phy";
+ #phy-cells = <0>;
+ reg = <0x11e80000 0x10000>;
+ reg-names = "sif";
+ nvmem-cells = <&pciephy_glb_intr>,
+ <&pciephy_tx_ln0_pmos>,
+ <&pciephy_tx_ln0_nmos>,
+ <&pciephy_rx_ln0>,
+ <&pciephy_tx_ln1_pmos>,
+ <&pciephy_tx_ln1_nmos>,
+ <&pciephy_rx_ln1>;
+ nvmem-cell-names = "glb_intr", "tx_ln0_pmos",
+ "tx_ln0_nmos", "rx_ln0",
+ "tx_ln1_pmos", "tx_ln1_nmos",
+ "rx_ln1";
+ power-domains = <&spm 2>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
index 7b2e1bc119be..5613cc5106e3 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/phy/mediatek,tphy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek T-PHY Controller Device Tree Bindings
+title: MediaTek T-PHY Controller
maintainers:
- Chunfeng Yun <chunfeng.yun@mediatek.com>
@@ -82,9 +82,11 @@ properties:
- mediatek,mt8183-tphy
- mediatek,mt8186-tphy
- mediatek,mt8192-tphy
+ - mediatek,mt8365-tphy
- const: mediatek,generic-tphy-v2
- items:
- enum:
+ - mediatek,mt8188-tphy
- mediatek,mt8195-tphy
- const: mediatek,generic-tphy-v3
- const: mediatek,mt2701-u3phy
@@ -161,6 +163,7 @@ patternProperties:
- PHY_TYPE_USB3
- PHY_TYPE_PCIE
- PHY_TYPE_SATA
+ - PHY_TYPE_SGMII
nvmem-cells:
items:
@@ -216,6 +219,16 @@ patternProperties:
minimum: 1
maximum: 15
+ mediatek,pre-emphasis:
+ description:
+ The level of pre-emphasis which used to widen the eye opening and
+ boost eye swing, the unit step is about 4.16% increment; e.g. the
+ level 1 means amplitude increases about 4.16%, the level 2 is about
+ 8.3% etc. (U2 phy)
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 3
+
mediatek,bc12:
description:
Specify the flag to enable BC1.2 if support it
diff --git a/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
index 598fd2b95c29..a9e3139fd421 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,xsphy.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/phy/mediatek,xsphy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek XS-PHY Controller Device Tree Bindings
+title: MediaTek XS-PHY Controller
maintainers:
- Chunfeng Yun <chunfeng.yun@mediatek.com>
diff --git a/Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml b/Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml
new file mode 100644
index 000000000000..3169b873231e
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mscc,vsc7514-serdes.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mscc,vsc7514-serdes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microsemi Ocelot SerDes muxing
+
+maintainers:
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+ - UNGLinuxDriver@microchip.com
+
+description: |
+ On Microsemi Ocelot, there is a handful of registers in HSIO address
+ space for setting up the SerDes to switch port muxing.
+
+ A SerDes X can be "muxed" to work with switch port Y or Z for example.
+ One specific SerDes can also be used as a PCIe interface.
+
+ Hence, a SerDes represents an interface, be it an Ethernet or a PCIe one.
+
+ There are two kinds of SerDes: SERDES1G supports 10/100Mbps in
+ half/full-duplex and 1000Mbps in full-duplex mode while SERDES6G supports
+ 10/100Mbps in half/full-duplex and 1000/2500Mbps in full-duplex mode.
+
+ Also, SERDES6G number (aka "macro") 0 is the only interface supporting
+ QSGMII.
+
+ This is a child of the HSIO syscon ("mscc,ocelot-hsio", see
+ Documentation/devicetree/bindings/mips/mscc.txt) on the Microsemi Ocelot.
+
+properties:
+ compatible:
+ enum:
+ - mscc,vsc7514-serdes
+
+ "#phy-cells":
+ const: 2
+ description: |
+ The first number defines the input port to use for a given SerDes macro.
+ The second defines the macro to use. They are defined in
+ dt-bindings/phy/phy-ocelot-serdes.h
+
+required:
+ - compatible
+ - "#phy-cells"
+
+additionalProperties:
+ false
+
+examples:
+ - |
+ serdes: serdes {
+ compatible = "mscc,vsc7514-serdes";
+ #phy-cells = <2>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt
index c9f5c0caf8a9..70c813b0755f 100644
--- a/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt
+++ b/Documentation/devicetree/bindings/phy/mxs-usb-phy.txt
@@ -8,16 +8,17 @@ Required properties:
* "fsl,vf610-usbphy" for Vybrid vf610
* "fsl,imx6sx-usbphy" for imx6sx
* "fsl,imx7ulp-usbphy" for imx7ulp
+ * "fsl,imx8dxl-usbphy" for imx8dxl
"fsl,imx23-usbphy" is still a fallback for other strings
- reg: Should contain registers location and length
- interrupts: Should contain phy interrupt
- fsl,anatop: phandle for anatop register, it is only for imx6 SoC series
Optional properties:
-- fsl,tx-cal-45-dn-ohms: Integer [30-55]. Resistance (in ohms) of switchable
+- fsl,tx-cal-45-dn-ohms: Integer [35-54]. Resistance (in ohms) of switchable
high-speed trimming resistor connected in parallel with the 45 ohm resistor
that terminates the DN output signal. Default: 45
-- fsl,tx-cal-45-dp-ohms: Integer [30-55]. Resistance (in ohms) of switchable
+- fsl,tx-cal-45-dp-ohms: Integer [35-54]. Resistance (in ohms) of switchable
high-speed trimming resistor connected in parallel with the 45 ohm resistor
that terminates the DP output signal. Default: 45
- fsl,tx-d-cal: Integer [79-119]. Current trimming value (as a percentage) of
diff --git a/Documentation/devicetree/bindings/phy/phy-ocelot-serdes.txt b/Documentation/devicetree/bindings/phy/phy-ocelot-serdes.txt
deleted file mode 100644
index 332219860187..000000000000
--- a/Documentation/devicetree/bindings/phy/phy-ocelot-serdes.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-Microsemi Ocelot SerDes muxing driver
--------------------------------------
-
-On Microsemi Ocelot, there is a handful of registers in HSIO address
-space for setting up the SerDes to switch port muxing.
-
-A SerDes X can be "muxed" to work with switch port Y or Z for example.
-One specific SerDes can also be used as a PCIe interface.
-
-Hence, a SerDes represents an interface, be it an Ethernet or a PCIe one.
-
-There are two kinds of SerDes: SERDES1G supports 10/100Mbps in
-half/full-duplex and 1000Mbps in full-duplex mode while SERDES6G supports
-10/100Mbps in half/full-duplex and 1000/2500Mbps in full-duplex mode.
-
-Also, SERDES6G number (aka "macro") 0 is the only interface supporting
-QSGMII.
-
-This is a child of the HSIO syscon ("mscc,ocelot-hsio", see
-Documentation/devicetree/bindings/mips/mscc.txt) on the Microsemi Ocelot.
-
-Required properties:
-
-- compatible: should be "mscc,vsc7514-serdes"
-- #phy-cells : from the generic phy bindings, must be 2.
- The first number defines the input port to use for a given
- SerDes macro. The second defines the macro to use. They are
- defined in dt-bindings/phy/phy-ocelot-serdes.h
-
-Example:
-
- serdes: serdes {
- compatible = "mscc,vsc7514-serdes";
- #phy-cells = <2>;
- };
-
- ethernet {
- port1 {
- phy-handle = <&phy_foo>;
- /* Link SERDES1G_5 to port1 */
- phys = <&serdes 1 SERDES1G_5>;
- };
- };
diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
index 4b75289735eb..f71920082fa3 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
@@ -13,6 +13,7 @@ properties:
compatible:
enum:
- rockchip,px30-usb2phy
+ - rockchip,rk3128-usb2phy
- rockchip,rk3228-usb2phy
- rockchip,rk3308-usb2phy
- rockchip,rk3328-usb2phy
diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml b/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml
index f14454401419..8d8698412de0 100644
--- a/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-naneng-combphy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/phy-rockchip-naneng-combphy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip SoC Naneng Combo Phy Device Tree Bindings
+title: Rockchip SoC Naneng Combo Phy
maintainers:
- Heiko Stuebner <heiko@sntech.de>
diff --git a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
index dc287d428e49..801993813b18 100644
--- a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml
@@ -77,6 +77,8 @@ patternProperties:
connector:
type: object
$ref: /schemas/connector/usb-connector.yaml
+ unevaluatedProperties: false
+
properties:
vbus-supply: true
diff --git a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml
index 9a89d05efbda..4dc5205d893b 100644
--- a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.yaml
@@ -4,7 +4,7 @@
$id: "http://devicetree.org/schemas/phy/phy-tegra194-p2u.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: NVIDIA Tegra194 P2U binding
+title: NVIDIA Tegra194 & Tegra234 P2U binding
maintainers:
- Thierry Reding <treding@nvidia.com>
@@ -12,13 +12,17 @@ maintainers:
description: >
Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High
Speed) each interfacing with 12 and 8 P2U instances respectively.
+ Tegra234 has three PHY bricks namely HSIO, NVHS and GBE (Gigabit Ethernet)
+ each interfacing with 8, 8 and 8 P2U instances respectively.
A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE
- interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe
- lane.
+ interface and PHY of HSIO/NVHS/GBE bricks. Each P2U instance represents one
+ PCIe lane.
properties:
compatible:
- const: nvidia,tegra194-p2u
+ enum:
+ - nvidia,tegra194-p2u
+ - nvidia,tegra234-p2u
reg:
maxItems: 1
@@ -28,6 +32,11 @@ properties:
items:
- const: ctl
+ nvidia,skip-sz-protect-en:
+ description: Should be present if two PCIe retimers are present between
+ the root port and its immediate downstream device.
+ type: boolean
+
'#phy-cells':
const: 0
diff --git a/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
index a5850ff529f8..1e104ae76ee6 100644
--- a/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,edp-phy.yaml
@@ -19,6 +19,8 @@ properties:
enum:
- qcom,sc7280-edp-phy
- qcom,sc8180x-edp-phy
+ - qcom,sc8280xp-dp-phy
+ - qcom,sc8280xp-edp-phy
reg:
items:
@@ -41,6 +43,9 @@ properties:
"#phy-cells":
const: 0
+ vdda-phy-supply: true
+ vdda-pll-supply: true
+
required:
- compatible
- reg
@@ -65,5 +70,8 @@ examples:
#clock-cells = <1>;
#phy-cells = <0>;
+
+ vdda-phy-supply = <&vdd_a_edp_0_1p2>;
+ vdda-pll-supply = <&vdd_a_edp_0_0p9>;
};
...
diff --git a/Documentation/devicetree/bindings/phy/qcom,hdmi-phy-other.yaml b/Documentation/devicetree/bindings/phy/qcom,hdmi-phy-other.yaml
new file mode 100644
index 000000000000..fdb277edebeb
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,hdmi-phy-other.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/phy/qcom,hdmi-phy-other.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Adreno/Snapdragon HDMI phy
+
+maintainers:
+ - Rob Clark <robdclark@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - qcom,hdmi-phy-8660
+ - qcom,hdmi-phy-8960
+ - qcom,hdmi-phy-8974
+ - qcom,hdmi-phy-8084
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ items:
+ - const: hdmi_phy
+ - const: hdmi_pll
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ maxItems: 2
+
+ power-domains:
+ maxItems: 1
+
+ core-vdda-supply:
+ description: phandle to VDDA supply regulator
+
+ vddio-supply:
+ description: phandle to VDD I/O supply regulator
+
+ '#phy-cells':
+ const: 0
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,hdmi-phy-8660
+ - qcom,hdmi-phy-8960
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: slave_iface
+ vddio-supply: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,hdmi-phy-8084
+ - qcom,hdmi-phy-8974
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ items:
+ - const: iface
+ - const: alt_iface
+
+required:
+ - compatible
+ - clocks
+ - reg
+ - reg-names
+ - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ hdmi_phy: phy@4a00400 {
+ compatible = "qcom,hdmi-phy-8960";
+ reg-names = "hdmi_phy",
+ "hdmi_pll";
+ reg = <0x4a00400 0x60>,
+ <0x4a00500 0x100>;
+ #phy-cells = <0>;
+ power-domains = <&mmcc 1>;
+ clock-names = "slave_iface";
+ clocks = <&clk 21>;
+ core-vdda-supply = <&pm8921_hdmi_mvs>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom,hdmi-phy-qmp.yaml b/Documentation/devicetree/bindings/phy/qcom,hdmi-phy-qmp.yaml
new file mode 100644
index 000000000000..83fe4b39b56f
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,hdmi-phy-qmp.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/phy/qcom,hdmi-phy-qmp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Adreno/Snapdragon QMP HDMI phy
+
+maintainers:
+ - Rob Clark <robdclark@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - qcom,hdmi-phy-8996
+
+ reg:
+ maxItems: 6
+
+ reg-names:
+ items:
+ - const: hdmi_pll
+ - const: hdmi_tx_l0
+ - const: hdmi_tx_l1
+ - const: hdmi_tx_l2
+ - const: hdmi_tx_l3
+ - const: hdmi_phy
+
+ clocks:
+ minItems: 2
+ maxItems: 3
+
+ clock-names:
+ minItems: 2
+ items:
+ - const: iface
+ - const: ref
+ - const: xo
+
+ power-domains:
+ maxItems: 1
+
+ vcca-supply:
+ description: phandle to VCCA supply regulator
+
+ vddio-supply:
+ description: phandle to VDD I/O supply regulator
+
+ '#clock-cells':
+ const: 0
+
+ '#phy-cells':
+ const: 0
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - reg
+ - reg-names
+ - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ hdmi-phy@9a0600 {
+ compatible = "qcom,hdmi-phy-8996";
+ reg = <0x009a0600 0x1c4>,
+ <0x009a0a00 0x124>,
+ <0x009a0c00 0x124>,
+ <0x009a0e00 0x124>,
+ <0x009a1000 0x124>,
+ <0x009a1200 0x0c8>;
+ reg-names = "hdmi_pll",
+ "hdmi_tx_l0",
+ "hdmi_tx_l1",
+ "hdmi_tx_l2",
+ "hdmi_tx_l3",
+ "hdmi_phy";
+
+ clocks = <&mmcc 116>,
+ <&gcc 214>,
+ <&xo_board>;
+ clock-names = "iface",
+ "ref",
+ "xo";
+ #clock-cells = <0>;
+ #phy-cells = <0>;
+
+ vddio-supply = <&vreg_l12a_1p8>;
+ vcca-supply = <&vreg_l28a_0p925>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-pcie-phy.yaml
new file mode 100644
index 000000000000..4e710ef75523
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-pcie-phy.yaml
@@ -0,0 +1,189 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,msm8996-qmp-pcie-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QMP PHY controller (MSM8996 PCIe)
+
+maintainers:
+ - Vinod Koul <vkoul@kernel.org>
+
+description:
+ QMP PHY controller supports physical layer functionality for a number of
+ controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
+
+properties:
+ compatible:
+ const: qcom,msm8996-qmp-pcie-phy
+
+ reg:
+ items:
+ - description: serdes
+
+ "#address-cells":
+ enum: [ 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ ranges: true
+
+ clocks:
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ - const: ref
+
+ resets:
+ maxItems: 3
+
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+ - const: cfg
+
+ vdda-phy-supply: true
+
+ vdda-pll-supply: true
+
+ vddp-ref-clk-supply: true
+
+patternProperties:
+ "^phy@[0-9a-f]+$":
+ type: object
+ description: one child node per PHY provided by this block
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+
+ clocks:
+ items:
+ - description: PIPE clock
+
+ clock-names:
+ deprecated: true
+ items:
+ - enum:
+ - pipe0
+ - pipe1
+ - pipe2
+
+ resets:
+ items:
+ - description: PHY reset
+
+ reset-names:
+ deprecated: true
+ items:
+ - enum:
+ - lane0
+ - lane1
+ - lane2
+
+ "#clock-cells":
+ const: 0
+
+ clock-output-names:
+ maxItems: 1
+
+ "#phy-cells":
+ const: 0
+
+ required:
+ - reg
+ - clocks
+ - resets
+ - "#clock-cells"
+ - clock-output-names
+ - "#phy-cells"
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - vdda-phy-supply
+ - vdda-pll-supply
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8996.h>
+ pcie_phy: phy-wrapper@34000 {
+ compatible = "qcom,msm8996-qmp-pcie-phy";
+ reg = <0x34000 0x488>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x34000 0x4000>;
+
+ clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
+ <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>,
+ <&gcc GCC_PCIE_CLKREF_CLK>;
+ clock-names = "aux", "cfg_ahb", "ref";
+
+ resets = <&gcc GCC_PCIE_PHY_BCR>,
+ <&gcc GCC_PCIE_PHY_COM_BCR>,
+ <&gcc GCC_PCIE_PHY_COM_NOCSR_BCR>;
+ reset-names = "phy", "common", "cfg";
+
+ vdda-phy-supply = <&vreg_l28a_0p925>;
+ vdda-pll-supply = <&vreg_l12a_1p8>;
+
+ pciephy_0: phy@1000 {
+ reg = <0x1000 0x130>,
+ <0x1200 0x200>,
+ <0x1400 0x1dc>;
+
+ clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
+ resets = <&gcc GCC_PCIE_0_PHY_BCR>;
+
+ #clock-cells = <0>;
+ clock-output-names = "pcie_0_pipe_clk_src";
+
+ #phy-cells = <0>;
+ };
+
+ pciephy_1: phy@2000 {
+ reg = <0x2000 0x130>,
+ <0x2200 0x200>,
+ <0x2400 0x1dc>;
+
+ clocks = <&gcc GCC_PCIE_1_PIPE_CLK>;
+ resets = <&gcc GCC_PCIE_1_PHY_BCR>;
+
+ #clock-cells = <0>;
+ clock-output-names = "pcie_1_pipe_clk_src";
+
+ #phy-cells = <0>;
+ };
+
+ pciephy_2: phy@3000 {
+ reg = <0x3000 0x130>,
+ <0x3200 0x200>,
+ <0x3400 0x1dc>;
+
+ clocks = <&gcc GCC_PCIE_2_PIPE_CLK>;
+ resets = <&gcc GCC_PCIE_2_PHY_BCR>;
+
+ #clock-cells = <0>;
+ clock-output-names = "pcie_2_pipe_clk_src";
+
+ #phy-cells = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-pcie-phy.yaml
new file mode 100644
index 000000000000..324ad7d03a38
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-pcie-phy.yaml
@@ -0,0 +1,296 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,qmp-pcie-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QMP PHY controller (PCIe)
+
+maintainers:
+ - Vinod Koul <vkoul@kernel.org>
+
+description:
+ QMP PHY controller supports physical layer functionality for a number of
+ controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
+
+properties:
+ compatible:
+ enum:
+ - qcom,ipq6018-qmp-pcie-phy
+ - qcom,ipq8074-qmp-gen3-pcie-phy
+ - qcom,ipq8074-qmp-pcie-phy
+ - qcom,msm8998-qmp-pcie-phy
+ - qcom,sc8180x-qmp-pcie-phy
+ - qcom,sdm845-qhp-pcie-phy
+ - qcom,sdm845-qmp-pcie-phy
+ - qcom,sdx55-qmp-pcie-phy
+ - qcom,sm8250-qmp-gen3x1-pcie-phy
+ - qcom,sm8250-qmp-gen3x2-pcie-phy
+ - qcom,sm8250-qmp-modem-pcie-phy
+ - qcom,sm8450-qmp-gen3x1-pcie-phy
+ - qcom,sm8450-qmp-gen4x2-pcie-phy
+
+ reg:
+ items:
+ - description: serdes
+
+ "#address-cells":
+ enum: [ 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ ranges: true
+
+ clocks:
+ minItems: 2
+ maxItems: 4
+
+ clock-names:
+ minItems: 2
+ maxItems: 4
+
+ resets:
+ minItems: 1
+ maxItems: 2
+
+ reset-names:
+ minItems: 1
+ maxItems: 2
+
+ vdda-phy-supply: true
+
+ vdda-pll-supply: true
+
+ vddp-ref-clk-supply: true
+
+patternProperties:
+ "^phy@[0-9a-f]+$":
+ type: object
+ description: single PHY-provider child node
+ properties:
+ reg:
+ minItems: 3
+ maxItems: 6
+
+ clocks:
+ items:
+ - description: PIPE clock
+
+ clock-names:
+ deprecated: true
+ items:
+ - const: pipe0
+
+ "#clock-cells":
+ const: 0
+
+ clock-output-names:
+ maxItems: 1
+
+ "#phy-cells":
+ const: 0
+
+ required:
+ - reg
+ - clocks
+ - "#clock-cells"
+ - clock-output-names
+ - "#phy-cells"
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8998-qmp-pcie-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ - const: ref
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+ required:
+ - vdda-phy-supply
+ - vdda-pll-supply
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq6018-qmp-pcie-phy
+ - qcom,ipq8074-qmp-gen3-pcie-phy
+ - qcom,ipq8074-qmp-pcie-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8180x-qmp-pcie-phy
+ - qcom,sdm845-qhp-pcie-phy
+ - qcom,sdm845-qmp-pcie-phy
+ - qcom,sdx55-qmp-pcie-phy
+ - qcom,sm8250-qmp-gen3x1-pcie-phy
+ - qcom,sm8250-qmp-gen3x2-pcie-phy
+ - qcom,sm8250-qmp-modem-pcie-phy
+ - qcom,sm8450-qmp-gen3x1-pcie-phy
+ - qcom,sm8450-qmp-gen4x2-pcie-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 4
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ - const: ref
+ - const: refgen
+ resets:
+ maxItems: 1
+ reset-names:
+ items:
+ - const: phy
+ required:
+ - vdda-phy-supply
+ - vdda-pll-supply
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8250-qmp-gen3x2-pcie-phy
+ - qcom,sm8250-qmp-modem-pcie-phy
+ - qcom,sm8450-qmp-gen4x2-pcie-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX lane 1
+ - description: RX lane 1
+ - description: PCS
+ - description: TX lane 2
+ - description: RX lane 2
+ - description: PCS_MISC
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8180x-qmp-pcie-phy
+ - qcom,sdm845-qmp-pcie-phy
+ - qcom,sdx55-qmp-pcie-phy
+ - qcom,sm8250-qmp-gen3x1-pcie-phy
+ - qcom,sm8450-qmp-gen3x1-pcie-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+ - description: PCS_MISC
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq6018-qmp-pcie-phy
+ - qcom,ipq8074-qmp-pcie-phy
+ - qcom,msm8998-qmp-pcie-phy
+ - qcom,sdm845-qhp-pcie-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sm8250.h>
+ phy-wrapper@1c0e000 {
+ compatible = "qcom,sm8250-qmp-gen3x2-pcie-phy";
+ reg = <0x01c0e000 0x1c0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x01c0e000 0x1000>;
+
+ clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
+ <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
+ <&gcc GCC_PCIE_WIGIG_CLKREF_EN>,
+ <&gcc GCC_PCIE1_PHY_REFGEN_CLK>;
+ clock-names = "aux", "cfg_ahb", "ref", "refgen";
+
+ resets = <&gcc GCC_PCIE_1_PHY_BCR>;
+ reset-names = "phy";
+
+ vdda-phy-supply = <&vreg_l10c_0p88>;
+ vdda-pll-supply = <&vreg_l6b_1p2>;
+
+ phy@200 {
+ reg = <0x200 0x170>,
+ <0x400 0x200>,
+ <0xa00 0x1f0>,
+ <0x600 0x170>,
+ <0x800 0x200>,
+ <0xe00 0xf4>;
+
+ clocks = <&gcc GCC_PCIE_1_PIPE_CLK>;
+
+ #clock-cells = <0>;
+ clock-output-names = "pcie_1_pipe_clk";
+
+ #phy-cells = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
deleted file mode 100644
index 8b850c5ab116..000000000000
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-phy.yaml
+++ /dev/null
@@ -1,500 +0,0 @@
-# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-
-%YAML 1.2
----
-$id: "http://devicetree.org/schemas/phy/qcom,qmp-phy.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-
-title: Qualcomm QMP PHY controller
-
-maintainers:
- - Vinod Koul <vkoul@kernel.org>
-
-description:
- QMP phy controller supports physical layer functionality for a number of
- controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
-
-properties:
- compatible:
- enum:
- - qcom,ipq6018-qmp-pcie-phy
- - qcom,ipq6018-qmp-usb3-phy
- - qcom,ipq8074-qmp-pcie-phy
- - qcom,ipq8074-qmp-usb3-phy
- - qcom,msm8996-qmp-pcie-phy
- - qcom,msm8996-qmp-ufs-phy
- - qcom,msm8996-qmp-usb3-phy
- - qcom,msm8998-qmp-pcie-phy
- - qcom,msm8998-qmp-ufs-phy
- - qcom,msm8998-qmp-usb3-phy
- - qcom,qcm2290-qmp-usb3-phy
- - qcom,sc7180-qmp-usb3-phy
- - qcom,sc8180x-qmp-pcie-phy
- - qcom,sc8180x-qmp-ufs-phy
- - qcom,sc8180x-qmp-usb3-phy
- - qcom,sc8280xp-qmp-ufs-phy
- - qcom,sdm845-qhp-pcie-phy
- - qcom,sdm845-qmp-pcie-phy
- - qcom,sdm845-qmp-ufs-phy
- - qcom,sdm845-qmp-usb3-phy
- - qcom,sdm845-qmp-usb3-uni-phy
- - qcom,sm6115-qmp-ufs-phy
- - qcom,sm6350-qmp-ufs-phy
- - qcom,sm8150-qmp-ufs-phy
- - qcom,sm8150-qmp-usb3-phy
- - qcom,sm8150-qmp-usb3-uni-phy
- - qcom,sm8250-qmp-ufs-phy
- - qcom,sm8250-qmp-gen3x1-pcie-phy
- - qcom,sm8250-qmp-gen3x2-pcie-phy
- - qcom,sm8250-qmp-modem-pcie-phy
- - qcom,sm8250-qmp-usb3-phy
- - qcom,sm8250-qmp-usb3-uni-phy
- - qcom,sm8350-qmp-ufs-phy
- - qcom,sm8350-qmp-usb3-phy
- - qcom,sm8350-qmp-usb3-uni-phy
- - qcom,sm8450-qmp-gen3x1-pcie-phy
- - qcom,sm8450-qmp-gen4x2-pcie-phy
- - qcom,sm8450-qmp-ufs-phy
- - qcom,sm8450-qmp-usb3-phy
- - qcom,sdx55-qmp-pcie-phy
- - qcom,sdx55-qmp-usb3-uni-phy
- - qcom,sdx65-qmp-usb3-uni-phy
-
- reg:
- minItems: 1
- items:
- - description: Address and length of PHY's common serdes block.
- - description: Address and length of PHY's DP_COM control block.
-
- "#clock-cells":
- enum: [ 1, 2 ]
-
- "#address-cells":
- enum: [ 1, 2 ]
-
- "#size-cells":
- enum: [ 1, 2 ]
-
- ranges: true
-
- clocks:
- minItems: 1
- maxItems: 4
-
- clock-names:
- minItems: 1
- maxItems: 4
-
- resets:
- minItems: 1
- maxItems: 3
-
- reset-names:
- minItems: 1
- maxItems: 3
-
- vdda-phy-supply:
- description:
- Phandle to a regulator supply to PHY core block.
-
- vdda-pll-supply:
- description:
- Phandle to 1.8V regulator supply to PHY refclk pll block.
-
- vddp-ref-clk-supply:
- description:
- Phandle to a regulator supply to any specific refclk pll block.
-
-#Required nodes:
-patternProperties:
- "^phy@[0-9a-f]+$":
- type: object
- description:
- Each device node of QMP phy is required to have as many child nodes as
- the number of lanes the PHY has.
-
-required:
- - compatible
- - reg
- - "#clock-cells"
- - "#address-cells"
- - "#size-cells"
- - ranges
- - clocks
- - clock-names
- - resets
- - reset-names
-
-additionalProperties: false
-
-allOf:
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,sdm845-qmp-usb3-uni-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: Phy config clock.
- - description: 19.2 MHz ref clk.
- - description: Phy common block aux clock.
- clock-names:
- items:
- - const: aux
- - const: cfg_ahb
- - const: ref
- - const: com_aux
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,sdx55-qmp-usb3-uni-phy
- - qcom,sdx65-qmp-usb3-uni-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: Phy config clock.
- - description: 19.2 MHz ref clk.
- clock-names:
- items:
- - const: aux
- - const: cfg_ahb
- - const: ref
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,msm8996-qmp-pcie-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: Phy config clock.
- - description: 19.2 MHz ref clk.
- clock-names:
- items:
- - const: aux
- - const: cfg_ahb
- - const: ref
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- - description: phy's ahb cfg block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- - const: cfg
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,ipq8074-qmp-usb3-phy
- - qcom,msm8996-qmp-usb3-phy
- - qcom,msm8998-qmp-pcie-phy
- - qcom,msm8998-qmp-usb3-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: Phy config clock.
- - description: 19.2 MHz ref clk.
- clock-names:
- items:
- - const: aux
- - const: cfg_ahb
- - const: ref
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,msm8996-qmp-ufs-phy
- then:
- properties:
- clocks:
- items:
- - description: 19.2 MHz ref clk.
- clock-names:
- items:
- - const: ref
- resets:
- items:
- - description: PHY reset in the UFS controller.
- reset-names:
- items:
- - const: ufsphy
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,msm8998-qmp-ufs-phy
- - qcom,sdm845-qmp-ufs-phy
- - qcom,sm6350-qmp-ufs-phy
- - qcom,sm8150-qmp-ufs-phy
- - qcom,sm8250-qmp-ufs-phy
- - qcom,sc8180x-qmp-ufs-phy
- - qcom,sc8280xp-qmp-ufs-phy
- then:
- properties:
- clocks:
- items:
- - description: 19.2 MHz ref clk.
- - description: Phy reference aux clock.
- clock-names:
- items:
- - const: ref
- - const: ref_aux
- resets:
- items:
- - description: PHY reset in the UFS controller.
- reset-names:
- items:
- - const: ufsphy
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,ipq6018-qmp-pcie-phy
- - qcom,ipq8074-qmp-pcie-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: Phy config clock.
- clock-names:
- items:
- - const: aux
- - const: cfg_ahb
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,sc8180x-qmp-pcie-phy
- - qcom,sdm845-qhp-pcie-phy
- - qcom,sdm845-qmp-pcie-phy
- - qcom,sdx55-qmp-pcie-phy
- - qcom,sm8250-qmp-gen3x1-pcie-phy
- - qcom,sm8250-qmp-gen3x2-pcie-phy
- - qcom,sm8250-qmp-modem-pcie-phy
- - qcom,sm8450-qmp-gen3x1-pcie-phy
- - qcom,sm8450-qmp-gen4x2-pcie-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: Phy config clock.
- - description: 19.2 MHz ref clk.
- - description: Phy refgen clk.
- clock-names:
- items:
- - const: aux
- - const: cfg_ahb
- - const: ref
- - const: refgen
- resets:
- items:
- - description: reset of phy block.
- reset-names:
- items:
- - const: phy
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,sm8150-qmp-usb3-phy
- - qcom,sm8150-qmp-usb3-uni-phy
- - qcom,sm8250-qmp-usb3-uni-phy
- - qcom,sm8350-qmp-usb3-uni-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: 19.2 MHz ref clk source.
- - description: 19.2 MHz ref clk.
- - description: Phy common block aux clock.
- clock-names:
- items:
- - const: aux
- - const: ref_clk_src
- - const: ref
- - const: com_aux
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,sm8250-qmp-usb3-phy
- - qcom,sm8350-qmp-usb3-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy aux clock.
- - description: 19.2 MHz ref clk.
- - description: Phy common block aux clock.
- clock-names:
- items:
- - const: aux
- - const: ref_clk_src
- - const: com_aux
- resets:
- items:
- - description: reset of phy block.
- - description: phy common block reset.
- reset-names:
- items:
- - const: phy
- - const: common
- required:
- - vdda-phy-supply
- - vdda-pll-supply
- - if:
- properties:
- compatible:
- contains:
- enum:
- - qcom,qcm2290-qmp-usb3-phy
- then:
- properties:
- clocks:
- items:
- - description: Phy config clock.
- - description: 19.2 MHz ref clk.
- - description: Phy common block aux clock.
- clock-names:
- items:
- - const: cfg_ahb
- - const: ref
- - const: com_aux
- resets:
- items:
- - description: phy_phy reset.
- - description: reset of phy block.
- reset-names:
- items:
- - const: phy_phy
- - const: phy
- required:
- - vdda-phy-supply
- - vdda-pll-supply
-
-examples:
- - |
- #include <dt-bindings/clock/qcom,gcc-sdm845.h>
- usb_2_qmpphy: phy-wrapper@88eb000 {
- compatible = "qcom,sdm845-qmp-usb3-uni-phy";
- reg = <0x088eb000 0x18c>;
- #clock-cells = <1>;
- #address-cells = <1>;
- #size-cells = <1>;
- ranges = <0x0 0x088eb000 0x2000>;
-
- clocks = <&gcc GCC_USB3_SEC_PHY_AUX_CLK >,
- <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
- <&gcc GCC_USB3_SEC_CLKREF_CLK>,
- <&gcc GCC_USB3_SEC_PHY_COM_AUX_CLK>;
- clock-names = "aux", "cfg_ahb", "ref", "com_aux";
-
- resets = <&gcc GCC_USB3PHY_PHY_SEC_BCR>,
- <&gcc GCC_USB3_PHY_SEC_BCR>;
- reset-names = "phy", "common";
-
- vdda-phy-supply = <&vdda_usb2_ss_1p2>;
- vdda-pll-supply = <&vdda_usb2_ss_core>;
-
- usb_2_ssphy: phy@200 {
- reg = <0x200 0x128>,
- <0x400 0x1fc>,
- <0x800 0x218>,
- <0x600 0x70>;
- #clock-cells = <0>;
- #phy-cells = <0>;
- clocks = <&gcc GCC_USB3_SEC_PHY_PIPE_CLK>;
- clock-names = "pipe0";
- clock-output-names = "usb3_uni_phy_pipe_clk_src";
- };
- };
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml
new file mode 100644
index 000000000000..815c375d0f7b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-ufs-phy.yaml
@@ -0,0 +1,240 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,qmp-ufs-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QMP PHY controller (UFS)
+
+maintainers:
+ - Vinod Koul <vkoul@kernel.org>
+
+description:
+ QMP PHY controller supports physical layer functionality for a number of
+ controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
+
+properties:
+ compatible:
+ enum:
+ - qcom,msm8996-qmp-ufs-phy
+ - qcom,msm8998-qmp-ufs-phy
+ - qcom,sc8180x-qmp-ufs-phy
+ - qcom,sc8280xp-qmp-ufs-phy
+ - qcom,sdm845-qmp-ufs-phy
+ - qcom,sm6115-qmp-ufs-phy
+ - qcom,sm6350-qmp-ufs-phy
+ - qcom,sm8150-qmp-ufs-phy
+ - qcom,sm8250-qmp-ufs-phy
+ - qcom,sm8350-qmp-ufs-phy
+ - qcom,sm8450-qmp-ufs-phy
+
+ reg:
+ items:
+ - description: serdes
+
+ "#address-cells":
+ enum: [ 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ ranges: true
+
+ clocks:
+ minItems: 1
+ maxItems: 3
+
+ clock-names:
+ minItems: 1
+ maxItems: 3
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: ufsphy
+
+ vdda-phy-supply: true
+
+ vdda-pll-supply: true
+
+ vddp-ref-clk-supply: true
+
+patternProperties:
+ "^phy@[0-9a-f]+$":
+ type: object
+ description: single PHY-provider child node
+ properties:
+ reg:
+ minItems: 3
+ maxItems: 6
+
+ "#phy-cells":
+ const: 0
+
+ required:
+ - reg
+ - "#phy-cells"
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - vdda-phy-supply
+ - vdda-pll-supply
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8996-qmp-ufs-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 1
+ clock-names:
+ items:
+ - const: ref
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8998-qmp-ufs-phy
+ - qcom,sc8180x-qmp-ufs-phy
+ - qcom,sc8280xp-qmp-ufs-phy
+ - qcom,sdm845-qmp-ufs-phy
+ - qcom,sm6115-qmp-ufs-phy
+ - qcom,sm6350-qmp-ufs-phy
+ - qcom,sm8150-qmp-ufs-phy
+ - qcom,sm8250-qmp-ufs-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 2
+ clock-names:
+ items:
+ - const: ref
+ - const: ref_aux
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8450-qmp-ufs-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: ref
+ - const: ref_aux
+ - const: qref
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8998-qmp-ufs-phy
+ - qcom,sc8280xp-qmp-ufs-phy
+ - qcom,sdm845-qmp-ufs-phy
+ - qcom,sm6350-qmp-ufs-phy
+ - qcom,sm8150-qmp-ufs-phy
+ - qcom,sm8250-qmp-ufs-phy
+ - qcom,sm8350-qmp-ufs-phy
+ - qcom,sm8450-qmp-ufs-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX lane 1
+ - description: RX lane 1
+ - description: PCS
+ - description: TX lane 2
+ - description: RX lane 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8180x-qmp-ufs-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+ - description: PCS_MISC
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8996-qmp-ufs-phy
+ - qcom,sm6115-qmp-ufs-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ phy-wrapper@1d87000 {
+ compatible = "qcom,sc8280xp-qmp-ufs-phy";
+ reg = <0x01d87000 0xe10>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x01d87000 0x1000>;
+
+ clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_UFS_PHY_PHY_AUX_CLK>;
+ clock-names = "ref", "ref_aux";
+
+ resets = <&ufs_mem_hc 0>;
+ reset-names = "ufsphy";
+
+ vdda-phy-supply = <&vreg_l6b>;
+ vdda-pll-supply = <&vreg_l3b>;
+
+ phy@400 {
+ reg = <0x400 0x108>,
+ <0x600 0x1e0>,
+ <0xc00 0x1dc>,
+ <0x800 0x108>,
+ <0xa00 0x1e0>;
+ #phy-cells = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml
new file mode 100644
index 000000000000..7acb4b7de7f9
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-usb-phy.yaml
@@ -0,0 +1,401 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,qmp-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QMP PHY controller (USB)
+
+maintainers:
+ - Vinod Koul <vkoul@kernel.org>
+
+description:
+ QMP PHY controller supports physical layer functionality for a number of
+ controllers on Qualcomm chipsets, such as, PCIe, UFS, and USB.
+
+properties:
+ compatible:
+ enum:
+ - qcom,ipq6018-qmp-usb3-phy
+ - qcom,ipq8074-qmp-usb3-phy
+ - qcom,msm8996-qmp-usb3-phy
+ - qcom,msm8998-qmp-usb3-phy
+ - qcom,qcm2290-qmp-usb3-phy
+ - qcom,sc7180-qmp-usb3-phy
+ - qcom,sc8180x-qmp-usb3-phy
+ - qcom,sc8280xp-qmp-usb3-uni-phy
+ - qcom,sdm845-qmp-usb3-phy
+ - qcom,sdm845-qmp-usb3-uni-phy
+ - qcom,sdx55-qmp-usb3-uni-phy
+ - qcom,sdx65-qmp-usb3-uni-phy
+ - qcom,sm8150-qmp-usb3-phy
+ - qcom,sm8150-qmp-usb3-uni-phy
+ - qcom,sm8250-qmp-usb3-phy
+ - qcom,sm8250-qmp-usb3-uni-phy
+ - qcom,sm8350-qmp-usb3-phy
+ - qcom,sm8350-qmp-usb3-uni-phy
+ - qcom,sm8450-qmp-usb3-phy
+
+ reg:
+ minItems: 1
+ items:
+ - description: serdes
+ - description: DP_COM
+
+ "#address-cells":
+ enum: [ 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ ranges: true
+
+ clocks:
+ minItems: 3
+ maxItems: 4
+
+ clock-names:
+ minItems: 3
+ maxItems: 4
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 2
+
+ reset-names:
+ maxItems: 2
+
+ vdda-phy-supply: true
+
+ vdda-pll-supply: true
+
+ vddp-ref-clk-supply: true
+
+patternProperties:
+ "^phy@[0-9a-f]+$":
+ type: object
+ description: single PHY-provider child node
+ properties:
+ reg:
+ minItems: 3
+ maxItems: 6
+
+ clocks:
+ items:
+ - description: PIPE clock
+
+ clock-names:
+ deprecated: true
+ items:
+ - const: pipe0
+
+ "#clock-cells":
+ const: 0
+
+ clock-output-names:
+ maxItems: 1
+
+ "#phy-cells":
+ const: 0
+
+ required:
+ - reg
+ - clocks
+ - "#clock-cells"
+ - clock-output-names
+ - "#phy-cells"
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+ - clocks
+ - clock-names
+ - resets
+ - reset-names
+ - vdda-phy-supply
+ - vdda-pll-supply
+
+additionalProperties: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc7180-qmp-usb3-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 4
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ - const: ref
+ - const: com_aux
+ resets:
+ maxItems: 1
+ reset-names:
+ items:
+ - const: phy
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sdm845-qmp-usb3-uni-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 4
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ - const: ref
+ - const: com_aux
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq8074-qmp-usb3-phy
+ - qcom,msm8996-qmp-usb3-phy
+ - qcom,msm8998-qmp-usb3-phy
+ - qcom,sdx55-qmp-usb3-uni-phy
+ - qcom,sdx65-qmp-usb3-uni-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: aux
+ - const: cfg_ahb
+ - const: ref
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8280xp-qmp-usb3-uni-phy
+ - qcom,sm8150-qmp-usb3-phy
+ - qcom,sm8150-qmp-usb3-uni-phy
+ - qcom,sm8250-qmp-usb3-uni-phy
+ - qcom,sm8350-qmp-usb3-uni-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 4
+ clock-names:
+ items:
+ - const: aux
+ - const: ref_clk_src
+ - const: ref
+ - const: com_aux
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sm8250-qmp-usb3-phy
+ - qcom,sm8350-qmp-usb3-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: aux
+ - const: ref_clk_src
+ - const: com_aux
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy
+ - const: common
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,qcm2290-qmp-usb3-phy
+ then:
+ properties:
+ clocks:
+ maxItems: 3
+ clock-names:
+ items:
+ - const: cfg_ahb
+ - const: ref
+ - const: com_aux
+ resets:
+ maxItems: 2
+ reset-names:
+ items:
+ - const: phy_phy
+ - const: phy
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8280xp-qmp-usb3-uni-phy
+ then:
+ required:
+ - power-domains
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sdm845-qmp-usb3-phy
+ - qcom,sm8150-qmp-usb3-phy
+ - qcom,sm8350-qmp-usb3-phy
+ - qcom,sm8450-qmp-usb3-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX lane 1
+ - description: RX lane 1
+ - description: PCS
+ - description: TX lane 2
+ - description: RX lane 2
+ - description: PCS_MISC
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8998-qmp-usb3-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX lane 1
+ - description: RX lane 1
+ - description: PCS
+ - description: TX lane 2
+ - description: RX lane 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq6018-qmp-usb3-phy
+ - qcom,ipq8074-qmp-usb3-phy
+ - qcom,qcm2290-qmp-usb3-phy
+ - qcom,sc7180-qmp-usb3-phy
+ - qcom,sc8180x-qmp-usb3-phy
+ - qcom,sdx55-qmp-usb3-uni-phy
+ - qcom,sdx65-qmp-usb3-uni-phy
+ - qcom,sm8150-qmp-usb3-uni-phy
+ - qcom,sm8250-qmp-usb3-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+ - description: PCS_MISC
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8996-qmp-usb3-phy
+ - qcom,sc8280xp-qmp-usb3-uni-phy
+ - qcom,sm8250-qmp-usb3-uni-phy
+ - qcom,sm8350-qmp-usb3-uni-phy
+ then:
+ patternProperties:
+ "^phy@[0-9a-f]+$":
+ properties:
+ reg:
+ items:
+ - description: TX
+ - description: RX
+ - description: PCS
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+ usb_2_qmpphy: phy-wrapper@88eb000 {
+ compatible = "qcom,sdm845-qmp-usb3-uni-phy";
+ reg = <0x088eb000 0x18c>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x088eb000 0x2000>;
+
+ clocks = <&gcc GCC_USB3_SEC_PHY_AUX_CLK >,
+ <&gcc GCC_USB_PHY_CFG_AHB2PHY_CLK>,
+ <&gcc GCC_USB3_SEC_CLKREF_CLK>,
+ <&gcc GCC_USB3_SEC_PHY_COM_AUX_CLK>;
+ clock-names = "aux", "cfg_ahb", "ref", "com_aux";
+
+ resets = <&gcc GCC_USB3PHY_PHY_SEC_BCR>,
+ <&gcc GCC_USB3_PHY_SEC_BCR>;
+ reset-names = "phy", "common";
+
+ vdda-phy-supply = <&vdda_usb2_ss_1p2>;
+ vdda-pll-supply = <&vdda_usb2_ss_core>;
+
+ usb_2_ssphy: phy@200 {
+ reg = <0x200 0x128>,
+ <0x400 0x1fc>,
+ <0x800 0x218>,
+ <0x600 0x70>;
+
+ clocks = <&gcc GCC_USB3_SEC_PHY_PIPE_CLK>;
+
+ #clock-cells = <0>;
+ clock-output-names = "usb3_uni_phy_pipe_clk_src";
+
+ #phy-cells = <0>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
index b078009ed509..97a7ecafbf85 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qmp-usb3-dp-phy.yaml
@@ -16,6 +16,7 @@ properties:
- qcom,sc7180-qmp-usb3-dp-phy
- qcom,sc7280-qmp-usb3-dp-phy
- qcom,sc8180x-qmp-usb3-dp-phy
+ - qcom,sc8280xp-qmp-usb43dp-phy
- qcom,sdm845-qmp-usb3-dp-phy
- qcom,sm8250-qmp-usb3-dp-phy
reg:
@@ -30,9 +31,6 @@ properties:
- const: dp_com
- const: dp
- "#clock-cells":
- enum: [ 1, 2 ]
-
"#address-cells":
enum: [ 1, 2 ]
@@ -55,6 +53,9 @@ properties:
- const: ref
- const: com_aux
+ power-domains:
+ maxItems: 1
+
resets:
items:
- description: reset of phy block.
@@ -81,6 +82,7 @@ properties:
patternProperties:
"^usb3-phy@[0-9a-f]+$":
type: object
+ additionalProperties: false
description:
The USB3 PHY.
@@ -99,6 +101,7 @@ patternProperties:
- description: pipe clock
clock-names:
+ deprecated: true
items:
- const: pipe0
@@ -115,12 +118,12 @@ patternProperties:
required:
- reg
- clocks
- - clock-names
- '#clock-cells'
- '#phy-cells'
"^dp-phy@[0-9a-f]+$":
type: object
+ additionalProperties: false
description:
The DP PHY.
@@ -147,7 +150,6 @@ patternProperties:
required:
- compatible
- reg
- - "#clock-cells"
- "#address-cells"
- "#size-cells"
- ranges
@@ -160,6 +162,17 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8280xp-qmp-usb43dp-phy
+ then:
+ required:
+ - power-domains
+
examples:
- |
#include <dt-bindings/clock/qcom,gcc-sdm845.h>
@@ -169,7 +182,6 @@ examples:
<0x088e8000 0x10>,
<0x088ea000 0x40>;
reg-names = "usb", "dp_com", "dp";
- #clock-cells = <1>;
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x088e9000 0x2000>;
@@ -197,7 +209,6 @@ examples:
#clock-cells = <0>;
#phy-cells = <0>;
clocks = <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
- clock-names = "pipe0";
clock-output-names = "usb3_phy_pipe_clk_src";
};
diff --git a/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
index d68ab49345b8..636ea430fbff 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
@@ -30,6 +30,7 @@ properties:
- items:
- enum:
- qcom,sc7180-qusb2-phy
+ - qcom,sdm670-qusb2-phy
- qcom,sdm845-qusb2-phy
- qcom,sm6350-qusb2-phy
- const: qcom,qusb2-v2-phy
diff --git a/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml b/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml
index 7a0e6a9854da..68e70961beb2 100644
--- a/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,usb-snps-femto-v2.yaml
@@ -20,6 +20,7 @@ properties:
- qcom,sc7280-usb-hs-phy
- qcom,sc8180x-usb-hs-phy
- qcom,sc8280xp-usb-hs-phy
+ - qcom,sm6375-usb-hs-phy
- qcom,sm8150-usb-hs-phy
- qcom,sm8250-usb-hs-phy
- qcom,sm8350-usb-hs-phy
@@ -53,6 +54,94 @@ properties:
vdda33-supply:
description: phandle to the regulator 3.3V supply node.
+ qcom,hs-disconnect-bp:
+ description:
+ This adjusts the voltage level for the threshold used to
+ detect a disconnect event at the host.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: -272
+ maximum: 2156
+
+ qcom,squelch-detector-bp:
+ description:
+ This adjusts the voltage level for the threshold used to
+ detect valid high-speed data.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: -2090
+ maximum: 1590
+
+ qcom,hs-amplitude-bp:
+ description:
+ This adjusts the high-speed DC level voltage.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: -660
+ maximum: 2670
+
+ qcom,pre-emphasis-duration-bp:
+ description:
+ This signal controls the duration for which the
+ HS pre-emphasis current is sourced onto DP<#> or DM<#>.
+ The HS Transmitter pre-emphasis duration is defined in terms of
+ unit amounts. One unit of pre-emphasis duration is approximately
+ 650 ps and is defined as 1X pre-emphasis duration.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: 10000
+ maximum: 20000
+
+ qcom,pre-emphasis-amplitude-bp:
+ description:
+ This signal controls the amount of current sourced to
+ DP<#> and DM<#> after a J-to-K or K-to-J transition.
+ The HS Transmitter pre-emphasis current is defined in terms of unit
+ amounts. One unit amount is approximately 2 mA and is defined as
+ 1X pre-emphasis current.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: 10000
+ maximum: 40000
+
+ qcom,hs-rise-fall-time-bp:
+ description:
+ This adjusts the rise/fall times of the high-speed waveform.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: -4100
+ maximum: 5430
+
+ qcom,hs-crossover-voltage-microvolt:
+ description:
+ This adjusts the voltage at which the DP<#> and DM<#>
+ signals cross while transmitting in HS mode.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: -31000
+ maximum: 28000
+
+ qcom,hs-output-impedance-micro-ohms:
+ description:
+ In some applications, there can be significant series resistance
+ on the D+ and D- paths between the transceiver and cable. This adjusts
+ the driver source impedance to compensate for added series
+ resistance on the USB. The hardware accepts only discrete values. The
+ value closest to the provided input will be chosen as the override value
+ for this param.
+ minimum: -2300000
+ maximum: 6100000
+
+ qcom,ls-fs-output-impedance-bp:
+ description:
+ This adjusts the low- and full-speed single-ended source
+ impedance while driving high. The following adjustment values are based
+ on nominal process, voltage, and temperature.
+ The hardware accepts only discrete values. The value closest to the
+ provided input will be chosen as the override value for this param.
+ minimum: -1053
+ maximum: 1310
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
deleted file mode 100644
index a3bd1c4499b7..000000000000
--- a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
+++ /dev/null
@@ -1,112 +0,0 @@
-* Renesas R-Car generation 2 USB PHY
-
-This file provides information on what the device node for the R-Car generation
-2 USB PHY contains.
-
-Required properties:
-- compatible: "renesas,usb-phy-r8a7742" if the device is a part of R8A7742 SoC.
- "renesas,usb-phy-r8a7743" if the device is a part of R8A7743 SoC.
- "renesas,usb-phy-r8a7744" if the device is a part of R8A7744 SoC.
- "renesas,usb-phy-r8a7745" if the device is a part of R8A7745 SoC.
- "renesas,usb-phy-r8a77470" if the device is a part of R8A77470 SoC.
- "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC.
- "renesas,usb-phy-r8a7791" if the device is a part of R8A7791 SoC.
- "renesas,usb-phy-r8a7794" if the device is a part of R8A7794 SoC.
- "renesas,rcar-gen2-usb-phy" for a generic R-Car Gen2 or
- RZ/G1 compatible device.
-
- When compatible with the generic version, nodes must list the
- SoC-specific version corresponding to the platform first
- followed by the generic version.
-
-- reg: offset and length of the register block.
-- #address-cells: number of address cells for the USB channel subnodes, must
- be <1>.
-- #size-cells: number of size cells for the USB channel subnodes, must be <0>.
-- clocks: clock phandle and specifier pair.
-- clock-names: string, clock input name, must be "usbhs".
-
-The USB PHY device tree node should have the subnodes corresponding to the USB
-channels. These subnodes must contain the following properties:
-- reg: the USB controller selector; see the table below for the values.
-- #phy-cells: see phy-bindings.txt in the same directory, must be <1>.
-
-The phandle's argument in the PHY specifier is the USB controller selector for
-the USB channel other than r8a77470 SoC; see the selector meanings below:
-
-+-----------+---------------+---------------+
-|\ Selector | | |
-+ --------- + 0 | 1 |
-| Channel \| | |
-+-----------+---------------+---------------+
-| 0 | PCI EHCI/OHCI | HS-USB |
-| 2 | PCI EHCI/OHCI | xHCI |
-+-----------+---------------+---------------+
-
-For r8a77470 SoC;see the selector meaning below:
-
-+-----------+---------------+---------------+
-|\ Selector | | |
-+ --------- + 0 | 1 |
-| Channel \| | |
-+-----------+---------------+---------------+
-| 0 | EHCI/OHCI | HS-USB |
-+-----------+---------------+---------------+
-
-Example (Lager board):
-
- usb-phy@e6590100 {
- compatible = "renesas,usb-phy-r8a7790", "renesas,rcar-gen2-usb-phy";
- reg = <0 0xe6590100 0 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&cpg CPG_MOD 704>;
- clock-names = "usbhs";
- power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
- resets = <&cpg 704>;
-
- usb0: usb-channel@0 {
- reg = <0>;
- #phy-cells = <1>;
- };
- usb2: usb-channel@2 {
- reg = <2>;
- #phy-cells = <1>;
- };
- };
-
-Example (iWave RZ/G1C sbc):
-
- usbphy0: usb-phy0@e6590100 {
- compatible = "renesas,usb-phy-r8a77470",
- "renesas,rcar-gen2-usb-phy";
- reg = <0 0xe6590100 0 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&cpg CPG_MOD 704>;
- clock-names = "usbhs";
- power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
- resets = <&cpg 704>;
-
- usb0: usb-channel@0 {
- reg = <0>;
- #phy-cells = <1>;
- };
- };
-
- usbphy1: usb-phy@e6598100 {
- compatible = "renesas,usb-phy-r8a77470",
- "renesas,rcar-gen2-usb-phy";
- reg = <0 0xe6598100 0 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&cpg CPG_MOD 706>;
- clock-names = "usbhs";
- power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
- resets = <&cpg 706>;
-
- usb1: usb-channel@0 {
- reg = <0>;
- #phy-cells = <1>;
- };
- };
diff --git a/Documentation/devicetree/bindings/phy/renesas,rcar-gen2-usb-phy.yaml b/Documentation/devicetree/bindings/phy/renesas,rcar-gen2-usb-phy.yaml
new file mode 100644
index 000000000000..afc09f39b02b
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/renesas,rcar-gen2-usb-phy.yaml
@@ -0,0 +1,123 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/renesas,rcar-gen2-usb-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car Gen2 USB PHY
+
+maintainers:
+ - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - renesas,usb-phy-r8a7742 # RZ/G1H
+ - renesas,usb-phy-r8a7743 # RZ/G1M
+ - renesas,usb-phy-r8a7744 # RZ/G1N
+ - renesas,usb-phy-r8a7745 # RZ/G1E
+ - renesas,usb-phy-r8a77470 # RZ/G1C
+ - renesas,usb-phy-r8a7790 # R-Car H2
+ - renesas,usb-phy-r8a7791 # R-Car M2-W
+ - renesas,usb-phy-r8a7794 # R-Car E2
+ - const: renesas,rcar-gen2-usb-phy # R-Car Gen2 or RZ/G1
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: usbhs
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+patternProperties:
+ "^usb-phy@[02]$":
+ type: object
+ description: Subnode corresponding to a USB channel.
+
+ properties:
+ reg:
+ description: FIXME RZ/G1C supports channel 0 only
+ enum: [0, 2]
+
+ '#phy-cells':
+ description: |
+ The phandle's argument in the PHY specifier is the USB controller
+ selector for the USB channel.
+ For RZ/G1C:
+ - 0 for EHCI/OHCI
+ - 1 for HS-USB
+ For all other SoCS:
+ - 0 for PCI EHCI/OHCI
+ - 1 for HS-USB (channel 0) or xHCI (channel 2)
+ const: 1
+
+ required:
+ - reg
+ - '#phy-cells'
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - '#address-cells'
+ - '#size-cells'
+ - clocks
+ - clock-names
+ - resets
+ - power-domains
+ - usb-phy@0
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: renesas,usb-phy-r8a77470
+then:
+ properties:
+ usb-phy@2: false
+else:
+ required:
+ - usb-phy@2
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+ #include <dt-bindings/power/r8a7790-sysc.h>
+ usb-phy-controller@e6590100 {
+ compatible = "renesas,usb-phy-r8a7790", "renesas,rcar-gen2-usb-phy";
+ reg = <0xe6590100 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&cpg CPG_MOD 704>;
+ clock-names = "usbhs";
+ power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+ resets = <&cpg 704>;
+
+ usb0: usb-phy@0 {
+ reg = <0>;
+ #phy-cells = <1>;
+ };
+ usb2: usb-phy@2 {
+ reg = <2>;
+ #phy-cells = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml b/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml
index b8483f9edbfc..fe57c5373d18 100644
--- a/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/renesas,usb3-phy.yaml
@@ -34,7 +34,7 @@ properties:
# must not be 0.
minItems: 2
items:
- - const: usb3-if # The funcional clock
+ - const: usb3-if # The functional clock
- const: usb3s_clk # The usb3's external clock
- const: usb_extal # The usb2's external clock
diff --git a/Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.yaml b/Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.yaml
new file mode 100644
index 000000000000..9f2d8d2cc7a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/rockchip,pcie3-phy.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/rockchip,pcie3-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip PCIe v3 phy
+
+maintainers:
+ - Heiko Stuebner <heiko@sntech.de>
+
+properties:
+ compatible:
+ enum:
+ - rockchip,rk3568-pcie3-phy
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 3
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: refclk_m
+ - const: refclk_n
+ - const: pclk
+
+ data-lanes:
+ description: which lanes (by position) should be mapped to which
+ controller (value). 0 means lane disabled, higher value means used.
+ (controller-number +1 )
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 2
+ maxItems: 16
+ items:
+ minimum: 0
+ maximum: 16
+
+ "#phy-cells":
+ const: 0
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: phy
+
+ rockchip,phy-grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to the syscon managing the phy "general register files"
+
+ rockchip,pipe-grf:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to the syscon managing the pipe "general register files"
+
+required:
+ - compatible
+ - reg
+ - rockchip,phy-grf
+ - "#phy-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/rk3568-cru.h>
+ pcie30phy: phy@fe8c0000 {
+ compatible = "rockchip,rk3568-pcie3-phy";
+ reg = <0xfe8c0000 0x20000>;
+ #phy-cells = <0>;
+ clocks = <&pmucru CLK_PCIE30PHY_REF_M>,
+ <&pmucru CLK_PCIE30PHY_REF_N>,
+ <&cru PCLK_PCIE30PHY>;
+ clock-names = "refclk_m", "refclk_n", "pclk";
+ resets = <&cru SRST_PCIE30PHY>;
+ reset-names = "phy";
+ rockchip,phy-grf = <&pcie30_phy_grf>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml b/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml
index 8a3032a3bd73..5c35e5ceec0b 100644
--- a/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/rockchip,px30-dsi-dphy.yaml
@@ -18,6 +18,7 @@ properties:
- rockchip,px30-dsi-dphy
- rockchip,rk3128-dsi-dphy
- rockchip,rk3368-dsi-dphy
+ - rockchip,rk3568-dsi-dphy
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml b/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
index bb4a2e4b8ab0..0e6505e9da50 100644
--- a/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
+++ b/Documentation/devicetree/bindings/phy/rockchip-inno-csi-dphy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/rockchip-inno-csi-dphy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip SoC MIPI RX0 D-PHY Device Tree Bindings
+title: Rockchip SoC MIPI RX0 D-PHY
maintainers:
- Heiko Stuebner <heiko@sntech.de>
@@ -20,6 +20,7 @@ properties:
- rockchip,rk1808-csi-dphy
- rockchip,rk3326-csi-dphy
- rockchip,rk3368-csi-dphy
+ - rockchip,rk3568-csi-dphy
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml b/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml
index 7d888d358823..5114e99b0035 100644
--- a/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml
+++ b/Documentation/devicetree/bindings/phy/rockchip-mipi-dphy-rx0.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/rockchip-mipi-dphy-rx0.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip SoC MIPI RX0 D-PHY Device Tree Bindings
+title: Rockchip SoC MIPI RX0 D-PHY
maintainers:
- Helen Koike <helen.koike@collabora.com>
diff --git a/Documentation/devicetree/bindings/phy/samsung,exynos-hdmi-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,exynos-hdmi-phy.yaml
index 3e5f035de2e9..efc679c385ab 100644
--- a/Documentation/devicetree/bindings/phy/samsung,exynos-hdmi-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,exynos-hdmi-phy.yaml
@@ -8,7 +8,6 @@ title: Samsung Exynos SoC HDMI PHY
maintainers:
- Inki Dae <inki.dae@samsung.com>
- - Joonyoung Shim <jy0922.shim@samsung.com>
- Seung-Woo Kim <sw0312.kim@samsung.com>
- Kyungmin Park <kyungmin.park@samsung.com>
- Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/Documentation/devicetree/bindings/phy/samsung,exynos-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,exynos-pcie-phy.yaml
index ac0af40be52d..28e299a9609d 100644
--- a/Documentation/devicetree/bindings/phy/samsung,exynos-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,exynos-pcie-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/samsung,exynos-pcie-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Samsung SoC series PCIe PHY Device Tree Bindings
+title: Samsung SoC series PCIe PHY
maintainers:
- Marek Szyprowski <m.szyprowski@samsung.com>
diff --git a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
index f6ed1a005e7a..c5dbb91ac402 100644
--- a/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/samsung,ufs-phy.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/samsung,ufs-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Samsung SoC series UFS PHY Device Tree Bindings
+title: Samsung SoC series UFS PHY
maintainers:
- Alim Akhtar <alim.akhtar@samsung.com>
@@ -17,6 +17,7 @@ properties:
enum:
- samsung,exynos7-ufs-phy
- samsung,exynosautov9-ufs-phy
+ - tesla,fsd-ufs-phy
reg:
maxItems: 1
@@ -26,23 +27,25 @@ properties:
- const: phy-pma
clocks:
- items:
- - description: PLL reference clock
- - description: symbol clock for input symbol ( rx0-ch0 symbol clock)
- - description: symbol clock for input symbol ( rx1-ch1 symbol clock)
- - description: symbol clock for output symbol ( tx0 symbol clock)
+ minItems: 1
+ maxItems: 4
clock-names:
- items:
- - const: ref_clk
- - const: rx1_symbol_clk
- - const: rx0_symbol_clk
- - const: tx0_symbol_clk
+ minItems: 1
+ maxItems: 4
samsung,pmu-syscon:
- $ref: '/schemas/types.yaml#/definitions/phandle'
- description: phandle for PMU system controller interface, used to
- control pmu registers bits for ufs m-phy
+ $ref: '/schemas/types.yaml#/definitions/phandle-array'
+ maxItems: 1
+ items:
+ minItems: 1
+ items:
+ - description: phandle for PMU system controller interface, used to
+ control pmu registers bits for ufs m-phy
+ - description: offset of the pmu control register
+ description:
+ It can be phandle/offset pair. The second cell which can represent an
+ offset is optional.
required:
- "#phy-cells"
@@ -53,6 +56,39 @@ required:
- clock-names
- samsung,pmu-syscon
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos7-ufs-phy
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: PLL reference clock
+ - description: symbol clock for input symbol (rx0-ch0 symbol clock)
+ - description: symbol clock for input symbol (rx1-ch1 symbol clock)
+ - description: symbol clock for output symbol (tx0 symbol clock)
+
+ clock-names:
+ items:
+ - const: ref_clk
+ - const: rx1_symbol_clk
+ - const: rx0_symbol_clk
+ - const: tx0_symbol_clk
+
+ else:
+ properties:
+ clocks:
+ items:
+ - description: PLL reference clock
+
+ clock-names:
+ items:
+ - const: ref_clk
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/phy/sunplus,sp7021-usb2-phy.yaml b/Documentation/devicetree/bindings/phy/sunplus,sp7021-usb2-phy.yaml
new file mode 100644
index 000000000000..069d422775bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/sunplus,sp7021-usb2-phy.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/phy/sunplus,sp7021-usb2-phy.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Sunplus SP7021 USB 2.0 PHY Controller
+
+maintainers:
+ - Vincent Shih <vincent.sunplus@gmail.com>
+
+properties:
+ compatible:
+ const: sunplus,sp7021-usb2-phy
+
+ reg:
+ items:
+ - description: UPHY register region
+ - description: MOON4 register region
+
+ reg-names:
+ items:
+ - const: phy
+ - const: moon4
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ "#phy-cells":
+ const: 0
+
+ nvmem-cell-names:
+ description: names corresponding to the nvmem cells of disconnect voltage
+ const: disc_vol
+
+ nvmem-cells:
+ description: nvmem cell address of disconnect voltage
+ maxItems: 1
+
+ sunplus,disc-vol-addr-off:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: the otp address offset of disconnect voltage
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - clocks
+ - resets
+ - "#phy-cells"
+ - nvmem-cell-names
+ - nvmem-cells
+ - sunplus,disc-vol-addr-off
+
+additionalProperties: false
+
+examples:
+ - |
+ sp_uphy0: usb-phy@9c004a80 {
+ compatible = "sunplus,sp7021-usb2-phy";
+ reg = <0x9c004a80 0x80>, <0x9c000248 0x10>;
+ reg-names = "phy", "moon4";
+ clocks = <&clkc 0x3d>;
+ resets = <&rstc 0x2d>;
+ #phy-cells = <0>;
+ nvmem-cell-names = "disc_vol";
+ nvmem-cells = <&disc_vol>;
+ sunplus,disc-vol-addr-off = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/phy/ti,phy-gmii-sel.yaml b/Documentation/devicetree/bindings/phy/ti,phy-gmii-sel.yaml
index ff8a6d9eb153..da7cac537e15 100644
--- a/Documentation/devicetree/bindings/phy/ti,phy-gmii-sel.yaml
+++ b/Documentation/devicetree/bindings/phy/ti,phy-gmii-sel.yaml
@@ -53,12 +53,25 @@ properties:
- ti,am43xx-phy-gmii-sel
- ti,dm814-phy-gmii-sel
- ti,am654-phy-gmii-sel
+ - ti,j7200-cpsw5g-phy-gmii-sel
reg:
maxItems: 1
'#phy-cells': true
+ ti,qsgmii-main-ports:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: |
+ Required only for QSGMII mode. Array to select the port for
+ QSGMII main mode. Rest of the ports are selected as QSGMII_SUB
+ ports automatically. Any one of the 4 CPSW5G ports can act as the
+ main port with the rest of them being the QSGMII_SUB ports.
+ maxItems: 1
+ items:
+ minimum: 1
+ maximum: 4
+
allOf:
- if:
properties:
@@ -73,6 +86,18 @@ allOf:
'#phy-cells':
const: 1
description: CPSW port number (starting from 1)
+
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - ti,j7200-cpsw5g-phy-gmii-sel
+ then:
+ properties:
+ ti,qsgmii-main-ports: false
+
- if:
properties:
compatible:
@@ -97,7 +122,7 @@ additionalProperties: false
examples:
- |
- phy_gmii_sel: phy-gmii-sel@650 {
+ phy_gmii_sel: phy@650 {
compatible = "ti,am3352-phy-gmii-sel";
reg = <0x650 0x4>;
#phy-cells = <2>;
diff --git a/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml b/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml
index dcd63908aeae..2225925b6dad 100644
--- a/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml
+++ b/Documentation/devicetree/bindings/phy/ti,phy-j721e-wiz.yaml
@@ -16,19 +16,23 @@ properties:
- ti,j721e-wiz-16g
- ti,j721e-wiz-10g
- ti,am64-wiz-10g
+ - ti,j7200-wiz-10g
power-domains:
maxItems: 1
clocks:
- maxItems: 3
+ minItems: 3
+ maxItems: 4
description: clock-specifier to represent input to the WIZ
clock-names:
+ minItems: 3
items:
- const: fck
- const: core_ref_clk
- const: ext_ref_clk
+ - const: core_ref1_clk
num-lanes:
minimum: 1
@@ -79,10 +83,12 @@ properties:
refclk-dig:
type: object
+ additionalProperties: false
description: |
WIZ node should have subnode for refclk_dig to select the reference
clock source for the reference clock used in the PHY and PMA digital
logic.
+ deprecated: true
properties:
clocks:
minItems: 2
@@ -105,12 +111,19 @@ properties:
- assigned-clocks
- assigned-clock-parents
+ ti,scm:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: |
+ phandle to System Control Module for syscon regmap access.
+
patternProperties:
"^pll[0|1]-refclk$":
type: object
+ additionalProperties: false
description: |
WIZ node should have subnodes for each of the PLLs present in
the SERDES.
+ deprecated: true
properties:
clocks:
maxItems: 2
@@ -133,9 +146,11 @@ patternProperties:
"^cmn-refclk1?-dig-div$":
type: object
+ additionalProperties: false
description:
WIZ node should have subnodes for each of the PMA common refclock
provided by the SERDES.
+ deprecated: true
properties:
clocks:
maxItems: 1
@@ -170,6 +185,16 @@ required:
- "#reset-cells"
- ranges
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: ti,j7200-wiz-10g
+ then:
+ required:
+ - ti,scm
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml b/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml
index 79906519c652..cefbc8b53a83 100644
--- a/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml
+++ b/Documentation/devicetree/bindings/phy/xlnx,zynqmp-psgtr.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/phy/xlnx,zynqmp-psgtr.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx ZynqMP Gigabit Transceiver PHY Device Tree Bindings
+title: Xilinx ZynqMP Gigabit Transceiver PHY
maintainers:
- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sun4i-a10-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/allwinner,sun4i-a10-pinctrl.yaml
index bfce850c2035..1e3c8de6cae1 100644
--- a/Documentation/devicetree/bindings/pinctrl/allwinner,sun4i-a10-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sun4i-a10-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/allwinner,sun4i-a10-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Pin Controller Device Tree Bindings
+title: Allwinner A10 Pin Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -46,6 +46,7 @@ properties:
- allwinner,sun8i-v3s-pinctrl
- allwinner,sun9i-a80-pinctrl
- allwinner,sun9i-a80-r-pinctrl
+ - allwinner,sun20i-d1-pinctrl
- allwinner,sun50i-a64-pinctrl
- allwinner,sun50i-a64-r-pinctrl
- allwinner,sun50i-a100-pinctrl
@@ -80,9 +81,6 @@ properties:
- const: hosc
- const: losc
- resets:
- maxItems: 1
-
gpio-controller: true
interrupt-controller: true
gpio-line-names: true
@@ -127,20 +125,17 @@ patternProperties:
additionalProperties: false
- "^vcc-p[a-hlm]-supply$":
+ "^vcc-p[a-ilm]-supply$":
description:
Power supplies for pin banks.
required:
- "#gpio-cells"
- - "#interrupt-cells"
- compatible
- reg
- - interrupts
- clocks
- clock-names
- gpio-controller
- - interrupt-controller
allOf:
# FIXME: We should have the pin bank supplies here, but not a lot of
@@ -149,6 +144,19 @@ allOf:
- $ref: "pinctrl.yaml#"
- if:
+ not:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun50i-h616-r-pinctrl
+
+ then:
+ required:
+ - "#interrupt-cells"
+ - interrupts
+ - interrupt-controller
+
+ - if:
properties:
compatible:
enum:
@@ -175,6 +183,18 @@ allOf:
properties:
compatible:
enum:
+ - allwinner,sun20i-d1-pinctrl
+
+ then:
+ properties:
+ interrupts:
+ minItems: 6
+ maxItems: 6
+
+ - if:
+ properties:
+ compatible:
+ enum:
- allwinner,sun9i-a80-pinctrl
then:
diff --git a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
index c689bea7ce6e..d3a8911728d0 100644
--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
@@ -16,7 +16,7 @@ description: |+
- compatible: Should be one of the following:
"aspeed,ast2400-scu", "syscon", "simple-mfd"
- Refer to the the bindings described in
+ Refer to the bindings described in
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
diff --git a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml
index 9db904a528ee..5d2c1b1fb7fd 100644
--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2500-pinctrl.yaml
@@ -17,7 +17,7 @@ description: |+
"aspeed,ast2500-scu", "syscon", "simple-mfd"
"aspeed,g5-scu", "syscon", "simple-mfd"
- Refer to the the bindings described in
+ Refer to the bindings described in
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
diff --git a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
index 3666ac5b6518..e92686d2f062 100644
--- a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2600-pinctrl.yaml
@@ -16,7 +16,7 @@ description: |+
- compatible: Should be one of the following:
"aspeed,ast2600-scu", "syscon", "simple-mfd"
- Refer to the the bindings described in
+ Refer to the bindings described in
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
diff --git a/Documentation/devicetree/bindings/pinctrl/canaan,k210-fpioa.yaml b/Documentation/devicetree/bindings/pinctrl/canaan,k210-fpioa.yaml
index 533b4cfe33d2..a78cb2796001 100644
--- a/Documentation/devicetree/bindings/pinctrl/canaan,k210-fpioa.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/canaan,k210-fpioa.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/canaan,k210-fpioa.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Canaan Kendryte K210 FPIOA Device Tree Bindings
+title: Canaan Kendryte K210 FPIOA
maintainers:
- Damien Le Moal <damien.lemoal@wdc.com>
diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
new file mode 100644
index 000000000000..45ea565ce238
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,scu-pinctrl.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/fsl,scu-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Pinctrl bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+ This binding uses the i.MX common pinctrl binding.
+ (Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt)
+
+allOf:
+ - $ref: pinctrl.yaml#
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-iomuxc
+ - fsl,imx8qxp-iomuxc
+ - fsl,imx8dxl-iomuxc
+
+patternProperties:
+ 'grp$':
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+
+ properties:
+ fsl,pins:
+ description:
+ each entry consists of 3 integers and represents the pin ID, the mux value
+ and pad setting for the pin. The first 2 integers - pin_id and mux_val - are
+ specified using a PIN_FUNC_ID macro, which can be found in
+ <include/dt-bindings/pinctrl/pads-imx8qxp.h>. The last integer is
+ the pad setting value like pull-up on this pin. Please refer to the
+ appropriate i.MX8 Reference Manual for detailed pad CONFIG settings.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: |
+ "pin_id" indicates the pin ID
+ - description: |
+ "mux_val" indicates the mux value to be applied.
+ - description: |
+ "pad_setting" indicates the pad configuration value to be applied.
+
+ required:
+ - fsl,pins
+
+ additionalProperties: false
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ pinctrl {
+ compatible = "fsl,imx8qxp-iomuxc";
+
+ pinctrl_lpuart0: lpuart0grp {
+ fsl,pins = <
+ 111 0 0x06000020
+ 112 0 0x06000020
+ >;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-keembay.yaml b/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-keembay.yaml
index 5e99d79499b4..0bf5081da7b2 100644
--- a/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-keembay.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-keembay.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/intel,pinctrl-keembay.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Keem Bay pin controller Device Tree Bindings
+title: Intel Keem Bay pin controller
maintainers:
- Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
diff --git a/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-thunderbay.yaml b/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-thunderbay.yaml
index 0ec476248f21..172038279f4e 100644
--- a/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-thunderbay.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/intel,pinctrl-thunderbay.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/intel,pinctrl-thunderbay.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Thunder Bay pin controller Device Tree Bindings
+title: Intel Thunder Bay pin controller
maintainers:
- Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml
index 161088a8be33..33b5f79e741a 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt65xx-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT65xx Pin Controller Device Tree Bindings
+title: Mediatek MT65xx Pin Controller
maintainers:
- Sean Wang <sean.wang@kernel.org>
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
index e7601c0f5a69..9433b4d92eb8 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6779-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt6779-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT6779 Pin Controller Device Tree Bindings
+title: Mediatek MT6779 Pin Controller
maintainers:
- Andy Teng <andy.teng@mediatek.com>
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6797-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6797-pinctrl.yaml
index d42215f59afd..637a8386e23e 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt6797-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt6797-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt6797-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT6797 Pin Controller Device Tree Bindings
+title: Mediatek MT6797 Pin Controller
maintainers:
- Sean Wang <sean.wang@kernel.org>
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7622-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7622-pinctrl.yaml
index 78a0175cecc7..c9ea0cad489b 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7622-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7622-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7622-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT7622 Pin Controller Device Tree Bindings
+title: Mediatek MT7622 Pin Controller
maintainers:
- Sean Wang <sean.wang@kernel.org>
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml
index 4eadea55df10..28c656b5f746 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt7986-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt7986-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT7986 Pin Controller Device Tree Bindings
+title: Mediatek MT7986 Pin Controller
maintainers:
- Sean Wang <sean.wang@kernel.org>
diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
index 2d13a57b8961..0d2484056a0f 100644
--- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/mediatek,mt8183-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/mediatek,mt8183-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT8183 Pin Controller Device Tree Bindings
+title: Mediatek MT8183 Pin Controller
maintainers:
- Sean Wang <sean.wang@kernel.org>
diff --git a/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinctrl.yaml
index 47a56b83a610..7a11beb8f222 100644
--- a/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/nuvoton,wpcm450-pinctrl.yaml
@@ -152,7 +152,7 @@ examples:
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uid>, <&pinmux_uid>;
- uid {
+ button-uid {
label = "UID";
linux,code = <102>;
gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt
deleted file mode 100644
index e0e886b73527..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra124-dpaux-padctl.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-Device tree binding for NVIDIA Tegra DPAUX pad controller
-========================================================
-
-The Tegra Display Port Auxiliary (DPAUX) pad controller manages two pins
-which can be assigned to either the DPAUX channel or to an I2C
-controller.
-
-This document defines the device-specific binding for the DPAUX pad
-controller. Refer to pinctrl-bindings.txt in this directory for generic
-information about pin controller device tree bindings. Please refer to
-the binding document ../display/tegra/nvidia,tegra20-host1x.txt for more
-details on the DPAUX binding.
-
-Pin muxing:
------------
-
-Child nodes contain the pinmux configurations following the conventions
-from the pinctrl-bindings.txt document.
-
-Since only three configurations are possible, only three child nodes are
-needed to describe the pin mux'ing options for the DPAUX pads.
-Furthermore, given that the pad functions are only applicable to a
-single set of pads, the child nodes only need to describe the pad group
-the functions are being applied to rather than the individual pads.
-
-Required properties:
-- groups: Must be "dpaux-io"
-- function: Must be either "aux", "i2c" or "off".
-
-Example:
---------
-
- dpaux@545c0000 {
- ...
-
- state_dpaux_aux: pinmux-aux {
- groups = "dpaux-io";
- function = "aux";
- };
-
- state_dpaux_i2c: pinmux-i2c {
- groups = "dpaux-io";
- function = "i2c";
- };
-
- state_dpaux_off: pinmux-off {
- groups = "dpaux-io";
- function = "off";
- };
- };
-
- ...
-
- i2c@7000d100 {
- ...
- pinctrl-0 = <&state_dpaux_i2c>;
- pinctrl-1 = <&state_dpaux_off>;
- pinctrl-names = "default", "idle";
- };
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
index 8a2bb8608291..1eeb885ce0c6 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8186.yaml
@@ -28,6 +28,8 @@ properties:
gpio-ranges:
maxItems: 1
+ gpio-line-names: true
+
reg:
description: |
Physical address base for gpio base registers. There are 8 different GPIO
@@ -105,31 +107,8 @@ patternProperties:
drive-strength:
enum: [2, 4, 6, 8, 10, 12, 14, 16]
- mediatek,drive-strength-adv:
- description: |
- Describe the specific driving setup property.
- For I2C pins, the existing generic driving setup can only support
- 2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they
- can support 0.125/0.25/0.5/1mA adjustment. If we enable specific
- driving setup, the existing generic setup will be disabled.
- The specific driving setup is controlled by E1E0EN.
- When E1=0/E0=0, the strength is 0.125mA.
- When E1=0/E0=1, the strength is 0.25mA.
- When E1=1/E0=0, the strength is 0.5mA.
- When E1=1/E0=1, the strength is 1mA.
- EN is used to enable or disable the specific driving setup.
- Valid arguments are described as below:
- 0: (E1, E0, EN) = (0, 0, 0)
- 1: (E1, E0, EN) = (0, 0, 1)
- 2: (E1, E0, EN) = (0, 1, 0)
- 3: (E1, E0, EN) = (0, 1, 1)
- 4: (E1, E0, EN) = (1, 0, 0)
- 5: (E1, E0, EN) = (1, 0, 1)
- 6: (E1, E0, EN) = (1, 1, 0)
- 7: (E1, E0, EN) = (1, 1, 1)
- So the valid arguments are from 0 to 7.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2, 3, 4, 5, 6, 7]
+ drive-strength-microamp:
+ enum: [125, 250, 500, 1000]
bias-pull-down:
oneOf:
@@ -291,7 +270,7 @@ examples:
pinmux = <PINMUX_GPIO127__FUNC_SCL0>,
<PINMUX_GPIO128__FUNC_SDA0>;
bias-pull-up = <MTK_PULL_SET_RSEL_001>;
- mediatek,drive-strength-adv = <7>;
+ drive-strength-microamp = <1000>;
};
};
};
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml
index c90a132fbc79..e0e943e5b874 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8192.yaml
@@ -80,46 +80,30 @@ patternProperties:
dt-bindings/pinctrl/mt65xx.h. It can only support 2/4/6/8/10/12/14/16mA in mt8192.
enum: [2, 4, 6, 8, 10, 12, 14, 16]
- mediatek,drive-strength-adv:
- description: |
- Describe the specific driving setup property.
- For I2C pins, the existing generic driving setup can only support
- 2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they
- can support 0.125/0.25/0.5/1mA adjustment. If we enable specific
- driving setup, the existing generic setup will be disabled.
- The specific driving setup is controlled by E1E0EN.
- When E1=0/E0=0, the strength is 0.125mA.
- When E1=0/E0=1, the strength is 0.25mA.
- When E1=1/E0=0, the strength is 0.5mA.
- When E1=1/E0=1, the strength is 1mA.
- EN is used to enable or disable the specific driving setup.
- Valid arguments are described as below:
- 0: (E1, E0, EN) = (0, 0, 0)
- 1: (E1, E0, EN) = (0, 0, 1)
- 2: (E1, E0, EN) = (0, 1, 0)
- 3: (E1, E0, EN) = (0, 1, 1)
- 4: (E1, E0, EN) = (1, 0, 0)
- 5: (E1, E0, EN) = (1, 0, 1)
- 6: (E1, E0, EN) = (1, 1, 0)
- 7: (E1, E0, EN) = (1, 1, 1)
- So the valid arguments are from 0 to 7.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2, 3, 4, 5, 6, 7]
-
- mediatek,pull-up-adv:
- description: |
- Pull up settings for 2 pull resistors, R0 and R1. User can
- configure those special pins. Valid arguments are described as below:
- 0: (R1, R0) = (0, 0) which means R1 disabled and R0 disabled.
- 1: (R1, R0) = (0, 1) which means R1 disabled and R0 enabled.
- 2: (R1, R0) = (1, 0) which means R1 enabled and R0 disabled.
- 3: (R1, R0) = (1, 1) which means R1 enabled and R0 enabled.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2, 3]
-
- bias-pull-down: true
-
- bias-pull-up: true
+ drive-strength-microamp:
+ enum: [125, 250, 500, 1000]
+
+ bias-pull-down:
+ oneOf:
+ - type: boolean
+ description: normal pull down.
+ - enum: [100, 101, 102, 103]
+ description: PUPD/R1/R0 pull down type. See MTK_PUPD_SET_R1R0_
+ defines in dt-bindings/pinctrl/mt65xx.h.
+ - enum: [200, 201, 202, 203]
+ description: RSEL pull down type. See MTK_PULL_SET_RSEL_
+ defines in dt-bindings/pinctrl/mt65xx.h.
+
+ bias-pull-up:
+ oneOf:
+ - type: boolean
+ description: normal pull up.
+ - enum: [100, 101, 102, 103]
+ description: PUPD/R1/R0 pull up type. See MTK_PUPD_SET_R1R0_
+ defines in dt-bindings/pinctrl/mt65xx.h.
+ - enum: [200, 201, 202, 203]
+ description: RSEL pull up type. See MTK_PULL_SET_RSEL_
+ defines in dt-bindings/pinctrl/mt65xx.h.
bias-disable: true
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
index c5b755514c46..66fe17e9e4d3 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml
@@ -29,6 +29,8 @@ properties:
description: gpio valid number range.
maxItems: 1
+ gpio-line-names: true
+
reg:
description: |
Physical address base for gpio base registers. There are 8 GPIO
@@ -49,7 +51,7 @@ properties:
description: The interrupt outputs to sysirq.
maxItems: 1
- mediatek,rsel_resistance_in_si_unit:
+ mediatek,rsel-resistance-in-si-unit:
type: boolean
description: |
Identifying i2c pins pull up/down type which is RSEL. It can support
@@ -98,31 +100,8 @@ patternProperties:
drive-strength:
enum: [2, 4, 6, 8, 10, 12, 14, 16]
- mediatek,drive-strength-adv:
- description: |
- Describe the specific driving setup property.
- For I2C pins, the existing generic driving setup can only support
- 2/4/6/8/10/12/14/16mA driving. But in specific driving setup, they
- can support 0.125/0.25/0.5/1mA adjustment. If we enable specific
- driving setup, the existing generic setup will be disabled.
- The specific driving setup is controlled by E1E0EN.
- When E1=0/E0=0, the strength is 0.125mA.
- When E1=0/E0=1, the strength is 0.25mA.
- When E1=1/E0=0, the strength is 0.5mA.
- When E1=1/E0=1, the strength is 1mA.
- EN is used to enable or disable the specific driving setup.
- Valid arguments are described as below:
- 0: (E1, E0, EN) = (0, 0, 0)
- 1: (E1, E0, EN) = (0, 0, 1)
- 2: (E1, E0, EN) = (0, 1, 0)
- 3: (E1, E0, EN) = (0, 1, 1)
- 4: (E1, E0, EN) = (1, 0, 0)
- 5: (E1, E0, EN) = (1, 0, 1)
- 6: (E1, E0, EN) = (1, 1, 0)
- 7: (E1, E0, EN) = (1, 1, 1)
- So the valid arguments are from 0 to 7.
- $ref: /schemas/types.yaml#/definitions/uint32
- enum: [0, 1, 2, 3, 4, 5, 6, 7]
+ drive-strength-microamp:
+ enum: [125, 250, 500, 1000]
bias-pull-down:
oneOf:
@@ -142,7 +121,7 @@ patternProperties:
"MTK_PUPD_SET_R1R0_11" define in mt8195.
For pull down type is RSEL, it can add RSEL define & resistance
value(ohm) to set different resistance by identifying property
- "mediatek,rsel_resistance_in_si_unit".
+ "mediatek,rsel-resistance-in-si-unit".
It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001"
& "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011"
& "MTK_PULL_SET_RSEL_100" & "MTK_PULL_SET_RSEL_101"
@@ -161,7 +140,7 @@ patternProperties:
};
An example of using si unit resistance value(ohm):
&pio {
- mediatek,rsel_resistance_in_si_unit;
+ mediatek,rsel-resistance-in-si-unit;
}
pincontroller {
i2c0_pin {
@@ -190,7 +169,7 @@ patternProperties:
"MTK_PUPD_SET_R1R0_11" define in mt8195.
For pull up type is RSEL, it can add RSEL define & resistance
value(ohm) to set different resistance by identifying property
- "mediatek,rsel_resistance_in_si_unit".
+ "mediatek,rsel-resistance-in-si-unit".
It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001"
& "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011"
& "MTK_PULL_SET_RSEL_100" & "MTK_PULL_SET_RSEL_101"
@@ -209,7 +188,7 @@ patternProperties:
};
An example of using si unit resistance value(ohm):
&pio {
- mediatek,rsel_resistance_in_si_unit;
+ mediatek,rsel-resistance-in-si-unit;
}
pincontroller {
i2c0-pins {
@@ -302,7 +281,7 @@ examples:
pinmux = <PINMUX_GPIO8__FUNC_SDA0>,
<PINMUX_GPIO9__FUNC_SCL0>;
bias-disable;
- mediatek,drive-strength-adv = <7>;
+ drive-strength-microamp = <1000>;
};
};
};
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,ipq6018-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,ipq6018-pinctrl.yaml
index b83c7f476e19..931e5c190ead 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,ipq6018-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,ipq6018-pinctrl.yaml
@@ -144,7 +144,7 @@ examples:
#interrupt-cells = <2>;
gpio-controller;
#gpio-cells = <2>;
- gpio-ranges = <&tlmm 0 80>;
+ gpio-ranges = <&tlmm 0 0 80>;
serial3-pinmux {
pins = "gpio44", "gpio45";
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,msm8909-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,msm8909-tlmm.yaml
new file mode 100644
index 000000000000..e03530091478
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,msm8909-tlmm.yaml
@@ -0,0 +1,152 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,msm8909-tlmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. MSM8909 TLMM block
+
+maintainers:
+ - Stephan Gerhold <stephan@gerhold.net>
+
+description: |
+ This binding describes the Top Level Mode Multiplexer (TLMM) block found
+ in the MSM8909 platform.
+
+allOf:
+ - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,msm8909-tlmm
+
+ reg:
+ maxItems: 1
+
+ interrupts: true
+ interrupt-controller: true
+ '#interrupt-cells': true
+ gpio-controller: true
+ gpio-reserved-ranges: true
+ '#gpio-cells': true
+ gpio-ranges: true
+ wakeup-parent: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+patternProperties:
+ '-state$':
+ oneOf:
+ - $ref: "#/$defs/qcom-msm8909-tlmm-state"
+ - patternProperties:
+ ".*":
+ $ref: "#/$defs/qcom-msm8909-tlmm-state"
+
+$defs:
+ qcom-msm8909-tlmm-state:
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+ $ref: "qcom,tlmm-common.yaml#/$defs/qcom-tlmm-state"
+
+ properties:
+ pins:
+ description:
+ List of gpio pins affected by the properties specified in this
+ subnode.
+ items:
+ oneOf:
+ - pattern: "^gpio([0-9]|[1-9][0-9]|10[0-9]|11[0-7])$"
+ - enum: [ sdc1_clk, sdc1_cmd, sdc1_data, sdc2_clk, sdc2_cmd,
+ sdc2_data, qdsd_clk, qdsd_cmd, qdsd_data0, qdsd_data1,
+ qdsd_data2, qdsd_data3 ]
+ minItems: 1
+ maxItems: 16
+
+ function:
+ description:
+ Specify the alternative function to be configured for the specified
+ pins.
+ enum: [ adsp_ext, atest_bbrx0, atest_bbrx1, atest_char, atest_char0,
+ atest_char1, atest_char2, atest_char3, atest_combodac,
+ atest_gpsadc0, atest_gpsadc1, atest_wlan0, atest_wlan1,
+ bimc_dte0, bimc_dte1, blsp_i2c1, blsp_i2c2, blsp_i2c3,
+ blsp_i2c4, blsp_i2c5, blsp_i2c6, blsp_spi1, blsp_spi1_cs1,
+ blsp_spi1_cs2, blsp_spi1_cs3, blsp_spi2, blsp_spi2_cs1,
+ blsp_spi2_cs2, blsp_spi2_cs3, blsp_spi3, blsp_spi3_cs1,
+ blsp_spi3_cs2, blsp_spi3_cs3, blsp_spi4, blsp_spi5, blsp_spi6,
+ blsp_uart1, blsp_uart2, blsp_uim1, blsp_uim2, cam_mclk,
+ cci_async, cci_timer0, cci_timer1, cci_timer2, cdc_pdm0,
+ dbg_out, dmic0_clk, dmic0_data, ebi0_wrcdc, ebi2_a, ebi2_lcd,
+ ext_lpass, gcc_gp1_clk_a, gcc_gp1_clk_b, gcc_gp2_clk_a,
+ gcc_gp2_clk_b, gcc_gp3_clk_a, gcc_gp3_clk_b, gcc_plltest, gpio,
+ gsm0_tx, ldo_en, ldo_update, m_voc, mdp_vsync, modem_tsync,
+ nav_pps, nav_tsync, pa_indicator, pbs0, pbs1, pbs2,
+ pri_mi2s_data0_a, pri_mi2s_data0_b, pri_mi2s_data1_a,
+ pri_mi2s_data1_b, pri_mi2s_mclk_a, pri_mi2s_mclk_b,
+ pri_mi2s_sck_a, pri_mi2s_sck_b, pri_mi2s_ws_a, pri_mi2s_ws_b,
+ prng_rosc, pwr_crypto_enabled_a, pwr_crypto_enabled_b,
+ pwr_modem_enabled_a, pwr_modem_enabled_b, pwr_nav_enabled_a,
+ pwr_nav_enabled_b, qdss_cti_trig_in_a0, qdss_cti_trig_in_a1,
+ qdss_cti_trig_in_b0, qdss_cti_trig_in_b1, qdss_cti_trig_out_a0,
+ qdss_cti_trig_out_a1, qdss_cti_trig_out_b0,
+ qdss_cti_trig_out_b1, qdss_traceclk_a, qdss_tracectl_a,
+ qdss_tracedata_a, qdss_tracedata_b, sd_write, sec_mi2s,
+ smb_int, ssbi0, ssbi1, uim1_clk, uim1_data, uim1_present,
+ uim1_reset, uim2_clk, uim2_data, uim2_present, uim2_reset,
+ uim3_clk, uim3_data, uim3_present, uim3_reset, uim_batt,
+ wcss_bt, wcss_fm, wcss_wlan ]
+
+ bias-disable: true
+ bias-pull-down: true
+ bias-pull-up: true
+ drive-strength: true
+ input-enable: true
+ output-high: true
+ output-low: true
+
+ required:
+ - pins
+ - function
+
+ additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pinctrl@1000000 {
+ compatible = "qcom,msm8909-tlmm";
+ reg = <0x1000000 0x300000>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&tlmm 0 0 117>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ gpio-wo-subnode-state {
+ pins = "gpio1";
+ function = "gpio";
+ };
+
+ uart-w-subnodes-state {
+ rx {
+ pins = "gpio4";
+ function = "blsp_uart1";
+ bias-pull-up;
+ };
+
+ tx {
+ pins = "gpio5";
+ function = "blsp_uart1";
+ bias-disable;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
index 6f2efc3772cb..694898f382be 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
@@ -52,6 +52,7 @@ properties:
- qcom,pmi8998-gpio
- qcom,pmk8350-gpio
- qcom,pmm8155au-gpio
+ - qcom,pmp8074-gpio
- qcom,pmr735a-gpio
- qcom,pmr735b-gpio
- qcom,pms405-gpio
@@ -158,6 +159,7 @@ allOf:
compatible:
contains:
enum:
+ - qcom,pm8226-gpio
- qcom,pm8350b-gpio
- qcom,pm8950-gpio
then:
@@ -233,6 +235,7 @@ allOf:
- qcom,pm8150b-gpio
- qcom,pm8150l-gpio
- qcom,pmc8180c-gpio
+ - qcom,pmp8074-gpio
- qcom,pms405-gpio
then:
properties:
@@ -415,6 +418,7 @@ $defs:
- gpio1-gpio10 for pmi8994
- gpio1-gpio4 for pmk8350
- gpio1-gpio10 for pmm8155au
+ - gpio1-gpio12 for pmp8074 (holes on gpio1 and gpio12)
- gpio1-gpio4 for pmr735a
- gpio1-gpio4 for pmr735b
- gpio1-gpio12 for pms405 (holes on gpio1, gpio9
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-lpass-lpi-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-lpass-lpi-pinctrl.yaml
index d32ee32776e8..624e14f00790 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-lpass-lpi-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-lpass-lpi-pinctrl.yaml
@@ -8,7 +8,6 @@ title: Qualcomm Technologies, Inc. Low Power Audio SubSystem (LPASS)
Low Power Island (LPI) TLMM block
maintainers:
- - Srinivasa Rao Mandadapu <srivasam@codeaurora.org>
- Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
description: |
@@ -19,6 +18,11 @@ properties:
compatible:
const: qcom,sc7280-lpass-lpi-pinctrl
+ qcom,adsp-bypass-mode:
+ description:
+ Tells ADSP is in bypass mode.
+ type: boolean
+
reg:
minItems: 2
maxItems: 2
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-pinctrl.yaml
index 2d228164357c..2bd60c49a442 100644
--- a/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sc7280-pinctrl.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies, Inc. SC7280 TLMM block
maintainers:
- - Rajendra Nayak <rnayak@codeaurora.org>
+ - Bjorn Andersson <andersson@kernel.org>
description: |
This binding describes the Top Level Mode Multiplexer block found in the
diff --git a/Documentation/devicetree/bindings/pinctrl/qcom,sm6375-tlmm.yaml b/Documentation/devicetree/bindings/pinctrl/qcom,sm6375-tlmm.yaml
new file mode 100644
index 000000000000..3908807a8339
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/qcom,sm6375-tlmm.yaml
@@ -0,0 +1,158 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/qcom,sm6375-tlmm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. SM6375 TLMM block
+
+maintainers:
+ - Konrad Dybcio <konrad.dybcio@somainline.org>
+
+description: |
+ This binding describes the Top Level Mode Multiplexer (TLMM) block found
+ in the SM6375 platform.
+
+allOf:
+ - $ref: "pinctrl.yaml#"
+ - $ref: /schemas/pinctrl/qcom,tlmm-common.yaml#
+
+properties:
+ compatible:
+ const: qcom,sm6375-tlmm
+
+ reg:
+ maxItems: 1
+
+ interrupts: true
+ interrupt-controller: true
+ '#interrupt-cells': true
+ gpio-controller: true
+ gpio-reserved-ranges: true
+ '#gpio-cells': true
+ gpio-ranges: true
+ wakeup-parent: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+patternProperties:
+ '-state$':
+ oneOf:
+ - $ref: "#/$defs/qcom-sm6375-tlmm-state"
+ - patternProperties:
+ ".*":
+ $ref: "#/$defs/qcom-sm6375-tlmm-state"
+
+$defs:
+ qcom-sm6375-tlmm-state:
+ type: object
+ description:
+ Pinctrl node's client devices use subnodes for desired pin configuration.
+ Client device subnodes use below standard properties.
+ $ref: "qcom,tlmm-common.yaml#/$defs/qcom-tlmm-state"
+
+ properties:
+ pins:
+ description:
+ List of gpio pins affected by the properties specified in this
+ subnode.
+ items:
+ oneOf:
+ - pattern: "^gpio([0-9]|[1-9][0-9]|1[0-4][0-9]|15[0-6])$"
+ - enum: [ ufs_reset, sdc1_clk, sdc1_cmd, sdc1_data, sdc2_clk,
+ sdc2_cmd, sdc2_data ]
+ minItems: 1
+ maxItems: 36
+
+ function:
+ description:
+ Specify the alternative function to be configured for the specified
+ pins.
+
+ enum: [ adsp_ext, agera_pll, atest_char, atest_char0, atest_char1,
+ atest_char2, atest_char3, atest_tsens, atest_tsens2,
+ atest_usb1, atest_usb10, atest_usb11, atest_usb12,
+ atest_usb13, atest_usb2, atest_usb20, atest_usb21,
+ atest_usb22, atest_usb23, audio_ref, btfm_slimbus, cam_mclk,
+ cci_async, cci_i2c, cci_timer0, cci_timer1, cci_timer2,
+ cci_timer3, cci_timer4, cri_trng, dbg_out, ddr_bist,
+ ddr_pxi0, ddr_pxi1, ddr_pxi2, ddr_pxi3, dp_hot, edp_lcd,
+ gcc_gp1, gcc_gp2, gcc_gp3, gp_pdm0, gp_pdm1, gp_pdm2, gpio,
+ gps_tx, ibi_i3c, jitter_bist, ldo_en, ldo_update, lpass_ext,
+ m_voc, mclk, mdp_vsync, mdp_vsync0, mdp_vsync1, mdp_vsync2,
+ mdp_vsync3, mi2s_0, mi2s_1, mi2s_2, mss_lte, nav_gpio,
+ nav_pps, pa_indicator, phase_flag0, phase_flag1, phase_flag10,
+ phase_flag11, phase_flag12, phase_flag13, phase_flag14,
+ phase_flag15, phase_flag16, phase_flag17, phase_flag18,
+ phase_flag19, phase_flag2, phase_flag20, phase_flag21,
+ phase_flag22, phase_flag23, phase_flag24, phase_flag25,
+ phase_flag26, phase_flag27, phase_flag28, phase_flag29,
+ phase_flag3, phase_flag30, phase_flag31, phase_flag4,
+ phase_flag5, phase_flag6, phase_flag7, phase_flag8,
+ phase_flag9, pll_bist, pll_bypassnl, pll_clk, pll_reset,
+ prng_rosc0, prng_rosc1, prng_rosc2, prng_rosc3, qdss_cti,
+ qdss_gpio, qdss_gpio0, qdss_gpio1, qdss_gpio10, qdss_gpio11,
+ qdss_gpio12, qdss_gpio13, qdss_gpio14, qdss_gpio15,
+ qdss_gpio2, qdss_gpio3, qdss_gpio4, qdss_gpio5, qdss_gpio6,
+ qdss_gpio7, qdss_gpio8, qdss_gpio9, qlink0_enable,
+ qlink0_request, qlink0_wmss, qlink1_enable, qlink1_request,
+ qlink1_wmss, qup00, qup01, qup02, qup10, qup11_f1, qup11_f2,
+ qup12, qup13_f1, qup13_f2, qup14, sd_write, sdc1_tb, sdc2_tb,
+ sp_cmu, tgu_ch0, tgu_ch1, tgu_ch2, tgu_ch3, tsense_pwm1,
+ tsense_pwm2, uim1_clk, uim1_data, uim1_present, uim1_reset,
+ uim2_clk, uim2_data, uim2_present, uim2_reset, usb2phy_ac,
+ usb_phy, vfr_1, vsense_trigger, wlan1_adc0, wlan1_adc1,
+ wlan2_adc0, wlan2_adc1 ]
+
+
+ bias-disable: true
+ bias-pull-down: true
+ bias-pull-up: true
+ drive-strength: true
+ input-enable: true
+ output-high: true
+ output-low: true
+
+ required:
+ - pins
+ - function
+
+ additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ pinctrl@500000 {
+ compatible = "qcom,sm6375-tlmm";
+ reg = <0x00500000 0x800000>;
+ interrupts = <GIC_SPI 227 IRQ_TYPE_LEVEL_HIGH>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-ranges = <&tlmm 0 0 157>;
+
+ gpio-wo-subnode-state {
+ pins = "gpio1";
+ function = "gpio";
+ };
+
+ uart-w-subnodes-state {
+ rx {
+ pins = "gpio18";
+ function = "qup13_f2";
+ bias-pull-up;
+ };
+
+ tx {
+ pins = "gpio19";
+ function = "qup13_f2";
+ bias-disable;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml
index 2a57df75d832..4fc758fea7e6 100644
--- a/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/renesas,pfc.yaml
@@ -45,6 +45,7 @@ properties:
- renesas,pfc-r8a77995 # R-Car D3
- renesas,pfc-r8a779a0 # R-Car V3U
- renesas,pfc-r8a779f0 # R-Car S4-8
+ - renesas,pfc-r8a779g0 # R-Car V4H
- renesas,pfc-sh73a0 # SH-Mobile AG5
reg:
diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
index 52df1b146174..997b74639112 100644
--- a/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzg2l-pinctrl.yaml
@@ -47,6 +47,17 @@ properties:
gpio-ranges:
maxItems: 1
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+ description:
+ The first cell contains the global GPIO port index, constructed using the
+ RZG2L_GPIO() helper macro in <dt-bindings/pinctrl/rzg2l-pinctrl.h> and the
+ second cell is used to specify the flag.
+ E.g. "interrupts = <RZG2L_GPIO(43, 0) IRQ_TYPE_EDGE_FALLING>;" if P43_0 is
+ being used as an interrupt.
+
clocks:
maxItems: 1
@@ -110,6 +121,8 @@ required:
- gpio-controller
- '#gpio-cells'
- gpio-ranges
+ - interrupt-controller
+ - '#interrupt-cells'
- clocks
- power-domains
- resets
@@ -126,6 +139,8 @@ examples:
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&pinctrl 0 0 392>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
clocks = <&cpg CPG_MOD R9A07G044_GPIO_HCLK>;
resets = <&cpg R9A07G044_GPIO_RSTN>,
<&cpg R9A07G044_GPIO_PORT_RESETN>,
diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml
new file mode 100644
index 000000000000..eac6245db7dc
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml
@@ -0,0 +1,170 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/renesas,rzv2m-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/V2M combined Pin and GPIO controller
+
+maintainers:
+ - Geert Uytterhoeven <geert+renesas@glider.be>
+ - Phil Edworthy <phil.edworthy@renesas.com>
+
+description:
+ The Renesas RZ/V2M SoC features a combined Pin and GPIO controller.
+ Pin multiplexing and GPIO configuration is performed on a per-pin basis.
+ Each port features up to 16 pins, each of them configurable for GPIO function
+ (port mode) or in alternate function mode.
+ Up to 8 different alternate function modes exist for each single pin.
+
+properties:
+ compatible:
+ const: renesas,r9a09g011-pinctrl # RZ/V2M
+
+ reg:
+ maxItems: 1
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ const: 2
+ description:
+ The first cell contains the global GPIO port index, constructed using the
+ RZV2M_GPIO() helper macro in <dt-bindings/pinctrl/rzv2m-pinctrl.h> and the
+ second cell represents consumer flag as mentioned in ../gpio/gpio.txt
+ E.g. "RZV2M_GPIO(8, 1)" for P8_1.
+
+ gpio-ranges:
+ maxItems: 1
+
+ interrupts:
+ description: INEXINT[0..38] corresponding to individual pin inputs.
+ maxItems: 39
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+additionalProperties:
+ anyOf:
+ - type: object
+ allOf:
+ - $ref: pincfg-node.yaml#
+ - $ref: pinmux-node.yaml#
+
+ description:
+ Pin controller client devices use pin configuration subnodes (children
+ and grandchildren) for desired pin configuration.
+ Client device subnodes use below standard properties.
+
+ properties:
+ phandle: true
+ pinmux:
+ description:
+ Values are constructed from GPIO port number, pin number, and
+ alternate function configuration number using the RZV2M_PORT_PINMUX()
+ helper macro in <dt-bindings/pinctrl/rzv2m-pinctrl.h>.
+ pins: true
+ bias-disable: true
+ bias-pull-down: true
+ bias-pull-up: true
+ drive-strength-microamp:
+ # Superset of supported values
+ enum: [ 1600, 1800, 2000, 3200, 3800, 4000, 6400, 7800, 8000,
+ 9000, 9600, 11000, 12000, 13000, 18000 ]
+ slew-rate:
+ description: 0 is slow slew rate, 1 is fast slew rate
+ enum: [ 0, 1 ]
+ gpio-hog: true
+ gpios: true
+ output-high: true
+ output-low: true
+ line-name: true
+
+ - type: object
+ properties:
+ phandle: true
+
+ additionalProperties:
+ $ref: "#/additionalProperties/anyOf/0"
+
+allOf:
+ - $ref: "pinctrl.yaml#"
+
+required:
+ - compatible
+ - reg
+ - gpio-controller
+ - '#gpio-cells'
+ - gpio-ranges
+ - interrupts
+ - clocks
+ - power-domains
+ - resets
+
+examples:
+ - |
+ #include <dt-bindings/pinctrl/rzv2m-pinctrl.h>
+ #include <dt-bindings/clock/r9a09g011-cpg.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pinctrl: pinctrl@b6250000 {
+ compatible = "renesas,r9a09g011-pinctrl";
+ reg = <0xb6250000 0x800>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 0 352>;
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD R9A09G011_PFC_PCLK>;
+ resets = <&cpg R9A09G011_PFC_PRESETN>;
+ power-domains = <&cpg>;
+
+ i2c2_pins: i2c2 {
+ pinmux = <RZV2M_PORT_PINMUX(3, 8, 2)>, /* SDA */
+ <RZV2M_PORT_PINMUX(3, 9, 2)>; /* SCL */
+ };
+ };
diff --git a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
index 335ffc1353b5..d35dcc4f0242 100644
--- a/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml
@@ -59,6 +59,7 @@ properties:
patternProperties:
'^gpio@[0-9a-f]*$':
type: object
+ additionalProperties: false
properties:
gpio-controller: true
'#gpio-cells':
@@ -68,8 +69,7 @@ patternProperties:
maxItems: 1
clocks:
maxItems: 1
- reset:
- minItems: 1
+ resets:
maxItems: 1
gpio-ranges:
minItems: 1
diff --git a/Documentation/devicetree/bindings/pinctrl/starfive,jh7100-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/starfive,jh7100-pinctrl.yaml
index 92963604422f..ed175da16377 100644
--- a/Documentation/devicetree/bindings/pinctrl/starfive,jh7100-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/starfive,jh7100-pinctrl.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pinctrl/starfive,jh7100-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: StarFive JH7100 Pin Controller Device Tree Bindings
+title: StarFive JH7100 Pin Controller
description: |
Bindings for the JH7100 RISC-V SoC from StarFive Ltd.
diff --git a/Documentation/devicetree/bindings/pinctrl/sunplus,sp7021-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/sunplus,sp7021-pinctrl.yaml
index d8e75b3e64f1..347061eece9e 100644
--- a/Documentation/devicetree/bindings/pinctrl/sunplus,sp7021-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/sunplus,sp7021-pinctrl.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/pinctrl/sunplus,sp7021-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Sunplus SP7021 Pin Controller Device Tree Bindings
+title: Sunplus SP7021 Pin Controller
maintainers:
- Dvorkin Dmitry <dvorkin@tibbo.com>
@@ -288,11 +288,14 @@ required:
additionalProperties: false
+allOf:
+ - $ref: "pinctrl.yaml#"
+
examples:
- |
#include <dt-bindings/pinctrl/sppctl-sp7021.h>
- pinctl@9c000100 {
+ pinctrl@9c000100 {
compatible = "sunplus,sp7021-pctl";
reg = <0x9c000100 0x100>, <0x9c000300 0x100>,
<0x9c0032e4 0x1c>, <0x9c000080 0x20>;
diff --git a/Documentation/devicetree/bindings/pinctrl/xlnx,zynqmp-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/xlnx,zynqmp-pinctrl.yaml
index 2722dc7bb03d..1e2b9b627b12 100644
--- a/Documentation/devicetree/bindings/pinctrl/xlnx,zynqmp-pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/xlnx,zynqmp-pinctrl.yaml
@@ -274,6 +274,10 @@ patternProperties:
slew-rate:
enum: [0, 1]
+ output-enable:
+ description:
+ This will internally disable the tri-state for MIO pins.
+
drive-strength:
description:
Selects the drive strength for MIO pins, in mA.
diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml b/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
index f005abac7079..43a932237a92 100644
--- a/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
+++ b/Documentation/devicetree/bindings/power/amlogic,meson-ee-pwrc.yaml
@@ -2,13 +2,13 @@
# Copyright 2019 BayLibre, SAS
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/amlogic,meson-ee-pwrc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/amlogic,meson-ee-pwrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Amlogic Meson Everything-Else Power Domains
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |+
The Everything-Else Power Domains node should be the child of a syscon
@@ -17,7 +17,7 @@ description: |+
- compatible: Should be the following:
"amlogic,meson-gx-hhi-sysctrl", "simple-mfd", "syscon"
- Refer to the the bindings described in
+ Refer to the bindings described in
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml
index 86e5f6513bb3..eab21bb2050a 100644
--- a/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml
+++ b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml
@@ -3,8 +3,8 @@
# Author: Jianxin Pan <jianxin.pan@amlogic.com>
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-pwrc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/amlogic,meson-sec-pwrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Amlogic Meson Secure Power Domains
diff --git a/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml b/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml
index 19a194980142..94d369eb85de 100644
--- a/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml
+++ b/Documentation/devicetree/bindings/power/apple,pmgr-pwrstate.yaml
@@ -10,7 +10,7 @@ maintainers:
- Hector Martin <marcan@marcan.st>
allOf:
- - $ref: "power-domain.yaml#"
+ - $ref: power-domain.yaml#
description: |
Apple SoCs include PMGR blocks responsible for power management,
diff --git a/Documentation/devicetree/bindings/power/brcm,bcm63xx-power.yaml b/Documentation/devicetree/bindings/power/brcm,bcm63xx-power.yaml
index 63b15ac6dde4..d867bd6976d8 100644
--- a/Documentation/devicetree/bindings/power/brcm,bcm63xx-power.yaml
+++ b/Documentation/devicetree/bindings/power/brcm,bcm63xx-power.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/brcm,bcm63xx-power.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/brcm,bcm63xx-power.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: BCM63xx power domain driver
diff --git a/Documentation/devicetree/bindings/power/domain-idle-state.yaml b/Documentation/devicetree/bindings/power/domain-idle-state.yaml
index 6a12efdf436a..4ee920a1de69 100644
--- a/Documentation/devicetree/bindings/power/domain-idle-state.yaml
+++ b/Documentation/devicetree/bindings/power/domain-idle-state.yaml
@@ -20,6 +20,7 @@ properties:
patternProperties:
"^(cpu|cluster|domain)-":
type: object
+ additionalProperties: false
description:
Each state node represents a domain idle state description.
@@ -44,6 +45,15 @@ patternProperties:
state will yield power benefits, after overcoming the overhead while
entering the idle state.
+ arm,psci-suspend-param:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ power_state parameter to pass to the ARM PSCI suspend call.
+
+ Device tree nodes that require usage of PSCI CPU_SUSPEND function
+ (i.e. idle states node with entry-method property is set to "psci")
+ must specify this property.
+
required:
- compatible
- entry-latency-us
diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpc.yaml b/Documentation/devicetree/bindings/power/fsl,imx-gpc.yaml
index a055b3e819d8..777e1d852ddd 100644
--- a/Documentation/devicetree/bindings/power/fsl,imx-gpc.yaml
+++ b/Documentation/devicetree/bindings/power/fsl,imx-gpc.yaml
@@ -43,11 +43,21 @@ properties:
pgc:
type: object
+ additionalProperties: false
description: list of power domains provided by this controller.
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
patternProperties:
"power-domain@[0-9]$":
type: object
+ additionalProperties: false
+
properties:
'#power-domain-cells':
@@ -78,6 +88,10 @@ properties:
- '#power-domain-cells'
- reg
+ required:
+ - '#address-cells'
+ - '#size-cells'
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
index 747622bdc57b..58022ae7d5dd 100644
--- a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
+++ b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml
@@ -42,11 +42,21 @@ properties:
pgc:
type: object
+ additionalProperties: false
description: list of power domains provided by this controller.
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
patternProperties:
- "power-domain@[0-9]$":
+ "power-domain@[0-9a-f]+$":
type: object
+ additionalProperties: false
+
properties:
'#power-domain-cells':
@@ -85,6 +95,10 @@ properties:
- '#power-domain-cells'
- reg
+ required:
+ - '#address-cells'
+ - '#size-cells'
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml b/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml
new file mode 100644
index 000000000000..1f72b18ca0fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/fsl,scu-pd.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/fsl,scu-pd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Power domain bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+ Power domain bindings based on SCU Message Protocol
+
+allOf:
+ - $ref: power-domain.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - fsl,imx8qm-scu-pd
+ - fsl,imx8qxp-scu-pd
+ - const: fsl,scu-pd
+
+ '#power-domain-cells':
+ const: 1
+
+required:
+ - compatible
+ - '#power-domain-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ power-controller {
+ compatible = "fsl,imx8qxp-scu-pd", "fsl,scu-pd";
+ #power-domain-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml b/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml
index 135c6f722091..605ec7ab5f63 100644
--- a/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml
+++ b/Documentation/devicetree/bindings/power/mediatek,power-controller.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Mediatek Power Domains Controller
maintainers:
- - Weiyi Lu <weiyi.lu@mediatek.com>
+ - MandyJH Liu <mandyjh.liu@mediatek.com>
- Matthias Brugger <mbrugger@suse.com>
description: |
@@ -19,10 +19,11 @@ description: |
properties:
$nodename:
- const: power-controller
+ pattern: '^power-controller(@[0-9a-f]+)?$'
compatible:
enum:
+ - mediatek,mt6795-power-controller
- mediatek,mt8167-power-controller
- mediatek,mt8173-power-controller
- mediatek,mt8183-power-controller
@@ -41,6 +42,23 @@ properties:
patternProperties:
"^power-domain@[0-9a-f]+$":
+ $ref: "#/$defs/power-domain-node"
+ patternProperties:
+ "^power-domain@[0-9a-f]+$":
+ $ref: "#/$defs/power-domain-node"
+ patternProperties:
+ "^power-domain@[0-9a-f]+$":
+ $ref: "#/$defs/power-domain-node"
+ patternProperties:
+ "^power-domain@[0-9a-f]+$":
+ $ref: "#/$defs/power-domain-node"
+ unevaluatedProperties: false
+ unevaluatedProperties: false
+ unevaluatedProperties: false
+ unevaluatedProperties: false
+
+$defs:
+ power-domain-node:
type: object
description: |
Represents the power domains within the power controller node as documented
@@ -62,6 +80,7 @@ patternProperties:
reg:
description: |
Power domain index. Valid values are defined in:
+ "include/dt-bindings/power/mt6795-power.h" - for MT8167 type power domain.
"include/dt-bindings/power/mt8167-power.h" - for MT8167 type power domain.
"include/dt-bindings/power/mt8173-power.h" - for MT8173 type power domain.
"include/dt-bindings/power/mt8183-power.h" - for MT8183 type power domain.
@@ -98,123 +117,9 @@ patternProperties:
$ref: /schemas/types.yaml#/definitions/phandle
description: phandle to the device containing the SMI register range.
- patternProperties:
- "^power-domain@[0-9a-f]+$":
- type: object
- description: |
- Represents a power domain child within a power domain parent node.
-
- properties:
-
- '#power-domain-cells':
- description:
- Must be 0 for nodes representing a single PM domain and 1 for nodes
- providing multiple PM domains.
-
- '#address-cells':
- const: 1
-
- '#size-cells':
- const: 0
-
- reg:
- maxItems: 1
-
- clocks:
- description: |
- A number of phandles to clocks that need to be enabled during domain
- power-up sequencing.
-
- clock-names:
- description: |
- List of names of clocks, in order to match the power-up sequencing
- for each power domain we need to group the clocks by name. BASIC
- clocks need to be enabled before enabling the corresponding power
- domain, and should not have a '-' in their name (i.e mm, mfg, venc).
- SUSBYS clocks need to be enabled before releasing the bus protection,
- and should contain a '-' in their name (i.e mm-0, isp-0, cam-0).
-
- In order to follow properly the power-up sequencing, the clocks must
- be specified by order, adding first the BASIC clocks followed by the
- SUSBSYS clocks.
-
- domain-supply:
- description: domain regulator supply.
-
- mediatek,infracfg:
- $ref: /schemas/types.yaml#/definitions/phandle
- description: phandle to the device containing the INFRACFG register range.
-
- mediatek,smi:
- $ref: /schemas/types.yaml#/definitions/phandle
- description: phandle to the device containing the SMI register range.
-
- patternProperties:
- "^power-domain@[0-9a-f]+$":
- type: object
- description: |
- Represents a power domain child within a power domain parent node.
-
- properties:
-
- '#power-domain-cells':
- description:
- Must be 0 for nodes representing a single PM domain and 1 for nodes
- providing multiple PM domains.
-
- '#address-cells':
- const: 1
-
- '#size-cells':
- const: 0
-
- reg:
- maxItems: 1
-
- clocks:
- description: |
- A number of phandles to clocks that need to be enabled during domain
- power-up sequencing.
-
- clock-names:
- description: |
- List of names of clocks, in order to match the power-up sequencing
- for each power domain we need to group the clocks by name. BASIC
- clocks need to be enabled before enabling the corresponding power
- domain, and should not have a '-' in their name (i.e mm, mfg, venc).
- SUSBYS clocks need to be enabled before releasing the bus protection,
- and should contain a '-' in their name (i.e mm-0, isp-0, cam-0).
-
- In order to follow properly the power-up sequencing, the clocks must
- be specified by order, adding first the BASIC clocks followed by the
- SUSBSYS clocks.
-
- domain-supply:
- description: domain regulator supply.
-
- mediatek,infracfg:
- $ref: /schemas/types.yaml#/definitions/phandle
- description: phandle to the device containing the INFRACFG register range.
-
- mediatek,smi:
- $ref: /schemas/types.yaml#/definitions/phandle
- description: phandle to the device containing the SMI register range.
-
- required:
- - reg
-
- additionalProperties: false
-
- required:
- - reg
-
- additionalProperties: false
-
required:
- reg
- additionalProperties: false
-
required:
- compatible
@@ -230,7 +135,7 @@ examples:
#size-cells = <2>;
scpsys: syscon@10006000 {
- compatible = "syscon", "simple-mfd";
+ compatible = "mediatek,mt8173-scpsys", "syscon", "simple-mfd";
reg = <0 0x10006000 0 0x1000>;
spm: power-controller {
diff --git a/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml b/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml
index ad77a6380f38..5b4eda919911 100644
--- a/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml
+++ b/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm RPM/RPMh Power domains
maintainers:
- - Rajendra Nayak <rnayak@codeaurora.org>
+ - Bjorn Andersson <andersson@kernel.org>
description:
For RPM/RPMh Power domains, we communicate a performance state to RPM/RPMh
@@ -18,6 +18,7 @@ properties:
enum:
- qcom,mdm9607-rpmpd
- qcom,msm8226-rpmpd
+ - qcom,msm8909-rpmpd
- qcom,msm8916-rpmpd
- qcom,msm8939-rpmpd
- qcom,msm8953-rpmpd
@@ -39,6 +40,7 @@ properties:
- qcom,sm6115-rpmpd
- qcom,sm6125-rpmpd
- qcom,sm6350-rpmhpd
+ - qcom,sm6375-rpmpd
- qcom,sm8150-rpmhpd
- qcom,sm8250-rpmhpd
- qcom,sm8350-rpmhpd
diff --git a/Documentation/devicetree/bindings/power/renesas,apmu.yaml b/Documentation/devicetree/bindings/power/renesas,apmu.yaml
index d77fc88050c8..f2cc89e7f4e4 100644
--- a/Documentation/devicetree/bindings/power/renesas,apmu.yaml
+++ b/Documentation/devicetree/bindings/power/renesas,apmu.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/renesas,apmu.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/renesas,apmu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas Advanced Power Management Unit
diff --git a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.yaml b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.yaml
index 8d56bedd3390..0720b54881c2 100644
--- a/Documentation/devicetree/bindings/power/renesas,rcar-sysc.yaml
+++ b/Documentation/devicetree/bindings/power/renesas,rcar-sysc.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/renesas,rcar-sysc.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/renesas,rcar-sysc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas R-Car and RZ/G System Controller
diff --git a/Documentation/devicetree/bindings/power/reset/msm-poweroff.txt b/Documentation/devicetree/bindings/power/reset/msm-poweroff.txt
deleted file mode 100644
index ce44ad357565..000000000000
--- a/Documentation/devicetree/bindings/power/reset/msm-poweroff.txt
+++ /dev/null
@@ -1,17 +0,0 @@
-MSM Restart Driver
-
-A power supply hold (ps-hold) bit is set to power the msm chipsets.
-Clearing that bit allows us to restart/poweroff. The difference
-between poweroff and restart is determined by unique power manager IC
-settings.
-
-Required Properties:
--compatible: "qcom,pshold"
--reg: Specifies the physical address of the ps-hold register
-
-Example:
-
- restart@fc4ab000 {
- compatible = "qcom,pshold";
- reg = <0xfc4ab000 0x4>;
- };
diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
index 353f155df0f4..d96170eecbd2 100644
--- a/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
+++ b/Documentation/devicetree/bindings/power/reset/qcom,pon.yaml
@@ -15,26 +15,39 @@ description: |
This DT node has pwrkey and resin as sub nodes.
-allOf:
- - $ref: reboot-mode.yaml#
-
properties:
compatible:
enum:
- qcom,pm8916-pon
- qcom,pms405-pon
- qcom,pm8998-pon
+ - qcom,pmk8350-pon
reg:
- maxItems: 1
+ description: |
+ Specifies the SPMI base address for the PON (power-on) peripheral. For
+ PMICs that have the PON peripheral (GEN3) split into PON_HLOS and PON_PBS
+ (e.g. PMK8350), this can hold addresses of both PON_HLOS and PON_PBS
+ peripherals. In that case, the PON_PBS address needs to be specified to
+ facilitate software debouncing on some PMIC.
+ minItems: 1
+ maxItems: 2
+
+ reg-names:
+ minItems: 1
+ maxItems: 2
pwrkey:
type: object
- $ref: "../../input/qcom,pm8941-pwrkey.yaml#"
+ $ref: /schemas/input/qcom,pm8941-pwrkey.yaml#
resin:
type: object
- $ref: "../../input/qcom,pm8941-pwrkey.yaml#"
+ $ref: /schemas/input/qcom,pm8941-pwrkey.yaml#
+
+ watchdog:
+ type: object
+ $ref: /schemas/watchdog/qcom,pm8916-wdt.yaml
required:
- compatible
@@ -42,6 +55,39 @@ required:
unevaluatedProperties: false
+allOf:
+ - $ref: reboot-mode.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8916-pon
+ - qcom,pms405-pon
+ - qcom,pm8998-pon
+ then:
+ properties:
+ reg:
+ maxItems: 1
+ reg-names:
+ items:
+ - const: pon
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: qcom,pmk8350-pon
+ then:
+ properties:
+ reg:
+ minItems: 1
+ maxItems: 2
+ reg-names:
+ minItems: 1
+ items:
+ - const: hlos
+ - const: pbs
+
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
diff --git a/Documentation/devicetree/bindings/power/reset/qcom,pshold.yaml b/Documentation/devicetree/bindings/power/reset/qcom,pshold.yaml
new file mode 100644
index 000000000000..527962d54a8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/qcom,pshold.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/qcom,pshold.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SoC restart and power off
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ A power supply hold (ps-hold) bit is set to power the Qualcomm chipsets.
+ Clearing that bit allows us to restart/power off. The difference between
+ power off and restart is determined by unique power manager IC settings.
+
+properties:
+ compatible:
+ const: qcom,pshold
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ reset-controller@fc4ab000 {
+ compatible = "qcom,pshold";
+ reg = <0xfc4ab000 0x4>;
+ };
diff --git a/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml b/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml
index 03bd1fa5a623..e9417557cd30 100644
--- a/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml
+++ b/Documentation/devicetree/bindings/power/reset/regulator-poweroff.yaml
@@ -16,7 +16,7 @@ description: |
properties:
compatible:
- const: "regulator-poweroff"
+ const: regulator-poweroff
cpu-supply:
description:
diff --git a/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.yaml b/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.yaml
index 68d7c14a7163..46de35861738 100644
--- a/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.yaml
+++ b/Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.yaml
@@ -15,7 +15,7 @@ description: |
properties:
compatible:
- const: "xlnx,zynqmp-power"
+ const: xlnx,zynqmp-power
interrupts:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
index 3deb0fc8dfd3..0d5e999a58f1 100644
--- a/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
+++ b/Documentation/devicetree/bindings/power/rockchip,power-controller.yaml
@@ -41,6 +41,8 @@ properties:
- rockchip,rk3368-power-controller
- rockchip,rk3399-power-controller
- rockchip,rk3568-power-controller
+ - rockchip,rk3588-power-controller
+ - rockchip,rv1126-power-controller
"#power-domain-cells":
const: 1
@@ -119,6 +121,8 @@ $defs:
"include/dt-bindings/power/rk3368-power.h"
"include/dt-bindings/power/rk3399-power.h"
"include/dt-bindings/power/rk3568-power.h"
+ "include/dt-bindings/power/rk3588-power.h"
+ "include/dt-bindings/power/rockchip,rv1126-power.h"
clocks:
minItems: 1
diff --git a/Documentation/devicetree/bindings/power/rockchip-io-domain.yaml b/Documentation/devicetree/bindings/power/rockchip-io-domain.yaml
index 1727bf108979..d71fc72d4464 100644
--- a/Documentation/devicetree/bindings/power/rockchip-io-domain.yaml
+++ b/Documentation/devicetree/bindings/power/rockchip-io-domain.yaml
@@ -58,6 +58,7 @@ properties:
- rockchip,rk3568-pmu-io-voltage-domain
- rockchip,rv1108-io-voltage-domain
- rockchip,rv1108-pmu-io-voltage-domain
+ - rockchip,rv1126-pmu-io-voltage-domain
required:
- compatible
@@ -78,6 +79,7 @@ allOf:
- $ref: "#/$defs/rk3568-pmu"
- $ref: "#/$defs/rv1108"
- $ref: "#/$defs/rv1108-pmu"
+ - $ref: "#/$defs/rv1126-pmu"
$defs:
px30:
@@ -344,6 +346,34 @@ $defs:
pmu-supply:
description: The supply connected to PMUIO_VDD.
+ rv1126-pmu:
+ if:
+ properties:
+ compatible:
+ contains:
+ const: rockchip,rv1126-pmu-io-voltage-domain
+
+ then:
+ properties:
+ vccio1-supply:
+ description: The supply connected to VCCIO1.
+ vccio2-supply:
+ description: The supply connected to VCCIO2.
+ vccio3-supply:
+ description: The supply connected to VCCIO3.
+ vccio4-supply:
+ description: The supply connected to VCCIO4.
+ vccio5-supply:
+ description: The supply connected to VCCIO5.
+ vccio6-supply:
+ description: The supply connected to VCCIO6.
+ vccio7-supply:
+ description: The supply connected to VCCIO7.
+ pmuio0-supply:
+ description: The supply connected to PMUIO0.
+ pmuio1-supply:
+ description: The supply connected to PMUIO1.
+
examples:
- |
io-domains {
diff --git a/Documentation/devicetree/bindings/power/supply/active-semi,act8945a-charger.yaml b/Documentation/devicetree/bindings/power/supply/active-semi,act8945a-charger.yaml
index 3f74bc19415d..5220d9cb16d8 100644
--- a/Documentation/devicetree/bindings/power/supply/active-semi,act8945a-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/active-semi,act8945a-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/active-semi,act8945a-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/active-semi,act8945a-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Active-semi ACT8945A Charger Function
diff --git a/Documentation/devicetree/bindings/power/supply/bq2415x.yaml b/Documentation/devicetree/bindings/power/supply/bq2415x.yaml
index 118cf484cc69..a3c00e078918 100644
--- a/Documentation/devicetree/bindings/power/supply/bq2415x.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq2415x.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq2415x.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq2415x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for TI bq2415x Li-Ion Charger
diff --git a/Documentation/devicetree/bindings/power/supply/bq24190.yaml b/Documentation/devicetree/bindings/power/supply/bq24190.yaml
index 0d7cbbdf808b..4884ec90e2b8 100644
--- a/Documentation/devicetree/bindings/power/supply/bq24190.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq24190.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq24190.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq24190.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for TI BQ2419x Li-Ion Battery Charger
@@ -28,7 +28,7 @@ properties:
maxItems: 1
usb-otg-vbus:
- type: object
+ $ref: /schemas/regulator/regulator.yaml#
description: |
Regulator that is used to control the VBUS voltage direction for
either USB host mode or for charging on the OTG port
diff --git a/Documentation/devicetree/bindings/power/supply/bq24257.yaml b/Documentation/devicetree/bindings/power/supply/bq24257.yaml
index 3a0f6cd9015a..c7406bef0fa8 100644
--- a/Documentation/devicetree/bindings/power/supply/bq24257.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq24257.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq24257.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq24257.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for bq24250, bq24251 and bq24257 Li-Ion Charger
diff --git a/Documentation/devicetree/bindings/power/supply/bq24735.yaml b/Documentation/devicetree/bindings/power/supply/bq24735.yaml
index 131be6782c4b..dd9176ce71b3 100644
--- a/Documentation/devicetree/bindings/power/supply/bq24735.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq24735.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq24735.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq24735.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for TI BQ24735 Li-Ion Battery Charger
diff --git a/Documentation/devicetree/bindings/power/supply/bq2515x.yaml b/Documentation/devicetree/bindings/power/supply/bq2515x.yaml
index 813d6afde606..1a1b240034ef 100644
--- a/Documentation/devicetree/bindings/power/supply/bq2515x.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq2515x.yaml
@@ -2,14 +2,13 @@
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq2515x.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq2515x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI bq2515x 500-mA Linear charger family
maintainers:
- - Dan Murphy <dmurphy@ti.com>
- - Ricardo Rivera-Matos <r-rivera-matos@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The BQ2515x family is a highly integrated battery charge management IC that
diff --git a/Documentation/devicetree/bindings/power/supply/bq256xx.yaml b/Documentation/devicetree/bindings/power/supply/bq256xx.yaml
index 92ec7ed25668..82f382a7ffb3 100644
--- a/Documentation/devicetree/bindings/power/supply/bq256xx.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq256xx.yaml
@@ -2,13 +2,13 @@
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq256xx.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq256xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI bq256xx Switch Mode Buck Charger
maintainers:
- - Ricardo Rivera-Matos <r-rivera-matos@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The bq256xx devices are a family of highly-integrated battery charge
diff --git a/Documentation/devicetree/bindings/power/supply/bq25890.yaml b/Documentation/devicetree/bindings/power/supply/bq25890.yaml
index bf823b615439..204c0147188f 100644
--- a/Documentation/devicetree/bindings/power/supply/bq25890.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq25890.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq25890.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq25890.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for bq25890, bq25892, bq25895 and bq25896 Li-Ion Charger
diff --git a/Documentation/devicetree/bindings/power/supply/bq25980.yaml b/Documentation/devicetree/bindings/power/supply/bq25980.yaml
index 8367a1fd4057..b687b8bcd705 100644
--- a/Documentation/devicetree/bindings/power/supply/bq25980.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq25980.yaml
@@ -2,14 +2,13 @@
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq25980.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq25980.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI BQ25980 Flash Charger
maintainers:
- - Dan Murphy <dmurphy@ti.com>
- - Ricardo Rivera-Matos <r-rivera-matos@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The BQ25980, BQ25975, and BQ25960 are a series of flash chargers intended
diff --git a/Documentation/devicetree/bindings/power/supply/bq27xxx.yaml b/Documentation/devicetree/bindings/power/supply/bq27xxx.yaml
index 6af41da3e055..65fc6049efc1 100644
--- a/Documentation/devicetree/bindings/power/supply/bq27xxx.yaml
+++ b/Documentation/devicetree/bindings/power/supply/bq27xxx.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/bq27xxx.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/bq27xxx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI BQ27XXX fuel gauge family
diff --git a/Documentation/devicetree/bindings/power/supply/charger-manager.yaml b/Documentation/devicetree/bindings/power/supply/charger-manager.yaml
index fbb2204769aa..5af1e0beaf29 100644
--- a/Documentation/devicetree/bindings/power/supply/charger-manager.yaml
+++ b/Documentation/devicetree/bindings/power/supply/charger-manager.yaml
@@ -50,6 +50,7 @@ properties:
cm-battery-stat:
description: battery status
+ $ref: /schemas/types.yaml#/definitions/uint32
enum:
- 0 # battery always present
- 1 # no battery
diff --git a/Documentation/devicetree/bindings/power/supply/cpcap-battery.yaml b/Documentation/devicetree/bindings/power/supply/cpcap-battery.yaml
index 7153fd4ce55f..694bfdb5815c 100644
--- a/Documentation/devicetree/bindings/power/supply/cpcap-battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/cpcap-battery.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/cpcap-battery.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/cpcap-battery.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Motorola CPCAP PMIC battery
diff --git a/Documentation/devicetree/bindings/power/supply/cpcap-charger.yaml b/Documentation/devicetree/bindings/power/supply/cpcap-charger.yaml
index cb6353683d7b..7e6bf30a0107 100644
--- a/Documentation/devicetree/bindings/power/supply/cpcap-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/cpcap-charger.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/cpcap-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/cpcap-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Motorola CPCAP PMIC charger
diff --git a/Documentation/devicetree/bindings/power/supply/dlg,da9150-charger.yaml b/Documentation/devicetree/bindings/power/supply/dlg,da9150-charger.yaml
index 96336b05d76d..b289388952bf 100644
--- a/Documentation/devicetree/bindings/power/supply/dlg,da9150-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/dlg,da9150-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/dlg,da9150-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/dlg,da9150-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Dialog Semiconductor DA9150 Charger Power Supply bindings
diff --git a/Documentation/devicetree/bindings/power/supply/dlg,da9150-fuel-gauge.yaml b/Documentation/devicetree/bindings/power/supply/dlg,da9150-fuel-gauge.yaml
index 30c2fff7cf92..d47caf59d204 100644
--- a/Documentation/devicetree/bindings/power/supply/dlg,da9150-fuel-gauge.yaml
+++ b/Documentation/devicetree/bindings/power/supply/dlg,da9150-fuel-gauge.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/dlg,da9150-fuel-gauge.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/dlg,da9150-fuel-gauge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Dialog Semiconductor DA9150 Fuel-Gauge Power Supply bindings
diff --git a/Documentation/devicetree/bindings/power/supply/ingenic,battery.yaml b/Documentation/devicetree/bindings/power/supply/ingenic,battery.yaml
index 76c227a7cd5c..46527038bf22 100644
--- a/Documentation/devicetree/bindings/power/supply/ingenic,battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/ingenic,battery.yaml
@@ -2,8 +2,8 @@
# Copyright 2019-2020 Artur Rojek
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/ingenic,battery.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/ingenic,battery.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Ingenic JZ47xx battery bindings
diff --git a/Documentation/devicetree/bindings/power/supply/isp1704.yaml b/Documentation/devicetree/bindings/power/supply/isp1704.yaml
index 4c91da70011d..7e3449ed70d4 100644
--- a/Documentation/devicetree/bindings/power/supply/isp1704.yaml
+++ b/Documentation/devicetree/bindings/power/supply/isp1704.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/isp1704.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/isp1704.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for NXP ISP1704 USB Charger Detection
diff --git a/Documentation/devicetree/bindings/power/supply/lego,ev3-battery.yaml b/Documentation/devicetree/bindings/power/supply/lego,ev3-battery.yaml
index 518eabb63588..a99d989f1450 100644
--- a/Documentation/devicetree/bindings/power/supply/lego,ev3-battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/lego,ev3-battery.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/lego,ev3-battery.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/lego,ev3-battery.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: LEGO MINDSTORMS EV3 Battery
diff --git a/Documentation/devicetree/bindings/power/supply/lltc,lt3651-charger.yaml b/Documentation/devicetree/bindings/power/supply/lltc,lt3651-charger.yaml
index e2d8d2aebb73..76cedf95a12c 100644
--- a/Documentation/devicetree/bindings/power/supply/lltc,lt3651-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/lltc,lt3651-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/lltc,lt3651-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/lltc,lt3651-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices LT3651 Charger Power Supply bindings
diff --git a/Documentation/devicetree/bindings/power/supply/lltc,ltc294x.yaml b/Documentation/devicetree/bindings/power/supply/lltc,ltc294x.yaml
index 043bf378040f..109b41a0d56c 100644
--- a/Documentation/devicetree/bindings/power/supply/lltc,ltc294x.yaml
+++ b/Documentation/devicetree/bindings/power/supply/lltc,ltc294x.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/lltc,ltc294x.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/lltc,ltc294x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for LTC2941, LTC2942, LTC2943 and LTC2944 battery fuel gauges
diff --git a/Documentation/devicetree/bindings/power/supply/ltc4162-l.yaml b/Documentation/devicetree/bindings/power/supply/ltc4162-l.yaml
index 6d7aa97a6475..cfffaeef8b09 100644
--- a/Documentation/devicetree/bindings/power/supply/ltc4162-l.yaml
+++ b/Documentation/devicetree/bindings/power/supply/ltc4162-l.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2020 Topic Embedded Products
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/ltc4162-l.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/ltc4162-l.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Linear Technology (Analog Devices) LTC4162-L Charger
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,ds2760.yaml b/Documentation/devicetree/bindings/power/supply/maxim,ds2760.yaml
index 818647edf63d..c838efcf7e16 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,ds2760.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,ds2760.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/maxim,ds2760.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/maxim,ds2760.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim DS2760 DT bindings
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max14656.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max14656.yaml
index 0a41078ebd99..070ef6f96e60 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,max14656.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max14656.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/maxim,max14656.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/maxim,max14656.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim MAX14656 DT bindings
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17040.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17040.yaml
index 6b4588a3253b..3a529326ecbd 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,max17040.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max17040.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/maxim,max17040.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/maxim,max17040.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim 17040 fuel gauge series
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
index 971b53c58cc6..aff5d0792e0f 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/maxim,max17042.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/maxim,max17042.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim 17042 fuel gauge series
diff --git a/Documentation/devicetree/bindings/power/supply/maxim,max8903.yaml b/Documentation/devicetree/bindings/power/supply/maxim,max8903.yaml
index 4828ca0842ae..a8d625f285f1 100644
--- a/Documentation/devicetree/bindings/power/supply/maxim,max8903.yaml
+++ b/Documentation/devicetree/bindings/power/supply/maxim,max8903.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/maxim,max8903.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/maxim,max8903.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim Semiconductor MAX8903 Battery Charger
diff --git a/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
new file mode 100644
index 000000000000..fd491c598a00
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/supply/mediatek,mt6370-charger.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/mediatek,mt6370-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek MT6370 Battery Charger
+
+maintainers:
+ - ChiaEn Wu <chiaen_wu@richtek.com>
+
+description: |
+ This module is part of the MT6370 MFD device.
+ Provides Battery Charger, Boost for OTG devices and BC1.2 detection.
+
+properties:
+ compatible:
+ const: mediatek,mt6370-charger
+
+ interrupts:
+ description: |
+ Specify what irqs are needed to be handled by MT6370 Charger driver.
+ We need to use the IRQ "MT6370_IRQ_OVPCTRL_UVP_D" to know when USB
+ is plugged in, and then the driver will enable BC1.2 detection.
+ After the hardware of MT6370 completes the BC1.2 detection,
+ IRQ "MT6370_IRQ_ATTACH" will be triggered, and the driver will know
+ the result of BC1.2 detection.
+ When the IRQ "MT6370_IRQ_CHG_MIVR" is triggered, it means that the
+ hardware enters the "Minimum Input Voltage Regulation loop" and
+ a workaround needs to be applied at this time.
+ In summary, "MT6370_IRQ_OVPCTRL_UVP_D", "MT6370_IRQ_ATTACH" and
+ "MT6370_IRQ_CHG_MIVR" are required in this charger driver.
+ items:
+ - description: irq of "USB is plugged in"
+ - description: irq of "BC1.2 is done"
+ - description: irq of "Minimum Input Voltage Regulation loop is active"
+
+ interrupt-names:
+ items:
+ - const: uvp_d_evt
+ - const: attach_i
+ - const: mivr
+
+ io-channels:
+ description: |
+ Use ADC channel to read VBUS, IBUS, IBAT, etc., info.
+ minItems: 1
+ items:
+ - description: |
+ VBUS voltage with lower accuracy (+-75mV) but higher measure
+ range (1~22V)
+ - description: |
+ VBUS voltage with higher accuracy (+-30mV) but lower measure
+ range (1~9.76V)
+ - description: the main system input voltage
+ - description: battery voltage
+ - description: battery temperature-sense input voltage
+ - description: IBUS current (required)
+ - description: battery current
+ - description: |
+ regulated output voltage to supply for the PWM low-side gate driver
+ and the bootstrap capacitor
+ - description: IC junction temperature
+
+ io-channel-names:
+ minItems: 1
+ items:
+ - const: vbusdiv5
+ - const: vbusdiv2
+ - const: vsys
+ - const: vbat
+ - const: ts_bat
+ - const: ibus
+ - const: ibat
+ - const: chg_vddp
+ - const: temp_jc
+
+ usb-otg-vbus-regulator:
+ type: object
+ description: OTG boost regulator.
+ unevaluatedProperties: false
+ $ref: /schemas/regulator/regulator.yaml#
+
+ properties:
+ enable-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - interrupts
+ - interrupt-names
+ - io-channels
+
+additionalProperties: false
+
+...
diff --git a/Documentation/devicetree/bindings/power/supply/nokia,n900-battery.yaml b/Documentation/devicetree/bindings/power/supply/nokia,n900-battery.yaml
index 4a1489f2b28d..5178e6207271 100644
--- a/Documentation/devicetree/bindings/power/supply/nokia,n900-battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/nokia,n900-battery.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/nokia,n900-battery.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/nokia,n900-battery.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Nokia N900 battery
diff --git a/Documentation/devicetree/bindings/power/supply/olpc-battery.yaml b/Documentation/devicetree/bindings/power/supply/olpc-battery.yaml
index 0bd7bf3b8e1b..dd89e2532a07 100644
--- a/Documentation/devicetree/bindings/power/supply/olpc-battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/olpc-battery.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/olpc-battery.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/olpc-battery.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: OLPC Battery
diff --git a/Documentation/devicetree/bindings/power/supply/power-supply.yaml b/Documentation/devicetree/bindings/power/supply/power-supply.yaml
index 9a490fbd32e1..2f672e6e8d72 100644
--- a/Documentation/devicetree/bindings/power/supply/power-supply.yaml
+++ b/Documentation/devicetree/bindings/power/supply/power-supply.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/power-supply.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/power-supply.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Power Supply Core Support
diff --git a/Documentation/devicetree/bindings/power/supply/qcom,pm8941-charger.yaml b/Documentation/devicetree/bindings/power/supply/qcom,pm8941-charger.yaml
index caeff68c66d5..cbac55d3cb92 100644
--- a/Documentation/devicetree/bindings/power/supply/qcom,pm8941-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/qcom,pm8941-charger.yaml
@@ -117,11 +117,18 @@ properties:
be done externally to fully comply with the JEITA safety guidelines if this flag
is set.
+ usb-charge-current-limit:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 100000
+ maximum: 2500000
+ description: |
+ Default USB charge current limit in uA.
+
usb-otg-in-supply:
description: Reference to the regulator supplying power to the USB_OTG_IN pin.
otg-vbus:
- type: object
+ $ref: /schemas/regulator/regulator.yaml#
description: |
This node defines a regulator used to control the direction of VBUS voltage.
Specifically whether to supply voltage to VBUS for host mode operation of the OTG port,
diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml
index ae647d3355a2..756c16d1727d 100644
--- a/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml
+++ b/Documentation/devicetree/bindings/power/supply/richtek,rt5033-battery.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/richtek,rt5033-battery.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/richtek,rt5033-battery.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Richtek RT5033 PMIC Fuel Gauge
diff --git a/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml b/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml
index e1c233462f29..bce15101318e 100644
--- a/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml
+++ b/Documentation/devicetree/bindings/power/supply/richtek,rt9455.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/richtek,rt9455.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/richtek,rt9455.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Binding for Richtek rt9455 battery charger
diff --git a/Documentation/devicetree/bindings/power/supply/sc2731-charger.yaml b/Documentation/devicetree/bindings/power/supply/sc2731-charger.yaml
index b62c2431f94e..eeb043f9bb4f 100644
--- a/Documentation/devicetree/bindings/power/supply/sc2731-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/sc2731-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/sc2731-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/sc2731-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Spreadtrum SC2731 PMICs battery charger binding
diff --git a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml
index e019cffd1f38..d90a838a1744 100644
--- a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml
+++ b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/sc27xx-fg.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/sc27xx-fg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Spreadtrum SC27XX PMICs Fuel Gauge Unit Power Supply Bindings
diff --git a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-btemp.yaml b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-btemp.yaml
index 4b8a00cec39c..525abdfb3e2d 100644
--- a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-btemp.yaml
+++ b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-btemp.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/stericsson,ab8500-btemp.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/stericsson,ab8500-btemp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AB8500 Battery Temperature Monitor
diff --git a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-chargalg.yaml b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-chargalg.yaml
index 6799224f7fb4..10bbdcfc87b6 100644
--- a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-chargalg.yaml
+++ b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-chargalg.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/stericsson,ab8500-chargalg.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/stericsson,ab8500-chargalg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AB8500 Charging Algorithm
diff --git a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-charger.yaml b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-charger.yaml
index 9518eb7289d0..e33329b3af61 100644
--- a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-charger.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/stericsson,ab8500-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/stericsson,ab8500-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AB8500 Charger
diff --git a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-fg.yaml b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-fg.yaml
index 2ce408a7c0ae..6a724ca90e99 100644
--- a/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-fg.yaml
+++ b/Documentation/devicetree/bindings/power/supply/stericsson,ab8500-fg.yaml
@@ -2,8 +2,8 @@
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/stericsson,ab8500-fg.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/stericsson,ab8500-fg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AB8500 Fuel Gauge
diff --git a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
index 20862cdfc116..2d552becbfe6 100644
--- a/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/summit,smb347-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/summit,smb347-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/summit,smb347-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Battery charger driver for SMB345, SMB347 and SMB358
@@ -82,7 +82,7 @@ properties:
- 1 # SMB3XX_SYSOK_INOK_ACTIVE_HIGH
usb-vbus:
- $ref: "../../regulator/regulator.yaml#"
+ $ref: /schemas/regulator/regulator.yaml#
type: object
properties:
diff --git a/Documentation/devicetree/bindings/power/supply/tps65090-charger.yaml b/Documentation/devicetree/bindings/power/supply/tps65090-charger.yaml
index f2dd38bf078c..586745426341 100644
--- a/Documentation/devicetree/bindings/power/supply/tps65090-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/tps65090-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/tps65090-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/tps65090-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TPS65090 Frontend PMU with Switchmode Charger
diff --git a/Documentation/devicetree/bindings/power/supply/tps65217-charger.yaml b/Documentation/devicetree/bindings/power/supply/tps65217-charger.yaml
index 2c2fe883bb48..7ccf0cdffd3e 100644
--- a/Documentation/devicetree/bindings/power/supply/tps65217-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/tps65217-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/tps65217-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/tps65217-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TPS65217 Charger
diff --git a/Documentation/devicetree/bindings/power/supply/twl4030-charger.yaml b/Documentation/devicetree/bindings/power/supply/twl4030-charger.yaml
index fe3f32a0ea79..d8d3154f9cb1 100644
--- a/Documentation/devicetree/bindings/power/supply/twl4030-charger.yaml
+++ b/Documentation/devicetree/bindings/power/supply/twl4030-charger.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/twl4030-charger.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/twl4030-charger.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TWL4030 BCI (Battery Charger Interface)
diff --git a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-ac-power-supply.yaml b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-ac-power-supply.yaml
index de6a23aee977..5c8369fd3ef7 100644
--- a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-ac-power-supply.yaml
+++ b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-ac-power-supply.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/x-powers,axp20x-ac-power-supply.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/x-powers,axp20x-ac-power-supply.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AXP20x AC power-supply
diff --git a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-battery-power-supply.yaml b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-battery-power-supply.yaml
index d055428ae39f..e0b95ecbbebd 100644
--- a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-battery-power-supply.yaml
+++ b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-battery-power-supply.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/x-powers,axp20x-battery-power-supply.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/x-powers,axp20x-battery-power-supply.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AXP20x Battery power-supply
diff --git a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml
index 0c371b55c9e1..3ce648dd91bd 100644
--- a/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml
+++ b/Documentation/devicetree/bindings/power/supply/x-powers,axp20x-usb-power-supply.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/power/supply/x-powers,axp20x-usb-power-supply.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/power/supply/x-powers,axp20x-usb-power-supply.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: AXP20x USB power-supply
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
index d63ab1dec16d..801c66069121 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/cpus.txt
@@ -5,7 +5,7 @@ Copyright 2013 Freescale Semiconductor Inc.
Power Architecture CPUs in Freescale SOCs are represented in device trees as
per the definition in the Devicetree Specification.
-In addition to the the Devicetree Specification definitions, the properties
+In addition to the Devicetree Specification definitions, the properties
defined below may be present on CPU nodes.
PROPERTIES
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt
index d096cf461d81..4571c857dbe5 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpc5200.txt
@@ -172,7 +172,7 @@ Interrupt controller (fsl,mpc5200-pic) node
The mpc5200 pic binding splits hardware IRQ numbers into two levels. The
split reflects the layout of the PIC hardware itself, which groups
interrupts into one of three groups; CRIT, MAIN or PERP. Also, the
-Bestcomm dma engine has it's own set of interrupt sources which are
+Bestcomm dma engine has its own set of interrupt sources which are
cascaded off of peripheral interrupt 0, which the driver interprets as a
fourth group, SDMA.
diff --git a/Documentation/devicetree/bindings/powerpc/opal/power-mgt.txt b/Documentation/devicetree/bindings/powerpc/opal/power-mgt.txt
index 9d619e955576..d6658d3dd15e 100644
--- a/Documentation/devicetree/bindings/powerpc/opal/power-mgt.txt
+++ b/Documentation/devicetree/bindings/powerpc/opal/power-mgt.txt
@@ -39,7 +39,7 @@ otherwise. The length of all the property arrays must be the same.
- ibm,cpu-idle-state-flags:
Array of unsigned 32-bit values containing the values of the
- flags associated with the the aforementioned idle-states. The
+ flags associated with the aforementioned idle-states. The
flag bits are as follows:
0x00000001 /* Decrementer would stop */
0x00000002 /* Needs timebase restore */
diff --git a/Documentation/devicetree/bindings/ptp/ptp-idt82p33.yaml b/Documentation/devicetree/bindings/ptp/ptp-idt82p33.yaml
index 9bc664f414a1..51381e4cbb1f 100644
--- a/Documentation/devicetree/bindings/ptp/ptp-idt82p33.yaml
+++ b/Documentation/devicetree/bindings/ptp/ptp-idt82p33.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/ptp/ptp-idt82p33.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: IDT 82P33 PTP Clock Device Tree Bindings
+title: IDT 82P33 PTP Clock
description: |
IDT 82P33XXX Synchronization Management Unit (SMU) based PTP clock
diff --git a/Documentation/devicetree/bindings/ptp/ptp-idtcm.yaml b/Documentation/devicetree/bindings/ptp/ptp-idtcm.yaml
index 658cec67743e..7cf32663c806 100644
--- a/Documentation/devicetree/bindings/ptp/ptp-idtcm.yaml
+++ b/Documentation/devicetree/bindings/ptp/ptp-idtcm.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/ptp/ptp-idtcm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: IDT ClockMatrix (TM) PTP Clock Device Tree Bindings
+title: IDT ClockMatrix (TM) PTP Clock
maintainers:
- Vincent Cheng <vincent.cheng.xh@renesas.com>
diff --git a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
index e93e935564fb..4cc3cc7c50be 100644
--- a/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/allwinner,sun4i-a10-pwm.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pwm/allwinner,sun4i-a10-pwm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 PWM Device Tree Bindings
+title: Allwinner A10 PWM
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/pwm/clk-pwm.yaml b/Documentation/devicetree/bindings/pwm/clk-pwm.yaml
new file mode 100644
index 000000000000..ec1768291503
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/clk-pwm.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/clk-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Clock based PWM controller
+
+maintainers:
+ - Nikita Travkin <nikita@trvn.ru>
+
+description: |
+ Some systems have clocks that can be exposed to external devices.
+ (e.g. by muxing them to GPIO pins)
+ It's often possible to control duty-cycle of such clocks which makes them
+ suitable for generating PWM signal.
+
+allOf:
+ - $ref: pwm.yaml#
+
+properties:
+ compatible:
+ const: clk-pwm
+
+ clocks:
+ description: Clock used to generate the signal.
+ maxItems: 1
+
+ "#pwm-cells":
+ const: 2
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - clocks
+
+examples:
+ - |
+ pwm {
+ compatible = "clk-pwm";
+ #pwm-cells = <2>;
+ clocks = <&gcc 0>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_clk_flash_default>;
+ };
diff --git a/Documentation/devicetree/bindings/pwm/intel,keembay-pwm.yaml b/Documentation/devicetree/bindings/pwm/intel,keembay-pwm.yaml
index ec9f6bab798c..5b18a5913ed1 100644
--- a/Documentation/devicetree/bindings/pwm/intel,keembay-pwm.yaml
+++ b/Documentation/devicetree/bindings/pwm/intel,keembay-pwm.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/pwm/intel,keembay-pwm.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel Keem Bay PWM Device Tree Bindings
+title: Intel Keem Bay PWM
maintainers:
- Vijayakannan Ayyathurai <vijayakannan.ayyathurai@intel.com>
diff --git a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
index e4fe2d1bfef5..0088bc8e7c54 100644
--- a/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
+++ b/Documentation/devicetree/bindings/pwm/mediatek,pwm-disp.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/pwm/mediatek,pwm-disp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek DISP_PWM Controller Device Tree Bindings
+title: MediaTek DISP_PWM Controller
maintainers:
- Jitao Shi <jitao.shi@mediatek.com>
@@ -27,6 +27,7 @@ properties:
- items:
- enum:
- mediatek,mt8186-disp-pwm
+ - mediatek,mt8188-disp-pwm
- mediatek,mt8192-disp-pwm
- mediatek,mt8195-disp-pwm
- const: mediatek,mt8183-disp-pwm
diff --git a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
index 033d1fc0f405..554c96b6d0c3 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-mediatek.txt
@@ -9,6 +9,8 @@ Required properties:
- "mediatek,mt7628-pwm": found on mt7628 SoC.
- "mediatek,mt7629-pwm": found on mt7629 SoC.
- "mediatek,mt8183-pwm": found on mt8183 SoC.
+ - "mediatek,mt8195-pwm", "mediatek,mt8183-pwm": found on mt8195 SoC.
+ - "mediatek,mt8365-pwm": found on mt8365 SoC.
- "mediatek,mt8516-pwm": found on mt8516 SoC.
- reg: physical base address and length of the controller's registers.
- #pwm-cells: must be 2. See pwm.yaml in this directory for a description of
@@ -18,6 +20,7 @@ Required properties:
has no clocks
- "top": the top clock generator
- "main": clock used by the PWM core
+ - "pwm1-3": the three per PWM clocks for mt8365
- "pwm1-8": the eight per PWM clocks for mt2712
- "pwm1-6": the six per PWM clocks for mt7622
- "pwm1-5": the five per PWM clocks for mt7623
diff --git a/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml b/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml
index a336ff9364a9..f2d1dc7e7b3f 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml
+++ b/Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml
@@ -21,6 +21,7 @@ properties:
- const: rockchip,rk2928-pwm
- items:
- enum:
+ - rockchip,rk3128-pwm
- rockchip,rk3368-pwm
- rockchip,rk3399-pwm
- rockchip,rv1108-pwm
@@ -30,6 +31,7 @@ properties:
- rockchip,px30-pwm
- rockchip,rk3308-pwm
- rockchip,rk3568-pwm
+ - rockchip,rk3588-pwm
- const: rockchip,rk3328-pwm
reg:
diff --git a/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml b/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml
index 24ace6e1e5ec..63e1161a87de 100644
--- a/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml
+++ b/Documentation/devicetree/bindings/regulator/dlg,da9121.yaml
@@ -83,6 +83,7 @@ properties:
regulators:
type: object
+ additionalProperties: false
description: |
List of regulators provided by the device
diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml b/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml
index f7e3d8fd3bf3..6c3371d706bb 100644
--- a/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.yaml
@@ -85,6 +85,9 @@ properties:
- current
default: voltage
+ vin-supply:
+ description: Input supply phandle.
+
required:
- compatible
- regulator-name
diff --git a/Documentation/devicetree/bindings/regulator/maxim,max77802.yaml b/Documentation/devicetree/bindings/regulator/maxim,max77802.yaml
index 236348c4710c..71138c611b6c 100644
--- a/Documentation/devicetree/bindings/regulator/maxim,max77802.yaml
+++ b/Documentation/devicetree/bindings/regulator/maxim,max77802.yaml
@@ -79,6 +79,7 @@ patternProperties:
patternProperties:
regulator-state-(standby|mem|disk):
type: object
+ additionalProperties: true
properties:
regulator-mode: false
diff --git a/Documentation/devicetree/bindings/regulator/maxim,max8997.yaml b/Documentation/devicetree/bindings/regulator/maxim,max8997.yaml
index 4321f061a7f6..2b266ea43716 100644
--- a/Documentation/devicetree/bindings/regulator/maxim,max8997.yaml
+++ b/Documentation/devicetree/bindings/regulator/maxim,max8997.yaml
@@ -111,6 +111,7 @@ properties:
regulators:
type: object
+ additionalProperties: false
description:
List of child nodes that specify the regulators.
diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6331-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6331-regulator.yaml
new file mode 100644
index 000000000000..771cc134393c
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6331-regulator.yaml
@@ -0,0 +1,273 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mediatek,mt6331-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MT6331 Regulator from MediaTek Integrated
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+description: |
+ The MT6331 PMIC provides 6 BUCK and 21 LDO (Low Dropout) regulators
+ and nodes are named according to the regulator type:
+ buck-<name> and ldo-<name>.
+ MT6331 regulators node should be sub node of the MT6397 MFD node.
+
+patternProperties:
+ "^buck-v(core2|io18|dvfs11|dvfs12|dvfs13|dvfs14)$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^v(core2|io18|dvfs11|dvfs12|dvfs13|dvfs14)$"
+
+ unevaluatedProperties: false
+
+ "^ldo-v(avdd32aud|auxa32)$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^v(avdd32aud|auxa32)$"
+
+ unevaluatedProperties: false
+
+ "^ldo-v(dig18|emc33|ibr|mc|mch|mipi|rtc|sram|usb10)$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^v(dig18|emc33|ibr|mc|mch|mipi|rtc|sram|usb10)$"
+
+ unevaluatedProperties: false
+
+ "^ldo-vcam(a|af|d|io)$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^vcam(a|af|d|io)$"
+
+ unevaluatedProperties: false
+
+ "^ldo-vtcxo[12]$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^vtcxo[12]$"
+
+ required:
+ - regulator-name
+
+ unevaluatedProperties: false
+
+ "^ldo-vgp[1234]$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^vgp[12]$"
+
+ required:
+ - regulator-name
+
+ unevaluatedProperties: false
+
+additionalProperties: false
+
+examples:
+ - |
+ pmic {
+ regulators {
+ mt6331_vdvfs11_reg: buck-vdvfs11 {
+ regulator-name = "vdvfs11";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <1>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6331_vdvfs12_reg: buck-vdvfs12 {
+ regulator-name = "vdvfs12";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <1>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6331_vdvfs13_reg: buck-vdvfs13 {
+ regulator-name = "vdvfs13";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <1>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6331_vdvfs14_reg: buck-vdvfs14 {
+ regulator-name = "vdvfs14";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <1>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6331_vcore2_reg: buck-vcore2 {
+ regulator-name = "vcore2";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <1>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6331_vio18_reg: buck-vio18 {
+ regulator-name = "vio18";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <0>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6331_vtcxo1_reg: ldo-vtcxo1 {
+ regulator-name = "vtcxo1";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ mt6331_vtcxo2_reg: ldo-vtcxo2 {
+ regulator-name = "vtcxo2";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ mt6331_avdd32_aud_reg: ldo-avdd32aud {
+ regulator-name = "avdd32_aud";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <3200000>;
+ };
+ mt6331_vauxa32_reg: ldo-vauxa32 {
+ regulator-name = "vauxa32";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <3200000>;
+ };
+ mt6331_vcama_reg: ldo-vcama {
+ regulator-name = "vcama";
+ regulator-min-microvolt = <1500000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ };
+ mt6331_vio28_reg: ldo-vio28 {
+ regulator-name = "vio28";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ mt6331_vcamaf_reg: ldo-vcamaf {
+ regulator-name = "vcam_af";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vmc_reg: ldo-vmc {
+ regulator-name = "vmc";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vmch_reg: ldo-vmch {
+ regulator-name = "vmch";
+ regulator-min-microvolt = <3000000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vemc33_reg: ldo-vemc33 {
+ regulator-name = "vemc33";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vgp1_reg: ldo-vgp1 {
+ regulator-name = "vgp1";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vsim1_reg: ldo-vsim1 {
+ regulator-name = "vsim1";
+ regulator-min-microvolt = <1700000>;
+ regulator-max-microvolt = <3100000>;
+ };
+ mt6331_vsim2_reg: ldo-vsim2 {
+ regulator-name = "vsim2";
+ regulator-min-microvolt = <1700000>;
+ regulator-max-microvolt = <3100000>;
+ };
+ mt6331_vmipi_reg: ldo-vmipi {
+ regulator-name = "vmipi";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vibr_reg: ldo-vibr {
+ regulator-name = "vibr";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ mt6331_vgp4_reg: ldo-vgp4 {
+ regulator-name = "vgp4";
+ regulator-min-microvolt = <1600000>;
+ regulator-max-microvolt = <2200000>;
+ };
+ mt6331_vcamd_reg: ldo-vcamd {
+ regulator-name = "vcamd";
+ regulator-min-microvolt = <900000>;
+ regulator-max-microvolt = <1500000>;
+ };
+ mt6331_vusb10_reg: ldo-vusb10 {
+ regulator-name = "vusb";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1300000>;
+ regulator-boot-on;
+ };
+ mt6331_vcamio_reg: ldo-vcamio {
+ regulator-name = "vcam_io";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ mt6331_vsram_reg: ldo-vsram {
+ regulator-name = "vsram";
+ regulator-min-microvolt = <1012500>;
+ regulator-max-microvolt = <1012500>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+ mt6331_vgp2_reg: ldo-vgp2 {
+ regulator-name = "vgp2";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1500000>;
+ regulator-boot-on;
+ };
+ mt6331_vgp3_reg: ldo-vgp3 {
+ regulator-name = "vgp3";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ mt6331_vrtc_reg: ldo-vrtc {
+ regulator-name = "vrtc";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-always-on;
+ };
+ mt6331_vdig18_reg: ldo-vdig18 {
+ regulator-name = "dvdd18_dig";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6332-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6332-regulator.yaml
new file mode 100644
index 000000000000..3218f43e6957
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6332-regulator.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mediatek,mt6332-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MT6332 Regulator from MediaTek Integrated
+
+maintainers:
+ - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
+
+description: |
+ The MT6332 Companion PMIC provides 6 BUCK and 4 LDO (Low Dropout)
+ regulators and nodes are named according to the regulator type:
+ buck-<name> and ldo-<name>.
+ MT6332 regulators node should be sub node of the MT6397 MFD node.
+
+patternProperties:
+ "^buck-v(dram|dvfs2|pa|rf18a|rf18b|sbst)$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^v(dram|dvfs2|pa|rf18a|rf18b|sbst)$"
+
+ unevaluatedProperties: false
+
+ "^ldo-v(bif28|dig18|sram|usb33)$":
+ type: object
+ $ref: "regulator.yaml#"
+
+ properties:
+ regulator-name:
+ pattern: "^v(bif28|dig18|sram|usb33)$"
+
+ unevaluatedProperties: false
+
+additionalProperties: false
+
+examples:
+ - |
+ pmic {
+ regulators {
+ mt6332_vdram_reg: buck-vdram {
+ regulator-name = "vdram";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-ramp-delay = <12500>;
+ regulator-allowed-modes = <0 1>;
+ regulator-always-on;
+ };
+ mt6332_vdvfs2_reg: buck-vdvfs2 {
+ regulator-name = "vdvfs2";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1312500>;
+ regulator-ramp-delay = <12500>;
+ regulator-enable-ramp-delay = <1>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6332_vpa_reg: buck-vpa {
+ regulator-name = "vpa";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3400000>;
+ };
+ mt6332_vrf18a_reg: buck-vrf18a {
+ regulator-name = "vrf18a";
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <2240625>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6332_vrf18b_reg: buck-vrf18b {
+ regulator-name = "vrf18b";
+ regulator-min-microvolt = <1050000>;
+ regulator-max-microvolt = <2240625>;
+ regulator-allowed-modes = <0 1>;
+ };
+ mt6332_vsbst_reg: buck-vsbst {
+ regulator-name = "vsbst";
+ regulator-min-microvolt = <3500000>;
+ regulator-max-microvolt = <7468750>;
+ };
+ mt6332_vauxb32_reg: ldo-vauxb32 {
+ regulator-name = "vauxb32";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <3200000>;
+ };
+ mt6332_vbif28_reg: ldo-vbif28 {
+ regulator-name = "vbif28";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ };
+ mt6332_vdig18_reg: ldo-vdig18 {
+ regulator-name = "vdig18";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+ mt6332_vsram_reg: ldo-vsram {
+ regulator-name = "vauxa32";
+ regulator-min-microvolt = <700000>;
+ regulator-max-microvolt = <1493750>;
+ regulator-always-on;
+ };
+ mt6332_vusb33_reg: ldo-vusb33 {
+ regulator-name = "vusb33";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml b/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml
index 90727fdc1283..7023c597c3ed 100644
--- a/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml
+++ b/Documentation/devicetree/bindings/regulator/mps,mp5416.yaml
@@ -15,6 +15,7 @@ properties:
compatible:
enum:
- mps,mp5416
+ - mps,mp5496
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/regulator/mt6315-regulator.yaml b/Documentation/devicetree/bindings/regulator/mt6315-regulator.yaml
index 37402c370fbb..364b58730be2 100644
--- a/Documentation/devicetree/bindings/regulator/mt6315-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/mt6315-regulator.yaml
@@ -29,6 +29,7 @@ properties:
"^vbuck[1-4]$":
type: object
$ref: "regulator.yaml#"
+ unevaluatedProperties: false
properties:
regulator-compatible:
diff --git a/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml b/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
index b539781e39aa..835b53302db8 100644
--- a/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
@@ -47,12 +47,6 @@ properties:
description:
Properties for single LDO regulator.
- properties:
- regulator-name:
- pattern: "^LDO[1-5]$"
- description:
- should be "LDO1", ..., "LDO5"
-
unevaluatedProperties: false
"^BUCK[1-6]$":
@@ -62,11 +56,6 @@ properties:
Properties for single BUCK regulator.
properties:
- regulator-name:
- pattern: "^BUCK[1-6]$"
- description:
- should be "BUCK1", ..., "BUCK6"
-
nxp,dvs-run-voltage:
$ref: "/schemas/types.yaml#/definitions/uint32"
minimum: 600000
diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
deleted file mode 100644
index 3d78d507e29f..000000000000
--- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
+++ /dev/null
@@ -1,92 +0,0 @@
-Bindings for the Generic PWM Regulator
-======================================
-
-Currently supports 2 modes of operation:
-
-Voltage Table: When in this mode, a voltage table (See below) of
- predefined voltage <=> duty-cycle values must be
- provided via DT. Limitations are that the regulator can
- only operate at the voltages supplied in the table.
- Intermediary duty-cycle values which would normally
- allow finer grained voltage selection are ignored and
- rendered useless. Although more control is given to
- the user if the assumptions made in continuous-voltage
- mode do not reign true.
-
-Continuous Voltage: This mode uses the regulator's maximum and minimum
- supplied voltages specified in the
- regulator-{min,max}-microvolt properties to calculate
- appropriate duty-cycle values. This allows for a much
- more fine grained solution when compared with
- voltage-table mode above. This solution does make an
- assumption that a %50 duty-cycle value will cause the
- regulator voltage to run at half way between the
- supplied max_uV and min_uV values.
-
-Required properties:
---------------------
-- compatible: Should be "pwm-regulator"
-
-- pwms: PWM specification (See: ../pwm/pwm.txt)
-
-Only required for Voltage Table Mode:
-- voltage-table: Voltage and Duty-Cycle table consisting of 2 cells
- First cell is voltage in microvolts (uV)
- Second cell is duty-cycle in percent (%)
-
-Optional properties for Continuous mode:
-- pwm-dutycycle-unit: Integer value encoding the duty cycle unit. If not
- defined, <100> is assumed, meaning that
- pwm-dutycycle-range contains values expressed in
- percent.
-
-- pwm-dutycycle-range: Should contain 2 entries. The first entry is encoding
- the dutycycle for regulator-min-microvolt and the
- second one the dutycycle for regulator-max-microvolt.
- Duty cycle values are expressed in pwm-dutycycle-unit.
- If not defined, <0 100> is assumed.
-
-NB: To be clear, if voltage-table is provided, then the device will be used
-in Voltage Table Mode. If no voltage-table is provided, then the device will
-be used in Continuous Voltage Mode.
-
-Optional properties:
---------------------
-- enable-gpios: GPIO to use to enable/disable the regulator
-
-Any property defined as part of the core regulator binding can also be used.
-(See: ../regulator/regulator.txt)
-
-Continuous Voltage With Enable GPIO Example:
- pwm_regulator {
- compatible = "pwm-regulator";
- pwms = <&pwm1 0 8448 0>;
- enable-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
- regulator-min-microvolt = <1016000>;
- regulator-max-microvolt = <1114000>;
- regulator-name = "vdd_logic";
- /* unit == per-mille */
- pwm-dutycycle-unit = <1000>;
- /*
- * Inverted PWM logic, and the duty cycle range is limited
- * to 30%-70%.
- */
- pwm-dutycycle-range = <700 300>; /* */
- };
-
-Voltage Table Example:
- pwm_regulator {
- compatible = "pwm-regulator";
- pwms = <&pwm1 0 8448 0>;
- regulator-min-microvolt = <1016000>;
- regulator-max-microvolt = <1114000>;
- regulator-name = "vdd_logic";
-
- /* Voltage Duty-Cycle */
- voltage-table = <1114000 0>,
- <1095000 10>,
- <1076000 20>,
- <1056000 30>,
- <1036000 40>,
- <1016000 50>;
- };
diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.yaml b/Documentation/devicetree/bindings/regulator/pwm-regulator.yaml
new file mode 100644
index 000000000000..82b6f2fde422
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.yaml
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/pwm-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for the Generic PWM Regulator
+
+maintainers:
+ - Brian Norris <briannorris@chromium.org>
+ - Lee Jones <lee@kernel.org>
+ - Alexandre Courbot <acourbot@nvidia.com>
+
+description: |
+ Currently supports 2 modes of operation:
+
+ Voltage Table:
+ When in this mode, a voltage table (See below) of predefined voltage <=>
+ duty-cycle values must be provided via DT. Limitations are that the
+ regulator can only operate at the voltages supplied in the table.
+ Intermediary duty-cycle values which would normally allow finer grained
+ voltage selection are ignored and rendered useless. Although more control
+ is given to the user if the assumptions made in continuous-voltage mode do
+ not reign true.
+
+ Continuous Voltage:
+ This mode uses the regulator's maximum and minimum supplied voltages
+ specified in the regulator-{min,max}-microvolt properties to calculate
+ appropriate duty-cycle values. This allows for a much more fine grained
+ solution when compared with voltage-table mode above. This solution does
+ make an assumption that a %50 duty-cycle value will cause the regulator
+ voltage to run at half way between the supplied max_uV and min_uV values.
+
+ If voltage-table is provided, then the device will be used in Voltage Table
+ Mode. If no voltage-table is provided, then the device will be used in
+ Continuous Voltage Mode.
+
+allOf:
+ - $ref: regulator.yaml#
+
+properties:
+ compatible:
+ const: pwm-regulator
+
+ pwms:
+ maxItems: 1
+
+ voltage-table:
+ description: Voltage and Duty-Cycle table.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: voltage in microvolts (uV)
+ - description: duty-cycle in percent (%)
+
+ enable-gpios:
+ description: Regulator enable GPIO
+ maxItems: 1
+
+ # Optional properties for Continuous mode:
+ pwm-dutycycle-unit:
+ description:
+ Integer value encoding the duty cycle unit. If not
+ defined, <100> is assumed, meaning that
+ pwm-dutycycle-range contains values expressed in
+ percent.
+ default: 100
+
+ pwm-dutycycle-range:
+ description:
+ Should contain 2 entries. The first entry is encoding
+ the dutycycle for regulator-min-microvolt and the
+ second one the dutycycle for regulator-max-microvolt.
+ Duty cycle values are expressed in pwm-dutycycle-unit.
+ If not defined, <0 100> is assumed.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ items:
+ - description: the dutycycle for regulator-min-microvolt
+ - description: the dutycycle for regulator-max-microvolt
+ default: [ 0 100 ]
+
+required:
+ - compatible
+ - pwms
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ // Continuous Voltage With Enable GPIO Example:
+ regulator {
+ compatible = "pwm-regulator";
+ pwms = <&pwm1 0 8448 0>;
+ enable-gpios = <&gpio0 23 GPIO_ACTIVE_HIGH>;
+ regulator-min-microvolt = <1016000>;
+ regulator-max-microvolt = <1114000>;
+ regulator-name = "vdd_logic";
+ /* unit == per-mille */
+ pwm-dutycycle-unit = <1000>;
+ /*
+ * Inverted PWM logic, and the duty cycle range is limited
+ * to 30%-70%.
+ */
+ pwm-dutycycle-range = <700 300>; /* */
+ };
+
+ - |
+ // Voltage Table Example:
+ regulator {
+ compatible = "pwm-regulator";
+ pwms = <&pwm1 0 8448 0>;
+ regulator-min-microvolt = <1016000>;
+ regulator-max-microvolt = <1114000>;
+ regulator-name = "vdd_logic";
+
+ /* Voltage Duty-Cycle */
+ voltage-table = <1114000 0>,
+ <1095000 10>,
+ <1076000 20>,
+ <1056000 30>,
+ <1036000 40>,
+ <1016000 50>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml
index 9a36bee750af..90c3bda31c23 100644
--- a/Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/qcom,rpmh-regulator.yaml
@@ -37,6 +37,8 @@ description: |
For PM6150, smps1 - smps5, ldo1 - ldo19
For PM6150L, smps1 - smps8, ldo1 - ldo11, bob
For PM6350, smps1 - smps5, ldo1 - ldo22
+ For PM660, smps1 - smps6, ldo1 - ldo3, ldo5 - ldo19
+ For PM660L, smps1 - smps3, smps5, ldo1 - ldo8, bob
For PM7325, smps1 - smps8, ldo1 - ldo19
For PM8005, smps1 - smps4
For PM8009, smps1 - smps2, ldo1 - ldo7
@@ -57,6 +59,8 @@ properties:
- qcom,pm6150-rpmh-regulators
- qcom,pm6150l-rpmh-regulators
- qcom,pm6350-rpmh-regulators
+ - qcom,pm660-rpmh-regulators
+ - qcom,pm660l-rpmh-regulators
- qcom,pm7325-rpmh-regulators
- qcom,pm8005-rpmh-regulators
- qcom,pm8009-rpmh-regulators
@@ -99,12 +103,16 @@ properties:
type: object
$ref: "regulator.yaml#"
description: BOB regulator node.
+ dependencies:
+ regulator-allow-set-load: ["regulator-allowed-modes"]
patternProperties:
"^(smps|ldo|lvs)[0-9]+$":
type: object
$ref: "regulator.yaml#"
description: smps/ldo regulator nodes(s).
+ dependencies:
+ regulator-allow-set-load: ["regulator-allowed-modes"]
required:
- compatible
@@ -148,6 +156,38 @@ allOf:
properties:
compatible:
enum:
+ - qcom,pm660-rpmh-regulators
+ then:
+ properties:
+ vdd-l1-l6-l7-supply: true
+ vdd-l2-l3-supply: true
+ vdd-l5-supply: true
+ vdd-l8-l9-l10-l11-l12-l13-l14-supply: true
+ vdd-l15-l16-l17-l18-l19-supply: true
+ patternProperties:
+ "^vdd-s[1-6]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,pm660l-rpmh-regulators
+ then:
+ properties:
+ vdd-bob-supply:
+ description: BOB regulator parent supply phandle.
+ vdd-l1-l9-l10-supply: true
+ vdd-l2-supply: true
+ vdd-l3-l5-l7-l8-supply: true
+ vdd-l4-l6-supply: true
+ vdd-s3-s4-supply: true
+ patternProperties:
+ "^vdd-s[125]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ enum:
- qcom,pm7325-rpmh-regulators
then:
properties:
diff --git a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.yaml
index 6a9a7eed466f..961eed51912c 100644
--- a/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/qcom,smd-rpm-regulator.yaml
@@ -24,12 +24,26 @@ description:
For mp5496, s2
+ For pm2250, s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
+ l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22
+
+ For pm6125 s1, s2, s3, s4, s5, s6, s7, s8, l1, l2, l3, l5, l6, l7, l8, l9,
+ l10, l22, l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24
+
+ For pm660, s1, s2, s3, s4, s5, s6, l1, l2, l3, l5, l6, l7, l8, l9, l10, l22,
+ l12, l13, l14, l15, l16, l17, l18, l19
+
+ For pm660l s1, s2, s3, s5, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, bob
+
For pm8226, s1, s2, s3, s4, s5, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10,
l11, l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, l25,
l26, l27, l28, lvs1
For pm8841, s1, s2, s3, s4, s5, s6, s7, s8
+ For pm8909, s1, s2, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
+ l14, l15, l17, l18
+
For pm8916, s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
l12, l13, l14, l15, l16, l17, l18
@@ -49,11 +63,6 @@ description:
l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19,
l20, l21, l22, l23, l24, l25, l26, l27, l28, lvs1, lvs2
- For pm660, s1, s2, s3, s4, s5, s6, l1, l2, l3, l5, l6, l7, l8, l9, l10, l22,
- l12, l13, l14, l15, l16, l17, l18, l19
-
- For pm660l s1, s2, s3, s5, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, bob
-
For pma8084, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, l1, l2, l3,
l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19,
l20, l21, l22, l23, l24, l25, l26, l27, lvs1, lvs2, lvs3, lvs4, 5vs1
@@ -65,9 +74,6 @@ description:
For pms405, s1, s2, s3, s4, s5, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
l12, l13
- For pm2250, s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11,
- l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22
-
maintainers:
- Andy Gross <agross@kernel.org>
- Bjorn Andersson <bjorn.andersson@linaro.org>
@@ -76,21 +82,23 @@ properties:
compatible:
enum:
- qcom,rpm-mp5496-regulators
+ - qcom,rpm-pm2250-regulators
+ - qcom,rpm-pm6125-regulators
+ - qcom,rpm-pm660-regulators
+ - qcom,rpm-pm660l-regulators
- qcom,rpm-pm8226-regulators
- qcom,rpm-pm8841-regulators
+ - qcom,rpm-pm8909-regulators
- qcom,rpm-pm8916-regulators
- qcom,rpm-pm8941-regulators
- qcom,rpm-pm8950-regulators
- qcom,rpm-pm8953-regulators
- qcom,rpm-pm8994-regulators
- qcom,rpm-pm8998-regulators
- - qcom,rpm-pm660-regulators
- - qcom,rpm-pm660l-regulators
- qcom,rpm-pma8084-regulators
- qcom,rpm-pmi8994-regulators
- qcom,rpm-pmi8998-regulators
- qcom,rpm-pms405-regulators
- - qcom,rpm-pm2250-regulators
patternProperties:
".*-supply$":
diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
deleted file mode 100644
index c2a39b121b1b..000000000000
--- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
+++ /dev/null
@@ -1,347 +0,0 @@
-Qualcomm SPMI Regulators
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be one of:
- "qcom,pm8004-regulators"
- "qcom,pm8005-regulators"
- "qcom,pm8226-regulators"
- "qcom,pm8841-regulators"
- "qcom,pm8916-regulators"
- "qcom,pm8941-regulators"
- "qcom,pm8950-regulators"
- "qcom,pm8994-regulators"
- "qcom,pmi8994-regulators"
- "qcom,pm660-regulators"
- "qcom,pm660l-regulators"
- "qcom,pms405-regulators"
-
-- interrupts:
- Usage: optional
- Value type: <prop-encoded-array>
- Definition: List of OCP interrupts.
-
-- interrupt-names:
- Usage: required if 'interrupts' property present
- Value type: <string-array>
- Definition: List of strings defining the names of the
- interrupts in the 'interrupts' property 1-to-1.
- Supported values are "ocp-<regulator_name>", where
- <regulator_name> corresponds to a voltage switch
- type regulator.
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_s5-supply:
-- vdd_s6-supply:
-- vdd_s7-supply:
-- vdd_s8-supply:
- Usage: optional (pm8841 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_l1_l3-supply:
-- vdd_l2-supply:
-- vdd_l4_l5_l6-supply:
-- vdd_l7-supply:
-- vdd_l8_l11_l14_l15_l16-supply:
-- vdd_l9_l10_l12_l13_l17_l18-supply:
- Usage: optional (pm8916 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_l1_l3-supply:
-- vdd_l2_lvs_1_2_3-supply:
-- vdd_l4_l11-supply:
-- vdd_l5_l7-supply:
-- vdd_l6_l12_l14_l15-supply:
-- vdd_l8_l16_l18_19-supply:
-- vdd_l9_l10_l17_l22-supply:
-- vdd_l13_l20_l23_l24-supply:
-- vdd_l21-supply:
-- vin_5vs-supply:
- Usage: optional (pm8941 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_s4-supply:
-- vdd_s5-supply:
-- vdd_s6-supply:
-- vdd_l1_l19-supply:
-- vdd_l2_l23-supply:
-- vdd_l3-supply:
-- vdd_l4_l5_l6_l7_l16-supply:
-- vdd_l8_l11_l12_l17_l22-supply:
-- vdd_l9_l10_l13_l14_l15_l18-supply:
-- vdd_l20-supply:
-- vdd_l21-supply:
- Usage: optional (pm8950 only)
- Value type: <phandle>
- Definition: reference to regulator supplying the input pin, as
- described in the data sheet
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_s5-supply:
-- vdd_s6-supply:
-- vdd_s7-supply:
-- vdd_s8-supply:
-- vdd_s9-supply:
-- vdd_s10-supply:
-- vdd_s11-supply:
-- vdd_s12-supply:
-- vdd_l1-supply:
-- vdd_l2_l26_l28-supply:
-- vdd_l3_l11-supply:
-- vdd_l4_l27_l31-supply:
-- vdd_l5_l7-supply:
-- vdd_l6_l12_l32-supply:
-- vdd_l8_l16_l30-supply:
-- vdd_l9_l10_l18_l22-supply:
-- vdd_l13_l19_l23_l24-supply:
-- vdd_l14_l15-supply:
-- vdd_l17_l29-supply:
-- vdd_l20_l21-supply:
-- vdd_l25-supply:
-- vdd_lvs_1_2-supply:
- Usage: optional (pm8994 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_l1-supply:
- Usage: optional (pmi8994 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_l1_l6_l7-supply:
-- vdd_l2_l3-supply:
-- vdd_l5-supply:
-- vdd_l8_l9_l10_l11_l12_l13_l14-supply:
-- vdd_l15_l16_l17_l18_l19-supply:
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s5-supply:
-- vdd_s6-supply:
- Usage: optional (pm660 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_l1_l9_l10-supply:
-- vdd_l2-supply:
-- vdd_l3_l5_l7_l8-supply:
-- vdd_l4_l6-supply:
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_s5-supply:
- Usage: optional (pm660l only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- vdd_l1_l2-supply:
-- vdd_l3_l8-supply:
-- vdd_l4-supply:
-- vdd_l5_l6-supply:
-- vdd_l10_l11_l12_l13-supply:
-- vdd_l7-supply:
-- vdd_l9-supply:
-- vdd_s1-supply:
-- vdd_s2-supply:
-- vdd_s3-supply:
-- vdd_s4-supply:
-- vdd_s5-supply
- Usage: optional (pms405 only)
- Value type: <phandle>
- Definition: Reference to regulator supplying the input pin, as
- described in the data sheet.
-
-- qcom,saw-reg:
- Usage: optional
- Value type: <phandle>
- Description: Reference to syscon node defining the SAW registers.
-
-
-The regulator node houses sub-nodes for each regulator within the device. Each
-sub-node is identified using the node's name, with valid values listed for each
-of the PMICs below.
-
-pm8004:
- s2, s5
-
-pm8005:
- s1, s2, s3, s4
-
-pm8841:
- s1, s2, s3, s4, s5, s6, s7, s8
-
-pm8916:
- s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
- l14, l15, l16, l17, l18
-
-pm8941:
- s1, s2, s3, s4, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13,
- l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, lvs1, lvs2, lvs3,
- 5vs1, 5vs2
-
-pm8994:
- s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, l1, l2, l3, l4, l5,
- l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
- l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2
-
-pmi8994:
- s1, s2, s3, l1
-
-The content of each sub-node is defined by the standard binding for regulators -
-see regulator.txt - with additional custom properties described below:
-
-- regulator-initial-mode:
- Usage: optional
- Value type: <u32>
- Description: 2 = Set initial mode to auto mode (automatically select
- between HPM and LPM); not available on boost type
- regulators.
-
- 1 = Set initial mode to high power mode (HPM), also referred
- to as NPM. HPM consumes more ground current than LPM, but
- it can source significantly higher load current. HPM is not
- available on boost type regulators. For voltage switch type
- regulators, HPM implies that over current protection and
- soft start are active all the time.
-
- 0 = Set initial mode to low power mode (LPM).
-
-- qcom,ocp-max-retries:
- Usage: optional
- Value type: <u32>
- Description: Maximum number of times to try toggling a voltage switch
- off and back on as a result of consecutive over current
- events.
-
-- qcom,ocp-retry-delay:
- Usage: optional
- Value type: <u32>
- Description: Time to delay in milliseconds between each voltage switch
- toggle after an over current event takes place.
-
-- qcom,pin-ctrl-enable:
- Usage: optional
- Value type: <u32>
- Description: Bit mask specifying which hardware pins should be used to
- enable the regulator, if any; supported bits are:
- 0 = ignore all hardware enable signals
- BIT(0) = follow HW0_EN signal
- BIT(1) = follow HW1_EN signal
- BIT(2) = follow HW2_EN signal
- BIT(3) = follow HW3_EN signal
-
-- qcom,pin-ctrl-hpm:
- Usage: optional
- Value type: <u32>
- Description: Bit mask specifying which hardware pins should be used to
- force the regulator into high power mode, if any;
- supported bits are:
- 0 = ignore all hardware enable signals
- BIT(0) = follow HW0_EN signal
- BIT(1) = follow HW1_EN signal
- BIT(2) = follow HW2_EN signal
- BIT(3) = follow HW3_EN signal
- BIT(4) = follow PMIC awake state
-
-- qcom,vs-soft-start-strength:
- Usage: optional
- Value type: <u32>
- Description: This property sets the soft start strength for voltage
- switch type regulators; supported values are:
- 0 = 0.05 uA
- 1 = 0.25 uA
- 2 = 0.55 uA
- 3 = 0.75 uA
-
-- qcom,saw-slave:
- Usage: optional
- Value type: <boo>
- Description: SAW controlled gang slave. Will not be configured.
-
-- qcom,saw-leader:
- Usage: optional
- Value type: <boo>
- Description: SAW controlled gang leader. Will be configured as
- SAW regulator.
-
-Example:
-
- regulators {
- compatible = "qcom,pm8941-regulators";
- vdd_l1_l3-supply = <&s1>;
-
- s1: s1 {
- regulator-min-microvolt = <1300000>;
- regulator-max-microvolt = <1400000>;
- };
-
- ...
-
- l1: l1 {
- regulator-min-microvolt = <1225000>;
- regulator-max-microvolt = <1300000>;
- };
-
- ....
- };
-
-Example 2:
-
- saw3: syscon@9A10000 {
- compatible = "syscon";
- reg = <0x9A10000 0x1000>;
- };
-
- ...
-
- spm-regulators {
- compatible = "qcom,pm8994-regulators";
- qcom,saw-reg = <&saw3>;
- s8 {
- qcom,saw-slave;
- };
- s9 {
- qcom,saw-slave;
- };
- s10 {
- qcom,saw-slave;
- };
- pm8994_s11_saw: s11 {
- qcom,saw-leader;
- regulator-always-on;
- regulator-min-microvolt = <900000>;
- regulator-max-microvolt = <1140000>;
- };
- };
diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.yaml
new file mode 100644
index 000000000000..bdf34c2de96b
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.yaml
@@ -0,0 +1,354 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/qcom,spmi-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SPMI Regulators
+
+maintainers:
+ - Robert Marko <robimarko@gmail.com>
+
+properties:
+ compatible:
+ enum:
+ - qcom,pm6125-regulators
+ - qcom,pm660-regulators
+ - qcom,pm660l-regulators
+ - qcom,pm8004-regulators
+ - qcom,pm8005-regulators
+ - qcom,pm8226-regulators
+ - qcom,pm8841-regulators
+ - qcom,pm8916-regulators
+ - qcom,pm8941-regulators
+ - qcom,pm8950-regulators
+ - qcom,pm8994-regulators
+ - qcom,pmi8994-regulators
+ - qcom,pmp8074-regulators
+ - qcom,pms405-regulators
+
+ qcom,saw-reg:
+ description: Reference to syscon node defining the SAW registers
+ $ref: /schemas/types.yaml#/definitions/phandle
+
+patternProperties:
+ "^(5vs[1-2]|(l|s)[1-9][0-9]?|lvs[1-3])$":
+ description: List of regulators and its properties
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ qcom,ocp-max-retries:
+ description:
+ Maximum number of times to try toggling a voltage switch off and
+ back on as a result of consecutive over current events
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ qcom,ocp-retry-delay:
+ description:
+ Time to delay in milliseconds between each voltage switch toggle
+ after an over current event takes place
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ qcom,pin-ctrl-enable:
+ description:
+ Bit mask specifying which hardware pins should be used to enable the
+ regulator, if any.
+ Supported bits are
+ 0 = ignore all hardware enable signals
+ BIT(0) = follow HW0_EN signal
+ BIT(1) = follow HW1_EN signal
+ BIT(2) = follow HW2_EN signal
+ BIT(3) = follow HW3_EN signal
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 15
+
+ qcom,pin-ctrl-hpm:
+ description:
+ Bit mask specifying which hardware pins should be used to force the
+ regulator into high power mode, if any.
+ Supported bits are
+ 0 = ignore all hardware enable signals
+ BIT(0) = follow HW0_EN signal
+ BIT(1) = follow HW1_EN signal
+ BIT(2) = follow HW2_EN signal
+ BIT(3) = follow HW3_EN signal
+ BIT(4) = follow PMIC awake state
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+
+ qcom,vs-soft-start-strength:
+ description:
+ This property sets the soft start strength for voltage switch type
+ regulators.
+ Supported values are
+ 0 = 0.05 uA
+ 1 = 0.25 uA
+ 2 = 0.55 uA
+ 3 = 0.75 uA
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 3
+
+ qcom,saw-slave:
+ description: SAW controlled gang slave. Will not be configured.
+ type: boolean
+
+ qcom,saw-leader:
+ description:
+ SAW controlled gang leader. Will be configured as SAW regulator.
+ type: boolean
+
+required:
+ - compatible
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm6125-regulators
+ then:
+ properties:
+ vdd_l1_l7_l17_l18-supply: true
+ vdd_l2_l3_l4-supply: true
+ vdd_l5_l15_l19_l20_l21_l22-supply: true
+ vdd_l6_l8-supply: true
+ vdd_l9_l11-supply: true
+ vdd_l10_l13_l14-supply: true
+ vdd_l12_l16-supply: true
+ vdd_l23_l24-supply: true
+ patternProperties:
+ "^vdd_s[1-8]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm660-regulators
+ then:
+ properties:
+ vdd_l15_l16_l17_l18_l19-supply: true
+ vdd_l1_l6_l7-supply: true
+ vdd_l2_l3-supply: true
+ vdd_l5-supply: true
+ vdd_l8_l9_l10_l11_l12_l13_l14-supply: true
+ patternProperties:
+ "^vdd_s[1-6]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm660l-regulators
+ then:
+ properties:
+ vdd_l1_l9_l10-supply: true
+ vdd_l2-supply: true
+ vdd_l3_l5_l7_l8-supply: true
+ vdd_l4_l6-supply: true
+ patternProperties:
+ "^vdd_s[1-5]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8004-regulators
+ then:
+ patternProperties:
+ "^vdd_s[25]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8005-regulators
+ then:
+ patternProperties:
+ "^vdd_s[1-4]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8226-regulators
+ then:
+ properties:
+ vdd_l10_l11_l13-supply: true
+ vdd_l12_l14-supply: true
+ vdd_l15_l16_l17_l18-supply: true
+ vdd_l19_l20_l21_l22_l23_l28-supply: true
+ vdd_l1_l2_l4_l5-supply: true
+ vdd_l25-supply: true
+ vdd_l3_l24_l26-supply: true
+ vdd_l6_l7_l8_l9_l27-supply: true
+ vdd_lvs1-supply: true
+ patternProperties:
+ "^vdd_s[1-5]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8841-regulators
+ then:
+ patternProperties:
+ "^vdd_s[1-8]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8916-regulators
+ then:
+ properties:
+ vdd_l1_l3-supply: true
+ vdd_l4_l5_l6-supply: true
+ vdd_l8_l11_l14_l15_l16-supply: true
+ vdd_l9_l10_l12_l13_l17_l18-supply: true
+ patternProperties:
+ "^vdd_l[27]-supply$": true
+ "^vdd_s[1-4]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8941-regulators
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: Over-current protection interrupt for 5V S1
+ - description: Over-current protection interrupt for 5V S2
+ interrupt-names:
+ items:
+ - const: ocp-5vs1
+ - const: ocp-5vs2
+ vdd_l13_l20_l23_l24-supply: true
+ vdd_l1_l3-supply: true
+ vdd_l21-supply: true
+ vdd_l2_lvs_1_2_3-supply: true
+ vdd_l4_l11-supply: true
+ vdd_l5_l7-supply: true
+ vdd_l6_l12_l14_l15-supply: true
+ vdd_l8_l16_l18_19-supply: true
+ vdd_l9_l10_l17_l22-supply: true
+ vin_5vs-supply: true
+ patternProperties:
+ "^vdd_s[1-3]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8950-regulators
+ then:
+ properties:
+ vdd_l1_l19-supply: true
+ vdd_l20-supply: true
+ vdd_l21-supply: true
+ vdd_l2_l23-supply: true
+ vdd_l3-supply: true
+ vdd_l4_l5_l6_l7_l16-supply: true
+ vdd_l8_l11_l12_l17_l22-supply: true
+ vdd_l9_l10_l13_l14_l15_l18-supply: true
+ patternProperties:
+ "^vdd_s[1-6]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pm8994-regulators
+ then:
+ properties:
+ vdd_l1-supply: true
+ vdd_l13_l19_l23_l24-supply: true
+ vdd_l14_l15-supply: true
+ vdd_l17_l29-supply: true
+ vdd_l20_l21-supply: true
+ vdd_l25-supply: true
+ vdd_l2_l26_l28-supply: true
+ vdd_l3_l11-supply: true
+ vdd_l4_l27_l31-supply: true
+ vdd_l5_l7-supply: true
+ vdd_l6_l12_l32-supply: true
+ vdd_l8_l16_l30-supply: true
+ vdd_l9_l10_l18_l22-supply: true
+ vdd_lvs_1_2-supply: true
+ patternProperties:
+ "^vdd_s[1-9][0-2]?-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pmi8994-regulators
+ then:
+ properties:
+ vdd_l1-supply: true
+ patternProperties:
+ "^vdd_s[1-3]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pmp8074-regulators
+ then:
+ properties:
+ vdd_l10_l11_l12_l13-supply: true
+ vdd_l1_l2-supply: true
+ vdd_l3_l8-supply: true
+ vdd_l5_l6_l15-supply: true
+ patternProperties:
+ "^vdd_l[479]-supply$": true
+ "^vdd_s[1-5]-supply$": true
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,pms405-regulators
+ then:
+ properties:
+ vdd_s3-supply: true
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ regulators {
+ compatible = "qcom,pm8941-regulators";
+ vdd_l1_l3-supply = <&s1>;
+
+ s1: s1 {
+ regulator-min-microvolt = <1300000>;
+ regulator-max-microvolt = <1400000>;
+ };
+
+ l1: l1 {
+ regulator-min-microvolt = <1225000>;
+ regulator-max-microvolt = <1300000>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.yaml
index 1ddc1efd19e2..f97b8083678f 100644
--- a/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/qcom-labibb-regulator.yaml
@@ -20,6 +20,7 @@ properties:
lab:
type: object
+ additionalProperties: false
properties:
qcom,soft-start-us:
@@ -33,11 +34,19 @@ properties:
description:
Short-circuit and over-current interrupts for lab.
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: sc-err
+ - const: ocp
+
required:
- interrupts
+ - interrupt-names
ibb:
type: object
+ additionalProperties: false
properties:
qcom,discharge-resistor-kohms:
@@ -52,8 +61,15 @@ properties:
description:
Short-circuit and over-current interrupts for ibb.
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: sc-err
+ - const: ocp
+
required:
- interrupts
+ - interrupt-names
required:
- compatible
diff --git a/Documentation/devicetree/bindings/regulator/regulator.yaml b/Documentation/devicetree/bindings/regulator/regulator.yaml
index a9b66ececccf..6e8aa9eed3aa 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/regulator.yaml
@@ -23,6 +23,7 @@ properties:
regulator-microvolt-offset:
description: Offset applied to voltages to compensate for voltage drops
+ $ref: "/schemas/types.yaml#/definitions/uint32"
regulator-min-microamp:
description: smallest current consumers may set
diff --git a/Documentation/devicetree/bindings/regulator/richtek,rt4801-regulator.yaml b/Documentation/devicetree/bindings/regulator/richtek,rt4801-regulator.yaml
index 091150c4e579..4a8a221bc902 100644
--- a/Documentation/devicetree/bindings/regulator/richtek,rt4801-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/richtek,rt4801-regulator.yaml
@@ -42,6 +42,7 @@ patternProperties:
"^DSV(P|N)$":
type: object
$ref: regulator.yaml#
+ unevaluatedProperties: false
description:
Properties for single display bias regulator.
diff --git a/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
index 7d0adb74a396..d61e8675f067 100644
--- a/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/rohm,bd71815-regulator.yaml
@@ -27,6 +27,7 @@ properties:
description:
properties for wled regulator
$ref: regulator.yaml#
+ unevaluatedProperties: false
properties:
regulator-name:
diff --git a/Documentation/devicetree/bindings/regulator/silergy,sy8106a.yaml b/Documentation/devicetree/bindings/regulator/silergy,sy8106a.yaml
index a52a67c869b5..c3a902e11b5d 100644
--- a/Documentation/devicetree/bindings/regulator/silergy,sy8106a.yaml
+++ b/Documentation/devicetree/bindings/regulator/silergy,sy8106a.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/regulator/silergy,sy8106a.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Silergy SY8106A Voltage Regulator Device Tree Bindings
+title: Silergy SY8106A Voltage Regulator
maintainers:
- Ondrej Jirman <megous@megous.com>
diff --git a/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
new file mode 100644
index 000000000000..78be79930fda
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/ti,tps65219.yaml
@@ -0,0 +1,173 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/ti,tps65219.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI tps65219 Power Management Integrated Circuit regulators
+
+maintainers:
+ - Jerome Neanne <jerome.neanne@baylibre.com>
+
+description: |
+ Regulator nodes should be named to buck<number> and ldo<number>.
+
+properties:
+ compatible:
+ enum:
+ - ti,tps65219
+
+ reg:
+ maxItems: 1
+
+ system-power-controller:
+ type: boolean
+ description: Optional property that indicates that this device is
+ controlling system power.
+
+ interrupts:
+ description: Short-circuit, over-current, under-voltage for regulators, PB interrupts.
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ description: Specifies the PIN numbers and Flags, as defined in
+ include/dt-bindings/interrupt-controller/irq.h
+ const: 1
+
+ ti,power-button:
+ type: boolean
+ description: |
+ Optional property that sets the EN/PB/VSENSE pin to be a
+ power-button.
+ TPS65219 has a multipurpose pin called EN/PB/VSENSE that can be either
+ 1. EN in which case it functions as an enable pin.
+ 2. VSENSE which compares the voltages and triggers an automatic
+ on/off request.
+ 3. PB in which case it can be configured to trigger an interrupt
+ to the SoC.
+ ti,power-button reflects the last one of those options
+ where the board has a button wired to the pin and triggers
+ an interrupt on pressing it.
+
+patternProperties:
+ "^buck[1-3]-supply$":
+ description: Input supply phandle of one regulator.
+
+ "^ldo[1-4]-supply$":
+ description: Input supply phandle of one regulator.
+
+ regulators:
+ type: object
+ description: |
+ list of regulators provided by this controller
+
+ patternProperties:
+ "^ldo[1-4]$":
+ type: object
+ $ref: regulator.yaml#
+ description:
+ Properties for single LDO regulator.
+
+ unevaluatedProperties: false
+
+ "^buck[1-3]$":
+ type: object
+ $ref: regulator.yaml#
+ description:
+ Properties for single BUCK regulator.
+
+ unevaluatedProperties: false
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ tps65219: pmic@30 {
+ compatible = "ti,tps65219";
+ reg = <0x30>;
+ buck1-supply = <&vcc_3v3_sys>;
+ buck2-supply = <&vcc_3v3_sys>;
+ buck3-supply = <&vcc_3v3_sys>;
+ ldo1-supply = <&vcc_3v3_sys>;
+ ldo2-supply = <&buck2_reg>;
+ ldo3-supply = <&vcc_3v3_sys>;
+ ldo4-supply = <&vcc_3v3_sys>;
+
+ pinctrl-0 = <&pmic_irq_pins_default>;
+
+ interrupt-parent = <&gic500>;
+ interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
+ ti,power-button;
+
+ regulators {
+ buck1_reg: buck1 {
+ regulator-name = "VDD_CORE";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <750000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck2_reg: buck2 {
+ regulator-name = "VCC1V8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ buck3_reg: buck3 {
+ regulator-name = "VDD_LPDDR4";
+ regulator-min-microvolt = <1100000>;
+ regulator-max-microvolt = <1100000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo1_reg: ldo1 {
+ regulator-name = "VDDSHV_SD_IO_PMIC";
+ regulator-min-microvolt = <33000000>;
+ regulator-max-microvolt = <33000000>;
+ };
+
+ ldo2_reg: ldo2 {
+ regulator-name = "VDDAR_CORE";
+ regulator-min-microvolt = <850000>;
+ regulator-max-microvolt = <850000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo3_reg: ldo3 {
+ regulator-name = "VDDA_1V8";
+ regulator-min-microvolt = <18000000>;
+ regulator-max-microvolt = <18000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ ldo4_reg: ldo4 {
+ regulator-name = "VDD_PHY_2V5";
+ regulator-min-microvolt = <25000000>;
+ regulator-max-microvolt = <25000000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index eec3b9c4c713..7e091eaffc18 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -18,6 +18,7 @@ properties:
enum:
- mediatek,mt8183-scp
- mediatek,mt8186-scp
+ - mediatek,mt8188-scp
- mediatek,mt8192-scp
- mediatek,mt8195-scp
@@ -80,6 +81,7 @@ allOf:
enum:
- mediatek,mt8183-scp
- mediatek,mt8186-scp
+ - mediatek,mt8188-scp
then:
properties:
reg:
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index 947f94548d0e..db9e0f0c2bea 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -67,13 +67,28 @@ properties:
minItems: 1
maxItems: 8
+ interconnects:
+ maxItems: 1
+
interrupts:
minItems: 5
- maxItems: 6
+ items:
+ - description: Watchdog interrupt
+ - description: Fatal interrupt
+ - description: Ready interrupt
+ - description: Handover interrupt
+ - description: Stop acknowledge interrupt
+ - description: Shutdown acknowledge interrupt
interrupt-names:
minItems: 5
- maxItems: 6
+ items:
+ - const: wdog
+ - const: fatal
+ - const: ready
+ - const: handover
+ - const: stop-ack
+ - const: shutdown-ack
resets:
minItems: 1
@@ -116,7 +131,6 @@ properties:
- description: Stop the modem
qcom,smem-state-names:
- $ref: /schemas/types.yaml#/definitions/string-array
description: The names of the state bits used for SMP2P output
items:
- const: stop
@@ -134,13 +148,14 @@ properties:
three offsets within syscon for q6, modem and nc halt registers.
smd-edge:
- type: object
+ $ref: /schemas/remoteproc/qcom,smd-edge.yaml#
description:
Qualcomm Shared Memory subnode which represents communication edge,
channels and devices related to the ADSP.
+ unevaluatedProperties: false
glink-edge:
- type: object
+ $ref: /schemas/remoteproc/qcom,glink-edge.yaml#
description:
Qualcomm G-Link subnode which represents communication edge, channels
and devices related to the ADSP.
@@ -315,19 +330,9 @@ allOf:
then:
properties:
interrupts:
- items:
- - description: Watchdog interrupt
- - description: Fatal interrupt
- - description: Ready interrupt
- - description: Handover interrupt
- - description: Stop acknowledge interrupt
+ maxItems: 5
interrupt-names:
- items:
- - const: wdog
- - const: fatal
- - const: ready
- - const: handover
- - const: stop-ack
+ maxItems: 5
- if:
properties:
@@ -345,21 +350,9 @@ allOf:
then:
properties:
interrupts:
- items:
- - description: Watchdog interrupt
- - description: Fatal interrupt
- - description: Ready interrupt
- - description: Handover interrupt
- - description: Stop acknowledge interrupt
- - description: Shutdown acknowledge interrupt
+ minItems: 6
interrupt-names:
- items:
- - const: wdog
- - const: fatal
- - const: ready
- - const: handover
- - const: stop-ack
- - const: shutdown-ack
+ minItems: 6
- if:
properties:
@@ -379,6 +372,8 @@ allOf:
- qcom,msm8226-adsp-pil
- qcom,msm8996-adsp-pil
- qcom,msm8998-adsp-pas
+ - qcom,sm8150-adsp-pas
+ - qcom,sm8150-cdsp-pas
then:
properties:
power-domains:
@@ -447,19 +442,6 @@ allOf:
compatible:
contains:
enum:
- - qcom,sm8150-adsp-pas
- - qcom,sm8150-cdsp-pas
- then:
- properties:
- power-domains:
- items:
- - description: CX power domain
-
- - if:
- properties:
- compatible:
- contains:
- enum:
- qcom,sc7280-mpss-pas
- qcom,sdx55-mpss-pas
- qcom,sm6350-mpss-pas
@@ -594,11 +576,12 @@ allOf:
examples:
- |
#include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
adsp {
compatible = "qcom,msm8974-adsp-pil";
- interrupts-extended = <&intc 0 162 IRQ_TYPE_EDGE_RISING>,
+ interrupts-extended = <&intc GIC_SPI 162 IRQ_TYPE_EDGE_RISING>,
<&adsp_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
<&adsp_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
<&adsp_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
@@ -620,7 +603,7 @@ examples:
qcom,smem-state-names = "stop";
smd-edge {
- interrupts = <0 156 IRQ_TYPE_EDGE_RISING>;
+ interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>;
qcom,ipc = <&apcs 8 8>;
qcom,smd-edge = <1>;
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml
new file mode 100644
index 000000000000..25c27464ef25
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,glink-edge.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,glink-edge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm G-Link Edge communication channel nodes
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ Qualcomm G-Link subnode represents communication edge, channels and devices
+ related to the remote processor.
+
+properties:
+ $nodename:
+ const: "glink-edge"
+
+ apr:
+ $ref: /schemas/soc/qcom/qcom,apr.yaml#
+ required:
+ - qcom,glink-channels
+ description:
+ Qualcomm APR/GPR (Asynchronous/Generic Packet Router)
+
+ fastrpc:
+ $ref: /schemas/misc/qcom,fastrpc.yaml#
+ required:
+ - qcom,glink-channels
+ description:
+ Qualcomm FastRPC
+
+ interrupts:
+ maxItems: 1
+
+ label:
+ description: The names of the state bits used for SMP2P output
+
+ mboxes:
+ maxItems: 1
+
+ qcom,remote-pid:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ ID of the shared memory used by GLINK for communication with remote
+ processor.
+
+required:
+ - interrupts
+ - label
+ - mboxes
+ - qcom,remote-pid
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+ remoteproc@8a00000 {
+ reg = <0x08a00000 0x10000>;
+ // ...
+
+ glink-edge {
+ interrupts-extended = <&ipcc IPCC_CLIENT_WPSS
+ IPCC_MPROC_SIGNAL_GLINK_QMP
+ IRQ_TYPE_EDGE_RISING>;
+ mboxes = <&ipcc IPCC_CLIENT_WPSS
+ IPCC_MPROC_SIGNAL_GLINK_QMP>;
+
+ label = "wpss";
+ qcom,remote-pid = <13>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
index 9282837d64ba..a7711e3c998c 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
@@ -30,7 +30,7 @@ additionalProperties: false
examples:
- |
imem@146bf000 {
- compatible = "syscon", "simple-mfd";
+ compatible = "qcom,sdm630-imem", "syscon", "simple-mfd";
reg = <0x146bf000 0x1000>;
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
index b677900b3aae..d0ebd16ee0e1 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
@@ -14,8 +14,6 @@ on the Qualcomm Hexagon core.
"qcom,msm8974-mss-pil"
"qcom,msm8996-mss-pil"
"qcom,msm8998-mss-pil"
- "qcom,sc7180-mss-pil"
- "qcom,sc7280-mss-pil"
"qcom,sdm845-mss-pil"
- reg:
@@ -37,7 +35,7 @@ on the Qualcomm Hexagon core.
- interrupt-names:
Usage: required
Value type: <stringlist>
- Definition: The interrupts needed depends on the the compatible
+ Definition: The interrupts needed depends on the compatible
string:
qcom,q6v5-pil:
qcom,ipq8074-wcss-pil:
@@ -47,8 +45,6 @@ on the Qualcomm Hexagon core.
must be "wdog", "fatal", "ready", "handover", "stop-ack"
qcom,msm8996-mss-pil:
qcom,msm8998-mss-pil:
- qcom,sc7180-mss-pil:
- qcom,sc7280-mss-pil:
qcom,sdm845-mss-pil:
must be "wdog", "fatal", "ready", "handover", "stop-ack",
"shutdown-ack"
@@ -86,11 +82,6 @@ on the Qualcomm Hexagon core.
qcom,msm8998-mss-pil:
must be "iface", "bus", "mem", "xo", "gpll0_mss",
"snoc_axi", "mnoc_axi", "qdss"
- qcom,sc7180-mss-pil:
- must be "iface", "bus", "xo", "snoc_axi", "mnoc_axi",
- "nav"
- qcom,sc7280-mss-pil:
- must be "iface", "xo", "snoc_axi", "offline", "pka"
qcom,sdm845-mss-pil:
must be "iface", "bus", "mem", "xo", "gpll0_mss",
"snoc_axi", "mnoc_axi", "prng"
@@ -102,7 +93,7 @@ on the Qualcomm Hexagon core.
reference to the list of 3 reset-controllers for the
wcss sub-system
reference to the list of 2 reset-controllers for the modem
- sub-system on SC7180, SC7280, SDM845 SoCs
+ sub-system on SDM845 SoCs
- reset-names:
Usage: required
@@ -111,7 +102,7 @@ on the Qualcomm Hexagon core.
must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset"
for the wcss sub-system
must be "mss_restart", "pdc_reset" for the modem
- sub-system on SC7180, SC7280, SDM845 SoCs
+ sub-system on SDM845 SoCs
For devices where the mba and mpss sub-nodes are not specified, mba/mpss region
should be referenced as follows:
@@ -176,10 +167,6 @@ For the compatible string below the following supplies are required:
qcom,msm8996-mss-pil:
qcom,msm8998-mss-pil:
must be "cx", "mx"
- qcom,sc7180-mss-pil:
- must be "cx", "mx", "mss"
- qcom,sc7280-mss-pil:
- must be "cx", "mss"
qcom,sdm845-mss-pil:
must be "cx", "mx", "mss"
@@ -205,36 +192,6 @@ For the compatible string below the following supplies are required:
Definition: a phandle reference to a syscon representing TCSR followed
by the three offsets within syscon for q6, modem and nc
halt registers.
- a phandle reference to a syscon representing TCSR followed
- by the four offsets within syscon for q6, modem, nc and vq6
- halt registers on SC7280 SoCs.
-
-For the compatible strings below the following phandle references are required:
- "qcom,sc7180-mss-pil"
-- qcom,spare-regs:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: a phandle reference to a syscon representing TCSR followed
- by the offset within syscon for conn_box_spare0 register
- used by the modem sub-system running on SC7180 SoC.
-
-For the compatible strings below the following phandle references are required:
- "qcom,sc7280-mss-pil"
-- qcom,ext-regs:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: two phandle references to syscons representing TCSR_REG and
- TCSR register space followed by the two offsets within the syscon
- to force_clk_en/rscc_disable and axim1_clk_off/crypto_clk_off
- registers respectively.
-
-- qcom,qaccept-regs:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: a phandle reference to a syscon representing TCSR followed
- by the three offsets within syscon for mdm, cx and axi
- qaccept registers used by the modem sub-system running on
- SC7280 SoC.
The Hexagon node must contain iommus property as described in ../iommu/iommu.txt
on platforms which do not have TrustZone.
@@ -257,29 +214,23 @@ related to the Hexagon. See ../soc/qcom/qcom,smd.yaml and
The following example describes the resources needed to boot control the
Hexagon, as it is found on MSM8974 boards.
- modem-rproc@fc880000 {
- compatible = "qcom,q6v5-pil";
- reg = <0xfc880000 0x100>,
- <0xfc820000 0x020>;
+ remoteproc@fc880000 {
+ compatible = "qcom,msm8974-mss-pil";
+ reg = <0xfc880000 0x100>, <0xfc820000 0x020>;
reg-names = "qdsp6", "rmb";
- interrupts-extended = <&intc 0 24 1>,
- <&modem_smp2p_in 0 0>,
- <&modem_smp2p_in 1 0>,
- <&modem_smp2p_in 2 0>,
- <&modem_smp2p_in 3 0>;
- interrupt-names = "wdog",
- "fatal",
- "ready",
- "handover",
- "stop-ack";
+ interrupts-extended = <&intc GIC_SPI 24 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>;
+ interrupt-names = "wdog", "fatal", "ready", "handover", "stop-ack";
clocks = <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
<&gcc GCC_MSS_CFG_AHB_CLK>,
- <&gcc GCC_BOOT_ROM_AHB_CLK>;
- clock-names = "iface", "bus", "mem";
-
- qcom,halt-regs = <&tcsr_mutex_block 0x1180 0x1200 0x1280>;
+ <&gcc GCC_BOOT_ROM_AHB_CLK>,
+ <&xo_board>;
+ clock-names = "iface", "bus", "mem", "xo";
resets = <&gcc GCC_MSS_RESTART>;
reset-names = "mss_restart";
@@ -289,6 +240,8 @@ Hexagon, as it is found on MSM8974 boards.
mx-supply = <&pm8841_s1>;
pll-supply = <&pm8941_l12>;
+ qcom,halt-regs = <&tcsr_mutex_block 0x1180 0x1200 0x1280>;
+
qcom,smem-states = <&modem_smp2p_out 0>;
qcom,smem-state-names = "stop";
@@ -299,4 +252,13 @@ Hexagon, as it is found on MSM8974 boards.
mpss {
memory-region = <&mpss_region>;
};
+
+ smd-edge {
+ interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,ipc = <&apcs 8 12>;
+ qcom,smd-edge = <0>;
+
+ label = "modem";
+ };
};
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,qcs404-cdsp-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,qcs404-cdsp-pil.yaml
index 31413cfe10db..06f5f93f62a9 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,qcs404-cdsp-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,qcs404-cdsp-pil.yaml
@@ -90,7 +90,6 @@ properties:
- description: Stop the modem
qcom,smem-state-names:
- $ref: /schemas/types.yaml#/definitions/string
description: The names of the state bits used for SMP2P output
items:
- const: stop
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml
new file mode 100644
index 000000000000..e4a7da8020f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml
@@ -0,0 +1,246 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,sc7180-mss-pil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC7180 MSS Peripheral Image Loader
+
+maintainers:
+ - Sibi Sankar <quic_sibis@quicinc.com>
+
+description:
+ This document describes the hardware for a component that loads and boots firmware
+ on the Qualcomm Technology Inc. SC7180 Modem Hexagon Core.
+
+properties:
+ compatible:
+ enum:
+ - qcom,sc7180-mss-pil
+
+ reg:
+ items:
+ - description: MSS QDSP6 registers
+ - description: RMB registers
+
+ reg-names:
+ items:
+ - const: qdsp6
+ - const: rmb
+
+ iommus:
+ items:
+ - description: MSA Stream 1
+ - description: MSA Stream 2
+
+ interrupts:
+ items:
+ - description: Watchdog interrupt
+ - description: Fatal interrupt
+ - description: Ready interrupt
+ - description: Handover interrupt
+ - description: Stop acknowledge interrupt
+ - description: Shutdown acknowledge interrupt
+
+ interrupt-names:
+ items:
+ - const: wdog
+ - const: fatal
+ - const: ready
+ - const: handover
+ - const: stop-ack
+ - const: shutdown-ack
+
+ clocks:
+ items:
+ - description: GCC MSS IFACE clock
+ - description: GCC MSS BUS clock
+ - description: GCC MSS NAV clock
+ - description: GCC MSS SNOC_AXI clock
+ - description: GCC MSS MFAB_AXIS clock
+ - description: RPMH XO clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: bus
+ - const: nav
+ - const: snoc_axi
+ - const: mnoc_axi
+ - const: xo
+
+ power-domains:
+ items:
+ - description: CX power domain
+ - description: MX power domain
+ - description: MSS power domain
+
+ power-domain-names:
+ items:
+ - const: cx
+ - const: mx
+ - const: mss
+
+ resets:
+ items:
+ - description: AOSS restart
+ - description: PDC reset
+
+ reset-names:
+ items:
+ - const: mss_restart
+ - const: pdc_reset
+
+ memory-region:
+ items:
+ - description: MBA reserved region
+ - description: modem reserved region
+
+ firmware-name:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ items:
+ - description: Name of MBA firmware
+ - description: Name of modem firmware
+
+ qcom,halt-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Halt registers are used to halt transactions of various sub-components
+ within MSS.
+ items:
+ - items:
+ - description: phandle to TCSR_MUTEX registers
+ - description: offset to the Q6 halt register
+ - description: offset to the modem halt register
+ - description: offset to the nc halt register
+
+ qcom,spare-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Spare registers are multipurpose registers used for errata
+ handling.
+ items:
+ - items:
+ - description: phandle to TCSR_MUTEX registers
+ - description: offset to the conn_box_spare0 register
+
+ qcom,qmp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Reference to the AOSS side-channel message RAM.
+
+ qcom,smem-states:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: States used by the AP to signal the Hexagon core
+ items:
+ - description: Stop the modem
+
+ qcom,smem-state-names:
+ description: The names of the state bits used for SMP2P output
+ const: stop
+
+ glink-edge:
+ $ref: qcom,glink-edge.yaml#
+ unevaluatedProperties: false
+ description:
+ Qualcomm G-Link subnode which represents communication edge, channels
+ and devices related to the DSP.
+
+ properties:
+ interrupts:
+ items:
+ - description: IRQ from MSS to GLINK
+
+ mboxes:
+ items:
+ - description: Mailbox for communication between APPS and MSS
+
+ label:
+ const: modem
+
+ apr: false
+ fastrpc: false
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - iommus
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - power-domains
+ - power-domain-names
+ - resets
+ - reset-names
+ - qcom,halt-regs
+ - qcom,spare-regs
+ - memory-region
+ - qcom,qmp
+ - qcom,smem-states
+ - qcom,smem-state-names
+ - glink-edge
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sc7180.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/reset/qcom,sdm845-aoss.h>
+ #include <dt-bindings/reset/qcom,sdm845-pdc.h>
+
+ remoteproc_mpss: remoteproc@4080000 {
+ compatible = "qcom,sc7180-mss-pil";
+ reg = <0x04080000 0x10000>, <0x04180000 0x48>;
+ reg-names = "qdsp6", "rmb";
+
+ iommus = <&apps_smmu 0x461 0x0>, <&apps_smmu 0x444 0x3>;
+
+ interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;
+
+ interrupt-names = "wdog", "fatal", "ready", "handover",
+ "stop-ack", "shutdown-ack";
+
+ clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
+ <&gcc GCC_MSS_Q6_MEMNOC_AXI_CLK>,
+ <&gcc GCC_MSS_NAV_AXI_CLK>,
+ <&gcc GCC_MSS_SNOC_AXI_CLK>,
+ <&gcc GCC_MSS_MFAB_AXIS_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "bus", "nav", "snoc_axi",
+ "mnoc_axi", "xo";
+
+ power-domains = <&rpmhpd SC7180_CX>,
+ <&rpmhpd SC7180_MX>,
+ <&rpmhpd SC7180_MSS>;
+ power-domain-names = "cx", "mx", "mss";
+
+ memory-region = <&mba_mem>, <&mpss_mem>;
+
+ qcom,qmp = <&aoss_qmp>;
+
+ qcom,smem-states = <&modem_smp2p_out 0>;
+ qcom,smem-state-names = "stop";
+
+ resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
+ <&pdc_reset PDC_MODEM_SYNC_RESET>;
+ reset-names = "mss_restart", "pdc_reset";
+
+ qcom,halt-regs = <&tcsr_mutex_regs 0x23000 0x25000 0x24000>;
+ qcom,spare-regs = <&tcsr_regs 0xb3e4>;
+
+ glink-edge {
+ interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
+ mboxes = <&apss_shared 12>;
+ qcom,remote-pid = <1>;
+ label = "modem";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml
new file mode 100644
index 000000000000..b4de0521a89d
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-mss-pil.yaml
@@ -0,0 +1,267 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,sc7280-mss-pil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC7280 MSS Peripheral Image Loader
+
+maintainers:
+ - Sibi Sankar <quic_sibis@quicinc.com>
+
+description:
+ This document describes the hardware for a component that loads and boots firmware
+ on the Qualcomm Technology Inc. SC7280 Modem Hexagon Core.
+
+properties:
+ compatible:
+ enum:
+ - qcom,sc7280-mss-pil
+
+ reg:
+ items:
+ - description: MSS QDSP6 registers
+ - description: RMB registers
+
+ reg-names:
+ items:
+ - const: qdsp6
+ - const: rmb
+
+ iommus:
+ items:
+ - description: MSA Stream 1
+ - description: MSA Stream 2
+
+ interconnects:
+ items:
+ - description: Path leading to system memory
+
+ interrupts:
+ items:
+ - description: Watchdog interrupt
+ - description: Fatal interrupt
+ - description: Ready interrupt
+ - description: Handover interrupt
+ - description: Stop acknowledge interrupt
+ - description: Shutdown acknowledge interrupt
+
+ interrupt-names:
+ items:
+ - const: wdog
+ - const: fatal
+ - const: ready
+ - const: handover
+ - const: stop-ack
+ - const: shutdown-ack
+
+ clocks:
+ items:
+ - description: GCC MSS IFACE clock
+ - description: GCC MSS OFFLINE clock
+ - description: GCC MSS SNOC_AXI clock
+ - description: RPMH PKA clock
+ - description: RPMH XO clock
+
+ clock-names:
+ items:
+ - const: iface
+ - const: offline
+ - const: snoc_axi
+ - const: pka
+ - const: xo
+
+ power-domains:
+ items:
+ - description: CX power domain
+ - description: MSS power domain
+
+ power-domain-names:
+ items:
+ - const: cx
+ - const: mss
+
+ resets:
+ items:
+ - description: AOSS restart
+ - description: PDC reset
+
+ reset-names:
+ items:
+ - const: mss_restart
+ - const: pdc_reset
+
+ memory-region:
+ items:
+ - description: MBA reserved region
+ - description: modem reserved region
+
+ firmware-name:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ items:
+ - description: Name of MBA firmware
+ - description: Name of modem firmware
+
+ qcom,halt-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Halt registers are used to halt transactions of various sub-components
+ within MSS.
+ items:
+ - items:
+ - description: phandle to TCSR_MUTEX registers
+ - description: offset to the Q6 halt register
+ - description: offset to the modem halt register
+ - description: offset to the nc halt register
+ - description: offset to the vq6 halt register
+
+ qcom,ext-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: EXT registers are used for various power related functionality
+ items:
+ - items:
+ - description: phandle to TCSR_REG registers
+ - description: offset to the force_clk_en register
+ - description: offset to the rscc_disable register
+ - items:
+ - description: phandle to TCSR_MUTEX registers
+ - description: offset to the axim1_clk_off register
+ - description: offset to the crypto_clk_off register
+
+ qcom,qaccept-regs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: QACCEPT registers are used to bring up/down Q-channels
+ items:
+ - items:
+ - description: phandle to TCSR_MUTEX registers
+ - description: offset to the mdm qaccept register
+ - description: offset to the cx qaccept register
+ - description: offset to the axi qaccept register
+
+ qcom,qmp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Reference to the AOSS side-channel message RAM.
+
+ qcom,smem-states:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description: States used by the AP to signal the Hexagon core
+ items:
+ - description: Stop the modem
+
+ qcom,smem-state-names:
+ description: The names of the state bits used for SMP2P output
+ const: stop
+
+ glink-edge:
+ $ref: qcom,glink-edge.yaml#
+ unevaluatedProperties: false
+ description:
+ Qualcomm G-Link subnode which represents communication edge, channels
+ and devices related to the DSP.
+
+ properties:
+ interrupts:
+ items:
+ - description: IRQ from MSS to GLINK
+
+ mboxes:
+ items:
+ - description: Mailbox for communication between APPS and MSS
+
+ label:
+ const: modem
+
+ apr: false
+ fastrpc: false
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - iommus
+ - interconnects
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - power-domains
+ - power-domain-names
+ - resets
+ - reset-names
+ - qcom,halt-regs
+ - qcom,ext-regs
+ - qcom,qaccept-regs
+ - memory-region
+ - qcom,qmp
+ - qcom,smem-states
+ - qcom,smem-state-names
+ - glink-edge
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-sc7280.h>
+ #include <dt-bindings/clock/qcom,rpmh.h>
+ #include <dt-bindings/interconnect/qcom,sc7280.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mailbox/qcom-ipcc.h>
+ #include <dt-bindings/power/qcom-rpmpd.h>
+ #include <dt-bindings/reset/qcom,sdm845-aoss.h>
+ #include <dt-bindings/reset/qcom,sdm845-pdc.h>
+
+ remoteproc_mpss: remoteproc@4080000 {
+ compatible = "qcom,sc7280-mss-pil";
+ reg = <0x04080000 0x10000>, <0x04180000 0x48>;
+ reg-names = "qdsp6", "rmb";
+
+ iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
+
+ interconnects = <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>;
+
+ interrupts-extended = <&intc GIC_SPI 264 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 0 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 1 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 2 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 3 IRQ_TYPE_EDGE_RISING>,
+ <&modem_smp2p_in 7 IRQ_TYPE_EDGE_RISING>;
+
+ interrupt-names = "wdog", "fatal", "ready", "handover",
+ "stop-ack", "shutdown-ack";
+
+ clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
+ <&gcc GCC_MSS_OFFLINE_AXI_CLK>,
+ <&gcc GCC_MSS_SNOC_AXI_CLK>,
+ <&rpmhcc RPMH_PKA_CLK>,
+ <&rpmhcc RPMH_CXO_CLK>;
+ clock-names = "iface", "offline", "snoc_axi", "pka", "xo";
+
+ power-domains = <&rpmhpd SC7280_CX>,
+ <&rpmhpd SC7280_MSS>;
+ power-domain-names = "cx", "mss";
+
+ memory-region = <&mba_mem>, <&mpss_mem>;
+
+ qcom,qmp = <&aoss_qmp>;
+
+ qcom,smem-states = <&modem_smp2p_out 0>;
+ qcom,smem-state-names = "stop";
+
+ resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
+ <&pdc_reset PDC_MODEM_SYNC_RESET>;
+ reset-names = "mss_restart", "pdc_reset";
+
+ qcom,halt-regs = <&tcsr_mutex 0x23000 0x25000 0x28000 0x33000>;
+ qcom,ext-regs = <&tcsr 0x10000 0x10004>, <&tcsr_mutex 0x26004 0x26008>;
+ qcom,qaccept-regs = <&tcsr_mutex 0x23030 0x23040 0x23020>;
+
+ glink-edge {
+ interrupts-extended = <&ipcc IPCC_CLIENT_MPSS
+ IPCC_MPROC_SIGNAL_GLINK_QMP
+ IRQ_TYPE_EDGE_RISING>;
+ mboxes = <&ipcc IPCC_CLIENT_MPSS
+ IPCC_MPROC_SIGNAL_GLINK_QMP>;
+ label = "modem";
+ qcom,remote-pid = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml
index d99a729d2710..b6bd33438584 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml
@@ -76,7 +76,7 @@ properties:
- const: pdc_sync
memory-region:
- $ref: /schemas/types.yaml#/definitions/phandle
+ maxItems: 1
description: Reference to the reserved-memory for the Hexagon core
firmware-name:
@@ -102,13 +102,13 @@ properties:
- description: Stop the modem
qcom,smem-state-names:
- $ref: /schemas/types.yaml#/definitions/string
description: The names of the state bits used for SMP2P output
const: stop
glink-edge:
- type: object
- description: |
+ $ref: qcom,glink-edge.yaml#
+ unevaluatedProperties: false
+ description:
Qualcomm G-Link subnode which represents communication edge, channels
and devices related to the ADSP.
@@ -122,21 +122,11 @@ properties:
- description: Mailbox for communication between APPS and WPSS
label:
- description: The names of the state bits used for SMP2P output
items:
- const: wpss
- qcom,remote-pid:
- $ref: /schemas/types.yaml#/definitions/uint32
- description: ID of the shared memory used by GLINK for communication with WPSS
-
- required:
- - interrupts
- - mboxes
- - label
- - qcom,remote-pid
-
- additionalProperties: false
+ apr: false
+ fastrpc: false
required:
- compatible
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sdm845-adsp-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sdm845-adsp-pil.yaml
index 1535bbbe25da..20df83a96ef3 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,sdm845-adsp-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sdm845-adsp-pil.yaml
@@ -90,7 +90,6 @@ properties:
- description: Stop the modem
qcom,smem-state-names:
- $ref: /schemas/types.yaml#/definitions/string
description: The names of the state bits used for SMP2P output
items:
- const: stop
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,smd-edge.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,smd-edge.yaml
new file mode 100644
index 000000000000..7ec8a6b6682c
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,smd-edge.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,smd-edge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SMD Edge communication channel nodes
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ Qualcomm SMD subnode represents a remote subsystem or a remote processor of
+ some sort - or in SMD language an "edge". The name of the edges are not
+ important.
+
+ In turn, subnodes of the "edges" represent devices tied to SMD channels on
+ that "edge". The names of the devices are not important. The properties of
+ these nodes are defined by the individual bindings for the SMD devices.
+ See also Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml
+
+properties:
+ $nodename:
+ const: "smd-edge"
+
+ apr:
+ $ref: /schemas/soc/qcom/qcom,apr.yaml#
+ required:
+ - qcom,smd-channels
+ description:
+ Qualcomm APR/GPR (Asynchronous/Generic Packet Router)
+
+ fastrpc:
+ $ref: /schemas/misc/qcom,fastrpc.yaml#
+ required:
+ - qcom,smd-channels
+ description:
+ Qualcomm FastRPC
+
+ interrupts:
+ maxItems: 1
+
+ label:
+ description:
+ Name of the edge, used for debugging and identification purposes. The
+ node name will be used if this is not present.
+
+ mboxes:
+ maxItems: 1
+ description:
+ Reference to the mailbox representing the outgoing doorbell in APCS for
+ this client.
+
+ qcom,ipc:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - items:
+ - description: phandle to a syscon node representing the APCS registers
+ - description: u32 representing offset to the register within the syscon
+ - description: u32 representing the ipc bit within the register
+ description:
+ Three entries specifying the outgoing ipc bit used for signaling the
+ remote processor.
+
+ qcom,smd-edge:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The identifier of the remote processor in the smd channel allocation
+ table.
+
+ qcom,remote-pid:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The identifier for the remote processor as known by the rest of the
+ system.
+
+ rpm-requests:
+ $ref: /schemas/soc/qcom/qcom,smd-rpm.yaml#
+ required:
+ - qcom,smd-channels
+ description:
+ Qualcomm Resource Power Manager (RPM) over SMD.
+
+ wcnss:
+ $ref: /schemas/soc/qcom/qcom,wcnss.yaml
+ required:
+ - qcom,smd-channels
+ description:
+ Qualcomm WCNSS for Bluetooth, WiFi and FM radio.
+
+required:
+ - interrupts
+ - qcom,smd-edge
+
+oneOf:
+ - required:
+ - mboxes
+ - required:
+ - qcom,ipc
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+ remoteproc {
+ // ...
+
+ smd-edge {
+ interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>;
+
+ qcom,ipc = <&apcs 8 8>;
+ qcom,smd-edge = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
index d7c3a78e37e6..cd55d80137f7 100644
--- a/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.yaml
@@ -36,17 +36,18 @@ properties:
enum:
- ti,am3356-pru # for AM335x SoC family (AM3356+ SoCs only)
- ti,am4376-pru # for AM437x SoC family (AM4376+ SoCs only)
+ - ti,am5728-pru # for AM57xx SoC family
+ - ti,am625-pru # for PRUs in K3 AM62x SoC family
- ti,am642-pru # for PRUs in K3 AM64x SoC family
- ti,am642-rtu # for RTUs in K3 AM64x SoC family
- ti,am642-tx-pru # for Tx_PRUs in K3 AM64x SoC family
- - ti,am5728-pru # for AM57xx SoC family
- - ti,k2g-pru # for 66AK2G SoC family
- ti,am654-pru # for PRUs in K3 AM65x SoC family
- ti,am654-rtu # for RTUs in K3 AM65x SoC family
- ti,am654-tx-pru # for Tx_PRUs in K3 AM65x SR2.0 SoCs
- ti,j721e-pru # for PRUs in K3 J721E SoC family
- ti,j721e-rtu # for RTUs in K3 J721E SoC family
- ti,j721e-tx-pru # for Tx_PRUs in K3 J721E SoC family
+ - ti,k2g-pru # for 66AK2G SoC family
reg:
items:
diff --git a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
index 257a0b51994a..a924fcfca085 100644
--- a/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
+++ b/Documentation/devicetree/bindings/reserved-memory/google,open-dice.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reserved-memory/google,open-dice.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Open Profile for DICE Device Tree Bindings
+title: Open Profile for DICE
description: |
This binding represents a reserved memory region containing data
diff --git a/Documentation/devicetree/bindings/reserved-memory/memory-region.yaml b/Documentation/devicetree/bindings/reserved-memory/memory-region.yaml
index 83dfe499a259..592f180e6b0d 100644
--- a/Documentation/devicetree/bindings/reserved-memory/memory-region.yaml
+++ b/Documentation/devicetree/bindings/reserved-memory/memory-region.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reserved-memory/memory-region.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Reserved Memory Region Device Tree Binding
+title: Reserved Memory Region
maintainers:
- devicetree-spec@vger.kernel.org
diff --git a/Documentation/devicetree/bindings/reserved-memory/nvidia,tegra210-emc-table.yaml b/Documentation/devicetree/bindings/reserved-memory/nvidia,tegra210-emc-table.yaml
index 035a50fe3ee4..b1b0421a4255 100644
--- a/Documentation/devicetree/bindings/reserved-memory/nvidia,tegra210-emc-table.yaml
+++ b/Documentation/devicetree/bindings/reserved-memory/nvidia,tegra210-emc-table.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reserved-memory/nvidia,tegra210-emc-table.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: NVIDIA Tegra210 EMC Frequency Table Device Tree Bindings
+title: NVIDIA Tegra210 EMC Frequency Table
maintainers:
- Thierry Reding <thierry.reding@gmail.com>
diff --git a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml
index 7a0744052ff6..44f72bcf1782 100644
--- a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml
+++ b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reserved-memory/reserved-memory.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: /reserved-memory Child Node Common Device Tree Bindings
+title: /reserved-memory Child Node Common
maintainers:
- devicetree-spec@vger.kernel.org
diff --git a/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml b/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml
index 001c0d2a8c1f..2a248e511c18 100644
--- a/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml
+++ b/Documentation/devicetree/bindings/reset/allwinner,sun6i-a31-clock-reset.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reset/allwinner,sun6i-a31-clock-reset.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 Peripheral Reset Controller Device Tree Bindings
+title: Allwinner A31 Peripheral Reset Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml b/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml
index 494a454928ce..98db2aa74dc8 100644
--- a/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml
+++ b/Documentation/devicetree/bindings/reset/amlogic,meson-reset.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson SoC Reset Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml b/Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml
new file mode 100644
index 000000000000..98465d26949e
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/atmel,at91sam9260-reset.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/atmel,at91sam9260-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel/Microchip System Reset Controller
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description: |
+ The system reset controller can be used to reset the CPU. In case of
+ SAMA7G5 it can also reset some devices (e.g. USB PHYs).
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - atmel,at91sam9260-rstc
+ - atmel,at91sam9g45-rstc
+ - atmel,sama5d3-rstc
+ - microchip,sam9x60-rstc
+ - microchip,sama7g5-rstc
+ - items:
+ - const: atmel,sama5d3-rstc
+ - const: atmel,at91sam9g45-rstc
+
+ reg:
+ minItems: 1
+ items:
+ - description: base registers for system reset control
+ - description: registers for device specific reset control
+
+ clocks:
+ maxItems: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - microchip,sama7g5-rstc
+ then:
+ required:
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/at91.h>
+
+ reset-controller@fffffd00 {
+ compatible = "atmel,at91sam9260-rstc";
+ reg = <0xfffffd00 0x10>;
+ clocks = <&pmc PMC_TYPE_CORE PMC_SLOW>;
+ };
diff --git a/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml b/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml
index 53e4ede9c0bd..ee8a2dcf5dfa 100644
--- a/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml
+++ b/Documentation/devicetree/bindings/reset/canaan,k210-rst.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reset/canaan,k210-rst.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Canaan Kendryte K210 Reset Controller Device Tree Bindings
+title: Canaan Kendryte K210 Reset Controller
maintainers:
- Damien Le Moal <damien.lemoal@wdc.com>
diff --git a/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml b/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml
index fa5e4ea6400e..d82e65e37cc0 100644
--- a/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml
+++ b/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml
@@ -11,7 +11,9 @@ maintainers:
properties:
compatible:
- const: nuvoton,npcm750-reset
+ enum:
+ - nuvoton,npcm750-reset # Poleg NPCM7XX SoC
+ - nuvoton,npcm845-reset # Arbel NPCM8XX SoC
reg:
maxItems: 1
@@ -19,6 +21,10 @@ properties:
'#reset-cells':
const: 2
+ nuvoton,sysgcr:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: a phandle to access GCR registers.
+
nuvoton,sw-reset-number:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 1
@@ -31,6 +37,7 @@ required:
- compatible
- reg
- '#reset-cells'
+ - nuvoton,sysgcr
additionalProperties: false
@@ -41,6 +48,7 @@ examples:
compatible = "nuvoton,npcm750-reset";
reg = <0xf0801000 0x70>;
#reset-cells = <2>;
+ nuvoton,sysgcr = <&gcr>;
nuvoton,sw-reset-number = <2>;
};
diff --git a/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml b/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml
index 86c2569ced97..731b8ce01525 100644
--- a/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml
+++ b/Documentation/devicetree/bindings/reset/renesas,rzg2l-usbphy-ctrl.yaml
@@ -17,6 +17,7 @@ properties:
compatible:
items:
- enum:
+ - renesas,r9a07g043-usbphy-ctrl # RZ/G2UL
- renesas,r9a07g044-usbphy-ctrl # RZ/G2{L,LC}
- renesas,r9a07g054-usbphy-ctrl # RZ/V2L
- const: renesas,rzg2l-usbphy-ctrl
diff --git a/Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml b/Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml
index 300359a5e14b..2f5bd616b7ae 100644
--- a/Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml
+++ b/Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/reset/starfive,jh7100-reset.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: StarFive JH7100 SoC Reset Controller Device Tree Bindings
+title: StarFive JH7100 SoC Reset Controller
maintainers:
- Emil Renner Berthing <kernel@esmil.dk>
diff --git a/Documentation/devicetree/bindings/reset/sunplus,reset.yaml b/Documentation/devicetree/bindings/reset/sunplus,reset.yaml
new file mode 100644
index 000000000000..f24646ba9761
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/sunplus,reset.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/reset/sunplus,reset.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Sunplus SoC Reset Controller
+
+maintainers:
+ - Qin Jian <qinjian@cqplus1.com>
+
+properties:
+ compatible:
+ const: sunplus,sp7021-reset
+
+ reg:
+ maxItems: 1
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ rstc: reset@9c000054 {
+ compatible = "sunplus,sp7021-reset";
+ reg = <0x9c000054 0x28>;
+ #reset-cells = <1>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml b/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml
new file mode 100644
index 000000000000..afc835eda0ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/ti,tps380x-reset.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/ti,tps380x-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI TPS380x reset controller node bindings
+
+maintainers:
+ - Marco Felsch <kernel@pengutronix.de>
+
+description: |
+ The TPS380x family [1] of supervisory circuits monitor supply voltages to
+ provide circuit initialization and timing supervision. The devices assert a
+ RESET signal if the voltage drops below a preset threshold or upon a manual
+ reset input (MR). The RESET output remains asserted for the factory
+ programmed delay after the voltage return above its threshold or after the
+ manual reset input is released.
+
+ [1] https://www.ti.com/product/TPS3801
+
+properties:
+ compatible:
+ enum:
+ - ti,tps3801
+
+ reset-gpios:
+ maxItems: 1
+ description: Reference to the GPIO connected to the MR pin.
+
+ "#reset-cells":
+ const: 0
+
+required:
+ - compatible
+ - reset-gpios
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ reset: reset-controller {
+ compatible = "ti,tps3801";
+ #reset-cells = <0>;
+ reset-gpios = <&gpio3 2 GPIO_ACTIVE_LOW>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/riscv/cpus.yaml b/Documentation/devicetree/bindings/riscv/cpus.yaml
index d632ac76532e..873dd12f6e89 100644
--- a/Documentation/devicetree/bindings/riscv/cpus.yaml
+++ b/Documentation/devicetree/bindings/riscv/cpus.yaml
@@ -63,6 +63,11 @@ properties:
- riscv,sv48
- riscv,none
+ riscv,cbom-block-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The blocksize in bytes for the Zicbom cache operations.
+
riscv,isa:
description:
Identifies the specific RISC-V instruction set architecture
diff --git a/Documentation/devicetree/bindings/riscv/microchip.yaml b/Documentation/devicetree/bindings/riscv/microchip.yaml
index 1aa7336a9672..37f97ee4fe46 100644
--- a/Documentation/devicetree/bindings/riscv/microchip.yaml
+++ b/Documentation/devicetree/bindings/riscv/microchip.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/riscv/microchip.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip PolarFire SoC-based boards device tree bindings
+title: Microchip PolarFire SoC-based boards
maintainers:
- Cyril Jean <Cyril.Jean@microchip.com>
diff --git a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
index e2d330bd4608..ca3b9be58058 100644
--- a/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
+++ b/Documentation/devicetree/bindings/riscv/sifive-l2-cache.yaml
@@ -17,9 +17,6 @@ description:
acts as directory-based coherency manager.
All the properties in ePAPR/DeviceTree specification applies for this platform.
-allOf:
- - $ref: /schemas/cache-controller.yaml#
-
select:
properties:
compatible:
@@ -33,11 +30,16 @@ select:
properties:
compatible:
- items:
- - enum:
- - sifive,fu540-c000-ccache
- - sifive,fu740-c000-ccache
- - const: cache
+ oneOf:
+ - items:
+ - enum:
+ - sifive,fu540-c000-ccache
+ - sifive,fu740-c000-ccache
+ - const: cache
+ - items:
+ - const: microchip,mpfs-ccache
+ - const: sifive,fu540-c000-ccache
+ - const: cache
cache-block-size:
const: 64
@@ -46,7 +48,7 @@ properties:
const: 2
cache-sets:
- const: 1024
+ enum: [1024, 2048]
cache-size:
const: 2097152
@@ -72,25 +74,46 @@ properties:
The reference to the reserved-memory for the L2 Loosely Integrated Memory region.
The reserved memory node should be defined as per the bindings in reserved-memory.txt.
-if:
- properties:
- compatible:
- contains:
- const: sifive,fu540-c000-ccache
-
-then:
- properties:
- interrupts:
- description: |
- Must contain entries for DirError, DataError and DataFail signals.
- maxItems: 3
+allOf:
+ - $ref: /schemas/cache-controller.yaml#
-else:
- properties:
- interrupts:
- description: |
- Must contain entries for DirError, DataError, DataFail, DirFail signals.
- minItems: 4
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - sifive,fu740-c000-ccache
+ - microchip,mpfs-ccache
+
+ then:
+ properties:
+ interrupts:
+ description: |
+ Must contain entries for DirError, DataError, DataFail, DirFail signals.
+ minItems: 4
+
+ else:
+ properties:
+ interrupts:
+ description: |
+ Must contain entries for DirError, DataError and DataFail signals.
+ maxItems: 3
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: sifive,fu740-c000-ccache
+
+ then:
+ properties:
+ cache-sets:
+ const: 2048
+
+ else:
+ properties:
+ cache-sets:
+ const: 1024
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/rng/amlogic,meson-rng.yaml b/Documentation/devicetree/bindings/rng/amlogic,meson-rng.yaml
index 444be32a8a29..09c6c906b1f9 100644
--- a/Documentation/devicetree/bindings/rng/amlogic,meson-rng.yaml
+++ b/Documentation/devicetree/bindings/rng/amlogic,meson-rng.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson Random number generator
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/rng/omap_rng.yaml b/Documentation/devicetree/bindings/rng/omap_rng.yaml
index 010188cdbec8..ccf54fae8302 100644
--- a/Documentation/devicetree/bindings/rng/omap_rng.yaml
+++ b/Documentation/devicetree/bindings/rng/omap_rng.yaml
@@ -53,17 +53,6 @@ allOf:
required:
- interrupts
- - if:
- properties:
- compatible:
- contains:
- enum:
- - inside-secure,safexcel-eip76
-
- then:
- required:
- - clocks
-
required:
- compatible
diff --git a/Documentation/devicetree/bindings/rtc/allwinner,sun4i-a10-rtc.yaml b/Documentation/devicetree/bindings/rtc/allwinner,sun4i-a10-rtc.yaml
index 478b0234e8fa..dede49431733 100644
--- a/Documentation/devicetree/bindings/rtc/allwinner,sun4i-a10-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/allwinner,sun4i-a10-rtc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/rtc/allwinner,sun4i-a10-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 RTC Device Tree Bindings
+title: Allwinner A10 RTC
allOf:
- $ref: "rtc.yaml#"
diff --git a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
index 6b38bd7eb3b4..04947e166cef 100644
--- a/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/allwinner,sun6i-a31-rtc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/rtc/allwinner,sun6i-a31-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 RTC Device Tree Bindings
+title: Allwinner A31 RTC
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml b/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml
index 994de43d17fa..0e5f0fcc26b0 100644
--- a/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/atmel,at91rm9200-rtc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/rtc/atmel,at91rm9200-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Atmel AT91 RTC Device Tree Bindings
+title: Atmel AT91 RTC
allOf:
- $ref: "rtc.yaml#"
diff --git a/Documentation/devicetree/bindings/rtc/atmel,at91sam9260-rtt.yaml b/Documentation/devicetree/bindings/rtc/atmel,at91sam9260-rtt.yaml
index 0ef1b7ff4a77..b5cd20e89daf 100644
--- a/Documentation/devicetree/bindings/rtc/atmel,at91sam9260-rtt.yaml
+++ b/Documentation/devicetree/bindings/rtc/atmel,at91sam9260-rtt.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/rtc/atmel,at91sam9260-rtt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Atmel AT91 RTT Device Tree Bindings
+title: Atmel AT91 RTT
allOf:
- $ref: "rtc.yaml#"
diff --git a/Documentation/devicetree/bindings/rtc/fsl,scu-rtc.yaml b/Documentation/devicetree/bindings/rtc/fsl,scu-rtc.yaml
new file mode 100644
index 000000000000..8c102b70d735
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/fsl,scu-rtc.yaml
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/fsl,scu-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - RTC bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+ - $ref: rtc.yaml#
+
+properties:
+ compatible:
+ const: fsl,imx8qxp-sc-rtc
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ rtc {
+ compatible = "fsl,imx8qxp-sc-rtc";
+ };
diff --git a/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml b/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml
index 500c62becd6b..7742465b9383 100644
--- a/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/microchip,mfps-rtc.yaml
@@ -5,7 +5,7 @@ $id: http://devicetree.org/schemas/rtc/microchip,mfps-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip PolarFire Soc (MPFS) RTC Device Tree Bindings
+title: Microchip PolarFire Soc (MPFS) RTC
allOf:
- $ref: rtc.yaml#
diff --git a/Documentation/devicetree/bindings/rtc/microcrystal,rv3032.yaml b/Documentation/devicetree/bindings/rtc/microcrystal,rv3032.yaml
index 9593840a4a2b..dd6eebf06ea6 100644
--- a/Documentation/devicetree/bindings/rtc/microcrystal,rv3032.yaml
+++ b/Documentation/devicetree/bindings/rtc/microcrystal,rv3032.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/rtc/microcrystal,rv3032.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip RV-3032 RTC Device Tree Bindings
+title: Microchip RV-3032 RTC
allOf:
- $ref: "rtc.yaml#"
@@ -32,6 +32,7 @@ properties:
- 11000
trickle-voltage-millivolt:
+ $ref: /schemas/types.yaml#/definitions/uint32
enum:
- 1750
- 3000
diff --git a/Documentation/devicetree/bindings/rtc/mstar,msc313-rtc.yaml b/Documentation/devicetree/bindings/rtc/mstar,msc313-rtc.yaml
index 114199cf4d28..585c185d1eb3 100644
--- a/Documentation/devicetree/bindings/rtc/mstar,msc313-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/mstar,msc313-rtc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/rtc/mstar,msc313-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mstar MSC313e RTC Device Tree Bindings
+title: Mstar MSC313e RTC
allOf:
- $ref: "rtc.yaml#"
diff --git a/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
new file mode 100644
index 000000000000..7a1857f5caa8
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/nuvoton,nct3018y.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NUVOTON NCT3018Y Real Time Clock
+
+allOf:
+ - $ref: "rtc.yaml#"
+
+maintainers:
+ - Medad CChien <ctcchien@nuvoton.com>
+ - Mia Lin <mimi05633@gmail.com>
+
+properties:
+ compatible:
+ const: nuvoton,nct3018y
+
+ reg:
+ maxItems: 1
+
+ start-year: true
+
+ reset-source: true
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@6f {
+ compatible = "nuvoton,nct3018y";
+ reg = <0x6f>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt
deleted file mode 100644
index 217b7cd06c11..000000000000
--- a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.txt
+++ /dev/null
@@ -1,32 +0,0 @@
-* NXP PCF85063 Real Time Clock
-
-Required properties:
-- compatible: Should one of contain:
- "nxp,pca85073a",
- "nxp,pcf85063",
- "nxp,pcf85063a",
- "nxp,pcf85063tp",
- "microcrystal,rv8263"
-- reg: I2C address for chip.
-
-Optional property:
-- quartz-load-femtofarads: The capacitive load of the quartz(x-tal),
- expressed in femto Farad (fF). Valid values are 7000 and 12500.
- Default value (if no value is specified) is 7000fF.
-
-Optional child node:
-- clock: Provide this if the square wave pin is used as boot-enabled fixed clock.
-
-Example:
-
-pcf85063: rtc@51 {
- compatible = "nxp,pcf85063";
- reg = <0x51>;
- quartz-load-femtofarads = <12500>;
-
- clock {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <32768>;
- };
-};
diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
new file mode 100644
index 000000000000..2f892f8640d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/nxp,pcf85063.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP PCF85063 Real Time Clock
+
+maintainers:
+ - Alexander Stein <alexander.stein@ew.tq-group.com>
+
+properties:
+ compatible:
+ enum:
+ - microcrystal,rv8263
+ - nxp,pcf85063
+ - nxp,pcf85063a
+ - nxp,pcf85063tp
+ - nxp,pca85073a
+
+ reg:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 0
+
+ clock-output-names:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ quartz-load-femtofarads:
+ description:
+ The capacitive load of the quartz(x-tal).
+ enum: [7000, 12500]
+ default: 7000
+
+ clock:
+ $ref: /schemas/clock/fixed-clock.yaml
+ description:
+ Provide this if the square wave pin is used as boot-enabled
+ fixed clock.
+
+ wakeup-source: true
+
+allOf:
+ - $ref: rtc.yaml#
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - microcrystal,rv8263
+ then:
+ properties:
+ quartz-load-femtofarads: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - nxp,pcf85063
+ then:
+ properties:
+ quartz-load-femtofarads:
+ const: 7000
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@51 {
+ compatible = "nxp,pcf85063a";
+ reg = <0x51>;
+ quartz-load-femtofarads = <12500>;
+
+ clock {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32768>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
index 6fa7d9fc2dc7..23ab5bb4f395 100644
--- a/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/qcom-pm8xxx-rtc.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm PM8xxx PMIC RTC device
maintainers:
- - Satya Priya <skakit@codeaurora.org>
+ - Satya Priya <quic_c_skakit@quicinc.com>
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
deleted file mode 100644
index 36f610bb051e..000000000000
--- a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-Dallas DS1307 and compatible RTC
-
-Required properties:
-- compatible: should be one of:
- "dallas,ds1307",
- "dallas,ds1308",
- "dallas,ds1337",
- "dallas,ds1338",
- "dallas,ds1339",
- "dallas,ds1388",
- "dallas,ds1340",
- "dallas,ds1341",
- "maxim,ds3231",
- "st,m41t0",
- "st,m41t00",
- "st,m41t11",
- "microchip,mcp7940x",
- "microchip,mcp7941x",
- "pericom,pt7c4338",
- "epson,rx8025",
- "isil,isl12057"
- "epson,rx8130"
-- reg: I2C bus address of the device
-
-Optional properties:
-- interrupts: rtc alarm interrupt.
-- clock-output-names: From common clock binding to override the default output
- clock name
-- wakeup-source: Enables wake up of host system on alarm
-- trickle-resistor-ohms : ds1339, ds1340 and ds 1388 only
- Selected resistor for trickle charger
- Possible values are 250, 2000, 4000
- Should be given if trickle charger should be enabled
-- aux-voltage-chargeable: ds1339, ds1340, ds1388 and rx8130 only
- Tells whether the battery/supercap of the RTC (if any) is
- chargeable or not.
- Possible values are 0 (not chargeable), 1 (chargeable)
-
-Deprecated properties:
-- trickle-diode-disable : ds1339, ds1340 and ds1388 only
- Do not use internal trickle charger diode
- Should be given if internal trickle charger diode should be disabled
- (superseded by aux-voltage-chargeable)
-
-Example:
- ds1339: rtc@68 {
- compatible = "dallas,ds1339";
- reg = <0x68>;
- interrupt-parent = <&gpio4>;
- interrupts = <20 0>;
- trickle-resistor-ohms = <250>;
- };
diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.yaml b/Documentation/devicetree/bindings/rtc/rtc-ds1307.yaml
new file mode 100644
index 000000000000..98d10e680144
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.yaml
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/rtc-ds1307.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dallas DS1307 and compatible RTC
+
+maintainers:
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - dallas,ds1307
+ - dallas,ds1308
+ - dallas,ds1337
+ - dallas,ds1338
+ - dallas,ds1339
+ - dallas,ds1388
+ - dallas,ds1340
+ - dallas,ds1341
+ - maxim,ds3231
+ - st,m41t0
+ - st,m41t00
+ - st,m41t11
+ - microchip,mcp7940x
+ - microchip,mcp7941x
+ - pericom,pt7c4338
+ - epson,rx8025
+ - isil,isl12057
+ - epson,rx8130
+
+ - items:
+ - enum:
+ - st,m41t00
+ - const: dallas,ds1338
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 2
+
+ interrupt-names:
+ maxItems: 2
+
+ "#clock-cells":
+ const: 1
+
+ clock-output-names:
+ description: From common clock binding to override the default output clock name.
+
+ wakeup-source:
+ description: Enables wake up of host system on alarm.
+
+ vcc-supply: true
+
+allOf:
+ - $ref: rtc.yaml
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - dallas,ds1339
+ - dallas,ds1340
+ - dallas,ds1388
+ then:
+ properties:
+ trickle-resistor-ohms:
+ description: Selected resistor for trickle charger. Should be specified if trickle
+ charger should be enabled.
+ enum: [ 250, 2000, 4000 ]
+
+ trickle-diode-disable:
+ description: Do not use internal trickle charger diode. Should be given if internal
+ trickle charger diode should be disabled (superseded by aux-voltage-chargeable)
+ deprecated: true
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rtc@68 {
+ compatible = "dallas,ds1337";
+ reg = <0x68>;
+ interrupt-parent = <&gpio4>;
+ interrupts = <20 0>;
+ trickle-resistor-ohms = <250>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt b/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
index 55a0c8874c03..7212076a8f1b 100644
--- a/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
+++ b/Documentation/devicetree/bindings/rtc/rtc-mt6397.txt
@@ -14,6 +14,8 @@ For MediaTek PMIC wrapper bus bindings, see:
Required properties:
- compatible: Should be one of follows
"mediatek,mt6323-rtc": for MT6323 PMIC
+ "mediatek,mt6358-rtc": for MT6358 PMIC
+ "mediatek,mt6366-rtc", "mediatek,mt6358-rtc": for MT6366 PMIC
"mediatek,mt6397-rtc": for MT6397 PMIC
Example:
diff --git a/Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml b/Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml
new file mode 100644
index 000000000000..d995ef04a6eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/ti,k3-rtc.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rtc/ti,k3-rtc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments K3 Real Time Clock
+
+maintainers:
+ - Nishanth Menon <nm@ti.com>
+
+description: |
+ This RTC appears in the AM62x family of SoCs.
+
+allOf:
+ - $ref: "rtc.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - ti,am62-rtc
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: VBUS Interface clock
+ - description: 32k Clock source (external or internal).
+
+ clock-names:
+ items:
+ - const: vbus
+ - const: osc32k
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ rtc@2b1f0000 {
+ compatible = "ti,am62-rtc";
+ reg = <0x2b1f0000 0x100>;
+ interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&bar 0>;
+ clocks = <&foo 0>, <&foo 1>;
+ clock-names = "vbus", "osc32k";
+ wakeup-source;
+ };
diff --git a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
index 13925bb78ec7..d9fc120c61cc 100644
--- a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
@@ -30,6 +30,8 @@ properties:
- dallas,ds1672
# Extremely Accurate I²C RTC with Integrated Crystal and SRAM
- dallas,ds3232
+ # EM Microelectronic EM3027 RTC
+ - emmicro,em3027
# I2C-BUS INTERFACE REAL TIME CLOCK MODULE
- epson,rx8010
# I2C-BUS INTERFACE REAL TIME CLOCK MODULE
diff --git a/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml b/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
index bdb72d3ddf2a..7ed0230f6c67 100644
--- a/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
+++ b/Documentation/devicetree/bindings/rtc/xlnx,zynqmp-rtc.yaml
@@ -23,8 +23,15 @@ properties:
reg:
maxItems: 1
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: rtc
+
interrupts:
- minItems: 2
+ maxItems: 2
interrupt-names:
items:
@@ -39,6 +46,7 @@ properties:
minimum: 0x1
maximum: 0x1FFFFF
default: 0x198233
+ deprecated: true
required:
- compatible
@@ -61,5 +69,7 @@ examples:
interrupts = <0 26 4>, <0 27 4>;
interrupt-names = "alarm", "sec";
calibration = <0x198233>;
+ clock-names = "rtc";
+ clocks = <&rtc_clk>;
};
};
diff --git a/Documentation/devicetree/bindings/serial/8250.yaml b/Documentation/devicetree/bindings/serial/8250.yaml
index 5f6b113d378f..6258f5f59b19 100644
--- a/Documentation/devicetree/bindings/serial/8250.yaml
+++ b/Documentation/devicetree/bindings/serial/8250.yaml
@@ -62,6 +62,7 @@ properties:
- const: mrvl,pxa-uart
- const: nuvoton,wpcm450-uart
- const: nuvoton,npcm750-uart
+ - const: nuvoton,npcm845-uart
- const: nvidia,tegra20-uart
- const: nxp,lpc3220-uart
- items:
diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 72e8868db3e0..7822705ad16c 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson SoC UART Serial Interface
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The Amlogic Meson SoC UART Serial Interface is present on a large range
diff --git a/Documentation/devicetree/bindings/serial/atmel,at91-usart.yaml b/Documentation/devicetree/bindings/serial/atmel,at91-usart.yaml
new file mode 100644
index 000000000000..30b2131b5860
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/atmel,at91-usart.yaml
@@ -0,0 +1,190 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/atmel,at91-usart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel Universal Synchronous Asynchronous Receiver/Transmitter (USART)
+
+maintainers:
+ - Richard Genoud <richard.genoud@gmail.com>
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - atmel,at91rm9200-usart
+ - atmel,at91sam9260-usart
+ - microchip,sam9x60-usart
+ - items:
+ - const: atmel,at91rm9200-dbgu
+ - const: atmel,at91rm9200-usart
+ - items:
+ - const: atmel,at91sam9260-dbgu
+ - const: atmel,at91sam9260-usart
+ - items:
+ - const: microchip,sam9x60-dbgu
+ - const: microchip,sam9x60-usart
+ - const: atmel,at91sam9260-dbgu
+ - const: atmel,at91sam9260-usart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: usart
+ - const: gclk
+
+ clocks:
+ minItems: 1
+ items:
+ - description: USART Peripheral Clock
+ - description: USART Generic Clock
+
+ dmas:
+ items:
+ - description: TX DMA Channel
+ - description: RX DMA Channel
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+ atmel,usart-mode:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Must be either <AT91_USART_MODE_SPI> for SPI or
+ <AT91_USART_MODE_SERIAL> for USART (found in dt-bindings/mfd/at91-usart.h).
+ enum: [ 0, 1 ]
+
+ atmel,use-dma-rx:
+ type: boolean
+ description: use of PDC or DMA for receiving data
+
+ atmel,use-dma-tx:
+ type: boolean
+ description: use of PDC or DMA for transmitting data
+
+ atmel,fifo-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Maximum number of data the RX and TX FIFOs can store for FIFO
+ capable USARTS.
+ enum: [ 16, 32 ]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clock-names
+ - clocks
+ - atmel,usart-mode
+
+allOf:
+ - if:
+ properties:
+ atmel,usart-mode:
+ const: 1
+ then:
+ allOf:
+ - $ref: /schemas/spi/spi-controller.yaml#
+
+ properties:
+ atmel,use-dma-rx: false
+
+ atmel,use-dma-tx: false
+
+ atmel,fifo-size: false
+
+ "#size-cells":
+ const: 0
+
+ "#address-cells":
+ const: 1
+
+ required:
+ - "#size-cells"
+ - "#address-cells"
+
+ else:
+ allOf:
+ - $ref: /schemas/serial/serial.yaml#
+ - $ref: /schemas/serial/rs485.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/mfd/at91-usart.h>
+ #include <dt-bindings/dma/at91.h>
+
+ /* use PDC */
+ usart0: serial@fff8c000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xfff8c000 0x4000>;
+ atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+ interrupts = <7>;
+ clocks = <&usart0_clk>;
+ clock-names = "usart";
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ rts-gpios = <&pioD 15 GPIO_ACTIVE_LOW>;
+ cts-gpios = <&pioD 16 GPIO_ACTIVE_LOW>;
+ dtr-gpios = <&pioD 17 GPIO_ACTIVE_LOW>;
+ dsr-gpios = <&pioD 18 GPIO_ACTIVE_LOW>;
+ dcd-gpios = <&pioD 20 GPIO_ACTIVE_LOW>;
+ rng-gpios = <&pioD 19 GPIO_ACTIVE_LOW>;
+ };
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/mfd/at91-usart.h>
+ #include <dt-bindings/dma/at91.h>
+
+ /* use DMA */
+ usart1: serial@f001c000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xf001c000 0x100>;
+ atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH 5>;
+ clocks = <&usart0_clk>;
+ clock-names = "usart";
+ atmel,use-dma-rx;
+ atmel,use-dma-tx;
+ dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(3)>,
+ <&dma0 2 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+ dma-names = "tx", "rx";
+ atmel,fifo-size = <32>;
+ };
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/mfd/at91-usart.h>
+ #include <dt-bindings/dma/at91.h>
+
+ /* SPI mode */
+ spi0: spi@f001c000 {
+ compatible = "atmel,at91sam9260-usart";
+ reg = <0xf001c000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,usart-mode = <AT91_USART_MODE_SPI>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH 5>;
+ clocks = <&usart0_clk>;
+ clock-names = "usart";
+ dmas = <&dma0 2 AT91_DMA_CFG_PER_ID(3)>,
+ <&dma0 2 (AT91_DMA_CFG_PER_ID(4) | AT91_DMA_CFG_FIFOCFG_ASAP)>;
+ dma-names = "tx", "rx";
+ cs-gpios = <&pioB 3 GPIO_ACTIVE_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/serial/cdns,uart.yaml b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
index fcdbe6f87e98..876b8cf1cafb 100644
--- a/Documentation/devicetree/bindings/serial/cdns,uart.yaml
+++ b/Documentation/devicetree/bindings/serial/cdns,uart.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/serial/cdns,uart.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Cadence UART Controller Device Tree Bindings
+title: Cadence UART Controller
maintainers:
- Michal Simek <michal.simek@xilinx.com>
diff --git a/Documentation/devicetree/bindings/serial/efm32-uart.txt b/Documentation/devicetree/bindings/serial/efm32-uart.txt
deleted file mode 100644
index 4f8d8fde0c1c..000000000000
--- a/Documentation/devicetree/bindings/serial/efm32-uart.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-* Energymicro efm32 UART
-
-Required properties:
-- compatible : Should be "energymicro,efm32-uart"
-- reg : Address and length of the register set
-- interrupts : Should contain uart interrupt
-
-Optional properties:
-- energymicro,location : Decides the location of the USART I/O pins.
- Allowed range : [0 .. 5]
- Default: 0
-
-Example:
-
-uart@4000c400 {
- compatible = "energymicro,efm32-uart";
- reg = <0x4000c400 0x400>;
- interrupts = <15>;
- energymicro,location = <0>;
-};
diff --git a/Documentation/devicetree/bindings/serial/mediatek,uart.yaml b/Documentation/devicetree/bindings/serial/mediatek,uart.yaml
new file mode 100644
index 000000000000..fe098d98af6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/mediatek,uart.yaml
@@ -0,0 +1,121 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/mediatek,uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Universal Asynchronous Receiver/Transmitter (UART)
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+
+allOf:
+ - $ref: serial.yaml#
+
+description: |
+ The MediaTek UART is based on the basic 8250 UART and compatible
+ with 16550A, with enhancements for high speed baud rates and
+ support for DMA.
+
+properties:
+ compatible:
+ oneOf:
+ - const: mediatek,mt6577-uart
+ - items:
+ - enum:
+ - mediatek,mt2701-uart
+ - mediatek,mt2712-uart
+ - mediatek,mt6580-uart
+ - mediatek,mt6582-uart
+ - mediatek,mt6589-uart
+ - mediatek,mt6755-uart
+ - mediatek,mt6765-uart
+ - mediatek,mt6779-uart
+ - mediatek,mt6795-uart
+ - mediatek,mt6797-uart
+ - mediatek,mt7622-uart
+ - mediatek,mt7623-uart
+ - mediatek,mt7629-uart
+ - mediatek,mt7986-uart
+ - mediatek,mt8127-uart
+ - mediatek,mt8135-uart
+ - mediatek,mt8173-uart
+ - mediatek,mt8183-uart
+ - mediatek,mt8186-uart
+ - mediatek,mt8188-uart
+ - mediatek,mt8192-uart
+ - mediatek,mt8195-uart
+ - mediatek,mt8516-uart
+ - const: mediatek,mt6577-uart
+
+ reg:
+ description: The base address of the UART register bank
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: The clock the baudrate is derived from
+ - description: The bus clock for register accesses
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: baud
+ - const: bus
+
+ dmas:
+ items:
+ - description: phandle to TX DMA
+ - description: phandle to RX DMA
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+ interrupts:
+ minItems: 1
+ maxItems: 2
+
+ interrupt-names:
+ description:
+ The UART interrupt and optionally the RX in-band wakeup interrupt.
+ minItems: 1
+ items:
+ - const: uart
+ - const: wakeup
+
+ pinctrl-0: true
+ pinctrl-1: true
+
+ pinctrl-names:
+ minItems: 1
+ items:
+ - const: default
+ - const: sleep
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ serial@11006000 {
+ compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart";
+ reg = <0x11006000 0x400>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_SPI 52 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-names = "uart", "wakeup";
+ clocks = <&uart_clk>, <&bus_clk>;
+ clock-names = "baud", "bus";
+ pinctrl-0 = <&uart_pin>;
+ pinctrl-1 = <&uart_pin_sleep>;
+ pinctrl-names = "default", "sleep";
+ };
diff --git a/Documentation/devicetree/bindings/serial/mtk-uart.txt b/Documentation/devicetree/bindings/serial/mtk-uart.txt
deleted file mode 100644
index 113b5d6a2245..000000000000
--- a/Documentation/devicetree/bindings/serial/mtk-uart.txt
+++ /dev/null
@@ -1,59 +0,0 @@
-* MediaTek Universal Asynchronous Receiver/Transmitter (UART)
-
-Required properties:
-- compatible should contain:
- * "mediatek,mt2701-uart" for MT2701 compatible UARTS
- * "mediatek,mt2712-uart" for MT2712 compatible UARTS
- * "mediatek,mt6580-uart" for MT6580 compatible UARTS
- * "mediatek,mt6582-uart" for MT6582 compatible UARTS
- * "mediatek,mt6589-uart" for MT6589 compatible UARTS
- * "mediatek,mt6755-uart" for MT6755 compatible UARTS
- * "mediatek,mt6765-uart" for MT6765 compatible UARTS
- * "mediatek,mt6779-uart" for MT6779 compatible UARTS
- * "mediatek,mt6795-uart" for MT6795 compatible UARTS
- * "mediatek,mt6797-uart" for MT6797 compatible UARTS
- * "mediatek,mt7622-uart" for MT7622 compatible UARTS
- * "mediatek,mt7623-uart" for MT7623 compatible UARTS
- * "mediatek,mt7629-uart" for MT7629 compatible UARTS
- * "mediatek,mt7986-uart", "mediatek,mt6577-uart" for MT7986 compatible UARTS
- * "mediatek,mt8127-uart" for MT8127 compatible UARTS
- * "mediatek,mt8135-uart" for MT8135 compatible UARTS
- * "mediatek,mt8173-uart" for MT8173 compatible UARTS
- * "mediatek,mt8183-uart", "mediatek,mt6577-uart" for MT8183 compatible UARTS
- * "mediatek,mt8186-uart", "mediatek,mt6577-uart" for MT8183 compatible UARTS
- * "mediatek,mt8192-uart", "mediatek,mt6577-uart" for MT8192 compatible UARTS
- * "mediatek,mt8195-uart", "mediatek,mt6577-uart" for MT8195 compatible UARTS
- * "mediatek,mt8516-uart" for MT8516 compatible UARTS
- * "mediatek,mt6577-uart" for MT6577 and all of the above
-
-- reg: The base address of the UART register bank.
-
-- interrupts:
- index 0: an interrupt specifier for the UART controller itself
- index 1: optional, an interrupt specifier with edge sensitivity on Rx pin to
- support Rx in-band wake up. If one would like to use this feature,
- one must create an addtional pinctrl to reconfigure Rx pin to normal
- GPIO before suspend.
-
-- clocks : Must contain an entry for each entry in clock-names.
- See ../clocks/clock-bindings.txt for details.
-- clock-names:
- - "baud": The clock the baudrate is derived from
- - "bus": The bus clock for register accesses (optional)
-
-For compatibility with older device trees an unnamed clock is used for the
-baud clock if the baudclk does not exist. Do not use this for new designs.
-
-Example:
-
- uart0: serial@11006000 {
- compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart";
- reg = <0x11006000 0x400>;
- interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_LOW>,
- <GIC_SPI 52 IRQ_TYPE_EDGE_FALLING>;
- clocks = <&uart_clk>, <&bus_clk>;
- clock-names = "baud", "bus";
- pinctrl-names = "default", "sleep";
- pinctrl-0 = <&uart_pin>;
- pinctrl-1 = <&uart_pin_sleep>;
- };
diff --git a/Documentation/devicetree/bindings/serial/pl011.yaml b/Documentation/devicetree/bindings/serial/pl011.yaml
index d8aed84abcd3..80af72859876 100644
--- a/Documentation/devicetree/bindings/serial/pl011.yaml
+++ b/Documentation/devicetree/bindings/serial/pl011.yaml
@@ -94,6 +94,12 @@ properties:
resets:
maxItems: 1
+ reg-io-width:
+ description:
+ The size (in bytes) of the IO accesses that should be performed
+ on the device.
+ enum: [1, 4]
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
index 87180d95cd4c..1957b9d782e8 100644
--- a/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,hscif.yaml
@@ -57,6 +57,7 @@ properties:
- items:
- enum:
- renesas,hscif-r8a779a0 # R-Car V3U
+ - renesas,hscif-r8a779f0 # R-Car S4-8
- renesas,hscif-r8a779g0 # R-Car V4H
- const: renesas,rcar-gen4-hscif # R-Car Gen4
- const: renesas,hscif # generic HSCIF compatible UART
diff --git a/Documentation/devicetree/bindings/serial/renesas,scif.yaml b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
index 90fe45265fbc..f930e7f1349f 100644
--- a/Documentation/devicetree/bindings/serial/renesas,scif.yaml
+++ b/Documentation/devicetree/bindings/serial/renesas,scif.yaml
@@ -76,7 +76,7 @@ properties:
- items:
- enum:
- - renesas,scif-r9a07g043 # RZ/G2UL
+ - renesas,scif-r9a07g043 # RZ/G2UL and RZ/Five
- renesas,scif-r9a07g054 # RZ/V2L
- const: renesas,scif-r9a07g044 # RZ/G2{L,LC} fallback
diff --git a/Documentation/devicetree/bindings/serial/rs485.yaml b/Documentation/devicetree/bindings/serial/rs485.yaml
index f2c9c9fe6aa7..90a1bab40f05 100644
--- a/Documentation/devicetree/bindings/serial/rs485.yaml
+++ b/Documentation/devicetree/bindings/serial/rs485.yaml
@@ -22,12 +22,12 @@ properties:
- description: Delay between rts signal and beginning of data sent in
milliseconds. It corresponds to the delay before sending data.
default: 0
- maximum: 1000
+ maximum: 100
- description: Delay between end of data sent and rts signal in milliseconds.
It corresponds to the delay after sending data and actual release
of the line.
default: 0
- maximum: 1000
+ maximum: 100
rs485-rts-active-low:
description: drive RTS low when sending (default is high).
diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.yaml b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
index 901c1e2cea28..8bd88d5cbb11 100644
--- a/Documentation/devicetree/bindings/serial/samsung_uart.yaml
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.yaml
@@ -17,7 +17,10 @@ description: |+
properties:
compatible:
- items:
+ oneOf:
+ - items:
+ - const: samsung,exynosautov9-uart
+ - const: samsung,exynos850-uart
- enum:
- apple,s5l-uart
- axis,artpec8-uart
@@ -37,7 +40,6 @@ properties:
description: |
The size (in bytes) of the IO accesses that should be performed
on the device.
- $ref: /schemas/types.yaml#/definitions/uint32
enum: [ 1, 4 ]
clocks:
@@ -69,6 +71,9 @@ properties:
minItems: 1
maxItems: 2
+ power-domains:
+ maxItems: 1
+
samsung,uart-fifosize:
description: The fifo size supported by the UART channel.
$ref: /schemas/types.yaml#/definitions/uint32
diff --git a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
index 12137fe80acf..b9c2287c5d1e 100644
--- a/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/snps-dw-apb-uart.yaml
@@ -26,6 +26,7 @@ properties:
- rockchip,rk1808-uart
- rockchip,rk3036-uart
- rockchip,rk3066-uart
+ - rockchip,rk3128-uart
- rockchip,rk3188-uart
- rockchip,rk3288-uart
- rockchip,rk3308-uart
@@ -33,7 +34,9 @@ properties:
- rockchip,rk3368-uart
- rockchip,rk3399-uart
- rockchip,rk3568-uart
+ - rockchip,rk3588-uart
- rockchip,rv1108-uart
+ - rockchip,rv1126-uart
- const: snps,dw-apb-uart
- items:
- enum:
diff --git a/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml b/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
index 2e9b64abde70..ea1e637661c7 100644
--- a/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
@@ -5,7 +5,7 @@
$id: "http://devicetree.org/schemas/serial/sunplus,sp7021-uart.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-title: Sunplus SoC SP7021 UART Controller Device Tree Bindings
+title: Sunplus SoC SP7021 UART Controller
maintainers:
- Hammer Hsieh <hammerh0314@gmail.com>
diff --git a/Documentation/devicetree/bindings/serio/allwinner,sun4i-a10-ps2.yaml b/Documentation/devicetree/bindings/serio/allwinner,sun4i-a10-ps2.yaml
index 2ecab8ed702a..7fa70fd1f291 100644
--- a/Documentation/devicetree/bindings/serio/allwinner,sun4i-a10-ps2.yaml
+++ b/Documentation/devicetree/bindings/serio/allwinner,sun4i-a10-ps2.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/serio/allwinner,sun4i-a10-ps2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 PS2 Host Controller Device Tree Bindings
+title: Allwinner A10 PS2 Host Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/serio/ps2-gpio.txt b/Documentation/devicetree/bindings/serio/ps2-gpio.txt
deleted file mode 100644
index 7b7bc9cdf986..000000000000
--- a/Documentation/devicetree/bindings/serio/ps2-gpio.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Device-Tree binding for ps/2 gpio device
-
-Required properties:
- - compatible = "ps2-gpio"
- - data-gpios: the data pin
- - clk-gpios: the clock pin
- - interrupts: Should trigger on the falling edge of the clock line.
-
-Optional properties:
- - write-enable: Indicates whether write function is provided
- to serio device. Possibly providing the write fn will not work, because
- of the tough timing requirements.
-
-Example nodes:
-
-ps2@0 {
- compatible = "ps2-gpio";
- interrupt-parent = <&gpio>;
- interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
- data-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
- clk-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
- write-enable;
-};
diff --git a/Documentation/devicetree/bindings/serio/ps2-gpio.yaml b/Documentation/devicetree/bindings/serio/ps2-gpio.yaml
new file mode 100644
index 000000000000..a63d9172346f
--- /dev/null
+++ b/Documentation/devicetree/bindings/serio/ps2-gpio.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serio/ps2-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for GPIO based PS/2
+
+maintainers:
+ - Danilo Krummrich <danilokrummrich@dk-develop.de>
+
+properties:
+ compatible:
+ const: ps2-gpio
+
+ data-gpios:
+ description:
+ the gpio used for the data signal - this should be flagged as
+ active high using open drain with (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)
+ from <dt-bindings/gpio/gpio.h> since the signal is open drain by
+ definition
+ maxItems: 1
+
+ clk-gpios:
+ description:
+ the gpio used for the clock signal - this should be flagged as
+ active high using open drain with (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)
+ from <dt-bindings/gpio/gpio.h> since the signal is open drain by
+ definition
+ maxItems: 1
+
+ interrupts:
+ description:
+ The given interrupt should trigger on the falling edge of the clock line.
+ maxItems: 1
+
+ write-enable:
+ type: boolean
+ description:
+ Indicates whether write function is provided to serio device. Possibly
+ providing the write function will not work, because of the tough timing
+ requirements.
+
+required:
+ - compatible
+ - data-gpios
+ - clk-gpios
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ ps2 {
+ compatible = "ps2-gpio";
+ interrupt-parent = <&gpio>;
+ interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
+ data-gpios = <&gpio 24 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ clk-gpios = <&gpio 23 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+ write-enable;
+ };
diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.yaml b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.yaml
index 17db87cb9dab..c3c599096353 100644
--- a/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.yaml
+++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Canvas Video Lookup Table
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
- Maxime Jourdan <mjourdan@baylibre.com>
description: |
diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt
deleted file mode 100644
index 72ff033565e5..000000000000
--- a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-BCM2835 PM (Power domains, watchdog)
-
-The PM block controls power domains and some reset lines, and includes
-a watchdog timer. This binding supersedes the brcm,bcm2835-pm-wdt
-binding which covered some of PM's register range and functionality.
-
-Required properties:
-
-- compatible: Should be "brcm,bcm2835-pm"
-- reg: Specifies base physical address and size of the two
- register ranges ("PM" and "ASYNC_BRIDGE" in that
- order)
-- clocks: a) v3d: The V3D clock from CPRMAN
- b) peri_image: The PERI_IMAGE clock from CPRMAN
- c) h264: The H264 clock from CPRMAN
- d) isp: The ISP clock from CPRMAN
-- #reset-cells: Should be 1. This property follows the reset controller
- bindings[1].
-- #power-domain-cells: Should be 1. This property follows the power domain
- bindings[2].
-
-Optional properties:
-
-- timeout-sec: Contains the watchdog timeout in seconds
-- system-power-controller: Whether the watchdog is controlling the
- system power. This node follows the power controller bindings[3].
-
-[1] Documentation/devicetree/bindings/reset/reset.txt
-[2] Documentation/devicetree/bindings/power/power-domain.yaml
-[3] Documentation/devicetree/bindings/power/power-controller.txt
-
-Example:
-
-pm {
- compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
- #power-domain-cells = <1>;
- #reset-cells = <1>;
- reg = <0x7e100000 0x114>,
- <0x7e00a000 0x24>;
- clocks = <&clocks BCM2835_CLOCK_V3D>,
- <&clocks BCM2835_CLOCK_PERI_IMAGE>,
- <&clocks BCM2835_CLOCK_H264>,
- <&clocks BCM2835_CLOCK_ISP>;
- clock-names = "v3d", "peri_image", "h264", "isp";
- system-power-controller;
-};
diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml
new file mode 100644
index 000000000000..e28ef198a801
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-pm.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/bcm/brcm,bcm2835-pm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM2835 PM (Power domains, watchdog)
+
+description: |
+ The PM block controls power domains and some reset lines, and includes a
+ watchdog timer.
+
+maintainers:
+ - Nicolas Saenz Julienne <nsaenz@kernel.org>
+
+allOf:
+ - $ref: /schemas/watchdog/watchdog.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - brcm,bcm2835-pm
+ - brcm,bcm2711-pm
+ - const: brcm,bcm2835-pm-wdt
+
+ reg:
+ minItems: 2
+ maxItems: 3
+
+ reg-names:
+ minItems: 2
+ items:
+ - const: pm
+ - const: asb
+ - const: rpivid_asb
+
+ "#power-domain-cells":
+ const: 1
+
+ "#reset-cells":
+ const: 1
+
+ clocks:
+ minItems: 4
+ maxItems: 4
+
+ clock-names:
+ items:
+ - const: v3d
+ - const: peri_image
+ - const: h264
+ - const: isp
+
+ system-power-controller:
+ type: boolean
+
+ timeout-sec: true
+
+required:
+ - compatible
+ - reg
+ - "#power-domain-cells"
+ - "#reset-cells"
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/bcm2835.h>
+
+ watchdog@7e100000 {
+ compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
+ #power-domain-cells = <1>;
+ #reset-cells = <1>;
+ reg = <0x7e100000 0x114>,
+ <0x7e00a000 0x24>;
+ reg-names = "pm", "asb";
+ clocks = <&clocks BCM2835_CLOCK_V3D>,
+ <&clocks BCM2835_CLOCK_PERI_IMAGE>,
+ <&clocks BCM2835_CLOCK_H264>,
+ <&clocks BCM2835_CLOCK_ISP>;
+ clock-names = "v3d", "peri_image", "h264", "isp";
+ system-power-controller;
+ };
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml
index 26487daa64d9..d71bb20d4907 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mm-vpu-blk-ctrl.yaml
@@ -27,25 +27,22 @@ properties:
const: 1
power-domains:
- minItems: 4
maxItems: 4
power-domain-names:
- items:
- - const: bus
- - const: g1
- - const: g2
- - const: h1
+ maxItems: 4
clocks:
- minItems: 3
maxItems: 3
clock-names:
- items:
- - const: g1
- - const: g2
- - const: h1
+ maxItems: 3
+
+ interconnects:
+ maxItems: 3
+
+ interconnect-names:
+ maxItems: 3
required:
- compatible
@@ -55,6 +52,97 @@ required:
- clocks
- clock-names
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8mm-vpu-blk-ctrl
+ then:
+ properties:
+ power-domains:
+ items:
+ - description: bus power domain
+ - description: G1 decoder power domain
+ - description: G2 decoder power domain
+ - description: H1 encoder power domain
+
+ power-domain-names:
+ items:
+ - const: bus
+ - const: g1
+ - const: g2
+ - const: h1
+
+ clocks:
+ items:
+ - description: G1 decoder clk
+ - description: G2 decoder clk
+ - description: H1 encoder clk
+
+ clock-names:
+ items:
+ - const: g1
+ - const: g2
+ - const: h1
+
+ interconnects:
+ items:
+ - description: G1 decoder interconnect
+ - description: G2 decoder interconnect
+ - description: H1 encoder power domain
+
+ interconnect-names:
+ items:
+ - const: g1
+ - const: g2
+ - const: h1
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,imx8mp-vpu-blk-ctrl
+ then:
+ properties:
+ power-domains:
+ items:
+ - description: bus power domain
+ - description: G1 decoder power domain
+ - description: G2 decoder power domain
+ - description: VC8000E encoder power domain
+
+ power-domain-names:
+ items:
+ - const: bus
+ - const: g1
+ - const: g2
+ - const: vc8000e
+
+ clocks:
+ items:
+ - description: G1 decoder clk
+ - description: G2 decoder clk
+ - description: VC8000E encoder clk
+
+ clock-names:
+ items:
+ - const: g1
+ - const: g2
+ - const: vc8000e
+
+ interconnects:
+ items:
+ - description: G1 decoder interconnect
+ - description: G2 decoder interconnect
+ - description: VC8000E encoder interconnect
+
+ interconnect-names:
+ items:
+ - const: g1
+ - const: g2
+ - const: vc8000e
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml
index 563e1d0e327f..1be4ce2a45e8 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hdmi-blk-ctrl.yaml
@@ -52,6 +52,15 @@ properties:
- const: ref_266m
- const: ref_24m
+ interconnects:
+ maxItems: 3
+
+ interconnect-names:
+ items:
+ - const: hrv
+ - const: lcdif-hdmi
+ - const: hdcp
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hsio-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hsio-blk-ctrl.yaml
index c1e29d94f40e..c29181a9745b 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hsio-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-hsio-blk-ctrl.yaml
@@ -48,6 +48,16 @@ properties:
- const: usb
- const: pcie
+ interconnects:
+ maxItems: 4
+
+ interconnect-names:
+ items:
+ - const: noc-pcie
+ - const: usb1
+ - const: usb2
+ - const: pcie
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
index b246d8386ba4..dadb6108e321 100644
--- a/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx8mp-media-blk-ctrl.yaml
@@ -64,6 +64,20 @@ properties:
- const: isp
- const: phy
+ interconnects:
+ maxItems: 8
+
+ interconnect-names:
+ items:
+ - const: lcdif-rd
+ - const: lcdif-wr
+ - const: isi0
+ - const: isi1
+ - const: isi2
+ - const: isp0
+ - const: isp1
+ - const: dwe
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
new file mode 100644
index 000000000000..792ebecec22d
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-media-blk-ctrl.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-media-blk-ctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX93 Media blk-ctrl
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+description:
+ The i.MX93 MEDIAMIX domain contains control and status registers known
+ as MEDIAMIX Block Control (MEDIAMIX BLK_CTRL). These registers include
+ clocking, reset, and miscellaneous top-level controls for peripherals
+ within the MEDIAMIX domain
+
+properties:
+ compatible:
+ items:
+ - const: fsl,imx93-media-blk-ctrl
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#power-domain-cells':
+ const: 1
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ maxItems: 10
+
+ clock-names:
+ items:
+ - const: apb
+ - const: axi
+ - const: nic
+ - const: disp
+ - const: cam
+ - const: pxp
+ - const: lcdif
+ - const: isi
+ - const: csi
+ - const: dsi
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx93-clock.h>
+ #include <dt-bindings/power/fsl,imx93-power.h>
+
+ media_blk_ctrl: system-controller@4ac10000 {
+ compatible = "fsl,imx93-media-blk-ctrl", "syscon";
+ reg = <0x4ac10000 0x10000>;
+ power-domains = <&mediamix>;
+ clocks = <&clk IMX93_CLK_MEDIA_APB>,
+ <&clk IMX93_CLK_MEDIA_AXI>,
+ <&clk IMX93_CLK_NIC_MEDIA_GATE>,
+ <&clk IMX93_CLK_MEDIA_DISP_PIX>,
+ <&clk IMX93_CLK_CAM_PIX>,
+ <&clk IMX93_CLK_PXP_GATE>,
+ <&clk IMX93_CLK_LCDIF_GATE>,
+ <&clk IMX93_CLK_ISI_GATE>,
+ <&clk IMX93_CLK_MIPI_CSI_GATE>,
+ <&clk IMX93_CLK_MIPI_DSI_GATE>;
+ clock-names = "apb", "axi", "nic", "disp", "cam",
+ "pxp", "lcdif", "isi", "csi", "dsi";
+ #power-domain-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml
new file mode 100644
index 000000000000..c1cc69b51981
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx93-src.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/imx/fsl,imx93-src.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX93 System Reset Controller
+
+maintainers:
+ - Peng Fan <peng.fan@nxp.com>
+
+description: |
+ The System Reset Controller (SRC) is responsible for the generation of
+ all the system reset signals and boot argument latching.
+
+ Its main functions are as follows,
+ - Deals with all global system reset sources from other modules,
+ and generates global system reset.
+ - Responsible for power gating of MIXs (Slices) and their memory
+ low power control.
+
+properties:
+ compatible:
+ items:
+ - const: fsl,imx93-src
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+patternProperties:
+ "power-domain@[0-9a-f]+$":
+
+ type: object
+ properties:
+ compatible:
+ items:
+ - const: fsl,imx93-src-slice
+
+ '#power-domain-cells':
+ const: 0
+
+ reg:
+ items:
+ - description: mix slice register region
+ - description: mem slice register region
+
+ clocks:
+ description: |
+ A number of phandles to clocks that need to be enabled
+ during domain power-up sequencing to ensure reset
+ propagation into devices located inside this power domain.
+ minItems: 1
+ maxItems: 5
+
+ required:
+ - compatible
+ - '#power-domain-cells'
+ - reg
+
+required:
+ - compatible
+ - reg
+ - ranges
+ - '#address-cells'
+ - '#size-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/imx93-clock.h>
+
+ system-controller@44460000 {
+ compatible = "fsl,imx93-src", "syscon";
+ reg = <0x44460000 0x10000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ mediamix: power-domain@0 {
+ compatible = "fsl,imx93-src-slice";
+ reg = <0x44462400 0x400>, <0x44465800 0x400>;
+ #power-domain-cells = <0>;
+ clocks = <&clk IMX93_CLK_MEDIA_AXI>,
+ <&clk IMX93_CLK_MEDIA_APB>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
index 31e4d3c339bf..d0a4bc3b03e9 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
+++ b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml
@@ -20,6 +20,7 @@ properties:
compatible:
enum:
- mediatek,mt6779-devapc
+ - mediatek,mt8186-devapc
reg:
description: The base address of devapc register bank
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
new file mode 100644
index 000000000000..4380b98b0dfe
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,ccorr.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mediatek/mediatek,ccorr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek color correction
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - Moudy Ho <moudy.ho@mediatek.com>
+
+description: |
+ MediaTek color correction with 3X3 matrix.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8183-mdp3-ccorr
+
+ reg:
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ description: The register of client driver can be configured by gce with
+ 4 arguments defined in this property. Each GCE subsys id is mapping to
+ a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+ mediatek,gce-events:
+ description:
+ The event id which is mapping to the specific hardware event signal
+ to gce. The event id is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ clocks:
+ minItems: 1
+
+required:
+ - compatible
+ - reg
+ - mediatek,gce-client-reg
+ - mediatek,gce-events
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/gce/mt8183-gce.h>
+
+ mdp3_ccorr: mdp3-ccorr@1401c000 {
+ compatible = "mediatek,mt8183-mdp3-ccorr";
+ reg = <0x1401c000 0x1000>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0xc000 0x1000>;
+ mediatek,gce-events = <CMDQ_EVENT_MDP_CCORR_SOF>,
+ <CMDQ_EVENT_MDP_CCORR_EOF>;
+ clocks = <&mmsys CLK_MM_MDP_CCORR>;
+ };
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mutex.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
index 3fdad71210b4..9241e5fc7cff 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,mutex.yaml
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: http://devicetree.org/schemas/display/mediatek/mediatek,mutex.yaml#
+$id: http://devicetree.org/schemas/soc/mediatek/mediatek,mutex.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Mediatek mutex
@@ -26,10 +26,12 @@ properties:
enum:
- mediatek,mt2701-disp-mutex
- mediatek,mt2712-disp-mutex
+ - mediatek,mt6795-disp-mutex
- mediatek,mt8167-disp-mutex
- mediatek,mt8173-disp-mutex
- mediatek,mt8183-disp-mutex
- mediatek,mt8186-disp-mutex
+ - mediatek,mt8186-mdp3-mutex
- mediatek,mt8192-disp-mutex
- mediatek,mt8195-disp-mutex
@@ -55,6 +57,18 @@ properties:
include/dt-bindings/gce/<chip>-gce.h of each chips.
$ref: /schemas/types.yaml#/definitions/uint32-array
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ description: The register of client driver can be configured by gce with
+ 4 arguments defined in this property. Each GCE subsys id is mapping to
+ a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
new file mode 100644
index 000000000000..69afb329e5f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,wdma.yaml
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mediatek/mediatek,wdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Write Direct Memory Access
+
+maintainers:
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - Moudy Ho <moudy.ho@mediatek.com>
+
+description: |
+ MediaTek Write Direct Memory Access(WDMA) component used to write
+ the data into DMA.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - mediatek,mt8183-mdp3-wdma
+
+ reg:
+ maxItems: 1
+
+ mediatek,gce-client-reg:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ items:
+ - description: phandle of GCE
+ - description: GCE subsys id
+ - description: register offset
+ - description: register size
+ description: The register of client driver can be configured by gce with
+ 4 arguments defined in this property. Each GCE subsys id is mapping to
+ a client defined in the header include/dt-bindings/gce/<chip>-gce.h.
+
+ mediatek,gce-events:
+ description:
+ The event id which is mapping to the specific hardware event signal
+ to gce. The event id is defined in the gce header
+ include/dt-bindings/gce/<chip>-gce.h of each chips.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+
+ power-domains:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+
+ iommus:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - mediatek,gce-client-reg
+ - mediatek,gce-events
+ - power-domains
+ - clocks
+ - iommus
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/gce/mt8183-gce.h>
+ #include <dt-bindings/power/mt8183-power.h>
+ #include <dt-bindings/memory/mt8183-larb-port.h>
+
+ mdp3_wdma: mdp3-wdma@14006000 {
+ compatible = "mediatek,mt8183-mdp3-wdma";
+ reg = <0x14006000 0x1000>;
+ mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0x6000 0x1000>;
+ mediatek,gce-events = <CMDQ_EVENT_MDP_WDMA0_SOF>,
+ <CMDQ_EVENT_MDP_WDMA0_EOF>;
+ power-domains = <&spm MT8183_POWER_DOMAIN_DISP>;
+ clocks = <&mmsys CLK_MM_MDP_WDMA0>;
+ iommus = <&iommu>;
+ };
diff --git a/Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml b/Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
new file mode 100644
index 000000000000..d911fa2d40ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/mediatek/mtk-svs.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mediatek/mtk-svs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Smart Voltage Scaling (SVS) Device Tree Bindings
+
+maintainers:
+ - Roger Lu <roger.lu@mediatek.com>
+ - Matthias Brugger <matthias.bgg@gmail.com>
+ - Kevin Hilman <khilman@kernel.org>
+
+description: |+
+ The SVS engine is a piece of hardware which has several
+ controllers(banks) for calculating suitable voltage to
+ different power domains(CPU/GPU/CCI) according to
+ chip process corner, temperatures and other factors. Then DVFS
+ driver could apply SVS bank voltage to PMIC/Buck.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8183-svs
+ - mediatek,mt8192-svs
+
+ reg:
+ maxItems: 1
+ description: Address range of the MTK SVS controller.
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: Main clock for MTK SVS controller to work.
+
+ clock-names:
+ const: main
+
+ nvmem-cells:
+ minItems: 1
+ description:
+ Phandle to the calibration data provided by a nvmem device.
+ items:
+ - description: SVS efuse for SVS controller
+ - description: Thermal efuse for SVS controller
+
+ nvmem-cell-names:
+ items:
+ - const: svs-calibration-data
+ - const: t-calibration-data
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ items:
+ - const: svs_rst
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - nvmem-cells
+ - nvmem-cell-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ svs@1100b000 {
+ compatible = "mediatek,mt8183-svs";
+ reg = <0 0x1100b000 0 0x1000>;
+ interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infracfg CLK_INFRA_THERM>;
+ clock-names = "main";
+ nvmem-cells = <&svs_calibration>, <&thermal_calibration>;
+ nvmem-cell-names = "svs-calibration-data", "t-calibration-data";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
index 0581dbda4828..d24e2bc444be 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
+++ b/Documentation/devicetree/bindings/soc/mediatek/pwrap.txt
@@ -28,6 +28,7 @@ Required properties in pwrap device node.
"mediatek,mt8173-pwrap" for MT8173 SoCs
"mediatek,mt8183-pwrap" for MT8183 SoCs
"mediatek,mt8186-pwrap" for MT8186 SoCs
+ "mediatek,mt8188-pwrap", "mediatek,mt8195-pwrap" for MT8188 SoCs
"mediatek,mt8195-pwrap" for MT8195 SoCs
"mediatek,mt8516-pwrap" for MT8516 SoCs
- interrupts: IRQ for pwrap in SOC
diff --git a/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml b/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml
index 597d67fba92f..33748a061898 100644
--- a/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml
+++ b/Documentation/devicetree/bindings/soc/microchip/atmel,at91rm9200-tcb.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/soc/microchip/atmel,at91rm9200-tcb.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/soc/microchip/atmel,at91rm9200-tcb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Atmel Timer Counter Block
@@ -75,7 +75,7 @@ patternProperties:
"^pwm@[0-2]$":
description: The timer block channels that are used as PWMs.
- $ref: ../../pwm/pwm.yaml#
+ $ref: /schemas/pwm/pwm.yaml#
type: object
properties:
compatible:
diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
index b0dae51e1d42..04ffee3a7c59 100644
--- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
-$id: "http://devicetree.org/schemas/soc/microchip/microchip,mpfs-sys-controller.yaml#"
-$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+$id: http://devicetree.org/schemas/soc/microchip/microchip,mpfs-sys-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Microchip PolarFire SoC (MPFS) MSS (microprocessor subsystem) system controller
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
index e2e173dfada7..a4eeb7e158e5 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,aoss-qmp.yaml
@@ -13,7 +13,7 @@ description:
This binding describes the hardware component responsible for side channel
requests to the always-on subsystem (AOSS), used for certain power management
requests that is not handled by the standard RPMh interface. Each client in the
- SoC has it's own block of message RAM and IRQ for communication with the AOSS.
+ SoC has its own block of message RAM and IRQ for communication with the AOSS.
The protocol used to communicate in the message RAM is known as Qualcomm
Messaging Protocol (QMP)
@@ -33,6 +33,7 @@ properties:
- qcom,sm8150-aoss-qmp
- qcom,sm8250-aoss-qmp
- qcom,sm8350-aoss-qmp
+ - qcom,sm8450-aoss-qmp
- const: qcom,aoss-qmp
reg:
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml
index 028c5d105adb..f47491aab3b1 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.yaml
@@ -20,6 +20,9 @@ properties:
- qcom,apr-v2
- qcom,gpr
+ power-domains:
+ maxItems: 1
+
qcom,apr-domain:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2, 3, 4, 5, 6, 7]
@@ -52,6 +55,26 @@ properties:
2 = Audio DSP Domain
3 = Application Processor Domain
+ qcom,glink-channels:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description: Channel name used for the communication
+ items:
+ - const: apr_audio_svc
+
+ qcom,intents:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ List of (size, amount) pairs describing what intents should be
+ preallocated for this virtual channel. This can be used to tweak the
+ default intents available for the channel to meet expectations of the
+ remote.
+
+ qcom,smd-channels:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description: Channel name used for the communication
+ items:
+ - const: apr_audio_svc
+
'#address-cells':
const: 1
@@ -97,6 +120,26 @@ patternProperties:
3 = AMDB Service.
4 = Voice processing manager.
+ clock-controller:
+ $ref: /schemas/sound/qcom,q6dsp-lpass-clocks.yaml#
+ description: Qualcomm DSP LPASS clock controller
+ unevaluatedProperties: false
+
+ dais:
+ type: object
+ oneOf:
+ - $ref: /schemas/sound/qcom,q6apm-dai.yaml#
+ - $ref: /schemas/sound/qcom,q6dsp-lpass-ports.yaml#
+ - $ref: /schemas/sound/qcom,q6asm-dais.yaml#
+ unevaluatedProperties: false
+ description: Qualcomm DSP audio ports
+
+ routing:
+ type: object
+ $ref: /schemas/sound/qcom,q6adm-routing.yaml#
+ unevaluatedProperties: false
+ description: Qualcomm DSP LPASS audio routing
+
qcom,protection-domain:
$ref: /schemas/types.yaml#/definitions/string-array
description: protection domain service name and path for apr service
@@ -107,17 +150,44 @@ patternProperties:
"tms/servreg", "msm/modem/wlan_pd".
"tms/servreg", "msm/slpi/sensor_pd".
- '#address-cells':
- const: 1
+ allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,q6afe
+ then:
+ properties:
+ dais:
+ properties:
+ compatible:
+ const: qcom,q6afe-dais
- '#size-cells':
- const: 0
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,q6apm
+ then:
+ properties:
+ dais:
+ properties:
+ compatible:
+ enum:
+ - qcom,q6apm-dais
+ - qcom,q6apm-lpass-dais
- patternProperties:
- "^.*@[0-9a-f]+$":
- type: object
- description:
- Service based devices like clock controllers or digital audio interfaces.
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,q6asm
+ then:
+ properties:
+ dais:
+ properties:
+ compatible:
+ const: qcom,q6asm-dais
additionalProperties: false
@@ -125,6 +195,30 @@ required:
- compatible
- qcom,domain
+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - qcom,gpr
+ then:
+ properties:
+ power-domains: false
+
+ - if:
+ required:
+ - qcom,glink-channels
+ then:
+ properties:
+ qcom,smd-channels: false
+
+ - if:
+ required:
+ - qcom,smd-channels
+ then:
+ properties:
+ qcom,glink-channels: false
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
index f5ecf4a8c377..4a50f1d27724 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,rpmh-rsc.yaml
@@ -65,33 +65,22 @@ properties:
qcom,tcs-config:
$ref: /schemas/types.yaml#/definitions/uint32-matrix
+ minItems: 4
+ maxItems: 4
items:
- - items:
- - description: TCS type
- enum: [ 0, 1, 2, 3 ]
- - description: Number of TCS
- - items:
- - description: TCS type
- enum: [ 0, 1, 2, 3 ]
- - description: Number of TCS
- - items:
- - description: TCS type
- enum: [ 0, 1, 2, 3]
- - description: Numbe r of TCS
- - items:
- - description: TCS type
- enum: [ 0, 1, 2, 3 ]
- - description: Number of TCS
+ items:
+ - description: |
+ TCS type::
+ - ACTIVE_TCS
+ - SLEEP_TCS
+ - WAKE_TCS
+ - CONTROL_TCS
+ enum: [ 0, 1, 2, 3 ]
+ - description: Number of TCS
description: |
The tuple defining the configuration of TCS. Must have two cells which
describe each TCS type. The order of the TCS must match the hardware
configuration.
- Cell 1 (TCS Type):: TCS types to be specified::
- - ACTIVE_TCS
- - SLEEP_TCS
- - WAKE_TCS
- - CONTROL_TCS
- Cell 2 (Number of TCS):: <u32>
qcom,tcs-offset:
$ref: /schemas/types.yaml#/definitions/uint32
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml
index f0f1bf06aea6..09d5bfa920f2 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd-rpm.yaml
@@ -34,6 +34,7 @@ properties:
- qcom,rpm-apq8084
- qcom,rpm-ipq6018
- qcom,rpm-msm8226
+ - qcom,rpm-msm8909
- qcom,rpm-msm8916
- qcom,rpm-msm8936
- qcom,rpm-msm8953
@@ -51,6 +52,9 @@ properties:
$ref: /schemas/clock/qcom,rpmcc.yaml#
unevaluatedProperties: false
+ power-controller:
+ $ref: /schemas/power/qcom,rpmpd.yaml#
+
qcom,smd-channels:
$ref: /schemas/types.yaml#/definitions/string-array
description: Channel name used for the RPM communication
@@ -88,12 +92,33 @@ examples:
qcom,ipc = <&apcs 8 0>;
qcom,smd-edge = <15>;
- rpm-requests {
- compatible = "qcom,rpm-msm8974";
- qcom,smd-channels = "rpm_requests";
+ rpm-requests {
+ compatible = "qcom,rpm-msm8916";
+ qcom,smd-channels = "rpm_requests";
+
+ clock-controller {
+ compatible = "qcom,rpmcc-msm8916", "qcom,rpmcc";
+ #clock-cells = <1>;
+ clocks = <&xo_board>;
+ clock-names = "xo";
+ };
- /* Regulator nodes to follow */
+ power-controller {
+ compatible = "qcom,msm8916-rpmpd";
+ #power-domain-cells = <1>;
+ operating-points-v2 = <&rpmpd_opp_table>;
+
+ rpmpd_opp_table: opp-table {
+ compatible = "operating-points-v2";
+
+ opp-1 {
+ opp-level = <1>;
+ };
+ opp-2 {
+ opp-level = <2>;
+ };
+ };
};
};
- };
-...
+ };
+ };
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml
index bca07bb13ebf..063e595c12f7 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml
@@ -20,87 +20,14 @@ properties:
const: qcom,smd
patternProperties:
- "^.*-edge|rpm$":
- type: object
+ "^smd-edge|rpm$":
+ $ref: /schemas/remoteproc/qcom,smd-edge.yaml#
+ unevaluatedProperties: false
description:
Each subnode of the SMD node represents a remote subsystem or a remote
processor of some sort - or in SMD language an "edge". The name of the
edges are not important.
- properties:
- interrupts:
- maxItems: 1
-
- label:
- $ref: /schemas/types.yaml#/definitions/string
- description:
- Name of the edge, used for debugging and identification purposes. The
- node name will be used if this is not present.
-
- mboxes:
- maxItems: 1
- description:
- Reference to the mailbox representing the outgoing doorbell in APCS for
- this client.
-
- qcom,ipc:
- $ref: /schemas/types.yaml#/definitions/phandle-array
- items:
- - items:
- - description: phandle to a syscon node representing the APCS registers
- - description: u32 representing offset to the register within the syscon
- - description: u32 representing the ipc bit within the register
- description:
- Three entries specifying the outgoing ipc bit used for signaling the
- remote processor.
-
- qcom,smd-edge:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- The identifier of the remote processor in the smd channel allocation
- table.
-
- qcom,remote-pid:
- $ref: /schemas/types.yaml#/definitions/uint32
- description:
- The identifier for the remote processor as known by the rest of the
- system.
-
- rpm-requests:
- type: object
- description:
- In turn, subnodes of the "edges" represent devices tied to SMD
- channels on that "edge". The names of the devices are not
- important. The properties of these nodes are defined by the
- individual bindings for the SMD devices.
-
- properties:
- qcom,smd-channels:
- $ref: /schemas/types.yaml#/definitions/string-array
- minItems: 1
- maxItems: 32
- description:
- A list of channels tied to this device, used for matching the
- device to channels.
-
- required:
- - compatible
- - qcom,smd-channels
-
- additionalProperties: true
-
- required:
- - interrupts
- - qcom,smd-edge
-
- oneOf:
- - required:
- - mboxes
- - required:
- - qcom,ipc
-
- additionalProperties: false
-
required:
- compatible
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml
index 07d2d5398345..f433e6e0a19f 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,spm.yaml
@@ -22,6 +22,7 @@ properties:
- qcom,sdm660-silver-saw2-v4.1-l2
- qcom,msm8998-gold-saw2-v4.1-l2
- qcom,msm8998-silver-saw2-v4.1-l2
+ - qcom,msm8909-saw2-v3.0-cpu
- qcom,msm8916-saw2-v3.0-cpu
- qcom,msm8226-saw2-v2.1-cpu
- qcom,msm8974-saw2-v2.1-cpu
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml
index d891ecfb2691..5320504bb5e0 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.yaml
@@ -77,7 +77,6 @@ properties:
Should reference the tx-enable and tx-rings-empty SMEM states.
qcom,smem-state-names:
- $ref: /schemas/types.yaml#/definitions/string-array
items:
- const: tx-enable
- const: tx-rings-empty
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml
index 473adca4e973..48eda4d0d391 100644
--- a/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml
@@ -20,6 +20,7 @@ properties:
compatible:
enum:
- qcom,rpmh-stats
+ - qcom,sdm845-rpmh-stats
- qcom,rpm-stats
# For older RPM firmware versions with fixed offset for the sleep stats
- qcom,apq8084-rpm-stats
diff --git a/Documentation/devicetree/bindings/soc/renesas/renesas,rzg2l-sysc.yaml b/Documentation/devicetree/bindings/soc/renesas/renesas,rzg2l-sysc.yaml
index ce2875c89329..398663d21ab1 100644
--- a/Documentation/devicetree/bindings/soc/renesas/renesas,rzg2l-sysc.yaml
+++ b/Documentation/devicetree/bindings/soc/renesas/renesas,rzg2l-sysc.yaml
@@ -20,7 +20,7 @@ description:
properties:
compatible:
enum:
- - renesas,r9a07g043-sysc # RZ/G2UL
+ - renesas,r9a07g043-sysc # RZ/G2UL and RZ/Five
- renesas,r9a07g044-sysc # RZ/G2{L,LC}
- renesas,r9a07g054-sysc # RZ/V2L
@@ -44,8 +44,6 @@ properties:
required:
- compatible
- reg
- - interrupts
- - interrupt-names
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
index 75a2b8bb25fb..2ed8cca79b59 100644
--- a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
+++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
@@ -16,9 +16,12 @@ properties:
- enum:
- rockchip,rk3288-sgrf
- rockchip,rk3566-pipe-grf
+ - rockchip,rk3568-pcie3-phy-grf
- rockchip,rk3568-pipe-grf
- rockchip,rk3568-pipe-phy-grf
- rockchip,rk3568-usb2phy-grf
+ - rockchip,rk3588-pcie3-phy-grf
+ - rockchip,rk3588-pcie3-pipe-grf
- rockchip,rv1108-usbgrf
- const: syscon
- items:
@@ -28,6 +31,7 @@ properties:
- rockchip,px30-usb2phy-grf
- rockchip,rk3036-grf
- rockchip,rk3066-grf
+ - rockchip,rk3128-grf
- rockchip,rk3188-grf
- rockchip,rk3228-grf
- rockchip,rk3288-grf
@@ -45,6 +49,8 @@ properties:
- rockchip,rk3568-pmugrf
- rockchip,rv1108-grf
- rockchip,rv1108-pmugrf
+ - rockchip,rv1126-grf
+ - rockchip,rv1126-pmugrf
- const: syscon
- const: simple-mfd
@@ -178,6 +184,7 @@ allOf:
contains:
enum:
- rockchip,px30-usb2phy-grf
+ - rockchip,rk3128-grf
- rockchip,rk3228-grf
- rockchip,rk3308-usb2phy-grf
- rockchip,rk3328-usb2phy-grf
diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
index c30a6437030d..13bb8dfcefe6 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-pmu.yaml
@@ -49,9 +49,6 @@ properties:
reg:
maxItems: 1
- assigned-clock-parents: true
- assigned-clocks: true
-
'#clock-cells':
const: 1
@@ -77,14 +74,20 @@ properties:
Must be identical to the that of the parent interrupt controller.
const: 3
+ reboot-mode:
+ $ref: /schemas/power/reset/syscon-reboot-mode.yaml
+ type: object
+ description:
+ Reboot mode to alter bootloader behavior for the next boot
+
syscon-poweroff:
- $ref: "../../power/reset/syscon-poweroff.yaml#"
+ $ref: /schemas/power/reset/syscon-poweroff.yaml#
type: object
description:
Node for power off method
syscon-reboot:
- $ref: "../../power/reset/syscon-reboot.yaml#"
+ $ref: /schemas/power/reset/syscon-reboot.yaml#
type: object
description:
Node for reboot method
diff --git a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
index fde886a8cf43..60b49562ff69 100644
--- a/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
+++ b/Documentation/devicetree/bindings/soc/samsung/exynos-usi.yaml
@@ -22,8 +22,12 @@ properties:
pattern: "^usi@[0-9a-f]+$"
compatible:
- enum:
- - samsung,exynos850-usi # for USIv2 (Exynos850, ExynosAutoV9)
+ oneOf:
+ - items:
+ - const: samsung,exynosautov9-usi
+ - const: samsung,exynos850-usi
+ - enum:
+ - samsung,exynos850-usi
reg: true
diff --git a/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml b/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
index 64461d432004..847873289f25 100644
--- a/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
+++ b/Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
@@ -65,10 +65,11 @@ properties:
- ti,am4376-pruss0 # for AM437x SoC family and PRUSS unit 0
- ti,am4376-pruss1 # for AM437x SoC family and PRUSS unit 1
- ti,am5728-pruss # for AM57xx SoC family
- - ti,k2g-pruss # for 66AK2G SoC family
+ - ti,am625-pruss # for K3 AM62x SoC family
+ - ti,am642-icssg # for K3 AM64x SoC family
- ti,am654-icssg # for K3 AM65x SoC family
- ti,j721e-icssg # for K3 J721E SoC family
- - ti,am642-icssg # for K3 AM64x SoC family
+ - ti,k2g-pruss # for 66AK2G SoC family
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/adi,adau1977.yaml b/Documentation/devicetree/bindings/sound/adi,adau1977.yaml
index b80454ad97da..847b83398d3d 100644
--- a/Documentation/devicetree/bindings/sound/adi,adau1977.yaml
+++ b/Documentation/devicetree/bindings/sound/adi,adau1977.yaml
@@ -32,8 +32,6 @@ properties:
reset-gpios:
maxItems: 1
- spi-max-frequency: true
-
AVDD-supply:
description: Analog power support for the device.
@@ -52,7 +50,10 @@ required:
- compatible
- AVDD-supply
-additionalProperties: false
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/sound/adi,max98396.yaml b/Documentation/devicetree/bindings/sound/adi,max98396.yaml
index ec4c10c2598a..fd5aa61b467f 100644
--- a/Documentation/devicetree/bindings/sound/adi,max98396.yaml
+++ b/Documentation/devicetree/bindings/sound/adi,max98396.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/adi,max98396.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Analog Devices MAX98396 Speaker Amplifier Device Tree Bindings
+title: Analog Devices MAX98396 Speaker Amplifier
maintainers:
- Ryan Lee <ryans.lee@analog.com>
@@ -24,6 +24,21 @@ properties:
maxItems: 1
description: I2C address of the device.
+ avdd-supply:
+ description: A 1.8V supply that powers up the AVDD pin.
+
+ dvdd-supply:
+ description: A 1.2V supply that powers up the DVDD pin.
+
+ dvddio-supply:
+ description: A 1.2V or 1.8V supply that powers up the VDDIO pin.
+
+ pvdd-supply:
+ description: A 3.0V to 20V supply that powers up the PVDD pin.
+
+ vbat-supply:
+ description: A 3.3V to 5.5V supply that powers up the VBAT pin.
+
adi,vmon-slot-no:
description: slot number of the voltage sense monitor
$ref: "/schemas/types.yaml#/definitions/uint32"
@@ -36,13 +51,22 @@ properties:
$ref: "/schemas/types.yaml#/definitions/uint32"
minimum: 0
maximum: 15
- default: 0
+ default: 1
adi,spkfb-slot-no:
description: slot number of speaker DSP monitor
$ref: "/schemas/types.yaml#/definitions/uint32"
minimum: 0
maximum: 15
+ default: 2
+
+ adi,bypass-slot-no:
+ description:
+ Selects the PCM data input channel that is routed to the speaker
+ audio processing bypass path.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 15
default: 0
adi,interleave-mode:
@@ -54,6 +78,40 @@ properties:
interleaved on a single output channel.
type: boolean
+ adi,dmon-stuck-enable:
+ description:
+ Enables the "data monitor stuck" feature. Once the data monitor is
+ enabled, it actively monitors the selected input data (from DIN) to the
+ speaker amplifier. Once a data error is detected, the data monitor
+ automatically places the device into software shutdown.
+ type: boolean
+
+ adi,dmon-stuck-threshold-bits:
+ description:
+ Sets the threshold for the "data monitor stuck" feature, in bits.
+ enum: [9, 11, 13, 15]
+ default: 15
+
+ adi,dmon-magnitude-enable:
+ description:
+ Enables the "data monitor magnitude" feature. Once the data monitor is
+ enabled, it actively monitors the selected input data (from DIN) to the
+ speaker amplifier. Once a data error is detected, the data monitor
+ automatically places the device into software shutdown.
+ type: boolean
+
+ adi,dmon-magnitude-threshold-bits:
+ description:
+ Sets the threshold for the "data monitor magnitude" feature, in bits.
+ enum: [2, 3, 4, 5]
+ default: 5
+
+ adi,dmon-duration-ms:
+ description:
+ Sets the duration for the "data monitor" feature, in milliseconds.
+ enum: [64, 256, 1024, 4096]
+ default: 64
+
reset-gpios:
maxItems: 1
@@ -72,6 +130,10 @@ examples:
max98396: amplifier@39 {
compatible = "adi,max98396";
reg = <0x39>;
+ dvdd-supply = <&regulator_1v2>;
+ dvddio-supply = <&regulator_1v8>;
+ avdd-supply = <&regulator_1v8>;
+ pvdd-supply = <&regulator_pvdd>;
adi,vmon-slot-no = <0>;
adi,imon-slot-no = <1>;
reset-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
diff --git a/Documentation/devicetree/bindings/sound/ak4375.yaml b/Documentation/devicetree/bindings/sound/ak4375.yaml
index f1d5074a024d..5f0fc584bb38 100644
--- a/Documentation/devicetree/bindings/sound/ak4375.yaml
+++ b/Documentation/devicetree/bindings/sound/ak4375.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/ak4375.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: AK4375 DAC and headphones amplifier Device Tree Bindings
+title: AK4375 DAC and headphones amplifier
maintainers:
- Vincent Knecht <vincent.knecht@mailoo.org>
diff --git a/Documentation/devicetree/bindings/sound/ak4613.yaml b/Documentation/devicetree/bindings/sound/ak4613.yaml
index ef4055ef0ccd..aa8a258a9f1c 100644
--- a/Documentation/devicetree/bindings/sound/ak4613.yaml
+++ b/Documentation/devicetree/bindings/sound/ak4613.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/ak4613.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: AK4613 I2C transmitter Device Tree Bindings
+title: AK4613 I2C transmitter
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
diff --git a/Documentation/devicetree/bindings/sound/ak4642.yaml b/Documentation/devicetree/bindings/sound/ak4642.yaml
index 1e2caa29790e..48a5b2c3934e 100644
--- a/Documentation/devicetree/bindings/sound/ak4642.yaml
+++ b/Documentation/devicetree/bindings/sound/ak4642.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/ak4642.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: AK4642 I2C transmitter Device Tree Bindings
+title: AK4642 I2C transmitter
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
index 559aff13ae23..292fcb643999 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-codec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Codec Device Tree Bindings
+title: Allwinner A10 Codec
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml
index 34f6ee9de392..dd30881ad2f5 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 I2S Controller Device Tree Bindings
+title: Allwinner A10 I2S Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml
index 444a432912bb..68c84e29ce57 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-spdif.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 S/PDIF Controller Device Tree Bindings
+title: Allwinner A10 S/PDIF Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-codec-analog.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-codec-analog.yaml
index 3b764415c9ab..5800de63fc84 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-codec-analog.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun50i-a64-codec-analog.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/allwinner,sun50i-a64-codec-analog.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A64 Analog Codec Device Tree Bindings
+title: Allwinner A64 Analog Codec
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -21,6 +21,11 @@ properties:
description:
Regulator for the headphone amplifier
+ allwinner,internal-bias-resistor:
+ description:
+ Enable the internal 2.2K bias resistor between HBIAS and MICDET pins
+ type: boolean
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml
new file mode 100644
index 000000000000..2f12cabe4c71
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun50i-h6-dmic.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/allwinner,sun50i-h6-dmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner H6 DMIC
+
+maintainers:
+ - Ban Tao <fengzheng923@gmail.com>
+
+properties:
+ compatible:
+ const: allwinner,sun50i-h6-dmic
+
+ "#sound-dai-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Bus Clock
+ - description: Module Clock
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mod
+
+ dmas:
+ items:
+ - description: RX DMA Channel
+
+ dma-names:
+ items:
+ - const: rx
+
+ resets:
+ maxItems: 1
+
+required:
+ - "#sound-dai-cells"
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - dmas
+ - dma-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ #include <dt-bindings/clock/sun50i-h6-ccu.h>
+ #include <dt-bindings/reset/sun50i-h6-ccu.h>
+
+ dmic: dmic@5095000 {
+ #sound-dai-cells = <0>;
+ compatible = "allwinner,sun50i-h6-dmic";
+ reg = <0x05095000 0x400>;
+ interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_DMIC>, <&ccu CLK_DMIC>;
+ clock-names = "bus", "mod";
+ dmas = <&dma 7>;
+ dma-names = "rx";
+ resets = <&ccu RST_BUS_DMIC>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a23-codec-analog.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a23-codec-analog.yaml
index 26eca21e1f0f..1c21a1b390c7 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a23-codec-analog.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a23-codec-analog.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/allwinner,sun8i-a23-codec-analog.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A23 Analog Codec Device Tree Bindings
+title: Allwinner A23 Analog Codec
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
index 19f111f40225..4eb11a8e622b 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun8i-a33-codec.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/allwinner,sun8i-a33-codec.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A33 Codec Device Tree Bindings
+title: Allwinner A33 Codec
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml b/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
index b4b35edcb493..5b8d59245f82 100644
--- a/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
+++ b/Documentation/devicetree/bindings/sound/amlogic,gx-sound-card.yaml
@@ -40,6 +40,7 @@ properties:
patternProperties:
"^dai-link-[0-9]+$":
type: object
+ additionalProperties: false
description: |-
dai-link child nodes:
Container for dai-link level properties and the CODEC sub-nodes.
@@ -63,6 +64,7 @@ patternProperties:
patternProperties:
"^codec-[0-9]+$":
type: object
+ additionalProperties: false
description: |-
Codecs:
dai-link representing backend links should have at least one subnode.
diff --git a/Documentation/devicetree/bindings/sound/apple,mca.yaml b/Documentation/devicetree/bindings/sound/apple,mca.yaml
new file mode 100644
index 000000000000..d5dc92b5b654
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/apple,mca.yaml
@@ -0,0 +1,131 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/apple,mca.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple MCA I2S transceiver
+
+description: |
+ MCA is an I2S transceiver peripheral found on M1 and other Apple chips. It is
+ composed of a number of identical clusters which can operate independently
+ or in an interlinked fashion. Up to 6 clusters have been seen on an MCA.
+
+maintainers:
+ - Martin Povišer <povik+lin@cutebit.org>
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t6000-mca
+ - apple,t8103-mca
+ - const: apple,mca
+
+ reg:
+ items:
+ - description: Register region of the MCA clusters proper
+ - description: Register region of the DMA glue and its FIFOs
+
+ interrupts:
+ minItems: 4
+ maxItems: 6
+ description:
+ One interrupt per each cluster
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ dmas:
+ minItems: 16
+ maxItems: 24
+ description:
+ DMA channels corresponding to the SERDES units in the peripheral. They are
+ listed in groups of four per cluster, and within the group they are given
+ as associated to the TXA, RXA, TXB, RXB units.
+
+ dma-names:
+ minItems: 16
+ items:
+ - const: tx0a
+ - const: rx0a
+ - const: tx0b
+ - const: rx0b
+ - const: tx1a
+ - const: rx1a
+ - const: tx1b
+ - const: rx1b
+ - const: tx2a
+ - const: rx2a
+ - const: tx2b
+ - const: rx2b
+ - const: tx3a
+ - const: rx3a
+ - const: tx3b
+ - const: rx3b
+ - const: tx4a
+ - const: rx4a
+ - const: tx4b
+ - const: rx4b
+ - const: tx5a
+ - const: rx5a
+ - const: tx5b
+ - const: rx5b
+ description: |
+ Names for the DMA channels: 'tx'/'rx', then cluster number, then 'a'/'b'
+ based on the associated SERDES unit.
+
+ clocks:
+ minItems: 4
+ maxItems: 6
+ description:
+ Clusters' input reference clock.
+
+ resets:
+ maxItems: 1
+
+ power-domains:
+ minItems: 5
+ maxItems: 7
+ description:
+ First a general power domain for register access, then the power
+ domains of individual clusters for their operation.
+
+ '#sound-dai-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - dmas
+ - dma-names
+ - clocks
+ - power-domains
+ - '#sound-dai-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ mca: i2s@9b600000 {
+ compatible = "apple,t6000-mca", "apple,mca";
+ reg = <0x9b600000 0x10000>,
+ <0x9b200000 0x20000>;
+
+ clocks = <&nco 0>, <&nco 1>, <&nco 2>, <&nco 3>;
+ power-domains = <&ps_audio_p>, <&ps_mca0>, <&ps_mca1>,
+ <&ps_mca2>, <&ps_mca3>;
+ dmas = <&admac 0>, <&admac 1>, <&admac 2>, <&admac 3>,
+ <&admac 4>, <&admac 5>, <&admac 6>, <&admac 7>,
+ <&admac 8>, <&admac 9>, <&admac 10>, <&admac 11>,
+ <&admac 12>, <&admac 13>, <&admac 14>, <&admac 15>;
+ dma-names = "tx0a", "rx0a", "tx0b", "rx0b",
+ "tx1a", "rx1a", "tx1b", "rx1b",
+ "tx2a", "rx2a", "tx2b", "rx2b",
+ "tx3a", "rx3a", "tx3b", "rx3b";
+
+ #sound-dai-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml b/Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml
new file mode 100644
index 000000000000..43d04702ac2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel,sama5d2-classd.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/atmel,sama5d2-classd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel ClassD Amplifier
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+ The Audio Class D Amplifier (CLASSD) is a digital input, Pulse Width
+ Modulated (PWM) output stereo Class D amplifier.
+
+properties:
+ compatible:
+ const: atmel,sama5d2-classd
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ const: tx
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: gclk
+
+ atmel,model:
+ $ref: /schemas/types.yaml#/definitions/string
+ default: CLASSD
+ description: The user-visible name of this sound complex.
+
+ atmel,pwm-type:
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - single
+ - diff
+ default: single
+ description: PWM modulation type.
+
+ atmel,non-overlap-time:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum:
+ - 5
+ - 10
+ - 15
+ - 20
+ default: 10
+ description:
+ Set non-overlapping time, the unit is nanosecond(ns).
+ Non-overlapping will be disabled if not specified.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clock-names
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/dma/at91.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ classd: sound@fc048000 {
+ compatible = "atmel,sama5d2-classd";
+ reg = <0xfc048000 0x100>;
+ interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(47))>;
+ dma-names = "tx";
+ clocks = <&classd_clk>, <&classd_gclk>;
+ clock-names = "pclk", "gclk";
+ assigned-clocks = <&classd_gclk>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_classd_default>;
+ atmel,model = "classd @ SAMA5D2-Xplained";
+ atmel,pwm-type = "diff";
+ atmel,non-overlap-time = <10>;
+ };
diff --git a/Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml b/Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml
new file mode 100644
index 000000000000..0cd1ff89baed
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel,sama5d2-i2s.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/atmel,sama5d2-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel I2S controller
+
+maintainers:
+ - Nicolas Ferre <nicolas.ferre@microchip.com>
+ - Alexandre Belloni <alexandre.belloni@bootlin.com>
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+ Atmel I2S (Inter-IC Sound Controller) bus is the standard
+ interface for connecting audio devices, such as audio codecs.
+
+properties:
+ compatible:
+ const: atmel,sama5d2-i2s
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Peripheral clock
+ - description: Generated clock (Optional)
+ - description: I2S mux clock (Optional). Set
+ with gclk when Master Mode is required.
+ minItems: 1
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: gclk
+ - const: muxclk
+ minItems: 1
+
+ dmas:
+ items:
+ - description: TX DMA Channel
+ - description: RX DMA Channel
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/dma/at91.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ i2s@f8050000 {
+ compatible = "atmel,sama5d2-i2s";
+ reg = <0xf8050000 0x300>;
+ interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+ AT91_XDMAC_DT_PERID(31))>,
+ <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+ AT91_XDMAC_DT_PERID(32))>;
+ dma-names = "tx", "rx";
+ clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>;
+ clock-names = "pclk", "gclk", "muxclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2s0_default>;
+ };
diff --git a/Documentation/devicetree/bindings/sound/atmel,sama5d2-pdmic.yaml b/Documentation/devicetree/bindings/sound/atmel,sama5d2-pdmic.yaml
new file mode 100644
index 000000000000..f320b561f24c
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/atmel,sama5d2-pdmic.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/atmel,sama5d2-pdmic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel PDMIC decoder
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@microchip.com>
+
+description:
+ Atmel Pulse Density Modulation Interface Controller
+ (PDMIC) peripheral is a mono PDM decoder module
+ that decodes an incoming PDM sample stream.
+
+properties:
+ compatible:
+ const: atmel,sama5d2-pdmic
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: peripheral clock
+ - description: generated clock
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: gclk
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ const: rx
+
+ atmel,mic-min-freq:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The minimal frequency that the microphone supports.
+
+ atmel,mic-max-freq:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ The maximal frequency that the microphone supports.
+
+ atmel,model:
+ $ref: /schemas/types.yaml#/definitions/string
+ default: PDMIC
+ description: The user-visible name of this sound card.
+
+ atmel,mic-offset:
+ $ref: /schemas/types.yaml#/definitions/int32
+ default: 0
+ description: The offset that should be added.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clock-names
+ - clocks
+ - atmel,mic-min-freq
+ - atmel,mic-max-freq
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/dma/at91.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pdmic: sound@f8018000 {
+ compatible = "atmel,sama5d2-pdmic";
+ reg = <0xf8018000 0x124>;
+ interrupts = <48 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
+ | AT91_XDMAC_DT_PERID(50))>;
+ dma-names = "rx";
+ clocks = <&pdmic_clk>, <&pdmic_gclk>;
+ clock-names = "pclk", "gclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pdmic_default>;
+ atmel,model = "PDMIC@sama5d2_xplained";
+ atmel,mic-min-freq = <1000000>;
+ atmel,mic-max-freq = <3246000>;
+ atmel,mic-offset = <0x0>;
+ };
diff --git a/Documentation/devicetree/bindings/sound/atmel-classd.txt b/Documentation/devicetree/bindings/sound/atmel-classd.txt
deleted file mode 100644
index 898551076382..000000000000
--- a/Documentation/devicetree/bindings/sound/atmel-classd.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-* Atmel ClassD driver under ALSA SoC architecture
-
-Required properties:
-- compatible
- Should be "atmel,sama5d2-classd".
-- reg
- Should contain ClassD registers location and length.
-- interrupts
- Should contain the IRQ line for the ClassD.
-- dmas
- One DMA specifiers as described in atmel-dma.txt and dma.txt files.
-- dma-names
- Must be "tx".
-- clock-names
- Tuple listing input clock names.
- Required elements: "pclk" and "gclk".
-- clocks
- Please refer to clock-bindings.txt.
-- assigned-clocks
- Should be <&classd_gclk>.
-
-Optional properties:
-- pinctrl-names, pinctrl-0
- Please refer to pinctrl-bindings.txt.
-- atmel,model
- The user-visible name of this sound complex.
- The default value is "CLASSD".
-- atmel,pwm-type
- PWM modulation type, "single" or "diff".
- The default value is "single".
-- atmel,non-overlap-time
- Set non-overlapping time, the unit is nanosecond(ns).
- There are four values,
- <5>, <10>, <15>, <20>, the default value is <10>.
- Non-overlapping will be disabled if not specified.
-
-Example:
-classd: classd@fc048000 {
- compatible = "atmel,sama5d2-classd";
- reg = <0xfc048000 0x100>;
- interrupts = <59 IRQ_TYPE_LEVEL_HIGH 7>;
- dmas = <&dma0
- (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
- | AT91_XDMAC_DT_PERID(47))>;
- dma-names = "tx";
- clocks = <&classd_clk>, <&classd_gclk>;
- clock-names = "pclk", "gclk";
- assigned-clocks = <&classd_gclk>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_classd_default>;
- atmel,model = "classd @ SAMA5D2-Xplained";
- atmel,pwm-type = "diff";
- atmel,non-overlap-time = <10>;
-};
diff --git a/Documentation/devicetree/bindings/sound/atmel-i2s.txt b/Documentation/devicetree/bindings/sound/atmel-i2s.txt
deleted file mode 100644
index 40549f496a81..000000000000
--- a/Documentation/devicetree/bindings/sound/atmel-i2s.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-* Atmel I2S controller
-
-Required properties:
-- compatible: Should be "atmel,sama5d2-i2s".
-- reg: Should be the physical base address of the controller and the
- length of memory mapped region.
-- interrupts: Should contain the interrupt for the controller.
-- dmas: Should be one per channel name listed in the dma-names property,
- as described in atmel-dma.txt and dma.txt files.
-- dma-names: Two dmas have to be defined, "tx" and "rx".
- This IP also supports one shared channel for both rx and tx;
- if this mode is used, one "rx-tx" name must be used.
-- clocks: Must contain an entry for each entry in clock-names.
- Please refer to clock-bindings.txt.
-- clock-names: Should be one of each entry matching the clocks phandles list:
- - "pclk" (peripheral clock) Required.
- - "gclk" (generated clock) Optional (1).
- - "muxclk" (I2S mux clock) Optional (1).
-
-Optional properties:
-- pinctrl-0: Should specify pin control groups used for this controller.
-- princtrl-names: Should contain only one value - "default".
-
-
-(1) : Only the peripheral clock is required. The generated clock and the I2S
- mux clock are optional and should only be set together, when Master Mode
- is required.
-
-Example:
-
- i2s@f8050000 {
- compatible = "atmel,sama5d2-i2s";
- reg = <0xf8050000 0x300>;
- interrupts = <54 IRQ_TYPE_LEVEL_HIGH 7>;
- dmas = <&dma0
- (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
- AT91_XDMAC_DT_PERID(31))>,
- <&dma0
- (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
- AT91_XDMAC_DT_PERID(32))>;
- dma-names = "tx", "rx";
- clocks = <&i2s0_clk>, <&i2s0_gclk>, <&i2s0muxck>;
- clock-names = "pclk", "gclk", "muxclk";
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_i2s0_default>;
- };
diff --git a/Documentation/devicetree/bindings/sound/atmel-pdmic.txt b/Documentation/devicetree/bindings/sound/atmel-pdmic.txt
deleted file mode 100644
index e0875f17c229..000000000000
--- a/Documentation/devicetree/bindings/sound/atmel-pdmic.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-* Atmel PDMIC driver under ALSA SoC architecture
-
-Required properties:
-- compatible
- Should be "atmel,sama5d2-pdmic".
-- reg
- Should contain PDMIC registers location and length.
-- interrupts
- Should contain the IRQ line for the PDMIC.
-- dmas
- One DMA specifiers as described in atmel-dma.txt and dma.txt files.
-- dma-names
- Must be "rx".
-- clock-names
- Required elements:
- - "pclk" peripheral clock
- - "gclk" generated clock
-- clocks
- Must contain an entry for each required entry in clock-names.
- Please refer to clock-bindings.txt.
-- atmel,mic-min-freq
- The minimal frequency that the micphone supports.
-- atmel,mic-max-freq
- The maximal frequency that the micphone supports.
-
-Optional properties:
-- pinctrl-names, pinctrl-0
- Please refer to pinctrl-bindings.txt.
-- atmel,model
- The user-visible name of this sound card.
- The default value is "PDMIC".
-- atmel,mic-offset
- The offset that should be added.
- The range is from -32768 to 32767.
- The default value is 0.
-
-Example:
- pdmic@f8018000 {
- compatible = "atmel,sama5d2-pdmic";
- reg = <0xf8018000 0x124>;
- interrupts = <48 IRQ_TYPE_LEVEL_HIGH 7>;
- dmas = <&dma0
- (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1)
- | AT91_XDMAC_DT_PERID(50))>;
- dma-names = "rx";
- clocks = <&pdmic_clk>, <&pdmic_gclk>;
- clock-names = "pclk", "gclk";
-
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_pdmic_default>;
- atmel,model = "PDMIC @ sama5d2_xplained";
- atmel,mic-min-freq = <1000000>;
- atmel,mic-max-freq = <3246000>;
- atmel,mic-offset = <0x0>;
- };
diff --git a/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt b/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt
index 0720857089a7..8facbce53db8 100644
--- a/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt
+++ b/Documentation/devicetree/bindings/sound/atmel-sam9x5-wm8731-audio.txt
@@ -16,7 +16,7 @@ Board connectors:
* Line In Jack
wm8731 pins:
-cf Documentation/devicetree/bindings/sound/wm8731.txt
+cf Documentation/devicetree/bindings/sound/wlf,wm8731.yaml
Example:
sound {
diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card.yaml b/Documentation/devicetree/bindings/sound/audio-graph-card.yaml
index 109e55f9e597..274092ef36c5 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-card.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-card.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/audio-graph-card.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Audio Graph Card Device Tree Bindings
+title: Audio Graph Card
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml b/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml
index 7416067c945e..3de7b36829da 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-card2.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/audio-graph-card2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Audio Graph Card2 Device Tree Bindings
+title: Audio Graph Card2
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
diff --git a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
index 5c368674d11a..64654ceef208 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
@@ -19,14 +19,17 @@ properties:
description: "device name prefix"
$ref: /schemas/types.yaml#/definitions/string
convert-rate:
- description: CPU to Codec rate convert.
- $ref: /schemas/types.yaml#/definitions/uint32
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
convert-channels:
- description: CPU to Codec rate channels.
- $ref: /schemas/types.yaml#/definitions/uint32
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
+ convert-sample-format:
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-format"
+
patternProperties:
"^endpoint(@[0-9a-f]+)?":
$ref: /schemas/graph.yaml#/$defs/endpoint-base
+ unevaluatedProperties: false
+
properties:
mclk-fs:
description: |
@@ -65,12 +68,18 @@ patternProperties:
- msb
- lsb
convert-rate:
- description: CPU to Codec rate convert.
- $ref: /schemas/types.yaml#/definitions/uint32
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
convert-channels:
- description: CPU to Codec rate channels.
- $ref: /schemas/types.yaml#/definitions/uint32
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
+ convert-sample-format:
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-format"
+ dai-tdm-slot-num:
+ description: Number of slots in use.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ dai-tdm-slot-width:
+ description: Width in bits for each slot.
+ $ref: /schemas/types.yaml#/definitions/uint32
dai-tdm-slot-width-map:
description: Mapping of sample widths to slot widths. For hardware
that cannot support a fixed slot width or a slot width always
diff --git a/Documentation/devicetree/bindings/sound/audio-graph.yaml b/Documentation/devicetree/bindings/sound/audio-graph.yaml
index 4b46794e5153..d59baedee180 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/audio-graph.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Audio Graph Device Tree Bindings
+title: Audio Graph
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
@@ -27,11 +27,12 @@ properties:
description: User specified audio sound widgets.
$ref: /schemas/types.yaml#/definitions/non-unique-string-array
convert-rate:
- description: CPU to Codec rate convert.
- $ref: /schemas/types.yaml#/definitions/uint32
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
convert-channels:
- description: CPU to Codec rate channels.
- $ref: /schemas/types.yaml#/definitions/uint32
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
+ convert-sample-format:
+ $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-format"
+
pa-gpios:
maxItems: 1
hp-det-gpio:
diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs42l42.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs42l42.yaml
index 31800f70e9d9..7356084a2ca2 100644
--- a/Documentation/devicetree/bindings/sound/cirrus,cs42l42.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs42l42.yaml
@@ -19,6 +19,7 @@ properties:
compatible:
enum:
- cirrus,cs42l42
+ - cirrus,cs42l83
reg:
description:
diff --git a/Documentation/devicetree/bindings/sound/da9055.txt b/Documentation/devicetree/bindings/sound/da9055.txt
index ed1b7cc6f249..75c6338b6ae2 100644
--- a/Documentation/devicetree/bindings/sound/da9055.txt
+++ b/Documentation/devicetree/bindings/sound/da9055.txt
@@ -2,7 +2,7 @@
DA9055 provides Audio CODEC support (I2C only).
-The Audio CODEC device in DA9055 has it's own I2C address which is configurable,
+The Audio CODEC device in DA9055 has its own I2C address which is configurable,
so the device is instantiated separately from the PMIC (MFD) device.
For details on accompanying PMIC I2C device, see the following:
diff --git a/Documentation/devicetree/bindings/sound/dai-params.yaml b/Documentation/devicetree/bindings/sound/dai-params.yaml
new file mode 100644
index 000000000000..f5fb71f9b603
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/dai-params.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/dai-params.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Digital Audio Interface (DAI) Stream Parameters
+
+maintainers:
+ - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+select: false
+
+$defs:
+
+ dai-channels:
+ description: Number of audio channels used by DAI
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 32
+
+ dai-sample-format:
+ description: Audio sample format used by DAI
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - s8
+ - s16_le
+ - s24_le
+ - s24_3le
+ - s32_le
+
+ dai-sample-rate:
+ description: Audio sample rate used by DAI
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 8000
+ maximum: 192000
+
+properties: {}
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/sound/designware-i2s.txt b/Documentation/devicetree/bindings/sound/designware-i2s.txt
deleted file mode 100644
index 6a536d570e29..000000000000
--- a/Documentation/devicetree/bindings/sound/designware-i2s.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-DesignWare I2S controller
-
-Required properties:
- - compatible : Must be "snps,designware-i2s"
- - reg : Must contain the I2S core's registers location and length
- - clocks : Pairs of phandle and specifier referencing the controller's
- clocks. The controller expects one clock: the clock used as the sampling
- rate reference clock sample.
- - clock-names : "i2sclk" for the sample rate reference clock.
- - dmas: Pairs of phandle and specifier for the DMA channels that are used by
- the core. The core expects one or two dma channels: one for transmit and
- one for receive.
- - dma-names : "tx" for the transmit channel, "rx" for the receive channel.
-
-Optional properties:
- - interrupts: The interrupt line number for the I2S controller. Add this
- parameter if the I2S controller that you are using does not support DMA.
-
-For more details on the 'dma', 'dma-names', 'clock' and 'clock-names'
-properties please check:
- * resource-names.txt
- * clock/clock-bindings.txt
- * dma/dma.txt
-
-Example:
-
- soc_i2s: i2s@7ff90000 {
- compatible = "snps,designware-i2s";
- reg = <0x0 0x7ff90000 0x0 0x1000>;
- clocks = <&scpi_i2sclk 0>;
- clock-names = "i2sclk";
- #sound-dai-cells = <0>;
- dmas = <&dma0 5>;
- dma-names = "tx";
- };
diff --git a/Documentation/devicetree/bindings/sound/everest,es8326.yaml b/Documentation/devicetree/bindings/sound/everest,es8326.yaml
new file mode 100755
index 000000000000..07781408e788
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/everest,es8326.yaml
@@ -0,0 +1,116 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/everest,es8326.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Everest ES8326 audio CODEC
+
+maintainers:
+ - David Yang <yangxiaohua@everest-semi.com>
+
+properties:
+ compatible:
+ const: everest,es8326
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: clock for master clock (MCLK)
+
+ clock-names:
+ items:
+ - const: mclk
+
+ "#sound-dai-cells":
+ const: 0
+
+ everest,jack-pol:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ just the value of reg 57. Bit(3) decides whether the jack polarity is inverted.
+ Bit(2) decides whether the button on the headset is inverted.
+ Bit(1)/(0) decides the mic properity to be OMTP/CTIA or auto.
+ minimum: 0x00
+ maximum: 0x0f
+ default: 0x0f
+
+ everest,mic1-src:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description:
+ the value of reg 2A when headset plugged.
+ minimum: 0x00
+ maximum: 0x77
+ default: 0x22
+
+ everest,mic2-src:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description:
+ the value of reg 2A when headset unplugged.
+ minimum: 0x00
+ maximum: 0x77
+ default: 0x44
+
+ everest,jack-detect-inverted:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Defined to invert the jack detection.
+
+ everest,interrupt-src:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ value of reg 0x58, Defines the interrupt source.
+ Bit(2) 1 means button press triggers irq, 0 means not.
+ Bit(3) 1 means PIN9 is the irq source for jack detection. When set to 0,
+ bias change on PIN9 do not triggers irq.
+ Bit(4) 1 means PIN27 is the irq source for jack detection.
+ Bit(5) 1 means PIN9 is the irq source after MIC detect.
+ Bit(6) 1 means PIN27 is the irq source after MIC detect.
+ minimum: 0
+ maximum: 0x3c
+ default: 0x08
+
+ everest,interrupt-clk:
+ $ref: /schemas/types.yaml#/definitions/uint8
+ description: |
+ value of reg 0x59, Defines the interrupt output behavior.
+ Bit(0-3) 0 means irq pulse equals 512*internal clock
+ 1 means irq pulse equals 1024*internal clock
+ 2 means ...
+ 7 means irq pulse equals 65536*internal clock
+ 8 means irq mutes PA
+ 9 means irq mutes PA and DAC output
+ Bit(4) 1 means we invert the interrupt output.
+ Bit(6) 1 means the chip do not detect jack type after button released.
+ 0 means the chip detect jack type again after button released.
+ minimum: 0
+ maximum: 0x7f
+ default: 0x45
+
+required:
+ - compatible
+ - reg
+ - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ es8326: codec@19 {
+ compatible = "everest,es8326";
+ reg = <0x19>;
+ clocks = <&clks 10>;
+ clock-names = "mclk";
+ #sound-dai-cells = <0>;
+ everest,mic1-src = [22];
+ everest,mic2-src = [44];
+ everest,jack-pol = [0e];
+ everest,interrupt-src = [08];
+ everest,interrupt-clk = [45];
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.txt b/Documentation/devicetree/bindings/sound/fsl,micfil.txt
deleted file mode 100644
index 1ea05d4996c7..000000000000
--- a/Documentation/devicetree/bindings/sound/fsl,micfil.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-NXP MICFIL Digital Audio Interface (MICFIL).
-
-The MICFIL digital interface provides a 16-bit audio signal from a PDM
-microphone bitstream in a configurable output sampling rate.
-
-Required properties:
-
- - compatible : Compatible list, contains "fsl,imx8mm-micfil"
- or "fsl,imx8mp-micfil"
-
- - reg : Offset and length of the register set for the device.
-
- - interrupts : Contains the micfil interrupts.
-
- - clocks : Must contain an entry for each entry in clock-names.
-
- - clock-names : Must include the "ipg_clk" for register access and
- "ipg_clk_app" for internal micfil clock.
-
- - dmas : Generic dma devicetree binding as described in
- Documentation/devicetree/bindings/dma/dma.txt.
-
-Example:
-micfil: micfil@30080000 {
- compatible = "fsl,imx8mm-micfil";
- reg = <0x0 0x30080000 0x0 0x10000>;
- interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk IMX8MM_CLK_PDM_IPG>,
- <&clk IMX8MM_CLK_PDM_ROOT>;
- clock-names = "ipg_clk", "ipg_clk_app";
- dmas = <&sdma2 24 26 0x80000000>;
-};
diff --git a/Documentation/devicetree/bindings/sound/fsl,micfil.yaml b/Documentation/devicetree/bindings/sound/fsl,micfil.yaml
new file mode 100644
index 000000000000..64d57758ee67
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,micfil.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,micfil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP MICFIL Digital Audio Interface (MICFIL)
+
+maintainers:
+ - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+description: |
+ The MICFIL digital interface provides a 16-bit or 24-bit audio signal
+ from a PDM microphone bitstream in a configurable output sampling rate.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8mm-micfil
+ - fsl,imx8mp-micfil
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: Digital Microphone interface interrupt
+ - description: Digital Microphone interface error interrupt
+ - description: voice activity detector event interrupt
+ - description: voice activity detector error interrupt
+
+ dmas:
+ items:
+ - description: DMA controller phandle and request line for RX
+
+ dma-names:
+ items:
+ - const: rx
+
+ clocks:
+ items:
+ - description: The ipg clock for register access
+ - description: internal micfil clock
+ - description: PLL clock source for 8kHz series
+ - description: PLL clock source for 11kHz series
+ - description: External clock 3
+ minItems: 2
+
+ clock-names:
+ items:
+ - const: ipg_clk
+ - const: ipg_clk_app
+ - const: pll8k
+ - const: pll11k
+ - const: clkext3
+ minItems: 2
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/imx8mm-clock.h>
+ micfil: audio-controller@30080000 {
+ compatible = "fsl,imx8mm-micfil";
+ reg = <0x30080000 0x10000>;
+ interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MM_CLK_PDM_IPG>,
+ <&clk IMX8MM_CLK_PDM_ROOT>;
+ clock-names = "ipg_clk", "ipg_clk_app";
+ dmas = <&sdma2 24 25 0>;
+ dma-names = "rx";
+ };
diff --git a/Documentation/devicetree/bindings/sound/fsl,mqs.txt b/Documentation/devicetree/bindings/sound/fsl,mqs.txt
index 40353fc30255..d66284b8bef2 100644
--- a/Documentation/devicetree/bindings/sound/fsl,mqs.txt
+++ b/Documentation/devicetree/bindings/sound/fsl,mqs.txt
@@ -2,7 +2,7 @@ fsl,mqs audio CODEC
Required properties:
- compatible : Must contain one of "fsl,imx6sx-mqs", "fsl,codec-mqs"
- "fsl,imx8qm-mqs", "fsl,imx8qxp-mqs".
+ "fsl,imx8qm-mqs", "fsl,imx8qxp-mqs", "fsl,imx93-mqs".
- clocks : A list of phandles + clock-specifiers, one for each entry in
clock-names
- clock-names : "mclk" - must required.
diff --git a/Documentation/devicetree/bindings/sound/fsl,sai.yaml b/Documentation/devicetree/bindings/sound/fsl,sai.yaml
new file mode 100644
index 000000000000..70c4111d59c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,sai.yaml
@@ -0,0 +1,216 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,sai.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale Synchronous Audio Interface (SAI).
+
+maintainers:
+ - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+description: |
+ The SAI is based on I2S module that used communicating with audio codecs,
+ which provides a synchronous audio interface that supports fullduplex
+ serial interfaces with frame synchronization such as I2S, AC97, TDM, and
+ codec/DSP interfaces.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,vf610-sai
+ - fsl,imx6sx-sai
+ - fsl,imx6ul-sai
+ - fsl,imx7ulp-sai
+ - fsl,imx8mq-sai
+ - fsl,imx8qm-sai
+ - fsl,imx8ulp-sai
+ - items:
+ - enum:
+ - fsl,imx8mm-sai
+ - fsl,imx8mn-sai
+ - fsl,imx8mp-sai
+ - const: fsl,imx8mq-sai
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ items:
+ - description: receive and transmit interrupt
+
+ dmas:
+ maxItems: 2
+
+ dma-names:
+ maxItems: 2
+
+ clocks:
+ items:
+ - description: The ipg clock for register access
+ - description: master clock source 0 (obsoleted)
+ - description: master clock source 1
+ - description: master clock source 2
+ - description: master clock source 3
+ - description: PLL clock source for 8kHz series
+ - description: PLL clock source for 11kHz series
+ minItems: 4
+
+ clock-names:
+ oneOf:
+ - items:
+ - const: bus
+ - const: mclk0
+ - const: mclk1
+ - const: mclk2
+ - const: mclk3
+ - const: pll8k
+ - const: pll11k
+ minItems: 4
+ - items:
+ - const: bus
+ - const: mclk1
+ - const: mclk2
+ - const: mclk3
+ - const: pll8k
+ - const: pll11k
+ minItems: 4
+
+ lsb-first:
+ description: |
+ Configures whether the LSB or the MSB is transmitted
+ first for the fifo data. If this property is absent,
+ the MSB is transmitted first as default, or the LSB
+ is transmitted first.
+ type: boolean
+
+ big-endian:
+ description: |
+ required if all the SAI registers are big-endian rather than little-endian.
+ type: boolean
+
+ fsl,sai-synchronous-rx:
+ description: |
+ SAI will work in the synchronous mode (sync Tx with Rx) which means
+ both the transmitter and the receiver will send and receive data by
+ following receiver's bit clocks and frame sync clocks.
+ type: boolean
+
+ fsl,sai-asynchronous:
+ description: |
+ SAI will work in the asynchronous mode, which means both transmitter
+ and receiver will send and receive data by following their own bit clocks
+ and frame sync clocks separately.
+ If both fsl,sai-asynchronous and fsl,sai-synchronous-rx are absent, the
+ default synchronous mode (sync Rx with Tx) will be used, which means both
+ transmitter and receiver will send and receive data by following clocks
+ of transmitter.
+ type: boolean
+
+ fsl,dataline:
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ description: |
+ Configure the dataline. It has 3 value for each configuration
+ maxItems: 16
+ items:
+ items:
+ - description: format Default(0), I2S(1) or PDM(2)
+ enum: [0, 1, 2]
+ - description: dataline mask for 'rx'
+ - description: dataline mask for 'tx'
+
+ fsl,sai-mclk-direction-output:
+ description: SAI will output the SAI MCLK clock.
+ type: boolean
+
+ fsl,shared-interrupt:
+ description: Interrupt is shared with other modules.
+ type: boolean
+
+ "#sound-dai-cells":
+ const: 0
+ description: optional, some dts node didn't add it.
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: fsl,vf610-sai
+ then:
+ properties:
+ dmas:
+ items:
+ - description: DMA controller phandle and request line for TX
+ - description: DMA controller phandle and request line for RX
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+ else:
+ properties:
+ dmas:
+ items:
+ - description: DMA controller phandle and request line for RX
+ - description: DMA controller phandle and request line for TX
+ dma-names:
+ items:
+ - const: rx
+ - const: tx
+ - if:
+ required:
+ - fsl,sai-asynchronous
+ then:
+ properties:
+ fsl,sai-synchronous-rx: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - dmas
+ - dma-names
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/vf610-clock.h>
+ sai2: sai@40031000 {
+ compatible = "fsl,vf610-sai";
+ reg = <0x40031000 0x1000>;
+ interrupts = <86 IRQ_TYPE_LEVEL_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sai2_1>;
+ clocks = <&clks VF610_CLK_PLATFORM_BUS>,
+ <&clks VF610_CLK_SAI2>,
+ <&clks 0>, <&clks 0>;
+ clock-names = "bus", "mclk1", "mclk2", "mclk3";
+ dma-names = "tx", "rx";
+ dmas = <&edma0 0 21>,
+ <&edma0 0 20>;
+ big-endian;
+ lsb-first;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/imx8mm-clock.h>
+ sai1: sai@30010000 {
+ compatible = "fsl,imx8mm-sai", "fsl,imx8mq-sai";
+ reg = <0x30010000 0x10000>;
+ interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MM_CLK_SAI1_IPG>,
+ <&clk IMX8MM_CLK_DUMMY>,
+ <&clk IMX8MM_CLK_SAI1_ROOT>,
+ <&clk IMX8MM_CLK_DUMMY>, <&clk IMX8MM_CLK_DUMMY>;
+ clock-names = "bus", "mclk0", "mclk1", "mclk2", "mclk3";
+ dmas = <&sdma2 0 2 0>, <&sdma2 1 2 0>;
+ dma-names = "rx", "tx";
+ fsl,dataline = <1 0xff 0xff 2 0xff 0x11>;
+ #sound-dai-cells = <0>;
+ };
diff --git a/Documentation/devicetree/bindings/sound/fsl,spdif.yaml b/Documentation/devicetree/bindings/sound/fsl,spdif.yaml
index f226ec13167a..1d64e8337aa4 100644
--- a/Documentation/devicetree/bindings/sound/fsl,spdif.yaml
+++ b/Documentation/devicetree/bindings/sound/fsl,spdif.yaml
@@ -58,6 +58,8 @@ properties:
slave of the Shared Peripheral Bus and when two or more bus masters
(CPU, DMA or DSP) try to access it. This property is optional depending
on the SoC design.
+ - description: PLL clock source for 8kHz series rate, optional.
+ - description: PLL clock source for 11khz series rate, optional.
minItems: 9
clock-names:
@@ -72,6 +74,8 @@ properties:
- const: rxtx6
- const: rxtx7
- const: spba
+ - const: pll8k
+ - const: pll11k
minItems: 9
big-endian:
diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt
deleted file mode 100644
index c71c5861d787..000000000000
--- a/Documentation/devicetree/bindings/sound/fsl-sai.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-Freescale Synchronous Audio Interface (SAI).
-
-The SAI is based on I2S module that used communicating with audio codecs,
-which provides a synchronous audio interface that supports fullduplex
-serial interfaces with frame synchronization such as I2S, AC97, TDM, and
-codec/DSP interfaces.
-
-Required properties:
-
- - compatible : Compatible list, contains "fsl,vf610-sai",
- "fsl,imx6sx-sai", "fsl,imx6ul-sai",
- "fsl,imx7ulp-sai", "fsl,imx8mq-sai",
- "fsl,imx8qm-sai", "fsl,imx8mm-sai",
- "fsl,imx8mn-sai", "fsl,imx8mp-sai", or
- "fsl,imx8ulp-sai".
-
- - reg : Offset and length of the register set for the device.
-
- - clocks : Must contain an entry for each entry in clock-names.
-
- - clock-names : Must include the "bus" for register access and
- "mclk1", "mclk2", "mclk3" for bit clock and frame
- clock providing.
- - dmas : Generic dma devicetree binding as described in
- Documentation/devicetree/bindings/dma/dma.txt.
-
- - dma-names : Two dmas have to be defined, "tx" and "rx".
-
- - pinctrl-names : Must contain a "default" entry.
-
- - pinctrl-NNN : One property must exist for each entry in
- pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
- for details of the property values.
-
- - lsb-first : Configures whether the LSB or the MSB is transmitted
- first for the fifo data. If this property is absent,
- the MSB is transmitted first as default, or the LSB
- is transmitted first.
-
- - fsl,sai-synchronous-rx: This is a boolean property. If present, indicating
- that SAI will work in the synchronous mode (sync Tx
- with Rx) which means both the transmitter and the
- receiver will send and receive data by following
- receiver's bit clocks and frame sync clocks.
-
- - fsl,sai-asynchronous: This is a boolean property. If present, indicating
- that SAI will work in the asynchronous mode, which
- means both transmitter and receiver will send and
- receive data by following their own bit clocks and
- frame sync clocks separately.
-
-Optional properties:
-
- - big-endian : Boolean property, required if all the SAI
- registers are big-endian rather than little-endian.
-
-Optional properties (for mx6ul):
-
- - fsl,sai-mclk-direction-output: This is a boolean property. If present,
- indicates that SAI will output the SAI MCLK clock.
-
-Note:
-- If both fsl,sai-asynchronous and fsl,sai-synchronous-rx are absent, the
- default synchronous mode (sync Rx with Tx) will be used, which means both
- transmitter and receiver will send and receive data by following clocks
- of transmitter.
-- fsl,sai-asynchronous and fsl,sai-synchronous-rx are exclusive.
-
-Example:
-sai2: sai@40031000 {
- compatible = "fsl,vf610-sai";
- reg = <0x40031000 0x1000>;
- pinctrl-names = "default";
- pinctrl-0 = <&pinctrl_sai2_1>;
- clocks = <&clks VF610_CLK_PLATFORM_BUS>,
- <&clks VF610_CLK_SAI2>,
- <&clks 0>, <&clks 0>;
- clock-names = "bus", "mclk1", "mclk2", "mclk3";
- dma-names = "tx", "rx";
- dmas = <&edma0 0 VF610_EDMA_MUXID0_SAI2_TX>,
- <&edma0 0 VF610_EDMA_MUXID0_SAI2_RX>;
- big-endian;
- lsb-first;
-};
diff --git a/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml b/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
index 233caa0ade87..67ccddd44489 100644
--- a/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
+++ b/Documentation/devicetree/bindings/sound/google,sc7180-trogdor.yaml
@@ -61,6 +61,8 @@ patternProperties:
cpu:
description: Holds subnode which indicates cpu dai.
type: object
+ additionalProperties: false
+
properties:
sound-dai:
maxItems: 1
@@ -68,6 +70,8 @@ patternProperties:
codec:
description: Holds subnode which indicates codec dai.
type: object
+ additionalProperties: false
+
properties:
sound-dai:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
index bb3a435722c7..b6f5d486600e 100644
--- a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
+++ b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
@@ -58,6 +58,7 @@ patternProperties:
cpu:
description: Holds subnode which indicates cpu dai.
type: object
+ additionalProperties: false
properties:
sound-dai:
maxItems: 1
@@ -65,6 +66,7 @@ patternProperties:
codec:
description: Holds subnode which indicates codec dai.
type: object
+ additionalProperties: false
properties:
sound-dai:
minItems: 1
diff --git a/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml b/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml
index 803627e984f6..b2603f611af9 100644
--- a/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/intel,keembay-i2s.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/sound/intel,keembay-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Intel KeemBay I2S Device Tree Bindings
+title: Intel KeemBay I2S
maintainers:
- Sia, Jee Heng <jee.heng.sia@intel.com>
diff --git a/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml b/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml
index e3a1f485f664..b97e0fcbdba3 100644
--- a/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml
+++ b/Documentation/devicetree/bindings/sound/linux,bt-sco.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/linux,bt-sco.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Bluetooth SCO Audio Codec Device Tree Bindings
+title: Bluetooth SCO Audio Codec
maintainers:
- Mark Brown <broonie@kernel.org>
diff --git a/Documentation/devicetree/bindings/sound/linux,spdif-dit.yaml b/Documentation/devicetree/bindings/sound/linux,spdif-dit.yaml
index a4f9257e313d..808f6d2736c7 100644
--- a/Documentation/devicetree/bindings/sound/linux,spdif-dit.yaml
+++ b/Documentation/devicetree/bindings/sound/linux,spdif-dit.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/linux,spdif-dit.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Dummy SPDIF Transmitter Device Tree Bindings
+title: Dummy SPDIF Transmitter
maintainers:
- Mark Brown <broonie@kernel.org>
diff --git a/Documentation/devicetree/bindings/sound/mchp,spdifrx.yaml b/Documentation/devicetree/bindings/sound/mchp,spdifrx.yaml
index 970311143253..70a47c6823b1 100644
--- a/Documentation/devicetree/bindings/sound/mchp,spdifrx.yaml
+++ b/Documentation/devicetree/bindings/sound/mchp,spdifrx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/mchp,spdifrx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip S/PDIF Rx Controller Device Tree Bindings
+title: Microchip S/PDIF Rx Controller
maintainers:
- Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
diff --git a/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml b/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml
index d5c022e49526..d218e4ab9a7a 100644
--- a/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml
+++ b/Documentation/devicetree/bindings/sound/mchp,spdiftx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/mchp,spdiftx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip S/PDIF Tx Controller Device Tree Bindings
+title: Microchip S/PDIF Tx Controller
maintainers:
- Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
diff --git a/Documentation/devicetree/bindings/sound/mt6358.txt b/Documentation/devicetree/bindings/sound/mt6358.txt
index 59a73ffdf1d3..fbe9e55c68f5 100644
--- a/Documentation/devicetree/bindings/sound/mt6358.txt
+++ b/Documentation/devicetree/bindings/sound/mt6358.txt
@@ -7,7 +7,9 @@ Must be a child node of PMIC wrapper.
Required properties:
-- compatible : "mediatek,mt6358-sound".
+- compatible - "string" - One of:
+ "mediatek,mt6358-sound"
+ "mediatek,mt6366-sound"
- Avdd-supply : power source of AVDD
Optional properties:
diff --git a/Documentation/devicetree/bindings/sound/mt6359.yaml b/Documentation/devicetree/bindings/sound/mt6359.yaml
index a54f466f769d..23d411fc4200 100644
--- a/Documentation/devicetree/bindings/sound/mt6359.yaml
+++ b/Documentation/devicetree/bindings/sound/mt6359.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/mt6359.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek MT6359 Codec Device Tree Bindings
+title: Mediatek MT6359 Codec
maintainers:
- Eason Yen <eason.yen@mediatek.com>
diff --git a/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml b/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml
new file mode 100644
index 000000000000..88f82d096443
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mt8186-afe-pcm.yaml
@@ -0,0 +1,175 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mt8186-afe-pcm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek AFE PCM controller for mt8186
+
+maintainers:
+ - Jiaxin Yu <jiaxin.yu@mediatek.com>
+
+properties:
+ compatible:
+ const: mediatek,mt8186-sound
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: audiosys
+
+ mediatek,apmixedsys:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of the mediatek apmixedsys controller
+
+ mediatek,infracfg:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of the mediatek infracfg controller
+
+ mediatek,topckgen:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of the mediatek topckgen controller
+
+ clocks:
+ items:
+ - description: audio infra sys clock
+ - description: audio infra 26M clock
+ - description: audio top mux
+ - description: audio intbus mux
+ - description: mainpll 136.5M clock
+ - description: faud1 mux
+ - description: apll1 clock
+ - description: faud2 mux
+ - description: apll2 clock
+ - description: audio engen1 mux
+ - description: apll1_d8 22.5792M clock
+ - description: audio engen2 mux
+ - description: apll2_d8 24.576M clock
+ - description: i2s0 mclk mux
+ - description: i2s1 mclk mux
+ - description: i2s2 mclk mux
+ - description: i2s4 mclk mux
+ - description: tdm mclk mux
+ - description: i2s0_mck divider
+ - description: i2s1_mck divider
+ - description: i2s2_mck divider
+ - description: i2s4_mck divider
+ - description: tdm_mck divider
+ - description: audio hires mux
+ - description: 26M clock
+
+ clock-names:
+ items:
+ - const: aud_infra_clk
+ - const: mtkaif_26m_clk
+ - const: top_mux_audio
+ - const: top_mux_audio_int
+ - const: top_mainpll_d2_d4
+ - const: top_mux_aud_1
+ - const: top_apll1_ck
+ - const: top_mux_aud_2
+ - const: top_apll2_ck
+ - const: top_mux_aud_eng1
+ - const: top_apll1_d8
+ - const: top_mux_aud_eng2
+ - const: top_apll2_d8
+ - const: top_i2s0_m_sel
+ - const: top_i2s1_m_sel
+ - const: top_i2s2_m_sel
+ - const: top_i2s4_m_sel
+ - const: top_tdm_m_sel
+ - const: top_apll12_div0
+ - const: top_apll12_div1
+ - const: top_apll12_div2
+ - const: top_apll12_div4
+ - const: top_apll12_div_tdm
+ - const: top_mux_audio_h
+ - const: top_clk26m_clk
+
+required:
+ - compatible
+ - interrupts
+ - resets
+ - reset-names
+ - mediatek,apmixedsys
+ - mediatek,infracfg
+ - mediatek,topckgen
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ afe: mt8186-afe-pcm@11210000 {
+ compatible = "mediatek,mt8186-sound";
+ reg = <0x11210000 0x2000>;
+ interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&watchdog 17>; //MT8186_TOPRGU_AUDIO_SW_RST
+ reset-names = "audiosys";
+ mediatek,apmixedsys = <&apmixedsys>;
+ mediatek,infracfg = <&infracfg>;
+ mediatek,topckgen = <&topckgen>;
+ clocks = <&infracfg_ao 44>, //CLK_INFRA_AO_AUDIO
+ <&infracfg_ao 54>, //CLK_INFRA_AO_AUDIO_26M_BCLK
+ <&topckgen 15>, //CLK_TOP_AUDIO
+ <&topckgen 16>, //CLK_TOP_AUD_INTBUS
+ <&topckgen 70>, //CLK_TOP_MAINPLL_D2_D4
+ <&topckgen 17>, //CLK_TOP_AUD_1
+ <&apmixedsys 12>, //CLK_APMIXED_APLL1
+ <&topckgen 18>, //CLK_TOP_AUD_2
+ <&apmixedsys 13>, //CLK_APMIXED_APLL2
+ <&topckgen 19>, //CLK_TOP_AUD_ENGEN1
+ <&topckgen 101>, //CLK_TOP_APLL1_D8
+ <&topckgen 20>, //CLK_TOP_AUD_ENGEN2
+ <&topckgen 104>, //CLK_TOP_APLL2_D8
+ <&topckgen 63>, //CLK_TOP_APLL_I2S0_MCK_SEL
+ <&topckgen 64>, //CLK_TOP_APLL_I2S1_MCK_SEL
+ <&topckgen 65>, //CLK_TOP_APLL_I2S2_MCK_SEL
+ <&topckgen 66>, //CLK_TOP_APLL_I2S4_MCK_SEL
+ <&topckgen 67>, //CLK_TOP_APLL_TDMOUT_MCK_SEL
+ <&topckgen 131>, //CLK_TOP_APLL12_CK_DIV0
+ <&topckgen 132>, //CLK_TOP_APLL12_CK_DIV1
+ <&topckgen 133>, //CLK_TOP_APLL12_CK_DIV2
+ <&topckgen 134>, //CLK_TOP_APLL12_CK_DIV4
+ <&topckgen 135>, //CLK_TOP_APLL12_CK_DIV_TDMOUT_M
+ <&topckgen 44>, //CLK_TOP_AUDIO_H
+ <&clk26m>;
+ clock-names = "aud_infra_clk",
+ "mtkaif_26m_clk",
+ "top_mux_audio",
+ "top_mux_audio_int",
+ "top_mainpll_d2_d4",
+ "top_mux_aud_1",
+ "top_apll1_ck",
+ "top_mux_aud_2",
+ "top_apll2_ck",
+ "top_mux_aud_eng1",
+ "top_apll1_d8",
+ "top_mux_aud_eng2",
+ "top_apll2_d8",
+ "top_i2s0_m_sel",
+ "top_i2s1_m_sel",
+ "top_i2s2_m_sel",
+ "top_i2s4_m_sel",
+ "top_tdm_m_sel",
+ "top_apll12_div0",
+ "top_apll12_div1",
+ "top_apll12_div2",
+ "top_apll12_div4",
+ "top_apll12_div_tdm",
+ "top_mux_audio_h",
+ "top_clk26m_clk";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml b/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml
new file mode 100644
index 000000000000..d427f7f623db
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mt8186-mt6366-da7219-max98357.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT8186 with MT6366, DA7219 and MAX98357 ASoC sound card driver
+
+maintainers:
+ - Jiaxin Yu <jiaxin.yu@mediatek.com>
+
+description:
+ This binding describes the MT8186 sound card.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8186-mt6366-da7219-max98357-sound
+
+ mediatek,platform:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of MT8186 ASoC platform.
+
+ headset-codec:
+ type: object
+ additionalProperties: false
+ properties:
+ sound-dai:
+ maxItems: 1
+ required:
+ - sound-dai
+
+ playback-codecs:
+ type: object
+ additionalProperties: false
+ properties:
+ sound-dai:
+ items:
+ - description: phandle of dp codec
+ - description: phandle of l channel speaker codec
+ - description: phandle of r channel speaker codec
+ minItems: 2
+ required:
+ - sound-dai
+
+ mediatek,adsp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle of MT8186 ADSP platform.
+
+ mediatek,dai-link:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ A list of the desired dai-links in the sound card. Each entry is a
+ name defined in the machine driver.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - mediatek,platform
+ - headset-codec
+ - playback-codecs
+
+examples:
+ - |
+
+ sound: mt8186-sound {
+ compatible = "mediatek,mt8186-mt6366-da7219-max98357-sound";
+ mediatek,platform = <&afe>;
+ pinctrl-names = "aud_clk_mosi_off",
+ "aud_clk_mosi_on";
+ pinctrl-0 = <&aud_clk_mosi_off>;
+ pinctrl-1 = <&aud_clk_mosi_on>;
+
+ headset-codec {
+ sound-dai = <&da7219>;
+ };
+
+ playback-codecs {
+ sound-dai = <&anx_bridge_dp>,
+ <&max98357a>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
new file mode 100644
index 000000000000..4fc5b045d3cf
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/mt8186-mt6366-rt1019-rt5682s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT8186 with MT6366, RT1019 and RT5682S ASoC sound card driver
+
+maintainers:
+ - Jiaxin Yu <jiaxin.yu@mediatek.com>
+
+description:
+ This binding describes the MT8186 sound card.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt8186-mt6366-rt1019-rt5682s-sound
+
+ mediatek,platform:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of MT8186 ASoC platform.
+
+ headset-codec:
+ type: object
+ additionalProperties: false
+ properties:
+ sound-dai:
+ maxItems: 1
+ required:
+ - sound-dai
+
+ playback-codecs:
+ type: object
+ additionalProperties: false
+ properties:
+ sound-dai:
+ items:
+ - description: phandle of dp codec
+ - description: phandle of l channel speaker codec
+ - description: phandle of r channel speaker codec
+ minItems: 2
+ required:
+ - sound-dai
+
+ mediatek,adsp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: The phandle of MT8186 ADSP platform.
+
+ mediatek,dai-link:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ A list of the desired dai-links in the sound card. Each entry is a
+ name defined in the machine driver.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - mediatek,platform
+ - headset-codec
+ - playback-codecs
+
+examples:
+ - |
+
+ sound: mt8186-sound {
+ compatible = "mediatek,mt8186-mt6366-rt1019-rt5682s-sound";
+ mediatek,platform = <&afe>;
+ pinctrl-names = "aud_clk_mosi_off",
+ "aud_clk_mosi_on";
+ pinctrl-0 = <&aud_clk_mosi_off>;
+ pinctrl-1 = <&aud_clk_mosi_on>;
+
+ headset-codec {
+ sound-dai = <&rt5682s>;
+ };
+
+ playback-codecs {
+ sound-dai = <&it6505dptx>,
+ <&rt1019p>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml b/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
index 4fa179909c62..478be7e3fa29 100644
--- a/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
+++ b/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
@@ -30,6 +30,8 @@ properties:
headset-codec:
type: object
+ additionalProperties: false
+
properties:
sound-dai:
$ref: /schemas/types.yaml#/definitions/phandle
@@ -38,6 +40,8 @@ properties:
speaker-codecs:
type: object
+ additionalProperties: false
+
properties:
sound-dai:
minItems: 1
diff --git a/Documentation/devicetree/bindings/sound/nau8821.txt b/Documentation/devicetree/bindings/sound/nau8821.txt
index 6c3baf7a5f21..7c84e7c7327a 100644
--- a/Documentation/devicetree/bindings/sound/nau8821.txt
+++ b/Documentation/devicetree/bindings/sound/nau8821.txt
@@ -34,7 +34,7 @@ Optional properties:
- nuvoton,jack-eject-debounce: number from 0 to 7 that sets debounce time to 2^(n+2) ms
- nuvoton,dmic-clk-threshold: the ADC threshold of DMIC clock.
-
+ - nuvoton,key_enable: Headset button detection switch.
Example:
diff --git a/Documentation/devicetree/bindings/sound/nau8825.txt b/Documentation/devicetree/bindings/sound/nau8825.txt
index 388a7bc60b1f..cb861aca8d40 100644
--- a/Documentation/devicetree/bindings/sound/nau8825.txt
+++ b/Documentation/devicetree/bindings/sound/nau8825.txt
@@ -71,6 +71,9 @@ Optional properties:
- nuvoton,crosstalk-enable: make crosstalk function enable if set.
+ - nuvoton,adcout-drive-strong: make the drive strength of ADCOUT IO PIN strong if set.
+ Otherwise, the drive keeps normal strength.
+
- clocks: list of phandle and clock specifier pairs according to common clock bindings for the
clocks described in clock-names
- clock-names: should include "mclk" for the MCLK master clock
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra186-asrc.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra186-asrc.yaml
index 520d0d063d1a..d82415c21271 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra186-asrc.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra186-asrc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra186-asrc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra186 ASRC Device Tree Bindings
+title: Tegra186 ASRC
description: |
Asynchronous Sample Rate Converter (ASRC) converts the sampling frequency
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml
index 73b98b2f3543..3d538df878ea 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra186-dspk.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra186 DSPK Controller Device Tree Bindings
+title: Tegra186 DSPK Controller
description: |
The Digital Speaker Controller (DSPK) can be viewed as a Pulse
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml
index 372043edd98f..15ab40aeab1e 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-admaif.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 ADMAIF Device Tree Bindings
+title: Tegra210 ADMAIF
description: |
ADMAIF is the interface between ADMA and AHUB. Each ADMA channel
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-adx.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-adx.yaml
index 8d8dc7fb3f0c..ea0dc0ece1bc 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-adx.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-adx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-adx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 ADX Device Tree Bindings
+title: Tegra210 ADX
description: |
The Audio Demultiplexer (ADX) block takes an input stream with up to
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml
index 6df6f858038c..89f7805de274 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-ahub.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 AHUB Device Tree Bindings
+title: Tegra210 AHUB
description: |
The Audio Hub (AHUB) comprises a collection of hardware accelerators
@@ -110,6 +110,10 @@ patternProperties:
type: object
$ref: nvidia,tegra186-asrc.yaml#
+ '^processing-engine@[0-9a-f]+$':
+ type: object
+ $ref: nvidia,tegra210-ope.yaml#
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml
index f9e4fc6e0c47..1aff61f072bb 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-amx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 AMX Device Tree Bindings
+title: Tegra210 AMX
description: |
The Audio Multiplexer (AMX) block can multiplex up to four input streams
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml
index bcb496d3ace5..0f9d2b461e02 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-dmic.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 DMIC Controller Device Tree Bindings
+title: Tegra210 DMIC Controller
description: |
The Digital MIC (DMIC) Controller is used to interface with Pulse
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml
index 6188f561f878..12cd17eede99 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 I2S Controller Device Tree Bindings
+title: Tegra210 I2S Controller
description: |
The Inter-IC Sound (I2S) controller implements full-duplex,
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-mbdrc.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mbdrc.yaml
new file mode 100644
index 000000000000..5b9198602fc6
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mbdrc.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra210-mbdrc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tegra210 MBDRC
+
+description:
+ The Multi Band Dynamic Range Compressor (MBDRC) is part of Output
+ Processing Engine (OPE) which interfaces with Audio Hub (AHUB) via
+ Audio Client Interface (ACIF). MBDRC can be used as a traditional
+ single full band or a dual band or a multi band dynamic processor.
+
+maintainers:
+ - Jon Hunter <jonathanh@nvidia.com>
+ - Mohan Kumar <mkumard@nvidia.com>
+ - Sameer Pujar <spujar@nvidia.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: nvidia,tegra210-mbdrc
+ - items:
+ - enum:
+ - nvidia,tegra234-mbdrc
+ - nvidia,tegra194-mbdrc
+ - nvidia,tegra186-mbdrc
+ - const: nvidia,tegra210-mbdrc
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ dynamic-range-compressor@702d8200 {
+ compatible = "nvidia,tegra210-mbdrc";
+ reg = <0x702d8200 0x200>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-mixer.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mixer.yaml
index ee1e1d2da79a..570b03282aeb 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-mixer.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mixer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-mixer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 Mixer Device Tree Bindings
+title: Tegra210 Mixer
description: |
The Mixer supports mixing of up to ten 7.1 audio input streams and
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml
index c9888c553e78..4aecbc847b98 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-mvc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 MVC Device Tree Bindings
+title: Tegra210 MVC
description: |
The Master Volume Control (MVC) provides gain or attenuation to a digital
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-ope.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-ope.yaml
new file mode 100644
index 000000000000..9dc9ba590fa3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-ope.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra210-ope.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tegra210 OPE
+
+description:
+ The Output Processing Engine (OPE) is one of the AHUB client. It has
+ PEQ (Parametric Equalizer) and MBDRC (Multi Band Dynamic Range Compressor)
+ sub blocks for data processing.
+
+maintainers:
+ - Jon Hunter <jonathanh@nvidia.com>
+ - Mohan Kumar <mkumard@nvidia.com>
+ - Sameer Pujar <spujar@nvidia.com>
+
+allOf:
+ - $ref: name-prefix.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: nvidia,tegra210-ope
+ - items:
+ - enum:
+ - nvidia,tegra234-ope
+ - nvidia,tegra194-ope
+ - nvidia,tegra186-ope
+ - const: nvidia,tegra210-ope
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+ sound-name-prefix:
+ pattern: "^OPE[1-9]$"
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ properties:
+ port@0:
+ $ref: audio-graph-port.yaml#
+ unevaluatedProperties: false
+ description:
+ OPE ACIF (Audio Client Interface) input port. This is connected
+ to corresponding ACIF output port on AHUB (Audio Hub).
+
+ port@1:
+ $ref: audio-graph-port.yaml#
+ unevaluatedProperties: false
+ description:
+ OPE ACIF output port. This is connected to corresponding ACIF
+ input port on AHUB.
+
+patternProperties:
+ '^equalizer@[0-9a-f]+$':
+ type: object
+ $ref: nvidia,tegra210-peq.yaml#
+
+ '^dynamic-range-compressor@[0-9a-f]+$':
+ type: object
+ $ref: nvidia,tegra210-mbdrc.yaml#
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ processing-engine@702d8000 {
+ compatible = "nvidia,tegra210-ope";
+ reg = <0x702d8000 0x100>;
+ sound-name-prefix = "OPE1";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-peq.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-peq.yaml
new file mode 100644
index 000000000000..1e373c49d639
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-peq.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra210-peq.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tegra210 PEQ
+
+description:
+ The Parametric Equalizer (PEQ) is a cascade of biquad filters with
+ each filter tuned based on certain parameters. It can be used to
+ equalize the irregularities in the speaker frequency response.
+ PEQ sits inside Output Processing Engine (OPE) which interfaces
+ with Audio Hub (AHUB) via Audio Client Interface (ACIF).
+
+maintainers:
+ - Jon Hunter <jonathanh@nvidia.com>
+ - Mohan Kumar <mkumard@nvidia.com>
+ - Sameer Pujar <spujar@nvidia.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: nvidia,tegra210-peq
+ - items:
+ - enum:
+ - nvidia,tegra234-peq
+ - nvidia,tegra194-peq
+ - nvidia,tegra186-peq
+ - const: nvidia,tegra210-peq
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ equalizer@702d8100 {
+ compatible = "nvidia,tegra210-peq";
+ reg = <0x702d8100 0x100>;
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-sfc.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-sfc.yaml
index 8579306fc56f..694f890d6305 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra210-sfc.yaml
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-sfc.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/nvidia,tegra210-sfc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Tegra210 SFC Device Tree Bindings
+title: Tegra210 SFC
description: |
The Sampling Frequency Converter (SFC) converts the sampling frequency
diff --git a/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml b/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
index b9b1dba40856..7f2e68ff6d34 100644
--- a/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
+++ b/Documentation/devicetree/bindings/sound/nxp,tfa989x.yaml
@@ -15,6 +15,7 @@ allOf:
properties:
compatible:
enum:
+ - nxp,tfa9890
- nxp,tfa9895
- nxp,tfa9897
diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-rx-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-rx-macro.yaml
index a6905bcf89d2..1de11e7f33bb 100644
--- a/Documentation/devicetree/bindings/sound/qcom,lpass-rx-macro.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-rx-macro.yaml
@@ -14,6 +14,8 @@ properties:
enum:
- qcom,sc7280-lpass-rx-macro
- qcom,sm8250-lpass-rx-macro
+ - qcom,sm8450-lpass-rx-macro
+ - qcom,sc8280xp-lpass-rx-macro
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-tx-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-tx-macro.yaml
index 324595a62ae8..de8297b358e8 100644
--- a/Documentation/devicetree/bindings/sound/qcom,lpass-tx-macro.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-tx-macro.yaml
@@ -14,6 +14,8 @@ properties:
enum:
- qcom,sc7280-lpass-tx-macro
- qcom,sm8250-lpass-tx-macro
+ - qcom,sm8450-lpass-tx-macro
+ - qcom,sc8280xp-lpass-tx-macro
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
index 7b4cc84eda8c..9f473c08cb2e 100644
--- a/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-va-macro.yaml
@@ -14,6 +14,8 @@ properties:
enum:
- qcom,sc7280-lpass-va-macro
- qcom,sm8250-lpass-va-macro
+ - qcom,sm8450-lpass-va-macro
+ - qcom,sc8280xp-lpass-va-macro
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml b/Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml
index 13cdb8a10687..4959ad658eac 100644
--- a/Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,lpass-wsa-macro.yaml
@@ -14,6 +14,8 @@ properties:
enum:
- qcom,sc7280-lpass-wsa-macro
- qcom,sm8250-lpass-wsa-macro
+ - qcom,sm8450-lpass-wsa-macro
+ - qcom,sc8280xp-lpass-wsa-macro
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6adm-routing.yaml b/Documentation/devicetree/bindings/sound/qcom,q6adm-routing.yaml
new file mode 100644
index 000000000000..d0f7a79e240a
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,q6adm-routing.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,q6adm-routing.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Audio Device Manager (Q6ADM) routing
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description:
+ Qualcomm Audio Device Manager (Q6ADM) routing node represents routing
+ specific configuration.
+
+properties:
+ compatible:
+ enum:
+ - qcom,q6adm-routing
+
+ "#sound-dai-cells":
+ const: 0
+
+required:
+ - compatible
+ - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/soc/qcom,apr.h>
+ #include <dt-bindings/sound/qcom,q6asm.h>
+
+ apr {
+ compatible = "qcom,apr-v2";
+ qcom,domain = <APR_DOMAIN_ADSP>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ service@8 {
+ compatible = "qcom,q6adm";
+ reg = <APR_SVC_ADM>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+
+ routing {
+ compatible = "qcom,q6adm-routing";
+ #sound-dai-cells = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6adm.txt b/Documentation/devicetree/bindings/sound/qcom,q6adm.txt
deleted file mode 100644
index 15c353a20de8..000000000000
--- a/Documentation/devicetree/bindings/sound/qcom,q6adm.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-Qualcomm Audio Device Manager (Q6ADM) binding
-
-Q6ADM is one of the APR audio service on Q6DSP.
-Please refer to qcom,apr.txt for details of the coommon apr service bindings
-used by the apr service device.
-
-- but must contain the following property:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,q6adm-v<MAJOR-NUMBER>.<MINOR-NUMBER>".
- Or "qcom,q6adm" where the version number can be queried
- from DSP.
- example "qcom,q6adm-v2.0"
-
-
-= ADM routing
-"routing" subnode of the ADM node represents adm routing specific configuration
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,q6adm-routing".
-
-- #sound-dai-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 0
-
-= EXAMPLE
-apr-service@8 {
- compatible = "qcom,q6adm";
- reg = <APR_SVC_ADM>;
- q6routing: routing {
- compatible = "qcom,q6adm-routing";
- #sound-dai-cells = <0>;
- };
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
deleted file mode 100644
index bc6b5f1fe4f1..000000000000
--- a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-Qualcomm Audio Front End (Q6AFE) binding
-
-AFE is one of the APR audio service on Q6DSP
-Please refer to qcom,apr.txt for details of the common apr service bindings
-used by all apr services. Must contain the following properties.
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,q6afe-v<MAJOR-NUMBER>.<MINOR-NUMBER>"
- Or "qcom,q6afe" where the version number can be queried
- from DSP.
- example "qcom,q6afe"
-
-= EXAMPLE
-
-apr-service@4 {
- compatible = "qcom,q6afe";
- reg = <APR_SVC_AFE>;
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6apm-dai.yaml b/Documentation/devicetree/bindings/sound/qcom,q6apm-dai.yaml
index 5d972784321d..24f7bf2bfd95 100644
--- a/Documentation/devicetree/bindings/sound/qcom,q6apm-dai.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,q6apm-dai.yaml
@@ -16,16 +16,12 @@ properties:
compatible:
const: qcom,q6apm-dais
- reg:
- maxItems: 1
-
iommus:
maxItems: 1
required:
- compatible
- iommus
- - reg
additionalProperties: false
@@ -37,17 +33,14 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
qcom,domain = <GPR_DOMAIN_ID_ADSP>;
- service@1 {
- compatible = "qcom,q6apm";
- reg = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- apm-dai@1 {
- compatible = "qcom,q6apm-dais";
- iommus = <&apps_smmu 0x1801 0x0>;
+ service@1 {
+ compatible = "qcom,q6apm";
reg = <1>;
- };
+
+ dais {
+ compatible = "qcom,q6apm-dais";
+ iommus = <&apps_smmu 0x1801 0x0>;
+ };
};
};
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml b/Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml
new file mode 100644
index 000000000000..8deb8ffb143b
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,q6asm-dais.yaml
@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,q6asm-dais.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Audio Stream Manager (Q6ASM)
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description:
+ Q6ASM is one of the APR audio services on Q6DSP. Each of its subnodes
+ represent a dai with board specific configuration.
+
+properties:
+ compatible:
+ enum:
+ - qcom,q6asm-dais
+
+ iommus:
+ maxItems: 1
+
+ "#sound-dai-cells":
+ const: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+patternProperties:
+ "^dai@[0-9]+$":
+ type: object
+ description:
+ Q6ASM Digital Audio Interface
+
+ properties:
+ reg:
+ maxItems: 1
+
+ direction:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [0, 1, 2]
+ description: |
+ The direction of the dai stream::
+ - Q6ASM_DAI_TX_RX (0) for both tx and rx
+ - Q6ASM_DAI_TX (1) for only tx (Capture/Encode)
+ - Q6ASM_DAI_RX (2) for only rx (Playback/Decode)
+
+ is-compress-dai:
+ type: boolean
+ description:
+ Compress offload dai.
+
+ dependencies:
+ is-compress-dai: ["direction"]
+
+ required:
+ - reg
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - "#sound-dai-cells"
+ - "#address-cells"
+ - "#size-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/soc/qcom,apr.h>
+ #include <dt-bindings/sound/qcom,q6asm.h>
+
+ apr {
+ compatible = "qcom,apr-v2";
+ qcom,domain = <APR_DOMAIN_ADSP>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ service@7 {
+ compatible = "qcom,q6asm";
+ reg = <APR_SVC_ASM>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+
+ dais {
+ compatible = "qcom,q6asm-dais";
+ iommus = <&apps_smmu 0x1821 0x0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #sound-dai-cells = <1>;
+
+ dai@0 {
+ reg = <0>;
+ };
+
+ dai@1 {
+ reg = <1>;
+ };
+
+ dai@2 {
+ reg = <2>;
+ is-compress-dai;
+ direction = <1>;
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6asm.txt b/Documentation/devicetree/bindings/sound/qcom,q6asm.txt
deleted file mode 100644
index 0d0075125243..000000000000
--- a/Documentation/devicetree/bindings/sound/qcom,q6asm.txt
+++ /dev/null
@@ -1,70 +0,0 @@
-Qualcomm Audio Stream Manager (Q6ASM) binding
-
-Q6ASM is one of the APR audio service on Q6DSP.
-Please refer to qcom,apr.txt for details of the common apr service bindings
-used by the apr service device.
-
-- but must contain the following property:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,q6asm-v<MAJOR-NUMBER>.<MINOR-NUMBER>".
- Or "qcom,q6asm" where the version number can be queried
- from DSP.
- example "qcom,q6asm-v2.0"
-
-= ASM DAIs (Digital Audio Interface)
-"dais" subnode of the ASM node represents dai specific configuration
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,q6asm-dais".
-
-- #sound-dai-cells
- Usage: required
- Value type: <u32>
- Definition: Must be 1
-
-== ASM DAI is subnode of "dais" and represent a dai, it includes board specific
-configuration of each dai. Must contain the following properties.
-
-- reg
- Usage: required
- Value type: <u32>
- Definition: Must be dai id
-
-- direction:
- Usage: Required for Compress offload dais
- Value type: <u32>
- Definition: Specifies the direction of the dai stream
- Q6ASM_DAI_TX_RX (0) for both tx and rx
- Q6ASM_DAI_TX (1) for only tx (Capture/Encode)
- Q6ASM_DAI_RX (2) for only rx (Playback/Decode)
-
-- is-compress-dai:
- Usage: Required for Compress offload dais
- Value type: <boolean>
- Definition: present for Compress offload dais
-
-
-= EXAMPLE
-#include <dt-bindings/sound/qcom,q6asm.h>
-
-apr-service@7 {
- compatible = "qcom,q6asm";
- reg = <APR_SVC_ASM>;
- q6asmdai: dais {
- compatible = "qcom,q6asm-dais";
- #address-cells = <1>;
- #size-cells = <0>;
- #sound-dai-cells = <1>;
-
- dai@0 {
- reg = <0>;
- direction = <Q6ASM_DAI_RX>;
- is-compress-dai;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6core.txt b/Documentation/devicetree/bindings/sound/qcom,q6core.txt
deleted file mode 100644
index 5cd4cc9b1fde..000000000000
--- a/Documentation/devicetree/bindings/sound/qcom,q6core.txt
+++ /dev/null
@@ -1,21 +0,0 @@
-Qualcomm ADSP Core service binding
-
-Q6CORE is one of the APR audio service on Q6DSP.
-Please refer to qcom,apr.txt for details of the common apr service bindings
-used by the apr service device.
-
-- but must contain the following property:
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be "qcom,q6core-v<MAJOR-NUMBER>.<MINOR-NUMBER>".
- Or "qcom,q6core" where the version number can be queried
- from DSP.
- example "qcom,q6core-v2.0"
-
-= EXAMPLE
-apr-service@3 {
- compatible = "qcom,q6core";
- reg = <APR_SVC_ADSP_CORE>;
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml b/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml
index f83f00737a2f..fd567d20417d 100644
--- a/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-clocks.yaml
@@ -18,9 +18,6 @@ properties:
- qcom,q6afe-clocks
- qcom,q6prm-lpass-clocks
- reg:
- maxItems: 1
-
'#clock-cells':
const: 2
description:
@@ -32,7 +29,6 @@ properties:
required:
- compatible
- - reg
- "#clock-cells"
additionalProperties: false
@@ -42,19 +38,22 @@ examples:
#include <dt-bindings/soc/qcom,apr.h>
#include <dt-bindings/sound/qcom,q6afe.h>
apr {
+ compatible = "qcom,apr-v2";
+ qcom,domain = <APR_DOMAIN_ADSP>;
#address-cells = <1>;
#size-cells = <0>;
- apr-service@4 {
+
+ service@4 {
+ compatible = "qcom,q6afe";
reg = <APR_SVC_AFE>;
- #address-cells = <1>;
- #size-cells = <0>;
- clock-controller@2 {
- compatible = "qcom,q6afe-clocks";
- reg = <2>;
- #clock-cells = <2>;
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+
+ clock-controller {
+ compatible = "qcom,q6afe-clocks";
+ #clock-cells = <2>;
};
};
- };
+ };
- |
#include <dt-bindings/soc/qcom,gpr.h>
@@ -63,15 +62,14 @@ examples:
qcom,domain = <GPR_DOMAIN_ID_ADSP>;
#address-cells = <1>;
#size-cells = <0>;
+
service@2 {
reg = <GPR_PRM_MODULE_IID>;
compatible = "qcom,q6prm";
- #address-cells = <1>;
- #size-cells = <0>;
- clock-controller@2 {
- compatible = "qcom,q6prm-lpass-clocks";
- reg = <2>;
- #clock-cells = <2>;
+
+ clock-controller {
+ compatible = "qcom,q6prm-lpass-clocks";
+ #clock-cells = <2>;
};
};
- };
+ };
diff --git a/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-ports.yaml b/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-ports.yaml
index dc7fba7b92d5..e53fc0960a14 100644
--- a/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-ports.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,q6dsp-lpass-ports.yaml
@@ -18,9 +18,6 @@ properties:
- qcom,q6afe-dais
- qcom,q6apm-lpass-dais
- reg:
- maxItems: 1
-
'#sound-dai-cells':
const: 1
@@ -145,7 +142,6 @@ patternProperties:
required:
- compatible
- - reg
- "#sound-dai-cells"
- "#address-cells"
- "#size-cells"
@@ -157,26 +153,29 @@ examples:
#include <dt-bindings/soc/qcom,apr.h>
#include <dt-bindings/sound/qcom,q6afe.h>
apr {
+ compatible = "qcom,apr-v2";
#address-cells = <1>;
#size-cells = <0>;
- apr-service@4 {
+ qcom,domain = <APR_DOMAIN_ADSP>;
+
+ service@4 {
+ compatible = "qcom,q6afe";
reg = <APR_SVC_AFE>;
- #address-cells = <1>;
- #size-cells = <0>;
- q6afedai@1 {
- compatible = "qcom,q6afe-dais";
- reg = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
- #sound-dai-cells = <1>;
-
- dai@22 {
- reg = <QUATERNARY_MI2S_RX>;
- qcom,sd-lines = <0 1 2 3>;
- };
+ qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd";
+
+ dais {
+ compatible = "qcom,q6afe-dais";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #sound-dai-cells = <1>;
+
+ dai@22 {
+ reg = <QUATERNARY_MI2S_RX>;
+ qcom,sd-lines = <0 1 2 3>;
+ };
};
};
- };
+ };
- |
#include <dt-bindings/soc/qcom,gpr.h>
gpr {
@@ -184,22 +183,21 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
qcom,domain = <GPR_DOMAIN_ID_ADSP>;
+
service@1 {
compatible = "qcom,q6apm";
reg = <GPR_APM_MODULE_IID>;
- #address-cells = <1>;
- #size-cells = <0>;
- q6apmdai@1 {
- compatible = "qcom,q6apm-lpass-dais";
- reg = <1>;
- #address-cells = <1>;
- #size-cells = <0>;
- #sound-dai-cells = <1>;
-
- dai@22 {
- reg = <QUATERNARY_MI2S_RX>;
- qcom,sd-lines = <0 1 2 3>;
- };
+
+ dais {
+ compatible = "qcom,q6apm-lpass-dais";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ #sound-dai-cells = <1>;
+
+ dai@22 {
+ reg = <QUATERNARY_MI2S_RX>;
+ qcom,sd-lines = <0 1 2 3>;
+ };
};
};
- };
+ };
diff --git a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
deleted file mode 100644
index de4c604641da..000000000000
--- a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
+++ /dev/null
@@ -1,91 +0,0 @@
-* Qualcomm Technologies Inc. SDM845 ASoC sound card driver
-
-This binding describes the SDM845 sound card, which uses qdsp for audio.
-
-- compatible:
- Usage: required
- Value type: <stringlist>
- Definition: must be one of this
- "qcom,sdm845-sndcard"
- "qcom,db845c-sndcard"
- "lenovo,yoga-c630-sndcard"
-
-- audio-routing:
- Usage: Optional
- Value type: <stringlist>
- Definition: A list of the connections between audio components.
- Each entry is a pair of strings, the first being the
- connection's sink, the second being the connection's
- source. Valid names could be power supplies, MicBias
- of codec and the jacks on the board.
-
-- model:
- Usage: required
- Value type: <stringlist>
- Definition: The user-visible name of this sound card.
-
-- aux-devs
- Usage: optional
- Value type: <array of phandles>
- Definition: A list of phandles for auxiliary devices (e.g. analog
- amplifiers) that do not appear directly within the DAI
- links. Should be connected to another audio component
- using "audio-routing".
-
-= dailinks
-Each subnode of sndcard represents either a dailink, and subnodes of each
-dailinks would be cpu/codec/platform dais.
-
-- link-name:
- Usage: required
- Value type: <string>
- Definition: User friendly name for dai link
-
-= CPU, PLATFORM, CODEC dais subnodes
-- cpu:
- Usage: required
- Value type: <subnode>
- Definition: cpu dai sub-node
-
-- codec:
- Usage: required
- Value type: <subnode>
- Definition: codec dai sub-node
-
-- platform:
- Usage: Optional
- Value type: <subnode>
- Definition: platform dai sub-node
-
-- sound-dai:
- Usage: required
- Value type: <phandle>
- Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
-
-Example:
-
-audio {
- compatible = "qcom,sdm845-sndcard";
- model = "sdm845-snd-card";
- pinctrl-names = "default", "sleep";
- pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
- pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
-
- mm1-dai-link {
- link-name = "MultiMedia1";
- cpu {
- sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
- };
- };
-
- pri-mi2s-dai-link {
- link-name = "PRI MI2S Playback";
- cpu {
- sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
- };
-
- platform {
- sound-dai = <&q6routing>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
index 4ecd4080bb96..70080d04ddc9 100644
--- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml
@@ -16,10 +16,15 @@ description:
properties:
compatible:
enum:
+ - lenovo,yoga-c630-sndcard
- qcom,apq8016-sbc-sndcard
+ - qcom,db845c-sndcard
- qcom,msm8916-qdsp6-sndcard
- - qcom,sm8250-sndcard
- qcom,qrb5165-rb5-sndcard
+ - qcom,sc8280xp-sndcard
+ - qcom,sdm845-sndcard
+ - qcom,sm8250-sndcard
+ - qcom,sm8450-sndcard
audio-routing:
$ref: /schemas/types.yaml#/definitions/non-unique-string-array
@@ -68,6 +73,8 @@ patternProperties:
cpu:
description: Holds subnode which indicates cpu dai.
type: object
+ additionalProperties: false
+
properties:
sound-dai:
maxItems: 1
@@ -75,6 +82,8 @@ patternProperties:
platform:
description: Holds subnode which indicates platform dai.
type: object
+ additionalProperties: false
+
properties:
sound-dai:
maxItems: 1
@@ -82,6 +91,8 @@ patternProperties:
codec:
description: Holds subnode which indicates codec dai.
type: object
+ additionalProperties: false
+
properties:
sound-dai:
minItems: 1
diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
index 9b225dbf8b79..8ca19f2b0b3d 100644
--- a/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml
@@ -127,7 +127,7 @@ properties:
gpio@42:
type: object
- $ref: ../gpio/qcom,wcd934x-gpio.yaml#
+ $ref: /schemas/gpio/qcom,wcd934x-gpio.yaml#
patternProperties:
"^.*@[0-9a-f]+$":
diff --git a/Documentation/devicetree/bindings/sound/qcom,wsa883x.yaml b/Documentation/devicetree/bindings/sound/qcom,wsa883x.yaml
new file mode 100644
index 000000000000..6113f65f2990
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/qcom,wsa883x.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/qcom,wsa883x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bindings for The Qualcomm WSA8830/WSA8832/WSA8835
+ smart speaker amplifier
+
+maintainers:
+ - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
+
+description: |
+ WSA883X is the Qualcomm Aqstic smart speaker amplifier
+ Their primary operating mode uses a SoundWire digital audio
+ interface. This binding is for SoundWire interface.
+
+properties:
+ compatible:
+ const: sdw10217020200
+
+ reg:
+ maxItems: 1
+
+ powerdown-gpios:
+ description: GPIO spec for Powerdown/Shutdown line to use
+ maxItems: 1
+
+ vdd-supply:
+ description: VDD Supply for the Codec
+
+ '#thermal-sensor-cells':
+ const: 0
+
+ '#sound-dai-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - vdd-supply
+ - powerdown-gpios
+ - "#thermal-sensor-cells"
+ - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ soundwire-controller@3250000 {
+ #address-cells = <2>;
+ #size-cells = <0>;
+ reg = <0x3250000 0x2000>;
+
+ speaker@0,1 {
+ compatible = "sdw10217020200";
+ reg = <0 1>;
+ powerdown-gpios = <&tlmm 1 0>;
+ vdd-supply = <&vreg_s10b_1p8>;
+ #thermal-sensor-cells = <0>;
+ #sound-dai-cells = <0>;
+ };
+
+ speaker@0,2 {
+ compatible = "sdw10217020200";
+ reg = <0 2>;
+ powerdown-gpios = <&tlmm 89 0>;
+ vdd-supply = <&vreg_s10b_1p8>;
+ #thermal-sensor-cells = <0>;
+ #sound-dai-cells = <0>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml b/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml
index e17c0245f77a..679a246dd666 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml
+++ b/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/renesas,rsnd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Renesas R-Car Sound Driver Device Tree Bindings
+title: Renesas R-Car Sound Driver
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
@@ -129,6 +129,8 @@ properties:
patternProperties:
"^dvc-[0-1]$":
type: object
+ additionalProperties: false
+
properties:
dmas:
maxItems: 1
@@ -145,7 +147,7 @@ properties:
patternProperties:
"^mix-[0-1]$":
type: object
- # no properties
+ additionalProperties: false
additionalProperties: false
rcar_sound,ctu:
@@ -154,7 +156,7 @@ properties:
patternProperties:
"^ctu-[0-7]$":
type: object
- # no properties
+ additionalProperties: false
additionalProperties: false
rcar_sound,src:
@@ -163,6 +165,8 @@ properties:
patternProperties:
"^src-[0-9]$":
type: object
+ additionalProperties: false
+
properties:
interrupts:
maxItems: 1
@@ -186,6 +190,8 @@ properties:
patternProperties:
"^ssiu-[0-9]+$":
type: object
+ additionalProperties: false
+
properties:
dmas:
maxItems: 2
@@ -206,6 +212,8 @@ properties:
patternProperties:
"^ssi-[0-9]$":
type: object
+ additionalProperties: false
+
properties:
interrupts:
maxItems: 1
@@ -243,6 +251,8 @@ properties:
patternProperties:
"^dai([0-9]+)?$":
type: object
+ additionalProperties: false
+
properties:
playback:
$ref: /schemas/types.yaml#/definitions/phandle-array
diff --git a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
index 7e8d252f7bca..0d9840375132 100644
--- a/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
+++ b/Documentation/devicetree/bindings/sound/renesas,rz-ssi.yaml
@@ -13,6 +13,7 @@ properties:
compatible:
items:
- enum:
+ - renesas,r9a07g043-ssi # RZ/G2UL
- renesas,r9a07g044-ssi # RZ/G2{L,LC}
- renesas,r9a07g054-ssi # RZ/V2L
- const: renesas,rz-ssi
@@ -50,7 +51,7 @@ properties:
minItems: 1
maxItems: 2
description:
- The first cell represents a phandle to dmac
+ The first cell represents a phandle to dmac.
The second cell specifies the encoded MID/RID values of the SSI port
connected to the DMA client and the slave channel configuration
parameters.
diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 5ea16b8ef93f..7e36e389e976 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -61,6 +61,13 @@ properties:
- const: tx
- const: rx
+ pinctrl-names:
+ oneOf:
+ - const: default
+ - items:
+ - const: bclk_on
+ - const: bclk_off
+
power-domains:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/samsung,aries-wm8994.yaml b/Documentation/devicetree/bindings/sound/samsung,aries-wm8994.yaml
index a01c4ad929b8..447e013f6e17 100644
--- a/Documentation/devicetree/bindings/sound/samsung,aries-wm8994.yaml
+++ b/Documentation/devicetree/bindings/sound/samsung,aries-wm8994.yaml
@@ -23,6 +23,7 @@ properties:
cpu:
type: object
+ additionalProperties: false
properties:
sound-dai:
minItems: 2
@@ -34,6 +35,7 @@ properties:
- sound-dai
codec:
+ additionalProperties: false
type: object
properties:
sound-dai:
diff --git a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
index ec50bcb4af5f..31095913e330 100644
--- a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
+++ b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml
@@ -19,6 +19,7 @@ properties:
cpu:
type: object
+ additionalProperties: false
properties:
sound-dai:
maxItems: 1
@@ -28,6 +29,7 @@ properties:
codec:
type: object
+ additionalProperties: false
properties:
sound-dai:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/samsung,snow.yaml b/Documentation/devicetree/bindings/sound/samsung,snow.yaml
index 51a83d3c7274..3d49aa4c9be2 100644
--- a/Documentation/devicetree/bindings/sound/samsung,snow.yaml
+++ b/Documentation/devicetree/bindings/sound/samsung,snow.yaml
@@ -19,6 +19,7 @@ properties:
codec:
type: object
+ additionalProperties: false
properties:
sound-dai:
description: List of phandles to the CODEC and HDMI IP nodes.
@@ -30,6 +31,7 @@ properties:
cpu:
type: object
+ additionalProperties: false
properties:
sound-dai:
description: Phandle to the Samsung I2S controller.
diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.yaml b/Documentation/devicetree/bindings/sound/sgtl5000.yaml
index e762c320b574..2bc7f00ce4a2 100644
--- a/Documentation/devicetree/bindings/sound/sgtl5000.yaml
+++ b/Documentation/devicetree/bindings/sound/sgtl5000.yaml
@@ -47,6 +47,7 @@ properties:
description: The bias voltage to be used in mVolts. The voltage can take
values from 1.25V to 3V by 250mV steps. If this node is not mentioned
or the value is unknown, then the value is set to 1.25V.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
enum: [ 1250, 1500, 1750, 2000, 2250, 2500, 2750, 3000 ]
lrclk-strength:
diff --git a/Documentation/devicetree/bindings/sound/simple-audio-amplifier.yaml b/Documentation/devicetree/bindings/sound/simple-audio-amplifier.yaml
index 8327846356d3..5428ba9e23a6 100644
--- a/Documentation/devicetree/bindings/sound/simple-audio-amplifier.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-audio-amplifier.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/simple-audio-amplifier.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Simple Audio Amplifier Device Tree Bindings
+title: Simple Audio Amplifier
maintainers:
- Jerome Brunet <jbrunet@baylibre.com>
diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml
index b261d49b9ddb..ed19899bc94b 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-card.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/simple-card.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Simple Audio Card Driver Device Tree Bindings
+title: Simple Audio Card Driver
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
diff --git a/Documentation/devicetree/bindings/sound/snps,designware-i2s.yaml b/Documentation/devicetree/bindings/sound/snps,designware-i2s.yaml
new file mode 100644
index 000000000000..4b0795819064
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/snps,designware-i2s.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/snps,designware-i2s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: DesignWare I2S controller
+
+maintainers:
+ - Jose Abreu <joabreu@synopsys.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: canaan,k210-i2s
+ - const: snps,designware-i2s
+ - enum:
+ - snps,designware-i2s
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ description: |
+ The interrupt line number for the I2S controller. Add this
+ parameter if the I2S controller that you are using does not
+ support DMA.
+ maxItems: 1
+
+ clocks:
+ description: Sampling rate reference clock
+ maxItems: 1
+
+ clock-names:
+ const: i2sclk
+
+ resets:
+ maxItems: 1
+
+ dmas:
+ items:
+ - description: TX DMA Channel
+ - description: RX DMA Channel
+ minItems: 1
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+ minItems: 1
+
+if:
+ properties:
+ compatible:
+ contains:
+ const: canaan,k210-i2s
+
+then:
+ properties:
+ "#sound-dai-cells":
+ const: 1
+
+else:
+ properties:
+ "#sound-dai-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+oneOf:
+ - required:
+ - dmas
+ - dma-names
+ - required:
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ soc_i2s: i2s@7ff90000 {
+ compatible = "snps,designware-i2s";
+ reg = <0x7ff90000 0x1000>;
+ clocks = <&scpi_i2sclk 0>;
+ clock-names = "i2sclk";
+ #sound-dai-cells = <0>;
+ dmas = <&dma0 5>;
+ dma-names = "tx";
+ };
diff --git a/Documentation/devicetree/bindings/sound/sound-dai.yaml b/Documentation/devicetree/bindings/sound/sound-dai.yaml
index 61c6f7abc4e7..ff9036e43c44 100644
--- a/Documentation/devicetree/bindings/sound/sound-dai.yaml
+++ b/Documentation/devicetree/bindings/sound/sound-dai.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/sound-dai.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Digital Audio Interface consumer Device Tree Bindings
+title: Digital Audio Interface consumer
maintainers:
- Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/sound/st,stm32-sai.yaml b/Documentation/devicetree/bindings/sound/st,stm32-sai.yaml
index fe2e15504ebc..56d206f97a96 100644
--- a/Documentation/devicetree/bindings/sound/st,stm32-sai.yaml
+++ b/Documentation/devicetree/bindings/sound/st,stm32-sai.yaml
@@ -60,6 +60,7 @@ required:
patternProperties:
"^audio-controller@[0-9a-f]+$":
type: object
+ additionalProperties: false
description:
Two subnodes corresponding to SAI sub-block instances A et B
can be defined. Subnode can be omitted for unsused sub-block.
@@ -121,6 +122,10 @@ patternProperties:
description: Configure the SAI device as master clock provider.
const: 0
+ port:
+ $ref: audio-graph-port.yaml#
+ unevaluatedProperties: false
+
required:
- compatible
- "#sound-dai-cells"
diff --git a/Documentation/devicetree/bindings/sound/tas2562.yaml b/Documentation/devicetree/bindings/sound/tas2562.yaml
index 5f7dd5d6cbca..30f6b029ac08 100644
--- a/Documentation/devicetree/bindings/sound/tas2562.yaml
+++ b/Documentation/devicetree/bindings/sound/tas2562.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Texas Instruments TAS2562 Smart PA
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The TAS2562 is a mono, digital input Class-D audio amplifier optimized for
diff --git a/Documentation/devicetree/bindings/sound/test-component.yaml b/Documentation/devicetree/bindings/sound/test-component.yaml
index 17fdb4317239..9c40a2122dfd 100644
--- a/Documentation/devicetree/bindings/sound/test-component.yaml
+++ b/Documentation/devicetree/bindings/sound/test-component.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/test-component.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Test Component Device Tree Bindings
+title: Test Component
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
diff --git a/Documentation/devicetree/bindings/sound/ti,src4xxx.yaml b/Documentation/devicetree/bindings/sound/ti,src4xxx.yaml
new file mode 100644
index 000000000000..9681b72b4918
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,src4xxx.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,src4xxx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments SRC4392 Device Tree Bindings
+
+description: |
+ The SRC4392 is a digital audio codec that can be connected via
+ I2C or SPI. Currently, only I2C bus is supported.
+
+maintainers:
+ - Matt Flax <flatmax@flatmax.com>
+
+allOf:
+ - $ref: name-prefix.yaml#
+
+properties:
+ compatible:
+ const: ti,src4392
+
+ "#sound-dai-cells":
+ const: 0
+
+ reg:
+ maxItems: 1
+
+required:
+ - "#sound-dai-cells"
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ audio-codec@70 {
+ #sound-dai-cells = <0>;
+ compatible = "ti,src4392";
+ reg = <0x70>;
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml b/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml
new file mode 100644
index 000000000000..785930658029
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/ti,ts3a227e.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments TS3A227E
+ Autonomous Audio Accessory Detection and Configuration Switch
+
+maintainers:
+ - Dylan Reid <dgreid@chromium.org>
+
+description: |
+ The TS3A227E detect headsets of 3-ring and 4-ring standards and
+ switches automatically to route the microphone correctly. It also
+ handles key press detection in accordance with the Android audio
+ headset specification v1.0.
+
+properties:
+ compatible:
+ enum:
+ - ti,ts3a227e
+
+ reg:
+ const: 0x3b
+
+ interrupts:
+ maxItems: 1
+
+ ti,micbias:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Intended MICBIAS voltage (datasheet section 9.6.7).
+ enum:
+ - 0 # 2.1 V
+ - 1 # 2.2 V
+ - 2 # 2.3 V
+ - 3 # 2.4 V
+ - 4 # 2.5 V
+ - 5 # 2.6 V
+ - 6 # 2.7 V
+ - 7 # 2.8 V
+ default: 1
+
+ ti,debounce-release-ms:
+ description: key release debounce time in ms (datasheet section 9.6.7).
+ enum:
+ - 0
+ - 20
+ default: 20
+
+ ti,debounce-press-ms:
+ description: key press debounce time in ms (datasheet section 9.6.7).
+ enum:
+ - 2
+ - 40
+ - 80
+ - 120
+ default: 80
+
+ ti,debounce-insertion-ms:
+ description: headset insertion debounce time in ms (datasheet section 9.6.5).
+ enum:
+ - 2
+ - 30
+ - 60
+ - 90
+ - 120
+ - 150
+ - 1000
+ - 2000
+ default: 90
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ codec: audio-controller@3b {
+ compatible = "ti,ts3a227e";
+ reg = <0x3b>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
index 2ad17b361db0..ee698614862e 100644
--- a/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
+++ b/Documentation/devicetree/bindings/sound/tlv320adcx140.yaml
@@ -8,7 +8,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments TLV320ADCX140 Quad Channel Analog-to-Digital Converter
maintainers:
- - Dan Murphy <dmurphy@ti.com>
+ - Andrew Davis <afd@ti.com>
description: |
The TLV320ADCX140 are multichannel (4-ch analog recording or 8-ch digital
@@ -68,9 +68,9 @@ properties:
array is defined as <PDMIN1 PDMIN2 PDMIN3 PDMIN4>.
0 - (default) Odd channel is latched on the negative edge and even
- channel is latched on the the positive edge.
+ channel is latched on the positive edge.
1 - Odd channel is latched on the positive edge and even channel is
- latched on the the negative edge.
+ latched on the negative edge.
PDMIN1 - PDMCLK latching edge used for channel 1 and 2 data
PDMIN2 - PDMCLK latching edge used for channel 3 and 4 data
diff --git a/Documentation/devicetree/bindings/sound/ts3a227e.txt b/Documentation/devicetree/bindings/sound/ts3a227e.txt
deleted file mode 100644
index 21ab45bc7e8f..000000000000
--- a/Documentation/devicetree/bindings/sound/ts3a227e.txt
+++ /dev/null
@@ -1,30 +0,0 @@
-Texas Instruments TS3A227E
-Autonomous Audio Accessory Detection and Configuration Switch
-
-The TS3A227E detect headsets of 3-ring and 4-ring standards and
-switches automatically to route the microphone correctly. It also
-handles key press detection in accordance with the Android audio
-headset specification v1.0.
-
-Required properties:
-
- - compatible: Should contain "ti,ts3a227e".
- - reg: The i2c address. Should contain <0x3b>.
- - interrupts: Interrupt number for /INT pin from the 227e
-
-Optional properies:
- - ti,micbias: Intended MICBIAS voltage (datasheet section 9.6.7).
- Select 0/1/2/3/4/5/6/7 to specify MICBIAS voltage
- 2.1V/2.2V/2.3V/2.4V/2.5V/2.6V/2.7V/2.8V
- Default value is "1" (2.2V).
-
-Examples:
-
- i2c {
- ts3a227e@3b {
- compatible = "ti,ts3a227e";
- reg = <0x3b>;
- interrupt-parent = <&gpio>;
- interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
- };
- };
diff --git a/Documentation/devicetree/bindings/sound/wlf,wm8731.yaml b/Documentation/devicetree/bindings/sound/wlf,wm8731.yaml
index e7220e8b49f0..15795f63b5a3 100644
--- a/Documentation/devicetree/bindings/sound/wlf,wm8731.yaml
+++ b/Documentation/devicetree/bindings/sound/wlf,wm8731.yaml
@@ -52,10 +52,6 @@ properties:
DCVDD-supply:
description: Digital core supply regulator for the DCVDD pin.
- spi-max-frequency: true
-
-additionalProperties: false
-
required:
- reg
- compatible
@@ -64,6 +60,11 @@ required:
- DBVDD-supply
- DCVDD-supply
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
examples:
- |
spi {
diff --git a/Documentation/devicetree/bindings/sound/wlf,wm8940.yaml b/Documentation/devicetree/bindings/sound/wlf,wm8940.yaml
index 8aadcbeed502..7386abb3a250 100644
--- a/Documentation/devicetree/bindings/sound/wlf,wm8940.yaml
+++ b/Documentation/devicetree/bindings/sound/wlf,wm8940.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/wlf,wm8940.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Wolfson WM8940 Codec Device Tree Bindings
+title: Wolfson WM8940 Codec
maintainers:
- patches@opensource.cirrus.com
diff --git a/Documentation/devicetree/bindings/sound/wlf,wm8978.yaml b/Documentation/devicetree/bindings/sound/wlf,wm8978.yaml
index 96cf9fc9c8b0..1c8985d4dd5a 100644
--- a/Documentation/devicetree/bindings/sound/wlf,wm8978.yaml
+++ b/Documentation/devicetree/bindings/sound/wlf,wm8978.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sound/wlf,wm8978.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Wolfson WM8978 Codec Device Tree Bindings
+title: Wolfson WM8978 Codec
maintainers:
- patches@opensource.cirrus.com
diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml b/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
index 8036499112f5..f1176a28fd87 100644
--- a/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/allwinner,sun4i-a10-spi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/allwinner,sun4i-a10-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 SPI Controller Device Tree Bindings
+title: Allwinner A10 SPI Controller
allOf:
- $ref: "spi-controller.yaml"
diff --git a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
index ca4c95345a49..58b7056f4a70 100644
--- a/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/allwinner,sun6i-a31-spi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/allwinner,sun6i-a31-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A31 SPI Controller Device Tree Bindings
+title: Allwinner A31 SPI Controller
allOf:
- $ref: "spi-controller.yaml"
diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
index 50de0da42c13..0c10f7678178 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson-gx-spicc.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson SPI Communication Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
allOf:
- $ref: "spi-controller.yaml#"
diff --git a/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml b/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml
index 8a9d526d06eb..ac3b2ec300ac 100644
--- a/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml
+++ b/Documentation/devicetree/bindings/spi/amlogic,meson6-spifc.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson SPI Flash Controller
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
allOf:
- $ref: "spi-controller.yaml#"
diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml
new file mode 100644
index 000000000000..4dd973e341e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 Microchip Technology, Inc. and its subsidiaries
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/atmel,at91rm9200-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Atmel SPI device
+
+maintainers:
+ - Tudor Ambarus <tudor.ambarus@microchip.com>
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: atmel,at91rm9200-spi
+ - items:
+ - const: microchip,sam9x60-spi
+ - const: atmel,at91rm9200-spi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clock-names:
+ contains:
+ const: spi_clk
+
+ clocks:
+ maxItems: 1
+
+ dmas:
+ items:
+ - description: TX DMA Channel
+ - description: RX DMA Channel
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
+ atmel,fifo-size:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Maximum number of data the RX and TX FIFOs can store for FIFO
+ capable SPI controllers.
+ enum: [ 16, 32 ]
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clock-names
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi1: spi@fffcc000 {
+ compatible = "atmel,at91rm9200-spi";
+ reg = <0xfffcc000 0x4000>;
+ interrupts = <13 IRQ_TYPE_LEVEL_HIGH 5>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&spi1_clk>;
+ clock-names = "spi_clk";
+ cs-gpios = <&pioB 3 GPIO_ACTIVE_HIGH>;
+ atmel,fifo-size = <32>;
+
+ mmc@0 {
+ compatible = "mmc-spi-slot";
+ reg = <0>;
+ gpios = <&pioC 4 GPIO_ACTIVE_HIGH>; /* CD */
+ spi-max-frequency = <25000000>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor-peripheral-props.yaml
index 553601a441a7..510b82c177c0 100644
--- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor-peripheral-props.yaml
@@ -10,7 +10,7 @@ description:
See spi-peripheral-props.yaml for more info.
maintainers:
- - Pratyush Yadav <p.yadav@ti.com>
+ - Vaishnav Achath <vaishnav.a@ti.com>
properties:
# cdns,qspi-nor.yaml
diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
index 0a537fa3a641..4707294d8f59 100644
--- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
@@ -7,7 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cadence Quad SPI controller
maintainers:
- - Pratyush Yadav <p.yadav@ti.com>
+ - Vaishnav Achath <vaishnav.a@ti.com>
allOf:
- $ref: spi-controller.yaml#
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
deleted file mode 100644
index e0fa61a1be0c..000000000000
--- a/Documentation/devicetree/bindings/spi/efm32-spi.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-* Energy Micro EFM32 SPI
-
-Required properties:
-- #address-cells: see spi-bus.txt
-- #size-cells: see spi-bus.txt
-- compatible: should be "energymicro,efm32-spi"
-- reg: Offset and length of the register set for the controller
-- interrupts: pair specifying rx and tx irq
-- clocks: phandle to the spi clock
-- cs-gpios: see spi-bus.txt
-
-Recommended properties :
-- energymicro,location: Value to write to the ROUTE register's LOCATION
- bitfield to configure the pinmux for the device, see
- datasheet for values.
- If this property is not provided, keeping what is
- already configured in the hardware, so its either the
- reset default 0 or whatever the bootloader did.
-
-Example:
-
-spi1: spi@4000c400 { /* USART1 */
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "energymicro,efm32-spi";
- reg = <0x4000c400 0x400>;
- interrupts = <15 16>;
- clocks = <&cmu 20>;
- cs-gpios = <&gpio 51 1>; // D3
- energymicro,location = <1>;
-
- ks8851@0 {
- compatible = "ks8851";
- spi-max-frequency = <6000000>;
- reg = <0>;
- interrupt-parent = <&boardfpga>;
- interrupts = <4>;
- };
-};
diff --git a/Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml b/Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml
new file mode 100644
index 000000000000..7797c3123b7e
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/hpe,gxp-spifi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP spi controller flash interface
+
+maintainers:
+ - Nick Hawkins <nick.hawkins@hpe.com>
+ - Jean-Marie Verdun <verdun@hpe.com>
+
+allOf:
+ - $ref: spi-controller.yaml#
+
+properties:
+ compatible:
+ const: hpe,gxp-spifi
+
+ reg:
+ items:
+ - description: cfg registers
+ - description: data registers
+ - description: mapped memory
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+
+ spi@200 {
+ compatible = "hpe,gxp-spifi";
+ reg = <0x200 0x80>, <0xc000 0x100>, <0x38000000 0x800000>;
+ interrupts = <20>;
+ interrupt-parent = <&vic0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ flash@0 {
+ reg = <0>;
+ compatible = "jedec,spi-nor";
+ };
+
+ flash@1 {
+ reg = <1>;
+ compatible = "jedec,spi-nor";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml
index 94ef0552bd42..8d2a6c084eab 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mt65xx.yaml
@@ -18,6 +18,7 @@ properties:
- items:
- enum:
- mediatek,mt7629-spi
+ - mediatek,mt8365-spi
- const: mediatek,mt7622-spi
- items:
- enum:
@@ -33,6 +34,7 @@ properties:
- items:
- enum:
- mediatek,mt7986-spi-ipm
+ - mediatek,mt8188-spi-ipm
- const: mediatek,spi-ipm
- items:
- enum:
diff --git a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
index 41e60fe4b09f..a453996c13f2 100644
--- a/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
+++ b/Documentation/devicetree/bindings/spi/mediatek,spi-mtk-nor.yaml
@@ -23,6 +23,10 @@ allOf:
properties:
compatible:
oneOf:
+ - enum:
+ - mediatek,mt8173-nor
+ - mediatek,mt8186-nor
+ - mediatek,mt8192-nor
- items:
- enum:
- mediatek,mt2701-nor
@@ -30,13 +34,13 @@ properties:
- mediatek,mt7622-nor
- mediatek,mt7623-nor
- mediatek,mt7629-nor
- - mediatek,mt8186-nor
- - mediatek,mt8192-nor
- mediatek,mt8195-nor
- - enum:
- - mediatek,mt8173-nor
- - items:
- const: mediatek,mt8173-nor
+ - items:
+ - enum:
+ - mediatek,mt8188-nor
+ - const: mediatek,mt8186-nor
+
reg:
maxItems: 1
@@ -64,7 +68,6 @@ properties:
required:
- compatible
- reg
- - interrupts
- clocks
- clock-names
@@ -82,8 +85,9 @@ examples:
compatible = "mediatek,mt8173-nor";
reg = <0 0x1100d000 0 0xe0>;
interrupts = <1>;
- clocks = <&pericfg CLK_PERI_SPI>, <&topckgen CLK_TOP_SPINFI_IFR_SEL>;
- clock-names = "spi", "sf";
+ clocks = <&pericfg CLK_PERI_SPI>, <&topckgen CLK_TOP_SPINFI_IFR_SEL>,
+ <&pericfg CLK_PERI_NFI>;
+ clock-names = "spi", "sf", "axi";
#address-cells = <1>;
#size-cells = <0>;
diff --git a/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml b/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
index 7326c0a28d16..1051690e3753 100644
--- a/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/microchip,mpfs-spi.yaml
@@ -4,7 +4,11 @@
$id: http://devicetree.org/schemas/spi/microchip,mpfs-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip MPFS {Q,}SPI Controller Device Tree Bindings
+title: Microchip FPGA {Q,}SPI Controllers
+
+description:
+ SPI and QSPI controllers on Microchip PolarFire SoC and the "soft"/
+ fabric IP cores they are based on
maintainers:
- Conor Dooley <conor.dooley@microchip.com>
@@ -14,9 +18,12 @@ allOf:
properties:
compatible:
- enum:
- - microchip,mpfs-spi
- - microchip,mpfs-qspi
+ oneOf:
+ - items:
+ - const: microchip,mpfs-qspi
+ - const: microchip,coreqspi-rtl-v2
+ - const: microchip,coreqspi-rtl-v2 #FPGA QSPI
+ - const: microchip,mpfs-spi
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/spi/mxicy,mx25f0a-spi.yaml b/Documentation/devicetree/bindings/spi/mxicy,mx25f0a-spi.yaml
index 9202c44b4478..a3aa5e07c0e4 100644
--- a/Documentation/devicetree/bindings/spi/mxicy,mx25f0a-spi.yaml
+++ b/Documentation/devicetree/bindings/spi/mxicy,mx25f0a-spi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/mxicy,mx25f0a-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Macronix SPI controller device tree bindings
+title: Macronix SPI controller
maintainers:
- Miquel Raynal <miquel.raynal@bootlin.com>
diff --git a/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt b/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt
index a388005842ad..c63ce4cc0a80 100644
--- a/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt
+++ b/Documentation/devicetree/bindings/spi/nuvoton,npcm-fiu.txt
@@ -6,8 +6,13 @@ The NPCM7XX supports three FIU modules,
FIU0 and FIUx supports two chip selects,
FIU3 support four chip select.
+The NPCM8XX supports four FIU modules,
+FIU0 and FIUx supports two chip selects,
+FIU1 and FIU3 supports four chip selects.
+
Required properties:
- - compatible : "nuvoton,npcm750-fiu" for the NPCM7XX BMC
+ - compatible : "nuvoton,npcm750-fiu" for Poleg NPCM7XX BMC
+ "nuvoton,npcm845-fiu" for Arbel NPCM8XX BMC
- #address-cells : should be 1.
- #size-cells : should be 0.
- reg : the first contains the register location and length,
@@ -30,6 +35,12 @@ Aliases:
fiu1 represent fiu 3 controller
fiu2 represent fiu x controller
+ In the NPCM8XX BMC:
+ fiu0 represent fiu 0 controller
+ fiu1 represent fiu 1 controller
+ fiu2 represent fiu 3 controller
+ fiu3 represent fiu x controller
+
Example:
fiu3: spi@c00000000 {
compatible = "nuvoton,npcm750-fiu";
diff --git a/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt b/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt
index b98203ca656d..a4e72e52af59 100644
--- a/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt
+++ b/Documentation/devicetree/bindings/spi/nuvoton,npcm-pspi.txt
@@ -3,7 +3,8 @@ Nuvoton NPCM Peripheral Serial Peripheral Interface(PSPI) controller driver
Nuvoton NPCM7xx SOC support two PSPI channels.
Required properties:
- - compatible : "nuvoton,npcm750-pspi" for NPCM7XX BMC
+ - compatible : "nuvoton,npcm750-pspi" for Poleg NPCM7XX.
+ "nuvoton,npcm845-pspi" for Arbel NPCM8XX.
- #address-cells : should be 1. see spi-bus.txt
- #size-cells : should be 0. see spi-bus.txt
- specifies physical base address and size of the register.
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml
new file mode 100644
index 000000000000..2c3cada75339
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad-peripheral-props.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/nvidia,tegra210-quad-peripheral-props.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Peripheral properties for Tegra Quad SPI Controller
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+ - Jonathan Hunter <jonathanh@nvidia.com>
+
+properties:
+ nvidia,tx-clk-tap-delay:
+ description:
+ Delays the clock going out to device with this tap value.
+ Tap value varies based on platform design trace lengths from Tegra
+ QSPI to corresponding slave device.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 31
+
+ nvidia,rx-clk-tap-delay:
+ description:
+ Delays the clock coming in from the device with this tap value.
+ Tap value varies based on platform design trace lengths from Tegra
+ QSPI to corresponding slave device.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
index 0296edd1de22..6b733e5c1163 100644
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
+++ b/Documentation/devicetree/bindings/spi/nvidia,tegra210-quad.yaml
@@ -20,6 +20,7 @@ properties:
- nvidia,tegra186-qspi
- nvidia,tegra194-qspi
- nvidia,tegra234-qspi
+ - nvidia,tegra241-qspi
reg:
maxItems: 1
@@ -57,27 +58,6 @@ patternProperties:
spi-tx-bus-width:
enum: [1, 2, 4]
- nvidia,tx-clk-tap-delay:
- description:
- Delays the clock going out to device with this tap value.
- Tap value varies based on platform design trace lengths from Tegra
- QSPI to corresponding slave device.
- $ref: /schemas/types.yaml#/definitions/uint32
- minimum: 0
- maximum: 31
-
- nvidia,rx-clk-tap-delay:
- description:
- Delays the clock coming in from the device with this tap value.
- Tap value varies based on platform design trace lengths from Tegra
- QSPI to corresponding slave device.
- $ref: /schemas/types.yaml#/definitions/uint32
- minimum: 0
- maximum: 255
-
- required:
- - reg
-
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
index 78ceb9d67754..2e20ca313ec1 100644
--- a/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
+++ b/Documentation/devicetree/bindings/spi/qcom,spi-geni-qcom.yaml
@@ -45,12 +45,15 @@ properties:
- const: rx
interconnects:
- maxItems: 2
+ minItems: 2
+ maxItems: 3
interconnect-names:
+ minItems: 2
items:
- const: qup-core
- const: qup-config
+ - const: qup-memory
interrupts:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/spi/ralink,mt7621-spi.yaml b/Documentation/devicetree/bindings/spi/ralink,mt7621-spi.yaml
new file mode 100644
index 000000000000..22879f7dcb77
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/ralink,mt7621-spi.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/ralink,mt7621-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+maintainers:
+ - Sergio Paracuellos <sergio.paracuellos@gmail.com>
+
+title: Mediatek MT7621/MT7628 SPI controller
+
+allOf:
+ - $ref: /schemas/spi/spi-controller.yaml#
+
+properties:
+ compatible:
+ const: ralink,mt7621-spi
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: spi
+
+ resets:
+ maxItems: 1
+
+ reset-names:
+ const: spi
+
+required:
+ - compatible
+ - reg
+ - resets
+ - "#address-cells"
+ - "#size-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt7621-clk.h>
+ #include <dt-bindings/reset/mt7621-reset.h>
+
+ spi@b00 {
+ compatible = "ralink,mt7621-spi";
+ reg = <0xb00 0x100>;
+ clocks = <&sysc MT7621_CLK_SPI>;
+ clock-names = "spi";
+ resets = <&sysc MT7621_RST_SPI>;
+ reset-names = "spi";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi_pins>;
+ };
diff --git a/Documentation/devicetree/bindings/spi/renesas,sh-msiof.yaml b/Documentation/devicetree/bindings/spi/renesas,sh-msiof.yaml
index 5de710adfa63..491a695a2deb 100644
--- a/Documentation/devicetree/bindings/spi/renesas,sh-msiof.yaml
+++ b/Documentation/devicetree/bindings/spi/renesas,sh-msiof.yaml
@@ -47,10 +47,16 @@ properties:
- renesas,msiof-r8a77980 # R-Car V3H
- renesas,msiof-r8a77990 # R-Car E3
- renesas,msiof-r8a77995 # R-Car D3
- - renesas,msiof-r8a779a0 # R-Car V3U
- const: renesas,rcar-gen3-msiof # generic R-Car Gen3 and RZ/G2
# compatible device
- items:
+ - enum:
+ - renesas,msiof-r8a779a0 # R-Car V3U
+ - renesas,msiof-r8a779f0 # R-Car S4-8
+ - renesas,msiof-r8a779g0 # R-Car V4H
+ - const: renesas,rcar-gen4-msiof # generic R-Car Gen4
+ # compatible device
+ - items:
- const: renesas,sh-msiof # deprecated
reg:
@@ -69,6 +75,12 @@ properties:
clocks:
maxItems: 1
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
num-cs:
description: |
Total number of chip selects (default is 1).
diff --git a/Documentation/devicetree/bindings/spi/samsung,spi.yaml b/Documentation/devicetree/bindings/spi/samsung,spi.yaml
index a50f24f9359d..e0a465d70b0a 100644
--- a/Documentation/devicetree/bindings/spi/samsung,spi.yaml
+++ b/Documentation/devicetree/bindings/spi/samsung,spi.yaml
@@ -20,7 +20,9 @@ properties:
- samsung,s3c2443-spi # for S3C2443, S3C2416 and S3C2450
- samsung,s3c6410-spi
- samsung,s5pv210-spi # for S5PV210 and S5PC110
+ - samsung,exynos4210-spi
- samsung,exynos5433-spi
+ - samsung,exynosautov9-spi
- tesla,fsd-spi
- const: samsung,exynos7-spi
deprecated: true
@@ -85,7 +87,9 @@ allOf:
properties:
compatible:
contains:
- const: samsung,exynos5433-spi
+ enum:
+ - samsung,exynos5433-spi
+ - samsung,exynosautov9-spi
then:
properties:
clocks:
diff --git a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
index d7e08b03e204..d33b72fabc5d 100644
--- a/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
+++ b/Documentation/devicetree/bindings/spi/snps,dw-apb-ssi.yaml
@@ -61,6 +61,8 @@ properties:
- const: snps,dw-apb-ssi
- description: Intel Keem Bay SPI Controller
const: intel,keembay-ssi
+ - description: Intel Thunder Bay SPI Controller
+ const: intel,thunderbay-ssi
- description: Baikal-T1 SPI Controller
const: baikal,bt1-ssi
- description: Baikal-T1 System Boot SPI Controller
@@ -102,7 +104,6 @@ properties:
const: spi
reg-io-width:
- $ref: /schemas/types.yaml#/definitions/uint32
description: I/O register width (in bytes) implemented by this device
default: 4
enum: [ 2, 4 ]
@@ -124,9 +125,16 @@ properties:
rx-sample-delay-ns:
default: 0
- description: Default value of the rx-sample-delay-ns property.
+ description: |
+ Default value of the rx-sample-delay-ns property.
This value will be used if the property is not explicitly defined
- for a SPI slave device. See below.
+ for a SPI slave device.
+
+ SPI Rx sample delay offset, unit is nanoseconds.
+ The delay from the default sample time before the actual sample of the
+ rxd input signal occurs. The "rx_sample_delay" is an optional feature
+ of the designware controller, and the upper limit is also subject to
+ controller configuration.
patternProperties:
"^.*@[0-9a-f]+$":
@@ -136,19 +144,6 @@ patternProperties:
minimum: 0
maximum: 3
- spi-rx-bus-width:
- const: 1
-
- spi-tx-bus-width:
- const: 1
-
- rx-sample-delay-ns:
- description: SPI Rx sample delay offset, unit is nanoseconds.
- The delay from the default sample time before the actual
- sample of the rxd input signal occurs. The "rx_sample_delay"
- is an optional feature of the designware controller, and the
- upper limit is also subject to controller configuration.
-
unevaluatedProperties: false
required:
diff --git a/Documentation/devicetree/bindings/spi/spi-cadence.yaml b/Documentation/devicetree/bindings/spi/spi-cadence.yaml
index 9787be21318e..64bf4e621142 100644
--- a/Documentation/devicetree/bindings/spi/spi-cadence.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-cadence.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/spi-cadence.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Cadence SPI controller Device Tree Bindings
+title: Cadence SPI controller
maintainers:
- Michal Simek <michal.simek@xilinx.com>
@@ -49,6 +49,13 @@ properties:
enum: [ 0, 1 ]
default: 0
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clock-names
+ - clocks
+
unevaluatedProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/spi/spi-controller.yaml b/Documentation/devicetree/bindings/spi/spi-controller.yaml
index ebb4d5f1cf4f..01042a7f382e 100644
--- a/Documentation/devicetree/bindings/spi/spi-controller.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-controller.yaml
@@ -95,6 +95,22 @@ patternProperties:
type: object
$ref: spi-peripheral-props.yaml
+ properties:
+ spi-3wire:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires 3-wire mode.
+
+ spi-cpha:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires shifted clock phase (CPHA) mode.
+
+ spi-cpol:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ The device requires inverse clock polarity (CPOL) mode.
+
required:
- compatible
- reg
@@ -139,9 +155,9 @@ examples:
};
flash@2 {
- compatible = "jedec,spi-nor";
- spi-max-frequency = <50000000>;
- reg = <2>, <3>;
- stacked-memories = /bits/ 64 <0x10000000 0x10000000>;
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <50000000>;
+ reg = <2>, <3>;
+ stacked-memories = /bits/ 64 <0x10000000 0x10000000>;
};
};
diff --git a/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml b/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
index 1d46877fe46a..8b44284d30c6 100644
--- a/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-fsl-lpspi.yaml
@@ -19,7 +19,9 @@ properties:
- fsl,imx7ulp-spi
- fsl,imx8qxp-spi
- items:
- - const: fsl,imx8ulp-spi
+ - enum:
+ - fsl,imx8ulp-spi
+ - fsl,imx93-spi
- const: fsl,imx7ulp-spi
reg:
maxItems: 1
@@ -37,6 +39,16 @@ properties:
- const: per
- const: ipg
+ dmas:
+ items:
+ - description: TX DMA Channel
+ - description: RX DMA Channel
+
+ dma-names:
+ items:
+ - const: tx
+ - const: rx
+
fsl,spi-only-use-cs1-sel:
description:
spi common code does not support use of CS signals discontinuously.
diff --git a/Documentation/devicetree/bindings/spi/spi-mt7621.txt b/Documentation/devicetree/bindings/spi/spi-mt7621.txt
deleted file mode 100644
index d5baec0fa56e..000000000000
--- a/Documentation/devicetree/bindings/spi/spi-mt7621.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-Binding for MTK SPI controller (MT7621 MIPS)
-
-Required properties:
-- compatible: Should be one of the following:
- - "ralink,mt7621-spi": for mt7621/mt7628/mt7688 platforms
-- #address-cells: should be 1.
-- #size-cells: should be 0.
-- reg: Address and length of the register set for the device
-- resets: phandle to the reset controller asserting this device in
- reset
- See ../reset/reset.txt for details.
-
-Optional properties:
-- cs-gpios: see spi-bus.txt.
-
-Example:
-
-- SoC Specific Portion:
-spi0: spi@b00 {
- compatible = "ralink,mt7621-spi";
- reg = <0xb00 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- resets = <&rstctrl 18>;
- reset-names = "spi";
-};
diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
index 5e32928c4fc3..dca677f9e1b9 100644
--- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml
@@ -16,7 +16,7 @@ description:
their own separate schema that should be referenced from here.
maintainers:
- - Pratyush Yadav <p.yadav@ti.com>
+ - Mark Brown <broonie@kernel.org>
properties:
reg:
@@ -29,21 +29,6 @@ properties:
description:
Chip select used by the device.
- spi-3wire:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires 3-wire mode.
-
- spi-cpha:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires shifted clock phase (CPHA) mode.
-
- spi-cpol:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The device requires inverse clock polarity (CPOL) mode.
-
spi-cs-high:
$ref: /schemas/types.yaml#/definitions/flag
description:
@@ -71,6 +56,11 @@ properties:
description:
Delay, in microseconds, after a read transfer.
+ rx-sample-delay-ns:
+ description: SPI Rx sample delay offset, unit is nanoseconds.
+ The delay from the default sample time before the actual
+ sample of the rxd input signal occurs.
+
spi-tx-bus-width:
description:
Bus width to the SPI bus used for write transfers.
@@ -112,5 +102,6 @@ properties:
allOf:
- $ref: cdns,qspi-nor-peripheral-props.yaml#
- $ref: samsung,spi-peripheral-props.yaml#
+ - $ref: nvidia,tegra210-quad-peripheral-props.yaml#
additionalProperties: true
diff --git a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
index 52a78a2e362e..66e49947b703 100644
--- a/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-rockchip.yaml
@@ -27,6 +27,7 @@ properties:
- items:
- enum:
- rockchip,px30-spi
+ - rockchip,rk3128-spi
- rockchip,rk3188-spi
- rockchip,rk3288-spi
- rockchip,rk3308-spi
@@ -34,6 +35,7 @@ properties:
- rockchip,rk3368-spi
- rockchip,rk3399-spi
- rockchip,rk3568-spi
+ - rockchip,rk3588-spi
- rockchip,rv1126-spi
- const: rockchip,rk3066-spi
@@ -80,6 +82,9 @@ properties:
where the "sleep" configuration may describe the state
the pins should be in during system suspend.
+ power-domains:
+ maxItems: 1
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/spi/spi-xilinx.yaml b/Documentation/devicetree/bindings/spi/spi-xilinx.yaml
index 03e5dca7e933..bbb735603f29 100644
--- a/Documentation/devicetree/bindings/spi/spi-xilinx.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-xilinx.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/spi-xilinx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx SPI controller Device Tree Bindings
+title: Xilinx SPI controller
maintainers:
- Michal Simek <michal.simek@xilinx.com>
diff --git a/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml b/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml
index ea72c8001256..6bf0edc57f4a 100644
--- a/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml
+++ b/Documentation/devicetree/bindings/spi/spi-zynqmp-qspi.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spi/spi-zynqmp-qspi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx Zynq UltraScale+ MPSoC GQSPI controller Device Tree Bindings
+title: Xilinx Zynq UltraScale+ MPSoC GQSPI controller
maintainers:
- Michal Simek <michal.simek@xilinx.com>
@@ -30,6 +30,13 @@ properties:
clocks:
maxItems: 2
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clock-names
+ - clocks
+
unevaluatedProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/spi/spi_atmel.txt b/Documentation/devicetree/bindings/spi/spi_atmel.txt
deleted file mode 100644
index 5bb4a8f1df7a..000000000000
--- a/Documentation/devicetree/bindings/spi/spi_atmel.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-Atmel SPI device
-
-Required properties:
-- compatible : should be "atmel,at91rm9200-spi" or "microchip,sam9x60-spi".
-- reg: Address and length of the register set for the device
-- interrupts: Should contain spi interrupt
-- cs-gpios: chipselects (optional for SPI controller version >= 2 with the
- Chip Select Active After Transfer feature).
-- clock-names: tuple listing input clock names.
- Required elements: "spi_clk"
-- clocks: phandles to input clocks.
-
-Optional properties:
-- atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
- capable SPI controllers.
-
-Example:
-
-spi1: spi@fffcc000 {
- compatible = "atmel,at91rm9200-spi";
- reg = <0xfffcc000 0x4000>;
- interrupts = <13 4 5>;
- #address-cells = <1>;
- #size-cells = <0>;
- clocks = <&spi1_clk>;
- clock-names = "spi_clk";
- cs-gpios = <&pioB 3 0>;
- atmel,fifo-size = <32>;
-
- mmc-slot@0 {
- compatible = "mmc-spi-slot";
- reg = <0>;
- gpios = <&pioC 4 0>; /* CD */
- spi-max-frequency = <25000000>;
- };
-};
diff --git a/Documentation/devicetree/bindings/spmi/mtk,spmi-mtk-pmif.yaml b/Documentation/devicetree/bindings/spmi/mtk,spmi-mtk-pmif.yaml
index 2445c5e0b0ef..abcbbe13723f 100644
--- a/Documentation/devicetree/bindings/spmi/mtk,spmi-mtk-pmif.yaml
+++ b/Documentation/devicetree/bindings/spmi/mtk,spmi-mtk-pmif.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/spmi/mtk,spmi-mtk-pmif.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mediatek SPMI Controller Device Tree Bindings
+title: Mediatek SPMI Controller
maintainers:
- Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
diff --git a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
index 1c426c211e36..98a7dc7f467d 100644
--- a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
+++ b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/sram/allwinner,sun4i-a10-system-control.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 System Control Device Tree Bindings
+title: Allwinner A10 System Control
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -24,32 +24,31 @@ properties:
compatible:
oneOf:
- - const: allwinner,sun4i-a10-sram-controller
+ - enum:
+ - allwinner,sun4i-a10-sram-controller
+ - allwinner,sun50i-a64-sram-controller
deprecated: true
- - const: allwinner,sun4i-a10-system-control
- - const: allwinner,sun5i-a13-system-control
+ - enum:
+ - allwinner,sun4i-a10-system-control
+ - allwinner,sun5i-a13-system-control
+ - allwinner,sun8i-a23-system-control
+ - allwinner,sun8i-h3-system-control
+ - allwinner,sun20i-d1-system-control
+ - allwinner,sun50i-a64-system-control
+ - allwinner,sun50i-h5-system-control
+ - allwinner,sun50i-h616-system-control
- items:
- - const: allwinner,sun7i-a20-system-control
+ - enum:
+ - allwinner,suniv-f1c100s-system-control
+ - allwinner,sun7i-a20-system-control
+ - allwinner,sun8i-r40-system-control
- const: allwinner,sun4i-a10-system-control
- - const: allwinner,sun8i-a23-system-control
- - const: allwinner,sun8i-h3-system-control
- items:
- const: allwinner,sun8i-v3s-system-control
- const: allwinner,sun8i-h3-system-control
- items:
- - const: allwinner,sun8i-r40-system-control
- - const: allwinner,sun4i-a10-system-control
- - const: allwinner,sun50i-a64-sram-controller
- deprecated: true
- - const: allwinner,sun50i-a64-system-control
- - const: allwinner,sun50i-h5-system-control
- - items:
- const: allwinner,sun50i-h6-system-control
- const: allwinner,sun50i-a64-system-control
- - items:
- - const: allwinner,suniv-f1c100s-system-control
- - const: allwinner,sun4i-a10-system-control
- - const: allwinner,sun50i-h616-system-control
reg:
maxItems: 1
@@ -76,43 +75,26 @@ patternProperties:
- const: allwinner,sun4i-a10-sram-d
- const: allwinner,sun50i-a64-sram-c
- items:
- - const: allwinner,sun5i-a13-sram-a3-a4
- - const: allwinner,sun4i-a10-sram-a3-a4
- - items:
- - const: allwinner,sun7i-a20-sram-a3-a4
+ - enum:
+ - allwinner,sun5i-a13-sram-a3-a4
+ - allwinner,sun7i-a20-sram-a3-a4
- const: allwinner,sun4i-a10-sram-a3-a4
- items:
- - const: allwinner,sun5i-a13-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun7i-a20-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun8i-a23-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun8i-h3-sram-c1
+ - enum:
+ - allwinner,sun5i-a13-sram-c1
+ - allwinner,sun7i-a20-sram-c1
+ - allwinner,sun8i-a23-sram-c1
+ - allwinner,sun8i-h3-sram-c1
+ - allwinner,sun8i-r40-sram-c1
+ - allwinner,sun50i-a64-sram-c1
+ - allwinner,sun50i-h5-sram-c1
+ - allwinner,sun50i-h6-sram-c1
- const: allwinner,sun4i-a10-sram-c1
- items:
- - const: allwinner,sun8i-r40-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun50i-a64-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun50i-h5-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun50i-h6-sram-c1
- - const: allwinner,sun4i-a10-sram-c1
- - items:
- - const: allwinner,sun5i-a13-sram-d
- - const: allwinner,sun4i-a10-sram-d
- - items:
- - const: allwinner,sun7i-a20-sram-d
- - const: allwinner,sun4i-a10-sram-d
- - items:
- - const: allwinner,suniv-f1c100s-sram-d
+ - enum:
+ - allwinner,suniv-f1c100s-sram-d
+ - allwinner,sun5i-a13-sram-d
+ - allwinner,sun7i-a20-sram-d
- const: allwinner,sun4i-a10-sram-d
- items:
- const: allwinner,sun50i-h6-sram-c
diff --git a/Documentation/devicetree/bindings/sram/qcom,imem.yaml b/Documentation/devicetree/bindings/sram/qcom,imem.yaml
new file mode 100644
index 000000000000..e9199190198d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sram/qcom,imem.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sram/qcom,imem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm IMEM memory region
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ Qualcomm IMEM is dedicated memory region for various debug features and DMA
+ transactions.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,apq8064-imem
+ - qcom,msm8974-imem
+ - qcom,qcs404-imem
+ - qcom,sc7180-imem
+ - qcom,sc7280-imem
+ - qcom,sdm630-imem
+ - qcom,sdm845-imem
+ - qcom,sdx55-imem
+ - const: syscon
+ - const: simple-mfd
+
+ reg:
+ maxItems: 1
+
+ ranges: true
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ reboot-mode:
+ $ref: /schemas/power/reset/syscon-reboot-mode.yaml#
+
+patternProperties:
+ "^pil-reloc@[0-9a-f]+$":
+ $ref: /schemas/remoteproc/qcom,pil-info.yaml#
+ description: Peripheral image loader relocation region
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ sram@146bf000 {
+ compatible = "qcom,sdm845-imem", "syscon", "simple-mfd";
+ reg = <0 0x146bf000 0 0x1000>;
+ ranges = <0 0 0x146bf000 0x1000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ pil-reloc@94c {
+ compatible = "qcom,pil-reloc-info";
+ reg = <0x94c 0xc8>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sram/qcom,ocmem.yaml b/Documentation/devicetree/bindings/sram/qcom,ocmem.yaml
index 930188bc5e6a..071f2d676196 100644
--- a/Documentation/devicetree/bindings/sram/qcom,ocmem.yaml
+++ b/Documentation/devicetree/bindings/sram/qcom,ocmem.yaml
@@ -72,10 +72,10 @@ patternProperties:
examples:
- |
- #include <dt-bindings/clock/qcom,rpmcc.h>
- #include <dt-bindings/clock/qcom,mmcc-msm8974.h>
+ #include <dt-bindings/clock/qcom,rpmcc.h>
+ #include <dt-bindings/clock/qcom,mmcc-msm8974.h>
- ocmem: ocmem@fdd00000 {
+ sram@fdd00000 {
compatible = "qcom,msm8974-ocmem";
reg = <0xfdd00000 0x2000>,
@@ -93,6 +93,6 @@ examples:
ranges = <0 0xfec00000 0x100000>;
gmu-sram@0 {
- reg = <0x0 0x100000>;
+ reg = <0x0 0x100000>;
};
- };
+ };
diff --git a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
index 6e0b110153b0..fbd4212285e2 100644
--- a/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
+++ b/Documentation/devicetree/bindings/thermal/allwinner,sun8i-a83t-ths.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/thermal/allwinner,sun8i-a83t-ths.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner SUN8I Thermal Controller Device Tree Bindings
+title: Allwinner SUN8I Thermal Controller
maintainers:
- Vasily Khoruzhick <anarsoul@gmail.com>
diff --git a/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
index 1ab5070c751d..89a2c32c0ab2 100644
--- a/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/brcm,avs-ro-thermal.yaml
@@ -16,7 +16,7 @@ description: |+
- compatible: Should be one of the following:
"brcm,bcm2711-avs-monitor", "syscon", "simple-mfd"
- Refer to the the bindings described in
+ Refer to the bindings described in
Documentation/devicetree/bindings/mfd/syscon.yaml
properties:
diff --git a/Documentation/devicetree/bindings/thermal/fsl,scu-thermal.yaml b/Documentation/devicetree/bindings/thermal/fsl,scu-thermal.yaml
new file mode 100644
index 000000000000..f9e4b3c8d0ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/fsl,scu-thermal.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/fsl,scu-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Thermal bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+ - $ref: thermal-sensor.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: fsl,imx8qxp-sc-thermal
+ - const: fsl,imx-sc-thermal
+
+ '#thermal-sensor-cells':
+ const: 1
+
+required:
+ - compatible
+ - '#thermal-sensor-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ thermal-sensor {
+ compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
+ #thermal-sensor-cells = <1>;
+ };
diff --git a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
index db880e7ed713..aea4a2a178b9 100644
--- a/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
+++ b/Documentation/devicetree/bindings/thermal/nvidia,tegra124-soctherm.txt
@@ -96,7 +96,7 @@ critical trip point is reported back to the thermal framework to implement
software shutdown.
- the "hot" type trip points will be set to SOC_THERM hardware as the throttle
-temperature. Once the the temperature of this thermal zone is higher
+temperature. Once the temperature of this thermal zone is higher
than it, it will trigger the HW throttle event.
Example :
diff --git a/Documentation/devicetree/bindings/thermal/qcom,spmi-temp-alarm.yaml b/Documentation/devicetree/bindings/thermal/qcom,spmi-temp-alarm.yaml
new file mode 100644
index 000000000000..5f08b6e59b8a
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/qcom,spmi-temp-alarm.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/qcom,spmi-temp-alarm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QPNP PMIC Temperature Alarm
+
+maintainers:
+ - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+ QPNP temperature alarm peripherals are found inside of Qualcomm PMIC chips
+ that utilize the Qualcomm SPMI implementation. These peripherals provide an
+ interrupt signal and status register to identify high PMIC die temperature.
+
+allOf:
+ - $ref: thermal-sensor.yaml#
+
+properties:
+ compatible:
+ const: qcom,spmi-temp-alarm
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ io-channels:
+ items:
+ - description: ADC channel, which reports chip die temperature
+
+ io-channel-names:
+ items:
+ - const: thermal
+
+ '#thermal-sensor-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - '#thermal-sensor-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ pmic {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pm8350_temp_alarm: temperature-sensor@a00 {
+ compatible = "qcom,spmi-temp-alarm";
+ reg = <0xa00>;
+ interrupts = <0x1 0xa 0x0 IRQ_TYPE_EDGE_BOTH>;
+ #thermal-sensor-cells = <0>;
+ };
+ };
+
+ thermal-zones {
+ pm8350_thermal: pm8350c-thermal {
+ polling-delay-passive = <100>;
+ polling-delay = <0>;
+ thermal-sensors = <&pm8350_temp_alarm>;
+
+ trips {
+ pm8350_trip0: trip0 {
+ temperature = <95000>;
+ hysteresis = <0>;
+ type = "passive";
+ };
+
+ pm8350_crit: pm8350c-crit {
+ temperature = <115000>;
+ hysteresis = <0>;
+ type = "critical";
+ };
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-temp-alarm.txt b/Documentation/devicetree/bindings/thermal/qcom-spmi-temp-alarm.txt
deleted file mode 100644
index 2d5b2ad03314..000000000000
--- a/Documentation/devicetree/bindings/thermal/qcom-spmi-temp-alarm.txt
+++ /dev/null
@@ -1,51 +0,0 @@
-Qualcomm QPNP PMIC Temperature Alarm
-
-QPNP temperature alarm peripherals are found inside of Qualcomm PMIC chips
-that utilize the Qualcomm SPMI implementation. These peripherals provide an
-interrupt signal and status register to identify high PMIC die temperature.
-
-Required properties:
-- compatible: Should contain "qcom,spmi-temp-alarm".
-- reg: Specifies the SPMI address.
-- interrupts: PMIC temperature alarm interrupt.
-- #thermal-sensor-cells: Should be 0. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description.
-
-Optional properties:
-- io-channels: Should contain IIO channel specifier for the ADC channel,
- which report chip die temperature.
-- io-channel-names: Should contain "thermal".
-
-Example:
-
- pm8941_temp: thermal-alarm@2400 {
- compatible = "qcom,spmi-temp-alarm";
- reg = <0x2400>;
- interrupts = <0 0x24 0 IRQ_TYPE_EDGE_RISING>;
- #thermal-sensor-cells = <0>;
-
- io-channels = <&pm8941_vadc VADC_DIE_TEMP>;
- io-channel-names = "thermal";
- };
-
- thermal-zones {
- pm8941 {
- polling-delay-passive = <250>;
- polling-delay = <1000>;
-
- thermal-sensors = <&pm8941_temp>;
-
- trips {
- stage1 {
- temperature = <105000>;
- hysteresis = <2000>;
- type = "passive";
- };
- stage2 {
- temperature = <125000>;
- hysteresis = <2000>;
- type = "critical";
- };
- };
- };
- };
-
diff --git a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
index 1368d90da0e8..0f05f5c886c5 100644
--- a/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/rcar-gen3-thermal.yaml
@@ -8,9 +8,9 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
title: Renesas R-Car Gen3 Thermal Sensor
description:
- On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal
- sensors (THS) which are the analog circuits for measuring temperature (Tj)
- inside the LSI.
+ On most R-Car Gen3 and later SoCs, the thermal sensor controllers (TSC)
+ control the thermal sensors (THS) which are the analog circuits for
+ measuring temperature (Tj) inside the LSI.
maintainers:
- Niklas Söderlund <niklas.soderlund@ragnatech.se>
@@ -27,6 +27,7 @@ properties:
- renesas,r8a77965-thermal # R-Car M3-N
- renesas,r8a77980-thermal # R-Car V3H
- renesas,r8a779a0-thermal # R-Car V3U
+ - renesas,r8a779f0-thermal # R-Car S4-8
reg: true
@@ -57,31 +58,38 @@ required:
- "#thermal-sensor-cells"
if:
- not:
- properties:
- compatible:
- contains:
- enum:
- - renesas,r8a779a0-thermal
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,r8a779a0-thermal
then:
properties:
reg:
- minItems: 2
items:
+ - description: TSC0 registers
- description: TSC1 registers
- description: TSC2 registers
- description: TSC3 registers
- required:
- - interrupts
+ - description: TSC4 registers
else:
properties:
reg:
+ minItems: 2
items:
- - description: TSC0 registers
- description: TSC1 registers
- description: TSC2 registers
- description: TSC3 registers
- - description: TSC4 registers
+ if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,r8a779f0-thermal
+ then:
+ required:
+ - interrupts
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/thermal/rcar-thermal.yaml b/Documentation/devicetree/bindings/thermal/rcar-thermal.yaml
index 927de79ab4b5..119998d10ff4 100644
--- a/Documentation/devicetree/bindings/thermal/rcar-thermal.yaml
+++ b/Documentation/devicetree/bindings/thermal/rcar-thermal.yaml
@@ -42,7 +42,7 @@ properties:
description:
Address ranges of the thermal registers. If more then one range is given
the first one must be the common registers followed by each sensor
- according the the datasheet.
+ according to the datasheet.
minItems: 1
maxItems: 4
diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
index 2d34f3ccb257..8d2c6d74b605 100644
--- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
+++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
@@ -214,6 +214,7 @@ patternProperties:
- polling-delay
- polling-delay-passive
- thermal-sensors
+ - trips
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml b/Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml
index 53fd24bdc34e..b3538fac1ad2 100644
--- a/Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/allwinner,sun4i-a10-timer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/timer/allwinner,sun4i-a10-timer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Timer Device Tree Bindings
+title: Allwinner A10 Timer
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -20,6 +20,7 @@ properties:
- allwinner,suniv-f1c100s-timer
- items:
- enum:
+ - allwinner,sun20i-d1-timer
- allwinner,sun50i-a64-timer
- allwinner,sun50i-h6-timer
- allwinner,sun50i-h616-timer
diff --git a/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.yaml b/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.yaml
index 2ecac754e1cd..f1853daec2f9 100644
--- a/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.yaml
+++ b/Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/timer/allwinner,sun5i-a13-hstimer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A13 High-Speed Timer Device Tree Bindings
+title: Allwinner A13 High-Speed Timer
maintainers:
- Chen-Yu Tsai <wens@csie.org>
diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
index df8ce87fd54b..c5fc3b6c8bd0 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer.yaml
@@ -22,16 +22,15 @@ properties:
compatible:
oneOf:
- items:
- - enum:
- - arm,cortex-a15-timer
- - enum:
- - arm,armv7-timer
+ - const: arm,cortex-a15-timer
+ - const: arm,armv7-timer
- items:
- enum:
- arm,armv7-timer
- - items:
- - enum:
- arm,armv8-timer
+ - items:
+ - const: arm,armv8-timer
+ - const: arm,armv7-timer
interrupts:
minItems: 1
diff --git a/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml b/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml
index cd2176cad53a..f6efa48c4256 100644
--- a/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml
+++ b/Documentation/devicetree/bindings/timer/arm,arch_timer_mmio.yaml
@@ -62,6 +62,7 @@ properties:
patternProperties:
'^frame@[0-9a-z]*$':
type: object
+ additionalProperties: false
description: A timer node has up to 8 frame sub-nodes, each with the following properties.
properties:
frame-number:
diff --git a/Documentation/devicetree/bindings/timer/ingenic,tcu.yaml b/Documentation/devicetree/bindings/timer/ingenic,tcu.yaml
index d541cf2067bc..a84fef0fe628 100644
--- a/Documentation/devicetree/bindings/timer/ingenic,tcu.yaml
+++ b/Documentation/devicetree/bindings/timer/ingenic,tcu.yaml
@@ -113,7 +113,9 @@ properties:
patternProperties:
"^watchdog@[a-f0-9]+$":
type: object
- $ref: ../watchdog/watchdog.yaml#
+ $ref: /schemas/watchdog/watchdog.yaml#
+ unevaluatedProperties: false
+
properties:
compatible:
oneOf:
@@ -145,7 +147,9 @@ patternProperties:
"^pwm@[a-f0-9]+$":
type: object
- $ref: ../pwm/pwm.yaml#
+ $ref: /schemas/pwm/pwm.yaml#
+ unevaluatedProperties: false
+
properties:
compatible:
oneOf:
diff --git a/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt b/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
index 6f1f9dba6e88..8bbb6e94508b 100644
--- a/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
+++ b/Documentation/devicetree/bindings/timer/mediatek,mtk-timer.txt
@@ -1,7 +1,8 @@
MediaTek Timers
---------------
-MediaTek SoCs have two different timers on different platforms,
+MediaTek SoCs have different timers on different platforms,
+- CPUX (ARM/ARM64 System Timer)
- GPT (General Purpose Timer)
- SYST (System Timer)
@@ -24,11 +25,15 @@ Required properties:
For those SoCs that use SYST
* "mediatek,mt8183-timer" for MT8183 compatible timers (SYST)
* "mediatek,mt8186-timer" for MT8186 compatible timers (SYST)
+ * "mediatek,mt8188-timer" for MT8188 compatible timers (SYST)
* "mediatek,mt8192-timer" for MT8192 compatible timers (SYST)
* "mediatek,mt8195-timer" for MT8195 compatible timers (SYST)
* "mediatek,mt7629-timer" for MT7629 compatible timers (SYST)
* "mediatek,mt6765-timer" for MT6765 and all above compatible timers (SYST)
+ For those SoCs that use CPUX
+ * "mediatek,mt6795-systimer" for MT6795 compatible timers (CPUX)
+
- reg: Should contain location and length for timer register.
- clocks: Should contain system clock.
diff --git a/Documentation/devicetree/bindings/timer/mstar,msc313e-timer.yaml b/Documentation/devicetree/bindings/timer/mstar,msc313e-timer.yaml
index 03d5dba5d5b3..f118ca423e38 100644
--- a/Documentation/devicetree/bindings/timer/mstar,msc313e-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/mstar,msc313e-timer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/timer/mstar,msc313e-timer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Mstar MSC313e Timer Device Tree Bindings
+title: Mstar MSC313e Timer
maintainers:
- Daniel Palmer <daniel@0x0f.com>
diff --git a/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.yaml b/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.yaml
index 0cbc26a72151..737af78ad70c 100644
--- a/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/nuvoton,npcm7xx-timer.yaml
@@ -8,12 +8,14 @@ title: Nuvoton NPCM7xx timer
maintainers:
- Jonathan Neuschäfer <j.neuschaefer@gmx.net>
+ - Tomer Maimon <tmaimon77@gmail.com>
properties:
compatible:
enum:
- nuvoton,wpcm450-timer # for Hermon WPCM450
- nuvoton,npcm750-timer # for Poleg NPCM750
+ - nuvoton,npcm845-timer # for Arbel NPCM845
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/timer/nvidia,tegra186-timer.yaml b/Documentation/devicetree/bindings/timer/nvidia,tegra186-timer.yaml
new file mode 100644
index 000000000000..db8b5595540f
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/nvidia,tegra186-timer.yaml
@@ -0,0 +1,109 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/timer/nvidia,tegra186-timer.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: NVIDIA Tegra186 timer
+
+maintainers:
+ - Thierry Reding <treding@nvidia.com>
+
+description: >
+ The Tegra timer provides 29-bit timer counters and a 32-bit timestamp
+ counter. Each NV timer selects its timing reference signal from the 1 MHz
+ reference generated by USEC, TSC or either clk_m or OSC. Each TMR can be
+ programmed to generate one-shot, periodic, or watchdog interrupts.
+
+
+properties:
+ compatible:
+ oneOf:
+ - const: nvidia,tegra186-timer
+ description: >
+ The Tegra186 timer provides ten 29-bit timer counters.
+ - const: nvidia,tegra234-timer
+ description: >
+ The Tegra234 timer provides sixteen 29-bit timer counters.
+
+ reg:
+ maxItems: 1
+
+ interrupts: true
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra186-timer
+ then:
+ properties:
+ interrupts:
+ maxItems: 10
+ description: >
+ One per each timer channels 0 through 9.
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: nvidia,tegra234-timer
+ then:
+ properties:
+ interrupts:
+ maxItems: 16
+ description: >
+ One per each timer channels 0 through 15.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ timer@3010000 {
+ compatible = "nvidia,tegra186-timer";
+ reg = <0x03010000 0x000e0000>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ timer@2080000 {
+ compatible = "nvidia,tegra234-timer";
+ reg = <0x02080000 0x00121000>;
+ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ };
diff --git a/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml b/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml
index 830211c55b4a..2b9653dafab8 100644
--- a/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/nxp,sysctr-timer.yaml
@@ -32,6 +32,10 @@ properties:
clock-names:
const: per
+ nxp,no-divider:
+ description: if present, means there is no internal base clk divider.
+ type: boolean
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.yaml b/Documentation/devicetree/bindings/timer/renesas,cmt.yaml
index 53dd6d9f518f..bde6c9b66bf4 100644
--- a/Documentation/devicetree/bindings/timer/renesas,cmt.yaml
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.yaml
@@ -80,7 +80,6 @@ properties:
- renesas,r8a77980-cmt0 # 32-bit CMT0 on R-Car V3H
- renesas,r8a77990-cmt0 # 32-bit CMT0 on R-Car E3
- renesas,r8a77995-cmt0 # 32-bit CMT0 on R-Car D3
- - renesas,r8a779a0-cmt0 # 32-bit CMT0 on R-Car V3U
- const: renesas,rcar-gen3-cmt0 # 32-bit CMT0 on R-Car Gen3 and RZ/G2
- items:
@@ -97,9 +96,20 @@ properties:
- renesas,r8a77980-cmt1 # 48-bit CMT on R-Car V3H
- renesas,r8a77990-cmt1 # 48-bit CMT on R-Car E3
- renesas,r8a77995-cmt1 # 48-bit CMT on R-Car D3
- - renesas,r8a779a0-cmt1 # 48-bit CMT on R-Car V3U
- const: renesas,rcar-gen3-cmt1 # 48-bit CMT on R-Car Gen3 and RZ/G2
+ - items:
+ - enum:
+ - renesas,r8a779a0-cmt0 # 32-bit CMT0 on R-Car V3U
+ - renesas,r8a779f0-cmt0 # 32-bit CMT0 on R-Car S4-8
+ - const: renesas,rcar-gen4-cmt0 # 32-bit CMT0 on R-Car Gen4
+
+ - items:
+ - enum:
+ - renesas,r8a779a0-cmt1 # 48-bit CMT on R-Car V3U
+ - renesas,r8a779f0-cmt1 # 48-bit CMT on R-Car S4-8
+ - const: renesas,rcar-gen4-cmt1 # 48-bit CMT on R-Car Gen4
+
reg:
maxItems: 1
@@ -135,6 +145,7 @@ allOf:
enum:
- renesas,rcar-gen2-cmt0
- renesas,rcar-gen3-cmt0
+ - renesas,rcar-gen4-cmt0
then:
properties:
interrupts:
@@ -148,6 +159,7 @@ allOf:
enum:
- renesas,rcar-gen2-cmt1
- renesas,rcar-gen3-cmt1
+ - renesas,rcar-gen4-cmt1
then:
properties:
interrupts:
diff --git a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
index c57169118b68..60f4c059bcff 100644
--- a/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
+++ b/Documentation/devicetree/bindings/timer/renesas,tmu.yaml
@@ -37,6 +37,7 @@ properties:
- renesas,tmu-r8a77990 # R-Car E3
- renesas,tmu-r8a77995 # R-Car D3
- renesas,tmu-r8a779a0 # R-Car V3U
+ - renesas,tmu-r8a779f0 # R-Car S4-8
- const: renesas,tmu
reg:
diff --git a/Documentation/devicetree/bindings/timer/rockchip,rk-timer.yaml b/Documentation/devicetree/bindings/timer/rockchip,rk-timer.yaml
index 5d157d87dad5..dc3bc1e62fe9 100644
--- a/Documentation/devicetree/bindings/timer/rockchip,rk-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/rockchip,rk-timer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/timer/rockchip,rk-timer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Rockchip Timer Device Tree Bindings
+title: Rockchip Timer
maintainers:
- Daniel Lezcano <daniel.lezcano@linaro.org>
diff --git a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml
index 9c81d00b12e0..829bd2227f7c 100644
--- a/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml
+++ b/Documentation/devicetree/bindings/timer/samsung,exynos4210-mct.yaml
@@ -25,6 +25,7 @@ properties:
- samsung,exynos4412-mct
- items:
- enum:
+ - axis,artpec8-mct
- samsung,exynos3250-mct
- samsung,exynos5250-mct
- samsung,exynos5260-mct
@@ -45,6 +46,19 @@ properties:
reg:
maxItems: 1
+ samsung,frc-shared:
+ type: boolean
+ description: |
+ Indicates that the hardware requires that this processor share the
+ free-running counter with a different (main) processor.
+
+ samsung,local-timers:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 16
+ description: |
+ List of indices of local timers usable from this processor.
+
interrupts:
description: |
Interrupts should be put in specific order. This is, the local timer
@@ -75,6 +89,17 @@ required:
allOf:
- if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - axis,artpec8-mct
+ then:
+ properties:
+ samsung,local-timers: false
+ samsung,frc-shared: false
+ - if:
properties:
compatible:
contains:
@@ -101,6 +126,7 @@ allOf:
compatible:
contains:
enum:
+ - axis,artpec8-mct
- samsung,exynos5260-mct
- samsung,exynos5420-mct
- samsung,exynos5433-mct
diff --git a/Documentation/devicetree/bindings/timer/st,nomadik-mtu.yaml b/Documentation/devicetree/bindings/timer/st,nomadik-mtu.yaml
new file mode 100644
index 000000000000..901848d298ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/st,nomadik-mtu.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2022 Linaro Ltd.
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/timer/st,nomadik-mtu.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: ST Microelectronics Nomadik Multi-Timer Unit MTU Timer
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: This timer is found in the ST Microelectronics Nomadik
+ SoCs STn8800, STn8810 and STn8815 as well as in ST-Ericsson DB8500.
+
+properties:
+ compatible:
+ items:
+ - const: st,nomadik-mtu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description: The first clock named TIMCLK clocks the actual timers and
+ the second clock clocks the digital interface to the interconnect.
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: timclk
+ - const: apb_pclk
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/mfd/dbx500-prcmu.h>
+ timer@a03c6000 {
+ compatible = "st,nomadik-mtu";
+ reg = <0xa03c6000 0x1000>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+
+ clocks = <&prcmu_clk PRCMU_TIMCLK>, <&prcc_pclk 6 6>;
+ clock-names = "timclk", "apb_pclk";
+ };
diff --git a/Documentation/devicetree/bindings/timer/ti,timer-dm.yaml b/Documentation/devicetree/bindings/timer/ti,timer-dm.yaml
index e32df21e63a0..acbb6f8997ee 100644
--- a/Documentation/devicetree/bindings/timer/ti,timer-dm.yaml
+++ b/Documentation/devicetree/bindings/timer/ti,timer-dm.yaml
@@ -51,6 +51,11 @@ properties:
- const: timer_sys_ck
minItems: 1
+ power-domains:
+ description:
+ Power domain if available
+ maxItems: 1
+
interrupts:
description:
Interrupt if available. The timer PWM features may be usable
@@ -94,13 +99,15 @@ additionalProperties: false
allOf:
- if:
- not:
- properties:
- compatible:
- contains:
- const: ti,am654-timer
+ properties:
+ compatible:
+ contains:
+ const: ti,am654-timer
then:
required:
+ - power-domains
+ else:
+ required:
- interrupts
- if:
diff --git a/Documentation/devicetree/bindings/timer/xlnx,xps-timer.yaml b/Documentation/devicetree/bindings/timer/xlnx,xps-timer.yaml
index dd168d41d2e0..b1597db04263 100644
--- a/Documentation/devicetree/bindings/timer/xlnx,xps-timer.yaml
+++ b/Documentation/devicetree/bindings/timer/xlnx,xps-timer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/timer/xlnx,xps-timer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Xilinx LogiCORE IP AXI Timer Device Tree Binding
+title: Xilinx LogiCORE IP AXI Timer
maintainers:
- Sean Anderson <sean.anderson@seco.com>
diff --git a/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml b/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml
index 6456515c3d26..5142d6d4fc0a 100644
--- a/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml
+++ b/Documentation/devicetree/bindings/timestamp/hte-consumer.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/timestamp/hte-consumer.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: HTE Consumer Device Tree Bindings
+title: HTE Consumer
maintainers:
- Dipen Patel <dipenp@nvidia.com>
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 6aafa71806a3..61746755c107 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -41,6 +41,8 @@ properties:
- adi,adp5585-02
# Analog Devices ADP5589 Keypad Decoder and I/O Expansion
- adi,adp5589
+ # Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher
+ - adi,lt7182s
# AMS iAQ-Core VOC Sensor
- ams,iaq-core
# i2c serial eeprom (24cxx)
@@ -93,8 +95,6 @@ properties:
- dh,dhcom-board
# DA9053: flexible system level PMIC with multicore support
- dlg,da9053
- # DA9063: system PMIC for quad-core application processors
- - dlg,da9063
# DMARD05: 3-axis I2C Accelerometer
- domintech,dmard05
# DMARD06: 3-axis I2C Accelerometer
@@ -139,6 +139,8 @@ properties:
- infineon,slb9635tt
# Infineon SLB9645 I2C TPM (new protocol, max 400khz)
- infineon,slb9645tt
+ # Infineon SLB9673 I2C TPM 2.0
+ - infineon,slb9673
# Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor
- infineon,tlv493d-a1b6
# Infineon Multi-phase Digital VR Controller xdpe11280
diff --git a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
index dcd32c10205a..f2d6298d926c 100644
--- a/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/qcom,ufs.yaml
@@ -26,6 +26,7 @@ properties:
- qcom,msm8994-ufshc
- qcom,msm8996-ufshc
- qcom,msm8998-ufshc
+ - qcom,sc8280xp-ufshc
- qcom,sdm845-ufshc
- qcom,sm6350-ufshc
- qcom,sm8150-ufshc
@@ -98,6 +99,7 @@ allOf:
contains:
enum:
- qcom,msm8998-ufshc
+ - qcom,sc8280xp-ufshc
- qcom,sm8250-ufshc
- qcom,sm8350-ufshc
- qcom,sm8450-ufshc
diff --git a/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml b/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml
new file mode 100644
index 000000000000..f04f9f61fa9f
--- /dev/null
+++ b/Documentation/devicetree/bindings/ufs/renesas,ufs.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/ufs/renesas,ufs.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car UFS Host Controller
+
+maintainers:
+ - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
+
+allOf:
+ - $ref: ufs-common.yaml
+
+properties:
+ compatible:
+ const: renesas,r8a779f0-ufs
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: fck
+ - const: ref_clk
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - power-domains
+ - resets
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/r8a779f0-cpg-mssr.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/power/r8a779f0-sysc.h>
+
+ ufs: ufs@e686000 {
+ compatible = "renesas,r8a779f0-ufs";
+ reg = <0xe6860000 0x100>;
+ interrupts = <GIC_SPI 235 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 1514>, <&ufs30_clk>;
+ clock-names = "fck", "ref_clk";
+ freq-table-hz = <200000000 200000000>, <38400000 38400000>;
+ power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+ resets = <&cpg 1514>;
+ };
diff --git a/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml b/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
index c949eb617313..a9988798898d 100644
--- a/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/samsung,exynos-ufs.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/ufs/samsung,exynos-ufs.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Samsung SoC series UFS host controller Device Tree Bindings
+title: Samsung SoC series UFS host controller
maintainers:
- Alim Akhtar <alim.akhtar@samsung.com>
@@ -21,6 +21,7 @@ properties:
- samsung,exynos7-ufs
- samsung,exynosautov9-ufs
- samsung,exynosautov9-ufs-vh
+ - tesla,fsd-ufs
reg:
items:
diff --git a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml
index 933fa356d2ce..8992eff6ce38 100644
--- a/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml
+++ b/Documentation/devicetree/bindings/usb/allwinner,sun4i-a10-musb.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/allwinner,sun4i-a10-musb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 mUSB OTG Controller Device Tree Bindings
+title: Allwinner A10 mUSB OTG Controller
maintainers:
- Chen-Yu Tsai <wens@csie.org>
@@ -20,6 +20,7 @@ properties:
- items:
- enum:
- allwinner,sun8i-a83t-musb
+ - allwinner,sun20i-d1-musb
- allwinner,sun50i-h6-musb
- const: allwinner,sun8i-a33-musb
- items:
diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
index e349fa5de606..daf2a859418d 100644
--- a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
+++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Amlogic Meson G12A DWC3 USB SoC Controller Glue
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
description: |
The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
diff --git a/Documentation/devicetree/bindings/usb/analogix,anx7411.yaml b/Documentation/devicetree/bindings/usb/analogix,anx7411.yaml
new file mode 100644
index 000000000000..0e72c08e6566
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/analogix,anx7411.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/analogix,anx7411.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analogix ANX7411 Type-C controller bindings
+
+maintainers:
+ - Xin Ji <xji@analogixsemi.com>
+
+properties:
+ compatible:
+ enum:
+ - analogix,anx7411
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ connector:
+ type: object
+ $ref: ../connector/usb-connector.yaml
+ unevaluatedProperties: false
+
+ description:
+ Properties for usb c connector.
+
+ properties:
+ compatible:
+ const: usb-c-connector
+
+ power-role: true
+
+ data-role: true
+
+ try-power-role: true
+
+ required:
+ - compatible
+
+required:
+ - compatible
+ - reg
+ - connector
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ typec@2c {
+ compatible = "analogix,anx7411";
+ reg = <0x2c>;
+ interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpio0>;
+
+ typec_con: connector {
+ compatible = "usb-c-connector";
+ power-role = "dual";
+ data-role = "dual";
+ try-power-role = "source";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ typec_con_ep: endpoint {
+ remote-endpoint = <&usbotg_hs_ep>;
+ };
+ };
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml b/Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml
new file mode 100644
index 000000000000..c3b6be3d8002
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/aspeed,ast2600-udc.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 Facebook Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/aspeed,ast2600-udc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASPEED USB 2.0 Device Controller
+
+maintainers:
+ - Neal Liu <neal_liu@aspeedtech.com>
+
+description: |+
+ The ASPEED USB 2.0 Device Controller implements 1 control endpoint and
+ 4 generic endpoints for AST260x.
+
+ Supports independent DMA channel for each generic endpoint.
+ Supports 32/256 stages descriptor mode for all generic endpoints.
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2600-udc
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/aspeed-clock.h>
+ udc: usb@1e6a2000 {
+ compatible = "aspeed,ast2600-udc";
+ reg = <0x1e6a2000 0x300>;
+ interrupts = <9>;
+ clocks = <&syscon ASPEED_CLK_GATE_USBPORT2CLK>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usb2bd_default>;
+ };
diff --git a/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml b/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml
index 8b019ac05bbe..a86bcd95100e 100644
--- a/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml
+++ b/Documentation/devicetree/bindings/usb/aspeed,usb-vhub.yaml
@@ -67,6 +67,7 @@ properties:
vhub-strings:
type: object
+ additionalProperties: false
properties:
'#address-cells':
@@ -78,6 +79,7 @@ properties:
patternProperties:
'^string@[0-9a-f]+$':
type: object
+ additionalProperties: false
description: string descriptors of the specific language
properties:
diff --git a/Documentation/devicetree/bindings/usb/atmel-usb.txt b/Documentation/devicetree/bindings/usb/atmel-usb.txt
index f512f0290728..12183ef47ee4 100644
--- a/Documentation/devicetree/bindings/usb/atmel-usb.txt
+++ b/Documentation/devicetree/bindings/usb/atmel-usb.txt
@@ -87,6 +87,9 @@ Required properties:
"atmel,at91sam9g45-udc"
"atmel,sama5d3-udc"
"microchip,sam9x60-udc"
+ "microchip,lan9662-udc"
+ For "microchip,lan9662-udc" the fallback "atmel,sama5d3-udc"
+ is required.
- reg: Address and length of the register set for the device
- interrupts: Should contain usba interrupt
- clocks: Should reference the peripheral and host clocks
diff --git a/Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml b/Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
index 2a9acf2b5a64..ad075407d85e 100644
--- a/Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/brcm,bcm7445-ehci.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/brcm,bcm7445-ehci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom STB USB EHCI Controller Device Tree Bindings
+title: Broadcom STB USB EHCI Controller
allOf:
- $ref: "usb-hcd.yaml"
diff --git a/Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml b/Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
index d4618d15ecc1..5cc81ced589d 100644
--- a/Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
+++ b/Documentation/devicetree/bindings/usb/brcm,usb-pinmap.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/brcm,usb-pinmap.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Broadcom USB pin map Controller Device Tree Bindings
+title: Broadcom USB pin map Controller
maintainers:
- Al Cooper <alcooperx@gmail.com>
diff --git a/Documentation/devicetree/bindings/usb/dwc2.yaml b/Documentation/devicetree/bindings/usb/dwc2.yaml
index 8d22a9843ba5..dc4988c0009c 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.yaml
+++ b/Documentation/devicetree/bindings/usb/dwc2.yaml
@@ -11,6 +11,7 @@ maintainers:
allOf:
- $ref: usb-drd.yaml#
+ - $ref: usb-hcd.yaml#
properties:
compatible:
@@ -31,6 +32,7 @@ properties:
- enum:
- rockchip,px30-usb
- rockchip,rk3036-usb
+ - rockchip,rk3128-usb
- rockchip,rk3188-usb
- rockchip,rk3228-usb
- rockchip,rk3288-usb
@@ -161,6 +163,8 @@ properties:
property is used.
$ref: /schemas/graph.yaml#/properties/port
+ tpl-support: true
+
dependencies:
port: [ usb-role-switch ]
role-switch-default-mode: [ usb-role-switch ]
diff --git a/Documentation/devicetree/bindings/usb/faraday,fotg210.txt b/Documentation/devicetree/bindings/usb/faraday,fotg210.txt
deleted file mode 100644
index 06a2286e2054..000000000000
--- a/Documentation/devicetree/bindings/usb/faraday,fotg210.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-Faraday FOTG Host controller
-
-This OTG-capable USB host controller is found in Cortina Systems
-Gemini and other SoC products.
-
-Required properties:
-- compatible: should be one of:
- "faraday,fotg210"
- "cortina,gemini-usb", "faraday,fotg210"
-- reg: should contain one register range i.e. start and length
-- interrupts: description of the interrupt line
-
-Optional properties:
-- clocks: should contain the IP block clock
-- clock-names: should be "PCLK" for the IP block clock
-
-Required properties for "cortina,gemini-usb" compatible:
-- syscon: a phandle to the system controller to access PHY registers
-
-Optional properties for "cortina,gemini-usb" compatible:
-- cortina,gemini-mini-b: boolean property that indicates that a Mini-B
- OTG connector is in use
-- wakeup-source: see power/wakeup-source.txt
-
-Example for Gemini:
-
-usb@68000000 {
- compatible = "cortina,gemini-usb", "faraday,fotg210";
- reg = <0x68000000 0x1000>;
- interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&cc 12>;
- clock-names = "PCLK";
- syscon = <&syscon>;
- wakeup-source;
-};
diff --git a/Documentation/devicetree/bindings/usb/faraday,fotg210.yaml b/Documentation/devicetree/bindings/usb/faraday,fotg210.yaml
new file mode 100644
index 000000000000..c69bbfbcf733
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/faraday,fotg210.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2022 Linaro Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/faraday,fotg210.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Faraday Technology FOTG210 HS OTG USB 2.0 controller Bindings
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+allOf:
+ - $ref: usb-drd.yaml#
+ - $ref: usb-hcd.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: faraday,fotg210
+ - items:
+ - const: cortina,gemini-usb
+ - const: faraday,fotg210
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: PCLK
+
+ resets:
+ maxItems: 1
+
+ syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: a phandle to the global Gemini system controller on
+ Gemini systems
+
+ dr_mode: true
+
+ phys:
+ maxItems: 1
+
+ phy-names:
+ const: usb2-phy
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/clock/cortina,gemini-clock.h>
+ #include <dt-bindings/reset/cortina,gemini-reset.h>
+ usb0: usb@68000000 {
+ compatible = "cortina,gemini-usb", "faraday,fotg210";
+ reg = <0x68000000 0x1000>;
+ interrupts = <10 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&syscon GEMINI_RESET_USB0>;
+ clocks = <&syscon GEMINI_CLK_GATE_USB0>;
+ clock-names = "PCLK";
+ syscon = <&syscon>;
+ dr_mode = "host";
+ };
diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
index 1e84e1b7ab27..c5f629c5bc61 100644
--- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/generic-ehci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: USB EHCI Controller Device Tree Bindings
+title: USB EHCI Controller
maintainers:
- Greg Kroah-Hartman <gregkh@linuxfoundation.org>
@@ -38,6 +38,7 @@ properties:
- allwinner,sun8i-h3-ehci
- allwinner,sun8i-r40-ehci
- allwinner,sun9i-a80-ehci
+ - allwinner,sun20i-d1-ehci
- aspeed,ast2400-ehci
- aspeed,ast2500-ehci
- aspeed,ast2600-ehci
@@ -130,11 +131,6 @@ properties:
Set this flag to indicate that the hardware sometimes turns on
the OC bit when an over-current isn't actually present.
- companion:
- $ref: /schemas/types.yaml#/definitions/phandle
- description:
- Phandle of a companion.
-
phys:
minItems: 1
maxItems: 3
@@ -155,7 +151,7 @@ required:
- reg
- interrupts
-additionalProperties: false
+unevaluatedProperties: false
examples:
- |
diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
index bb6bbd5f129d..f838f78d6164 100644
--- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/generic-ohci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: USB OHCI Controller Device Tree Bindings
+title: USB OHCI Controller
allOf:
- $ref: "usb-hcd.yaml"
@@ -28,6 +28,7 @@ properties:
- allwinner,sun8i-h3-ohci
- allwinner,sun8i-r40-ohci
- allwinner,sun9i-a80-ohci
+ - allwinner,sun20i-d1-ohci
- brcm,bcm3384-ohci
- brcm,bcm63268-ohci
- brcm,bcm6328-ohci
diff --git a/Documentation/devicetree/bindings/usb/generic-xhci.yaml b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
index 23d73df96ea3..db841589fc33 100644
--- a/Documentation/devicetree/bindings/usb/generic-xhci.yaml
+++ b/Documentation/devicetree/bindings/usb/generic-xhci.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/generic-xhci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: USB xHCI Controller Device Tree Bindings
+title: USB xHCI Controller
maintainers:
- Mathias Nyman <mathias.nyman@intel.com>
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mt6370-tcpc.yaml b/Documentation/devicetree/bindings/usb/mediatek,mt6370-tcpc.yaml
new file mode 100644
index 000000000000..72f56cc88457
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/mediatek,mt6370-tcpc.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/mediatek,mt6370-tcpc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediatTek MT6370 Type-C Port Switch and Power Delivery controller
+
+maintainers:
+ - ChiYuan Huang <cy_huang@richtek.com>
+
+description: |
+ MediaTek MT6370 is a multi-functional device.
+ It integrates charger, ADC, flash, RGB indicators,
+ regulators (DSV/VIBLDO), and TypeC Port Switch with Power Delivery controller.
+ This document only describes MT6370 Type-C Port Switch and
+ Power Delivery controller.
+
+properties:
+ compatible:
+ enum:
+ - mediatek,mt6370-tcpc
+
+ interrupts:
+ maxItems: 1
+
+ connector:
+ type: object
+ $ref: /schemas/connector/usb-connector.yaml#
+ unevaluatedProperties: false
+
+additionalProperties: false
+
+required:
+ - compatible
+ - interrupts
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
index 084d7135b2d9..939623867a64 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/usb/mediatek,mtk-xhci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek USB3 xHCI Device Tree Bindings
+title: MediaTek USB3 xHCI
maintainers:
- Chunfeng Yun <chunfeng.yun@mediatek.com>
@@ -31,6 +31,7 @@ properties:
- mediatek,mt8173-xhci
- mediatek,mt8183-xhci
- mediatek,mt8186-xhci
+ - mediatek,mt8188-xhci
- mediatek,mt8192-xhci
- mediatek,mt8195-xhci
- const: mediatek,mtk-xhci
@@ -57,6 +58,7 @@ properties:
- description: optional, wakeup interrupt used to support runtime PM
interrupt-names:
+ minItems: 1
items:
- const: host
- const: wakeup
@@ -113,6 +115,9 @@ properties:
vbus-supply:
description: Regulator of USB VBUS5v
+ resets:
+ maxItems: 1
+
usb3-lpm-capable: true
usb2-lpm-disable: true
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
index 37b02a841dc4..80750b0f458a 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/usb/mediatek,mtu3.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek USB3 DRD Controller Device Tree Bindings
+title: MediaTek USB3 DRD Controller
maintainers:
- Chunfeng Yun <chunfeng.yun@mediatek.com>
@@ -24,6 +24,7 @@ properties:
- mediatek,mt2712-mtu3
- mediatek,mt8173-mtu3
- mediatek,mt8183-mtu3
+ - mediatek,mt8188-mtu3
- mediatek,mt8192-mtu3
- mediatek,mt8195-mtu3
- const: mediatek,mtu3
@@ -107,6 +108,9 @@ properties:
maximum-speed:
enum: [super-speed-plus, super-speed, high-speed, full-speed]
+ resets:
+ maxItems: 1
+
"#address-cells":
enum: [1, 2]
diff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.yaml b/Documentation/devicetree/bindings/usb/mediatek,musb.yaml
index 11a33f9b1f17..f16ab30a95d2 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,musb.yaml
+++ b/Documentation/devicetree/bindings/usb/mediatek,musb.yaml
@@ -5,7 +5,7 @@
$id: http://devicetree.org/schemas/usb/mediatek,musb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MediaTek MUSB DRD/OTG Controller Device Tree Bindings
+title: MediaTek MUSB DRD/OTG Controller
maintainers:
- Min Guo <min.guo@mediatek.com>
diff --git a/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml b/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
index 48c458c65848..c5e9ce2e7bc2 100644
--- a/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
+++ b/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/microchip,mpfs-musb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Microchip MPFS USB Controller Device Tree Bindings
+title: Microchip MPFS USB Controller
allOf:
- $ref: usb-drd.yaml#
diff --git a/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt b/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
index 5a0f1f14fbfa..352a0a1e2f76 100644
--- a/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
+++ b/Documentation/devicetree/bindings/usb/npcm7xx-usb.txt
@@ -5,7 +5,9 @@ EHCI:
-----
Required properties:
-- compatible: "nuvoton,npcm750-ehci"
+- compatible: should be one of
+ "nuvoton,npcm750-ehci"
+ "nuvoton,npcm845-ehci"
- interrupts: Should contain the EHCI interrupt
- reg: Physical address and length of the register set for the device
diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
index 749e1963ddbb..a6e6abb4dfa9 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
@@ -24,7 +24,9 @@ properties:
- qcom,qcs404-dwc3
- qcom,sc7180-dwc3
- qcom,sc7280-dwc3
+ - qcom,sc8280xp-dwc3
- qcom,sdm660-dwc3
+ - qcom,sdm670-dwc3
- qcom,sdm845-dwc3
- qcom,sdx55-dwc3
- qcom,sdx65-dwc3
@@ -32,6 +34,7 @@ properties:
- qcom,sm6115-dwc3
- qcom,sm6125-dwc3
- qcom,sm6350-dwc3
+ - qcom,sm6375-dwc3
- qcom,sm8150-dwc3
- qcom,sm8250-dwc3
- qcom,sm8350-dwc3
@@ -66,11 +69,11 @@ properties:
- mock_utmi:: Mock utmi clock needed for ITP/SOF generation in host
mode. Its frequency should be 19.2MHz.
minItems: 1
- maxItems: 6
+ maxItems: 9
clock-names:
minItems: 1
- maxItems: 6
+ maxItems: 9
assigned-clocks:
items:
@@ -93,20 +96,12 @@ properties:
- const: apps-usb
interrupts:
- items:
- - description: The interrupt that is asserted
- when a wakeup event is received on USB2 bus.
- - description: The interrupt that is asserted
- when a wakeup event is received on USB3 bus.
- - description: Wakeup event on DM line.
- - description: Wakeup event on DP line.
+ minItems: 1
+ maxItems: 4
interrupt-names:
- items:
- - const: hs_phy_irq
- - const: ss_phy_irq
- - const: dm_hs_phy_irq
- - const: dp_hs_phy_irq
+ minItems: 1
+ maxItems: 4
qcom,select-utmi-as-pipe-clk:
description:
@@ -115,12 +110,17 @@ properties:
HS/FS/LS modes are supported.
type: boolean
+ wakeup-source: true
+
# Required child node:
patternProperties:
"^usb@[0-9a-f]+$":
$ref: snps,dwc3.yaml#
+ properties:
+ wakeup-source: false
+
required:
- compatible
- reg
@@ -176,6 +176,7 @@ allOf:
- qcom,msm8998-dwc3
- qcom,sc7180-dwc3
- qcom,sc7280-dwc3
+ - qcom,sdm670-dwc3
- qcom,sdm845-dwc3
- qcom,sdx55-dwc3
- qcom,sm6350-dwc3
@@ -254,6 +255,28 @@ allOf:
compatible:
contains:
enum:
+ - qcom,sc8280xp-dwc3
+ then:
+ properties:
+ clocks:
+ maxItems: 9
+ clock-names:
+ items:
+ - const: cfg_noc
+ - const: core
+ - const: iface
+ - const: sleep
+ - const: mock_utmi
+ - const: noc_aggr
+ - const: noc_aggr_north
+ - const: noc_aggr_south
+ - const: noc_sys
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
- qcom,sdm660-dwc3
then:
properties:
@@ -273,6 +296,7 @@ allOf:
compatible:
contains:
enum:
+ - qcom,sm6115-dwc3
- qcom,sm6125-dwc3
- qcom,sm8150-dwc3
- qcom,sm8250-dwc3
@@ -311,6 +335,116 @@ allOf:
- const: mock_utmi
- const: xo
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,ipq4019-dwc3
+ - qcom,ipq6018-dwc3
+ - qcom,ipq8064-dwc3
+ - qcom,ipq8074-dwc3
+ - qcom,msm8994-dwc3
+ - qcom,qcs404-dwc3
+ - qcom,sc7180-dwc3
+ - qcom,sdm670-dwc3
+ - qcom,sdm845-dwc3
+ - qcom,sdx55-dwc3
+ - qcom,sdx65-dwc3
+ - qcom,sm4250-dwc3
+ - qcom,sm6125-dwc3
+ - qcom,sm6350-dwc3
+ - qcom,sm8150-dwc3
+ - qcom,sm8250-dwc3
+ - qcom,sm8350-dwc3
+ - qcom,sm8450-dwc3
+ then:
+ properties:
+ interrupts:
+ items:
+ - description: The interrupt that is asserted
+ when a wakeup event is received on USB2 bus.
+ - description: The interrupt that is asserted
+ when a wakeup event is received on USB3 bus.
+ - description: Wakeup event on DM line.
+ - description: Wakeup event on DP line.
+ interrupt-names:
+ items:
+ - const: hs_phy_irq
+ - const: ss_phy_irq
+ - const: dm_hs_phy_irq
+ - const: dp_hs_phy_irq
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,msm8953-dwc3
+ - qcom,msm8996-dwc3
+ - qcom,msm8998-dwc3
+ - qcom,sm6115-dwc3
+ then:
+ properties:
+ interrupts:
+ maxItems: 2
+ interrupt-names:
+ items:
+ - const: hs_phy_irq
+ - const: ss_phy_irq
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sdm660-dwc3
+ then:
+ properties:
+ interrupts:
+ minItems: 1
+ maxItems: 2
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: hs_phy_irq
+ - const: ss_phy_irq
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc7280-dwc3
+ then:
+ properties:
+ interrupts:
+ minItems: 3
+ maxItems: 4
+ interrupt-names:
+ minItems: 3
+ items:
+ - const: hs_phy_irq
+ - const: dp_hs_phy_irq
+ - const: dm_hs_phy_irq
+ - const: ss_phy_irq
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc8280xp-dwc3
+ then:
+ properties:
+ interrupts:
+ maxItems: 4
+ interrupt-names:
+ items:
+ - const: pwr_event
+ - const: dp_hs_phy_irq
+ - const: dm_hs_phy_irq
+ - const: ss_phy_irq
additionalProperties: false
diff --git a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
index 04ee255eb4f0..50f2b505bdeb 100644
--- a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
+++ b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
@@ -25,13 +25,13 @@ properties:
description:
phandle to the regulator that provides power to the hub.
- companion-hub:
+ peer-hub:
$ref: '/schemas/types.yaml#/definitions/phandle'
description:
- phandle to the companion hub on the controller.
+ phandle to the peer hub on the controller.
required:
- - companion-hub
+ - peer-hub
- compatible
- reg
@@ -49,7 +49,7 @@ examples:
compatible = "usbbda,5411";
reg = <1>;
vdd-supply = <&pp3300_hub>;
- companion-hub = <&hub_3_0>;
+ peer-hub = <&hub_3_0>;
};
/* 3.0 hub on port 2 */
@@ -57,6 +57,6 @@ examples:
compatible = "usbbda,411";
reg = <2>;
vdd-supply = <&pp3300_hub>;
- companion-hub = <&hub_2_0>;
+ peer-hub = <&hub_2_0>;
};
};
diff --git a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml
index 9fcf54b10b07..55dfd121b555 100644
--- a/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml
+++ b/Documentation/devicetree/bindings/usb/renesas,usb3-peri.yaml
@@ -11,27 +11,55 @@ maintainers:
properties:
compatible:
- items:
- - enum:
- - renesas,r8a774a1-usb3-peri # RZ/G2M
- - renesas,r8a774b1-usb3-peri # RZ/G2N
- - renesas,r8a774c0-usb3-peri # RZ/G2E
- - renesas,r8a774e1-usb3-peri # RZ/G2H
- - renesas,r8a7795-usb3-peri # R-Car H3
- - renesas,r8a7796-usb3-peri # R-Car M3-W
- - renesas,r8a77961-usb3-peri # R-Car M3-W+
- - renesas,r8a77965-usb3-peri # R-Car M3-N
- - renesas,r8a77990-usb3-peri # R-Car E3
- - const: renesas,rcar-gen3-usb3-peri
+ oneOf:
+ - items:
+ - enum:
+ - renesas,r8a774a1-usb3-peri # RZ/G2M
+ - renesas,r8a774b1-usb3-peri # RZ/G2N
+ - renesas,r8a774c0-usb3-peri # RZ/G2E
+ - renesas,r8a774e1-usb3-peri # RZ/G2H
+ - renesas,r8a7795-usb3-peri # R-Car H3
+ - renesas,r8a7796-usb3-peri # R-Car M3-W
+ - renesas,r8a77961-usb3-peri # R-Car M3-W+
+ - renesas,r8a77965-usb3-peri # R-Car M3-N
+ - renesas,r8a77990-usb3-peri # R-Car E3
+ - const: renesas,rcar-gen3-usb3-peri
+
+ - items:
+ - enum:
+ - renesas,r9a09g011-usb3-peri # RZ/V2M
+ - const: renesas,rzv2m-usb3-peri
reg:
maxItems: 1
interrupts:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: Combined interrupt for DMA, SYS and ERR
+ - description: Dual Role Device (DRD)
+ - description: Battery Charging
+ - description: Global Purpose Input
+
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: all_p
+ - const: drd
+ - const: bc
+ - const: gpi
clocks:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: Main clock
+ - description: Register access clock
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: aclk
+ - const: reg
phys:
maxItems: 1
@@ -43,7 +71,15 @@ properties:
maxItems: 1
resets:
- maxItems: 1
+ minItems: 1
+ items:
+ - description: Peripheral reset
+ - description: DRD reset
+
+ reset-names:
+ items:
+ - const: aresetn_p
+ - const: drd_reset
usb-role-switch:
$ref: /schemas/types.yaml#/definitions/flag
@@ -78,6 +114,39 @@ required:
- interrupts
- clocks
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - renesas,rzv2m-usb3-peri
+ then:
+ properties:
+ clocks:
+ minItems: 2
+ clock-names:
+ minItems: 2
+ interrupts:
+ minItems: 4
+ interrupt-names:
+ minItems: 4
+ resets:
+ minItems: 2
+ required:
+ - clock-names
+ - interrupt-names
+ - resets
+ - reset-names
+ else:
+ properties:
+ clocks:
+ maxItems: 1
+ interrupts:
+ maxItems: 1
+ resets:
+ maxItems: 1
+
additionalProperties: false
examples:
diff --git a/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml b/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml
new file mode 100644
index 000000000000..1999f614c89b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/richtek,rt1711h.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/richtek,rt1711h.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Richtek RT1711H Type-C Port Switch and Power Delivery controller
+
+maintainers:
+ - Gene Chen <gene_chen@richtek.com>
+
+description: |
+ The RT1711H is a USB Type-C controller that complies with the latest
+ USB Type-C and PD standards. It does the USB Type-C detection including attach
+ and orientation. It integrates the physical layer of the USB BMC power
+ delivery protocol to allow up to 100W of power. The BMC PD block enables full
+ support for alternative interfaces of the Type-C specification.
+
+properties:
+ compatible:
+ enum:
+ - richtek,rt1711h
+ - richtek,rt1715
+ description:
+ RT1711H support PD20, RT1715 support PD30 except Fast Role Swap.
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ wakeup-source:
+ type: boolean
+
+ connector:
+ type: object
+ $ref: /schemas/connector/usb-connector.yaml#
+ description:
+ Properties for usb c connector.
+
+additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - connector
+ - interrupts
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/usb/pd.h>
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ rt1711h@4e {
+ compatible = "richtek,rt1711h";
+ reg = <0x4e>;
+ interrupts-extended = <&gpio26 3 IRQ_TYPE_LEVEL_LOW>;
+ wakeup-source;
+
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ data-role = "dual";
+ power-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP)>;
+ sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP)>;
+ op-sink-microwatt = <10000000>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ endpoint {
+ remote-endpoint = <&usb_hs>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ endpoint {
+ remote-endpoint = <&usb_ss>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ endpoint {
+ remote-endpoint = <&dp_aux>;
+ };
+ };
+ };
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml b/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml
index 321b6f166197..a09f4528aea3 100644
--- a/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml
+++ b/Documentation/devicetree/bindings/usb/smsc,usb3503.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/smsc,usb3503.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: SMSC USB3503 High-Speed Hub Controller Device Tree Bindings
+title: SMSC USB3503 High-Speed Hub Controller
maintainers:
- Dongjin Kim <tobetter@gmail.com>
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
index d41265ba8ce2..6d78048c4613 100644
--- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml
@@ -234,6 +234,18 @@ properties:
avoid -EPROTO errors with usbhid on some devices (Hikey 970).
type: boolean
+ snps,gfladj-refclk-lpm-sel-quirk:
+ description:
+ When set, run the SOF/ITP counter based on ref_clk.
+ type: boolean
+
+ snps,resume-hs-terminations:
+ description:
+ Fix the issue of HS terminations CRC error on resume by enabling this
+ quirk. When set, all the termsel, xcvrsel, opmode becomes 0 during end
+ of resume. This option is to support certain legacy ULPI PHYs.
+ type: boolean
+
snps,is-utmi-l1-suspend:
description:
True when DWC3 asserts output signal utmi_l1_suspend_n, false when
@@ -343,6 +355,11 @@ properties:
This port is used with the 'usb-role-switch' property to connect the
dwc3 to type C connector.
+ wakeup-source:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description:
+ Enable USB remote wakeup.
+
unevaluatedProperties: false
required:
diff --git a/Documentation/devicetree/bindings/usb/st,stusb160x.yaml b/Documentation/devicetree/bindings/usb/st,stusb160x.yaml
index b5a8c9814dd3..b8974807b666 100644
--- a/Documentation/devicetree/bindings/usb/st,stusb160x.yaml
+++ b/Documentation/devicetree/bindings/usb/st,stusb160x.yaml
@@ -33,6 +33,7 @@ properties:
connector:
type: object
$ref: /schemas/connector/usb-connector.yaml#
+ unevaluatedProperties: false
properties:
compatible:
@@ -74,9 +75,14 @@ examples:
data-role = "dual";
typec-power-opmode = "default";
- port {
- typec_con_ep: endpoint {
- remote-endpoint = <&usbotg_hs_ep>;
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ typec_con_ep: endpoint {
+ remote-endpoint = <&usbotg_hs_ep>;
+ };
};
};
};
diff --git a/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml b/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml
new file mode 100644
index 000000000000..1cb68cabe17d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml
@@ -0,0 +1,91 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/st,typec-stm32g0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STM32G0 USB Type-C PD controller
+
+description: |
+ The STM32G0 MCU can be programmed to control Type-C connector(s) through I2C
+ typically using the UCSI protocol over I2C, with a dedicated alert
+ (interrupt) pin.
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
+
+properties:
+ compatible:
+ const: st,stm32g0-typec
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ connector:
+ type: object
+ $ref: /schemas/connector/usb-connector.yaml#
+ unevaluatedProperties: false
+
+ firmware-name:
+ description: |
+ Should contain the name of the default firmware image
+ file located on the firmware search path
+
+ wakeup-source: true
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - connector
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ typec@53 {
+ compatible = "st,stm32g0-typec";
+ reg = <0x53>;
+ /* Alert pin on GPIO PE12 */
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpioe>;
+
+ /* Example with one type-C connector */
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ reg = <0>;
+ con_usb_c_ep: endpoint {
+ remote-endpoint = <&usb_ep>;
+ };
+ };
+ };
+ };
+ };
+ };
+
+ usb {
+ usb-role-switch;
+ port {
+ usb_ep: endpoint {
+ remote-endpoint = <&con_usb_c_ep>;
+ };
+ };
+ };
+...
diff --git a/Documentation/devicetree/bindings/usb/ti,usb8041.yaml b/Documentation/devicetree/bindings/usb/ti,usb8041.yaml
new file mode 100644
index 000000000000..e04fbd8ab0b7
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,usb8041.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ti,usb8041.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binding for the TI USB8041 USB 3.0 hub controller
+
+maintainers:
+ - Alexander Stein <alexander.stein@ew.tq-group.com>
+
+allOf:
+ - $ref: usb-device.yaml#
+
+properties:
+ compatible:
+ enum:
+ - usb451,8140
+ - usb451,8142
+
+ reg: true
+
+ reset-gpios:
+ items:
+ - description: GPIO specifier for GRST# pin.
+
+ vdd-supply:
+ description:
+ VDD power supply to the hub
+
+ peer-hub:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ phandle to the peer hub on the controller.
+
+required:
+ - compatible
+ - reg
+ - peer-hub
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ usb {
+ dr_mode = "host";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* 2.0 hub on port 1 */
+ hub_2_0: hub@1 {
+ compatible = "usb451,8142";
+ reg = <1>;
+ peer-hub = <&hub_3_0>;
+ reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+ };
+
+ /* 3.0 hub on port 2 */
+ hub_3_0: hub@2 {
+ compatible = "usb451,8140";
+ reg = <2>;
+ peer-hub = <&hub_2_0>;
+ reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/usb/usb-drd.yaml b/Documentation/devicetree/bindings/usb/usb-drd.yaml
index f229fc8068d9..1567549b05ce 100644
--- a/Documentation/devicetree/bindings/usb/usb-drd.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-drd.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/usb-drd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Generic USB OTG Controller Device Tree Bindings
+title: Generic USB OTG Controller
maintainers:
- Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Documentation/devicetree/bindings/usb/usb-hcd.yaml b/Documentation/devicetree/bindings/usb/usb-hcd.yaml
index 1dc3d5d7b44f..692dd60e3f73 100644
--- a/Documentation/devicetree/bindings/usb/usb-hcd.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-hcd.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/usb-hcd.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Generic USB Host Controller Device Tree Bindings
+title: Generic USB Host Controller
maintainers:
- Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.yaml b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
index 965f87fef702..f2139a9f35fb 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.yaml
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/usb-xhci.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Generic USB xHCI Controller Device Tree Bindings
+title: Generic USB xHCI Controller
maintainers:
- Mathias Nyman <mathias.nyman@intel.com>
diff --git a/Documentation/devicetree/bindings/usb/usb.yaml b/Documentation/devicetree/bindings/usb/usb.yaml
index 939f217b8c7b..326b14f05d1c 100644
--- a/Documentation/devicetree/bindings/usb/usb.yaml
+++ b/Documentation/devicetree/bindings/usb/usb.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/usb/usb.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Generic USB Controller Device Tree Bindings
+title: Generic USB Controller
maintainers:
- Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/Documentation/devicetree/bindings/usb/willsemi,wusb3801.yaml b/Documentation/devicetree/bindings/usb/willsemi,wusb3801.yaml
index c2b2243c7892..5aa4ffd67119 100644
--- a/Documentation/devicetree/bindings/usb/willsemi,wusb3801.yaml
+++ b/Documentation/devicetree/bindings/usb/willsemi,wusb3801.yaml
@@ -28,6 +28,7 @@ properties:
connector:
type: object
$ref: ../connector/usb-connector.yaml#
+ unevaluatedProperties: false
description:
The managed USB Type-C connector. Since WUSB3801 does not support
Power Delivery, the node should have the "pd-disable" property.
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 0496773a3c4d..6e323a380294 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -105,6 +105,8 @@ patternProperties:
description: AMS-Taos Inc.
"^analogix,.*":
description: Analogix Semiconductor, Inc.
+ "^anbernic,.*":
+ description: Anbernic
"^andestech,.*":
description: Andes Technology Corporation
"^anvo,.*":
@@ -141,6 +143,8 @@ patternProperties:
description: ASIX Electronics Corporation
"^aspeed,.*":
description: ASPEED Technology Inc.
+ "^asrock,.*":
+ description: ASRock Inc.
"^asus,.*":
description: AsusTek Computer Inc.
"^atheros,.*":
@@ -198,12 +202,14 @@ patternProperties:
description: Broadcom Corporation
"^bsh,.*":
description: BSH Hausgeraete GmbH
+ "^bticino,.*":
+ description: Bticino International
"^buffalo,.*":
description: Buffalo, Inc.
"^bur,.*":
description: B&R Industrial Automation GmbH
- "^bticino,.*":
- description: Bticino International
+ "^bytedance,.*":
+ description: ByteDance Ltd.
"^calamp,.*":
description: CalAmp Corp.
"^calaosystems,.*":
@@ -308,6 +314,8 @@ patternProperties:
description: Dell Inc.
"^delta,.*":
description: Delta Electronics, Inc.
+ "^densitron,.*":
+ description: Densitron Technologies Ltd
"^denx,.*":
description: Denx Software Engineering
"^devantech,.*":
@@ -322,6 +330,8 @@ patternProperties:
description: Digi International Inc.
"^digilent,.*":
description: Diglent, Inc.
+ "^diodes,.*":
+ description: Diodes, Inc.
"^dioo,.*":
description: Dioo Microcircuit Co., Ltd
"^dlc,.*":
@@ -350,6 +360,8 @@ patternProperties:
description: Embedded Artists AB
"^ebang,.*":
description: Zhejiang Ebang Communication Co., Ltd
+ "^ebbg,.*":
+ description: EBBG
"^ebs-systart,.*":
description: EBS-SYSTART GmbH
"^ebv,.*":
@@ -510,6 +522,8 @@ patternProperties:
description: Haoyu Microelectronic Co. Ltd.
"^hardkernel,.*":
description: Hardkernel Co., Ltd
+ "^hechuang,.*":
+ description: Shenzhen Hechuang Intelligent Co.
"^hideep,.*":
description: HiDeep Inc.
"^himax,.*":
@@ -547,6 +561,8 @@ patternProperties:
description: Shenzhen Hugsun Technology Co. Ltd.
"^hwacom,.*":
description: HwaCom Systems Inc.
+ "^hxt,.*":
+ description: HXT Semiconductor
"^hycon,.*":
description: Hycon Technology Corp.
"^hydis,.*":
@@ -581,6 +597,8 @@ patternProperties:
description: Infineon Technologies
"^inforce,.*":
description: Inforce Computing
+ "^ingrasys,.*":
+ description: Ingrasys Technology Inc.
"^ivo,.*":
description: InfoVision Optoelectronics Kunshan Co. Ltd.
"^ingenic,.*":
@@ -601,6 +619,8 @@ patternProperties:
description: Inter Control Group
"^invensense,.*":
description: InvenSense Inc.
+ "^inventec,.*":
+ description: Inventec
"^inversepath,.*":
description: Inverse Path
"^iom,.*":
@@ -761,6 +781,8 @@ patternProperties:
description: MELFAS Inc.
"^mellanox,.*":
description: Mellanox Technologies
+ "^memsensing,.*":
+ description: MEMSensing Microsystems Co., Ltd.
"^memsic,.*":
description: MEMSIC Inc.
"^menlo,.*":
@@ -771,6 +793,8 @@ patternProperties:
description: Cisco Meraki, LLC
"^merrii,.*":
description: Merrii Technology Co., Ltd.
+ "^methode,.*":
+ description: Methode Electronics, Inc.
"^micrel,.*":
description: Micrel Inc.
"^microchip,.*":
@@ -795,12 +819,16 @@ patternProperties:
description: MiraMEMS Sensing Technology Co., Ltd.
"^mitsubishi,.*":
description: Mitsubishi Electric Corporation
+ "^mixel,.*":
+ description: Mixel, Inc.
"^miyoo,.*":
description: Miyoo
"^mntre,.*":
description: MNT Research GmbH
"^modtronix,.*":
description: Modtronix Engineering
+ "^moortec,.*":
+ description: Moortec Semiconductor Ltd.
"^mosaixtech,.*":
description: Mosaix Technologies, Inc.
"^motorola,.*":
@@ -907,6 +935,8 @@ patternProperties:
description: On Tat Industrial Company
"^opalkelly,.*":
description: Opal Kelly Incorporated
+ "^openailab,.*":
+ description: openailab.com
"^opencores,.*":
description: OpenCores.org
"^openembed,.*":
@@ -1013,6 +1043,8 @@ patternProperties:
description: Shenzhen QiShenglong Industrialist Co., Ltd.
"^qnap,.*":
description: QNAP Systems, Inc.
+ "^quanta,.*":
+ description: Quanta Computer Inc.
"^radxa,.*":
description: Radxa
"^raidsonic,.*":
@@ -1101,6 +1133,8 @@ patternProperties:
description: SGX Sensortech
"^sharp,.*":
description: Sharp Corporation
+ "^shift,.*":
+ description: SHIFT GmbH
"^shimafuji,.*":
description: Shimafuji Electric, Inc.
"^shiratech,.*":
diff --git a/Documentation/devicetree/bindings/virtio/iommu.txt b/Documentation/devicetree/bindings/virtio/iommu.txt
deleted file mode 100644
index 2407fea0651c..000000000000
--- a/Documentation/devicetree/bindings/virtio/iommu.txt
+++ /dev/null
@@ -1,66 +0,0 @@
-* virtio IOMMU PCI device
-
-When virtio-iommu uses the PCI transport, its programming interface is
-discovered dynamically by the PCI probing infrastructure. However the
-device tree statically describes the relation between IOMMU and DMA
-masters. Therefore, the PCI root complex that hosts the virtio-iommu
-contains a child node representing the IOMMU device explicitly.
-
-Required properties:
-
-- compatible: Should be "virtio,pci-iommu"
-- reg: PCI address of the IOMMU. As defined in the PCI Bus
- Binding reference [1], the reg property is a five-cell
- address encoded as (phys.hi phys.mid phys.lo size.hi
- size.lo). phys.hi should contain the device's BDF as
- 0b00000000 bbbbbbbb dddddfff 00000000. The other cells
- should be zero.
-- #iommu-cells: Each platform DMA master managed by the IOMMU is assigned
- an endpoint ID, described by the "iommus" property [2].
- For virtio-iommu, #iommu-cells must be 1.
-
-Notes:
-
-- DMA from the IOMMU device isn't managed by another IOMMU. Therefore the
- virtio-iommu node doesn't have an "iommus" property, and is omitted from
- the iommu-map property of the root complex.
-
-Example:
-
-pcie@10000000 {
- compatible = "pci-host-ecam-generic";
- ...
-
- /* The IOMMU programming interface uses slot 00:01.0 */
- iommu0: iommu@0008 {
- compatible = "virtio,pci-iommu";
- reg = <0x00000800 0 0 0 0>;
- #iommu-cells = <1>;
- };
-
- /*
- * The IOMMU manages all functions in this PCI domain except
- * itself. Omit BDF 00:01.0.
- */
- iommu-map = <0x0 &iommu0 0x0 0x8>
- <0x9 &iommu0 0x9 0xfff7>;
-};
-
-pcie@20000000 {
- compatible = "pci-host-ecam-generic";
- ...
- /*
- * The IOMMU also manages all functions from this domain,
- * with endpoint IDs 0x10000 - 0x1ffff
- */
- iommu-map = <0x0 &iommu0 0x10000 0x10000>;
-};
-
-ethernet@fe001000 {
- ...
- /* The IOMMU manages this platform device with endpoint ID 0x20000 */
- iommus = <&iommu0 0x20000>;
-};
-
-[1] Documentation/devicetree/bindings/pci/pci.txt
-[2] Documentation/devicetree/bindings/iommu/iommu.txt
diff --git a/Documentation/devicetree/bindings/virtio/mmio.yaml b/Documentation/devicetree/bindings/virtio/mmio.yaml
index 10c22b5bd16a..0aa8433f0a5e 100644
--- a/Documentation/devicetree/bindings/virtio/mmio.yaml
+++ b/Documentation/devicetree/bindings/virtio/mmio.yaml
@@ -33,6 +33,10 @@ properties:
description: Required for devices making accesses thru an IOMMU.
maxItems: 1
+ wakeup-source:
+ type: boolean
+ description: Required for setting irq of a virtio_mmio device as wakeup source.
+
required:
- compatible
- reg
diff --git a/Documentation/devicetree/bindings/virtio/pci-iommu.yaml b/Documentation/devicetree/bindings/virtio/pci-iommu.yaml
new file mode 100644
index 000000000000..972a785a42de
--- /dev/null
+++ b/Documentation/devicetree/bindings/virtio/pci-iommu.yaml
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/virtio/pci-iommu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: virtio-iommu device using the virtio-pci transport
+
+maintainers:
+ - Jean-Philippe Brucker <jean-philippe@linaro.org>
+
+description: |
+ When virtio-iommu uses the PCI transport, its programming interface is
+ discovered dynamically by the PCI probing infrastructure. However the
+ device tree statically describes the relation between IOMMU and DMA
+ masters. Therefore, the PCI root complex that hosts the virtio-iommu
+ contains a child node representing the IOMMU device explicitly.
+
+ DMA from the IOMMU device isn't managed by another IOMMU. Therefore the
+ virtio-iommu node doesn't have an "iommus" property, and is omitted from
+ the iommu-map property of the root complex.
+
+properties:
+ # If compatible is present, it should contain the vendor and device ID
+ # according to the PCI Bus Binding specification. Since PCI provides
+ # built-in identification methods, compatible is not actually required.
+ compatible:
+ oneOf:
+ - items:
+ - const: virtio,pci-iommu
+ - const: pci1af4,1057
+ - items:
+ - const: pci1af4,1057
+
+ reg:
+ description: |
+ PCI address of the IOMMU. As defined in the PCI Bus Binding
+ reference, the reg property is a five-cell address encoded as (phys.hi
+ phys.mid phys.lo size.hi size.lo). phys.hi should contain the device's
+ BDF as 0b00000000 bbbbbbbb dddddfff 00000000. The other cells should be
+ zero. See Documentation/devicetree/bindings/pci/pci.txt
+
+ '#iommu-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#iommu-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pcie@40000000 {
+ device_type = "pci";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ reg = <0x0 0x40000000 0x0 0x1000000>;
+ ranges = <0x02000000 0x0 0x41000000 0x0 0x41000000 0x0 0x0f000000>;
+
+ /*
+ * The IOMMU manages all functions in this PCI domain except
+ * itself. Omit BDF 00:01.0.
+ */
+ iommu-map = <0x0 &iommu0 0x0 0x8
+ 0x9 &iommu0 0x9 0xfff7>;
+
+ /* The IOMMU programming interface uses slot 00:01.0 */
+ iommu0: iommu@1,0 {
+ compatible = "pci1af4,1057";
+ reg = <0x800 0 0 0 0>;
+ #iommu-cells = <1>;
+ };
+ };
+
+ pcie@50000000 {
+ device_type = "pci";
+ #address-cells = <3>;
+ #size-cells = <2>;
+ reg = <0x0 0x50000000 0x0 0x1000000>;
+ ranges = <0x02000000 0x0 0x51000000 0x0 0x51000000 0x0 0x0f000000>;
+
+ /*
+ * The IOMMU also manages all functions from this domain,
+ * with endpoint IDs 0x10000 - 0x1ffff
+ */
+ iommu-map = <0x0 &iommu0 0x10000 0x10000>;
+ };
+
+ ethernet {
+ /* The IOMMU manages this platform device with endpoint ID 0x20000 */
+ iommus = <&iommu0 0x20000>;
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/w1/w1-gpio.yaml b/Documentation/devicetree/bindings/w1/w1-gpio.yaml
index 8eef2380161b..b02b02237082 100644
--- a/Documentation/devicetree/bindings/w1/w1-gpio.yaml
+++ b/Documentation/devicetree/bindings/w1/w1-gpio.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/w1/w1-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Bitbanged GPIO 1-Wire Bus Device Tree Bindings
+title: Bitbanged GPIO 1-Wire Bus
maintainers:
- Daniel Mack <zonque@gmail.com>
diff --git a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
index ed6c1ca80dcc..026c2e5e77aa 100644
--- a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/watchdog/allwinner,sun4i-a10-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Allwinner A10 Watchdog Device Tree Bindings
+title: Allwinner A10 Watchdog
allOf:
- $ref: "watchdog.yaml#"
diff --git a/Documentation/devicetree/bindings/watchdog/amlogic,meson-gxbb-wdt.yaml b/Documentation/devicetree/bindings/watchdog/amlogic,meson-gxbb-wdt.yaml
index c7459cf70e30..497d60408ea0 100644
--- a/Documentation/devicetree/bindings/watchdog/amlogic,meson-gxbb-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/amlogic,meson-gxbb-wdt.yaml
@@ -8,7 +8,7 @@ $schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Meson GXBB SoCs Watchdog timer
maintainers:
- - Neil Armstrong <narmstrong@baylibre.com>
+ - Neil Armstrong <neil.armstrong@linaro.org>
allOf:
- $ref: watchdog.yaml#
diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
index ca9e1beff76b..6ecd429f76b5 100644
--- a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
+++ b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
@@ -55,7 +55,7 @@ examples:
compatible = "faraday,ftwdt010";
reg = <0x41000000 0x1000>;
interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
- timeout-secs = <5>;
+ timeout-sec = <5>;
};
- |
watchdog: watchdog@98500000 {
diff --git a/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml
new file mode 100644
index 000000000000..f84c45d687d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/fsl,scu-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Watchdog bindings based on SCU Message Protocol
+
+maintainers:
+ - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+ Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: fsl,imx8qxp-sc-wdt
+ - const: fsl,imx-sc-wdt
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog {
+ compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
+ timeout-sec = <60>;
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml
index e3e8b86dbf63..33794711c594 100644
--- a/Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/mstar,msc313e-wdt.yaml
@@ -4,7 +4,7 @@
$id: http://devicetree.org/schemas/watchdog/mstar,msc313e-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: MStar Watchdog Device Tree Bindings
+title: MStar Watchdog
maintainers:
- Daniel Palmer <daniel@0x0f.com>
diff --git a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
index 9059f54dc023..866a958b8a2b 100644
--- a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
@@ -6,7 +6,8 @@ expiry.
Required properties:
- compatible : "nuvoton,npcm750-wdt" for NPCM750 (Poleg), or
- "nuvoton,wpcm450-wdt" for WPCM450 (Hermon).
+ "nuvoton,wpcm450-wdt" for WPCM450 (Hermon), or
+ "nuvoton,npcm845-wdt" for NPCM845 (Arbel).
- reg : Offset and length of the register set for the device.
- interrupts : Contain the timer interrupt with flags for
falling edge.
diff --git a/Documentation/devicetree/bindings/watchdog/qcom,pm8916-wdt.txt b/Documentation/devicetree/bindings/watchdog/qcom,pm8916-wdt.txt
deleted file mode 100644
index 6fb984f31982..000000000000
--- a/Documentation/devicetree/bindings/watchdog/qcom,pm8916-wdt.txt
+++ /dev/null
@@ -1,28 +0,0 @@
-QCOM PM8916 watchdog timer controller
-
-This pm8916 watchdog timer controller must be under pm8916-pon node.
-
-Required properties:
-- compatible: should be "qcom,pm8916-wdt"
-
-Optional properties :
-- interrupts : Watchdog pre-timeout (bark) interrupt.
-- timeout-sec : Watchdog timeout value in seconds.
-
-Example:
-
- pm8916_0: pm8916@0 {
- compatible = "qcom,pm8916", "qcom,spmi-pmic";
- reg = <0x0 SPMI_USID>;
-
- pon@800 {
- compatible = "qcom,pm8916-pon";
- reg = <0x800>;
-
- watchdog {
- compatible = "qcom,pm8916-wdt";
- interrupts = <0x0 0x8 6 IRQ_TYPE_EDGE_RISING>;
- timeout-sec = <10>;
- };
- };
- };
diff --git a/Documentation/devicetree/bindings/watchdog/qcom,pm8916-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom,pm8916-wdt.yaml
new file mode 100644
index 000000000000..568eb8480fc3
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/qcom,pm8916-wdt.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/qcom,pm8916-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm PM8916 watchdog timer controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ const: qcom,pm8916-wdt
+
+ interrupts:
+ maxItems: 1
+
+required:
+ - compatible
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/spmi/spmi.h>
+
+ pmic@0 {
+ compatible = "qcom,pm8916", "qcom,spmi-pmic";
+ reg = <0x0 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pon@800 {
+ compatible = "qcom,pm8916-pon";
+ reg = <0x800>;
+ mode-bootloader = <0x2>;
+ mode-recovery = <0x1>;
+
+ watchdog {
+ compatible = "qcom,pm8916-wdt";
+ interrupts = <0x0 0x8 6 IRQ_TYPE_EDGE_RISING>;
+ timeout-sec = <60>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
index 2bd6b4a52637..d8ac0be36e6c 100644
--- a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
@@ -24,6 +24,7 @@ properties:
- qcom,apss-wdt-sc8280xp
- qcom,apss-wdt-sdm845
- qcom,apss-wdt-sdx55
+ - qcom,apss-wdt-sdx65
- qcom,apss-wdt-sm6350
- qcom,apss-wdt-sm8150
- qcom,apss-wdt-sm8250
diff --git a/Documentation/devicetree/bindings/watchdog/realtek,otto-wdt.yaml b/Documentation/devicetree/bindings/watchdog/realtek,otto-wdt.yaml
index 11b220a5e0f6..099245fe7b10 100644
--- a/Documentation/devicetree/bindings/watchdog/realtek,otto-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/realtek,otto-wdt.yaml
@@ -29,6 +29,7 @@ properties:
- realtek,rtl8380-wdt
- realtek,rtl8390-wdt
- realtek,rtl9300-wdt
+ - realtek,rtl9310-wdt
reg:
maxItems: 1
diff --git a/Documentation/devicetree/bindings/writing-bindings.rst b/Documentation/devicetree/bindings/writing-bindings.rst
index 5465eced2af1..1ad081de2dd0 100644
--- a/Documentation/devicetree/bindings/writing-bindings.rst
+++ b/Documentation/devicetree/bindings/writing-bindings.rst
@@ -53,7 +53,7 @@ Properties
- DO use common property unit suffixes for properties with scientific units.
Recommended suffixes are listed at
- https://github.com/devicetree-org/dt-schema/blob/master/schemas/property-units.yaml
+ https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/property-units.yaml
- DO define properties in terms of constraints. How many entries? What are
possible values? What is the order?
diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
index a7cb2afd7990..1dcbd7332476 100644
--- a/Documentation/doc-guide/kernel-doc.rst
+++ b/Documentation/doc-guide/kernel-doc.rst
@@ -1,3 +1,5 @@
+.. title:: Kernel-doc comments
+
===========================
Writing kernel-doc comments
===========================
@@ -12,6 +14,9 @@ when it is embedded in source files.
reasons. The kernel source contains tens of thousands of kernel-doc
comments. Please stick to the style described here.
+.. note:: kernel-doc does not cover Rust code: please see
+ Documentation/rust/general-information.rst instead.
+
The kernel-doc structure is extracted from the comments, and proper
`Sphinx C Domain`_ function and type descriptions with anchors are
generated from them. The descriptions are filtered for special kernel-doc
diff --git a/Documentation/doc-guide/sphinx.rst b/Documentation/doc-guide/sphinx.rst
index 2ff1ab4158d4..c708cec889af 100644
--- a/Documentation/doc-guide/sphinx.rst
+++ b/Documentation/doc-guide/sphinx.rst
@@ -48,10 +48,6 @@ or ``virtualenv``, depending on how your distribution packaged Python 3.
on the Sphinx version, it should be installed separately,
with ``pip install sphinx_rtd_theme``.
- #) Some ReST pages contain math expressions. Due to the way Sphinx works,
- those expressions are written using LaTeX notation. It needs texlive
- installed with amsfonts and amsmath in order to evaluate them.
-
In summary, if you want to install Sphinx version 2.4.4, you should do::
$ virtualenv sphinx_2.4.4
@@ -86,6 +82,27 @@ Depending on the distribution, you may also need to install a series of
``texlive`` packages that provide the minimal set of functionalities
required for ``XeLaTeX`` to work.
+Math Expressions in HTML
+------------------------
+
+Some ReST pages contain math expressions. Due to the way Sphinx works,
+those expressions are written using LaTeX notation.
+There are two options for Sphinx to render math expressions in html output.
+One is an extension called `imgmath`_ which converts math expressions into
+images and embeds them in html pages.
+The other is an extension called `mathjax`_ which delegates math rendering
+to JavaScript capable web browsers.
+The former was the only option for pre-6.1 kernel documentation and it
+requires quite a few texlive packages including amsfonts and amsmath among
+others.
+
+Since kernel release 6.1, html pages with math expressions can be built
+without installing any texlive packages. See `Choice of Math Renderer`_ for
+further info.
+
+.. _imgmath: https://www.sphinx-doc.org/en/master/usage/extensions/math.html#module-sphinx.ext.imgmath
+.. _mathjax: https://www.sphinx-doc.org/en/master/usage/extensions/math.html#module-sphinx.ext.mathjax
+
.. _sphinx-pre-install:
Checking for Sphinx dependencies
@@ -132,7 +149,8 @@ format-specific subdirectories under ``Documentation/output``.
To generate documentation, Sphinx (``sphinx-build``) must obviously be
installed. For prettier HTML output, the Read the Docs Sphinx theme
(``sphinx_rtd_theme``) is used if available. For PDF output you'll also need
-``XeLaTeX`` and ``convert(1)`` from ImageMagick (https://www.imagemagick.org).
+``XeLaTeX`` and ``convert(1)`` from ImageMagick
+(https://www.imagemagick.org).\ [#ink]_
All of these are widely available and packaged in distributions.
To pass extra options to Sphinx, you can use the ``SPHINXOPTS`` make
@@ -150,8 +168,51 @@ If the theme is not available, it will fall-back to the classic one.
The Sphinx theme can be overridden by using the ``DOCS_THEME`` make variable.
+There is another make variable ``SPHINXDIRS``, which is useful when test
+building a subset of documentation. For example, you can build documents
+under ``Documentation/doc-guide`` by running
+``make SPHINXDIRS=doc-guide htmldocs``.
+The documentation section of ``make help`` will show you the list of
+subdirectories you can specify.
+
To remove the generated documentation, run ``make cleandocs``.
+.. [#ink] Having ``inkscape(1)`` from Inkscape (https://inkscape.org)
+ as well would improve the quality of images embedded in PDF
+ documents, especially for kernel releases 5.18 and later.
+
+Choice of Math Renderer
+-----------------------
+
+Since kernel release 6.1, mathjax works as a fallback math renderer for
+html output.\ [#sph1_8]_
+
+Math renderer is chosen depending on available commands as shown below:
+
+.. table:: Math Renderer Choices for HTML
+
+ ============= ================= ============
+ Math renderer Required commands Image format
+ ============= ================= ============
+ imgmath latex, dvipng PNG (raster)
+ mathjax
+ ============= ================= ============
+
+The choice can be overridden by setting an environment variable
+``SPHINX_IMGMATH`` as shown below:
+
+.. table:: Effect of Setting ``SPHINX_IMGMATH``
+
+ ====================== ========
+ Setting Renderer
+ ====================== ========
+ ``SPHINX_IMGMATH=yes`` imgmath
+ ``SPHINX_IMGMATH=no`` mathjax
+ ====================== ========
+
+.. [#sph1_8] Fallback of math renderer requires Sphinx >=1.8.
+
+
Writing Documentation
=====================
diff --git a/Documentation/driver-api/aperture.rst b/Documentation/driver-api/aperture.rst
new file mode 100644
index 000000000000..d173f4e7a7d9
--- /dev/null
+++ b/Documentation/driver-api/aperture.rst
@@ -0,0 +1,13 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Managing Ownership of the Framebuffer Aperture
+==============================================
+
+.. kernel-doc:: drivers/video/aperture.c
+ :doc: overview
+
+.. kernel-doc:: include/linux/aperture.h
+ :internal:
+
+.. kernel-doc:: drivers/video/aperture.c
+ :export:
diff --git a/Documentation/driver-api/cxl/memory-devices.rst b/Documentation/driver-api/cxl/memory-devices.rst
index db476bb170b6..5149ecdc53c7 100644
--- a/Documentation/driver-api/cxl/memory-devices.rst
+++ b/Documentation/driver-api/cxl/memory-devices.rst
@@ -362,6 +362,14 @@ CXL Core
.. kernel-doc:: drivers/cxl/core/mbox.c
:doc: cxl mbox
+CXL Regions
+-----------
+.. kernel-doc:: drivers/cxl/core/region.c
+ :doc: cxl core region
+
+.. kernel-doc:: drivers/cxl/core/region.c
+ :identifiers:
+
External Interfaces
===================
diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst
index 1e0f1f85d10e..ceac2a300e32 100644
--- a/Documentation/driver-api/dmaengine/provider.rst
+++ b/Documentation/driver-api/dmaengine/provider.rst
@@ -162,16 +162,6 @@ Currently, the types available are:
- The device is able to do memory to memory copies
-- - DMA_MEMCPY_SG
-
- - The device supports memory to memory scatter-gather transfers.
-
- - Even though a plain memcpy can look like a particular case of a
- scatter-gather transfer, with a single chunk to copy, it's a distinct
- transaction type in the mem2mem transfer case. This is because some very
- simple devices might be able to do contiguous single-chunk memory copies,
- but have no support for more complex SG transfers.
-
- No matter what the overall size of the combined chunks for source and
destination is, only as many bytes as the smallest of the two will be
transmitted. That means the number and size of the scatter-gather buffers in
diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 2d39967bafcc..687adb58048e 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -277,7 +277,6 @@ GPIO
devm_gpiochip_add_data()
devm_gpio_request()
devm_gpio_request_one()
- devm_gpio_free()
I2C
devm_i2c_new_dummy_device()
@@ -302,6 +301,7 @@ IO region
devm_release_region()
devm_release_resource()
devm_request_mem_region()
+ devm_request_free_mem_region()
devm_request_region()
devm_request_resource()
@@ -311,7 +311,6 @@ IOMAP
devm_ioremap()
devm_ioremap_uc()
devm_ioremap_wc()
- devm_ioremap_np()
devm_ioremap_resource() : checks resource, requests memory region, ioremaps
devm_ioremap_resource_wc()
devm_platform_ioremap_resource() : calls devm_ioremap_resource() for platform device
@@ -335,7 +334,7 @@ IRQ
devm_irq_alloc_descs_from()
devm_irq_alloc_generic_chip()
devm_irq_setup_generic_chip()
- devm_irq_sim_init()
+ devm_irq_domain_create_sim()
LED
devm_led_classdev_register()
@@ -393,7 +392,9 @@ PHY
PINCTRL
devm_pinctrl_get()
devm_pinctrl_put()
+ devm_pinctrl_get_select()
devm_pinctrl_register()
+ devm_pinctrl_register_and_init()
devm_pinctrl_unregister()
POWER
@@ -402,14 +403,24 @@ POWER
PWM
devm_pwm_get()
- devm_of_pwm_get()
devm_fwnode_pwm_get()
REGULATOR
+ devm_regulator_bulk_register_supply_alias()
devm_regulator_bulk_get()
+ devm_regulator_bulk_get_enable()
+ devm_regulator_bulk_put()
devm_regulator_get()
+ devm_regulator_get_enable()
+ devm_regulator_get_enable_optional()
+ devm_regulator_get_exclusive()
+ devm_regulator_get_optional()
+ devm_regulator_irq_helper()
devm_regulator_put()
devm_regulator_register()
+ devm_regulator_register_notifier()
+ devm_regulator_register_supply_alias()
+ devm_regulator_unregister_notifier()
RESET
devm_reset_control_get()
@@ -428,6 +439,8 @@ SLAVE DMA ENGINE
devm_acpi_dma_controller_register()
SPI
+ devm_spi_alloc_master()
+ devm_spi_alloc_slave()
devm_spi_register_master()
WATCHDOG
diff --git a/Documentation/driver-api/firmware/core.rst b/Documentation/driver-api/firmware/core.rst
index 1d1688cbc078..803cd574bbd7 100644
--- a/Documentation/driver-api/firmware/core.rst
+++ b/Documentation/driver-api/firmware/core.rst
@@ -13,4 +13,5 @@ documents these features.
direct-fs-lookup
fallback-mechanisms
lookup-order
+ firmware-usage-guidelines
diff --git a/Documentation/driver-api/firmware/firmware-usage-guidelines.rst b/Documentation/driver-api/firmware/firmware-usage-guidelines.rst
new file mode 100644
index 000000000000..fdcfce42c6d2
--- /dev/null
+++ b/Documentation/driver-api/firmware/firmware-usage-guidelines.rst
@@ -0,0 +1,44 @@
+===================
+Firmware Guidelines
+===================
+
+Users switching to a newer kernel should *not* have to install newer
+firmware files to keep their hardware working. At the same time updated
+firmware files must not cause any regressions for users of older kernel
+releases.
+
+Drivers that use firmware from linux-firmware should follow the rules in
+this guide. (Where there is limited control of the firmware,
+i.e. company doesn't support Linux, firmwares sourced from misc places,
+then of course these rules will not apply strictly.)
+
+* Firmware files shall be designed in a way that it allows checking for
+ firmware ABI version changes. It is recommended that firmware files be
+ versioned with at least a major/minor version. It is suggested that
+ the firmware files in linux-firmware be named with some device
+ specific name, and just the major version. The firmware version should
+ be stored in the firmware header, or as an exception, as part of the
+ firmware file name, in order to let the driver detact any non-ABI
+ fixes/changes. The firmware files in linux-firmware should be
+ overwritten with the newest compatible major version. Newer major
+ version firmware shall remain compatible with all kernels that load
+ that major number.
+
+* If the kernel support for the hardware is normally inactive, or the
+ hardware isn't available for public consumption, this can
+ be ignored, until the first kernel release that enables that hardware.
+ This means no major version bumps without the kernel retaining
+ backwards compatibility for the older major versions. Minor version
+ bumps should not introduce new features that newer kernels depend on
+ non-optionally.
+
+* If a security fix needs lockstep firmware and kernel fixes in order to
+ be successful, then all supported major versions in the linux-firmware
+ repo that are required by currently supported stable/LTS kernels,
+ should be updated with the security fix. The kernel patches should
+ detect if the firmware is new enough to declare if the security issue
+ is fixed. All communications around security fixes should point at
+ both the firmware and kernel fixes. If a security fix requires
+ deprecating old major versions, then this should only be done as a
+ last option, and be stated clearly in all communications.
+
diff --git a/Documentation/driver-api/fpga/fpga-mgr.rst b/Documentation/driver-api/fpga/fpga-mgr.rst
index 42c01f396dce..49c0a9512653 100644
--- a/Documentation/driver-api/fpga/fpga-mgr.rst
+++ b/Documentation/driver-api/fpga/fpga-mgr.rst
@@ -79,12 +79,27 @@ do the programming sequence for this particular FPGA. These ops return 0 for
success or negative error codes otherwise.
The programming sequence is::
- 1. .write_init
- 2. .write or .write_sg (may be called once or multiple times)
- 3. .write_complete
-
-The .write_init function will prepare the FPGA to receive the image data. The
-buffer passed into .write_init will be at most .initial_header_size bytes long;
+ 1. .parse_header (optional, may be called once or multiple times)
+ 2. .write_init
+ 3. .write or .write_sg (may be called once or multiple times)
+ 4. .write_complete
+
+The .parse_header function will set header_size and data_size to
+struct fpga_image_info. Before parse_header call, header_size is initialized
+with initial_header_size. If flag skip_header of fpga_manager_ops is true,
+.write function will get image buffer starting at header_size offset from the
+beginning. If data_size is set, .write function will get data_size bytes of
+the image buffer, otherwise .write will get data up to the end of image buffer.
+This will not affect .write_sg, .write_sg will still get whole image in
+sg_table form. If FPGA image is already mapped as a single contiguous buffer,
+whole buffer will be passed into .parse_header. If image is in scatter-gather
+form, core code will buffer up at least .initial_header_size before the first
+call of .parse_header, if it is not enough, .parse_header should set desired
+size into info->header_size and return -EAGAIN, then it will be called again
+with greater part of image buffer on the input.
+
+The .write_init function will prepare the FPGA to receive the image data. The
+buffer passed into .write_init will be at least info->header_size bytes long;
if the whole bitstream is not immediately available then the core code will
buffer up at least this much before starting.
diff --git a/Documentation/driver-api/gpio/consumer.rst b/Documentation/driver-api/gpio/consumer.rst
index 72bcf5f5e3a2..de6fc79ad6f0 100644
--- a/Documentation/driver-api/gpio/consumer.rst
+++ b/Documentation/driver-api/gpio/consumer.rst
@@ -114,7 +114,7 @@ For a function using multiple GPIOs all of those can be obtained with one call::
This function returns a struct gpio_descs which contains an array of
descriptors. It also contains a pointer to a gpiolib private structure which,
-if passed back to get/set array functions, may speed up I/O proocessing::
+if passed back to get/set array functions, may speed up I/O processing::
struct gpio_descs {
struct gpio_array *info;
diff --git a/Documentation/driver-api/gpio/driver.rst b/Documentation/driver-api/gpio/driver.rst
index 70ff43ac4fcc..6baaeab79534 100644
--- a/Documentation/driver-api/gpio/driver.rst
+++ b/Documentation/driver-api/gpio/driver.rst
@@ -119,7 +119,7 @@ GPIO lines with debounce support
Debouncing is a configuration set to a pin indicating that it is connected to
a mechanical switch or button, or similar that may bounce. Bouncing means the
line is pulled high/low quickly at very short intervals for mechanical
-reasons. This can result in the value being unstable or irqs fireing repeatedly
+reasons. This can result in the value being unstable or irqs firing repeatedly
unless the line is debounced.
Debouncing in practice involves setting up a timer when something happens on
@@ -219,7 +219,7 @@ use a trick: when a line is set as output, if the line is flagged as open
drain, and the IN output value is low, it will be driven low as usual. But
if the IN output value is set to high, it will instead *NOT* be driven high,
instead it will be switched to input, as input mode is high impedance, thus
-achieveing an "open drain emulation" of sorts: electrically the behaviour will
+achieving an "open drain emulation" of sorts: electrically the behaviour will
be identical, with the exception of possible hardware glitches when switching
the mode of the line.
@@ -642,7 +642,7 @@ In this case the typical set-up will look like this:
As you can see pretty similar, but you do not supply a parent handler for
the IRQ, instead a parent irqdomain, an fwnode for the hardware and
-a funcion .child_to_parent_hwirq() that has the purpose of looking up
+a function .child_to_parent_hwirq() that has the purpose of looking up
the parent hardware irq from a child (i.e. this gpio chip) hardware irq.
As always it is good to look at examples in the kernel tree for advice
on how to find the required pieces.
diff --git a/Documentation/driver-api/gpio/using-gpio.rst b/Documentation/driver-api/gpio/using-gpio.rst
index 64c8d3f76c3a..894d88855d73 100644
--- a/Documentation/driver-api/gpio/using-gpio.rst
+++ b/Documentation/driver-api/gpio/using-gpio.rst
@@ -44,7 +44,7 @@ These devices will appear on the system as ``/dev/gpiochip0`` thru
found in the kernel tree ``tools/gpio`` subdirectory.
For structured and managed applications, we recommend that you make use of the
-libgpiod_ library. This provides helper abstractions, command line utlities
+libgpiod_ library. This provides helper abstractions, command line utilities
and arbitration for multiple simultaneous consumers on the same GPIO chip.
.. _libgpiod: https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git/
diff --git a/Documentation/driver-api/hte/tegra194-hte.rst b/Documentation/driver-api/hte/tegra194-hte.rst
index 41983e04d2a0..f2d617265546 100644
--- a/Documentation/driver-api/hte/tegra194-hte.rst
+++ b/Documentation/driver-api/hte/tegra194-hte.rst
@@ -25,8 +25,7 @@ and userspace consumers. The kernel space consumers can directly talk to HTE
subsystem while userspace consumers timestamp requests go through GPIOLIB CDEV
framework to HTE subsystem.
-.. kernel-doc:: drivers/gpio/gpiolib.c
- :functions: gpiod_enable_hw_timestamp_ns gpiod_disable_hw_timestamp_ns
+See gpiod_enable_hw_timestamp_ns() and gpiod_disable_hw_timestamp_ns().
For userspace consumers, GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE flag must be
specified during IOCTL calls. Refer to ``tools/gpio/gpio-event-mon.c``, which
@@ -37,7 +36,7 @@ LIC (Legacy Interrupt Controller) IRQ GTE
This GTE instance timestamps LIC IRQ lines in real time. There are 352 IRQ
lines which this instance can add timestamps to in real time. The hte
-devicetree binding described at ``Documentation/devicetree/bindings/hte/``
+devicetree binding described at ``Documentation/devicetree/bindings/timestamp``
provides an example of how a consumer can request an IRQ line. Since it is a
one-to-one mapping with IRQ GTE provider, consumers can simply specify the IRQ
number that they are interested in. There is no userspace consumer support for
diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst
index a6d525cd9fc4..d3a58f77328e 100644
--- a/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst
@@ -27,6 +27,7 @@ available subsections can be seen below.
component
message-based
infiniband
+ aperture
frame-buffer
regulator
reset
diff --git a/Documentation/driver-api/isa.rst b/Documentation/driver-api/isa.rst
index def4a7b690b5..3df1b1696524 100644
--- a/Documentation/driver-api/isa.rst
+++ b/Documentation/driver-api/isa.rst
@@ -100,7 +100,7 @@ I believe platform_data is available for this, but if rather not, moving
the isa_driver pointer to the private struct isa_dev is ofcourse fine as
well.
-Then, if the the driver did not provide a .match, it matches. If it did,
+Then, if the driver did not provide a .match, it matches. If it did,
the driver match() method is called to determine a match.
If it did **not** match, dev->platform_data is reset to indicate this to
diff --git a/Documentation/driver-api/media/drivers/pxa_camera.rst b/Documentation/driver-api/media/drivers/pxa_camera.rst
index ee1bd96b66dd..46919919baac 100644
--- a/Documentation/driver-api/media/drivers/pxa_camera.rst
+++ b/Documentation/driver-api/media/drivers/pxa_camera.rst
@@ -19,7 +19,7 @@ Global video workflow
a) QCI stopped
Initially, the QCI interface is stopped.
- When a buffer is queued (pxa_videobuf_ops->buf_queue), the QCI starts.
+ When a buffer is queued, start_streaming is called and the QCI starts.
b) QCI started
More buffers can be queued while the QCI is started without halting the
diff --git a/Documentation/driver-api/media/mc-core.rst b/Documentation/driver-api/media/mc-core.rst
index 02481a2513b9..84aa7cdb5341 100644
--- a/Documentation/driver-api/media/mc-core.rst
+++ b/Documentation/driver-api/media/mc-core.rst
@@ -186,8 +186,9 @@ is required and the graph structure can be freed normally.
Helper functions can be used to find a link between two given pads, or a pad
connected to another pad through an enabled link
-:c:func:`media_entity_find_link()` and
-:c:func:`media_entity_remote_pad()`.
+(:c:func:`media_entity_find_link()`, :c:func:`media_pad_remote_pad_first()`,
+:c:func:`media_entity_remote_source_pad_unique()` and
+:c:func:`media_pad_remote_pad_unique()`).
Use count and power handling
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/Documentation/driver-api/media/v4l2-subdev.rst b/Documentation/driver-api/media/v4l2-subdev.rst
index cf3b52bdbfb9..6f8d79926aa5 100644
--- a/Documentation/driver-api/media/v4l2-subdev.rst
+++ b/Documentation/driver-api/media/v4l2-subdev.rst
@@ -243,6 +243,12 @@ notifier callback is called. After all subdevices have been located the
.complete() callback is called. When a subdevice is removed from the
system the .unbind() method is called. All three callbacks are optional.
+Drivers can store any type of custom data in their driver-specific
+:c:type:`v4l2_async_subdev` wrapper. If any of that data requires special
+handling when the structure is freed, drivers must implement the ``.destroy()``
+notifier callback. The framework will call it right before freeing the
+:c:type:`v4l2_async_subdev`.
+
Calling subdev operations
~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/Documentation/driver-api/pwm.rst b/Documentation/driver-api/pwm.rst
index fd26c3d895b6..8c71a2055d27 100644
--- a/Documentation/driver-api/pwm.rst
+++ b/Documentation/driver-api/pwm.rst
@@ -40,8 +40,7 @@ after usage with pwm_free().
New users should use the pwm_get() function and pass to it the consumer
device or a consumer name. pwm_put() is used to free the PWM device. Managed
-variants of the getter, devm_pwm_get(), devm_of_pwm_get(),
-devm_fwnode_pwm_get(), also exist.
+variants of the getter, devm_pwm_get() and devm_fwnode_pwm_get(), also exist.
After being requested, a PWM has to be configured using::
diff --git a/Documentation/driver-api/serial/driver.rst b/Documentation/driver-api/serial/driver.rst
index 7ef83fd3917b..23c6b956cd90 100644
--- a/Documentation/driver-api/serial/driver.rst
+++ b/Documentation/driver-api/serial/driver.rst
@@ -25,10 +25,10 @@ Console Support
---------------
The serial core provides a few helper functions. This includes identifing
-the correct port structure (via uart_get_console) and decoding command line
-arguments (uart_parse_options).
+the correct port structure (via uart_get_console()) and decoding command line
+arguments (uart_parse_options()).
-There is also a helper function (uart_console_write) which performs a
+There is also a helper function (uart_console_write()) which performs a
character by character write, translating newlines to CRLF sequences.
Driver writers are recommended to use this function rather than implementing
their own version.
@@ -39,7 +39,7 @@ Locking
It is the responsibility of the low level hardware driver to perform the
necessary locking using port->lock. There are some exceptions (which
-are described in the uart_ops listing below.)
+are described in the struct uart_ops listing below.)
There are two locks. A per-port spinlock, and an overall semaphore.
@@ -63,442 +63,20 @@ commonly referred to as the port mutex.
uart_ops
--------
-The uart_ops structure is the main interface between serial_core and the
-hardware specific driver. It contains all the methods to control the
-hardware.
-
- tx_empty(port)
- This function tests whether the transmitter fifo and shifter
- for the port described by 'port' is empty. If it is empty,
- this function should return TIOCSER_TEMT, otherwise return 0.
- If the port does not support this operation, then it should
- return TIOCSER_TEMT.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- This call must not sleep
-
- set_mctrl(port, mctrl)
- This function sets the modem control lines for port described
- by 'port' to the state described by mctrl. The relevant bits
- of mctrl are:
-
- - TIOCM_RTS RTS signal.
- - TIOCM_DTR DTR signal.
- - TIOCM_OUT1 OUT1 signal.
- - TIOCM_OUT2 OUT2 signal.
- - TIOCM_LOOP Set the port into loopback mode.
-
- If the appropriate bit is set, the signal should be driven
- active. If the bit is clear, the signal should be driven
- inactive.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- get_mctrl(port)
- Returns the current state of modem control inputs. The state
- of the outputs should not be returned, since the core keeps
- track of their state. The state information should include:
-
- - TIOCM_CAR state of DCD signal
- - TIOCM_CTS state of CTS signal
- - TIOCM_DSR state of DSR signal
- - TIOCM_RI state of RI signal
-
- The bit is set if the signal is currently driven active. If
- the port does not support CTS, DCD or DSR, the driver should
- indicate that the signal is permanently active. If RI is
- not available, the signal should not be indicated as active.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- stop_tx(port)
- Stop transmitting characters. This might be due to the CTS
- line becoming inactive or the tty layer indicating we want
- to stop transmission due to an XOFF character.
-
- The driver should stop transmitting characters as soon as
- possible.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- start_tx(port)
- Start transmitting characters.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- throttle(port)
- Notify the serial driver that input buffers for the line discipline are
- close to full, and it should somehow signal that no more characters
- should be sent to the serial port.
- This will be called only if hardware assisted flow control is enabled.
-
- Locking: serialized with .unthrottle() and termios modification by the
- tty layer.
-
- unthrottle(port)
- Notify the serial driver that characters can now be sent to the serial
- port without fear of overrunning the input buffers of the line
- disciplines.
-
- This will be called only if hardware assisted flow control is enabled.
-
- Locking: serialized with .throttle() and termios modification by the
- tty layer.
-
- send_xchar(port,ch)
- Transmit a high priority character, even if the port is stopped.
- This is used to implement XON/XOFF flow control and tcflow(). If
- the serial driver does not implement this function, the tty core
- will append the character to the circular buffer and then call
- start_tx() / stop_tx() to flush the data out.
-
- Do not transmit if ch == '\0' (__DISABLED_CHAR).
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- stop_rx(port)
- Stop receiving characters; the port is in the process of
- being closed.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- enable_ms(port)
- Enable the modem status interrupts.
-
- This method may be called multiple times. Modem status
- interrupts should be disabled when the shutdown method is
- called.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- break_ctl(port,ctl)
- Control the transmission of a break signal. If ctl is
- nonzero, the break signal should be transmitted. The signal
- should be terminated when another call is made with a zero
- ctl.
-
- Locking: caller holds tty_port->mutex
-
- startup(port)
- Grab any interrupt resources and initialise any low level driver
- state. Enable the port for reception. It should not activate
- RTS nor DTR; this will be done via a separate call to set_mctrl.
-
- This method will only be called when the port is initially opened.
-
- Locking: port_sem taken.
-
- Interrupts: globally disabled.
-
- shutdown(port)
- Disable the port, disable any break condition that may be in
- effect, and free any interrupt resources. It should not disable
- RTS nor DTR; this will have already been done via a separate
- call to set_mctrl.
-
- Drivers must not access port->state once this call has completed.
-
- This method will only be called when there are no more users of
- this port.
-
- Locking: port_sem taken.
-
- Interrupts: caller dependent.
-
- flush_buffer(port)
- Flush any write buffers, reset any DMA state and stop any
- ongoing DMA transfers.
-
- This will be called whenever the port->state->xmit circular
- buffer is cleared.
-
- Locking: port->lock taken.
-
- Interrupts: locally disabled.
-
- This call must not sleep
-
- set_termios(port,termios,oldtermios)
- Change the port parameters, including word length, parity, stop
- bits. Update read_status_mask and ignore_status_mask to indicate
- the types of events we are interested in receiving. Relevant
- termios->c_cflag bits are:
-
- CSIZE
- - word size
- CSTOPB
- - 2 stop bits
- PARENB
- - parity enable
- PARODD
- - odd parity (when PARENB is in force)
- CREAD
- - enable reception of characters (if not set,
- still receive characters from the port, but
- throw them away.
- CRTSCTS
- - if set, enable CTS status change reporting
- CLOCAL
- - if not set, enable modem status change
- reporting.
-
- Relevant termios->c_iflag bits are:
-
- INPCK
- - enable frame and parity error events to be
- passed to the TTY layer.
- BRKINT / PARMRK
- - both of these enable break events to be
- passed to the TTY layer.
-
- IGNPAR
- - ignore parity and framing errors
- IGNBRK
- - ignore break errors, If IGNPAR is also
- set, ignore overrun errors as well.
-
- The interaction of the iflag bits is as follows (parity error
- given as an example):
-
- =============== ======= ====== =============================
- Parity error INPCK IGNPAR
- =============== ======= ====== =============================
- n/a 0 n/a character received, marked as
- TTY_NORMAL
- None 1 n/a character received, marked as
- TTY_NORMAL
- Yes 1 0 character received, marked as
- TTY_PARITY
- Yes 1 1 character discarded
- =============== ======= ====== =============================
-
- Other flags may be used (eg, xon/xoff characters) if your
- hardware supports hardware "soft" flow control.
-
- Locking: caller holds tty_port->mutex
-
- Interrupts: caller dependent.
-
- This call must not sleep
-
- set_ldisc(port,termios)
- Notifier for discipline change. See ../tty/tty_ldisc.rst.
-
- Locking: caller holds tty_port->mutex
-
- pm(port,state,oldstate)
- Perform any power management related activities on the specified
- port. State indicates the new state (defined by
- enum uart_pm_state), oldstate indicates the previous state.
-
- This function should not be used to grab any resources.
-
- This will be called when the port is initially opened and finally
- closed, except when the port is also the system console. This
- will occur even if CONFIG_PM is not set.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- type(port)
- Return a pointer to a string constant describing the specified
- port, or return NULL, in which case the string 'unknown' is
- substituted.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- release_port(port)
- Release any memory and IO region resources currently in use by
- the port.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- request_port(port)
- Request any memory and IO region resources required by the port.
- If any fail, no resources should be registered when this function
- returns, and it should return -EBUSY on failure.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- config_port(port,type)
- Perform any autoconfiguration steps required for the port. `type`
- contains a bit mask of the required configuration. UART_CONFIG_TYPE
- indicates that the port requires detection and identification.
- port->type should be set to the type found, or PORT_UNKNOWN if
- no port was detected.
-
- UART_CONFIG_IRQ indicates autoconfiguration of the interrupt signal,
- which should be probed using standard kernel autoprobing techniques.
- This is not necessary on platforms where ports have interrupts
- internally hard wired (eg, system on a chip implementations).
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- verify_port(port,serinfo)
- Verify the new serial port information contained within serinfo is
- suitable for this port type.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- ioctl(port,cmd,arg)
- Perform any port specific IOCTLs. IOCTL commands must be defined
- using the standard numbering system found in <asm/ioctl.h>
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- poll_init(port)
- Called by kgdb to perform the minimal hardware initialization needed
- to support poll_put_char() and poll_get_char(). Unlike ->startup()
- this should not request interrupts.
-
- Locking: tty_mutex and tty_port->mutex taken.
-
- Interrupts: n/a.
-
- poll_put_char(port,ch)
- Called by kgdb to write a single character directly to the serial
- port. It can and should block until there is space in the TX FIFO.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- This call must not sleep
-
- poll_get_char(port)
- Called by kgdb to read a single character directly from the serial
- port. If data is available, it should be returned; otherwise
- the function should return NO_POLL_CHAR immediately.
-
- Locking: none.
-
- Interrupts: caller dependent.
-
- This call must not sleep
+.. kernel-doc:: include/linux/serial_core.h
+ :identifiers: uart_ops
Other functions
---------------
-uart_update_timeout(port,cflag,baud)
- Update the FIFO drain timeout, port->timeout, according to the
- number of bits, parity, stop bits and baud rate.
-
- Locking: caller is expected to take port->lock
-
- Interrupts: n/a
-
-uart_get_baud_rate(port,termios,old,min,max)
- Return the numeric baud rate for the specified termios, taking
- account of the special 38400 baud "kludge". The B0 baud rate
- is mapped to 9600 baud.
-
- If the baud rate is not within min..max, then if old is non-NULL,
- the original baud rate will be tried. If that exceeds the
- min..max constraint, 9600 baud will be returned. termios will
- be updated to the baud rate in use.
-
- Note: min..max must always allow 9600 baud to be selected.
-
- Locking: caller dependent.
-
- Interrupts: n/a
-
-uart_get_divisor(port,baud)
- Return the divisor (baud_base / baud) for the specified baud
- rate, appropriately rounded.
-
- If 38400 baud and custom divisor is selected, return the
- custom divisor instead.
-
- Locking: caller dependent.
-
- Interrupts: n/a
-
-uart_match_port(port1,port2)
- This utility function can be used to determine whether two
- uart_port structures describe the same port.
-
- Locking: n/a
-
- Interrupts: n/a
-
-uart_write_wakeup(port)
- A driver is expected to call this function when the number of
- characters in the transmit buffer have dropped below a threshold.
-
- Locking: port->lock should be held.
-
- Interrupts: n/a
-
-uart_register_driver(drv)
- Register a uart driver with the core driver. We in turn register
- with the tty layer, and initialise the core driver per-port state.
-
- drv->port should be NULL, and the per-port structures should be
- registered using uart_add_one_port after this call has succeeded.
-
- Locking: none
-
- Interrupts: enabled
-
-uart_unregister_driver()
- Remove all references to a driver from the core driver. The low
- level driver must have removed all its ports via the
- uart_remove_one_port() if it registered them with uart_add_one_port().
-
- Locking: none
-
- Interrupts: enabled
-
-**uart_suspend_port()**
-
-**uart_resume_port()**
-
-**uart_add_one_port()**
-
-**uart_remove_one_port()**
+.. kernel-doc:: drivers/tty/serial/serial_core.c
+ :identifiers: uart_update_timeout uart_get_baud_rate uart_get_divisor
+ uart_match_port uart_write_wakeup uart_register_driver
+ uart_unregister_driver uart_suspend_port uart_resume_port
+ uart_add_one_port uart_remove_one_port uart_console_write
+ uart_parse_earlycon uart_parse_options uart_set_options
+ uart_get_lsr_info uart_handle_dcd_change uart_handle_cts_change
+ uart_try_toggle_sysrq uart_get_console
Other notes
-----------
@@ -519,31 +97,7 @@ Modem control lines via GPIO
Some helpers are provided in order to set/get modem control lines via GPIO.
-mctrl_gpio_init(port, idx):
- This will get the {cts,rts,...}-gpios from device tree if they are
- present and request them, set direction etc, and return an
- allocated structure. `devm_*` functions are used, so there's no need
- to call mctrl_gpio_free().
- As this sets up the irq handling make sure to not handle changes to the
- gpio input lines in your driver, too.
-
-mctrl_gpio_free(dev, gpios):
- This will free the requested gpios in mctrl_gpio_init().
- As `devm_*` functions are used, there's generally no need to call
- this function.
-
-mctrl_gpio_to_gpiod(gpios, gidx)
- This returns the gpio_desc structure associated to the modem line
- index.
-
-mctrl_gpio_set(gpios, mctrl):
- This will sets the gpios according to the mctrl state.
-
-mctrl_gpio_get(gpios, mctrl):
- This will update mctrl with the gpios values.
-
-mctrl_gpio_enable_ms(gpios):
- Enables irqs and handling of changes to the ms lines.
-
-mctrl_gpio_disable_ms(gpios):
- Disables irqs and handling of changes to the ms lines.
+.. kernel-doc:: drivers/tty/serial/serial_mctrl_gpio.c
+ :identifiers: mctrl_gpio_init mctrl_gpio_free mctrl_gpio_to_gpiod
+ mctrl_gpio_set mctrl_gpio_get mctrl_gpio_enable_ms
+ mctrl_gpio_disable_ms
diff --git a/Documentation/driver-api/serial/serial-rs485.rst b/Documentation/driver-api/serial/serial-rs485.rst
index 6bc824f948f9..6ebad75c74ed 100644
--- a/Documentation/driver-api/serial/serial-rs485.rst
+++ b/Documentation/driver-api/serial/serial-rs485.rst
@@ -38,10 +38,14 @@ RS485 Serial Communications
the values given by the device tree.
Any driver for devices capable of working both as RS232 and RS485 should
- implement the rs485_config callback in the uart_port structure. The
- serial_core calls rs485_config to do the device specific part in response
- to TIOCSRS485 and TIOCGRS485 ioctls (see below). The rs485_config callback
- receives a pointer to struct serial_rs485.
+ implement the rs485_config callback and provide rs485_supported in the
+ uart_port structure. The serial core calls rs485_config to do the device
+ specific part in response to TIOCSRS485 ioctl (see below). The rs485_config
+ callback receives a pointer to a sanitizated serial_rs485 structure. The
+ serial_rs485 userspace provides is sanitized before calling rs485_config
+ using rs485_supported that indicates what RS485 features the driver supports
+ for the uart_port. TIOCGRS485 ioctl can be used to read back the
+ serial_rs485 structure matching to the current configuration.
4. Usage from user-level
========================
@@ -95,7 +99,31 @@ RS485 Serial Communications
/* Error handling. See errno. */
}
-5. References
+5. Multipoint Addressing
+========================
+
+ The Linux kernel provides addressing mode for multipoint RS-485 serial
+ communications line. The addressing mode is enabled with SER_RS485_ADDRB
+ flag in serial_rs485. Struct serial_rs485 has two additional flags and
+ fields for enabling receive and destination addresses.
+
+ Address mode flags:
+ - SER_RS485_ADDRB: Enabled addressing mode (sets also ADDRB in termios).
+ - SER_RS485_ADDR_RECV: Receive (filter) address enabled.
+ - SER_RS485_ADDR_DEST: Set destination address.
+
+ Address fields (enabled with corresponding SER_RS485_ADDR_* flag):
+ - addr_recv: Receive address.
+ - addr_dest: Destination address.
+
+ Once a receive address is set, the communication can occur only with the
+ particular device and other peers are filtered out. It is left up to the
+ receiver side to enforce the filtering. Receive address will be cleared
+ if SER_RS485_ADDR_RECV is not set.
+
+ Note: not all devices supporting RS485 support multipoint addressing.
+
+6. References
=============
[1] include/uapi/linux/serial.h
diff --git a/Documentation/driver-api/surface_aggregator/client.rst b/Documentation/driver-api/surface_aggregator/client.rst
index e519d374c378..27f95abdbe99 100644
--- a/Documentation/driver-api/surface_aggregator/client.rst
+++ b/Documentation/driver-api/surface_aggregator/client.rst
@@ -17,6 +17,8 @@
.. |SSAM_DEVICE| replace:: :c:func:`SSAM_DEVICE`
.. |ssam_notifier_register| replace:: :c:func:`ssam_notifier_register`
.. |ssam_notifier_unregister| replace:: :c:func:`ssam_notifier_unregister`
+.. |ssam_device_notifier_register| replace:: :c:func:`ssam_device_notifier_register`
+.. |ssam_device_notifier_unregister| replace:: :c:func:`ssam_device_notifier_unregister`
.. |ssam_request_sync| replace:: :c:func:`ssam_request_sync`
.. |ssam_event_mask| replace:: :c:type:`enum ssam_event_mask <ssam_event_mask>`
@@ -312,7 +314,9 @@ Handling Events
To receive events from the SAM EC, an event notifier must be registered for
the desired event via |ssam_notifier_register|. The notifier must be
unregistered via |ssam_notifier_unregister| once it is not required any
-more.
+more. For |ssam_device| type clients, the |ssam_device_notifier_register| and
+|ssam_device_notifier_unregister| wrappers should be preferred as they properly
+handle hot-removal of client devices.
Event notifiers are registered by providing (at minimum) a callback to call
in case an event has been received, the registry specifying how the event
diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst
index eded8719180f..f47dca6645aa 100644
--- a/Documentation/driver-api/vfio-mediated-device.rst
+++ b/Documentation/driver-api/vfio-mediated-device.rst
@@ -1,3 +1,4 @@
+.. SPDX-License-Identifier: GPL-2.0-only
.. include:: <isonum.txt>
=====================
@@ -8,9 +9,6 @@ VFIO Mediated devices
:Author: Neo Jia <cjia@nvidia.com>
:Author: Kirti Wankhede <kwankhede@nvidia.com>
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License version 2 as
-published by the Free Software Foundation.
Virtual Function I/O (VFIO) Mediated devices[1]
@@ -114,11 +112,11 @@ to register and unregister itself with the core driver:
* Register::
- extern int mdev_register_driver(struct mdev_driver *drv);
+ int mdev_register_driver(struct mdev_driver *drv);
* Unregister::
- extern void mdev_unregister_driver(struct mdev_driver *drv);
+ void mdev_unregister_driver(struct mdev_driver *drv);
The mediated bus driver's probe function should create a vfio_device on top of
the mdev_device and connect it to an appropriate implementation of
@@ -127,8 +125,8 @@ vfio_device_ops.
When a driver wants to add the GUID creation sysfs to an existing device it has
probe'd to then it should call::
- extern int mdev_register_device(struct device *dev,
- struct mdev_driver *mdev_driver);
+ int mdev_register_device(struct device *dev,
+ struct mdev_driver *mdev_driver);
This will provide the 'mdev_supported_types/XX/create' files which can then be
used to trigger the creation of a mdev_device. The created mdev_device will be
@@ -136,7 +134,7 @@ attached to the specified driver.
When the driver needs to remove itself it calls::
- extern void mdev_unregister_device(struct device *dev);
+ void mdev_unregister_device(struct device *dev);
Which will unbind and destroy all the created mdevs and remove the sysfs files.
@@ -262,10 +260,10 @@ Translation APIs for Mediated Devices
The following APIs are provided for translating user pfn to host pfn in a VFIO
driver::
- int vfio_pin_pages(struct vfio_device *device, unsigned long *user_pfn,
- int npage, int prot, unsigned long *phys_pfn);
+ int vfio_pin_pages(struct vfio_device *device, dma_addr_t iova,
+ int npage, int prot, struct page **pages);
- int vfio_unpin_pages(struct vfio_device *device, unsigned long *user_pfn,
+ void vfio_unpin_pages(struct vfio_device *device, dma_addr_t iova,
int npage);
These functions call back into the back-end IOMMU module by using the pin_pages
diff --git a/Documentation/driver-api/vme.rst b/Documentation/driver-api/vme.rst
index def139c13410..c0b475369de0 100644
--- a/Documentation/driver-api/vme.rst
+++ b/Documentation/driver-api/vme.rst
@@ -290,8 +290,8 @@ The function :c:func:`vme_bus_num` returns the bus ID of the provided bridge.
VME API
-------
-.. kernel-doc:: include/linux/vme.h
+.. kernel-doc:: drivers/staging/vme_user/vme.h
:internal:
-.. kernel-doc:: drivers/vme/vme.c
+.. kernel-doc:: drivers/staging/vme_user/vme.c
:export:
diff --git a/Documentation/fault-injection/fault-injection.rst b/Documentation/fault-injection/fault-injection.rst
index eb9c2d9a4f5f..17779a2772e5 100644
--- a/Documentation/fault-injection/fault-injection.rst
+++ b/Documentation/fault-injection/fault-injection.rst
@@ -169,6 +169,13 @@ configuration of fault-injection capabilities.
default is 'N', setting it to 'Y' will disable disconnect
injection on the RPC server.
+- /sys/kernel/debug/fail_sunrpc/ignore-cache-wait:
+
+ Format: { 'Y' | 'N' }
+
+ default is 'N', setting it to 'Y' will disable cache wait
+ injection on the RPC server.
+
- /sys/kernel/debug/fail_function/inject:
Format: { 'function-name' | '!function-name' | '' }
diff --git a/Documentation/fb/udlfb.rst b/Documentation/fb/udlfb.rst
index 732b37db3504..99cfbb7a1922 100644
--- a/Documentation/fb/udlfb.rst
+++ b/Documentation/fb/udlfb.rst
@@ -86,17 +86,24 @@ Module Options
Special configuration for udlfb is usually unnecessary. There are a few
options, however.
-From the command line, pass options to modprobe
-modprobe udlfb fb_defio=0 console=1 shadow=1
+From the command line, pass options to modprobe::
-Or modify options on the fly at /sys/module/udlfb/parameters directory via
-sudo nano fb_defio
-change the parameter in place, and save the file.
+ modprobe udlfb fb_defio=0 console=1 shadow=1
-Unplug/replug USB device to apply with new settings
+Or change options on the fly by editing
+/sys/module/udlfb/parameters/PARAMETER_NAME ::
-Or for permanent option, create file like /etc/modprobe.d/udlfb.conf with text
-options udlfb fb_defio=0 console=1 shadow=1
+ cd /sys/module/udlfb/parameters
+ ls # to see a list of parameter names
+ sudo nano PARAMETER_NAME
+ # change the parameter in place, and save the file.
+
+Unplug/replug USB device to apply with new settings.
+
+Or to apply options permanently, create a modprobe configuration file
+like /etc/modprobe.d/udlfb.conf with text::
+
+ options udlfb fb_defio=0 console=1 shadow=1
Accepted boolean options:
diff --git a/Documentation/features/debug/gcov-profile-all/arch-support.txt b/Documentation/features/debug/gcov-profile-all/arch-support.txt
index 502c1d409648..0b3ba2415fac 100644
--- a/Documentation/features/debug/gcov-profile-all/arch-support.txt
+++ b/Documentation/features/debug/gcov-profile-all/arch-support.txt
@@ -27,5 +27,5 @@
| sparc: | TODO |
| um: | ok |
| x86: | ok |
- | xtensa: | TODO |
+ | xtensa: | ok |
-----------------------
diff --git a/Documentation/features/debug/kcov/arch-support.txt b/Documentation/features/debug/kcov/arch-support.txt
index afb90bebded2..0a91f5ce34a9 100644
--- a/Documentation/features/debug/kcov/arch-support.txt
+++ b/Documentation/features/debug/kcov/arch-support.txt
@@ -27,5 +27,5 @@
| sparc: | TODO |
| um: | ok |
| x86: | ok |
- | xtensa: | TODO |
+ | xtensa: | ok |
-----------------------
diff --git a/Documentation/features/time/context-tracking/arch-support.txt b/Documentation/features/time/context-tracking/arch-support.txt
index c9e0a16290e6..e59071a49090 100644
--- a/Documentation/features/time/context-tracking/arch-support.txt
+++ b/Documentation/features/time/context-tracking/arch-support.txt
@@ -1,7 +1,7 @@
#
-# Feature name: context-tracking
-# Kconfig: HAVE_CONTEXT_TRACKING
-# description: arch supports context tracking for NO_HZ_FULL
+# Feature name: user-context-tracking
+# Kconfig: HAVE_CONTEXT_TRACKING_USER
+# description: arch supports user context tracking for NO_HZ_FULL
#
-----------------------
| arch |status|
diff --git a/Documentation/features/vm/ioremap_prot/arch-support.txt b/Documentation/features/vm/ioremap_prot/arch-support.txt
index b01bf7bca3e6..6bd78eb4dc6e 100644
--- a/Documentation/features/vm/ioremap_prot/arch-support.txt
+++ b/Documentation/features/vm/ioremap_prot/arch-support.txt
@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | ok |
| arm: | TODO |
- | arm64: | TODO |
+ | arm64: | ok |
| csky: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
diff --git a/Documentation/filesystems/caching/backend-api.rst b/Documentation/filesystems/caching/backend-api.rst
index d7507becf674..3a199fc50828 100644
--- a/Documentation/filesystems/caching/backend-api.rst
+++ b/Documentation/filesystems/caching/backend-api.rst
@@ -122,7 +122,7 @@ volumes, calling::
to tell fscache that a volume has been withdrawn. This waits for all
outstanding accesses on the volume to complete before returning.
-When the the cache is completely withdrawn, fscache should be notified by
+When the cache is completely withdrawn, fscache should be notified by
calling::
void fscache_relinquish_cache(struct fscache_cache *cache);
diff --git a/Documentation/filesystems/cifs/ksmbd.rst b/Documentation/filesystems/cifs/ksmbd.rst
index 1af600db2e70..7bed96d794fc 100644
--- a/Documentation/filesystems/cifs/ksmbd.rst
+++ b/Documentation/filesystems/cifs/ksmbd.rst
@@ -118,26 +118,44 @@ ksmbd/nfsd interoperability Planned for future. The features that ksmbd
How to run
==========
-1. Download ksmbd-tools and compile them.
- - https://github.com/cifsd-team/ksmbd-tools
+1. Download ksmbd-tools(https://github.com/cifsd-team/ksmbd-tools/releases) and
+ compile them.
-2. Create user/password for SMB share.
+ - Refer README(https://github.com/cifsd-team/ksmbd-tools/blob/master/README.md)
+ to know how to use ksmbd.mountd/adduser/addshare/control utils
- # mkdir /etc/ksmbd/
- # ksmbd.adduser -a <Enter USERNAME for SMB share access>
+ $ ./autogen.sh
+ $ ./configure --with-rundir=/run
+ $ make && sudo make install
-3. Create /etc/ksmbd/smb.conf file, add SMB share in smb.conf file
- - Refer smb.conf.example and
- https://github.com/cifsd-team/ksmbd-tools/blob/master/Documentation/configuration.txt
+2. Create /usr/local/etc/ksmbd/ksmbd.conf file, add SMB share in ksmbd.conf file.
-4. Insert ksmbd.ko module
+ - Refer ksmbd.conf.example in ksmbd-utils, See ksmbd.conf manpage
+ for details to configure shares.
- # insmod ksmbd.ko
+ $ man ksmbd.conf
+
+3. Create user/password for SMB share.
+
+ - See ksmbd.adduser manpage.
+
+ $ man ksmbd.adduser
+ $ sudo ksmbd.adduser -a <Enter USERNAME for SMB share access>
+
+4. Insert ksmbd.ko module after build your kernel. No need to load module
+ if ksmbd is built into the kernel.
+
+ - Set ksmbd in menuconfig(e.g. $ make menuconfig)
+ [*] Network File Systems --->
+ <M> SMB3 server support (EXPERIMENTAL)
+
+ $ sudo modprobe ksmbd.ko
5. Start ksmbd user space daemon
- # ksmbd.mountd
-6. Access share from Windows or Linux using CIFS
+ $ sudo ksmbd.mountd
+
+6. Access share from Windows or Linux using SMB3 client (cifs.ko or smbclient of samba)
Shutdown KSMBD
==============
diff --git a/Documentation/filesystems/ext2.rst b/Documentation/filesystems/ext2.rst
index 154101cf0e4f..92aae683e16a 100644
--- a/Documentation/filesystems/ext2.rst
+++ b/Documentation/filesystems/ext2.rst
@@ -59,8 +59,6 @@ acl Enable POSIX Access Control Lists support
(requires CONFIG_EXT2_FS_POSIX_ACL).
noacl Don't support POSIX ACLs.
-nobh Do not attach buffer_heads to file pagecache.
-
quota, usrquota Enable user disk quota support
(requires CONFIG_QUOTA).
diff --git a/Documentation/filesystems/ext4/blockmap.rst b/Documentation/filesystems/ext4/blockmap.rst
index 2bd990402a5c..cc596541ce79 100644
--- a/Documentation/filesystems/ext4/blockmap.rst
+++ b/Documentation/filesystems/ext4/blockmap.rst
@@ -1,7 +1,7 @@
.. SPDX-License-Identifier: GPL-2.0
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
-| i.i_block Offset | Where It Points |
+| i.i_block Offset | Where It Points |
+=====================+==============================================================================================================================================================================================================================+
| 0 to 11 | Direct map to file blocks 0 to 11. |
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
diff --git a/Documentation/filesystems/ext4/super.rst b/Documentation/filesystems/ext4/super.rst
index 268888522e35..0152888cac29 100644
--- a/Documentation/filesystems/ext4/super.rst
+++ b/Documentation/filesystems/ext4/super.rst
@@ -456,15 +456,15 @@ The ext4 superblock is laid out as follows in
* - 0x277
- __u8
- s_lastcheck_hi
- - Upper 8 bits of the s_lastcheck_hi field.
+ - Upper 8 bits of the s_lastcheck field.
* - 0x278
- __u8
- s_first_error_time_hi
- - Upper 8 bits of the s_first_error_time_hi field.
+ - Upper 8 bits of the s_first_error_time field.
* - 0x279
- __u8
- s_last_error_time_hi
- - Upper 8 bits of the s_last_error_time_hi field.
+ - Upper 8 bits of the s_last_error_time field.
* - 0x27A
- __u8
- s_pad[2]
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index ad8dc8c040a2..17df9a02ccff 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -286,9 +286,8 @@ compress_algorithm=%s:%d Control compress algorithm and its compress level, now,
algorithm level range
lz4 3 - 16
zstd 1 - 22
-compress_log_size=%u Support configuring compress cluster size, the size will
- be 4KB * (1 << %u), 16KB is minimum size, also it's
- default size.
+compress_log_size=%u Support configuring compress cluster size. The size will
+ be 4KB * (1 << %u). The default and minimum sizes are 16KB.
compress_extension=%s Support adding specified extension, so that f2fs can enable
compression on those corresponding files, e.g. if all files
with '.ext' has high compression rate, we can set the '.ext'
@@ -336,6 +335,11 @@ discard_unit=%s Control discard unit, the argument can be "block", "segment"
default, it is helpful for large sized SMR or ZNS devices to
reduce memory cost by getting rid of fs metadata supports small
discard.
+memory=%s Control memory mode. This supports "normal" and "low" modes.
+ "low" mode is introduced to support low memory devices.
+ Because of the nature of low memory devices, in this mode, f2fs
+ will try to save memory sometimes by sacrificing performance.
+ "normal" mode is the default mode and same as before.
======================== ============================================================
Debugfs Entries
@@ -818,10 +822,11 @@ Compression implementation
Instead, the main goal is to reduce data writes to flash disk as much as
possible, resulting in extending disk life time as well as relaxing IO
congestion. Alternatively, we've added ioctl(F2FS_IOC_RELEASE_COMPRESS_BLOCKS)
- interface to reclaim compressed space and show it to user after putting the
- immutable bit. Immutable bit, after release, it doesn't allow writing/mmaping
- on the file, until reserving compressed space via
- ioctl(F2FS_IOC_RESERVE_COMPRESS_BLOCKS) or truncating filesize to zero.
+ interface to reclaim compressed space and show it to user after setting a
+ special flag to the inode. Once the compressed space is released, the flag
+ will block writing data to the file until either the compressed space is
+ reserved via ioctl(F2FS_IOC_RESERVE_COMPRESS_BLOCKS) or the file size is
+ truncated to zero.
Compress metadata layout::
@@ -830,12 +835,12 @@ Compress metadata layout::
| cluster 1 | cluster 2 | ......... | cluster N |
+-----------------------------------------------+
. . . .
- . . . .
+ . . . .
. Compressed Cluster . . Normal Cluster .
+----------+---------+---------+---------+ +---------+---------+---------+---------+
|compr flag| block 1 | block 2 | block 3 | | block 1 | block 2 | block 3 | block 4 |
+----------+---------+---------+---------+ +---------+---------+---------+---------+
- . .
+ . .
. .
. .
+-------------+-------------+----------+----------------------------+
diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
index 2e9aaa295125..5ba5817c17c2 100644
--- a/Documentation/filesystems/fscrypt.rst
+++ b/Documentation/filesystems/fscrypt.rst
@@ -337,6 +337,7 @@ Currently, the following pairs of encryption modes are supported:
- AES-256-XTS for contents and AES-256-CTS-CBC for filenames
- AES-128-CBC for contents and AES-128-CTS-CBC for filenames
- Adiantum for both contents and filenames
+- AES-256-XTS for contents and AES-256-HCTR2 for filenames (v2 policies only)
If unsure, you should use the (AES-256-XTS, AES-256-CTS-CBC) pair.
@@ -357,6 +358,17 @@ To use Adiantum, CONFIG_CRYPTO_ADIANTUM must be enabled. Also, fast
implementations of ChaCha and NHPoly1305 should be enabled, e.g.
CONFIG_CRYPTO_CHACHA20_NEON and CONFIG_CRYPTO_NHPOLY1305_NEON for ARM.
+AES-256-HCTR2 is another true wide-block encryption mode that is intended for
+use on CPUs with dedicated crypto instructions. AES-256-HCTR2 has the property
+that a bitflip in the plaintext changes the entire ciphertext. This property
+makes it desirable for filename encryption since initialization vectors are
+reused within a directory. For more details on AES-256-HCTR2, see the paper
+"Length-preserving encryption with HCTR2"
+(https://eprint.iacr.org/2021/1441.pdf). To use AES-256-HCTR2,
+CONFIG_CRYPTO_HCTR2 must be enabled. Also, fast implementations of XCTR and
+POLYVAL should be enabled, e.g. CRYPTO_POLYVAL_ARM64_CE and
+CRYPTO_AES_ARM64_CE_BLK for ARM64.
+
New encryption modes can be added relatively easily, without changes
to individual filesystems. However, authenticated encryption (AE)
modes are not currently supported because of the difficulty of dealing
@@ -404,11 +416,11 @@ alternatively has the file's nonce (for `DIRECT_KEY policies`_) or
inode number (for `IV_INO_LBLK_64 policies`_) included in the IVs.
Thus, IV reuse is limited to within a single directory.
-With CTS-CBC, the IV reuse means that when the plaintext filenames
-share a common prefix at least as long as the cipher block size (16
-bytes for AES), the corresponding encrypted filenames will also share
-a common prefix. This is undesirable. Adiantum does not have this
-weakness, as it is a wide-block encryption mode.
+With CTS-CBC, the IV reuse means that when the plaintext filenames share a
+common prefix at least as long as the cipher block size (16 bytes for AES), the
+corresponding encrypted filenames will also share a common prefix. This is
+undesirable. Adiantum and HCTR2 do not have this weakness, as they are
+wide-block encryption modes.
All supported filenames encryption modes accept any plaintext length
>= 16 bytes; cipher block alignment is not required. However,
diff --git a/Documentation/filesystems/fsverity.rst b/Documentation/filesystems/fsverity.rst
index 756f2c215ba1..cb8e7573882a 100644
--- a/Documentation/filesystems/fsverity.rst
+++ b/Documentation/filesystems/fsverity.rst
@@ -11,9 +11,9 @@ Introduction
fs-verity (``fs/verity/``) is a support layer that filesystems can
hook into to support transparent integrity and authenticity protection
-of read-only files. Currently, it is supported by the ext4 and f2fs
-filesystems. Like fscrypt, not too much filesystem-specific code is
-needed to support fs-verity.
+of read-only files. Currently, it is supported by the ext4, f2fs, and
+btrfs filesystems. Like fscrypt, not too much filesystem-specific
+code is needed to support fs-verity.
fs-verity is similar to `dm-verity
<https://www.kernel.org/doc/Documentation/device-mapper/verity.txt>`_
@@ -473,9 +473,9 @@ files being swapped around.
Filesystem support
==================
-fs-verity is currently supported by the ext4 and f2fs filesystems.
-The CONFIG_FS_VERITY kconfig option must be enabled to use fs-verity
-on either filesystem.
+fs-verity is supported by several filesystems, described below. The
+CONFIG_FS_VERITY kconfig option must be enabled to use fs-verity on
+any of these filesystems.
``include/linux/fsverity.h`` declares the interface between the
``fs/verity/`` support layer and filesystems. Briefly, filesystems
@@ -544,6 +544,13 @@ Currently, f2fs verity only supports a Merkle tree block size of 4096.
Also, f2fs doesn't support enabling verity on files that currently
have atomic or volatile writes pending.
+btrfs
+-----
+
+btrfs supports fs-verity since Linux v5.15. Verity-enabled inodes are
+marked with a RO_COMPAT inode flag, and the verity metadata is stored
+in separate btree items.
+
Implementation details
======================
@@ -622,14 +629,14 @@ workqueue, and then the workqueue work does the decryption or
verification. Finally, pages where no decryption or verity error
occurred are marked Uptodate, and the pages are unlocked.
-Files on ext4 and f2fs may contain holes. Normally, ``->readahead()``
-simply zeroes holes and sets the corresponding pages Uptodate; no bios
-are issued. To prevent this case from bypassing fs-verity, these
-filesystems use fsverity_verify_page() to verify hole pages.
+On many filesystems, files can contain holes. Normally,
+``->readahead()`` simply zeroes holes and sets the corresponding pages
+Uptodate; no bios are issued. To prevent this case from bypassing
+fs-verity, these filesystems use fsverity_verify_page() to verify hole
+pages.
-ext4 and f2fs disable direct I/O on verity files, since otherwise
-direct I/O would bypass fs-verity. (They also do the same for
-encrypted files.)
+Filesystems also disable direct I/O on verity files, since otherwise
+direct I/O would bypass fs-verity.
Userspace utility
=================
@@ -648,7 +655,7 @@ Tests
To test fs-verity, use xfstests. For example, using `kvm-xfstests
<https://github.com/tytso/xfstests-bld/blob/master/Documentation/kvm-quickstart.md>`_::
- kvm-xfstests -c ext4,f2fs -g verity
+ kvm-xfstests -c ext4,f2fs,btrfs -g verity
FAQ
===
@@ -771,15 +778,15 @@ weren't already directly answered in other parts of this document.
e.g. magically trigger construction of a Merkle tree.
:Q: Does fs-verity support remote filesystems?
-:A: Only ext4 and f2fs support is implemented currently, but in
- principle any filesystem that can store per-file verity metadata
- can support fs-verity, regardless of whether it's local or remote.
- Some filesystems may have fewer options of where to store the
- verity metadata; one possibility is to store it past the end of
- the file and "hide" it from userspace by manipulating i_size. The
- data verification functions provided by ``fs/verity/`` also assume
- that the filesystem uses the Linux pagecache, but both local and
- remote filesystems normally do so.
+:A: So far all filesystems that have implemented fs-verity support are
+ local filesystems, but in principle any filesystem that can store
+ per-file verity metadata can support fs-verity, regardless of
+ whether it's local or remote. Some filesystems may have fewer
+ options of where to store the verity metadata; one possibility is
+ to store it past the end of the file and "hide" it from userspace
+ by manipulating i_size. The data verification functions provided
+ by ``fs/verity/`` also assume that the filesystem uses the Linux
+ pagecache, but both local and remote filesystems normally do so.
:Q: Why is anything filesystem-specific at all? Shouldn't fs-verity
be implemented entirely at the VFS level?
diff --git a/Documentation/filesystems/fuse.rst b/Documentation/filesystems/fuse.rst
index 8120c3c0cb4e..1e31e87aee68 100644
--- a/Documentation/filesystems/fuse.rst
+++ b/Documentation/filesystems/fuse.rst
@@ -279,7 +279,7 @@ How are requirements fulfilled?
the filesystem or not.
Note that the *ptrace* check is not strictly necessary to
- prevent B/2/i, it is enough to check if mount owner has enough
+ prevent C/2/i, it is enough to check if mount owner has enough
privilege to send signal to the process accessing the
filesystem, since *SIGSTOP* can be used to get a similar effect.
@@ -288,10 +288,29 @@ I think these limitations are unacceptable?
If a sysadmin trusts the users enough, or can ensure through other
measures, that system processes will never enter non-privileged
-mounts, it can relax the last limitation with a 'user_allow_other'
-config option. If this config option is set, the mounting user can
-add the 'allow_other' mount option which disables the check for other
-users' processes.
+mounts, it can relax the last limitation in several ways:
+
+ - With the 'user_allow_other' config option. If this config option is
+ set, the mounting user can add the 'allow_other' mount option which
+ disables the check for other users' processes.
+
+ User namespaces have an unintuitive interaction with 'allow_other':
+ an unprivileged user - normally restricted from mounting with
+ 'allow_other' - could do so in a user namespace where they're
+ privileged. If any process could access such an 'allow_other' mount
+ this would give the mounting user the ability to manipulate
+ processes in user namespaces where they're unprivileged. For this
+ reason 'allow_other' restricts access to users in the same userns
+ or a descendant.
+
+ - With the 'allow_sys_admin_access' module option. If this option is
+ set, super user's processes have unrestricted access to mounts
+ irrespective of allow_other setting or user namespace of the
+ mounting user.
+
+Note that both of these relaxations expose the system to potential
+information leak or *DoS* as described in points B and C/2/i-ii in the
+preceding section.
Kernel - userspace interface
============================
diff --git a/Documentation/filesystems/idmappings.rst b/Documentation/filesystems/idmappings.rst
index c1db8748389c..b9b31066aef2 100644
--- a/Documentation/filesystems/idmappings.rst
+++ b/Documentation/filesystems/idmappings.rst
@@ -661,7 +661,7 @@ idmappings::
mount idmapping: u0:k10000:r10000
Assume a file owned by ``u1000`` is read from disk. The filesystem maps this id
-to ``k21000`` according to it's idmapping. This is what is stored in the
+to ``k21000`` according to its idmapping. This is what is stored in the
inode's ``i_uid`` and ``i_gid`` fields.
When the caller queries the ownership of this file via ``stat()`` the kernel
diff --git a/Documentation/filesystems/locking.rst b/Documentation/filesystems/locking.rst
index c0fe711f14d3..8f737e76935c 100644
--- a/Documentation/filesystems/locking.rst
+++ b/Documentation/filesystems/locking.rst
@@ -79,7 +79,8 @@ prototypes::
int (*atomic_open)(struct inode *, struct dentry *,
struct file *, unsigned open_flag,
umode_t create_mode);
- int (*tmpfile) (struct inode *, struct dentry *, umode_t);
+ int (*tmpfile) (struct user_namespace *, struct inode *,
+ struct file *, umode_t);
int (*fileattr_set)(struct user_namespace *mnt_userns,
struct dentry *dentry, struct fileattr *fa);
int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa);
@@ -252,9 +253,8 @@ prototypes::
bool (*release_folio)(struct folio *, gfp_t);
void (*free_folio)(struct folio *);
int (*direct_IO)(struct kiocb *, struct iov_iter *iter);
- bool (*isolate_page) (struct page *, isolate_mode_t);
- int (*migratepage)(struct address_space *, struct page *, struct page *);
- void (*putback_page) (struct page *);
+ int (*migrate_folio)(struct address_space *, struct folio *dst,
+ struct folio *src, enum migrate_mode);
int (*launder_folio)(struct folio *);
bool (*is_partially_uptodate)(struct folio *, size_t from, size_t count);
int (*error_remove_page)(struct address_space *, struct page *);
@@ -280,9 +280,7 @@ invalidate_folio: yes exclusive
release_folio: yes
free_folio: yes
direct_IO:
-isolate_page: yes
-migratepage: yes (both)
-putback_page: yes
+migrate_folio: yes (both)
launder_folio: yes
is_partially_uptodate: yes
error_remove_page: yes
diff --git a/Documentation/filesystems/overlayfs.rst b/Documentation/filesystems/overlayfs.rst
index 316cfd8b1891..4c76fda07645 100644
--- a/Documentation/filesystems/overlayfs.rst
+++ b/Documentation/filesystems/overlayfs.rst
@@ -466,10 +466,6 @@ overlay filesystem and the value of st_ino for filesystem objects may not be
persistent and could change even while the overlay filesystem is mounted, as
summarized in the `Inode properties`_ table above.
-4) "idmapped mounts"
-When the upper or lower layers are idmapped mounts overlayfs will be mounted
-without support for POSIX Access Control Lists (ACLs). This limitation will
-eventually be lifted.
Changes to underlying filesystems
---------------------------------
@@ -611,7 +607,7 @@ can be removed.
User xattr
----------
-The the "-o userxattr" mount option forces overlayfs to use the
+The "-o userxattr" mount option forces overlayfs to use the
"user.overlay." xattr namespace instead of "trusted.overlay.". This is
useful for unprivileged mounting of overlayfs.
diff --git a/Documentation/filesystems/porting.rst b/Documentation/filesystems/porting.rst
index 2e0e4f0e0c6f..df0dc37e6f58 100644
--- a/Documentation/filesystems/porting.rst
+++ b/Documentation/filesystems/porting.rst
@@ -914,3 +914,32 @@ Calling conventions for file_open_root() changed; now it takes struct path *
instead of passing mount and dentry separately. For callers that used to
pass <mnt, mnt->mnt_root> pair (i.e. the root of given mount), a new helper
is provided - file_open_root_mnt(). In-tree users adjusted.
+
+---
+
+**mandatory**
+
+no_llseek is gone; don't set .llseek to that - just leave it NULL instead.
+Checks for "does that file have llseek(2), or should it fail with ESPIPE"
+should be done by looking at FMODE_LSEEK in file->f_mode.
+
+---
+
+*mandatory*
+
+filldir_t (readdir callbacks) calling conventions have changed. Instead of
+returning 0 or -E... it returns bool now. false means "no more" (as -E... used
+to) and true - "keep going" (as 0 in old calling conventions). Rationale:
+callers never looked at specific -E... values anyway. ->iterate() and
+->iterate_shared() instance require no changes at all, all filldir_t ones in
+the tree converted.
+
+---
+
+**mandatory**
+
+Calling conventions for ->tmpfile() have changed. It now takes a struct
+file pointer instead of struct dentry pointer. d_tmpfile() is similarly
+changed to simplify callers. The passed file is in a non-open state and on
+success must be opened before returning (e.g. by calling
+finish_open_simple()).
diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index 1bc91fb8c321..898c99eae8e4 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -448,6 +448,7 @@ Memory Area, or VMA) there is a series of lines such as the following::
MMUPageSize: 4 kB
Rss: 892 kB
Pss: 374 kB
+ Pss_Dirty: 0 kB
Shared_Clean: 892 kB
Shared_Dirty: 0 kB
Private_Clean: 0 kB
@@ -479,7 +480,9 @@ dirty shared and private pages in the mapping.
The "proportional set size" (PSS) of a process is the count of pages it has
in memory, where each page is divided by the number of processes sharing it.
So if a process has 1000 pages all to itself, and 1000 shared with one other
-process, its PSS will be 1500.
+process, its PSS will be 1500. "Pss_Dirty" is the portion of PSS which
+consists of dirty pages. ("Pss_Clean" is not included, but it can be
+calculated by subtracting "Pss_Dirty" from "Pss".)
Note that even a page which is part of a MAP_SHARED mapping, but has only
a single pte mapped, i.e. is currently used by only one process, is accounted
@@ -514,8 +517,10 @@ replaced by copy-on-write) part of the underlying shmem object out on swap.
"SwapPss" shows proportional swap share of this mapping. Unlike "Swap", this
does not take into account swapped out page of underlying shmem objects.
"Locked" indicates whether the mapping is locked in memory or not.
+
"THPeligible" indicates whether the mapping is eligible for allocating THP
-pages - 1 if true, 0 otherwise. It just shows the current status.
+pages as well as the THP is PMD mappable or not - 1 if true, 0 otherwise.
+It just shows the current status.
"VmFlags" field deserves a separate description. This member represents the
kernel flags associated with the particular virtual memory area in two letter
@@ -977,6 +982,7 @@ Example output. You may not have all of these fields.
SUnreclaim: 142336 kB
KernelStack: 11168 kB
PageTables: 20540 kB
+ SecPageTables: 0 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
@@ -1085,6 +1091,9 @@ KernelStack
Memory consumed by the kernel stacks of all tasks
PageTables
Memory consumed by userspace page tables
+SecPageTables
+ Memory consumed by secondary page tables, this currently
+ currently includes KVM mmu allocations on x86 and arm64.
NFS_Unstable
Always zero. Previous counted pages which had been written to
the server, but has not been committed to stable storage.
@@ -1109,7 +1118,7 @@ CommitLimit
yield a CommitLimit of 7.3G.
For more details, see the memory overcommit documentation
- in vm/overcommit-accounting.
+ in mm/overcommit-accounting.
Committed_AS
The amount of memory presently allocated on the system.
The committed memory is a sum of all of the memory which
diff --git a/Documentation/filesystems/qnx6.rst b/Documentation/filesystems/qnx6.rst
index fd13433d362c..523b798f04e7 100644
--- a/Documentation/filesystems/qnx6.rst
+++ b/Documentation/filesystems/qnx6.rst
@@ -176,7 +176,7 @@ Then userspace.
The requirement for a static, fixed preallocated system area comes from how
qnx6fs deals with writes.
-Each superblock got it's own half of the system area. So superblock #1
+Each superblock got its own half of the system area. So superblock #1
always uses blocks from the lower half while superblock #2 just writes to
blocks represented by the upper half bitmap system area bits.
diff --git a/Documentation/filesystems/spufs/spufs.rst b/Documentation/filesystems/spufs/spufs.rst
index 8a42859bb100..ca0441cbe37e 100644
--- a/Documentation/filesystems/spufs/spufs.rst
+++ b/Documentation/filesystems/spufs/spufs.rst
@@ -227,7 +227,7 @@ Files
from the data buffer, updating the value of the specified signal
notification register. The signal notification register will
either be replaced with the input data or will be updated to the
- bitwise OR or the old value and the input data, depending on the
+ bitwise OR of the old value and the input data, depending on the
contents of the signal1_type, or signal2_type respectively,
file.
diff --git a/Documentation/filesystems/sysfs.rst b/Documentation/filesystems/sysfs.rst
index 004d490179f3..8bba676b1365 100644
--- a/Documentation/filesystems/sysfs.rst
+++ b/Documentation/filesystems/sysfs.rst
@@ -263,7 +263,7 @@ A very simple (and naive) implementation of a device attribute is::
static ssize_t show_name(struct device *dev, struct device_attribute *attr,
char *buf)
{
- return scnprintf(buf, PAGE_SIZE, "%s\n", dev->name);
+ return sysfs_emit(buf, "%s\n", dev->name);
}
static ssize_t store_name(struct device *dev, struct device_attribute *attr,
diff --git a/Documentation/filesystems/vfs.rst b/Documentation/filesystems/vfs.rst
index 08069ecd49a6..2b55f71e2ae1 100644
--- a/Documentation/filesystems/vfs.rst
+++ b/Documentation/filesystems/vfs.rst
@@ -274,6 +274,9 @@ or bottom half).
This is specifically for the inode itself being marked dirty,
not its data. If the update needs to be persisted by fdatasync(),
then I_DIRTY_DATASYNC will be set in the flags argument.
+ I_DIRTY_TIME will be set in the flags in case lazytime is enabled
+ and struct inode has times updated since the last ->dirty_inode
+ call.
``write_inode``
this method is called when the VFS needs to write an inode to
@@ -439,7 +442,7 @@ As of kernel 2.6.22, the following members are defined:
void (*update_time)(struct inode *, struct timespec *, int);
int (*atomic_open)(struct inode *, struct dentry *, struct file *,
unsigned open_flag, umode_t create_mode);
- int (*tmpfile) (struct user_namespace *, struct inode *, struct dentry *, umode_t);
+ int (*tmpfile) (struct user_namespace *, struct inode *, struct file *, umode_t);
int (*set_acl)(struct user_namespace *, struct inode *, struct posix_acl *, int);
int (*fileattr_set)(struct user_namespace *mnt_userns,
struct dentry *dentry, struct fileattr *fa);
@@ -589,7 +592,9 @@ otherwise noted.
``tmpfile``
called in the end of O_TMPFILE open(). Optional, equivalent to
atomically creating, opening and unlinking a file in given
- directory.
+ directory. On success needs to return with the file already
+ open; this can be done by calling finish_open_simple() right at
+ the end.
``fileattr_get``
called on ioctl(FS_IOC_GETFLAGS) and ioctl(FS_IOC_FSGETXATTR) to
@@ -737,12 +742,8 @@ cache in your filesystem. The following members are defined:
bool (*release_folio)(struct folio *, gfp_t);
void (*free_folio)(struct folio *);
ssize_t (*direct_IO)(struct kiocb *, struct iov_iter *iter);
- /* isolate a page for migration */
- bool (*isolate_page) (struct page *, isolate_mode_t);
- /* migrate the contents of a page to the specified target */
- int (*migratepage) (struct page *, struct page *);
- /* put migration-failed page back to right list */
- void (*putback_page) (struct page *);
+ int (*migrate_folio)(struct mapping *, struct folio *dst,
+ struct folio *src, enum migrate_mode);
int (*launder_folio) (struct folio *);
bool (*is_partially_uptodate) (struct folio *, size_t from,
@@ -774,13 +775,38 @@ cache in your filesystem. The following members are defined:
See the file "Locking" for more details.
``read_folio``
- called by the VM to read a folio from backing store. The folio
- will be locked when read_folio is called, and should be unlocked
- and marked uptodate once the read completes. If ->read_folio
- discovers that it cannot perform the I/O at this time, it can
- unlock the folio and return AOP_TRUNCATED_PAGE. In this case,
- the folio will be looked up again, relocked and if that all succeeds,
- ->read_folio will be called again.
+ Called by the page cache to read a folio from the backing store.
+ The 'file' argument supplies authentication information to network
+ filesystems, and is generally not used by block based filesystems.
+ It may be NULL if the caller does not have an open file (eg if
+ the kernel is performing a read for itself rather than on behalf
+ of a userspace process with an open file).
+
+ If the mapping does not support large folios, the folio will
+ contain a single page. The folio will be locked when read_folio
+ is called. If the read completes successfully, the folio should
+ be marked uptodate. The filesystem should unlock the folio
+ once the read has completed, whether it was successful or not.
+ The filesystem does not need to modify the refcount on the folio;
+ the page cache holds a reference count and that will not be
+ released until the folio is unlocked.
+
+ Filesystems may implement ->read_folio() synchronously.
+ In normal operation, folios are read through the ->readahead()
+ method. Only if this fails, or if the caller needs to wait for
+ the read to complete will the page cache call ->read_folio().
+ Filesystems should not attempt to perform their own readahead
+ in the ->read_folio() operation.
+
+ If the filesystem cannot perform the read at this time, it can
+ unlock the folio, do whatever action it needs to ensure that the
+ read will succeed in the future and return AOP_TRUNCATED_PAGE.
+ In this case, the caller should look up the folio, lock it,
+ and call ->read_folio again.
+
+ Callers may invoke the ->read_folio() method directly, but using
+ read_mapping_folio() will take care of locking, waiting for the
+ read to complete and handle cases such as AOP_TRUNCATED_PAGE.
``writepages``
called by the VM to write out pages associated with the
@@ -905,20 +931,12 @@ cache in your filesystem. The following members are defined:
data directly between the storage and the application's address
space.
-``isolate_page``
- Called by the VM when isolating a movable non-lru page. If page
- is successfully isolated, VM marks the page as PG_isolated via
- __SetPageIsolated.
-
-``migrate_page``
+``migrate_folio``
This is used to compact the physical memory usage. If the VM
- wants to relocate a page (maybe off a memory card that is
- signalling imminent failure) it will pass a new page and an old
- page to this function. migrate_page should transfer any private
- data across and update any references that it has to the page.
-
-``putback_page``
- Called by the VM when isolated page's migration fails.
+ wants to relocate a folio (maybe from a memory device that is
+ signalling imminent failure) it will pass a new folio and an old
+ folio to this function. migrate_folio should transfer any private
+ data across and update any references that it has to the folio.
``launder_folio``
Called before freeing a folio - it writes back the dirty folio.
diff --git a/Documentation/filesystems/xfs-delayed-logging-design.rst b/Documentation/filesystems/xfs-delayed-logging-design.rst
index 464405d2801e..6402ab8e370c 100644
--- a/Documentation/filesystems/xfs-delayed-logging-design.rst
+++ b/Documentation/filesystems/xfs-delayed-logging-design.rst
@@ -1,29 +1,314 @@
.. SPDX-License-Identifier: GPL-2.0
-==========================
-XFS Delayed Logging Design
-==========================
-
-Introduction to Re-logging in XFS
-=================================
-
-XFS logging is a combination of logical and physical logging. Some objects,
-such as inodes and dquots, are logged in logical format where the details
-logged are made up of the changes to in-core structures rather than on-disk
-structures. Other objects - typically buffers - have their physical changes
-logged. The reason for these differences is to reduce the amount of log space
-required for objects that are frequently logged. Some parts of inodes are more
-frequently logged than others, and inodes are typically more frequently logged
-than any other object (except maybe the superblock buffer) so keeping the
-amount of metadata logged low is of prime importance.
-
-The reason that this is such a concern is that XFS allows multiple separate
-modifications to a single object to be carried in the log at any given time.
-This allows the log to avoid needing to flush each change to disk before
-recording a new change to the object. XFS does this via a method called
-"re-logging". Conceptually, this is quite simple - all it requires is that any
-new change to the object is recorded with a *new copy* of all the existing
-changes in the new transaction that is written to the log.
+==================
+XFS Logging Design
+==================
+
+Preamble
+========
+
+This document describes the design and algorithms that the XFS journalling
+subsystem is based on. This document describes the design and algorithms that
+the XFS journalling subsystem is based on so that readers may familiarize
+themselves with the general concepts of how transaction processing in XFS works.
+
+We begin with an overview of transactions in XFS, followed by describing how
+transaction reservations are structured and accounted, and then move into how we
+guarantee forwards progress for long running transactions with finite initial
+reservations bounds. At this point we need to explain how relogging works. With
+the basic concepts covered, the design of the delayed logging mechanism is
+documented.
+
+
+Introduction
+============
+
+XFS uses Write Ahead Logging for ensuring changes to the filesystem metadata
+are atomic and recoverable. For reasons of space and time efficiency, the
+logging mechanisms are varied and complex, combining intents, logical and
+physical logging mechanisms to provide the necessary recovery guarantees the
+filesystem requires.
+
+Some objects, such as inodes and dquots, are logged in logical format where the
+details logged are made up of the changes to in-core structures rather than
+on-disk structures. Other objects - typically buffers - have their physical
+changes logged. Long running atomic modifications have individual changes
+chained together by intents, ensuring that journal recovery can restart and
+finish an operation that was only partially done when the system stopped
+functioning.
+
+The reason for these differences is to keep the amount of log space and CPU time
+required to process objects being modified as small as possible and hence the
+logging overhead as low as possible. Some items are very frequently modified,
+and some parts of objects are more frequently modified than others, so keeping
+the overhead of metadata logging low is of prime importance.
+
+The method used to log an item or chain modifications together isn't
+particularly important in the scope of this document. It suffices to know that
+the method used for logging a particular object or chaining modifications
+together are different and are dependent on the object and/or modification being
+performed. The logging subsystem only cares that certain specific rules are
+followed to guarantee forwards progress and prevent deadlocks.
+
+
+Transactions in XFS
+===================
+
+XFS has two types of high level transactions, defined by the type of log space
+reservation they take. These are known as "one shot" and "permanent"
+transactions. Permanent transaction reservations can take reservations that span
+commit boundaries, whilst "one shot" transactions are for a single atomic
+modification.
+
+The type and size of reservation must be matched to the modification taking
+place. This means that permanent transactions can be used for one-shot
+modifications, but one-shot reservations cannot be used for permanent
+transactions.
+
+In the code, a one-shot transaction pattern looks somewhat like this::
+
+ tp = xfs_trans_alloc(<reservation>)
+ <lock items>
+ <join item to transaction>
+ <do modification>
+ xfs_trans_commit(tp);
+
+As items are modified in the transaction, the dirty regions in those items are
+tracked via the transaction handle. Once the transaction is committed, all
+resources joined to it are released, along with the remaining unused reservation
+space that was taken at the transaction allocation time.
+
+In contrast, a permanent transaction is made up of multiple linked individual
+transactions, and the pattern looks like this::
+
+ tp = xfs_trans_alloc(<reservation>)
+ xfs_ilock(ip, XFS_ILOCK_EXCL)
+
+ loop {
+ xfs_trans_ijoin(tp, 0);
+ <do modification>
+ xfs_trans_log_inode(tp, ip);
+ xfs_trans_roll(&tp);
+ }
+
+ xfs_trans_commit(tp);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
+While this might look similar to a one-shot transaction, there is an important
+difference: xfs_trans_roll() performs a specific operation that links two
+transactions together::
+
+ ntp = xfs_trans_dup(tp);
+ xfs_trans_commit(tp);
+ xfs_trans_reserve(ntp);
+
+This results in a series of "rolling transactions" where the inode is locked
+across the entire chain of transactions. Hence while this series of rolling
+transactions is running, nothing else can read from or write to the inode and
+this provides a mechanism for complex changes to appear atomic from an external
+observer's point of view.
+
+It is important to note that a series of rolling transactions in a permanent
+transaction does not form an atomic change in the journal. While each
+individual modification is atomic, the chain is *not atomic*. If we crash half
+way through, then recovery will only replay up to the last transactional
+modification the loop made that was committed to the journal.
+
+This affects long running permanent transactions in that it is not possible to
+predict how much of a long running operation will actually be recovered because
+there is no guarantee of how much of the operation reached stale storage. Hence
+if a long running operation requires multiple transactions to fully complete,
+the high level operation must use intents and deferred operations to guarantee
+recovery can complete the operation once the first transactions is persisted in
+the on-disk journal.
+
+
+Transactions are Asynchronous
+=============================
+
+In XFS, all high level transactions are asynchronous by default. This means that
+xfs_trans_commit() does not guarantee that the modification has been committed
+to stable storage when it returns. Hence when a system crashes, not all the
+completed transactions will be replayed during recovery.
+
+However, the logging subsystem does provide global ordering guarantees, such
+that if a specific change is seen after recovery, all metadata modifications
+that were committed prior to that change will also be seen.
+
+For single shot operations that need to reach stable storage immediately, or
+ensuring that a long running permanent transaction is fully committed once it is
+complete, we can explicitly tag a transaction as synchronous. This will trigger
+a "log force" to flush the outstanding committed transactions to stable storage
+in the journal and wait for that to complete.
+
+Synchronous transactions are rarely used, however, because they limit logging
+throughput to the IO latency limitations of the underlying storage. Instead, we
+tend to use log forces to ensure modifications are on stable storage only when
+a user operation requires a synchronisation point to occur (e.g. fsync).
+
+
+Transaction Reservations
+========================
+
+It has been mentioned a number of times now that the logging subsystem needs to
+provide a forwards progress guarantee so that no modification ever stalls
+because it can't be written to the journal due to a lack of space in the
+journal. This is achieved by the transaction reservations that are made when
+a transaction is first allocated. For permanent transactions, these reservations
+are maintained as part of the transaction rolling mechanism.
+
+A transaction reservation provides a guarantee that there is physical log space
+available to write the modification into the journal before we start making
+modifications to objects and items. As such, the reservation needs to be large
+enough to take into account the amount of metadata that the change might need to
+log in the worst case. This means that if we are modifying a btree in the
+transaction, we have to reserve enough space to record a full leaf-to-root split
+of the btree. As such, the reservations are quite complex because we have to
+take into account all the hidden changes that might occur.
+
+For example, a user data extent allocation involves allocating an extent from
+free space, which modifies the free space trees. That's two btrees. Inserting
+the extent into the inode's extent map might require a split of the extent map
+btree, which requires another allocation that can modify the free space trees
+again. Then we might have to update reverse mappings, which modifies yet
+another btree which might require more space. And so on. Hence the amount of
+metadata that a "simple" operation can modify can be quite large.
+
+This "worst case" calculation provides us with the static "unit reservation"
+for the transaction that is calculated at mount time. We must guarantee that the
+log has this much space available before the transaction is allowed to proceed
+so that when we come to write the dirty metadata into the log we don't run out
+of log space half way through the write.
+
+For one-shot transactions, a single unit space reservation is all that is
+required for the transaction to proceed. For permanent transactions, however, we
+also have a "log count" that affects the size of the reservation that is to be
+made.
+
+While a permanent transaction can get by with a single unit of space
+reservation, it is somewhat inefficient to do this as it requires the
+transaction rolling mechanism to re-reserve space on every transaction roll. We
+know from the implementation of the permanent transactions how many transaction
+rolls are likely for the common modifications that need to be made.
+
+For example, an inode allocation is typically two transactions - one to
+physically allocate a free inode chunk on disk, and another to allocate an inode
+from an inode chunk that has free inodes in it. Hence for an inode allocation
+transaction, we might set the reservation log count to a value of 2 to indicate
+that the common/fast path transaction will commit two linked transactions in a
+chain. Each time a permanent transaction rolls, it consumes an entire unit
+reservation.
+
+Hence when the permanent transaction is first allocated, the log space
+reservation is increased from a single unit reservation to multiple unit
+reservations. That multiple is defined by the reservation log count, and this
+means we can roll the transaction multiple times before we have to re-reserve
+log space when we roll the transaction. This ensures that the common
+modifications we make only need to reserve log space once.
+
+If the log count for a permanent transaction reaches zero, then it needs to
+re-reserve physical space in the log. This is somewhat complex, and requires
+an understanding of how the log accounts for space that has been reserved.
+
+
+Log Space Accounting
+====================
+
+The position in the log is typically referred to as a Log Sequence Number (LSN).
+The log is circular, so the positions in the log are defined by the combination
+of a cycle number - the number of times the log has been overwritten - and the
+offset into the log. A LSN carries the cycle in the upper 32 bits and the
+offset in the lower 32 bits. The offset is in units of "basic blocks" (512
+bytes). Hence we can do realtively simple LSN based math to keep track of
+available space in the log.
+
+Log space accounting is done via a pair of constructs called "grant heads". The
+position of the grant heads is an absolute value, so the amount of space
+available in the log is defined by the distance between the position of the
+grant head and the current log tail. That is, how much space can be
+reserved/consumed before the grant heads would fully wrap the log and overtake
+the tail position.
+
+The first grant head is the "reserve" head. This tracks the byte count of the
+reservations currently held by active transactions. It is a purely in-memory
+accounting of the space reservation and, as such, actually tracks byte offsets
+into the log rather than basic blocks. Hence it technically isn't using LSNs to
+represent the log position, but it is still treated like a split {cycle,offset}
+tuple for the purposes of tracking reservation space.
+
+The reserve grant head is used to accurately account for exact transaction
+reservations amounts and the exact byte count that modifications actually make
+and need to write into the log. The reserve head is used to prevent new
+transactions from taking new reservations when the head reaches the current
+tail. It will block new reservations in a FIFO queue and as the log tail moves
+forward it will wake them in order once sufficient space is available. This FIFO
+mechanism ensures no transaction is starved of resources when log space
+shortages occur.
+
+The other grant head is the "write" head. Unlike the reserve head, this grant
+head contains an LSN and it tracks the physical space usage in the log. While
+this might sound like it is accounting the same state as the reserve grant head
+- and it mostly does track exactly the same location as the reserve grant head -
+there are critical differences in behaviour between them that provides the
+forwards progress guarantees that rolling permanent transactions require.
+
+These differences when a permanent transaction is rolled and the internal "log
+count" reaches zero and the initial set of unit reservations have been
+exhausted. At this point, we still require a log space reservation to continue
+the next transaction in the sequeunce, but we have none remaining. We cannot
+sleep during the transaction commit process waiting for new log space to become
+available, as we may end up on the end of the FIFO queue and the items we have
+locked while we sleep could end up pinning the tail of the log before there is
+enough free space in the log to fulfill all of the pending reservations and
+then wake up transaction commit in progress.
+
+To take a new reservation without sleeping requires us to be able to take a
+reservation even if there is no reservation space currently available. That is,
+we need to be able to *overcommit* the log reservation space. As has already
+been detailed, we cannot overcommit physical log space. However, the reserve
+grant head does not track physical space - it only accounts for the amount of
+reservations we currently have outstanding. Hence if the reserve head passes
+over the tail of the log all it means is that new reservations will be throttled
+immediately and remain throttled until the log tail is moved forward far enough
+to remove the overcommit and start taking new reservations. In other words, we
+can overcommit the reserve head without violating the physical log head and tail
+rules.
+
+As a result, permanent transactions only "regrant" reservation space during
+xfs_trans_commit() calls, while the physical log space reservation - tracked by
+the write head - is then reserved separately by a call to xfs_log_reserve()
+after the commit completes. Once the commit completes, we can sleep waiting for
+physical log space to be reserved from the write grant head, but only if one
+critical rule has been observed::
+
+ Code using permanent reservations must always log the items they hold
+ locked across each transaction they roll in the chain.
+
+"Re-logging" the locked items on every transaction roll ensures that the items
+attached to the transaction chain being rolled are always relocated to the
+physical head of the log and so do not pin the tail of the log. If a locked item
+pins the tail of the log when we sleep on the write reservation, then we will
+deadlock the log as we cannot take the locks needed to write back that item and
+move the tail of the log forwards to free up write grant space. Re-logging the
+locked items avoids this deadlock and guarantees that the log reservation we are
+making cannot self-deadlock.
+
+If all rolling transactions obey this rule, then they can all make forwards
+progress independently because nothing will block the progress of the log
+tail moving forwards and hence ensuring that write grant space is always
+(eventually) made available to permanent transactions no matter how many times
+they roll.
+
+
+Re-logging Explained
+====================
+
+XFS allows multiple separate modifications to a single object to be carried in
+the log at any given time. This allows the log to avoid needing to flush each
+change to disk before recording a new change to the object. XFS does this via a
+method called "re-logging". Conceptually, this is quite simple - all it requires
+is that any new change to the object is recorded with a *new copy* of all the
+existing changes in the new transaction that is written to the log.
That is, if we have a sequence of changes A through to F, and the object was
written to disk after change D, we would see in the log the following series
@@ -42,16 +327,13 @@ transaction::
In other words, each time an object is relogged, the new transaction contains
the aggregation of all the previous changes currently held only in the log.
-This relogging technique also allows objects to be moved forward in the log so
-that an object being relogged does not prevent the tail of the log from ever
-moving forward. This can be seen in the table above by the changing
-(increasing) LSN of each subsequent transaction - the LSN is effectively a
-direct encoding of the location in the log of the transaction.
+This relogging technique allows objects to be moved forward in the log so that
+an object being relogged does not prevent the tail of the log from ever moving
+forward. This can be seen in the table above by the changing (increasing) LSN
+of each subsequent transaction, and it's the technique that allows us to
+implement long-running, multiple-commit permanent transactions.
-This relogging is also used to implement long-running, multiple-commit
-transactions. These transaction are known as rolling transactions, and require
-a special log reservation known as a permanent transaction reservation. A
-typical example of a rolling transaction is the removal of extents from an
+A typical example of a rolling transaction is the removal of extents from an
inode which can only be done at a rate of two extents per transaction because
of reservation size limitations. Hence a rolling extent removal transaction
keeps relogging the inode and btree buffers as they get modified in each
@@ -67,12 +349,13 @@ the log over and over again. Worse is the fact that objects tend to get
dirtier as they get relogged, so each subsequent transaction is writing more
metadata into the log.
-Another feature of the XFS transaction subsystem is that most transactions are
-asynchronous. That is, they don't commit to disk until either a log buffer is
-filled (a log buffer can hold multiple transactions) or a synchronous operation
-forces the log buffers holding the transactions to disk. This means that XFS is
-doing aggregation of transactions in memory - batching them, if you like - to
-minimise the impact of the log IO on transaction throughput.
+It should now also be obvious how relogging and asynchronous transactions go
+hand in hand. That is, transactions don't get written to the physical journal
+until either a log buffer is filled (a log buffer can hold multiple
+transactions) or a synchronous operation forces the log buffers holding the
+transactions to disk. This means that XFS is doing aggregation of transactions
+in memory - batching them, if you like - to minimise the impact of the log IO on
+transaction throughput.
The limitation on asynchronous transaction throughput is the number and size of
log buffers made available by the log manager. By default there are 8 log
@@ -268,14 +551,14 @@ Essentially, this shows that an item that is in the AIL can still be modified
and relogged, so any tracking must be separate to the AIL infrastructure. As
such, we cannot reuse the AIL list pointers for tracking committed items, nor
can we store state in any field that is protected by the AIL lock. Hence the
-committed item tracking needs it's own locks, lists and state fields in the log
+committed item tracking needs its own locks, lists and state fields in the log
item.
Similar to the AIL, tracking of committed items is done through a new list
called the Committed Item List (CIL). The list tracks log items that have been
committed and have formatted memory buffers attached to them. It tracks objects
in transaction commit order, so when an object is relogged it is removed from
-it's place in the list and re-inserted at the tail. This is entirely arbitrary
+its place in the list and re-inserted at the tail. This is entirely arbitrary
and done to make it easy for debugging - the last items in the list are the
ones that are most recently modified. Ordering of the CIL is not necessary for
transactional integrity (as discussed in the next section) so the ordering is
@@ -332,7 +615,7 @@ those changes into the current checkpoint context. We then initialise a new
context and attach that to the CIL for aggregation of new transactions.
This allows us to unlock the CIL immediately after transfer of all the
-committed items and effectively allow new transactions to be issued while we
+committed items and effectively allows new transactions to be issued while we
are formatting the checkpoint into the log. It also allows concurrent
checkpoints to be written into the log buffers in the case of log force heavy
workloads, just like the existing transaction commit code does. This, however,
@@ -601,9 +884,9 @@ pin the object the first time it is inserted into the CIL - if it is already in
the CIL during a transaction commit, then we do not pin it again. Because there
can be multiple outstanding checkpoint contexts, we can still see elevated pin
counts, but as each checkpoint completes the pin count will retain the correct
-value according to it's context.
+value according to its context.
-Just to make matters more slightly more complex, this checkpoint level context
+Just to make matters slightly more complex, this checkpoint level context
for the pin count means that the pinning of an item must take place under the
CIL commit/flush lock. If we pin the object outside this lock, we cannot
guarantee which context the pin count is associated with. This is because of
diff --git a/Documentation/firmware-guide/acpi/DSD-properties-rules.rst b/Documentation/firmware-guide/acpi/DSD-properties-rules.rst
index 8b2d8d0864c2..70442bc2521e 100644
--- a/Documentation/firmware-guide/acpi/DSD-properties-rules.rst
+++ b/Documentation/firmware-guide/acpi/DSD-properties-rules.rst
@@ -21,7 +21,9 @@ specific type) associated with it.
In the ACPI _DSD context it is an element of the sub-package following the
generic Device Properties UUID in the _DSD return package as specified in the
-Device Properties UUID definition document [1]_.
+section titled "Well-Known _DSD UUIDs and Data Structure Formats" sub-section
+"Device Properties UUID" in _DSD (Device Specific Data) Implementation Guide
+document [1]_.
It also may be regarded as the definition of a key and the associated data type
that can be returned by _DSD in the Device Properties UUID sub-package for a
@@ -36,7 +38,9 @@ Property subsets are nested collections of properties. Each of them is
associated with an additional key (name) allowing the subset to be referred
to as a whole (and to be treated as a separate entity). The canonical
representation of property subsets is via the mechanism specified in the
-Hierarchical Properties Extension UUID definition document [2]_.
+section titled "Well-Known _DSD UUIDs and Data Structure Formats" sub-section
+"Hierarchical Data Extension UUID" in _DSD (Device Specific Data)
+Implementation Guide document [1]_.
Property sets may be hierarchical. That is, a property set may contain
multiple property subsets that each may contain property subsets of its
@@ -96,5 +100,4 @@ contents.
References
==========
-.. [1] https://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf
-.. [2] https://www.uefi.org/sites/default/files/resources/_DSD-hierarchical-data-extension-UUID-v1.1.pdf
+.. [1] https://github.com/UEFI/DSD-Guide
diff --git a/Documentation/firmware-guide/acpi/apei/einj.rst b/Documentation/firmware-guide/acpi/apei/einj.rst
index 55e2331a6438..d6b61d22f525 100644
--- a/Documentation/firmware-guide/acpi/apei/einj.rst
+++ b/Documentation/firmware-guide/acpi/apei/einj.rst
@@ -168,7 +168,7 @@ An error injection example::
0x00000008 Memory Correctable
0x00000010 Memory Uncorrectable non-fatal
# echo 0x12345000 > param1 # Set memory address for injection
- # echo $((-1 << 12)) > param2 # Mask 0xfffffffffffff000 - anywhere in this page
+ # echo 0xfffffffffffff000 > param2 # Mask - anywhere in this page
# echo 0x8 > error_type # Choose correctable memory error
# echo 1 > error_inject # Inject now
diff --git a/Documentation/firmware-guide/acpi/enumeration.rst b/Documentation/firmware-guide/acpi/enumeration.rst
index dbb03022b127..b9dc0c603f36 100644
--- a/Documentation/firmware-guide/acpi/enumeration.rst
+++ b/Documentation/firmware-guide/acpi/enumeration.rst
@@ -21,7 +21,7 @@ possible we decided to do following:
- Devices behind real busses where there is a connector resource
are represented as struct spi_device or struct i2c_device. Note
that standard UARTs are not busses so there is no struct uart_device,
- although some of them may be represented by sturct serdev_device.
+ although some of them may be represented by struct serdev_device.
As both ACPI and Device Tree represent a tree of devices (and their
resources) this implementation follows the Device Tree way as much as
@@ -205,7 +205,7 @@ Here is what the ACPI namespace for a SPI slave might look like::
}
...
-The SPI device drivers only need to add ACPI IDs in a similar way than with
+The SPI device drivers only need to add ACPI IDs in a similar way to
the platform device drivers. Below is an example where we add ACPI support
to at25 SPI eeprom driver (this is meant for the above ACPI snippet)::
@@ -362,7 +362,7 @@ These GPIO numbers are controller relative and path "\\_SB.PCI0.GPI0"
specifies the path to the controller. In order to use these GPIOs in Linux
we need to translate them to the corresponding Linux GPIO descriptors.
-There is a standard GPIO API for that and is documented in
+There is a standard GPIO API for that and it is documented in
Documentation/admin-guide/gpio/.
In the above example we can get the corresponding two GPIO descriptors with
@@ -538,8 +538,8 @@ information.
PCI hierarchy representation
============================
-Sometimes could be useful to enumerate a PCI device, knowing its position on the
-PCI bus.
+Sometimes it could be useful to enumerate a PCI device, knowing its position on
+the PCI bus.
For example, some systems use PCI devices soldered directly on the mother board,
in a fixed position (ethernet, Wi-Fi, serial ports, etc.). In this conditions it
@@ -550,7 +550,7 @@ To identify a PCI device, a complete hierarchical description is required, from
the chipset root port to the final device, through all the intermediate
bridges/switches of the board.
-For example, let us assume to have a system with a PCIe serial port, an
+For example, let's assume we have a system with a PCIe serial port, an
Exar XR17V3521, soldered on the main board. This UART chip also includes
16 GPIOs and we want to add the property ``gpio-line-names`` [1] to these pins.
In this case, the ``lspci`` output for this component is::
@@ -593,8 +593,8 @@ of the chipset bridge (also called "root port") with address::
Bus: 0 - Device: 14 - Function: 1
-To find this information is necessary disassemble the BIOS ACPI tables, in
-particular the DSDT (see also [2])::
+To find this information, it is necessary to disassemble the BIOS ACPI tables,
+in particular the DSDT (see also [2])::
mkdir ~/tables/
cd ~/tables/
diff --git a/Documentation/firmware-guide/acpi/osi.rst b/Documentation/firmware-guide/acpi/osi.rst
index 05869c0045d7..784850adfcb6 100644
--- a/Documentation/firmware-guide/acpi/osi.rst
+++ b/Documentation/firmware-guide/acpi/osi.rst
@@ -41,26 +41,23 @@ But it is likely that they will all eventually be added.
What should an OEM do if they want to support Linux and Windows
using the same BIOS image? Often they need to do something different
for Linux to deal with how Linux is different from Windows.
-Here the BIOS should ask exactly what it wants to know:
+In this case, the OEM should create custom ASL to be executed by the
+Linux kernel and changes to Linux kernel drivers to execute this custom
+ASL. The easiest way to accomplish this is to introduce a device specific
+method (_DSM) that is called from the Linux kernel.
+
+In the past the kernel used to support something like:
_OSI("Linux-OEM-my_interface_name")
where 'OEM' is needed if this is an OEM-specific hook,
and 'my_interface_name' describes the hook, which could be a
quirk, a bug, or a bug-fix.
-In addition, the OEM should send a patch to upstream Linux
-via the linux-acpi@vger.kernel.org mailing list. When that patch
-is checked into Linux, the OS will answer "YES" when the BIOS
-on the OEM's system uses _OSI to ask if the interface is supported
-by the OS. Linux distributors can back-port that patch for Linux
-pre-installs, and it will be included by all distributions that
-re-base to upstream. If the distribution can not update the kernel binary,
-they can also add an acpi_osi=Linux-OEM-my_interface_name
-cmdline parameter to the boot loader, as needed.
-
-If the string refers to a feature where the upstream kernel
-eventually grows support, a patch should be sent to remove
-the string when that support is added to the kernel.
+However this was discovered to be abused by other BIOS vendors to change
+completely unrelated code on completely unrelated systems. This prompted
+an evaluation of all of it's uses. This uncovered that they aren't needed
+for any of the original reasons. As such, the kernel will not respond to
+any custom Linux-* strings by default.
That was easy. Read on, to find out how to do it wrong.
diff --git a/Documentation/gpu/amdgpu/amdgpu-glossary.rst b/Documentation/gpu/amdgpu/amdgpu-glossary.rst
index db924d37f93e..326896e9800d 100644
--- a/Documentation/gpu/amdgpu/amdgpu-glossary.rst
+++ b/Documentation/gpu/amdgpu/amdgpu-glossary.rst
@@ -75,7 +75,7 @@ we have a dedicated glossary for Display Core at
PSP
Platform Security Processor
- RCL
+ RLC
RunList Controller
SDMA
diff --git a/Documentation/gpu/amdgpu/apu-asic-info-table.csv b/Documentation/gpu/amdgpu/apu-asic-info-table.csv
new file mode 100644
index 000000000000..98c6988e424e
--- /dev/null
+++ b/Documentation/gpu/amdgpu/apu-asic-info-table.csv
@@ -0,0 +1,8 @@
+Product Name, Code Reference, DCN/DCE version, GC version, VCE/UVD/VCN version, SDMA version
+Radeon R* Graphics, CARRIZO/STONEY, DCE 11, 8, VCE 3 / UVD 6, 3
+Ryzen 3000 series / AMD Ryzen Embedded V1*/R1* with Radeon Vega Gfx, RAVEN/PICASSO, DCN 1.0, 9.1.0, VCN 1.0, 4.1.0
+Ryzen 4000 series, RENOIR, DCN 2.1, 9.3, VCN 2.2, 4.1.2
+Ryzen 3000 series / AMD Ryzen Embedded V1*/R1* with Radeon Vega Gfx, RAVEN2, DCN 1.0, 9.2.2, VCN 1.0.1, 4.1.1
+SteamDeck, VANGOGH, DCN 3.0.1, 10.3.1, VCN 3.1.0, 5.2.1
+Ryzen 5000 series, GREEN SARDINE, DCN 2.1, 9.3, VCN 2.2, 4.1.1
+Ryzen 6000 Zen, YELLOW CARP, 3.1.2, 10.3.3, VCN 3.1.1, 5.2.3
diff --git a/Documentation/gpu/amdgpu/dgpu-asic-info-table.csv b/Documentation/gpu/amdgpu/dgpu-asic-info-table.csv
new file mode 100644
index 000000000000..84617aa35dab
--- /dev/null
+++ b/Documentation/gpu/amdgpu/dgpu-asic-info-table.csv
@@ -0,0 +1,24 @@
+Product Name, Code Reference, DCN/DCE version, GC version, VCN version, SDMA version
+AMD Radeon (TM) HD 8500M/ 8600M /M200 /M320 /M330 /M335 Series, HAINAN, --, 6, --, --
+AMD Radeon HD 7800 /7900 /FireGL Series, TAHITI, DCE 6, 6, VCE 1 / UVD 3, --
+AMD Radeon R7 (TM|HD) M265 /M370 /8500M /8600 /8700 /8700M, OLAND, DCE 6, 6, VCE 1 / UVD 3, --
+AMD Radeon (TM) (HD|R7) 7800 /7970 /8800 /8970 /370/ Series, PITCAIRN, DCE 6, 6, VCE 1 / UVD 3, --
+AMD Radeon (TM|R7|R9|HD) E8860 /M360 /7700 /7800 /8800 /9000(M) /W4100 Series, VERDE, DCE 6, 6, VCE 1 / UVD 3, --
+AMD Radeon HD M280X /M380 /7700 /8950 /W5100, BONAIRE, DCE 8, 7, VCE 2 / UVD 4.2, 1
+AMD Radeon (R9|TM) 200 /390 /W8100 /W9100 Series, HAWAII, DCE 8, 7, VCE 2 / UVD 4.2, 1
+AMD Radeon (TM) R(5|7) M315 /M340 /M360, TOPAZ, *, 8, --, 2
+AMD Radeon (TM) R9 200 /380 /W7100 /S7150 /M390 /M395 Series, TONGA, DCE 10, 8, VCE 3 / UVD 5, 3
+AMD Radeon (FirePro) (TM) R9 Fury Series, FIJI, DCE 10, 8, VCE 3 / UVD 6, 3
+Radeon RX 470 /480 /570 /580 /590 Series - AMD Radeon (TM) (Pro WX) 5100 /E9390 /E9560 /E9565 /V7350 /7100 /P30PH, POLARIS10, DCE 11.2, 8, VCE 3.4 / UVD 6.3, 3
+Radeon (TM) (RX|Pro WX) E9260 /460 /V5300X /550 /560(X) Series, POLARIS11, DCE 11.2, 8, VCE 3.4 / UVD 6.3, 3
+Radeon (RX/Pro) 500 /540(X) /550 /640 /WX2100 /WX3100 /WX200 Series, POLARIS12, DCE 11.2, 8, VCE 3.4 / UVD 6.3, 3
+Radeon (RX|TM) (PRO|WX) Vega /MI25 /V320 /V340L /8200 /9100 /SSG MxGPU, VEGA10, DCE 12, 9.0.1, VCE 4.0.0 / UVD 7.0.0, 4.0.0
+AMD Radeon (Pro) VII /MI50 /MI60, VEGA20, DCE 12, 9.4.0, VCE 4.1.0 / UVD 7.2.0, 4.2.0
+MI100, ARCTURUS, *, 9.4.1, VCN 2.5.0, 4.2.2
+MI200, ALDEBARAN, *, 9.4.2, VCN 2.6.0, 4.4.0
+AMD Radeon (RX|Pro) 5600(M|XT) /5700 (M|XT|XTB) /W5700, NAVI10, DCN 2.0.0, 10.1.10, VCN 2.0.0, 5.0.0
+AMD Radeon (Pro) 5300 /5500XTB/5500(XT|M) /W5500M /W5500, NAVI14, DCN 2.0.0, 10.1.1, VCN 2.0.2, 5.0.2
+AMD Radeon RX 6800(XT) /6900(XT) /W6800, SIENNA_CICHLID, DCN 3.0.0, 10.3.0, VCN 3.0.0, 5.2.0
+AMD Radeon RX 6700 XT / 6800M / 6700M, NAVY_FLOUNDER, DCN 3.0.0, 10.3.2, VCN 3.0.0, 5.2.2
+AMD Radeon RX 6600(XT) /6600M /W6600 /W6600M, DIMGREY_CAVEFISH, DCN 3.0.2, 10.3.4, VCN 3.0.16, 5.2.4
+AMD Radeon RX 6500M /6300M /W6500M /W6300M, BEIGE_GOBY, DCN 3.0.3, 10.3.5, VCN 3.0.33, 5.2.5
diff --git a/Documentation/gpu/amdgpu/display/dc-glossary.rst b/Documentation/gpu/amdgpu/display/dc-glossary.rst
index 116f5f0942fd..0b0ffd428dd2 100644
--- a/Documentation/gpu/amdgpu/display/dc-glossary.rst
+++ b/Documentation/gpu/amdgpu/display/dc-glossary.rst
@@ -170,7 +170,7 @@ consider asking in the amdgfx and update this page.
MC
Memory Controller
- MPC
+ MPC/MPCC
Multiple pipes and plane combine
MPO
diff --git a/Documentation/gpu/amdgpu/display/dcn-overview.rst b/Documentation/gpu/amdgpu/display/dcn-overview.rst
index f98624d7828e..9fea6500448b 100644
--- a/Documentation/gpu/amdgpu/display/dcn-overview.rst
+++ b/Documentation/gpu/amdgpu/display/dcn-overview.rst
@@ -124,6 +124,65 @@ depth format), bit-depth reduction/dithering would kick in. In OPP, we would
also apply a regamma function to introduce the gamma removed earlier back.
Eventually, we output data in integer format at DIO.
+AMD Hardware Pipeline
+---------------------
+
+When discussing graphics on Linux, the **pipeline** term can sometimes be
+overloaded with multiple meanings, so it is important to define what we mean
+when we say **pipeline**. In the DCN driver, we use the term **hardware
+pipeline** or **pipeline** or just **pipe** as an abstraction to indicate a
+sequence of DCN blocks instantiated to address some specific configuration. DC
+core treats DCN blocks as individual resources, meaning we can build a pipeline
+by taking resources for all individual hardware blocks to compose one pipeline.
+In actuality, we can't connect an arbitrary block from one pipe to a block from
+another pipe; they are routed linearly, except for DSC, which can be
+arbitrarily assigned as needed. We have this pipeline concept for trying to
+optimize bandwidth utilization.
+
+.. kernel-figure:: pipeline_4k_no_split.svg
+
+Additionally, let's take a look at parts of the DTN log (see
+'Documentation/gpu/amdgpu/display/dc-debug.rst' for more information) since
+this log can help us to see part of this pipeline behavior in real-time::
+
+ HUBP: format addr_hi width height ...
+ [ 0]: 8h 81h 3840 2160
+ [ 1]: 0h 0h 0 0
+ [ 2]: 0h 0h 0 0
+ [ 3]: 0h 0h 0 0
+ [ 4]: 0h 0h 0 0
+ ...
+ MPCC: OPP DPP ...
+ [ 0]: 0h 0h ...
+
+The first thing to notice from the diagram and DTN log it is the fact that we
+have different clock domains for each part of the DCN blocks. In this example,
+we have just a single **pipeline** where the data flows from DCHUB to DIO, as
+we intuitively expect. Nonetheless, DCN is flexible, as mentioned before, and
+we can split this single pipe differently, as described in the below diagram:
+
+.. kernel-figure:: pipeline_4k_split.svg
+
+Now, if we inspect the DTN log again we can see some interesting changes::
+
+ HUBP: format addr_hi width height ...
+ [ 0]: 8h 81h 1920 2160 ...
+ ...
+ [ 4]: 0h 0h 0 0 ...
+ [ 5]: 8h 81h 1920 2160 ...
+ ...
+ MPCC: OPP DPP ...
+ [ 0]: 0h 0h ...
+ [ 5]: 0h 5h ...
+
+From the above example, we now split the display pipeline into two vertical
+parts of 1920x2160 (i.e., 3440x2160), and as a result, we could reduce the
+clock frequency in the DPP part. This is not only useful for saving power but
+also to better handle the required throughput. The idea to keep in mind here is
+that the pipe configuration can vary a lot according to the display
+configuration, and it is the DML's responsibility to set up all required
+configuration parameters for multiple scenarios supported by our hardware.
+
Global Sync
-----------
diff --git a/Documentation/gpu/amdgpu/display/dcn2_cm_drm_current.svg b/Documentation/gpu/amdgpu/display/dcn2_cm_drm_current.svg
new file mode 100644
index 000000000000..315ffc5a1a4b
--- /dev/null
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diff --git a/Documentation/gpu/amdgpu/display/display-manager.rst b/Documentation/gpu/amdgpu/display/display-manager.rst
index 7ce31f89d9a0..b7abb18cfc82 100644
--- a/Documentation/gpu/amdgpu/display/display-manager.rst
+++ b/Documentation/gpu/amdgpu/display/display-manager.rst
@@ -40,3 +40,144 @@ Atomic Implementation
.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
:functions: amdgpu_dm_atomic_check amdgpu_dm_atomic_commit_tail
+
+Color Management Properties
+===========================
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+ :doc: overview
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
+ :internal:
+
+
+DC Color Capabilities between DCN generations
+---------------------------------------------
+
+DRM/KMS framework defines three CRTC color correction properties: degamma,
+color transformation matrix (CTM) and gamma, and two properties for degamma and
+gamma LUT sizes. AMD DC programs some of the color correction features
+pre-blending but DRM/KMS has not per-plane color correction properties.
+
+In general, the DRM CRTC color properties are programmed to DC, as follows:
+CRTC gamma after blending, and CRTC degamma pre-blending. Although CTM is
+programmed after blending, it is mapped to DPP hw blocks (pre-blending). Other
+color caps available in the hw is not currently exposed by DRM interface and
+are bypassed.
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/dc.h
+ :doc: color-management-caps
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/dc.h
+ :internal:
+
+The color pipeline has undergone major changes between DCN hardware
+generations. What's possible to do before and after blending depends on
+hardware capabilities, as illustrated below by the DCN 2.0 and DCN 3.0 families
+schemas.
+
+**DCN 2.0 family color caps and mapping**
+
+.. kernel-figure:: dcn2_cm_drm_current.svg
+
+**DCN 3.0 family color caps and mapping**
+
+.. kernel-figure:: dcn3_cm_drm_current.svg
+
+Blend Mode Properties
+=====================
+
+Pixel blend mode is a DRM plane composition property of :c:type:`drm_plane` used to
+describes how pixels from a foreground plane (fg) are composited with the
+background plane (bg). Here, we present main concepts of DRM blend mode to help
+to understand how this property is mapped to AMD DC interface. See more about
+this DRM property and the alpha blending equations in :ref:`DRM Plane
+Composition Properties <plane_composition_properties>`.
+
+Basically, a blend mode sets the alpha blending equation for plane
+composition that fits the mode in which the alpha channel affects the state of
+pixel color values and, therefore, the resulted pixel color. For
+example, consider the following elements of the alpha blending equation:
+
+- *fg.rgb*: Each of the RGB component values from the foreground's pixel.
+- *fg.alpha*: Alpha component value from the foreground's pixel.
+- *bg.rgb*: Each of the RGB component values from the background.
+- *plane_alpha*: Plane alpha value set by the **plane "alpha" property**, see
+ more in :ref:`DRM Plane Composition Properties <plane_composition_properties>`.
+
+in the basic alpha blending equation::
+
+ out.rgb = alpha * fg.rgb + (1 - alpha) * bg.rgb
+
+the alpha channel value of each pixel in a plane is ignored and only the plane
+alpha affects the resulted pixel color values.
+
+DRM has three blend mode to define the blend formula in the plane composition:
+
+* **None**: Blend formula that ignores the pixel alpha.
+
+* **Pre-multiplied**: Blend formula that assumes the pixel color values in a
+ plane was already pre-multiplied by its own alpha channel before storage.
+
+* **Coverage**: Blend formula that assumes the pixel color values were not
+ pre-multiplied with the alpha channel values.
+
+and pre-multiplied is the default pixel blend mode, that means, when no blend
+mode property is created or defined, DRM considers the plane's pixels has
+pre-multiplied color values. On IGT GPU tools, the kms_plane_alpha_blend test
+provides a set of subtests to verify plane alpha and blend mode properties.
+
+The DRM blend mode and its elements are then mapped by AMDGPU display manager
+(DM) to program the blending configuration of the Multiple Pipe/Plane Combined
+(MPC), as follows:
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
+ :doc: mpc-overview
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
+ :functions: mpcc_blnd_cfg
+
+Therefore, the blending configuration for a single MPCC instance on the MPC
+tree is defined by :c:type:`mpcc_blnd_cfg`, where
+:c:type:`pre_multiplied_alpha` is the alpha pre-multiplied mode flag used to
+set :c:type:`MPCC_ALPHA_MULTIPLIED_MODE`. It controls whether alpha is
+multiplied (true/false), being only true for DRM pre-multiplied blend mode.
+:c:type:`mpcc_alpha_blend_mode` defines the alpha blend mode regarding pixel
+alpha and plane alpha values. It sets one of the three modes for
+:c:type:`MPCC_ALPHA_BLND_MODE`, as described below.
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h
+ :functions: mpcc_alpha_blend_mode
+
+DM then maps the elements of `enum mpcc_alpha_blend_mode` to those in the DRM
+blend formula, as follows:
+
+* *MPC pixel alpha* matches *DRM fg.alpha* as the alpha component value
+ from the plane's pixel
+* *MPC global alpha* matches *DRM plane_alpha* when the pixel alpha should
+ be ignored and, therefore, pixel values are not pre-multiplied
+* *MPC global gain* assumes *MPC global alpha* value when both *DRM
+ fg.alpha* and *DRM plane_alpha* participate in the blend equation
+
+In short, *fg.alpha* is ignored by selecting
+:c:type:`MPCC_ALPHA_BLEND_MODE_GLOBAL_ALPHA`. On the other hand, (plane_alpha *
+fg.alpha) component becomes available by selecting
+:c:type:`MPCC_ALPHA_BLEND_MODE_PER_PIXEL_ALPHA_COMBINED_GLOBAL_GAIN`. And the
+:c:type:`MPCC_ALPHA_MULTIPLIED_MODE` defines if the pixel color values are
+pre-multiplied by alpha or not.
+
+Blend configuration flow
+------------------------
+
+The alpha blending equation is configured from DRM to DC interface by the
+following path:
+
+1. When updating a :c:type:`drm_plane_state <drm_plane_state>`, DM calls
+ :c:type:`fill_blending_from_plane_state()` that maps
+ :c:type:`drm_plane_state <drm_plane_state>` attributes to
+ :c:type:`dc_plane_info <dc_plane_info>` struct to be handled in the
+ OS-agnostic component (DC).
+
+2. On DC interface, :c:type:`struct mpcc_blnd_cfg <mpcc_blnd_cfg>` programs the
+ MPCC blend configuration considering the :c:type:`dc_plane_info
+ <dc_plane_info>` input from DPP.
diff --git a/Documentation/gpu/amdgpu/display/index.rst b/Documentation/gpu/amdgpu/display/index.rst
index c1fb2fb3c710..f8a4f53d70d8 100644
--- a/Documentation/gpu/amdgpu/display/index.rst
+++ b/Documentation/gpu/amdgpu/display/index.rst
@@ -28,4 +28,5 @@ table of content:
display-manager.rst
dc-debug.rst
dcn-overview.rst
+ mpo-overview.rst
dc-glossary.rst
diff --git a/Documentation/gpu/amdgpu/display/mpo-cursor.svg b/Documentation/gpu/amdgpu/display/mpo-cursor.svg
new file mode 100644
index 000000000000..9d9de76847c3
--- /dev/null
+++ b/Documentation/gpu/amdgpu/display/mpo-cursor.svg
@@ -0,0 +1,435 @@
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diff --git a/Documentation/gpu/amdgpu/display/mpo-overview.rst b/Documentation/gpu/amdgpu/display/mpo-overview.rst
new file mode 100644
index 000000000000..0499aa92d08d
--- /dev/null
+++ b/Documentation/gpu/amdgpu/display/mpo-overview.rst
@@ -0,0 +1,242 @@
+========================
+Multiplane Overlay (MPO)
+========================
+
+.. note:: You will get more from this page if you have already read the
+ 'Documentation/gpu/amdgpu/display/dcn-overview.rst'.
+
+
+Multiplane Overlay (MPO) allows for multiple framebuffers to be composited via
+fixed-function hardware in the display controller rather than using graphics or
+compute shaders for composition. This can yield some power savings if it means
+the graphics/compute pipelines can be put into low-power states. In summary,
+MPO can bring the following benefits:
+
+* Decreased GPU and CPU workload - no composition shaders needed, no extra
+ buffer copy needed, GPU can remain idle.
+* Plane independent page flips - No need to be tied to global compositor
+ page-flip present rate, reduced latency, independent timing.
+
+.. note:: Keep in mind that MPO is all about power-saving; if you want to learn
+ more about power-save in the display context, check the link:
+ `Power <https://gitlab.freedesktop.org/pq/color-and-hdr/-/blob/main/doc/power.rst>`__.
+
+Multiplane Overlay is only available using the DRM atomic model. The atomic
+model only uses a single userspace IOCTL for configuring the display hardware
+(modesetting, page-flipping, etc) - drmModeAtomicCommit. To query hardware
+resources and limitations userspace also calls into drmModeGetResources which
+reports back the number of planes, CRTCs, and connectors. There are three types
+of DRM planes that the driver can register and work with:
+
+* ``DRM_PLANE_TYPE_PRIMARY``: Primary planes represent a "main" plane for a
+ CRTC, primary planes are the planes operated upon by CRTC modesetting and
+ flipping operations.
+* ``DRM_PLANE_TYPE_CURSOR``: Cursor planes represent a "cursor" plane for a
+ CRTC. Cursor planes are the planes operated upon by the cursor IOCTLs
+* ``DRM_PLANE_TYPE_OVERLAY``: Overlay planes represent all non-primary,
+ non-cursor planes. Some drivers refer to these types of planes as "sprites"
+ internally.
+
+To illustrate how it works, let's take a look at a device that exposes the
+following planes to userspace:
+
+* 4 Primary planes (1 per CRTC).
+* 4 Cursor planes (1 per CRTC).
+* 1 Overlay plane (shared among CRTCs).
+
+.. note:: Keep in mind that different ASICs might expose other numbers of
+ planes.
+
+For this hardware example, we have 4 pipes (if you don't know what AMD pipe
+means, look at 'Documentation/gpu/amdgpu/display/dcn-overview.rst', section
+"AMD Hardware Pipeline"). Typically most AMD devices operate in a pipe-split
+configuration for optimal single display output (e.g., 2 pipes per plane).
+
+A typical MPO configuration from userspace - 1 primary + 1 overlay on a single
+display - will see 4 pipes in use, 2 per plane.
+
+At least 1 pipe must be used per plane (primary and overlay), so for this
+hypothetical hardware that we are using as an example, we have an absolute
+limit of 4 planes across all CRTCs. Atomic commits will be rejected for display
+configurations using more than 4 planes. Again, it is important to stress that
+every DCN has different restrictions; here, we are just trying to provide the
+concept idea.
+
+Plane Restrictions
+==================
+
+AMDGPU imposes restrictions on the use of DRM planes in the driver.
+
+Atomic commits will be rejected for commits which do not follow these
+restrictions:
+
+* Overlay planes must be in ARGB8888 or XRGB8888 format
+* Planes cannot be placed outside of the CRTC destination rectangle
+* Planes cannot be downscaled more than 1/4x of their original size
+* Planes cannot be upscaled more than 16x of their original size
+
+Not every property is available on every plane:
+
+* Only primary planes have color-space and non-RGB format support
+* Only overlay planes have alpha blending support
+
+Cursor Restrictions
+===================
+
+Before we start to describe some restrictions around cursor and MPO, see the
+below image:
+
+.. kernel-figure:: mpo-cursor.svg
+
+The image on the left side represents how DRM expects the cursor and planes to
+be blended. However, AMD hardware handles cursors differently, as you can see
+on the right side; basically, our cursor cannot be drawn outside its associated
+plane as it is being treated as part of the plane. Another consequence of that
+is that cursors inherit the color and scale from the plane.
+
+As a result of the above behavior, do not use legacy API to set up the cursor
+plane when working with MPO; otherwise, you might encounter unexpected
+behavior.
+
+In short, AMD HW has no dedicated cursor planes. A cursor is attached to
+another plane and therefore inherits any scaling or color processing from its
+parent plane.
+
+Use Cases
+=========
+
+Picture-in-Picture (PIP) playback - Underlay strategy
+-----------------------------------------------------
+
+Video playback should be done using the "primary plane as underlay" MPO
+strategy. This is a 2 planes configuration:
+
+* 1 YUV DRM Primary Plane (e.g. NV12 Video)
+* 1 RGBA DRM Overlay Plane (e.g. ARGB8888 desktop). The compositor should
+ prepare the framebuffers for the planes as follows:
+ - The overlay plane contains general desktop UI, video player controls, and video subtitles
+ - Primary plane contains one or more videos
+
+.. note:: Keep in mind that we could extend this configuration to more planes,
+ but that is currently not supported by our driver yet (maybe if we have a
+ userspace request in the future, we can change that).
+
+See below a single-video example:
+
+.. kernel-figure:: single-display-mpo.svg
+
+.. note:: We could extend this behavior to more planes, but that is currently
+ not supported by our driver.
+
+The video buffer should be used directly for the primary plane. The video can
+be scaled and positioned for the desktop using the properties: CRTC_X, CRTC_Y,
+CRTC_W, and CRTC_H. The primary plane should also have the color encoding and
+color range properties set based on the source content:
+
+* ``COLOR_RANGE``, ``COLOR_ENCODING``
+
+The overlay plane should be the native size of the CRTC. The compositor must
+draw a transparent cutout for where the video should be placed on the desktop
+(i.e., set the alpha to zero). The primary plane video will be visible through
+the underlay. The overlay plane's buffer may remain static while the primary
+plane's framebuffer is used for standard double-buffered playback.
+
+The compositor should create a YUV buffer matching the native size of the CRTC.
+Each video buffer should be composited onto this YUV buffer for direct YUV
+scanout. The primary plane should have the color encoding and color range
+properties set based on the source content: ``COLOR_RANGE``,
+``COLOR_ENCODING``. However, be mindful that the source color space and
+encoding match for each video since it affect the entire plane.
+
+The overlay plane should be the native size of the CRTC. The compositor must
+draw a transparent cutout for where each video should be placed on the desktop
+(i.e., set the alpha to zero). The primary plane videos will be visible through
+the underlay. The overlay plane's buffer may remain static while compositing
+operations for video playback will be done on the video buffer.
+
+This kernel interface is validated using IGT GPU Tools. The following tests can
+be run to validate positioning, blending, scaling under a variety of sequences
+and interactions with operations such as DPMS and S3:
+
+- ``kms_plane@plane-panning-bottom-right-pipe-*-planes``
+- ``kms_plane@plane-panning-bottom-right-suspend-pipe-*-``
+- ``kms_plane@plane-panning-top-left-pipe-*-``
+- ``kms_plane@plane-position-covered-pipe-*-``
+- ``kms_plane@plane-position-hole-dpms-pipe-*-``
+- ``kms_plane@plane-position-hole-pipe-*-``
+- ``kms_plane_multiple@atomic-pipe-*-tiling-``
+- ``kms_plane_scaling@pipe-*-plane-scaling``
+- ``kms_plane_alpha_blend@pipe-*-alpha-basic``
+- ``kms_plane_alpha_blend@pipe-*-alpha-transparant-fb``
+- ``kms_plane_alpha_blend@pipe-*-alpha-opaque-fb``
+- ``kms_plane_alpha_blend@pipe-*-constant-alpha-min``
+- ``kms_plane_alpha_blend@pipe-*-constant-alpha-mid``
+- ``kms_plane_alpha_blend@pipe-*-constant-alpha-max``
+
+Multiple Display MPO
+--------------------
+
+AMDGPU supports display MPO when using multiple displays; however, this feature
+behavior heavily relies on the compositor implementation. Keep in mind that
+usespace can define different policies. For example, some OSes can use MPO to
+protect the plane that handles the video playback; notice that we don't have
+many limitations for a single display. Nonetheless, this manipulation can have
+many more restrictions for a multi-display scenario. The below example shows a
+video playback in the middle of two displays, and it is up to the compositor to
+define a policy on how to handle it:
+
+.. kernel-figure:: multi-display-hdcp-mpo.svg
+
+Let's discuss some of the hardware limitations we have when dealing with
+multi-display with MPO.
+
+Limitations
+~~~~~~~~~~~
+
+For simplicity's sake, for discussing the hardware limitation, this
+documentation supposes an example where we have two displays and video playback
+that will be moved around different displays.
+
+* **Hardware limitations**
+
+From the DCN overview page, each display requires at least one pipe and each
+MPO plane needs another pipe. As a result, when the video is in the middle of
+the two displays, we need to use 2 pipes. See the example below where we avoid
+pipe split:
+
+- 1 display (1 pipe) + MPO (1 pipe), we will use two pipes
+- 2 displays (2 pipes) + MPO (1-2 pipes); we will use 4 pipes. MPO in the
+ middle of both displays needs 2 pipes.
+- 3 Displays (3 pipes) + MPO (1-2 pipes), we need 5 pipes.
+
+If we use MPO with multiple displays, the userspace has to decide to enable
+multiple MPO by the price of limiting the number of external displays supported
+or disable it in favor of multiple displays; it is a policy decision. For
+example:
+
+* When ASIC has 3 pipes, AMD hardware can NOT support 2 displays with MPO
+* When ASIC has 4 pipes, AMD hardware can NOT support 3 displays with MPO
+
+Let's briefly explore how userspace can handle these two display configurations
+on an ASIC that only supports three pipes. We can have:
+
+.. kernel-figure:: multi-display-hdcp-mpo-less-pipe-ex.svg
+
+- Total pipes are 3
+- User lights up 2 displays (2 out of 3 pipes are used)
+- User launches video (1 pipe used for MPO)
+- Now, if the user moves the video in the middle of 2 displays, one part of the
+ video won't be MPO since we have used 3/3 pipes.
+
+* **Scaling limitation**
+
+MPO cannot handle scaling less than 0.25 and more than x16. For example:
+
+If 4k video (3840x2160) is playing in windowed mode, the physical size of the
+window cannot be smaller than (960x540).
+
+.. note:: These scaling limitations might vary from ASIC to ASIC.
+
+* **Size Limitation**
+
+The minimum MPO size is 12px.
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new file mode 100644
index 000000000000..fb53b0920c87
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+ id="tspan886">DRM OVERLAY PLANE</tspan></text>
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+ id="g2874"
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diff --git a/Documentation/gpu/amdgpu/driver-misc.rst b/Documentation/gpu/amdgpu/driver-misc.rst
index e3d6b2fa2493..1800543d45f7 100644
--- a/Documentation/gpu/amdgpu/driver-misc.rst
+++ b/Documentation/gpu/amdgpu/driver-misc.rst
@@ -32,6 +32,23 @@ unique_id
.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
:doc: unique_id
+Accelerated Processing Units (APU) Info
+---------------------------------------
+
+.. csv-table::
+ :header-rows: 1
+ :widths: 3, 2, 2, 1, 1, 1
+ :file: ./apu-asic-info-table.csv
+
+Discrete GPU Info
+-----------------
+
+.. csv-table::
+ :header-rows: 1
+ :widths: 3, 2, 2, 1, 1, 1
+ :file: ./dgpu-asic-info-table.csv
+
+
GPU Memory Usage Information
============================
diff --git a/Documentation/gpu/amdgpu/thermal.rst b/Documentation/gpu/amdgpu/thermal.rst
index 8aeb0186c9ef..5e27e4eb3959 100644
--- a/Documentation/gpu/amdgpu/thermal.rst
+++ b/Documentation/gpu/amdgpu/thermal.rst
@@ -63,3 +63,60 @@ gpu_metrics
.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
:doc: gpu_metrics
+
+GFXOFF
+======
+
+GFXOFF is a feature found in most recent GPUs that saves power at runtime. The
+card's RLC (RunList Controller) firmware powers off the gfx engine
+dynamically when there is no workload on gfx or compute pipes. GFXOFF is on by
+default on supported GPUs.
+
+Userspace can interact with GFXOFF through a debugfs interface (all values in
+`uint32_t`, unless otherwise noted):
+
+``amdgpu_gfxoff``
+-----------------
+
+Use it to enable/disable GFXOFF, and to check if it's current enabled/disabled::
+
+ $ xxd -l1 -p /sys/kernel/debug/dri/0/amdgpu_gfxoff
+ 01
+
+- Write 0 to disable it, and 1 to enable it.
+- Read 0 means it's disabled, 1 it's enabled.
+
+If it's enabled, that means that the GPU is free to enter into GFXOFF mode as
+needed. Disabled means that it will never enter GFXOFF mode.
+
+``amdgpu_gfxoff_status``
+------------------------
+
+Read it to check current GFXOFF's status of a GPU::
+
+ $ xxd -l1 -p /sys/kernel/debug/dri/0/amdgpu_gfxoff_status
+ 02
+
+- 0: GPU is in GFXOFF state, the gfx engine is powered down.
+- 1: Transition out of GFXOFF state
+- 2: Not in GFXOFF state
+- 3: Transition into GFXOFF state
+
+If GFXOFF is enabled, the value will be transitioning around [0, 3], always
+getting into 0 when possible. When it's disabled, it's always at 2. Returns
+``-EINVAL`` if it's not supported.
+
+``amdgpu_gfxoff_count``
+-----------------------
+
+Read it to get the total GFXOFF entry count at the time of query since system
+power-up. The value is an `uint64_t` type, however, due to firmware limitations,
+it can currently overflow as an `uint32_t`. *Only supported in vangogh*
+
+``amdgpu_gfxoff_residency``
+---------------------------
+
+Write 1 to amdgpu_gfxoff_residency to start logging, and 0 to stop. Read it to
+get average GFXOFF residency % multiplied by 100 during the last logging
+interval. E.g. a value of 7854 means 78.54% of the time in the last logging
+interval the GPU was in GFXOFF mode. *Only supported in vangogh*
diff --git a/Documentation/gpu/drm-internals.rst b/Documentation/gpu/drm-internals.rst
index 38afed24a75c..5fd20a306718 100644
--- a/Documentation/gpu/drm-internals.rst
+++ b/Documentation/gpu/drm-internals.rst
@@ -207,6 +207,38 @@ Utilities
:internal:
+Unit testing
+============
+
+KUnit
+-----
+
+KUnit (Kernel unit testing framework) provides a common framework for unit tests
+within the Linux kernel.
+
+This section covers the specifics for the DRM subsystem. For general information
+about KUnit, please refer to Documentation/dev-tools/kunit/start.rst.
+
+How to run the tests?
+~~~~~~~~~~~~~~~~~~~~~
+
+In order to facilitate running the test suite, a configuration file is present
+in ``drivers/gpu/drm/tests/.kunitconfig``. It can be used by ``kunit.py`` as
+follows:
+
+.. code-block:: bash
+
+ $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/tests \
+ --kconfig_add CONFIG_VIRTIO_UML=y \
+ --kconfig_add CONFIG_UML_PCI_OVER_VIRTIO=y
+
+.. note::
+ The configuration included in ``.kunitconfig`` should be as generic as
+ possible.
+ ``CONFIG_VIRTIO_UML`` and ``CONFIG_UML_PCI_OVER_VIRTIO`` are not
+ included in it because they are only required for User Mode Linux.
+
+
Legacy Support Code
===================
diff --git a/Documentation/gpu/drm-kms-helpers.rst b/Documentation/gpu/drm-kms-helpers.rst
index 2d473bc64c9f..dbc85fd7a971 100644
--- a/Documentation/gpu/drm-kms-helpers.rst
+++ b/Documentation/gpu/drm-kms-helpers.rst
@@ -122,13 +122,13 @@ format Helper Functions Reference
.. kernel-doc:: drivers/gpu/drm/drm_format_helper.c
:export:
-Framebuffer CMA Helper Functions Reference
+Framebuffer DMA Helper Functions Reference
==========================================
-.. kernel-doc:: drivers/gpu/drm/drm_fb_cma_helper.c
- :doc: framebuffer cma helper functions
+.. kernel-doc:: drivers/gpu/drm/drm_fb_dma_helper.c
+ :doc: framebuffer dma helper functions
-.. kernel-doc:: drivers/gpu/drm/drm_fb_cma_helper.c
+.. kernel-doc:: drivers/gpu/drm/drm_fb_dma_helper.c
:export:
Framebuffer GEM Helper Reference
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index 6f9c064fd323..b4377a545425 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -532,6 +532,8 @@ Standard Plane Properties
.. kernel-doc:: drivers/gpu/drm/drm_plane.c
:doc: standard plane properties
+.. _plane_composition_properties:
+
Plane Composition Properties
----------------------------
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index f32ccce5722d..a79fd3549ff8 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -300,12 +300,12 @@ Drivers that want to map the GEM object upfront instead of handling page
faults can implement their own mmap file operation handler.
For platforms without MMU the GEM core provides a helper method
-drm_gem_cma_get_unmapped_area(). The mmap() routines will call this to get a
+drm_gem_dma_get_unmapped_area(). The mmap() routines will call this to get a
proposed address for the mapping.
-To use drm_gem_cma_get_unmapped_area(), drivers must fill the struct
+To use drm_gem_dma_get_unmapped_area(), drivers must fill the struct
:c:type:`struct file_operations <file_operations>` get_unmapped_area field with
-a pointer on drm_gem_cma_get_unmapped_area().
+a pointer on drm_gem_dma_get_unmapped_area().
More detailed information about get_unmapped_area can be found in
Documentation/admin-guide/mm/nommu-mmap.rst
@@ -355,16 +355,16 @@ GEM Function Reference
.. kernel-doc:: drivers/gpu/drm/drm_gem.c
:export:
-GEM CMA Helper Functions Reference
+GEM DMA Helper Functions Reference
----------------------------------
-.. kernel-doc:: drivers/gpu/drm/drm_gem_cma_helper.c
- :doc: cma helpers
+.. kernel-doc:: drivers/gpu/drm/drm_gem_dma_helper.c
+ :doc: dma helpers
-.. kernel-doc:: include/drm/drm_gem_cma_helper.h
+.. kernel-doc:: include/drm/drm_gem_dma_helper.h
:internal:
-.. kernel-doc:: drivers/gpu/drm/drm_gem_cma_helper.c
+.. kernel-doc:: drivers/gpu/drm/drm_gem_dma_helper.c
:export:
GEM SHMEM Helper Function Reference
diff --git a/Documentation/gpu/drm-usage-stats.rst b/Documentation/gpu/drm-usage-stats.rst
index 6c9f166a8d6f..92c5117368d7 100644
--- a/Documentation/gpu/drm-usage-stats.rst
+++ b/Documentation/gpu/drm-usage-stats.rst
@@ -105,6 +105,27 @@ object belong to this client, in the respective memory region.
Default unit shall be bytes with optional unit specifiers of 'KiB' or 'MiB'
indicating kibi- or mebi-bytes.
+- drm-cycles-<str> <uint>
+
+Engine identifier string must be the same as the one specified in the
+drm-engine-<str> tag and shall contain the number of busy cycles for the given
+engine.
+
+Values are not required to be constantly monotonic if it makes the driver
+implementation easier, but are required to catch up with the previously reported
+larger value within a reasonable period. Upon observing a value lower than what
+was previously read, userspace is expected to stay with that larger previous
+value until a monotonic update is seen.
+
+- drm-maxfreq-<str> <uint> [Hz|MHz|KHz]
+
+Engine identifier string must be the same as the one specified in the
+drm-engine-<str> tag and shall contain the maximum frequency for the given
+engine. Taken together with drm-cycles-<str>, this can be used to calculate
+percentage utilization of the engine, whereas drm-engine-<str> only reflects
+time active without considering what frequency the engine is operating as a
+percentage of it's maximum frequency.
+
===============================
Driver specific implementations
===============================
diff --git a/Documentation/gpu/i915.rst b/Documentation/gpu/i915.rst
index 54060cd6c419..4e59db1cfb00 100644
--- a/Documentation/gpu/i915.rst
+++ b/Documentation/gpu/i915.rst
@@ -246,6 +246,18 @@ Display State Buffer
.. kernel-doc:: drivers/gpu/drm/i915/display/intel_dsb.c
:internal:
+GT Programming
+==============
+
+Multicast/Replicated (MCR) Registers
+------------------------------------
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/intel_gt_mcr.c
+ :doc: GT Multicast/Replicated (MCR) Register Support
+
+.. kernel-doc:: drivers/gpu/drm/i915/gt/intel_gt_mcr.c
+ :internal:
+
Memory Management and Command Submission
========================================
diff --git a/Documentation/gpu/rfc/i915_small_bar.h b/Documentation/gpu/rfc/i915_small_bar.h
new file mode 100644
index 000000000000..6003c81d5aa4
--- /dev/null
+++ b/Documentation/gpu/rfc/i915_small_bar.h
@@ -0,0 +1,189 @@
+/**
+ * struct __drm_i915_memory_region_info - Describes one region as known to the
+ * driver.
+ *
+ * Note this is using both struct drm_i915_query_item and struct drm_i915_query.
+ * For this new query we are adding the new query id DRM_I915_QUERY_MEMORY_REGIONS
+ * at &drm_i915_query_item.query_id.
+ */
+struct __drm_i915_memory_region_info {
+ /** @region: The class:instance pair encoding */
+ struct drm_i915_gem_memory_class_instance region;
+
+ /** @rsvd0: MBZ */
+ __u32 rsvd0;
+
+ /**
+ * @probed_size: Memory probed by the driver
+ *
+ * Note that it should not be possible to ever encounter a zero value
+ * here, also note that no current region type will ever return -1 here.
+ * Although for future region types, this might be a possibility. The
+ * same applies to the other size fields.
+ */
+ __u64 probed_size;
+
+ /**
+ * @unallocated_size: Estimate of memory remaining
+ *
+ * Requires CAP_PERFMON or CAP_SYS_ADMIN to get reliable accounting.
+ * Without this (or if this is an older kernel) the value here will
+ * always equal the @probed_size. Note this is only currently tracked
+ * for I915_MEMORY_CLASS_DEVICE regions (for other types the value here
+ * will always equal the @probed_size).
+ */
+ __u64 unallocated_size;
+
+ union {
+ /** @rsvd1: MBZ */
+ __u64 rsvd1[8];
+ struct {
+ /**
+ * @probed_cpu_visible_size: Memory probed by the driver
+ * that is CPU accessible.
+ *
+ * This will be always be <= @probed_size, and the
+ * remainder (if there is any) will not be CPU
+ * accessible.
+ *
+ * On systems without small BAR, the @probed_size will
+ * always equal the @probed_cpu_visible_size, since all
+ * of it will be CPU accessible.
+ *
+ * Note this is only tracked for
+ * I915_MEMORY_CLASS_DEVICE regions (for other types the
+ * value here will always equal the @probed_size).
+ *
+ * Note that if the value returned here is zero, then
+ * this must be an old kernel which lacks the relevant
+ * small-bar uAPI support (including
+ * I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS), but on
+ * such systems we should never actually end up with a
+ * small BAR configuration, assuming we are able to load
+ * the kernel module. Hence it should be safe to treat
+ * this the same as when @probed_cpu_visible_size ==
+ * @probed_size.
+ */
+ __u64 probed_cpu_visible_size;
+
+ /**
+ * @unallocated_cpu_visible_size: Estimate of CPU
+ * visible memory remaining
+ *
+ * Note this is only tracked for
+ * I915_MEMORY_CLASS_DEVICE regions (for other types the
+ * value here will always equal the
+ * @probed_cpu_visible_size).
+ *
+ * Requires CAP_PERFMON or CAP_SYS_ADMIN to get reliable
+ * accounting. Without this the value here will always
+ * equal the @probed_cpu_visible_size. Note this is only
+ * currently tracked for I915_MEMORY_CLASS_DEVICE
+ * regions (for other types the value here will also
+ * always equal the @probed_cpu_visible_size).
+ *
+ * If this is an older kernel the value here will be
+ * zero, see also @probed_cpu_visible_size.
+ */
+ __u64 unallocated_cpu_visible_size;
+ };
+ };
+};
+
+/**
+ * struct __drm_i915_gem_create_ext - Existing gem_create behaviour, with added
+ * extension support using struct i915_user_extension.
+ *
+ * Note that new buffer flags should be added here, at least for the stuff that
+ * is immutable. Previously we would have two ioctls, one to create the object
+ * with gem_create, and another to apply various parameters, however this
+ * creates some ambiguity for the params which are considered immutable. Also in
+ * general we're phasing out the various SET/GET ioctls.
+ */
+struct __drm_i915_gem_create_ext {
+ /**
+ * @size: Requested size for the object.
+ *
+ * The (page-aligned) allocated size for the object will be returned.
+ *
+ * Note that for some devices we have might have further minimum
+ * page-size restrictions (larger than 4K), like for device local-memory.
+ * However in general the final size here should always reflect any
+ * rounding up, if for example using the I915_GEM_CREATE_EXT_MEMORY_REGIONS
+ * extension to place the object in device local-memory. The kernel will
+ * always select the largest minimum page-size for the set of possible
+ * placements as the value to use when rounding up the @size.
+ */
+ __u64 size;
+
+ /**
+ * @handle: Returned handle for the object.
+ *
+ * Object handles are nonzero.
+ */
+ __u32 handle;
+
+ /**
+ * @flags: Optional flags.
+ *
+ * Supported values:
+ *
+ * I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS - Signal to the kernel that
+ * the object will need to be accessed via the CPU.
+ *
+ * Only valid when placing objects in I915_MEMORY_CLASS_DEVICE, and only
+ * strictly required on configurations where some subset of the device
+ * memory is directly visible/mappable through the CPU (which we also
+ * call small BAR), like on some DG2+ systems. Note that this is quite
+ * undesirable, but due to various factors like the client CPU, BIOS etc
+ * it's something we can expect to see in the wild. See
+ * &__drm_i915_memory_region_info.probed_cpu_visible_size for how to
+ * determine if this system applies.
+ *
+ * Note that one of the placements MUST be I915_MEMORY_CLASS_SYSTEM, to
+ * ensure the kernel can always spill the allocation to system memory,
+ * if the object can't be allocated in the mappable part of
+ * I915_MEMORY_CLASS_DEVICE.
+ *
+ * Also note that since the kernel only supports flat-CCS on objects
+ * that can *only* be placed in I915_MEMORY_CLASS_DEVICE, we therefore
+ * don't support I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS together with
+ * flat-CCS.
+ *
+ * Without this hint, the kernel will assume that non-mappable
+ * I915_MEMORY_CLASS_DEVICE is preferred for this object. Note that the
+ * kernel can still migrate the object to the mappable part, as a last
+ * resort, if userspace ever CPU faults this object, but this might be
+ * expensive, and so ideally should be avoided.
+ *
+ * On older kernels which lack the relevant small-bar uAPI support (see
+ * also &__drm_i915_memory_region_info.probed_cpu_visible_size),
+ * usage of the flag will result in an error, but it should NEVER be
+ * possible to end up with a small BAR configuration, assuming we can
+ * also successfully load the i915 kernel module. In such cases the
+ * entire I915_MEMORY_CLASS_DEVICE region will be CPU accessible, and as
+ * such there are zero restrictions on where the object can be placed.
+ */
+#define I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS (1 << 0)
+ __u32 flags;
+
+ /**
+ * @extensions: The chain of extensions to apply to this object.
+ *
+ * This will be useful in the future when we need to support several
+ * different extensions, and we need to apply more than one when
+ * creating the object. See struct i915_user_extension.
+ *
+ * If we don't supply any extensions then we get the same old gem_create
+ * behaviour.
+ *
+ * For I915_GEM_CREATE_EXT_MEMORY_REGIONS usage see
+ * struct drm_i915_gem_create_ext_memory_regions.
+ *
+ * For I915_GEM_CREATE_EXT_PROTECTED_CONTENT usage see
+ * struct drm_i915_gem_create_ext_protected_content.
+ */
+#define I915_GEM_CREATE_EXT_MEMORY_REGIONS 0
+#define I915_GEM_CREATE_EXT_PROTECTED_CONTENT 1
+ __u64 extensions;
+};
diff --git a/Documentation/gpu/rfc/i915_small_bar.rst b/Documentation/gpu/rfc/i915_small_bar.rst
new file mode 100644
index 000000000000..d6c03ce3b862
--- /dev/null
+++ b/Documentation/gpu/rfc/i915_small_bar.rst
@@ -0,0 +1,47 @@
+==========================
+I915 Small BAR RFC Section
+==========================
+Starting from DG2 we will have resizable BAR support for device local-memory(i.e
+I915_MEMORY_CLASS_DEVICE), but in some cases the final BAR size might still be
+smaller than the total probed_size. In such cases, only some subset of
+I915_MEMORY_CLASS_DEVICE will be CPU accessible(for example the first 256M),
+while the remainder is only accessible via the GPU.
+
+I915_GEM_CREATE_EXT_FLAG_NEEDS_CPU_ACCESS flag
+----------------------------------------------
+New gem_create_ext flag to tell the kernel that a BO will require CPU access.
+This becomes important when placing an object in I915_MEMORY_CLASS_DEVICE, where
+underneath the device has a small BAR, meaning only some portion of it is CPU
+accessible. Without this flag the kernel will assume that CPU access is not
+required, and prioritize using the non-CPU visible portion of
+I915_MEMORY_CLASS_DEVICE.
+
+.. kernel-doc:: Documentation/gpu/rfc/i915_small_bar.h
+ :functions: __drm_i915_gem_create_ext
+
+probed_cpu_visible_size attribute
+---------------------------------
+New struct__drm_i915_memory_region attribute which returns the total size of the
+CPU accessible portion, for the particular region. This should only be
+applicable for I915_MEMORY_CLASS_DEVICE. We also report the
+unallocated_cpu_visible_size, alongside the unallocated_size.
+
+Vulkan will need this as part of creating a separate VkMemoryHeap with the
+VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT set, to represent the CPU visible portion,
+where the total size of the heap needs to be known. It also wants to be able to
+give a rough estimate of how memory can potentially be allocated.
+
+.. kernel-doc:: Documentation/gpu/rfc/i915_small_bar.h
+ :functions: __drm_i915_memory_region_info
+
+Error Capture restrictions
+--------------------------
+With error capture we have two new restrictions:
+
+ 1) Error capture is best effort on small BAR systems; if the pages are not
+ CPU accessible, at the time of capture, then the kernel is free to skip
+ trying to capture them.
+
+ 2) On discrete and newer integrated platforms we now reject error capture
+ on recoverable contexts. In the future the kernel may want to blit during
+ error capture, when for example something is not currently CPU accessible.
diff --git a/Documentation/gpu/rfc/i915_vm_bind.h b/Documentation/gpu/rfc/i915_vm_bind.h
new file mode 100644
index 000000000000..8a8fcd4fceac
--- /dev/null
+++ b/Documentation/gpu/rfc/i915_vm_bind.h
@@ -0,0 +1,291 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+/**
+ * DOC: I915_PARAM_VM_BIND_VERSION
+ *
+ * VM_BIND feature version supported.
+ * See typedef drm_i915_getparam_t param.
+ *
+ * Specifies the VM_BIND feature version supported.
+ * The following versions of VM_BIND have been defined:
+ *
+ * 0: No VM_BIND support.
+ *
+ * 1: In VM_UNBIND calls, the UMD must specify the exact mappings created
+ * previously with VM_BIND, the ioctl will not support unbinding multiple
+ * mappings or splitting them. Similarly, VM_BIND calls will not replace
+ * any existing mappings.
+ *
+ * 2: The restrictions on unbinding partial or multiple mappings is
+ * lifted, Similarly, binding will replace any mappings in the given range.
+ *
+ * See struct drm_i915_gem_vm_bind and struct drm_i915_gem_vm_unbind.
+ */
+#define I915_PARAM_VM_BIND_VERSION 57
+
+/**
+ * DOC: I915_VM_CREATE_FLAGS_USE_VM_BIND
+ *
+ * Flag to opt-in for VM_BIND mode of binding during VM creation.
+ * See struct drm_i915_gem_vm_control flags.
+ *
+ * The older execbuf2 ioctl will not support VM_BIND mode of operation.
+ * For VM_BIND mode, we have new execbuf3 ioctl which will not accept any
+ * execlist (See struct drm_i915_gem_execbuffer3 for more details).
+ */
+#define I915_VM_CREATE_FLAGS_USE_VM_BIND (1 << 0)
+
+/* VM_BIND related ioctls */
+#define DRM_I915_GEM_VM_BIND 0x3d
+#define DRM_I915_GEM_VM_UNBIND 0x3e
+#define DRM_I915_GEM_EXECBUFFER3 0x3f
+
+#define DRM_IOCTL_I915_GEM_VM_BIND DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_VM_BIND, struct drm_i915_gem_vm_bind)
+#define DRM_IOCTL_I915_GEM_VM_UNBIND DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_VM_UNBIND, struct drm_i915_gem_vm_bind)
+#define DRM_IOCTL_I915_GEM_EXECBUFFER3 DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER3, struct drm_i915_gem_execbuffer3)
+
+/**
+ * struct drm_i915_gem_timeline_fence - An input or output timeline fence.
+ *
+ * The operation will wait for input fence to signal.
+ *
+ * The returned output fence will be signaled after the completion of the
+ * operation.
+ */
+struct drm_i915_gem_timeline_fence {
+ /** @handle: User's handle for a drm_syncobj to wait on or signal. */
+ __u32 handle;
+
+ /**
+ * @flags: Supported flags are:
+ *
+ * I915_TIMELINE_FENCE_WAIT:
+ * Wait for the input fence before the operation.
+ *
+ * I915_TIMELINE_FENCE_SIGNAL:
+ * Return operation completion fence as output.
+ */
+ __u32 flags;
+#define I915_TIMELINE_FENCE_WAIT (1 << 0)
+#define I915_TIMELINE_FENCE_SIGNAL (1 << 1)
+#define __I915_TIMELINE_FENCE_UNKNOWN_FLAGS (-(I915_TIMELINE_FENCE_SIGNAL << 1))
+
+ /**
+ * @value: A point in the timeline.
+ * Value must be 0 for a binary drm_syncobj. A Value of 0 for a
+ * timeline drm_syncobj is invalid as it turns a drm_syncobj into a
+ * binary one.
+ */
+ __u64 value;
+};
+
+/**
+ * struct drm_i915_gem_vm_bind - VA to object mapping to bind.
+ *
+ * This structure is passed to VM_BIND ioctl and specifies the mapping of GPU
+ * virtual address (VA) range to the section of an object that should be bound
+ * in the device page table of the specified address space (VM).
+ * The VA range specified must be unique (ie., not currently bound) and can
+ * be mapped to whole object or a section of the object (partial binding).
+ * Multiple VA mappings can be created to the same section of the object
+ * (aliasing).
+ *
+ * The @start, @offset and @length must be 4K page aligned. However the DG2
+ * and XEHPSDV has 64K page size for device local memory and has compact page
+ * table. On those platforms, for binding device local-memory objects, the
+ * @start, @offset and @length must be 64K aligned. Also, UMDs should not mix
+ * the local memory 64K page and the system memory 4K page bindings in the same
+ * 2M range.
+ *
+ * Error code -EINVAL will be returned if @start, @offset and @length are not
+ * properly aligned. In version 1 (See I915_PARAM_VM_BIND_VERSION), error code
+ * -ENOSPC will be returned if the VA range specified can't be reserved.
+ *
+ * VM_BIND/UNBIND ioctl calls executed on different CPU threads concurrently
+ * are not ordered. Furthermore, parts of the VM_BIND operation can be done
+ * asynchronously, if valid @fence is specified.
+ */
+struct drm_i915_gem_vm_bind {
+ /** @vm_id: VM (address space) id to bind */
+ __u32 vm_id;
+
+ /** @handle: Object handle */
+ __u32 handle;
+
+ /** @start: Virtual Address start to bind */
+ __u64 start;
+
+ /** @offset: Offset in object to bind */
+ __u64 offset;
+
+ /** @length: Length of mapping to bind */
+ __u64 length;
+
+ /**
+ * @flags: Supported flags are:
+ *
+ * I915_GEM_VM_BIND_CAPTURE:
+ * Capture this mapping in the dump upon GPU error.
+ *
+ * Note that @fence carries its own flags.
+ */
+ __u64 flags;
+#define I915_GEM_VM_BIND_CAPTURE (1 << 0)
+
+ /**
+ * @fence: Timeline fence for bind completion signaling.
+ *
+ * Timeline fence is of format struct drm_i915_gem_timeline_fence.
+ *
+ * It is an out fence, hence using I915_TIMELINE_FENCE_WAIT flag
+ * is invalid, and an error will be returned.
+ *
+ * If I915_TIMELINE_FENCE_SIGNAL flag is not set, then out fence
+ * is not requested and binding is completed synchronously.
+ */
+ struct drm_i915_gem_timeline_fence fence;
+
+ /**
+ * @extensions: Zero-terminated chain of extensions.
+ *
+ * For future extensions. See struct i915_user_extension.
+ */
+ __u64 extensions;
+};
+
+/**
+ * struct drm_i915_gem_vm_unbind - VA to object mapping to unbind.
+ *
+ * This structure is passed to VM_UNBIND ioctl and specifies the GPU virtual
+ * address (VA) range that should be unbound from the device page table of the
+ * specified address space (VM). VM_UNBIND will force unbind the specified
+ * range from device page table without waiting for any GPU job to complete.
+ * It is UMDs responsibility to ensure the mapping is no longer in use before
+ * calling VM_UNBIND.
+ *
+ * If the specified mapping is not found, the ioctl will simply return without
+ * any error.
+ *
+ * VM_BIND/UNBIND ioctl calls executed on different CPU threads concurrently
+ * are not ordered. Furthermore, parts of the VM_UNBIND operation can be done
+ * asynchronously, if valid @fence is specified.
+ */
+struct drm_i915_gem_vm_unbind {
+ /** @vm_id: VM (address space) id to bind */
+ __u32 vm_id;
+
+ /** @rsvd: Reserved, MBZ */
+ __u32 rsvd;
+
+ /** @start: Virtual Address start to unbind */
+ __u64 start;
+
+ /** @length: Length of mapping to unbind */
+ __u64 length;
+
+ /**
+ * @flags: Currently reserved, MBZ.
+ *
+ * Note that @fence carries its own flags.
+ */
+ __u64 flags;
+
+ /**
+ * @fence: Timeline fence for unbind completion signaling.
+ *
+ * Timeline fence is of format struct drm_i915_gem_timeline_fence.
+ *
+ * It is an out fence, hence using I915_TIMELINE_FENCE_WAIT flag
+ * is invalid, and an error will be returned.
+ *
+ * If I915_TIMELINE_FENCE_SIGNAL flag is not set, then out fence
+ * is not requested and unbinding is completed synchronously.
+ */
+ struct drm_i915_gem_timeline_fence fence;
+
+ /**
+ * @extensions: Zero-terminated chain of extensions.
+ *
+ * For future extensions. See struct i915_user_extension.
+ */
+ __u64 extensions;
+};
+
+/**
+ * struct drm_i915_gem_execbuffer3 - Structure for DRM_I915_GEM_EXECBUFFER3
+ * ioctl.
+ *
+ * DRM_I915_GEM_EXECBUFFER3 ioctl only works in VM_BIND mode and VM_BIND mode
+ * only works with this ioctl for submission.
+ * See I915_VM_CREATE_FLAGS_USE_VM_BIND.
+ */
+struct drm_i915_gem_execbuffer3 {
+ /**
+ * @ctx_id: Context id
+ *
+ * Only contexts with user engine map are allowed.
+ */
+ __u32 ctx_id;
+
+ /**
+ * @engine_idx: Engine index
+ *
+ * An index in the user engine map of the context specified by @ctx_id.
+ */
+ __u32 engine_idx;
+
+ /**
+ * @batch_address: Batch gpu virtual address/es.
+ *
+ * For normal submission, it is the gpu virtual address of the batch
+ * buffer. For parallel submission, it is a pointer to an array of
+ * batch buffer gpu virtual addresses with array size equal to the
+ * number of (parallel) engines involved in that submission (See
+ * struct i915_context_engines_parallel_submit).
+ */
+ __u64 batch_address;
+
+ /** @flags: Currently reserved, MBZ */
+ __u64 flags;
+
+ /** @rsvd1: Reserved, MBZ */
+ __u32 rsvd1;
+
+ /** @fence_count: Number of fences in @timeline_fences array. */
+ __u32 fence_count;
+
+ /**
+ * @timeline_fences: Pointer to an array of timeline fences.
+ *
+ * Timeline fences are of format struct drm_i915_gem_timeline_fence.
+ */
+ __u64 timeline_fences;
+
+ /** @rsvd2: Reserved, MBZ */
+ __u64 rsvd2;
+
+ /**
+ * @extensions: Zero-terminated chain of extensions.
+ *
+ * For future extensions. See struct i915_user_extension.
+ */
+ __u64 extensions;
+};
+
+/**
+ * struct drm_i915_gem_create_ext_vm_private - Extension to make the object
+ * private to the specified VM.
+ *
+ * See struct drm_i915_gem_create_ext.
+ */
+struct drm_i915_gem_create_ext_vm_private {
+#define I915_GEM_CREATE_EXT_VM_PRIVATE 2
+ /** @base: Extension link. See struct i915_user_extension. */
+ struct i915_user_extension base;
+
+ /** @vm_id: Id of the VM to which the object is private */
+ __u32 vm_id;
+};
diff --git a/Documentation/gpu/rfc/i915_vm_bind.rst b/Documentation/gpu/rfc/i915_vm_bind.rst
new file mode 100644
index 000000000000..9a1dcdf2799e
--- /dev/null
+++ b/Documentation/gpu/rfc/i915_vm_bind.rst
@@ -0,0 +1,245 @@
+==========================================
+I915 VM_BIND feature design and use cases
+==========================================
+
+VM_BIND feature
+================
+DRM_I915_GEM_VM_BIND/UNBIND ioctls allows UMD to bind/unbind GEM buffer
+objects (BOs) or sections of a BOs at specified GPU virtual addresses on a
+specified address space (VM). These mappings (also referred to as persistent
+mappings) will be persistent across multiple GPU submissions (execbuf calls)
+issued by the UMD, without user having to provide a list of all required
+mappings during each submission (as required by older execbuf mode).
+
+The VM_BIND/UNBIND calls allow UMDs to request a timeline out fence for
+signaling the completion of bind/unbind operation.
+
+VM_BIND feature is advertised to user via I915_PARAM_VM_BIND_VERSION.
+User has to opt-in for VM_BIND mode of binding for an address space (VM)
+during VM creation time via I915_VM_CREATE_FLAGS_USE_VM_BIND extension.
+
+VM_BIND/UNBIND ioctl calls executed on different CPU threads concurrently are
+not ordered. Furthermore, parts of the VM_BIND/UNBIND operations can be done
+asynchronously, when valid out fence is specified.
+
+VM_BIND features include:
+
+* Multiple Virtual Address (VA) mappings can map to the same physical pages
+ of an object (aliasing).
+* VA mapping can map to a partial section of the BO (partial binding).
+* Support capture of persistent mappings in the dump upon GPU error.
+* Support for userptr gem objects (no special uapi is required for this).
+
+TLB flush consideration
+------------------------
+The i915 driver flushes the TLB for each submission and when an object's
+pages are released. The VM_BIND/UNBIND operation will not do any additional
+TLB flush. Any VM_BIND mapping added will be in the working set for subsequent
+submissions on that VM and will not be in the working set for currently running
+batches (which would require additional TLB flushes, which is not supported).
+
+Execbuf ioctl in VM_BIND mode
+-------------------------------
+A VM in VM_BIND mode will not support older execbuf mode of binding.
+The execbuf ioctl handling in VM_BIND mode differs significantly from the
+older execbuf2 ioctl (See struct drm_i915_gem_execbuffer2).
+Hence, a new execbuf3 ioctl has been added to support VM_BIND mode. (See
+struct drm_i915_gem_execbuffer3). The execbuf3 ioctl will not accept any
+execlist. Hence, no support for implicit sync. It is expected that the below
+work will be able to support requirements of object dependency setting in all
+use cases:
+
+"dma-buf: Add an API for exporting sync files"
+(https://lwn.net/Articles/859290/)
+
+The new execbuf3 ioctl only works in VM_BIND mode and the VM_BIND mode only
+works with execbuf3 ioctl for submission. All BOs mapped on that VM (through
+VM_BIND call) at the time of execbuf3 call are deemed required for that
+submission.
+
+The execbuf3 ioctl directly specifies the batch addresses instead of as
+object handles as in execbuf2 ioctl. The execbuf3 ioctl will also not
+support many of the older features like in/out/submit fences, fence array,
+default gem context and many more (See struct drm_i915_gem_execbuffer3).
+
+In VM_BIND mode, VA allocation is completely managed by the user instead of
+the i915 driver. Hence all VA assignment, eviction are not applicable in
+VM_BIND mode. Also, for determining object activeness, VM_BIND mode will not
+be using the i915_vma active reference tracking. It will instead use dma-resv
+object for that (See `VM_BIND dma_resv usage`_).
+
+So, a lot of existing code supporting execbuf2 ioctl, like relocations, VA
+evictions, vma lookup table, implicit sync, vma active reference tracking etc.,
+are not applicable for execbuf3 ioctl. Hence, all execbuf3 specific handling
+should be in a separate file and only functionalities common to these ioctls
+can be the shared code where possible.
+
+VM_PRIVATE objects
+-------------------
+By default, BOs can be mapped on multiple VMs and can also be dma-buf
+exported. Hence these BOs are referred to as Shared BOs.
+During each execbuf submission, the request fence must be added to the
+dma-resv fence list of all shared BOs mapped on the VM.
+
+VM_BIND feature introduces an optimization where user can create BO which
+is private to a specified VM via I915_GEM_CREATE_EXT_VM_PRIVATE flag during
+BO creation. Unlike Shared BOs, these VM private BOs can only be mapped on
+the VM they are private to and can't be dma-buf exported.
+All private BOs of a VM share the dma-resv object. Hence during each execbuf
+submission, they need only one dma-resv fence list updated. Thus, the fast
+path (where required mappings are already bound) submission latency is O(1)
+w.r.t the number of VM private BOs.
+
+VM_BIND locking hirarchy
+-------------------------
+The locking design here supports the older (execlist based) execbuf mode, the
+newer VM_BIND mode, the VM_BIND mode with GPU page faults and possible future
+system allocator support (See `Shared Virtual Memory (SVM) support`_).
+The older execbuf mode and the newer VM_BIND mode without page faults manages
+residency of backing storage using dma_fence. The VM_BIND mode with page faults
+and the system allocator support do not use any dma_fence at all.
+
+VM_BIND locking order is as below.
+
+1) Lock-A: A vm_bind mutex will protect vm_bind lists. This lock is taken in
+ vm_bind/vm_unbind ioctl calls, in the execbuf path and while releasing the
+ mapping.
+
+ In future, when GPU page faults are supported, we can potentially use a
+ rwsem instead, so that multiple page fault handlers can take the read side
+ lock to lookup the mapping and hence can run in parallel.
+ The older execbuf mode of binding do not need this lock.
+
+2) Lock-B: The object's dma-resv lock will protect i915_vma state and needs to
+ be held while binding/unbinding a vma in the async worker and while updating
+ dma-resv fence list of an object. Note that private BOs of a VM will all
+ share a dma-resv object.
+
+ The future system allocator support will use the HMM prescribed locking
+ instead.
+
+3) Lock-C: Spinlock/s to protect some of the VM's lists like the list of
+ invalidated vmas (due to eviction and userptr invalidation) etc.
+
+When GPU page faults are supported, the execbuf path do not take any of these
+locks. There we will simply smash the new batch buffer address into the ring and
+then tell the scheduler run that. The lock taking only happens from the page
+fault handler, where we take lock-A in read mode, whichever lock-B we need to
+find the backing storage (dma_resv lock for gem objects, and hmm/core mm for
+system allocator) and some additional locks (lock-D) for taking care of page
+table races. Page fault mode should not need to ever manipulate the vm lists,
+so won't ever need lock-C.
+
+VM_BIND LRU handling
+---------------------
+We need to ensure VM_BIND mapped objects are properly LRU tagged to avoid
+performance degradation. We will also need support for bulk LRU movement of
+VM_BIND objects to avoid additional latencies in execbuf path.
+
+The page table pages are similar to VM_BIND mapped objects (See
+`Evictable page table allocations`_) and are maintained per VM and needs to
+be pinned in memory when VM is made active (ie., upon an execbuf call with
+that VM). So, bulk LRU movement of page table pages is also needed.
+
+VM_BIND dma_resv usage
+-----------------------
+Fences needs to be added to all VM_BIND mapped objects. During each execbuf
+submission, they are added with DMA_RESV_USAGE_BOOKKEEP usage to prevent
+over sync (See enum dma_resv_usage). One can override it with either
+DMA_RESV_USAGE_READ or DMA_RESV_USAGE_WRITE usage during explicit object
+dependency setting.
+
+Note that DRM_I915_GEM_WAIT and DRM_I915_GEM_BUSY ioctls do not check for
+DMA_RESV_USAGE_BOOKKEEP usage and hence should not be used for end of batch
+check. Instead, the execbuf3 out fence should be used for end of batch check
+(See struct drm_i915_gem_execbuffer3).
+
+Also, in VM_BIND mode, use dma-resv apis for determining object activeness
+(See dma_resv_test_signaled() and dma_resv_wait_timeout()) and do not use the
+older i915_vma active reference tracking which is deprecated. This should be
+easier to get it working with the current TTM backend.
+
+Mesa use case
+--------------
+VM_BIND can potentially reduce the CPU overhead in Mesa (both Vulkan and Iris),
+hence improving performance of CPU-bound applications. It also allows us to
+implement Vulkan's Sparse Resources. With increasing GPU hardware performance,
+reducing CPU overhead becomes more impactful.
+
+
+Other VM_BIND use cases
+========================
+
+Long running Compute contexts
+------------------------------
+Usage of dma-fence expects that they complete in reasonable amount of time.
+Compute on the other hand can be long running. Hence it is appropriate for
+compute to use user/memory fence (See `User/Memory Fence`_) and dma-fence usage
+must be limited to in-kernel consumption only.
+
+Where GPU page faults are not available, kernel driver upon buffer invalidation
+will initiate a suspend (preemption) of long running context, finish the
+invalidation, revalidate the BO and then resume the compute context. This is
+done by having a per-context preempt fence which is enabled when someone tries
+to wait on it and triggers the context preemption.
+
+User/Memory Fence
+~~~~~~~~~~~~~~~~~~
+User/Memory fence is a <address, value> pair. To signal the user fence, the
+specified value will be written at the specified virtual address and wakeup the
+waiting process. User fence can be signaled either by the GPU or kernel async
+worker (like upon bind completion). User can wait on a user fence with a new
+user fence wait ioctl.
+
+Here is some prior work on this:
+https://patchwork.freedesktop.org/patch/349417/
+
+Low Latency Submission
+~~~~~~~~~~~~~~~~~~~~~~~
+Allows compute UMD to directly submit GPU jobs instead of through execbuf
+ioctl. This is made possible by VM_BIND is not being synchronized against
+execbuf. VM_BIND allows bind/unbind of mappings required for the directly
+submitted jobs.
+
+Debugger
+---------
+With debug event interface user space process (debugger) is able to keep track
+of and act upon resources created by another process (debugged) and attached
+to GPU via vm_bind interface.
+
+GPU page faults
+----------------
+GPU page faults when supported (in future), will only be supported in the
+VM_BIND mode. While both the older execbuf mode and the newer VM_BIND mode of
+binding will require using dma-fence to ensure residency, the GPU page faults
+mode when supported, will not use any dma-fence as residency is purely managed
+by installing and removing/invalidating page table entries.
+
+Page level hints settings
+--------------------------
+VM_BIND allows any hints setting per mapping instead of per BO. Possible hints
+include placement and atomicity. Sub-BO level placement hint will be even more
+relevant with upcoming GPU on-demand page fault support.
+
+Page level Cache/CLOS settings
+-------------------------------
+VM_BIND allows cache/CLOS settings per mapping instead of per BO.
+
+Evictable page table allocations
+---------------------------------
+Make pagetable allocations evictable and manage them similar to VM_BIND
+mapped objects. Page table pages are similar to persistent mappings of a
+VM (difference here are that the page table pages will not have an i915_vma
+structure and after swapping pages back in, parent page link needs to be
+updated).
+
+Shared Virtual Memory (SVM) support
+------------------------------------
+VM_BIND interface can be used to map system memory directly (without gem BO
+abstraction) using the HMM interface. SVM is only supported with GPU page
+faults enabled.
+
+VM_BIND UAPI
+=============
+
+.. kernel-doc:: Documentation/gpu/rfc/i915_vm_bind.h
diff --git a/Documentation/gpu/rfc/index.rst b/Documentation/gpu/rfc/index.rst
index 91e93a705230..476719771eef 100644
--- a/Documentation/gpu/rfc/index.rst
+++ b/Documentation/gpu/rfc/index.rst
@@ -23,3 +23,11 @@ host such documentation:
.. toctree::
i915_scheduler.rst
+
+.. toctree::
+
+ i915_small_bar.rst
+
+.. toctree::
+
+ i915_vm_bind.rst
diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 10bfb50908d1..393d218e4a0c 100644
--- a/Documentation/gpu/todo.rst
+++ b/Documentation/gpu/todo.rst
@@ -322,18 +322,6 @@ Contact: Daniel Vetter, Noralf Tronnes
Level: Advanced
-idr_init_base()
----------------
-
-DRM core&drivers uses a lot of idr (integer lookup directories) for mapping
-userspace IDs to internal objects, and in most places ID=0 means NULL and hence
-is never used. Switching to idr_init_base() for these would make the idr more
-efficient.
-
-Contact: Daniel Vetter
-
-Level: Starter
-
struct drm_gem_object_funcs
---------------------------
@@ -343,19 +331,6 @@ converted, except for struct drm_driver.gem_prime_mmap.
Level: Intermediate
-Rename CMA helpers to DMA helpers
----------------------------------
-
-CMA (standing for contiguous memory allocator) is really a bit an accident of
-what these were used for first, a much better name would be DMA helpers. In the
-text these should even be called coherent DMA memory helpers (so maybe CDM, but
-no one knows what that means) since underneath they just use dma_alloc_coherent.
-
-Contact: Laurent Pinchart, Daniel Vetter
-
-Level: Intermediate (mostly because it is a huge tasks without good partial
-milestones, not technically itself that challenging)
-
connector register/unregister fixes
-----------------------------------
@@ -704,6 +679,74 @@ Contact: Sam Ravnborg
Level: Advanced
+Brightness handling on devices with multiple internal panels
+============================================================
+
+On x86/ACPI devices there can be multiple backlight firmware interfaces:
+(ACPI) video, vendor specific and others. As well as direct/native (PWM)
+register programming by the KMS driver.
+
+To deal with this backlight drivers used on x86/ACPI call
+acpi_video_get_backlight_type() which has heuristics (+quirks) to select
+which backlight interface to use; and backlight drivers which do not match
+the returned type will not register themselves, so that only one backlight
+device gets registered (in a single GPU setup, see below).
+
+At the moment this more or less assumes that there will only
+be 1 (internal) panel on a system.
+
+On systems with 2 panels this may be a problem, depending on
+what interface acpi_video_get_backlight_type() selects:
+
+1. native: in this case the KMS driver is expected to know which backlight
+ device belongs to which output so everything should just work.
+2. video: this does support controlling multiple backlights, but some work
+ will need to be done to get the output <-> backlight device mapping
+
+The above assumes both panels will require the same backlight interface type.
+Things will break on systems with multiple panels where the 2 panels need
+a different type of control. E.g. one panel needs ACPI video backlight control,
+where as the other is using native backlight control. Currently in this case
+only one of the 2 required backlight devices will get registered, based on
+the acpi_video_get_backlight_type() return value.
+
+If this (theoretical) case ever shows up, then supporting this will need some
+work. A possible solution here would be to pass a device and connector-name
+to acpi_video_get_backlight_type() so that it can deal with this.
+
+Note in a way we already have a case where userspace sees 2 panels,
+in dual GPU laptop setups with a mux. On those systems we may see
+either 2 native backlight devices; or 2 native backlight devices.
+
+Userspace already has code to deal with this by detecting if the related
+panel is active (iow which way the mux between the GPU and the panels
+points) and then uses that backlight device. Userspace here very much
+assumes a single panel though. It picks only 1 of the 2 backlight devices
+and then only uses that one.
+
+Note that all userspace code (that I know off) is currently hardcoded
+to assume a single panel.
+
+Before the recent changes to not register multiple (e.g. video + native)
+/sys/class/backlight devices for a single panel (on a single GPU laptop),
+userspace would see multiple backlight devices all controlling the same
+backlight.
+
+To deal with this userspace had to always picks one preferred device under
+/sys/class/backlight and will ignore the others. So to support brightness
+control on multiple panels userspace will need to be updated too.
+
+There are plans to allow brightness control through the KMS API by adding
+a "display brightness" property to drm_connector objects for panels. This
+solves a number of issues with the /sys/class/backlight API, including not
+being able to map a sysfs backlight device to a specific connector. Any
+userspace changes to add support for brightness control on devices with
+multiple panels really should build on top of this new KMS property.
+
+Contact: Hans de Goede
+
+Level: Advanced
+
Outside DRM
===========
diff --git a/Documentation/gpu/vkms.rst b/Documentation/gpu/vkms.rst
index 9c873c3912cc..49db221c0f52 100644
--- a/Documentation/gpu/vkms.rst
+++ b/Documentation/gpu/vkms.rst
@@ -102,12 +102,6 @@ Debugging:
- kms_plane: some test cases are failing due to timeout on capturing CRC;
-- kms_flip: when running test cases in sequence, some successful individual
- test cases are failing randomly; when individually, some successful test
- cases display in the log the following error::
-
- [drm:vkms_prepare_fb [vkms]] ERROR vmap failed: -4
-
Virtual hardware (vblank-less) mode:
- VKMS already has support for vblanks simulated via hrtimers, which can be
@@ -124,15 +118,10 @@ Add Plane Features
There's lots of plane features we could add support for:
-- Clearing primary plane: clear primary plane before plane composition (at the
- start) for correctness of pixel blend ops. It also guarantees alpha channel
- is cleared in the target buffer for stable crc. [Good to get started]
-
- ARGB format on primary plane: blend the primary plane into background with
translucent alpha.
-- Support when the primary plane isn't exactly matching the output size: blend
- the primary plane into the black background.
+- Add background color KMS property[Good to get started].
- Full alpha blending on all planes.
diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst
index 717e28226cde..e238533b5fe0 100644
--- a/Documentation/hwmon/aquacomputer_d5next.rst
+++ b/Documentation/hwmon/aquacomputer_d5next.rst
@@ -9,6 +9,8 @@ Supported devices:
* Aquacomputer Farbwerk RGB controller
* Aquacomputer Farbwerk 360 RGB controller
* Aquacomputer Octo fan controller
+* Aquacomputer Quadro fan controller
+* Aquacomputer High Flow Next sensor
Author: Aleksa Savic
@@ -19,10 +21,11 @@ This driver exposes hardware sensors of listed Aquacomputer devices, which
communicate through proprietary USB HID protocols.
For the D5 Next pump, available sensors are pump and fan speed, power, voltage
-and current, as well as coolant temperature. Also available through debugfs are
-the serial number, firmware version and power-on count. Attaching a fan to it is
-optional and allows it to be controlled using temperature curves directly from the
-pump. If it's not connected, the fan-related sensors will report zeroes.
+and current, as well as coolant temperature and eight virtual temp sensors. Also
+available through debugfs are the serial number, firmware version and power-on
+count. Attaching a fan to it is optional and allows it to be controlled using
+temperature curves directly from the pump. If it's not connected, the fan-related
+sensors will report zeroes.
The pump can be configured either through software or via its physical
interface. Configuring the pump through this driver is not implemented, as it
@@ -30,11 +33,23 @@ seems to require sending it a complete configuration. That includes addressable
RGB LEDs, for which there is no standard sysfs interface. Thus, that task is
better suited for userspace tools.
-The Octo exposes four temperature sensors and eight PWM controllable fans, along
-with their speed (in RPM), power, voltage and current.
+The Octo exposes four physical and sixteen virtual temperature sensors, as well as
+eight PWM controllable fans, along with their speed (in RPM), power, voltage and
+current.
-The Farbwerk and Farbwerk 360 expose four temperature sensors. Depending on the device,
-not all sysfs and debugfs entries will be available.
+The Quadro exposes four physical and sixteen virtual temperature sensors, a flow
+sensor and four PWM controllable fans, along with their speed (in RPM), power,
+voltage and current.
+
+The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally,
+sixteen virtual temperature sensors of the Farbwerk 360 are exposed.
+
+The High Flow Next exposes +5V voltages, water quality, conductivity and flow readings.
+A temperature sensor can be connected to it, in which case it provides its reading
+and an estimation of the dissipated/absorbed power in the liquid cooling loop.
+
+Depending on the device, not all sysfs and debugfs entries will be available.
+Writing to virtual temperature sensors is not currently supported.
Usage notes
-----------
@@ -45,13 +60,14 @@ the kernel and supports hotswapping.
Sysfs entries
-------------
-================ =============================================
-temp[1-4]_input Temperature sensors (in millidegrees Celsius)
-fan[1-2]_input Pump/fan speed (in RPM)
-power[1-2]_input Pump/fan power (in micro Watts)
-in[0-2]_input Pump/fan voltage (in milli Volts)
-curr[1-2]_input Pump/fan current (in milli Amperes)
-================ =============================================
+================ ==============================================================
+temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
+fan[1-8]_input Pump/fan speed (in RPM) / Flow speed (in dL/h)
+power[1-8]_input Pump/fan power (in micro Watts)
+in[0-7]_input Pump/fan voltage (in milli Volts)
+curr[1-8]_input Pump/fan current (in milli Amperes)
+pwm[1-8] Fan PWM (0 - 255)
+================ ==============================================================
Debugfs entries
---------------
diff --git a/Documentation/hwmon/asus_ec_sensors.rst b/Documentation/hwmon/asus_ec_sensors.rst
index 78ca69eda877..02f4ad314a1e 100644
--- a/Documentation/hwmon/asus_ec_sensors.rst
+++ b/Documentation/hwmon/asus_ec_sensors.rst
@@ -13,12 +13,16 @@ Supported boards:
* ROG CROSSHAIR VIII FORMULA
* ROG CROSSHAIR VIII HERO
* ROG CROSSHAIR VIII IMPACT
+ * ROG MAXIMUS XI HERO
+ * ROG MAXIMUS XI HERO (WI-FI)
* ROG STRIX B550-E GAMING
* ROG STRIX B550-I GAMING
* ROG STRIX X570-E GAMING
* ROG STRIX X570-E GAMING WIFI II
* ROG STRIX X570-F GAMING
* ROG STRIX X570-I GAMING
+ * ROG STRIX Z690-A GAMING WIFI D4
+ * ROG ZENITH II EXTREME
Authors:
- Eugene Shalygin <eugene.shalygin@gmail.com>
diff --git a/Documentation/hwmon/asus_wmi_ec_sensors.rst b/Documentation/hwmon/asus_wmi_ec_sensors.rst
deleted file mode 100644
index 1b287f229e86..000000000000
--- a/Documentation/hwmon/asus_wmi_ec_sensors.rst
+++ /dev/null
@@ -1,38 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0-or-later
-
-Kernel driver asus_wmi_ec_sensors
-=================================
-
-Supported boards:
- * PRIME X570-PRO,
- * Pro WS X570-ACE,
- * ROG CROSSHAIR VIII DARK HERO,
- * ROG CROSSHAIR VIII FORMULA,
- * ROG CROSSHAIR VIII HERO,
- * ROG STRIX B550-E GAMING,
- * ROG STRIX B550-I GAMING,
- * ROG STRIX X570-E GAMING.
-
-Authors:
- - Eugene Shalygin <eugene.shalygin@gmail.com>
-
-Description:
-------------
-ASUS mainboards publish hardware monitoring information via Super I/O
-chip and the ACPI embedded controller (EC) registers. Some of the sensors
-are only available via the EC.
-
-ASUS WMI interface provides a method (BREC) to read data from EC registers,
-which is utilized by this driver to publish those sensor readings to the
-HWMON system. The driver is aware of and reads the following sensors:
-
-1. Chipset (PCH) temperature
-2. CPU package temperature
-3. Motherboard temperature
-4. Readings from the T_Sensor header
-5. VRM temperature
-6. CPU_Opt fan RPM
-7. Chipset fan RPM
-8. Readings from the "Water flow meter" header (RPM)
-9. Readings from the "Water In" and "Water Out" temperature headers
-10. CPU current
diff --git a/Documentation/hwmon/corsair-psu.rst b/Documentation/hwmon/corsair-psu.rst
index e8378e7a1d8c..3c1b164eb3c0 100644
--- a/Documentation/hwmon/corsair-psu.rst
+++ b/Documentation/hwmon/corsair-psu.rst
@@ -15,7 +15,7 @@ Supported devices:
Corsair HX850i
- Corsair HX1000i
+ Corsair HX1000i (revision 1 and 2)
Corsair HX1200i
@@ -86,8 +86,9 @@ Debugfs entries
---------------
======================= ========================================================
-uptime Current uptime of the psu
+ocpmode Single or multi rail mode of the PCIe power connectors
+product Product name of the psu
+uptime Session uptime of the psu
uptime_total Total uptime of the psu
vendor Vendor name of the psu
-product Product name of the psu
======================= ========================================================
diff --git a/Documentation/hwmon/dell-smm-hwmon.rst b/Documentation/hwmon/dell-smm-hwmon.rst
index e5d85e40972c..d8f1d6859b96 100644
--- a/Documentation/hwmon/dell-smm-hwmon.rst
+++ b/Documentation/hwmon/dell-smm-hwmon.rst
@@ -46,6 +46,9 @@ temp[1-10]_input RO Temperature reading in milli-degrees
temp[1-10]_label RO Temperature sensor label.
=============================== ======= =======================================
+Due to the nature of the SMM interface, each pwmX attribute controls
+fan number X.
+
Disabling automatic BIOS fan control
------------------------------------
diff --git a/Documentation/hwmon/emc2305.rst b/Documentation/hwmon/emc2305.rst
new file mode 100644
index 000000000000..2403dbaf2728
--- /dev/null
+++ b/Documentation/hwmon/emc2305.rst
@@ -0,0 +1,37 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver emc2305
+=====================
+
+Supported chips:
+ Microchip EMC2305, EMC2303, EMC2302, EMC2301
+
+ Addresses scanned: I2C 0x27, 0x2c, 0x2d, 0x2e, 0x2f, 0x4c, 0x4d
+ Prefixes: 'emc2305'
+
+ Datasheet: Publicly available at the Microchip website :
+ https://www.microchip.com/en-us/product/EMC2305
+
+Description:
+------------
+This driver implements support for Microchip EMC2301/2/3/5 RPM-based PWM Fan Controller.
+The EMC2305 Fan Controller supports up to 5 independently controlled PWM fan drives.
+Fan rotation speeds are reported in RPM.
+The driver supports the RPM-based PWM control to keep a fan at the desired speed.
+The driver provides the possibility to have one common PWM interface for all FANs
+or up to the maximum available or configured independent PWMs.
+
+The driver provides the following sysfs interfaces in hwmon subsystem:
+
+================= == ===================================================
+fan[1-5]_fault RO files for tachometers TACH1-TACH5 fault indication
+fan[1-5]_input RO files for tachometers TACH1-TACH5 input (in RPM)
+pwm[1-5] RW file for fan[1-5] target duty cycle (0..255)
+================= == ===================================================
+
+sysfs interfaces in thermal subsystem:
+
+================= == ========================================================================
+cur_state RW file for the current cooling state of the cooling device (0..max_state)
+max_state RO file for the maximum cooling state of the cooling device
+================= == ========================================================================
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index a72c16872ec2..c1d11cf13eef 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -44,7 +44,6 @@ Hardware Monitoring Kernel Drivers
asc7621
aspeed-pwm-tacho
asus_ec_sensors
- asus_wmi_ec_sensors
asus_wmi_sensors
bcm54140
bel-pfe
@@ -63,6 +62,7 @@ Hardware Monitoring Kernel Drivers
ds620
emc1403
emc2103
+ emc2305
emc6w201
f71805f
f71882fg
@@ -109,6 +109,7 @@ Hardware Monitoring Kernel Drivers
lm95234
lm95245
lochnagar
+ lt7182s
ltc2992
ltc2945
ltc2947
@@ -132,6 +133,7 @@ Hardware Monitoring Kernel Drivers
max20751
max31722
max31730
+ max31760
max31785
max31790
max34440
@@ -204,6 +206,7 @@ Hardware Monitoring Kernel Drivers
tps23861
tps40422
tps53679
+ tps546d24
twl4030-madc-hwmon
ucd9000
ucd9200
diff --git a/Documentation/hwmon/lm90.rst b/Documentation/hwmon/lm90.rst
index 05391fb4042d..23af17a0ab44 100644
--- a/Documentation/hwmon/lm90.rst
+++ b/Documentation/hwmon/lm90.rst
@@ -3,6 +3,14 @@ Kernel driver lm90
Supported chips:
+ * National Semiconductor LM84
+
+ Prefix: 'lm84'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the National Semiconductor website
+
* National Semiconductor LM90
Prefix: 'lm90'
@@ -43,6 +51,30 @@ Supported chips:
http://www.national.com/mpf/LM/LM86.html
+ * Analog Devices ADM1020
+
+ Prefix: 'adm1020'
+
+ Addresses scanned: I2C 0x4c - 0x4e
+
+ Datasheet: Publicly available at the Analog Devices website
+
+ * Analog Devices ADM1021
+
+ Prefix: 'adm1021'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the Analog Devices website
+
+ * Analog Devices ADM1021A/ADM1023
+
+ Prefix: 'adm1023'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the Analog Devices website
+
* Analog Devices ADM1032
Prefix: 'adm1032'
@@ -73,6 +105,36 @@ Supported chips:
https://www.onsemi.com/PowerSolutions/product.do?id=ADT7461A
+ * Analog Devices ADT7481
+
+ Prefix: 'adt7481'
+
+ Addresses scanned: I2C 0x4b and 0x4c
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=ADT7481
+
+ * Analog Devices ADT7482
+
+ Prefix: 'adt7482'
+
+ Addresses scanned: I2C 0x4c
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=ADT7482
+
+ * Analog Devices ADT7483A
+
+ Prefix: 'adt7483a'
+
+ Addresses scanned: I2C 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=ADT7483A
+
* ON Semiconductor NCT1008
Prefix: 'nct1008'
@@ -83,6 +145,72 @@ Supported chips:
https://www.onsemi.com/PowerSolutions/product.do?id=NCT1008
+ * ON Semiconductor NCT210
+
+ Prefix: 'adm1021'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=NCT210
+
+ * ON Semiconductor NCT214
+
+ Prefix: 'nct214'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=NCT214
+
+ * ON Semiconductor NCT218
+
+ Prefix: 'nct218'
+
+ Addresses scanned: I2C 0x4c - 0x4d
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=NCT218
+
+ * ON Semiconductor NCT72
+
+ Prefix: 'nct72'
+
+ Addresses scanned: I2C 0x4c - 0x4d
+
+ Datasheet: Publicly available at the ON Semiconductor website
+
+ https://www.onsemi.com/PowerSolutions/product.do?id=NCT72
+
+ * Maxim MAX1617
+
+ Prefix: 'max1617'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the Maxim website
+
+ * Maxim MAX1617A
+
+ Prefix: 'max1617a'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the Maxim website
+
+ * Maxim MAX6642
+
+ Prefix: 'max6642'
+
+ Addresses scanned: I2C 0x48-0x4f
+
+ Datasheet: Publicly available at the Maxim website
+
+ http://datasheets.maxim-ic.com/en/ds/MAX6642.pdf
+
* Maxim MAX6646
Prefix: 'max6646'
@@ -105,7 +233,7 @@ Supported chips:
* Maxim MAX6648
- Prefix: 'max6646'
+ Prefix: 'max6648'
Addresses scanned: I2C 0x4c
@@ -191,7 +319,7 @@ Supported chips:
* Maxim MAX6692
- Prefix: 'max6646'
+ Prefix: 'max6648'
Addresses scanned: I2C 0x4c
@@ -275,6 +403,46 @@ Supported chips:
https://www.ti.com/lit/gpn/tmp461
+ * Philips NE1617, NE1617A
+
+ Prefix: 'max1617' (probably detected as a max1617)
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheets: Publicly available at the Philips website
+
+ * Philips NE1618
+
+ Prefix: 'ne1618'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheets: Publicly available at the Philips website
+
+ * Genesys Logic GL523SM
+
+ Prefix: 'gl523sm'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet:
+
+ * TI THMC10
+
+ Prefix: 'thmc10'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the TI website
+
+ * Onsemi MC1066
+
+ Prefix: 'mc1066'
+
+ Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
+
+ Datasheet: Publicly available at the Onsemi website
+
Author: Jean Delvare <jdelvare@suse.de>
@@ -285,6 +453,12 @@ The LM90 is a digital temperature sensor. It senses its own temperature as
well as the temperature of up to one external diode. It is compatible
with many other devices, many of which are supported by this driver.
+The family of chips supported by this driver is derived from MAX1617.
+This chip as well as various compatible chips support a local and a remote
+temperature sensor with 8 bit accuracy. Later chips provide improved accuracy
+and other additional features such as hysteresis and temperature offset
+registers.
+
Note that there is no easy way to differentiate between the MAX6657,
MAX6658 and MAX6659 variants. The extra features of the MAX6659 are only
supported by this driver if the chip is located at address 0x4d or 0x4e,
@@ -292,15 +466,31 @@ or if the chip type is explicitly selected as max6659.
The MAX6680 and MAX6681 only differ in their pinout, therefore they obviously
can't (and don't need to) be distinguished.
-The specificity of this family of chipsets over the ADM1021/LM84
-family is that it features critical limits with hysteresis, and an
-increased resolution of the remote temperature measurement.
-
The different chipsets of the family are not strictly identical, although
very similar. For reference, here comes a non-exhaustive list of specific
features:
+LM84:
+ * 8 bit sensor resolution
+
+ADM1020, ADM1021, GL523SM, MAX1617, NE1617, NE1617A, THMC10:
+ * 8 bit sensor resolution
+ * Low temperature limits
+
+NCT210, NE1618:
+ * 11 bit sensor resolution for remote temperature sensor
+ * Low temperature limits
+
+ADM1021A, ADM1023:
+ * Temperature offset register for remote temperature sensor
+ * 11 bit resolution for remote temperature sensor
+ * Low temperature limits
+
LM90:
+ * 11 bit resolution for remote temperature sensor
+ * Temperature offset register for remote temperature sensor
+ * Low and critical temperature limits
+ * Configurable conversion rate
* Filter and alert configuration register at 0xBF.
* ALERT is triggered by temperatures over critical limits.
@@ -322,8 +512,31 @@ ADM1032:
ADT7461, ADT7461A, NCT1008:
* Extended temperature range (breaks compatibility)
* Lower resolution for remote temperature
+ * SMBus PEC support for Write Byte and Receive Byte transactions.
+ * 10 bit temperature resolution
+
+ADT7481, ADT7482, ADT7483:
+ * Temperature offset register
+ * SMBus PEC support
+ * 10 bit temperature resolution for external sensors
+ * Two remote sensors
+ * Selectable address (ADT7483)
+
+MAX6642:
+ * No critical limit register
+ * Conversion rate not configurable
+ * Better local resolution (10 bit)
+ * 10 bit external sensor resolution
+
+MAX6646, MAX6647, MAX6649:
+ * Better local resolution
+ * Extended range unsigned external temperature
+
+MAX6648, MAX6692:
+ * Better local resolution
+ * Unsigned temperature
-MAX6654:
+MAX6654, MAX6690:
* Better local resolution
* Selectable address
* Remote sensor type selection
@@ -423,6 +636,6 @@ two transactions will typically mean twice as much delay waiting for
transaction completion, effectively doubling the register cache refresh time.
I guess reliability comes at a price, but it's quite expensive this time.
-So, as not everyone might enjoy the slowdown, PEC can be disabled through
-sysfs. Just write 0 to the "pec" file and PEC will be disabled. Write 1
-to that file to enable PEC again.
+So, as not everyone might enjoy the slowdown, PEC is disabled by default and
+can be enabled through sysfs. Just write 1 to the "pec" file and PEC will be
+enabled. Write 0 to that file to disable PEC again.
diff --git a/Documentation/hwmon/lt7182s.rst b/Documentation/hwmon/lt7182s.rst
new file mode 100644
index 000000000000..f7268311b191
--- /dev/null
+++ b/Documentation/hwmon/lt7182s.rst
@@ -0,0 +1,92 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver lt7182s
+=====================
+
+Supported chips:
+
+ * ADI LT7182S
+
+ Prefix: 'lt7182s'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.analog.com/en/products/lt7182s.html
+
+Author: Guenter Roeck <linux@roeck-us.net>
+
+
+Description
+-----------
+
+LT7182S is a Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher with
+Digital Power System Management support.
+
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Example: the following commands will load the driver for a LT7182S
+at address 0x4f on I2C bus #4::
+
+ # modprobe lt7182s
+ # echo lt7182s 0x4f > /sys/bus/i2c/devices/i2c-4/new_device
+
+It can also be instantiated by declaring an entry in device tree.
+
+
+Sysfs attributes
+----------------
+
+======================= ====================================
+curr[1-2]_label "iin[12]"
+curr[1-2]_input Measured input current
+curr[1-2]_max Maximum input current
+curr[1-2]_max_alarm Current high alarm
+
+curr[3-4]_label "iout[1-2]"
+curr[3-4]_input Measured output current
+curr[3-4]_highest Highest measured output current
+curr[3-4]_max Maximum output current
+curr[3-4]_max_alarm Output current high alarm
+
+in[1-2]_label "vin[12]"
+in[1-2]_input Measured input voltage
+in[1-2]_highest Highest measured input voltage
+in[1-2]_crit Critical maximum input voltage
+in[1-2]_crit_alarm Input voltage critical high alarm
+in[1-2]_min Minimum input voltage
+in[1-2]_min_alarm Input voltage low alarm
+in[1-2]_rated_min Rated minimum input voltage
+in[1-2]_rated_max Rated maximum input voltage
+in1_reset_history Write to reset history for all attributes
+
+in[3-5]_label "vmon[1-3]"
+in[3-5]_input Measured voltage on ITH1/ITH2/EXTVCC pins
+ Only available if enabled with MFR_ADC_CONTROL_LT7182S
+ command.
+
+in[3-4|6-7]_label "vout[1-2]"
+in[3-4|6-7]_input Measured output voltage
+in[3-4|6-7]_highest Highest measured output voltage
+in[3-4|6-7]_lcrit Critical minimum output voltage
+in[3-4|6-7]_lcrit_alarm Output voltage critical low alarm
+in[3-4|6-7]_min Minimum output voltage
+in[3-4|6-7]_max_alarm Output voltage low alarm
+in[3-4|6-7]_max Maximum output voltage
+in[3-4|6-7]_max_alarm Output voltage high alarm
+in[3-4|6-7]_crit Critical maximum output voltage
+in[3-4|6-7]_crit_alarm Output voltage critical high alarm
+
+power[1-2]_label "pout[1-2]"
+power[1-2]_input Measured output power
+
+temp1_input Measured temperature
+temp1_crit Critical high temperature
+temp1_crit_alarm Chip temperature critical high alarm
+temp1_max Maximum temperature
+temp1_max_alarm Chip temperature high alarm
+======================= ====================================
diff --git a/Documentation/hwmon/max31760.rst b/Documentation/hwmon/max31760.rst
new file mode 100644
index 000000000000..b1b55fb843c1
--- /dev/null
+++ b/Documentation/hwmon/max31760.rst
@@ -0,0 +1,77 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver max31760
+======================
+
+Supported chips:
+ * Analog Devices MAX31760
+
+ Prefix: 'max31760'
+
+ Addresses scanned: none
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31760.pdf
+
+
+Author: Ibrahim Tilki <Ibrahim.Tilki@analog.com>
+
+Description
+-----------
+
+The MAX31760 integrates temperature sensing along with precision PWM fan
+control. It accurately measures its local die temperature and the remote
+temperature of a discrete diode-connected transistor, such as a 2N3906,
+or a thermal diode commonly found on CPUs, graphics processor units (GPUs),
+and other ASICs. Multiple temperature thresholds, such as local
+high/overtemperature (OT) and remote high/overtemperature, can be set by an
+I2C-compatible interface. Fan speed is controlled based on the temperature
+reading as an index to a 48-byte lookup table (LUT) containing
+user-programmed PWM values. The flexible LUT-based architecture enables
+the user to program a smooth nonlinear fan speed vs. temperature transfer
+function to minimize acoustic fan noise. Two tachometer inputs allow
+measuring the speeds of two fans independently. When the local or remote
+OT threshold is exceeded, the SHDN pin is asserted low and can be used to
+shut down the system. A dedicated ALERT pin reports that either a local or
+remote high-temperature threshold has been exceeded.
+
+Temperature measurement range: from -55°C to 125°C
+
+Temperature Resolution: 11 Bits, ±0.125°C
+
+Please refer how to instantiate this driver: Documentation/i2c/instantiating-devices.rst
+
+Lookup table for auto fan control
+---------------------------------
+
+========= =================================
+LUT Index Name
+========= =================================
+1 PWM value for T < +18°C
+2 PWM value for +18°C ≤ T < +20°C
+3 PWM value for +20°C ≤ T < +22°C
+... ...
+47 PWM value for +108°C ≤ T < +110°C
+48 PWM value for T ≥ +110°C
+========= =================================
+
+Sysfs entries
+-------------
+
+=============================== =================================================================================
+fan[1-2]_input Fan speed (in RPM)
+fan[1-2]_enable Enable fan readings and fan fault alarms
+fan[1-2]_fault Fan fault status
+temp[1-2]_label "Remote" and "Local" temperature channel labels
+temp[1-2]_input Temperature sensor readings (in millidegrees Celsius)
+temp1_fault Remote temperature sensor fault status
+temp[1-2]_max Temperature max value. Asserts "ALERT" pin when exceeded
+temp[1-2]_max_alarm Temperature max alarm status
+temp[1-2]_crit Temperature critical value. Asserts "SHDN" pin when exceeded
+temp[1-2]_crit_alarm Temperature critical alarm status
+pwm1 PWM value for direct fan control
+pwm1_enable 1: direct fan control, 2: temperature based auto fan control
+pwm1_freq PWM frequency in hertz
+pwm1_auto_channels_temp Temperature source for auto fan control. 1: temp1, 2: temp2, 3: max(temp1, temp2)
+pwm1_auto_point[1-48]_pwm PWM value for LUT point
+pwm1_auto_point_temp_hyst Temperature hysteresis for auto fan control. Can be either 2000mC or 4000mC
+=============================== =================================================================================
diff --git a/Documentation/hwmon/max31790.rst b/Documentation/hwmon/max31790.rst
index 7b097c3b9b90..33c5c7330efc 100644
--- a/Documentation/hwmon/max31790.rst
+++ b/Documentation/hwmon/max31790.rst
@@ -38,6 +38,7 @@ Sysfs entries
fan[1-12]_input RO fan tachometer speed in RPM
fan[1-12]_fault RO fan experienced fault
fan[1-6]_target RW desired fan speed in RPM
+fan[1-6]_enable RW enable or disable the tachometer input
pwm[1-6]_enable RW regulator mode, 0=disabled (duty cycle=0%), 1=manual mode, 2=rpm mode
pwm[1-6] RW read: current pwm duty cycle,
write: target pwm duty cycle (0-255)
diff --git a/Documentation/hwmon/pmbus-core.rst b/Documentation/hwmon/pmbus-core.rst
index e7e0c9ef10be..84c5a4e40c40 100644
--- a/Documentation/hwmon/pmbus-core.rst
+++ b/Documentation/hwmon/pmbus-core.rst
@@ -121,6 +121,15 @@ Specifically, it provides the following information.
non-standard PMBus commands to standard commands, or to augment standard
command return values with device specific information.
+PEC Support
+===========
+
+Many PMBus devices support SMBus PEC (Packet Error Checking). If supported
+by both the I2C adapter and by the PMBus chip, it is by default enabled.
+If PEC is supported, the PMBus core driver adds an attribute named 'pec' to
+the I2C device. This attribute can be used to control PEC support in the
+communication with the PMBus chip.
+
API functions
=============
diff --git a/Documentation/hwmon/pwm-fan.rst b/Documentation/hwmon/pwm-fan.rst
index 82fe96742fee..f77998b204ef 100644
--- a/Documentation/hwmon/pwm-fan.rst
+++ b/Documentation/hwmon/pwm-fan.rst
@@ -18,3 +18,15 @@ the hwmon's sysfs interface.
The fan rotation speed returned via the optional 'fan1_input' is extrapolated
from the sampled interrupts from the tachometer signal within 1 second.
+
+The driver provides the following sensor accesses in sysfs:
+
+=============== ======= =======================================================
+fan1_input ro fan tachometer speed in RPM
+pwm1_enable rw keep enable mode, defines behaviour when pwm1=0
+ 0 -> disable pwm and regulator
+ 1 -> enable pwm; if pwm==0, disable pwm, keep regulator enabled
+ 2 -> enable pwm; if pwm==0, keep pwm and regulator enabled
+ 3 -> enable pwm; if pwm==0, disable pwm and regulator
+pwm1 rw relative speed (0-255), 255=max. speed.
+=============== ======= =======================================================
diff --git a/Documentation/hwmon/submitting-patches.rst b/Documentation/hwmon/submitting-patches.rst
index 9a218ea996d8..d953ee763c96 100644
--- a/Documentation/hwmon/submitting-patches.rst
+++ b/Documentation/hwmon/submitting-patches.rst
@@ -12,7 +12,6 @@ increase the chances of your change being accepted.
* It should be unnecessary to mention, but please read and follow:
- Documentation/process/submit-checklist.rst
- - Documentation/process/submitting-drivers.rst
- Documentation/process/submitting-patches.rst
- Documentation/process/coding-style.rst
diff --git a/Documentation/hwmon/tps546d24.rst b/Documentation/hwmon/tps546d24.rst
new file mode 100644
index 000000000000..97adb8a30fc0
--- /dev/null
+++ b/Documentation/hwmon/tps546d24.rst
@@ -0,0 +1,35 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+Kernel driver tps546d24
+=======================
+
+Supported chips:
+
+ * TI TPS546D24
+
+ Prefix: 'tps546d24'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.ti.com/lit/gpn/tps546d24
+
+Author: Duke Du <dukedu83@gmail.com>
+
+
+Description
+-----------
+
+The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable
+of high frequency operation and 40-A current output from a 7-mm x 5-mm
+package.
+
+Two, three, and four TPS546D24A devices can be interconnected
+to provide up to 160 A on a single output. The device has an option to
+overdrive the internal 5-V LDO with an external 5-V supply via the VDD5
+pin to improve efficiency and reduce power dissipation of the converter.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
diff --git a/Documentation/i2c/busses/i2c-i801.rst b/Documentation/i2c/busses/i2c-i801.rst
index cad59170b2ad..ab9e850e8fe0 100644
--- a/Documentation/i2c/busses/i2c-i801.rst
+++ b/Documentation/i2c/busses/i2c-i801.rst
@@ -46,6 +46,7 @@ Supported adapters:
* Intel Emmitsburg (PCH)
* Intel Alder Lake (PCH)
* Intel Raptor Lake (PCH)
+ * Intel Meteor Lake (SOC)
Datasheets: Publicly available at the Intel website
diff --git a/Documentation/i2c/busses/i2c-piix4.rst b/Documentation/i2c/busses/i2c-piix4.rst
index cc9000259223..07fe6f6f4b18 100644
--- a/Documentation/i2c/busses/i2c-piix4.rst
+++ b/Documentation/i2c/busses/i2c-piix4.rst
@@ -64,7 +64,7 @@ correct address for this module, you could get in big trouble (read:
crashes, data corruption, etc.). Try this only as a last resort (try BIOS
updates first, for example), and backup first! An even more dangerous
option is 'force_addr=<IOPORT>'. This will not only enable the PIIX4 like
-'force' foes, but it will also set a new base I/O port address. The SMBus
+'force' does, but it will also set a new base I/O port address. The SMBus
parts of the PIIX4 needs a range of 8 of these addresses to function
correctly. If these addresses are already reserved by some other device,
you will get into big trouble! DON'T USE THIS IF YOU ARE NOT VERY SURE
@@ -86,15 +86,15 @@ If you own Force CPCI735 motherboard or other OSB4 based systems you may need
to change the SMBus Interrupt Select register so the SMBus controller uses
the SMI mode.
-1) Use lspci command and locate the PCI device with the SMBus controller:
+1) Use ``lspci`` command and locate the PCI device with the SMBus controller:
00:0f.0 ISA bridge: ServerWorks OSB4 South Bridge (rev 4f)
The line may vary for different chipsets. Please consult the driver source
- for all possible PCI ids (and lspci -n to match them). Lets assume the
+ for all possible PCI ids (and ``lspci -n`` to match them). Let's assume the
device is located at 00:0f.0.
2) Now you just need to change the value in 0xD2 register. Get it first with
- command: lspci -xxx -s 00:0f.0
+ command: ``lspci -xxx -s 00:0f.0``
If the value is 0x3 then you need to change it to 0x1:
- setpci -s 00:0f.0 d2.b=1
+ ``setpci -s 00:0f.0 d2.b=1``
Please note that you don't need to do that in all cases, just when the SMBus is
not working properly.
@@ -109,6 +109,3 @@ which can easily get corrupted due to a state machine bug. These are mostly
Thinkpad laptops, but desktop systems may also be affected. We have no list
of all affected systems, so the only safe solution was to prevent access to
the SMBus on all IBM systems (detected using DMI data.)
-
-For additional information, read:
-http://www.lm-sensors.org/browser/lm-sensors/trunk/README
diff --git a/Documentation/i2c/dev-interface.rst b/Documentation/i2c/dev-interface.rst
index 73ad34849f99..c277a8e1202b 100644
--- a/Documentation/i2c/dev-interface.rst
+++ b/Documentation/i2c/dev-interface.rst
@@ -148,7 +148,7 @@ You can do plain I2C transactions by using read(2) and write(2) calls.
You do not need to pass the address byte; instead, set it through
ioctl I2C_SLAVE before you try to access the device.
-You can do SMBus level transactions (see documentation file smbus-protocol
+You can do SMBus level transactions (see documentation file smbus-protocol.rst
for details) through the following functions::
__s32 i2c_smbus_write_quick(int file, __u8 value);
diff --git a/Documentation/i2c/i2c-protocol.rst b/Documentation/i2c/i2c-protocol.rst
index b2092f8f815d..df0febfe6410 100644
--- a/Documentation/i2c/i2c-protocol.rst
+++ b/Documentation/i2c/i2c-protocol.rst
@@ -2,7 +2,8 @@
The I2C Protocol
================
-This document describes the I2C protocol. Or will, when it is finished :-)
+This document is an overview of the basic I2C transactions and the kernel
+APIs to perform them.
Key to symbols
==============
@@ -12,13 +13,9 @@ S Start condition
P Stop condition
Rd/Wr (1 bit) Read/Write bit. Rd equals 1, Wr equals 0.
A, NA (1 bit) Acknowledge (ACK) and Not Acknowledge (NACK) bit
-Addr (7 bits) I2C 7 bit address. Note that this can be expanded as usual to
+Addr (7 bits) I2C 7 bit address. Note that this can be expanded to
get a 10 bit I2C address.
-Comm (8 bits) Command byte, a data byte which often selects a register on
- the device.
-Data (8 bits) A plain data byte. Sometimes, I write DataLow, DataHigh
- for 16 bit data.
-Count (8 bits) A data byte containing the length of a block operation.
+Data (8 bits) A plain data byte.
[..] Data sent by I2C device, as opposed to data sent by the
host adapter.
diff --git a/Documentation/i2c/i2c-sysfs.rst b/Documentation/i2c/i2c-sysfs.rst
index 6b68b95cd427..78c54c658fa1 100644
--- a/Documentation/i2c/i2c-sysfs.rst
+++ b/Documentation/i2c/i2c-sysfs.rst
@@ -51,11 +51,10 @@ Google Pixel 3 phone for example::
``i2c-2`` is an I2C bus whose number is 2, and ``2-0049`` is an I2C device
on bus 2 address 0x49 bound with a kernel driver.
-Terminologies
-=============
+Terminology
+===========
-First, let us define a couple of terminologies to avoid confusions in the later
-sections.
+First, let us define some terms to avoid confusion in later sections.
(Physical) I2C Bus Controller
-----------------------------
@@ -100,9 +99,7 @@ Caveat
This may be a confusing part for people who only know about the physical I2C
design of a board. It is actually possible to rename the I2C bus physical number
to a different number in logical I2C bus level in Device Tree Source (DTS) under
-section ``aliases``. See
-`arch/arm/boot/dts/nuvoton-npcm730-gsj.dts
-<../../arch/arm/boot/dts/nuvoton-npcm730-gsj.dts>`_
+section ``aliases``. See ``arch/arm/boot/dts/nuvoton-npcm730-gsj.dts``
for an example of DTS file.
Best Practice: **(To kernel software developers)** It is better to keep the I2C
@@ -117,7 +114,7 @@ Walk through Logical I2C Bus
For the following content, we will use a more complex I2C topology as an
example. Here is a brief graph for the I2C topology. If you do not understand
-this graph at the first glance, do not be afraid to continue reading this doc
+this graph at first glance, do not be afraid to continue reading this doc
and review it when you finish reading.
::
@@ -290,8 +287,7 @@ MUX channel 0, and all the way to ``i2c-19`` for the MUX channel 3.
The kernel software developer is able to pin the fanout MUX channels to a static
logical I2C bus number in the DTS. This doc will not go through the details on
how to implement this in DTS, but we can see an example in:
-`arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts
-<../../arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts>`_
+``arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts``
In the above example, there is an 8-channel I2C MUX at address 0x70 on physical
I2C bus 2. The channel 2 of the MUX is defined as ``imux18`` in DTS,
@@ -383,13 +379,9 @@ Sysfs for the I2C sensor device::
For more info on the Hwmon Sysfs, refer to the doc:
-`Naming and data format standards for sysfs files
-<../hwmon/sysfs-interface.rst>`_
+../hwmon/sysfs-interface.rst
Instantiate I2C Devices in I2C Sysfs
------------------------------------
-Refer to the doc:
-
-`How to instantiate I2C devices, Method 4: Instantiate from user-space
-<instantiating-devices.rst#method-4-instantiate-from-user-space>`_
+Refer to section "Method 4: Instantiate from user-space" of instantiating-devices.rst
diff --git a/Documentation/i2c/i2c-topology.rst b/Documentation/i2c/i2c-topology.rst
index 7cb53819778e..48fce0f7491b 100644
--- a/Documentation/i2c/i2c-topology.rst
+++ b/Documentation/i2c/i2c-topology.rst
@@ -5,6 +5,8 @@ I2C muxes and complex topologies
There are a couple of reasons for building more complex I2C topologies
than a straight-forward I2C bus with one adapter and one or more devices.
+Some example use cases are:
+
1. A mux may be needed on the bus to prevent address collisions.
2. The bus may be accessible from some external bus master, and arbitration
@@ -14,10 +16,10 @@ than a straight-forward I2C bus with one adapter and one or more devices.
from the I2C bus, at least most of the time, and sits behind a gate
that has to be operated before the device can be accessed.
-Etc
-===
+Several types of hardware components such as I2C muxes, I2C gates and I2C
+arbitrators allow to handle such needs.
-These constructs are represented as I2C adapter trees by Linux, where
+These components are represented as I2C adapter trees by Linux, where
each adapter has a parent adapter (except the root adapter) and zero or
more child adapters. The root adapter is the actual adapter that issues
I2C transfers, and all adapters with a parent are part of an "i2c-mux"
@@ -35,46 +37,7 @@ Locking
=======
There are two variants of locking available to I2C muxes, they can be
-mux-locked or parent-locked muxes. As is evident from below, it can be
-useful to know if a mux is mux-locked or if it is parent-locked. The
-following list was correct at the time of writing:
-
-In drivers/i2c/muxes/:
-
-====================== =============================================
-i2c-arb-gpio-challenge Parent-locked
-i2c-mux-gpio Normally parent-locked, mux-locked iff
- all involved gpio pins are controlled by the
- same I2C root adapter that they mux.
-i2c-mux-gpmux Normally parent-locked, mux-locked iff
- specified in device-tree.
-i2c-mux-ltc4306 Mux-locked
-i2c-mux-mlxcpld Parent-locked
-i2c-mux-pca9541 Parent-locked
-i2c-mux-pca954x Parent-locked
-i2c-mux-pinctrl Normally parent-locked, mux-locked iff
- all involved pinctrl devices are controlled
- by the same I2C root adapter that they mux.
-i2c-mux-reg Parent-locked
-====================== =============================================
-
-In drivers/iio/:
-
-====================== =============================================
-gyro/mpu3050 Mux-locked
-imu/inv_mpu6050/ Mux-locked
-====================== =============================================
-
-In drivers/media/:
-
-======================= =============================================
-dvb-frontends/lgdt3306a Mux-locked
-dvb-frontends/m88ds3103 Parent-locked
-dvb-frontends/rtl2830 Parent-locked
-dvb-frontends/rtl2832 Mux-locked
-dvb-frontends/si2168 Mux-locked
-usb/cx231xx/ Parent-locked
-======================= =============================================
+mux-locked or parent-locked muxes.
Mux-locked muxes
@@ -89,40 +52,8 @@ full transaction, unrelated I2C transfers may interleave the different
stages of the transaction. This has the benefit that the mux driver
may be easier and cleaner to implement, but it has some caveats.
-==== =====================================================================
-ML1. If you build a topology with a mux-locked mux being the parent
- of a parent-locked mux, this might break the expectation from the
- parent-locked mux that the root adapter is locked during the
- transaction.
-
-ML2. It is not safe to build arbitrary topologies with two (or more)
- mux-locked muxes that are not siblings, when there are address
- collisions between the devices on the child adapters of these
- non-sibling muxes.
-
- I.e. the select-transfer-deselect transaction targeting e.g. device
- address 0x42 behind mux-one may be interleaved with a similar
- operation targeting device address 0x42 behind mux-two. The
- intension with such a topology would in this hypothetical example
- be that mux-one and mux-two should not be selected simultaneously,
- but mux-locked muxes do not guarantee that in all topologies.
-
-ML3. A mux-locked mux cannot be used by a driver for auto-closing
- gates/muxes, i.e. something that closes automatically after a given
- number (one, in most cases) of I2C transfers. Unrelated I2C transfers
- may creep in and close prematurely.
-
-ML4. If any non-I2C operation in the mux driver changes the I2C mux state,
- the driver has to lock the root adapter during that operation.
- Otherwise garbage may appear on the bus as seen from devices
- behind the mux, when an unrelated I2C transfer is in flight during
- the non-I2C mux-changing operation.
-==== =====================================================================
-
-
Mux-locked Example
-------------------
-
+~~~~~~~~~~~~~~~~~~
::
@@ -153,6 +84,43 @@ This means that accesses to D2 are lockout out for the full duration
of the entire operation. But accesses to D3 are possibly interleaved
at any point.
+Mux-locked caveats
+~~~~~~~~~~~~~~~~~~
+
+When using a mux-locked mux, be aware of the following restrictions:
+
+[ML1]
+ If you build a topology with a mux-locked mux being the parent
+ of a parent-locked mux, this might break the expectation from the
+ parent-locked mux that the root adapter is locked during the
+ transaction.
+
+[ML2]
+ It is not safe to build arbitrary topologies with two (or more)
+ mux-locked muxes that are not siblings, when there are address
+ collisions between the devices on the child adapters of these
+ non-sibling muxes.
+
+ I.e. the select-transfer-deselect transaction targeting e.g. device
+ address 0x42 behind mux-one may be interleaved with a similar
+ operation targeting device address 0x42 behind mux-two. The
+ intent with such a topology would in this hypothetical example
+ be that mux-one and mux-two should not be selected simultaneously,
+ but mux-locked muxes do not guarantee that in all topologies.
+
+[ML3]
+ A mux-locked mux cannot be used by a driver for auto-closing
+ gates/muxes, i.e. something that closes automatically after a given
+ number (one, in most cases) of I2C transfers. Unrelated I2C transfers
+ may creep in and close prematurely.
+
+[ML4]
+ If any non-I2C operation in the mux driver changes the I2C mux state,
+ the driver has to lock the root adapter during that operation.
+ Otherwise garbage may appear on the bus as seen from devices
+ behind the mux, when an unrelated I2C transfer is in flight during
+ the non-I2C mux-changing operation.
+
Parent-locked muxes
-------------------
@@ -161,28 +129,10 @@ Parent-locked muxes lock the parent adapter during the full select-
transfer-deselect transaction. The implication is that the mux driver
has to ensure that any and all I2C transfers through that parent
adapter during the transaction are unlocked I2C transfers (using e.g.
-__i2c_transfer), or a deadlock will follow. There are a couple of
-caveats.
-
-==== ====================================================================
-PL1. If you build a topology with a parent-locked mux being the child
- of another mux, this might break a possible assumption from the
- child mux that the root adapter is unused between its select op
- and the actual transfer (e.g. if the child mux is auto-closing
- and the parent mux issues I2C transfers as part of its select).
- This is especially the case if the parent mux is mux-locked, but
- it may also happen if the parent mux is parent-locked.
-
-PL2. If select/deselect calls out to other subsystems such as gpio,
- pinctrl, regmap or iio, it is essential that any I2C transfers
- caused by these subsystems are unlocked. This can be convoluted to
- accomplish, maybe even impossible if an acceptably clean solution
- is sought.
-==== ====================================================================
-
+__i2c_transfer), or a deadlock will follow.
Parent-locked Example
----------------------
+~~~~~~~~~~~~~~~~~~~~~
::
@@ -212,10 +162,30 @@ When there is an access to D1, this happens:
9. M1 unlocks its parent adapter.
10. M1 unlocks muxes on its parent.
-
This means that accesses to both D2 and D3 are locked out for the full
duration of the entire operation.
+Parent-locked Caveats
+~~~~~~~~~~~~~~~~~~~~~
+
+When using a parent-locked mux, be aware of the following restrictions:
+
+[PL1]
+ If you build a topology with a parent-locked mux being the child
+ of another mux, this might break a possible assumption from the
+ child mux that the root adapter is unused between its select op
+ and the actual transfer (e.g. if the child mux is auto-closing
+ and the parent mux issues I2C transfers as part of its select).
+ This is especially the case if the parent mux is mux-locked, but
+ it may also happen if the parent mux is parent-locked.
+
+[PL2]
+ If select/deselect calls out to other subsystems such as gpio,
+ pinctrl, regmap or iio, it is essential that any I2C transfers
+ caused by these subsystems are unlocked. This can be convoluted to
+ accomplish, maybe even impossible if an acceptably clean solution
+ is sought.
+
Complex Examples
================
@@ -261,8 +231,10 @@ This is a good topology::
When device D1 is accessed, accesses to D2 are locked out for the
full duration of the operation (muxes on the top child adapter of M1
are locked). But accesses to D3 and D4 are possibly interleaved at
-any point. Accesses to D3 locks out D1 and D2, but accesses to D4
-are still possibly interleaved.
+any point.
+
+Accesses to D3 locks out D1 and D2, but accesses to D4 are still possibly
+interleaved.
Mux-locked mux as parent of parent-locked mux
@@ -394,3 +366,47 @@ This is a good topology::
When D1 or D2 are accessed, accesses to D3 and D4 are locked out while
accesses to D5 may interleave. When D3 or D4 are accessed, accesses to
all other devices are locked out.
+
+
+Mux type of existing device drivers
+===================================
+
+Whether a device is mux-locked or parent-locked depends on its
+implementation. The following list was correct at the time of writing:
+
+In drivers/i2c/muxes/:
+
+====================== =============================================
+i2c-arb-gpio-challenge Parent-locked
+i2c-mux-gpio Normally parent-locked, mux-locked iff
+ all involved gpio pins are controlled by the
+ same I2C root adapter that they mux.
+i2c-mux-gpmux Normally parent-locked, mux-locked iff
+ specified in device-tree.
+i2c-mux-ltc4306 Mux-locked
+i2c-mux-mlxcpld Parent-locked
+i2c-mux-pca9541 Parent-locked
+i2c-mux-pca954x Parent-locked
+i2c-mux-pinctrl Normally parent-locked, mux-locked iff
+ all involved pinctrl devices are controlled
+ by the same I2C root adapter that they mux.
+i2c-mux-reg Parent-locked
+====================== =============================================
+
+In drivers/iio/:
+
+====================== =============================================
+gyro/mpu3050 Mux-locked
+imu/inv_mpu6050/ Mux-locked
+====================== =============================================
+
+In drivers/media/:
+
+======================= =============================================
+dvb-frontends/lgdt3306a Mux-locked
+dvb-frontends/m88ds3103 Parent-locked
+dvb-frontends/rtl2830 Parent-locked
+dvb-frontends/rtl2832 Mux-locked
+dvb-frontends/si2168 Mux-locked
+usb/cx231xx/ Parent-locked
+======================= =============================================
diff --git a/Documentation/i2c/instantiating-devices.rst b/Documentation/i2c/instantiating-devices.rst
index 890c9360ce19..3ea056a95812 100644
--- a/Documentation/i2c/instantiating-devices.rst
+++ b/Documentation/i2c/instantiating-devices.rst
@@ -31,7 +31,9 @@ Declare the I2C devices via devicetree
On platforms using devicetree, the declaration of I2C devices is done in
subnodes of the master controller.
-Example::
+Example:
+
+.. code-block:: dts
i2c1: i2c@400a0000 {
/* ... master properties skipped ... */
@@ -71,7 +73,9 @@ code. Instantiating I2C devices via board files is done with an array of
struct i2c_board_info which is registered by calling
i2c_register_board_info().
-Example (from omap2 h4)::
+Example (from omap2 h4):
+
+.. code-block:: c
static struct i2c_board_info h4_i2c_board_info[] __initdata = {
{
@@ -111,7 +115,9 @@ bus in advance, so the method 1 described above can't be used. Instead,
you can instantiate your I2C devices explicitly. This is done by filling
a struct i2c_board_info and calling i2c_new_client_device().
-Example (from the sfe4001 network driver)::
+Example (from the sfe4001 network driver):
+
+.. code-block:: c
static struct i2c_board_info sfe4001_hwmon_info = {
I2C_BOARD_INFO("max6647", 0x4e),
@@ -136,7 +142,9 @@ it may have different addresses from one board to the next (manufacturer
changing its design without notice). In this case, you can call
i2c_new_scanned_device() instead of i2c_new_client_device().
-Example (from the nxp OHCI driver)::
+Example (from the nxp OHCI driver):
+
+.. code-block:: c
static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
diff --git a/Documentation/i2c/slave-interface.rst b/Documentation/i2c/slave-interface.rst
index 82ea3e1d6fe4..3f0d320bc80a 100644
--- a/Documentation/i2c/slave-interface.rst
+++ b/Documentation/i2c/slave-interface.rst
@@ -32,9 +32,9 @@ User manual
===========
I2C slave backends behave like standard I2C clients. So, you can instantiate
-them as described in the document 'instantiating-devices'. The only difference
-is that i2c slave backends have their own address space. So, you have to add
-0x1000 to the address you would originally request. An example for
+them as described in the document instantiating-devices.rst. The only
+difference is that i2c slave backends have their own address space. So, you
+have to add 0x1000 to the address you would originally request. An example for
instantiating the slave-eeprom driver from userspace at the 7 bit address 0x64
on bus 1::
@@ -72,12 +72,15 @@ Event types:
'val': unused
- 'ret': always 0
+ 'ret': 0 if the backend is ready, otherwise some errno
Another I2C master wants to write data to us. This event should be sent once
our own address and the write bit was detected. The data did not arrive yet, so
-there is nothing to process or return. Wakeup or initialization probably needs
-to be done, though.
+there is nothing to process or return. After returning, the bus driver must
+always ack the address phase. If 'ret' is zero, backend initialization or
+wakeup is done and further data may be received. If 'ret' is an errno, the bus
+driver should nack all incoming bytes until the next stop condition to enforce
+a retry of the transmission.
* I2C_SLAVE_READ_REQUESTED (mandatory)
diff --git a/Documentation/i2c/smbus-protocol.rst b/Documentation/i2c/smbus-protocol.rst
index 00d8e17d0aca..4942c4cad4ad 100644
--- a/Documentation/i2c/smbus-protocol.rst
+++ b/Documentation/i2c/smbus-protocol.rst
@@ -41,12 +41,12 @@ Sr Repeated start condition, used to switch from write to
P Stop condition
Rd/Wr (1 bit) Read/Write bit. Rd equals 1, Wr equals 0.
A, NA (1 bit) Acknowledge (ACK) and Not Acknowledge (NACK) bit
-Addr (7 bits) I2C 7 bit address. Note that this can be expanded as usual to
+Addr (7 bits) I2C 7 bit address. Note that this can be expanded to
get a 10 bit I2C address.
Comm (8 bits) Command byte, a data byte which often selects a register on
the device.
-Data (8 bits) A plain data byte. Sometimes, I write DataLow, DataHigh
- for 16 bit data.
+Data (8 bits) A plain data byte. DataLow and DataHigh represent the low and
+ high byte of a 16 bit word.
Count (8 bits) A data byte containing the length of a block operation.
[..] Data sent by I2C device, as opposed to data sent by the host
diff --git a/Documentation/i2c/writing-clients.rst b/Documentation/i2c/writing-clients.rst
index e3b126cf4a3b..b7d3ae7458f8 100644
--- a/Documentation/i2c/writing-clients.rst
+++ b/Documentation/i2c/writing-clients.rst
@@ -156,7 +156,7 @@ those devices, and a remove() method to unbind.
::
static int foo_probe(struct i2c_client *client);
- static int foo_remove(struct i2c_client *client);
+ static void foo_remove(struct i2c_client *client);
Remember that the i2c_driver does not create those client handles. The
handle may be used during foo_probe(). If foo_probe() reports success
@@ -364,7 +364,7 @@ stop condition is issued between transaction. The i2c_msg structure
contains for each message the client address, the number of bytes of the
message and the message data itself.
-You can read the file ``i2c-protocol`` for more information about the
+You can read the file i2c-protocol.rst for more information about the
actual I2C protocol.
@@ -414,7 +414,7 @@ transactions return 0 on success; the 'read' transactions return the read
value, except for block transactions, which return the number of values
read. The block buffers need not be longer than 32 bytes.
-You can read the file ``smbus-protocol`` for more information about the
+You can read the file smbus-protocol.rst for more information about the
actual SMBus protocol.
diff --git a/Documentation/iio/bno055.rst b/Documentation/iio/bno055.rst
new file mode 100644
index 000000000000..9a489a79d8f5
--- /dev/null
+++ b/Documentation/iio/bno055.rst
@@ -0,0 +1,51 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============================
+BNO055 driver
+==============================
+
+1. Overview
+===========
+
+This driver supports Bosch BNO055 IMUs (on both serial and I2C busses).
+
+Accelerometer, magnetometer and gyroscope measures are always provided.
+When "fusion_enable" sysfs attribute is set to 1, orientation (both Euler
+angles and quaternion), linear velocity and gravity vector are also
+provided, but some sensor settings (e.g. low pass filtering and range)
+became locked (the IMU firmware controls them).
+
+This driver supports also IIO buffers.
+
+2. Calibration
+==============
+
+The IMU continuously performs an autocalibration procedure if (and only if)
+operating in fusion mode. The magnetometer autocalibration can however be
+disabled writing 0 in the sysfs in_magn_calibration_fast_enable attribute.
+
+The driver provides access to autocalibration flags (i.e. you can known if
+the IMU has successfully autocalibrated) and to the calibration data blob.
+
+The user can save this blob in a firmware file (i.e. in /lib/firmware) that
+the driver looks for at probe time. If found, then the IMU is initialized
+with this calibration data. This saves the user from performing the
+calibration procedure every time (which consist of moving the IMU in
+various way).
+
+The driver looks for calibration data file using two different names: first
+a file whose name is suffixed with the IMU unique ID (exposed in sysfs as
+serial_number) is searched for; this is useful when there is more than one
+IMU instance. If this file is not found, then a "generic" calibration file
+is searched for (which can be used when only one IMU is present, without
+struggling with fancy names, that change on each device).
+
+Valid calibration file names would be e.g.
+ bno055-caldata-0e7c26a33541515120204a35342b04ff.dat
+ bno055-caldata.dat
+
+In non-fusion mode the IIO 'offset' attributes provide access to the
+offsets from calibration data (if any), so that the user can apply them to
+the accel, angvel and magn IIO attributes. In fusion mode they are not
+needed (the IMU firmware internally applies those corrections) and they
+read as zero.
diff --git a/Documentation/iio/index.rst b/Documentation/iio/index.rst
index 58b7a4ebac51..1b7292c58cd0 100644
--- a/Documentation/iio/index.rst
+++ b/Documentation/iio/index.rst
@@ -10,3 +10,5 @@ Industrial I/O
iio_configfs
ep93xx_adc
+
+ bno055
diff --git a/Documentation/index.rst b/Documentation/index.rst
index 67036a05b771..bf6aa681c960 100644
--- a/Documentation/index.rst
+++ b/Documentation/index.rst
@@ -1,11 +1,5 @@
.. SPDX-License-Identifier: GPL-2.0
-
-.. The Linux Kernel documentation master file, created by
- sphinx-quickstart on Fri Feb 12 13:51:46 2016.
- You can adapt this file completely to your liking, but it should at least
- contain the root `toctree` directive.
-
.. _linux_doc:
The Linux Kernel documentation
@@ -18,133 +12,85 @@ documents into a coherent whole. Please note that improvements to the
documentation are welcome; join the linux-doc list at vger.kernel.org if
you want to help out.
-Licensing documentation
------------------------
+Working with the development community
+--------------------------------------
-The following describes the license of the Linux kernel source code
-(GPLv2), how to properly mark the license of individual files in the source
-tree, as well as links to the full license text.
-
-* :ref:`kernel_licensing`
-
-User-oriented documentation
----------------------------
-
-The following manuals are written for *users* of the kernel — those who are
-trying to get it to work optimally on a given system.
+The essential guides for interacting with the kernel's development
+community and getting your work upstream.
.. toctree::
- :maxdepth: 2
-
- admin-guide/index
- kbuild/index
-
-Firmware-related documentation
-------------------------------
-The following holds information on the kernel's expectations regarding the
-platform firmwares.
+ :maxdepth: 1
-.. toctree::
- :maxdepth: 2
+ process/development-process
+ process/submitting-patches
+ Code of conduct <process/code-of-conduct>
+ maintainer/index
+ All development-process docs <process/index>
- firmware-guide/index
- devicetree/index
-Application-developer documentation
------------------------------------
+Internal API manuals
+--------------------
-The user-space API manual gathers together documents describing aspects of
-the kernel interface as seen by application developers.
+Manuals for use by developers working to interface with the rest of the
+kernel.
.. toctree::
- :maxdepth: 2
-
- userspace-api/index
+ :maxdepth: 1
+ core-api/index
+ driver-api/index
+ subsystem-apis
+ Locking in the kernel <locking/index>
-Introduction to kernel development
-----------------------------------
+Development tools and processes
+-------------------------------
-These manuals contain overall information about how to develop the kernel.
-The kernel community is quite large, with thousands of developers
-contributing over the course of a year. As with any large community,
-knowing how things are done will make the process of getting your changes
-merged much easier.
+Various other manuals with useful information for all kernel developers.
.. toctree::
- :maxdepth: 2
+ :maxdepth: 1
- process/index
- dev-tools/index
+ process/license-rules
doc-guide/index
+ dev-tools/index
+ dev-tools/testing-overview
kernel-hacking/index
trace/index
- maintainer/index
fault-injection/index
livepatch/index
+ rust/index
-Kernel API documentation
-------------------------
+User-oriented documentation
+---------------------------
-These books get into the details of how specific kernel subsystems work
-from the point of view of a kernel developer. Much of the information here
-is taken directly from the kernel source, with supplemental material added
-as needed (or at least as we managed to add it — probably *not* all that is
-needed).
+The following manuals are written for *users* of the kernel — those who are
+trying to get it to work optimally on a given system and application
+developers seeking information on the kernel's user-space APIs.
.. toctree::
- :maxdepth: 2
+ :maxdepth: 1
- driver-api/index
- core-api/index
- locking/index
- accounting/index
- block/index
- cdrom/index
- cpu-freq/index
- fb/index
- fpga/index
- hid/index
- i2c/index
- iio/index
- isdn/index
- infiniband/index
- leds/index
- netlabel/index
- networking/index
- pcmcia/index
- power/index
- target/index
- timers/index
- spi/index
- w1/index
- watchdog/index
- virt/index
- input/index
- hwmon/index
- gpu/index
- security/index
- sound/index
- crypto/index
- filesystems/index
- vm/index
- bpf/index
- usb/index
- PCI/index
- scsi/index
- misc-devices/index
- scheduler/index
- mhi/index
- peci/index
-
-Architecture-agnostic documentation
------------------------------------
+ admin-guide/index
+ The kernel build system <kbuild/index>
+ admin-guide/reporting-issues.rst
+ User-space tools <tools/index>
+ userspace-api/index
+
+See also: the `Linux man pages <https://www.kernel.org/doc/man-pages/>`_,
+which are kept separately from the kernel's own documentation.
+
+Firmware-related documentation
+------------------------------
+The following holds information on the kernel's expectations regarding the
+platform firmwares.
.. toctree::
- :maxdepth: 2
+ :maxdepth: 1
+
+ firmware-guide/index
+ devicetree/index
- asm-annotations
Architecture-specific documentation
-----------------------------------
@@ -163,9 +109,8 @@ of the documentation body, or may require some adjustments and/or conversion
to ReStructured Text format, or are simply too old.
.. toctree::
- :maxdepth: 2
+ :maxdepth: 1
- tools/index
staging/index
diff --git a/Documentation/input/joydev/joystick.rst b/Documentation/input/joydev/joystick.rst
index f615906a0821..6d721396717a 100644
--- a/Documentation/input/joydev/joystick.rst
+++ b/Documentation/input/joydev/joystick.rst
@@ -517,6 +517,7 @@ All I-Force devices are supported by the iforce module. This includes:
* AVB Mag Turbo Force
* AVB Top Shot Pegasus
* AVB Top Shot Force Feedback Racing Wheel
+* Boeder Force Feedback Wheel
* Logitech WingMan Force
* Logitech WingMan Force Wheel
* Guillemot Race Leader Force Feedback
diff --git a/Documentation/kbuild/gcc-plugins.rst b/Documentation/kbuild/gcc-plugins.rst
index 0ba76719f1b9..c578c6ba3eb6 100644
--- a/Documentation/kbuild/gcc-plugins.rst
+++ b/Documentation/kbuild/gcc-plugins.rst
@@ -90,7 +90,11 @@ e.g., on Ubuntu for gcc-10::
Or on Fedora::
- dnf install gcc-plugin-devel
+ dnf install gcc-plugin-devel libmpc-devel
+
+Or on Fedora when using cross-compilers that include plugins::
+
+ dnf install libmpc-devel
Enable the GCC plugin infrastructure and some plugin(s) you want to use
in the kernel config::
@@ -99,6 +103,19 @@ in the kernel config::
CONFIG_GCC_PLUGIN_LATENT_ENTROPY=y
...
+Run gcc (native or cross-compiler) to ensure plugin headers are detected::
+
+ gcc -print-file-name=plugin
+ CROSS_COMPILE=arm-linux-gnu- ${CROSS_COMPILE}gcc -print-file-name=plugin
+
+The word "plugin" means they are not detected::
+
+ plugin
+
+A full path means they are detected::
+
+ /usr/lib/gcc/x86_64-redhat-linux/12/plugin
+
To compile the minimum tool set including the plugin(s)::
make scripts
diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst
index ef19b9c13523..08f575e6236c 100644
--- a/Documentation/kbuild/kbuild.rst
+++ b/Documentation/kbuild/kbuild.rst
@@ -48,6 +48,10 @@ KCFLAGS
-------
Additional options to the C compiler (for built-in and modules).
+KRUSTFLAGS
+----------
+Additional options to the Rust compiler (for built-in and modules).
+
CFLAGS_KERNEL
-------------
Additional options for $(CC) when used to compile
@@ -57,6 +61,15 @@ CFLAGS_MODULE
-------------
Additional module specific options to use for $(CC).
+RUSTFLAGS_KERNEL
+----------------
+Additional options for $(RUSTC) when used to compile
+code that is compiled as built-in.
+
+RUSTFLAGS_MODULE
+----------------
+Additional module specific options to use for $(RUSTC).
+
LDFLAGS_MODULE
--------------
Additional options used for $(LD) when linking modules.
@@ -69,6 +82,10 @@ HOSTCXXFLAGS
------------
Additional flags to be passed to $(HOSTCXX) when building host programs.
+HOSTRUSTFLAGS
+-------------
+Additional flags to be passed to $(HOSTRUSTC) when building host programs.
+
HOSTLDFLAGS
-----------
Additional flags to be passed when linking host programs.
diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst
index a7173843a294..858ed5d80def 100644
--- a/Documentation/kbuild/kconfig-language.rst
+++ b/Documentation/kbuild/kconfig-language.rst
@@ -525,8 +525,8 @@ followed by a test macro::
If you need to expose a compiler capability to makefiles and/or C source files,
`CC_HAS_` is the recommended prefix for the config option::
- config CC_HAS_ASM_GOTO
- def_bool $(success,$(srctree)/scripts/gcc-goto.sh $(CC))
+ config CC_HAS_FOO
+ def_bool $(success,$(srctree)/scripts/cc-check-foo.sh $(CC))
Build as module only
~~~~~~~~~~~~~~~~~~~~
@@ -672,7 +672,7 @@ Future kconfig work
Work on kconfig is welcomed on both areas of clarifying semantics and on
evaluating the use of a full SAT solver for it. A full SAT solver can be
desirable to enable more complex dependency mappings and / or queries,
-for instance on possible use case for a SAT solver could be that of handling
+for instance one possible use case for a SAT solver could be that of handling
the current known recursive dependency issues. It is not known if this would
address such issues but such evaluation is desirable. If support for a full SAT
solver proves too complex or that it cannot address recursive dependency issues
diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
index 11a296e52d68..6b7368d1f516 100644
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -29,8 +29,9 @@ This document describes the Linux kernel Makefiles.
--- 4.1 Simple Host Program
--- 4.2 Composite Host Programs
--- 4.3 Using C++ for host programs
- --- 4.4 Controlling compiler options for host programs
- --- 4.5 When host programs are actually built
+ --- 4.4 Using Rust for host programs
+ --- 4.5 Controlling compiler options for host programs
+ --- 4.6 When host programs are actually built
=== 5 Userspace Program support
--- 5.1 Simple Userspace Program
@@ -340,19 +341,7 @@ more details, with real examples.
Examples are:
- 1) head objects
-
- Some objects must be placed at the head of vmlinux. They are
- directly linked to vmlinux without going through built-in.a
- A typical use-case is an object that contains the entry point.
-
- arch/$(SRCARCH)/Makefile should specify such objects as head-y.
-
- Discussion:
- Given that we can control the section order in the linker script,
- why do we need head-y?
-
- 2) vmlinux linker script
+ 1) vmlinux linker script
The linker script for vmlinux is located at
arch/$(SRCARCH)/kernel/vmlinux.lds
@@ -360,10 +349,6 @@ more details, with real examples.
Example::
# arch/x86/kernel/Makefile
- extra-y := head_$(BITS).o
- extra-y += head$(BITS).o
- extra-y += ebda.o
- extra-y += platform-quirks.o
extra-y += vmlinux.lds
$(extra-y) should only contain targets needed for vmlinux.
@@ -682,22 +667,27 @@ more details, with real examples.
In the above example, -Wno-unused-but-set-variable will be added to
KBUILD_CFLAGS only if gcc really accepts it.
- cc-ifversion
- cc-ifversion tests the version of $(CC) and equals the fourth parameter
- if version expression is true, or the fifth (if given) if the version
- expression is false.
+ gcc-min-version
+ gcc-min-version tests if the value of $(CONFIG_GCC_VERSION) is greater than
+ or equal to the provided value and evaluates to y if so.
+
+ Example::
+
+ cflags-$(call gcc-min-version, 70100) := -foo
+
+ In this example, cflags-y will be assigned the value -foo if $(CC) is gcc and
+ $(CONFIG_GCC_VERSION) is >= 7.1.
+
+ clang-min-version
+ clang-min-version tests if the value of $(CONFIG_CLANG_VERSION) is greater
+ than or equal to the provided value and evaluates to y if so.
Example::
- #fs/reiserfs/Makefile
- ccflags-y := $(call cc-ifversion, -lt, 0402, -O1)
+ cflags-$(call clang-min-version, 110000) := -foo
- In this example, ccflags-y will be assigned the value -O1 if the
- $(CC) version is less than 4.2.
- cc-ifversion takes all the shell operators:
- -eq, -ne, -lt, -le, -gt, and -ge
- The third parameter may be a text as in this example, but it may also
- be an expanded variable or a macro.
+ In this example, cflags-y will be assigned the value -foo if $(CC) is clang
+ and $(CONFIG_CLANG_VERSION) is >= 11.0.0.
cc-cross-prefix
cc-cross-prefix is used to check if there exists a $(CC) in path with
@@ -835,7 +825,24 @@ Both possibilities are described in the following.
qconf-cxxobjs := qconf.o
qconf-objs := check.o
-4.4 Controlling compiler options for host programs
+4.4 Using Rust for host programs
+--------------------------------
+
+ Kbuild offers support for host programs written in Rust. However,
+ since a Rust toolchain is not mandatory for kernel compilation,
+ it may only be used in scenarios where Rust is required to be
+ available (e.g. when ``CONFIG_RUST`` is enabled).
+
+ Example::
+
+ hostprogs := target
+ target-rust := y
+
+ Kbuild will compile ``target`` using ``target.rs`` as the crate root,
+ located in the same directory as the ``Makefile``. The crate may
+ consist of several source files (see ``samples/rust/hostprogs``).
+
+4.5 Controlling compiler options for host programs
--------------------------------------------------
When compiling host programs, it is possible to set specific flags.
@@ -867,7 +874,7 @@ Both possibilities are described in the following.
When linking qconf, it will be passed the extra option
"-L$(QTDIR)/lib".
-4.5 When host programs are actually built
+4.6 When host programs are actually built
-----------------------------------------
Kbuild will only build host-programs when they are referenced
@@ -1081,8 +1088,7 @@ When kbuild executes, the following steps are followed (roughly):
- The values of the above variables are expanded in arch/$(SRCARCH)/Makefile.
5) All object files are then linked and the resulting file vmlinux is
located at the root of the obj tree.
- The very first objects linked are listed in head-y, assigned by
- arch/$(SRCARCH)/Makefile.
+ The very first objects linked are listed in scripts/head-object-list.txt.
6) Finally, the architecture-specific part does any required post processing
and builds the final bootimage.
- This includes building boot records
@@ -1181,6 +1187,17 @@ When kbuild executes, the following steps are followed (roughly):
The first example utilises the trick that a config option expands
to 'y' when selected.
+ KBUILD_RUSTFLAGS
+ $(RUSTC) compiler flags
+
+ Default value - see top level Makefile
+ Append or modify as required per architecture.
+
+ Often, the KBUILD_RUSTFLAGS variable depends on the configuration.
+
+ Note that target specification file generation (for ``--target``)
+ is handled in ``scripts/generate_rust_target.rs``.
+
KBUILD_AFLAGS_KERNEL
Assembler options specific for built-in
@@ -1208,6 +1225,19 @@ When kbuild executes, the following steps are followed (roughly):
are used for $(CC).
From commandline CFLAGS_MODULE shall be used (see kbuild.rst).
+ KBUILD_RUSTFLAGS_KERNEL
+ $(RUSTC) options specific for built-in
+
+ $(KBUILD_RUSTFLAGS_KERNEL) contains extra Rust compiler flags used to
+ compile resident kernel code.
+
+ KBUILD_RUSTFLAGS_MODULE
+ Options for $(RUSTC) when building modules
+
+ $(KBUILD_RUSTFLAGS_MODULE) is used to add arch-specific options that
+ are used for $(RUSTC).
+ From commandline RUSTFLAGS_MODULE shall be used (see kbuild.rst).
+
KBUILD_LDFLAGS_MODULE
Options for $(LD) when linking modules
@@ -1230,6 +1260,9 @@ When kbuild executes, the following steps are followed (roughly):
All object files for vmlinux. They are linked to vmlinux in the same
order as listed in KBUILD_VMLINUX_OBJS.
+ The objects listed in scripts/head-object-list.txt are exceptions;
+ they are placed before the other objects.
+
KBUILD_VMLINUX_LIBS
All .a "lib" files for vmlinux. KBUILD_VMLINUX_OBJS and
@@ -1273,8 +1306,7 @@ When kbuild executes, the following steps are followed (roughly):
machinery is all architecture-independent.
- head-y, core-y, libs-y, drivers-y
- $(head-y) lists objects to be linked first in vmlinux.
+ core-y, libs-y, drivers-y
$(libs-y) lists directories where a lib.a archive can be located.
diff --git a/Documentation/kernel-hacking/hacking.rst b/Documentation/kernel-hacking/hacking.rst
index ebd9d90882ea..9a1f020c8449 100644
--- a/Documentation/kernel-hacking/hacking.rst
+++ b/Documentation/kernel-hacking/hacking.rst
@@ -755,8 +755,7 @@ make a neat patch, there's administrative work to be done:
it implies a more-than-passing commitment to some part of the code.
- Finally, don't forget to read
- ``Documentation/process/submitting-patches.rst`` and possibly
- ``Documentation/process/submitting-drivers.rst``.
+ ``Documentation/process/submitting-patches.rst``
Kernel Cantrips
===============
diff --git a/Documentation/locking/seqlock.rst b/Documentation/locking/seqlock.rst
index 64405e5da63e..bfda1a5fecad 100644
--- a/Documentation/locking/seqlock.rst
+++ b/Documentation/locking/seqlock.rst
@@ -39,7 +39,7 @@ as the writer can invalidate a pointer that the reader is following.
Sequence counters (``seqcount_t``)
==================================
-This is the the raw counting mechanism, which does not protect against
+This is the raw counting mechanism, which does not protect against
multiple writers. Write side critical sections must thus be serialized
by an external lock.
diff --git a/Documentation/loongarch/introduction.rst b/Documentation/loongarch/introduction.rst
index 216b3f390e80..6c9160c4e9be 100644
--- a/Documentation/loongarch/introduction.rst
+++ b/Documentation/loongarch/introduction.rst
@@ -221,7 +221,7 @@ I26 Opcode + I26L + I26H
=========== ==========================
Rd is the destination register operand, while Rj, Rk and Ra ("a" stands for
-"additional") are the source register operands. I8/I12/I16/I21/I26 are
+"additional") are the source register operands. I8/I12/I14/I16/I21/I26 are
immediate operands of respective width. The longer I21 and I26 are stored
in separate higher and lower parts in the instruction word, denoted by the "L"
and "H" suffixes.
diff --git a/Documentation/m68k/kernel-options.rst b/Documentation/m68k/kernel-options.rst
index cabd9419740d..2008a20b4329 100644
--- a/Documentation/m68k/kernel-options.rst
+++ b/Documentation/m68k/kernel-options.rst
@@ -367,8 +367,8 @@ activated by a "external:" sub-option.
4.1.2) inverse
--------------
-Invert the display. This affects both, text (consoles) and graphics
-(X) display. Usually, the background is chosen to be black. With this
+Invert the display. This affects only text consoles.
+Usually, the background is chosen to be black. With this
option, you can make the background white.
4.1.3) font
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index b12df9137e1c..06f80e3785c5 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -52,7 +52,7 @@ CONTENTS
- Varieties of memory barrier.
- What may not be assumed about memory barriers?
- - Data dependency barriers (historical).
+ - Address-dependency barriers (historical).
- Control dependencies.
- SMP barrier pairing.
- Examples of memory barrier sequences.
@@ -187,9 +187,9 @@ As a further example, consider this sequence of events:
B = 4; Q = P;
P = &B; D = *Q;
-There is an obvious data dependency here, as the value loaded into D depends on
-the address retrieved from P by CPU 2. At the end of the sequence, any of the
-following results are possible:
+There is an obvious address dependency here, as the value loaded into D depends
+on the address retrieved from P by CPU 2. At the end of the sequence, any of
+the following results are possible:
(Q == &A) and (D == 1)
(Q == &B) and (D == 2)
@@ -391,58 +391,62 @@ Memory barriers come in four basic varieties:
memory system as time progresses. All stores _before_ a write barrier
will occur _before_ all the stores after the write barrier.
- [!] Note that write barriers should normally be paired with read or data
- dependency barriers; see the "SMP barrier pairing" subsection.
+ [!] Note that write barriers should normally be paired with read or
+ address-dependency barriers; see the "SMP barrier pairing" subsection.
- (2) Data dependency barriers.
+ (2) Address-dependency barriers (historical).
- A data dependency barrier is a weaker form of read barrier. In the case
- where two loads are performed such that the second depends on the result
- of the first (eg: the first load retrieves the address to which the second
- load will be directed), a data dependency barrier would be required to
- make sure that the target of the second load is updated after the address
- obtained by the first load is accessed.
+ An address-dependency barrier is a weaker form of read barrier. In the
+ case where two loads are performed such that the second depends on the
+ result of the first (eg: the first load retrieves the address to which
+ the second load will be directed), an address-dependency barrier would
+ be required to make sure that the target of the second load is updated
+ after the address obtained by the first load is accessed.
- A data dependency barrier is a partial ordering on interdependent loads
- only; it is not required to have any effect on stores, independent loads
- or overlapping loads.
+ An address-dependency barrier is a partial ordering on interdependent
+ loads only; it is not required to have any effect on stores, independent
+ loads or overlapping loads.
As mentioned in (1), the other CPUs in the system can be viewed as
committing sequences of stores to the memory system that the CPU being
- considered can then perceive. A data dependency barrier issued by the CPU
- under consideration guarantees that for any load preceding it, if that
- load touches one of a sequence of stores from another CPU, then by the
- time the barrier completes, the effects of all the stores prior to that
- touched by the load will be perceptible to any loads issued after the data
- dependency barrier.
+ considered can then perceive. An address-dependency barrier issued by
+ the CPU under consideration guarantees that for any load preceding it,
+ if that load touches one of a sequence of stores from another CPU, then
+ by the time the barrier completes, the effects of all the stores prior to
+ that touched by the load will be perceptible to any loads issued after
+ the address-dependency barrier.
See the "Examples of memory barrier sequences" subsection for diagrams
showing the ordering constraints.
- [!] Note that the first load really has to have a _data_ dependency and
+ [!] Note that the first load really has to have an _address_ dependency and
not a control dependency. If the address for the second load is dependent
on the first load, but the dependency is through a conditional rather than
actually loading the address itself, then it's a _control_ dependency and
a full read barrier or better is required. See the "Control dependencies"
subsection for more information.
- [!] Note that data dependency barriers should normally be paired with
+ [!] Note that address-dependency barriers should normally be paired with
write barriers; see the "SMP barrier pairing" subsection.
+ [!] Kernel release v5.9 removed kernel APIs for explicit address-
+ dependency barriers. Nowadays, APIs for marking loads from shared
+ variables such as READ_ONCE() and rcu_dereference() provide implicit
+ address-dependency barriers.
(3) Read (or load) memory barriers.
- A read barrier is a data dependency barrier plus a guarantee that all the
- LOAD operations specified before the barrier will appear to happen before
- all the LOAD operations specified after the barrier with respect to the
- other components of the system.
+ A read barrier is an address-dependency barrier plus a guarantee that all
+ the LOAD operations specified before the barrier will appear to happen
+ before all the LOAD operations specified after the barrier with respect to
+ the other components of the system.
A read barrier is a partial ordering on loads only; it is not required to
have any effect on stores.
- Read memory barriers imply data dependency barriers, and so can substitute
- for them.
+ Read memory barriers imply address-dependency barriers, and so can
+ substitute for them.
[!] Note that read barriers should normally be paired with write barriers;
see the "SMP barrier pairing" subsection.
@@ -550,17 +554,21 @@ There are certain things that the Linux kernel memory barriers do not guarantee:
Documentation/core-api/dma-api.rst
-DATA DEPENDENCY BARRIERS (HISTORICAL)
--------------------------------------
+ADDRESS-DEPENDENCY BARRIERS (HISTORICAL)
+----------------------------------------
As of v4.15 of the Linux kernel, an smp_mb() was added to READ_ONCE() for
DEC Alpha, which means that about the only people who need to pay attention
to this section are those working on DEC Alpha architecture-specific code
and those working on READ_ONCE() itself. For those who need it, and for
those who are interested in the history, here is the story of
-data-dependency barriers.
+address-dependency barriers.
+
+[!] While address dependencies are observed in both load-to-load and
+load-to-store relations, address-dependency barriers are not necessary
+for load-to-store situations.
-The usage requirements of data dependency barriers are a little subtle, and
+The requirement of address-dependency barriers is a little subtle, and
it's not always obvious that they're needed. To illustrate, consider the
following sequence of events:
@@ -570,11 +578,14 @@ following sequence of events:
B = 4;
<write barrier>
WRITE_ONCE(P, &B);
- Q = READ_ONCE(P);
+ Q = READ_ONCE_OLD(P);
D = *Q;
-There's a clear data dependency here, and it would seem that by the end of the
-sequence, Q must be either &A or &B, and that:
+[!] READ_ONCE_OLD() corresponds to READ_ONCE() of pre-4.15 kernel, which
+doesn't imply an address-dependency barrier.
+
+There's a clear address dependency here, and it would seem that by the end of
+the sequence, Q must be either &A or &B, and that:
(Q == &A) implies (D == 1)
(Q == &B) implies (D == 4)
@@ -588,8 +599,8 @@ While this may seem like a failure of coherency or causality maintenance, it
isn't, and this behaviour can be observed on certain real CPUs (such as the DEC
Alpha).
-To deal with this, a data dependency barrier or better must be inserted
-between the address load and the data load:
+To deal with this, READ_ONCE() provides an implicit address-dependency barrier
+since kernel release v4.15:
CPU 1 CPU 2
=============== ===============
@@ -598,7 +609,7 @@ between the address load and the data load:
<write barrier>
WRITE_ONCE(P, &B);
Q = READ_ONCE(P);
- <data dependency barrier>
+ <implicit address-dependency barrier>
D = *Q;
This enforces the occurrence of one of the two implications, and prevents the
@@ -615,13 +626,13 @@ odd-numbered bank is idle, one can see the new value of the pointer P (&B),
but the old value of the variable B (2).
-A data-dependency barrier is not required to order dependent writes
-because the CPUs that the Linux kernel supports don't do writes
-until they are certain (1) that the write will actually happen, (2)
-of the location of the write, and (3) of the value to be written.
+An address-dependency barrier is not required to order dependent writes
+because the CPUs that the Linux kernel supports don't do writes until they
+are certain (1) that the write will actually happen, (2) of the location of
+the write, and (3) of the value to be written.
But please carefully read the "CONTROL DEPENDENCIES" section and the
-Documentation/RCU/rcu_dereference.rst file: The compiler can and does
-break dependencies in a great many highly creative ways.
+Documentation/RCU/rcu_dereference.rst file: The compiler can and does break
+dependencies in a great many highly creative ways.
CPU 1 CPU 2
=============== ===============
@@ -629,12 +640,12 @@ break dependencies in a great many highly creative ways.
B = 4;
<write barrier>
WRITE_ONCE(P, &B);
- Q = READ_ONCE(P);
+ Q = READ_ONCE_OLD(P);
WRITE_ONCE(*Q, 5);
-Therefore, no data-dependency barrier is required to order the read into
+Therefore, no address-dependency barrier is required to order the read into
Q with the store into *Q. In other words, this outcome is prohibited,
-even without a data-dependency barrier:
+even without an implicit address-dependency barrier of modern READ_ONCE():
(Q == &B) && (B == 4)
@@ -645,12 +656,12 @@ can be used to record rare error conditions and the like, and the CPUs'
naturally occurring ordering prevents such records from being lost.
-Note well that the ordering provided by a data dependency is local to
+Note well that the ordering provided by an address dependency is local to
the CPU containing it. See the section on "Multicopy atomicity" for
more information.
-The data dependency barrier is very important to the RCU system,
+The address-dependency barrier is very important to the RCU system,
for example. See rcu_assign_pointer() and rcu_dereference() in
include/linux/rcupdate.h. This permits the current target of an RCU'd
pointer to be replaced with a new modified target, without the replacement
@@ -667,20 +678,21 @@ not understand them. The purpose of this section is to help you prevent
the compiler's ignorance from breaking your code.
A load-load control dependency requires a full read memory barrier, not
-simply a data dependency barrier to make it work correctly. Consider the
-following bit of code:
+simply an (implicit) address-dependency barrier to make it work correctly.
+Consider the following bit of code:
q = READ_ONCE(a);
+ <implicit address-dependency barrier>
if (q) {
- <data dependency barrier> /* BUG: No data dependency!!! */
+ /* BUG: No address dependency!!! */
p = READ_ONCE(b);
}
-This will not have the desired effect because there is no actual data
+This will not have the desired effect because there is no actual address
dependency, but rather a control dependency that the CPU may short-circuit
by attempting to predict the outcome in advance, so that other CPUs see
-the load from b as having happened before the load from a. In such a
-case what's actually required is:
+the load from b as having happened before the load from a. In such a case
+what's actually required is:
q = READ_ONCE(a);
if (q) {
@@ -927,9 +939,9 @@ General barriers pair with each other, though they also pair with most
other types of barriers, albeit without multicopy atomicity. An acquire
barrier pairs with a release barrier, but both may also pair with other
barriers, including of course general barriers. A write barrier pairs
-with a data dependency barrier, a control dependency, an acquire barrier,
+with an address-dependency barrier, a control dependency, an acquire barrier,
a release barrier, a read barrier, or a general barrier. Similarly a
-read barrier, control dependency, or a data dependency barrier pairs
+read barrier, control dependency, or an address-dependency barrier pairs
with a write barrier, an acquire barrier, a release barrier, or a
general barrier:
@@ -948,7 +960,7 @@ Or:
a = 1;
<write barrier>
WRITE_ONCE(b, &a); x = READ_ONCE(b);
- <data dependency barrier>
+ <implicit address-dependency barrier>
y = *x;
Or even:
@@ -968,8 +980,8 @@ Basically, the read barrier always has to be there, even though it can be of
the "weaker" type.
[!] Note that the stores before the write barrier would normally be expected to
-match the loads after the read barrier or the data dependency barrier, and vice
-versa:
+match the loads after the read barrier or the address-dependency barrier, and
+vice versa:
CPU 1 CPU 2
=================== ===================
@@ -1021,8 +1033,8 @@ STORE B, STORE C } all occurring before the unordered set of { STORE D, STORE E
V
-Secondly, data dependency barriers act as partial orderings on data-dependent
-loads. Consider the following sequence of events:
+Secondly, address-dependency barriers act as partial orderings on address-
+dependent loads. Consider the following sequence of events:
CPU 1 CPU 2
======================= =======================
@@ -1067,8 +1079,8 @@ effectively random order, despite the write barrier issued by CPU 1:
In the above example, CPU 2 perceives that B is 7, despite the load of *C
(which would be B) coming after the LOAD of C.
-If, however, a data dependency barrier were to be placed between the load of C
-and the load of *C (ie: B) on CPU 2:
+If, however, an address-dependency barrier were to be placed between the load
+of C and the load of *C (ie: B) on CPU 2:
CPU 1 CPU 2
======================= =======================
@@ -1078,7 +1090,7 @@ and the load of *C (ie: B) on CPU 2:
<write barrier>
STORE C = &B LOAD X
STORE D = 4 LOAD C (gets &B)
- <data dependency barrier>
+ <address-dependency barrier>
LOAD *C (reads B)
then the following will occur:
@@ -1101,7 +1113,7 @@ then the following will occur:
| +-------+ | |
| | X->9 |------>| |
| +-------+ | |
- Makes sure all effects ---> \ ddddddddddddddddd | |
+ Makes sure all effects ---> \ aaaaaaaaaaaaaaaaa | |
prior to the store of C \ +-------+ | |
are perceptible to ----->| B->2 |------>| |
subsequent loads +-------+ | |
@@ -1292,7 +1304,7 @@ Which might appear as this:
LOAD with immediate effect : : +-------+
-Placing a read barrier or a data dependency barrier just before the second
+Placing a read barrier or an address-dependency barrier just before the second
load:
CPU 1 CPU 2
@@ -1816,20 +1828,20 @@ which may then reorder things however it wishes.
CPU MEMORY BARRIERS
-------------------
-The Linux kernel has eight basic CPU memory barriers:
+The Linux kernel has seven basic CPU memory barriers:
- TYPE MANDATORY SMP CONDITIONAL
- =============== ======================= ===========================
- GENERAL mb() smp_mb()
- WRITE wmb() smp_wmb()
- READ rmb() smp_rmb()
- DATA DEPENDENCY READ_ONCE()
+ TYPE MANDATORY SMP CONDITIONAL
+ ======================= =============== ===============
+ GENERAL mb() smp_mb()
+ WRITE wmb() smp_wmb()
+ READ rmb() smp_rmb()
+ ADDRESS DEPENDENCY READ_ONCE()
-All memory barriers except the data dependency barriers imply a compiler
-barrier. Data dependencies do not impose any additional compiler ordering.
+All memory barriers except the address-dependency barriers imply a compiler
+barrier. Address dependencies do not impose any additional compiler ordering.
-Aside: In the case of data dependencies, the compiler would be expected
+Aside: In the case of address dependencies, the compiler would be expected
to issue the loads in the correct order (eg. `a[b]` would have to load
the value of b before loading a[b]), however there is no guarantee in
the C specification that the compiler may not speculate the value of b
@@ -1894,6 +1906,7 @@ There are some more advanced barrier functions:
(*) dma_wmb();
(*) dma_rmb();
+ (*) dma_mb();
These are for use with consistent memory to guarantee the ordering
of writes or reads of shared memory accessible to both the CPU and a
@@ -1925,11 +1938,11 @@ There are some more advanced barrier functions:
The dma_rmb() allows us guarantee the device has released ownership
before we read the data from the descriptor, and the dma_wmb() allows
us to guarantee the data is written to the descriptor before the device
- can see it now has ownership. Note that, when using writel(), a prior
- wmb() is not needed to guarantee that the cache coherent memory writes
- have completed before writing to the MMIO region. The cheaper
- writel_relaxed() does not provide this guarantee and must not be used
- here.
+ can see it now has ownership. The dma_mb() implies both a dma_rmb() and
+ a dma_wmb(). Note that, when using writel(), a prior wmb() is not needed
+ to guarantee that the cache coherent memory writes have completed before
+ writing to the MMIO region. The cheaper writel_relaxed() does not provide
+ this guarantee and must not be used here.
See the subsection "Kernel I/O barrier effects" for more information on
relaxed I/O accessors and the Documentation/core-api/dma-api.rst file for
@@ -2748,7 +2761,8 @@ is discarded from the CPU's cache and reloaded. To deal with this, the
appropriate part of the kernel must invalidate the overlapping bits of the
cache on each CPU.
-See Documentation/core-api/cachetlb.rst for more information on cache management.
+See Documentation/core-api/cachetlb.rst for more information on cache
+management.
CACHE COHERENCY VS MMIO
@@ -2888,8 +2902,8 @@ AND THEN THERE'S THE ALPHA
The DEC Alpha CPU is one of the most relaxed CPUs there is. Not only that,
some versions of the Alpha CPU have a split data cache, permitting them to have
two semantically-related cache lines updated at separate times. This is where
-the data dependency barrier really becomes necessary as this synchronises both
-caches with the memory coherence system, thus making it seem like pointer
+the address-dependency barrier really becomes necessary as this synchronises
+both caches with the memory coherence system, thus making it seem like pointer
changes vs new data occur in the right order.
The Alpha defines the Linux kernel's memory model, although as of v4.15
diff --git a/Documentation/vm/active_mm.rst b/Documentation/mm/active_mm.rst
index 6f8269c284ed..6f8269c284ed 100644
--- a/Documentation/vm/active_mm.rst
+++ b/Documentation/mm/active_mm.rst
diff --git a/Documentation/vm/arch_pgtable_helpers.rst b/Documentation/mm/arch_pgtable_helpers.rst
index cbaee9e59241..cbaee9e59241 100644
--- a/Documentation/vm/arch_pgtable_helpers.rst
+++ b/Documentation/mm/arch_pgtable_helpers.rst
diff --git a/Documentation/vm/balance.rst b/Documentation/mm/balance.rst
index 6a1fadf3e173..6a1fadf3e173 100644
--- a/Documentation/vm/balance.rst
+++ b/Documentation/mm/balance.rst
diff --git a/Documentation/vm/bootmem.rst b/Documentation/mm/bootmem.rst
index eb2b31eedfa1..eb2b31eedfa1 100644
--- a/Documentation/vm/bootmem.rst
+++ b/Documentation/mm/bootmem.rst
diff --git a/Documentation/vm/damon/api.rst b/Documentation/mm/damon/api.rst
index 08f34df45523..08f34df45523 100644
--- a/Documentation/vm/damon/api.rst
+++ b/Documentation/mm/damon/api.rst
diff --git a/Documentation/vm/damon/design.rst b/Documentation/mm/damon/design.rst
index 0cff6fac6b7e..0cff6fac6b7e 100644
--- a/Documentation/vm/damon/design.rst
+++ b/Documentation/mm/damon/design.rst
diff --git a/Documentation/vm/damon/faq.rst b/Documentation/mm/damon/faq.rst
index dde7e2414ee6..dde7e2414ee6 100644
--- a/Documentation/vm/damon/faq.rst
+++ b/Documentation/mm/damon/faq.rst
diff --git a/Documentation/vm/damon/index.rst b/Documentation/mm/damon/index.rst
index 48c0bbff98b2..48c0bbff98b2 100644
--- a/Documentation/vm/damon/index.rst
+++ b/Documentation/mm/damon/index.rst
diff --git a/Documentation/vm/free_page_reporting.rst b/Documentation/mm/free_page_reporting.rst
index 8c05e62d8b2b..8c05e62d8b2b 100644
--- a/Documentation/vm/free_page_reporting.rst
+++ b/Documentation/mm/free_page_reporting.rst
diff --git a/Documentation/vm/frontswap.rst b/Documentation/mm/frontswap.rst
index feecc5e24477..feecc5e24477 100644
--- a/Documentation/vm/frontswap.rst
+++ b/Documentation/mm/frontswap.rst
diff --git a/Documentation/vm/highmem.rst b/Documentation/mm/highmem.rst
index c9887f241c6c..0f731d9196b0 100644
--- a/Documentation/vm/highmem.rst
+++ b/Documentation/mm/highmem.rst
@@ -60,17 +60,40 @@ list shows them in order of preference of use.
This function should be preferred, where feasible, over all the others.
These mappings are thread-local and CPU-local, meaning that the mapping
- can only be accessed from within this thread and the thread is bound the
- CPU while the mapping is active. Even if the thread is preempted (since
- preemption is never disabled by the function) the CPU can not be
- unplugged from the system via CPU-hotplug until the mapping is disposed.
+ can only be accessed from within this thread and the thread is bound to the
+ CPU while the mapping is active. Although preemption is never disabled by
+ this function, the CPU can not be unplugged from the system via
+ CPU-hotplug until the mapping is disposed.
It's valid to take pagefaults in a local kmap region, unless the context
in which the local mapping is acquired does not allow it for other reasons.
+ As said, pagefaults and preemption are never disabled. There is no need to
+ disable preemption because, when context switches to a different task, the
+ maps of the outgoing task are saved and those of the incoming one are
+ restored.
+
kmap_local_page() always returns a valid virtual address and it is assumed
that kunmap_local() will never fail.
+ On CONFIG_HIGHMEM=n kernels and for low memory pages this returns the
+ virtual address of the direct mapping. Only real highmem pages are
+ temporarily mapped. Therefore, users may call a plain page_address()
+ for pages which are known to not come from ZONE_HIGHMEM. However, it is
+ always safe to use kmap_local_page() / kunmap_local().
+
+ While it is significantly faster than kmap(), for the higmem case it
+ comes with restrictions about the pointers validity. Contrary to kmap()
+ mappings, the local mappings are only valid in the context of the caller
+ and cannot be handed to other contexts. This implies that users must
+ be absolutely sure to keep the use of the return address local to the
+ thread which mapped it.
+
+ Most code can be designed to use thread local mappings. User should
+ therefore try to design their code to avoid the use of kmap() by mapping
+ pages in the same thread the address will be used and prefer
+ kmap_local_page().
+
Nesting kmap_local_page() and kmap_atomic() mappings is allowed to a certain
extent (up to KMAP_TYPE_NR) but their invocations have to be strictly ordered
because the map implementation is stack based. See kmap_local_page() kdocs
diff --git a/Documentation/vm/hmm.rst b/Documentation/mm/hmm.rst
index f2a59ed82ed3..f2a59ed82ed3 100644
--- a/Documentation/vm/hmm.rst
+++ b/Documentation/mm/hmm.rst
diff --git a/Documentation/vm/hugetlbfs_reserv.rst b/Documentation/mm/hugetlbfs_reserv.rst
index f143954e0d05..f143954e0d05 100644
--- a/Documentation/vm/hugetlbfs_reserv.rst
+++ b/Documentation/mm/hugetlbfs_reserv.rst
diff --git a/Documentation/vm/hwpoison.rst b/Documentation/mm/hwpoison.rst
index b9d5253c1305..b9d5253c1305 100644
--- a/Documentation/vm/hwpoison.rst
+++ b/Documentation/mm/hwpoison.rst
diff --git a/Documentation/vm/index.rst b/Documentation/mm/index.rst
index 575ccd40e30c..4aa12b8be278 100644
--- a/Documentation/vm/index.rst
+++ b/Documentation/mm/index.rst
@@ -51,6 +51,7 @@ above structured documentation, or deleted if it has served its purpose.
ksm
memory-model
mmu_notifier
+ multigen_lru
numa
overcommit-accounting
page_migration
diff --git a/Documentation/vm/ksm.rst b/Documentation/mm/ksm.rst
index 9e37add068e6..f83cfbc12f4c 100644
--- a/Documentation/vm/ksm.rst
+++ b/Documentation/mm/ksm.rst
@@ -26,7 +26,7 @@ tree.
If a KSM page is shared between less than ``max_page_sharing`` VMAs,
the node of the stable tree that represents such KSM page points to a
-list of struct rmap_item and the ``page->mapping`` of the
+list of struct ksm_rmap_item and the ``page->mapping`` of the
KSM page points to the stable tree node.
When the sharing passes this threshold, KSM adds a second dimension to
diff --git a/Documentation/vm/memory-model.rst b/Documentation/mm/memory-model.rst
index 30e8fbed6914..3779e562dc76 100644
--- a/Documentation/vm/memory-model.rst
+++ b/Documentation/mm/memory-model.rst
@@ -170,7 +170,7 @@ The users of `ZONE_DEVICE` are:
* hmm: Extend `ZONE_DEVICE` with `->page_fault()` and `->page_free()`
event callbacks to allow a device-driver to coordinate memory management
events related to device-memory, typically GPU memory. See
- Documentation/vm/hmm.rst.
+ Documentation/mm/hmm.rst.
* p2pdma: Create `struct page` objects to allow peer devices in a
PCI/-E topology to coordinate direct-DMA operations between themselves,
diff --git a/Documentation/vm/mmu_notifier.rst b/Documentation/mm/mmu_notifier.rst
index df5d7777fc6b..df5d7777fc6b 100644
--- a/Documentation/vm/mmu_notifier.rst
+++ b/Documentation/mm/mmu_notifier.rst
diff --git a/Documentation/mm/multigen_lru.rst b/Documentation/mm/multigen_lru.rst
new file mode 100644
index 000000000000..d7062c6a8946
--- /dev/null
+++ b/Documentation/mm/multigen_lru.rst
@@ -0,0 +1,159 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============
+Multi-Gen LRU
+=============
+The multi-gen LRU is an alternative LRU implementation that optimizes
+page reclaim and improves performance under memory pressure. Page
+reclaim decides the kernel's caching policy and ability to overcommit
+memory. It directly impacts the kswapd CPU usage and RAM efficiency.
+
+Design overview
+===============
+Objectives
+----------
+The design objectives are:
+
+* Good representation of access recency
+* Try to profit from spatial locality
+* Fast paths to make obvious choices
+* Simple self-correcting heuristics
+
+The representation of access recency is at the core of all LRU
+implementations. In the multi-gen LRU, each generation represents a
+group of pages with similar access recency. Generations establish a
+(time-based) common frame of reference and therefore help make better
+choices, e.g., between different memcgs on a computer or different
+computers in a data center (for job scheduling).
+
+Exploiting spatial locality improves efficiency when gathering the
+accessed bit. A rmap walk targets a single page and does not try to
+profit from discovering a young PTE. A page table walk can sweep all
+the young PTEs in an address space, but the address space can be too
+sparse to make a profit. The key is to optimize both methods and use
+them in combination.
+
+Fast paths reduce code complexity and runtime overhead. Unmapped pages
+do not require TLB flushes; clean pages do not require writeback.
+These facts are only helpful when other conditions, e.g., access
+recency, are similar. With generations as a common frame of reference,
+additional factors stand out. But obvious choices might not be good
+choices; thus self-correction is necessary.
+
+The benefits of simple self-correcting heuristics are self-evident.
+Again, with generations as a common frame of reference, this becomes
+attainable. Specifically, pages in the same generation can be
+categorized based on additional factors, and a feedback loop can
+statistically compare the refault percentages across those categories
+and infer which of them are better choices.
+
+Assumptions
+-----------
+The protection of hot pages and the selection of cold pages are based
+on page access channels and patterns. There are two access channels:
+
+* Accesses through page tables
+* Accesses through file descriptors
+
+The protection of the former channel is by design stronger because:
+
+1. The uncertainty in determining the access patterns of the former
+ channel is higher due to the approximation of the accessed bit.
+2. The cost of evicting the former channel is higher due to the TLB
+ flushes required and the likelihood of encountering the dirty bit.
+3. The penalty of underprotecting the former channel is higher because
+ applications usually do not prepare themselves for major page
+ faults like they do for blocked I/O. E.g., GUI applications
+ commonly use dedicated I/O threads to avoid blocking rendering
+ threads.
+
+There are also two access patterns:
+
+* Accesses exhibiting temporal locality
+* Accesses not exhibiting temporal locality
+
+For the reasons listed above, the former channel is assumed to follow
+the former pattern unless ``VM_SEQ_READ`` or ``VM_RAND_READ`` is
+present, and the latter channel is assumed to follow the latter
+pattern unless outlying refaults have been observed.
+
+Workflow overview
+=================
+Evictable pages are divided into multiple generations for each
+``lruvec``. The youngest generation number is stored in
+``lrugen->max_seq`` for both anon and file types as they are aged on
+an equal footing. The oldest generation numbers are stored in
+``lrugen->min_seq[]`` separately for anon and file types as clean file
+pages can be evicted regardless of swap constraints. These three
+variables are monotonically increasing.
+
+Generation numbers are truncated into ``order_base_2(MAX_NR_GENS+1)``
+bits in order to fit into the gen counter in ``folio->flags``. Each
+truncated generation number is an index to ``lrugen->lists[]``. The
+sliding window technique is used to track at least ``MIN_NR_GENS`` and
+at most ``MAX_NR_GENS`` generations. The gen counter stores a value
+within ``[1, MAX_NR_GENS]`` while a page is on one of
+``lrugen->lists[]``; otherwise it stores zero.
+
+Each generation is divided into multiple tiers. A page accessed ``N``
+times through file descriptors is in tier ``order_base_2(N)``. Unlike
+generations, tiers do not have dedicated ``lrugen->lists[]``. In
+contrast to moving across generations, which requires the LRU lock,
+moving across tiers only involves atomic operations on
+``folio->flags`` and therefore has a negligible cost. A feedback loop
+modeled after the PID controller monitors refaults over all the tiers
+from anon and file types and decides which tiers from which types to
+evict or protect.
+
+There are two conceptually independent procedures: the aging and the
+eviction. They form a closed-loop system, i.e., the page reclaim.
+
+Aging
+-----
+The aging produces young generations. Given an ``lruvec``, it
+increments ``max_seq`` when ``max_seq-min_seq+1`` approaches
+``MIN_NR_GENS``. The aging promotes hot pages to the youngest
+generation when it finds them accessed through page tables; the
+demotion of cold pages happens consequently when it increments
+``max_seq``. The aging uses page table walks and rmap walks to find
+young PTEs. For the former, it iterates ``lruvec_memcg()->mm_list``
+and calls ``walk_page_range()`` with each ``mm_struct`` on this list
+to scan PTEs, and after each iteration, it increments ``max_seq``. For
+the latter, when the eviction walks the rmap and finds a young PTE,
+the aging scans the adjacent PTEs. For both, on finding a young PTE,
+the aging clears the accessed bit and updates the gen counter of the
+page mapped by this PTE to ``(max_seq%MAX_NR_GENS)+1``.
+
+Eviction
+--------
+The eviction consumes old generations. Given an ``lruvec``, it
+increments ``min_seq`` when ``lrugen->lists[]`` indexed by
+``min_seq%MAX_NR_GENS`` becomes empty. To select a type and a tier to
+evict from, it first compares ``min_seq[]`` to select the older type.
+If both types are equally old, it selects the one whose first tier has
+a lower refault percentage. The first tier contains single-use
+unmapped clean pages, which are the best bet. The eviction sorts a
+page according to its gen counter if the aging has found this page
+accessed through page tables and updated its gen counter. It also
+moves a page to the next generation, i.e., ``min_seq+1``, if this page
+was accessed multiple times through file descriptors and the feedback
+loop has detected outlying refaults from the tier this page is in. To
+this end, the feedback loop uses the first tier as the baseline, for
+the reason stated earlier.
+
+Summary
+-------
+The multi-gen LRU can be disassembled into the following parts:
+
+* Generations
+* Rmap walks
+* Page table walks
+* Bloom filters
+* PID controller
+
+The aging and the eviction form a producer-consumer model;
+specifically, the latter drives the former by the sliding window over
+generations. Within the aging, rmap walks drive page table walks by
+inserting hot densely populated page tables to the Bloom filters.
+Within the eviction, the PID controller uses refaults as the feedback
+to select types to evict and tiers to protect.
diff --git a/Documentation/vm/numa.rst b/Documentation/mm/numa.rst
index 99fdeca917ca..99fdeca917ca 100644
--- a/Documentation/vm/numa.rst
+++ b/Documentation/mm/numa.rst
diff --git a/Documentation/vm/oom.rst b/Documentation/mm/oom.rst
index 18e9e40c1ec1..18e9e40c1ec1 100644
--- a/Documentation/vm/oom.rst
+++ b/Documentation/mm/oom.rst
diff --git a/Documentation/vm/overcommit-accounting.rst b/Documentation/mm/overcommit-accounting.rst
index 1addb0c374a4..a4895d6fc1c2 100644
--- a/Documentation/vm/overcommit-accounting.rst
+++ b/Documentation/mm/overcommit-accounting.rst
@@ -1,5 +1,3 @@
-.. _overcommit_accounting:
-
=====================
Overcommit Accounting
=====================
diff --git a/Documentation/vm/page_allocation.rst b/Documentation/mm/page_allocation.rst
index d9b4495561f1..d9b4495561f1 100644
--- a/Documentation/vm/page_allocation.rst
+++ b/Documentation/mm/page_allocation.rst
diff --git a/Documentation/vm/page_cache.rst b/Documentation/mm/page_cache.rst
index 75eba7c431b2..75eba7c431b2 100644
--- a/Documentation/vm/page_cache.rst
+++ b/Documentation/mm/page_cache.rst
diff --git a/Documentation/vm/page_frags.rst b/Documentation/mm/page_frags.rst
index 7d6f9385d129..7d6f9385d129 100644
--- a/Documentation/vm/page_frags.rst
+++ b/Documentation/mm/page_frags.rst
diff --git a/Documentation/vm/page_migration.rst b/Documentation/mm/page_migration.rst
index 8c5cb8147e55..11493bad7112 100644
--- a/Documentation/vm/page_migration.rst
+++ b/Documentation/mm/page_migration.rst
@@ -152,110 +152,15 @@ Steps:
Non-LRU page migration
======================
-Although migration originally aimed for reducing the latency of memory accesses
-for NUMA, compaction also uses migration to create high-order pages.
+Although migration originally aimed for reducing the latency of memory
+accesses for NUMA, compaction also uses migration to create high-order
+pages. For compaction purposes, it is also useful to be able to move
+non-LRU pages, such as zsmalloc and virtio-balloon pages.
-Current problem of the implementation is that it is designed to migrate only
-*LRU* pages. However, there are potential non-LRU pages which can be migrated
-in drivers, for example, zsmalloc, virtio-balloon pages.
-
-For virtio-balloon pages, some parts of migration code path have been hooked
-up and added virtio-balloon specific functions to intercept migration logics.
-It's too specific to a driver so other drivers who want to make their pages
-movable would have to add their own specific hooks in the migration path.
-
-To overcome the problem, VM supports non-LRU page migration which provides
-generic functions for non-LRU movable pages without driver specific hooks
-in the migration path.
-
-If a driver wants to make its pages movable, it should define three functions
-which are function pointers of struct address_space_operations.
-
-1. ``bool (*isolate_page) (struct page *page, isolate_mode_t mode);``
-
- What VM expects from isolate_page() function of driver is to return *true*
- if driver isolates the page successfully. On returning true, VM marks the page
- as PG_isolated so concurrent isolation in several CPUs skip the page
- for isolation. If a driver cannot isolate the page, it should return *false*.
-
- Once page is successfully isolated, VM uses page.lru fields so driver
- shouldn't expect to preserve values in those fields.
-
-2. ``int (*migratepage) (struct address_space *mapping,``
-| ``struct page *newpage, struct page *oldpage, enum migrate_mode);``
-
- After isolation, VM calls migratepage() of driver with the isolated page.
- The function of migratepage() is to move the contents of the old page to the
- new page
- and set up fields of struct page newpage. Keep in mind that you should
- indicate to the VM the oldpage is no longer movable via __ClearPageMovable()
- under page_lock if you migrated the oldpage successfully and returned
- MIGRATEPAGE_SUCCESS. If driver cannot migrate the page at the moment, driver
- can return -EAGAIN. On -EAGAIN, VM will retry page migration in a short time
- because VM interprets -EAGAIN as "temporary migration failure". On returning
- any error except -EAGAIN, VM will give up the page migration without
- retrying.
-
- Driver shouldn't touch the page.lru field while in the migratepage() function.
-
-3. ``void (*putback_page)(struct page *);``
-
- If migration fails on the isolated page, VM should return the isolated page
- to the driver so VM calls the driver's putback_page() with the isolated page.
- In this function, the driver should put the isolated page back into its own data
- structure.
-
-Non-LRU movable page flags
-
- There are two page flags for supporting non-LRU movable page.
-
- * PG_movable
-
- Driver should use the function below to make page movable under page_lock::
-
- void __SetPageMovable(struct page *page, struct address_space *mapping)
-
- It needs argument of address_space for registering migration
- family functions which will be called by VM. Exactly speaking,
- PG_movable is not a real flag of struct page. Rather, VM
- reuses the page->mapping's lower bits to represent it::
-
- #define PAGE_MAPPING_MOVABLE 0x2
- page->mapping = page->mapping | PAGE_MAPPING_MOVABLE;
-
- so driver shouldn't access page->mapping directly. Instead, driver should
- use page_mapping() which masks off the low two bits of page->mapping under
- page lock so it can get the right struct address_space.
-
- For testing of non-LRU movable pages, VM supports __PageMovable() function.
- However, it doesn't guarantee to identify non-LRU movable pages because
- the page->mapping field is unified with other variables in struct page.
- If the driver releases the page after isolation by VM, page->mapping
- doesn't have a stable value although it has PAGE_MAPPING_MOVABLE set
- (look at __ClearPageMovable). But __PageMovable() is cheap to call whether
- page is LRU or non-LRU movable once the page has been isolated because LRU
- pages can never have PAGE_MAPPING_MOVABLE set in page->mapping. It is also
- good for just peeking to test non-LRU movable pages before more expensive
- checking with lock_page() in pfn scanning to select a victim.
-
- For guaranteeing non-LRU movable page, VM provides PageMovable() function.
- Unlike __PageMovable(), PageMovable() validates page->mapping and
- mapping->a_ops->isolate_page under lock_page(). The lock_page() prevents
- sudden destroying of page->mapping.
-
- Drivers using __SetPageMovable() should clear the flag via
- __ClearMovablePage() under page_lock() before the releasing the page.
-
- * PG_isolated
-
- To prevent concurrent isolation among several CPUs, VM marks isolated page
- as PG_isolated under lock_page(). So if a CPU encounters PG_isolated
- non-LRU movable page, it can skip it. Driver doesn't need to manipulate the
- flag because VM will set/clear it automatically. Keep in mind that if the
- driver sees a PG_isolated page, it means the page has been isolated by the
- VM so it shouldn't touch the page.lru field.
- The PG_isolated flag is aliased with the PG_reclaim flag so drivers
- shouldn't use PG_isolated for its own purposes.
+If a driver wants to make its pages movable, it should define a struct
+movable_operations. It then needs to call __SetPageMovable() on each
+page that it may be able to move. This uses the ``page->mapping`` field,
+so this field is not available for the driver to use for other purposes.
Monitoring Migration
=====================
@@ -286,3 +191,5 @@ THP_MIGRATION_FAIL and PGMIGRATE_FAIL to increase.
Christoph Lameter, May 8, 2006.
Minchan Kim, Mar 28, 2016.
+
+.. kernel-doc:: include/linux/migrate.h
diff --git a/Documentation/vm/page_owner.rst b/Documentation/mm/page_owner.rst
index f5c954afe97c..f18fd8907049 100644
--- a/Documentation/vm/page_owner.rst
+++ b/Documentation/mm/page_owner.rst
@@ -94,6 +94,11 @@ Usage
Page allocated via order XXX, ...
PFN XXX ...
// Detailed stack
+ By default, it will do full pfn dump, to start with a given pfn,
+ page_owner supports fseek.
+
+ FILE *fp = fopen("/sys/kernel/debug/page_owner", "r");
+ fseek(fp, pfn_start, SEEK_SET);
The ``page_owner_sort`` tool ignores ``PFN`` rows, puts the remaining rows
in buf, uses regexp to extract the page order value, counts the times
diff --git a/Documentation/vm/page_reclaim.rst b/Documentation/mm/page_reclaim.rst
index 50a30b7f8ac3..50a30b7f8ac3 100644
--- a/Documentation/vm/page_reclaim.rst
+++ b/Documentation/mm/page_reclaim.rst
diff --git a/Documentation/vm/page_table_check.rst b/Documentation/mm/page_table_check.rst
index 1a09472f10a3..1a09472f10a3 100644
--- a/Documentation/vm/page_table_check.rst
+++ b/Documentation/mm/page_table_check.rst
diff --git a/Documentation/vm/page_tables.rst b/Documentation/mm/page_tables.rst
index 96939571d7bc..96939571d7bc 100644
--- a/Documentation/vm/page_tables.rst
+++ b/Documentation/mm/page_tables.rst
diff --git a/Documentation/vm/physical_memory.rst b/Documentation/mm/physical_memory.rst
index 2ab7b8c1c863..2ab7b8c1c863 100644
--- a/Documentation/vm/physical_memory.rst
+++ b/Documentation/mm/physical_memory.rst
diff --git a/Documentation/vm/process_addrs.rst b/Documentation/mm/process_addrs.rst
index e8618fbc62c9..e8618fbc62c9 100644
--- a/Documentation/vm/process_addrs.rst
+++ b/Documentation/mm/process_addrs.rst
diff --git a/Documentation/vm/remap_file_pages.rst b/Documentation/mm/remap_file_pages.rst
index 7bef6718e3a9..7bef6718e3a9 100644
--- a/Documentation/vm/remap_file_pages.rst
+++ b/Documentation/mm/remap_file_pages.rst
diff --git a/Documentation/vm/shmfs.rst b/Documentation/mm/shmfs.rst
index 8b01ebb4c30e..8b01ebb4c30e 100644
--- a/Documentation/vm/shmfs.rst
+++ b/Documentation/mm/shmfs.rst
diff --git a/Documentation/vm/slab.rst b/Documentation/mm/slab.rst
index 87d5a5bb172f..87d5a5bb172f 100644
--- a/Documentation/vm/slab.rst
+++ b/Documentation/mm/slab.rst
diff --git a/Documentation/vm/slub.rst b/Documentation/mm/slub.rst
index 43063ade737a..4e1578186b4f 100644
--- a/Documentation/vm/slub.rst
+++ b/Documentation/mm/slub.rst
@@ -400,21 +400,30 @@ information:
allocated objects. The output is sorted by frequency of each trace.
Information in the output:
- Number of objects, allocating function, minimal/average/maximal jiffies since alloc,
- pid range of the allocating processes, cpu mask of allocating cpus, and stack trace.
+ Number of objects, allocating function, possible memory wastage of
+ kmalloc objects(total/per-object), minimal/average/maximal jiffies
+ since alloc, pid range of the allocating processes, cpu mask of
+ allocating cpus, numa node mask of origins of memory, and stack trace.
Example:::
- 1085 populate_error_injection_list+0x97/0x110 age=166678/166680/166682 pid=1 cpus=1::
- __slab_alloc+0x6d/0x90
- kmem_cache_alloc_trace+0x2eb/0x300
- populate_error_injection_list+0x97/0x110
- init_error_injection+0x1b/0x71
- do_one_initcall+0x5f/0x2d0
- kernel_init_freeable+0x26f/0x2d7
- kernel_init+0xe/0x118
- ret_from_fork+0x22/0x30
-
+ 338 pci_alloc_dev+0x2c/0xa0 waste=521872/1544 age=290837/291891/293509 pid=1 cpus=106 nodes=0-1
+ __kmem_cache_alloc_node+0x11f/0x4e0
+ kmalloc_trace+0x26/0xa0
+ pci_alloc_dev+0x2c/0xa0
+ pci_scan_single_device+0xd2/0x150
+ pci_scan_slot+0xf7/0x2d0
+ pci_scan_child_bus_extend+0x4e/0x360
+ acpi_pci_root_create+0x32e/0x3b0
+ pci_acpi_scan_root+0x2b9/0x2d0
+ acpi_pci_root_add.cold.11+0x110/0xb0a
+ acpi_bus_attach+0x262/0x3f0
+ device_for_each_child+0xb7/0x110
+ acpi_dev_for_each_child+0x77/0xa0
+ acpi_bus_attach+0x108/0x3f0
+ device_for_each_child+0xb7/0x110
+ acpi_dev_for_each_child+0x77/0xa0
+ acpi_bus_attach+0x108/0x3f0
2. free_traces::
diff --git a/Documentation/vm/split_page_table_lock.rst b/Documentation/mm/split_page_table_lock.rst
index c08919662704..c08919662704 100644
--- a/Documentation/vm/split_page_table_lock.rst
+++ b/Documentation/mm/split_page_table_lock.rst
diff --git a/Documentation/vm/swap.rst b/Documentation/mm/swap.rst
index 78819bd4d745..78819bd4d745 100644
--- a/Documentation/vm/swap.rst
+++ b/Documentation/mm/swap.rst
diff --git a/Documentation/vm/transhuge.rst b/Documentation/mm/transhuge.rst
index 216db1d67d04..216db1d67d04 100644
--- a/Documentation/vm/transhuge.rst
+++ b/Documentation/mm/transhuge.rst
diff --git a/Documentation/vm/unevictable-lru.rst b/Documentation/mm/unevictable-lru.rst
index b280367d6a44..4a0e158aa9ce 100644
--- a/Documentation/vm/unevictable-lru.rst
+++ b/Documentation/mm/unevictable-lru.rst
@@ -197,7 +197,7 @@ unevictable list for the memory cgroup and node being scanned.
There may be situations where a page is mapped into a VM_LOCKED VMA, but the
page is not marked as PG_mlocked. Such pages will make it all the way to
shrink_active_list() or shrink_page_list() where they will be detected when
-vmscan walks the reverse map in page_referenced() or try_to_unmap(). The page
+vmscan walks the reverse map in folio_referenced() or try_to_unmap(). The page
is culled to the unevictable list when it is released by the shrinker.
To "cull" an unevictable page, vmscan simply puts the page back on the LRU list
@@ -267,7 +267,7 @@ the LRU. Such pages can be "noticed" by memory management in several places:
(4) in the fault path and when a VM_LOCKED stack segment is expanded; or
(5) as mentioned above, in vmscan:shrink_page_list() when attempting to
- reclaim a page in a VM_LOCKED VMA by page_referenced() or try_to_unmap().
+ reclaim a page in a VM_LOCKED VMA by folio_referenced() or try_to_unmap().
mlocked pages become unlocked and rescued from the unevictable list when:
@@ -547,7 +547,7 @@ vmscan's shrink_inactive_list() and shrink_page_list() also divert obviously
unevictable pages found on the inactive lists to the appropriate memory cgroup
and node unevictable list.
-rmap's page_referenced_one(), called via vmscan's shrink_active_list() or
+rmap's folio_referenced_one(), called via vmscan's shrink_active_list() or
shrink_page_list(), and rmap's try_to_unmap_one() called via shrink_page_list(),
check for (3) pages still mapped into VM_LOCKED VMAs, and call mlock_vma_page()
to correct them. Such pages are culled to the unevictable list when released
diff --git a/Documentation/vm/vmalloc.rst b/Documentation/mm/vmalloc.rst
index 363fe20d6b9f..363fe20d6b9f 100644
--- a/Documentation/vm/vmalloc.rst
+++ b/Documentation/mm/vmalloc.rst
diff --git a/Documentation/vm/vmalloced-kernel-stacks.rst b/Documentation/mm/vmalloced-kernel-stacks.rst
index fc8c67833af6..fc8c67833af6 100644
--- a/Documentation/vm/vmalloced-kernel-stacks.rst
+++ b/Documentation/mm/vmalloced-kernel-stacks.rst
diff --git a/Documentation/vm/vmemmap_dedup.rst b/Documentation/mm/vmemmap_dedup.rst
index c9c495f62d12..a4b12ff906c4 100644
--- a/Documentation/vm/vmemmap_dedup.rst
+++ b/Documentation/mm/vmemmap_dedup.rst
@@ -7,23 +7,25 @@ A vmemmap diet for HugeTLB and Device DAX
HugeTLB
=======
-The struct page structures (page structs) are used to describe a physical
-page frame. By default, there is a one-to-one mapping from a page frame to
-it's corresponding page struct.
+This section is to explain how HugeTLB Vmemmap Optimization (HVO) works.
+
+The ``struct page`` structures are used to describe a physical page frame. By
+default, there is a one-to-one mapping from a page frame to it's corresponding
+``struct page``.
HugeTLB pages consist of multiple base page size pages and is supported by many
architectures. See Documentation/admin-guide/mm/hugetlbpage.rst for more
details. On the x86-64 architecture, HugeTLB pages of size 2MB and 1GB are
currently supported. Since the base page size on x86 is 4KB, a 2MB HugeTLB page
consists of 512 base pages and a 1GB HugeTLB page consists of 4096 base pages.
-For each base page, there is a corresponding page struct.
+For each base page, there is a corresponding ``struct page``.
-Within the HugeTLB subsystem, only the first 4 page structs are used to
-contain unique information about a HugeTLB page. __NR_USED_SUBPAGE provides
-this upper limit. The only 'useful' information in the remaining page structs
+Within the HugeTLB subsystem, only the first 4 ``struct page`` are used to
+contain unique information about a HugeTLB page. ``__NR_USED_SUBPAGE`` provides
+this upper limit. The only 'useful' information in the remaining ``struct page``
is the compound_head field, and this field is the same for all tail pages.
-By removing redundant page structs for HugeTLB pages, memory can be returned
+By removing redundant ``struct page`` for HugeTLB pages, memory can be returned
to the buddy allocator for other uses.
Different architectures support different HugeTLB pages. For example, the
@@ -44,7 +46,7 @@ page.
| | 64KB | 2MB | 512MB | 16GB | |
+--------------+-----------+-----------+-----------+-----------+-----------+
-When the system boot up, every HugeTLB page has more than one struct page
+When the system boot up, every HugeTLB page has more than one ``struct page``
structs which size is (unit: pages)::
struct_size = HugeTLB_Size / PAGE_SIZE * sizeof(struct page) / PAGE_SIZE
@@ -74,10 +76,10 @@ Where n is how many pte entries which one page can contains. So the value of
n is (PAGE_SIZE / sizeof(pte_t)).
This optimization only supports 64-bit system, so the value of sizeof(pte_t)
-is 8. And this optimization also applicable only when the size of struct page
-is a power of two. In most cases, the size of struct page is 64 bytes (e.g.
+is 8. And this optimization also applicable only when the size of ``struct page``
+is a power of two. In most cases, the size of ``struct page`` is 64 bytes (e.g.
x86-64 and arm64). So if we use pmd level mapping for a HugeTLB page, the
-size of struct page structs of it is 8 page frames which size depends on the
+size of ``struct page`` structs of it is 8 page frames which size depends on the
size of the base page.
For the HugeTLB page of the pud level mapping, then::
@@ -86,7 +88,7 @@ For the HugeTLB page of the pud level mapping, then::
= PAGE_SIZE / 8 * 8 (pages)
= PAGE_SIZE (pages)
-Where the struct_size(pmd) is the size of the struct page structs of a
+Where the struct_size(pmd) is the size of the ``struct page`` structs of a
HugeTLB page of the pmd level mapping.
E.g.: A 2MB HugeTLB page on x86_64 consists in 8 page frames while 1GB
@@ -94,7 +96,7 @@ HugeTLB page consists in 4096.
Next, we take the pmd level mapping of the HugeTLB page as an example to
show the internal implementation of this optimization. There are 8 pages
-struct page structs associated with a HugeTLB page which is pmd mapped.
+``struct page`` structs associated with a HugeTLB page which is pmd mapped.
Here is how things look before optimization::
@@ -122,10 +124,10 @@ Here is how things look before optimization::
+-----------+
The value of page->compound_head is the same for all tail pages. The first
-page of page structs (page 0) associated with the HugeTLB page contains the 4
-page structs necessary to describe the HugeTLB. The only use of the remaining
-pages of page structs (page 1 to page 7) is to point to page->compound_head.
-Therefore, we can remap pages 1 to 7 to page 0. Only 1 page of page structs
+page of ``struct page`` (page 0) associated with the HugeTLB page contains the 4
+``struct page`` necessary to describe the HugeTLB. The only use of the remaining
+pages of ``struct page`` (page 1 to page 7) is to point to page->compound_head.
+Therefore, we can remap pages 1 to 7 to page 0. Only 1 page of ``struct page``
will be used for each HugeTLB page. This will allow us to free the remaining
7 pages to the buddy allocator.
@@ -167,13 +169,37 @@ entries that can be cached in a single TLB entry.
The contiguous bit is used to increase the mapping size at the pmd and pte
(last) level. So this type of HugeTLB page can be optimized only when its
-size of the struct page structs is greater than 1 page.
+size of the ``struct page`` structs is greater than **1** page.
Notice: The head vmemmap page is not freed to the buddy allocator and all
tail vmemmap pages are mapped to the head vmemmap page frame. So we can see
-more than one struct page struct with PG_head (e.g. 8 per 2 MB HugeTLB page)
-associated with each HugeTLB page. The compound_head() can handle this
-correctly (more details refer to the comment above compound_head()).
+more than one ``struct page`` struct with ``PG_head`` (e.g. 8 per 2 MB HugeTLB
+page) associated with each HugeTLB page. The ``compound_head()`` can handle
+this correctly. There is only **one** head ``struct page``, the tail
+``struct page`` with ``PG_head`` are fake head ``struct page``. We need an
+approach to distinguish between those two different types of ``struct page`` so
+that ``compound_head()`` can return the real head ``struct page`` when the
+parameter is the tail ``struct page`` but with ``PG_head``. The following code
+snippet describes how to distinguish between real and fake head ``struct page``.
+
+.. code-block:: c
+
+ if (test_bit(PG_head, &page->flags)) {
+ unsigned long head = READ_ONCE(page[1].compound_head);
+
+ if (head & 1) {
+ if (head == (unsigned long)page + 1)
+ /* head struct page */
+ else
+ /* tail struct page */
+ } else {
+ /* head struct page */
+ }
+ }
+
+We can safely access the field of the **page[1]** with ``PG_head`` because the
+page is a compound page composed with at least two contiguous pages.
+The implementation refers to ``page_fixed_fake_head()``.
Device DAX
==========
@@ -187,7 +213,7 @@ PMD_SIZE (2M on x86_64) and PUD_SIZE (1G on x86_64).
The differences with HugeTLB are relatively minor.
-It only use 3 page structs for storing all information as opposed
+It only use 3 ``struct page`` for storing all information as opposed
to 4 on HugeTLB pages.
There's no remapping of vmemmap given that device-dax memory is not part of
diff --git a/Documentation/vm/z3fold.rst b/Documentation/mm/z3fold.rst
index 224e3c61d686..224e3c61d686 100644
--- a/Documentation/vm/z3fold.rst
+++ b/Documentation/mm/z3fold.rst
diff --git a/Documentation/vm/zsmalloc.rst b/Documentation/mm/zsmalloc.rst
index 6e79893d6132..6e79893d6132 100644
--- a/Documentation/vm/zsmalloc.rst
+++ b/Documentation/mm/zsmalloc.rst
diff --git a/Documentation/networking/bonding.rst b/Documentation/networking/bonding.rst
index 43be3782e5df..96cd7a26f3d9 100644
--- a/Documentation/networking/bonding.rst
+++ b/Documentation/networking/bonding.rst
@@ -780,6 +780,17 @@ peer_notif_delay
value is 0 which means to match the value of the link monitor
interval.
+prio
+ Slave priority. A higher number means higher priority.
+ The primary slave has the highest priority. This option also
+ follows the primary_reselect rules.
+
+ This option could only be configured via netlink, and is only valid
+ for active-backup(1), balance-tlb (5) and balance-alb (6) mode.
+ The valid value range is a signed 32 bit integer.
+
+ The default value is 0.
+
primary
A string (eth0, eth2, etc) specifying which slave is the
@@ -835,7 +846,7 @@ primary_reselect
tlb_dynamic_lb
Specifies if dynamic shuffling of flows is enabled in tlb
- mode. The value has no effect on any other modes.
+ or alb mode. The value has no effect on any other modes.
The default behavior of tlb mode is to shuffle active flows across
slaves based on the load in that interval. This gives nice lb
@@ -1971,15 +1982,6 @@ uses the response as an indication that the link is operating. This
gives some assurance that traffic is actually flowing to and from one
or more peers on the local network.
-The ARP monitor relies on the device driver itself to verify
-that traffic is flowing. In particular, the driver must keep up to
-date the last receive time, dev->last_rx. Drivers that use NETIF_F_LLTX
-flag must also update netdev_queue->trans_start. If they do not, then the
-ARP monitor will immediately fail any slaves using that driver, and
-those slaves will stay down. If networking monitoring (tcpdump, etc)
-shows the ARP requests and replies on the network, then it may be that
-your device driver is not updating last_rx and trans_start.
-
7.2 Configuring Multiple ARP Targets
------------------------------------
diff --git a/Documentation/networking/can.rst b/Documentation/networking/can.rst
index f34cb0e4460e..ebc822e605f5 100644
--- a/Documentation/networking/can.rst
+++ b/Documentation/networking/can.rst
@@ -168,7 +168,7 @@ reflect the correct [#f1]_ traffic on the node the loopback of the sent
data has to be performed right after a successful transmission. If
the CAN network interface is not capable of performing the loopback for
some reason the SocketCAN core can do this task as a fallback solution.
-See :ref:`socketcan-local-loopback1` for details (recommended).
+See :ref:`socketcan-local-loopback2` for details (recommended).
The loopback functionality is enabled by default to reflect standard
networking behaviour for CAN applications. Due to some requests from
diff --git a/Documentation/networking/decnet.rst b/Documentation/networking/decnet.rst
deleted file mode 100644
index b8bc11ff8370..000000000000
--- a/Documentation/networking/decnet.rst
+++ /dev/null
@@ -1,243 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-=========================================
-Linux DECnet Networking Layer Information
-=========================================
-
-1. Other documentation....
-==========================
-
- - Project Home Pages
- - http://www.chygwyn.com/ - Kernel info
- - http://linux-decnet.sourceforge.net/ - Userland tools
- - http://www.sourceforge.net/projects/linux-decnet/ - Status page
-
-2. Configuring the kernel
-=========================
-
-Be sure to turn on the following options:
-
- - CONFIG_DECNET (obviously)
- - CONFIG_PROC_FS (to see what's going on)
- - CONFIG_SYSCTL (for easy configuration)
-
-if you want to try out router support (not properly debugged yet)
-you'll need the following options as well...
-
- - CONFIG_DECNET_ROUTER (to be able to add/delete routes)
- - CONFIG_NETFILTER (will be required for the DECnet routing daemon)
-
-Don't turn on SIOCGIFCONF support for DECnet unless you are really sure
-that you need it, in general you won't and it can cause ifconfig to
-malfunction.
-
-Run time configuration has changed slightly from the 2.4 system. If you
-want to configure an endnode, then the simplified procedure is as follows:
-
- - Set the MAC address on your ethernet card before starting _any_ other
- network protocols.
-
-As soon as your network card is brought into the UP state, DECnet should
-start working. If you need something more complicated or are unsure how
-to set the MAC address, see the next section. Also all configurations which
-worked with 2.4 will work under 2.5 with no change.
-
-3. Command line options
-=======================
-
-You can set a DECnet address on the kernel command line for compatibility
-with the 2.4 configuration procedure, but in general it's not needed any more.
-If you do st a DECnet address on the command line, it has only one purpose
-which is that its added to the addresses on the loopback device.
-
-With 2.4 kernels, DECnet would only recognise addresses as local if they
-were added to the loopback device. In 2.5, any local interface address
-can be used to loop back to the local machine. Of course this does not
-prevent you adding further addresses to the loopback device if you
-want to.
-
-N.B. Since the address list of an interface determines the addresses for
-which "hello" messages are sent, if you don't set an address on the loopback
-interface then you won't see any entries in /proc/net/neigh for the local
-host until such time as you start a connection. This doesn't affect the
-operation of the local communications in any other way though.
-
-The kernel command line takes options looking like the following::
-
- decnet.addr=1,2
-
-the two numbers are the node address 1,2 = 1.2 For 2.2.xx kernels
-and early 2.3.xx kernels, you must use a comma when specifying the
-DECnet address like this. For more recent 2.3.xx kernels, you may
-use almost any character except space, although a `.` would be the most
-obvious choice :-)
-
-There used to be a third number specifying the node type. This option
-has gone away in favour of a per interface node type. This is now set
-using /proc/sys/net/decnet/conf/<dev>/forwarding. This file can be
-set with a single digit, 0=EndNode, 1=L1 Router and 2=L2 Router.
-
-There are also equivalent options for modules. The node address can
-also be set through the /proc/sys/net/decnet/ files, as can other system
-parameters.
-
-Currently the only supported devices are ethernet and ip_gre. The
-ethernet address of your ethernet card has to be set according to the DECnet
-address of the node in order for it to be autoconfigured (and then appear in
-/proc/net/decnet_dev). There is a utility available at the above
-FTP sites called dn2ethaddr which can compute the correct ethernet
-address to use. The address can be set by ifconfig either before or
-at the time the device is brought up. If you are using RedHat you can
-add the line::
-
- MACADDR=AA:00:04:00:03:04
-
-or something similar, to /etc/sysconfig/network-scripts/ifcfg-eth0 or
-wherever your network card's configuration lives. Setting the MAC address
-of your ethernet card to an address starting with "hi-ord" will cause a
-DECnet address which matches to be added to the interface (which you can
-verify with iproute2).
-
-The default device for routing can be set through the /proc filesystem
-by setting /proc/sys/net/decnet/default_device to the
-device you want DECnet to route packets out of when no specific route
-is available. Usually this will be eth0, for example::
-
- echo -n "eth0" >/proc/sys/net/decnet/default_device
-
-If you don't set the default device, then it will default to the first
-ethernet card which has been autoconfigured as described above. You can
-confirm that by looking in the default_device file of course.
-
-There is a list of what the other files under /proc/sys/net/decnet/ do
-on the kernel patch web site (shown above).
-
-4. Run time kernel configuration
-================================
-
-
-This is either done through the sysctl/proc interface (see the kernel web
-pages for details on what the various options do) or through the iproute2
-package in the same way as IPv4/6 configuration is performed.
-
-Documentation for iproute2 is included with the package, although there is
-as yet no specific section on DECnet, most of the features apply to both
-IP and DECnet, albeit with DECnet addresses instead of IP addresses and
-a reduced functionality.
-
-If you want to configure a DECnet router you'll need the iproute2 package
-since its the _only_ way to add and delete routes currently. Eventually
-there will be a routing daemon to send and receive routing messages for
-each interface and update the kernel routing tables accordingly. The
-routing daemon will use netfilter to listen to routing packets, and
-rtnetlink to update the kernels routing tables.
-
-The DECnet raw socket layer has been removed since it was there purely
-for use by the routing daemon which will now use netfilter (a much cleaner
-and more generic solution) instead.
-
-5. How can I tell if its working?
-=================================
-
-Here is a quick guide of what to look for in order to know if your DECnet
-kernel subsystem is working.
-
- - Is the node address set (see /proc/sys/net/decnet/node_address)
- - Is the node of the correct type
- (see /proc/sys/net/decnet/conf/<dev>/forwarding)
- - Is the Ethernet MAC address of each Ethernet card set to match
- the DECnet address. If in doubt use the dn2ethaddr utility available
- at the ftp archive.
- - If the previous two steps are satisfied, and the Ethernet card is up,
- you should find that it is listed in /proc/net/decnet_dev and also
- that it appears as a directory in /proc/sys/net/decnet/conf/. The
- loopback device (lo) should also appear and is required to communicate
- within a node.
- - If you have any DECnet routers on your network, they should appear
- in /proc/net/decnet_neigh, otherwise this file will only contain the
- entry for the node itself (if it doesn't check to see if lo is up).
- - If you want to send to any node which is not listed in the
- /proc/net/decnet_neigh file, you'll need to set the default device
- to point to an Ethernet card with connection to a router. This is
- again done with the /proc/sys/net/decnet/default_device file.
- - Try starting a simple server and client, like the dnping/dnmirror
- over the loopback interface. With luck they should communicate.
- For this step and those after, you'll need the DECnet library
- which can be obtained from the above ftp sites as well as the
- actual utilities themselves.
- - If this seems to work, then try talking to a node on your local
- network, and see if you can obtain the same results.
- - At this point you are on your own... :-)
-
-6. How to send a bug report
-===========================
-
-If you've found a bug and want to report it, then there are several things
-you can do to help me work out exactly what it is that is wrong. Useful
-information (_most_ of which _is_ _essential_) includes:
-
- - What kernel version are you running ?
- - What version of the patch are you running ?
- - How far though the above set of tests can you get ?
- - What is in the /proc/decnet* files and /proc/sys/net/decnet/* files ?
- - Which services are you running ?
- - Which client caused the problem ?
- - How much data was being transferred ?
- - Was the network congested ?
- - How can the problem be reproduced ?
- - Can you use tcpdump to get a trace ? (N.B. Most (all?) versions of
- tcpdump don't understand how to dump DECnet properly, so including
- the hex listing of the packet contents is _essential_, usually the -x flag.
- You may also need to increase the length grabbed with the -s flag. The
- -e flag also provides very useful information (ethernet MAC addresses))
-
-7. MAC FAQ
-==========
-
-A quick FAQ on ethernet MAC addresses to explain how Linux and DECnet
-interact and how to get the best performance from your hardware.
-
-Ethernet cards are designed to normally only pass received network frames
-to a host computer when they are addressed to it, or to the broadcast address.
-
-Linux has an interface which allows the setting of extra addresses for
-an ethernet card to listen to. If the ethernet card supports it, the
-filtering operation will be done in hardware, if not the extra unwanted packets
-received will be discarded by the host computer. In the latter case,
-significant processor time and bus bandwidth can be used up on a busy
-network (see the NAPI documentation for a longer explanation of these
-effects).
-
-DECnet makes use of this interface to allow running DECnet on an ethernet
-card which has already been configured using TCP/IP (presumably using the
-built in MAC address of the card, as usual) and/or to allow multiple DECnet
-addresses on each physical interface. If you do this, be aware that if your
-ethernet card doesn't support perfect hashing in its MAC address filter
-then your computer will be doing more work than required. Some cards
-will simply set themselves into promiscuous mode in order to receive
-packets from the DECnet specified addresses. So if you have one of these
-cards its better to set the MAC address of the card as described above
-to gain the best efficiency. Better still is to use a card which supports
-NAPI as well.
-
-
-8. Mailing list
-===============
-
-If you are keen to get involved in development, or want to ask questions
-about configuration, or even just report bugs, then there is a mailing
-list that you can join, details are at:
-
-http://sourceforge.net/mail/?group_id=4993
-
-9. Legal Info
-=============
-
-The Linux DECnet project team have placed their code under the GPL. The
-software is provided "as is" and without warranty express or implied.
-DECnet is a trademark of Compaq. This software is not a product of
-Compaq. We acknowledge the help of people at Compaq in providing extra
-documentation above and beyond what was previously publicly available.
-
-Steve Whitehouse <SteveW@ACM.org>
-
diff --git a/Documentation/networking/device_drivers/can/can327.rst b/Documentation/networking/device_drivers/can/can327.rst
new file mode 100644
index 000000000000..b87bfbe5d51c
--- /dev/null
+++ b/Documentation/networking/device_drivers/can/can327.rst
@@ -0,0 +1,331 @@
+.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+
+can327: ELM327 driver for Linux SocketCAN
+==========================================
+
+Authors
+--------
+
+Max Staudt <max@enpas.org>
+
+
+
+Motivation
+-----------
+
+This driver aims to lower the initial cost for hackers interested in
+working with CAN buses.
+
+CAN adapters are expensive, few, and far between.
+ELM327 interfaces are cheap and plentiful.
+Let's use ELM327s as CAN adapters.
+
+
+
+Introduction
+-------------
+
+This driver is an effort to turn abundant ELM327 based OBD interfaces
+into full fledged (as far as possible) CAN interfaces.
+
+Since the ELM327 was never meant to be a stand alone CAN controller,
+the driver has to switch between its modes as quickly as possible in
+order to fake full-duplex operation.
+
+As such, can327 is a best effort driver. However, this is more than
+enough to implement simple request-response protocols (such as OBD II),
+and to monitor broadcast messages on a bus (such as in a vehicle).
+
+Most ELM327s come as nondescript serial devices, attached via USB or
+Bluetooth. The driver cannot recognize them by itself, and as such it
+is up to the user to attach it in form of a TTY line discipline
+(similar to PPP, SLIP, slcan, ...).
+
+This driver is meant for ELM327 versions 1.4b and up, see below for
+known limitations in older controllers and clones.
+
+
+
+Data sheet
+-----------
+
+The official data sheets can be found at ELM electronics' home page:
+
+ https://www.elmelectronics.com/
+
+
+
+How to attach the line discipline
+----------------------------------
+
+Every ELM327 chip is factory programmed to operate at a serial setting
+of 38400 baud/s, 8 data bits, no parity, 1 stopbit.
+
+If you have kept this default configuration, the line discipline can
+be attached on a command prompt as follows::
+
+ sudo ldattach \
+ --debug \
+ --speed 38400 \
+ --eightbits \
+ --noparity \
+ --onestopbit \
+ --iflag -ICRNL,INLCR,-IXOFF \
+ 30 \
+ /dev/ttyUSB0
+
+To change the ELM327's serial settings, please refer to its data
+sheet. This needs to be done before attaching the line discipline.
+
+Once the ldisc is attached, the CAN interface starts out unconfigured.
+Set the speed before starting it::
+
+ # The interface needs to be down to change parameters
+ sudo ip link set can0 down
+ sudo ip link set can0 type can bitrate 500000
+ sudo ip link set can0 up
+
+500000 bit/s is a common rate for OBD-II diagnostics.
+If you're connecting straight to a car's OBD port, this is the speed
+that most cars (but not all!) expect.
+
+After this, you can set out as usual with candump, cansniffer, etc.
+
+
+
+How to check the controller version
+------------------------------------
+
+Use a terminal program to attach to the controller.
+
+After issuing the "``AT WS``" command, the controller will respond with
+its version::
+
+ >AT WS
+
+
+ ELM327 v1.4b
+
+ >
+
+Note that clones may claim to be any version they like.
+It is not indicative of their actual feature set.
+
+
+
+
+Communication example
+----------------------
+
+This is a short and incomplete introduction on how to talk to an ELM327.
+It is here to guide understanding of the controller's and the driver's
+limitation (listed below) as well as manual testing.
+
+
+The ELM327 has two modes:
+
+- Command mode
+- Reception mode
+
+In command mode, it expects one command per line, terminated by CR.
+By default, the prompt is a "``>``", after which a command can be
+entered::
+
+ >ATE1
+ OK
+ >
+
+The init script in the driver switches off several configuration options
+that are only meaningful in the original OBD scenario the chip is meant
+for, and are actually a hindrance for can327.
+
+
+When a command is not recognized, such as by an older version of the
+ELM327, a question mark is printed as a response instead of OK::
+
+ >ATUNKNOWN
+ ?
+ >
+
+At present, can327 does not evaluate this response. See the section
+below on known limitations for details.
+
+
+When a CAN frame is to be sent, the target address is configured, after
+which the frame is sent as a command that consists of the data's hex
+dump::
+
+ >ATSH123
+ OK
+ >DEADBEEF12345678
+ OK
+ >
+
+The above interaction sends the SFF frame "``DE AD BE EF 12 34 56 78``"
+with (11 bit) CAN ID ``0x123``.
+For this to function, the controller must be configured for SFF sending
+mode (using "``AT PB``", see code or datasheet).
+
+
+Once a frame has been sent and wait-for-reply mode is on (``ATR1``,
+configured on ``listen-only=off``), or when the reply timeout expires
+and the driver sets the controller into monitoring mode (``ATMA``),
+the ELM327 will send one line for each received CAN frame, consisting
+of CAN ID, DLC, and data::
+
+ 123 8 DEADBEEF12345678
+
+For EFF (29 bit) CAN frames, the address format is slightly different,
+which can327 uses to tell the two apart::
+
+ 12 34 56 78 8 DEADBEEF12345678
+
+The ELM327 will receive both SFF and EFF frames - the current CAN
+config (``ATPB``) does not matter.
+
+
+If the ELM327's internal UART sending buffer runs full, it will abort
+the monitoring mode, print "BUFFER FULL" and drop back into command
+mode. Note that in this case, unlike with other error messages, the
+error message may appear on the same line as the last (usually
+incomplete) data frame::
+
+ 12 34 56 78 8 DEADBEEF123 BUFFER FULL
+
+
+
+Known limitations of the controller
+------------------------------------
+
+- Clone devices ("v1.5" and others)
+
+ Sending RTR frames is not supported and will be dropped silently.
+
+ Receiving RTR with DLC 8 will appear to be a regular frame with
+ the last received frame's DLC and payload.
+
+ "``AT CSM``" (CAN Silent Monitoring, i.e. don't send CAN ACKs) is
+ not supported, and is hard coded to ON. Thus, frames are not ACKed
+ while listening: "``AT MA``" (Monitor All) will always be "silent".
+ However, immediately after sending a frame, the ELM327 will be in
+ "receive reply" mode, in which it *does* ACK any received frames.
+ Once the bus goes silent, or an error occurs (such as BUFFER FULL),
+ or the receive reply timeout runs out, the ELM327 will end reply
+ reception mode on its own and can327 will fall back to "``AT MA``"
+ in order to keep monitoring the bus.
+
+ Other limitations may apply, depending on the clone and the quality
+ of its firmware.
+
+
+- All versions
+
+ No full duplex operation is supported. The driver will switch
+ between input/output mode as quickly as possible.
+
+ The length of outgoing RTR frames cannot be set. In fact, some
+ clones (tested with one identifying as "``v1.5``") are unable to
+ send RTR frames at all.
+
+ We don't have a way to get real-time notifications on CAN errors.
+ While there is a command (``AT CS``) to retrieve some basic stats,
+ we don't poll it as it would force us to interrupt reception mode.
+
+
+- Versions prior to 1.4b
+
+ These versions do not send CAN ACKs when in monitoring mode (AT MA).
+ However, they do send ACKs while waiting for a reply immediately
+ after sending a frame. The driver maximizes this time to make the
+ controller as useful as possible.
+
+ Starting with version 1.4b, the ELM327 supports the "``AT CSM``"
+ command, and the "listen-only" CAN option will take effect.
+
+
+- Versions prior to 1.4
+
+ These chips do not support the "``AT PB``" command, and thus cannot
+ change bitrate or SFF/EFF mode on-the-fly. This will have to be
+ programmed by the user before attaching the line discipline. See the
+ data sheet for details.
+
+
+- Versions prior to 1.3
+
+ These chips cannot be used at all with can327. They do not support
+ the "``AT D1``" command, which is necessary to avoid parsing conflicts
+ on incoming data, as well as distinction of RTR frame lengths.
+
+ Specifically, this allows for easy distinction of SFF and EFF
+ frames, and to check whether frames are complete. While it is possible
+ to deduce the type and length from the length of the line the ELM327
+ sends us, this method fails when the ELM327's UART output buffer
+ overruns. It may abort sending in the middle of the line, which will
+ then be mistaken for something else.
+
+
+
+Known limitations of the driver
+--------------------------------
+
+- No 8/7 timing.
+
+ ELM327 can only set CAN bitrates that are of the form 500000/n, where
+ n is an integer divisor.
+ However there is an exception: With a separate flag, it may set the
+ speed to be 8/7 of the speed indicated by the divisor.
+ This mode is not currently implemented.
+
+- No evaluation of command responses.
+
+ The ELM327 will reply with OK when a command is understood, and with ?
+ when it is not. The driver does not currently check this, and simply
+ assumes that the chip understands every command.
+ The driver is built such that functionality degrades gracefully
+ nevertheless. See the section on known limitations of the controller.
+
+- No use of hardware CAN ID filtering
+
+ An ELM327's UART sending buffer will easily overflow on heavy CAN bus
+ load, resulting in the "``BUFFER FULL``" message. Using the hardware
+ filters available through "``AT CF xxx``" and "``AT CM xxx``" would be
+ helpful here, however SocketCAN does not currently provide a facility
+ to make use of such hardware features.
+
+
+
+Rationale behind the chosen configuration
+------------------------------------------
+
+``AT E1``
+ Echo on
+
+ We need this to be able to get a prompt reliably.
+
+``AT S1``
+ Spaces on
+
+ We need this to distinguish 11/29 bit CAN addresses received.
+
+ Note:
+ We can usually do this using the line length (odd/even),
+ but this fails if the line is not transmitted fully to
+ the host (BUFFER FULL).
+
+``AT D1``
+ DLC on
+
+ We need this to tell the "length" of RTR frames.
+
+
+
+A note on CAN bus termination
+------------------------------
+
+Your adapter may have resistors soldered in which are meant to terminate
+the bus. This is correct when it is plugged into a OBD-II socket, but
+not helpful when trying to tap into the middle of an existing CAN bus.
+
+If communications don't work with the adapter connected, check for the
+termination resistors on its PCB and try removing them.
diff --git a/Documentation/networking/device_drivers/can/freescale/flexcan.rst b/Documentation/networking/device_drivers/can/freescale/flexcan.rst
index 4e3eec6cecd2..106cd2890135 100644
--- a/Documentation/networking/device_drivers/can/freescale/flexcan.rst
+++ b/Documentation/networking/device_drivers/can/freescale/flexcan.rst
@@ -5,7 +5,7 @@ Flexcan CAN Controller driver
=============================
Authors: Marc Kleine-Budde <mkl@pengutronix.de>,
-Dario Binacchi <dario.binacchi@amarula.solutions.com>
+Dario Binacchi <dario.binacchi@amarulasolutions.com>
On/off RTR frames reception
===========================
diff --git a/Documentation/networking/device_drivers/can/index.rst b/Documentation/networking/device_drivers/can/index.rst
index 0c3cc6633559..6a8a4f74fa26 100644
--- a/Documentation/networking/device_drivers/can/index.rst
+++ b/Documentation/networking/device_drivers/can/index.rst
@@ -10,6 +10,7 @@ Contents:
.. toctree::
:maxdepth: 2
+ can327
ctu/ctucanfd-driver
freescale/flexcan
diff --git a/Documentation/networking/device_drivers/ethernet/index.rst b/Documentation/networking/device_drivers/ethernet/index.rst
index 4e06684d079b..5196905582c5 100644
--- a/Documentation/networking/device_drivers/ethernet/index.rst
+++ b/Documentation/networking/device_drivers/ethernet/index.rst
@@ -42,7 +42,6 @@ Contents:
mellanox/mlx5
microsoft/netvsc
neterion/s2io
- neterion/vxge
netronome/nfp
pensando/ionic
smsc/smc9
@@ -52,6 +51,8 @@ Contents:
ti/am65_nuss_cpsw_switchdev
ti/tlan
toshiba/spider_net
+ wangxun/txgbe
+ wangxun/ngbe
.. only:: subproject and html
diff --git a/Documentation/networking/device_drivers/ethernet/intel/ice.rst b/Documentation/networking/device_drivers/ethernet/intel/ice.rst
index 67b7a701ce9e..dc2e60ced927 100644
--- a/Documentation/networking/device_drivers/ethernet/intel/ice.rst
+++ b/Documentation/networking/device_drivers/ethernet/intel/ice.rst
@@ -901,6 +901,15 @@ To enable/disable UDP Segmentation Offload, issue the following command::
# ethtool -K <ethX> tx-udp-segmentation [off|on]
+GNSS module
+-----------
+Allows user to read messages from the GNSS module and write supported commands.
+If the module is physically present, driver creates 2 TTYs for each supported
+device in /dev, ttyGNSS_<device>:<function>_0 and _1. First one (_0) is RW and
+the second one is RO.
+The protocol of write commands is dependent on the GNSS module as the driver
+writes raw bytes from the TTY to the GNSS i2c. Please refer to the module
+documentation for details.
Performance Optimization
========================
diff --git a/Documentation/networking/device_drivers/ethernet/neterion/vxge.rst b/Documentation/networking/device_drivers/ethernet/neterion/vxge.rst
deleted file mode 100644
index 589c6b15c63d..000000000000
--- a/Documentation/networking/device_drivers/ethernet/neterion/vxge.rst
+++ /dev/null
@@ -1,115 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-==============================================================================
-Neterion's (Formerly S2io) X3100 Series 10GbE PCIe Server Adapter Linux driver
-==============================================================================
-
-.. Contents
-
- 1) Introduction
- 2) Features supported
- 3) Configurable driver parameters
- 4) Troubleshooting
-
-1. Introduction
-===============
-
-This Linux driver supports all Neterion's X3100 series 10 GbE PCIe I/O
-Virtualized Server adapters.
-
-The X3100 series supports four modes of operation, configurable via
-firmware:
-
- - Single function mode
- - Multi function mode
- - SRIOV mode
- - MRIOV mode
-
-The functions share a 10GbE link and the pci-e bus, but hardly anything else
-inside the ASIC. Features like independent hw reset, statistics, bandwidth/
-priority allocation and guarantees, GRO, TSO, interrupt moderation etc are
-supported independently on each function.
-
-(See below for a complete list of features supported for both IPv4 and IPv6)
-
-2. Features supported
-=====================
-
-i) Single function mode (up to 17 queues)
-
-ii) Multi function mode (up to 17 functions)
-
-iii) PCI-SIG's I/O Virtualization
-
- - Single Root mode: v1.0 (up to 17 functions)
- - Multi-Root mode: v1.0 (up to 17 functions)
-
-iv) Jumbo frames
-
- X3100 Series supports MTU up to 9600 bytes, modifiable using
- ip command.
-
-v) Offloads supported: (Enabled by default)
-
- - Checksum offload (TCP/UDP/IP) on transmit and receive paths
- - TCP Segmentation Offload (TSO) on transmit path
- - Generic Receive Offload (GRO) on receive path
-
-vi) MSI-X: (Enabled by default)
-
- Resulting in noticeable performance improvement (up to 7% on certain
- platforms).
-
-vii) NAPI: (Enabled by default)
-
- For better Rx interrupt moderation.
-
-viii)RTH (Receive Traffic Hash): (Enabled by default)
-
- Receive side steering for better scaling.
-
-ix) Statistics
-
- Comprehensive MAC-level and software statistics displayed using
- "ethtool -S" option.
-
-x) Multiple hardware queues: (Enabled by default)
-
- Up to 17 hardware based transmit and receive data channels, with
- multiple steering options (transmit multiqueue enabled by default).
-
-3) Configurable driver parameters:
-----------------------------------
-
-i) max_config_dev
- Specifies maximum device functions to be enabled.
-
- Valid range: 1-8
-
-ii) max_config_port
- Specifies number of ports to be enabled.
-
- Valid range: 1,2
-
- Default: 1
-
-iii) max_config_vpath
- Specifies maximum VPATH(s) configured for each device function.
-
- Valid range: 1-17
-
-iv) vlan_tag_strip
- Enables/disables vlan tag stripping from all received tagged frames that
- are not replicated at the internal L2 switch.
-
- Valid range: 0,1 (disabled, enabled respectively)
-
- Default: 1
-
-v) addr_learn_en
- Enable learning the mac address of the guest OS interface in
- virtualization environment.
-
- Valid range: 0,1 (disabled, enabled respectively)
-
- Default: 0
diff --git a/Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst b/Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst
new file mode 100644
index 000000000000..43a02f9943e1
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst
@@ -0,0 +1,14 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================================================
+Linux Base Driver for WangXun(R) Gigabit PCI Express Adapters
+=============================================================
+
+WangXun Gigabit Linux driver.
+Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+
+Support
+=======
+ If you have problems with the software or hardware, please contact our
+ customer support team via email at nic-support@net-swift.com or check our website
+ at https://www.net-swift.com
diff --git a/Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst b/Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst
new file mode 100644
index 000000000000..eaa87dbe8848
--- /dev/null
+++ b/Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst
@@ -0,0 +1,20 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================================================================
+Linux Base Driver for WangXun(R) 10 Gigabit PCI Express Adapters
+================================================================
+
+WangXun 10 Gigabit Linux driver.
+Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd.
+
+
+Contents
+========
+
+- Support
+
+
+Support
+=======
+If you got any problem, contact Wangxun support team via support@trustnetic.com
+and Cc: netdev.
diff --git a/Documentation/networking/devlink/devlink-selftests.rst b/Documentation/networking/devlink/devlink-selftests.rst
new file mode 100644
index 000000000000..c0aa1f3aef0d
--- /dev/null
+++ b/Documentation/networking/devlink/devlink-selftests.rst
@@ -0,0 +1,38 @@
+.. SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+=================
+Devlink Selftests
+=================
+
+The ``devlink-selftests`` API allows executing selftests on the device.
+
+Tests Mask
+==========
+The ``devlink-selftests`` command should be run with a mask indicating
+the tests to be executed.
+
+Tests Description
+=================
+The following is a list of tests that drivers may execute.
+
+.. list-table:: List of tests
+ :widths: 5 90
+
+ * - Name
+ - Description
+ * - ``DEVLINK_SELFTEST_FLASH``
+ - Devices may have the firmware on non-volatile memory on the board, e.g.
+ flash. This particular test helps to run a flash selftest on the device.
+ Implementation of the test is left to the driver/firmware.
+
+example usage
+-------------
+
+.. code:: shell
+
+ # Query selftests supported on the devlink device
+ $ devlink dev selftests show DEV
+ # Query selftests supported on all devlink devices
+ $ devlink dev selftests show
+ # Executes selftests on the device
+ $ devlink dev selftests run DEV id flash
diff --git a/Documentation/networking/devlink/ice.rst b/Documentation/networking/devlink/ice.rst
index 8c082b139bbd..0c89ceb8986d 100644
--- a/Documentation/networking/devlink/ice.rst
+++ b/Documentation/networking/devlink/ice.rst
@@ -139,6 +139,42 @@ EMP firmware image.
The driver does not currently support reloading the driver via
``DEVLINK_RELOAD_ACTION_DRIVER_REINIT``.
+Port split
+==========
+
+The ``ice`` driver supports port splitting only for port 0, as the FW has
+a predefined set of available port split options for the whole device.
+
+A system reboot is required for port split to be applied.
+
+The following command will select the port split option with 4 ports:
+
+.. code:: shell
+
+ $ devlink port split pci/0000:16:00.0/0 count 4
+
+The list of all available port options will be printed to dynamic debug after
+each ``split`` and ``unsplit`` command. The first option is the default.
+
+.. code:: shell
+
+ ice 0000:16:00.0: Available port split options and max port speeds (Gbps):
+ ice 0000:16:00.0: Status Split Quad 0 Quad 1
+ ice 0000:16:00.0: count L0 L1 L2 L3 L4 L5 L6 L7
+ ice 0000:16:00.0: Active 2 100 - - - 100 - - -
+ ice 0000:16:00.0: 2 50 - 50 - - - - -
+ ice 0000:16:00.0: Pending 4 25 25 25 25 - - - -
+ ice 0000:16:00.0: 4 25 25 - - 25 25 - -
+ ice 0000:16:00.0: 8 10 10 10 10 10 10 10 10
+ ice 0000:16:00.0: 1 100 - - - - - - -
+
+There could be multiple FW port options with the same port split count. When
+the same port split count request is issued again, the next FW port option with
+the same port split count will be selected.
+
+``devlink port unsplit`` will select the option with a split count of 1. If
+there is no FW option available with split count 1, you will receive an error.
+
Regions
=======
diff --git a/Documentation/networking/devlink/index.rst b/Documentation/networking/devlink/index.rst
index 850715512293..4b653d040627 100644
--- a/Documentation/networking/devlink/index.rst
+++ b/Documentation/networking/devlink/index.rst
@@ -13,10 +13,8 @@ new APIs prefixed by ``devl_*``. The older APIs handle all the locking
in devlink core, but don't allow registration of most sub-objects once
the main devlink object is itself registered. The newer ``devl_*`` APIs assume
the devlink instance lock is already held. Drivers can take the instance
-lock by calling ``devl_lock()``. It is also held in most of the callbacks.
-Eventually all callbacks will be invoked under the devlink instance lock,
-refer to the use of the ``DEVLINK_NL_FLAG_NO_LOCK`` flag in devlink core
-to find out which callbacks are not converted, yet.
+lock by calling ``devl_lock()``. It is also held all callbacks of devlink
+netlink commands.
Drivers are encouraged to use the devlink instance lock for their own needs.
@@ -38,6 +36,7 @@ general.
devlink-region
devlink-resource
devlink-reload
+ devlink-selftests
devlink-trap
devlink-linecard
diff --git a/Documentation/networking/devlink/mlxsw.rst b/Documentation/networking/devlink/mlxsw.rst
index cf857cb4ba8f..433962225bd4 100644
--- a/Documentation/networking/devlink/mlxsw.rst
+++ b/Documentation/networking/devlink/mlxsw.rst
@@ -58,6 +58,30 @@ The ``mlxsw`` driver reports the following versions
- running
- Three digit firmware version
+Line card auxiliary device info versions
+========================================
+
+The ``mlxsw`` driver reports the following versions for line card auxiliary device
+
+.. list-table:: devlink info versions implemented
+ :widths: 5 5 90
+
+ * - Name
+ - Type
+ - Description
+ * - ``hw.revision``
+ - fixed
+ - The hardware revision for this line card
+ * - ``ini.version``
+ - running
+ - Version of line card INI loaded
+ * - ``fw.psid``
+ - fixed
+ - Line card device PSID
+ * - ``fw.version``
+ - running
+ - Three digit firmware version of line card device
+
Driver-specific Traps
=====================
diff --git a/Documentation/networking/devlink/netdevsim.rst b/Documentation/networking/devlink/netdevsim.rst
index 8a292fb5aaea..ec5e6d79b2e2 100644
--- a/Documentation/networking/devlink/netdevsim.rst
+++ b/Documentation/networking/devlink/netdevsim.rst
@@ -67,7 +67,7 @@ The ``netdevsim`` driver supports rate objects management, which includes:
- setting tx_share and tx_max rate values for any rate object type;
- setting parent node for any rate object type.
-Rate nodes and it's parameters are exposed in ``netdevsim`` debugfs in RO mode.
+Rate nodes and their parameters are exposed in ``netdevsim`` debugfs in RO mode.
For example created rate node with name ``some_group``:
.. code:: shell
diff --git a/Documentation/networking/driver.rst b/Documentation/networking/driver.rst
index c8f59dbda46f..64f7236ff10b 100644
--- a/Documentation/networking/driver.rst
+++ b/Documentation/networking/driver.rst
@@ -8,7 +8,7 @@ Transmit path guidelines:
1) The ndo_start_xmit method must not return NETDEV_TX_BUSY under
any normal circumstances. It is considered a hard error unless
- there is no way your device can tell ahead of time when it's
+ there is no way your device can tell ahead of time when its
transmit function will become busy.
Instead it must maintain the queue properly. For example,
diff --git a/Documentation/networking/dsa/configuration.rst b/Documentation/networking/dsa/configuration.rst
index 2b08f1a772d3..827701f8cbfe 100644
--- a/Documentation/networking/dsa/configuration.rst
+++ b/Documentation/networking/dsa/configuration.rst
@@ -49,6 +49,9 @@ In this documentation the following Ethernet interfaces are used:
*eth0*
the master interface
+*eth1*
+ another master interface
+
*lan1*
a slave interface
@@ -360,3 +363,96 @@ the ``self`` flag) has been removed. This results in the following changes:
Script writers are therefore encouraged to use the ``master static`` set of
flags when working with bridge FDB entries on DSA switch interfaces.
+
+Affinity of user ports to CPU ports
+-----------------------------------
+
+Typically, DSA switches are attached to the host via a single Ethernet
+interface, but in cases where the switch chip is discrete, the hardware design
+may permit the use of 2 or more ports connected to the host, for an increase in
+termination throughput.
+
+DSA can make use of multiple CPU ports in two ways. First, it is possible to
+statically assign the termination traffic associated with a certain user port
+to be processed by a certain CPU port. This way, user space can implement
+custom policies of static load balancing between user ports, by spreading the
+affinities according to the available CPU ports.
+
+Secondly, it is possible to perform load balancing between CPU ports on a per
+packet basis, rather than statically assigning user ports to CPU ports.
+This can be achieved by placing the DSA masters under a LAG interface (bonding
+or team). DSA monitors this operation and creates a mirror of this software LAG
+on the CPU ports facing the physical DSA masters that constitute the LAG slave
+devices.
+
+To make use of multiple CPU ports, the firmware (device tree) description of
+the switch must mark all the links between CPU ports and their DSA masters
+using the ``ethernet`` reference/phandle. At startup, only a single CPU port
+and DSA master will be used - the numerically first port from the firmware
+description which has an ``ethernet`` property. It is up to the user to
+configure the system for the switch to use other masters.
+
+DSA uses the ``rtnl_link_ops`` mechanism (with a "dsa" ``kind``) to allow
+changing the DSA master of a user port. The ``IFLA_DSA_MASTER`` u32 netlink
+attribute contains the ifindex of the master device that handles each slave
+device. The DSA master must be a valid candidate based on firmware node
+information, or a LAG interface which contains only slaves which are valid
+candidates.
+
+Using iproute2, the following manipulations are possible:
+
+ .. code-block:: sh
+
+ # See the DSA master in current use
+ ip -d link show dev swp0
+ (...)
+ dsa master eth0
+
+ # Static CPU port distribution
+ ip link set swp0 type dsa master eth1
+ ip link set swp1 type dsa master eth0
+ ip link set swp2 type dsa master eth1
+ ip link set swp3 type dsa master eth0
+
+ # CPU ports in LAG, using explicit assignment of the DSA master
+ ip link add bond0 type bond mode balance-xor && ip link set bond0 up
+ ip link set eth1 down && ip link set eth1 master bond0
+ ip link set swp0 type dsa master bond0
+ ip link set swp1 type dsa master bond0
+ ip link set swp2 type dsa master bond0
+ ip link set swp3 type dsa master bond0
+ ip link set eth0 down && ip link set eth0 master bond0
+ ip -d link show dev swp0
+ (...)
+ dsa master bond0
+
+ # CPU ports in LAG, relying on implicit migration of the DSA master
+ ip link add bond0 type bond mode balance-xor && ip link set bond0 up
+ ip link set eth0 down && ip link set eth0 master bond0
+ ip link set eth1 down && ip link set eth1 master bond0
+ ip -d link show dev swp0
+ (...)
+ dsa master bond0
+
+Notice that in the case of CPU ports under a LAG, the use of the
+``IFLA_DSA_MASTER`` netlink attribute is not strictly needed, but rather, DSA
+reacts to the ``IFLA_MASTER`` attribute change of its present master (``eth0``)
+and migrates all user ports to the new upper of ``eth0``, ``bond0``. Similarly,
+when ``bond0`` is destroyed using ``RTM_DELLINK``, DSA migrates the user ports
+that were assigned to this interface to the first physical DSA master which is
+eligible, based on the firmware description (it effectively reverts to the
+startup configuration).
+
+In a setup with more than 2 physical CPU ports, it is therefore possible to mix
+static user to CPU port assignment with LAG between DSA masters. It is not
+possible to statically assign a user port towards a DSA master that has any
+upper interfaces (this includes LAG devices - the master must always be the LAG
+in this case).
+
+Live changing of the DSA master (and thus CPU port) affinity of a user port is
+permitted, in order to allow dynamic redistribution in response to traffic.
+
+Physical DSA masters are allowed to join and leave at any time a LAG interface
+used as a DSA master; however, DSA will reject a LAG interface as a valid
+candidate for being a DSA master unless it has at least one physical DSA master
+as a slave device.
diff --git a/Documentation/networking/dsa/dsa.rst b/Documentation/networking/dsa/dsa.rst
index ed7fa76e7a40..a94ddf83348a 100644
--- a/Documentation/networking/dsa/dsa.rst
+++ b/Documentation/networking/dsa/dsa.rst
@@ -303,6 +303,20 @@ These frames are then queued for transmission using the master network device
Ethernet switch will be able to process these incoming frames from the
management interface and deliver them to the physical switch port.
+When using multiple CPU ports, it is possible to stack a LAG (bonding/team)
+device between the DSA slave devices and the physical DSA masters. The LAG
+device is thus also a DSA master, but the LAG slave devices continue to be DSA
+masters as well (just with no user port assigned to them; this is needed for
+recovery in case the LAG DSA master disappears). Thus, the data path of the LAG
+DSA master is used asymmetrically. On RX, the ``ETH_P_XDSA`` handler, which
+calls ``dsa_switch_rcv()``, is invoked early (on the physical DSA master;
+LAG slave). Therefore, the RX data path of the LAG DSA master is not used.
+On the other hand, TX takes place linearly: ``dsa_slave_xmit`` calls
+``dsa_enqueue_skb``, which calls ``dev_queue_xmit`` towards the LAG DSA master.
+The latter calls ``dev_queue_xmit`` towards one physical DSA master or the
+other, and in both cases, the packet exits the system through a hardware path
+towards the switch.
+
Graphical representation
------------------------
@@ -503,26 +517,108 @@ per-port PHY specific details: interface connection, MDIO bus location, etc.
Driver development
==================
-DSA switch drivers need to implement a dsa_switch_ops structure which will
+DSA switch drivers need to implement a ``dsa_switch_ops`` structure which will
contain the various members described below.
-``register_switch_driver()`` registers this dsa_switch_ops in its internal list
-of drivers to probe for. ``unregister_switch_driver()`` does the exact opposite.
+Probing, registration and device lifetime
+-----------------------------------------
+
+DSA switches are regular ``device`` structures on buses (be they platform, SPI,
+I2C, MDIO or otherwise). The DSA framework is not involved in their probing
+with the device core.
+
+Switch registration from the perspective of a driver means passing a valid
+``struct dsa_switch`` pointer to ``dsa_register_switch()``, usually from the
+switch driver's probing function. The following members must be valid in the
+provided structure:
+
+- ``ds->dev``: will be used to parse the switch's OF node or platform data.
+
+- ``ds->num_ports``: will be used to create the port list for this switch, and
+ to validate the port indices provided in the OF node.
+
+- ``ds->ops``: a pointer to the ``dsa_switch_ops`` structure holding the DSA
+ method implementations.
+
+- ``ds->priv``: backpointer to a driver-private data structure which can be
+ retrieved in all further DSA method callbacks.
+
+In addition, the following flags in the ``dsa_switch`` structure may optionally
+be configured to obtain driver-specific behavior from the DSA core. Their
+behavior when set is documented through comments in ``include/net/dsa.h``.
+
+- ``ds->vlan_filtering_is_global``
+
+- ``ds->needs_standalone_vlan_filtering``
+
+- ``ds->configure_vlan_while_not_filtering``
+
+- ``ds->untag_bridge_pvid``
+
+- ``ds->assisted_learning_on_cpu_port``
+
+- ``ds->mtu_enforcement_ingress``
+
+- ``ds->fdb_isolation``
+
+Internally, DSA keeps an array of switch trees (group of switches) global to
+the kernel, and attaches a ``dsa_switch`` structure to a tree on registration.
+The tree ID to which the switch is attached is determined by the first u32
+number of the ``dsa,member`` property of the switch's OF node (0 if missing).
+The switch ID within the tree is determined by the second u32 number of the
+same OF property (0 if missing). Registering multiple switches with the same
+switch ID and tree ID is illegal and will cause an error. Using platform data,
+a single switch and a single switch tree is permitted.
-Unless requested differently by setting the priv_size member accordingly, DSA
-does not allocate any driver private context space.
+In case of a tree with multiple switches, probing takes place asymmetrically.
+The first N-1 callers of ``dsa_register_switch()`` only add their ports to the
+port list of the tree (``dst->ports``), each port having a backpointer to its
+associated switch (``dp->ds``). Then, these switches exit their
+``dsa_register_switch()`` call early, because ``dsa_tree_setup_routing_table()``
+has determined that the tree is not yet complete (not all ports referenced by
+DSA links are present in the tree's port list). The tree becomes complete when
+the last switch calls ``dsa_register_switch()``, and this triggers the effective
+continuation of initialization (including the call to ``ds->ops->setup()``) for
+all switches within that tree, all as part of the calling context of the last
+switch's probe function.
+
+The opposite of registration takes place when calling ``dsa_unregister_switch()``,
+which removes a switch's ports from the port list of the tree. The entire tree
+is torn down when the first switch unregisters.
+
+It is mandatory for DSA switch drivers to implement the ``shutdown()`` callback
+of their respective bus, and call ``dsa_switch_shutdown()`` from it (a minimal
+version of the full teardown performed by ``dsa_unregister_switch()``).
+The reason is that DSA keeps a reference on the master net device, and if the
+driver for the master device decides to unbind on shutdown, DSA's reference
+will block that operation from finalizing.
+
+Either ``dsa_switch_shutdown()`` or ``dsa_unregister_switch()`` must be called,
+but not both, and the device driver model permits the bus' ``remove()`` method
+to be called even if ``shutdown()`` was already called. Therefore, drivers are
+expected to implement a mutual exclusion method between ``remove()`` and
+``shutdown()`` by setting their drvdata to NULL after any of these has run, and
+checking whether the drvdata is NULL before proceeding to take any action.
+
+After ``dsa_switch_shutdown()`` or ``dsa_unregister_switch()`` was called, no
+further callbacks via the provided ``dsa_switch_ops`` may take place, and the
+driver may free the data structures associated with the ``dsa_switch``.
Switch configuration
--------------------
-- ``tag_protocol``: this is to indicate what kind of tagging protocol is supported,
- should be a valid value from the ``dsa_tag_protocol`` enum
+- ``get_tag_protocol``: this is to indicate what kind of tagging protocol is
+ supported, should be a valid value from the ``dsa_tag_protocol`` enum.
+ The returned information does not have to be static; the driver is passed the
+ CPU port number, as well as the tagging protocol of a possibly stacked
+ upstream switch, in case there are hardware limitations in terms of supported
+ tag formats.
-- ``probe``: probe routine which will be invoked by the DSA platform device upon
- registration to test for the presence/absence of a switch device. For MDIO
- devices, it is recommended to issue a read towards internal registers using
- the switch pseudo-PHY and return whether this is a supported device. For other
- buses, return a non-NULL string
+- ``change_tag_protocol``: when the default tagging protocol has compatibility
+ problems with the master or other issues, the driver may support changing it
+ at runtime, either through a device tree property or through sysfs. In that
+ case, further calls to ``get_tag_protocol`` should report the protocol in
+ current use.
- ``setup``: setup function for the switch, this function is responsible for setting
up the ``dsa_switch_ops`` private structure with all it needs: register maps,
@@ -535,7 +631,35 @@ Switch configuration
fully configured and ready to serve any kind of request. It is recommended
to issue a software reset of the switch during this setup function in order to
avoid relying on what a previous software agent such as a bootloader/firmware
- may have previously configured.
+ may have previously configured. The method responsible for undoing any
+ applicable allocations or operations done here is ``teardown``.
+
+- ``port_setup`` and ``port_teardown``: methods for initialization and
+ destruction of per-port data structures. It is mandatory for some operations
+ such as registering and unregistering devlink port regions to be done from
+ these methods, otherwise they are optional. A port will be torn down only if
+ it has been previously set up. It is possible for a port to be set up during
+ probing only to be torn down immediately afterwards, for example in case its
+ PHY cannot be found. In this case, probing of the DSA switch continues
+ without that particular port.
+
+- ``port_change_master``: method through which the affinity (association used
+ for traffic termination purposes) between a user port and a CPU port can be
+ changed. By default all user ports from a tree are assigned to the first
+ available CPU port that makes sense for them (most of the times this means
+ the user ports of a tree are all assigned to the same CPU port, except for H
+ topologies as described in commit 2c0b03258b8b). The ``port`` argument
+ represents the index of the user port, and the ``master`` argument represents
+ the new DSA master ``net_device``. The CPU port associated with the new
+ master can be retrieved by looking at ``struct dsa_port *cpu_dp =
+ master->dsa_ptr``. Additionally, the master can also be a LAG device where
+ all the slave devices are physical DSA masters. LAG DSA masters also have a
+ valid ``master->dsa_ptr`` pointer, however this is not unique, but rather a
+ duplicate of the first physical DSA master's (LAG slave) ``dsa_ptr``. In case
+ of a LAG DSA master, a further call to ``port_lag_join`` will be emitted
+ separately for the physical CPU ports associated with the physical DSA
+ masters, requesting them to create a hardware LAG associated with the LAG
+ interface.
PHY devices and link management
-------------------------------
@@ -635,26 +759,198 @@ Power management
``BR_STATE_DISABLED`` and propagating changes to the hardware if this port is
disabled while being a bridge member
+Address databases
+-----------------
+
+Switching hardware is expected to have a table for FDB entries, however not all
+of them are active at the same time. An address database is the subset (partition)
+of FDB entries that is active (can be matched by address learning on RX, or FDB
+lookup on TX) depending on the state of the port. An address database may
+occasionally be called "FID" (Filtering ID) in this document, although the
+underlying implementation may choose whatever is available to the hardware.
+
+For example, all ports that belong to a VLAN-unaware bridge (which is
+*currently* VLAN-unaware) are expected to learn source addresses in the
+database associated by the driver with that bridge (and not with other
+VLAN-unaware bridges). During forwarding and FDB lookup, a packet received on a
+VLAN-unaware bridge port should be able to find a VLAN-unaware FDB entry having
+the same MAC DA as the packet, which is present on another port member of the
+same bridge. At the same time, the FDB lookup process must be able to not find
+an FDB entry having the same MAC DA as the packet, if that entry points towards
+a port which is a member of a different VLAN-unaware bridge (and is therefore
+associated with a different address database).
+
+Similarly, each VLAN of each offloaded VLAN-aware bridge should have an
+associated address database, which is shared by all ports which are members of
+that VLAN, but not shared by ports belonging to different bridges that are
+members of the same VID.
+
+In this context, a VLAN-unaware database means that all packets are expected to
+match on it irrespective of VLAN ID (only MAC address lookup), whereas a
+VLAN-aware database means that packets are supposed to match based on the VLAN
+ID from the classified 802.1Q header (or the pvid if untagged).
+
+At the bridge layer, VLAN-unaware FDB entries have the special VID value of 0,
+whereas VLAN-aware FDB entries have non-zero VID values. Note that a
+VLAN-unaware bridge may have VLAN-aware (non-zero VID) FDB entries, and a
+VLAN-aware bridge may have VLAN-unaware FDB entries. As in hardware, the
+software bridge keeps separate address databases, and offloads to hardware the
+FDB entries belonging to these databases, through switchdev, asynchronously
+relative to the moment when the databases become active or inactive.
+
+When a user port operates in standalone mode, its driver should configure it to
+use a separate database called a port private database. This is different from
+the databases described above, and should impede operation as standalone port
+(packet in, packet out to the CPU port) as little as possible. For example,
+on ingress, it should not attempt to learn the MAC SA of ingress traffic, since
+learning is a bridging layer service and this is a standalone port, therefore
+it would consume useless space. With no address learning, the port private
+database should be empty in a naive implementation, and in this case, all
+received packets should be trivially flooded to the CPU port.
+
+DSA (cascade) and CPU ports are also called "shared" ports because they service
+multiple address databases, and the database that a packet should be associated
+to is usually embedded in the DSA tag. This means that the CPU port may
+simultaneously transport packets coming from a standalone port (which were
+classified by hardware in one address database), and from a bridge port (which
+were classified to a different address database).
+
+Switch drivers which satisfy certain criteria are able to optimize the naive
+configuration by removing the CPU port from the flooding domain of the switch,
+and just program the hardware with FDB entries pointing towards the CPU port
+for which it is known that software is interested in those MAC addresses.
+Packets which do not match a known FDB entry will not be delivered to the CPU,
+which will save CPU cycles required for creating an skb just to drop it.
+
+DSA is able to perform host address filtering for the following kinds of
+addresses:
+
+- Primary unicast MAC addresses of ports (``dev->dev_addr``). These are
+ associated with the port private database of the respective user port,
+ and the driver is notified to install them through ``port_fdb_add`` towards
+ the CPU port.
+
+- Secondary unicast and multicast MAC addresses of ports (addresses added
+ through ``dev_uc_add()`` and ``dev_mc_add()``). These are also associated
+ with the port private database of the respective user port.
+
+- Local/permanent bridge FDB entries (``BR_FDB_LOCAL``). These are the MAC
+ addresses of the bridge ports, for which packets must be terminated locally
+ and not forwarded. They are associated with the address database for that
+ bridge.
+
+- Static bridge FDB entries installed towards foreign (non-DSA) interfaces
+ present in the same bridge as some DSA switch ports. These are also
+ associated with the address database for that bridge.
+
+- Dynamically learned FDB entries on foreign interfaces present in the same
+ bridge as some DSA switch ports, only if ``ds->assisted_learning_on_cpu_port``
+ is set to true by the driver. These are associated with the address database
+ for that bridge.
+
+For various operations detailed below, DSA provides a ``dsa_db`` structure
+which can be of the following types:
+
+- ``DSA_DB_PORT``: the FDB (or MDB) entry to be installed or deleted belongs to
+ the port private database of user port ``db->dp``.
+- ``DSA_DB_BRIDGE``: the entry belongs to one of the address databases of bridge
+ ``db->bridge``. Separation between the VLAN-unaware database and the per-VID
+ databases of this bridge is expected to be done by the driver.
+- ``DSA_DB_LAG``: the entry belongs to the address database of LAG ``db->lag``.
+ Note: ``DSA_DB_LAG`` is currently unused and may be removed in the future.
+
+The drivers which act upon the ``dsa_db`` argument in ``port_fdb_add``,
+``port_mdb_add`` etc should declare ``ds->fdb_isolation`` as true.
+
+DSA associates each offloaded bridge and each offloaded LAG with a one-based ID
+(``struct dsa_bridge :: num``, ``struct dsa_lag :: id``) for the purposes of
+refcounting addresses on shared ports. Drivers may piggyback on DSA's numbering
+scheme (the ID is readable through ``db->bridge.num`` and ``db->lag.id`` or may
+implement their own.
+
+Only the drivers which declare support for FDB isolation are notified of FDB
+entries on the CPU port belonging to ``DSA_DB_PORT`` databases.
+For compatibility/legacy reasons, ``DSA_DB_BRIDGE`` addresses are notified to
+drivers even if they do not support FDB isolation. However, ``db->bridge.num``
+and ``db->lag.id`` are always set to 0 in that case (to denote the lack of
+isolation, for refcounting purposes).
+
+Note that it is not mandatory for a switch driver to implement physically
+separate address databases for each standalone user port. Since FDB entries in
+the port private databases will always point to the CPU port, there is no risk
+for incorrect forwarding decisions. In this case, all standalone ports may
+share the same database, but the reference counting of host-filtered addresses
+(not deleting the FDB entry for a port's MAC address if it's still in use by
+another port) becomes the responsibility of the driver, because DSA is unaware
+that the port databases are in fact shared. This can be achieved by calling
+``dsa_fdb_present_in_other_db()`` and ``dsa_mdb_present_in_other_db()``.
+The down side is that the RX filtering lists of each user port are in fact
+shared, which means that user port A may accept a packet with a MAC DA it
+shouldn't have, only because that MAC address was in the RX filtering list of
+user port B. These packets will still be dropped in software, however.
+
Bridge layer
------------
+Offloading the bridge forwarding plane is optional and handled by the methods
+below. They may be absent, return -EOPNOTSUPP, or ``ds->max_num_bridges`` may
+be non-zero and exceeded, and in this case, joining a bridge port is still
+possible, but the packet forwarding will take place in software, and the ports
+under a software bridge must remain configured in the same way as for
+standalone operation, i.e. have all bridging service functions (address
+learning etc) disabled, and send all received packets to the CPU port only.
+
+Concretely, a port starts offloading the forwarding plane of a bridge once it
+returns success to the ``port_bridge_join`` method, and stops doing so after
+``port_bridge_leave`` has been called. Offloading the bridge means autonomously
+learning FDB entries in accordance with the software bridge port's state, and
+autonomously forwarding (or flooding) received packets without CPU intervention.
+This is optional even when offloading a bridge port. Tagging protocol drivers
+are expected to call ``dsa_default_offload_fwd_mark(skb)`` for packets which
+have already been autonomously forwarded in the forwarding domain of the
+ingress switch port. DSA, through ``dsa_port_devlink_setup()``, considers all
+switch ports part of the same tree ID to be part of the same bridge forwarding
+domain (capable of autonomous forwarding to each other).
+
+Offloading the TX forwarding process of a bridge is a distinct concept from
+simply offloading its forwarding plane, and refers to the ability of certain
+driver and tag protocol combinations to transmit a single skb coming from the
+bridge device's transmit function to potentially multiple egress ports (and
+thereby avoid its cloning in software).
+
+Packets for which the bridge requests this behavior are called data plane
+packets and have ``skb->offload_fwd_mark`` set to true in the tag protocol
+driver's ``xmit`` function. Data plane packets are subject to FDB lookup,
+hardware learning on the CPU port, and do not override the port STP state.
+Additionally, replication of data plane packets (multicast, flooding) is
+handled in hardware and the bridge driver will transmit a single skb for each
+packet that may or may not need replication.
+
+When the TX forwarding offload is enabled, the tag protocol driver is
+responsible to inject packets into the data plane of the hardware towards the
+correct bridging domain (FID) that the port is a part of. The port may be
+VLAN-unaware, and in this case the FID must be equal to the FID used by the
+driver for its VLAN-unaware address database associated with that bridge.
+Alternatively, the bridge may be VLAN-aware, and in that case, it is guaranteed
+that the packet is also VLAN-tagged with the VLAN ID that the bridge processed
+this packet in. It is the responsibility of the hardware to untag the VID on
+the egress-untagged ports, or keep the tag on the egress-tagged ones.
+
- ``port_bridge_join``: bridge layer function invoked when a given switch port is
added to a bridge, this function should do what's necessary at the switch
level to permit the joining port to be added to the relevant logical
domain for it to ingress/egress traffic with other members of the bridge.
+ By setting the ``tx_fwd_offload`` argument to true, the TX forwarding process
+ of this bridge is also offloaded.
- ``port_bridge_leave``: bridge layer function invoked when a given switch port is
removed from a bridge, this function should do what's necessary at the
switch level to deny the leaving port from ingress/egress traffic from the
- remaining bridge members. When the port leaves the bridge, it should be aged
- out at the switch hardware for the switch to (re) learn MAC addresses behind
- this port.
+ remaining bridge members.
- ``port_stp_state_set``: bridge layer function invoked when a given switch port STP
state is computed by the bridge layer and should be propagated to switch
- hardware to forward/block/learn traffic. The switch driver is responsible for
- computing a STP state change based on current and asked parameters and perform
- the relevant ageing based on the intersection results
+ hardware to forward/block/learn traffic.
- ``port_bridge_flags``: bridge layer function invoked when a port must
configure its settings for e.g. flooding of unknown traffic or source address
@@ -667,21 +963,11 @@ Bridge layer
CPU port, and flooding towards the CPU port should also be enabled, due to a
lack of an explicit address filtering mechanism in the DSA core.
-- ``port_bridge_tx_fwd_offload``: bridge layer function invoked after
- ``port_bridge_join`` when a driver sets ``ds->num_fwd_offloading_bridges`` to
- a non-zero value. Returning success in this function activates the TX
- forwarding offload bridge feature for this port, which enables the tagging
- protocol driver to inject data plane packets towards the bridging domain that
- the port is a part of. Data plane packets are subject to FDB lookup, hardware
- learning on the CPU port, and do not override the port STP state.
- Additionally, replication of data plane packets (multicast, flooding) is
- handled in hardware and the bridge driver will transmit a single skb for each
- packet that needs replication. The method is provided as a configuration
- point for drivers that need to configure the hardware for enabling this
- feature.
-
-- ``port_bridge_tx_fwd_unoffload``: bridge layer function invoked when a driver
- leaves a bridge port which had the TX forwarding offload feature enabled.
+- ``port_fast_age``: bridge layer function invoked when flushing the
+ dynamically learned FDB entries on the port is necessary. This is called when
+ transitioning from an STP state where learning should take place to an STP
+ state where it shouldn't, or when leaving a bridge, or when address learning
+ is turned off via ``port_bridge_flags``.
Bridge VLAN filtering
---------------------
@@ -697,55 +983,44 @@ Bridge VLAN filtering
allowed.
- ``port_vlan_add``: bridge layer function invoked when a VLAN is configured
- (tagged or untagged) for the given switch port. If the operation is not
- supported by the hardware, this function should return ``-EOPNOTSUPP`` to
- inform the bridge code to fallback to a software implementation.
+ (tagged or untagged) for the given switch port. The CPU port becomes a member
+ of a VLAN only if a foreign bridge port is also a member of it (and
+ forwarding needs to take place in software), or the VLAN is installed to the
+ VLAN group of the bridge device itself, for termination purposes
+ (``bridge vlan add dev br0 vid 100 self``). VLANs on shared ports are
+ reference counted and removed when there is no user left. Drivers do not need
+ to manually install a VLAN on the CPU port.
- ``port_vlan_del``: bridge layer function invoked when a VLAN is removed from the
given switch port
-- ``port_vlan_dump``: bridge layer function invoked with a switchdev callback
- function that the driver has to call for each VLAN the given port is a member
- of. A switchdev object is used to carry the VID and bridge flags.
-
- ``port_fdb_add``: bridge layer function invoked when the bridge wants to install a
Forwarding Database entry, the switch hardware should be programmed with the
specified address in the specified VLAN Id in the forwarding database
- associated with this VLAN ID. If the operation is not supported, this
- function should return ``-EOPNOTSUPP`` to inform the bridge code to fallback to
- a software implementation.
-
-.. note:: VLAN ID 0 corresponds to the port private database, which, in the context
- of DSA, would be its port-based VLAN, used by the associated bridge device.
+ associated with this VLAN ID.
- ``port_fdb_del``: bridge layer function invoked when the bridge wants to remove a
Forwarding Database entry, the switch hardware should be programmed to delete
the specified MAC address from the specified VLAN ID if it was mapped into
this port forwarding database
-- ``port_fdb_dump``: bridge layer function invoked with a switchdev callback
- function that the driver has to call for each MAC address known to be behind
- the given port. A switchdev object is used to carry the VID and FDB info.
+- ``port_fdb_dump``: bridge bypass function invoked by ``ndo_fdb_dump`` on the
+ physical DSA port interfaces. Since DSA does not attempt to keep in sync its
+ hardware FDB entries with the software bridge, this method is implemented as
+ a means to view the entries visible on user ports in the hardware database.
+ The entries reported by this function have the ``self`` flag in the output of
+ the ``bridge fdb show`` command.
- ``port_mdb_add``: bridge layer function invoked when the bridge wants to install
- a multicast database entry. If the operation is not supported, this function
- should return ``-EOPNOTSUPP`` to inform the bridge code to fallback to a
- software implementation. The switch hardware should be programmed with the
+ a multicast database entry. The switch hardware should be programmed with the
specified address in the specified VLAN ID in the forwarding database
associated with this VLAN ID.
-.. note:: VLAN ID 0 corresponds to the port private database, which, in the context
- of DSA, would be its port-based VLAN, used by the associated bridge device.
-
- ``port_mdb_del``: bridge layer function invoked when the bridge wants to remove a
multicast database entry, the switch hardware should be programmed to delete
the specified MAC address from the specified VLAN ID if it was mapped into
this port forwarding database.
-- ``port_mdb_dump``: bridge layer function invoked with a switchdev callback
- function that the driver has to call for each MAC address known to be behind
- the given port. A switchdev object is used to carry the VID and MDB info.
-
Link aggregation
----------------
@@ -852,9 +1127,3 @@ capable hardware, but does not enforce a strict switch device driver model. On
the other DSA enforces a fairly strict device driver model, and deals with most
of the switch specific. At some point we should envision a merger between these
two subsystems and get the best of both worlds.
-
-Other hanging fruits
---------------------
-
-- allowing more than one CPU/management interface:
- http://comments.gmane.org/gmane.linux.network/365657
diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst
index dbca3e9ec782..d578b8bcd8a4 100644
--- a/Documentation/networking/ethtool-netlink.rst
+++ b/Documentation/networking/ethtool-netlink.rst
@@ -220,6 +220,8 @@ Userspace to kernel:
``ETHTOOL_MSG_PHC_VCLOCKS_GET`` get PHC virtual clocks info
``ETHTOOL_MSG_MODULE_SET`` set transceiver module parameters
``ETHTOOL_MSG_MODULE_GET`` get transceiver module parameters
+ ``ETHTOOL_MSG_PSE_SET`` set PSE parameters
+ ``ETHTOOL_MSG_PSE_GET`` get PSE parameters
===================================== =================================
Kernel to userspace:
@@ -260,6 +262,7 @@ Kernel to userspace:
``ETHTOOL_MSG_STATS_GET_REPLY`` standard statistics
``ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY`` PHC virtual clocks info
``ETHTOOL_MSG_MODULE_GET_REPLY`` transceiver module parameters
+ ``ETHTOOL_MSG_PSE_GET_REPLY`` PSE parameters
======================================== =================================
``GET`` requests are sent by userspace applications to retrieve device
@@ -426,6 +429,7 @@ Kernel response contents:
``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode
``ETHTOOL_A_LINKMODES_MASTER_SLAVE_STATE`` u8 Master/slave port state
+ ``ETHTOOL_A_LINKMODES_RATE_MATCHING`` u8 PHY rate matching
========================================== ====== ==========================
For ``ETHTOOL_A_LINKMODES_OURS``, value represents advertised modes and mask
@@ -449,6 +453,7 @@ Request contents:
``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s)
``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode
``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode
+ ``ETHTOOL_A_LINKMODES_RATE_MATCHING`` u8 PHY rate matching
``ETHTOOL_A_LINKMODES_LANES`` u32 lanes
========================================== ====== ==========================
@@ -1625,6 +1630,62 @@ For SFF-8636 modules, low power mode is forced by the host according to table
For CMIS modules, low power mode is forced by the host according to table 6-12
in revision 5.0 of the specification.
+PSE_GET
+=======
+
+Gets PSE attributes.
+
+Request contents:
+
+ ===================================== ====== ==========================
+ ``ETHTOOL_A_PSE_HEADER`` nested request header
+ ===================================== ====== ==========================
+
+Kernel response contents:
+
+ ====================================== ====== =============================
+ ``ETHTOOL_A_PSE_HEADER`` nested reply header
+ ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` u32 Operational state of the PoDL
+ PSE functions
+ ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` u32 power detection status of the
+ PoDL PSE.
+ ====================================== ====== =============================
+
+When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` attribute identifies
+the operational state of the PoDL PSE functions. The operational state of the
+PSE function can be changed using the ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL``
+action. This option is corresponding to ``IEEE 802.3-2018`` 30.15.1.1.2
+aPoDLPSEAdminState. Possible values are:
+
+.. kernel-doc:: include/uapi/linux/ethtool.h
+ :identifiers: ethtool_podl_pse_admin_state
+
+When set, the optional ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` attribute identifies
+the power detection status of the PoDL PSE. The status depend on internal PSE
+state machine and automatic PD classification support. This option is
+corresponding to ``IEEE 802.3-2018`` 30.15.1.1.3 aPoDLPSEPowerDetectionStatus.
+Possible values are:
+
+.. kernel-doc:: include/uapi/linux/ethtool.h
+ :identifiers: ethtool_podl_pse_pw_d_status
+
+PSE_SET
+=======
+
+Sets PSE parameters.
+
+Request contents:
+
+ ====================================== ====== =============================
+ ``ETHTOOL_A_PSE_HEADER`` nested request header
+ ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` u32 Control PoDL PSE Admin state
+ ====================================== ====== =============================
+
+When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` attribute is used
+to control PoDL PSE Admin functions. This option is implementing
+``IEEE 802.3-2018`` 30.15.1.2.1 acPoDLPSEAdminControl. See
+``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` for supported values.
+
Request translation
===================
diff --git a/Documentation/networking/index.rst b/Documentation/networking/index.rst
index 03b215bddde8..16a153bcc5fe 100644
--- a/Documentation/networking/index.rst
+++ b/Documentation/networking/index.rst
@@ -47,7 +47,6 @@ Contents:
cdc_mbim
dccp
dctcp
- decnet
dns_resolver
driver
eql
@@ -93,6 +92,7 @@ Contents:
radiotap-headers
rds
regulatory
+ representors
rxrpc
sctp
secid
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index b3a534ed0e7c..e7b3fa7bb3f7 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -202,6 +202,12 @@ neigh/default/unres_qlen - INTEGER
Default: 101
+neigh/default/interval_probe_time_ms - INTEGER
+ The probe interval for neighbor entries with NTF_MANAGED flag,
+ the min value is 1.
+
+ Default: 5000
+
mtu_expires - INTEGER
Time, in seconds, that cached PMTU information is kept.
@@ -630,6 +636,16 @@ tcp_recovery - INTEGER
Default: 0x1
+tcp_reflect_tos - BOOLEAN
+ For listening sockets, reuse the DSCP value of the initial SYN message
+ for outgoing packets. This allows to have both directions of a TCP
+ stream to use the same DSCP value, assuming DSCP remains unchanged for
+ the lifetime of the connection.
+
+ This options affects both IPv4 and IPv6.
+
+ Default: 0 (disabled)
+
tcp_reordering - INTEGER
Initial reordering level of packets in a TCP stream.
TCP stack can then dynamically adjust flow reordering level
@@ -1019,7 +1035,39 @@ tcp_limit_output_bytes - INTEGER
tcp_challenge_ack_limit - INTEGER
Limits number of Challenge ACK sent per second, as recommended
in RFC 5961 (Improving TCP's Robustness to Blind In-Window Attacks)
- Default: 1000
+ Note that this per netns rate limit can allow some side channel
+ attacks and probably should not be enabled.
+ TCP stack implements per TCP socket limits anyway.
+ Default: INT_MAX (unlimited)
+
+tcp_ehash_entries - INTEGER
+ Show the number of hash buckets for TCP sockets in the current
+ networking namespace.
+
+ A negative value means the networking namespace does not own its
+ hash buckets and shares the initial networking namespace's one.
+
+tcp_child_ehash_entries - INTEGER
+ Control the number of hash buckets for TCP sockets in the child
+ networking namespace, which must be set before clone() or unshare().
+
+ If the value is not 0, the kernel uses a value rounded up to 2^n
+ as the actual hash bucket size. 0 is a special value, meaning
+ the child networking namespace will share the initial networking
+ namespace's hash buckets.
+
+ Note that the child will use the global one in case the kernel
+ fails to allocate enough memory. In addition, the global hash
+ buckets are spread over available NUMA nodes, but the allocation
+ of the child hash table depends on the current process's NUMA
+ policy, which could result in performance differences.
+
+ Note also that the default value of tcp_max_tw_buckets and
+ tcp_max_syn_backlog depend on the hash bucket size.
+
+ Possible values: 0, 2^n (n: 0 - 24 (16Mi))
+
+ Default: 0
UDP variables
=============
@@ -1052,11 +1100,7 @@ udp_rmem_min - INTEGER
Default: 4K
udp_wmem_min - INTEGER
- Minimal size of send buffer used by UDP sockets in moderation.
- Each UDP socket is able to use the size for sending data, even if
- total pages of UDP sockets exceed udp_mem pressure. The unit is byte.
-
- Default: 4K
+ UDP does not have tx memory accounting and this tunable has no effect.
RAW variables
=============
@@ -1627,12 +1671,15 @@ arp_notify - BOOLEAN
or hardware address changes.
== ==========================================================
-arp_accept - BOOLEAN
- Define behavior for gratuitous ARP frames who's IP is not
- already present in the ARP table:
+arp_accept - INTEGER
+ Define behavior for accepting gratuitous ARP (garp) frames from devices
+ that are not already present in the ARP table:
- 0 - don't create new entries in the ARP table
- 1 - create new entries in the ARP table
+ - 2 - create new entries only if the source IP address is in the same
+ subnet as an address configured on the interface that received the
+ garp message.
Both replies and requests type gratuitous arp will trigger the
ARP table to be updated, if this setting is on.
@@ -2474,27 +2521,36 @@ drop_unsolicited_na - BOOLEAN
By default this is turned off.
-accept_untracked_na - BOOLEAN
- Add a new neighbour cache entry in STALE state for routers on receiving a
- neighbour advertisement (either solicited or unsolicited) with target
- link-layer address option specified if no neighbour entry is already
- present for the advertised IPv6 address. Without this knob, NAs received
- for untracked addresses (absent in neighbour cache) are silently ignored.
+accept_untracked_na - INTEGER
+ Define behavior for accepting neighbor advertisements from devices that
+ are absent in the neighbor cache:
- This is as per router-side behaviour documented in RFC9131.
+ - 0 - (default) Do not accept unsolicited and untracked neighbor
+ advertisements.
- This has lower precedence than drop_unsolicited_na.
+ - 1 - Add a new neighbor cache entry in STALE state for routers on
+ receiving a neighbor advertisement (either solicited or unsolicited)
+ with target link-layer address option specified if no neighbor entry
+ is already present for the advertised IPv6 address. Without this knob,
+ NAs received for untracked addresses (absent in neighbor cache) are
+ silently ignored.
- This will optimize the return path for the initial off-link communication
- that is initiated by a directly connected host, by ensuring that
- the first-hop router which turns on this setting doesn't have to
- buffer the initial return packets to do neighbour-solicitation.
- The prerequisite is that the host is configured to send
- unsolicited neighbour advertisements on interface bringup.
- This setting should be used in conjunction with the ndisc_notify setting
- on the host to satisfy this prerequisite.
+ This is as per router-side behavior documented in RFC9131.
- By default this is turned off.
+ This has lower precedence than drop_unsolicited_na.
+
+ This will optimize the return path for the initial off-link
+ communication that is initiated by a directly connected host, by
+ ensuring that the first-hop router which turns on this setting doesn't
+ have to buffer the initial return packets to do neighbor-solicitation.
+ The prerequisite is that the host is configured to send unsolicited
+ neighbor advertisements on interface bringup. This setting should be
+ used in conjunction with the ndisc_notify setting on the host to
+ satisfy this prerequisite.
+
+ - 2 - Extend option (1) to add a new neighbor cache entry only if the
+ source IP address is in the same subnet as an address configured on
+ the interface that received the neighbor advertisement.
enhanced_dad - BOOLEAN
Include a nonce option in the IPv6 neighbor solicitation messages used for
@@ -2870,7 +2926,14 @@ sctp_rmem - vector of 3 INTEGERs: min, default, max
Default: 4K
sctp_wmem - vector of 3 INTEGERs: min, default, max
- Currently this tunable has no effect.
+ Only the first value ("min") is used, "default" and "max" are
+ ignored.
+
+ min: Minimum size of send buffer that can be used by SCTP sockets.
+ It is guaranteed to each SCTP socket (but not association) even
+ under moderate memory pressure.
+
+ Default: 4K
addr_scope_policy - INTEGER
Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00
diff --git a/Documentation/networking/ipvlan.rst b/Documentation/networking/ipvlan.rst
index 694adcba36b0..0000c1d383bc 100644
--- a/Documentation/networking/ipvlan.rst
+++ b/Documentation/networking/ipvlan.rst
@@ -11,7 +11,7 @@ Initial Release:
================
This is conceptually very similar to the macvlan driver with one major
exception of using L3 for mux-ing /demux-ing among slaves. This property makes
-the master device share the L2 with it's slave devices. I have developed this
+the master device share the L2 with its slave devices. I have developed this
driver in conjunction with network namespaces and not sure if there is use case
outside of it.
diff --git a/Documentation/networking/l2tp.rst b/Documentation/networking/l2tp.rst
index 498b382d25a0..7f383e99dbad 100644
--- a/Documentation/networking/l2tp.rst
+++ b/Documentation/networking/l2tp.rst
@@ -530,7 +530,7 @@ its tunnel close actions. For L2TPIP sockets, the socket's close
handler initiates the same tunnel close actions. All sessions are
first closed. Each session drops its tunnel ref. When the tunnel ref
reaches zero, the tunnel puts its socket ref. When the socket is
-eventually destroyed, it's sk_destruct finally frees the L2TP tunnel
+eventually destroyed, its sk_destruct finally frees the L2TP tunnel
context.
Sessions
diff --git a/Documentation/networking/mptcp-sysctl.rst b/Documentation/networking/mptcp-sysctl.rst
index e263dfcc4b40..213510698014 100644
--- a/Documentation/networking/mptcp-sysctl.rst
+++ b/Documentation/networking/mptcp-sysctl.rst
@@ -47,7 +47,6 @@ allow_join_initial_addr_port - BOOLEAN
Default: 1
pm_type - INTEGER
-
Set the default path manager type to use for each new MPTCP
socket. In-kernel path management will control subflow
connections and address advertisements according to
diff --git a/Documentation/networking/nf_conntrack-sysctl.rst b/Documentation/networking/nf_conntrack-sysctl.rst
index 834945ebc4cd..1120d71f28d7 100644
--- a/Documentation/networking/nf_conntrack-sysctl.rst
+++ b/Documentation/networking/nf_conntrack-sysctl.rst
@@ -70,15 +70,6 @@ nf_conntrack_generic_timeout - INTEGER (seconds)
Default for generic timeout. This refers to layer 4 unknown/unsupported
protocols.
-nf_conntrack_helper - BOOLEAN
- - 0 - disabled (default)
- - not 0 - enabled
-
- Enable automatic conntrack helper assignment.
- If disabled it is required to set up iptables rules to assign
- helpers to connections. See the CT target description in the
- iptables-extensions(8) man page for further information.
-
nf_conntrack_icmp_timeout - INTEGER (seconds)
default 30
diff --git a/Documentation/networking/phy.rst b/Documentation/networking/phy.rst
index 704f31da5167..06f4fcdb58b6 100644
--- a/Documentation/networking/phy.rst
+++ b/Documentation/networking/phy.rst
@@ -308,6 +308,21 @@ Some of the interface modes are described below:
rate of 125Mpbs using a 4B/5B encoding scheme, resulting in an underlying
data rate of 100Mpbs.
+``PHY_INTERFACE_MODE_QUSGMII``
+ This defines the Cisco the Quad USGMII mode, which is the Quad variant of
+ the USGMII (Universal SGMII) link. It's very similar to QSGMII, but uses
+ a Packet Control Header (PCH) instead of the 7 bytes preamble to carry not
+ only the port id, but also so-called "extensions". The only documented
+ extension so-far in the specification is the inclusion of timestamps, for
+ PTP-enabled PHYs. This mode isn't compatible with QSGMII, but offers the
+ same capabilities in terms of link speed and negociation.
+
+``PHY_INTERFACE_MODE_1000BASEKX``
+ This is 1000BASE-X as defined by IEEE 802.3 Clause 36 with Clause 73
+ autonegotiation. Generally, it will be used with a Clause 70 PMD. To
+ contrast with the 1000BASE-X phy mode used for Clause 38 and 39 PMDs, this
+ interface mode has different autonegotiation and only supports full duplex.
+
Pause frames / flow control
===========================
diff --git a/Documentation/networking/representors.rst b/Documentation/networking/representors.rst
new file mode 100644
index 000000000000..ee1f5cd54496
--- /dev/null
+++ b/Documentation/networking/representors.rst
@@ -0,0 +1,259 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=============================
+Network Function Representors
+=============================
+
+This document describes the semantics and usage of representor netdevices, as
+used to control internal switching on SmartNICs. For the closely-related port
+representors on physical (multi-port) switches, see
+:ref:`Documentation/networking/switchdev.rst <switchdev>`.
+
+Motivation
+----------
+
+Since the mid-2010s, network cards have started offering more complex
+virtualisation capabilities than the legacy SR-IOV approach (with its simple
+MAC/VLAN-based switching model) can support. This led to a desire to offload
+software-defined networks (such as OpenVSwitch) to these NICs to specify the
+network connectivity of each function. The resulting designs are variously
+called SmartNICs or DPUs.
+
+Network function representors bring the standard Linux networking stack to
+virtual switches and IOV devices. Just as each physical port of a Linux-
+controlled switch has a separate netdev, so does each virtual port of a virtual
+switch.
+When the system boots, and before any offload is configured, all packets from
+the virtual functions appear in the networking stack of the PF via the
+representors. The PF can thus always communicate freely with the virtual
+functions.
+The PF can configure standard Linux forwarding between representors, the uplink
+or any other netdev (routing, bridging, TC classifiers).
+
+Thus, a representor is both a control plane object (representing the function in
+administrative commands) and a data plane object (one end of a virtual pipe).
+As a virtual link endpoint, the representor can be configured like any other
+netdevice; in some cases (e.g. link state) the representee will follow the
+representor's configuration, while in others there are separate APIs to
+configure the representee.
+
+Definitions
+-----------
+
+This document uses the term "switchdev function" to refer to the PCIe function
+which has administrative control over the virtual switch on the device.
+Typically, this will be a PF, but conceivably a NIC could be configured to grant
+these administrative privileges instead to a VF or SF (subfunction).
+Depending on NIC design, a multi-port NIC might have a single switchdev function
+for the whole device or might have a separate virtual switch, and hence
+switchdev function, for each physical network port.
+If the NIC supports nested switching, there might be separate switchdev
+functions for each nested switch, in which case each switchdev function should
+only create representors for the ports on the (sub-)switch it directly
+administers.
+
+A "representee" is the object that a representor represents. So for example in
+the case of a VF representor, the representee is the corresponding VF.
+
+What does a representor do?
+---------------------------
+
+A representor has three main roles.
+
+1. It is used to configure the network connection the representee sees, e.g.
+ link up/down, MTU, etc. For instance, bringing the representor
+ administratively UP should cause the representee to see a link up / carrier
+ on event.
+2. It provides the slow path for traffic which does not hit any offloaded
+ fast-path rules in the virtual switch. Packets transmitted on the
+ representor netdevice should be delivered to the representee; packets
+ transmitted by the representee which fail to match any switching rule should
+ be received on the representor netdevice. (That is, there is a virtual pipe
+ connecting the representor to the representee, similar in concept to a veth
+ pair.)
+ This allows software switch implementations (such as OpenVSwitch or a Linux
+ bridge) to forward packets between representees and the rest of the network.
+3. It acts as a handle by which switching rules (such as TC filters) can refer
+ to the representee, allowing these rules to be offloaded.
+
+The combination of 2) and 3) means that the behaviour (apart from performance)
+should be the same whether a TC filter is offloaded or not. E.g. a TC rule
+on a VF representor applies in software to packets received on that representor
+netdevice, while in hardware offload it would apply to packets transmitted by
+the representee VF. Conversely, a mirred egress redirect to a VF representor
+corresponds in hardware to delivery directly to the representee VF.
+
+What functions should have a representor?
+-----------------------------------------
+
+Essentially, for each virtual port on the device's internal switch, there
+should be a representor.
+Some vendors have chosen to omit representors for the uplink and the physical
+network port, which can simplify usage (the uplink netdev becomes in effect the
+physical port's representor) but does not generalise to devices with multiple
+ports or uplinks.
+
+Thus, the following should all have representors:
+
+ - VFs belonging to the switchdev function.
+ - Other PFs on the local PCIe controller, and any VFs belonging to them.
+ - PFs and VFs on external PCIe controllers on the device (e.g. for any embedded
+ System-on-Chip within the SmartNIC).
+ - PFs and VFs with other personalities, including network block devices (such
+ as a vDPA virtio-blk PF backed by remote/distributed storage), if (and only
+ if) their network access is implemented through a virtual switch port. [#]_
+ Note that such functions can require a representor despite the representee
+ not having a netdev.
+ - Subfunctions (SFs) belonging to any of the above PFs or VFs, if they have
+ their own port on the switch (as opposed to using their parent PF's port).
+ - Any accelerators or plugins on the device whose interface to the network is
+ through a virtual switch port, even if they do not have a corresponding PCIe
+ PF or VF.
+
+This allows the entire switching behaviour of the NIC to be controlled through
+representor TC rules.
+
+It is a common misunderstanding to conflate virtual ports with PCIe virtual
+functions or their netdevs. While in simple cases there will be a 1:1
+correspondence between VF netdevices and VF representors, more advanced device
+configurations may not follow this.
+A PCIe function which does not have network access through the internal switch
+(not even indirectly through the hardware implementation of whatever services
+the function provides) should *not* have a representor (even if it has a
+netdev).
+Such a function has no switch virtual port for the representor to configure or
+to be the other end of the virtual pipe.
+The representor represents the virtual port, not the PCIe function nor the 'end
+user' netdevice.
+
+.. [#] The concept here is that a hardware IP stack in the device performs the
+ translation between block DMA requests and network packets, so that only
+ network packets pass through the virtual port onto the switch. The network
+ access that the IP stack "sees" would then be configurable through tc rules;
+ e.g. its traffic might all be wrapped in a specific VLAN or VxLAN. However,
+ any needed configuration of the block device *qua* block device, not being a
+ networking entity, would not be appropriate for the representor and would
+ thus use some other channel such as devlink.
+ Contrast this with the case of a virtio-blk implementation which forwards the
+ DMA requests unchanged to another PF whose driver then initiates and
+ terminates IP traffic in software; in that case the DMA traffic would *not*
+ run over the virtual switch and the virtio-blk PF should thus *not* have a
+ representor.
+
+How are representors created?
+-----------------------------
+
+The driver instance attached to the switchdev function should, for each virtual
+port on the switch, create a pure-software netdevice which has some form of
+in-kernel reference to the switchdev function's own netdevice or driver private
+data (``netdev_priv()``).
+This may be by enumerating ports at probe time, reacting dynamically to the
+creation and destruction of ports at run time, or a combination of the two.
+
+The operations of the representor netdevice will generally involve acting
+through the switchdev function. For example, ``ndo_start_xmit()`` might send
+the packet through a hardware TX queue attached to the switchdev function, with
+either packet metadata or queue configuration marking it for delivery to the
+representee.
+
+How are representors identified?
+--------------------------------
+
+The representor netdevice should *not* directly refer to a PCIe device (e.g.
+through ``net_dev->dev.parent`` / ``SET_NETDEV_DEV()``), either of the
+representee or of the switchdev function.
+Instead, it should implement the ``ndo_get_devlink_port()`` netdevice op, which
+the kernel uses to provide the ``phys_switch_id`` and ``phys_port_name`` sysfs
+nodes. (Some legacy drivers implement ``ndo_get_port_parent_id()`` and
+``ndo_get_phys_port_name()`` directly, but this is deprecated.) See
+:ref:`Documentation/networking/devlink/devlink-port.rst <devlink_port>` for the
+details of this API.
+
+It is expected that userland will use this information (e.g. through udev rules)
+to construct an appropriately informative name or alias for the netdevice. For
+instance if the switchdev function is ``eth4`` then a representor with a
+``phys_port_name`` of ``p0pf1vf2`` might be renamed ``eth4pf1vf2rep``.
+
+There are as yet no established conventions for naming representors which do not
+correspond to PCIe functions (e.g. accelerators and plugins).
+
+How do representors interact with TC rules?
+-------------------------------------------
+
+Any TC rule on a representor applies (in software TC) to packets received by
+that representor netdevice. Thus, if the delivery part of the rule corresponds
+to another port on the virtual switch, the driver may choose to offload it to
+hardware, applying it to packets transmitted by the representee.
+
+Similarly, since a TC mirred egress action targeting the representor would (in
+software) send the packet through the representor (and thus indirectly deliver
+it to the representee), hardware offload should interpret this as delivery to
+the representee.
+
+As a simple example, if ``PORT_DEV`` is the physical port representor and
+``REP_DEV`` is a VF representor, the following rules::
+
+ tc filter add dev $REP_DEV parent ffff: protocol ipv4 flower \
+ action mirred egress redirect dev $PORT_DEV
+ tc filter add dev $PORT_DEV parent ffff: protocol ipv4 flower skip_sw \
+ action mirred egress mirror dev $REP_DEV
+
+would mean that all IPv4 packets from the VF are sent out the physical port, and
+all IPv4 packets received on the physical port are delivered to the VF in
+addition to ``PORT_DEV``. (Note that without ``skip_sw`` on the second rule,
+the VF would get two copies, as the packet reception on ``PORT_DEV`` would
+trigger the TC rule again and mirror the packet to ``REP_DEV``.)
+
+On devices without separate port and uplink representors, ``PORT_DEV`` would
+instead be the switchdev function's own uplink netdevice.
+
+Of course the rules can (if supported by the NIC) include packet-modifying
+actions (e.g. VLAN push/pop), which should be performed by the virtual switch.
+
+Tunnel encapsulation and decapsulation are rather more complicated, as they
+involve a third netdevice (a tunnel netdev operating in metadata mode, such as
+a VxLAN device created with ``ip link add vxlan0 type vxlan external``) and
+require an IP address to be bound to the underlay device (e.g. switchdev
+function uplink netdev or port representor). TC rules such as::
+
+ tc filter add dev $REP_DEV parent ffff: flower \
+ action tunnel_key set id $VNI src_ip $LOCAL_IP dst_ip $REMOTE_IP \
+ dst_port 4789 \
+ action mirred egress redirect dev vxlan0
+ tc filter add dev vxlan0 parent ffff: flower enc_src_ip $REMOTE_IP \
+ enc_dst_ip $LOCAL_IP enc_key_id $VNI enc_dst_port 4789 \
+ action tunnel_key unset action mirred egress redirect dev $REP_DEV
+
+where ``LOCAL_IP`` is an IP address bound to ``PORT_DEV``, and ``REMOTE_IP`` is
+another IP address on the same subnet, mean that packets sent by the VF should
+be VxLAN encapsulated and sent out the physical port (the driver has to deduce
+this by a route lookup of ``LOCAL_IP`` leading to ``PORT_DEV``, and also
+perform an ARP/neighbour table lookup to find the MAC addresses to use in the
+outer Ethernet frame), while UDP packets received on the physical port with UDP
+port 4789 should be parsed as VxLAN and, if their VSID matches ``$VNI``,
+decapsulated and forwarded to the VF.
+
+If this all seems complicated, just remember the 'golden rule' of TC offload:
+the hardware should ensure the same final results as if the packets were
+processed through the slow path, traversed software TC (except ignoring any
+``skip_hw`` rules and applying any ``skip_sw`` rules) and were transmitted or
+received through the representor netdevices.
+
+Configuring the representee's MAC
+---------------------------------
+
+The representee's link state is controlled through the representor. Setting the
+representor administratively UP or DOWN should cause carrier ON or OFF at the
+representee.
+
+Setting an MTU on the representor should cause that same MTU to be reported to
+the representee.
+(On hardware that allows configuring separate and distinct MTU and MRU values,
+the representor MTU should correspond to the representee's MRU and vice-versa.)
+
+Currently there is no way to use the representor to set the station permanent
+MAC address of the representee; other methods available to do this include:
+
+ - legacy SR-IOV (``ip link set DEVICE vf NUM mac LLADDR``)
+ - devlink port function (see **devlink-port(8)** and
+ :ref:`Documentation/networking/devlink/devlink-port.rst <devlink_port>`)
diff --git a/Documentation/networking/rxrpc.rst b/Documentation/networking/rxrpc.rst
index 39c2249c7aa7..39494a6ea739 100644
--- a/Documentation/networking/rxrpc.rst
+++ b/Documentation/networking/rxrpc.rst
@@ -1055,17 +1055,6 @@ The kernel interface functions are as follows:
first function to change. Note that this must be called in TASK_RUNNING
state.
- (#) Get reply timestamp::
-
- bool rxrpc_kernel_get_reply_time(struct socket *sock,
- struct rxrpc_call *call,
- ktime_t *_ts)
-
- This allows the timestamp on the first DATA packet of the reply of a
- client call to be queried, provided that it is still in the Rx ring. If
- successful, the timestamp will be stored into ``*_ts`` and true will be
- returned; false will be returned otherwise.
-
(#) Get remote client epoch::
u32 rxrpc_kernel_get_epoch(struct socket *sock,
diff --git a/Documentation/networking/sfp-phylink.rst b/Documentation/networking/sfp-phylink.rst
index 328f8d39eeb3..55b65f607a64 100644
--- a/Documentation/networking/sfp-phylink.rst
+++ b/Documentation/networking/sfp-phylink.rst
@@ -203,7 +203,7 @@ this documentation.
The :c:func:`validate` method should mask the supplied supported mask,
and ``state->advertising`` with the supported ethtool link modes.
These are the new ethtool link modes, so bitmask operations must be
- used. For an example, see drivers/net/ethernet/marvell/mvneta.c.
+ used. For an example, see ``drivers/net/ethernet/marvell/mvneta.c``.
The :c:func:`mac_link_state` method is used to read the link state
from the MAC, and report back the settings that the MAC is currently
@@ -224,7 +224,7 @@ this documentation.
function should modify the state and only take the link down when
absolutely necessary to change the MAC configuration. An example
of how to do this can be found in :c:func:`mvneta_mac_config` in
- drivers/net/ethernet/marvell/mvneta.c.
+ ``drivers/net/ethernet/marvell/mvneta.c``.
For further information on these methods, please see the inline
documentation in :c:type:`struct phylink_mac_ops <phylink_mac_ops>`.
@@ -281,4 +281,4 @@ as necessary.
For information describing the SFP cage in DT, please see the binding
documentation in the kernel source tree
-``Documentation/devicetree/bindings/net/sff,sfp.txt``
+``Documentation/devicetree/bindings/net/sff,sfp.yaml``.
diff --git a/Documentation/networking/smc-sysctl.rst b/Documentation/networking/smc-sysctl.rst
index 0987fd1bc220..6d8acdbe9be1 100644
--- a/Documentation/networking/smc-sysctl.rst
+++ b/Documentation/networking/smc-sysctl.rst
@@ -21,3 +21,41 @@ autocorking_size - INTEGER
know how/when to uncork their sockets.
Default: 64K
+
+smcr_buf_type - INTEGER
+ Controls which type of sndbufs and RMBs to use in later newly created
+ SMC-R link group. Only for SMC-R.
+
+ Default: 0 (physically contiguous sndbufs and RMBs)
+
+ Possible values:
+
+ - 0 - Use physically contiguous buffers
+ - 1 - Use virtually contiguous buffers
+ - 2 - Mixed use of the two types. Try physically contiguous buffers first.
+ If not available, use virtually contiguous buffers then.
+
+smcr_testlink_time - INTEGER
+ How frequently SMC-R link sends out TEST_LINK LLC messages to confirm
+ viability, after the last activity of connections on it. Value 0 means
+ disabling TEST_LINK.
+
+ Default: 30 seconds.
+
+wmem - INTEGER
+ Initial size of send buffer used by SMC sockets.
+ The default value inherits from net.ipv4.tcp_wmem[1].
+
+ The minimum value is 16KiB and there is no hard limit for max value, but
+ only allowed 512KiB for SMC-R and 1MiB for SMC-D.
+
+ Default: 16K
+
+rmem - INTEGER
+ Initial size of receive buffer (RMB) used by SMC sockets.
+ The default value inherits from net.ipv4.tcp_rmem[1].
+
+ The minimum value is 16KiB and there is no hard limit for max value, but
+ only allowed 512KiB for SMC-R and 1MiB for SMC-D.
+
+ Default: 128K
diff --git a/Documentation/networking/switchdev.rst b/Documentation/networking/switchdev.rst
index f1f4e6a85a29..758f1dae3fce 100644
--- a/Documentation/networking/switchdev.rst
+++ b/Documentation/networking/switchdev.rst
@@ -1,5 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
.. include:: <isonum.txt>
+.. _switchdev:
===============================================
Ethernet switch device driver model (switchdev)
@@ -159,7 +160,7 @@ tools such as iproute2.
The switchdev driver can know a particular port's position in the topology by
monitoring NETDEV_CHANGEUPPER notifications. For example, a port moved into a
-bond will see it's upper master change. If that bond is moved into a bridge,
+bond will see its upper master change. If that bond is moved into a bridge,
the bond's upper master will change. And so on. The driver will track such
movements to know what position a port is in in the overall topology by
registering for netdevice events and acting on NETDEV_CHANGEUPPER.
diff --git a/Documentation/networking/tls.rst b/Documentation/networking/tls.rst
index 8cb2cd4e2a80..658ed3a71e1b 100644
--- a/Documentation/networking/tls.rst
+++ b/Documentation/networking/tls.rst
@@ -214,6 +214,44 @@ of calling send directly after a handshake using gnutls.
Since it doesn't implement a full record layer, control
messages are not supported.
+Optional optimizations
+----------------------
+
+There are certain condition-specific optimizations the TLS ULP can make,
+if requested. Those optimizations are either not universally beneficial
+or may impact correctness, hence they require an opt-in.
+All options are set per-socket using setsockopt(), and their
+state can be checked using getsockopt() and via socket diag (``ss``).
+
+TLS_TX_ZEROCOPY_RO
+~~~~~~~~~~~~~~~~~~
+
+For device offload only. Allow sendfile() data to be transmitted directly
+to the NIC without making an in-kernel copy. This allows true zero-copy
+behavior when device offload is enabled.
+
+The application must make sure that the data is not modified between being
+submitted and transmission completing. In other words this is mostly
+applicable if the data sent on a socket via sendfile() is read-only.
+
+Modifying the data may result in different versions of the data being used
+for the original TCP transmission and TCP retransmissions. To the receiver
+this will look like TLS records had been tampered with and will result
+in record authentication failures.
+
+TLS_RX_EXPECT_NO_PAD
+~~~~~~~~~~~~~~~~~~~~
+
+TLS 1.3 only. Expect the sender to not pad records. This allows the data
+to be decrypted directly into user space buffers with TLS 1.3.
+
+This optimization is safe to enable only if the remote end is trusted,
+otherwise it is an attack vector to doubling the TLS processing cost.
+
+If the record decrypted turns out to had been padded or is not a data
+record it will be decrypted again into a kernel buffer without zero copy.
+Such events are counted in the ``TlsDecryptRetry`` statistic.
+
Statistics
==========
@@ -239,3 +277,12 @@ TLS implementation exposes the following per-namespace statistics
- ``TlsDeviceRxResync`` -
number of RX resyncs sent to NICs handling cryptography
+
+- ``TlsDecryptRetry`` -
+ number of RX records which had to be re-decrypted due to
+ ``TLS_RX_EXPECT_NO_PAD`` mis-prediction. Note that this counter will
+ also increment for non-data records.
+
+- ``TlsRxNoPadViolation`` -
+ number of data RX records which had to be re-decrypted due to
+ ``TLS_RX_EXPECT_NO_PAD`` mis-prediction.
diff --git a/Documentation/power/energy-model.rst b/Documentation/power/energy-model.rst
index feb257b7f350..ef341be2882b 100644
--- a/Documentation/power/energy-model.rst
+++ b/Documentation/power/energy-model.rst
@@ -20,20 +20,20 @@ possible source of information on its own, the EM framework intervenes as an
abstraction layer which standardizes the format of power cost tables in the
kernel, hence enabling to avoid redundant work.
-The power values might be expressed in milli-Watts or in an 'abstract scale'.
+The power values might be expressed in micro-Watts or in an 'abstract scale'.
Multiple subsystems might use the EM and it is up to the system integrator to
check that the requirements for the power value scale types are met. An example
can be found in the Energy-Aware Scheduler documentation
Documentation/scheduler/sched-energy.rst. For some subsystems like thermal or
powercap power values expressed in an 'abstract scale' might cause issues.
These subsystems are more interested in estimation of power used in the past,
-thus the real milli-Watts might be needed. An example of these requirements can
+thus the real micro-Watts might be needed. An example of these requirements can
be found in the Intelligent Power Allocation in
Documentation/driver-api/thermal/power_allocator.rst.
Kernel subsystems might implement automatic detection to check whether EM
registered devices have inconsistent scale (based on EM internal flag).
Important thing to keep in mind is that when the power values are expressed in
-an 'abstract scale' deriving real energy in milli-Joules would not be possible.
+an 'abstract scale' deriving real energy in micro-Joules would not be possible.
The figure below depicts an example of drivers (Arm-specific here, but the
approach is applicable to any architecture) providing power costs to the EM
@@ -98,7 +98,7 @@ Drivers are expected to register performance domains into the EM framework by
calling the following API::
int em_dev_register_perf_domain(struct device *dev, unsigned int nr_states,
- struct em_data_callback *cb, cpumask_t *cpus, bool milliwatts);
+ struct em_data_callback *cb, cpumask_t *cpus, bool microwatts);
Drivers must provide a callback function returning <frequency, power> tuples
for each performance state. The callback function provided by the driver is free
@@ -106,10 +106,10 @@ to fetch data from any relevant location (DT, firmware, ...), and by any mean
deemed necessary. Only for CPU devices, drivers must specify the CPUs of the
performance domains using cpumask. For other devices than CPUs the last
argument must be set to NULL.
-The last argument 'milliwatts' is important to set with correct value. Kernel
+The last argument 'microwatts' is important to set with correct value. Kernel
subsystems which use EM might rely on this flag to check if all EM devices use
the same scale. If there are different scales, these subsystems might decide
-to: return warning/error, stop working or panic.
+to return warning/error, stop working or panic.
See Section 3. for an example of driver implementing this
callback, or Section 2.4 for further documentation on this API
@@ -137,7 +137,7 @@ The .get_cost() allows to provide the 'cost' values which reflect the
efficiency of the CPUs. This would allow to provide EAS information which
has different relation than what would be forced by the EM internal
formulas calculating 'cost' values. To register an EM for such platform, the
-driver must set the flag 'milliwatts' to 0, provide .get_power() callback
+driver must set the flag 'microwatts' to 0, provide .get_power() callback
and provide .get_cost() callback. The EM framework would handle such platform
properly during registration. A flag EM_PERF_DOMAIN_ARTIFICIAL is set for such
platform. Special care should be taken by other frameworks which are using EM
diff --git a/Documentation/power/pci.rst b/Documentation/power/pci.rst
index b04fb18cc4e2..a125544b4cb6 100644
--- a/Documentation/power/pci.rst
+++ b/Documentation/power/pci.rst
@@ -315,7 +315,7 @@ that these callbacks operate on::
configuration space */
unsigned int pme_support:5; /* Bitmask of states from which PME#
can be generated */
- unsigned int pme_interrupt:1;/* Is native PCIe PME signaling used? */
+ unsigned int pme_poll:1; /* Poll device's PME status bit */
unsigned int d1_support:1; /* Low power state D1 is supported */
unsigned int d2_support:1; /* Low power state D2 is supported */
unsigned int no_d1d2:1; /* D1 and D2 are forbidden */
diff --git a/Documentation/powerpc/elf_hwcaps.rst b/Documentation/powerpc/elf_hwcaps.rst
new file mode 100644
index 000000000000..3366e5b18e67
--- /dev/null
+++ b/Documentation/powerpc/elf_hwcaps.rst
@@ -0,0 +1,231 @@
+.. _elf_hwcaps_powerpc:
+
+==================
+POWERPC ELF HWCAPs
+==================
+
+This document describes the usage and semantics of the powerpc ELF HWCAPs.
+
+
+1. Introduction
+---------------
+
+Some hardware or software features are only available on some CPU
+implementations, and/or with certain kernel configurations, but have no other
+discovery mechanism available to userspace code. The kernel exposes the
+presence of these features to userspace through a set of flags called HWCAPs,
+exposed in the auxiliary vector.
+
+Userspace software can test for features by acquiring the AT_HWCAP or
+AT_HWCAP2 entry of the auxiliary vector, and testing whether the relevant
+flags are set, e.g.::
+
+ bool floating_point_is_present(void)
+ {
+ unsigned long HWCAPs = getauxval(AT_HWCAP);
+ if (HWCAPs & PPC_FEATURE_HAS_FPU)
+ return true;
+
+ return false;
+ }
+
+Where software relies on a feature described by a HWCAP, it should check the
+relevant HWCAP flag to verify that the feature is present before attempting to
+make use of the feature.
+
+HWCAP is the preferred method to test for the presence of a feature rather
+than probing through other means, which may not be reliable or may cause
+unpredictable behaviour.
+
+Software that targets a particular platform does not necessarily have to
+test for required or implied features. For example if the program requires
+FPU, VMX, VSX, it is not necessary to test those HWCAPs, and it may be
+impossible to do so if the compiler generates code requiring those features.
+
+2. Facilities
+-------------
+
+The Power ISA uses the term "facility" to describe a class of instructions,
+registers, interrupts, etc. The presence or absence of a facility indicates
+whether this class is available to be used, but the specifics depend on the
+ISA version. For example, if the VSX facility is available, the VSX
+instructions that can be used differ between the v3.0B and v3.1B ISA
+versions.
+
+3. Categories
+-------------
+
+The Power ISA before v3.0 uses the term "category" to describe certain
+classes of instructions and operating modes which may be optional or
+mutually exclusive, the exact meaning of the HWCAP flag may depend on
+context, e.g., the presence of the BOOKE feature implies that the server
+category is not implemented.
+
+4. HWCAP allocation
+-------------------
+
+HWCAPs are allocated as described in Power Architecture 64-Bit ELF V2 ABI
+Specification (which will be reflected in the kernel's uapi headers).
+
+5. The HWCAPs exposed in AT_HWCAP
+---------------------------------
+
+PPC_FEATURE_32
+ 32-bit CPU
+
+PPC_FEATURE_64
+ 64-bit CPU (userspace may be running in 32-bit mode).
+
+PPC_FEATURE_601_INSTR
+ The processor is PowerPC 601.
+ Unused in the kernel since f0ed73f3fa2c ("powerpc: Remove PowerPC 601")
+
+PPC_FEATURE_HAS_ALTIVEC
+ Vector (aka Altivec, VMX) facility is available.
+
+PPC_FEATURE_HAS_FPU
+ Floating point facility is available.
+
+PPC_FEATURE_HAS_MMU
+ Memory management unit is present and enabled.
+
+PPC_FEATURE_HAS_4xxMAC
+ The processor is 40x or 44x family.
+
+PPC_FEATURE_UNIFIED_CACHE
+ The processor has a unified L1 cache for instructions and data, as
+ found in NXP e200.
+ Unused in the kernel since 39c8bf2b3cc1 ("powerpc: Retire e200 core (mpc555x processor)")
+
+PPC_FEATURE_HAS_SPE
+ Signal Processing Engine facility is available.
+
+PPC_FEATURE_HAS_EFP_SINGLE
+ Embedded Floating Point single precision operations are available.
+
+PPC_FEATURE_HAS_EFP_DOUBLE
+ Embedded Floating Point double precision operations are available.
+
+PPC_FEATURE_NO_TB
+ The timebase facility (mftb instruction) is not available.
+ This is a 601 specific HWCAP, so if it is known that the processor
+ running is not a 601, via other HWCAPs or other means, it is not
+ required to test this bit before using the timebase.
+ Unused in the kernel since f0ed73f3fa2c ("powerpc: Remove PowerPC 601")
+
+PPC_FEATURE_POWER4
+ The processor is POWER4 or PPC970/FX/MP.
+ POWER4 support dropped from the kernel since 471d7ff8b51b ("powerpc/64s: Remove POWER4 support")
+
+PPC_FEATURE_POWER5
+ The processor is POWER5.
+
+PPC_FEATURE_POWER5_PLUS
+ The processor is POWER5+.
+
+PPC_FEATURE_CELL
+ The processor is Cell.
+
+PPC_FEATURE_BOOKE
+ The processor implements the embedded category ("BookE") architecture.
+
+PPC_FEATURE_SMT
+ The processor implements SMT.
+
+PPC_FEATURE_ICACHE_SNOOP
+ The processor icache is coherent with the dcache, and instruction storage
+ can be made consistent with data storage for the purpose of executing
+ instructions with the sequence (as described in, e.g., POWER9 Processor
+ User's Manual, 4.6.2.2 Instruction Cache Block Invalidate (icbi))::
+
+ sync
+ icbi (to any address)
+ isync
+
+PPC_FEATURE_ARCH_2_05
+ The processor supports the v2.05 userlevel architecture. Processors
+ supporting later architectures DO NOT set this feature.
+
+PPC_FEATURE_PA6T
+ The processor is PA6T.
+
+PPC_FEATURE_HAS_DFP
+ DFP facility is available.
+
+PPC_FEATURE_POWER6_EXT
+ The processor is POWER6.
+
+PPC_FEATURE_ARCH_2_06
+ The processor supports the v2.06 userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE_HAS_VSX
+ VSX facility is available.
+
+PPC_FEATURE_PSERIES_PERFMON_COMPAT
+ The processor supports architected PMU events in the range 0xE0-0xFF.
+
+PPC_FEATURE_TRUE_LE
+ The processor supports true little-endian mode.
+
+PPC_FEATURE_PPC_LE
+ The processor supports "PowerPC Little-Endian", that uses address
+ munging to make storage access appear to be little-endian, but the
+ data is stored in a different format that is unsuitable to be
+ accessed by other agents not running in this mode.
+
+6. The HWCAPs exposed in AT_HWCAP2
+----------------------------------
+
+PPC_FEATURE2_ARCH_2_07
+ The processor supports the v2.07 userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE2_HTM
+ Transactional Memory feature is available.
+
+PPC_FEATURE2_DSCR
+ DSCR facility is available.
+
+PPC_FEATURE2_EBB
+ EBB facility is available.
+
+PPC_FEATURE2_ISEL
+ isel instruction is available. This is superseded by ARCH_2_07 and
+ later.
+
+PPC_FEATURE2_TAR
+ TAR facility is available.
+
+PPC_FEATURE2_VEC_CRYPTO
+ v2.07 crypto instructions are available.
+
+PPC_FEATURE2_HTM_NOSC
+ System calls fail if called in a transactional state, see
+ Documentation/powerpc/syscall64-abi.rst
+
+PPC_FEATURE2_ARCH_3_00
+ The processor supports the v3.0B / v3.0C userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE2_HAS_IEEE128
+ IEEE 128-bit binary floating point is supported with VSX
+ quad-precision instructions and data types.
+
+PPC_FEATURE2_DARN
+ darn instruction is available.
+
+PPC_FEATURE2_SCV
+ The scv 0 instruction may be used for system calls, see
+ Documentation/powerpc/syscall64-abi.rst.
+
+PPC_FEATURE2_HTM_NO_SUSPEND
+ A limited Transactional Memory facility that does not support suspend is
+ available, see Documentation/powerpc/transactional_memory.rst.
+
+PPC_FEATURE2_ARCH_3_1
+ The processor supports the v3.1 userlevel architecture. Processors
+ supporting later architectures also set this feature.
+
+PPC_FEATURE2_MMA
+ MMA facility is available.
diff --git a/Documentation/powerpc/index.rst b/Documentation/powerpc/index.rst
index 0f7d3c495693..85e80e30160b 100644
--- a/Documentation/powerpc/index.rst
+++ b/Documentation/powerpc/index.rst
@@ -17,6 +17,7 @@ powerpc
dawr-power9
dscr
eeh-pci-error-recovery
+ elf_hwcaps
elfnote
firmware-assisted-dump
hvcs
diff --git a/Documentation/powerpc/isa-versions.rst b/Documentation/powerpc/isa-versions.rst
index dfcb1097dce4..a8d6b6028b3e 100644
--- a/Documentation/powerpc/isa-versions.rst
+++ b/Documentation/powerpc/isa-versions.rst
@@ -4,12 +4,16 @@ CPU to ISA Version Mapping
Mapping of some CPU versions to relevant ISA versions.
+Note Power4 and Power4+ are not supported.
+
========= ====================================================================
CPU Architecture version
========= ====================================================================
Power10 Power ISA v3.1
Power9 Power ISA v3.0B
Power8 Power ISA v2.07
+e6500 Power ISA v2.06 with some exceptions
+e5500 Power ISA v2.06 with some exceptions, no Altivec
Power7 Power ISA v2.06
Power6 Power ISA v2.05
PA6T Power ISA v2.04
@@ -24,6 +28,12 @@ PPC970 - PowerPC User Instruction Set Architecture Book I v2.01
- PowerPC Virtual Environment Architecture Book II v2.01
- PowerPC Operating Environment Architecture Book III v2.01
- Plus Altivec/VMX ~= 2.03
+Power4+ - PowerPC User Instruction Set Architecture Book I v2.01
+ - PowerPC Virtual Environment Architecture Book II v2.01
+ - PowerPC Operating Environment Architecture Book III v2.01
+Power4 - PowerPC User Instruction Set Architecture Book I v2.00
+ - PowerPC Virtual Environment Architecture Book II v2.00
+ - PowerPC Operating Environment Architecture Book III v2.00
========= ====================================================================
@@ -36,6 +46,8 @@ CPU VMX (aka. Altivec)
Power10 Yes
Power9 Yes
Power8 Yes
+e6500 Yes
+e5500 No
Power7 Yes
Power6 Yes
PA6T Yes
@@ -44,6 +56,8 @@ Power5++ No
Power5+ No
Power5 No
PPC970 Yes
+Power4+ No
+Power4 No
========== ==================
========== ====
@@ -52,6 +66,8 @@ CPU VSX
Power10 Yes
Power9 Yes
Power8 Yes
+e6500 No
+e5500 No
Power7 Yes
Power6 No
PA6T No
@@ -60,6 +76,8 @@ Power5++ No
Power5+ No
Power5 No
PPC970 No
+Power4+ No
+Power4 No
========== ====
========== ====================================
@@ -68,6 +86,8 @@ CPU Transactional Memory
Power10 No (* see Power ISA v3.1, "Appendix A. Notes on the Removal of Transactional Memory from the Architecture")
Power9 Yes (* see transactional_memory.txt)
Power8 Yes
+e6500 No
+e5500 No
Power7 No
Power6 No
PA6T No
@@ -76,4 +96,6 @@ Power5++ No
Power5+ No
Power5 No
PPC970 No
+Power4+ No
+Power4 No
========== ====================================
diff --git a/Documentation/process/5.Posting.rst b/Documentation/process/5.Posting.rst
index bd36ecb29409..d87f1fee4cbc 100644
--- a/Documentation/process/5.Posting.rst
+++ b/Documentation/process/5.Posting.rst
@@ -10,8 +10,7 @@ of conventions and procedures which are used in the posting of patches;
following them will make life much easier for everybody involved. This
document will attempt to cover these expectations in reasonable detail;
more information can also be found in the files
-:ref:`Documentation/process/submitting-patches.rst <submittingpatches>`,
-:ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
+:ref:`Documentation/process/submitting-patches.rst <submittingpatches>`
and :ref:`Documentation/process/submit-checklist.rst <submitchecklist>`.
@@ -257,8 +256,10 @@ The tags in common use are:
- Cc: the named person received a copy of the patch and had the
opportunity to comment on it.
-Be careful in the addition of tags to your patches: only Cc: is appropriate
-for addition without the explicit permission of the person named.
+Be careful in the addition of tags to your patches, as only Cc: is appropriate
+for addition without the explicit permission of the person named; using
+Reported-by: is fine most of the time as well, but ask for permission if
+the bug was reported in private.
Sending the patch
diff --git a/Documentation/process/8.Conclusion.rst b/Documentation/process/8.Conclusion.rst
index b32a40215858..8c847dffe76b 100644
--- a/Documentation/process/8.Conclusion.rst
+++ b/Documentation/process/8.Conclusion.rst
@@ -5,15 +5,13 @@ For more information
There are numerous sources of information on Linux kernel development and
related topics. First among those will always be the Documentation
-directory found in the kernel source distribution. The top-level :ref:`process/howto.rst <process_howto>`
-file is an important starting point; :ref:`process/submitting-patches.rst <submittingpatches>`
-and :ref:`process/submitting-drivers.rst <submittingdrivers>`
-are also something which all kernel developers should
-read. Many internal kernel APIs are documented using the kerneldoc
-mechanism; "make htmldocs" or "make pdfdocs" can be used to generate those
-documents in HTML or PDF format (though the version of TeX shipped by some
-distributions runs into internal limits and fails to process the documents
-properly).
+directory found in the kernel source distribution. Start with the
+top-level :ref:`process/howto.rst <process_howto>`; also read
+:ref:`process/submitting-patches.rst <submittingpatches>`. Many internal
+kernel APIs are documented using the kerneldoc mechanism; "make htmldocs"
+or "make pdfdocs" can be used to generate those documents in HTML or PDF
+format (though the version of TeX shipped by some distributions runs into
+internal limits and fails to process the documents properly).
Various web sites discuss kernel development at all levels of detail. Your
author would like to humbly suggest https://lwn.net/ as a source;
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index 19c286c23786..9844ca3a71a6 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -31,7 +31,9 @@ you probably needn't concern yourself with pcmciautils.
====================== =============== ========================================
GNU C 5.1 gcc --version
Clang/LLVM (optional) 11.0.0 clang --version
-GNU make 3.81 make --version
+Rust (optional) 1.62.0 rustc --version
+bindgen (optional) 0.56.0 bindgen --version
+GNU make 3.82 make --version
bash 4.2 bash --version
binutils 2.23 ld -v
flex 2.5.35 flex --version
@@ -80,10 +82,33 @@ kernels. Older releases aren't guaranteed to work, and we may drop workarounds
from the kernel that were used to support older versions. Please see additional
docs on :ref:`Building Linux with Clang/LLVM <kbuild_llvm>`.
+Rust (optional)
+---------------
+
+A particular version of the Rust toolchain is required. Newer versions may or
+may not work because the kernel depends on some unstable Rust features, for
+the moment.
+
+Each Rust toolchain comes with several "components", some of which are required
+(like ``rustc``) and some that are optional. The ``rust-src`` component (which
+is optional) needs to be installed to build the kernel. Other components are
+useful for developing.
+
+Please see Documentation/rust/quick-start.rst for instructions on how to
+satisfy the build requirements of Rust support. In particular, the ``Makefile``
+target ``rustavailable`` is useful to check why the Rust toolchain may not
+be detected.
+
+bindgen (optional)
+------------------
+
+``bindgen`` is used to generate the Rust bindings to the C side of the kernel.
+It depends on ``libclang``.
+
Make
----
-You will need GNU make 3.81 or later to build the kernel.
+You will need GNU make 3.82 or later to build the kernel.
Bash
----
@@ -348,6 +373,12 @@ Sphinx
Please see :ref:`sphinx_install` in :ref:`Documentation/doc-guide/sphinx.rst <sphinxdoc>`
for details about Sphinx requirements.
+rustdoc
+-------
+
+``rustdoc`` is used to generate the documentation for Rust code. Please see
+Documentation/rust/general-information.rst for more information.
+
Getting updated software
========================
@@ -364,6 +395,16 @@ Clang/LLVM
- :ref:`Getting LLVM <getting_llvm>`.
+Rust
+----
+
+- Documentation/rust/quick-start.rst.
+
+bindgen
+-------
+
+- Documentation/rust/quick-start.rst.
+
Make
----
diff --git a/Documentation/process/code-of-conduct-interpretation.rst b/Documentation/process/code-of-conduct-interpretation.rst
index e899f14a4ba2..922e0b547bc3 100644
--- a/Documentation/process/code-of-conduct-interpretation.rst
+++ b/Documentation/process/code-of-conduct-interpretation.rst
@@ -51,7 +51,7 @@ the Technical Advisory Board (TAB) or other maintainers if you're
uncertain how to handle situations that come up. It will not be
considered a violation report unless you want it to be. If you are
uncertain about approaching the TAB or any other maintainers, please
-reach out to our conflict mediator, Mishi Choudhary <mishi@linux.com>.
+reach out to our conflict mediator, Joanna Lee <joanna.lee@gesmer.com>.
In the end, "be kind to each other" is really what the end goal is for
everybody. We know everyone is human and we all fail at times, but the
@@ -127,10 +127,12 @@ are listed at https://kernel.org/code-of-conduct.html. Members can not
access reports made before they joined or after they have left the
committee.
-The initial Code of Conduct Committee consists of volunteer members of
-the TAB, as well as a professional mediator acting as a neutral third
-party. The first task of the committee is to establish documented
-processes, which will be made public.
+The Code of Conduct Committee consists of volunteer community members
+appointed by the TAB, as well as a professional mediator acting as a
+neutral third party. The processes the Code of Conduct committee will
+use to address reports is varied and will depend on the individual
+circumstance, however, this file serves as documentation for the
+general process used.
Any member of the committee, including the mediator, can be contacted
directly if a reporter does not wish to include the full committee in a
@@ -141,16 +143,16 @@ processes (see above) and consults with the TAB as needed and
appropriate, for instance to request and receive information about the
kernel community.
-Any decisions by the committee will be brought to the TAB, for
-implementation of enforcement with the relevant maintainers if needed.
-A decision by the Code of Conduct Committee can be overturned by the TAB
-by a two-thirds vote.
+Any decisions regarding enforcement recommendations will be brought to
+the TAB for implementation of enforcement with the relevant maintainers
+if needed. A decision by the Code of Conduct Committee can be overturned
+by the TAB by a two-thirds vote.
At quarterly intervals, the Code of Conduct Committee and TAB will
provide a report summarizing the anonymised reports that the Code of
Conduct committee has received and their status, as well details of any
overridden decisions including complete and identifiable voting details.
-We expect to establish a different process for Code of Conduct Committee
-staffing beyond the bootstrap period. This document will be updated
-with that information when this occurs.
+Because how we interpret and enforce the Code of Conduct will evolve over
+time, this document will be updated when necessary to reflect any
+changes.
diff --git a/Documentation/process/coding-style.rst b/Documentation/process/coding-style.rst
index 03eb53fd029a..007e49ef6cec 100644
--- a/Documentation/process/coding-style.rst
+++ b/Documentation/process/coding-style.rst
@@ -1186,6 +1186,68 @@ expression used. For instance:
#endif /* CONFIG_SOMETHING */
+22) Do not crash the kernel
+---------------------------
+
+In general, the decision to crash the kernel belongs to the user, rather
+than to the kernel developer.
+
+Avoid panic()
+*************
+
+panic() should be used with care and primarily only during system boot.
+panic() is, for example, acceptable when running out of memory during boot and
+not being able to continue.
+
+Use WARN() rather than BUG()
+****************************
+
+Do not add new code that uses any of the BUG() variants, such as BUG(),
+BUG_ON(), or VM_BUG_ON(). Instead, use a WARN*() variant, preferably
+WARN_ON_ONCE(), and possibly with recovery code. Recovery code is not
+required if there is no reasonable way to at least partially recover.
+
+"I'm too lazy to do error handling" is not an excuse for using BUG(). Major
+internal corruptions with no way of continuing may still use BUG(), but need
+good justification.
+
+Use WARN_ON_ONCE() rather than WARN() or WARN_ON()
+**************************************************
+
+WARN_ON_ONCE() is generally preferred over WARN() or WARN_ON(), because it
+is common for a given warning condition, if it occurs at all, to occur
+multiple times. This can fill up and wrap the kernel log, and can even slow
+the system enough that the excessive logging turns into its own, additional
+problem.
+
+Do not WARN lightly
+*******************
+
+WARN*() is intended for unexpected, this-should-never-happen situations.
+WARN*() macros are not to be used for anything that is expected to happen
+during normal operation. These are not pre- or post-condition asserts, for
+example. Again: WARN*() must not be used for a condition that is expected
+to trigger easily, for example, by user space actions. pr_warn_once() is a
+possible alternative, if you need to notify the user of a problem.
+
+Do not worry about panic_on_warn users
+**************************************
+
+A few more words about panic_on_warn: Remember that ``panic_on_warn`` is an
+available kernel option, and that many users set this option. This is why
+there is a "Do not WARN lightly" writeup, above. However, the existence of
+panic_on_warn users is not a valid reason to avoid the judicious use
+WARN*(). That is because, whoever enables panic_on_warn has explicitly
+asked the kernel to crash if a WARN*() fires, and such users must be
+prepared to deal with the consequences of a system that is somewhat more
+likely to crash.
+
+Use BUILD_BUG_ON() for compile-time assertions
+**********************************************
+
+The use of BUILD_BUG_ON() is acceptable and encouraged, because it is a
+compile-time assertion that has no effect at runtime.
+
Appendix I) References
----------------------
diff --git a/Documentation/process/deprecated.rst b/Documentation/process/deprecated.rst
index a6e36d9c3d14..c8fd53a11a20 100644
--- a/Documentation/process/deprecated.rst
+++ b/Documentation/process/deprecated.rst
@@ -138,17 +138,20 @@ be NUL terminated. This can lead to various linear read overflows and
other misbehavior due to the missing termination. It also NUL-pads
the destination buffer if the source contents are shorter than the
destination buffer size, which may be a needless performance penalty
-for callers using only NUL-terminated strings. The safe replacement is
+for callers using only NUL-terminated strings.
+
+When the destination is required to be NUL-terminated, the replacement is
strscpy(), though care must be given to any cases where the return value
of strncpy() was used, since strscpy() does not return a pointer to the
destination, but rather a count of non-NUL bytes copied (or negative
errno when it truncates). Any cases still needing NUL-padding should
instead use strscpy_pad().
-If a caller is using non-NUL-terminated strings, strncpy() can
-still be used, but destinations should be marked with the `__nonstring
+If a caller is using non-NUL-terminated strings, strtomem() should be
+used, and the destinations should be marked with the `__nonstring
<https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html>`_
-attribute to avoid future compiler warnings.
+attribute to avoid future compiler warnings. For cases still needing
+NUL-padding, strtomem_pad() can be used.
strlcpy()
---------
diff --git a/Documentation/process/email-clients.rst b/Documentation/process/email-clients.rst
index 16586f6cc888..fc2c46f3f82d 100644
--- a/Documentation/process/email-clients.rst
+++ b/Documentation/process/email-clients.rst
@@ -277,36 +277,61 @@ Thunderbird (GUI)
Thunderbird is an Outlook clone that likes to mangle text, but there are ways
to coerce it into behaving.
+After doing the modifications, this includes installing the extensions,
+you need to restart Thunderbird.
+
- Allow use of an external editor:
- The easiest thing to do with Thunderbird and patches is to use an
- "external editor" extension and then just use your favorite ``$EDITOR``
- for reading/merging patches into the body text. To do this, download
- and install the extension, then add a button for it using
- :menuselection:`View-->Toolbars-->Customize...` and finally just click on it
- when in the :menuselection:`Compose` dialog.
-
- Please note that "external editor" requires that your editor must not
- fork, or in other words, the editor must not return before closing.
- You may have to pass additional flags or change the settings of your
- editor. Most notably if you are using gvim then you must pass the -f
- option to gvim by putting ``/usr/bin/gvim -f`` (if the binary is in
- ``/usr/bin``) to the text editor field in :menuselection:`external editor`
- settings. If you are using some other editor then please read its manual
- to find out how to do this.
+
+ The easiest thing to do with Thunderbird and patches is to use extensions
+ which open your favorite external editor.
+
+ Here are some example extensions which are capable of doing this.
+
+ - "External Editor Revived"
+
+ https://github.com/Frederick888/external-editor-revived
+
+ https://addons.thunderbird.net/en-GB/thunderbird/addon/external-editor-revived/
+
+ It requires installing a "native messaging host".
+ Please read the wiki which can be found here:
+ https://github.com/Frederick888/external-editor-revived/wiki
+
+ - "External Editor"
+
+ https://github.com/exteditor/exteditor
+
+ To do this, download and install the extension, then open the
+ :menuselection:`compose` window, add a button for it using
+ :menuselection:`View-->Toolbars-->Customize...`
+ then just click on the new button when you wish to use the external editor.
+
+ Please note that "External Editor" requires that your editor must not
+ fork, or in other words, the editor must not return before closing.
+ You may have to pass additional flags or change the settings of your
+ editor. Most notably if you are using gvim then you must pass the -f
+ option to gvim by putting ``/usr/bin/gvim --nofork"`` (if the binary is in
+ ``/usr/bin``) to the text editor field in :menuselection:`external editor`
+ settings. If you are using some other editor then please read its manual
+ to find out how to do this.
To beat some sense out of the internal editor, do this:
-- Edit your Thunderbird config settings so that it won't use ``format=flowed``.
- Go to :menuselection:`edit-->preferences-->advanced-->config editor` to bring up
- the thunderbird's registry editor.
+- Edit your Thunderbird config settings so that it won't use ``format=flowed``!
+ Go to your main window and find the button for your main dropdown menu.
+ :menuselection:`Main Menu-->Preferences-->General-->Config Editor...`
+ to bring up the thunderbird's registry editor.
-- Set ``mailnews.send_plaintext_flowed`` to ``false``
+ - Set ``mailnews.send_plaintext_flowed`` to ``false``
-- Set ``mailnews.wraplength`` from ``72`` to ``0``
+ - Set ``mailnews.wraplength`` from ``72`` to ``0``
-- :menuselection:`View-->Message Body As-->Plain Text`
+- Don't write HTML messages! Go to the main window
+ :menuselection:`Main Menu-->Account Settings-->youracc@server.something-->Composition & Addressing`!
+ There you can disable the option "Compose messages in HTML format".
-- :menuselection:`View-->Character Encoding-->Unicode (UTF-8)`
+- Open messages only as plain text! Go to the main window
+ :menuselection:`Main Menu-->View-->Message Body As-->Plain Text`!
TkRat (GUI)
***********
diff --git a/Documentation/process/embargoed-hardware-issues.rst b/Documentation/process/embargoed-hardware-issues.rst
index 95999302d279..b6b4481e2474 100644
--- a/Documentation/process/embargoed-hardware-issues.rst
+++ b/Documentation/process/embargoed-hardware-issues.rst
@@ -244,7 +244,7 @@ disclosure of a particular issue, unless requested by a response team or by
an involved disclosed party. The current ambassadors list:
============= ========================================================
- AMD Tom Lendacky <tom.lendacky@amd.com>
+ AMD Tom Lendacky <thomas.lendacky@amd.com>
Ampere Darren Hart <darren@os.amperecomputing.com>
ARM Catalin Marinas <catalin.marinas@arm.com>
IBM Power Anton Blanchard <anton@linux.ibm.com>
@@ -264,6 +264,9 @@ an involved disclosed party. The current ambassadors list:
Amazon
Google Kees Cook <keescook@chromium.org>
+
+ GCC
+ LLVM Nick Desaulniers <ndesaulniers@google.com>
============= ========================================================
If you want your organization to be added to the ambassadors list, please
diff --git a/Documentation/process/howto.rst b/Documentation/process/howto.rst
index e4beeca57e5f..cd6997a9d203 100644
--- a/Documentation/process/howto.rst
+++ b/Documentation/process/howto.rst
@@ -105,8 +105,8 @@ required reading:
patches if these rules are followed, and many people will only
review code if it is in the proper style.
- :ref:`Documentation/process/submitting-patches.rst <submittingpatches>` and :ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
- These files describe in explicit detail how to successfully create
+ :ref:`Documentation/process/submitting-patches.rst <submittingpatches>`
+ This file describes in explicit detail how to successfully create
and send a patch, including (but not limited to):
- Email contents
diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
index 3587dae4d0ef..d4b6217472b0 100644
--- a/Documentation/process/index.rst
+++ b/Documentation/process/index.rst
@@ -5,6 +5,7 @@
.. _process_index:
+=============================================
Working with the kernel development community
=============================================
@@ -40,7 +41,6 @@ Other guides to the community that are of interest to most developers are:
:maxdepth: 1
changes
- submitting-drivers
stable-api-nonsense
management-style
stable-kernel-rules
diff --git a/Documentation/process/kernel-docs.rst b/Documentation/process/kernel-docs.rst
index da9527502ef0..306ad373a002 100644
--- a/Documentation/process/kernel-docs.rst
+++ b/Documentation/process/kernel-docs.rst
@@ -1,9 +1,10 @@
.. _kernel_docs:
-Index of Documentation for People Interested in Writing and/or Understanding the Linux Kernel
-=============================================================================================
+Index of Further Kernel Documentation
+=====================================
- Juan-Mariano de Goyeneche <jmseyas@dit.upm.es>
+Initial Author: Juan-Mariano de Goyeneche (<jmseyas@dit.upm.es>;
+email address is defunct now.)
The need for a document like this one became apparent in the
linux-kernel mailing list as the same questions, asking for pointers
@@ -16,21 +17,16 @@ philosophy and design decisions behind this code.
Unfortunately, not many documents are available for beginners to
start. And, even if they exist, there was no "well-known" place which
-kept track of them. These lines try to cover this lack. All documents
-available on line known by the author are listed, while some reference
-books are also mentioned.
+kept track of them. These lines try to cover this lack.
PLEASE, if you know any paper not listed here or write a new document,
-send me an e-mail, and I'll include a reference to it here. Any
-corrections, ideas or comments are also welcomed.
+include a reference to it here, following the kernel's patch submission
+process. Any corrections, ideas or comments are also welcome.
-The papers that follow are listed in no particular order. All are
-cataloged with the following fields: the document's "Title", the
-"Author"/s, the "URL" where they can be found, some "Keywords" helpful
-when searching for specific topics, and a brief "Description" of the
-Document.
-
-Enjoy!
+All documents are cataloged with the following fields: the document's
+"Title", the "Author"/s, the "URL" where they can be found, some
+"Keywords" helpful when searching for specific topics, and a brief
+"Description" of the Document.
.. note::
@@ -83,6 +79,18 @@ On-line docs
Finally this trace-log is used as base for more a exact conceptual
exploration and description of the Linux TCP/IP implementation.*
+ * Title: **The Linux Kernel Module Programming Guide**
+
+ :Author: Peter Jay Salzman, Michael Burian, Ori Pomerantz, Bob Mottram,
+ Jim Huang.
+ :URL: https://sysprog21.github.io/lkmpg/
+ :Date: 2021
+ :Keywords: modules, GPL book, /proc, ioctls, system calls,
+ interrupt handlers .
+ :Description: A very nice GPL book on the topic of modules
+ programming. Lots of examples. Currently the new version is being
+ actively maintained at https://github.com/sysprog21/lkmpg.
+
* Title: **On submitting kernel Patches**
:Author: Andi Kleen
@@ -108,7 +116,7 @@ On-line docs
* Title: **Writing an ALSA Driver**
:Author: Takashi Iwai <tiwai@suse.de>
- :URL: http://www.alsa-project.org/~iwai/writing-an-alsa-driver/index.html
+ :URL: https://www.kernel.org/doc/html/latest/sound/kernel-api/writing-an-alsa-driver.html
:Date: 2005
:Keywords: ALSA, sound, soundcard, driver, lowlevel, hardware.
:Description: Advanced Linux Sound Architecture for developers,
@@ -126,17 +134,19 @@ On-line docs
describes how to write user-mode utilities for communicating with
Card Services.
- * Title: **The Linux Kernel Module Programming Guide**
-
- :Author: Peter Jay Salzman, Michael Burian, Ori Pomerantz, Bob Mottram,
- Jim Huang.
- :URL: https://sysprog21.github.io/lkmpg/
- :Date: 2021
- :Keywords: modules, GPL book, /proc, ioctls, system calls,
- interrupt handlers .
- :Description: A very nice GPL book on the topic of modules
- programming. Lots of examples. Currently the new version is being
- actively maintained at https://github.com/sysprog21/lkmpg.
+ * Title: **How NOT to write kernel drivers**
+
+ :Author: Arjan van de Ven.
+ :URL: https://landley.net/kdocs/ols/2002/ols2002-pages-545-555.pdf
+ :Date: 2002
+ :Keywords: driver.
+ :Description: Programming bugs and Do-nots in kernel driver development
+ :Abstract: *Quit a few tutorials, articles and books give an introduction
+ on how to write Linux kernel drivers. Unfortunately the things one
+ should NOT do in Linux kernel code is either only a minor appendix
+ or, more commonly, completely absent. This paper tries to briefly touch
+ the areas in which the most common and serious bugs and do-nots are
+ encountered.*
* Title: **Global spinlock list and usage**
diff --git a/Documentation/process/magic-number.rst b/Documentation/process/magic-number.rst
index f5ba36e96461..64b5948fc1d4 100644
--- a/Documentation/process/magic-number.rst
+++ b/Documentation/process/magic-number.rst
@@ -69,86 +69,17 @@ Changelog::
Magic Name Number Structure File
===================== ================ ======================== ==========================================
PG_MAGIC 'P' pg_{read,write}_hdr ``include/linux/pg.h``
-CMAGIC 0x0111 user ``include/linux/a.out.h``
-MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h``
-HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c``
APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c``
-DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c``
-DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c``
FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h``
-FF_MAGIC 0x4646 fc_info ``drivers/net/iph5526_novram.c``
-PTY_MAGIC 0x5001 ``drivers/char/pty.c``
-PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h``
-SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h``
SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h``
-STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
-SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
-AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
-MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
-TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
-USB_SERIAL_MAGIC 0x6702 usb_serial ``drivers/usb/serial/usb-serial.h``
-FULL_DUPLEX_MAGIC 0x6969 ``drivers/net/ethernet/dec/tulip/de2104x.c``
-USB_BLUETOOTH_MAGIC 0x6d02 usb_bluetooth ``drivers/usb/class/bluetty.c``
-RFCOMM_TTY_MAGIC 0x6d02 ``net/bluetooth/rfcomm/tty.c``
-USB_SERIAL_PORT_MAGIC 0x7301 usb_serial_port ``drivers/usb/serial/usb-serial.h``
-CG_MAGIC 0x00090255 ufs_cylinder_group ``include/linux/ufs_fs.h``
-LSEMAGIC 0x05091998 lse ``drivers/fc4/fc.c``
-RIEBL_MAGIC 0x09051990 ``drivers/net/atarilance.c``
-NBD_REQUEST_MAGIC 0x12560953 nbd_request ``include/linux/nbd.h``
-RED_MAGIC2 0x170fc2a5 (any) ``mm/slab.c``
BAYCOM_MAGIC 0x19730510 baycom_state ``drivers/net/baycom_epp.c``
-ISDN_X25IFACE_MAGIC 0x1e75a2b9 isdn_x25iface_proto_data ``drivers/isdn/isdn_x25iface.h``
-ECP_MAGIC 0x21504345 cdkecpsig ``include/linux/cdk.h``
-LSOMAGIC 0x27091997 lso ``drivers/fc4/fc.c``
-LSMAGIC 0x2a3b4d2a ls ``drivers/fc4/fc.c``
-WANPIPE_MAGIC 0x414C4453 sdla_{dump,exec} ``include/linux/wanpipe.h``
-CS_CARD_MAGIC 0x43525553 cs_card ``sound/oss/cs46xx.c``
-LABELCL_MAGIC 0x4857434c labelcl_info_s ``include/asm/ia64/sn/labelcl.h``
-ISDN_ASYNC_MAGIC 0x49344C01 modem_info ``include/linux/isdn.h``
-CTC_ASYNC_MAGIC 0x49344C01 ctc_tty_info ``drivers/s390/net/ctctty.c``
-ISDN_NET_MAGIC 0x49344C02 isdn_net_local_s ``drivers/isdn/i4l/isdn_net_lib.h``
-SAVEKMSG_MAGIC2 0x4B4D5347 savekmsg ``arch/*/amiga/config.c``
-CS_STATE_MAGIC 0x4c4f4749 cs_state ``sound/oss/cs46xx.c``
-SLAB_C_MAGIC 0x4f17a36d kmem_cache ``mm/slab.c``
-COW_MAGIC 0x4f4f4f4d cow_header_v1 ``arch/um/drivers/ubd_user.c``
-I810_CARD_MAGIC 0x5072696E i810_card ``sound/oss/i810_audio.c``
-TRIDENT_CARD_MAGIC 0x5072696E trident_card ``sound/oss/trident.c``
-ROUTER_MAGIC 0x524d4157 wan_device [in ``wanrouter.h`` pre 3.9]
-SAVEKMSG_MAGIC1 0x53415645 savekmsg ``arch/*/amiga/config.c``
-GDA_MAGIC 0x58464552 gda ``arch/mips/include/asm/sn/gda.h``
-RED_MAGIC1 0x5a2cf071 (any) ``mm/slab.c``
-EEPROM_MAGIC_VALUE 0x5ab478d2 lanai_dev ``drivers/atm/lanai.c``
HDLCDRV_MAGIC 0x5ac6e778 hdlcdrv_state ``include/linux/hdlcdrv.h``
-PCXX_MAGIC 0x5c6df104 channel ``drivers/char/pcxx.h``
KV_MAGIC 0x5f4b565f kernel_vars_s ``arch/mips/include/asm/sn/klkernvars.h``
-I810_STATE_MAGIC 0x63657373 i810_state ``sound/oss/i810_audio.c``
-TRIDENT_STATE_MAGIC 0x63657373 trient_state ``sound/oss/trident.c``
-M3_CARD_MAGIC 0x646e6f50 m3_card ``sound/oss/maestro3.c``
-FW_HEADER_MAGIC 0x65726F66 fw_header ``drivers/atm/fore200e.h``
-SLOT_MAGIC 0x67267321 slot ``drivers/hotplug/cpqphp.h``
-SLOT_MAGIC 0x67267322 slot ``drivers/hotplug/acpiphp.h``
-LO_MAGIC 0x68797548 nbd_device ``include/linux/nbd.h``
-M3_STATE_MAGIC 0x734d724d m3_state ``sound/oss/maestro3.c``
-VMALLOC_MAGIC 0x87654320 snd_alloc_track ``sound/core/memory.c``
-KMALLOC_MAGIC 0x87654321 snd_alloc_track ``sound/core/memory.c``
-PWC_MAGIC 0x89DC10AB pwc_device ``drivers/usb/media/pwc.h``
-NBD_REPLY_MAGIC 0x96744668 nbd_reply ``include/linux/nbd.h``
-ENI155_MAGIC 0xa54b872d midway_eprom ``drivers/atm/eni.h``
CODA_MAGIC 0xC0DAC0DA coda_file_info ``fs/coda/coda_fs_i.h``
YAM_MAGIC 0xF10A7654 yam_port ``drivers/net/hamradio/yam.c``
CCB_MAGIC 0xf2691ad2 ccb ``drivers/scsi/ncr53c8xx.c``
QUEUE_MAGIC_FREE 0xf7e1c9a3 queue_entry ``drivers/scsi/arm/queue.c``
QUEUE_MAGIC_USED 0xf7e1cc33 queue_entry ``drivers/scsi/arm/queue.c``
-HTB_CMAGIC 0xFEFAFEF1 htb_class ``net/sched/sch_htb.c``
NMI_MAGIC 0x48414d4d455201 nmi_s ``arch/mips/include/asm/sn/nmi.h``
===================== ================ ======================== ==========================================
-
-Note that there are also defined special per-driver magic numbers in sound
-memory management. See ``include/sound/sndmagic.h`` for complete list of them. Many
-OSS sound drivers have their magic numbers constructed from the soundcard PCI
-ID - these are not listed here as well.
-
-HFS is another larger user of magic numbers - you can find them in
-``fs/hfs/hfs.h``.
diff --git a/Documentation/process/maintainer-pgp-guide.rst b/Documentation/process/maintainer-pgp-guide.rst
index 29e7d7b1cd44..40bfbd3b7648 100644
--- a/Documentation/process/maintainer-pgp-guide.rst
+++ b/Documentation/process/maintainer-pgp-guide.rst
@@ -121,57 +121,56 @@ edit your ``~/.gnupg/gpg-agent.conf`` file to set your own values::
to remove anything you had in place for older versions of GnuPG, as
it may not be doing the right thing any more.
-Set up a refresh cronjob
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-You will need to regularly refresh your keyring in order to get the
-latest changes on other people's public keys, which is best done with a
-daily cronjob::
-
- @daily /usr/bin/gpg2 --refresh >/dev/null 2>&1
-
-Check the full path to your ``gpg`` or ``gpg2`` command and use the
-``gpg2`` command if regular ``gpg`` for you is the legacy GnuPG v.1.
-
-.. _master_key:
+.. _protect_your_key:
-Protect your master PGP key
-===========================
+Protect your PGP key
+====================
This guide assumes that you already have a PGP key that you use for Linux
kernel development purposes. If you do not yet have one, please see the
"`Protecting Code Integrity`_" document mentioned earlier for guidance
on how to create a new one.
-You should also make a new key if your current one is weaker than 2048 bits
-(RSA).
-
-Master key vs. Subkeys
-----------------------
-
-Subkeys are fully independent PGP keypairs that are tied to the "master"
-key using certifying key signatures (certificates). It is important to
-understand the following:
-
-1. There are no technical differences between the "master key" and "subkeys."
-2. At creation time, we assign functional limitations to each key by
- giving it specific capabilities.
-3. A PGP key can have 4 capabilities:
-
- - **[S]** key can be used for signing
- - **[E]** key can be used for encryption
- - **[A]** key can be used for authentication
- - **[C]** key can be used for certifying other keys
-
-4. A single key may have multiple capabilities.
-5. A subkey is fully independent from the master key. A message
- encrypted to a subkey cannot be decrypted with the master key. If you
- lose your private subkey, it cannot be recreated from the master key
- in any way.
-
-The key carrying the **[C]** (certify) capability is considered the
-"master" key because it is the only key that can be used to indicate
-relationship with other keys. Only the **[C]** key can be used to:
+You should also make a new key if your current one is weaker than 2048
+bits (RSA).
+
+Understanding PGP Subkeys
+-------------------------
+
+A PGP key rarely consists of a single keypair -- usually it is a
+collection of independent subkeys that can be used for different
+purposes based on their capabilities, assigned at their creation time.
+PGP defines four capabilities that a key can have:
+
+- **[S]** keys can be used for signing
+- **[E]** keys can be used for encryption
+- **[A]** keys can be used for authentication
+- **[C]** keys can be used for certifying other keys
+
+The key with the **[C]** capability is often called the "master" key,
+but this terminology is misleading because it implies that the Certify
+key can be used in place of any of other subkey on the same chain (like
+a physical "master key" can be used to open the locks made for other
+keys). Since this is not the case, this guide will refer to it as "the
+Certify key" to avoid any ambiguity.
+
+It is critical to fully understand the following:
+
+1. All subkeys are fully independent from each other. If you lose a
+ private subkey, it cannot be restored or recreated from any other
+ private key on your chain.
+2. With the exception of the Certify key, there can be multiple subkeys
+ with identical capabilities (e.g. you can have 2 valid encryption
+ subkeys, 3 valid signing subkeys, but only one valid certification
+ subkey). All subkeys are fully independent -- a message encrypted to
+ one **[E]** subkey cannot be decrypted with any other **[E]** subkey
+ you may also have.
+3. A single subkey may have multiple capabilities (e.g. your **[C]** key
+ can also be your **[S]** key).
+
+The key carrying the **[C]** (certify) capability is the only key that
+can be used to indicate relationship with other keys. Only the **[C]**
+key can be used to:
- add or revoke other keys (subkeys) with S/E/A capabilities
- add, change or revoke identities (uids) associated with the key
@@ -180,7 +179,7 @@ relationship with other keys. Only the **[C]** key can be used to:
By default, GnuPG creates the following when generating new keys:
-- A master key carrying both Certify and Sign capabilities (**[SC]**)
+- One subkey carrying both Certify and Sign capabilities (**[SC]**)
- A separate subkey with the Encryption capability (**[E]**)
If you used the default parameters when generating your key, then that
@@ -192,9 +191,6 @@ for example::
uid [ultimate] Alice Dev <adev@kernel.org>
ssb rsa2048 2018-01-23 [E] [expires: 2020-01-23]
-Any key carrying the **[C]** capability is your master key, regardless
-of any other capabilities it may have assigned to it.
-
The long line under the ``sec`` entry is your key fingerprint --
whenever you see ``[fpr]`` in the examples below, that 40-character
string is what it refers to.
@@ -215,37 +211,30 @@ strong passphrase. To set it or change it, use::
Create a separate Signing subkey
--------------------------------
-Our goal is to protect your master key by moving it to offline media, so
-if you only have a combined **[SC]** key, then you should create a separate
-signing subkey::
+Our goal is to protect your Certify key by moving it to offline media,
+so if you only have a combined **[SC]** key, then you should create a
+separate signing subkey::
$ gpg --quick-addkey [fpr] ed25519 sign
-Remember to tell the keyservers about this change, so others can pull down
-your new subkey::
-
- $ gpg --send-key [fpr]
-
.. note:: ECC support in GnuPG
GnuPG 2.1 and later has full support for Elliptic Curve
Cryptography, with ability to combine ECC subkeys with traditional
- RSA master keys. The main upside of ECC cryptography is that it is
- much faster computationally and creates much smaller signatures when
+ RSA keys. The main upside of ECC cryptography is that it is much
+ faster computationally and creates much smaller signatures when
compared byte for byte with 2048+ bit RSA keys. Unless you plan on
using a smartcard device that does not support ECC operations, we
recommend that you create an ECC signing subkey for your kernel
work.
- If for some reason you prefer to stay with RSA subkeys, just replace
- "ed25519" with "rsa2048" in the above command. Additionally, if you
- plan to use a hardware device that does not support ED25519 ECC
- keys, like Nitrokey Pro or a Yubikey, then you should use
- "nistp256" instead or "ed25519."
+ Note, that if you plan to use a hardware device that does not
+ support ED25519 ECC keys, you should choose "nistp256" instead or
+ "ed25519."
-Back up your master key for disaster recovery
----------------------------------------------
+Back up your Certify key for disaster recovery
+----------------------------------------------
The more signatures you have on your PGP key from other developers, the
more reasons you have to create a backup version that lives on something
@@ -277,9 +266,7 @@ home, such as your bank vault.
Your printer is probably no longer a simple dumb device connected to
your parallel port, but since the output is still encrypted with
your passphrase, printing out even to "cloud-integrated" modern
- printers should remain a relatively safe operation. One option is to
- change the passphrase on your master key immediately after you are
- done with paperkey.
+ printers should remain a relatively safe operation.
Back up your whole GnuPG directory
----------------------------------
@@ -300,7 +287,7 @@ will use for backup purposes. You will need to encrypt them using LUKS
-- refer to your distro's documentation on how to accomplish this.
For the encryption passphrase, you can use the same one as on your
-master key.
+PGP key.
Once the encryption process is over, re-insert the USB drive and make
sure it gets properly mounted. Copy your entire ``.gnupg`` directory
@@ -319,7 +306,7 @@ far away, because you'll need to use it every now and again for things
like editing identities, adding or revoking subkeys, or signing other
people's keys.
-Remove the master key from your homedir
+Remove the Certify key from your homedir
----------------------------------------
The files in our home directory are not as well protected as we like to
@@ -334,7 +321,7 @@ think. They can be leaked or stolen via many different means:
Protecting your key with a good passphrase greatly helps reduce the risk
of any of the above, but passphrases can be discovered via keyloggers,
shoulder-surfing, or any number of other means. For this reason, the
-recommended setup is to remove your master key from your home directory
+recommended setup is to remove your Certify key from your home directory
and store it on offline storage.
.. warning::
@@ -343,7 +330,7 @@ and store it on offline storage.
your GnuPG directory in its entirety. What we are about to do will
render your key useless if you do not have a usable backup!
-First, identify the keygrip of your master key::
+First, identify the keygrip of your Certify key::
$ gpg --with-keygrip --list-key [fpr]
@@ -359,7 +346,7 @@ The output will be something like this::
Keygrip = 3333000000000000000000000000000000000000
Find the keygrip entry that is beneath the ``pub`` line (right under the
-master key fingerprint). This will correspond directly to a file in your
+Certify key fingerprint). This will correspond directly to a file in your
``~/.gnupg`` directory::
$ cd ~/.gnupg/private-keys-v1.d
@@ -369,13 +356,13 @@ master key fingerprint). This will correspond directly to a file in your
3333000000000000000000000000000000000000.key
All you have to do is simply remove the .key file that corresponds to
-the master keygrip::
+the Certify key keygrip::
$ cd ~/.gnupg/private-keys-v1.d
$ rm 1111000000000000000000000000000000000000.key
Now, if you issue the ``--list-secret-keys`` command, it will show that
-the master key is missing (the ``#`` indicates it is not available)::
+the Certify key is missing (the ``#`` indicates it is not available)::
$ gpg --list-secret-keys
sec# rsa2048 2018-01-24 [SC] [expires: 2020-01-24]
@@ -404,7 +391,7 @@ file, which still contains your private keys.
Move the subkeys to a dedicated crypto device
=============================================
-Even though the master key is now safe from being leaked or stolen, the
+Even though the Certify key is now safe from being leaked or stolen, the
subkeys are still in your home directory. Anyone who manages to get
their hands on those will be able to decrypt your communication or fake
your signatures (if they know the passphrase). Furthermore, each time a
@@ -447,7 +434,8 @@ functionality. There are several options available:
- `Yubikey 5`_: proprietary hardware and software, but cheaper than
Nitrokey Pro and comes available in the USB-C form that is more useful
with newer laptops. Offers additional security features such as FIDO
- U2F, among others, and now finally supports ECC keys (NISTP).
+ U2F, among others, and now finally supports NISTP and ED25519 ECC
+ keys.
`LWN has a good review`_ of some of the above models, as well as several
others. Your choice will depend on cost, shipping availability in your
@@ -460,7 +448,7 @@ geographical region, and open/proprietary hardware considerations.
Foundation.
.. _`Nitrokey Start`: https://shop.nitrokey.com/shop/product/nitrokey-start-6
-.. _`Nitrokey Pro 2`: https://shop.nitrokey.com/shop/product/nitrokey-pro-2-3
+.. _`Nitrokey Pro 2`: https://shop.nitrokey.com/shop/product/nkpr2-nitrokey-pro-2-3
.. _`Yubikey 5`: https://www.yubico.com/products/yubikey-5-overview/
.. _Gnuk: https://www.fsij.org/doc-gnuk/
.. _`LWN has a good review`: https://lwn.net/Articles/736231/
@@ -627,10 +615,10 @@ Other common GnuPG operations
Here is a quick reference for some common operations you'll need to do
with your PGP key.
-Mounting your master key offline storage
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Mounting your safe offline storage
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-You will need your master key for any of the operations below, so you
+You will need your Certify key for any of the operations below, so you
will first need to mount your backup offline storage and tell GnuPG to
use it::
@@ -644,7 +632,7 @@ your regular home directory location).
Extending key expiration date
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-The master key has the default expiration date of 2 years from the date
+The Certify key has the default expiration date of 2 years from the date
of creation. This is done both for security reasons and to make obsolete
keys eventually disappear from keyservers.
@@ -685,6 +673,7 @@ remote end.
.. _`Agent Forwarding over SSH`: https://wiki.gnupg.org/AgentForwarding
+.. _pgp_with_git:
Using PGP with Git
==================
@@ -828,6 +817,63 @@ You can tell git to always sign commits::
.. _verify_identities:
+
+How to work with signed patches
+-------------------------------
+
+It is possible to use your PGP key to sign patches sent to kernel
+developer mailing lists. Since existing email signature mechanisms
+(PGP-Mime or PGP-inline) tend to cause problems with regular code
+review tasks, you should use the tool kernel.org created for this
+purpose that puts cryptographic attestation signatures into message
+headers (a-la DKIM):
+
+- `Patatt Patch Attestation`_
+
+.. _`Patatt Patch Attestation`: https://pypi.org/project/patatt/
+
+Installing and configuring patatt
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Patatt is packaged for many distributions already, so please check there
+first. You can also install it from pypi using "``pip install patatt``".
+
+If you already have your PGP key configured with git (via the
+``user.signingKey`` configuration parameter), then patatt requires no
+further configuration. You can start signing your patches by installing
+the git-send-email hook in the repository you want::
+
+ patatt install-hook
+
+Now any patches you send with ``git send-email`` will be automatically
+signed with your cryptographic signature.
+
+Checking patatt signatures
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+If you are using ``b4`` to retrieve and apply patches, then it will
+automatically attempt to verify all DKIM and patatt signatures it
+encounters, for example::
+
+ $ b4 am 20220720205013.890942-1-broonie@kernel.org
+ [...]
+ Checking attestation on all messages, may take a moment...
+ ---
+ ✓ [PATCH v1 1/3] kselftest/arm64: Correct buffer allocation for SVE Z registers
+ ✓ [PATCH v1 2/3] arm64/sve: Document our actual ABI for clearing registers on syscall
+ ✓ [PATCH v1 3/3] kselftest/arm64: Enforce actual ABI for SVE syscalls
+ ---
+ ✓ Signed: openpgp/broonie@kernel.org
+ ✓ Signed: DKIM/kernel.org
+
+.. note::
+
+ Patatt and b4 are still in active development and you should check
+ the latest documentation for these projects for any new or updated
+ features.
+
+.. _kernel_identities:
+
How to verify kernel developer identities
=========================================
@@ -899,65 +945,17 @@ the new default in GnuPG v2). To set it, add (or modify) the
trust-model tofu+pgp
-How to use keyservers (more) safely
------------------------------------
-
-If you get a "No public key" error when trying to validate someone's
-tag, then you should attempt to lookup that key using a keyserver. It is
-important to keep in mind that there is absolutely no guarantee that the
-key you retrieve from PGP keyservers belongs to the actual person --
-that much is by design. You are supposed to use the Web of Trust to
-establish key validity.
-
-How to properly maintain the Web of Trust is beyond the scope of this
-document, simply because doing it properly requires both effort and
-dedication that tends to be beyond the caring threshold of most human
-beings. Here are some shortcuts that will help you reduce the risk of
-importing a malicious key.
-
-First, let's say you've tried to run ``git verify-tag`` but it returned
-an error saying the key is not found::
-
- $ git verify-tag sunxi-fixes-for-4.15-2
- gpg: Signature made Sun 07 Jan 2018 10:51:55 PM EST
- gpg: using RSA key DA73759BF8619E484E5A3B47389A54219C0F2430
- gpg: issuer "wens@...org"
- gpg: Can't check signature: No public key
-
-Let's query the keyserver for more info about that key fingerprint (the
-fingerprint probably belongs to a subkey, so we can't use it directly
-without finding out the ID of the master key it is associated with)::
-
- $ gpg --search DA73759BF8619E484E5A3B47389A54219C0F2430
- gpg: data source: hkp://keys.gnupg.net
- (1) Chen-Yu Tsai <wens@...org>
- 4096 bit RSA key C94035C21B4F2AEB, created: 2017-03-14, expires: 2019-03-15
- Keys 1-1 of 1 for "DA73759BF8619E484E5A3B47389A54219C0F2430". Enter number(s), N)ext, or Q)uit > q
-
-Locate the ID of the master key in the output, in our example
-``C94035C21B4F2AEB``. Now display the key of Linus Torvalds that you
-have on your keyring::
-
- $ gpg --list-key torvalds@kernel.org
- pub rsa2048 2011-09-20 [SC]
- ABAF11C65A2970B130ABE3C479BE3E4300411886
- uid [ unknown] Linus Torvalds <torvalds@kernel.org>
- sub rsa2048 2011-09-20 [E]
-
-Next, find a trust path from Linus Torvalds to the key-id you found via ``gpg
---search`` of the unknown key. For this, you can use several tools including
-https://github.com/mricon/wotmate,
-https://git.kernel.org/pub/scm/docs/kernel/pgpkeys.git/tree/graphs, and
-https://the.earth.li/~noodles/pathfind.html.
-
-If you get a few decent trust paths, then it's a pretty good indication
-that it is a valid key. You can add it to your keyring from the
-keyserver now::
-
- $ gpg --recv-key C94035C21B4F2AEB
-
-This process is not perfect, and you are obviously trusting the
-administrators of the PGP Pathfinder service to not be malicious (in
-fact, this goes against :ref:`devs_not_infra`). However, if you
-do not carefully maintain your own web of trust, then it is a marked
-improvement over blindly trusting keyservers.
+Using the kernel.org web of trust repository
+--------------------------------------------
+
+Kernel.org maintains a git repository with developers' public keys as a
+replacement for replicating keyserver networks that have gone mostly
+dark in the past few years. The full documentation for how to set up
+that repository as your source of public keys can be found here:
+
+- `Kernel developer PGP Keyring`_
+
+If you are a kernel developer, please consider submitting your key for
+inclusion into that keyring.
+
+.. _`Kernel developer PGP Keyring`: https://korg.docs.kernel.org/pgpkeys.html
diff --git a/Documentation/process/stable-kernel-rules.rst b/Documentation/process/stable-kernel-rules.rst
index c61865e91f52..2fd8aa593a28 100644
--- a/Documentation/process/stable-kernel-rules.rst
+++ b/Documentation/process/stable-kernel-rules.rst
@@ -97,6 +97,12 @@ text, like this:
commit <sha1> upstream.
+or alternatively:
+
+.. code-block:: none
+
+ [ Upstream commit <sha1> ]
+
Additionally, some patches submitted via :ref:`option_1` may have additional
patch prerequisites which can be cherry-picked. This can be specified in the
following format in the sign-off area:
diff --git a/Documentation/process/submitting-drivers.rst b/Documentation/process/submitting-drivers.rst
deleted file mode 100644
index 8413b693d10d..000000000000
--- a/Documentation/process/submitting-drivers.rst
+++ /dev/null
@@ -1,194 +0,0 @@
-.. _submittingdrivers:
-
-Submitting Drivers For The Linux Kernel
-=======================================
-
-This document is intended to explain how to submit device drivers to the
-various kernel trees. Note that if you are interested in video card drivers
-you should probably talk to XFree86 (https://www.xfree86.org/) and/or X.Org
-(https://x.org/) instead.
-
-.. note::
-
- This document is old and has seen little maintenance in recent years; it
- should probably be updated or, perhaps better, just deleted. Most of
- what is here can be found in the other development documents anyway.
-
- Oh, and we don't really recommend submitting changes to XFree86 :)
-
-Also read the :ref:`Documentation/process/submitting-patches.rst <submittingpatches>`
-document.
-
-
-Allocating Device Numbers
--------------------------
-
-Major and minor numbers for block and character devices are allocated
-by the Linux assigned name and number authority (currently this is
-Torben Mathiasen). The site is https://www.lanana.org/. This
-also deals with allocating numbers for devices that are not going to
-be submitted to the mainstream kernel.
-See :ref:`Documentation/admin-guide/devices.rst <admin_devices>`
-for more information on this.
-
-If you don't use assigned numbers then when your device is submitted it will
-be given an assigned number even if that is different from values you may
-have shipped to customers before.
-
-Who To Submit Drivers To
-------------------------
-
-Linux 2.0:
- No new drivers are accepted for this kernel tree.
-
-Linux 2.2:
- No new drivers are accepted for this kernel tree.
-
-Linux 2.4:
- If the code area has a general maintainer then please submit it to
- the maintainer listed in MAINTAINERS in the kernel file. If the
- maintainer does not respond or you cannot find the appropriate
- maintainer then please contact Willy Tarreau <w@1wt.eu>.
-
-Linux 2.6 and upper:
- The same rules apply as 2.4 except that you should follow linux-kernel
- to track changes in API's. The final contact point for Linux 2.6+
- submissions is Andrew Morton.
-
-What Criteria Determine Acceptance
-----------------------------------
-
-Licensing:
- The code must be released to us under the
- GNU General Public License. If you wish the driver to be
- useful to other communities such as BSD you may release
- under multiple licenses. If you choose to release under
- licenses other than the GPL, you should include your
- rationale for your license choices in your cover letter.
- See accepted licenses at include/linux/module.h
-
-Copyright:
- The copyright owner must agree to use of GPL.
- It's best if the submitter and copyright owner
- are the same person/entity. If not, the name of
- the person/entity authorizing use of GPL should be
- listed in case it's necessary to verify the will of
- the copyright owner.
-
-Interfaces:
- If your driver uses existing interfaces and behaves like
- other drivers in the same class it will be much more likely
- to be accepted than if it invents gratuitous new ones.
- If you need to implement a common API over Linux and NT
- drivers do it in userspace.
-
-Code:
- Please use the Linux style of code formatting as documented
- in :ref:`Documentation/process/coding-style.rst <codingStyle>`.
- If you have sections of code
- that need to be in other formats, for example because they
- are shared with a windows driver kit and you want to
- maintain them just once separate them out nicely and note
- this fact.
-
-Portability:
- Pointers are not always 32bits, not all computers are little
- endian, people do not all have floating point and you
- shouldn't use inline x86 assembler in your driver without
- careful thought. Pure x86 drivers generally are not popular.
- If you only have x86 hardware it is hard to test portability
- but it is easy to make sure the code can easily be made
- portable.
-
-Clarity:
- It helps if anyone can see how to fix the driver. It helps
- you because you get patches not bug reports. If you submit a
- driver that intentionally obfuscates how the hardware works
- it will go in the bitbucket.
-
-PM support:
- Since Linux is used on many portable and desktop systems, your
- driver is likely to be used on such a system and therefore it
- should support basic power management by implementing, if
- necessary, the .suspend and .resume methods used during the
- system-wide suspend and resume transitions. You should verify
- that your driver correctly handles the suspend and resume, but
- if you are unable to ensure that, please at least define the
- .suspend method returning the -ENOSYS ("Function not
- implemented") error. You should also try to make sure that your
- driver uses as little power as possible when it's not doing
- anything. For the driver testing instructions see
- Documentation/power/drivers-testing.rst and for a relatively
- complete overview of the power management issues related to
- drivers see :ref:`Documentation/driver-api/pm/devices.rst <driverapi_pm_devices>`.
-
-Control:
- In general if there is active maintenance of a driver by
- the author then patches will be redirected to them unless
- they are totally obvious and without need of checking.
- If you want to be the contact and update point for the
- driver it is a good idea to state this in the comments,
- and include an entry in MAINTAINERS for your driver.
-
-What Criteria Do Not Determine Acceptance
------------------------------------------
-
-Vendor:
- Being the hardware vendor and maintaining the driver is
- often a good thing. If there is a stable working driver from
- other people already in the tree don't expect 'we are the
- vendor' to get your driver chosen. Ideally work with the
- existing driver author to build a single perfect driver.
-
-Author:
- It doesn't matter if a large Linux company wrote the driver,
- or you did. Nobody has any special access to the kernel
- tree. Anyone who tells you otherwise isn't telling the
- whole story.
-
-
-Resources
----------
-
-Linux kernel master tree:
- ftp.\ *country_code*\ .kernel.org:/pub/linux/kernel/...
-
- where *country_code* == your country code, such as
- **us**, **uk**, **fr**, etc.
-
- https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git
-
-Linux kernel mailing list:
- linux-kernel@vger.kernel.org
- [mail majordomo@vger.kernel.org to subscribe]
-
-Linux Device Drivers, Third Edition (covers 2.6.10):
- https://lwn.net/Kernel/LDD3/ (free version)
-
-LWN.net:
- Weekly summary of kernel development activity - https://lwn.net/
-
- 2.6 API changes:
-
- https://lwn.net/Articles/2.6-kernel-api/
-
- Porting drivers from prior kernels to 2.6:
-
- https://lwn.net/Articles/driver-porting/
-
-KernelNewbies:
- Documentation and assistance for new kernel programmers
-
- https://kernelnewbies.org/
-
-Linux USB project:
- http://www.linux-usb.org/
-
-How to NOT write kernel driver by Arjan van de Ven:
- https://landley.net/kdocs/ols/2002/ols2002-pages-545-555.pdf
-
-Kernel Janitor:
- https://kernelnewbies.org/KernelJanitors
-
-GIT, Fast Version Control System:
- https://git-scm.com/
diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index a1cb6280fbcf..7dc94555417d 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -12,9 +12,8 @@ This document contains a large number of suggestions in a relatively terse
format. For detailed information on how the kernel development process
works, see Documentation/process/development-process.rst. Also, read
Documentation/process/submit-checklist.rst
-for a list of items to check before submitting code. If you are submitting
-a driver, also read Documentation/process/submitting-drivers.rst; for device
-tree binding patches, read
+for a list of items to check before submitting code.
+For device tree binding patches, read
Documentation/devicetree/bindings/submitting-patches.rst.
This documentation assumes that you're using ``git`` to prepare your patches.
@@ -716,8 +715,8 @@ references.
.. _backtraces:
-Backtraces in commit mesages
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Backtraces in commit messages
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Backtraces help document the call chain leading to a problem. However,
not all backtraces are helpful. For example, early boot call chains are
diff --git a/Documentation/rust/arch-support.rst b/Documentation/rust/arch-support.rst
new file mode 100644
index 000000000000..6982b63775da
--- /dev/null
+++ b/Documentation/rust/arch-support.rst
@@ -0,0 +1,19 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Arch Support
+============
+
+Currently, the Rust compiler (``rustc``) uses LLVM for code generation,
+which limits the supported architectures that can be targeted. In addition,
+support for building the kernel with LLVM/Clang varies (please see
+Documentation/kbuild/llvm.rst). This support is needed for ``bindgen``
+which uses ``libclang``.
+
+Below is a general summary of architectures that currently work. Level of
+support corresponds to ``S`` values in the ``MAINTAINERS`` file.
+
+============ ================ ==============================================
+Architecture Level of support Constraints
+============ ================ ==============================================
+``x86`` Maintained ``x86_64`` only.
+============ ================ ==============================================
diff --git a/Documentation/rust/coding-guidelines.rst b/Documentation/rust/coding-guidelines.rst
new file mode 100644
index 000000000000..aa8ed082613e
--- /dev/null
+++ b/Documentation/rust/coding-guidelines.rst
@@ -0,0 +1,216 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Coding Guidelines
+=================
+
+This document describes how to write Rust code in the kernel.
+
+
+Style & formatting
+------------------
+
+The code should be formatted using ``rustfmt``. In this way, a person
+contributing from time to time to the kernel does not need to learn and
+remember one more style guide. More importantly, reviewers and maintainers
+do not need to spend time pointing out style issues anymore, and thus
+less patch roundtrips may be needed to land a change.
+
+.. note:: Conventions on comments and documentation are not checked by
+ ``rustfmt``. Thus those are still needed to be taken care of.
+
+The default settings of ``rustfmt`` are used. This means the idiomatic Rust
+style is followed. For instance, 4 spaces are used for indentation rather
+than tabs.
+
+It is convenient to instruct editors/IDEs to format while typing,
+when saving or at commit time. However, if for some reason reformatting
+the entire kernel Rust sources is needed at some point, the following can be
+run::
+
+ make LLVM=1 rustfmt
+
+It is also possible to check if everything is formatted (printing a diff
+otherwise), for instance for a CI, with::
+
+ make LLVM=1 rustfmtcheck
+
+Like ``clang-format`` for the rest of the kernel, ``rustfmt`` works on
+individual files, and does not require a kernel configuration. Sometimes it may
+even work with broken code.
+
+
+Comments
+--------
+
+"Normal" comments (i.e. ``//``, rather than code documentation which starts
+with ``///`` or ``//!``) are written in Markdown the same way as documentation
+comments are, even though they will not be rendered. This improves consistency,
+simplifies the rules and allows to move content between the two kinds of
+comments more easily. For instance:
+
+.. code-block:: rust
+
+ // `object` is ready to be handled now.
+ f(object);
+
+Furthermore, just like documentation, comments are capitalized at the beginning
+of a sentence and ended with a period (even if it is a single sentence). This
+includes ``// SAFETY:``, ``// TODO:`` and other "tagged" comments, e.g.:
+
+.. code-block:: rust
+
+ // FIXME: The error should be handled properly.
+
+Comments should not be used for documentation purposes: comments are intended
+for implementation details, not users. This distinction is useful even if the
+reader of the source file is both an implementor and a user of an API. In fact,
+sometimes it is useful to use both comments and documentation at the same time.
+For instance, for a ``TODO`` list or to comment on the documentation itself.
+For the latter case, comments can be inserted in the middle; that is, closer to
+the line of documentation to be commented. For any other case, comments are
+written after the documentation, e.g.:
+
+.. code-block:: rust
+
+ /// Returns a new [`Foo`].
+ ///
+ /// # Examples
+ ///
+ // TODO: Find a better example.
+ /// ```
+ /// let foo = f(42);
+ /// ```
+ // FIXME: Use fallible approach.
+ pub fn f(x: i32) -> Foo {
+ // ...
+ }
+
+One special kind of comments are the ``// SAFETY:`` comments. These must appear
+before every ``unsafe`` block, and they explain why the code inside the block is
+correct/sound, i.e. why it cannot trigger undefined behavior in any case, e.g.:
+
+.. code-block:: rust
+
+ // SAFETY: `p` is valid by the safety requirements.
+ unsafe { *p = 0; }
+
+``// SAFETY:`` comments are not to be confused with the ``# Safety`` sections
+in code documentation. ``# Safety`` sections specify the contract that callers
+(for functions) or implementors (for traits) need to abide by. ``// SAFETY:``
+comments show why a call (for functions) or implementation (for traits) actually
+respects the preconditions stated in a ``# Safety`` section or the language
+reference.
+
+
+Code documentation
+------------------
+
+Rust kernel code is not documented like C kernel code (i.e. via kernel-doc).
+Instead, the usual system for documenting Rust code is used: the ``rustdoc``
+tool, which uses Markdown (a lightweight markup language).
+
+To learn Markdown, there are many guides available out there. For instance,
+the one at:
+
+ https://commonmark.org/help/
+
+This is how a well-documented Rust function may look like:
+
+.. code-block:: rust
+
+ /// Returns the contained [`Some`] value, consuming the `self` value,
+ /// without checking that the value is not [`None`].
+ ///
+ /// # Safety
+ ///
+ /// Calling this method on [`None`] is *[undefined behavior]*.
+ ///
+ /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// let x = Some("air");
+ /// assert_eq!(unsafe { x.unwrap_unchecked() }, "air");
+ /// ```
+ pub unsafe fn unwrap_unchecked(self) -> T {
+ match self {
+ Some(val) => val,
+
+ // SAFETY: The safety contract must be upheld by the caller.
+ None => unsafe { hint::unreachable_unchecked() },
+ }
+ }
+
+This example showcases a few ``rustdoc`` features and some conventions followed
+in the kernel:
+
+ - The first paragraph must be a single sentence briefly describing what
+ the documented item does. Further explanations must go in extra paragraphs.
+
+ - Unsafe functions must document their safety preconditions under
+ a ``# Safety`` section.
+
+ - While not shown here, if a function may panic, the conditions under which
+ that happens must be described under a ``# Panics`` section.
+
+ Please note that panicking should be very rare and used only with a good
+ reason. In almost all cases, a fallible approach should be used, typically
+ returning a ``Result``.
+
+ - If providing examples of usage would help readers, they must be written in
+ a section called ``# Examples``.
+
+ - Rust items (functions, types, constants...) must be linked appropriately
+ (``rustdoc`` will create a link automatically).
+
+ - Any ``unsafe`` block must be preceded by a ``// SAFETY:`` comment
+ describing why the code inside is sound.
+
+ While sometimes the reason might look trivial and therefore unneeded,
+ writing these comments is not just a good way of documenting what has been
+ taken into account, but most importantly, it provides a way to know that
+ there are no *extra* implicit constraints.
+
+To learn more about how to write documentation for Rust and extra features,
+please take a look at the ``rustdoc`` book at:
+
+ https://doc.rust-lang.org/rustdoc/how-to-write-documentation.html
+
+
+Naming
+------
+
+Rust kernel code follows the usual Rust naming conventions:
+
+ https://rust-lang.github.io/api-guidelines/naming.html
+
+When existing C concepts (e.g. macros, functions, objects...) are wrapped into
+a Rust abstraction, a name as close as reasonably possible to the C side should
+be used in order to avoid confusion and to improve readability when switching
+back and forth between the C and Rust sides. For instance, macros such as
+``pr_info`` from C are named the same in the Rust side.
+
+Having said that, casing should be adjusted to follow the Rust naming
+conventions, and namespacing introduced by modules and types should not be
+repeated in the item names. For instance, when wrapping constants like:
+
+.. code-block:: c
+
+ #define GPIO_LINE_DIRECTION_IN 0
+ #define GPIO_LINE_DIRECTION_OUT 1
+
+The equivalent in Rust may look like (ignoring documentation):
+
+.. code-block:: rust
+
+ pub mod gpio {
+ pub enum LineDirection {
+ In = bindings::GPIO_LINE_DIRECTION_IN as _,
+ Out = bindings::GPIO_LINE_DIRECTION_OUT as _,
+ }
+ }
+
+That is, the equivalent of ``GPIO_LINE_DIRECTION_IN`` would be referred to as
+``gpio::LineDirection::In``. In particular, it should not be named
+``gpio::gpio_line_direction::GPIO_LINE_DIRECTION_IN``.
diff --git a/Documentation/rust/general-information.rst b/Documentation/rust/general-information.rst
new file mode 100644
index 000000000000..49029ee82e55
--- /dev/null
+++ b/Documentation/rust/general-information.rst
@@ -0,0 +1,79 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+General Information
+===================
+
+This document contains useful information to know when working with
+the Rust support in the kernel.
+
+
+Code documentation
+------------------
+
+Rust kernel code is documented using ``rustdoc``, its built-in documentation
+generator.
+
+The generated HTML docs include integrated search, linked items (e.g. types,
+functions, constants), source code, etc. They may be read at (TODO: link when
+in mainline and generated alongside the rest of the documentation):
+
+ http://kernel.org/
+
+The docs can also be easily generated and read locally. This is quite fast
+(same order as compiling the code itself) and no special tools or environment
+are needed. This has the added advantage that they will be tailored to
+the particular kernel configuration used. To generate them, use the ``rustdoc``
+target with the same invocation used for compilation, e.g.::
+
+ make LLVM=1 rustdoc
+
+To read the docs locally in your web browser, run e.g.::
+
+ xdg-open rust/doc/kernel/index.html
+
+To learn about how to write the documentation, please see coding-guidelines.rst.
+
+
+Extra lints
+-----------
+
+While ``rustc`` is a very helpful compiler, some extra lints and analyses are
+available via ``clippy``, a Rust linter. To enable it, pass ``CLIPPY=1`` to
+the same invocation used for compilation, e.g.::
+
+ make LLVM=1 CLIPPY=1
+
+Please note that Clippy may change code generation, thus it should not be
+enabled while building a production kernel.
+
+
+Abstractions vs. bindings
+-------------------------
+
+Abstractions are Rust code wrapping kernel functionality from the C side.
+
+In order to use functions and types from the C side, bindings are created.
+Bindings are the declarations for Rust of those functions and types from
+the C side.
+
+For instance, one may write a ``Mutex`` abstraction in Rust which wraps
+a ``struct mutex`` from the C side and calls its functions through the bindings.
+
+Abstractions are not available for all the kernel internal APIs and concepts,
+but it is intended that coverage is expanded as time goes on. "Leaf" modules
+(e.g. drivers) should not use the C bindings directly. Instead, subsystems
+should provide as-safe-as-possible abstractions as needed.
+
+
+Conditional compilation
+-----------------------
+
+Rust code has access to conditional compilation based on the kernel
+configuration:
+
+.. code-block:: rust
+
+ #[cfg(CONFIG_X)] // Enabled (`y` or `m`)
+ #[cfg(CONFIG_X="y")] // Enabled as a built-in (`y`)
+ #[cfg(CONFIG_X="m")] // Enabled as a module (`m`)
+ #[cfg(not(CONFIG_X))] // Disabled
diff --git a/Documentation/rust/index.rst b/Documentation/rust/index.rst
new file mode 100644
index 000000000000..4ae8c66b94fa
--- /dev/null
+++ b/Documentation/rust/index.rst
@@ -0,0 +1,22 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Rust
+====
+
+Documentation related to Rust within the kernel. To start using Rust
+in the kernel, please read the quick-start.rst guide.
+
+.. toctree::
+ :maxdepth: 1
+
+ quick-start
+ general-information
+ coding-guidelines
+ arch-support
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/rust/quick-start.rst b/Documentation/rust/quick-start.rst
new file mode 100644
index 000000000000..13b7744b1e27
--- /dev/null
+++ b/Documentation/rust/quick-start.rst
@@ -0,0 +1,232 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Quick Start
+===========
+
+This document describes how to get started with kernel development in Rust.
+
+
+Requirements: Building
+----------------------
+
+This section explains how to fetch the tools needed for building.
+
+Some of these requirements might be available from Linux distributions
+under names like ``rustc``, ``rust-src``, ``rust-bindgen``, etc. However,
+at the time of writing, they are likely not to be recent enough unless
+the distribution tracks the latest releases.
+
+To easily check whether the requirements are met, the following target
+can be used::
+
+ make LLVM=1 rustavailable
+
+This triggers the same logic used by Kconfig to determine whether
+``RUST_IS_AVAILABLE`` should be enabled; but it also explains why not
+if that is the case.
+
+
+rustc
+*****
+
+A particular version of the Rust compiler is required. Newer versions may or
+may not work because, for the moment, the kernel depends on some unstable
+Rust features.
+
+If ``rustup`` is being used, enter the checked out source code directory
+and run::
+
+ rustup override set $(scripts/min-tool-version.sh rustc)
+
+Otherwise, fetch a standalone installer or install ``rustup`` from:
+
+ https://www.rust-lang.org
+
+
+Rust standard library source
+****************************
+
+The Rust standard library source is required because the build system will
+cross-compile ``core`` and ``alloc``.
+
+If ``rustup`` is being used, run::
+
+ rustup component add rust-src
+
+The components are installed per toolchain, thus upgrading the Rust compiler
+version later on requires re-adding the component.
+
+Otherwise, if a standalone installer is used, the Rust repository may be cloned
+into the installation folder of the toolchain::
+
+ git clone --recurse-submodules \
+ --branch $(scripts/min-tool-version.sh rustc) \
+ https://github.com/rust-lang/rust \
+ $(rustc --print sysroot)/lib/rustlib/src/rust
+
+In this case, upgrading the Rust compiler version later on requires manually
+updating this clone.
+
+
+libclang
+********
+
+``libclang`` (part of LLVM) is used by ``bindgen`` to understand the C code
+in the kernel, which means LLVM needs to be installed; like when the kernel
+is compiled with ``CC=clang`` or ``LLVM=1``.
+
+Linux distributions are likely to have a suitable one available, so it is
+best to check that first.
+
+There are also some binaries for several systems and architectures uploaded at:
+
+ https://releases.llvm.org/download.html
+
+Otherwise, building LLVM takes quite a while, but it is not a complex process:
+
+ https://llvm.org/docs/GettingStarted.html#getting-the-source-code-and-building-llvm
+
+Please see Documentation/kbuild/llvm.rst for more information and further ways
+to fetch pre-built releases and distribution packages.
+
+
+bindgen
+*******
+
+The bindings to the C side of the kernel are generated at build time using
+the ``bindgen`` tool. A particular version is required.
+
+Install it via (note that this will download and build the tool from source)::
+
+ cargo install --locked --version $(scripts/min-tool-version.sh bindgen) bindgen
+
+
+Requirements: Developing
+------------------------
+
+This section explains how to fetch the tools needed for developing. That is,
+they are not needed when just building the kernel.
+
+
+rustfmt
+*******
+
+The ``rustfmt`` tool is used to automatically format all the Rust kernel code,
+including the generated C bindings (for details, please see
+coding-guidelines.rst).
+
+If ``rustup`` is being used, its ``default`` profile already installs the tool,
+thus nothing needs to be done. If another profile is being used, the component
+can be installed manually::
+
+ rustup component add rustfmt
+
+The standalone installers also come with ``rustfmt``.
+
+
+clippy
+******
+
+``clippy`` is a Rust linter. Running it provides extra warnings for Rust code.
+It can be run by passing ``CLIPPY=1`` to ``make`` (for details, please see
+general-information.rst).
+
+If ``rustup`` is being used, its ``default`` profile already installs the tool,
+thus nothing needs to be done. If another profile is being used, the component
+can be installed manually::
+
+ rustup component add clippy
+
+The standalone installers also come with ``clippy``.
+
+
+cargo
+*****
+
+``cargo`` is the Rust native build system. It is currently required to run
+the tests since it is used to build a custom standard library that contains
+the facilities provided by the custom ``alloc`` in the kernel. The tests can
+be run using the ``rusttest`` Make target.
+
+If ``rustup`` is being used, all the profiles already install the tool,
+thus nothing needs to be done.
+
+The standalone installers also come with ``cargo``.
+
+
+rustdoc
+*******
+
+``rustdoc`` is the documentation tool for Rust. It generates pretty HTML
+documentation for Rust code (for details, please see
+general-information.rst).
+
+``rustdoc`` is also used to test the examples provided in documented Rust code
+(called doctests or documentation tests). The ``rusttest`` Make target uses
+this feature.
+
+If ``rustup`` is being used, all the profiles already install the tool,
+thus nothing needs to be done.
+
+The standalone installers also come with ``rustdoc``.
+
+
+rust-analyzer
+*************
+
+The `rust-analyzer <https://rust-analyzer.github.io/>`_ language server can
+be used with many editors to enable syntax highlighting, completion, go to
+definition, and other features.
+
+``rust-analyzer`` needs a configuration file, ``rust-project.json``, which
+can be generated by the ``rust-analyzer`` Make target.
+
+
+Configuration
+-------------
+
+``Rust support`` (``CONFIG_RUST``) needs to be enabled in the ``General setup``
+menu. The option is only shown if a suitable Rust toolchain is found (see
+above), as long as the other requirements are met. In turn, this will make
+visible the rest of options that depend on Rust.
+
+Afterwards, go to::
+
+ Kernel hacking
+ -> Sample kernel code
+ -> Rust samples
+
+And enable some sample modules either as built-in or as loadable.
+
+
+Building
+--------
+
+Building a kernel with a complete LLVM toolchain is the best supported setup
+at the moment. That is::
+
+ make LLVM=1
+
+For architectures that do not support a full LLVM toolchain, use::
+
+ make CC=clang
+
+Using GCC also works for some configurations, but it is very experimental at
+the moment.
+
+
+Hacking
+-------
+
+To dive deeper, take a look at the source code of the samples
+at ``samples/rust/``, the Rust support code under ``rust/`` and
+the ``Rust hacking`` menu under ``Kernel hacking``.
+
+If GDB/Binutils is used and Rust symbols are not getting demangled, the reason
+is the toolchain does not support Rust's new v0 mangling scheme yet.
+There are a few ways out:
+
+ - Install a newer release (GDB >= 10.2, Binutils >= 2.36).
+
+ - Some versions of GDB (e.g. vanilla GDB 10.1) are able to use
+ the pre-demangled names embedded in the debug info (``CONFIG_DEBUG_INFO``).
diff --git a/Documentation/s390/index.rst b/Documentation/s390/index.rst
index b10ca9192557..73c79bf586fd 100644
--- a/Documentation/s390/index.rst
+++ b/Documentation/s390/index.rst
@@ -12,6 +12,7 @@ s390 Architecture
qeth
s390dbf
vfio-ap
+ vfio-ap-locking
vfio-ccw
zfcpdump
common_io
diff --git a/Documentation/s390/vfio-ap-locking.rst b/Documentation/s390/vfio-ap-locking.rst
new file mode 100644
index 000000000000..0dfcdb562e21
--- /dev/null
+++ b/Documentation/s390/vfio-ap-locking.rst
@@ -0,0 +1,115 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================
+VFIO AP Locks Overview
+======================
+This document describes the locks that are pertinent to the secure operation
+of the vfio_ap device driver. Throughout this document, the following variables
+will be used to denote instances of the structures herein described:
+
+.. code-block:: c
+
+ struct ap_matrix_dev *matrix_dev;
+ struct ap_matrix_mdev *matrix_mdev;
+ struct kvm *kvm;
+
+The Matrix Devices Lock (drivers/s390/crypto/vfio_ap_private.h)
+---------------------------------------------------------------
+
+.. code-block:: c
+
+ struct ap_matrix_dev {
+ ...
+ struct list_head mdev_list;
+ struct mutex mdevs_lock;
+ ...
+ }
+
+The Matrix Devices Lock (matrix_dev->mdevs_lock) is implemented as a global
+mutex contained within the single object of struct ap_matrix_dev. This lock
+controls access to all fields contained within each matrix_mdev
+(matrix_dev->mdev_list). This lock must be held while reading from, writing to
+or using the data from a field contained within a matrix_mdev instance
+representing one of the vfio_ap device driver's mediated devices.
+
+The KVM Lock (include/linux/kvm_host.h)
+---------------------------------------
+
+.. code-block:: c
+
+ struct kvm {
+ ...
+ struct mutex lock;
+ ...
+ }
+
+The KVM Lock (kvm->lock) controls access to the state data for a KVM guest. This
+lock must be held by the vfio_ap device driver while one or more AP adapters,
+domains or control domains are being plugged into or unplugged from the guest.
+
+The KVM pointer is stored in the in the matrix_mdev instance
+(matrix_mdev->kvm = kvm) containing the state of the mediated device that has
+been attached to the KVM guest.
+
+The Guests Lock (drivers/s390/crypto/vfio_ap_private.h)
+-----------------------------------------------------------
+
+.. code-block:: c
+
+ struct ap_matrix_dev {
+ ...
+ struct list_head mdev_list;
+ struct mutex guests_lock;
+ ...
+ }
+
+The Guests Lock (matrix_dev->guests_lock) controls access to the
+matrix_mdev instances (matrix_dev->mdev_list) that represent mediated devices
+that hold the state for the mediated devices that have been attached to a
+KVM guest. This lock must be held:
+
+1. To control access to the KVM pointer (matrix_mdev->kvm) while the vfio_ap
+ device driver is using it to plug/unplug AP devices passed through to the KVM
+ guest.
+
+2. To add matrix_mdev instances to or remove them from matrix_dev->mdev_list.
+ This is necessary to ensure the proper locking order when the list is perused
+ to find an ap_matrix_mdev instance for the purpose of plugging/unplugging
+ AP devices passed through to a KVM guest.
+
+ For example, when a queue device is removed from the vfio_ap device driver,
+ if the adapter is passed through to a KVM guest, it will have to be
+ unplugged. In order to figure out whether the adapter is passed through,
+ the matrix_mdev object to which the queue is assigned will have to be
+ found. The KVM pointer (matrix_mdev->kvm) can then be used to determine if
+ the mediated device is passed through (matrix_mdev->kvm != NULL) and if so,
+ to unplug the adapter.
+
+It is not necessary to take the Guests Lock to access the KVM pointer if the
+pointer is not used to plug/unplug devices passed through to the KVM guest;
+however, in this case, the Matrix Devices Lock (matrix_dev->mdevs_lock) must be
+held in order to access the KVM pointer since it is set and cleared under the
+protection of the Matrix Devices Lock. A case in point is the function that
+handles interception of the PQAP(AQIC) instruction sub-function. This handler
+needs to access the KVM pointer only for the purposes of setting or clearing IRQ
+resources, so only the matrix_dev->mdevs_lock needs to be held.
+
+The PQAP Hook Lock (arch/s390/include/asm/kvm_host.h)
+-----------------------------------------------------
+
+.. code-block:: c
+
+ typedef int (*crypto_hook)(struct kvm_vcpu *vcpu);
+
+ struct kvm_s390_crypto {
+ ...
+ struct rw_semaphore pqap_hook_rwsem;
+ crypto_hook *pqap_hook;
+ ...
+ };
+
+The PQAP Hook Lock is a r/w semaphore that controls access to the function
+pointer of the handler ``(*kvm->arch.crypto.pqap_hook)`` to invoke when the
+PQAP(AQIC) instruction sub-function is intercepted by the host. The lock must be
+held in write mode when pqap_hook value is set, and in read mode when the
+pqap_hook function is called.
diff --git a/Documentation/s390/vfio-ap.rst b/Documentation/s390/vfio-ap.rst
index f57ae621f33e..61a0a3c6c7b4 100644
--- a/Documentation/s390/vfio-ap.rst
+++ b/Documentation/s390/vfio-ap.rst
@@ -123,27 +123,24 @@ Let's now take a look at how AP instructions executed on a guest are interpreted
by the hardware.
A satellite control block called the Crypto Control Block (CRYCB) is attached to
-our main hardware virtualization control block. The CRYCB contains three fields
-to identify the adapters, usage domains and control domains assigned to the KVM
-guest:
+our main hardware virtualization control block. The CRYCB contains an AP Control
+Block (APCB) that has three fields to identify the adapters, usage domains and
+control domains assigned to the KVM guest:
* The AP Mask (APM) field is a bit mask that identifies the AP adapters assigned
- to the KVM guest. Each bit in the mask, from left to right (i.e. from most
- significant to least significant bit in big endian order), corresponds to
+ to the KVM guest. Each bit in the mask, from left to right, corresponds to
an APID from 0-255. If a bit is set, the corresponding adapter is valid for
use by the KVM guest.
* The AP Queue Mask (AQM) field is a bit mask identifying the AP usage domains
- assigned to the KVM guest. Each bit in the mask, from left to right (i.e. from
- most significant to least significant bit in big endian order), corresponds to
- an AP queue index (APQI) from 0-255. If a bit is set, the corresponding queue
- is valid for use by the KVM guest.
+ assigned to the KVM guest. Each bit in the mask, from left to right,
+ corresponds to an AP queue index (APQI) from 0-255. If a bit is set, the
+ corresponding queue is valid for use by the KVM guest.
* The AP Domain Mask field is a bit mask that identifies the AP control domains
assigned to the KVM guest. The ADM bit mask controls which domains can be
changed by an AP command-request message sent to a usage domain from the
- guest. Each bit in the mask, from left to right (i.e. from most significant to
- least significant bit in big endian order), corresponds to a domain from
+ guest. Each bit in the mask, from left to right, corresponds to a domain from
0-255. If a bit is set, the corresponding domain can be modified by an AP
command-request message sent to a usage domain.
@@ -151,10 +148,10 @@ If you recall from the description of an AP Queue, AP instructions include
an APQN to identify the AP queue to which an AP command-request message is to be
sent (NQAP and PQAP instructions), or from which a command-reply message is to
be received (DQAP instruction). The validity of an APQN is defined by the matrix
-calculated from the APM and AQM; it is the cross product of all assigned adapter
-numbers (APM) with all assigned queue indexes (AQM). For example, if adapters 1
-and 2 and usage domains 5 and 6 are assigned to a guest, the APQNs (1,5), (1,6),
-(2,5) and (2,6) will be valid for the guest.
+calculated from the APM and AQM; it is the Cartesian product of all assigned
+adapter numbers (APM) with all assigned queue indexes (AQM). For example, if
+adapters 1 and 2 and usage domains 5 and 6 are assigned to a guest, the APQNs
+(1,5), (1,6), (2,5) and (2,6) will be valid for the guest.
The APQNs can provide secure key functionality - i.e., a private key is stored
on the adapter card for each of its domains - so each APQN must be assigned to
@@ -192,7 +189,7 @@ The design introduces three new objects:
1. AP matrix device
2. VFIO AP device driver (vfio_ap.ko)
-3. VFIO AP mediated matrix pass-through device
+3. VFIO AP mediated pass-through device
The VFIO AP device driver
-------------------------
@@ -200,12 +197,13 @@ The VFIO AP (vfio_ap) device driver serves the following purposes:
1. Provides the interfaces to secure APQNs for exclusive use of KVM guests.
-2. Sets up the VFIO mediated device interfaces to manage a mediated matrix
+2. Sets up the VFIO mediated device interfaces to manage a vfio_ap mediated
device and creates the sysfs interfaces for assigning adapters, usage
domains, and control domains comprising the matrix for a KVM guest.
-3. Configures the APM, AQM and ADM in the CRYCB referenced by a KVM guest's
- SIE state description to grant the guest access to a matrix of AP devices
+3. Configures the APM, AQM and ADM in the APCB contained in the CRYCB referenced
+ by a KVM guest's SIE state description to grant the guest access to a matrix
+ of AP devices
Reserve APQNs for exclusive use of KVM guests
---------------------------------------------
@@ -235,10 +233,10 @@ reserved::
| | 8 probe | |
+--------^---------+ +--^--^------------+
6 edit | | |
- apmask | +-----------------------------+ | 9 mdev create
+ apmask | +-----------------------------+ | 11 mdev create
aqmask | | 1 modprobe |
+--------+-----+---+ +----------------+-+ +----------------+
- | | | |8 create | mediated |
+ | | | |10 create| mediated |
| admin | | VFIO device core |---------> matrix |
| + | | | device |
+------+-+---------+ +--------^---------+ +--------^-------+
@@ -246,14 +244,14 @@ reserved::
| | 9 create vfio_ap-passthrough | |
| +------------------------------+ |
+-------------------------------------------------------------+
- 10 assign adapter/domain/control domain
+ 12 assign adapter/domain/control domain
The process for reserving an AP queue for use by a KVM guest is:
1. The administrator loads the vfio_ap device driver
2. The vfio-ap driver during its initialization will register a single 'matrix'
device with the device core. This will serve as the parent device for
- all mediated matrix devices used to configure an AP matrix for a guest.
+ all vfio_ap mediated devices used to configure an AP matrix for a guest.
3. The /sys/devices/vfio_ap/matrix device is created by the device core
4. The vfio_ap device driver will register with the AP bus for AP queue devices
of type 10 and higher (CEX4 and newer). The driver will provide the vfio_ap
@@ -269,24 +267,24 @@ The process for reserving an AP queue for use by a KVM guest is:
default zcrypt cex4queue driver.
8. The AP bus probes the vfio_ap device driver to bind the queues reserved for
it.
-9. The administrator creates a passthrough type mediated matrix device to be
+9. The administrator creates a passthrough type vfio_ap mediated device to be
used by a guest
10. The administrator assigns the adapters, usage domains and control domains
to be exclusively used by a guest.
Set up the VFIO mediated device interfaces
------------------------------------------
-The VFIO AP device driver utilizes the common interface of the VFIO mediated
+The VFIO AP device driver utilizes the common interfaces of the VFIO mediated
device core driver to:
-* Register an AP mediated bus driver to add a mediated matrix device to and
+* Register an AP mediated bus driver to add a vfio_ap mediated device to and
remove it from a VFIO group.
-* Create and destroy a mediated matrix device
-* Add a mediated matrix device to and remove it from the AP mediated bus driver
-* Add a mediated matrix device to and remove it from an IOMMU group
+* Create and destroy a vfio_ap mediated device
+* Add a vfio_ap mediated device to and remove it from the AP mediated bus driver
+* Add a vfio_ap mediated device to and remove it from an IOMMU group
The following high-level block diagram shows the main components and interfaces
-of the VFIO AP mediated matrix device driver::
+of the VFIO AP mediated device driver::
+-------------+
| |
@@ -343,7 +341,7 @@ matrix device.
* device_api:
the mediated device type's API
* available_instances:
- the number of mediated matrix passthrough devices
+ the number of vfio_ap mediated passthrough devices
that can be created
* device_api:
specifies the VFIO API
@@ -351,29 +349,37 @@ matrix device.
This attribute group identifies the user-defined sysfs attributes of the
mediated device. When a device is registered with the VFIO mediated device
framework, the sysfs attribute files identified in the 'mdev_attr_groups'
- structure will be created in the mediated matrix device's directory. The
- sysfs attributes for a mediated matrix device are:
+ structure will be created in the vfio_ap mediated device's directory. The
+ sysfs attributes for a vfio_ap mediated device are:
assign_adapter / unassign_adapter:
Write-only attributes for assigning/unassigning an AP adapter to/from the
- mediated matrix device. To assign/unassign an adapter, the APID of the
- adapter is echoed to the respective attribute file.
+ vfio_ap mediated device. To assign/unassign an adapter, the APID of the
+ adapter is echoed into the respective attribute file.
assign_domain / unassign_domain:
Write-only attributes for assigning/unassigning an AP usage domain to/from
- the mediated matrix device. To assign/unassign a domain, the domain
- number of the usage domain is echoed to the respective attribute
+ the vfio_ap mediated device. To assign/unassign a domain, the domain
+ number of the usage domain is echoed into the respective attribute
file.
matrix:
- A read-only file for displaying the APQNs derived from the cross product
- of the adapter and domain numbers assigned to the mediated matrix device.
+ A read-only file for displaying the APQNs derived from the Cartesian
+ product of the adapter and domain numbers assigned to the vfio_ap mediated
+ device.
+ guest_matrix:
+ A read-only file for displaying the APQNs derived from the Cartesian
+ product of the adapter and domain numbers assigned to the APM and AQM
+ fields respectively of the KVM guest's CRYCB. This may differ from the
+ the APQNs assigned to the vfio_ap mediated device if any APQN does not
+ reference a queue device bound to the vfio_ap device driver (i.e., the
+ queue is not in the host's AP configuration).
assign_control_domain / unassign_control_domain:
Write-only attributes for assigning/unassigning an AP control domain
- to/from the mediated matrix device. To assign/unassign a control domain,
- the ID of the domain to be assigned/unassigned is echoed to the respective
- attribute file.
+ to/from the vfio_ap mediated device. To assign/unassign a control domain,
+ the ID of the domain to be assigned/unassigned is echoed into the
+ respective attribute file.
control_domains:
A read-only file for displaying the control domain numbers assigned to the
- mediated matrix device.
+ vfio_ap mediated device.
* functions:
@@ -383,45 +389,75 @@ matrix device.
* Store the reference to the KVM structure for the guest using the mdev
* Store the AP matrix configuration for the adapters, domains, and control
domains assigned via the corresponding sysfs attributes files
+ * Store the AP matrix configuration for the adapters, domains and control
+ domains available to a guest. A guest may not be provided access to APQNs
+ referencing queue devices that do not exist, or are not bound to the
+ vfio_ap device driver.
remove:
- deallocates the mediated matrix device's ap_matrix_mdev structure. This will
- be allowed only if a running guest is not using the mdev.
+ deallocates the vfio_ap mediated device's ap_matrix_mdev structure.
+ This will be allowed only if a running guest is not using the mdev.
* callback interfaces
- open:
+ open_device:
The vfio_ap driver uses this callback to register a
- VFIO_GROUP_NOTIFY_SET_KVM notifier callback function for the mdev matrix
- device. The open is invoked when QEMU connects the VFIO iommu group
- for the mdev matrix device to the MDEV bus. Access to the KVM structure used
- to configure the KVM guest is provided via this callback. The KVM structure,
- is used to configure the guest's access to the AP matrix defined via the
- mediated matrix device's sysfs attribute files.
- release:
+ VFIO_GROUP_NOTIFY_SET_KVM notifier callback function for the matrix mdev
+ devices. The open_device callback is invoked by userspace to connect the
+ VFIO iommu group for the matrix mdev device to the MDEV bus. Access to the
+ KVM structure used to configure the KVM guest is provided via this callback.
+ The KVM structure, is used to configure the guest's access to the AP matrix
+ defined via the vfio_ap mediated device's sysfs attribute files.
+
+ close_device:
unregisters the VFIO_GROUP_NOTIFY_SET_KVM notifier callback function for the
- mdev matrix device and deconfigures the guest's AP matrix.
+ matrix mdev device and deconfigures the guest's AP matrix.
-Configure the APM, AQM and ADM in the CRYCB
--------------------------------------------
-Configuring the AP matrix for a KVM guest will be performed when the
+ ioctl:
+ this callback handles the VFIO_DEVICE_GET_INFO and VFIO_DEVICE_RESET ioctls
+ defined by the vfio framework.
+
+Configure the guest's AP resources
+----------------------------------
+Configuring the AP resources for a KVM guest will be performed when the
VFIO_GROUP_NOTIFY_SET_KVM notifier callback is invoked. The notifier
-function is called when QEMU connects to KVM. The guest's AP matrix is
-configured via it's CRYCB by:
+function is called when userspace connects to KVM. The guest's AP resources are
+configured via it's APCB by:
* Setting the bits in the APM corresponding to the APIDs assigned to the
- mediated matrix device via its 'assign_adapter' interface.
+ vfio_ap mediated device via its 'assign_adapter' interface.
* Setting the bits in the AQM corresponding to the domains assigned to the
- mediated matrix device via its 'assign_domain' interface.
+ vfio_ap mediated device via its 'assign_domain' interface.
* Setting the bits in the ADM corresponding to the domain dIDs assigned to the
- mediated matrix device via its 'assign_control_domains' interface.
+ vfio_ap mediated device via its 'assign_control_domains' interface.
+
+The linux device model precludes passing a device through to a KVM guest that
+is not bound to the device driver facilitating its pass-through. Consequently,
+an APQN that does not reference a queue device bound to the vfio_ap device
+driver will not be assigned to a KVM guest's matrix. The AP architecture,
+however, does not provide a means to filter individual APQNs from the guest's
+matrix, so the adapters, domains and control domains assigned to vfio_ap
+mediated device via its sysfs 'assign_adapter', 'assign_domain' and
+'assign_control_domain' interfaces will be filtered before providing the AP
+configuration to a guest:
+
+* The APIDs of the adapters, the APQIs of the domains and the domain numbers of
+ the control domains assigned to the matrix mdev that are not also assigned to
+ the host's AP configuration will be filtered.
+
+* Each APQN derived from the Cartesian product of the APIDs and APQIs assigned
+ to the vfio_ap mdev is examined and if any one of them does not reference a
+ queue device bound to the vfio_ap device driver, the adapter will not be
+ plugged into the guest (i.e., the bit corresponding to its APID will not be
+ set in the APM of the guest's APCB).
The CPU model features for AP
-----------------------------
-The AP stack relies on the presence of the AP instructions as well as two
-facilities: The AP Facilities Test (APFT) facility; and the AP Query
-Configuration Information (QCI) facility. These features/facilities are made
-available to a KVM guest via the following CPU model features:
+The AP stack relies on the presence of the AP instructions as well as three
+facilities: The AP Facilities Test (APFT) facility; the AP Query
+Configuration Information (QCI) facility; and the AP Queue Interruption Control
+facility. These features/facilities are made available to a KVM guest via the
+following CPU model features:
1. ap: Indicates whether the AP instructions are installed on the guest. This
feature will be enabled by KVM only if the AP instructions are installed
@@ -435,24 +471,28 @@ available to a KVM guest via the following CPU model features:
can be made available to the guest only if it is available on the host (i.e.,
facility bit 12 is set).
+4. apqi: Indicates AP Queue Interruption Control faclity is available on the
+ guest. This facility can be made available to the guest only if it is
+ available on the host (i.e., facility bit 65 is set).
+
Note: If the user chooses to specify a CPU model different than the 'host'
model to QEMU, the CPU model features and facilities need to be turned on
explicitly; for example::
- /usr/bin/qemu-system-s390x ... -cpu z13,ap=on,apqci=on,apft=on
+ /usr/bin/qemu-system-s390x ... -cpu z13,ap=on,apqci=on,apft=on,apqi=on
A guest can be precluded from using AP features/facilities by turning them off
explicitly; for example::
- /usr/bin/qemu-system-s390x ... -cpu host,ap=off,apqci=off,apft=off
+ /usr/bin/qemu-system-s390x ... -cpu host,ap=off,apqci=off,apft=off,apqi=off
Note: If the APFT facility is turned off (apft=off) for the guest, the guest
-will not see any AP devices. The zcrypt device drivers that register for type 10
-and newer AP devices - i.e., the cex4card and cex4queue device drivers - need
-the APFT facility to ascertain the facilities installed on a given AP device. If
-the APFT facility is not installed on the guest, then the probe of device
-drivers will fail since only type 10 and newer devices can be configured for
-guest use.
+will not see any AP devices. The zcrypt device drivers on the guest that
+register for type 10 and newer AP devices - i.e., the cex4card and cex4queue
+device drivers - need the APFT facility to ascertain the facilities installed on
+a given AP device. If the APFT facility is not installed on the guest, then no
+adapter or domain devices will get created by the AP bus running on the
+guest because only type 10 and newer devices can be configured for guest use.
Example
=======
@@ -471,7 +511,7 @@ CARD.DOMAIN TYPE MODE
05.00ab CEX5C CCA-Coproc
06 CEX5A Accelerator
06.0004 CEX5A Accelerator
-06.00ab CEX5C CCA-Coproc
+06.00ab CEX5A Accelerator
=========== ===== ============
Guest2
@@ -479,9 +519,9 @@ Guest2
=========== ===== ============
CARD.DOMAIN TYPE MODE
=========== ===== ============
-05 CEX5A Accelerator
-05.0047 CEX5A Accelerator
-05.00ff CEX5A Accelerator
+05 CEX5C CCA-Coproc
+05.0047 CEX5C CCA-Coproc
+05.00ff CEX5C CCA-Coproc
=========== ===== ============
Guest3
@@ -529,40 +569,56 @@ These are the steps:
2. Secure the AP queues to be used by the three guests so that the host can not
access them. To secure them, there are two sysfs files that specify
- bitmasks marking a subset of the APQN range as 'usable by the default AP
- queue device drivers' or 'not usable by the default device drivers' and thus
- available for use by the vfio_ap device driver'. The location of the sysfs
- files containing the masks are::
+ bitmasks marking a subset of the APQN range as usable only by the default AP
+ queue device drivers. All remaining APQNs are available for use by
+ any other device driver. The vfio_ap device driver is currently the only
+ non-default device driver. The location of the sysfs files containing the
+ masks are::
/sys/bus/ap/apmask
/sys/bus/ap/aqmask
The 'apmask' is a 256-bit mask that identifies a set of AP adapter IDs
- (APID). Each bit in the mask, from left to right (i.e., from most significant
- to least significant bit in big endian order), corresponds to an APID from
- 0-255. If a bit is set, the APID is marked as usable only by the default AP
- queue device drivers; otherwise, the APID is usable by the vfio_ap
- device driver.
+ (APID). Each bit in the mask, from left to right, corresponds to an APID from
+ 0-255. If a bit is set, the APID belongs to the subset of APQNs marked as
+ available only to the default AP queue device drivers.
The 'aqmask' is a 256-bit mask that identifies a set of AP queue indexes
- (APQI). Each bit in the mask, from left to right (i.e., from most significant
- to least significant bit in big endian order), corresponds to an APQI from
- 0-255. If a bit is set, the APQI is marked as usable only by the default AP
- queue device drivers; otherwise, the APQI is usable by the vfio_ap device
- driver.
+ (APQI). Each bit in the mask, from left to right, corresponds to an APQI from
+ 0-255. If a bit is set, the APQI belongs to the subset of APQNs marked as
+ available only to the default AP queue device drivers.
+
+ The Cartesian product of the APIDs corresponding to the bits set in the
+ apmask and the APQIs corresponding to the bits set in the aqmask comprise
+ the subset of APQNs that can be used only by the host default device drivers.
+ All other APQNs are available to the non-default device drivers such as the
+ vfio_ap driver.
+
+ Take, for example, the following masks::
+
+ apmask:
+ 0x7d00000000000000000000000000000000000000000000000000000000000000
- Take, for example, the following mask::
+ aqmask:
+ 0x8000000000000000000000000000000000000000000000000000000000000000
- 0x7dffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
+ The masks indicate:
- It indicates:
+ * Adapters 1, 2, 3, 4, 5, and 7 are available for use by the host default
+ device drivers.
- 1, 2, 3, 4, 5, and 7-255 belong to the default drivers' pool, and 0 and 6
- belong to the vfio_ap device driver's pool.
+ * Domain 0 is available for use by the host default device drivers
+
+ * The subset of APQNs available for use only by the default host device
+ drivers are:
+
+ (1,0), (2,0), (3,0), (4.0), (5,0) and (7,0)
+
+ * All other APQNs are available for use by the non-default device drivers.
The APQN of each AP queue device assigned to the linux host is checked by the
- AP bus against the set of APQNs derived from the cross product of APIDs
- and APQIs marked as usable only by the default AP queue device drivers. If a
+ AP bus against the set of APQNs derived from the Cartesian product of APIDs
+ and APQIs marked as available to the default AP queue device drivers. If a
match is detected, only the default AP queue device drivers will be probed;
otherwise, the vfio_ap device driver will be probed.
@@ -579,8 +635,7 @@ These are the steps:
0x4100000000000000000000000000000000000000000000000000000000000000
- Keep in mind that the mask reads from left to right (i.e., most
- significant to least significant bit in big endian order), so the mask
+ Keep in mind that the mask reads from left to right, so the mask
above identifies device numbers 1 and 7 (01000001).
If the string is longer than the mask, the operation is terminated with
@@ -626,11 +681,22 @@ These are the steps:
default drivers pool: adapter 0-15, domain 1
alternate drivers pool: adapter 16-255, domains 0, 2-255
+ **Note:**
+ Changing a mask such that one or more APQNs will be taken from a vfio_ap
+ mediated device (see below) will fail with an error (EBUSY). A message
+ is logged to the kernel ring buffer which can be viewed with the 'dmesg'
+ command. The output identifies each APQN flagged as 'in use' and identifies
+ the vfio_ap mediated device to which it is assigned; for example:
+
+ Userspace may not re-assign queue 05.0054 already assigned to 62177883-f1bb-47f0-914d-32a22e3a8804
+ Userspace may not re-assign queue 04.0054 already assigned to cef03c3c-903d-4ecc-9a83-40694cb8aee4
+
Securing the APQNs for our example
----------------------------------
To secure the AP queues 05.0004, 05.0047, 05.00ab, 05.00ff, 06.0004, 06.0047,
06.00ab, and 06.00ff for use by the vfio_ap device driver, the corresponding
- APQNs can either be removed from the default masks::
+ APQNs can be removed from the default masks using either of the following
+ commands::
echo -5,-6 > /sys/bus/ap/apmask
@@ -683,7 +749,7 @@ Securing the APQNs for our example
/sys/devices/vfio_ap/matrix/
--- [mdev_supported_types]
- ------ [vfio_ap-passthrough] (passthrough mediated matrix device type)
+ ------ [vfio_ap-passthrough] (passthrough vfio_ap mediated device type)
--------- create
--------- [devices]
@@ -734,6 +800,9 @@ Securing the APQNs for our example
----------------unassign_control_domain
----------------unassign_domain
+ Note *****: The vfio_ap mdevs do not persist across reboots unless the
+ mdevctl tool is used to create and persist them.
+
4. The administrator now needs to configure the matrixes for the mediated
devices $uuid1 (for Guest1), $uuid2 (for Guest2) and $uuid3 (for Guest3).
@@ -755,6 +824,10 @@ Securing the APQNs for our example
cat matrix
+ To display the matrix that is or will be assigned to Guest1::
+
+ cat guest_matrix
+
This is how the matrix is configured for Guest2::
echo 5 > assign_adapter
@@ -774,17 +847,24 @@ Securing the APQNs for our example
higher than the maximum is specified, the operation will terminate with
an error (ENODEV).
- * All APQNs that can be derived from the adapter ID and the IDs of
- the previously assigned domains must be bound to the vfio_ap device
- driver. If no domains have yet been assigned, then there must be at least
- one APQN with the specified APID bound to the vfio_ap driver. If no such
- APQNs are bound to the driver, the operation will terminate with an
- error (EADDRNOTAVAIL).
+ Note: The maximum adapter number can be obtained via the sysfs
+ /sys/bus/ap/ap_max_adapter_id attribute file.
+
+ * Each APQN derived from the Cartesian product of the APID of the adapter
+ being assigned and the APQIs of the domains previously assigned:
+
+ - Must only be available to the vfio_ap device driver as specified in the
+ sysfs /sys/bus/ap/apmask and /sys/bus/ap/aqmask attribute files. If even
+ one APQN is reserved for use by the host device driver, the operation
+ will terminate with an error (EADDRNOTAVAIL).
+
+ - Must NOT be assigned to another vfio_ap mediated device. If even one APQN
+ is assigned to another vfio_ap mediated device, the operation will
+ terminate with an error (EBUSY).
- No APQN that can be derived from the adapter ID and the IDs of the
- previously assigned domains can be assigned to another mediated matrix
- device. If an APQN is assigned to another mediated matrix device, the
- operation will terminate with an error (EADDRINUSE).
+ - Must NOT be assigned while the sysfs /sys/bus/ap/apmask and
+ sys/bus/ap/aqmask attribute files are being edited or the operation may
+ terminate with an error (EBUSY).
In order to successfully assign a domain:
@@ -793,41 +873,50 @@ Securing the APQNs for our example
higher than the maximum is specified, the operation will terminate with
an error (ENODEV).
- * All APQNs that can be derived from the domain ID and the IDs of
- the previously assigned adapters must be bound to the vfio_ap device
- driver. If no domains have yet been assigned, then there must be at least
- one APQN with the specified APQI bound to the vfio_ap driver. If no such
- APQNs are bound to the driver, the operation will terminate with an
- error (EADDRNOTAVAIL).
+ Note: The maximum domain number can be obtained via the sysfs
+ /sys/bus/ap/ap_max_domain_id attribute file.
+
+ * Each APQN derived from the Cartesian product of the APQI of the domain
+ being assigned and the APIDs of the adapters previously assigned:
+
+ - Must only be available to the vfio_ap device driver as specified in the
+ sysfs /sys/bus/ap/apmask and /sys/bus/ap/aqmask attribute files. If even
+ one APQN is reserved for use by the host device driver, the operation
+ will terminate with an error (EADDRNOTAVAIL).
+
+ - Must NOT be assigned to another vfio_ap mediated device. If even one APQN
+ is assigned to another vfio_ap mediated device, the operation will
+ terminate with an error (EBUSY).
- No APQN that can be derived from the domain ID and the IDs of the
- previously assigned adapters can be assigned to another mediated matrix
- device. If an APQN is assigned to another mediated matrix device, the
- operation will terminate with an error (EADDRINUSE).
+ - Must NOT be assigned while the sysfs /sys/bus/ap/apmask and
+ sys/bus/ap/aqmask attribute files are being edited or the operation may
+ terminate with an error (EBUSY).
- In order to successfully assign a control domain, the domain number
- specified must represent a value from 0 up to the maximum domain number
- configured for the system. If a control domain number higher than the maximum
- is specified, the operation will terminate with an error (ENODEV).
+ In order to successfully assign a control domain:
+
+ * The domain number specified must represent a value from 0 up to the maximum
+ domain number configured for the system. If a control domain number higher
+ than the maximum is specified, the operation will terminate with an
+ error (ENODEV).
5. Start Guest1::
- /usr/bin/qemu-system-s390x ... -cpu host,ap=on,apqci=on,apft=on \
+ /usr/bin/qemu-system-s390x ... -cpu host,ap=on,apqci=on,apft=on,apqi=on \
-device vfio-ap,sysfsdev=/sys/devices/vfio_ap/matrix/$uuid1 ...
7. Start Guest2::
- /usr/bin/qemu-system-s390x ... -cpu host,ap=on,apqci=on,apft=on \
+ /usr/bin/qemu-system-s390x ... -cpu host,ap=on,apqci=on,apft=on,apqi=on \
-device vfio-ap,sysfsdev=/sys/devices/vfio_ap/matrix/$uuid2 ...
7. Start Guest3::
- /usr/bin/qemu-system-s390x ... -cpu host,ap=on,apqci=on,apft=on \
+ /usr/bin/qemu-system-s390x ... -cpu host,ap=on,apqci=on,apft=on,apqi=on \
-device vfio-ap,sysfsdev=/sys/devices/vfio_ap/matrix/$uuid3 ...
-When the guest is shut down, the mediated matrix devices may be removed.
+When the guest is shut down, the vfio_ap mediated devices may be removed.
-Using our example again, to remove the mediated matrix device $uuid1::
+Using our example again, to remove the vfio_ap mediated device $uuid1::
/sys/devices/vfio_ap/matrix/
--- [mdev_supported_types]
@@ -840,26 +929,143 @@ Using our example again, to remove the mediated matrix device $uuid1::
echo 1 > remove
-This will remove all of the mdev matrix device's sysfs structures including
-the mdev device itself. To recreate and reconfigure the mdev matrix device,
+This will remove all of the matrix mdev device's sysfs structures including
+the mdev device itself. To recreate and reconfigure the matrix mdev device,
all of the steps starting with step 3 will have to be performed again. Note
-that the remove will fail if a guest using the mdev is still running.
+that the remove will fail if a guest using the vfio_ap mdev is still running.
-It is not necessary to remove an mdev matrix device, but one may want to
+It is not necessary to remove a vfio_ap mdev, but one may want to
remove it if no guest will use it during the remaining lifetime of the linux
-host. If the mdev matrix device is removed, one may want to also reconfigure
+host. If the vfio_ap mdev is removed, one may want to also reconfigure
the pool of adapters and queues reserved for use by the default drivers.
+Hot plug/unplug support:
+========================
+An adapter, domain or control domain may be hot plugged into a running KVM
+guest by assigning it to the vfio_ap mediated device being used by the guest if
+the following conditions are met:
+
+* The adapter, domain or control domain must also be assigned to the host's
+ AP configuration.
+
+* Each APQN derived from the Cartesian product comprised of the APID of the
+ adapter being assigned and the APQIs of the domains assigned must reference a
+ queue device bound to the vfio_ap device driver.
+
+* To hot plug a domain, each APQN derived from the Cartesian product
+ comprised of the APQI of the domain being assigned and the APIDs of the
+ adapters assigned must reference a queue device bound to the vfio_ap device
+ driver.
+
+An adapter, domain or control domain may be hot unplugged from a running KVM
+guest by unassigning it from the vfio_ap mediated device being used by the
+guest.
+
+Over-provisioning of AP queues for a KVM guest:
+===============================================
+Over-provisioning is defined herein as the assignment of adapters or domains to
+a vfio_ap mediated device that do not reference AP devices in the host's AP
+configuration. The idea here is that when the adapter or domain becomes
+available, it will be automatically hot-plugged into the KVM guest using
+the vfio_ap mediated device to which it is assigned as long as each new APQN
+resulting from plugging it in references a queue device bound to the vfio_ap
+device driver.
+
Limitations
===========
-* The KVM/kernel interfaces do not provide a way to prevent restoring an APQN
- to the default drivers pool of a queue that is still assigned to a mediated
- device in use by a guest. It is incumbent upon the administrator to
- ensure there is no mediated device in use by a guest to which the APQN is
- assigned lest the host be given access to the private data of the AP queue
- device such as a private key configured specifically for the guest.
+Live guest migration is not supported for guests using AP devices without
+intervention by a system administrator. Before a KVM guest can be migrated,
+the vfio_ap mediated device must be removed. Unfortunately, it can not be
+removed manually (i.e., echo 1 > /sys/devices/vfio_ap/matrix/$UUID/remove) while
+the mdev is in use by a KVM guest. If the guest is being emulated by QEMU,
+its mdev can be hot unplugged from the guest in one of two ways:
+
+1. If the KVM guest was started with libvirt, you can hot unplug the mdev via
+ the following commands:
+
+ virsh detach-device <guestname> <path-to-device-xml>
+
+ For example, to hot unplug mdev 62177883-f1bb-47f0-914d-32a22e3a8804 from
+ the guest named 'my-guest':
+
+ virsh detach-device my-guest ~/config/my-guest-hostdev.xml
+
+ The contents of my-guest-hostdev.xml:
+
+.. code-block:: xml
+
+ <hostdev mode='subsystem' type='mdev' managed='no' model='vfio-ap'>
+ <source>
+ <address uuid='62177883-f1bb-47f0-914d-32a22e3a8804'/>
+ </source>
+ </hostdev>
+
+
+ virsh qemu-monitor-command <guest-name> --hmp "device-del <device-id>"
+
+ For example, to hot unplug the vfio_ap mediated device identified on the
+ qemu command line with 'id=hostdev0' from the guest named 'my-guest':
+
+.. code-block:: sh
+
+ virsh qemu-monitor-command my-guest --hmp "device_del hostdev0"
+
+2. A vfio_ap mediated device can be hot unplugged by attaching the qemu monitor
+ to the guest and using the following qemu monitor command:
+
+ (QEMU) device-del id=<device-id>
+
+ For example, to hot unplug the vfio_ap mediated device that was specified
+ on the qemu command line with 'id=hostdev0' when the guest was started:
+
+ (QEMU) device-del id=hostdev0
+
+After live migration of the KVM guest completes, an AP configuration can be
+restored to the KVM guest by hot plugging a vfio_ap mediated device on the target
+system into the guest in one of two ways:
+
+1. If the KVM guest was started with libvirt, you can hot plug a matrix mediated
+ device into the guest via the following virsh commands:
+
+ virsh attach-device <guestname> <path-to-device-xml>
+
+ For example, to hot plug mdev 62177883-f1bb-47f0-914d-32a22e3a8804 into
+ the guest named 'my-guest':
+
+ virsh attach-device my-guest ~/config/my-guest-hostdev.xml
+
+ The contents of my-guest-hostdev.xml:
+
+.. code-block:: xml
+
+ <hostdev mode='subsystem' type='mdev' managed='no' model='vfio-ap'>
+ <source>
+ <address uuid='62177883-f1bb-47f0-914d-32a22e3a8804'/>
+ </source>
+ </hostdev>
+
+
+ virsh qemu-monitor-command <guest-name> --hmp \
+ "device_add vfio-ap,sysfsdev=<path-to-mdev>,id=<device-id>"
+
+ For example, to hot plug the vfio_ap mediated device
+ 62177883-f1bb-47f0-914d-32a22e3a8804 into the guest named 'my-guest' with
+ device-id hostdev0:
+
+ virsh qemu-monitor-command my-guest --hmp \
+ "device_add vfio-ap,\
+ sysfsdev=/sys/devices/vfio_ap/matrix/62177883-f1bb-47f0-914d-32a22e3a8804,\
+ id=hostdev0"
+
+2. A vfio_ap mediated device can be hot plugged by attaching the qemu monitor
+ to the guest and using the following qemu monitor command:
+
+ (qemu) device_add "vfio-ap,sysfsdev=<path-to-mdev>,id=<device-id>"
-* Dynamically modifying the AP matrix for a running guest (which would amount to
- hot(un)plug of AP devices for the guest) is currently not supported
+ For example, to plug the vfio_ap mediated device
+ 62177883-f1bb-47f0-914d-32a22e3a8804 into the guest with the device-id
+ hostdev0:
-* Live guest migration is not supported for guests using AP devices.
+ (QEMU) device-add "vfio-ap,\
+ sysfsdev=/sys/devices/vfio_ap/matrix/62177883-f1bb-47f0-914d-32a22e3a8804,\
+ id=hostdev0"
diff --git a/Documentation/scheduler/sched-design-CFS.rst b/Documentation/scheduler/sched-design-CFS.rst
index 59b2d1fb4dc4..03db55504515 100644
--- a/Documentation/scheduler/sched-design-CFS.rst
+++ b/Documentation/scheduler/sched-design-CFS.rst
@@ -94,7 +94,7 @@ other HZ detail. Thus the CFS scheduler has no notion of "timeslices" in the
way the previous scheduler had, and has no heuristics whatsoever. There is
only one central tunable (you have to switch on CONFIG_SCHED_DEBUG):
- /proc/sys/kernel/sched_min_granularity_ns
+ /sys/kernel/debug/sched/min_granularity_ns
which can be used to tune the scheduler from "desktop" (i.e., low latencies) to
"server" (i.e., good batching) workloads. It defaults to a setting suitable
diff --git a/Documentation/scsi/ChangeLog.lpfc b/Documentation/scsi/ChangeLog.lpfc
index 2f6d595f95e1..caedc8571b45 100644
--- a/Documentation/scsi/ChangeLog.lpfc
+++ b/Documentation/scsi/ChangeLog.lpfc
@@ -401,7 +401,7 @@ Changes from 20041213 to 20041220
structure.
* Integrated patch from Christoph Hellwig <hch@lst.de> Kill
compile warnings on 64 bit platforms: %variables for %llx format
- specifiers must be caste to long long because %(u)int64_t can
+ specifiers must be cast to long long because %(u)int64_t can
just be long on 64bit platforms.
* Integrated patch from Christoph Hellwig <hch@lst.de> Removes
dead code.
diff --git a/Documentation/scsi/scsi_eh.rst b/Documentation/scsi/scsi_eh.rst
index 885395dc1f15..bad624fab823 100644
--- a/Documentation/scsi/scsi_eh.rst
+++ b/Documentation/scsi/scsi_eh.rst
@@ -87,8 +87,7 @@ with the command.
1.2.2 Completing a scmd w/ timeout
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-The timeout handler is scsi_times_out(). When a timeout occurs, this
-function
+The timeout handler is scsi_timeout(). When a timeout occurs, this function
1. invokes optional hostt->eh_timed_out() callback. Return value can
be one of
diff --git a/Documentation/scsi/scsi_mid_low_api.rst b/Documentation/scsi/scsi_mid_low_api.rst
index 63ddea2b9640..a8c5bd15a440 100644
--- a/Documentation/scsi/scsi_mid_low_api.rst
+++ b/Documentation/scsi/scsi_mid_low_api.rst
@@ -731,7 +731,7 @@ Details::
* Notes: If 'no_async_abort' is defined this callback
* will be invoked from scsi_eh thread. No other commands
* will then be queued on current host during eh.
- * Otherwise it will be called whenever scsi_times_out()
+ * Otherwise it will be called whenever scsi_timeout()
* is called due to a command timeout.
*
* Optionally defined in: LLD
diff --git a/Documentation/scsi/ufs.rst b/Documentation/scsi/ufs.rst
index fbac745b783c..885b1a736e3f 100644
--- a/Documentation/scsi/ufs.rst
+++ b/Documentation/scsi/ufs.rst
@@ -17,6 +17,8 @@ Universal Flash Storage
3.2 UTP Transfer requests
3.3 UFS error handling
3.4 SCSI Error handling
+ 4. BSG Support
+ 5. UFS Reference Clock Frequency configuration
1. Overview
@@ -193,3 +195,16 @@ UFS specifications can be found at:
- UFS - http://www.jedec.org/sites/default/files/docs/JESD220.pdf
- UFSHCI - http://www.jedec.org/sites/default/files/docs/JESD223.pdf
+
+5. UFS Reference Clock Frequency configuration
+==============================================
+
+Devicetree can define a clock named "ref_clk" under the UFS controller node
+to specify the intended reference clock frequency for the UFS storage
+parts. ACPI-based system can specify the frequency using ACPI
+Device-Specific Data property named "ref-clk-freq". In both ways the value
+is interpreted as frequency in Hz and must match one of the values given in
+the UFS specification. UFS subsystem will attempt to read the value when
+executing common controller initialization. If the value is available, UFS
+subsytem will ensure the bRefClkFreq attribute of the UFS storage device is
+set accordingly and will modify it if there is a mismatch.
diff --git a/Documentation/security/keys/core.rst b/Documentation/security/keys/core.rst
index b3ed5c581034..811b905b56bf 100644
--- a/Documentation/security/keys/core.rst
+++ b/Documentation/security/keys/core.rst
@@ -1046,7 +1046,7 @@ The keyctl syscall functions are:
"filter" is either NULL to remove a watch or a filter specification to
indicate what events are required from the key.
- See Documentation/watch_queue.rst for more information.
+ See Documentation/core-api/watch_queue.rst for more information.
Note that only one watch may be emplaced for any particular { key,
queue_fd } combination.
diff --git a/Documentation/security/landlock.rst b/Documentation/security/landlock.rst
index 5c77730b4479..c0029d5d02eb 100644
--- a/Documentation/security/landlock.rst
+++ b/Documentation/security/landlock.rst
@@ -7,7 +7,7 @@ Landlock LSM: kernel documentation
==================================
:Author: Mickaël Salaün
-:Date: May 2022
+:Date: September 2022
Landlock's goal is to create scoped access-control (i.e. sandboxing). To
harden a whole system, this feature should be available to any process,
@@ -49,13 +49,13 @@ Filesystem access rights
------------------------
All access rights are tied to an inode and what can be accessed through it.
-Reading the content of a directory doesn't imply to be allowed to read the
+Reading the content of a directory does not imply to be allowed to read the
content of a listed inode. Indeed, a file name is local to its parent
directory, and an inode can be referenced by multiple file names thanks to
(hard) links. Being able to unlink a file only has a direct impact on the
directory, not the unlinked inode. This is the reason why
-`LANDLOCK_ACCESS_FS_REMOVE_FILE` or `LANDLOCK_ACCESS_FS_REFER` are not allowed
-to be tied to files but only to directories.
+``LANDLOCK_ACCESS_FS_REMOVE_FILE`` or ``LANDLOCK_ACCESS_FS_REFER`` are not
+allowed to be tied to files but only to directories.
Tests
=====
diff --git a/Documentation/security/secrets/coco.rst b/Documentation/security/secrets/coco.rst
index 262e7abb1b24..087e2d1ae38b 100644
--- a/Documentation/security/secrets/coco.rst
+++ b/Documentation/security/secrets/coco.rst
@@ -98,6 +98,6 @@ References
See [sev-api-spec]_ for more info regarding SEV ``LAUNCH_SECRET`` operation.
-.. [sev] Documentation/virt/kvm/amd-memory-encryption.rst
+.. [sev] Documentation/virt/kvm/x86/amd-memory-encryption.rst
.. [secrets-coco-abi] Documentation/ABI/testing/securityfs-secrets-coco
.. [sev-api-spec] https://www.amd.com/system/files/TechDocs/55766_SEV-KM_API_Specification.pdf
diff --git a/Documentation/security/siphash.rst b/Documentation/security/siphash.rst
index a10380cb78e5..023bd95c74a5 100644
--- a/Documentation/security/siphash.rst
+++ b/Documentation/security/siphash.rst
@@ -85,7 +85,7 @@ Often times the XuY functions will not be large enough, and instead you'll
want to pass a pre-filled struct to siphash. When doing this, it's important
to always ensure the struct has no padding holes. The easiest way to do this
is to simply arrange the members of the struct in descending order of size,
-and to use offsetendof() instead of sizeof() for getting the size. For
+and to use offsetofend() instead of sizeof() for getting the size. For
performance reasons, if possible, it's probably a good thing to align the
struct to the right boundary. Here's an example::
diff --git a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
index 176b73583b7a..07a620c5ca74 100644
--- a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
+++ b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
@@ -3565,13 +3565,17 @@ given size.
The second argument (type) and the third argument (device pointer) are
dependent on the bus. For normal devices, pass the device pointer
(typically identical as ``card->dev``) to the third argument with
-``SNDRV_DMA_TYPE_DEV`` type. For the continuous buffer unrelated to the
+``SNDRV_DMA_TYPE_DEV`` type.
+
+For the continuous buffer unrelated to the
bus can be pre-allocated with ``SNDRV_DMA_TYPE_CONTINUOUS`` type.
You can pass NULL to the device pointer in that case, which is the
default mode implying to allocate with ``GFP_KERNEL`` flag.
-If you need a different GFP flag, you can pass it by encoding the flag
-into the device pointer via a special macro
-:c:func:`snd_dma_continuous_data()`.
+If you need a restricted (lower) address, set up the coherent DMA mask
+bits for the device, and pass the device pointer, like the normal
+device memory allocations. For this type, it's still allowed to pass
+NULL to the device pointer, too, if no address restriction is needed.
+
For the scatter-gather buffers, use ``SNDRV_DMA_TYPE_DEV_SG`` with the
device pointer (see the `Non-Contiguous Buffers`_ section).
@@ -3811,15 +3815,6 @@ arguments here. Since each vmalloc call should succeed at any time,
we don't need to pre-allocate the buffers like other continuous
pages.
-If you need the 32bit DMA allocation, pass the device pointer encoded
-by :c:func:`snd_dma_continuous_data()` with ``GFP_KERNEL|__GFP_DMA32``
-argument.
-
-::
-
- snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
- snd_dma_continuous_data(GFP_KERNEL | __GFP_DMA32), 0, 0);
-
Proc Interface
==============
diff --git a/Documentation/sound/soc/codec.rst b/Documentation/sound/soc/codec.rst
index 57df149acafc..af973c4cac93 100644
--- a/Documentation/sound/soc/codec.rst
+++ b/Documentation/sound/soc/codec.rst
@@ -132,7 +132,7 @@ The codec driver also supports the following ALSA PCM operations:-
};
Please refer to the ALSA driver PCM documentation for details.
-http://www.alsa-project.org/~iwai/writing-an-alsa-driver/
+https://www.kernel.org/doc/html/latest/sound/kernel-api/writing-an-alsa-driver.html
DAPM description
diff --git a/Documentation/sound/soc/platform.rst b/Documentation/sound/soc/platform.rst
index c1badea53d3d..7036630eaf01 100644
--- a/Documentation/sound/soc/platform.rst
+++ b/Documentation/sound/soc/platform.rst
@@ -46,7 +46,7 @@ snd_soc_component_driver:-
};
Please refer to the ALSA driver documentation for details of audio DMA.
-http://www.alsa-project.org/~iwai/writing-an-alsa-driver/
+https://www.kernel.org/doc/html/latest/sound/kernel-api/writing-an-alsa-driver.html
An example DMA driver is soc/pxa/pxa2xx-pcm.c
diff --git a/Documentation/sphinx/automarkup.py b/Documentation/sphinx/automarkup.py
index cc348b219fca..06b34740bf90 100644
--- a/Documentation/sphinx/automarkup.py
+++ b/Documentation/sphinx/automarkup.py
@@ -121,13 +121,20 @@ def markup_refs(docname, app, node):
return repl
#
+# Keep track of cross-reference lookups that failed so we don't have to
+# do them again.
+#
+failed_lookups = { }
+def failure_seen(target):
+ return (target) in failed_lookups
+def note_failure(target):
+ failed_lookups[target] = True
+
+#
# In sphinx3 we can cross-reference to C macro and function, each one with its
# own C role, but both match the same regex, so we try both.
#
def markup_func_ref_sphinx3(docname, app, match):
- class_str = ['c-func', 'c-macro']
- reftype_str = ['function', 'macro']
-
cdom = app.env.domains['c']
#
# Go through the dance of getting an xref out of the C domain
@@ -143,27 +150,28 @@ def markup_func_ref_sphinx3(docname, app, match):
if base_target not in Skipnames:
for target in possible_targets:
- if target not in Skipfuncs:
- for class_s, reftype_s in zip(class_str, reftype_str):
- lit_text = nodes.literal(classes=['xref', 'c', class_s])
- lit_text += target_text
- pxref = addnodes.pending_xref('', refdomain = 'c',
- reftype = reftype_s,
- reftarget = target, modname = None,
- classname = None)
- #
- # XXX The Latex builder will throw NoUri exceptions here,
- # work around that by ignoring them.
- #
- try:
- xref = cdom.resolve_xref(app.env, docname, app.builder,
- reftype_s, target, pxref,
- lit_text)
- except NoUri:
- xref = None
-
- if xref:
- return xref
+ if (target not in Skipfuncs) and not failure_seen(target):
+ lit_text = nodes.literal(classes=['xref', 'c', 'c-func'])
+ lit_text += target_text
+ pxref = addnodes.pending_xref('', refdomain = 'c',
+ reftype = 'function',
+ reftarget = target,
+ modname = None,
+ classname = None)
+ #
+ # XXX The Latex builder will throw NoUri exceptions here,
+ # work around that by ignoring them.
+ #
+ try:
+ xref = cdom.resolve_xref(app.env, docname, app.builder,
+ 'function', target, pxref,
+ lit_text)
+ except NoUri:
+ xref = None
+
+ if xref:
+ return xref
+ note_failure(target)
return target_text
diff --git a/Documentation/sphinx/kerneldoc-preamble.sty b/Documentation/sphinx/kerneldoc-preamble.sty
index 2a29cbe51396..9707e033c8c4 100644
--- a/Documentation/sphinx/kerneldoc-preamble.sty
+++ b/Documentation/sphinx/kerneldoc-preamble.sty
@@ -70,8 +70,16 @@
% Translations have Asian (CJK) characters which are only displayed if
% xeCJK is used
+\usepackage{ifthen}
+\newboolean{enablecjk}
+\setboolean{enablecjk}{false}
\IfFontExistsTF{Noto Sans CJK SC}{
- % Load xeCJK when CJK font is available
+ \IfFileExists{xeCJK.sty}{
+ \setboolean{enablecjk}{true}
+ }{}
+}{}
+\ifthenelse{\boolean{enablecjk}}{
+ % Load xeCJK when both the Noto Sans CJK font and xeCJK.sty are available.
\usepackage{xeCJK}
% Noto CJK fonts don't provide slant shape. [AutoFakeSlant] permits
% its emulation.
@@ -196,7 +204,7 @@
% Inactivate CJK after tableofcontents
\apptocmd{\sphinxtableofcontents}{\kerneldocCJKoff}{}{}
\xeCJKsetup{CJKspace = true}% For inter-phrase space of Korean TOC
-}{ % No CJK font found
+}{ % Don't enable CJK
% Custom macros to on/off CJK and switch CJK fonts (Dummy)
\newcommand{\kerneldocCJKon}{}
\newcommand{\kerneldocCJKoff}{}
@@ -204,14 +212,16 @@
%% and ignore the argument (#1) in their definitions, whole contents of
%% CJK chapters can be ignored.
\newcommand{\kerneldocBeginSC}[1]{%
- %% Put a note on missing CJK fonts in place of zh_CN translation.
- \begin{sphinxadmonition}{note}{Note on missing fonts:}
+ %% Put a note on missing CJK fonts or the xecjk package in place of
+ %% zh_CN translation.
+ \begin{sphinxadmonition}{note}{Note on missing fonts and a package:}
Translations of Simplified Chinese (zh\_CN), Traditional Chinese
(zh\_TW), Korean (ko\_KR), and Japanese (ja\_JP) were skipped
- due to the lack of suitable font families.
+ due to the lack of suitable font families and/or the texlive-xecjk
+ package.
If you want them, please install ``Noto Sans CJK'' font families
- by following instructions from
+ along with the texlive-xecjk package by following instructions from
\sphinxcode{./scripts/sphinx-pre-install}.
Having optional ``Noto Serif CJK'' font families will improve
the looks of those translations.
diff --git a/Documentation/staging/index.rst b/Documentation/staging/index.rst
index abd0d18254d2..ded8254bc0d7 100644
--- a/Documentation/staging/index.rst
+++ b/Documentation/staging/index.rst
@@ -14,45 +14,3 @@ Unsorted Documentation
static-keys
tee
xz
-
-Atomic Types
-============
-
-.. raw:: latex
-
- \footnotesize
-
-.. include:: ../atomic_t.txt
- :literal:
-
-.. raw:: latex
-
- \normalsize
-
-Atomic bitops
-=============
-
-.. raw:: latex
-
- \footnotesize
-
-.. include:: ../atomic_bitops.txt
- :literal:
-
-.. raw:: latex
-
- \normalsize
-
-Memory Barriers
-===============
-
-.. raw:: latex
-
- \footnotesize
-
-.. include:: ../memory-barriers.txt
- :literal:
-
-.. raw:: latex
-
- \normalsize
diff --git a/Documentation/staging/static-keys.rst b/Documentation/staging/static-keys.rst
index 38290b9f25eb..b0a519f456cf 100644
--- a/Documentation/staging/static-keys.rst
+++ b/Documentation/staging/static-keys.rst
@@ -201,9 +201,6 @@ static_key->entry field makes use of the two least significant bits.
* ``void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type)``,
see: arch/x86/kernel/jump_label.c
-* ``__init_or_module void arch_jump_label_transform_static(struct jump_entry *entry, enum jump_label_type type)``,
- see: arch/x86/kernel/jump_label.c
-
* ``struct jump_entry``,
see: arch/x86/include/asm/jump_label.h
diff --git a/Documentation/subsystem-apis.rst b/Documentation/subsystem-apis.rst
new file mode 100644
index 000000000000..af65004a80aa
--- /dev/null
+++ b/Documentation/subsystem-apis.rst
@@ -0,0 +1,58 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+==============================
+Kernel subsystem documentation
+==============================
+
+These books get into the details of how specific kernel subsystems work
+from the point of view of a kernel developer. Much of the information here
+is taken directly from the kernel source, with supplemental material added
+as needed (or at least as we managed to add it — probably *not* all that is
+needed).
+
+**Fixme**: much more organizational work is needed here.
+
+.. toctree::
+ :maxdepth: 1
+
+ driver-api/index
+ core-api/index
+ locking/index
+ accounting/index
+ block/index
+ cdrom/index
+ cpu-freq/index
+ fb/index
+ fpga/index
+ hid/index
+ i2c/index
+ iio/index
+ isdn/index
+ infiniband/index
+ leds/index
+ netlabel/index
+ networking/index
+ pcmcia/index
+ power/index
+ target/index
+ timers/index
+ spi/index
+ w1/index
+ watchdog/index
+ virt/index
+ input/index
+ hwmon/index
+ gpu/index
+ security/index
+ sound/index
+ crypto/index
+ filesystems/index
+ mm/index
+ bpf/index
+ usb/index
+ PCI/index
+ scsi/index
+ misc-devices/index
+ scheduler/index
+ mhi/index
+ peci/index
diff --git a/Documentation/tools/rtla/rtla-timerlat-hist.rst b/Documentation/tools/rtla/rtla-timerlat-hist.rst
index e12eae1f3301..6bf7f0ca4556 100644
--- a/Documentation/tools/rtla/rtla-timerlat-hist.rst
+++ b/Documentation/tools/rtla/rtla-timerlat-hist.rst
@@ -33,7 +33,7 @@ EXAMPLE
=======
In the example below, **rtla timerlat hist** is set to run for *10* minutes,
in the cpus *0-4*, *skipping zero* only lines. Moreover, **rtla timerlat
-hist** will change the priority of the *timelat* threads to run under
+hist** will change the priority of the *timerlat* threads to run under
*SCHED_DEADLINE* priority, with a *10us* runtime every *1ms* period. The
*1ms* period is also passed to the *timerlat* tracer::
diff --git a/Documentation/trace/coresight/coresight-cpu-debug.rst b/Documentation/trace/coresight/coresight-cpu-debug.rst
index 993dd294b81b..836b35532667 100644
--- a/Documentation/trace/coresight/coresight-cpu-debug.rst
+++ b/Documentation/trace/coresight/coresight-cpu-debug.rst
@@ -117,7 +117,8 @@ divide into below cases:
Device Tree Bindings
--------------------
-See Documentation/devicetree/bindings/arm/coresight-cpu-debug.txt for details.
+See Documentation/devicetree/bindings/arm/arm,coresight-cpu-debug.yaml for
+details.
How to use the module
diff --git a/Documentation/trace/coresight/coresight-etm4x-reference.rst b/Documentation/trace/coresight/coresight-etm4x-reference.rst
index d25dfe86af9b..70e34b8c81c1 100644
--- a/Documentation/trace/coresight/coresight-etm4x-reference.rst
+++ b/Documentation/trace/coresight/coresight-etm4x-reference.rst
@@ -71,6 +71,20 @@ the ‘TRC’ prefix.
----
+:File: ``ts_source`` (ro)
+:Trace Registers: None.
+:Notes:
+ When FEAT_TRF is implemented, value of TRFCR_ELx.TS used for trace session. Otherwise -1
+ indicates an unknown time source. Check trcidr0.tssize to see if a global timestamp is
+ available.
+
+:Example:
+ ``$> cat ts_source``
+
+ ``$> 1``
+
+----
+
:File: ``addr_idx`` (rw)
:Trace Registers: None.
:Notes:
@@ -650,13 +664,26 @@ Bit assignments shown below:-
parameter is set this value is applied to the currently indexed
address range.
+.. _coresight-branch-broadcast:
**bit (4):**
ETM_MODE_BB
**description:**
- Set to enable branch broadcast if supported in hardware [IDR0].
+ Set to enable branch broadcast if supported in hardware [IDR0]. The primary use for this feature
+ is when code is patched dynamically at run time and the full program flow may not be able to be
+ reconstructed using only conditional branches.
+
+ There is currently no support in Perf for supplying modified binaries to the decoder, so this
+ feature is only inteded to be used for debugging purposes or with a 3rd party tool.
+
+ Choosing this option will result in a significant increase in the amount of trace generated -
+ possible danger of overflows, or fewer instructions covered. Note, that this option also
+ overrides any setting of :ref:`ETM_MODE_RETURNSTACK <coresight-return-stack>`, so where a branch
+ broadcast range overlaps a return stack range, return stacks will not be available for that
+ range.
+.. _coresight-cycle-accurate:
**bit (5):**
ETMv4_MODE_CYCACC
@@ -678,6 +705,7 @@ Bit assignments shown below:-
**description:**
Set to enable virtual machine ID tracing if supported [IDR2].
+.. _coresight-timestamp:
**bit (11):**
ETMv4_MODE_TIMESTAMP
@@ -685,6 +713,7 @@ Bit assignments shown below:-
**description:**
Set to enable timestamp generation if supported [IDR0].
+.. _coresight-return-stack:
**bit (12):**
ETM_MODE_RETURNSTACK
diff --git a/Documentation/trace/coresight/coresight.rst b/Documentation/trace/coresight/coresight.rst
index a15571d96cc8..4a71ea6cb390 100644
--- a/Documentation/trace/coresight/coresight.rst
+++ b/Documentation/trace/coresight/coresight.rst
@@ -130,7 +130,7 @@ Misc:
Device Tree Bindings
--------------------
-See Documentation/devicetree/bindings/arm/coresight.txt for details.
+See Documentation/devicetree/bindings/arm/arm,coresight-\*.yaml for details.
As of this writing drivers for ITM, STMs and CTIs are not provided but are
expected to be added as the solution matures.
@@ -339,7 +339,8 @@ Preference is given to the former as using the sysFS interface
requires a deep understanding of the Coresight HW. The following sections
provide details on using both methods.
-1) Using the sysFS interface:
+Using the sysFS interface
+~~~~~~~~~~~~~~~~~~~~~~~~~
Before trace collection can start, a coresight sink needs to be identified.
There is no limit on the amount of sinks (nor sources) that can be enabled at
@@ -446,7 +447,8 @@ wealth of possibilities that coresight provides.
Instruction 0 0x8026B588 E8BD8000 true LDM sp!,{pc}
Timestamp Timestamp: 17107041535
-2) Using perf framework:
+Using perf framework
+~~~~~~~~~~~~~~~~~~~~
Coresight tracers are represented using the Perf framework's Performance
Monitoring Unit (PMU) abstraction. As such the perf framework takes charge of
@@ -495,7 +497,11 @@ More information on the above and other example on how to use Coresight with
the perf tools can be found in the "HOWTO.md" file of the openCSD gitHub
repository [#third]_.
-2.1) AutoFDO analysis using the perf tools:
+Advanced perf framework usage
+-----------------------------
+
+AutoFDO analysis using the perf tools
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
perf can be used to record and analyze trace of programs.
@@ -513,7 +519,8 @@ The --itrace option controls the type and frequency of synthesized events
Note that only 64-bit programs are currently supported - further work is
required to support instruction decode of 32-bit Arm programs.
-2.2) Tracing PID
+Tracing PID
+~~~~~~~~~~~
The kernel can be built to write the PID value into the PE ContextID registers.
For a kernel running at EL1, the PID is stored in CONTEXTIDR_EL1. A PE may
@@ -547,7 +554,7 @@ wants to trace PIDs for both host and guest, the two configs "contextid1" and
Generating coverage files for Feedback Directed Optimization: AutoFDO
----------------------------------------------------------------------
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
'perf inject' accepts the --itrace option in which case tracing data is
removed and replaced with the synthesized events. e.g.
@@ -578,6 +585,45 @@ sort example is from the AutoFDO tutorial (https://gcc.gnu.org/wiki/AutoFDO/Tuto
Bubble sorting array of 30000 elements
5806 ms
+Config option formats
+~~~~~~~~~~~~~~~~~~~~~
+
+The following strings can be provided between // on the perf command line to enable various options.
+They are also listed in the folder /sys/bus/event_source/devices/cs_etm/format/
+
+.. list-table::
+ :header-rows: 1
+
+ * - Option
+ - Description
+ * - branch_broadcast
+ - Session local version of the system wide setting:
+ :ref:`ETM_MODE_BB <coresight-branch-broadcast>`
+ * - contextid
+ - See `Tracing PID`_
+ * - contextid1
+ - See `Tracing PID`_
+ * - contextid2
+ - See `Tracing PID`_
+ * - configid
+ - Selection for a custom configuration. This is an implementation detail and not used directly,
+ see :ref:`trace/coresight/coresight-config:Using Configurations in perf`
+ * - preset
+ - Override for parameters in a custom configuration, see
+ :ref:`trace/coresight/coresight-config:Using Configurations in perf`
+ * - sinkid
+ - Hashed version of the string to select a sink, automatically set when using the @ notation.
+ This is an internal implementation detail and is not used directly, see `Using perf
+ framework`_.
+ * - cycacc
+ - Session local version of the system wide setting: :ref:`ETMv4_MODE_CYCACC
+ <coresight-cycle-accurate>`
+ * - retstack
+ - Session local version of the system wide setting: :ref:`ETM_MODE_RETURNSTACK
+ <coresight-return-stack>`
+ * - timestamp
+ - Session local version of the system wide setting: :ref:`ETMv4_MODE_TIMESTAMP
+ <coresight-timestamp>`
How to use the STM module
-------------------------
diff --git a/Documentation/trace/hisi-ptt.rst b/Documentation/trace/hisi-ptt.rst
new file mode 100644
index 000000000000..4f87d8e21065
--- /dev/null
+++ b/Documentation/trace/hisi-ptt.rst
@@ -0,0 +1,298 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================================
+HiSilicon PCIe Tune and Trace device
+======================================
+
+Introduction
+============
+
+HiSilicon PCIe tune and trace device (PTT) is a PCIe Root Complex
+integrated Endpoint (RCiEP) device, providing the capability
+to dynamically monitor and tune the PCIe link's events (tune),
+and trace the TLP headers (trace). The two functions are independent,
+but is recommended to use them together to analyze and enhance the
+PCIe link's performance.
+
+On Kunpeng 930 SoC, the PCIe Root Complex is composed of several
+PCIe cores. Each PCIe core includes several Root Ports and a PTT
+RCiEP, like below. The PTT device is capable of tuning and
+tracing the links of the PCIe core.
+::
+
+ +--------------Core 0-------+
+ | | [ PTT ] |
+ | | [Root Port]---[Endpoint]
+ | | [Root Port]---[Endpoint]
+ | | [Root Port]---[Endpoint]
+ Root Complex |------Core 1-------+
+ | | [ PTT ] |
+ | | [Root Port]---[ Switch ]---[Endpoint]
+ | | [Root Port]---[Endpoint] `-[Endpoint]
+ | | [Root Port]---[Endpoint]
+ +---------------------------+
+
+The PTT device driver registers one PMU device for each PTT device.
+The name of each PTT device is composed of 'hisi_ptt' prefix with
+the id of the SICL and the Core where it locates. The Kunpeng 930
+SoC encapsulates multiple CPU dies (SCCL, Super CPU Cluster) and
+IO dies (SICL, Super I/O Cluster), where there's one PCIe Root
+Complex for each SICL.
+::
+
+ /sys/devices/hisi_ptt<sicl_id>_<core_id>
+
+Tune
+====
+
+PTT tune is designed for monitoring and adjusting PCIe link parameters (events).
+Currently we support events in 2 classes. The scope of the events
+covers the PCIe core to which the PTT device belongs.
+
+Each event is presented as a file under $(PTT PMU dir)/tune, and
+a simple open/read/write/close cycle will be used to tune the event.
+::
+
+ $ cd /sys/devices/hisi_ptt<sicl_id>_<core_id>/tune
+ $ ls
+ qos_tx_cpl qos_tx_np qos_tx_p
+ tx_path_rx_req_alloc_buf_level
+ tx_path_tx_req_alloc_buf_level
+ $ cat qos_tx_dp
+ 1
+ $ echo 2 > qos_tx_dp
+ $ cat qos_tx_dp
+ 2
+
+Current value (numerical value) of the event can be simply read
+from the file, and the desired value written to the file to tune.
+
+1. Tx Path QoS Control
+------------------------
+
+The following files are provided to tune the QoS of the tx path of
+the PCIe core.
+
+- qos_tx_cpl: weight of Tx completion TLPs
+- qos_tx_np: weight of Tx non-posted TLPs
+- qos_tx_p: weight of Tx posted TLPs
+
+The weight influences the proportion of certain packets on the PCIe link.
+For example, for the storage scenario, increase the proportion
+of the completion packets on the link to enhance the performance as
+more completions are consumed.
+
+The available tune data of these events is [0, 1, 2].
+Writing a negative value will return an error, and out of range
+values will be converted to 2. Note that the event value just
+indicates a probable level, but is not precise.
+
+2. Tx Path Buffer Control
+-------------------------
+
+Following files are provided to tune the buffer of tx path of the PCIe core.
+
+- rx_alloc_buf_level: watermark of Rx requested
+- tx_alloc_buf_level: watermark of Tx requested
+
+These events influence the watermark of the buffer allocated for each
+type. Rx means the inbound while Tx means outbound. The packets will
+be stored in the buffer first and then transmitted either when the
+watermark reached or when timed out. For a busy direction, you should
+increase the related buffer watermark to avoid frequently posting and
+thus enhance the performance. In most cases just keep the default value.
+
+The available tune data of above events is [0, 1, 2].
+Writing a negative value will return an error, and out of range
+values will be converted to 2. Note that the event value just
+indicates a probable level, but is not precise.
+
+Trace
+=====
+
+PTT trace is designed for dumping the TLP headers to the memory, which
+can be used to analyze the transactions and usage condition of the PCIe
+Link. You can choose to filter the traced headers by either Requester ID,
+or those downstream of a set of Root Ports on the same core of the PTT
+device. It's also supported to trace the headers of certain type and of
+certain direction.
+
+You can use the perf command `perf record` to set the parameters, start
+trace and get the data. It's also supported to decode the trace
+data with `perf report`. The control parameters for trace is inputted
+as event code for each events, which will be further illustrated later.
+An example usage is like
+::
+
+ $ perf record -e hisi_ptt0_2/filter=0x80001,type=1,direction=1,
+ format=1/ -- sleep 5
+
+This will trace the TLP headers downstream root port 0000:00:10.1 (event
+code for event 'filter' is 0x80001) with type of posted TLP requests,
+direction of inbound and traced data format of 8DW.
+
+1. Filter
+---------
+
+The TLP headers to trace can be filtered by the Root Ports or the Requester ID
+of the Endpoint, which are located on the same core of the PTT device. You can
+set the filter by specifying the `filter` parameter which is required to start
+the trace. The parameter value is 20 bit. Bit 19 indicates the filter type.
+1 for Root Port filter and 0 for Requester filter. Bit[15:0] indicates the
+filter value. The value for a Root Port is a mask of the core port id which is
+calculated from its PCI Slot ID as (slotid & 7) * 2. The value for a Requester
+is the Requester ID (Device ID of the PCIe function). Bit[18:16] is currently
+reserved for extension.
+
+For example, if the desired filter is Endpoint function 0000:01:00.1 the filter
+value will be 0x00101. If the desired filter is Root Port 0000:00:10.0 then
+then filter value is calculated as 0x80001.
+
+Note that multiple Root Ports can be specified at one time, but only one
+Endpoint function can be specified in one trace. Specifying both Root Port
+and function at the same time is not supported. Driver maintains a list of
+available filters and will check the invalid inputs.
+
+Currently the available filters are detected in driver's probe. If the supported
+devices are removed/added after probe, you may need to reload the driver to update
+the filters.
+
+2. Type
+-------
+
+You can trace the TLP headers of certain types by specifying the `type`
+parameter, which is required to start the trace. The parameter value is
+8 bit. Current supported types and related values are shown below:
+
+- 8'b00000001: posted requests (P)
+- 8'b00000010: non-posted requests (NP)
+- 8'b00000100: completions (CPL)
+
+You can specify multiple types when tracing inbound TLP headers, but can only
+specify one when tracing outbound TLP headers.
+
+3. Direction
+------------
+
+You can trace the TLP headers from certain direction, which is relative
+to the Root Port or the PCIe core, by specifying the `direction` parameter.
+This is optional and the default parameter is inbound. The parameter value
+is 4 bit. When the desired format is 4DW, directions and related values
+supported are shown below:
+
+- 4'b0000: inbound TLPs (P, NP, CPL)
+- 4'b0001: outbound TLPs (P, NP, CPL)
+- 4'b0010: outbound TLPs (P, NP, CPL) and inbound TLPs (P, NP, CPL B)
+- 4'b0011: outbound TLPs (P, NP, CPL) and inbound TLPs (CPL A)
+
+When the desired format is 8DW, directions and related values supported are
+shown below:
+
+- 4'b0000: reserved
+- 4'b0001: outbound TLPs (P, NP, CPL)
+- 4'b0010: inbound TLPs (P, NP, CPL B)
+- 4'b0011: inbound TLPs (CPL A)
+
+Inbound completions are classified into two types:
+
+- completion A (CPL A): completion of CHI/DMA/Native non-posted requests, except for CPL B
+- completion B (CPL B): completion of DMA remote2local and P2P non-posted requests
+
+4. Format
+--------------
+
+You can change the format of the traced TLP headers by specifying the
+`format` parameter. The default format is 4DW. The parameter value is 4 bit.
+Current supported formats and related values are shown below:
+
+- 4'b0000: 4DW length per TLP header
+- 4'b0001: 8DW length per TLP header
+
+The traced TLP header format is different from the PCIe standard.
+
+When using the 8DW data format, the entire TLP header is logged
+(Header DW0-3 shown below). For example, the TLP header for Memory
+Reads with 64-bit addresses is shown in PCIe r5.0, Figure 2-17;
+the header for Configuration Requests is shown in Figure 2.20, etc.
+
+In addition, 8DW trace buffer entries contain a timestamp and
+possibly a prefix for a PASID TLP prefix (see Figure 6-20, PCIe r5.0).
+Otherwise this field will be all 0.
+
+The bit[31:11] of DW0 is always 0x1fffff, which can be
+used to distinguish the data format. 8DW format is like
+::
+
+ bits [ 31:11 ][ 10:0 ]
+ |---------------------------------------|-------------------|
+ DW0 [ 0x1fffff ][ Reserved (0x7ff) ]
+ DW1 [ Prefix ]
+ DW2 [ Header DW0 ]
+ DW3 [ Header DW1 ]
+ DW4 [ Header DW2 ]
+ DW5 [ Header DW3 ]
+ DW6 [ Reserved (0x0) ]
+ DW7 [ Time ]
+
+When using the 4DW data format, DW0 of the trace buffer entry
+contains selected fields of DW0 of the TLP, together with a
+timestamp. DW1-DW3 of the trace buffer entry contain DW1-DW3
+directly from the TLP header.
+
+4DW format is like
+::
+
+ bits [31:30] [ 29:25 ][24][23][22][21][ 20:11 ][ 10:0 ]
+ |-----|---------|---|---|---|---|-------------|-------------|
+ DW0 [ Fmt ][ Type ][T9][T8][TH][SO][ Length ][ Time ]
+ DW1 [ Header DW1 ]
+ DW2 [ Header DW2 ]
+ DW3 [ Header DW3 ]
+
+5. Memory Management
+--------------------
+
+The traced TLP headers will be written to the memory allocated
+by the driver. The hardware accepts 4 DMA address with same size,
+and writes the buffer sequentially like below. If DMA addr 3 is
+finished and the trace is still on, it will return to addr 0.
+::
+
+ +->[DMA addr 0]->[DMA addr 1]->[DMA addr 2]->[DMA addr 3]-+
+ +---------------------------------------------------------+
+
+Driver will allocate each DMA buffer of 4MiB. The finished buffer
+will be copied to the perf AUX buffer allocated by the perf core.
+Once the AUX buffer is full while the trace is still on, driver
+will commit the AUX buffer first and then apply for a new one with
+the same size. The size of AUX buffer is default to 16MiB. User can
+adjust the size by specifying the `-m` parameter of the perf command.
+
+6. Decoding
+-----------
+
+You can decode the traced data with `perf report -D` command (currently
+only support to dump the raw trace data). The traced data will be decoded
+according to the format described previously (take 8DW as an example):
+::
+
+ [...perf headers and other information]
+ . ... HISI PTT data: size 4194304 bytes
+ . 00000000: 00 00 00 00 Prefix
+ . 00000004: 01 00 00 60 Header DW0
+ . 00000008: 0f 1e 00 01 Header DW1
+ . 0000000c: 04 00 00 00 Header DW2
+ . 00000010: 40 00 81 02 Header DW3
+ . 00000014: 33 c0 04 00 Time
+ . 00000020: 00 00 00 00 Prefix
+ . 00000024: 01 00 00 60 Header DW0
+ . 00000028: 0f 1e 00 01 Header DW1
+ . 0000002c: 04 00 00 00 Header DW2
+ . 00000030: 40 00 81 02 Header DW3
+ . 00000034: 02 00 00 00 Time
+ . 00000040: 00 00 00 00 Prefix
+ . 00000044: 01 00 00 60 Header DW0
+ . 00000048: 0f 1e 00 01 Header DW1
+ . 0000004c: 04 00 00 00 Header DW2
+ . 00000050: 40 00 81 02 Header DW3
+ [...]
diff --git a/Documentation/trace/histogram.rst b/Documentation/trace/histogram.rst
index 859fd1b76c63..c1b685a38f6b 100644
--- a/Documentation/trace/histogram.rst
+++ b/Documentation/trace/histogram.rst
@@ -412,7 +412,7 @@ Extended error information
Because the default sort key above is 'hitcount', the above shows a
the list of call_sites by increasing hitcount, so that at the bottom
we see the functions that made the most kmalloc calls during the
- run. If instead we we wanted to see the top kmalloc callers in
+ run. If instead we wanted to see the top kmalloc callers in
terms of the number of bytes requested rather than the number of
calls, and we wanted the top caller to appear at the top, we can use
the 'sort' parameter, along with the 'descending' modifier::
diff --git a/Documentation/trace/index.rst b/Documentation/trace/index.rst
index f9b7bcb5a630..ea25a9220f92 100644
--- a/Documentation/trace/index.rst
+++ b/Documentation/trace/index.rst
@@ -32,3 +32,5 @@ Linux Tracing Technologies
sys-t
coresight/index
user_events
+ rv/index
+ hisi-ptt
diff --git a/Documentation/trace/kprobes.rst b/Documentation/trace/kprobes.rst
index f318bceda1e6..48cf778a2468 100644
--- a/Documentation/trace/kprobes.rst
+++ b/Documentation/trace/kprobes.rst
@@ -328,8 +328,8 @@ Configuring Kprobes
===================
When configuring the kernel using make menuconfig/xconfig/oldconfig,
-ensure that CONFIG_KPROBES is set to "y". Under "General setup", look
-for "Kprobes".
+ensure that CONFIG_KPROBES is set to "y", look for "Kprobes" under
+"General architecture-dependent options".
So that you can load and unload Kprobes-based instrumentation modules,
make sure "Loadable module support" (CONFIG_MODULES) and "Module
diff --git a/Documentation/trace/kprobetrace.rst b/Documentation/trace/kprobetrace.rst
index b175d88f31eb..4274cc6a2f94 100644
--- a/Documentation/trace/kprobetrace.rst
+++ b/Documentation/trace/kprobetrace.rst
@@ -28,10 +28,10 @@ Synopsis of kprobe_events
-------------------------
::
- p[:[GRP/]EVENT] [MOD:]SYM[+offs]|MEMADDR [FETCHARGS] : Set a probe
- r[MAXACTIVE][:[GRP/]EVENT] [MOD:]SYM[+0] [FETCHARGS] : Set a return probe
- p:[GRP/]EVENT] [MOD:]SYM[+0]%return [FETCHARGS] : Set a return probe
- -:[GRP/]EVENT : Clear a probe
+ p[:[GRP/][EVENT]] [MOD:]SYM[+offs]|MEMADDR [FETCHARGS] : Set a probe
+ r[MAXACTIVE][:[GRP/][EVENT]] [MOD:]SYM[+0] [FETCHARGS] : Set a return probe
+ p[:[GRP/][EVENT]] [MOD:]SYM[+0]%return [FETCHARGS] : Set a return probe
+ -:[GRP/][EVENT] : Clear a probe
GRP : Group name. If omitted, use "kprobes" for it.
EVENT : Event name. If omitted, the event name is generated
diff --git a/Documentation/trace/rv/da_monitor_instrumentation.rst b/Documentation/trace/rv/da_monitor_instrumentation.rst
new file mode 100644
index 000000000000..6c67c7b57811
--- /dev/null
+++ b/Documentation/trace/rv/da_monitor_instrumentation.rst
@@ -0,0 +1,171 @@
+Deterministic Automata Instrumentation
+======================================
+
+The RV monitor file created by dot2k, with the name "$MODEL_NAME.c"
+includes a section dedicated to instrumentation.
+
+In the example of the wip.dot monitor created on [1], it will look like::
+
+ /*
+ * This is the instrumentation part of the monitor.
+ *
+ * This is the section where manual work is required. Here the kernel events
+ * are translated into model's event.
+ *
+ */
+ static void handle_preempt_disable(void *data, /* XXX: fill header */)
+ {
+ da_handle_event_wip(preempt_disable_wip);
+ }
+
+ static void handle_preempt_enable(void *data, /* XXX: fill header */)
+ {
+ da_handle_event_wip(preempt_enable_wip);
+ }
+
+ static void handle_sched_waking(void *data, /* XXX: fill header */)
+ {
+ da_handle_event_wip(sched_waking_wip);
+ }
+
+ static int enable_wip(void)
+ {
+ int retval;
+
+ retval = da_monitor_init_wip();
+ if (retval)
+ return retval;
+
+ rv_attach_trace_probe("wip", /* XXX: tracepoint */, handle_preempt_disable);
+ rv_attach_trace_probe("wip", /* XXX: tracepoint */, handle_preempt_enable);
+ rv_attach_trace_probe("wip", /* XXX: tracepoint */, handle_sched_waking);
+
+ return 0;
+ }
+
+The comment at the top of the section explains the general idea: the
+instrumentation section translates *kernel events* into the *model's
+event*.
+
+Tracing callback functions
+--------------------------
+
+The first three functions are the starting point of the callback *handler
+functions* for each of the three events from the wip model. The developer
+does not necessarily need to use them: they are just starting points.
+
+Using the example of::
+
+ void handle_preempt_disable(void *data, /* XXX: fill header */)
+ {
+ da_handle_event_wip(preempt_disable_wip);
+ }
+
+The preempt_disable event from the model connects directly to the
+preemptirq:preempt_disable. The preemptirq:preempt_disable event
+has the following signature, from include/trace/events/preemptirq.h::
+
+ TP_PROTO(unsigned long ip, unsigned long parent_ip)
+
+Hence, the handle_preempt_disable() function will look like::
+
+ void handle_preempt_disable(void *data, unsigned long ip, unsigned long parent_ip)
+
+In this case, the kernel event translates one to one with the automata
+event, and indeed, no other change is required for this function.
+
+The next handler function, handle_preempt_enable() has the same argument
+list from the handle_preempt_disable(). The difference is that the
+preempt_enable event will be used to synchronize the system to the model.
+
+Initially, the *model* is placed in the initial state. However, the *system*
+might or might not be in the initial state. The monitor cannot start
+processing events until it knows that the system has reached the initial state.
+Otherwise, the monitor and the system could be out-of-sync.
+
+Looking at the automata definition, it is possible to see that the system
+and the model are expected to return to the initial state after the
+preempt_enable execution. Hence, it can be used to synchronize the
+system and the model at the initialization of the monitoring section.
+
+The start is informed via a special handle function, the
+"da_handle_start_event_$(MONITOR_NAME)(event)", in this case::
+
+ da_handle_start_event_wip(preempt_enable_wip);
+
+So, the callback function will look like::
+
+ void handle_preempt_enable(void *data, unsigned long ip, unsigned long parent_ip)
+ {
+ da_handle_start_event_wip(preempt_enable_wip);
+ }
+
+Finally, the "handle_sched_waking()" will look like::
+
+ void handle_sched_waking(void *data, struct task_struct *task)
+ {
+ da_handle_event_wip(sched_waking_wip);
+ }
+
+And the explanation is left for the reader as an exercise.
+
+enable and disable functions
+----------------------------
+
+dot2k automatically creates two special functions::
+
+ enable_$(MONITOR_NAME)()
+ disable_$(MONITOR_NAME)()
+
+These functions are called when the monitor is enabled and disabled,
+respectively.
+
+They should be used to *attach* and *detach* the instrumentation to the running
+system. The developer must add to the relative function all that is needed to
+*attach* and *detach* its monitor to the system.
+
+For the wip case, these functions were named::
+
+ enable_wip()
+ disable_wip()
+
+But no change was required because: by default, these functions *attach* and
+*detach* the tracepoints_to_attach, which was enough for this case.
+
+Instrumentation helpers
+-----------------------
+
+To complete the instrumentation, the *handler functions* need to be attached to a
+kernel event, at the monitoring enable phase.
+
+The RV interface also facilitates this step. For example, the macro "rv_attach_trace_probe()"
+is used to connect the wip model events to the relative kernel event. dot2k automatically
+adds "rv_attach_trace_probe()" function call for each model event in the enable phase, as
+a suggestion.
+
+For example, from the wip sample model::
+
+ static int enable_wip(void)
+ {
+ int retval;
+
+ retval = da_monitor_init_wip();
+ if (retval)
+ return retval;
+
+ rv_attach_trace_probe("wip", /* XXX: tracepoint */, handle_preempt_enable);
+ rv_attach_trace_probe("wip", /* XXX: tracepoint */, handle_sched_waking);
+ rv_attach_trace_probe("wip", /* XXX: tracepoint */, handle_preempt_disable);
+
+ return 0;
+ }
+
+The probes then need to be detached at the disable phase.
+
+[1] The wip model is presented in::
+
+ Documentation/trace/rv/deterministic_automata.rst
+
+The wip monitor is presented in::
+
+ Documentation/trace/rv/da_monitor_synthesis.rst
diff --git a/Documentation/trace/rv/da_monitor_synthesis.rst b/Documentation/trace/rv/da_monitor_synthesis.rst
new file mode 100644
index 000000000000..0dbdcd1e62b9
--- /dev/null
+++ b/Documentation/trace/rv/da_monitor_synthesis.rst
@@ -0,0 +1,147 @@
+Deterministic Automata Monitor Synthesis
+========================================
+
+The starting point for the application of runtime verification (RV) technics
+is the *specification* or *modeling* of the desired (or undesired) behavior
+of the system under scrutiny.
+
+The formal representation needs to be then *synthesized* into a *monitor*
+that can then be used in the analysis of the trace of the system. The
+*monitor* connects to the system via an *instrumentation* that converts
+the events from the *system* to the events of the *specification*.
+
+
+In Linux terms, the runtime verification monitors are encapsulated inside
+the *RV monitor* abstraction. The RV monitor includes a set of instances
+of the monitor (per-cpu monitor, per-task monitor, and so on), the helper
+functions that glue the monitor to the system reference model, and the
+trace output as a reaction to event parsing and exceptions, as depicted
+below::
+
+ Linux +----- RV Monitor ----------------------------------+ Formal
+ Realm | | Realm
+ +-------------------+ +----------------+ +-----------------+
+ | Linux kernel | | Monitor | | Reference |
+ | Tracing | -> | Instance(s) | <- | Model |
+ | (instrumentation) | | (verification) | | (specification) |
+ +-------------------+ +----------------+ +-----------------+
+ | | |
+ | V |
+ | +----------+ |
+ | | Reaction | |
+ | +--+--+--+-+ |
+ | | | | |
+ | | | +-> trace output ? |
+ +------------------------|--|----------------------+
+ | +----> panic ?
+ +-------> <user-specified>
+
+DA monitor synthesis
+--------------------
+
+The synthesis of automata-based models into the Linux *RV monitor* abstraction
+is automated by the dot2k tool and the rv/da_monitor.h header file that
+contains a set of macros that automatically generate the monitor's code.
+
+dot2k
+-----
+
+The dot2k utility leverages dot2c by converting an automaton model in
+the DOT format into the C representation [1] and creating the skeleton of
+a kernel monitor in C.
+
+For example, it is possible to transform the wip.dot model present in
+[1] into a per-cpu monitor with the following command::
+
+ $ dot2k -d wip.dot -t per_cpu
+
+This will create a directory named wip/ with the following files:
+
+- wip.h: the wip model in C
+- wip.c: the RV monitor
+
+The wip.c file contains the monitor declaration and the starting point for
+the system instrumentation.
+
+Monitor macros
+--------------
+
+The rv/da_monitor.h enables automatic code generation for the *Monitor
+Instance(s)* using C macros.
+
+The benefits of the usage of macro for monitor synthesis are 3-fold as it:
+
+- Reduces the code duplication;
+- Facilitates the bug fix/improvement;
+- Avoids the case of developers changing the core of the monitor code
+ to manipulate the model in a (let's say) non-standard way.
+
+This initial implementation presents three different types of monitor instances:
+
+- ``#define DECLARE_DA_MON_GLOBAL(name, type)``
+- ``#define DECLARE_DA_MON_PER_CPU(name, type)``
+- ``#define DECLARE_DA_MON_PER_TASK(name, type)``
+
+The first declares the functions for a global deterministic automata monitor,
+the second for monitors with per-cpu instances, and the third with per-task
+instances.
+
+In all cases, the 'name' argument is a string that identifies the monitor, and
+the 'type' argument is the data type used by dot2k on the representation of
+the model in C.
+
+For example, the wip model with two states and three events can be
+stored in an 'unsigned char' type. Considering that the preemption control
+is a per-cpu behavior, the monitor declaration in the 'wip.c' file is::
+
+ DECLARE_DA_MON_PER_CPU(wip, unsigned char);
+
+The monitor is executed by sending events to be processed via the functions
+presented below::
+
+ da_handle_event_$(MONITOR_NAME)($(event from event enum));
+ da_handle_start_event_$(MONITOR_NAME)($(event from event enum));
+ da_handle_start_run_event_$(MONITOR_NAME)($(event from event enum));
+
+The function ``da_handle_event_$(MONITOR_NAME)()`` is the regular case where
+the event will be processed if the monitor is processing events.
+
+When a monitor is enabled, it is placed in the initial state of the automata.
+However, the monitor does not know if the system is in the *initial state*.
+
+The ``da_handle_start_event_$(MONITOR_NAME)()`` function is used to notify the
+monitor that the system is returning to the initial state, so the monitor can
+start monitoring the next event.
+
+The ``da_handle_start_run_event_$(MONITOR_NAME)()`` function is used to notify
+the monitor that the system is known to be in the initial state, so the
+monitor can start monitoring and monitor the current event.
+
+Using the wip model as example, the events "preempt_disable" and
+"sched_waking" should be sent to monitor, respectively, via [2]::
+
+ da_handle_event_wip(preempt_disable_wip);
+ da_handle_event_wip(sched_waking_wip);
+
+While the event "preempt_enabled" will use::
+
+ da_handle_start_event_wip(preempt_enable_wip);
+
+To notify the monitor that the system will be returning to the initial state,
+so the system and the monitor should be in sync.
+
+Final remarks
+-------------
+
+With the monitor synthesis in place using the rv/da_monitor.h and
+dot2k, the developer's work should be limited to the instrumentation
+of the system, increasing the confidence in the overall approach.
+
+[1] For details about deterministic automata format and the translation
+from one representation to another, see::
+
+ Documentation/trace/rv/deterministic_automata.rst
+
+[2] dot2k appends the monitor's name suffix to the events enums to
+avoid conflicting variables when exporting the global vmlinux.h
+use by BPF programs.
diff --git a/Documentation/trace/rv/deterministic_automata.rst b/Documentation/trace/rv/deterministic_automata.rst
new file mode 100644
index 000000000000..d0638f95a455
--- /dev/null
+++ b/Documentation/trace/rv/deterministic_automata.rst
@@ -0,0 +1,184 @@
+Deterministic Automata
+======================
+
+Formally, a deterministic automaton, denoted by G, is defined as a quintuple:
+
+ *G* = { *X*, *E*, *f*, x\ :subscript:`0`, X\ :subscript:`m` }
+
+where:
+
+- *X* is the set of states;
+- *E* is the finite set of events;
+- x\ :subscript:`0` is the initial state;
+- X\ :subscript:`m` (subset of *X*) is the set of marked (or final) states.
+- *f* : *X* x *E* -> *X* $ is the transition function. It defines the state
+ transition in the occurrence of an event from *E* in the state *X*. In the
+ special case of deterministic automata, the occurrence of the event in *E*
+ in a state in *X* has a deterministic next state from *X*.
+
+For example, a given automaton named 'wip' (wakeup in preemptive) can
+be defined as:
+
+- *X* = { ``preemptive``, ``non_preemptive``}
+- *E* = { ``preempt_enable``, ``preempt_disable``, ``sched_waking``}
+- x\ :subscript:`0` = ``preemptive``
+- X\ :subscript:`m` = {``preemptive``}
+- *f* =
+ - *f*\ (``preemptive``, ``preempt_disable``) = ``non_preemptive``
+ - *f*\ (``non_preemptive``, ``sched_waking``) = ``non_preemptive``
+ - *f*\ (``non_preemptive``, ``preempt_enable``) = ``preemptive``
+
+One of the benefits of this formal definition is that it can be presented
+in multiple formats. For example, using a *graphical representation*, using
+vertices (nodes) and edges, which is very intuitive for *operating system*
+practitioners, without any loss.
+
+The previous 'wip' automaton can also be represented as::
+
+ preempt_enable
+ +---------------------------------+
+ v |
+ #============# preempt_disable +------------------+
+ --> H preemptive H -----------------> | non_preemptive |
+ #============# +------------------+
+ ^ |
+ | sched_waking |
+ +--------------+
+
+Deterministic Automaton in C
+----------------------------
+
+In the paper "Efficient formal verification for the Linux kernel",
+the authors present a simple way to represent an automaton in C that can
+be used as regular code in the Linux kernel.
+
+For example, the 'wip' automata can be presented as (augmented with comments)::
+
+ /* enum representation of X (set of states) to be used as index */
+ enum states {
+ preemptive = 0,
+ non_preemptive,
+ state_max
+ };
+
+ #define INVALID_STATE state_max
+
+ /* enum representation of E (set of events) to be used as index */
+ enum events {
+ preempt_disable = 0,
+ preempt_enable,
+ sched_waking,
+ event_max
+ };
+
+ struct automaton {
+ char *state_names[state_max]; // X: the set of states
+ char *event_names[event_max]; // E: the finite set of events
+ unsigned char function[state_max][event_max]; // f: transition function
+ unsigned char initial_state; // x_0: the initial state
+ bool final_states[state_max]; // X_m: the set of marked states
+ };
+
+ struct automaton aut = {
+ .state_names = {
+ "preemptive",
+ "non_preemptive"
+ },
+ .event_names = {
+ "preempt_disable",
+ "preempt_enable",
+ "sched_waking"
+ },
+ .function = {
+ { non_preemptive, INVALID_STATE, INVALID_STATE },
+ { INVALID_STATE, preemptive, non_preemptive },
+ },
+ .initial_state = preemptive,
+ .final_states = { 1, 0 },
+ };
+
+The *transition function* is represented as a matrix of states (lines) and
+events (columns), and so the function *f* : *X* x *E* -> *X* can be solved
+in O(1). For example::
+
+ next_state = automaton_wip.function[curr_state][event];
+
+Graphviz .dot format
+--------------------
+
+The Graphviz open-source tool can produce the graphical representation
+of an automaton using the (textual) DOT language as the source code.
+The DOT format is widely used and can be converted to many other formats.
+
+For example, this is the 'wip' model in DOT::
+
+ digraph state_automaton {
+ {node [shape = circle] "non_preemptive"};
+ {node [shape = plaintext, style=invis, label=""] "__init_preemptive"};
+ {node [shape = doublecircle] "preemptive"};
+ {node [shape = circle] "preemptive"};
+ "__init_preemptive" -> "preemptive";
+ "non_preemptive" [label = "non_preemptive"];
+ "non_preemptive" -> "non_preemptive" [ label = "sched_waking" ];
+ "non_preemptive" -> "preemptive" [ label = "preempt_enable" ];
+ "preemptive" [label = "preemptive"];
+ "preemptive" -> "non_preemptive" [ label = "preempt_disable" ];
+ { rank = min ;
+ "__init_preemptive";
+ "preemptive";
+ }
+ }
+
+This DOT format can be transformed into a bitmap or vectorial image
+using the dot utility, or into an ASCII art using graph-easy. For
+instance::
+
+ $ dot -Tsvg -o wip.svg wip.dot
+ $ graph-easy wip.dot > wip.txt
+
+dot2c
+-----
+
+dot2c is a utility that can parse a .dot file containing an automaton as
+in the example above and automatically convert it to the C representation
+presented in [3].
+
+For example, having the previous 'wip' model into a file named 'wip.dot',
+the following command will transform the .dot file into the C
+representation (previously shown) in the 'wip.h' file::
+
+ $ dot2c wip.dot > wip.h
+
+The 'wip.h' content is the code sample in section 'Deterministic Automaton
+in C'.
+
+Remarks
+-------
+
+The automata formalism allows modeling discrete event systems (DES) in
+multiple formats, suitable for different applications/users.
+
+For example, the formal description using set theory is better suitable
+for automata operations, while the graphical format for human interpretation;
+and computer languages for machine execution.
+
+References
+----------
+
+Many textbooks cover automata formalism. For a brief introduction see::
+
+ O'Regan, Gerard. Concise guide to software engineering. Springer,
+ Cham, 2017.
+
+For a detailed description, including operations, and application on Discrete
+Event Systems (DES), see::
+
+ Cassandras, Christos G., and Stephane Lafortune, eds. Introduction to discrete
+ event systems. Boston, MA: Springer US, 2008.
+
+For the C representation in kernel, see::
+
+ De Oliveira, Daniel Bristot; Cucinotta, Tommaso; De Oliveira, Romulo
+ Silva. Efficient formal verification for the Linux kernel. In:
+ International Conference on Software Engineering and Formal Methods.
+ Springer, Cham, 2019. p. 315-332.
diff --git a/Documentation/trace/rv/index.rst b/Documentation/trace/rv/index.rst
new file mode 100644
index 000000000000..15fa966102c0
--- /dev/null
+++ b/Documentation/trace/rv/index.rst
@@ -0,0 +1,14 @@
+====================
+Runtime Verification
+====================
+
+.. toctree::
+ :maxdepth: 2
+ :glob:
+
+ runtime-verification.rst
+ deterministic_automata.rst
+ da_monitor_synthesis.rst
+ da_monitor_instrumentation.rst
+ monitor_wip.rst
+ monitor_wwnr.rst
diff --git a/Documentation/trace/rv/monitor_wip.rst b/Documentation/trace/rv/monitor_wip.rst
new file mode 100644
index 000000000000..a95763438c48
--- /dev/null
+++ b/Documentation/trace/rv/monitor_wip.rst
@@ -0,0 +1,55 @@
+Monitor wip
+===========
+
+- Name: wip - wakeup in preemptive
+- Type: per-cpu deterministic automaton
+- Author: Daniel Bristot de Oliveira <bristot@kernel.org>
+
+Description
+-----------
+
+The wakeup in preemptive (wip) monitor is a sample per-cpu monitor
+that verifies if the wakeup events always take place with
+preemption disabled::
+
+ |
+ |
+ v
+ #==================#
+ H preemptive H <+
+ #==================# |
+ | |
+ | preempt_disable | preempt_enable
+ v |
+ sched_waking +------------------+ |
+ +--------------- | | |
+ | | non_preemptive | |
+ +--------------> | | -+
+ +------------------+
+
+The wakeup event always takes place with preemption disabled because
+of the scheduler synchronization. However, because the preempt_count
+and its trace event are not atomic with regard to interrupts, some
+inconsistencies might happen. For example::
+
+ preempt_disable() {
+ __preempt_count_add(1)
+ -------> smp_apic_timer_interrupt() {
+ preempt_disable()
+ do not trace (preempt count >= 1)
+
+ wake up a thread
+
+ preempt_enable()
+ do not trace (preempt count >= 1)
+ }
+ <------
+ trace_preempt_disable();
+ }
+
+This problem was reported and discussed here:
+ https://lore.kernel.org/r/cover.1559051152.git.bristot@redhat.com/
+
+Specification
+-------------
+Grapviz Dot file in tools/verification/models/wip.dot
diff --git a/Documentation/trace/rv/monitor_wwnr.rst b/Documentation/trace/rv/monitor_wwnr.rst
new file mode 100644
index 000000000000..80f1777b85aa
--- /dev/null
+++ b/Documentation/trace/rv/monitor_wwnr.rst
@@ -0,0 +1,45 @@
+Monitor wwnr
+============
+
+- Name: wwrn - wakeup while not running
+- Type: per-task deterministic automaton
+- Author: Daniel Bristot de Oliveira <bristot@kernel.org>
+
+Description
+-----------
+
+This is a per-task sample monitor, with the following
+definition::
+
+ |
+ |
+ v
+ wakeup +-------------+
+ +--------- | |
+ | | not_running |
+ +--------> | | <+
+ +-------------+ |
+ | |
+ | switch_in | switch_out
+ v |
+ +-------------+ |
+ | running | -+
+ +-------------+
+
+This model is borken, the reason is that a task can be running
+in the processor without being set as RUNNABLE. Think about a
+task about to sleep::
+
+ 1: set_current_state(TASK_UNINTERRUPTIBLE);
+ 2: schedule();
+
+And then imagine an IRQ happening in between the lines one and two,
+waking the task up. BOOM, the wakeup will happen while the task is
+running.
+
+- Why do we need this model, so?
+- To test the reactors.
+
+Specification
+-------------
+Grapviz Dot file in tools/verification/models/wwnr.dot
diff --git a/Documentation/trace/rv/runtime-verification.rst b/Documentation/trace/rv/runtime-verification.rst
new file mode 100644
index 000000000000..c46b6149470e
--- /dev/null
+++ b/Documentation/trace/rv/runtime-verification.rst
@@ -0,0 +1,231 @@
+====================
+Runtime Verification
+====================
+
+Runtime Verification (RV) is a lightweight (yet rigorous) method that
+complements classical exhaustive verification techniques (such as *model
+checking* and *theorem proving*) with a more practical approach for complex
+systems.
+
+Instead of relying on a fine-grained model of a system (e.g., a
+re-implementation a instruction level), RV works by analyzing the trace of the
+system's actual execution, comparing it against a formal specification of
+the system behavior.
+
+The main advantage is that RV can give precise information on the runtime
+behavior of the monitored system, without the pitfalls of developing models
+that require a re-implementation of the entire system in a modeling language.
+Moreover, given an efficient monitoring method, it is possible execute an
+*online* verification of a system, enabling the *reaction* for unexpected
+events, avoiding, for example, the propagation of a failure on safety-critical
+systems.
+
+Runtime Monitors and Reactors
+=============================
+
+A monitor is the central part of the runtime verification of a system. The
+monitor stands in between the formal specification of the desired (or
+undesired) behavior, and the trace of the actual system.
+
+In Linux terms, the runtime verification monitors are encapsulated inside the
+*RV monitor* abstraction. A *RV monitor* includes a reference model of the
+system, a set of instances of the monitor (per-cpu monitor, per-task monitor,
+and so on), and the helper functions that glue the monitor to the system via
+trace, as depicted bellow::
+
+ Linux +---- RV Monitor ----------------------------------+ Formal
+ Realm | | Realm
+ +-------------------+ +----------------+ +-----------------+
+ | Linux kernel | | Monitor | | Reference |
+ | Tracing | -> | Instance(s) | <- | Model |
+ | (instrumentation) | | (verification) | | (specification) |
+ +-------------------+ +----------------+ +-----------------+
+ | | |
+ | V |
+ | +----------+ |
+ | | Reaction | |
+ | +--+--+--+-+ |
+ | | | | |
+ | | | +-> trace output ? |
+ +------------------------|--|----------------------+
+ | +----> panic ?
+ +-------> <user-specified>
+
+In addition to the verification and monitoring of the system, a monitor can
+react to an unexpected event. The forms of reaction can vary from logging the
+event occurrence to the enforcement of the correct behavior to the extreme
+action of taking a system down to avoid the propagation of a failure.
+
+In Linux terms, a *reactor* is an reaction method available for *RV monitors*.
+By default, all monitors should provide a trace output of their actions,
+which is already a reaction. In addition, other reactions will be available
+so the user can enable them as needed.
+
+For further information about the principles of runtime verification and
+RV applied to Linux:
+
+ Bartocci, Ezio, et al. *Introduction to runtime verification.* In: Lectures on
+ Runtime Verification. Springer, Cham, 2018. p. 1-33.
+
+ Falcone, Ylies, et al. *A taxonomy for classifying runtime verification tools.*
+ In: International Conference on Runtime Verification. Springer, Cham, 2018. p.
+ 241-262.
+
+ De Oliveira, Daniel Bristot. *Automata-based formal analysis and
+ verification of the real-time Linux kernel.* Ph.D. Thesis, 2020.
+
+Online RV monitors
+==================
+
+Monitors can be classified as *offline* and *online* monitors. *Offline*
+monitor process the traces generated by a system after the events, generally by
+reading the trace execution from a permanent storage system. *Online* monitors
+process the trace during the execution of the system. Online monitors are said
+to be *synchronous* if the processing of an event is attached to the system
+execution, blocking the system during the event monitoring. On the other hand,
+an *asynchronous* monitor has its execution detached from the system. Each type
+of monitor has a set of advantages. For example, *offline* monitors can be
+executed on different machines but require operations to save the log to a
+file. In contrast, *synchronous online* method can react at the exact moment
+a violation occurs.
+
+Another important aspect regarding monitors is the overhead associated with the
+event analysis. If the system generates events at a frequency higher than the
+monitor's ability to process them in the same system, only the *offline*
+methods are viable. On the other hand, if the tracing of the events incurs
+on higher overhead than the simple handling of an event by a monitor, then a
+*synchronous online* monitors will incur on lower overhead.
+
+Indeed, the research presented in:
+
+ De Oliveira, Daniel Bristot; Cucinotta, Tommaso; De Oliveira, Romulo Silva.
+ *Efficient formal verification for the Linux kernel.* In: International
+ Conference on Software Engineering and Formal Methods. Springer, Cham, 2019.
+ p. 315-332.
+
+Shows that for Deterministic Automata models, the synchronous processing of
+events in-kernel causes lower overhead than saving the same events to the trace
+buffer, not even considering collecting the trace for user-space analysis.
+This motivated the development of an in-kernel interface for online monitors.
+
+For further information about modeling of Linux kernel behavior using automata,
+see:
+
+ De Oliveira, Daniel B.; De Oliveira, Romulo S.; Cucinotta, Tommaso. *A thread
+ synchronization model for the PREEMPT_RT Linux kernel.* Journal of Systems
+ Architecture, 2020, 107: 101729.
+
+The user interface
+==================
+
+The user interface resembles the tracing interface (on purpose). It is
+currently at "/sys/kernel/tracing/rv/".
+
+The following files/folders are currently available:
+
+**available_monitors**
+
+- Reading list the available monitors, one per line
+
+For example::
+
+ # cat available_monitors
+ wip
+ wwnr
+
+**available_reactors**
+
+- Reading shows the available reactors, one per line.
+
+For example::
+
+ # cat available_reactors
+ nop
+ panic
+ printk
+
+**enabled_monitors**:
+
+- Reading lists the enabled monitors, one per line
+- Writing to it enables a given monitor
+- Writing a monitor name with a '!' prefix disables it
+- Truncating the file disables all enabled monitors
+
+For example::
+
+ # cat enabled_monitors
+ # echo wip > enabled_monitors
+ # echo wwnr >> enabled_monitors
+ # cat enabled_monitors
+ wip
+ wwnr
+ # echo '!wip' >> enabled_monitors
+ # cat enabled_monitors
+ wwnr
+ # echo > enabled_monitors
+ # cat enabled_monitors
+ #
+
+Note that it is possible to enable more than one monitor concurrently.
+
+**monitoring_on**
+
+This is an on/off general switcher for monitoring. It resembles the
+"tracing_on" switcher in the trace interface.
+
+- Writing "0" stops the monitoring
+- Writing "1" continues the monitoring
+- Reading returns the current status of the monitoring
+
+Note that it does not disable enabled monitors but stop the per-entity
+monitors monitoring the events received from the system.
+
+**reacting_on**
+
+- Writing "0" prevents reactions for happening
+- Writing "1" enable reactions
+- Reading returns the current status of the reaction
+
+**monitors/**
+
+Each monitor will have its own directory inside "monitors/". There the
+monitor-specific files will be presented. The "monitors/" directory resembles
+the "events" directory on tracefs.
+
+For example::
+
+ # cd monitors/wip/
+ # ls
+ desc enable
+ # cat desc
+ wakeup in preemptive per-cpu testing monitor.
+ # cat enable
+ 0
+
+**monitors/MONITOR/desc**
+
+- Reading shows a description of the monitor *MONITOR*
+
+**monitors/MONITOR/enable**
+
+- Writing "0" disables the *MONITOR*
+- Writing "1" enables the *MONITOR*
+- Reading return the current status of the *MONITOR*
+
+**monitors/MONITOR/reactors**
+
+- List available reactors, with the select reaction for the given *MONITOR*
+ inside "[]". The default one is the nop (no operation) reactor.
+- Writing the name of a reactor enables it to the given MONITOR.
+
+For example::
+
+ # cat monitors/wip/reactors
+ [nop]
+ panic
+ printk
+ # echo panic > monitors/wip/reactors
+ # cat monitors/wip/reactors
+ nop
+ [panic]
+ printk
diff --git a/Documentation/trace/timerlat-tracer.rst b/Documentation/trace/timerlat-tracer.rst
index d643c95c01eb..db17df312bc8 100644
--- a/Documentation/trace/timerlat-tracer.rst
+++ b/Documentation/trace/timerlat-tracer.rst
@@ -20,7 +20,7 @@ For example::
[root@f32 ~]# cd /sys/kernel/tracing/
[root@f32 tracing]# echo timerlat > current_tracer
-It is possible to follow the trace by reading the trace trace file::
+It is possible to follow the trace by reading the trace file::
[root@f32 tracing]# cat trace
# tracer: timerlat
diff --git a/Documentation/trace/uprobetracer.rst b/Documentation/trace/uprobetracer.rst
index a8e5938f609e..3a1797d707f4 100644
--- a/Documentation/trace/uprobetracer.rst
+++ b/Documentation/trace/uprobetracer.rst
@@ -26,10 +26,10 @@ Synopsis of uprobe_tracer
-------------------------
::
- p[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS] : Set a uprobe
- r[:[GRP/]EVENT] PATH:OFFSET [FETCHARGS] : Set a return uprobe (uretprobe)
- p[:[GRP/]EVENT] PATH:OFFSET%return [FETCHARGS] : Set a return uprobe (uretprobe)
- -:[GRP/]EVENT : Clear uprobe or uretprobe event
+ p[:[GRP/][EVENT]] PATH:OFFSET [FETCHARGS] : Set a uprobe
+ r[:[GRP/][EVENT]] PATH:OFFSET [FETCHARGS] : Set a return uprobe (uretprobe)
+ p[:[GRP/][EVENT]] PATH:OFFSET%return [FETCHARGS] : Set a return uprobe (uretprobe)
+ -:[GRP/][EVENT] : Clear uprobe or uretprobe event
GRP : Group name. If omitted, "uprobes" is the default value.
EVENT : Event name. If omitted, the event name is generated based
diff --git a/Documentation/trace/user_events.rst b/Documentation/trace/user_events.rst
index c180936f49fc..9f181f342a70 100644
--- a/Documentation/trace/user_events.rst
+++ b/Documentation/trace/user_events.rst
@@ -20,14 +20,14 @@ dynamic_events is the same as the ioctl with the u: prefix applied.
Typically programs will register a set of events that they wish to expose to
tools that can read trace_events (such as ftrace and perf). The registration
-process gives back two ints to the program for each event. The first int is the
-status index. This index describes which byte in the
+process gives back two ints to the program for each event. The first int is
+the status bit. This describes which bit in little-endian format in the
/sys/kernel/debug/tracing/user_events_status file represents this event. The
-second int is the write index. This index describes the data when a write() or
+second int is the write index which describes the data when a write() or
writev() is called on the /sys/kernel/debug/tracing/user_events_data file.
-The structures referenced in this document are contained with the
-/include/uap/linux/user_events.h file in the source tree.
+The structures referenced in this document are contained within the
+/include/uapi/linux/user_events.h file in the source tree.
**NOTE:** *Both user_events_status and user_events_data are under the tracefs
filesystem and may be mounted at different paths than above.*
@@ -38,18 +38,18 @@ Registering within a user process is done via ioctl() out to the
/sys/kernel/debug/tracing/user_events_data file. The command to issue is
DIAG_IOCSREG.
-This command takes a struct user_reg as an argument::
+This command takes a packed struct user_reg as an argument::
struct user_reg {
u32 size;
u64 name_args;
- u32 status_index;
+ u32 status_bit;
u32 write_index;
};
The struct user_reg requires two inputs, the first is the size of the structure
to ensure forward and backward compatibility. The second is the command string
-to issue for registering. Upon success two outputs are set, the status index
+to issue for registering. Upon success two outputs are set, the status bit
and the write index.
User based events show up under tracefs like any other event under the
@@ -111,15 +111,56 @@ in realtime. This allows user programs to only incur the cost of the write() or
writev() calls when something is actively attached to the event.
User programs call mmap() on /sys/kernel/debug/tracing/user_events_status to
-check the status for each event that is registered. The byte to check in the
-file is given back after the register ioctl() via user_reg.status_index.
+check the status for each event that is registered. The bit to check in the
+file is given back after the register ioctl() via user_reg.status_bit. The bit
+is always in little-endian format. Programs can check if the bit is set either
+using a byte-wise index with a mask or a long-wise index with a little-endian
+mask.
+
Currently the size of user_events_status is a single page, however, custom
kernel configurations can change this size to allow more user based events. In
all cases the size of the file is a multiple of a page size.
-For example, if the register ioctl() gives back a status_index of 3 you would
-check byte 3 of the returned mmap data to see if anything is attached to that
-event.
+For example, if the register ioctl() gives back a status_bit of 3 you would
+check byte 0 (3 / 8) of the returned mmap data and then AND the result with 8
+(1 << (3 % 8)) to see if anything is attached to that event.
+
+A byte-wise index check is performed as follows::
+
+ int index, mask;
+ char *status_page;
+
+ index = status_bit / 8;
+ mask = 1 << (status_bit % 8);
+
+ ...
+
+ if (status_page[index] & mask) {
+ /* Enabled */
+ }
+
+A long-wise index check is performed as follows::
+
+ #include <asm/bitsperlong.h>
+ #include <endian.h>
+
+ #if __BITS_PER_LONG == 64
+ #define endian_swap(x) htole64(x)
+ #else
+ #define endian_swap(x) htole32(x)
+ #endif
+
+ long index, mask, *status_page;
+
+ index = status_bit / __BITS_PER_LONG;
+ mask = 1L << (status_bit % __BITS_PER_LONG);
+ mask = endian_swap(mask);
+
+ ...
+
+ if (status_page[index] & mask) {
+ /* Enabled */
+ }
Administrators can easily check the status of all registered events by reading
the user_events_status file directly via a terminal. The output is as follows::
@@ -137,7 +178,7 @@ For example, on a system that has a single event the output looks like this::
Active: 1
Busy: 0
- Max: 4096
+ Max: 32768
If a user enables the user event via ftrace, the output would change to this::
@@ -145,21 +186,10 @@ If a user enables the user event via ftrace, the output would change to this::
Active: 1
Busy: 1
- Max: 4096
-
-**NOTE:** *A status index of 0 will never be returned. This allows user
-programs to have an index that can be used on error cases.*
-
-Status Bits
-^^^^^^^^^^^
-The byte being checked will be non-zero if anything is attached. Programs can
-check specific bits in the byte to see what mechanism has been attached.
-
-The following values are defined to aid in checking what has been attached:
-
-**EVENT_STATUS_FTRACE** - Bit set if ftrace has been attached (Bit 0).
+ Max: 32768
-**EVENT_STATUS_PERF** - Bit set if perf has been attached (Bit 1).
+**NOTE:** *A status bit of 0 will never be returned. This allows user programs
+to have a bit that can be used on error cases.*
Writing Data
------------
diff --git a/Documentation/translations/it_IT/devicetree/bindings/submitting-patches.rst b/Documentation/translations/it_IT/devicetree/bindings/submitting-patches.rst
new file mode 100644
index 000000000000..b473cd2190be
--- /dev/null
+++ b/Documentation/translations/it_IT/devicetree/bindings/submitting-patches.rst
@@ -0,0 +1,11 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../../disclaimer-ita.rst
+
+:Original: Documentation/devicetree/bindings/submitting-patches.rst
+
+================================================
+Sottomettere patch per devicetree (DT) *binding*
+================================================
+
+.. note:: to be translated
diff --git a/Documentation/translations/it_IT/doc-guide/kernel-doc.rst b/Documentation/translations/it_IT/doc-guide/kernel-doc.rst
index 009cdac014b6..78082281acf9 100644
--- a/Documentation/translations/it_IT/doc-guide/kernel-doc.rst
+++ b/Documentation/translations/it_IT/doc-guide/kernel-doc.rst
@@ -5,6 +5,7 @@
.. _it_kernel_doc:
+=================================
Scrivere i commenti in kernel-doc
=================================
@@ -469,6 +470,7 @@ Il titolo che segue ``DOC:`` funziona da intestazione all'interno del file
sorgente, ma anche come identificatore per l'estrazione di questi commenti di
documentazione. Quindi, il titolo dev'essere unico all'interno del file.
+=======================================
Includere i commenti di tipo kernel-doc
=======================================
diff --git a/Documentation/translations/it_IT/doc-guide/sphinx.rst b/Documentation/translations/it_IT/doc-guide/sphinx.rst
index 9762452c584c..64528790dc34 100644
--- a/Documentation/translations/it_IT/doc-guide/sphinx.rst
+++ b/Documentation/translations/it_IT/doc-guide/sphinx.rst
@@ -5,8 +5,9 @@
.. _it_sphinxdoc:
-Introduzione
-============
+=============================================
+Usare Sphinx per la documentazione del kernel
+=============================================
Il kernel Linux usa `Sphinx`_ per la generazione della documentazione a partire
dai file `reStructuredText`_ che si trovano nella cartella ``Documentation``.
@@ -158,6 +159,9 @@ Per poter passare ulteriori opzioni a Sphinx potete utilizzare la variabile
make ``SPHINXOPTS``. Per esempio, se volete che Sphinx sia più verboso durante
la generazione potete usare il seguente comando ``make SPHINXOPTS=-v htmldocs``.
+Potete anche personalizzare l'ouptut html passando un livello aggiuntivo
+DOCS_CSS usando la rispettiva variabile d'ambiente ``DOCS_CSS``.
+
Potete eliminare la documentazione generata tramite il comando
``make cleandocs``.
@@ -276,11 +280,11 @@ incrociato quando questa ha una voce nell'indice. Se trovate degli usi di
Tabelle a liste
---------------
-Raccomandiamo l'uso delle tabelle in formato lista (*list table*). Le tabelle
-in formato lista sono liste di liste. In confronto all'ASCII-art potrebbero
-non apparire di facile lettura nei file in formato testo. Il loro vantaggio è
-che sono facili da creare o modificare e che la differenza di una modifica è
-molto più significativa perché limitata alle modifiche del contenuto.
+Il formato ``list-table`` può essere utile per tutte quelle tabelle che non
+possono essere facilmente scritte usando il formato ASCII-art di Sphinx. Però,
+questo genere di tabelle sono illeggibili per chi legge direttamente i file di
+testo. Dunque, questo formato dovrebbe essere evitato senza forti argomenti che
+ne giustifichino l'uso.
La ``flat-table`` è anch'essa una lista di liste simile alle ``list-table``
ma con delle funzionalità aggiuntive:
diff --git a/Documentation/translations/it_IT/kernel-hacking/hacking.rst b/Documentation/translations/it_IT/kernel-hacking/hacking.rst
index d5c521327f6a..560f1d0482d2 100644
--- a/Documentation/translations/it_IT/kernel-hacking/hacking.rst
+++ b/Documentation/translations/it_IT/kernel-hacking/hacking.rst
@@ -129,8 +129,7 @@ eseguiti simultaneamente.
.. warning::
Il nome 'tasklet' è ingannevole: non hanno niente a che fare
- con i 'processi' ('tasks'), e probabilmente hanno più a che vedere
- con qualche pessima vodka che Alexey Kuznetsov si fece a quel tempo.
+ con i 'processi' ('tasks').
Potete determinate se siete in un softirq (o tasklet) utilizzando la
macro :c:func:`in_softirq()` (``include/linux/preempt.h``).
@@ -308,7 +307,7 @@ esse copiano una quantità arbitraria di dati da e verso lo spazio utente.
Al contrario di:c:func:`put_user()` e :c:func:`get_user()`, queste
funzioni ritornano la quantità di dati copiati (0 è comunque un successo).
-[Sì, questa stupida interfaccia mi imbarazza. La battaglia torna in auge anno
+[Sì, questa interfaccia mi imbarazza. La battaglia torna in auge anno
dopo anno. --RR]
Le funzioni potrebbero dormire implicitamente. Queste non dovrebbero mai essere
@@ -679,9 +678,8 @@ tutti sulle spine: questo riflette cambiamenti fondamentati (eg. la funzione
non può più essere chiamata con le funzioni attive, o fa controlli aggiuntivi,
o non fa più controlli che venivano fatti in precedenza). Solitamente a questo
s'accompagna un'adeguata e completa nota sulla lista di discussone
-linux-kernel; cercate negli archivi.
-Solitamente eseguire una semplice sostituzione su tutto un file rendere
-le cose **peggiori**.
+più adatta; cercate negli archivi. Solitamente eseguire una semplice
+sostituzione su tutto un file rendere le cose **peggiori**.
Inizializzazione dei campi d'una struttura
------------------------------------------
@@ -759,14 +757,14 @@ Mettere le vostre cose nel kernel
Al fine d'avere le vostre cose in ordine per l'inclusione ufficiale, o
anche per avere patch pulite, c'è del lavoro amministrativo da fare:
-- Trovare di chi è lo stagno in cui state pisciando. Guardare in cima
+- Trovare chi è responsabile del codice che state modificando. Guardare in cima
ai file sorgenti, all'interno del file ``MAINTAINERS``, ed alla fine
di tutti nel file ``CREDITS``. Dovreste coordinarvi con queste persone
per evitare di duplicare gli sforzi, o provare qualcosa che è già stato
rigettato.
Assicuratevi di mettere il vostro nome ed indirizzo email in cima a
- tutti i file che create o che mangeggiate significativamente. Questo è
+ tutti i file che create o che maneggiate significativamente. Questo è
il primo posto dove le persone guarderanno quando troveranno un baco,
o quando **loro** vorranno fare una modifica.
@@ -787,16 +785,15 @@ anche per avere patch pulite, c'è del lavoro amministrativo da fare:
"obj-$(CONFIG_xxx) += xxx.o". La sintassi è documentata nel file
``Documentation/kbuild/makefiles.rst``.
-- Aggiungete voi stessi in ``CREDITS`` se avete fatto qualcosa di notevole,
- solitamente qualcosa che supera il singolo file (comunque il vostro nome
- dovrebbe essere all'inizio dei file sorgenti). ``MAINTAINERS`` significa
+- Aggiungete voi stessi in ``CREDITS`` se credete di aver fatto qualcosa di
+ notevole, solitamente qualcosa che supera il singolo file (comunque il vostro
+ nome dovrebbe essere all'inizio dei file sorgenti). ``MAINTAINERS`` significa
che volete essere consultati quando vengono fatte delle modifiche ad un
- sottosistema, e quando ci sono dei bachi; questo implica molto di più
- di un semplice impegno su una parte del codice.
+ sottosistema, e quando ci sono dei bachi; questo implica molto di più di un
+ semplice impegno su una parte del codice.
- Infine, non dimenticatevi di leggere
- ``Documentation/process/submitting-patches.rst`` e possibilmente anche
- ``Documentation/process/submitting-drivers.rst``.
+ ``Documentation/process/submitting-patches.rst``.
Trucchetti del kernel
=====================
diff --git a/Documentation/translations/it_IT/kernel-hacking/locking.rst b/Documentation/translations/it_IT/kernel-hacking/locking.rst
index 163f1bd4e857..51af37f2d621 100644
--- a/Documentation/translations/it_IT/kernel-hacking/locking.rst
+++ b/Documentation/translations/it_IT/kernel-hacking/locking.rst
@@ -102,16 +102,11 @@ che non esistano.
Sincronizzazione nel kernel Linux
=================================
-Se posso darvi un suggerimento: non dormite mai con qualcuno più pazzo di
-voi. Ma se dovessi darvi un suggerimento sulla sincronizzazione:
-**mantenetela semplice**.
+Se dovessi darvi un suggerimento sulla sincronizzazione: **mantenetela
+semplice**.
Siate riluttanti nell'introduzione di nuovi *lock*.
-Abbastanza strano, quest'ultimo è l'esatto opposto del mio suggerimento
-su quando **avete** dormito con qualcuno più pazzo di voi. E dovreste
-pensare a prendervi un cane bello grande.
-
I due principali tipi di *lock* nel kernel: spinlock e mutex
------------------------------------------------------------
@@ -316,7 +311,7 @@ Pete Zaitcev ci offre il seguente riassunto:
- Se siete in un contesto utente (una qualsiasi chiamata di sistema)
e volete sincronizzarvi con altri processi, usate i mutex. Potete trattenere
- il mutex e dormire (``copy_from_user*(`` o ``kmalloc(x,GFP_KERNEL)``).
+ il mutex e dormire (``copy_from_user(`` o ``kmalloc(x,GFP_KERNEL)``).
- Altrimenti (== i dati possono essere manipolati da un'interruzione) usate
spin_lock_irqsave() e spin_unlock_irqrestore().
@@ -979,9 +974,6 @@ fallisce nel trovare quello che vuole, quindi rilascia il *lock* di lettura,
trattiene un *lock* di scrittura ed inserisce un oggetto; questo genere di
codice presenta una corsa critica.
-Se non riuscite a capire il perché, per favore state alla larga dal mio
-codice.
-
corsa fra temporizzatori: un passatempo del kernel
--------------------------------------------------
diff --git a/Documentation/translations/it_IT/maintainer/configure-git.rst b/Documentation/translations/it_IT/maintainer/configure-git.rst
new file mode 100644
index 000000000000..8316fa53946f
--- /dev/null
+++ b/Documentation/translations/it_IT/maintainer/configure-git.rst
@@ -0,0 +1,10 @@
+.. include:: ../disclaimer-ita.rst
+
+:Original: Documentation/process/botching-up-ioctls.rst
+
+.. _it_configuregit:
+
+Configurare Git
+===============
+
+.. note:: To be translated
diff --git a/Documentation/translations/it_IT/networking/netdev-FAQ.rst b/Documentation/translations/it_IT/networking/netdev-FAQ.rst
index 7e2456bb7d92..8a1e049585c0 100644
--- a/Documentation/translations/it_IT/networking/netdev-FAQ.rst
+++ b/Documentation/translations/it_IT/networking/netdev-FAQ.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-ita.rst
-:Original: :ref:`Documentation/networking/netdev-FAQ.rst <netdev-FAQ>`
+:Original: :ref:`Documentation/process/maintainer-netdev.rst <netdev-FAQ>`
.. _it_netdev-FAQ:
diff --git a/Documentation/translations/it_IT/process/3.Early-stage.rst b/Documentation/translations/it_IT/process/3.Early-stage.rst
index 443ac1e5558f..0809de39108a 100644
--- a/Documentation/translations/it_IT/process/3.Early-stage.rst
+++ b/Documentation/translations/it_IT/process/3.Early-stage.rst
@@ -168,14 +168,15 @@ in questa ricerca:
.../scripts/get_maintainer.pl
-Se questo script viene eseguito con l'opzione "-f" ritornerà il
-manutentore(i) attuale per un dato file o cartella. Se viene passata una
-patch sulla linea di comando, lo script elencherà i manutentori che
-dovrebbero riceverne una copia. Ci sono svariate opzioni che regolano
-quanto a fondo get_maintainer.pl debba cercare i manutentori;
-siate quindi prudenti nell'utilizzare le opzioni più aggressive poiché
-potreste finire per includere sviluppatori che non hanno un vero interesse
-per il codice che state modificando.
+Se questo script viene eseguito con l'opzione "-f" ritornerà il manutentore(i)
+attuale per un dato file o cartella. Se viene passata una patch sulla linea di
+comando, lo script elencherà i manutentori che dovrebbero riceverne una copia.
+Questo è la maniera raccomandata (non quella con "-f") per ottenere la lista di
+persone da aggiungere a Cc per le vostre patch. Ci sono svariate opzioni che
+regolano quanto a fondo get_maintainer.pl debba cercare i manutentori; siate
+quindi prudenti nell'utilizzare le opzioni più aggressive poiché potreste finire
+per includere sviluppatori che non hanno un vero interesse per il codice che
+state modificando.
Se tutto ciò dovesse fallire, parlare con Andrew Morton potrebbe essere
un modo efficace per capire chi è il manutentore di un dato pezzo di codice.
diff --git a/Documentation/translations/it_IT/process/5.Posting.rst b/Documentation/translations/it_IT/process/5.Posting.rst
index 1476d51eb5e5..cf92a16ed7e5 100644
--- a/Documentation/translations/it_IT/process/5.Posting.rst
+++ b/Documentation/translations/it_IT/process/5.Posting.rst
@@ -16,9 +16,8 @@ e di procedure per la pubblicazione delle patch; seguirle renderà la vita
più facile a tutti quanti. Questo documento cercherà di coprire questi
argomenti con un ragionevole livello di dettaglio; più informazioni possono
essere trovare nella cartella 'Documentation', nei file
-:ref:`translations/it_IT/process/submitting-patches.rst <it_submittingpatches>`,
-:ref:`translations/it_IT/process/submitting-drivers.rst <it_submittingdrivers>`, e
-:ref:`translations/it_IT/process/submit-checklist.rst <it_submitchecklist>`.
+:ref:`translations/it_IT/process/submitting-patches.rst <it_submittingpatches>`
+e :ref:`translations/it_IT/process/submit-checklist.rst <it_submitchecklist>`.
Quando pubblicarle
@@ -214,13 +213,28 @@ irrilevanti (quelli generati dal processo di generazione, per esempio, o i file
di backup del vostro editor). Il file "dontdiff" nella cartella Documentation
potrà esservi d'aiuto su questo punto; passatelo a diff con l'opzione "-X".
-Le etichette sopra menzionante sono usate per descrivere come i vari
-sviluppatori sono stati associati allo sviluppo di una patch. Sono descritte
-in dettaglio nel documento :ref:`translations/it_IT/process/submitting-patches.rst <it_submittingpatches>`;
-quello che segue è un breve riassunto. Ognuna di queste righe ha il seguente
-formato:
+Le etichette sopracitate danno un'idea di come una patch prende vita e sono
+descritte nel dettaglio nel documento
+:ref:`Documentation/translations/it_IT/process/submitting-patches.rst <it_submittingpatches>`.
+Qui di seguito un breve riassunto.
-::
+Un'etichetta ci può dire quale commit ha introdotto il problema che viene corretto nella patch::
+
+ Fixes: 1f2e3d4c5b6a ("The first line of the commit specified by the first 12 characters of its SHA-1 ID")
+
+Un'altra etichetta viene usata per fornire collegamenti a pagine web contenenti
+maggiori informazioni, per esempio un rapporto circa il baco risolto dalla
+patch, oppure un documento con le specifiche implementate dalla patch::
+
+ Link: https://example.com/somewhere.html optional-other-stuff
+
+Alcuni manutentori aggiungono quest'etichetta alla patch per fare riferimento
+alla più recente discussione pubblica. A volte questo è fatto automaticamente da
+alcuni strumenti come b4 or un *hook* git come quello descritto qui
+'Documentation/translations/it_IT/maintainer/configure-git.rst'
+
+Un terzo tipo di etichetta viene usato per indicare chi ha contribuito allo
+sviluppo della patch. Tutte queste etichette seguono il formato::
tag: Full Name <email address> optional-other-stuff
diff --git a/Documentation/translations/it_IT/process/8.Conclusion.rst b/Documentation/translations/it_IT/process/8.Conclusion.rst
index 039bfc5a4108..32659ff467c0 100644
--- a/Documentation/translations/it_IT/process/8.Conclusion.rst
+++ b/Documentation/translations/it_IT/process/8.Conclusion.rst
@@ -13,9 +13,8 @@ e argomenti correlati. Primo tra questi sarà sempre la cartella Documentation
che si trova nei sorgenti kernel.
Il file :ref:`process/howto.rst <it_process_howto>` è un punto di partenza
-importante; :ref:`process/submitting-patches.rst <it_submittingpatches>` e
-:ref:`process/submitting-drivers.rst <it_submittingdrivers>` sono
-anch'essi qualcosa che tutti gli sviluppatori del kernel dovrebbero leggere.
+importante; :ref:`process/submitting-patches.rst <it_submittingpatches>` è
+anch'esso qualcosa che tutti gli sviluppatori del kernel dovrebbero leggere.
Molte API interne al kernel sono documentate utilizzando il meccanismo
kerneldoc; "make htmldocs" o "make pdfdocs" possono essere usati per generare
quei documenti in HTML o PDF (sebbene le versioni di TeX di alcune
diff --git a/Documentation/translations/it_IT/process/changes.rst b/Documentation/translations/it_IT/process/changes.rst
index dc7193377b7f..10e0ef9c34b7 100644
--- a/Documentation/translations/it_IT/process/changes.rst
+++ b/Documentation/translations/it_IT/process/changes.rst
@@ -11,8 +11,8 @@ Requisiti minimi per compilare il kernel
Introduzione
============
-Questo documento fornisce una lista dei software necessari per eseguire i
-kernel 4.x.
+Questo documento fornisce una lista dei software necessari per eseguire questa
+versione del kernel.
Questo documento è basato sul file "Changes" del kernel 2.0.x e quindi le
persone che lo scrissero meritano credito (Jared Mauch, Axel Boldt,
@@ -32,12 +32,13 @@ PC Card, per esempio, probabilmente non dovreste preoccuparvi di pcmciautils.
====================== ================= ========================================
Programma Versione minima Comando per verificare la versione
====================== ================= ========================================
-GNU C 4.9 gcc --version
-Clang/LLVM (optional) 10.0.1 clang --version
+GNU C 5.1 gcc --version
+Clang/LLVM (optional) 11.0.0 clang --version
GNU make 3.81 make --version
binutils 2.23 ld -v
flex 2.5.35 flex --version
bison 2.0 bison --version
+pahole 1.16 pahole --version
util-linux 2.10o fdformat --version
kmod 13 depmod -V
e2fsprogs 1.41.4 e2fsck -V
@@ -58,6 +59,7 @@ iptables 1.4.2 iptables -V
openssl & libcrypto 1.0.0 openssl version
bc 1.06.95 bc --version
Sphinx\ [#f1]_ 1.7 sphinx-build --version
+cpio any cpio --version
====================== ================= ========================================
.. [#f1] Sphinx è necessario solo per produrre la documentazione del Kernel
@@ -111,6 +113,16 @@ Bison
Dalla versione 4.16, il sistema di compilazione, durante l'esecuzione, genera
un parsificatore. Questo richiede bison 2.0 o successivo.
+pahole
+------
+
+Dalla versione 5.2, quando viene impostato CONFIG_DEBUG_INFO_BTF, il sistema di
+compilazione genera BTF (BPF Type Format) a partire da DWARF per vmlinux. Più
+tardi anche per i moduli. Questo richiede pahole v1.16 o successivo.
+
+A seconda della distribuzione, lo si può trovare nei pacchetti 'dwarves' o
+'pahole'. Oppure lo si può trovare qui: https://fedorapeople.org/~acme/dwarves/.
+
Perl
----
@@ -455,6 +467,11 @@ mcelog
- <http://www.mcelog.org/>
+cpio
+----
+
+- <https://www.gnu.org/software/cpio/>
+
Rete
****
diff --git a/Documentation/translations/it_IT/process/coding-style.rst b/Documentation/translations/it_IT/process/coding-style.rst
index ecc74ba50d3e..a393ee4182af 100644
--- a/Documentation/translations/it_IT/process/coding-style.rst
+++ b/Documentation/translations/it_IT/process/coding-style.rst
@@ -466,14 +466,52 @@ la riga della parentesi graffa di chiusura. Ad esempio:
}
EXPORT_SYMBOL(system_is_up);
+6.1) Prototipi di funzione
+**************************
+
Nei prototipi di funzione, includete i nomi dei parametri e i loro tipi.
Nonostante questo non sia richiesto dal linguaggio C, in Linux viene preferito
perché è un modo semplice per aggiungere informazioni importanti per il
lettore.
-Non usate la parola chiave ``extern`` coi prototipi di funzione perché
+Non usate la parola chiave ``extern`` con le dichiarazioni di funzione perché
rende le righe più lunghe e non è strettamente necessario.
+Quando scrivete i prototipi di funzione mantenete `l'ordine degli elementi <https://lore.kernel.org/mm-commits/CAHk-=wiOCLRny5aifWNhr621kYrJwhfURsa0vFPeUEm8mF0ufg@mail.gmail.com/>`_.
+
+Prendiamo questa dichiarazione di funzione come esempio::
+
+ __init void * __must_check action(enum magic value, size_t size, u8 count,
+ char *fmt, ...) __printf(4, 5) __malloc;
+
+L'ordine suggerito per gli elementi di un prototipo di funzione è il seguente:
+
+- classe d'archiviazione (in questo caso ``static __always_inline``. Da notare
+ che ``__always_inline`` è tecnicamente un attributo ma che viene trattato come
+ ``inline``)
+- attributi della classe di archiviazione (in questo caso ``__init``, in altre
+ parole la sezione, ma anche cose tipo ``__cold``)
+- il tipo di ritorno (in questo caso, ``void *``)
+- attributi per il valore di ritorno (in questo caso, ``__must_check``)
+- il nome della funzione (in questo caso, ``action``)
+- i parametri della funzione(in questo caso,
+ ``(enum magic value, size_t size, u8 count, char *fmt, ...)``,
+ da notare che va messo anche il nome del parametro)
+- attributi dei parametri (in questo caso, ``__printf(4, 5)``)
+- attributi per il comportamento della funzione (in questo caso, ``__malloc_``)
+
+Notate che per la **definizione** di una funzione (il altre parole il corpo
+della funzione), il compilatore non permette di usare gli attributi per i
+parametri dopo i parametri. In questi casi, devono essere messi dopo gli
+attributi della classe d'archiviazione (notate che la posizione di
+``__printf(4,5)`` cambia rispetto alla **dichiarazione**)::
+
+ static __always_inline __init __printf(4, 5) void * __must_check action(enum magic value,
+ size_t size, u8 count, char *fmt, ...) __malloc
+ {
+ ...
+ }*)**``)**``)``)``*)``)``)``)``*``)``)``)*)
+
7) Centralizzare il ritorno delle funzioni
------------------------------------------
@@ -855,7 +893,7 @@ I messaggi del kernel non devono terminare con un punto fermo.
Scrivere i numeri fra parentesi (%d) non migliora alcunché e per questo
dovrebbero essere evitati.
-Ci sono alcune macro per la diagnostica in <linux/device.h> che dovreste
+Ci sono alcune macro per la diagnostica in <linux/dev_printk.h> che dovreste
usare per assicurarvi che i messaggi vengano associati correttamente ai
dispositivi e ai driver, e che siano etichettati correttamente: dev_err(),
dev_warn(), dev_info(), e così via. Per messaggi che non sono associati ad
diff --git a/Documentation/translations/it_IT/process/deprecated.rst b/Documentation/translations/it_IT/process/deprecated.rst
index 987f45ee1804..febf83897783 100644
--- a/Documentation/translations/it_IT/process/deprecated.rst
+++ b/Documentation/translations/it_IT/process/deprecated.rst
@@ -69,8 +69,8 @@ dovrebbero essere fatto negli argomenti di funzioni di allocazione di memoria
piccoli di quelli che il chiamante si aspettava. L'uso di questo modo di
allocare può portare ad un overflow della memoria di heap e altri
malfunzionamenti. (Si fa eccezione per valori numerici per i quali il
-compilatore può generare avvisi circa un potenziale overflow. Tuttavia usare
-i valori numerici come suggerito di seguito è innocuo).
+compilatore può generare avvisi circa un potenziale overflow. Tuttavia, anche in
+questi casi è preferibile riscrivere il codice come suggerito di seguito).
Per esempio, non usate ``count * size`` come argomento::
@@ -80,6 +80,9 @@ Al suo posto, si dovrebbe usare l'allocatore a due argomenti::
foo = kmalloc_array(count, size, GFP_KERNEL);
+Nello specifico, kmalloc() può essere sostituta da kmalloc_array(), e kzalloc()
+da kcalloc().
+
Se questo tipo di allocatore non è disponibile, allora dovrebbero essere usate
le funzioni del tipo *saturate-on-overflow*::
@@ -100,9 +103,20 @@ Invece, usate la seguente funzione::
invitati a riorganizzare il vostro codice usando il
`flexible array member <#zero-length-and-one-element-arrays>`_.
-Per maggiori dettagli fate riferimento a array_size(),
-array3_size(), e struct_size(), così come la famiglia di
-funzioni check_add_overflow() e check_mul_overflow().
+Per altri calcoli, usate le funzioni size_mul(), size_add(), e size_sub(). Per
+esempio, al posto di::
+
+ foo = krealloc(current_size + chunk_size * (count - 3), GFP_KERNEL);
+
+dovreste scrivere:
+
+ foo = krealloc(size_add(current_size,
+ size_mul(chunk_size,
+ size_sub(count, 3))), GFP_KERNEL);
+
+Per maggiori dettagli fate riferimento a array3_size() e flex_array_size(), ma
+anche le funzioni della famiglia check_mul_overflow(), check_add_overflow(),
+check_sub_overflow(), e check_shl_overflow().
simple_strtol(), simple_strtoll(), simple_strtoul(), simple_strtoull()
----------------------------------------------------------------------
diff --git a/Documentation/translations/it_IT/process/howto.rst b/Documentation/translations/it_IT/process/howto.rst
index 9554368a2ae2..16ad5622d549 100644
--- a/Documentation/translations/it_IT/process/howto.rst
+++ b/Documentation/translations/it_IT/process/howto.rst
@@ -109,8 +109,7 @@ Di seguito una lista di file che sono presenti nei sorgente del kernel e che
accetteranno patch solo se queste osserveranno tali regole, e molte
persone revisioneranno il codice solo se scritto nello stile appropriato.
- :ref:`Documentation/translations/it_IT/process/submitting-patches.rst <it_submittingpatches>` e
- :ref:`Documentation/translations/it_IT/process/submitting-drivers.rst <it_submittingdrivers>`
+ :ref:`Documentation/translations/it_IT/process/submitting-patches.rst <it_submittingpatches>`
Questo file descrive dettagliatamente come creare ed inviare una patch
con successo, includendo (ma non solo questo):
diff --git a/Documentation/translations/it_IT/process/index.rst b/Documentation/translations/it_IT/process/index.rst
index c4c867132c88..8d4e36a07ff4 100644
--- a/Documentation/translations/it_IT/process/index.rst
+++ b/Documentation/translations/it_IT/process/index.rst
@@ -41,12 +41,12 @@ degli sviluppatori:
:maxdepth: 1
changes
- submitting-drivers
stable-api-nonsense
management-style
stable-kernel-rules
submit-checklist
kernel-docs
+ maintainers
Ed infine, qui ci sono alcune guide più tecniche che son state messe qua solo
perché non si è trovato un posto migliore.
diff --git a/Documentation/translations/it_IT/process/magic-number.rst b/Documentation/translations/it_IT/process/magic-number.rst
index f452fafb1e84..02eb7eb2448e 100644
--- a/Documentation/translations/it_IT/process/magic-number.rst
+++ b/Documentation/translations/it_IT/process/magic-number.rst
@@ -75,87 +75,17 @@ Registro dei cambiamenti::
Nome magico Numero Struttura File
===================== ================ ======================== ==========================================
PG_MAGIC 'P' pg_{read,write}_hdr ``include/linux/pg.h``
-CMAGIC 0x0111 user ``include/linux/a.out.h``
-MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h``
-HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c``
APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c``
-DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c``
-DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c``
FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h``
-FF_MAGIC 0x4646 fc_info ``drivers/net/iph5526_novram.c``
-PTY_MAGIC 0x5001 ``drivers/char/pty.c``
-PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h``
-SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h``
SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h``
-STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
-SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
-AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
-MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
-TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
-USB_SERIAL_MAGIC 0x6702 usb_serial ``drivers/usb/serial/usb-serial.h``
-FULL_DUPLEX_MAGIC 0x6969 ``drivers/net/ethernet/dec/tulip/de2104x.c``
-USB_BLUETOOTH_MAGIC 0x6d02 usb_bluetooth ``drivers/usb/class/bluetty.c``
-RFCOMM_TTY_MAGIC 0x6d02 ``net/bluetooth/rfcomm/tty.c``
-USB_SERIAL_PORT_MAGIC 0x7301 usb_serial_port ``drivers/usb/serial/usb-serial.h``
-CG_MAGIC 0x00090255 ufs_cylinder_group ``include/linux/ufs_fs.h``
-LSEMAGIC 0x05091998 lse ``drivers/fc4/fc.c``
-RIEBL_MAGIC 0x09051990 ``drivers/net/atarilance.c``
-NBD_REQUEST_MAGIC 0x12560953 nbd_request ``include/linux/nbd.h``
-RED_MAGIC2 0x170fc2a5 (any) ``mm/slab.c``
BAYCOM_MAGIC 0x19730510 baycom_state ``drivers/net/baycom_epp.c``
-ISDN_X25IFACE_MAGIC 0x1e75a2b9 isdn_x25iface_proto_data ``drivers/isdn/isdn_x25iface.h``
-ECP_MAGIC 0x21504345 cdkecpsig ``include/linux/cdk.h``
-LSOMAGIC 0x27091997 lso ``drivers/fc4/fc.c``
-LSMAGIC 0x2a3b4d2a ls ``drivers/fc4/fc.c``
-WANPIPE_MAGIC 0x414C4453 sdla_{dump,exec} ``include/linux/wanpipe.h``
-CS_CARD_MAGIC 0x43525553 cs_card ``sound/oss/cs46xx.c``
-LABELCL_MAGIC 0x4857434c labelcl_info_s ``include/asm/ia64/sn/labelcl.h``
-ISDN_ASYNC_MAGIC 0x49344C01 modem_info ``include/linux/isdn.h``
-CTC_ASYNC_MAGIC 0x49344C01 ctc_tty_info ``drivers/s390/net/ctctty.c``
-ISDN_NET_MAGIC 0x49344C02 isdn_net_local_s ``drivers/isdn/i4l/isdn_net_lib.h``
-SAVEKMSG_MAGIC2 0x4B4D5347 savekmsg ``arch/*/amiga/config.c``
-CS_STATE_MAGIC 0x4c4f4749 cs_state ``sound/oss/cs46xx.c``
-SLAB_C_MAGIC 0x4f17a36d kmem_cache ``mm/slab.c``
-COW_MAGIC 0x4f4f4f4d cow_header_v1 ``arch/um/drivers/ubd_user.c``
-I810_CARD_MAGIC 0x5072696E i810_card ``sound/oss/i810_audio.c``
-TRIDENT_CARD_MAGIC 0x5072696E trident_card ``sound/oss/trident.c``
-ROUTER_MAGIC 0x524d4157 wan_device [in ``wanrouter.h`` pre 3.9]
-SAVEKMSG_MAGIC1 0x53415645 savekmsg ``arch/*/amiga/config.c``
-GDA_MAGIC 0x58464552 gda ``arch/mips/include/asm/sn/gda.h``
-RED_MAGIC1 0x5a2cf071 (any) ``mm/slab.c``
-EEPROM_MAGIC_VALUE 0x5ab478d2 lanai_dev ``drivers/atm/lanai.c``
HDLCDRV_MAGIC 0x5ac6e778 hdlcdrv_state ``include/linux/hdlcdrv.h``
-PCXX_MAGIC 0x5c6df104 channel ``drivers/char/pcxx.h``
KV_MAGIC 0x5f4b565f kernel_vars_s ``arch/mips/include/asm/sn/klkernvars.h``
-I810_STATE_MAGIC 0x63657373 i810_state ``sound/oss/i810_audio.c``
-TRIDENT_STATE_MAGIC 0x63657373 trient_state ``sound/oss/trident.c``
-M3_CARD_MAGIC 0x646e6f50 m3_card ``sound/oss/maestro3.c``
-FW_HEADER_MAGIC 0x65726F66 fw_header ``drivers/atm/fore200e.h``
-SLOT_MAGIC 0x67267321 slot ``drivers/hotplug/cpqphp.h``
-SLOT_MAGIC 0x67267322 slot ``drivers/hotplug/acpiphp.h``
-LO_MAGIC 0x68797548 nbd_device ``include/linux/nbd.h``
-M3_STATE_MAGIC 0x734d724d m3_state ``sound/oss/maestro3.c``
-VMALLOC_MAGIC 0x87654320 snd_alloc_track ``sound/core/memory.c``
-KMALLOC_MAGIC 0x87654321 snd_alloc_track ``sound/core/memory.c``
-PWC_MAGIC 0x89DC10AB pwc_device ``drivers/usb/media/pwc.h``
-NBD_REPLY_MAGIC 0x96744668 nbd_reply ``include/linux/nbd.h``
-ENI155_MAGIC 0xa54b872d midway_eprom ``drivers/atm/eni.h``
CODA_MAGIC 0xC0DAC0DA coda_file_info ``fs/coda/coda_fs_i.h``
YAM_MAGIC 0xF10A7654 yam_port ``drivers/net/hamradio/yam.c``
CCB_MAGIC 0xf2691ad2 ccb ``drivers/scsi/ncr53c8xx.c``
QUEUE_MAGIC_FREE 0xf7e1c9a3 queue_entry ``drivers/scsi/arm/queue.c``
QUEUE_MAGIC_USED 0xf7e1cc33 queue_entry ``drivers/scsi/arm/queue.c``
-HTB_CMAGIC 0xFEFAFEF1 htb_class ``net/sched/sch_htb.c``
NMI_MAGIC 0x48414d4d455201 nmi_s ``arch/mips/include/asm/sn/nmi.h``
===================== ================ ======================== ==========================================
-
-Da notare che ci sono anche dei numeri magici specifici per driver nel
-*sound memory management*. Consultate ``include/sound/sndmagic.h`` per una
-lista completa. Molti driver audio OSS hanno i loro numeri magici costruiti a
-partire dall'identificativo PCI della scheda audio - nemmeno questi sono
-elencati in questo file.
-
-Il file-system HFS è un altro grande utilizzatore di numeri magici - potete
-trovarli qui ``fs/hfs/hfs.h``.
diff --git a/Documentation/translations/it_IT/process/maintainer-handbooks.rst b/Documentation/translations/it_IT/process/maintainer-handbooks.rst
new file mode 100644
index 000000000000..d840145bcceb
--- /dev/null
+++ b/Documentation/translations/it_IT/process/maintainer-handbooks.rst
@@ -0,0 +1,24 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../disclaimer-ita.rst
+
+:Original: Documentation/process/maintainer-handbooks.rst
+:Translator: Federico Vaga <federico.vaga@vaga.pv.it>
+
+.. _it_maintainer_handbooks_main:
+
+Note sul processo di sviluppo dei sottosistemi e dei sorgenti dei manutentori
+=============================================================================
+
+Lo scopo di questo documento è quello di fornire informazioni sul processo di
+sviluppo dedicate ai sottosistemi che vanno ad integrare quelle più generali
+descritte in :ref:`Documentation/translations/it_IT/process
+<it_development_process_main>`.
+
+Indice:
+
+.. toctree::
+ :numbered:
+ :maxdepth: 2
+
+ maintainer-tip
diff --git a/Documentation/translations/it_IT/process/maintainer-pgp-guide.rst b/Documentation/translations/it_IT/process/maintainer-pgp-guide.rst
index f3c8e8d377ee..a1e98ec9532e 100644
--- a/Documentation/translations/it_IT/process/maintainer-pgp-guide.rst
+++ b/Documentation/translations/it_IT/process/maintainer-pgp-guide.rst
@@ -931,12 +931,11 @@ che avete nel vostro portachiavi::
uid [ unknown] Linus Torvalds <torvalds@kernel.org>
sub rsa2048 2011-09-20 [E]
-Poi, aprite il `PGP pathfinder`_. Nel campo "From", incollate l'impronta
-digitale della chiave di Linus Torvalds che si vede nell'output qui sopra.
-Nel campo "to", incollate il key-id della chiave sconosciuta che avete
-trovato con ``gpg --search``, e poi verificare il risultato:
-
-- `Finding paths to Linus`_
+Poi, cercate un percorso affidabile da Linux Torvalds alla chiave che avete
+trovato con ``gpg --search`` usando la chiave sconosciuta.Per farlo potete usare
+diversi strumenti come https://github.com/mricon/wotmate,
+https://git.kernel.org/pub/scm/docs/kernel/pgpkeys.git/tree/graphs, e
+https://the.earth.li/~noodles/pathfind.html.
Se trovate un paio di percorsi affidabili è un buon segno circa la validità
della chiave. Ora, potete aggiungerla al vostro portachiavi dal keyserver::
@@ -948,6 +947,3 @@ fiducia nell'amministratore del servizio *PGP Pathfinder* sperando che non
sia malintenzionato (infatti, questo va contro :ref:`it_devs_not_infra`).
Tuttavia, se mantenete con cura la vostra rete di fiducia sarà un deciso
miglioramento rispetto alla cieca fiducia nei keyserver.
-
-.. _`PGP pathfinder`: https://pgp.cs.uu.nl/
-.. _`Finding paths to Linus`: https://pgp.cs.uu.nl/paths/79BE3E4300411886/to/C94035C21B4F2AEB.html
diff --git a/Documentation/translations/it_IT/process/maintainer-tip.rst b/Documentation/translations/it_IT/process/maintainer-tip.rst
new file mode 100644
index 000000000000..126f17ee541e
--- /dev/null
+++ b/Documentation/translations/it_IT/process/maintainer-tip.rst
@@ -0,0 +1,10 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../disclaimer-ita.rst
+
+:Original: Documentation/process/maintainer-tip.rst
+
+Il tascabile dei sorgenti tip
+=============================
+
+.. note:: To be translated
diff --git a/Documentation/translations/it_IT/process/maintainers.rst b/Documentation/translations/it_IT/process/maintainers.rst
new file mode 100644
index 000000000000..3225f7c89fda
--- /dev/null
+++ b/Documentation/translations/it_IT/process/maintainers.rst
@@ -0,0 +1,13 @@
+:Original: Documentation/process/maintainers.rst
+
+Lista dei manutentori e come inviare modifiche al kernel
+========================================================
+
+Questa pagina non verrà tradotta. Fate riferimento alla versione originale in
+inglese.
+
+.. note:: La pagina originale usa una direttiva speciale per integrare il file
+ `MAINTAINERS` in sphinx. La parte di quel documento che si potrebbe
+ tradurre contiene comunque informazioni già presenti in
+ :ref:`Documentation/translations/it_IT/process/submitting-patches.rst
+ <it_submittingpatches>`.
diff --git a/Documentation/translations/it_IT/process/stable-kernel-rules.rst b/Documentation/translations/it_IT/process/stable-kernel-rules.rst
index 83f48afe48b9..0be675b03199 100644
--- a/Documentation/translations/it_IT/process/stable-kernel-rules.rst
+++ b/Documentation/translations/it_IT/process/stable-kernel-rules.rst
@@ -41,10 +41,10 @@ Regole sul tipo di patch che vengono o non vengono accettate nei sorgenti
Procedura per sottomettere patch per i sorgenti -stable
-------------------------------------------------------
- - Una patch di sicurezza non dovrebbero essere gestite (solamente) dal processo
- di revisione -stable, ma dovrebbe seguire le procedure descritte in
- :ref:`Documentation/translations/it_IT/admin-guide/security-bugs.rst <it_securitybugs>`.
-
+.. note::
+ Una patch di sicurezza non dovrebbe essere gestita (solamente) dal processo
+ di revisione -stable, ma dovrebbe seguire le procedure descritte in
+ :ref:`Documentation/translations/it_IT/admin-guide/security-bugs.rst <it_securitybugs>`.
Per tutte le altre sottomissioni, scegliere una delle seguenti procedure
------------------------------------------------------------------------
@@ -90,9 +90,9 @@ L':ref:`it_option_2` e l':ref:`it_option_3` sono più utili quando, al momento
dell'inclusione dei sorgenti principali, si ritiene che non debbano essere
incluse anche in quelli stabili (per esempio, perché si crede che si dovrebbero
fare più verifiche per eventuali regressioni). L':ref:`it_option_3` è
-particolarmente utile se la patch ha bisogno di qualche modifica per essere
-applicata ad un kernel più vecchio (per esempio, perché nel frattempo l'API è
-cambiata).
+particolarmente utile se una patch dev'essere riportata su una versione
+precedente (per esempio la patch richiede modifiche a causa di cambiamenti di
+API).
Notate che per l':ref:`it_option_3`, se la patch è diversa da quella nei
sorgenti principali (per esempio perché è stato necessario un lavoro di
@@ -167,9 +167,18 @@ Ciclo di una revisione
della lista linux-kernel obietta la bontà della patch, sollevando problemi
che i manutentori ed i membri non avevano compreso, allora la patch verrà
rimossa dalla coda.
- - Alla fine del ciclo di revisione tutte le patch che hanno ricevuto l'ACK
- verranno aggiunte per il prossimo rilascio -stable, e successivamente
- questo nuovo rilascio verrà fatto.
+ - Le patch che hanno ricevuto un ACK verranno inviate nuovamente come parte di
+ un rilascio candidato (-rc) al fine di essere verificate dagli sviluppatori e
+ dai testatori.
+ - Solitamente si pubblica solo una -rc, tuttavia se si riscontrano problemi
+ importanti, alcune patch potrebbero essere modificate o essere scartate,
+ oppure nuove patch potrebbero essere messe in coda. Dunque, verranno pubblicate
+ nuove -rc e così via finché non si ritiene che non vi siano più problemi.
+ - Si può rispondere ad una -rc scrivendo sulla lista di discussione un'email
+ con l'etichetta "Tested-by:". Questa etichetta verrà raccolta ed aggiunta al
+ commit rilascio.
+ - Alla fine del ciclo di revisione il nuovo rilascio -stable conterrà tutte le
+ patch che erano in coda e sono state verificate.
- Le patch di sicurezza verranno accettate nei sorgenti -stable direttamente
dalla squadra per la sicurezza del kernel, e non passerà per il normale
ciclo di revisione. Contattate la suddetta squadra per maggiori dettagli
@@ -186,8 +195,19 @@ Sorgenti
- Il rilascio definitivo, e marchiato, di tutti i kernel stabili può essere
trovato in rami distinti per versione al seguente indirizzo:
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
+
+ - I rilasci candidati di tutti i kernel stabili possono essere trovati al
+ seguente indirizzo:
+
+ https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/
+
+ .. warning::
+ I sorgenti -stable-rc sono un'istantanea dei sorgenti stable-queue e
+ subirà frequenti modifiche, dunque verrà anche trapiantato spesso.
+ Dovrebbe essere usato solo allo scopo di verifica (per esempio in un
+ sistema di CI)
Comitato per la revisione
-------------------------
diff --git a/Documentation/translations/it_IT/process/submitting-drivers.rst b/Documentation/translations/it_IT/process/submitting-drivers.rst
deleted file mode 100644
index dadd77e47613..000000000000
--- a/Documentation/translations/it_IT/process/submitting-drivers.rst
+++ /dev/null
@@ -1,16 +0,0 @@
-.. include:: ../disclaimer-ita.rst
-
-:Original: :ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
-:Translator: Federico Vaga <federico.vaga@vaga.pv.it>
-
-.. _it_submittingdrivers:
-
-Sottomettere driver per il kernel Linux
-=======================================
-
-.. note::
-
- Questo documento è vecchio e negli ultimi anni non è stato più aggiornato;
- dovrebbe essere aggiornato, o forse meglio, rimosso. La maggior parte di
- quello che viene detto qui può essere trovato anche negli altri documenti
- dedicati allo sviluppo. Per questo motivo il documento non verrà tradotto.
diff --git a/Documentation/translations/it_IT/process/submitting-patches.rst b/Documentation/translations/it_IT/process/submitting-patches.rst
index 4fb5b3aa306d..a3bb0008837a 100644
--- a/Documentation/translations/it_IT/process/submitting-patches.rst
+++ b/Documentation/translations/it_IT/process/submitting-patches.rst
@@ -18,16 +18,18 @@ Questo documento contiene un vasto numero di suggerimenti concisi. Per maggiori
dettagli su come funziona il processo di sviluppo del kernel leggete
Documentation/translations/it_IT/process/development-process.rst. Leggete anche
Documentation/translations/it_IT/process/submit-checklist.rst per una lista di
-punti da verificare prima di inviare del codice. Se state inviando un driver,
-allora leggete anche
-Documentation/translations/it_IT/process/submitting-drivers.rst; per delle patch
-relative alle associazioni per Device Tree leggete
+punti da verificare prima di inviare del codice.
+Per delle patch relative alle associazioni per Device Tree leggete
Documentation/translations/it_IT/process/submitting-patches.rst.
Questa documentazione assume che sappiate usare ``git`` per preparare le patch.
Se non siete pratici di ``git``, allora è bene che lo impariate;
renderà la vostra vita di sviluppatore del kernel molto più semplice.
+I sorgenti di alcuni sottosistemi e manutentori contengono più informazioni
+riguardo al loro modo di lavorare ed aspettative. Consultate
+:ref:`Documentation/translations/it_IT/process/maintainer-handbooks.rst <it_maintainer_handbooks_main>`
+
Ottenere i sorgenti attuali
---------------------------
@@ -84,11 +86,11 @@ comporti come descritto.
I manutentori vi saranno grati se scrivete la descrizione della patch in un
formato che sia compatibile con il gestore dei sorgenti usato dal kernel,
-``git``, come un "commit log". Leggete :ref:`it_explicit_in_reply_to`.
+``git``, come un "commit log". Leggete :ref:`it_the_canonical_patch_format`.
Risolvete solo un problema per patch. Se la vostra descrizione inizia ad
essere lunga, potrebbe essere un segno che la vostra patch necessita d'essere
-divisa. Leggete :ref:`split_changes`.
+divisa. Leggete :ref:`it_split_changes`.
Quando inviate o rinviate una patch o una serie, includete la descrizione
completa delle modifiche e la loro giustificazione. Non limitatevi a dire che
@@ -104,17 +106,28 @@ do frotz" piuttosto che "[This patch] makes xyzzy do frotz" or "[I] changed
xyzzy to do frotz", come se steste dando ordini al codice di cambiare il suo
comportamento.
-Se la patch corregge un baco conosciuto, fare riferimento a quel baco inserendo
-il suo numero o il suo URL. Se la patch è la conseguenza di una discussione
-su una lista di discussione, allora fornite l'URL all'archivio di quella
-discussione; usate i collegamenti a https://lore.kernel.org/ con il
-``Message-Id``, in questo modo vi assicurerete che il collegamento non diventi
-invalido nel tempo.
+Se ci sono delle discussioni, o altre informazioni d'interesse, che fanno
+riferimento alla patch, allora aggiungete l'etichetta 'Link:' per farvi
+riferimento. Per esempio, se la vostra patch corregge un baco potete aggiungere
+quest'etichetta per fare riferimento ad un rapporto su una lista di discussione
+o un *bug tracker*. Un altro esempio; potete usare quest'etichetta per far
+riferimento ad una discussione precedentemente avvenuta su una lista di
+discussione, o qualcosa di documentato sul web, da cui poi è nata la patch in
+questione.
+
+Quando volete fare riferimento ad una lista di discussione, preferite il
+servizio d'archiviazione lore.kernel.org. Per create un collegamento URL è
+sufficiente usare il campo ``Message-Id``, presente nell'intestazione del
+messaggio, senza parentesi angolari. Per esempio::
+
+ Link: https://lore.kernel.org/r/30th.anniversary.repost@klaava.Helsinki.FI/
+
+Prima d'inviare il messaggio ricordatevi di verificare che il collegamento così
+creato funzioni e che indirizzi verso il messaggio desiderato.
-Tuttavia, cercate di rendere la vostra spiegazione comprensibile anche senza
-far riferimento a fonti esterne. In aggiunta ai collegamenti a bachi e liste
-di discussione, riassumente i punti più importanti della discussione che hanno
-portato alla creazione della patch.
+Tuttavia, provate comunque a dare una spiegazione comprensibile anche senza
+accedere alle fonti esterne. Inoltre, riassumente i punti più salienti che hanno
+condotto all'invio della patch.
Se volete far riferimento a uno specifico commit, non usate solo
l'identificativo SHA-1. Per cortesia, aggiungete anche la breve riga
@@ -226,10 +239,11 @@ nella vostra patch.
Dovreste sempre inviare una copia della patch ai manutentori dei sottosistemi
interessati dalle modifiche; date un'occhiata al file MAINTAINERS e alla storia
-delle revisioni per scoprire chi si occupa del codice. Lo script
-scripts/get_maintainer.pl può esservi d'aiuto. Se non riuscite a trovare un
-manutentore per il sottosistema su cui state lavorando, allora Andrew Morton
-(akpm@linux-foundation.org) sarà la vostra ultima possibilità.
+delle revisioni per scoprire chi si occupa del codice. Lo script
+scripts/get_maintainer.pl può esservi d'aiuto (passategli il percorso alle
+vostre patch). Se non riuscite a trovare un manutentore per il sottosistema su
+cui state lavorando, allora Andrew Morton (akpm@linux-foundation.org) sarà la
+vostra ultima possibilità.
Normalmente, dovreste anche scegliere una lista di discussione a cui inviare la
vostra serie di patch. La lista di discussione linux-kernel@vger.kernel.org
@@ -324,14 +338,19 @@ cosa stia accadendo.
Assicuratevi di dire ai revisori quali cambiamenti state facendo e di
ringraziarli per il loro tempo. Revisionare codice è un lavoro faticoso e che
-richiede molto tempo, e a volte i revisori diventano burberi. Tuttavia, anche
-in questo caso, rispondete con educazione e concentratevi sul problema che
-hanno evidenziato.
+richiede molto tempo, e a volte i revisori diventano burberi. Tuttavia, anche in
+questo caso, rispondete con educazione e concentratevi sul problema che hanno
+evidenziato. Quando inviate una version successiva ricordatevi di aggiungere un
+``patch changelog`` alla email di intestazione o ad ogni singola patch spiegando
+le differenze rispetto a sottomissioni precedenti (vedere
+:ref:`it_the_canonical_patch_format`).
Leggete Documentation/translations/it_IT/process/email-clients.rst per
le raccomandazioni sui programmi di posta elettronica e l'etichetta da usare
sulle liste di discussione.
+.. _it_resend_reminders:
+
Non scoraggiatevi - o impazientitevi
------------------------------------
@@ -504,7 +523,8 @@ Utilizzare Reported-by:, Tested-by:, Reviewed-by:, Suggested-by: e Fixes:
L'etichetta Reported-by da credito alle persone che trovano e riportano i bachi
e si spera che questo possa ispirarli ad aiutarci nuovamente in futuro.
Rammentate che se il baco è stato riportato in privato, dovrete chiedere il
-permesso prima di poter utilizzare l'etichetta Reported-by.
+permesso prima di poter utilizzare l'etichetta Reported-by. Questa etichetta va
+usata per i bachi, dunque non usatela per richieste di nuove funzionalità.
L'etichetta Tested-by: indica che la patch è stata verificata con successo
(su un qualche sistema) dalla persona citata. Questa etichetta informa i
@@ -574,6 +594,8 @@ previste per i kernel stabili, e nemmeno dalla necessità di aggiungere
in copia conoscenza stable@vger.kernel.org su tutte le patch per
suddetti kernel.
+.. _it_the_canonical_patch_format:
+
Il formato canonico delle patch
-------------------------------
@@ -719,6 +741,8 @@ messe correttamente oltre la riga.::
Maggiori dettagli sul formato delle patch nei riferimenti qui di seguito.
+.. _it_backtraces:
+
Aggiungere i *backtrace* nei messaggi di commit
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/Documentation/translations/ja_JP/SubmittingPatches b/Documentation/translations/ja_JP/SubmittingPatches
index 66ce0d8b0526..04deb77b20c6 100644
--- a/Documentation/translations/ja_JP/SubmittingPatches
+++ b/Documentation/translations/ja_JP/SubmittingPatches
@@ -35,8 +35,7 @@ Linux カーãƒãƒ«ã«å¤‰æ›´ã‚’加ãˆãŸã„ã¨æ€ã£ã¦ã„る個人åˆã¯ä¼šç¤¾ã
ã¦ã‚‚らãˆã‚„ã™ãã™ã‚‹æ案を集ã‚ãŸã‚‚ã®ã§ã™ã€‚
コードを投稿ã™ã‚‹å‰ã«ã€Documentation/process/submit-checklist.rst ã®é …目リストã«ç›®
-を通ã—ã¦ãƒã‚§ãƒƒã‚¯ã—ã¦ãã ã•ã„。もã—ã‚ãªãŸãŒãƒ‰ãƒ©ã‚¤ãƒãƒ¼ã‚’投稿ã—よã†ã¨ã—
-ã¦ã„ã‚‹ãªã‚‰ã€Documentation/process/submitting-drivers.rst ã«ã‚‚目を通ã—ã¦ãã ã•ã„。
+を通ã—ã¦ãƒã‚§ãƒƒã‚¯ã—ã¦ãã ã•ã„。
--------------------------------------------
セクション1 パッãƒã®ä½œã‚Šæ–¹ã¨é€ã‚Šæ–¹
diff --git a/Documentation/translations/ja_JP/howto.rst b/Documentation/translations/ja_JP/howto.rst
index 38fed6fe62fe..649e2ff2a407 100644
--- a/Documentation/translations/ja_JP/howto.rst
+++ b/Documentation/translations/ja_JP/howto.rst
@@ -129,8 +129,8 @@ linux-api@vger.kernel.org ã«é€ã‚‹ã“ã¨ã‚’勧ã‚ã¾ã™ã€‚
ルã«å¾“ã£ã¦ã„ã‚‹ã‚‚ã®ã ã‘ã‚’å—ã‘付ã‘ã€å¤šãã®äººã¯æ­£ã—ã„スタイルã®ã‚³ãƒ¼ãƒ‰
ã ã‘をレビューã—ã¾ã™ã€‚
- :ref:`Documentation/process/submitting-patches.rst <codingstyle>` 㨠:ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
- ã“れらã®ãƒ•ã‚¡ã‚¤ãƒ«ã«ã¯ã€ã©ã†ã‚„ã£ã¦ã†ã¾ãパッãƒã‚’作ã£ã¦æŠ•ç¨¿ã™ã‚‹ã‹ã«ã¤
+ :ref:`Documentation/process/submitting-patches.rst <codingstyle>`
+ ã“ã®ãƒ•ã‚¡ã‚¤ãƒ«ã«ã¯ã€ã©ã†ã‚„ã£ã¦ã†ã¾ãパッãƒã‚’作ã£ã¦æŠ•ç¨¿ã™ã‚‹ã‹ã«ã¤
ã„ã¦éžå¸¸ã«è©³ã—ã書ã‹ã‚Œã¦ãŠã‚Šã€ä»¥ä¸‹ã‚’å«ã¿ã¾ã™ (ã“ã‚Œã ã‘ã«é™ã‚‰ãªã„
ã‘ã‚Œã©ã‚‚)
diff --git a/Documentation/translations/ko_KR/howto.rst b/Documentation/translations/ko_KR/howto.rst
index e3cdf0c84892..e43970584ca4 100644
--- a/Documentation/translations/ko_KR/howto.rst
+++ b/Documentation/translations/ko_KR/howto.rst
@@ -124,7 +124,7 @@ mtk.manpages@gmail.comì˜ ë©”ì¸í…Œì´ë„ˆì—게 보낼 ê²ƒì„ ê¶Œìž¥í•œë‹¤.
ë©”ì¸í…Œì´ë„ˆë“¤ì€ ì´ ê·œì¹™ì„ ë”°ë¥´ëŠ” íŒ¨ì¹˜ë“¤ë§Œì„ ë°›ì•„ë“¤ì¼ ê²ƒì´ê³  ë§Žì€ ì‚¬ëžŒë“¤ì´
ê·¸ 패치가 올바른 스타ì¼ì¼ 경우만 코드를 검토할 것ì´ë‹¤.
- :ref:`Documentation/process/submitting-patches.rst <submittingpatches>` 와 :ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
+ :ref:`Documentation/process/submitting-patches.rst <submittingpatches>`
ì´ íŒŒì¼ë“¤ì€ 성공ì ìœ¼ë¡œ 패치를 만들고 보내는 ë²•ì„ ë‹¤ìŒì˜ 내용들로
굉장히 ìƒì„¸ížˆ 설명하고 있다(그러나 다ìŒìœ¼ë¡œ 한정ë˜ì§„ 않는다).
diff --git a/Documentation/translations/zh_CN/IRQ.txt b/Documentation/translations/zh_CN/IRQ.txt
deleted file mode 100644
index 9aec8dca4fcf..000000000000
--- a/Documentation/translations/zh_CN/IRQ.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-Chinese translated version of Documentation/core-api/irq/index.rst
-
-If you have any comment or update to the content, please contact the
-original document maintainer directly. However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help. Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
-
-Maintainer: Eric W. Biederman <ebiederman@xmission.com>
-Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
----------------------------------------------------------------------
-Documentation/core-api/irq/index.rst 的中文翻译
-
-如果想评论或更新本文的内容,请直接è”系原文档的维护者。如果你使用英文
-交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘中文版维护者求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻
-译存在问题,请è”系中文版维护者。
-英文版维护者: Eric W. Biederman <ebiederman@xmission.com>
-中文版维护者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
-中文版翻译者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
-中文版校译者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
-
-
-以下为正文
----------------------------------------------------------------------
-何为 IRQ?
-
-一个 IRQ 是æ¥è‡ªæŸä¸ªè®¾å¤‡çš„一个中断请求。目å‰ï¼Œå®ƒä»¬å¯ä»¥æ¥è‡ªä¸€ä¸ªç¡¬ä»¶å¼•è„šï¼Œ
-或æ¥è‡ªä¸€ä¸ªæ•°æ®åŒ…。多个设备å¯èƒ½è¿žæŽ¥åˆ°åŒä¸ªç¡¬ä»¶å¼•è„šï¼Œä»Žè€Œå…±äº«ä¸€ä¸ª IRQ。
-
-一个 IRQ ç¼–å·æ˜¯ç”¨äºŽå‘ŠçŸ¥ç¡¬ä»¶ä¸­æ–­æºçš„内核标识。通常情况下,这是一个
-全局 irq_desc 数组的索引,但是除了在 linux/interrupt.h 中的实现,
-具体的细节是体系结构特定的。
-
-一个 IRQ ç¼–å·æ˜¯è®¾å¤‡ä¸ŠæŸä¸ªå¯èƒ½çš„中断æºçš„枚举。通常情况下,枚举的编å·æ˜¯
-该引脚在系统内中断控制器的所有输入引脚中的编å·ã€‚对于 ISA 总线中的情况,
-枚举的是在两个 i8259 中断控制器中 16 个输入引脚。
-
-架构å¯ä»¥å¯¹ IRQ ç¼–å·æŒ‡å®šé¢å¤–çš„å«ä¹‰ï¼Œåœ¨ç¡¬ä»¶æ¶‰åŠä»»ä½•æ‰‹å·¥é…置的情况下,
-是被æ倡的。ISA çš„ IRQ 是一个分é…这类é¢å¤–å«ä¹‰çš„典型例å­ã€‚
diff --git a/Documentation/translations/zh_CN/PCI/acpi-info.rst b/Documentation/translations/zh_CN/PCI/acpi-info.rst
new file mode 100644
index 000000000000..a35f39dcd858
--- /dev/null
+++ b/Documentation/translations/zh_CN/PCI/acpi-info.rst
@@ -0,0 +1,139 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/PCI/acpi-info.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+
+=====================
+PCI主桥的ACPI注æ„事项
+=====================
+
+一般的规则是,ACPI命å空间应该æè¿°æ“作系统å¯èƒ½ä½¿ç”¨çš„所有东西,除éžæœ‰å…¶ä»–方法让æ“作系
+统找到它[1, 2]。
+
+例如,没有标准的硬件机制æ¥æžšä¸¾PCI主桥,所以ACPI命å空间必须æè¿°æ¯ä¸ªä¸»æ¡¥ã€è®¿é—®å®ƒ
+下é¢çš„PCIé…置空间的方法ã€ä¸»æ¡¥è½¬å‘到PCI的地å€ç©ºé—´çª—å£ï¼ˆä½¿ç”¨_CRS)以åŠä¼ ç»Ÿçš„INTx
+中断的路由(使用_PRT)。
+
+在主桥下é¢çš„PCI设备,通常ä¸éœ€è¦é€šè¿‡ACPIæ述。æ“作系统å¯ä»¥é€šè¿‡æ ‡å‡†çš„PCI枚举机制æ¥
+å‘现它们,使用é…置访问æ¥å‘现和识别设备,并读å–和测é‡å®ƒä»¬çš„BAR。然而,如果ACPI为它们
+æ供电æºç®¡ç†æˆ–热æ’拔功能,或者如果设备有由平å°ä¸­æ–­æŽ§åˆ¶å™¨è¿žæŽ¥çš„INTx中断,需è¦ä¸€ä¸ª_PRT
+æ¥æ述这些连接,这ç§æƒ…况下ACPIå¯ä»¥æè¿°PCI设备。
+
+ACPI资æºæ述是通过ACPI命å空间中设备的_CRS对象完æˆçš„[2]。_CRSå°±åƒä¸€ä¸ªé€šç”¨çš„PCI BAR:
+æ“作系统å¯ä»¥è¯»å–_CRS并找出正在消耗的资æºï¼Œå³ä½¿å®ƒæ²¡æœ‰è¯¥è®¾å¤‡çš„驱动程åº[3]。这一点很é‡è¦ï¼Œ
+因为它æ„味ç€ä¸€ä¸ªæ—§çš„æ“作系统å¯ä»¥æ­£ç¡®åœ°å·¥ä½œï¼Œå³ä½¿æ˜¯åœ¨æ“作系统ä¸çŸ¥é“的新设备的系统上。新设
+备å¯èƒ½ä»€ä¹ˆéƒ½ä¸åšï¼Œä½†æ“作系统至少å¯ä»¥ç¡®ä¿æ²¡æœ‰èµ„æºä¸Žå®ƒä»¬å†²çªã€‚
+
+åƒMCFGã€HPETã€ECDTç­‰é™æ€è¡¨ï¼Œä¸æ˜¯ä¿ç•™åœ°å€ç©ºé—´çš„机制。é™æ€è¡¨æ˜¯åœ¨æ“作系统在å¯åŠ¨åˆæœŸä¸”在它
+能够解æžACPI命å空间之å‰éœ€è¦çŸ¥é“的东西。如果定义了一个新的表,å³ä½¿æ—§çš„æ“作系统忽略了这
+个表,它也需è¦æ­£å¸¸è¿è¡Œã€‚_CRSå…许这样åšï¼Œå› ä¸ºå®ƒæ˜¯é€šç”¨çš„,å¯ä»¥è¢«æ—§çš„æ“作系统解æžï¼›è€Œé™æ€è¡¨
+则ä¸å…许。
+
+如果æ“作系统è¦ç®¡ç†ä¸€ä¸ªé€šè¿‡ACPIæè¿°çš„ä¸å¯å‘现的设备,该设备将有一个特定的_HID/_CID,以
+告诉æ“作系统与之绑定的驱动程åºï¼Œå¹¶ä¸”_CRS告诉æ“作系统和驱动程åºè¯¥è®¾å¤‡çš„寄存器在哪里。
+
+PCI主桥是PNP0A03或PNP0A08设备。它们的_CRS应该æ述它们所消耗的所有地å€ç©ºé—´ã€‚这包括它
+们转å‘到PCI总线上的所有窗å£ï¼Œä»¥åŠä¸è½¬å‘到PCI的主桥本身的寄存器。主桥的寄存器包括次è¦/下
+级总线寄存器,决定了桥下é¢çš„总线范围,窗å£å¯„存器æ述了桥洞,等等。这些都是设备相关的,éž
+架构相关的东西,所以PNP0A03/PNP0A08驱动å¯ä»¥ç®¡ç†å®ƒä»¬çš„唯一方法是通过_PRS/_CRS/_SRS,
+它包å«äº†ç‰¹å®šäºŽè®¾å¤‡çš„细节。主桥寄存器也包括ECAM空间,因为它是由主桥消耗的。
+
+ACPI定义了一个Consumer/Producerä½æ¥åŒºåˆ†æ¡¥å¯„存器(“Consumerâ€ä¸‹æ–‡è¯‘作消费者)和
+桥洞(“Producerâ€ä¸‹æ–‡è¯‘作生产者)[4, 5],但是早期的BIOS没有正确使用这个ä½ã€‚其结果
+是,目å‰çš„ACPI规范åªä¸ºæ‰©å±•åœ°å€ç©ºé—´æ述符定义了消费者/生产者;在旧的QWord/Word/Word地
+å€ç©ºé—´æ述符中,该ä½åº”该被忽略。因此,æ“作系统必须å‡å®šæ‰€æœ‰çš„QWord/Word/Wordæ述符都是
+窗å£ã€‚
+
+在增加扩展地å€ç©ºé—´æ述符之å‰ï¼Œæ¶ˆè´¹è€…/生产者的失败æ„味ç€æ²¡æœ‰åŠžæ³•æè¿°PNP0A03/PNP0A08设
+备本身的桥寄存器。解决办法是在PNP0C02æ•æ‰å™¨ä¸­æ述桥寄存器(包括ECAM空间)[6]。
+除了ECAM之外,桥寄存器空间å正是特定于设备的,所以通用的PNP0A03/PNP0A08驱动程
+åº(pci_root.c)没有必è¦äº†è§£å®ƒã€‚
+
+新的架构应该能够在PNP0A03设备中使用“消费者â€æ‰©å±•åœ°å€ç©ºé—´æ述符,用于桥寄存器,包括
+ECAM,尽管对[6]的严格解释å¯èƒ½ç¦æ­¢è¿™æ ·åšã€‚旧的x86å’Œia64内核å‡å®šæ‰€æœ‰çš„地å€ç©ºé—´æè¿°
+符,包括“消费者â€æ‰©å±•åœ°å€ç©ºé—´çš„æ述符,都是窗å£ï¼Œæ‰€ä»¥åœ¨è¿™äº›æž¶æž„上以这ç§æ–¹å¼æ述桥寄
+存器是ä¸å®‰å…¨çš„。
+
+PNP0C02“主æ¿â€è®¾å¤‡åŸºæœ¬ä¸Šæ˜¯ä¸‡èƒ½çš„。除了“ä¸è¦å°†è¿™äº›èµ„æºç”¨äºŽå…¶ä»–用途â€ä¹‹å¤–,没有其他的编
+程模型。因此,PNP0C02 _CRS应该声明ACPI命å空间中(1)没有被_CRS声明的任何其他设备对
+象的地å€ç©ºé—´ï¼Œ(2)ä¸åº”该被OS分é…给其他东西。
+
+除éžæœ‰ä¸€ä¸ªæ ‡å‡†çš„固件接å£ç”¨äºŽé…置访问,例如ia64 SAL接å£[7],å¦åˆ™PCIe规范è¦æ±‚使用增强
+åž‹é…置访问方法(ECAM)。主桥消耗ECAM内存地å€ç©ºé—´å¹¶å°†å†…存访问转æ¢ä¸ºPCIé…置访问。该规范
+定义了ECAM地å€ç©ºé—´çš„布局和功能;åªæœ‰åœ°å€ç©ºé—´çš„基础是特定于设备的。ACPIæ“作系统从é™æ€
+MCFG表或PNP0A03设备中的_CBA方法中了解基础地å€ã€‚
+
+MCFG表必须æè¿°éžçƒ­æ’拔主桥的ECAM空间[8]。由于MCFG是一个é™æ€è¡¨ï¼Œä¸èƒ½é€šè¿‡çƒ­æ’拔更新,
+PNP0A03设备中的_CBA方法æ述了å¯çƒ­æ’拔主桥的ECAM空间[9]。请注æ„,对于MCFGå’Œ_CBA,
+基å€æ€»æ˜¯å¯¹åº”于总线0,å³ä½¿æ¡¥å™¨ä¸‹é¢çš„总线范围(通过_CRS报告)ä¸ä»Ž0开始。
+
+
+[1] ACPI 6.2, sec 6.1:
+ 对于任何在éžæžšä¸¾ç±»åž‹çš„总线上的设备(例如,ISA总线),OSPM会枚举设备的标识符,ACPI
+ 系统固件必须为æ¯ä¸ªè®¾å¤‡æ供一个_HID对象...以使OSPM能够åšåˆ°è¿™ä¸€ç‚¹ã€‚
+
+[2] ACPI 6.2, sec 3.7:
+ æ“作系统枚举主æ¿è®¾å¤‡æ—¶ï¼Œåªéœ€é€šè¿‡è¯»å–ACPI命å空间æ¥å¯»æ‰¾å…·æœ‰ç¡¬ä»¶ID的设备。
+
+ ACPI枚举的æ¯ä¸ªè®¾å¤‡éƒ½åŒ…括ACPI命å空间中ACPI定义的对象,该对象报告设备å¯èƒ½å ç”¨çš„硬
+ 件资æº[_PRS],报告设备当å‰ä½¿ç”¨çš„资æº[_CRS]的对象,以åŠé…置这些资æºçš„对象[_SRS]。
+ 这些信æ¯è¢«å³æ’å³ç”¨æ“作系统(OSPM)用æ¥é…置设备。
+
+[3] ACPI 6.2, sec 6.2:
+ OSPM使用设备é…置对象æ¥é…置通过ACPI列举的设备的硬件资æºã€‚设备é…置对象æ供了关于当å‰
+ å’Œå¯èƒ½çš„资æºéœ€æ±‚çš„ä¿¡æ¯ï¼Œå…±äº«èµ„æºä¹‹é—´çš„关系,以åŠé…置硬件资æºçš„方法。
+
+ 当OSPM枚举一个设备时,它调用_PRSæ¥ç¡®å®šè¯¥è®¾å¤‡çš„资æºéœ€æ±‚。它也å¯ä»¥è°ƒç”¨_CRSæ¥æ‰¾åˆ°è¯¥è®¾
+ 备的当å‰èµ„æºè®¾ç½®ã€‚利用这些信æ¯ï¼Œå³æ’å³ç”¨ç³»ç»Ÿå†³å®šè®¾å¤‡åº”该消耗什么资æºï¼Œå¹¶é€šè¿‡è°ƒç”¨è®¾å¤‡
+ çš„_SRS控制方法æ¥è®¾ç½®è¿™äº›èµ„æºã€‚
+
+ 在ACPI中,设备å¯ä»¥æ¶ˆè€—资æºï¼ˆä¾‹å¦‚,传统的键盘),æ供资æºï¼ˆä¾‹å¦‚,一个专有的PCI桥),
+ 或者两者都åšã€‚除éžå¦æœ‰è§„定,设备的资æºè¢«å‡å®šä¸ºæ¥è‡ªè®¾å¤‡å±‚次结构中设备上方最近的匹é…资
+ æºã€‚
+
+[4] ACPI 6.2, sec 6.4.3.5.1, 2, 3, 4:
+ QWord/DWord/Word 地å€ç©ºé—´æ述符 (.1, .2, .3)
+ 常规标志: Bit [0] 被忽略。
+
+ 扩展地å€ç©ºé—´æ述符 (.4)
+ 常规标志: Bit [0] 消费者/生产者:
+
+ * 1 – 这个设备消费这个资æº
+ * 0 – 该设备生产和消费该资æº
+
+[5] ACPI 6.2, sec 19.6.43:
+ ResourceUsage指定内存范围是由这个设备(ResourceConsumer)消费还是传递给å­è®¾å¤‡
+ (ResourceProducer)。如果没有指定,那么就å‡å®šæ˜¯ResourceConsumer。
+
+[6] PCI Firmware 3.2, sec 4.1.2:
+ 如果æ“作系统ä¸èƒ½åŽŸç”Ÿçš„懂得ä¿ç•™MMCFG区域,MMCFG区域必须由固件ä¿ç•™ã€‚在MCFG表中或通
+ 过_CBA方法(è§ç¬¬4.1.3节)报告的地å€èŒƒå›´å¿…须通过声明主æ¿èµ„æºæ¥ä¿ç•™ã€‚对于大多数系统,
+ 主æ¿èµ„æºå°†å‡ºçŽ°åœ¨ACPI命å空间的根部(在_SB下),在一个节点的_HID为EISAID(PNP0C0
+ 2),在这ç§æƒ…况下的资æºä¸åº”该è¦æ±‚在根PCI总线的_CRS。这些资æºå¯ä»¥é€‰æ‹©åœ¨Int15 E820
+ 或EFIGetMemoryMap中作为ä¿ç•™å†…存返回,但必须始终通过ACPI作为主æ¿èµ„æºæŠ¥å‘Šã€‚
+
+[7] PCI Express 4.0, sec 7.2.2:
+ 对于PC兼容的系统,或者没有实现å…许访问é…置空间的处ç†å™¨æž¶æž„特定固件接å£æ ‡å‡†çš„系统,需
+ è¦ä½¿ç”¨æœ¬èŠ‚中定义的ECAM。
+
+[8] PCI Firmware 3.2, sec 4.1.2:
+ MCFG表是一个ACPI表,用于沟通的基础地å€å¯¹åº”çš„éžçƒ­çš„å¯ç§»åŠ¨çš„PCI段组范围内的PCI段组在
+ å¯åŠ¨æ—¶æ供给æ“作系统。这对PC兼容系统æ¥è¯´æ˜¯å¿…需的。
+
+ MCFG表仅用于沟通在å¯åŠ¨æ—¶ç³»ç»Ÿå¯ç”¨çš„PCI段组对应的基å€ã€‚
+
+[9] PCI Firmware 3.2, sec 4.1.3:
+ _CBA (Memory mapped Configuration Base Address) 控制方法是一个å¯é€‰çš„ACPI对
+ 象,用于返回热æ’拔主桥的64ä½å†…存映射的é…置基å€ã€‚_CBA 返回的基å€æ˜¯ä¸Žå¤„ç†å™¨ç›¸å…³çš„地å€ã€‚
+ _CBA 控制方法被评估为一个整数。
+
+ 这个控制方法出现在主桥对象下。当_CBA方法出现在一个活动的主桥对象下时,æ“作系统会评
+ 估这个结构,以确定内存映射的é…置基å€ï¼Œå¯¹åº”于_CRS方法中指定的总线编å·èŒƒå›´çš„PCI段组。
+ 一个包å«_CBA方法的ACPI命å空间对象也必须包å«ä¸€ä¸ªç›¸åº”çš„_SEG方法。
diff --git a/Documentation/translations/zh_CN/PCI/index.rst b/Documentation/translations/zh_CN/PCI/index.rst
index 16acb2bd9b58..cbeb33c34a98 100644
--- a/Documentation/translations/zh_CN/PCI/index.rst
+++ b/Documentation/translations/zh_CN/PCI/index.rst
@@ -10,9 +10,6 @@
:校译:
-
-.. _cn_PCI_index.rst:
-
===================
Linux PCI总线å­ç³»ç»Ÿ
===================
@@ -26,12 +23,12 @@ Linux PCI总线å­ç³»ç»Ÿ
pci-iov-howto
msi-howto
sysfs-pci
+ acpi-info
Todolist:
- acpi-info
- pci-error-recovery
- pcieaer-howto
- endpoint/index
- boot-interrupts
+* pci-error-recovery
+* pcieaer-howto
+* endpoint/index
+* boot-interrupts
diff --git a/Documentation/translations/zh_CN/PCI/pci-iov-howto.rst b/Documentation/translations/zh_CN/PCI/pci-iov-howto.rst
index fbc83dfdcead..fb023ea1374d 100644
--- a/Documentation/translations/zh_CN/PCI/pci-iov-howto.rst
+++ b/Documentation/translations/zh_CN/PCI/pci-iov-howto.rst
@@ -123,14 +123,14 @@ nr_virtfn'是è¦å¯ç”¨çš„VFçš„ç¼–å·ã€‚
...
}
- static int dev_suspend(struct pci_dev *dev, pm_message_t state)
+ static int dev_suspend(struct device *dev)
{
...
return 0;
}
- static int dev_resume(struct pci_dev *dev)
+ static int dev_resume(struct device *dev)
{
...
@@ -163,8 +163,7 @@ nr_virtfn'是è¦å¯ç”¨çš„VFçš„ç¼–å·ã€‚
.id_table = dev_id_table,
.probe = dev_probe,
.remove = dev_remove,
- .suspend = dev_suspend,
- .resume = dev_resume,
+ .driver.pm = &dev_pm_ops
.shutdown = dev_shutdown,
.sriov_configure = dev_sriov_configure,
};
diff --git a/Documentation/translations/zh_CN/PCI/pci.rst b/Documentation/translations/zh_CN/PCI/pci.rst
index 520707787256..83c2a41d38d3 100644
--- a/Documentation/translations/zh_CN/PCI/pci.rst
+++ b/Documentation/translations/zh_CN/PCI/pci.rst
@@ -255,13 +255,13 @@ pci_set_master()将通过设置PCI_COMMAND寄存器中的总线主控ä½æ¥å¯ç”
虽然所有的驱动程åºéƒ½åº”该明确指出PCI总线主控的DMA功能(如32ä½æˆ–64ä½ï¼‰ï¼Œä½†å¯¹äºŽæµå¼
æ•°æ®æ¥è¯´ï¼Œå…·æœ‰è¶…过32ä½æ€»çº¿ä¸»ç«™åŠŸèƒ½çš„设备需è¦é©±åŠ¨ç¨‹åºé€šè¿‡è°ƒç”¨å¸¦æœ‰é€‚当å‚æ•°çš„
-``pci_set_dma_mask()`` æ¥â€œæ³¨å†Œâ€è¿™ç§åŠŸèƒ½ã€‚一般æ¥è¯´ï¼Œåœ¨ç³»ç»ŸRAM高于4G物ç†åœ°å€çš„情
+``dma_set_mask()`` æ¥â€œæ³¨å†Œâ€è¿™ç§åŠŸèƒ½ã€‚一般æ¥è¯´ï¼Œåœ¨ç³»ç»ŸRAM高于4G物ç†åœ°å€çš„情
况下,这å…许更有效的DMA。
-所有PCI-Xå’ŒPCIe兼容设备的驱动程åºå¿…须调用 ``pci_set_dma_mask()`` ,因为它们
+所有PCI-Xå’ŒPCIe兼容设备的驱动程åºå¿…须调用 ``dma_set_mask()`` ,因为它们
是64ä½DMA设备。
-åŒæ ·ï¼Œå¦‚果设备å¯ä»¥é€šè¿‡è°ƒç”¨ ``pci_set_consistent_dma_mask()`` 直接寻å€åˆ°
+åŒæ ·ï¼Œå¦‚果设备å¯ä»¥é€šè¿‡è°ƒç”¨ ``dma_set_coherent_mask()`` 直接寻å€åˆ°
4G物ç†åœ°å€ä»¥ä¸Šçš„系统RAM中的“一致性内存â€ï¼Œé‚£ä¹ˆé©±åŠ¨ç¨‹åºä¹Ÿå¿…须“注册â€è¿™ç§åŠŸèƒ½ã€‚åŒ
样,这包括所有PCI-Xå’ŒPCIe兼容设备的驱动程åºã€‚许多64ä½â€œPCIâ€è®¾å¤‡ï¼ˆåœ¨PCI-X之å‰ï¼‰
和一些PCI-X设备对有效载è·ï¼ˆâ€œæµå¼â€ï¼‰æ•°æ®å…·æœ‰64ä½DMA功能,但对控制(“一致性â€ï¼‰æ•°
diff --git a/Documentation/translations/zh_CN/admin-guide/README.rst b/Documentation/translations/zh_CN/admin-guide/README.rst
index d20949e8bf6f..e679cbc3c89d 100644
--- a/Documentation/translations/zh_CN/admin-guide/README.rst
+++ b/Documentation/translations/zh_CN/admin-guide/README.rst
@@ -6,10 +6,10 @@
å´æƒ³æˆ Wu XiangCheng <bobwxc@email.cn>
-Linux内核5.x版本 <http://kernel.org/>
+Linux内核6.x版本 <http://kernel.org/>
=========================================
-以下是Linux版本5çš„å‘行注记。仔细阅读它们,
+以下是Linux版本6çš„å‘行注记。仔细阅读它们,
它们会告诉你这些都是什么,解释如何安装内核,以åŠé‡åˆ°é—®é¢˜æ—¶è¯¥å¦‚何åšã€‚
什么是Linux?
@@ -61,27 +61,27 @@ Linux内核5.x版本 <http://kernel.org/>
- 如果您è¦å®‰è£…完整的æºä»£ç ï¼Œè¯·æŠŠå†…æ ¸tar档案包放在您有æƒé™çš„目录中(例如您
的主目录)并将其解包::
- xz -cd linux-5.x.tar.xz | tar xvf -
+ xz -cd linux-6.x.tar.xz | tar xvf -
将“Xâ€æ›¿æ¢æˆæœ€æ–°å†…核的版本å·ã€‚
ã€ä¸è¦ã€‘使用 /usr/src/linux 目录ï¼è¿™é‡Œæœ‰ä¸€ç»„库头文件使用的内核头文件
(通常是ä¸å®Œæ•´çš„)。它们应该与库匹é…,而ä¸æ˜¯è¢«å†…核的å˜åŒ–æžå¾—一团糟。
- - 您还å¯ä»¥é€šè¿‡æ‰“è¡¥ä¸åœ¨5.x版本之间å‡çº§ã€‚è¡¥ä¸ä»¥xzæ ¼å¼åˆ†å‘。è¦é€šè¿‡æ‰“è¡¥ä¸è¿›è¡Œ
- 安装,请获å–所有较新的补ä¸æ–‡ä»¶ï¼Œè¿›å…¥å†…æ ¸æºä»£ç ï¼ˆlinux-5.x)的目录并
+ - 您还å¯ä»¥é€šè¿‡æ‰“è¡¥ä¸åœ¨6.x版本之间å‡çº§ã€‚è¡¥ä¸ä»¥xzæ ¼å¼åˆ†å‘。è¦é€šè¿‡æ‰“è¡¥ä¸è¿›è¡Œ
+ 安装,请获å–所有较新的补ä¸æ–‡ä»¶ï¼Œè¿›å…¥å†…æ ¸æºä»£ç ï¼ˆlinux-6.x)的目录并
执行::
- xz -cd ../patch-5.x.xz | patch -p1
+ xz -cd ../patch-6.x.xz | patch -p1
请ã€æŒ‰é¡ºåºã€‘替æ¢æ‰€æœ‰å¤§äºŽå½“å‰æºä»£ç æ ‘版本的“xâ€ï¼Œè¿™æ ·å°±å¯ä»¥äº†ã€‚您å¯èƒ½æƒ³è¦
删除备份文件(文件å类似xxx~ 或 xxx.orig),并确ä¿æ²¡æœ‰å¤±è´¥çš„è¡¥ä¸ï¼ˆæ–‡ä»¶å
类似xxx# 或 xxx.rej)。如果有,ä¸æ˜¯ä½ å°±æ˜¯æˆ‘犯了错误。
- 与5.x内核的补ä¸ä¸åŒï¼Œ5.x.y内核(也称为稳定版内核)的补ä¸ä¸æ˜¯å¢žé‡çš„,而是
- 直接应用于基本的5.x内核。例如,如果您的基本内核是5.0,并且希望应用5.0.3
- è¡¥ä¸ï¼Œåˆ™ä¸åº”先应用5.0.1å’Œ5.0.2çš„è¡¥ä¸ã€‚类似地,如果您è¿è¡Œçš„是5.0.2内核,
- 并且希望跳转到5.0.3,那么在应用5.0.3è¡¥ä¸ä¹‹å‰ï¼Œå¿…须首先撤销5.0.2è¡¥ä¸
+ 与6.x内核的补ä¸ä¸åŒï¼Œ6.x.y内核(也称为稳定版内核)的补ä¸ä¸æ˜¯å¢žé‡çš„,而是
+ 直接应用于基本的6.x内核。例如,如果您的基本内核是6.0,并且希望应用6.0.3
+ è¡¥ä¸ï¼Œåˆ™ä¸åº”先应用6.0.1å’Œ6.0.2çš„è¡¥ä¸ã€‚类似地,如果您è¿è¡Œçš„是6.0.2内核,
+ 并且希望跳转到6.0.3,那么在应用6.0.3è¡¥ä¸ä¹‹å‰ï¼Œå¿…须首先撤销6.0.2è¡¥ä¸
(å³patch -R)。更多关于这方é¢çš„内容,请阅读
:ref:`Documentation/process/applying-patches.rst <applying_patches>` 。
@@ -103,7 +103,7 @@ Linux内核5.x版本 <http://kernel.org/>
软件è¦æ±‚
---------
- 编译和è¿è¡Œ5.x内核需è¦å„ç§è½¯ä»¶åŒ…的最新版本。请å‚考
+ 编译和è¿è¡Œ6.x内核需è¦å„ç§è½¯ä»¶åŒ…的最新版本。请å‚考
:ref:`Documentation/process/changes.rst <changes>`
æ¥äº†è§£æœ€ä½Žç‰ˆæœ¬è¦æ±‚以åŠå¦‚何å‡çº§è½¯ä»¶åŒ…。请注æ„,使用过旧版本的这些包å¯èƒ½ä¼š
导致很难追踪的间接错误,因此ä¸è¦ä»¥ä¸ºåœ¨ç”Ÿæˆæˆ–æ“作过程中出现明显问题时å¯ä»¥
@@ -116,12 +116,12 @@ Linux内核5.x版本 <http://kernel.org/>
``make O=output/dir`` 选项å¯ä»¥ä¸ºè¾“出文件(包括 .config)指定备用ä½ç½®ã€‚
例如::
- kernel source code: /usr/src/linux-5.x
+ kernel source code: /usr/src/linux-6.x
build directory: /home/name/build/kernel
è¦é…置和构建内核,请使用::
- cd /usr/src/linux-5.x
+ cd /usr/src/linux-6.x
make O=/home/name/build/kernel menuconfig
make O=/home/name/build/kernel
sudo make O=/home/name/build/kernel modules_install install
@@ -227,8 +227,6 @@ Linux内核5.x版本 <http://kernel.org/>
- ç¡®ä¿æ‚¨è‡³å°‘有gcc 5.1å¯ç”¨ã€‚
有关更多信æ¯ï¼Œè¯·å‚阅 :ref:`Documentation/process/changes.rst <changes>` 。
- 请注æ„,您ä»ç„¶å¯ä»¥ä½¿ç”¨æ­¤å†…æ ¸è¿è¡Œa.out用户程åºã€‚
-
- 执行 ``make`` æ¥åˆ›å»ºåŽ‹ç¼©å†…核映åƒã€‚如果您安装了lilo以适é…内核makefile,
那么也å¯ä»¥è¿›è¡Œ ``make install`` ,但是您å¯èƒ½éœ€è¦å…ˆæ£€æŸ¥ç‰¹å®šçš„lilo设置。
@@ -282,67 +280,12 @@ Linux内核5.x版本 <http://kernel.org/>
è‹¥é‡åˆ°é—®é¢˜
-----------
- - 如果您å‘现了一些å¯èƒ½ç”±äºŽå†…核缺陷所导致的问题,请检查MAINTAINERS(维护者)
- 文件看看是å¦æœ‰äººä¸Žä»¤æ‚¨é‡åˆ°éº»çƒ¦çš„内核部分相关。如果无人在此列出,那么第二
- 个最好的方案就是把它们å‘给我(torvalds@linux-foundation.org),也å¯èƒ½å‘é€
- 到任何其他相关的邮件列表或新闻组。
-
- - 在所有的缺陷报告中,ã€è¯·ã€‘告诉我们您在说什么内核,如何å¤çŽ°é—®é¢˜ï¼Œä»¥åŠæ‚¨çš„
- 设置是什么的(使用您的常识)。如果问题是新的,请告诉我;如果问题是旧的,
- 请å°è¯•å‘Šè¯‰æˆ‘您什么时候首次注æ„到它。
-
- - 如果缺陷导致如下消æ¯::
-
- unable to handle kernel paging request at address C0000010
- Oops: 0002
- EIP: 0010:XXXXXXXX
- eax: xxxxxxxx ebx: xxxxxxxx ecx: xxxxxxxx edx: xxxxxxxx
- esi: xxxxxxxx edi: xxxxxxxx ebp: xxxxxxxx
- ds: xxxx es: xxxx fs: xxxx gs: xxxx
- Pid: xx, process nr: xx
- xx xx xx xx xx xx xx xx xx xx
-
- 或者类似的内核调试信æ¯æ˜¾ç¤ºåœ¨å±å¹•ä¸Šæˆ–在系统日志里,请ã€å¦‚实】å¤åˆ¶å®ƒã€‚
- å¯èƒ½å¯¹ä½ æ¥è¯´è½¬å‚¨ï¼ˆdump)看起æ¥ä¸å¯ç†è§£ï¼Œä½†å®ƒç¡®å®žåŒ…å«å¯èƒ½æœ‰åŠ©äºŽè°ƒè¯•é—®é¢˜çš„
- ä¿¡æ¯ã€‚转储上方的文本也很é‡è¦ï¼šå®ƒè¯´æ˜Žäº†å†…核转储代ç çš„原因(在上é¢çš„示例中,
- 是由于内核指针错误)。更多关于如何ç†è§£è½¬å‚¨çš„ä¿¡æ¯ï¼Œè¯·å‚è§
- Documentation/admin-guide/bug-hunting.rst。
-
- - 如果使用 CONFIG_KALLSYMS 编译内核,则å¯ä»¥æŒ‰åŽŸæ ·å‘é€è½¬å‚¨ï¼Œå¦åˆ™å¿…须使用
- ``ksymoops`` 程åºæ¥ç†è§£è½¬å‚¨ï¼ˆä½†é€šå¸¸é¦–选使用CONFIG_KALLSYMS编译)。
- 此实用程åºå¯ä»Ž
- https://www.kernel.org/pub/linux/utils/kernel/ksymoops/ 下载。
- 或者,您å¯ä»¥æ‰‹åŠ¨æ‰§è¡Œè½¬å‚¨æŸ¥æ‰¾ï¼š
-
- - 在调试åƒä¸Šé¢è¿™æ ·çš„转储时,如果您å¯ä»¥æŸ¥æ‰¾EIP值的å«ä¹‰ï¼Œè¿™å°†éžå¸¸æœ‰å¸®åŠ©ã€‚
- å六进制值本身对我或其他任何人都没有太大帮助:它会å–决于特定的内核设置。
- 您应该åšçš„是从EIP行获å–å六进制值(忽略 ``0010:`` ),然åŽåœ¨å†…æ ¸å字列表
- 中查找它,以查看哪个内核函数包å«æœ‰é—®é¢˜çš„地å€ã€‚
-
- è¦æ‰¾åˆ°å†…核函数å,您需è¦æ‰¾åˆ°ä¸Žæ˜¾ç¤ºç—‡çŠ¶çš„内核相关è”的系统二进制文件。就是
- 文件“linux/vmlinuxâ€ã€‚è¦æå–å字列表并将其与内核崩溃中的EIP进行匹é…,
- 请执行::
-
- nm vmlinux | sort | less
-
- 这将为您æ供一个按å‡åºæŽ’åºçš„内核地å€åˆ—表,从中很容易找到包å«æœ‰é—®é¢˜çš„地å€
- 的函数。请注æ„,内核调试消æ¯æ供的地å€ä¸ä¸€å®šä¸Žå‡½æ•°åœ°å€å®Œå…¨åŒ¹é…(事实上,
- 这是ä¸å¯èƒ½çš„),因此您ä¸èƒ½åªâ€œgrepâ€åˆ—表:ä¸è¿‡åˆ—表将为您æä¾›æ¯ä¸ªå†…核函数
- 的起点,因此通过查找起始地å€ä½ŽäºŽä½ æ­£åœ¨æœç´¢çš„地å€ï¼Œä½†åŽä¸€ä¸ªå‡½æ•°çš„高于的
- 函数,你会找到您想è¦çš„。实际上,在您的问题报告中加入一些“上下文â€å¯èƒ½æ˜¯
- 一个好主æ„,给出相关的上下几行。
-
- 如果您由于æŸäº›åŽŸå› æ— æ³•å®Œæˆä¸Šè¿°æ“作(如您使用预编译的内核映åƒæˆ–类似的映åƒï¼‰ï¼Œ
- 请尽å¯èƒ½å¤šåœ°å‘Šè¯‰æˆ‘您的相关设置信æ¯ï¼Œè¿™ä¼šæœ‰æ‰€å¸®åŠ©ã€‚有关详细信æ¯è¯·é˜…读
- ‘Documentation/admin-guide/reporting-issues.rst’。
-
- - 或者,您å¯ä»¥åœ¨æ­£åœ¨è¿è¡Œçš„内核上使用gdb(åªè¯»çš„ï¼›å³ä¸èƒ½æ›´æ”¹å€¼æˆ–设置断点)。
- 为此,请首先使用-g编译内核;适当地编辑arch/x86/Makefile,然åŽæ‰§è¡Œ ``make
- clean`` 。您还需è¦å¯ç”¨CONFIG_PROC_FS(通过 ``make config`` )。
-
- 使用新内核é‡æ–°å¯åŠ¨åŽï¼Œæ‰§è¡Œ ``gdb vmlinux /proc/kcore`` 。现在å¯ä»¥ä½¿ç”¨æ‰€æœ‰
- 普通的gdb命令。查找系统崩溃点的命令是 ``l *0xXXXXXXXX`` (将xxx替æ¢ä¸ºEIP
- 值)。
-
- 用gdb无法调试一个当å‰æœªè¿è¡Œçš„内核是由于gdb(错误地)忽略了编译内核的起始
- å移é‡ã€‚
+如果您å‘现了一些å¯èƒ½ç”±äºŽå†…核缺陷所导致的问题,请å‚阅:
+Documentation/translations/zh_CN/admin-guide/reporting-issues.rst 。
+
+想è¦ç†è§£å†…核错误报告,请å‚阅:
+Documentation/translations/zh_CN/admin-guide/bug-hunting.rst 。
+
+更多用GDB调试内核的信æ¯ï¼Œè¯·å‚阅:
+Documentation/translations/zh_CN/dev-tools/gdb-kernel-debugging.rst
+和 Documentation/dev-tools/kgdb.rst 。
diff --git a/Documentation/translations/zh_CN/admin-guide/bootconfig.rst b/Documentation/translations/zh_CN/admin-guide/bootconfig.rst
new file mode 100644
index 000000000000..072d17f5f199
--- /dev/null
+++ b/Documentation/translations/zh_CN/admin-guide/bootconfig.rst
@@ -0,0 +1,293 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/admin-guide/bootconfig.rst
+
+:译者: å´æƒ³æˆ Wu XiangCheng <bobwxc@email.cn>
+
+========
+引导é…ç½®
+========
+
+:作者: Masami Hiramatsu <mhiramat@kernel.org>
+
+概述
+====
+
+引导é…置扩展了现有的内核命令行,以一ç§æ›´æœ‰æ•ˆçŽ‡çš„æ–¹å¼åœ¨å¼•å¯¼å†…核时进一步支æŒ
+键值数æ®ã€‚è¿™å…许管ç†å‘˜ä¼ é€’一份结构化关键字的é…置文件。
+
+é…置文件语法
+============
+
+引导é…置文件的语法采用éžå¸¸ç®€å•çš„键值结构。æ¯ä¸ªå…³é”®å­—由点连接的å•è¯ç»„æˆï¼Œé”®
+和值由 ``=`` 连接。值以分å·ï¼ˆ ``;`` )或æ¢è¡Œç¬¦ï¼ˆ ``\n`` )结尾。数组值中æ¯
+个元素由逗å·ï¼ˆ ``,`` )分隔。::
+
+ KEY[.WORD[...]] = VALUE[, VALUE2[...]][;]
+
+与内核命令行语法ä¸åŒï¼Œé€—å·å’Œ ``=`` 周围å…许有空格。
+
+关键字åªå…许包å«å­—æ¯ã€æ•°å­—ã€è¿žå­—符( ``-`` )和下划线( ``_`` )。值å¯åŒ…å«
+å¯æ‰“å°å­—符和空格,但分å·ï¼ˆ ``;`` )ã€æ¢è¡Œç¬¦ï¼ˆ ``\n`` )ã€é€—å·ï¼ˆ ``,`` )ã€
+井å·ï¼ˆ ``#`` )和å³å¤§æ‹¬å·ï¼ˆ ``}`` )等分隔符除外。
+
+如果你需è¦åœ¨å€¼ä¸­ä½¿ç”¨è¿™äº›åˆ†éš”符,å¯ä»¥ç”¨åŒå¼•å·ï¼ˆ ``"VALUE"`` )或å•å¼•å·
+( ``'VALUE'`` )括起æ¥ã€‚注æ„,引å·æ— æ³•è½¬ä¹‰ã€‚
+
+键的值å¯ä»¥ä¸ºç©ºæˆ–ä¸å­˜åœ¨ã€‚这些键用于检查该键是å¦å­˜åœ¨ï¼ˆç±»ä¼¼å¸ƒå°”值)。
+
+键值语法
+--------
+
+引导é…置文件语法å…许用户通过大括å·åˆå¹¶é”®å部分相åŒçš„关键字。例如::
+
+ foo.bar.baz = value1
+ foo.bar.qux.quux = value2
+
+也å¯ä»¥å†™æˆ::
+
+ foo.bar {
+ baz = value1
+ qux.quux = value2
+ }
+
+或者更紧凑一些,写æˆ::
+
+ foo.bar { baz = value1; qux.quux = value2 }
+
+在这两ç§æ ·å¼ä¸­ï¼Œå¼•å¯¼è§£æžæ—¶ç›¸åŒçš„关键字都会自动åˆå¹¶ã€‚å› æ­¤å¯ä»¥è¿½åŠ ç±»ä¼¼çš„树或
+键值。
+
+相åŒå…³é”®å­—的值
+--------------
+
+ç¦æ­¢ä¸¤ä¸ªæˆ–多个值或数组共享åŒä¸€ä¸ªå…³é”®å­—。例如::
+
+ foo = bar, baz
+ foo = qux # !错误! 我们ä¸å¯ä»¥é‡å®šä¹‰ç›¸åŒçš„关键字
+
+如果你想è¦æ›´æ–°å€¼ï¼Œå¿…须显å¼ä½¿ç”¨è¦†ç›–æ“作符 ``:=`` 。例如::
+
+ foo = bar, baz
+ foo := qux
+
+这样 ``foo`` 关键字的值就å˜æˆäº† ``qux`` 。这对于通过添加(部分)自定义引导
+é…ç½®æ¥è¦†ç›–默认值éžå¸¸æœ‰ç”¨ï¼Œå…于解æžé»˜è®¤å¼•å¯¼é…置。
+
+如果你想对现有关键字追加值作为数组æˆå‘˜ï¼Œå¯ä»¥ä½¿ç”¨ ``+=`` æ“作符。例如::
+
+ foo = bar, baz
+ foo += qux
+
+这样, ``foo`` 关键字就åŒæ—¶æ‹¥æœ‰äº† ``bar`` , ``baz`` å’Œ ``qux`` 。
+
+此外,父关键字下å¯åŒæ—¶å­˜åœ¨å€¼å’Œå­å…³é”®å­—。
+例如,下列é…置是å¯è¡Œçš„。::
+
+ foo = value1
+ foo.bar = value2
+ foo := value3 # 这会更新foo的值。
+
+注æ„,裸值ä¸èƒ½ç›´æŽ¥æ”¾è¿›ç»“构化关键字中,必须在大括å·å¤–定义它。例如::
+
+ foo {
+ bar = value1
+ bar {
+ baz = value2
+ qux = value3
+ }
+ }
+
+åŒæ—¶ï¼Œå…³é”®å­—下值节点的顺åºæ˜¯å›ºå®šçš„。如果值和å­å…³é”®å­—åŒæ—¶å­˜åœ¨ï¼Œå€¼æ°¸è¿œæ˜¯è¯¥å…³
+键字的第一个å­èŠ‚点。因此如果用户先指定å­å…³é”®å­—,如::
+
+ foo.bar = value1
+ foo = value2
+
+则在程åºï¼ˆå’Œ/proc/bootconfig)中,它会按如下显示::
+
+ foo = value2
+ foo.bar = value1
+
+注释
+----
+
+é…置语法接å—shell脚本风格的注释。注释以井å·ï¼ˆ ``#`` )开始,到æ¢è¡Œç¬¦
+( ``\n`` )结æŸã€‚
+
+::
+
+ # comment line
+ foo = value # value is set to foo.
+ bar = 1, # 1st element
+ 2, # 2nd element
+ 3 # 3rd element
+
+会被解æžä¸º::
+
+ foo = value
+ bar = 1, 2, 3
+
+注æ„ä½ ä¸èƒ½æŠŠæ³¨é‡Šæ”¾åœ¨å€¼å’Œåˆ†éš”符( ``,`` 或 ``;`` )之间。如下é…置语法是错误的::
+
+ key = 1 # comment
+ ,2
+
+
+/proc/bootconfig
+================
+
+/proc/bootconfig是引导é…置的用户空间接å£ã€‚与/proc/cmdlineä¸åŒï¼Œæ­¤æ–‡ä»¶å†…容以
+键值列表样å¼æ˜¾ç¤ºã€‚
+æ¯ä¸ªé”®å€¼å¯¹ä¸€è¡Œï¼Œæ ·å¼å¦‚下::
+
+ KEY[.WORDS...] = "[VALUE]"[,"VALUE2"...]
+
+
+用引导é…置引导内核
+==================
+
+用引导é…置引导内核有两ç§æ–¹æ³•ï¼šå°†å¼•å¯¼é…置附加到initrdé•œåƒæˆ–直接嵌入内核中。
+
+*initrd: initial RAM disk,åˆå§‹å†…å­˜ç£ç›˜*
+
+将引导é…置附加到initrd
+----------------------
+
+由于默认情况下引导é…置文件是用initrd加载的,因此它将被添加到initrd(initramfs)
+é•œåƒæ–‡ä»¶çš„末尾,其中包å«å¡«å……ã€å¤§å°ã€æ ¡éªŒå€¼å’Œ12字节幻数,如下所示::
+
+ [initrd][bootconfig][padding][size(le32)][checksum(le32)][#BOOTCONFIG\n]
+
+大å°å’Œæ ¡éªŒå€¼ä¸ºå°ç«¯åºå­˜æ”¾çš„32ä½æ— ç¬¦å·å€¼ã€‚
+
+当引导é…置被加到initrdé•œåƒæ—¶ï¼Œæ•´ä¸ªæ–‡ä»¶å¤§å°ä¼šå¯¹é½åˆ°4字节。空字符( ``\0`` )
+会填补对é½ç©ºéš™ã€‚å› æ­¤ ``size`` 就是引导é…置文件的长度+填充的字节。
+
+Linux内核在内存中解ç initrdé•œåƒçš„最åŽéƒ¨åˆ†ä»¥èŽ·å–引导é…置数æ®ã€‚由于这ç§â€œèƒŒè´Ÿå¼â€
+的方法,åªè¦å¼•å¯¼åŠ è½½å™¨ä¼ é€’了正确的initrd文件大å°ï¼Œå°±æ— éœ€æ›´æ”¹æˆ–更新引导加载器
+和内核镜åƒæœ¬èº«ã€‚如果引导加载器æ„外传递了更长的大å°ï¼Œå†…核将无法找到引导é…置数
+æ®ã€‚
+
+Linux内核在tools/bootconfig下æ供了 ``bootconfig`` 命令æ¥å®Œæˆæ­¤æ“作,管ç†å‘˜
+å¯ä»¥ç”¨å®ƒä»Žinitrdé•œåƒä¸­åˆ é™¤æˆ–追加é…置文件。你å¯ä»¥ç”¨ä»¥ä¸‹å‘½ä»¤æ¥æž„建它::
+
+ # make -C tools/bootconfig
+
+è¦å‘initrdé•œåƒæ·»åŠ ä½ çš„引导é…置文件,请按如下命令æ“作(旧数æ®ä¼šè‡ªåŠ¨ç§»é™¤ï¼‰::
+
+ # tools/bootconfig/bootconfig -a your-config /boot/initrd.img-X.Y.Z
+
+è¦ä»Žé•œåƒä¸­ç§»é™¤é…置,å¯ä»¥ä½¿ç”¨-d选项::
+
+ # tools/bootconfig/bootconfig -d /boot/initrd.img-X.Y.Z
+
+然åŽåœ¨å†…核命令行上添加 ``bootconfig`` 告诉内核去initrd文件末尾寻找内核é…置。
+
+将引导é…置嵌入内核
+------------------
+
+如果你ä¸èƒ½ä½¿ç”¨initrd,也å¯ä»¥é€šè¿‡Kconfig选项将引导é…置文件嵌入内核中。在此情
+况下,你需è¦ç”¨ä»¥ä¸‹é€‰é¡¹é‡æ–°ç¼–译内核::
+
+ CONFIG_BOOT_CONFIG_EMBED=y
+ CONFIG_BOOT_CONFIG_EMBED_FILE="/引导é…ç½®/文件/çš„/路径"
+
+``CONFIG_BOOT_CONFIG_EMBED_FILE`` 需è¦ä»Žæºç æ ‘或对象树开始的引导é…置文件的
+ç»å¯¹/相对路径。内核会将其嵌入作为默认引导é…置。
+
+与将引导é…置附加到initrd一样,你也需è¦åœ¨å†…核命令行上添加 ``bootconfig`` 告诉
+内核去å¯ç”¨å†…嵌的引导é…置。
+
+注æ„,å³ä½¿ä½ å·²ç»è®¾ç½®äº†æ­¤é€‰é¡¹ï¼Œä»å¯ç”¨é™„加到initrd的其他引导é…置覆盖内嵌的引导
+é…置。
+
+通过引导é…置传递内核å‚æ•°
+========================
+
+除了内核命令行,引导é…置也å¯ä»¥ç”¨äºŽä¼ é€’内核å‚数。所有 ``kernel`` 关键字下的键
+值对都将直接传递给内核命令行。此外, ``init`` 下的键值对将通过命令行传递给
+init进程。å‚数按以下顺åºä¸Žç”¨æˆ·ç»™å®šçš„内核命令行字符串相连,因此命令行å‚æ•°å¯ä»¥
+覆盖引导é…ç½®å‚数(这å–决于å­ç³»ç»Ÿå¦‚何处ç†å‚数,但通常å‰é¢çš„å‚数将被åŽé¢çš„å‚æ•°
+覆盖)::
+
+ [bootconfig params][cmdline params] -- [bootconfig init params][cmdline init params]
+
+如果引导é…置文件给出的kernel/initå‚数是::
+
+ kernel {
+ root = 01234567-89ab-cdef-0123-456789abcd
+ }
+ init {
+ splash
+ }
+
+这将被å¤åˆ¶åˆ°å†…核命令行字符串中,如下所示::
+
+ root="01234567-89ab-cdef-0123-456789abcd" -- splash
+
+如果用户给出的其他命令行是::
+
+ ro bootconfig -- quiet
+
+则最åŽçš„内核命令行如下::
+
+ root="01234567-89ab-cdef-0123-456789abcd" ro bootconfig -- splash quiet
+
+
+é…置文件的é™åˆ¶
+==============
+
+当å‰æœ€å¤§çš„é…置大å°æ˜¯32KB,关键字总数(ä¸æ˜¯é”®å€¼æ¡ç›®ï¼‰å¿…须少于1024个节点。
+注æ„:这ä¸æ˜¯æ¡ç›®æ•°è€Œæ˜¯èŠ‚点数,æ¡ç›®å¿…须消耗超过2个节点(一个关键字和一个值)。
+所以从ç†è®ºä¸Šè®²æœ€å¤š512个键值对。如果关键字平å‡åŒ…å«3个å•è¯ï¼Œåˆ™å¯æœ‰256个键值对。
+在大多数情况下,é…置项的数é‡å°†å°‘于100个æ¡ç›®ï¼Œå°äºŽ8KB,因此这应该足够了。如果
+节点数超过1024,解æžå™¨å°†è¿”回错误,å³ä½¿æ–‡ä»¶å¤§å°å°äºŽ32KB。(请注æ„,此最大尺寸
+ä¸åŒ…括填充的空字符。)
+无论如何,因为 ``bootconfig`` 命令在附加å¯åŠ¨é…置到initrd映åƒæ—¶ä¼šéªŒè¯å®ƒï¼Œç”¨æˆ·
+å¯ä»¥åœ¨å¼•å¯¼ä¹‹å‰æ³¨æ„到它。
+
+
+引导é…ç½®API
+===========
+
+用户å¯ä»¥æŸ¥è¯¢æˆ–é历键值对,也å¯ä»¥æŸ¥æ‰¾ï¼ˆå‰ç¼€ï¼‰æ ¹å…³é”®å­—节点,并在查找该节点下的
+键值。
+
+如果您有一个关键字字符串,则å¯ä»¥ç›´æŽ¥ä½¿ç”¨ xbc_find_value() 查询该键的值。如果
+你想知é“引导é…置里有哪些关键字,å¯ä»¥ä½¿ç”¨ xbc_for_each_key_value() 迭代键值对。
+请注æ„,您需è¦ä½¿ç”¨ xbc_array_for_each_value() 访问数组的值,例如::
+
+ vnode = NULL;
+ xbc_find_value("key.word", &vnode);
+ if (vnode && xbc_node_is_array(vnode))
+ xbc_array_for_each_value(vnode, value) {
+ printk("%s ", value);
+ }
+
+如果您想查找具有å‰ç¼€å­—符串的键,å¯ä»¥ä½¿ç”¨ xbc_find_node() 通过å‰ç¼€å­—符串查找
+节点,然åŽç”¨ xbc_node_for_each_key_value() 迭代å‰ç¼€èŠ‚点下的键。
+
+但最典型的用法是获å–å‰ç¼€ä¸‹çš„命å值或å‰ç¼€ä¸‹çš„命å数组,例如::
+
+ root = xbc_find_node("key.prefix");
+ value = xbc_node_find_value(root, "option", &vnode);
+ ...
+ xbc_node_for_each_array_value(root, "array-option", value, anode) {
+ ...
+ }
+
+这将访问值“key.prefix.optionâ€çš„值和“key.prefix.array-optionâ€çš„数组。
+
+é”是ä¸éœ€è¦çš„,因为在åˆå§‹åŒ–之åŽé…ç½®åªè¯»ã€‚如果需è¦ä¿®æ”¹ï¼Œå¿…é¡»å¤åˆ¶æ‰€æœ‰æ•°æ®å’Œå…³é”®å­—。
+
+
+函数与结构体
+============
+
+相关定义的kernel-docå‚è§ï¼š
+
+ - include/linux/bootconfig.h
+ - lib/bootconfig.c
diff --git a/Documentation/translations/zh_CN/admin-guide/index.rst b/Documentation/translations/zh_CN/admin-guide/index.rst
index be535ffaf4b0..ac2960da33e6 100644
--- a/Documentation/translations/zh_CN/admin-guide/index.rst
+++ b/Documentation/translations/zh_CN/admin-guide/index.rst
@@ -36,6 +36,7 @@ Todolist:
:maxdepth: 1
reporting-issues
+ reporting-regressions
security-bugs
bug-hunting
bug-bisect
@@ -44,7 +45,6 @@ Todolist:
Todolist:
-* reporting-bugs
* ramoops
* dynamic-debug-howto
* kdump/index
@@ -63,6 +63,7 @@ Todolist:
.. toctree::
:maxdepth: 1
+ bootconfig
clearing-warn-once
cpu-load
cputopology
@@ -80,7 +81,6 @@ Todolist:
* binderfs
* binfmt-misc
* blockdev/index
-* bootconfig
* braille-console
* btmrvl
* cgroup-v1/index
diff --git a/Documentation/translations/zh_CN/admin-guide/mm/damon/index.rst b/Documentation/translations/zh_CN/admin-guide/mm/damon/index.rst
index 0c8276109fc0..30c69e1f44fe 100644
--- a/Documentation/translations/zh_CN/admin-guide/mm/damon/index.rst
+++ b/Documentation/translations/zh_CN/admin-guide/mm/damon/index.rst
@@ -13,7 +13,7 @@
监测数æ®è®¿é—®
============
-:doc:`DAMON </vm/damon/index>` å…许轻é‡çº§çš„æ•°æ®è®¿é—®ç›‘测。使用DAMON,
+:doc:`DAMON </mm/damon/index>` å…许轻é‡çº§çš„æ•°æ®è®¿é—®ç›‘测。使用DAMON,
用户å¯ä»¥åˆ†æžä»–们系统的内存访问模å¼ï¼Œå¹¶ä¼˜åŒ–它们。
.. toctree::
diff --git a/Documentation/translations/zh_CN/admin-guide/mm/damon/reclaim.rst b/Documentation/translations/zh_CN/admin-guide/mm/damon/reclaim.rst
index 1500bdbf338a..c976f3e33ffd 100644
--- a/Documentation/translations/zh_CN/admin-guide/mm/damon/reclaim.rst
+++ b/Documentation/translations/zh_CN/admin-guide/mm/damon/reclaim.rst
@@ -229,4 +229,4 @@ DAMON_RECLAIMå†æ¬¡ä»€ä¹ˆéƒ½ä¸åšï¼Œè¿™æ ·æˆ‘们就å¯ä»¥é€€å›žåˆ°åŸºäºŽLRU列è
.. [1] https://research.google/pubs/pub48551/
.. [2] https://lwn.net/Articles/787611/
-.. [3] https://www.kernel.org/doc/html/latest/vm/free_page_reporting.html
+.. [3] https://www.kernel.org/doc/html/latest/mm/free_page_reporting.html
diff --git a/Documentation/translations/zh_CN/admin-guide/mm/damon/usage.rst b/Documentation/translations/zh_CN/admin-guide/mm/damon/usage.rst
index eee0e8c5c368..aeae2ab65dd8 100644
--- a/Documentation/translations/zh_CN/admin-guide/mm/damon/usage.rst
+++ b/Documentation/translations/zh_CN/admin-guide/mm/damon/usage.rst
@@ -33,9 +33,9 @@ DAMON 为ä¸åŒçš„用户æ供了下é¢è¿™äº›æŽ¥å£ã€‚
å£ç›¸åŒã€‚这将在下一个LTS内核å‘布åŽè¢«ç§»é™¤ï¼Œæ‰€ä»¥ç”¨æˆ·åº”该转移到
:ref:`sysfs interface <sysfs_interface>`。
- *内核空间编程接å£ã€‚*
- :doc:`è¿™ </vm/damon/api>` 这是为内核空间程åºå‘˜å‡†å¤‡çš„。使用它,用户å¯ä»¥é€šè¿‡ä¸ºä½ ç¼–写内
+ :doc:`è¿™ </mm/damon/api>` 这是为内核空间程åºå‘˜å‡†å¤‡çš„。使用它,用户å¯ä»¥é€šè¿‡ä¸ºä½ ç¼–写内
核空间的DAMON应用程åºï¼Œæœ€çµæ´»æœ‰æ•ˆåœ°åˆ©ç”¨DAMONçš„æ¯ä¸€ä¸ªåŠŸèƒ½ã€‚你甚至å¯ä»¥ä¸ºå„ç§åœ°å€ç©ºé—´æ‰©å±•DAMON。
- 详细情况请å‚è€ƒæŽ¥å£ :doc:`文件 </vm/damon/api>`。
+ 详细情况请å‚è€ƒæŽ¥å£ :doc:`文件 </mm/damon/api>`。
sysfs接å£
=========
@@ -148,7 +148,7 @@ contexts/<N>/monitoring_attrs/
在 ``nr_regions`` 目录下,有两个文件分别用于DAMON监测区域的下é™å’Œä¸Šé™ï¼ˆ``min`` å’Œ ``max`` ),
这两个文件控制ç€ç›‘测的开销。你å¯ä»¥é€šè¿‡å‘这些文件的写入和读出æ¥è®¾ç½®å’ŒèŽ·å–这些值。
-关于间隔和监测区域范围的更多细节,请å‚考设计文件 (:doc:`/vm/damon/design`)。
+关于间隔和监测区域范围的更多细节,请å‚考设计文件 (:doc:`/mm/damon/design`)。
contexts/<N>/targets/
---------------------
@@ -210,6 +210,8 @@ schemes/<N>/
- ``pageout``: 为具有 ``MADV_PAGEOUT`` 的区域调用 ``madvise()`` 。
- ``hugepage``: 为带有 ``MADV_HUGEPAGE`` 的区域调用 ``madvise()`` 。
- ``nohugepage``: 为带有 ``MADV_NOHUGEPAGE`` 的区域调用 ``madvise()``。
+ - ``lru_prio``: 在其LRU列表上对区域进行优先排åºã€‚
+ - ``lru_deprio``: 对区域的LRU列表进行é™ä½Žä¼˜å…ˆå¤„ç†ã€‚
- ``stat``: 什么都ä¸åšï¼Œåªè®¡ç®—统计数æ®
schemes/<N>/access_pattern/
@@ -318,7 +320,7 @@ DAMON导出了八个文件, ``attrs``, ``target_ids``, ``init_regions``,
----
用户å¯ä»¥é€šè¿‡è¯»å–和写入 ``attrs`` 文件获得和设置 ``采样间隔`` 〠``èšé›†é—´éš”`` 〠``æ›´æ–°é—´éš”``
-以åŠç›‘测目标区域的最å°/最大数é‡ã€‚è¦è¯¦ç»†äº†è§£ç›‘测属性,请å‚考 `:doc:/vm/damon/design` 。例如,
+以åŠç›‘测目标区域的最å°/最大数é‡ã€‚è¦è¯¦ç»†äº†è§£ç›‘测属性,请å‚考 `:doc:/mm/damon/design` 。例如,
下é¢çš„命令将这些值设置为5msã€100msã€1000msã€10å’Œ1000,然åŽå†æ¬¡æ£€æŸ¥::
# cd <debugfs>/damon
diff --git a/Documentation/translations/zh_CN/admin-guide/reporting-issues.rst b/Documentation/translations/zh_CN/admin-guide/reporting-issues.rst
index 6b4988da2c5a..59e51e3539b4 100644
--- a/Documentation/translations/zh_CN/admin-guide/reporting-issues.rst
+++ b/Documentation/translations/zh_CN/admin-guide/reporting-issues.rst
@@ -1,13 +1,6 @@
.. SPDX-License-Identifier: (GPL-2.0+ OR CC-BY-4.0)
-..
- If you want to distribute this text under CC-BY-4.0 only, please use 'The
- Linux kernel developers' for author attribution and link this as source:
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/admin-guide/reporting-issues.rst
-..
- Note: Only the content of this RST file as found in the Linux kernel sources
- is available under CC-BY-4.0, as versions of this text that were processed
- (for example by the kernel's build system) might contain content taken from
- files which use a more restrictive license.
+.. See the bottom of this file for additional redistribution information.
+
.. include:: ../disclaimer-zh_CN.rst
@@ -29,7 +22,9 @@
请æœç´¢ `LKML内核邮件列表 <https://lore.kernel.org/lkml/>`_ å’Œ
`Linux稳定版邮件列表 <https://lore.kernel.org/stable/>`_ 存档中匹é…的报告并
加入讨论。如果找ä¸åˆ°åŒ¹é…的报告,请安装该系列的最新版本。如果它ä»ç„¶å‡ºçŽ°é—®é¢˜ï¼Œ
-报告给稳定版邮件列表(stable@vger.kernel.org)。
+请报告给稳定版邮件列表(stable@vger.kernel.org)并抄é€å›žå½’邮件列表
+(regressions@lists.linux.dev);ç†æƒ³æƒ…况下,还å¯ä»¥æŠ„é€ç»´æŠ¤è€…和相关å­ç³»ç»Ÿçš„
+邮件列表。
在所有其他情况下,请尽å¯èƒ½çŒœæµ‹æ˜¯å“ªä¸ªå†…核部分导致了问题。查看MAINTAINERS文件,
了解开å‘人员希望如何得知问题,大多数情况下,报告问题都是通过电å­é‚®ä»¶å’ŒæŠ„é€
@@ -46,9 +41,10 @@
有使用附加模å—)。还è¦ç¡®ä¿å®ƒæ˜¯åœ¨ä¸€ä¸ªæ­£å¸¸çš„环境中构建和è¿è¡Œï¼Œå¹¶ä¸”在问题å‘生
之å‰æ²¡æœ‰è¢«æ±¡æŸ“(tainted)。
-在编写报告时,è¦æ¶µç›–与问题相关的所有信æ¯ï¼Œå¦‚使用的内核和å‘行版。在碰è§å›žå½’时,
-å°è¯•ç»™å‡ºå¼•å…¥å®ƒçš„更改的æ交ID,二分å¯ä»¥æ‰¾åˆ°å®ƒã€‚如果您åŒæ—¶é¢ä¸´Linux内核的多个
-问题,请分别报告æ¯ä¸ªé—®é¢˜ã€‚
+当你åŒæ—¶é¢ä¸´Linux内核的多个问题时,请分别报告。在编写报告时,è¦æ¶µç›–与问题
+相关的所有信æ¯ï¼Œå¦‚使用的内核和å‘行版。如果碰è§å›žå½’,请把报告抄é€å›žå½’邮件列表
+(regressions@lists.linux.dev)。也请试试用二分法找出æºå¤´ï¼›å¦‚æžœæˆåŠŸæ‰¾åˆ°ï¼Œè¯·
+在报告中写上它的æ交ID并抄é€sign-off-by链中的所有人。
一旦报告å‘出,请回答任何出现的问题,并尽å¯èƒ½åœ°æ供帮助。这包括通过ä¸æ—¶é‡æ–°
测试新版本并å‘é€çŠ¶æ€æ›´æ–°æ¥æŽ¨åŠ¨è¿›å±•ã€‚
@@ -156,9 +152,10 @@
存在问题,因为问题å¯èƒ½å·²ç»åœ¨é‚£é‡Œè¢«ä¿®å¤äº†ã€‚如果您第一次å‘现供应商内核的问题,
请检查已知最新版本的普通构建是å¦å¯ä»¥æ­£å¸¸è¿è¡Œã€‚
- * å‘Linux稳定版邮件列表å‘é€ä¸€ä¸ªç®€çŸ­çš„问题报告(stable@vger.kernel.org)。大致
- æ述问题,并解释如何å¤çŽ°ã€‚讲清楚首个出现问题的版本和最åŽä¸€ä¸ªå·¥ä½œæ­£å¸¸çš„版本。
- 然åŽç­‰å¾…进一步的指示。
+ * å‘Linux稳定版邮件列表å‘é€ä¸€ä¸ªç®€çŸ­çš„问题报告(stable@vger.kernel.org)并抄é€
+ Linux回归邮件列表(regressions@lists.linux.dev);如果你怀疑是由æŸå­ç³»ç»Ÿ
+ 引起的,请抄é€å…¶ç»´æŠ¤äººå‘˜å’Œå­ç³»ç»Ÿé‚®ä»¶åˆ—表。大致æ述问题,并解释如何å¤çŽ°ã€‚
+ 讲清楚首个出现问题的版本和最åŽä¸€ä¸ªå·¥ä½œæ­£å¸¸çš„版本。然åŽç­‰å¾…进一步的指示。
下é¢çš„å‚考章节部分详细解释了这些步骤中的æ¯ä¸€æ­¥ã€‚
@@ -296,17 +293,14 @@ Linus Torvalds和主è¦çš„Linux内核开å‘人员希望看到一些问题尽快å
报告过程中有一些“高优先级问题â€çš„处ç†ç•¥æœ‰ä¸åŒã€‚有三ç§æƒ…况符åˆæ¡ä»¶:回归ã€å®‰å…¨
问题和éžå¸¸ä¸¥é‡çš„问题。
-如果在旧版本的Linux内核中工作的东西ä¸èƒ½åœ¨æ–°ç‰ˆæœ¬çš„Linux内核中工作,或者æŸç§
-程度上在新版本的Linux内核中工作得更差,那么你就需è¦å¤„ç†â€œå›žå½’â€ã€‚因此,当一个
-在Linux 5.7中表现良好的WiFi驱动程åºåœ¨5.8中表现ä¸ä½³æˆ–根本ä¸èƒ½å·¥ä½œæ—¶ï¼Œè¿™æ˜¯ä¸€
-ç§å›žå½’。如果应用程åºåœ¨æ–°çš„内核中出现ä¸ç¨³å®šçš„现象,这也是一ç§å›žå½’,这å¯èƒ½æ˜¯
-由于内核和用户空间之间的接å£ï¼ˆå¦‚procfså’Œsysfs)å‘生ä¸å…¼å®¹çš„更改造æˆçš„。显著
-的性能é™ä½Žæˆ–功耗增加也å¯ä»¥ç§°ä¸ºå›žå½’。但是请记ä½:新内核需è¦ä½¿ç”¨ä¸Žæ—§å†…核相似的
-é…ç½®æ¥æž„建(å‚è§ä¸‹é¢å¦‚何实现这一点)。这是因为内核开å‘人员在实现新特性时有
-时无法é¿å…ä¸å…¼å®¹æ€§ï¼›ä½†æ˜¯ä¸ºäº†é¿å…回归,这些特性必须在构建é…置期间显å¼åœ°å¯ç”¨ã€‚
+如果æŸä¸ªåº”用程åºæˆ–实际用例在原先的Linux内核上è¿è¡Œè‰¯å¥½ï¼Œä½†åœ¨ä½¿ç”¨ç±»ä¼¼é…置编译的
+较新版本上效果更差ã€æˆ–者根本ä¸èƒ½ç”¨ï¼Œé‚£ä¹ˆä½ å°±éœ€è¦å¤„ç†å›žå½’问题。
+Documentation/admin-guide/reporting-regressions.rst 对此进行了更详细的解释。
+它还æ供了很多你å¯èƒ½æƒ³çŸ¥é“的关于回归的其他信æ¯ï¼›ä¾‹å¦‚,它解释了如何将您的问题
+添加到回归跟踪列表中,以确ä¿å®ƒä¸ä¼šè¢«å¿½ç•¥ã€‚
什么是安全问题留给您自己判断。在继续之å‰ï¼Œè¯·è€ƒè™‘阅读
-“Documentation/translations/zh_CN/admin-guide/security-bugs.rstâ€ï¼Œ
+Documentation/translations/zh_CN/admin-guide/security-bugs.rst ,
因为它æ供了如何最æ°å½“地处ç†å®‰å…¨é—®é¢˜çš„é¢å¤–细节。
当å‘生了完全无法接å—的糟糕事情时,此问题就是一个“éžå¸¸ä¸¥é‡çš„问题â€ã€‚例如,
@@ -390,7 +384,7 @@ Linux内核破å了它处ç†çš„æ•°æ®æˆ–æŸå了它è¿è¡Œçš„硬件。当内核
核未被污染,那么它应该以“Not infectedâ€ç»“æŸï¼›å¦‚果你看到“Tainted:â€ä¸”åŽè·Ÿä¸€äº›
空格和字æ¯ï¼Œé‚£å°±è¢«æ±¡æŸ“了。
-如果你的内核被污染了,请阅读“Documentation/translations/zh_CN/admin-guide/tainted-kernels.rstâ€
+如果你的内核被污染了,请阅读 Documentation/translations/zh_CN/admin-guide/tainted-kernels.rst
以找出原因。设法消除污染因素。通常是由以下三ç§å› ç´ ä¹‹ä¸€å¼•èµ·çš„:
1. å‘生了一个å¯æ¢å¤çš„错误(“kernel Oopsâ€ï¼‰ï¼Œå†…核污染了自己,因为内核知é“在
@@ -591,7 +585,8 @@ ath10k@lists.infradead.orgâ€ï¼Œå°†å¼•å¯¼æ‚¨åˆ°ath10k邮件列表的信æ¯é¡µï¼Œ
æœç´¢å¼•æ“Žï¼Œå¹¶æ·»åŠ ç±»ä¼¼â€œsite:lists.infadead.org/pipermail/ath10k/â€è¿™
æ ·çš„æœç´¢æ¡ä»¶ï¼Œè¿™ä¼šæŠŠç»“æžœé™åˆ¶åœ¨è¯¥é“¾æŽ¥ä¸­çš„档案。
-也请进一步æœç´¢ç½‘络ã€LKMLå’Œbugzilla.kernel.org网站。
+也请进一步æœç´¢ç½‘络ã€LKMLå’Œbugzilla.kernel.org网站。如果你的报告需è¦å‘é€åˆ°ç¼ºé™·
+跟踪器中,那么您å¯èƒ½è¿˜éœ€è¦æ£€æŸ¥å­ç³»ç»Ÿçš„邮件列表存档,因为å¯èƒ½æœ‰äººåªåœ¨é‚£é‡ŒæŠ¥å‘Šäº†å®ƒã€‚
有关如何æœç´¢ä»¥åŠåœ¨æ‰¾åˆ°åŒ¹é…报告时如何æ“作的详细信æ¯ï¼Œè¯·å‚阅上é¢çš„“æœç´¢çŽ°æœ‰æŠ¥å‘Š
(第一部分)â€ã€‚
@@ -802,10 +797,10 @@ Linux 首席开å‘者 Linus Torvalds 认为 Linux 内核永远ä¸åº”æ¶åŒ–,这
é‡çŽ°å®ƒã€‚
有一个å«åšâ€œäºŒåˆ†â€çš„过程å¯ä»¥æ¥å¯»æ‰¾å˜åŒ–,这在
-“Documentation/translations/zh_CN/admin-guide/bug-bisect.rstâ€æ–‡æ¡£ä¸­è¿›è¡Œäº†è¯¦ç»†
+Documentation/translations/zh_CN/admin-guide/bug-bisect.rst 文档中进行了详细
çš„æ述,这个过程通常需è¦ä½ æž„建å到二å个内核镜åƒï¼Œæ¯æ¬¡éƒ½å°è¯•åœ¨æž„建下一个镜åƒ
之å‰é‡çŽ°é—®é¢˜ã€‚是的,这需è¦èŠ±è´¹ä¸€äº›æ—¶é—´ï¼Œä½†ä¸ç”¨æ‹…心,它比大多数人想象的è¦å¿«å¾—多。
-多äºäº†â€œbinary search二进制æœç´¢â€ï¼Œè¿™å°†å¼•å¯¼ä½ åœ¨æºä»£ç ç®¡ç†ç³»ç»Ÿä¸­æ‰¾åˆ°å¯¼è‡´å›žå½’çš„æ交。
+多äºäº†â€œbinary search二分æœç´¢â€ï¼Œè¿™å°†å¼•å¯¼ä½ åœ¨æºä»£ç ç®¡ç†ç³»ç»Ÿä¸­æ‰¾åˆ°å¯¼è‡´å›žå½’çš„æ交。
一旦你找到它,就在网上æœç´¢å…¶ä¸»é¢˜ã€æ交ID和缩短的æ交ID(æ交IDçš„å‰12个字符)。
如果有的è¯ï¼Œè¿™å°†å¼•å¯¼æ‚¨æ‰¾åˆ°å…³äºŽå®ƒçš„现有报告。
@@ -823,10 +818,10 @@ Linux 首席开å‘者 Linus Torvalds 认为 Linux 内核永远ä¸åº”æ¶åŒ–,这
当处ç†å›žå½’问题时,请确ä¿ä½ æ‰€é¢ä¸´çš„问题真的是由内核引起的,而ä¸æ˜¯ç”±å…¶ä»–东西
引起的,如上文所述。
-在整个过程中,请记ä½ï¼šåªæœ‰å½“旧内核和新内核的é…置相似时,问题æ‰ç®—回归。最好
-的方法是:把é…置文件(``.config``)从旧的工作内核直接å¤åˆ¶åˆ°ä½ å°è¯•çš„æ¯ä¸ªæ–°å†…
-核版本。之åŽè¿è¡Œ ``make oldnoconfig`` æ¥è°ƒæ•´å®ƒä»¥é€‚应新版本的需è¦ï¼Œè€Œä¸å¯ç”¨
-任何新的功能,因为那些功能也å¯èƒ½å¯¼è‡´å›žå½’。
+在整个过程中,请记ä½ï¼šåªæœ‰å½“旧内核和新内核的é…置相似时,问题æ‰ç®—回归。这å¯ä»¥
+通过 ``make olddefconfig`` æ¥å®žçŽ°ï¼Œè¯¦ç»†è§£é‡Šå‚è§
+Documentation/admin-guide/reporting-regressions.rst ;它还æ供了大é‡å…¶ä»–您
+å¯èƒ½å¸Œæœ›äº†è§£çš„有关回归的信æ¯ã€‚
撰写并å‘é€æŠ¥å‘Š
@@ -959,11 +954,19 @@ Linux 首席开å‘者 Linus Torvalds 认为 Linux 内核永远ä¸åº”æ¶åŒ–,这
**éžå¸¸ä¸¥é‡çš„缺陷** :确ä¿åœ¨ä¸»é¢˜æˆ–å·¥å•æ ‡é¢˜ä»¥åŠç¬¬ä¸€æ®µä¸­æ˜Žæ˜¾æ ‡å‡º severeness
(éžå¸¸ä¸¥é‡çš„)。
-**回归** :如果问题是一个回归,请在邮件的主题或缺陷跟踪器的标题中添加
-[REGRESSION]。如果您没有进行二分,请至少注明您测试的最新主线版本(比如 5.7)
-和出现问题的最新版本(比如 5.8)。如果您æˆåŠŸåœ°è¿›è¡Œäº†äºŒåˆ†ï¼Œè¯·æ³¨æ˜Žå¯¼è‡´å›žå½’
-çš„æ交ID和主题。也请添加该å˜æ›´çš„作者到你的报告中;如果您需è¦å°†æ‚¨çš„缺陷æ交
-到缺陷跟踪器中,请将报告以ç§äººé‚®ä»¶çš„å½¢å¼è½¬å‘给他,并注明报告æ交地点。
+**回归** :报告的主题应以“[REGRESSION]â€å¼€å¤´ã€‚
+
+如果您æˆåŠŸç”¨äºŒåˆ†æ³•å®šä½äº†é—®é¢˜ï¼Œè¯·ä½¿ç”¨å¼•å…¥å›žå½’之更改的标题作为主题的第二部分。
+请在报告中写明“罪é­ç¥¸é¦–â€çš„æ交ID。如果未能æˆåŠŸäºŒåˆ†ï¼Œè¯·åœ¨æŠ¥å‘Šä¸­è®²æ˜Žæœ€åŽä¸€ä¸ª
+正常工作的版本(例如5.7)和最先å‘生问题的版本(例如5.8-rc1)。
+
+通过邮件å‘é€æŠ¥å‘Šæ—¶ï¼Œè¯·æŠ„é€Linux回归邮件列表(regressions@lists.linux.dev)。
+如果报告需è¦æ交到æŸä¸ªweb追踪器,请继续æ交;并在æ交åŽï¼Œé€šè¿‡é‚®ä»¶å°†æŠ¥å‘Šè½¬å‘
+至回归列表;抄é€ç›¸å…³å­ç³»ç»Ÿçš„维护人员和邮件列表。请确ä¿æŠ¥å‘Šæ˜¯å†…è”转å‘的,ä¸è¦
+把它作为附件。å¦å¤–请在顶部添加一个简短的说明,在那里写上工å•çš„网å€ã€‚
+
+在邮寄或转å‘报告时,如果æˆåŠŸäºŒåˆ†ï¼Œéœ€è¦å°†â€œç½ªé­ç¥¸é¦–â€çš„作者添加到收件人中;åŒæ—¶
+抄é€signed-off-by链中的æ¯ä¸ªäººï¼Œæ‚¨å¯ä»¥åœ¨æ交消æ¯çš„末尾找到。
**安全问题** :对于这ç§é—®é¢˜ï¼Œä½ å°†å¿…须评估:如果细节被公开披露,是å¦ä¼šå¯¹å…¶ä»–
用户产生短期风险。如果ä¸ä¼šï¼Œåªéœ€æŒ‰ç…§æ‰€è¿°ç»§ç»­æŠ¥å‘Šé—®é¢˜ã€‚如果有此风险,你需è¦
@@ -980,7 +983,7 @@ Linux 首席开å‘者 Linus Torvalds 认为 Linux 内核永远ä¸åº”æ¶åŒ–,这
报告,请将报告的文本转å‘到这些地å€ï¼›ä½†è¯·åœ¨æŠ¥å‘Šçš„顶部加上注释,表明您æ交了
报告,并附上工å•é“¾æŽ¥ã€‚
-更多信æ¯è¯·å‚è§â€œDocumentation/translations/zh_CN/admin-guide/security-bugs.rstâ€ã€‚
+更多信æ¯è¯·å‚è§ Documentation/translations/zh_CN/admin-guide/security-bugs.rst 。
å‘布报告åŽçš„责任
@@ -1173,14 +1176,18 @@ FLOSS 问题报告的人看,询问他们的æ„è§ã€‚åŒæ—¶å¾æ±‚他们关于å¦
报告回归
~~~~~~~~~~
- *å‘Linux稳定版邮件列表å‘é€ä¸€ä¸ªç®€çŸ­çš„问题报告(stable@vger.kernel.org)。
- 大致æ述问题,并解释如何å¤çŽ°ã€‚讲清楚首个出现问题的版本和最åŽä¸€ä¸ªå·¥ä½œæ­£å¸¸
- 的版本。然åŽç­‰å¾…进一步的指示。*
+ *å‘Linux稳定版邮件列表å‘é€ä¸€ä¸ªç®€çŸ­çš„问题报告(stable@vger.kernel.org)并
+ 抄é€Linux回归邮件列表(regressions@lists.linux.dev);如果你怀疑是由æŸ
+ å­ç³»ç»Ÿå¼•èµ·çš„,请抄é€å…¶ç»´æŠ¤äººå‘˜å’Œå­ç³»ç»Ÿé‚®ä»¶åˆ—表。大致æ述问题,并解释如
+ 何å¤çŽ°ã€‚讲清楚首个出现问题的版本和最åŽä¸€ä¸ªå·¥ä½œæ­£å¸¸çš„版本。然åŽç­‰å¾…进一
+ 步的指示。*
当报告在稳定版或长期支æŒå†…核线内å‘生的回归(例如在从5.10.4更新到5.10.5时),
-一份简短的报告足以快速报告问题。因此åªéœ€è¦ç²—略的æ述。
+一份简短的报告足以快速报告问题。因此åªéœ€å‘稳定版和回归邮件列表å‘é€ç²—略的æè¿°ï¼›
+ä¸è¿‡å¦‚果你怀疑æŸå­ç³»ç»Ÿå¯¼è‡´æ­¤é—®é¢˜çš„è¯ï¼Œè¯·ä¸€å¹¶æŠ„é€å…¶ç»´æŠ¤äººå‘˜å’Œå­ç³»ç»Ÿé‚®ä»¶åˆ—表,
+这会加快进程。
-但是请注æ„,如果您能够指明引入问题的确切版本,这将对开å‘人员有很大帮助。因此
+请注æ„,如果您能够指明引入问题的确切版本,这将对开å‘人员有很大帮助。因此
如果有时间的è¯ï¼Œè¯·å°è¯•ä½¿ç”¨æ™®é€šå†…核找到该版本。让我们å‡è®¾å‘行版å‘布Linux内核
5.10.5到5.10.8çš„æ›´æ–°æ—¶å‘生了故障。那么按照上é¢çš„指示,去检查该版本线中的最新
内核,比如5.10.9。如果问题出现,请å°è¯•æ™®é€š5.10.5,以确ä¿ä¾›åº”商应用的补ä¸ä¸ä¼š
@@ -1190,7 +1197,9 @@ FLOSS 问题报告的人看,询问他们的æ„è§ã€‚åŒæ—¶å¾æ±‚他们关于å¦
å‰ä¸€æ®µåŸºæœ¬ç²—略地概述了“二分â€æ–¹æ³•ã€‚一旦报告出æ¥ï¼Œæ‚¨å¯èƒ½ä¼šè¢«è¦æ±‚åšä¸€ä¸ªæ­£ç¡®çš„
报告,因为它å…许精确地定ä½å¯¼è‡´é—®é¢˜çš„确切更改(然åŽå¾ˆå®¹æ˜“被æ¢å¤ä»¥å¿«é€Ÿä¿®å¤é—®é¢˜ï¼‰ã€‚
因此如果时间å…许,考虑立å³è¿›è¡Œé€‚当的二分。有关如何详细信æ¯ï¼Œè¯·å‚阅“对回归的
-特别关照â€éƒ¨åˆ†å’Œæ–‡æ¡£â€œDocumentation/translations/zh_CN/admin-guide/bug-bisect.rstâ€ã€‚
+特别关照â€éƒ¨åˆ†å’Œæ–‡æ¡£ Documentation/translations/zh_CN/admin-guide/bug-bisect.rst 。
+如果æˆåŠŸäºŒåˆ†çš„è¯ï¼Œè¯·å°†â€œç½ªé­ç¥¸é¦–â€çš„作者添加到收件人中;åŒæ—¶æŠ„é€æ‰€æœ‰åœ¨
+signed-off-by链中的人,您å¯ä»¥åœ¨æ交消æ¯çš„末尾找到。
“报告仅在旧内核版本线中å‘生的问题â€çš„å‚考
@@ -1207,7 +1216,7 @@ FLOSS 问题报告的人看,询问他们的æ„è§ã€‚åŒæ—¶å¾æ±‚他们关于å¦
å³ä½¿æ˜¯å¾®å°çš„ã€çœ‹ä¼¼æ˜Žæ˜¾çš„代ç å˜åŒ–,有时也会带æ¥æ–°çš„ã€å®Œå…¨æ„想ä¸åˆ°çš„问题。稳
定版和长期支æŒå†…核的维护者éžå¸¸æ¸…楚这一点,因此他们åªå¯¹è¿™äº›å†…核进行符åˆ
-“Documentation/translations/zh_CN/process/stable-kernel-rules.rstâ€ä¸­æ‰€åˆ—出的
+Documentation/translations/zh_CN/process/stable-kernel-rules.rst 中所列出的
规则的修改。
å¤æ‚或有风险的修改ä¸ç¬¦åˆæ¡ä»¶ï¼Œå› æ­¤åªèƒ½åº”用于主线。其他的修å¤å¾ˆå®¹æ˜“被回溯到
@@ -1333,3 +1342,27 @@ FLOSS 问题报告的人看,询问他们的æ„è§ã€‚åŒæ—¶å¾æ±‚他们关于å¦
å‘ Linux 内核开å‘者报告问题是很难的:这个文档的长度和å¤æ‚性以åŠå­—里行间的内
涵都说明了这一点。但目å‰å°±æ˜¯è¿™æ ·äº†ã€‚这篇文字的主è¦ä½œè€…希望通过记录现状æ¥ä¸º
以åŽæ”¹å–„è¿™ç§çŠ¶å†µæ‰“下一些基础。
+
+
+..
+ end-of-content
+..
+ This English version of this document is maintained by Thorsten Leemhuis
+ <linux@leemhuis.info>. If you spot a typo or small mistake, feel free to
+ let him know directly and he'll fix it. For translation problems, please
+ contact with translators. You are free to do the same in a mostly informal
+ way if you want to contribute changes to the text, but for copyright
+ reasons please CC linux-doc@vger.kernel.org and "sign-off" your
+ contribution as Documentation/process/submitting-patches.rst outlines in
+ the section "Sign your work - the Developer's Certificate of Origin".
+..
+ This text is available under GPL-2.0+ or CC-BY-4.0, as stated at the top
+ of the file. If you want to distribute this text under CC-BY-4.0 only,
+ please use "The Linux kernel developers" for author attribution and link
+ this as source:
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/admin-guide/reporting-issues.rst
+..
+ Note: Only the content of this RST file as found in the Linux kernel sources
+ is available under CC-BY-4.0, as versions of this text that were processed
+ (for example by the kernel's build system) might contain content taken from
+ files which use a more restrictive license.
diff --git a/Documentation/translations/zh_CN/admin-guide/reporting-regressions.rst b/Documentation/translations/zh_CN/admin-guide/reporting-regressions.rst
new file mode 100644
index 000000000000..c0461ee855bc
--- /dev/null
+++ b/Documentation/translations/zh_CN/admin-guide/reporting-regressions.rst
@@ -0,0 +1,370 @@
+.. SPDX-License-Identifier: (GPL-2.0+ OR CC-BY-4.0)
+.. ã€é‡åˆ†å‘ä¿¡æ¯å‚è§æœ¬æ–‡ä»¶ç»“尾】
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/admin-guide/reporting-regressions.rst
+
+:译者:
+
+ å´æƒ³æˆ Wu XiangCheng <bobwxc@email.cn>
+
+
+============
+报告回归问题
+============
+
+“*我们拒ç»å‡ºçŽ°å›žå½’*â€æ˜¯Linux内核开å‘的首è¦è§„则;Linuxçš„å‘起者和领军开å‘者Linus
+Torvalds立下了此规则并确ä¿å®ƒè¢«è½å®žã€‚
+
+本文档æ述了这æ¡è§„则对用户的æ„义,以åŠLinux内核开å‘模型如何确ä¿è§£å†³æ‰€æœ‰è¢«æŠ¥å‘Š
+的回归;关于内核开å‘者如何处ç†çš„æ–¹é¢å‚è§ Documentation/process/handling-regressions.rst 。
+
+
+本文é‡ç‚¹ï¼ˆäº¦å³â€œå¤ªé•¿ä¸çœ‹â€ï¼‰
+==========================
+
+#. 如果æŸç¨‹åºåœ¨åŽŸå…ˆçš„Linux内核上è¿è¡Œè‰¯å¥½ï¼Œä½†åœ¨è¾ƒæ–°ç‰ˆæœ¬ä¸Šæ•ˆæžœæ›´å·®ã€æˆ–者根本ä¸
+ 能用,那么你就碰è§å›žå½’问题了。注æ„,新内核需è¦ä½¿ç”¨ç±»ä¼¼é…置编译;更多相关细
+ 节å‚è§ä¸‹æ–¹ã€‚
+
+#. 按照 Documentation/translations/zh_CN/admin-guide/reporting-issues.rst 中
+ 所说的报告你的问题,该文档已ç»åŒ…å«äº†æ‰€æœ‰å…³äºŽå›žå½’çš„é‡è¦æ–¹é¢ï¼Œä¸ºäº†æ–¹ä¾¿èµ·è§ä¹Ÿ
+ å¤åˆ¶åˆ°äº†ä¸‹é¢ã€‚两个é‡ç‚¹ï¼šåœ¨æŠ¥å‘Šä¸»é¢˜ä¸­ä½¿ç”¨â€œ[REGRESSION]â€å¼€å¤´å¹¶æŠ„é€æˆ–转å‘到
+ `回归邮件列表 <https://lore.kernel.org/regressions/>`_
+ (regressions@lists.linux.dev)。
+
+#. å¯é€‰ä½†æ˜¯å»ºè®®ï¼šåœ¨å‘é€æˆ–转å‘报告时,指明该回归å‘生的起点,以便Linux内核回归
+ 追踪机器人“regzbotâ€å¯ä»¥è¿½è¸ªæ­¤é—®é¢˜::
+
+ #regzbot introduced v5.13..v5.14-rc1
+
+
+与用户相关的所有Linux内核回归细节
+=================================
+
+
+基本é‡ç‚¹
+--------
+
+
+什么是“回归â€ä»¥åŠä»€ä¹ˆæ˜¯â€œæ— å›žå½’规则â€ï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+如果æŸç¨‹åº/实例在原先的Linux内核上è¿è¡Œè‰¯å¥½ï¼Œä½†åœ¨è¾ƒæ–°ç‰ˆæœ¬ä¸Šæ•ˆæžœæ›´å·®ã€æˆ–者根本
+ä¸èƒ½ç”¨ï¼Œé‚£ä¹ˆä½ å°±ç¢°è§å›žå½’问题了。“无回归规则â€ä¸å…许出现这ç§æƒ…况。如果å¶ç„¶å‘
+生了,导致问题的开å‘者应当迅速修å¤é—®é¢˜ã€‚
+
+也就是说,若Linux 5.13中的WiFi驱动程åºè¿è¡Œè‰¯å¥½ï¼Œä½†æ˜¯åœ¨5.14版本上å´ä¸èƒ½ç”¨ã€é€Ÿ
+度明显å˜æ…¢æˆ–出现错误,那就出现了回归。如果æŸæ­£å¸¸å·¥ä½œçš„应用程åºçªç„¶åœ¨æ–°å†…核上
+出现ä¸ç¨³å®šï¼Œè¿™ä¹Ÿæ˜¯å›žå½’;这些问题å¯èƒ½æ˜¯ç”±äºŽprocfsã€sysfs或Linuxæ供给用户空间
+软件的许多其他接å£ä¹‹ä¸€çš„å˜åŒ–。但请记ä½ï¼Œå‰è¿°ä¾‹å­ä¸­çš„5.14需è¦ä½¿ç”¨ç±»ä¼¼äºŽ5.13çš„
+é…置构建。这å¯ä»¥ç”¨ ``make olddefconfig`` 实现,详细解释è§ä¸‹ã€‚
+
+注æ„本节第一å¥è¯ä¸­çš„“实例â€ï¼šå³ä½¿å¼€å‘者需è¦éµå¾ªâ€œæ— å›žå½’â€è§„则,但ä»å¯è‡ªç”±åœ°æ”¹
+å˜å†…核的任何方é¢ï¼Œç”šè‡³æ˜¯å¯¼å‡ºåˆ°ç”¨æˆ·ç©ºé—´çš„API或ABI,åªè¦åˆ«ç ´å现有的应用程åºæˆ–
+用例。
+
+还需注æ„,“无回归â€è§„则åªé™åˆ¶å†…æ ¸æ供给用户空间的接å£ã€‚它ä¸é€‚用于内核内部接
+å£ï¼Œæ¯”如一些外部开å‘的驱动程åºç”¨æ¥æ’入钩å­åˆ°å†…核的模å—API。
+
+如何报告回归?
+~~~~~~~~~~~~~~
+
+åªéœ€æŒ‰ç…§ Documentation/translations/zh_CN/admin-guide/reporting-issues.rst 中
+所说的报告你的问题,该文档已ç»åŒ…å«äº†è¦ç‚¹ã€‚下é¢å‡ ç‚¹æ¦‚述了一下åªåœ¨å›žå½’中é‡è¦çš„
+æ–¹é¢ï¼š
+
+ * 在检查å¯åŠ å…¥è®¨è®ºçš„现有报告时,别忘了æœç´¢ `Linux回归邮件列表
+ <https://lore.kernel.org/regressions/>`_ å’Œ `regzbot网页界é¢
+ <https://linux-regtracking.leemhuis.info/regzbot/>`_ 。
+
+ * 在报告主题的开头加上“[REGRESSION]â€ã€‚
+
+ * 在你的报告中明确最åŽä¸€ä¸ªæ­£å¸¸å·¥ä½œçš„内核版本和首个出问题的版本。如若å¯èƒ½ï¼Œ
+ 用二分法å°è¯•æ‰¾å‡ºå¯¼è‡´å›žå½’çš„å˜æ›´ï¼Œæ›´å¤šç»†èŠ‚è§ä¸‹ã€‚
+
+ * 记得把报告å‘到Linux回归邮件列表(regressions@lists.linux.dev)。
+
+ * 如果通过邮件报告回归,请抄é€å›žå½’列表。
+
+ * 如果你使用æŸäº›ç¼ºé™·è¿½è¸ªå™¨æŠ¥å‘Šå›žå½’,请通过邮件转å‘å·²æ交的报告到回归列表,
+ 并抄é€ç»´æŠ¤è€…以åŠå‡ºé—®é¢˜çš„相关å­ç³»ç»Ÿçš„邮件列表。
+
+ 如果是稳定版或长期支æŒç‰ˆç³»åˆ—(如v5.15.3…v5.15.5)的回归,请记得抄é€
+ `Linux稳定版邮件列表 <https://lore.kernel.org/stable/>`_ (stable@vger.kernel.org)。
+
+ 如果你æˆåŠŸåœ°æ‰§è¡Œäº†äºŒåˆ†ï¼Œè¯·æŠ„é€è‚‡äº‹æ交的信æ¯ä¸­æ‰€æœ‰ç­¾äº†â€œSigned-off-by:â€çš„人。
+
+在抄é€ä½ çš„报告到列表时,也请记得通知å‰è¿°çš„Linux内核回归追踪机器人。åªéœ€åœ¨é‚®ä»¶
+中包å«å¦‚下片段::
+
+ #regzbot introduced: v5.13..v5.14-rc1
+
+Regzbot会就将你的邮件视为在æŸä¸ªç‰¹å®šç‰ˆæœ¬åŒºé—´çš„回归报告。上例中å³linux v5.13ä»
+然正常,而Linux 5.14-rc1是首个您é‡åˆ°é—®é¢˜çš„版本。如果你执行了二分以查找导致回
+å½’çš„æ交,请使用指定肇事æ交的id代替::
+
+ #regzbot introduced: 1f2e3d4c5d
+
+添加这样的“regzbot命令â€å¯¹ä½ æ˜¯æœ‰å¥½å¤„的,它会确ä¿æŠ¥å‘Šä¸ä¼šè¢«å¿½ç•¥ã€‚如果你çœç•¥äº†
+它,Linux内核的回归跟踪者会把你的回归告诉regzbot,åªè¦ä½ å‘é€äº†ä¸€ä¸ªå‰¯æœ¬åˆ°å›žå½’
+邮件列表。但是回归跟踪者åªæœ‰ä¸€ä¸ªäººï¼Œæœ‰æ—¶ä¸å¾—ä¸ä¼‘æ¯æˆ–甚至å¶å°”享å—å¯ä»¥è¿œç¦»ç”µè„‘
+的时光(å¬èµ·æ¥å¾ˆç–¯ç‹‚)。因此,ä¾èµ–此人手动将回归添加到 `已追踪且尚未解决的
+Linux内核回归列表 <https://linux-regtracking.leemhuis.info/regzbot/>`_ 和
+regzbotå‘é€çš„æ¯å‘¨å›žå½’报告,å¯èƒ½ä¼šå‡ºçŽ°å»¶è¿Ÿã€‚ 这样的延误会导致Linus Torvalds
+在决定“继续开å‘还是å‘布新版本?â€æ—¶å¿½ç•¥ä¸¥é‡çš„回归。
+
+真的修å¤äº†æ‰€æœ‰çš„回归å—?
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+几乎所有都是,åªè¦å¼•èµ·é—®é¢˜çš„å˜æ›´ï¼ˆè‚‡äº‹æ交)被å¯é å®šä½ã€‚也有些回归å¯ä»¥ä¸ç”¨è¿™
+样,但通常是必须的。
+
+è°éœ€è¦æ‰¾å‡ºå›žå½’的根本原因?
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+å—å½±å“代ç åŒºåŸŸçš„å¼€å‘者应该自行å°è¯•å®šä½é—®é¢˜æ‰€åœ¨ã€‚但仅é ä»–们的努力往往是ä¸å¯
+能åšåˆ°çš„,很多问题åªå‘生在开å‘者的无法接触的其他特定外部环境中——例如特定的
+硬件平å°ã€å›ºä»¶ã€Linuxå‘行版ã€ç³»ç»Ÿçš„é…置或应用程åºã€‚这就是为什么最终往往是报
+告者定ä½è‚‡äº‹æ交;有时用户甚至需è¦å†è¿è¡Œé¢å¤–测试以查明确切的根本原因。开å‘
+者应该æ供建议和å¯èƒ½çš„帮助,以使普通用户更容易完æˆè¯¥æµç¨‹ã€‚
+
+如何找到罪é­ç¥¸é¦–?
+~~~~~~~~~~~~~~~~~~
+
+如 Documentation/translations/zh_CN/admin-guide/reporting-issues.rst (简è¦ï¼‰
+和 Documentation/translations/zh_CN/admin-guide/bug-bisect.rst (详细)中所
+述,执行二分。å¬èµ·æ¥å·¥ä½œé‡å¾ˆå¤§ï¼Œä½†å¤§éƒ¨åˆ†æƒ…况下很快就能找到罪é­ç¥¸é¦–。如果这很
+困难或å¯é åœ°é‡çŽ°é—®é¢˜å¾ˆè€—时,请考虑与其他å—å½±å“的用户åˆä½œï¼Œä¸€èµ·ç¼©å°æœç´¢èŒƒå›´ã€‚
+
+当出现回归时我å¯ä»¥å‘è°å¯»æ±‚建议?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+å‘é€é‚®ä»¶åˆ°å›žå½’邮件列表(regressions@lists.linux.dev)åŒæ—¶æŠ„é€Linux内核的回归
+跟踪者(regressions@leemhuis.info);如果问题需è¦ä¿å¯†å¤„ç†ï¼Œå¯ä»¥çœç•¥åˆ—表。
+
+
+关于回归的更多细节
+------------------
+
+
+“无回归规则â€çš„目标是什么?
+~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+用户应该放心å‡çº§å†…核版本,而ä¸å¿…担心有程åºå¯èƒ½å´©æºƒã€‚这符åˆå†…核开å‘者的利益,
+å¯ä»¥ä½¿æ›´æ–°æœ‰å¸å¼•åŠ›ï¼šä»–们ä¸å¸Œæœ›ç”¨æˆ·åœç•™åœ¨åœæ­¢ç»´æŠ¤æˆ–超过一年åŠçš„稳定/长期Linux
+版本系列上。这也符åˆæ‰€æœ‰äººçš„利益,因为 `那些系列å¯èƒ½å«æœ‰å·²çŸ¥çš„缺陷ã€å®‰å…¨é—®é¢˜
+或其他åŽç»­ç‰ˆæœ¬å·²ç»ä¿®å¤çš„问题
+<http://www.kroah.com/log/blog/2018/08/24/what-stable-kernel-should-i-use/>`_ 。
+此外,内核开å‘者希望使用户测试最新的预å‘行版或常规å‘行版å˜å¾—简å•è€Œæœ‰å¸å¼•åŠ›ã€‚
+è¿™åŒæ ·ç¬¦åˆæ‰€æœ‰äººçš„利益,如果新版本出æ¥åŽå¾ˆå¿«å°±æœ‰ç›¸å…³æŠ¥å‘Šï¼Œä¼šä½¿è¿½è¸ªå’Œä¿®å¤é—®é¢˜
+更容易。
+
+实际中“无回归â€è§„则真的å¯è¡Œå—?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+è¿™ä¸æ˜¯å¥çŽ©ç¬‘è¯ï¼Œè¯·è§Linux创建者和主è¦å¼€å‘人员Linus Torvalds在邮件列表中的许
+多å‘言,其中一些在 Documentation/process/handling-regressions.rst 中被引用。
+
+此规则的例外情况æžä¸ºç½•è§ï¼›ä¹‹å‰å½“å¼€å‘者认为æŸä¸ªç‰¹å®šçš„情况有必è¦æ´å¼•ä¾‹å¤–时,
+基本都被è¯æ˜Žé”™äº†ã€‚
+
+è°æ¥ç¡®ä¿â€œæ— å›žå½’â€è¢«è½å®žï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+照看和支撑树的å­ç³»ç»Ÿç»´æŠ¤è€…应该关心这一点——例如,Linus Torvalds之于主线,
+Greg Kroah-Hartman等人之于å„ç§ç¨³å®š/长期系列。
+
+他们都得到了别人的帮助,以确ä¿å›žå½’报告ä¸ä¼šè¢«é—æ¼ã€‚其中之一是Thorsten
+Leemhuis,他目å‰æ‹…ä»»Linux内核的“回归跟踪者â€ï¼›ä¸ºäº†åšå¥½è¿™é¡¹å·¥ä½œï¼Œä»–使用了
+regzbot——Linux内核回归跟踪机器人。所以这就是为什么è¦æŠ„é€æˆ–转å‘你的报告到
+回归邮件列表æ¥é€šçŸ¥è¿™äº›äººï¼Œå·²ç»æœ€å¥½åœ¨ä½ çš„邮件中包å«â€œregzbot命令â€æ¥ç«‹å³è¿½è¸ªå®ƒã€‚
+
+回归通常多久能修å¤ï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~
+
+å¼€å‘者应该尽快修å¤ä»»ä½•è¢«æŠ¥å‘Šçš„回归,以æä¾›åŠæ—¶ä¸ºå—å½±å“的用户æ供解决方案,并
+防止更多用户é‡åˆ°é—®é¢˜ï¼›ç„¶è€Œï¼Œå¼€å‘人员需è¦èŠ±è¶³å¤Ÿçš„时间和注æ„力确ä¿å›žå½’ä¿®å¤ä¸ä¼š
+造æˆé¢å¤–çš„æŸå®³ã€‚
+
+因此,答案å–决于å„ç§å› ç´ ï¼Œå¦‚回归的影å“ã€å­˜åœ¨æ—¶é•¿æˆ–出现于哪个Linux版本系列。
+但最终,大多数的回归应该在两周内修å¤ã€‚
+
+当问题å¯ä»¥é€šè¿‡å‡çº§æŸäº›è½¯ä»¶è§£å†³æ—¶ï¼Œæ˜¯å›žå½’å—?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+基本都是。如果开å‘人员告诉您其他情况,请咨询上述回归跟踪者。
+
+当新内核å˜æ…¢æˆ–能耗增加,是回归å—?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+是的,但有一些差别。在微型基准测试中å˜æ…¢5%ä¸å¤ªå¯èƒ½è¢«è§†ä¸ºå›žå½’,除éžå®ƒä¹Ÿä¼šå¯¹
+广泛基准测试的结果产生超过1%çš„å½±å“。如果有疑问,请寻求建议。
+
+当更新Linux时外部内核模å—崩溃了,是回归å—?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ä¸ï¼Œå› ä¸ºâ€œæ— å›žå½’â€è§„则仅é™äºŽLinux内核æ供给用户空间的接å£å’ŒæœåŠ¡ã€‚因此,它ä¸åŒ…括
+构建或è¿è¡Œå¤–部开å‘的内核模å—,因为它们在内核空间中è¿è¡Œä¸ŽæŒ‚进内核使用的内部接
+å£å¶å°”会å˜åŒ–。
+
+如何处ç†å®‰å…¨ä¿®å¤å¼•èµ·çš„回归?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+在æžä¸ºç½•è§çš„情况下,安全问题无法在ä¸å¼•èµ·å›žå½’的情况下修å¤ï¼›è¿™äº›ä¿®å¤éƒ½è¢«æ”¾å¼ƒäº†ï¼Œ
+因为它们终究会引起问题。幸è¿çš„是这ç§ä¸¤éš¾å¢ƒåœ°åŸºæœ¬éƒ½å¯ä»¥é¿å…,å—å½±å“区域的主è¦
+å¼€å‘者以åŠLinus Torvalds本人通常都会努力在ä¸å¼•å…¥å›žå½’的情况下解决安全问题。
+
+如果你ä»ç„¶é¢ä¸´æ­¤ç§æƒ…况,请查看邮件列表档案是å¦æœ‰äººå°½åŠ›é¿å…过回归。如果没有,
+请报告它;如有疑问,请如上所述寻求建议。
+
+当修å¤å›žå½’æ—¶ä¸å¯é¿å…会引入å¦ä¸€ä¸ªï¼Œå¦‚何处ç†ï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+很é—憾这ç§äº‹ç¡®å®žä¼šå‡ºçŽ°ï¼Œä½†å¹¸è¿çš„是并ä¸ç»å¸¸å‡ºçŽ°ï¼›å¦‚æžœå‘生了,å—å½±å“代ç åŒºçš„资
+深开å‘者应当调查该问题以找到é¿å…回归的解决方法,至少é¿å…它们的影å“。如果你é‡
+到这样的情况,如上所述:检查之å‰çš„讨论是å¦æœ‰äººå·²ç»å°½äº†æœ€å¤§åŠªåŠ›ï¼Œå¦‚有疑问请寻
+求建议。
+
+å°æ示:如果人们在æ¯ä¸ªå¼€å‘周期中定期给出主线预å‘布(å³v5.15-rc1或-rc3)以供
+测试,则å¯ä»¥é¿å…è¿™ç§æƒ…况。为了更好地解释,å¯ä»¥è®¾æƒ³ä¸€ä¸ªåœ¨Linux v5.14å’Œv5.15-rc1
+之间集æˆçš„更改,该更改导致了回归,但åŒæ—¶æ˜¯åº”用于5.15-rc1的其他改进的强ä¾èµ–。
+如果有人在5.15å‘布之å‰å°±å‘现并报告了这个问题,那么所有更改都å¯ä»¥ç›´æŽ¥æ’¤é”€ï¼Œä»Ž
+而解决回归问题。而就在几天或几周åŽï¼Œæ­¤è§£å†³æ–¹æ¡ˆå˜æˆäº†ä¸å¯èƒ½ï¼Œå› ä¸ºä¸€äº›è½¯ä»¶å¯èƒ½
+å·²ç»å¼€å§‹ä¾èµ–于åŽç»­æ›´æ”¹ä¹‹ä¸€ï¼šæ’¤é”€æ‰€æœ‰æ›´æ”¹å°†å¯¼è‡´ä¸Šè¿°ç”¨æˆ·è½¯ä»¶å‡ºçŽ°å›žå½’,这是ä¸å¯
+接å—的。
+
+若我所ä¾èµ–的功能在数月å‰è¢«ç§»é™¤äº†ï¼Œæ˜¯å›žå½’å—?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+是的,但如å‰èŠ‚所述,通常很难修å¤æ­¤ç±»å›žå½’。因此需è¦é€æ¡ˆå¤„ç†ã€‚这也是定期测试主
+线预å‘布对所有人有好处的å¦ä¸€ä¸ªåŽŸå› ã€‚
+
+如果我似乎是唯一å—å½±å“的人,是å¦ä»é€‚用“无回归â€è§„则?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+适用,但仅é™äºŽå®žé™…使用:Linuxå¼€å‘人员希望能够自由地å–消那些åªèƒ½åœ¨é˜æ¥¼å’Œåšç‰©
+馆中找到的硬件的支æŒã€‚
+
+请注æ„,有时为了å–得进展,ä¸å¾—ä¸å‡ºçŽ°å›žå½’——åŽè€…也是防止Linuxåœæ»žä¸å‰æ‰€å¿…需
+的。因此如果回归所影å“的用户很少,那么为了他们和其他人更大的利益,还是让事情
+过去å§ã€‚尤其是存在æŸç§è§„é¿å›žå½’的简å•æ–¹æ³•ï¼Œä¾‹å¦‚更新一些软件或者使用专门为此目
+的创建的内核å‚数。
+
+回归规则是å¦ä¹Ÿé€‚用于staging树中的代ç ï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ä¸ï¼Œå‚è§ `适用于所有staging代ç é…置选项的帮助文本
+<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/staging/Kconfig>`_ ,
+其早已声明::
+
+ 请注æ„:这些驱动正在积æžå¼€å‘中,å¯èƒ½æ— æ³•æ­£å¸¸å·¥ä½œï¼Œå¹¶å¯èƒ½åŒ…å«ä¼šåœ¨ä¸ä¹…çš„
+ å°†æ¥å‘生å˜åŒ–的用户接å£ã€‚
+
+虽然stagingå¼€å‘人员通常åšæŒâ€œæ— å›žå½’â€çš„原则,但有时为了å–得进展也会è¿èƒŒå®ƒã€‚这就
+是为什么当stagingæ ‘çš„WiFi驱动被基本推倒é‡æ¥æ—¶ï¼Œæœ‰äº›ç”¨æˆ·ä¸å¾—ä¸å¤„ç†å›žå½’(通常å¯
+以忽略)。
+
+为什么较新版本必须“使用相似é…置编译â€ï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+因为Linux内核开å‘人员有时会集æˆå·²çŸ¥çš„会导致回归的å˜æ›´ï¼Œä½†ä½¿å®ƒä»¬æˆä¸ºå¯é€‰çš„,并
+在内核的默认é…置下ç¦ç”¨å®ƒä»¬ã€‚这一技巧å…许进步,å¦åˆ™â€œæ— å›žå½’â€è§„则将导致åœæ»žã€‚
+
+例如,试想一个新的å¯ä»¥é˜»æ­¢æ¶æ„软件滥用æŸä¸ªå†…核的接å£çš„安全特性,åŒæ—¶åˆéœ€è¦æ»¡è¶³
+å¦ä¸€ä¸ªå¾ˆç½•è§çš„应用程åºã€‚上述的方法å¯ä½¿ä¸¤æ–¹éƒ½æ»¡æ„:使用这些应用程åºçš„人å¯ä»¥å…³é—­
+新的安全功能,而其他ä¸ä¼šé‡åˆ°éº»çƒ¦çš„人å¯ä»¥å¯ç”¨å®ƒã€‚
+
+如何创建与旧内核相似的é…置?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+用一个已知良好的内核å¯åŠ¨æœºå™¨ï¼Œå¹¶ç”¨ ``make olddefconfig`` é…置新版的Linux。这
+会让内核的构建脚本从正在è¿è¡Œçš„内核中摘录é…置文件(“.configâ€æ–‡ä»¶ï¼‰ï¼Œä½œä¸ºå³å°†ç¼–
+译的新版本的基础é…置;åŒæ—¶å°†æ‰€æœ‰æ–°çš„é…置选项设为默认值,以ç¦ç”¨å¯èƒ½å¯¼è‡´å›žå½’çš„
+新功能。
+
+如何报告在预编译的普通内核中å‘现的回归?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+您需è¦ç¡®ä¿æ–°çš„内核是用与旧版相似的é…置编译(è§ä¸Šæ–‡ï¼‰ï¼Œå› ä¸ºé‚£äº›æž„建它们的人å¯
+能å¯ç”¨äº†ä¸€äº›å·²çŸ¥çš„与新内核ä¸å…¼å®¹çš„特性。如有疑问,请å‘内核的æ供者报告问题并
+寻求建议。
+
+
+用“regzbotâ€è¿½è¸ªå›žå½’的更多信æ¯
+-----------------------------
+
+什么是回归追踪?为啥我需è¦å…³å¿ƒå®ƒï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+åƒâ€œæ— å›žå½’â€è¿™æ ·çš„规则需è¦æœ‰äººæ¥ç¡®ä¿å®ƒä»¬è¢«éµå®ˆï¼Œå¦åˆ™ä¼šè¢«æœ‰æ„/æ— æ„打破。历å²è¯
+明了这一点对于Linux内核开å‘也适用。这就是为什么Linux内核的回归跟踪者Thorsten
+Leemhuis,,和å¦ä¸€äº›äººå°½åŠ›å…³æ³¨æ‰€æœ‰çš„回归直到他们解决。他们从未为此获得报酬,
+因此这项工作是在尽最大努力的基础上完æˆçš„。
+
+为什么/如何使用机器人追踪Linux内核回归?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+由于Linux内核开å‘过程的分布å¼å’Œæ¾æ•£ç»“构,完全手动跟踪回归已ç»è¢«è¯æ˜Žæ˜¯ç›¸å½“å›°éš¾
+的。因此Linux内核的回归跟踪者开å‘了regzbotæ¥ä¿ƒè¿›è¿™é¡¹å·¥ä½œï¼Œå…¶é•¿æœŸç›®æ ‡æ˜¯å°½å¯èƒ½ä¸º
+所有相关人员自动化回归跟踪。
+
+Regzbot通过监视跟踪的回归报告的回å¤æ¥å·¥ä½œã€‚此外,它还查找用“Link:â€æ ‡ç­¾å¼•ç”¨è¿™
+些报告的补ä¸ï¼›å¯¹è¿™äº›è¡¥ä¸çš„回å¤ä¹Ÿä¼šè¢«è·Ÿè¸ªã€‚结åˆè¿™äº›æ•°æ®ï¼Œå¯ä»¥å¾ˆå¥½åœ°äº†è§£å½“å‰ä¿®
+å¤è¿‡ç¨‹çš„状æ€ã€‚
+
+如何查看regzbot当å‰è¿½è¸ªçš„回归?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+å‚è§ `regzbot在线 <https://linux-regtracking.leemhuis.info/regzbot/>`_ 。
+
+何ç§é—®é¢˜å¯ä»¥ç”±regzbot追踪?
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+该机器人åªä¸ºäº†è·Ÿè¸ªå›žå½’,因此请ä¸è¦è®©regzbot涉åŠå¸¸è§„问题。但是对于Linux内核的
+回归跟踪者æ¥è¯´ï¼Œè®©regzbot跟踪严é‡é—®é¢˜ä¹Ÿå¯ä»¥ï¼Œå¦‚有关挂起ã€æŸåæ•°æ®æˆ–内部错误
+(Panicã€Oopsã€BUG()ã€warning…)的报告。
+
+如何修改被追踪回归的相关信æ¯ï¼Ÿ
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+在直接或间接回å¤æŠ¥å‘Šé‚®ä»¶æ—¶ä½¿ç”¨â€œregzbot命令â€å³å¯ã€‚最简å•çš„方法是:在“已å‘é€â€æ–‡
+件夹或邮件列表存档中找到报告,然åŽä½¿ç”¨é‚®ä»¶å®¢æˆ·ç«¯çš„“全部回å¤â€åŠŸèƒ½å¯¹å…¶è¿›è¡Œå›žå¤ã€‚
+在该邮件中的独立段è½ä¸­å¯ä½¿ç”¨ä»¥ä¸‹å‘½ä»¤ä¹‹ä¸€ï¼ˆå³ä½¿ç”¨ç©ºè¡Œå°†è¿™äº›å‘½ä»¤ä¸­çš„一个或多个与
+其余邮件文本分隔开)。
+
+ * 更新回归引入起点,例如在执行二分之åŽ::
+
+ #regzbot introduced: 1f2e3d4c5d
+
+ * 设置或更新标题::
+
+ #regzbot title: foo
+
+ * 监视讨论或bugzilla.kernel.org上有关讨论或修å¤çš„å·¥å•::
+
+ #regzbot monitor: https://lore.kernel.org/r/30th.anniversary.repost@klaava.Helsinki.FI/
+ #regzbot monitor: https://bugzilla.kernel.org/show_bug.cgi?id=123456789
+
+ * 标记一个有更多相关细节的地方,例如有关但主题ä¸åŒçš„邮件列表帖å­æˆ–缺陷追踪器中的工å•::
+
+ #regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=123456789
+
+ * 标记回归已失效::
+
+ #regzbot invalid: wasn't a regression, problem has always existed
+
+Regzbot还支æŒå…¶ä»–一些主è¦ç”±å¼€å‘人员或回归追踪人员使用的命令。命令的更多细节请
+å‚考 `å…¥é—¨æŒ‡å— <https://gitlab.com/knurd42/regzbot/-/blob/main/docs/getting_started.md>`_
+å’Œ `å‚考手册 <https://gitlab.com/knurd42/regzbot/-/blob/main/docs/reference.md>`_ 。
+
+..
+ 正文结æŸ
+..
+ 如本文件开头所述,本文以GPL-2.0+或CC-BY-4.0许å¯å‘行。如您想仅在CC-BY-4.0许
+ å¯ä¸‹é‡åˆ†å‘本文,请用“Linux内核开å‘者â€ä½œä¸ºä½œè€…,并用如下链接作为æ¥æºï¼š
+ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/Documentation/translations/zh_CN/admin-guide/reporting-regressions.rst
+..
+ 注æ„:本RST文件内容åªæœ‰åœ¨æ¥è‡ªLinux内核æºä»£ç æ—¶æ˜¯ä½¿ç”¨CC-BY-4.0许å¯çš„,因为ç»
+ 过处ç†çš„版本(如ç»å†…核的构建系统)å¯èƒ½åŒ…å«æ¥è‡ªä½¿ç”¨æ›´ä¸¥æ ¼è®¸å¯è¯çš„文件的内容。
diff --git a/Documentation/translations/zh_CN/core-api/cachetlb.rst b/Documentation/translations/zh_CN/core-api/cachetlb.rst
index 6fee45fe5e80..b4a76ec75daa 100644
--- a/Documentation/translations/zh_CN/core-api/cachetlb.rst
+++ b/Documentation/translations/zh_CN/core-api/cachetlb.rst
@@ -5,6 +5,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
:校译:
@@ -278,6 +279,11 @@ HyperSparc cpu就是这样一个具有这ç§å±žæ€§çš„cpu。
CPU上,因为它将cpu存储到页é¢ä¸Šï¼Œä½¿å…¶å˜è„。åŒæ ·ï¼Œè¯·çœ‹
sparc64关于如何处ç†è¿™ä¸ªé—®é¢˜çš„例å­ã€‚
+ ``void flush_dcache_folio(struct folio *folio)``
+
+ 该函数的调用情形与flush_dcache_page()相åŒã€‚它å…许架构针对刷新整个
+ folio页é¢è¿›è¡Œä¼˜åŒ–,而ä¸æ˜¯ä¸€æ¬¡åˆ·æ–°ä¸€é¡µã€‚
+
``void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long user_vaddr, void *dst, void *src, int len)``
``void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
diff --git a/Documentation/translations/zh_CN/core-api/circular-buffers.rst b/Documentation/translations/zh_CN/core-api/circular-buffers.rst
new file mode 100644
index 000000000000..694ad8e61070
--- /dev/null
+++ b/Documentation/translations/zh_CN/core-api/circular-buffers.rst
@@ -0,0 +1,210 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/core-api/circular-buffers.rst
+
+:翻译:
+
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
+
+:校译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ å´æƒ³æˆ Wu Xiangcheng <bobwxc@email.cn>
+ 时奎亮 Alex Shi <alexs@kernel.org>
+
+==========
+环形缓冲区
+==========
+
+:作者: David Howells <dhowells@redhat.com>
+:作者: Paul E. McKenney <paulmck@linux.ibm.com>
+
+
+Linux æ供了许多å¯ç”¨äºŽå®žçŽ°å¾ªçŽ¯ç¼“冲的特性。有两组这样的特性:
+
+ (1) 用于确定2次方大å°çš„缓冲区信æ¯çš„便利函数。
+
+ (2) å¯ä»¥ä»£æ›¿ç¼“冲区中对象的生产者和消费者共享é”的内存å±éšœã€‚
+
+如下所述,è¦ä½¿ç”¨è¿™äº›è®¾æ–½ï¼Œåªéœ€è¦ä¸€ä¸ªç”Ÿäº§è€…和一个消费者。å¯ä»¥é€šè¿‡åºåˆ—化æ¥å¤„ç†å¤šä¸ª
+生产者,并通过åºåˆ—化æ¥å¤„ç†å¤šä¸ªæ¶ˆè´¹è€…。
+
+.. Contents:
+
+ (*) 什么是环形缓冲区?
+
+ (*) 测é‡2次幂缓冲区
+
+ (*) 内存å±éšœä¸ŽçŽ¯å½¢ç¼“冲区的结åˆä½¿ç”¨
+ - 生产者
+ - 消费者
+
+ (*) 延伸阅读
+
+
+
+什么是环形缓冲区?
+==================
+
+首先,什么是环形缓冲区?环形缓冲区是具有固定的有é™å¤§å°çš„缓冲区,它有两个索引:
+
+ (1) 'head'索引 - 生产者将元素æ’入缓冲区的ä½ç½®ã€‚
+
+ (2) 'tail'索引 - 消费者在缓冲区中找到下一个元素的ä½ç½®ã€‚
+
+通常,当tail指针等于head指针时,表明缓冲区是空的;而当head指针比tail指针少一个时,
+表明缓冲区是满的。
+
+添加元素时,递增head索引;删除元素时,递增tail索引。tail索引ä¸åº”该跳过head索引,
+两个索引在到达缓冲区末端时都应该被赋值为0,从而å…许海é‡çš„æ•°æ®æµè¿‡ç¼“冲区。
+
+通常情况下,元素都有相åŒçš„å•å…ƒå¤§å°ï¼Œä½†è¿™å¹¶ä¸æ˜¯ä½¿ç”¨ä»¥ä¸‹æŠ€æœ¯çš„严格è¦æ±‚。如果è¦åœ¨ç¼“
+冲区中包å«å¤šä¸ªå…ƒç´ æˆ–å¯å˜å¤§å°çš„元素,则索引å¯ä»¥å¢žåŠ è¶…过1,å‰æ是两个索引都没有超过
+å¦ä¸€ä¸ªã€‚然而,实现者必须å°å¿ƒï¼Œå› ä¸ºè¶…过一个å•ä½å¤§å°çš„区域å¯èƒ½ä¼šè¦†ç›–缓冲区的末端并
+且缓冲区会被分æˆä¸¤æ®µã€‚
+
+测é‡2次幂缓冲区
+===============
+
+计算任æ„大å°çš„环形缓冲区的å ç”¨æˆ–剩余容é‡é€šå¸¸æ˜¯ä¸€ä¸ªè´¹æ—¶çš„æ“作,需è¦ä½¿ç”¨æ¨¡ï¼ˆé™¤æ³•ï¼‰
+指令。但是如果缓冲区的大å°ä¸º2次幂,则å¯ä»¥ä½¿ç”¨æ›´å¿«çš„按ä½ä¸ŽæŒ‡ä»¤ä»£æ›¿ã€‚
+
+Linuxæ供了一组用于处ç†2次幂环形缓冲区的å®ã€‚å¯ä»¥é€šè¿‡ä»¥ä¸‹æ–¹å¼ä½¿ç”¨::
+
+ #include <linux/circ_buf.h>
+
+这些å®åŒ…括:
+
+ (#) 测é‡ç¼“冲区的剩余容é‡::
+
+ CIRC_SPACE(head_index, tail_index, buffer_size);
+
+ 返回缓冲区[1]中å¯æ’入元素的剩余空间大å°ã€‚
+
+
+ (#) 测é‡ç¼“冲区中的最大连续立å³å¯ç”¨ç©ºé—´::
+
+ CIRC_SPACE_TO_END(head_index, tail_index, buffer_size);
+
+ 返回缓冲区[1]中剩余的连续空间的大å°ï¼Œå…ƒç´ å¯ä»¥ç«‹å³æ’入其中,而ä¸å¿…绕回到缓冲
+ 区的开头。
+
+
+ (#) 测é‡ç¼“冲区的使用数::
+
+ CIRC_CNT(head_index, tail_index, buffer_size);
+
+ 返回当å‰å ç”¨ç¼“冲区[2]的元素数é‡ã€‚
+
+
+ (#) 测é‡ç¼“冲区的连续使用数::
+
+ CIRC_CNT_TO_END(head_index, tail_index, buffer_size);
+
+ 返回å¯ä»¥ä»Žç¼“冲区中æå–的连续元素[2]çš„æ•°é‡ï¼Œè€Œä¸å¿…绕回到缓冲区的开头。
+
+这里的æ¯ä¸€ä¸ªå®å义上都会返回一个介于0å’Œbuffer_size-1之间的值,但是:
+
+ (1) CIRC_SPACE*()是为了在生产者中使用。对生产者æ¥è¯´ï¼Œå®ƒä»¬å°†è¿”回一个下é™ï¼Œå› ä¸ºç”Ÿ
+ 产者控制ç€head索引,但消费者å¯èƒ½ä»ç„¶åœ¨å¦ä¸€ä¸ªCPU上耗尽缓冲区并移动tail索引。
+
+ 对消费者æ¥è¯´ï¼Œå®ƒå°†æ˜¾ç¤ºä¸€ä¸ªä¸Šé™ï¼Œå› ä¸ºç”Ÿäº§è€…å¯èƒ½æ­£å¿™äºŽè€—尽空间。
+
+ (2) CIRC_CNT*()是为了在消费者中使用。对消费者æ¥è¯´ï¼Œå®ƒä»¬å°†è¿”回一个下é™ï¼Œå› ä¸ºæ¶ˆè´¹
+ 者控制ç€tail索引,但生产者å¯èƒ½ä»ç„¶åœ¨å¦ä¸€ä¸ªCPU上填充缓冲区并移动head索引。
+
+ 对于生产者,它将显示一个上é™ï¼Œå› ä¸ºæ¶ˆè´¹è€…å¯èƒ½æ­£å¿™äºŽæ¸…空缓冲区。
+
+ (3) 对于第三方æ¥è¯´ï¼Œç”Ÿäº§è€…和消费者对索引的写入顺åºæ˜¯æ— æ³•ä¿è¯çš„,因为它们是独立的,
+ 而且å¯èƒ½æ˜¯åœ¨ä¸åŒçš„CPU上进行的,所以在这ç§æƒ…况下的结果åªæ˜¯ä¸€ç§çŒœæµ‹ï¼Œç”šè‡³å¯èƒ½
+ 是错误的。
+
+内存å±éšœä¸ŽçŽ¯å½¢ç¼“冲区的结åˆä½¿ç”¨
+==============================
+
+通过将内存å±éšœä¸ŽçŽ¯å½¢ç¼“冲区结åˆä½¿ç”¨ï¼Œå¯ä»¥é¿å…以下需求:
+
+ (1) 使用å•ä¸ªé”æ¥æŽ§åˆ¶å¯¹ç¼“冲区两端的访问,从而å…许åŒæ—¶å¡«å……和清空缓冲区;以åŠ
+
+ (2) 使用原å­è®¡æ•°å™¨æ“作。
+
+这有两个方é¢ï¼šå¡«å……缓冲区的生产者和清空缓冲区的消费者。在任何时候,åªåº”有一个生产
+者在填充缓冲区,åŒæ ·çš„也åªåº”有一个消费者在清空缓冲区,但åŒæ–¹å¯ä»¥åŒæ—¶æ“作。
+
+
+生产者
+------
+
+生产者看起æ¥åƒè¿™æ ·::
+
+ spin_lock(&producer_lock);
+
+ unsigned long head = buffer->head;
+ /* spin_unlock()和下一个spin_lock()æ供必è¦çš„排åºã€‚ */
+ unsigned long tail = READ_ONCE(buffer->tail);
+
+ if (CIRC_SPACE(head, tail, buffer->size) >= 1) {
+ /* 添加一个元素到缓冲区 */
+ struct item *item = buffer[head];
+
+ produce_item(item);
+
+ smp_store_release(buffer->head,
+ (head + 1) & (buffer->size - 1));
+
+ /* wake_up()将确ä¿åœ¨å”¤é†’任何人之å‰æ交head */
+ wake_up(consumer);
+ }
+
+ spin_unlock(&producer_lock);
+
+这将表明CPU必须在head索引使其对消费者å¯ç”¨ä¹‹å‰å†™å…¥æ–°é¡¹ç›®çš„内容,åŒæ—¶CPU必须在唤醒
+消费者之å‰å†™å…¥ä¿®æ”¹åŽçš„head索引。
+
+请注æ„,wake_up()并ä¸ä¿è¯ä»»ä½•å½¢å¼çš„å±éšœï¼Œé™¤éžç¡®å®žå”¤é†’了æŸäº›ä¸œè¥¿ã€‚因此我们ä¸èƒ½ä¾é 
+它æ¥è¿›è¡ŒæŽ’åºã€‚但是数组中始终有一个元素留空,因此生产者必须产生两个元素,然åŽæ‰å¯
+能破å消费者当å‰æ­£åœ¨è¯»å–的元素。åŒæ—¶ï¼Œæ¶ˆè´¹è€…连续调用之间æˆå¯¹çš„解é”-加é”æ供了索引
+读å–(指示消费者已清空给定元素)和生产者对该相åŒå…ƒç´ çš„写入之间的必è¦é¡ºåºã€‚
+
+
+消费者
+------
+
+消费者看起æ¥åƒè¿™æ ·::
+
+ spin_lock(&consumer_lock);
+
+ /* 读å–该索引处的内容之å‰ï¼Œå…ˆè¯»å–索引 */
+ unsigned long head = smp_load_acquire(buffer->head);
+ unsigned long tail = buffer->tail;
+
+ if (CIRC_CNT(head, tail, buffer->size) >= 1) {
+
+ /* 从缓冲区中æå–一个元素 */
+ struct item *item = buffer[tail];
+
+ consume_item(item);
+
+ /* 在递增tail之å‰å®Œæˆå¯¹æ述符的读å–。 */
+ smp_store_release(buffer->tail,
+ (tail + 1) & (buffer->size - 1));
+ }
+
+ spin_unlock(&consumer_lock);
+
+这表明CPU在读å–新元素之å‰ç¡®ä¿ç´¢å¼•æ˜¯æœ€æ–°çš„,然åŽåœ¨å†™å…¥æ–°çš„尾指针之å‰åº”ç¡®ä¿CPU已完
+æˆè¯»å–该元素,这将擦除该元素。
+
+请注æ„,使用READ_ONCE()å’Œsmp_load_acquire()æ¥è¯»å–åå‘(head)索引。这å¯ä»¥é˜²æ­¢ç¼–译
+器丢弃并é‡æ–°åŠ è½½å…¶ç¼“存值。如果您能确定åå‘(head)索引将仅使用一次,则这ä¸æ˜¯å¿…é¡»
+的。smp_load_acquire()还å¯ä»¥å¼ºåˆ¶CPU对åŽç»­çš„内存引用进行排åºã€‚类似地,两ç§ç®—法都使
+用smp_store_release()æ¥å†™å…¥çº¿ç¨‹çš„索引。这记录了我们正在写入å¯ä»¥å¹¶å‘读å–的内容的事
+实,以防止编译器破å存储,并强制对以å‰çš„访问进行排åºã€‚
+
+
+延伸阅读
+========
+
+关于Linux的内存å±éšœè®¾æ–½çš„æ述,请查看Documentation/memory-barriers.txt。
diff --git a/Documentation/translations/zh_CN/core-api/cpu_hotplug.rst b/Documentation/translations/zh_CN/core-api/cpu_hotplug.rst
index 85a264287426..4772a900c37a 100644
--- a/Documentation/translations/zh_CN/core-api/cpu_hotplug.rst
+++ b/Documentation/translations/zh_CN/core-api/cpu_hotplug.rst
@@ -4,6 +4,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
:校译:
@@ -15,12 +16,13 @@
内核中的CPU热拔æ’
=================
-:时间: 2016年12月
+:时间: 2021年9月
:作者: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
- Rusty Russell <rusty@rustcorp.com.au>,
- Srivatsa Vaddagiri <vatsa@in.ibm.com>,
- Ashok Raj <ashok.raj@intel.com>,
- Joel Schopp <jschopp@austin.ibm.com>
+ Rusty Russell <rusty@rustcorp.com.au>,
+ Srivatsa Vaddagiri <vatsa@in.ibm.com>,
+ Ashok Raj <ashok.raj@intel.com>,
+ Joel Schopp <jschopp@austin.ibm.com>,
+ Thomas Gleixner <tglx@linutronix.de>
简介
====
@@ -139,7 +141,7 @@ CPU的热拔æ’å作
下线情况
--------
-一旦CPU被逻辑关闭,注册的热æ’拔状æ€çš„清除回调将被调用,从 ``CPUHP_ONLINE`` 开始,在
+一旦CPU被逻辑关闭,注册的热æ’拔状æ€çš„清除回调将被调用,从 ``CPUHP_ONLINE`` 开始,到
``CPUHP_OFFLINE`` 状æ€ç»“æŸã€‚这包括:
* 如果任务因暂åœæ“作而被冻结,那么 *cpuhp_tasks_frozen* 将被设置为true。
@@ -154,82 +156,399 @@ CPU的热拔æ’å作
* 一旦所有的æœåŠ¡è¢«è¿ç§»ï¼Œå†…核会调用一个特定的例程 ``__cpu_disable()`` æ¥è¿›è¡Œç‰¹å®šçš„清
ç†ã€‚
-使用热æ’æ‹”API
--------------
+CPU热æ’æ‹”API
+============
+
+CPU热拔æ’状æ€æœº
+---------------
+
+CPU热æ’拔使用一个从CPUHP_OFFLINE到CPUHP_ONLINE的线性状æ€ç©ºé—´çš„普通状æ€æœºã€‚æ¯ä¸ªçŠ¶æ€éƒ½
+有一个startup和teardown的回调。
+
+当一个CPU上线时,将按顺åºè°ƒç”¨startup回调,直到达到CPUHP_ONLINE状æ€ã€‚当设置状æ€çš„回调
+或将实例添加到多实例状æ€æ—¶ï¼Œä¹Ÿå¯ä»¥è°ƒç”¨å®ƒä»¬ã€‚
+
+当一个CPU下线时,将按相å的顺åºä¾æ¬¡è°ƒç”¨teardown回调,直到达到CPUHP_OFFLINE状æ€ã€‚当删
+除状æ€çš„回调或从多实例状æ€ä¸­åˆ é™¤å®žä¾‹æ—¶ï¼Œä¹Ÿå¯ä»¥è°ƒç”¨å®ƒä»¬ã€‚
+
+如果æŸä¸ªä½¿ç”¨åœºæ™¯åªéœ€è¦ä¸€ä¸ªæ–¹å‘的热æ’æ‹”æ“作回调(CPU上线或CPU下线),则在设置状æ€æ—¶ï¼Œ
+å¯ä»¥å°†å¦ä¸€ä¸ªä¸éœ€è¦çš„回调设置为NULL。
+
+状æ€ç©ºé—´è¢«åˆ’分æˆä¸‰ä¸ªé˜¶æ®µ:
+
+* PREPARE阶段
+
+ PREPARE阶段涵盖了从CPUHP_OFFLINE到CPUHP_BRINGUP_CPU之间的状æ€ç©ºé—´ã€‚
+
+ 在该阶段中,startup回调在CPU上线æ“作å¯åŠ¨CPU之å‰è¢«è°ƒç”¨ï¼Œteardown回调在CPU下线æ“作使
+ CPU功能失效之åŽè¢«è°ƒç”¨ã€‚
+
+ 这些回调是在控制CPU上调用的,因为它们显然ä¸èƒ½åœ¨çƒ­æ’拔的CPU上è¿è¡Œï¼Œæ­¤æ—¶çƒ­æ’拔的CPUè¦
+ 么还没有å¯åŠ¨ï¼Œè¦ä¹ˆå·²ç»åŠŸèƒ½å¤±æ•ˆã€‚
+
+ startup回调用于设置CPUæˆåŠŸä¸Šçº¿æ‰€éœ€è¦çš„资æºã€‚teardown回调用于释放资æºæˆ–在热æ’拔的CPU
+ 功能失效åŽï¼Œå°†å¾…处ç†çš„工作转移到在线的CPU上。
+
+ å…许startup回调失败。如果回调失败,CPU上线æ“作被中止,CPUå°†å†æ¬¡è¢«é™åˆ°ä¹‹å‰çš„状æ€ï¼ˆé€š
+ 常是CPUHP_OFFLINE)。
+
+ 本阶段中的teardown回调ä¸å…许失败。
+
+* STARTING阶段
+
+ STARTING阶段涵盖了CPUHP_BRINGUP_CPU + 1到CPUHP_AP_ONLINE之间的状æ€ç©ºé—´ã€‚
+
+ 该阶段中的startup回调是在早期CPU设置代ç ä¸­çš„CPU上线æ“作期间,ç¦ç”¨ä¸­æ–­çš„情况下在热拔
+ æ’çš„CPU上被调用。teardown回调是在CPU完全关闭å‰ä¸ä¹…çš„CPU下线æ“作期间,ç¦ç”¨ä¸­æ–­çš„情况
+ 下在热拔æ’çš„CPU上被调用。
+
+ 该阶段中的回调ä¸å…许失败。
+
+ 回调用于低级别的硬件åˆå§‹åŒ–/关机和核心å­ç³»ç»Ÿã€‚
+
+* ONLINE阶段
+
+ ONLINE阶段涵盖了CPUHP_AP_ONLINE + 1到CPUHP_ONLINE之间的状æ€ç©ºé—´ã€‚
+
+ 该阶段中的startup回调是在CPU上线时在热æ’拔的CPU上调用的。teardown回调是在CPU下线æ“
+ 作时在热æ’æ‹”CPU上调用的。
+
+ 回调是在æ¯ä¸ªCPU热æ’拔线程的上下文中调用的,该线程绑定在热æ’拔的CPU上。回调是在å¯ç”¨
+ 中断和抢å çš„情况下调用的。
+
+ å…许回调失败。如果回调失败,CPU热æ’æ‹”æ“作被中止,CPUå°†æ¢å¤åˆ°ä¹‹å‰çš„状æ€ã€‚
+
+CPU 上线/下线æ“作
+-----------------
+
+一个æˆåŠŸçš„上线æ“作如下::
+
+ [CPUHP_OFFLINE]
+ [CPUHP_OFFLINE + 1]->startup() -> æˆåŠŸ
+ [CPUHP_OFFLINE + 2]->startup() -> æˆåŠŸ
+ [CPUHP_OFFLINE + 3] -> 略过,因为startup == NULL
+ ...
+ [CPUHP_BRINGUP_CPU]->startup() -> æˆåŠŸ
+ === PREPARE阶段结æŸ
+ [CPUHP_BRINGUP_CPU + 1]->startup() -> æˆåŠŸ
+ ...
+ [CPUHP_AP_ONLINE]->startup() -> æˆåŠŸ
+ === STARTUP阶段结æŸ
+ [CPUHP_AP_ONLINE + 1]->startup() -> æˆåŠŸ
+ ...
+ [CPUHP_ONLINE - 1]->startup() -> æˆåŠŸ
+ [CPUHP_ONLINE]
+
+一个æˆåŠŸçš„下线æ“作如下::
+
+ [CPUHP_ONLINE]
+ [CPUHP_ONLINE - 1]->teardown() -> æˆåŠŸ
+ ...
+ [CPUHP_AP_ONLINE + 1]->teardown() -> æˆåŠŸ
+ === STARTUP阶段开始
+ [CPUHP_AP_ONLINE]->teardown() -> æˆåŠŸ
+ ...
+ [CPUHP_BRINGUP_ONLINE - 1]->teardown()
+ ...
+ === PREPARE阶段开始
+ [CPUHP_BRINGUP_CPU]->teardown()
+ [CPUHP_OFFLINE + 3]->teardown()
+ [CPUHP_OFFLINE + 2] -> 略过,因为teardown == NULL
+ [CPUHP_OFFLINE + 1]->teardown()
+ [CPUHP_OFFLINE]
+
+一个失败的上线æ“作如下::
+
+ [CPUHP_OFFLINE]
+ [CPUHP_OFFLINE + 1]->startup() -> æˆåŠŸ
+ [CPUHP_OFFLINE + 2]->startup() -> æˆåŠŸ
+ [CPUHP_OFFLINE + 3] -> 略过,因为startup == NULL
+ ...
+ [CPUHP_BRINGUP_CPU]->startup() -> æˆåŠŸ
+ === PREPARE阶段结æŸ
+ [CPUHP_BRINGUP_CPU + 1]->startup() -> æˆåŠŸ
+ ...
+ [CPUHP_AP_ONLINE]->startup() -> æˆåŠŸ
+ === STARTUP阶段结æŸ
+ [CPUHP_AP_ONLINE + 1]->startup() -> æˆåŠŸ
+ ---
+ [CPUHP_AP_ONLINE + N]->startup() -> 失败
+ [CPUHP_AP_ONLINE + (N - 1)]->teardown()
+ ...
+ [CPUHP_AP_ONLINE + 1]->teardown()
+ === STARTUP阶段开始
+ [CPUHP_AP_ONLINE]->teardown()
+ ...
+ [CPUHP_BRINGUP_ONLINE - 1]->teardown()
+ ...
+ === PREPARE阶段开始
+ [CPUHP_BRINGUP_CPU]->teardown()
+ [CPUHP_OFFLINE + 3]->teardown()
+ [CPUHP_OFFLINE + 2] -> 略过,因为teardown == NULL
+ [CPUHP_OFFLINE + 1]->teardown()
+ [CPUHP_OFFLINE]
+
+一个失败的下线æ“作如下::
+
+ [CPUHP_ONLINE]
+ [CPUHP_ONLINE - 1]->teardown() -> æˆåŠŸ
+ ...
+ [CPUHP_ONLINE - N]->teardown() -> 失败
+ [CPUHP_ONLINE - (N - 1)]->startup()
+ ...
+ [CPUHP_ONLINE - 1]->startup()
+ [CPUHP_ONLINE]
+
+递归失败ä¸èƒ½è¢«åˆç†åœ°å¤„ç†ã€‚
+请看下é¢çš„例å­ï¼Œç”±äºŽä¸‹çº¿æ“作失败而导致的递归失败::
+
+ [CPUHP_ONLINE]
+ [CPUHP_ONLINE - 1]->teardown() -> æˆåŠŸ
+ ...
+ [CPUHP_ONLINE - N]->teardown() -> 失败
+ [CPUHP_ONLINE - (N - 1)]->startup() -> æˆåŠŸ
+ [CPUHP_ONLINE - (N - 2)]->startup() -> 失败
+
+CPU热æ’拔状æ€æœºåœ¨æ­¤åœæ­¢ï¼Œä¸”ä¸å†å°è¯•å›žæ»šï¼Œå› ä¸ºè¿™å¯èƒ½ä¼šå¯¼è‡´æ­»å¾ªçŽ¯::
+
+ [CPUHP_ONLINE - (N - 1)]->teardown() -> æˆåŠŸ
+ [CPUHP_ONLINE - N]->teardown() -> 失败
+ [CPUHP_ONLINE - (N - 1)]->startup() -> æˆåŠŸ
+ [CPUHP_ONLINE - (N - 2)]->startup() -> 失败
+ [CPUHP_ONLINE - (N - 1)]->teardown() -> æˆåŠŸ
+ [CPUHP_ONLINE - N]->teardown() -> 失败
+
+周而å¤å§‹ï¼Œä¸æ–­é‡å¤ã€‚在这ç§æƒ…况下,CPU留在该状æ€ä¸­::
+
+ [CPUHP_ONLINE - (N - 1)]
+
+这至少å¯ä»¥è®©ç³»ç»Ÿå–得进展,让用户有机会进行调试,甚至解决这个问题。
+
+分é…一个状æ€
+------------
+
+有两ç§æ–¹å¼åˆ†é…一个CPU热æ’拔状æ€:
+
+* é™æ€åˆ†é…
+
+ 当å­ç³»ç»Ÿæˆ–驱动程åºæœ‰ç›¸å¯¹äºŽå…¶ä»–CPU热æ’拔状æ€çš„排åºè¦æ±‚时,必须使用é™æ€åˆ†é…。例如,
+ 在CPU上线æ“作期间,PERF核心startup回调必须在PERF驱动startup回调之å‰è¢«è°ƒç”¨ã€‚在CPU
+ 下线æ“作中,驱动teardown回调必须在核心teardown回调之å‰è°ƒç”¨ã€‚é™æ€åˆ†é…的状æ€ç”±
+ cpuhp_state枚举中的常é‡æ述,å¯ä»¥åœ¨include/linux/cpuhotplug.h中找到。
+
+ 在适当的ä½ç½®å°†çŠ¶æ€æ’入枚举中,这样就满足了排åºè¦æ±‚。状æ€å¸¸é‡å¿…须被用于状æ€çš„设置
+ 和移除。
+
+ 当状æ€å›žè°ƒä¸æ˜¯åœ¨è¿è¡Œæ—¶è®¾ç½®çš„,并且是kernel/cpu.c中CPU热æ’拔状æ€æ•°ç»„åˆå§‹åŒ–的一部分
+ 时,也需è¦é™æ€åˆ†é…。
+
+* 动æ€åˆ†é…
+
+ 当对状æ€å›žè°ƒæ²¡æœ‰æŽ’åºè¦æ±‚时,动æ€åˆ†é…是首选方法。状æ€ç¼–å·ç”±setup函数分é…,并在æˆåŠŸ
+ åŽè¿”回给调用者。
+
+ åªæœ‰PREPAREå’ŒONLINE阶段æ供了一个动æ€åˆ†é…范围。STARTING阶段则没有,因为该部分的大多
+ 数回调都有明确的排åºè¦æ±‚。
+
+CPU热æ’拔状æ€çš„设置
+-------------------
+
+核心代ç æ供了以下函数用æ¥è®¾ç½®çŠ¶æ€ï¼š
+
+* cpuhp_setup_state(state, name, startup, teardown)
+* cpuhp_setup_state_nocalls(state, name, startup, teardown)
+* cpuhp_setup_state_cpuslocked(state, name, startup, teardown)
+* cpuhp_setup_state_nocalls_cpuslocked(state, name, startup, teardown)
+
+对于一个驱动程åºæˆ–å­ç³»ç»Ÿæœ‰å¤šä¸ªå®žä¾‹ï¼Œå¹¶ä¸”æ¯ä¸ªå®žä¾‹éƒ½éœ€è¦è°ƒç”¨ç›¸åŒçš„CPU hotplug状æ€å›ž
+调的情况,CPU hotplug核心æ供多实例支æŒã€‚与驱动程åºç‰¹å®šçš„实例列表相比,其优势在于
+与实例相关的函数完全针对CPU hotplugæ“作进行åºåˆ—化,并在添加和删除时æ供状æ€å›žè°ƒçš„
+自动调用。è¦è®¾ç½®è¿™æ ·ä¸€ä¸ªå¤šå®žä¾‹çŠ¶æ€ï¼Œå¯ä»¥ä½¿ç”¨ä»¥ä¸‹å‡½æ•°ï¼š
+
+* cpuhp_setup_state_multi(state, name, startup, teardown)
+
+@stateå‚æ•°è¦ä¹ˆæ˜¯é™æ€åˆ†é…的状æ€ï¼Œè¦ä¹ˆæ˜¯åŠ¨æ€åˆ†é…状æ€ï¼ˆPUHP_PREPARE_DYN,CPUHP_ONLINE_DYN)
+的常é‡ä¹‹ä¸€ï¼Œ 具体å–决于应该分é…动æ€çŠ¶æ€çš„状æ€é˜¶æ®µï¼ˆPREPARE,ONLINE)。
+
+@nameå‚数用于sysfs输出和检测。命å惯例是"subsys:mode"或"subsys/driver:mode",
+例如 "perf:mode"或"perf/x86:mode"。常è§çš„modeå称有:
+
+======== ============================================
+prepare 对应PREPARE阶段中的状æ€
+
+dead 对应PREPARE阶段中ä¸æä¾›startup回调的状æ€
+
+starting 对应STARTING阶段中的状æ€
+
+dying 对应STARTING阶段中ä¸æä¾›startup回调的状æ€
+
+online 对应ONLINE阶段中的状æ€
+
+offline 对应ONLINE阶段中ä¸æä¾›startup回调的状æ€
+======== ============================================
+
+由于@nameå‚æ•°åªç”¨äºŽsysfs和检测,如果其他modeæ述符比常è§çš„æ述符更好地æ述状æ€çš„性质,
+也å¯ä»¥ä½¿ç”¨ã€‚
+
+@nameå‚数的示例:"perf/online", "perf/x86:prepare", "RCU/tree:dying", "sched/waitempty"
+
+@startupå‚数是一个指å‘回调的函数指针,在CPU上线æ“作时被调用。若应用ä¸éœ€è¦startup
+回调,则将该指针设为NULL。
+
+@teardownå‚数是一个指å‘回调的函数指针,在CPU下线æ“作时调用。若应用ä¸éœ€è¦teardown
+回调,则将该指针设为NULL。
+
+这些函数在处ç†å·²æ³¨å†Œå›žè°ƒçš„æ–¹å¼ä¸Šæœ‰æ‰€ä¸åŒ:
+
+ * cpuhp_setup_state_nocalls(), cpuhp_setup_state_nocalls_cpuslocked()和
+ cpuhp_setup_state_multi()åªæ³¨å†Œå›žè°ƒã€‚
+
+ * cpuhp_setup_state()å’Œcpuhp_setup_state_cpuslocked()注册回调,并对当å‰çŠ¶æ€å¤§äºŽæ–°
+ 安装状æ€çš„所有在线CPU调用@startup回调(如果ä¸æ˜¯NULL)。根æ®çŠ¶æ€é˜¶æ®µï¼Œå›žè°ƒè¦ä¹ˆåœ¨
+ 当å‰çš„CPU上调用(PREPARE阶段),è¦ä¹ˆåœ¨CPU的热æ’拔线程中调用æ¯ä¸ªåœ¨çº¿CPU(ONLINE阶段)。
+
+ 如果CPU N的回调失败,那么CPU 0...N-1çš„teardown回调被调用以回滚æ“作。状æ€è®¾ç½®å¤±è´¥ï¼Œ
+ 状æ€çš„回调没有被注册,在动æ€åˆ†é…的情况下,分é…的状æ€è¢«é‡Šæ”¾ã€‚
+
+状æ€è®¾ç½®å’Œå›žè°ƒè°ƒç”¨æ˜¯é’ˆå¯¹CPU热拔æ’æ“作进行åºåˆ—化的。如果设置函数必须从CPU热æ’拔的读
+é”定区域调用,那么必须使用_cpuslocked()å˜ä½“。这些函数ä¸èƒ½åœ¨CPU热拔æ’回调中使用。
+
+函数返回值:
+ ======== ==========================================================
+ 0 é™æ€åˆ†é…的状æ€è®¾ç½®æˆåŠŸ
+
+ >0 动æ€åˆ†é…的状æ€è®¾ç½®æˆåŠŸ
+
+ 返回的数值是被分é…的状æ€ç¼–å·ã€‚如果状æ€å›žè°ƒåŽæ¥å¿…须被移除,
+ 例如模å—移除,那么这个数值必须由调用者ä¿å­˜ï¼Œå¹¶ä½œä¸ºçŠ¶æ€ç§»
+ 除函数的@stateå‚数。对于多实例状æ€ï¼ŒåŠ¨æ€åˆ†é…的状æ€ç¼–å·ä¹Ÿ
+ 需è¦ä½œä¸ºå®žä¾‹æ·»åŠ /删除æ“作的@stateå‚数。
+
+ <0 æ“作失败
+ ======== ==========================================================
+
+移除CPU热拔æ’状æ€
+-----------------
+
+为了移除一个之å‰è®¾ç½®å¥½çš„状æ€ï¼Œæ供了如下函数:
+
+* cpuhp_remove_state(state)
+* cpuhp_remove_state_nocalls(state)
+* cpuhp_remove_state_nocalls_cpuslocked(state)
+* cpuhp_remove_multi_state(state)
+
+@stateå‚æ•°è¦ä¹ˆæ˜¯é™æ€åˆ†é…的状æ€ï¼Œè¦ä¹ˆæ˜¯ç”±cpuhp_setup_state*()在动æ€èŒƒå›´å†…分é…
+的状æ€ç¼–å·ã€‚如果状æ€åœ¨åŠ¨æ€èŒƒå›´å†…,则状æ€ç¼–å·è¢«é‡Šæ”¾ï¼Œå¯å†æ¬¡è¿›è¡ŒåŠ¨æ€åˆ†é…。
+
+这些函数在处ç†å·²æ³¨å†Œå›žè°ƒçš„æ–¹å¼ä¸Šæœ‰æ‰€ä¸åŒ:
+
+ * cpuhp_remove_state_nocalls(), cpuhp_remove_state_nocalls_cpuslocked()
+ å’Œ cpuhp_remove_multi_state()åªåˆ é™¤å›žè°ƒã€‚
+
+ * cpuhp_remove_state()删除回调,并调用所有当å‰çŠ¶æ€å¤§äºŽè¢«åˆ é™¤çŠ¶æ€çš„在线CPUçš„
+ teardown回调(如果ä¸æ˜¯NULL)。根æ®çŠ¶æ€é˜¶æ®µï¼Œå›žè°ƒè¦ä¹ˆåœ¨å½“å‰çš„CPU上调用
+ (PREPARE阶段),è¦ä¹ˆåœ¨CPU的热æ’拔线程中调用æ¯ä¸ªåœ¨çº¿CPU(ONLINE阶段)。
+
+ 为了完æˆç§»é™¤å·¥ä½œï¼Œteardown回调ä¸èƒ½å¤±è´¥ã€‚
+
+状æ€ç§»é™¤å’Œå›žè°ƒè°ƒç”¨æ˜¯é’ˆå¯¹CPU热拔æ’æ“作进行åºåˆ—化的。如果移除函数必须从CPU hotplug
+读å–é”定区域调用,那么必须使用_cpuslocked()å˜ä½“。这些函数ä¸èƒ½ä»ŽCPU热æ’拔的回调中使用。
+
+如果一个多实例的状æ€è¢«ç§»é™¤ï¼Œé‚£ä¹ˆè°ƒç”¨è€…必须先移除所有的实例。
+
+多实例状æ€å®žä¾‹ç®¡ç†
+------------------
+
+一旦多实例状æ€è¢«å»ºç«‹ï¼Œå®žä¾‹å°±å¯ä»¥è¢«æ·»åŠ åˆ°çŠ¶æ€ä¸­ï¼š
-一旦一个CPU下线或上线,就有å¯èƒ½æ”¶åˆ°é€šçŸ¥ã€‚这对æŸäº›éœ€è¦æ ¹æ®å¯ç”¨CPUæ•°é‡æ‰§è¡ŒæŸç§è®¾ç½®æˆ–清
-ç†åŠŸèƒ½çš„驱动程åºæ¥è¯´å¯èƒ½å¾ˆé‡è¦::
+ * cpuhp_state_add_instance(state, node)
+ * cpuhp_state_add_instance_nocalls(state, node)
- #include <linux/cpuhotplug.h>
+@stateå‚数是一个é™æ€åˆ†é…的状æ€æˆ–ç”±cpuhp_setup_state_multi()在动æ€èŒƒå›´å†…分é…的状
+æ€ç¼–å·ã€‚
- ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "X/Y:online",
- Y_online, Y_prepare_down);
+@nodeå‚数是一个指å‘hlist_node的指针,它被嵌入到实例的数æ®ç»“构中。这个指针被交给
+多实例状æ€çš„回调,å¯ä»¥è¢«å›žè°ƒç”¨æ¥é€šè¿‡container_of()检索到实例。
-*X* 是å­ç³»ç»Ÿï¼Œ *Y* 是特定的驱动程åºã€‚ *Y_online* 回调将在所有在线CPU的注册过程中被调用。
-如果在线回调期间å‘生错误, *Y_prepare_down* 回调将在所有之å‰è°ƒç”¨è¿‡åœ¨çº¿å›žè°ƒçš„CPU上调
-用。注册完æˆåŽï¼Œä¸€æ—¦æœ‰CPU上线, *Y_online* 回调将被调用,当CPU关闭时, *Y_prepare_down*
-将被调用。所有之å‰åœ¨ *Y_online* 中分é…的资æºéƒ½åº”该在 *Y_prepare_down* 中释放。如果在
-注册过程中å‘生错误,返回值 *ret* 为负值。å¦åˆ™ä¼šè¿”回一个正值,其中包å«åŠ¨æ€åˆ†é…状æ€
-( *CPUHP_AP_ONLINE_DYN* )的分é…热拔æ’。对于预定义的状æ€ï¼Œå®ƒå°†è¿”回0。
+这些函数在处ç†å·²æ³¨å†Œå›žè°ƒçš„æ–¹å¼ä¸Šæœ‰æ‰€ä¸åŒ:
-该回调å¯ä»¥é€šè¿‡è°ƒç”¨ ``cpuhp_remove_state()`` æ¥åˆ é™¤ã€‚如果是动æ€åˆ†é…的状æ€
-( *CPUHP_AP_ONLINE_DYN* ),则使用返回的状æ€ã€‚在移除热æ’拔状æ€çš„过程中,将调用拆解回调。
+ * cpuhp_state_add_instance_nocalls()åªå°†å®žä¾‹æ·»åŠ åˆ°å¤šå®žä¾‹çŠ¶æ€çš„节点列表中。
-多个实例
-~~~~~~~~
+ * cpuhp_state_add_instance()为所有当å‰çŠ¶æ€å¤§äºŽ@state的在线CPU添加实例并调用与
+ @state相关的startup回调(如果ä¸æ˜¯NULL)。该回调åªå¯¹å°†è¦æ·»åŠ çš„实例进行调用。
+ æ ¹æ®çŠ¶æ€é˜¶æ®µï¼Œå›žè°ƒè¦ä¹ˆåœ¨å½“å‰çš„CPU上调用(PREPARE阶段),è¦ä¹ˆåœ¨CPU的热æ’拔线
+ 程中调用æ¯ä¸ªåœ¨çº¿CPU(ONLINE阶段)。
-如果一个驱动程åºæœ‰å¤šä¸ªå®žä¾‹ï¼Œå¹¶ä¸”æ¯ä¸ªå®žä¾‹éƒ½éœ€è¦ç‹¬ç«‹æ‰§è¡Œå›žè°ƒï¼Œé‚£ä¹ˆå¾ˆå¯èƒ½åº”该使用
-``multi-state`` 。首先需è¦æ³¨å†Œä¸€ä¸ªå¤šçŠ¶æ€çš„状æ€::
+ 如果CPU N的回调失败,那么CPU 0 ... N-1çš„teardown回调被调用以回滚æ“作,该函数
+ 失败,实例ä¸ä¼šè¢«æ·»åŠ åˆ°å¤šå®žä¾‹çŠ¶æ€çš„节点列表中。
- ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, "X/Y:online,
- Y_online, Y_prepare_down);
- Y_hp_online = ret;
+è¦ä»ŽçŠ¶æ€çš„节点列表中删除一个实例,å¯ä»¥ä½¿ç”¨è¿™äº›å‡½æ•°:
-``cpuhp_setup_state_multi()`` 的行为与 ``cpuhp_setup_state()`` 类似,åªæ˜¯å®ƒ
-为多状æ€å‡†å¤‡äº†å›žè°ƒï¼Œä½†ä¸è°ƒç”¨å›žè°ƒã€‚这是一个一次性的设置。
-一旦分é…了一个新的实例,你需è¦æ³¨å†Œè¿™ä¸ªæ–°å®žä¾‹::
+ * cpuhp_state_remove_instance(state, node)
+ * cpuhp_state_remove_instance_nocalls(state, node)
- ret = cpuhp_state_add_instance(Y_hp_online, &d->node);
+å‚数与上述cpuhp_state_add_instance*()å˜ä½“相åŒã€‚
-这个函数将把这个实例添加到你先å‰åˆ†é…çš„ ``Y_hp_online`` 状æ€ï¼Œå¹¶åœ¨æ‰€æœ‰åœ¨çº¿çš„
-CPU上调用先å‰æ³¨å†Œçš„回调( ``Y_online`` )。 *node* 元素是你的æ¯ä¸ªå®žä¾‹æ•°æ®ç»“æž„
-中的一个 ``struct hlist_node`` æˆå‘˜ã€‚
+这些函数在处ç†å·²æ³¨å†Œå›žè°ƒçš„æ–¹å¼ä¸Šæœ‰æ‰€ä¸åŒ:
-在移除该实例时::
+ * cpuhp_state_remove_instance_nocalls()åªä»ŽçŠ¶æ€çš„节点列表中删除实例。
- cpuhp_state_remove_instance(Y_hp_online, &d->node)
+ * cpuhp_state_remove_instance()删除实例并调用与@state相关的回调(如果ä¸æ˜¯NULL),
+ 用于所有当å‰çŠ¶æ€å¤§äºŽ@state的在线CPU。 该回调åªå¯¹å°†è¦è¢«ç§»é™¤çš„实例进行调用。
+ æ ¹æ®çŠ¶æ€é˜¶æ®µï¼Œå›žè°ƒè¦ä¹ˆåœ¨å½“å‰çš„CPU上调用(PREPARE阶段),è¦ä¹ˆåœ¨CPU的热æ’æ‹”
+ 线程中调用æ¯ä¸ªåœ¨çº¿CPU(ONLINE阶段)。
-应该被调用,这将在所有在线CPU上调用拆分回调。
+ 为了完æˆç§»é™¤å·¥ä½œï¼Œteardown回调ä¸èƒ½å¤±è´¥ã€‚
-手动设置
-~~~~~~~~
+节点列表的添加/删除æ“作和回调调用是针对CPU热拔æ’æ“作进行åºåˆ—化。这些函数ä¸èƒ½åœ¨
+CPU hotplug回调和CPU hotplug读å–é”定区域内使用。
-通常情况下,在注册或移除状æ€æ—¶è°ƒç”¨setupå’Œteamdown回调是很方便的,因为通常在CPU上线
-(下线)和驱动的åˆå§‹è®¾ç½®ï¼ˆå…³é—­ï¼‰æ—¶éœ€è¦æ‰§è¡Œè¯¥æ“作。然而,æ¯ä¸ªæ³¨å†Œå’Œåˆ é™¤åŠŸèƒ½ä¹Ÿæœ‰ä¸€ä¸ª
-_nocallsçš„åŽç¼€ï¼Œå¦‚æžœä¸å¸Œæœ›è°ƒç”¨å›žè°ƒï¼Œåˆ™ä¸è°ƒç”¨æ‰€æ供的回调。在手动设置(或关闭)期间,
-应该使用 ``get_online_cpus()`` å’Œ ``put_online_cpus()`` 函数æ¥æŠ‘制CPU热æ’æ‹”æ“作。
+样例
+----
+在STARTING阶段设置和å–消é™æ€åˆ†é…的状æ€ï¼Œä»¥èŽ·å–上线和下线æ“作的通知::
-事件的顺åº
-----------
+ ret = cpuhp_setup_state(CPUHP_SUBSYS_STARTING, "subsys:starting", subsys_cpu_starting, subsys_cpu_dying);
+ if (ret < 0)
+ return ret;
+ ....
+ cpuhp_remove_state(CPUHP_SUBSYS_STARTING);
-热æ’拔状æ€è¢«å®šä¹‰åœ¨ ``include/linux/cpuhotplug.h``:
+在ONLINE阶段设置和å–消动æ€åˆ†é…的状æ€ï¼Œä»¥èŽ·å–下线æ“作的通知::
-* ``CPUHP_OFFLINE`` ... ``CPUHP_AP_OFFLINE`` 状æ€æ˜¯åœ¨CPUå¯åŠ¨å‰è°ƒç”¨çš„。
+ state = cpuhp_setup_state(CPUHP_ONLINE_DYN, "subsys:offline", NULL, subsys_cpu_offline);
+ if (state < 0)
+ return state;
+ ....
+ cpuhp_remove_state(state);
-* ``CPUHP_AP_OFFLINE`` ... ``CPUHP_AP_ONLINE`` 状æ€æ˜¯åœ¨CPU被å¯åŠ¨åŽè¢«è°ƒç”¨çš„。
- 中断是关闭的,调度程åºè¿˜æ²¡æœ‰åœ¨è¿™ä¸ªCPU上活动。从 ``CPUHP_AP_OFFLINE`` 开始,
- 回调被调用到目标CPU上。
+在ONLINE阶段设置和å–消动æ€åˆ†é…的状æ€ï¼Œä»¥èŽ·å–有关上线æ“作的通知,而无需调用回调::
-* ``CPUHP_AP_ONLINE_DYN`` å’Œ ``CPUHP_AP_ONLINE_DYN_END`` 之间的状æ€è¢«ä¿ç•™
- 给动æ€åˆ†é…。
+ state = cpuhp_setup_state_nocalls(CPUHP_ONLINE_DYN, "subsys:online", subsys_cpu_online, NULL);
+ if (state < 0)
+ return state;
+ ....
+ cpuhp_remove_state_nocalls(state);
-* 这些状æ€åœ¨CPU关闭时以相å的顺åºè°ƒç”¨ï¼Œä»Ž ``CPUHP_ONLINE`` 开始,在 ``CPUHP_OFFLINE``
- åœæ­¢ã€‚这里的回调是在将被关闭的CPU上调用的,直到 ``CPUHP_AP_OFFLINE`` 。
+在ONLINE阶段设置ã€ä½¿ç”¨å’Œå–消动æ€åˆ†é…的多实例状æ€ï¼Œä»¥èŽ·å¾—上线和下线æ“作的通知::
-通过 ``CPUHP_AP_ONLINE_DYN`` 动æ€åˆ†é…的状æ€é€šå¸¸å·²ç»è¶³å¤Ÿäº†ã€‚然而,如果在å¯åŠ¨æˆ–关闭
-期间需è¦æ›´æ—©çš„调用,那么应该获得一个显å¼çŠ¶æ€ã€‚如果热拔æ’事件需è¦ç›¸å¯¹äºŽå¦ä¸€ä¸ªçƒ­æ‹”æ’事
-件的特定排åºï¼Œä¹Ÿå¯èƒ½éœ€è¦ä¸€ä¸ªæ˜¾å¼çŠ¶æ€ã€‚
+ state = cpuhp_setup_state_multi(CPUHP_ONLINE_DYN, "subsys:online", subsys_cpu_online, subsys_cpu_offline);
+ if (state < 0)
+ return state;
+ ....
+ ret = cpuhp_state_add_instance(state, &inst1->node);
+ if (ret)
+ return ret;
+ ....
+ ret = cpuhp_state_add_instance(state, &inst2->node);
+ if (ret)
+ return ret;
+ ....
+ cpuhp_remove_instance(state, &inst1->node);
+ ....
+ cpuhp_remove_instance(state, &inst2->node);
+ ....
+ remove_multi_state(state);
测试热拔æ’状æ€
==============
diff --git a/Documentation/translations/zh_CN/core-api/generic-radix-tree.rst b/Documentation/translations/zh_CN/core-api/generic-radix-tree.rst
new file mode 100644
index 000000000000..eacd1d2ebddc
--- /dev/null
+++ b/Documentation/translations/zh_CN/core-api/generic-radix-tree.rst
@@ -0,0 +1,23 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/core-api/generic-radix-tree.rst
+
+:翻译:
+
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
+
+===================
+通用基数树/稀ç–数组
+===================
+
+通用基数树/稀ç–数组的相关内容请è§include/linux/generic-radix-tree.h文件中的
+“DOC: Generic radix trees/sparse arraysâ€ã€‚
+
+通用基数树函数
+--------------
+
+该API在以下内核代ç ä¸­:
+
+include/linux/generic-radix-tree.h
diff --git a/Documentation/translations/zh_CN/core-api/idr.rst b/Documentation/translations/zh_CN/core-api/idr.rst
new file mode 100644
index 000000000000..97a16e76b81b
--- /dev/null
+++ b/Documentation/translations/zh_CN/core-api/idr.rst
@@ -0,0 +1,80 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/core-api/idr.rst
+
+:翻译:
+
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
+
+:校译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ å´æƒ³æˆ Wu Xiangcheng <bobwxc@email.cn>
+ 时奎亮 Alex Shi <alexs@kernel.org>
+
+======
+ID分é…
+======
+
+:作者: Matthew Wilcox
+
+概述
+====
+
+è¦è§£å†³çš„一个常è§é—®é¢˜æ˜¯åˆ†é…标识符(IDs);它通常是标识事物的数字。比如包括文件æè¿°
+符ã€è¿›ç¨‹IDã€ç½‘络å议中的数æ®åŒ…标识符ã€SCSI标记和设备实例编å·ã€‚IDRå’ŒIDA为这个问题
+æ供了一个åˆç†çš„解决方案,以é¿å…æ¯ä¸ªäººéƒ½è‡ªåˆ›ã€‚IDRæ供将ID映射到指针的能力,而IDA
+ä»…æä¾›ID分é…,因此内存效率更高。
+
+IDR接å£å·²ç»è¢«åºŸå¼ƒï¼Œè¯·ä½¿ç”¨ ``XArray`` 。
+
+IDR的用法
+=========
+
+首先åˆå§‹åŒ–一个IDR,对于é™æ€åˆ†é…çš„IDR使用DEFINE_IDR(),或者对于动æ€åˆ†é…çš„IDR使用
+idr_init()。
+
+您å¯ä»¥è°ƒç”¨idr_alloc()æ¥åˆ†é…一个未使用的ID。通过调用idr_find()查询与该ID相关的指针,
+并通过调用idr_remove()释放该ID。
+
+如果需è¦æ›´æ”¹ä¸Žä¸€ä¸ªID相关è”的指针,å¯ä»¥è°ƒç”¨idr_replace()。这样åšçš„一个常è§åŽŸå› æ˜¯é€š
+过将 ``NULL`` 指针传递给分é…函数æ¥ä¿ç•™ID;用ä¿ç•™çš„IDåˆå§‹åŒ–对象,最åŽå°†åˆå§‹åŒ–的对
+象æ’å…¥IDR。
+
+一些用户需è¦åˆ†é…大于 ``INT_MAX`` çš„ID。到目å‰ä¸ºæ­¢ï¼Œæ‰€æœ‰è¿™äº›ç”¨æˆ·éƒ½æ»¡è¶³ ``UINT_MAX``
+çš„é™åˆ¶ï¼Œä»–们使用idr_alloc_u32()。如果您需è¦è¶…出u32çš„ID,我们将与您åˆä½œä»¥æ»¡è¶³æ‚¨çš„
+需求。
+
+如果需è¦æŒ‰é¡ºåºåˆ†é…ID,å¯ä»¥ä½¿ç”¨idr_alloc_cyclic()。处ç†è¾ƒå¤§æ•°é‡çš„ID时,IDR的效率会
+é™ä½Žï¼Œæ‰€ä»¥ä½¿ç”¨è¿™ä¸ªå‡½æ•°ä¼šæœ‰ä¸€ç‚¹ä»£ä»·ã€‚
+
+è¦å¯¹IDR使用的所有指针进行æ“作,您å¯ä»¥ä½¿ç”¨åŸºäºŽå›žè°ƒçš„idr_for_each()或迭代器样å¼çš„
+idr_for_each_entry()。您å¯èƒ½éœ€è¦ä½¿ç”¨idr_for_each_entry_continue()æ¥ç»§ç»­è¿­ä»£ã€‚如果
+迭代器ä¸ç¬¦åˆæ‚¨çš„需求,您也å¯ä»¥ä½¿ç”¨idr_get_next()。
+
+当使用完IDRåŽï¼Œæ‚¨å¯ä»¥è°ƒç”¨idr_destroy()æ¥é‡Šæ”¾IDRå ç”¨çš„内存。这并ä¸ä¼šé‡Šæ”¾IDR指å‘çš„
+对象;如果您想这样åšï¼Œè¯·ä½¿ç”¨å…¶ä¸­ä¸€ä¸ªè¿­ä»£å™¨æ¥æ‰§è¡Œæ­¤æ“作。
+
+您å¯ä»¥ä½¿ç”¨idr_is_empty()æ¥æŸ¥çœ‹å½“å‰æ˜¯å¦åˆ†é…了任何ID。
+
+如果在从IDR分é…一个新ID时需è¦å¸¦é”,您å¯èƒ½éœ€è¦ä¼ é€’一组é™åˆ¶æ€§çš„GFP标志,但这å¯èƒ½å¯¼
+致IDR无法分é…内存。为了解决该问题,您å¯ä»¥åœ¨èŽ·å–é”之å‰è°ƒç”¨idr_preload(),然åŽåœ¨åˆ†
+é…之åŽè°ƒç”¨idr_preload_end()。
+
+IDRåŒæ­¥çš„相关内容请è§include/linux/idr.h文件中的“DOC: idr syncâ€ã€‚
+
+IDA的用法
+=========
+
+IDA的用法的相关内容请è§lib/idr.c文件中的“DOC: IDA descriptionâ€ã€‚
+
+函数和数æ®ç»“æž„
+==============
+
+该API在以下内核代ç ä¸­:
+
+include/linux/idr.h
+
+lib/idr.c
diff --git a/Documentation/translations/zh_CN/core-api/index.rst b/Documentation/translations/zh_CN/core-api/index.rst
index 26d9913fc8b6..37756d240b5e 100644
--- a/Documentation/translations/zh_CN/core-api/index.rst
+++ b/Documentation/translations/zh_CN/core-api/index.rst
@@ -28,6 +28,7 @@
printk-basics
printk-formats
workqueue
+ watch_queue
symbol-namespaces
æ•°æ®ç»“构和低级实用程åº
@@ -43,16 +44,15 @@
assoc_array
xarray
rbtree
+ idr
+ circular-buffers
+ generic-radix-tree
+ packing
Todolist:
- idr
- circular-buffers
- generic-radix-tree
- packing
- bus-virt-phys-mapping
this_cpu_ops
timekeeping
errseq
@@ -101,7 +101,7 @@ Todolist:
========
如何在内核中分é…和使用内存。请注æ„,在
-:doc:`/vm/index` 中有更多的内存管ç†æ–‡æ¡£ã€‚
+:doc:`/mm/index` 中有更多的内存管ç†æ–‡æ¡£ã€‚
.. toctree::
:maxdepth: 1
diff --git a/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst b/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
index 7d077742f758..9174fce12c1b 100644
--- a/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
+++ b/Documentation/translations/zh_CN/core-api/irq/irq-domain.rst
@@ -5,6 +5,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
.. _cn_irq-domain.rst:
@@ -52,8 +53,18 @@ irq_domain和一个hwirqå·ä½œä¸ºå‚数。 如果hwirq的映射还ä¸å­˜åœ¨ï¼Œé‚
一个新的Linux irq_desc,将其与hwirqå…³è”èµ·æ¥ï¼Œå¹¶è°ƒç”¨.map()回调,这样驱动
程åºå°±å¯ä»¥æ‰§è¡Œä»»ä½•å¿…è¦çš„硬件设置。
-当接收到一个中断时,应该使用irq_find_mapping()函数从hwirqå·ä¸­æ‰¾åˆ°
-Linux IRQå·ã€‚
+一旦建立了映射,å¯ä»¥é€šè¿‡å¤šç§æ–¹æ³•æ£€ç´¢æˆ–使用它:
+
+- irq_resolve_mapping()返回一个指å‘给定域和hwirqå·çš„irq_desc结构指针,
+ 如果没有映射则返回NULL。
+
+- irq_find_mapping()返回给定域和hwirqçš„Linux IRQå·ï¼Œå¦‚果没有映射则返回0。
+
+- irq_linear_revmap()现与irq_find_mapping()相åŒï¼Œå·²è¢«åºŸå¼ƒã€‚
+
+- generic_handle_domain_irq()处ç†ä¸€ä¸ªç”±åŸŸå’Œhwirqå·æ述的中断。
+
+请注æ„,irq域的查找必须å‘生在与RCU读临界区兼容的上下文中。
在调用irq_find_mapping()之å‰ï¼Œè‡³å°‘è¦è°ƒç”¨ä¸€æ¬¡irq_create_mapping()函数,
以å…æ述符ä¸èƒ½è¢«åˆ†é…。
@@ -119,7 +130,8 @@ irq_domain_add_tree()å’Œirq_domain_create_tree()在功能上是等价的,除äº
Linux IRQå·ç¼–入硬件本身,这样就ä¸éœ€è¦æ˜ å°„了。 调用irq_create_direct_mapping()
会分é…一个Linux IRQå·ï¼Œå¹¶è°ƒç”¨.map()回调,这样驱动就å¯ä»¥å°†Linux IRQå·ç¼–入硬件中。
-大多数驱动程åºä¸èƒ½ä½¿ç”¨è¿™ä¸ªæ˜ å°„。
+大多数驱动程åºæ— æ³•ä½¿ç”¨æ­¤æ˜ å°„,现在它由CONFIG_IRQ_DOMAIN_NOMAP选项控制。
+请ä¸è¦å¼•å…¥æ­¤API的新用户。
传统映射类型
------------
@@ -128,7 +140,6 @@ Linux IRQå·ç¼–入硬件本身,这样就ä¸éœ€è¦æ˜ å°„了。 调用irq_create
irq_domain_add_simple()
irq_domain_add_legacy()
- irq_domain_add_legacy_isa()
irq_domain_create_simple()
irq_domain_create_legacy()
@@ -137,6 +148,9 @@ Linux IRQå·ç¼–入硬件本身,这样就ä¸éœ€è¦æ˜ å°„了。 调用irq_create
一组用于IRQå·çš„定义(#define),这些定义被传递给struct设备注册。 在这ç§æƒ…况下,
ä¸èƒ½åŠ¨æ€åˆ†é…Linux IRQå·ï¼Œåº”该使用传统映射。
+顾åæ€ä¹‰ï¼Œ\*_legacy()系列函数已被废弃,åªæ˜¯ä¸ºäº†æ–¹ä¾¿å¯¹å¤è€å¹³å°çš„支æŒè€Œå­˜åœ¨ã€‚
+ä¸åº”该增加新的用户。当\*_simple()系列函数的使用导致é—留行为时,他们也是如此。
+
传统映射å‡è®¾å·²ç»ä¸ºæŽ§åˆ¶å™¨åˆ†é…了一个连续的IRQå·èŒƒå›´ï¼Œå¹¶ä¸”å¯ä»¥é€šè¿‡å‘hwirqå·æ·»åŠ ä¸€
个固定的å移æ¥è®¡ç®—IRQå·ï¼Œå之亦然。 缺点是需è¦ä¸­æ–­æŽ§åˆ¶å™¨ç®¡ç†IRQ分é…,并且需è¦ä¸ºæ¯
个hwirq分é…一个irq_desc,å³ä½¿å®ƒæ²¡æœ‰è¢«ä½¿ç”¨ã€‚
diff --git a/Documentation/translations/zh_CN/core-api/kernel-api.rst b/Documentation/translations/zh_CN/core-api/kernel-api.rst
index 962d31d019d7..c22662679065 100644
--- a/Documentation/translations/zh_CN/core-api/kernel-api.rst
+++ b/Documentation/translations/zh_CN/core-api/kernel-api.rst
@@ -5,6 +5,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
.. _cn_kernel-api.rst:
@@ -282,6 +283,8 @@ kernel/acct.c
该API在以下内核代ç ä¸­:
+include/linux/bio.h
+
block/blk-core.c
block/blk-core.c
diff --git a/Documentation/translations/zh_CN/core-api/mm-api.rst b/Documentation/translations/zh_CN/core-api/mm-api.rst
index 0ea43dc67953..a732b0eebf16 100644
--- a/Documentation/translations/zh_CN/core-api/mm-api.rst
+++ b/Documentation/translations/zh_CN/core-api/mm-api.rst
@@ -5,6 +5,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
:校译:
@@ -66,12 +67,24 @@ mm/vmalloc.c
该API在以下内核代ç ä¸­:
-mm/readahead.c
+文件映射
+--------
mm/filemap.c
+预读
+----
+
+mm/readahead.c
+
+回写
+----
+
mm/page-writeback.c
+截断
+----
+
mm/truncate.c
include/linux/pagemap.h
@@ -105,6 +118,14 @@ mm/mempolicy.c
include/linux/mm_types.h
+include/linux/mm_inline.h
+
+include/linux/page-flags.h
+
include/linux/mm.h
+include/linux/page_ref.h
+
include/linux/mmzone.h
+
+mm/util.c
diff --git a/Documentation/translations/zh_CN/core-api/packing.rst b/Documentation/translations/zh_CN/core-api/packing.rst
new file mode 100644
index 000000000000..c0aab3a349d0
--- /dev/null
+++ b/Documentation/translations/zh_CN/core-api/packing.rst
@@ -0,0 +1,160 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/core-api/packing.rst
+
+:翻译:
+
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
+
+:校译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ å´æƒ³æˆ Wu Xiangcheng <bobwxc@email.cn>
+ 时奎亮 Alex Shi <alexs@kernel.org>
+
+========================
+通用的ä½åŸŸæ‰“包和解包函数
+========================
+
+问题陈述
+--------
+
+使用硬件时,必须在几ç§ä¸Žå…¶äº¤äº’的方法之间进行选择。
+
+å¯ä»¥å°†æŒ‡é’ˆæ˜ å°„到在硬件设备的内存区上精心设计的结构体,并将其字段作为结构æˆå‘˜ï¼ˆå¯
+能声明为ä½åŸŸï¼‰è®¿é—®ã€‚但是由于CPU和硬件设备之间潜在的字节顺åºä¸åŒ¹é…,以这ç§æ–¹å¼ç¼–写
+代ç ä¼šé™ä½Žå…¶å¯ç§»æ¤æ€§ã€‚
+
+此外,必须密切注æ„将硬件文档中的寄存器定义转æ¢ä¸ºç»“æž„çš„ä½åŸŸç´¢å¼•ã€‚此外,一些硬件
+(通常是网络设备)倾å‘于以è¿å任何åˆç†å­—边界(有时甚至是64ä½ï¼‰çš„æ–¹å¼å¯¹å…¶å¯„存器字
+段进行分组。这就造æˆäº†ä¸å¾—ä¸åœ¨ç»“构中定义寄存器字段的“高â€å’Œâ€œä½Žâ€éƒ¨åˆ†çš„ä¸ä¾¿ã€‚
+
+结构域定义的更å¯é çš„替代方法是通过移动适当数é‡çš„ä½æ¥æå–所需的字段。但这ä»ç„¶ä¸èƒ½
+防止字节顺åºä¸åŒ¹é…,除éžæ‰€æœ‰å†…存访问都是é€å­—节执行的。此外,代ç å¾ˆå®¹æ˜“å˜å¾—æ‚乱无
+章,åŒæ—¶å¯èƒ½ä¼šåœ¨æ‰€éœ€çš„许多ä½ç§»æ“作中丢失一些高层次的想法。
+
+许多驱动程åºé‡‡ç”¨äº†ä½ç§»çš„方法,然åŽè¯•å›¾ç”¨å®šåˆ¶çš„å®æ¥å‡å°‘æ‚乱无章的东西,但更多的时
+候,这些å®æ‰€é‡‡ç”¨çš„æ·å¾„ä¾æ—§å¦¨ç¢äº†ä»£ç çœŸæ­£çš„å¯ç§»æ¤æ€§ã€‚
+
+解决方案
+--------
+
+该API涉åŠ2个基本æ“作:
+
+ - 将一个CPUå¯ä½¿ç”¨çš„数字打包到内存缓冲区中(具有硬件约æŸ/特殊性)。
+ - 将内存缓冲区(具有硬件约æŸ/特殊性)解压缩为一个CPUå¯ä½¿ç”¨çš„数字。
+
+该APIæ供了对所述硬件约æŸå’Œç‰¹æ®Šæ€§ä»¥åŠCPU字节åºçš„抽象,因此这两者之间å¯èƒ½ä¸åŒ¹é…。
+
+这些API函数的基本å•å…ƒæ˜¯u64。从CPU的角度æ¥çœ‹ï¼Œä½63总是æ„味ç€å­—节7çš„ä½å移é‡7,尽管
+åªæ˜¯é€»è¾‘上的。问题是:我们将这个比特放在内存的什么ä½ç½®ï¼Ÿ
+
+以下示例介ç»äº†æ‰“包u64字段的内存布局。打包缓冲区中的字节å移é‡å§‹ç»ˆé»˜è®¤ä¸º0,1...7。
+示例显示的是逻辑字节和ä½æ‰€åœ¨çš„ä½ç½®ã€‚
+
+1. 通常情况下(无特殊性),我们会这样åšï¼š
+
+::
+
+ 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
+ 7 6 5 4
+ 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+ 3 2 1 0
+
+也就是说,CPUå¯ä½¿ç”¨çš„u64çš„MSByte(7)ä½äºŽå†…å­˜å移é‡0处,而u64çš„LSByte(0)ä½äºŽå†…å­˜å移é‡7处。
+
+这对应于大多数人认为的“大端â€ï¼Œå…¶ä¸­ä½i对应于数字2^i。这在代ç æ³¨é‡Šä¸­ä¹Ÿç§°ä¸ºâ€œé€»è¾‘â€ç¬¦å·ã€‚
+
+
+2. 如果设置了QUIRK_MSB_ON_THE_RIGHT,我们按如下方å¼æ“作:
+
+::
+
+ 56 57 58 59 60 61 62 63 48 49 50 51 52 53 54 55 40 41 42 43 44 45 46 47 32 33 34 35 36 37 38 39
+ 7 6 5 4
+ 24 25 26 27 28 29 30 31 16 17 18 19 20 21 22 23 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7
+ 3 2 1 0
+
+也就是说,QUIRK_MSB_ON_THE_RIGHTä¸ä¼šå½±å“字节定ä½ï¼Œä½†ä¼šå转字节内的ä½å移é‡ã€‚
+
+
+3. 如果设置了QUIRK_LITTLE_ENDIAN,我们按如下方å¼æ“作:
+
+::
+
+ 39 38 37 36 35 34 33 32 47 46 45 44 43 42 41 40 55 54 53 52 51 50 49 48 63 62 61 60 59 58 57 56
+ 4 5 6 7
+ 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24
+ 0 1 2 3
+
+因此,QUIRK_LITTLE_ENDIANæ„味ç€åœ¨å†…存区域内,æ¯ä¸ª4字节的字的æ¯ä¸ªå­—节都被放置在与
+该字的边界相比的镜åƒä½ç½®ã€‚
+
+
+4. 如果设置了QUIRK_MSB_ON_THE_RIGHTå’ŒQUIRK_LITTLE_ENDIAN,我们这样åšï¼š
+
+::
+
+ 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
+ 4 5 6 7
+ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+ 0 1 2 3
+
+
+5. 如果åªè®¾ç½®äº†QUIRK_LSW32_IS_FIRST,我们这样åšï¼š
+
+::
+
+ 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+ 3 2 1 0
+ 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32
+ 7 6 5 4
+
+在这ç§æƒ…况下,8字节内存区域解释如下:å‰4字节对应最ä¸é‡è¦çš„4字节的字,åŽ4字节对应
+æ›´é‡è¦çš„4字节的字。
+
+6. 如果设置了QUIRK_LSW32_IS_FIRSTå’ŒQUIRK_MSB_ON_THE_RIGHT,我们这样åšï¼š
+
+::
+
+ 24 25 26 27 28 29 30 31 16 17 18 19 20 21 22 23 8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7
+ 3 2 1 0
+ 56 57 58 59 60 61 62 63 48 49 50 51 52 53 54 55 40 41 42 43 44 45 46 47 32 33 34 35 36 37 38 39
+ 7 6 5 4
+
+
+7. 如果设置了QUIRK_LSW32_IS_FIRST和QUIRK_LITTLE_ENDIAN,则如下所示:
+
+::
+
+ 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24
+ 0 1 2 3
+ 39 38 37 36 35 34 33 32 47 46 45 44 43 42 41 40 55 54 53 52 51 50 49 48 63 62 61 60 59 58 57 56
+ 4 5 6 7
+
+
+8. 如果设置了QUIRK_LSW32_IS_FIRST,QUIRK_LITTLE_ENDIAN和QUIRK_MSB_ON_THE_RIGHT,
+ 则如下所示:
+
+::
+
+ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
+ 0 1 2 3
+ 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
+ 4 5 6 7
+
+
+我们总是认为我们的å移é‡å¥½åƒæ²¡æœ‰ç‰¹æ®Šæ€§ï¼Œç„¶åŽåœ¨è®¿é—®å†…存区域之å‰ç¿»è¯‘它们。
+
+预期用途
+--------
+
+选择使用该API的驱动程åºé¦–先需è¦ç¡®å®šä¸Šè¿°3ç§quirk组åˆï¼ˆå…±8ç§ï¼‰ä¸­çš„哪一ç§ä¸Žç¡¬ä»¶æ–‡æ¡£
+中æ述的相匹é…。然åŽï¼Œä»–们应该å°è£…packing()函数,创建一个新的xxx_packing(),使用
+适当的QUIRK_* one-hot ä½é›†åˆæ¥è°ƒç”¨å®ƒã€‚
+
+packing()函数返回一个int类型的错误ç ï¼Œä»¥é˜²æ­¢ç¨‹åºå‘˜ä½¿ç”¨ä¸æ­£ç¡®çš„API。这些错误预计ä¸
+会在è¿è¡Œæ—¶å‘生,因此xxx_packing()返回void并简å•åœ°æŽ¥å—这些错误是åˆç†çš„。它å¯ä»¥é€‰æ‹©
+转储栈或打å°é”™è¯¯æ述。
diff --git a/Documentation/translations/zh_CN/core-api/printk-basics.rst b/Documentation/translations/zh_CN/core-api/printk-basics.rst
index d574de3167c8..59c6efb3fc41 100644
--- a/Documentation/translations/zh_CN/core-api/printk-basics.rst
+++ b/Documentation/translations/zh_CN/core-api/printk-basics.rst
@@ -6,6 +6,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
.. _cn_printk-basics.rst:
@@ -107,6 +108,4 @@ pr_debug()å’Œpr_devel(),除éžå®šä¹‰äº† ``DEBUG`` (或者在pr_debug()的情å†
该API在以下内核代ç ä¸­:
-kernel/printk/printk.c
-
include/linux/printk.h
diff --git a/Documentation/translations/zh_CN/core-api/printk-formats.rst b/Documentation/translations/zh_CN/core-api/printk-formats.rst
index ce39c788cf5a..bd36d35eba4e 100644
--- a/Documentation/translations/zh_CN/core-api/printk-formats.rst
+++ b/Documentation/translations/zh_CN/core-api/printk-formats.rst
@@ -5,6 +5,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
.. _cn_printk-formats.rst:
@@ -548,7 +549,7 @@ nodemask_pr_args()æ¥æ–¹ä¾¿æ‰“å°cpumaskå’Œnodemask。
::
- %pGp referenced|uptodate|lru|active|private|node=0|zone=2|lastcpupid=0x1fffff
+ %pGp 0x17ffffc0002036(referenced|uptodate|lru|active|private|node=0|zone=2|lastcpupid=0x1fffff)
%pGg GFP_USER|GFP_DMA32|GFP_NOWARN
%pGv read|exec|mayread|maywrite|mayexec|denywrite
diff --git a/Documentation/translations/zh_CN/core-api/watch_queue.rst b/Documentation/translations/zh_CN/core-api/watch_queue.rst
new file mode 100644
index 000000000000..23b17ae2e4e2
--- /dev/null
+++ b/Documentation/translations/zh_CN/core-api/watch_queue.rst
@@ -0,0 +1,313 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/core-api/watch_queue.rst
+
+:翻译:
+
+周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
+
+:校译:
+
+å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+å´æƒ³æˆ Wu Xiangcheng <bobwxc@email.cn>
+
+
+============
+通用通知机制
+============
+
+通用通知机制是建立在标准管é“驱动之上的,它å¯ä»¥æœ‰æ•ˆåœ°å°†æ¥è‡ªå†…核的通知消æ¯æ‹¼æŽ¥åˆ°ç”¨
+户空间打开的管é“中。这å¯ä»¥ä¸Žä»¥ä¸‹æ–¹é¢ç»“åˆä½¿ç”¨::
+
+ * Key/keyring 通知
+
+通知缓冲区å¯ä»¥é€šè¿‡ä»¥ä¸‹æ–¹å¼å¯ç”¨ï¼š
+
+ “General setupâ€/“General notification queueâ€
+ (CONFIG_WATCH_QUEUE)
+
+文档包å«ä»¥ä¸‹ç« èŠ‚:
+
+.. contents:: :local:
+
+
+概述
+====
+
+该设施以一ç§ç‰¹æ®Šæ¨¡å¼æ‰“开的管é“å½¢å¼å‡ºçŽ°ï¼Œç®¡é“的内部环形缓冲区用于ä¿å­˜å†…核生æˆçš„消
+æ¯ã€‚然åŽé€šè¿‡read()读出这些消æ¯ã€‚在此类管é“上ç¦ç”¨æ‹¼æŽ¥ä»¥åŠç±»ä¼¼çš„æ“作,因为它们希望
+在æŸäº›æƒ…况下将其添加的内容还原到环中-è¿™å¯èƒ½æœ€ç»ˆä¼šä¸Žé€šçŸ¥æ¶ˆæ¯é‡å ã€‚
+
+管é“的所有者必须告诉内核它想通过该管é“观察哪些æºã€‚åªæœ‰è¿žæŽ¥åˆ°è¯¥ç®¡é“上的æºæ‰ä¼šå°†æ¶ˆ
+æ¯æ’入其中。请注æ„,一个æºå¯èƒ½ç»‘定到多个管é“,并åŒæ—¶å°†æ¶ˆæ¯æ’入到所有管é“中。
+
+还å¯ä»¥å°†è¿‡æ»¤å™¨æ”¾ç½®åœ¨ç®¡é“上,以便在ä¸æ„Ÿå…´è¶£æ—¶å¯ä»¥å¿½ç•¥æŸäº›æºç±»åž‹å’Œå­äº‹ä»¶ã€‚
+
+如果环中没有å¯ç”¨çš„æ’槽,或者没有预分é…的消æ¯ç¼“冲区å¯ç”¨ï¼Œåˆ™å°†ä¸¢å¼ƒæ¶ˆæ¯ã€‚在这两ç§æƒ…
+况下,read()都会在读å–缓冲区中当å‰çš„最åŽä¸€æ¡æ¶ˆæ¯åŽï¼Œå°†WATCH_META_LOSS_NOTIFICATION
+æ’入到输出缓冲区中。
+
+请注æ„,当生æˆä¸€ä¸ªé€šçŸ¥æ—¶ï¼Œå†…æ ¸ä¸ä¼šç­‰å¾…消费者收集它,而是继续执行。这æ„味ç€å¯ä»¥åœ¨
+æŒæœ‰è‡ªæ—‹é”çš„åŒæ—¶ç”Ÿæˆé€šçŸ¥ï¼Œå¹¶ä¸”还å¯ä»¥ä¿æŠ¤å†…æ ¸ä¸è¢«ç”¨æˆ·ç©ºé—´æ•…障无é™æœŸåœ°é˜»ç¢ã€‚
+
+
+消æ¯ç»“æž„
+========
+
+通知消æ¯ç”±ä¸€ä¸ªç®€çŸ­çš„头部开始::
+
+ struct watch_notification {
+ __u32 type:24;
+ __u32 subtype:8;
+ __u32 info;
+ };
+
+“typeâ€è¡¨ç¤ºé€šçŸ¥è®°å½•çš„æ¥æºï¼Œâ€œsubtypeâ€è¡¨ç¤ºè¯¥æ¥æºçš„记录类型(è§ä¸‹æ–‡è§‚测æºç« èŠ‚)。该类
+型也å¯ä»¥æ˜¯â€œWATCH_TYPE_METAâ€ã€‚这是一个由观测队列本身在内部生æˆçš„特殊记录类型。有两
+个å­ç±»åž‹ï¼š
+
+ * WATCH_META_REMOVAL_NOTIFICATION
+ * WATCH_META_LOSS_NOTIFICATION
+
+第一个表示安装了观察的对象已被删除或销æ¯ï¼Œç¬¬äºŒä¸ªè¡¨ç¤ºæŸäº›æ¶ˆæ¯å·²ä¸¢å¤±ã€‚
+
+“infoâ€è¡¨ç¤ºä¸€ç³»åˆ—东西,包括:
+
+ * 消æ¯çš„长度,以字节为å•ä½ï¼ŒåŒ…括头(带有WATCH_INFO_LENGTH的掩ç ï¼Œå¹¶æŒ‰
+ WATCH_INFO_LENGTH__SHIFT移ä½ï¼‰ã€‚这表示记录的大å°ï¼Œå¯èƒ½åœ¨8到127字节之间。
+
+ * 观测ID(带有WATCH_INFO_ID掩ç ï¼Œå¹¶æŒ‰WATCH_INFO_ID__SHIFT移ä½ï¼‰ã€‚这表示观测的主
+ å«ID,å¯èƒ½åœ¨0到255之间。多个观测组å¯ä»¥å…±äº«ä¸€ä¸ªé˜Ÿåˆ—,这æ供了一ç§åŒºåˆ†å®ƒä»¬çš„方法。
+
+ * 特定类型的字段(WATCH_INFO_TYPE_INFO)。这是由通知生产者设置的,以指示类型和
+ å­ç±»åž‹çš„æŸäº›ç‰¹å®šå«ä¹‰ã€‚
+
+除长度外,信æ¯ä¸­çš„所有内容都å¯ä»¥ç”¨äºŽè¿‡æ»¤ã€‚
+
+头部åŽé¢å¯ä»¥æœ‰è¡¥å……ä¿¡æ¯ã€‚此格å¼æ˜¯ç”±ç±»åž‹å’Œå­ç±»åž‹å†³å®šçš„。
+
+
+观测列表(通知æºï¼‰API
+=====================
+
+“观测列表“是订阅通知æºçš„观测者的列表。列表å¯ä»¥é™„加到对象(比如键或超级å—),也å¯
+以是全局的(比如对于设备事件)。从用户空间的角度æ¥çœ‹ï¼Œä¸€ä¸ªéžå…¨å±€çš„观测列表通常是
+通过引用它所属的对象æ¥å¼•ç”¨çš„(比如使用KEYCTL_NOTIFY并给它一个密钥åºåˆ—å·æ¥è§‚测特定
+的密钥)。
+
+为了管ç†è§‚测列表,æ供了以下函数:
+
+ * ::
+
+ void init_watch_list(struct watch_list *wlist,
+ void (*release_watch)(struct watch *wlist));
+
+ åˆå§‹åŒ–一个观测列表。 如果 ``release_watch`` ä¸æ˜¯NULL,那么这表示当watch_list对
+ 象被销æ¯æ—¶ï¼Œåº”该调用函数æ¥ä¸¢å¼ƒè§‚测列表对被观测对象的任何引用。
+
+ * ``void remove_watch_list(struct watch_list *wlist);``
+
+ 这将删除订阅watch_list的所有观测,并释放它们,然åŽé”€æ¯watch_list对象本身。
+
+
+观测队列(通知输出)API
+=======================
+
+“观测队列â€æ˜¯ç”±åº”用程åºåˆ†é…的用以记录通知的缓冲区,其工作原ç†å®Œå…¨éšè—在管é“设备驱
+动中,但必须获得对它的引用æ‰èƒ½è®¾ç½®è§‚测。å¯ä»¥é€šè¿‡ä»¥ä¸‹æ–¹å¼è¿›è¡Œç®¡ç†ï¼š
+
+ * ``struct watch_queue *get_watch_queue(int fd);``
+
+ 由于观测队列在内核中通过实现缓冲区的管é“的文件æ述符表示,用户空间必须通过系
+ 统调用传递该文件æ述符,这å¯ä»¥ç”¨äºŽä»Žç³»ç»Ÿè°ƒç”¨ä¸­æŸ¥æ‰¾æŒ‡å‘观测队列的ä¸é€æ˜ŽæŒ‡é’ˆã€‚
+
+ * ``void put_watch_queue(struct watch_queue *wqueue);``
+
+ 该函数用以丢弃从 ``get_watch_queue()`` 获得的引用。
+
+
+观测订阅API
+===========
+
+“观测â€æ˜¯è§‚测列表上的订阅,表示观测队列,从而表示应写入通知记录的缓冲区。观测队列
+对象还å¯ä»¥æºå¸¦è¯¥å¯¹è±¡çš„过滤规则,由用户空间设置。watch结构体的æŸäº›éƒ¨åˆ†å¯ä»¥ç”±é©±åŠ¨ç¨‹
+åºè®¾ç½®::
+
+ struct watch {
+ union {
+ u32 info_id; /* 在info字段中进行ORè¿ç®—çš„ID */
+ ...
+ };
+ void *private; /* 被观测对象的ç§æœ‰æ•°æ® */
+ u64 id; /* 内部标识符 */
+ ...
+ };
+
+``info_id`` 值是从用户空间获得并按WATCH_INFO_ID__SHIFT移ä½çš„8ä½æ•°å­—。当通知写入关
+è”的观测队列缓冲区时,这将与struct watch_notification::infoçš„WATCH_INFO_ID字段进
+行或è¿ç®—。
+
+``private`` 字段是与watch_list相关è”的驱动程åºæ•°æ®ï¼Œå¹¶ç”± ``watch_list::release_watch()``
+函数清除。
+
+``id`` 字段是æºçš„ID。使用ä¸åŒIDå‘布的通知将被忽略。
+
+æ供以下函数æ¥ç®¡ç†è§‚测:
+
+ * ``void init_watch(struct watch *watch, struct watch_queue *wqueue);``
+
+ åˆå§‹åŒ–一个观测对象,把它的指针设置到观察队列中,使用适当的é™åˆ¶æ¥é¿å…æ­»é”。
+
+ * ``int add_watch_to_object(struct watch *watch, struct watch_list *wlist);``
+
+ 将观测订阅到观测列表(通知æºï¼‰ã€‚watch结构体中的driver-settable字段必须在调用
+ 它之å‰è®¾ç½®ã€‚
+
+ * ::
+
+ int remove_watch_from_object(struct watch_list *wlist,
+ struct watch_queue *wqueue,
+ u64 id, false);
+
+ 从观测列表中删除一个观测,该观测必须与指定的观测队列(``wqueue``)和对象标识
+ 符(``id``)匹é…。通知(``WATCH_META_REMOVAL_NOTIFICATION``)被å‘é€åˆ°è§‚测队列
+ 表示该观测已被删除。
+
+ * ``int remove_watch_from_object(struct watch_list *wlist, NULL, 0, true);``
+
+ 从观测列表中删除所有观测。预计这将被称为销æ¯å‰çš„准备工作,届时新的观测将无法
+ 访问观测列表。通知(``WATCH_META_REMOVAL_NOTIFICATION``)被å‘é€åˆ°æ¯ä¸ªè®¢é˜…观测
+ 的观测队列,以表明该观测已被删除。
+
+
+通知å‘布API
+===========
+
+è¦å°†é€šçŸ¥å‘布到观测列表以便订阅的观测å¯ä»¥çœ‹åˆ°ï¼Œåº”使用以下函数::
+
+ void post_watch_notification(struct watch_list *wlist,
+ struct watch_notification *n,
+ const struct cred *cred,
+ u64 id);
+
+应预先设置通知格å¼ï¼Œå¹¶åº”传入一个指å‘头部(``n``)的指针。通知å¯èƒ½å¤§äºŽæ­¤å€¼ï¼Œå¹¶ä¸”缓
+冲槽为å•ä½çš„大å°åœ¨ ``n->info & WATCH_INFO_LENGTH`` 中注明。
+
+``cred`` 结构体表示æºï¼ˆå¯¹è±¡ï¼‰çš„è¯ä¹¦ï¼Œå¹¶ä¼ é€’ç»™LSM,例如SELinux,以å…许或ç¦æ­¢æ ¹æ®è¯¥é˜Ÿ
+列(对象)的è¯ä¹¦åœ¨æ¯ä¸ªå•ç‹¬é˜Ÿåˆ—中记录注释。
+
+``id`` 是æºå¯¹è±¡ID(如密钥上的åºåˆ—å·ï¼‰ã€‚åªæœ‰è®¾ç½®ç›¸åŒID的观测æ‰èƒ½çœ‹åˆ°è¿™ä¸ªé€šçŸ¥ã€‚
+
+
+观测æº
+======
+
+任何特定的缓冲区都å¯ä»¥ä»Žå¤šä¸ªæºèŽ·å–ä¿¡æ¯ã€‚ 这些æºåŒ…括:
+
+ * WATCH_TYPE_KEY_NOTIFY
+
+ è¿™ç§ç±»åž‹çš„通知表示密钥和密钥环的å˜åŒ–,包括密钥环内容或密钥属性的å˜åŒ–。
+
+ 更多信æ¯è¯·å‚è§Documentation/security/keys/core.rst。
+
+
+事件过滤
+========
+
+当创建观测队列åŽï¼Œæˆ‘们å¯ä»¥åº”用一组过滤器以é™åˆ¶æŽ¥æ”¶çš„事件::
+
+ struct watch_notification_filter filter = {
+ ...
+ };
+ ioctl(fd, IOC_WATCH_QUEUE_SET_FILTER, &filter)
+
+过滤器的æ述的类型å˜é‡æ˜¯::
+
+ struct watch_notification_filter {
+ __u32 nr_filters;
+ __u32 __reserved;
+ struct watch_notification_type_filter filters[];
+ };
+
+其中“nr_filtersâ€è¡¨ç¤ºfilters[]数组中过滤器的数é‡ï¼Œè€Œâ€œ__reservedâ€åº”为0。
+“filterâ€æ•°ç»„有以下类型的元素::
+
+ struct watch_notification_type_filter {
+ __u32 type;
+ __u32 info_filter;
+ __u32 info_mask;
+ __u32 subtype_filter[8];
+ };
+
+其中:
+
+ * ``type`` 是过滤的事件类型,应类似于“WATCH_TYPE_KEY_NOTIFYâ€ã€‚
+
+ * ``info_filter`` 与 ``info_mask`` 充当通知记录的信æ¯å­—段的过滤器,åªæœ‰åœ¨ä»¥ä¸‹æƒ…
+ 况,通知æ‰ä¼šå†™å…¥ç¼“冲区::
+
+ (watch.info & info_mask) == info_filter
+
+ 例如,这å¯ä»¥ç”¨äºŽå¿½ç•¥ä¸åœ¨ä¸€ä¸ªæŒ‚载树上的观测点的事件。
+
+ * ``subtype_filter`` 是一个ä½æŽ©ç ï¼Œè¡¨ç¤ºæ„Ÿå…´è¶£çš„å­ç±»åž‹ã€‚subtype_filter[0]çš„
+ bit[0]对应å­ç±»åž‹0,bit[1]对应å­ç±»åž‹1,以此类推。
+
+è‹¥ioctl()çš„å‚数为NULL,则过滤器将被移除,并且æ¥è‡ªè§‚测æºçš„所有事件都将通过。
+
+
+用户空间代ç ç¤ºä¾‹
+================
+
+缓冲区的创建如下所示::
+
+ pipe2(fds, O_TMPFILE);
+ ioctl(fds[1], IOC_WATCH_QUEUE_SET_SIZE, 256);
+
+它å¯ä»¥è¢«è®¾ç½®æˆæŽ¥æ”¶å¯†é’¥çŽ¯å˜åŒ–的通知::
+
+ keyctl(KEYCTL_WATCH_KEY, KEY_SPEC_SESSION_KEYRING, fds[1], 0x01);
+
+然åŽï¼Œè¿™äº›é€šçŸ¥å¯ä»¥è¢«å¦‚下方å¼æ‰€ä½¿ç”¨::
+
+ static void consumer(int rfd, struct watch_queue_buffer *buf)
+ {
+ unsigned char buffer[128];
+ ssize_t buf_len;
+
+ while (buf_len = read(rfd, buffer, sizeof(buffer)),
+ buf_len > 0
+ ) {
+ void *p = buffer;
+ void *end = buffer + buf_len;
+ while (p < end) {
+ union {
+ struct watch_notification n;
+ unsigned char buf1[128];
+ } n;
+ size_t largest, len;
+
+ largest = end - p;
+ if (largest > 128)
+ largest = 128;
+ memcpy(&n, p, largest);
+
+ len = (n->info & WATCH_INFO_LENGTH) >>
+ WATCH_INFO_LENGTH__SHIFT;
+ if (len == 0 || len > largest)
+ return;
+
+ switch (n.n.type) {
+ case WATCH_TYPE_META:
+ got_meta(&n.n);
+ case WATCH_TYPE_KEY_NOTIFY:
+ saw_key_change(&n.n);
+ break;
+ }
+
+ p += len;
+ }
+ }
+ }
diff --git a/Documentation/translations/zh_CN/core-api/workqueue.rst b/Documentation/translations/zh_CN/core-api/workqueue.rst
index e372fa5cf101..f6567cf9d3fb 100644
--- a/Documentation/translations/zh_CN/core-api/workqueue.rst
+++ b/Documentation/translations/zh_CN/core-api/workqueue.rst
@@ -6,6 +6,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
.. _cn_workqueue.rst:
@@ -178,10 +179,6 @@ workqueue将自动创建与属性相匹é…çš„åŽå¤‡å·¥ä½œè€…池。调节并å‘æ°
这个标志对于未绑定的wqæ¥è¯´æ˜¯æ²¡æœ‰æ„义的。
-请注æ„,标志 ``WQ_NON_REENTRANT`` ä¸å†å­˜åœ¨ï¼Œå› ä¸ºçŽ°åœ¨æ‰€æœ‰çš„工作
-队列都是ä¸å¯é€†çš„——任何工作项都ä¿è¯åœ¨ä»»ä½•æ—¶é—´å†…最多被整个系统的一
-个工作者执行。
-
``max_active``
--------------
@@ -328,6 +325,22 @@ And with cmwq with ``@max_active`` >= 3, ::
工作项函数在堆栈追踪中应该是微ä¸è¶³é“的。
+ä¸å¯é‡å…¥æ¡ä»¶
+============
+
+工作队列ä¿è¯ï¼Œå¦‚果在工作项排队åŽæ»¡è¶³ä»¥ä¸‹æ¡ä»¶ï¼Œåˆ™å·¥ä½œé¡¹ä¸èƒ½é‡å…¥ï¼š
+
+
+ 1. 工作函数没有被改å˜ã€‚
+ 2. 没有人将该工作项排到å¦ä¸€ä¸ªå·¥ä½œé˜Ÿåˆ—中。
+ 3. 该工作项尚未被é‡æ–°å¯åŠ¨ã€‚
+
+æ¢è¨€ä¹‹ï¼Œå¦‚果上述æ¡ä»¶æˆç«‹ï¼Œåˆ™ä¿è¯åœ¨ä»»ä½•ç»™å®šæ—¶é—´æœ€å¤šç”±ä¸€ä¸ªç³»ç»ŸèŒƒå›´å†…的工作程åºæ‰§è¡Œ
+该工作项。
+
+请注æ„,在self函数中将工作项é‡æ–°æŽ’队(到åŒä¸€é˜Ÿåˆ—)ä¸ä¼šç ´å这些æ¡ä»¶ï¼Œå› æ­¤å¯ä»¥å®‰å…¨
+地执行此æ“作。å¦åˆ™åœ¨ç ´å工作函数内部的æ¡ä»¶æ—¶éœ€è¦å°å¿ƒã€‚
+
内核内è”文档å‚考
================
diff --git a/Documentation/translations/zh_CN/core-api/xarray.rst b/Documentation/translations/zh_CN/core-api/xarray.rst
index ff2d9bcb7c34..fb19324966ce 100644
--- a/Documentation/translations/zh_CN/core-api/xarray.rst
+++ b/Documentation/translations/zh_CN/core-api/xarray.rst
@@ -6,6 +6,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ 周彬彬 Binbin Zhou <zhoubinbin@loongson.cn>
:校译:
@@ -254,7 +255,8 @@ __xa_set_mark() å’Œ __xa_clear_mark() 函数也适用于你查找一个æ¡ç›®å¹¶
高级API是基于xa_state的。这是一个ä¸é€æ˜Žçš„æ•°æ®ç»“构,你使用XA_STATE()å®åœ¨å †æ ˆä¸­å£°æ˜Žã€‚这个å®åˆå§‹åŒ–了
xa_state,准备开始在XArray上移动。它被用作一个游标æ¥ä¿æŒåœ¨XArray中的ä½ç½®ï¼Œå¹¶è®©ä½ æŠŠå„ç§æ“作组åˆåœ¨ä¸€
-起,而ä¸å¿…æ¯æ¬¡éƒ½ä»Žå¤´å¼€å§‹ã€‚
+起,而ä¸å¿…æ¯æ¬¡éƒ½ä»Žå¤´å¼€å§‹ã€‚xa_state的内容å—rcu_read_lock()或xas_lock()çš„ä¿æŠ¤ã€‚如果需è¦åˆ é™¤ä¿æŠ¤çŠ¶æ€
+和树的这些é”中的任何一个,你必须调用xas_pause()以便将æ¥çš„调用ä¸ä¼šä¾èµ–于状æ€ä¸­æœªå—ä¿æŠ¤çš„部分。
xa_state也被用æ¥å­˜å‚¨é”™è¯¯(store errors)。你å¯ä»¥è°ƒç”¨xas_error()æ¥æ£€ç´¢é”™è¯¯ã€‚所有的æ“作在进行之å‰éƒ½
会检查xa_state是å¦å¤„于错误状æ€ï¼Œæ‰€ä»¥ä½ æ²¡æœ‰å¿…è¦åœ¨æ¯æ¬¡è°ƒç”¨ä¹‹åŽæ£€æŸ¥é”™è¯¯ï¼›ä½ å¯ä»¥è¿žç»­è¿›è¡Œå¤šæ¬¡è°ƒç”¨ï¼Œåªåœ¨
diff --git a/Documentation/translations/zh_CN/dev-tools/kasan.rst b/Documentation/translations/zh_CN/dev-tools/kasan.rst
index 23db9d419047..fe76cbe77ad6 100644
--- a/Documentation/translations/zh_CN/dev-tools/kasan.rst
+++ b/Documentation/translations/zh_CN/dev-tools/kasan.rst
@@ -11,34 +11,65 @@
概述
----
-KernelAddressSANitizer(KASAN)是一ç§åŠ¨æ€å†…存安全错误检测工具,主è¦åŠŸèƒ½æ˜¯
-检查内存越界访问和使用已释放内存的问题。KASAN有三ç§æ¨¡å¼:
+Kernel Address SANitizer(KASAN)是一ç§åŠ¨æ€å†…存安全错误检测工具,主è¦åŠŸèƒ½æ˜¯
+检查内存越界访问和使用已释放内存的问题。
-1. 通用KASAN(与用户空间的ASan类似)
-2. 基于软件标签的KASAN(与用户空间的HWASan类似)
-3. 基于硬件标签的KASAN(基于硬件内存标签)
+KASAN有三ç§æ¨¡å¼:
-由于通用KASAN的内存开销较大,通用KASAN主è¦ç”¨äºŽè°ƒè¯•ã€‚基于软件标签的KASAN
-å¯ç”¨äºŽdogfood测试,因为它具有较低的内存开销,并å…许将其用于实际工作é‡ã€‚
-基于硬件标签的KASAN具有较低的内存和性能开销,因此å¯ç”¨äºŽç”Ÿäº§ã€‚åŒæ—¶å¯ç”¨äºŽ
-检测现场内存问题或作为安全缓解措施。
+1. 通用KASAN
+2. 基于软件标签的KASAN
+3. 基于硬件标签的KASAN
-软件KASAN模å¼ï¼ˆ#1å’Œ#2)使用编译时工具在æ¯æ¬¡å†…存访问之å‰æ’入有效性检查,
-因此需è¦ä¸€ä¸ªæ”¯æŒå®ƒçš„编译器版本。
+用CONFIG_KASAN_GENERICå¯ç”¨çš„通用KASAN,是用于调试的模å¼ï¼Œç±»ä¼¼äºŽç”¨æˆ·ç©º
+é—´çš„ASan。这ç§æ¨¡å¼åœ¨è®¸å¤šCPU架构上都被支æŒï¼Œä½†å®ƒæœ‰æ˜Žæ˜¾çš„性能和内存开销。
-通用KASAN在GCCå’ŒClangå—支æŒã€‚GCC需è¦8.3.0或更高版本。任何å—支æŒçš„Clang
-版本都是兼容的,但从Clang 11æ‰å¼€å§‹æ”¯æŒæ£€æµ‹å…¨å±€å˜é‡çš„越界访问。
+基于软件标签的KASAN或SW_TAGS KASAN,通过CONFIG_KASAN_SW_TAGSå¯ç”¨ï¼Œ
+å¯ä»¥ç”¨äºŽè°ƒè¯•å’Œè‡ªæˆ‘测试,类似于用户空间HWASan。这ç§æ¨¡å¼åªæ”¯æŒarm64,但其
+适度的内存开销å…许在内存å—é™çš„设备上用真实的工作负载进行测试。
-基于软件标签的KASAN模å¼ä»…在Clang中å—支æŒã€‚
+基于硬件标签的KASAN或HW_TAGS KASAN,用CONFIG_KASAN_HW_TAGSå¯ç”¨ï¼Œè¢«
+用作现场内存错误检测器或作为安全缓解的模å¼ã€‚è¿™ç§æ¨¡å¼åªåœ¨æ”¯æŒMTE(内存标签
+扩展)的arm64 CPU上工作,但它的内存和性能开销很低,因此å¯ä»¥åœ¨ç”Ÿäº§ä¸­ä½¿ç”¨ã€‚
-硬件KASAN模å¼ï¼ˆ#3)ä¾èµ–硬件æ¥æ‰§è¡Œæ£€æŸ¥ï¼Œä½†ä»éœ€è¦æ”¯æŒå†…存标签指令的编译器
-版本。GCC 10+å’ŒClang 11+支æŒæ­¤æ¨¡å¼ã€‚
+关于æ¯ç§KASAN模å¼çš„内存和性能影å“的细节,请å‚è§ç›¸åº”çš„Kconfig选项的æ述。
-两ç§è½¯ä»¶KASAN模å¼éƒ½é€‚用于SLUBå’ŒSLAB内存分é…器,而基于硬件标签的KASANç›®å‰
-仅支æŒSLUB。
+通用模å¼å’ŒåŸºäºŽè½¯ä»¶æ ‡ç­¾çš„模å¼é€šå¸¸è¢«ç§°ä¸ºè½¯ä»¶æ¨¡å¼ã€‚基于软件标签的模å¼å’ŒåŸºäºŽ
+硬件标签的模å¼è¢«ç§°ä¸ºåŸºäºŽæ ‡ç­¾çš„模å¼ã€‚
-ç›®å‰x86_64ã€armã€arm64ã€xtensaã€s390ã€riscv架构支æŒé€šç”¨KASAN模å¼ï¼Œä»…
-arm64架构支æŒåŸºäºŽæ ‡ç­¾çš„KASAN模å¼ã€‚
+支æŒ
+----
+
+体系架构
+~~~~~~~~
+
+在x86_64ã€armã€arm64ã€powerpcã€riscvã€s390å’Œxtensa上支æŒé€šç”¨KASAN,
+而基于标签的KASAN模å¼åªåœ¨arm64上支æŒã€‚
+
+编译器
+~~~~~~
+
+软件KASAN模å¼ä½¿ç”¨ç¼–译时工具在æ¯ä¸ªå†…存访问之å‰æ’入有效性检查,因此需è¦ä¸€ä¸ª
+æ供支æŒçš„编译器版本。基于硬件标签的模å¼ä¾é ç¡¬ä»¶æ¥æ‰§è¡Œè¿™äº›æ£€æŸ¥ï¼Œä½†ä»ç„¶éœ€è¦
+一个支æŒå†…存标签指令的编译器版本。
+
+通用KASAN需è¦GCC 8.3.0版本或更高版本,或者内核支æŒçš„任何Clang版本。
+
+基于软件标签的KASAN需è¦GCC 11+或者内核支æŒçš„任何Clang版本。
+
+基于硬件标签的KASAN需è¦GCC 10+或Clang 12+。
+
+内存类型
+~~~~~~~~
+
+通用KASAN支æŒåœ¨æ‰€æœ‰çš„slabã€page_allocã€vmapã€vmallocã€å †æ ˆå’Œå…¨å±€å†…å­˜
+中查找错误。
+
+基于软件标签的KASAN支æŒslabã€page_allocã€vmalloc和堆栈内存。
+
+基于硬件标签的KASAN支æŒslabã€page_allocå’Œä¸å¯æ‰§è¡Œçš„vmalloc内存。
+
+对于slab,两ç§è½¯ä»¶KASAN模å¼éƒ½æ”¯æŒSLUBå’ŒSLAB分é…器,而基于硬件标签的
+KASANåªæ”¯æŒSLUB。
用法
----
@@ -53,7 +84,7 @@ arm64架构支æŒåŸºäºŽæ ‡ç­¾çš„KASAN模å¼ã€‚
对于软件模å¼ï¼Œè¿˜å¯ä»¥åœ¨ ``CONFIG_KASAN_OUTLINE`` å’Œ ``CONFIG_KASAN_INLINE``
之间进行选择。outlineå’Œinline是编译器æ’桩类型。å‰è€…产生较å°çš„二进制文件,
-而åŽè€…å¿«1.1-2å€ã€‚
+而åŽè€…å¿«2å€ã€‚
è¦å°†å—å½±å“çš„slab对象的allocå’Œfree堆栈跟踪包å«åˆ°æŠ¥å‘Šä¸­ï¼Œè¯·å¯ç”¨
``CONFIG_STACKTRACE`` 。è¦åŒ…括å—å½±å“物ç†é¡µé¢çš„分é…和释放堆栈跟踪的è¯ï¼Œ
@@ -172,21 +203,29 @@ KASANå—通用 ``panic_on_warn`` 命令行å‚æ•°çš„å½±å“。å¯ç”¨è¯¥åŠŸèƒ½åŽï¼
默认情况下,KASANåªä¸ºç¬¬ä¸€æ¬¡æ— æ•ˆå†…存访问打å°é”™è¯¯æŠ¥å‘Šã€‚使用 ``kasan_multi_shot`` ,
KASAN会针对æ¯ä¸ªæ— æ•ˆè®¿é—®æ‰“å°æŠ¥å‘Šã€‚这有效地ç¦ç”¨äº†KASAN报告的 ``panic_on_warn`` 。
+å¦å¤–,独立于 ``panic_on_warn`` , ``kasan.fault=`` 引导å‚æ•°å¯ä»¥ç”¨æ¥æŽ§åˆ¶æ慌和报
+告行为:
+
+- ``kasan.fault=report`` 或 ``=panic`` 控制是åªæ‰“å°KASAN报告还是åŒæ—¶ä½¿å†…æ ¸ææ…Œ
+ (默认: ``report`` )。å³ä½¿å¯ç”¨äº† ``kasan_multi_shot`` ,也会å‘生内核æ慌。
+
基于硬件标签的KASAN模å¼ï¼ˆè¯·å‚阅下é¢æœ‰å…³å„ç§æ¨¡å¼çš„部分)旨在在生产中用作安全缓解
-措施。因此,它支æŒå…许ç¦ç”¨KASAN或控制其功能的引导å‚数。
+措施。因此,它支æŒå…许ç¦ç”¨KASAN或控制其功能的附加引导å‚数。
- ``kasan=off`` 或 ``=on`` 控制KASAN是å¦å¯ç”¨ (默认: ``on`` )。
-- ``kasan.mode=sync`` 或 ``=async`` 控制KASAN是å¦é…置为åŒæ­¥æˆ–异步执行模å¼(默认:
- ``sync`` )。åŒæ­¥æ¨¡å¼ï¼šå½“标签检查错误å‘生时,立å³æ£€æµ‹åˆ°é”™è¯¯è®¿é—®ã€‚异步模å¼ï¼š
- 延迟错误访问检测。当标签检查错误å‘生时,信æ¯å­˜å‚¨åœ¨ç¡¬ä»¶ä¸­ï¼ˆåœ¨arm64çš„
+- ``kasan.mode=sync`` 〠``=async`` 或 ``=asymm`` 控制KASAN是å¦é…ç½®
+ 为åŒæ­¥æˆ–异步执行模å¼(默认:``sync`` )。
+ åŒæ­¥æ¨¡å¼ï¼šå½“标签检查错误å‘生时,立å³æ£€æµ‹åˆ°é”™è¯¯è®¿é—®ã€‚
+ 异步模å¼ï¼šå»¶è¿Ÿé”™è¯¯è®¿é—®æ£€æµ‹ã€‚当标签检查错误å‘生时,信æ¯å­˜å‚¨åœ¨ç¡¬ä»¶ä¸­ï¼ˆåœ¨arm64çš„
TFSR_EL1寄存器中)。内核会定期检查硬件,并且仅在这些检查期间报告标签错误。
+ éžå¯¹ç§°æ¨¡å¼ï¼šè¯»å–æ—¶åŒæ­¥æ£€æµ‹ä¸è‰¯è®¿é—®ï¼Œå†™å…¥æ—¶å¼‚步检测。
+
+- ``kasan.vmalloc=off`` 或 ``=on`` ç¦ç”¨æˆ–å¯ç”¨vmalloc分é…的标记(默认:``on`` )。
- ``kasan.stacktrace=off`` 或 ``=on`` ç¦ç”¨æˆ–å¯ç”¨allocå’Œfree堆栈跟踪收集
(默认: ``on`` )。
-- ``kasan.fault=report`` 或 ``=panic`` 控制是åªæ‰“å°KASAN报告还是åŒæ—¶ä½¿å†…æ ¸ææ…Œ
- (默认: ``report`` )。å³ä½¿å¯ç”¨äº† ``kasan_multi_shot`` ,也会å‘生内核æ慌。
实施细则
--------
@@ -244,7 +283,6 @@ KASAN会针对æ¯ä¸ªæ— æ•ˆè®¿é—®æ‰“å°æŠ¥å‘Šã€‚这有效地ç¦ç”¨äº†KASAN报告ç
基于软件标签的KASAN使用0xFF作为匹é…所有指针标签(ä¸æ£€æŸ¥é€šè¿‡å¸¦æœ‰0xFF指针标签
的指针进行的访问)。值0xFE当å‰ä¿ç•™ç”¨äºŽæ ‡è®°å·²é‡Šæ”¾çš„内存区域。
-基于软件标签的KASANç›®å‰ä»…支æŒå¯¹Slabå’Œpage_alloc内存进行标记。
基于硬件标签的KASAN模å¼
~~~~~~~~~~~~~~~~~~~~~~~
@@ -262,8 +300,6 @@ KASAN会针对æ¯ä¸ªæ— æ•ˆè®¿é—®æ‰“å°æŠ¥å‘Šã€‚这有效地ç¦ç”¨äº†KASAN报告ç
基于硬件标签的KASAN使用0xFF作为匹é…所有指针标签(ä¸æ£€æŸ¥é€šè¿‡å¸¦æœ‰0xFF指针标签的
指针进行的访问)。值0xFE当å‰ä¿ç•™ç”¨äºŽæ ‡è®°å·²é‡Šæ”¾çš„内存区域。
-基于硬件标签的KASANç›®å‰ä»…支æŒå¯¹Slabå’Œpage_alloc内存进行标记。
-
如果硬件ä¸æ”¯æŒMTE(ARMv8.5之å‰ï¼‰ï¼Œåˆ™ä¸ä¼šå¯ç”¨åŸºäºŽç¡¬ä»¶æ ‡ç­¾çš„KASAN。在这ç§æƒ…况下,
所有KASAN引导å‚数都将被忽略。
@@ -275,6 +311,8 @@ KASAN会针对æ¯ä¸ªæ— æ•ˆè®¿é—®æ‰“å°æŠ¥å‘Šã€‚这有效地ç¦ç”¨äº†KASAN报告ç
å½±å­å†…å­˜
--------
+本节的内容åªé€‚用于软件KASAN模å¼ã€‚
+
内核将内存映射到地å€ç©ºé—´çš„几个ä¸åŒéƒ¨åˆ†ã€‚内核虚拟地å€çš„范围很大:没有足够的真实
内存æ¥æ”¯æŒå†…æ ¸å¯ä»¥è®¿é—®çš„æ¯ä¸ªåœ°å€çš„真实影å­åŒºåŸŸã€‚因此,KASANåªä¸ºåœ°å€ç©ºé—´çš„æŸäº›
部分映射真实的影å­ã€‚
@@ -297,7 +335,7 @@ CONFIG_KASAN_VMALLOC
~~~~~~~~~~~~~~~~~~~~
使用 ``CONFIG_KASAN_VMALLOC`` ,KASANå¯ä»¥ä»¥æ›´å¤§çš„内存使用为代价覆盖vmalloc
-空间。目å‰ï¼Œè¿™åœ¨x86ã€riscvã€s390å’Œpowerpc上å—支æŒã€‚
+空间。目å‰ï¼Œè¿™åœ¨arm64ã€x86ã€riscvã€s390å’Œpowerpc上å—支æŒã€‚
这通过连接到vmallocå’Œvmap并动æ€åˆ†é…真实的影å­å†…å­˜æ¥æ”¯æŒæ˜ å°„。
@@ -349,10 +387,10 @@ KASAN连接到vmap基础架构以懒清ç†æœªä½¿ç”¨çš„å½±å­å†…存。
``kasan_disable_current()``/``kasan_enable_current()`` 部分注释这部分代ç ã€‚
这也会ç¦ç”¨é€šè¿‡å‡½æ•°è°ƒç”¨å‘生的间接访问的报告。
-对于基于标签的KASAN模å¼ï¼ˆåŒ…括硬件模å¼ï¼‰ï¼Œè¦ç¦ç”¨è®¿é—®æ£€æŸ¥ï¼Œè¯·ä½¿ç”¨
-``kasan_reset_tag()`` 或 ``page_kasan_tag_reset()`` 。请注æ„,通过
-``page_kasan_tag_reset()`` 临时ç¦ç”¨è®¿é—®æ£€æŸ¥éœ€è¦é€šè¿‡ ``page_kasan_tag``
-/ ``page_kasan_tag_set`` ä¿å­˜å’Œæ¢å¤æ¯é¡µKASAN标签。
+对于基于标签的KASAN模å¼ï¼Œè¦ç¦ç”¨è®¿é—®æ£€æŸ¥ï¼Œè¯·ä½¿ç”¨ ``kasan_reset_tag()`` 或
+``page_kasan_tag_reset()`` 。请注æ„,通过 ``page_kasan_tag_reset()``
+临时ç¦ç”¨è®¿é—®æ£€æŸ¥éœ€è¦é€šè¿‡ ``page_kasan_tag`` / ``page_kasan_tag_set`` ä¿
+存和æ¢å¤æ¯é¡µKASAN标签。
测试
~~~~
@@ -381,11 +419,10 @@ KASAN连接到vmap基础架构以懒清ç†æœªä½¿ç”¨çš„å½±å­å†…存。
当由于缺少KASAN报告而导致测试失败时::
- # kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:629
- Expected kasan_data->report_expected == kasan_data->report_found, but
- kasan_data->report_expected == 1
- kasan_data->report_found == 0
- not ok 28 - kmalloc_double_kzfree
+ # kmalloc_double_kzfree: EXPECTATION FAILED at lib/test_kasan.c:974
+ KASAN failure expected in "kfree_sensitive(ptr)", but none occurred
+ not ok 44 - kmalloc_double_kzfree
+
最åŽæ‰“å°æ‰€æœ‰KASAN测试的累积状æ€ã€‚æˆåŠŸ::
diff --git a/Documentation/translations/zh_CN/dev-tools/sparse.rst b/Documentation/translations/zh_CN/dev-tools/sparse.rst
index 556282437aad..0664c634bc4f 100644
--- a/Documentation/translations/zh_CN/dev-tools/sparse.rst
+++ b/Documentation/translations/zh_CN/dev-tools/sparse.rst
@@ -106,3 +106,5 @@ __releases - 指定的é”在函数进入时被æŒæœ‰ï¼Œä½†åœ¨é€€å‡ºæ—¶ä¸è¢«æŒ
make çš„å¯é€‰å˜é‡ CHECKFLAGS å¯ä»¥ç”¨æ¥å‘ sparse 工具传递å‚数。编译系统会自
åŠ¨å‘ sparse 工具传递 -Wbitwise å‚数。
+
+注æ„sparse定义了__CHECKER__预处ç†å™¨ç¬¦å·ã€‚ \ No newline at end of file
diff --git a/Documentation/translations/zh_CN/dev-tools/testing-overview.rst b/Documentation/translations/zh_CN/dev-tools/testing-overview.rst
index b7a1d13da6c6..d6f2c65ed511 100644
--- a/Documentation/translations/zh_CN/dev-tools/testing-overview.rst
+++ b/Documentation/translations/zh_CN/dev-tools/testing-overview.rst
@@ -107,3 +107,28 @@ Documentation/dev-tools/kcov.rst 是能够构建在内核之中,用于在æ¯ä¸
之åŽä½ å°±èƒ½ç¡®ä¿è¿™äº›é”™è¯¯åœ¨æµ‹è¯•è¿‡ç¨‹ä¸­éƒ½ä¸ä¼šå‘生了。
一些工具与KUnitå’Œkselftest集æˆï¼Œå¹¶ä¸”在检测到问题时会自动打断测试。
+
+é™æ€åˆ†æžå·¥å…·
+============
+
+除了测试è¿è¡Œä¸­çš„内核,我们还å¯ä»¥ä½¿ç”¨**é™æ€åˆ†æž**工具直接分æžå†…核的æºä»£
+ç ï¼ˆ**在编译时**)。内核中常用的工具å…许人们检查整个æºä»£ç æ ‘或其中的特
+定文件。它们使得在开å‘过程中更容易å‘现和修å¤é—®é¢˜ã€‚
+
+ Sparseå¯ä»¥é€šè¿‡æ‰§è¡Œç±»åž‹æ£€æŸ¥ã€é”检查ã€å€¼èŒƒå›´æ£€æŸ¥æ¥å¸®åŠ©æµ‹è¯•å†…核,此外还
+ å¯ä»¥åœ¨æ£€æŸ¥ä»£ç æ—¶æŠ¥å‘Šå„ç§é”™è¯¯å’Œè­¦å‘Šã€‚关于如何使用它的细节,请å‚阅
+ Documentation/translations/zh_CN/dev-tools/sparse.rst。
+
+ Smatch扩展了Sparse,并æ供了对编程逻辑错误的é¢å¤–检查,如开关语å¥ä¸­
+ 缺少断点,错误检查中未使用的返回值,忘记在错误路径的返回中设置错误代
+ ç ç­‰ã€‚Smatch也有针对更严é‡é—®é¢˜çš„测试,如整数溢出ã€ç©ºæŒ‡é’ˆè§£é™¤å¼•ç”¨å’Œå†…
+ 存泄æ¼ã€‚è§é¡¹ç›®é¡µé¢http://smatch.sourceforge.net/。
+
+ Coccinelle是我们å¯ä»¥ä½¿ç”¨çš„å¦ä¸€ä¸ªé™æ€åˆ†æžå™¨ã€‚Coccinelleç»å¸¸è¢«ç”¨æ¥
+ 帮助æºä»£ç çš„é‡æž„和并行演化,但它也å¯ä»¥å¸®åŠ©é¿å…常è§ä»£ç æ¨¡å¼ä¸­å‡ºçŽ°çš„æŸ
+ 些错误。å¯ç”¨çš„测试类型包括API测试ã€å†…核迭代器的正确使用测试ã€è‡ªç”±æ“
+ 作的åˆç†æ€§æ£€æŸ¥ã€é”定行为的分æžï¼Œä»¥åŠå·²çŸ¥çš„有助于ä¿æŒå†…核使用一致性的
+ 进一步测试。详情请è§Documentation/dev-tools/coccinelle.rst。
+
+ ä¸è¿‡è¦æ³¨æ„的是,é™æ€åˆ†æžå·¥å…·å­˜åœ¨**å‡é˜³æ€§**的问题。在试图修å¤é”™è¯¯å’Œè­¦
+ 告之å‰ï¼Œéœ€è¦ä»”细评估它们。
diff --git a/Documentation/translations/zh_CN/devicetree/changesets.rst b/Documentation/translations/zh_CN/devicetree/changesets.rst
new file mode 100644
index 000000000000..2ace05f3c377
--- /dev/null
+++ b/Documentation/translations/zh_CN/devicetree/changesets.rst
@@ -0,0 +1,37 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/Devicetree/changesets.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+
+============
+设备树å˜æ›´é›†
+============
+
+设备树å˜æ›´é›†æ˜¯ä¸€ç§æ–¹æ³•ï¼Œå®ƒå…许人们以这样一ç§æ–¹å¼åœ¨å®žæ—¶æ ‘中使用å˜åŒ–,å³è¦ä¹ˆä½¿ç”¨å…¨éƒ¨çš„
+å˜åŒ–,è¦ä¹ˆä¸ä½¿ç”¨ã€‚如果在使用å˜æ›´é›†çš„过程中å‘生错误,那么树将被回滚到之å‰çš„状æ€ã€‚一个
+å˜æ›´é›†ä¹Ÿå¯ä»¥åœ¨ä½¿ç”¨åŽè¢«åˆ é™¤ã€‚
+
+当一个å˜æ›´é›†è¢«ä½¿ç”¨æ—¶ï¼Œæ‰€æœ‰çš„改å˜åœ¨å‘出OF_RECONFIG通知器之å‰è¢«ä¸€æ¬¡æ€§ä½¿ç”¨åˆ°æ ‘上。这是
+为了让接收者在收到通知时看到一个完整的ã€ä¸€è‡´çš„树的状æ€ã€‚
+
+一个å˜åŒ–集的顺åºå¦‚下。
+
+1. of_changeset_init() - åˆå§‹åŒ–一个å˜æ›´é›†ã€‚
+
+2. 一些DTæ ‘å˜åŒ–的调用,of_changeset_attach_node(), of_changeset_detach_node(),
+ of_changeset_add_property(), of_changeset_remove_property,
+ of_changeset_update_property()æ¥å‡†å¤‡ä¸€ç»„å˜æ›´ã€‚此时ä¸ä¼šå¯¹æ´»åŠ¨æ ‘åšä»»ä½•å˜æ›´ã€‚所有
+ çš„å˜æ›´æ“作都记录在of_changesetçš„ `entries` 列表中。
+
+3. of_changeset_apply() - å°†å˜æ›´ä½¿ç”¨åˆ°æ ‘上。è¦ä¹ˆæ•´ä¸ªå˜æ›´é›†è¢«ä½¿ç”¨ï¼Œè¦ä¹ˆå¦‚果有错误,
+ 树会被æ¢å¤åˆ°ä¹‹å‰çš„状æ€ã€‚核心通过é”ç¡®ä¿æ­£ç¡®çš„顺åºã€‚如果需è¦çš„è¯ï¼Œå¯ä»¥ä½¿ç”¨ä¸€ä¸ªè§£é”çš„
+ __of_changeset_apply版本。
+
+如果一个æˆåŠŸä½¿ç”¨çš„å˜æ›´é›†éœ€è¦è¢«åˆ é™¤ï¼Œå¯ä»¥ç”¨of_changeset_revert()æ¥å®Œæˆã€‚
diff --git a/Documentation/translations/zh_CN/devicetree/dynamic-resolution-notes.rst b/Documentation/translations/zh_CN/devicetree/dynamic-resolution-notes.rst
new file mode 100644
index 000000000000..115190341305
--- /dev/null
+++ b/Documentation/translations/zh_CN/devicetree/dynamic-resolution-notes.rst
@@ -0,0 +1,31 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/Devicetree/dynamic-resolution-notes.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+========================
+Devicetree动æ€è§£æžå™¨è¯´æ˜Ž
+========================
+
+本文æ述了内核内DeviceTree解æžå™¨çš„实现,它ä½äºŽdrivers/of/resolver.c中。
+
+解æžå™¨å¦‚何工作?
+----------------
+
+解æžå™¨è¢«èµ‹äºˆä¸€ä¸ªä»»æ„的树作为输入,该树用适当的dtc选项编译,并有一个/plugin/标签。这就产
+生了适当的__fixups__和__local_fixups__节点。
+
+解æžå™¨ä¾æ¬¡é€šè¿‡ä»¥ä¸‹æ­¥éª¤å·¥ä½œ:
+
+1. 从实时树中获å–最大的设备树phandle值 + 1.
+2. 调整树的所有本地 phandles,以解决这个é‡ã€‚
+3. 使用 __local__fixups__ 节点信æ¯ä»¥ç›¸åŒçš„é‡è°ƒæ•´æ‰€æœ‰æœ¬åœ°å¼•ç”¨ã€‚
+4. 对于__fixups__节点中的æ¯ä¸ªå±žæ€§ï¼Œæ‰¾åˆ°å®ƒåœ¨å®žæ—¶æ ‘中引用的节点。这是用æ¥æ ‡è®°è¯¥èŠ‚点的标签。
+5. 检索fixup的目标的phandle。
+6. 对于属性中的æ¯ä¸ªfixup,找到节点:属性:å移的ä½ç½®ï¼Œå¹¶ç”¨phandle值替æ¢å®ƒã€‚
diff --git a/Documentation/translations/zh_CN/devicetree/index.rst b/Documentation/translations/zh_CN/devicetree/index.rst
index 23d0b6fccd58..7451dbfdd3e5 100644
--- a/Documentation/translations/zh_CN/devicetree/index.rst
+++ b/Documentation/translations/zh_CN/devicetree/index.rst
@@ -1,7 +1,7 @@
.. SPDX-License-Identifier: GPL-2.0
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/Devicetree/index.rst
+:Original: Documentation/devicetree/index.rst
:翻译:
@@ -24,21 +24,16 @@ Open Firmware 和 Devicetree
usage-model
of_unittest
-
-Todolist:
-
-* kernel-api
+ kernel-api
Devicetree Overlays
===================
.. toctree::
:maxdepth: 1
-Todolist:
-
-* changesets
-* dynamic-resolution-notes
-* overlay-notes
+ changesets
+ dynamic-resolution-notes
+ overlay-notes
Devicetree Bindings
===================
diff --git a/Documentation/translations/zh_CN/devicetree/kernel-api.rst b/Documentation/translations/zh_CN/devicetree/kernel-api.rst
new file mode 100644
index 000000000000..6aa3b685494e
--- /dev/null
+++ b/Documentation/translations/zh_CN/devicetree/kernel-api.rst
@@ -0,0 +1,58 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/Devicetree/kernel-api.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+
+=================
+内核中的设备树API
+=================
+
+核心函数
+--------
+
+该API在以下内核代ç ä¸­:
+
+drivers/of/base.c
+
+include/linux/of.h
+
+drivers/of/property.c
+
+include/linux/of_graph.h
+
+drivers/of/address.c
+
+drivers/of/irq.c
+
+drivers/of/fdt.c
+
+驱动模型函数
+------------
+
+该API在以下内核代ç ä¸­:
+
+include/linux/of_device.h
+
+drivers/of/device.c
+
+include/linux/of_platform.h
+
+drivers/of/platform.c
+
+覆盖和动æ€DT函数
+----------------
+
+该API在以下内核代ç ä¸­:
+
+drivers/of/resolver.c
+
+drivers/of/dynamic.c
+
+drivers/of/overlay.c
diff --git a/Documentation/translations/zh_CN/devicetree/of_unittest.rst b/Documentation/translations/zh_CN/devicetree/of_unittest.rst
index abd94e771ef8..11eb08ca8866 100644
--- a/Documentation/translations/zh_CN/devicetree/of_unittest.rst
+++ b/Documentation/translations/zh_CN/devicetree/of_unittest.rst
@@ -1,7 +1,7 @@
.. SPDX-License-Identifier: GPL-2.0
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/Devicetree/of_unittest.rst
+:Original: Documentation/devicetree/of_unittest.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/devicetree/overlay-notes.rst b/Documentation/translations/zh_CN/devicetree/overlay-notes.rst
new file mode 100644
index 000000000000..1bd482cb0a1b
--- /dev/null
+++ b/Documentation/translations/zh_CN/devicetree/overlay-notes.rst
@@ -0,0 +1,140 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/Devicetree/overlay-notes.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+==============
+设备树覆盖说明
+==============
+
+本文档æ述了drivers/of/overlay.c中的内核内设备树覆盖功能的实现,是
+Documentation/devicetree/dynamic-resolution-notes.rst[1]çš„é…套文档。
+
+覆盖如何工作
+------------
+
+设备树覆盖的目的是修改内核的实时树,并使修改以å映å˜åŒ–çš„æ–¹å¼å½±å“内核的状æ€ã€‚
+由于内核主è¦å¤„ç†çš„是设备,任何新的设备节点如果导致一个活动的设备,就应该创建它,
+而如果设备节点被ç¦ç”¨æˆ–被全部删除,å—å½±å“的设备应该被å–消注册。
+
+让我们举个例å­ï¼Œæˆ‘们有一个fooæ¿ï¼Œå®ƒçš„基本树形图如下::
+
+ ---- foo.dts ---------------------------------------------------------------
+ /* FOOå¹³å° */
+ /dts-v1/;
+ / {
+ compatible = "corp,foo";
+
+ /* å…±äº«çš„èµ„æº */
+ res: res {
+ };
+
+ /* 芯片上的外围设备 */
+ ocp: ocp {
+ /* 总是被实例化的外围设备 */
+ peripheral1 { ... };
+ };
+ };
+ ---- foo.dts ---------------------------------------------------------------
+
+覆盖bar.dts,
+::
+
+ ---- bar.dts - 按标签覆盖目标ä½ç½® ----------------------------
+ /dts-v1/;
+ /æ’件/;
+ &ocp {
+ /* bar外围 */
+ bar {
+ compatible = "corp,bar";
+ ... /* å„ç§å±žæ€§å’Œå­èŠ‚点 */
+ };
+ };
+ ---- bar.dts ---------------------------------------------------------------
+
+当加载(并按照[1]中æè¿°çš„æ–¹å¼è§£å†³ï¼‰æ—¶ï¼Œåº”该产生foo+bar.dts::
+
+ ---- foo+bar.dts -----------------------------------------------------------
+ /* FOOå¹³å° + bar外围 */
+ / {
+ compatible = "corp,foo";
+
+ /* å…±äº«èµ„æº */
+ res: res {
+ };
+
+ /* 芯片上的外围设备 */
+ ocp: ocp {
+ /* 总是被实例化的外围设备 */
+ peripheral1 { ... };
+
+ /* bar外围 */
+ bar {
+ compatible = "corp,bar";
+ ... /* å„ç§å±žæ€§å’Œå­èŠ‚点 */
+ };
+ };
+ };
+ ---- foo+bar.dts -----------------------------------------------------------
+
+作为覆盖的结果,已ç»åˆ›å»ºäº†ä¸€ä¸ªæ–°çš„设备节点(bar),因此将注册一个barå¹³å°è®¾å¤‡ï¼Œ
+如果加载了匹é…的设备驱动程åºï¼Œå°†æŒ‰é¢„期创建设备。
+
+如果基础DTä¸æ˜¯ç”¨-@选项编译的,那么“&ocpâ€æ ‡ç­¾å°†ä¸èƒ½ç”¨äºŽå°†è¦†ç›–节点解æžåˆ°åŸºç¡€
+DT中的适当ä½ç½®ã€‚在这ç§æƒ…况下,å¯ä»¥æ供目标路径。通过标签的目标ä½ç½®çš„语法是比
+较好的,因为ä¸ç®¡æ ‡ç­¾åœ¨DT中出现在哪里,覆盖都å¯ä»¥è¢«åº”用到任何包å«æ ‡ç­¾çš„基础DT上。
+
+上é¢çš„bar.dts例å­è¢«ä¿®æ”¹ä¸ºä½¿ç”¨ç›®æ ‡è·¯å¾„语法,å³ä¸º::
+
+ ---- bar.dts - 通过明确的路径覆盖目标ä½ç½® --------------------
+ /dts-v1/;
+ /æ’件/;
+ &{/ocp} {
+ /* bar外围 */
+ bar {
+ compatible = "corp,bar";
+ ... /* å„ç§å¤–围设备和å­èŠ‚点 */
+ }
+ };
+ ---- bar.dts ---------------------------------------------------------------
+
+
+内核中关于覆盖的API
+-------------------
+
+该API相当容易使用。
+
+1) 调用of_overlay_fdt_apply()æ¥åˆ›å»ºå’Œåº”用一个覆盖的å˜æ›´é›†ã€‚返回值是一个
+ 错误或一个识别这个覆盖的cookie。
+
+2) 调用of_overlay_remove()æ¥åˆ é™¤å’Œæ¸…ç†å…ˆå‰é€šè¿‡è°ƒç”¨of_overlay_fdt_apply()
+ 而创建的覆盖å˜æ›´é›†ã€‚ä¸å…许删除一个被å¦ä¸€ä¸ªè¦†ç›–的覆盖å˜åŒ–集。
+
+最åŽï¼Œå¦‚果你需è¦ä¸€æ¬¡æ€§åˆ é™¤æ‰€æœ‰çš„覆盖,åªéœ€è°ƒç”¨of_overlay_remove_all(),
+它将以正确的顺åºåˆ é™¤æ¯ä¸€ä¸ªè¦†ç›–。
+
+ä½ å¯ä»¥é€‰æ‹©æ³¨å†Œåœ¨è¦†ç›–æ“作中被调用的通知器。详è§
+of_overlay_notifier_register/unregister和enum of_overlay_notify_action。
+
+OF_OVERLAY_PRE_APPLYã€OF_OVERLAY_POST_APPLY或OF_OVERLAY_PRE_REMOVE
+的通知器回调å¯ä»¥å­˜å‚¨æŒ‡å‘覆盖层中的设备树节点或其内容的指针,但这些指针ä¸èƒ½æŒ
+续到OF_OVERLAY_POST_REMOVE的通知器回调。在OF_OVERLAY_POST_REMOVE通
+知器被调用åŽï¼ŒåŒ…å«è¦†ç›–层的内存将被kfree()ed。请注æ„,å³ä½¿OF_OVERLAY_POST_REMOVE
+的通知器返回错误,内存也会被kfree()ed。
+
+drivers/of/dynamic.c中的å˜æ›´é›†é€šçŸ¥å™¨æ˜¯ç¬¬äºŒç§ç±»åž‹çš„通知器,å¯ä»¥é€šè¿‡åº”用或移除
+覆盖层æ¥è§¦å‘。这些通知器ä¸å…许在覆盖层或其内容中存储指å‘设备树节点的指针。当包å«
+覆盖层的内存因移除覆盖层而被释放时,覆盖层代ç å¹¶ä¸èƒ½é˜²æ­¢è¿™ç±»æŒ‡é’ˆä»ç„¶æœ‰æ•ˆã€‚
+
+任何其他ä¿ç•™æŒ‡å‘覆盖层节点或数æ®çš„指针的代ç éƒ½è¢«è®¤ä¸ºæ˜¯ä¸€ä¸ªé”™è¯¯ï¼Œå› ä¸ºåœ¨ç§»é™¤è¦†ç›–层
+åŽï¼Œè¯¥æŒ‡é’ˆå°†æŒ‡å‘已释放的内存。
+
+覆盖层的用户必须特别注æ„系统上å‘生的整体æ“作,以确ä¿å…¶ä»–内核代ç ä¸ä¿ç•™ä»»ä½•æŒ‡å‘覆
+盖层节点或数æ®çš„指针。任何无æ„中使用这ç§æŒ‡é’ˆçš„例å­æ˜¯ï¼Œå¦‚果一个驱动或å­ç³»ç»Ÿæ¨¡å—在
+应用了覆盖åŽè¢«åŠ è½½ï¼Œå¹¶ä¸”该驱动或å­ç³»ç»Ÿæ‰«æ了整个设备树或其大部分,包括覆盖节点。
diff --git a/Documentation/translations/zh_CN/devicetree/usage-model.rst b/Documentation/translations/zh_CN/devicetree/usage-model.rst
index accdc33475a0..c6aee82c7e6e 100644
--- a/Documentation/translations/zh_CN/devicetree/usage-model.rst
+++ b/Documentation/translations/zh_CN/devicetree/usage-model.rst
@@ -1,7 +1,7 @@
.. SPDX-License-Identifier: GPL-2.0
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/Devicetree/usage-model.rst
+:Original: Documentation/devicetree/usage-model.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/doc-guide/kernel-doc.rst b/Documentation/translations/zh_CN/doc-guide/kernel-doc.rst
index 82ec84470c0b..ccfb9b8329c2 100644
--- a/Documentation/translations/zh_CN/doc-guide/kernel-doc.rst
+++ b/Documentation/translations/zh_CN/doc-guide/kernel-doc.rst
@@ -14,7 +14,7 @@ Linux内核æºæ–‡ä»¶å¯ä»¥åŒ…å«kernel-docæ ¼å¼çš„结构化文档注释,用ä»
实际有ç€æ˜Žæ˜¾çš„ä¸åŒã€‚内核æºåŒ…å«æˆåƒä¸Šä¸‡ä¸ªkernel-doc注释。请åšæŒéµå¾ª
此处æ述的风格。
-.. note:: kernel-doc无法包å«Rust代ç ï¼šè¯·å‚考 Documentation/rust/docs.rst 。
+.. note:: kernel-doc无法包å«Rust代ç ï¼šè¯·å‚考 Documentation/rust/general-information.rst 。
从注释中æå–kernel-doc结构,并从中生æˆé€‚当的 `Sphinx C 域`_ 函数和带有锚点的
类型æ述。这些注释将被过滤以生æˆç‰¹æ®Škernel-doc高亮和交å‰å¼•ç”¨ã€‚详è§ä¸‹æ–‡ã€‚
diff --git a/Documentation/translations/zh_CN/driver-api/gpio/index.rst b/Documentation/translations/zh_CN/driver-api/gpio/index.rst
new file mode 100644
index 000000000000..9ab64e94aced
--- /dev/null
+++ b/Documentation/translations/zh_CN/driver-api/gpio/index.rst
@@ -0,0 +1,69 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../../disclaimer-zh_CN.rst
+
+:Original: Documentation/driver-api/gpio/index.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+=======================
+通用型输入/输出(GPIO)
+=======================
+
+目录:
+
+.. toctree::
+ :maxdepth: 2
+
+ legacy
+
+Todolist:
+
+* intro
+* using-gpio
+* driver
+* consumer
+* board
+* drivers-on-gpio
+* bt8xxgpio
+
+核心
+====
+
+该API在以下内核代ç ä¸­:
+
+include/linux/gpio/driver.h
+
+drivers/gpio/gpiolib.c
+
+ACPI支æŒ
+========
+
+该API在以下内核代ç ä¸­:
+
+drivers/gpio/gpiolib-acpi.c
+
+设备树支æŒ
+==========
+
+该API在以下内核代ç ä¸­:
+
+drivers/gpio/gpiolib-of.c
+
+设备管ç†æ”¯æŒ
+============
+
+该API在以下内核代ç ä¸­:
+
+drivers/gpio/gpiolib-devres.c
+
+sysfs帮助(函数)
+=================
+
+该API在以下内核代ç ä¸­:
+
+drivers/gpio/gpiolib-sysfs.c
diff --git a/Documentation/translations/zh_CN/gpio.txt b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
index a23ee14fc927..6399521d0548 100644
--- a/Documentation/translations/zh_CN/gpio.txt
+++ b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst
@@ -1,39 +1,28 @@
-Chinese translated version of Documentation/admin-guide/gpio
+.. SPDX-License-Identifier: GPL-2.0
-If you have any comment or update to the content, please contact the
-original document maintainer directly. However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help. Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
+.. include:: ../../disclaimer-zh_CN.rst
-Maintainer: Grant Likely <grant.likely@secretlab.ca>
- Linus Walleij <linus.walleij@linaro.org>
-Chinese maintainer: Fu Wei <tekkamanninja@gmail.com>
----------------------------------------------------------------------
-Documentation/admin-guide/gpio 的中文翻译
+:Original: Documentation/driver-api/gpio/legacy.rst
-如果想评论或更新本文的内容,请直接è”系原文档的维护者。如果你使用英文
-交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘中文版维护者求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻
-译存在问题,请è”系中文版维护者。
-英文版维护者: Grant Likely <grant.likely@secretlab.ca>
- Linus Walleij <linus.walleij@linaro.org>
-中文版维护者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
-中文版翻译者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
-中文版校译者: 傅炜 Fu Wei <tekkamanninja@gmail.com>
+:翻译:
+ 傅炜 Fu Wei <tekkamanninja@gmail.com>
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
-以下为正文
----------------------------------------------------------------------
-GPIO 接å£
+:校译:
-本文档æ供了一个在Linux下访问GPIO的公约概述。
+
+传统GPIO接å£
+============
+
+本文档概述了Linux下的GPIO访问公约。
这些函数以 gpio_* 作为å‰ç¼€ã€‚其他的函数ä¸å…许使用这样的å‰ç¼€æˆ–相关的
__gpio_* å‰ç¼€ã€‚
-什么是GPIO?
-==========
+什么是GPIO?
+============
"通用输入/输出å£"(GPIO)是一个çµæ´»çš„由软件控制的数字信å·ã€‚他们å¯
由多ç§èŠ¯ç‰‡æä¾›,且对于从事嵌入å¼å’Œå®šåˆ¶ç¡¬ä»¶çš„ Linux å¼€å‘者æ¥è¯´æ˜¯
比较熟悉。æ¯ä¸ªGPIO 都代表一个连接到特定引脚或çƒæ …阵列(BGA)å°è£…中
@@ -99,6 +88,7 @@ GPIO 公约
标识 GPIO
---------
+
GPIO 是通过无符å·æ•´åž‹æ¥æ ‡è¯†çš„,范围是 0 到 MAX_INT。ä¿ç•™â€œè´Ÿâ€æ•°
用于其他目的,例如标识信å·â€œåœ¨è¿™ä¸ªæ¿å­ä¸Šä¸å¯ç”¨â€æˆ–指示错误。未接触底层
硬件的代ç ä¼šå¿½ç•¥è¿™äº›æ•´æ•°ã€‚
@@ -115,7 +105,7 @@ FPGA 的特定æ¿å­ä¸Šä½¿ç”¨ 80-95。编å·ä¸ä¸€å®šè¦è¿žç»­,那些平å°ä¸­ï¼
如果你è¦åˆå§‹åŒ–一个带有无效 GPIO ç¼–å·çš„结构体,å¯ä»¥ä½¿ç”¨ä¸€äº›è´Ÿç¼–ç 
(如"-EINVAL"),那将使其永远ä¸ä¼šæ˜¯æœ‰æ•ˆã€‚æ¥æµ‹è¯•è¿™æ ·ä¸€ä¸ªç»“构体中的编å·
-是å¦å…³è”一个 GPIO,你å¯ä½¿ç”¨ä»¥ä¸‹æ–­è¨€:
+是å¦å…³è”一个 GPIO,你å¯ä½¿ç”¨ä»¥ä¸‹æ–­è¨€::
int gpio_is_valid(int number);
@@ -128,11 +118,12 @@ FPGA 的特定æ¿å­ä¸Šä½¿ç”¨ 80-95。编å·ä¸ä¸€å®šè¦è¿žç»­,那些平å°ä¸­ï¼
使用 GPIO
---------
+
对于一个 GPIO,系统应该åšçš„第一件事情就是通过 gpio_request()
函数分é…它,è§ä¸‹æ–‡ã€‚
接下æ¥æ˜¯è®¾ç½®I/Oæ–¹å‘,这通常是在æ¿çº§å¯åŠ¨ä»£ç ä¸­ä¸ºæ‰€ä½¿ç”¨çš„ GPIO 设置
-platform_device 时完æˆã€‚
+platform_device 时完æˆ::
/* 设置为输入或输出, 返回 0 æˆ–è´Ÿçš„é”™è¯¯ä»£ç  */
int gpio_direction_input(unsigned gpio);
@@ -157,12 +148,13 @@ get/set(获å–/设置)函数调用没法返回错误,且有å¯èƒ½æ˜¯é…置错误
访问自旋é”安全的 GPIO
--------------------
+---------------------
+
大多数 GPIO 控制器å¯ä»¥é€šè¿‡å†…存读/写指令æ¥è®¿é—®ã€‚这些指令ä¸ä¼šä¼‘眠,å¯ä»¥
安全地在硬(éžçº¿ç¨‹)中断例程和类似的上下文中完æˆã€‚
对于那些用 gpio_cansleep()测试总是返回失败的 GPIO(è§ä¸‹æ–‡),使用
-以下的函数访问:
+以下的函数访问::
/* GPIO 输入:返回零或éžé›¶ */
int gpio_get_value(unsigned gpio);
@@ -188,17 +180,18 @@ GPIO值是布尔值,零表示低电平,éžé›¶è¡¨ç¤ºé«˜ç”µå¹³ã€‚当读å–一ä
访问å¯èƒ½ä¼‘眠的 GPIO
------------------
+-------------------
+
æŸäº› GPIO 控制器必须通过基于总线(如 I2C 或 SPI)的消æ¯è®¿é—®ã€‚读或写这些
GPIO 值的命令需è¦ç­‰å¾…其信æ¯æŽ’到队首æ‰å‘é€å‘½ä»¤ï¼Œå†èŽ·å¾—å…¶å馈。期间需è¦
休眠,这ä¸èƒ½åœ¨ IRQ 例程(中断上下文)中执行。
支æŒæ­¤ç±» GPIO çš„å¹³å°é€šè¿‡ä»¥ä¸‹å‡½æ•°è¿”回éžé›¶å€¼æ¥åŒºåˆ†å‡ºè¿™ç§ GPIO。(此函数需è¦
-一个之å‰é€šè¿‡ gpio_request 分é…到的有效 GPIO ç¼–å·):
+一个之å‰é€šè¿‡ gpio_request 分é…到的有效 GPIO ç¼–å·)::
int gpio_cansleep(unsigned gpio);
-ä¸ºäº†è®¿é—®è¿™ç§ GPIO,内核定义了一套ä¸åŒçš„函数:
+ä¸ºäº†è®¿é—®è¿™ç§ GPIO,内核定义了一套ä¸åŒçš„函数::
/* GPIO 输入:返回零或éžé›¶ ,å¯èƒ½ä¼šä¼‘眠 */
int gpio_get_value_cansleep(unsigned gpio);
@@ -214,25 +207,26 @@ GPIO 值的命令需è¦ç­‰å¾…其信æ¯æŽ’到队首æ‰å‘é€å‘½ä»¤ï¼Œå†èŽ·å¾—å…¶
事实,这些处ç†ä¾‹ç¨‹å®žé™…上和自旋é”安全的函数是一样的。
** 除此之外 ** 调用设置和é…置此类 GPIO 的函数也必须在å…许休眠的上下文中,
-因为它们å¯èƒ½ä¹Ÿéœ€è¦è®¿é—® GPIO 控制器芯片: (这些设置函数通常在æ¿çº§å¯åŠ¨ä»£ç æˆ–者
-驱动探测/断开代ç ä¸­ï¼Œæ‰€ä»¥è¿™æ˜¯ä¸€ä¸ªå®¹æ˜“满足的约æŸæ¡ä»¶ã€‚)
+因为它们å¯èƒ½ä¹Ÿéœ€è¦è®¿é—® GPIO 控制器芯片 (这些设置函数通常在æ¿çº§å¯åŠ¨ä»£ç æˆ–者
+驱动探测/断开代ç ä¸­ï¼Œæ‰€ä»¥è¿™æ˜¯ä¸€ä¸ªå®¹æ˜“满足的约æŸæ¡ä»¶ã€‚) ::
- gpio_direction_input()
- gpio_direction_output()
- gpio_request()
+ gpio_direction_input()
+ gpio_direction_output()
+ gpio_request()
-## gpio_request_one()
-## gpio_request_array()
-## gpio_free_array()
+ ## gpio_request_one()
+ ## gpio_request_array()
+ ## gpio_free_array()
- gpio_free()
- gpio_set_debounce()
+ gpio_free()
+ gpio_set_debounce()
声明和释放 GPIO
-----------------------------
-为了有助于æ•èŽ·ç³»ç»Ÿé…置错误,定义了两个函数。
+----------------
+
+为了有助于æ•èŽ·ç³»ç»Ÿé…置错误,定义了两个函数::
/* 申请 GPIO, 返回 0 或负的错误代ç .
* éžç©ºæ ‡ç­¾å¯èƒ½æœ‰åŠ©äºŽè¯Šæ–­.
@@ -256,9 +250,9 @@ GPIO 值的命令需è¦ç­‰å¾…其信æ¯æŽ’到队首æ‰å‘é€å‘½ä»¤ï¼Œå†èŽ·å¾—å…¶
æŸäº›å¹³å°å¯èƒ½ä¹Ÿä½¿ç”¨ GPIO 作为电æºç®¡ç†æ¿€æ´»ä¿¡å·(例如通过关闭未使用芯片区和
简å•åœ°å…³é—­æœªä½¿ç”¨æ—¶é’Ÿ)。
-对于 GPIO 使用 pinctrl å­ç³»ç»Ÿå·²çŸ¥çš„引脚,å­ç³»ç»Ÿåº”该被告知其使用情况;
+对于 GPIO 使用引脚控制å­ç³»ç»Ÿå·²çŸ¥çš„引脚,å­ç³»ç»Ÿåº”该被告知其使用情况;
一个 gpiolib 驱动的 .request()æ“作应调用 pinctrl_gpio_request(),
-而 gpiolib 驱动的 .free()æ“作应调用 pinctrl_gpio_free()。pinctrl
+而 gpiolib 驱动的 .free()æ“作应调用 pinctrl_gpio_free()。引脚控制
å­ç³»ç»Ÿå…许 pinctrl_gpio_request()在æŸä¸ªå¼•è„šæˆ–引脚组以å¤ç”¨å½¢å¼â€œå±žäºŽâ€
一个设备时都æˆåŠŸè¿”回。
@@ -270,7 +264,7 @@ GPIO 值的命令需è¦ç­‰å¾…其信æ¯æŽ’到队首æ‰å‘é€å‘½ä»¤ï¼Œå†èŽ·å¾—å…¶
æŸäº›å¹³å°å…许部分或所有 GPIO ä¿¡å·ä½¿ç”¨ä¸åŒçš„引脚。类似的,GPIO 或引脚的
其他方é¢ä¹Ÿéœ€è¦é…置,如上拉/下拉。平å°è½¯ä»¶åº”该在对这些 GPIO 调用
-gpio_request()å‰å°†è¿™ç±»ç»†èŠ‚é…置好,例如使用 pinctrl å­ç³»ç»Ÿçš„映射表,
+gpio_request()å‰å°†è¿™ç±»ç»†èŠ‚é…置好,例如使用引脚控制å­ç³»ç»Ÿçš„映射表,
使得 GPIO 的用户无须关注这些细节。
还有一个值得注æ„的是在释放 GPIO å‰ï¼Œä½ å¿…é¡»åœæ­¢ä½¿ç”¨å®ƒã€‚
@@ -278,7 +272,7 @@ gpio_request()å‰å°†è¿™ç±»ç»†èŠ‚é…置好,例如使用 pinctrl å­ç³»ç»Ÿçš„映
注æ„:申请一个 GPIO 并没有以任何方å¼é…置它,åªä¸è¿‡æ ‡è¯†é‚£ä¸ª GPIO 处于使用
状æ€ã€‚必须有å¦å¤–的代ç æ¥å¤„ç†å¼•è„šé…ç½®(如控制 GPIO 使用的引脚ã€ä¸Šæ‹‰/下拉)。
-考虑到大多数情况下声明 GPIO 之åŽå°±ä¼šç«‹å³é…置它们,所以定义了以下三个辅助函数:
+考虑到大多数情况下声明 GPIO 之åŽå°±ä¼šç«‹å³é…置它们,所以定义了以下三个辅助函数::
/* 申请一个 GPIO ä¿¡å·, åŒæ—¶é€šè¿‡ç‰¹å®šçš„'flags'åˆå§‹åŒ–é…ç½®,
* 其他和 gpio_request()çš„å‚数和返回值相åŒ
@@ -326,7 +320,7 @@ gpio_request()å‰å°†è¿™ç±»ç»†èŠ‚é…置好,例如使用 pinctrl å­ç³»ç»Ÿçš„映
å°†æ¥è¿™äº›æ ‡å¿—å¯èƒ½æ‰©å±•åˆ°æ”¯æŒæ›´å¤šçš„属性。
更进一步,为了更简å•åœ°å£°æ˜Ž/释放多个 GPIO,'struct gpio'被引进æ¥å°è£…所有
-这三个领域:
+这三个领域::
struct gpio {
unsigned gpio;
@@ -334,7 +328,7 @@ gpio_request()å‰å°†è¿™ç±»ç»†èŠ‚é…置好,例如使用 pinctrl å­ç³»ç»Ÿçš„映
const char *label;
};
-一个典型的用例:
+一个典型的用例::
static struct gpio leds_gpios[] = {
{ 32, GPIOF_OUT_INIT_HIGH, "Power LED" }, /* é»˜è®¤å¼€å¯ */
@@ -356,9 +350,10 @@ gpio_request()å‰å°†è¿™ç±»ç»†èŠ‚é…置好,例如使用 pinctrl å­ç³»ç»Ÿçš„映
GPIO 映射到 IRQ
---------------------
+----------------
+
GPIO ç¼–å·æ˜¯æ— ç¬¦å·æ•´æ•°;IRQ ç¼–å·ä¹Ÿæ˜¯ã€‚这些构æˆäº†ä¸¤ä¸ªé€»è¾‘上ä¸åŒçš„命å空间
-(GPIO 0 ä¸ä¸€å®šä½¿ç”¨ IRQ 0)。你å¯ä»¥é€šè¿‡ä»¥ä¸‹å‡½æ•°åœ¨å®ƒä»¬ä¹‹é—´å®žçŽ°æ˜ å°„:
+(GPIO 0 ä¸ä¸€å®šä½¿ç”¨ IRQ 0)。你å¯ä»¥é€šè¿‡ä»¥ä¸‹å‡½æ•°åœ¨å®ƒä»¬ä¹‹é—´å®žçŽ°æ˜ å°„::
/* 映射 GPIO ç¼–å·åˆ° IRQ ç¼–å· */
int gpio_to_irq(unsigned gpio);
@@ -384,7 +379,8 @@ irq_to_gpio()返回的éžé”™è¯¯å€¼å¤§å¤šæ•°é€šå¸¸å¯ä»¥è¢« gpio_get_value()所ä½
模拟开æ¼ä¿¡å·
-----------------------------
+------------
+
有时在åªæœ‰ä½Žç”µå¹³ä¿¡å·ä½œä¸ºå®žé™…驱动结果(译者注:多个输出连接于一点,逻辑电平
结果为所有输出的逻辑与)的时候,共享的信å·çº¿éœ€è¦ä½¿ç”¨â€œå¼€æ¼â€ä¿¡å·ã€‚(该术语
适用于 CMOS 管;而 TTL 用“集电æžå¼€è·¯â€ã€‚)一个上拉电阻使信å·ä¸ºé«˜ç”µå¹³ã€‚è¿™
@@ -408,9 +404,44 @@ irq_to_gpio()返回的éžé”™è¯¯å€¼å¤§å¤šæ•°é€šå¸¸å¯ä»¥è¢« gpio_get_value()所ä½
è¿™ä¸ä¸€å®šæ˜¯é”™è¯¯çš„。一个常è§çš„例å­å°±æ˜¯ I2C 时钟的延长:一个需è¦è¾ƒæ…¢æ—¶é’Ÿçš„
从设备延迟 SCK 的上å‡æ²¿ï¼Œè€Œ I2C 主设备相应地调整其信å·ä¼ è¾“速率。
+GPIO控制器和引脚控制å­ç³»ç»Ÿ
+--------------------------
+
+SOC上的GPIO控制器å¯èƒ½ä¸Žå¼•è„šæŽ§åˆ¶å­ç³»ç»Ÿç´§å¯†ç»“åˆï¼Œå³å¼•è„šå¯ä»¥ä¸Žå¯é€‰çš„gpio功
+能一起被其他功能使用。我们已ç»æ¶µç›–了这样的情况,例如一个GPIO控制器需è¦ä¿
+留一个引脚或通过调用以下任何一个引脚æ¥è®¾ç½®å…¶æ–¹å‘::
+
+ pinctrl_gpio_request()
+ pinctrl_gpio_free()
+ pinctrl_gpio_direction_input()
+ pinctrl_gpio_direction_output()
+
+但是,引脚控制å­ç³»ç»Ÿæ˜¯å¦‚何将GPIOå·ç ï¼ˆè¿™æ˜¯ä¸€ä¸ªå…¨å±€äº‹é¡¹ï¼‰ä¸ŽæŸä¸ªå¼•è„šæŽ§åˆ¶å™¨
+上的æŸä¸ªå¼•è„šäº¤å‰å…³è”的?
+
+这是通过注册引脚的“范围â€æ¥å®žçŽ°çš„,这基本上是交å‰å‚考表。这些æ述是在
+Documentation/driver-api/pin-control.rst
+
+虽然引脚分é…完全由引脚控制å­ç³»ç»Ÿç®¡ç†ï¼Œä½†gpio(在gpiolib下)ä»ç”±gpio驱动
+维护。å¯èƒ½å‘生的情况是,SoC中的ä¸åŒå¼•è„šèŒƒå›´ç”±ä¸åŒçš„gpio驱动器管ç†ã€‚
+
+这使得在调用 "pinctrl_gpio_request" 之å‰ï¼Œè®©gpio驱动å‘pin ctrlå­ç³»
+统宣布它们的引脚范围是åˆç†çš„,以便在使用任何gpio之å‰è¦æ±‚引脚控制å­ç³»ç»Ÿå‡†
+备相应的引脚。
+
+为此,gpio控制器å¯ä»¥ç”¨å¼•è„šæŽ§åˆ¶å­ç³»ç»Ÿæ³¨å†Œå…¶å¼•è„šèŒƒå›´ã€‚ç›®å‰æœ‰ä¸¤ç§æ–¹æ³•ï¼šæœ‰æˆ–
+无DT。
+
+关于对DT的支æŒï¼Œè¯·å‚考 Documentation/devicetree/bindings/gpio/gpio.txt.
+
+对于éžDT支æŒï¼Œç”¨æˆ·å¯ä»¥ç”¨é€‚当的å‚数调用gpiochip_add_pin_range(),将一
+系列的gpio引脚注册到引脚控制驱动上。为此,必须将引脚控制设备的å称字符串
+作为å‚数之一传给这个程åºã€‚
+
+
+这些公约忽略了什么?
+====================
-这些公约忽略了什么?
-================
这些公约忽略的最大一件事就是引脚å¤ç”¨ï¼Œå› ä¸ºè¿™å±žäºŽé«˜åº¦èŠ¯ç‰‡ç‰¹å®šçš„属性且
没有å¯ç§»æ¤æ€§ã€‚æŸä¸ªå¹³å°å¯èƒ½ä¸éœ€è¦æ˜Žç¡®çš„å¤ç”¨ä¿¡æ¯ï¼›æœ‰çš„对于任æ„给定的引脚
å¯èƒ½åªæœ‰ä¸¤ä¸ªåŠŸèƒ½é€‰é¡¹ï¼›æœ‰çš„å¯èƒ½æ¯ä¸ªå¼•è„šæœ‰å…«ä¸ªåŠŸèƒ½é€‰é¡¹ï¼›æœ‰çš„å¯èƒ½å¯ä»¥å°†
@@ -433,8 +464,9 @@ Linux 的系统。)
当å‰ï¼ŒåŠ¨æ€å®šä¹‰ GPIO 并ä¸æ˜¯æ ‡å‡†çš„,例如作为é…置一个带有æŸäº› GPIO 扩展器的
附加电路æ¿çš„副作用。
-GPIO 实现者的框架 (å¯é€‰)
-=====================
+GPIO 实现者的框架(å¯é€‰ï¼‰
+=========================
+
å‰é¢æ到了,有一个å¯é€‰çš„实现框架,让平å°ä½¿ç”¨ç›¸åŒçš„编程接å£ï¼Œæ›´åŠ ç®€å•åœ°æ”¯æŒ
ä¸åŒç§ç±»çš„ GPIO 控制器。这个框架称为"gpiolib"。
@@ -444,15 +476,16 @@ GPIO 实现者的框架 (å¯é€‰)
控制器驱动: gpio_chip
--------------------
+---------------------
+
在框架中æ¯ä¸ª GPIO 控制器都包装为一个 "struct gpio_chip",他包å«äº†
该类型的æ¯ä¸ªæŽ§åˆ¶å™¨çš„常用信æ¯:
- - 设置 GPIO æ–¹å‘的方法
- - 用于访问 GPIO 值的方法
- - 告知调用其方法是å¦å¯èƒ½ä¼‘眠的标志
- - å¯é€‰çš„ debugfs ä¿¡æ¯å¯¼å‡ºæ–¹æ³• (显示类似上拉é…置一样的é¢å¤–状æ€)
- - 诊断标签
+ - 设置 GPIO æ–¹å‘的方法
+ - 用于访问 GPIO 值的方法
+ - 告知调用其方法是å¦å¯èƒ½ä¼‘眠的标志
+ - å¯é€‰çš„ debugfs ä¿¡æ¯å¯¼å‡ºæ–¹æ³• (显示类似上拉é…置一样的é¢å¤–状æ€)
+ - 诊断标签
也包å«äº†æ¥è‡ª device.platform_data çš„æ¯ä¸ªå®žä¾‹çš„æ•°æ®ï¼šå®ƒç¬¬ä¸€ä¸ª GPIO çš„
ç¼–å·å’Œå®ƒå¯ç”¨çš„ GPIO çš„æ•°é‡ã€‚
@@ -471,7 +504,8 @@ GPIO 实现者的框架 (å¯é€‰)
å¹³å°æ”¯æŒ
--------
+--------
+
为了支æŒè¿™ä¸ªæ¡†æž¶ï¼Œä¸€ä¸ªå¹³å°çš„ Kconfig 文件将会 "select"(选择)
ARCH_REQUIRE_GPIOLIB 或 ARCH_WANT_OPTIONAL_GPIOLIB,并让它的
<asm/gpio.h> åŒ…å« <asm-generic/gpio.h>,åŒæ—¶å®šä¹‰ä¸‰ä¸ªæ–¹æ³•:
@@ -489,7 +523,7 @@ ARCH_WANT_OPTIONAL_GPIOLIB æ„å‘³ç€ gpiolib 核心默认关闭,且用户å¯ä»¥
如果这些选项都没被选择,该平å°å°±ä¸é€šè¿‡ GPIO-lib æ”¯æŒ GPIO,且代ç ä¸å¯ä»¥
被用户使能。
-以下这些方法的实现å¯ä»¥ç›´æŽ¥ä½¿ç”¨æ¡†æž¶ä»£ç ,并总是通过 gpio_chip 调度:
+以下这些方法的实现å¯ä»¥ç›´æŽ¥ä½¿ç”¨æ¡†æž¶ä»£ç ,并总是通过 gpio_chip 调度::
#define gpio_get_value __gpio_get_value
#define gpio_set_value __gpio_set_value
@@ -508,7 +542,8 @@ arch_initcall()或者更早的地方集æˆè¿›å¹³å°åˆå§‹åŒ–代ç ï¼Œä½¿è¿™äº› G
且他们通常å¯ä»¥ä½œä¸º IRQ 使用。
æ¿çº§æ”¯æŒ
--------
+--------
+
对于外部 GPIO 控制器(例如 I2C 或 SPI 扩展器ã€ä¸“用芯片ã€å¤šåŠŸèƒ½å™¨ä»¶ã€FPGA
或 CPLD),大多数常用æ¿çº§ç‰¹å®šä»£ç éƒ½å¯ä»¥æ³¨å†ŒæŽ§åˆ¶å™¨è®¾å¤‡ï¼Œå¹¶ä¿è¯ä»–们的驱动知é“
gpiochip_add()所使用的 GPIO ç¼–å·ã€‚他们的起始编å·é€šå¸¸è·Ÿåœ¨å¹³å°ç‰¹å®šçš„ GPIO
@@ -526,8 +561,9 @@ GPIO å¯ä»¥å·¥ä½œä¹‹åŽæ‰å¯è¢«æ³¨å†Œã€‚解决这类ä¾èµ–的的一ç§æ–¹æ³•æ˜¯
设备å˜æˆæ— æ•ˆæ—¶ç§»é™¤å®ƒä»¬ã€‚
-用户空间的 Sysfs 接å£(å¯é€‰)
-========================
+用户空间的 Sysfs 接å£ï¼ˆå¯é€‰ï¼‰
+=============================
+
使用“gpiolibâ€å®žçŽ°æ¡†æž¶çš„å¹³å°å¯ä»¥é€‰æ‹©é…置一个 GPIO çš„ sysfs 用户接å£ã€‚
è¿™ä¸åŒäºŽ debugfs 接å£ï¼Œå› ä¸ºå®ƒæ供的是对 GPIOæ–¹å‘和值的控制,而ä¸åªæ˜¾ç¤º
一个GPIO 的状æ€æ‘˜è¦ã€‚此外,它å¯ä»¥å‡ºçŽ°åœ¨æ²¡æœ‰è°ƒè¯•æ”¯æŒçš„产å“级系统中。
@@ -548,6 +584,7 @@ GPIO å¯ä»¥å·¥ä½œä¹‹åŽæ‰å¯è¢«æ³¨å†Œã€‚解决这类ä¾èµ–的的一ç§æ–¹æ³•æ˜¯
Sysfs 中的路径
--------------
+
在/sys/class/gpio 中有 3 类入å£:
- 用于在用户空间控制 GPIO 的控制接å£;
@@ -625,8 +662,9 @@ GPIO 控制器的路径类似 /sys/class/gpio/gpiochip42/ (对于从#42 GPIO
从内核代ç ä¸­å¯¼å‡º
--------------
-内核代ç å¯ä»¥æ˜Žç¡®åœ°ç®¡ç†é‚£äº›å·²é€šè¿‡ gpio_request()申请的 GPIO 的导出:
+----------------
+
+内核代ç å¯ä»¥æ˜Žç¡®åœ°ç®¡ç†é‚£äº›å·²é€šè¿‡ gpio_request()申请的 GPIO 的导出::
/* 导出 GPIO 到用户空间 */
int gpio_export(unsigned gpio, bool direction_may_change);
@@ -648,3 +686,9 @@ GPIO 控制器的路径类似 /sys/class/gpio/gpiochip42/ (对于从#42 GPIO
在 GPIO 被导出之åŽï¼Œgpio_export_link()å…许在 sysfs 文件系统的任何地方
创建一个到这个 GPIO sysfs 节点的符å·é“¾æŽ¥ã€‚这样驱动就å¯ä»¥é€šè¿‡ä¸€ä¸ªæ述性的
å字,在 sysfs 中他们所拥有的设备下æ供一个(到这个 GPIO sysfs 节点的)接å£ã€‚
+
+
+APIå‚考
+=======
+
+本节中列出的函数已被废弃。在新的代ç ä¸­åº”该使用基于GPIOæ述符的API。
diff --git a/Documentation/translations/zh_CN/driver-api/index.rst b/Documentation/translations/zh_CN/driver-api/index.rst
new file mode 100644
index 000000000000..ba354e1f4e6d
--- /dev/null
+++ b/Documentation/translations/zh_CN/driver-api/index.rst
@@ -0,0 +1,132 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/driver-api/index.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+========================
+Linux驱动实现者的API指å—
+========================
+
+内核æ供了å„ç§å„样的接å£æ¥æ”¯æŒè®¾å¤‡é©±åŠ¨çš„å¼€å‘。这份文档åªæ˜¯å¯¹å…¶ä¸­ä¸€äº›æŽ¥å£è¿›è¡Œäº†
+一定程度的整ç†â€”—希望éšç€æ—¶é—´çš„推移,它能å˜å¾—更好ï¼å¯ç”¨çš„å°èŠ‚å¯ä»¥åœ¨ä¸‹é¢çœ‹åˆ°ã€‚
+
+.. class:: toc-title
+
+ 目录列表:
+
+.. toctree::
+ :maxdepth: 2
+
+ gpio/index
+ io_ordering
+
+Todolist:
+
+* driver-model/index
+* basics
+* infrastructure
+* ioctl
+* early-userspace/index
+* pm/index
+* clk
+* device-io
+* dma-buf
+* device_link
+* component
+* message-based
+* infiniband
+* aperture
+* frame-buffer
+* regulator
+* reset
+* iio/index
+* input
+* usb/index
+* firewire
+* pci/index
+* cxl/index
+* spi
+* i2c
+* ipmb
+* ipmi
+* i3c/index
+* interconnect
+* devfreq
+* hsi
+* edac
+* scsi
+* libata
+* target
+* mailbox
+* mtdnand
+* miscellaneous
+* mei/index
+* mtd/index
+* mmc/index
+* nvdimm/index
+* w1
+* rapidio/index
+* s390-drivers
+* vme
+* 80211/index
+* uio-howto
+* firmware/index
+* pin-control
+* md/index
+* media/index
+* misc_devices
+* nfc/index
+* dmaengine/index
+* slimbus
+* soundwire/index
+* thermal/index
+* fpga/index
+* acpi/index
+* auxiliary_bus
+* backlight/lp855x-driver.rst
+* connector
+* console
+* dcdbas
+* eisa
+* isa
+* isapnp
+* io-mapping
+* generic-counter
+* memory-devices/index
+* men-chameleon-bus
+* ntb
+* nvmem
+* parport-lowlevel
+* pps
+* ptp
+* phy/index
+* pwm
+* pldmfw/index
+* rfkill
+* serial/index
+* sm501
+* surface_aggregator/index
+* switchtec
+* sync_file
+* tty/index
+* vfio-mediated-device
+* vfio
+* vfio-pci-device-specific-driver-acceptance
+* xilinx/index
+* xillybus
+* zorro
+* hte/index
+
+.. only:: subproject and html
+
+ Indices
+ =======
+
+ * :ref:`genindex`
diff --git a/Documentation/translations/zh_CN/driver-api/io_ordering.rst b/Documentation/translations/zh_CN/driver-api/io_ordering.rst
new file mode 100644
index 000000000000..4dbfa4ce92a0
--- /dev/null
+++ b/Documentation/translations/zh_CN/driver-api/io_ordering.rst
@@ -0,0 +1,60 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/driver-api/io_ordering.rst
+
+:翻译:
+
+ æž—æ°¸å¬ Lin Yongting <linyongting@gmail.com>
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+===========================
+对内存映射地å€çš„I/O写入排åº
+===========================
+
+在æŸäº›å¹³å°ä¸Šï¼Œæ‰€è°“的内存映射I/O是弱顺åºã€‚在这些平å°ä¸Šï¼Œé©±åŠ¨å¼€å‘者有责任
+ä¿è¯I/O内存映射地å€çš„写æ“作按程åºå›¾æ„的顺åºè¾¾åˆ°è®¾å¤‡ã€‚通常读å–一个“安全â€
+设备寄存器或桥寄存器,触å‘IO芯片清刷未处ç†çš„写æ“作到达设备åŽæ‰å¤„ç†è¯»æ“作,
+而达到ä¿è¯ç›®çš„。驱动程åºé€šå¸¸åœ¨spinlockä¿æŠ¤çš„临界区退出之å‰ä½¿ç”¨è¿™ç§æŠ€æœ¯ã€‚
+这也å¯ä»¥ä¿è¯åŽé¢çš„写æ“作åªåœ¨å‰é¢çš„写æ“作之åŽåˆ°è¾¾è®¾å¤‡ï¼ˆè¿™éžå¸¸ç±»ä¼¼äºŽå†…å­˜
+å±éšœæ“作,mb(),ä¸è¿‡ä»…适用于I/O)。
+
+å‡è®¾ä¸€ä¸ªè®¾å¤‡é©±åŠ¨ç¨‹çš„具体例å­::
+
+ ...
+ CPU A: spin_lock_irqsave(&dev_lock, flags)
+ CPU A: val = readl(my_status);
+ CPU A: ...
+ CPU A: writel(newval, ring_ptr);
+ CPU A: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
+ CPU B: spin_lock_irqsave(&dev_lock, flags)
+ CPU B: val = readl(my_status);
+ CPU B: ...
+ CPU B: writel(newval2, ring_ptr);
+ CPU B: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
+
+上述例å­ä¸­ï¼Œè®¾å¤‡å¯èƒ½ä¼šå…ˆæŽ¥æ”¶åˆ°newval2的值,然åŽæŽ¥æ”¶åˆ°newval的值,问题就
+å‘生了。ä¸è¿‡å¾ˆå®¹æ˜“通过下é¢æ–¹æ³•æ¥ä¿®å¤::
+
+ ...
+ CPU A: spin_lock_irqsave(&dev_lock, flags)
+ CPU A: val = readl(my_status);
+ CPU A: ...
+ CPU A: writel(newval, ring_ptr);
+ CPU A: (void)readl(safe_register); /* é…置寄存器?*/
+ CPU A: spin_unlock_irqrestore(&dev_lock, flags)
+ ...
+ CPU B: spin_lock_irqsave(&dev_lock, flags)
+ CPU B: val = readl(my_status);
+ CPU B: ...
+ CPU B: writel(newval2, ring_ptr);
+ CPU B: (void)readl(safe_register); /* é…置寄存器?*/
+ CPU B: spin_unlock_irqrestore(&dev_lock, flags)
+
+在解决方案中,读å–safe_register寄存器,触å‘IO芯片清刷未处ç†çš„写æ“作,
+å†å¤„ç†åŽé¢çš„读æ“作,防止引å‘æ•°æ®ä¸ä¸€è‡´é—®é¢˜ã€‚
diff --git a/Documentation/translations/zh_CN/iio/iio_configfs.rst b/Documentation/translations/zh_CN/iio/iio_configfs.rst
index d5460e951804..eccaf1c644b4 100644
--- a/Documentation/translations/zh_CN/iio/iio_configfs.rst
+++ b/Documentation/translations/zh_CN/iio/iio_configfs.rst
@@ -37,10 +37,10 @@ configfsè½»æ¾é…置的对象(例如:设备,触å‘器)。
3. 软件触å‘器
=============
-IIO默认configfs组之一是“触å‘器â€ç»„。 挂载configfsåŽå¯ä»¥è‡ªåŠ¨è®¿é—®å®ƒï¼Œå¹¶ä¸”å¯
+IIO默认configfs组之一是“触å‘器â€ç»„。挂载configfsåŽå¯ä»¥è‡ªåŠ¨è®¿é—®å®ƒï¼Œå¹¶ä¸”å¯
以在/config/iio/triggers下找到。
-IIO软件触å‘器为创建多ç§è§¦å‘器类型æ供了支æŒã€‚ 通常在include/linux/iio
+IIO软件触å‘器为创建多ç§è§¦å‘器类型æ供了支æŒã€‚通常在include/linux/iio
/sw_trigger.h:中的接å£ä¸‹å°†æ–°çš„触å‘器类型实现为å•ç‹¬çš„内核模å—:
::
@@ -76,10 +76,10 @@ IIO软件触å‘器为创建多ç§è§¦å‘器类型æ供了支æŒã€‚ 通常在incl
.ops = &iio_trig_sample_ops,
};
-module_iio_sw_trigger_driver(iio_trig_sample);
+ module_iio_sw_trigger_driver(iio_trig_sample);
-æ¯ç§è§¦å‘器类型在/config/iio/triggers下都有其自己的目录。 加载iio-trig-sample
-模å—将创建“ trig-sampleâ€è§¦å‘器类型目录/config/iio/triggers/trig-sample.
+æ¯ç§è§¦å‘器类型在/config/iio/triggers下都有其自己的目录。加载iio-trig-sample
+模å—将创建“trig-sampleâ€è§¦å‘器类型目录/config/iio/triggers/trig-sample.
我们支æŒä»¥ä¸‹ä¸­æ–­æºï¼ˆè§¦å‘器类型)
@@ -102,3 +102,5 @@ module_iio_sw_trigger_driver(iio_trig_sample);
----------------------------
"hrtimerâ€è§¦å‘器类型没有æ¥è‡ª/config dir的任何å¯é…置属性。
+它确实引入了触å‘目录的sampling_frequency属性。
+该属性以Hz为å•ä½è®¾ç½®è½®è¯¢é¢‘率,精度为mHz。 \ No newline at end of file
diff --git a/Documentation/translations/zh_CN/index.rst b/Documentation/translations/zh_CN/index.rst
index ad7bb8c17562..2fc60e60feb4 100644
--- a/Documentation/translations/zh_CN/index.rst
+++ b/Documentation/translations/zh_CN/index.rst
@@ -108,6 +108,7 @@ TODOList:
:maxdepth: 2
core-api/index
+ driver-api/index
locking/index
accounting/index
cpu-freq/index
@@ -118,12 +119,12 @@ TODOList:
sound/index
filesystems/index
scheduler/index
- vm/index
+ mm/index
peci/index
+ PCI/index
TODOList:
-* driver-api/index
* block/index
* cdrom/index
* ide/index
@@ -148,7 +149,6 @@ TODOList:
* crypto/index
* bpf/index
* usb/index
-* PCI/index
* scsi/index
* misc-devices/index
* mhi/index
diff --git a/Documentation/translations/zh_CN/io_ordering.txt b/Documentation/translations/zh_CN/io_ordering.txt
deleted file mode 100644
index 7bb3086227ae..000000000000
--- a/Documentation/translations/zh_CN/io_ordering.txt
+++ /dev/null
@@ -1,67 +0,0 @@
-Chinese translated version of Documentation/driver-api/io_ordering.rst
-
-If you have any comment or update to the content, please contact the
-original document maintainer directly. However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help. Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
-
-Chinese maintainer: Lin Yongting <linyongting@gmail.com>
----------------------------------------------------------------------
-Documentation/driver-api/io_ordering.rst 的中文翻译
-
-如果想评论或更新本文的内容,请直接è”系原文档的维护者。如果你使用英文
-交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘中文版维护者求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻
-译存在问题,请è”系中文版维护者。
-
-中文版维护者: æž—æ°¸å¬ Lin Yongting <linyongting@gmail.com>
-中文版翻译者: æž—æ°¸å¬ Lin Yongting <linyongting@gmail.com>
-中文版校译者: æž—æ°¸å¬ Lin Yongting <linyongting@gmail.com>
-
-
-以下为正文
----------------------------------------------------------------------
-
-在æŸäº›å¹³å°ä¸Šï¼Œæ‰€è°“的内存映射I/O是弱顺åºã€‚在这些平å°ä¸Šï¼Œé©±åŠ¨å¼€å‘者有责任
-ä¿è¯I/O内存映射地å€çš„写æ“作按程åºå›¾æ„的顺åºè¾¾åˆ°è®¾å¤‡ã€‚通常读å–一个“安全â€
-设备寄存器或桥寄存器,触å‘IO芯片清刷未处ç†çš„写æ“作到达设备åŽæ‰å¤„ç†è¯»æ“作,
-而达到ä¿è¯ç›®çš„。驱动程åºé€šå¸¸åœ¨spinlockä¿æŠ¤çš„临界区退出之å‰ä½¿ç”¨è¿™ç§æŠ€æœ¯ã€‚
-这也å¯ä»¥ä¿è¯åŽé¢çš„写æ“作åªåœ¨å‰é¢çš„写æ“作之åŽåˆ°è¾¾è®¾å¤‡ï¼ˆè¿™éžå¸¸ç±»ä¼¼äºŽå†…å­˜
-å±éšœæ“作,mb(),ä¸è¿‡ä»…适用于I/O)。
-
-å‡è®¾ä¸€ä¸ªè®¾å¤‡é©±åŠ¨ç¨‹çš„具体例å­ï¼š
-
- ...
-CPU A: spin_lock_irqsave(&dev_lock, flags)
-CPU A: val = readl(my_status);
-CPU A: ...
-CPU A: writel(newval, ring_ptr);
-CPU A: spin_unlock_irqrestore(&dev_lock, flags)
- ...
-CPU B: spin_lock_irqsave(&dev_lock, flags)
-CPU B: val = readl(my_status);
-CPU B: ...
-CPU B: writel(newval2, ring_ptr);
-CPU B: spin_unlock_irqrestore(&dev_lock, flags)
- ...
-
-上述例å­ä¸­ï¼Œè®¾å¤‡å¯èƒ½ä¼šå…ˆæŽ¥æ”¶åˆ°newval2的值,然åŽæŽ¥æ”¶åˆ°newval的值,问题就
-å‘生了。ä¸è¿‡å¾ˆå®¹æ˜“通过下é¢æ–¹æ³•æ¥ä¿®å¤ï¼š
-
- ...
-CPU A: spin_lock_irqsave(&dev_lock, flags)
-CPU A: val = readl(my_status);
-CPU A: ...
-CPU A: writel(newval, ring_ptr);
-CPU A: (void)readl(safe_register); /* é…置寄存器?*/
-CPU A: spin_unlock_irqrestore(&dev_lock, flags)
- ...
-CPU B: spin_lock_irqsave(&dev_lock, flags)
-CPU B: val = readl(my_status);
-CPU B: ...
-CPU B: writel(newval2, ring_ptr);
-CPU B: (void)readl(safe_register); /* é…置寄存器?*/
-CPU B: spin_unlock_irqrestore(&dev_lock, flags)
-
-在解决方案中,读å–safe_register寄存器,触å‘IO芯片清刷未处ç†çš„写æ“作,
-å†å¤„ç†åŽé¢çš„读æ“作,防止引å‘æ•°æ®ä¸ä¸€è‡´é—®é¢˜ã€‚
diff --git a/Documentation/translations/zh_CN/kernel-hacking/hacking.rst b/Documentation/translations/zh_CN/kernel-hacking/hacking.rst
index f2bc154c5bcc..9112949b993c 100644
--- a/Documentation/translations/zh_CN/kernel-hacking/hacking.rst
+++ b/Documentation/translations/zh_CN/kernel-hacking/hacking.rst
@@ -81,7 +81,7 @@
过硬件中断)的“软件中断â€å°†è¿è¡Œï¼ˆ ``kernel/softirq.c`` )。
此处完æˆäº†è®¸å¤šçœŸæ­£çš„中断处ç†å·¥ä½œã€‚在å‘SMP过渡的早期,åªæœ‰â€œbottom halves下åŠ
-部â€ï¼ˆBHs)机制,无法利用多个CPU的优势。在从那些一团糟的就电脑切æ¢è¿‡æ¥åŽä¸ä¹…,
+部â€ï¼ˆBHs)机制,无法利用多个CPU的优势。在从那些一团糟的旧电脑切æ¢è¿‡æ¥åŽä¸ä¹…,
我们放弃了这个é™åˆ¶ï¼Œè½¬è€Œä½¿ç”¨â€œè½¯ä¸­æ–­â€ã€‚
``include/linux/interrupt.h`` 列出了ä¸åŒçš„软中断。定时器软中断是一个éžå¸¸é‡è¦
@@ -95,8 +95,7 @@
.. warning::
- “taskletâ€è¿™ä¸ªå字是误导性的:它们与“任务â€æ— å…³ï¼Œå¯èƒ½æ›´å¤šä¸Žå½“æ—¶
- 阿列克谢·库兹涅ä½å¤«äº«ç”¨çš„糟糕ä¼ç‰¹åŠ æœ‰å…³ã€‚
+ “taskletâ€è¿™ä¸ªå字是误导性的:它们与“任务â€æ— å…³ã€‚
ä½ å¯ä»¥ä½¿ç”¨ :c:func:`in_softirq()` å®ï¼ˆ ``include/linux/preempt.h`` )æ¥ç¡®è®¤
是å¦å¤„于软中断(或å­ä»»åŠ¡ï¼‰ä¸­ã€‚
@@ -247,7 +246,7 @@ Provide mechanism not policyâ€ã€‚
与 :c:func:`put_user()` å’Œ :c:func:`get_user()` ä¸åŒï¼Œå®ƒä»¬è¿”回未å¤åˆ¶çš„
æ•°æ®é‡ï¼ˆå³0ä»ç„¶æ„味ç€æˆåŠŸï¼‰ã€‚
-ã€æ˜¯çš„,这个愚蠢的接å£çœŸå¿ƒè®©æˆ‘尴尬。ç«çˆ†çš„å£æ°´ä»—大概æ¯å¹´éƒ½ä¼šå‘生。
+ã€æ˜¯çš„,这个讨厌的接å£çœŸå¿ƒè®©æˆ‘尴尬。ç«çˆ†çš„å£æ°´ä»—大概æ¯å¹´éƒ½ä¼šå‘生。
—— Rusty Russell】
这些函数å¯ä»¥éšå¼ç¡çœ ã€‚它ä¸åº”该在用户上下文之外调用(没有æ„义)ã€è°ƒç”¨æ—¶ç¦ç”¨ä¸­æ–­
@@ -538,9 +537,9 @@ Documentation/core-api/symbol-namespaces.rst 。
Linus和其他开å‘人员有时会更改开å‘内核中的函数或结构体å称;这样åšä¸ä»…是为了
让æ¯ä¸ªäººéƒ½ä¿æŒè­¦æƒ•ï¼Œè¿˜å映了一个é‡å¤§çš„更改(例如,ä¸èƒ½å†åœ¨æ‰“开中断的情况下
-调用,或者执行é¢å¤–的检查,或者ä¸æ‰§è¡Œä»¥å‰æ•èŽ·çš„检查)。通常这会附带一个linux
-内核邮件列表中相当全é¢çš„注释;请æœç´¢å­˜æ¡£ä»¥æŸ¥çœ‹ã€‚简å•åœ°å¯¹æ–‡ä»¶è¿›è¡Œå…¨å±€æ›¿æ¢é€šå¸¸
-会让事情å˜å¾— **更糟** 。
+调用,或者执行é¢å¤–的检查,或者ä¸æ‰§è¡Œä»¥å‰æ•èŽ·çš„检查)。通常这会附带å‘é€ä¸€ä¸ª
+相当全é¢çš„注释到相应的内核邮件列表中;请æœç´¢å­˜æ¡£ä»¥æŸ¥çœ‹ã€‚简å•åœ°å¯¹æ–‡ä»¶è¿›è¡Œå…¨å±€
+替æ¢é€šå¸¸åªä¼šè®©äº‹æƒ…å˜å¾— **更糟** 。
åˆå§‹åŒ–结构体æˆå‘˜
------------------
@@ -610,7 +609,7 @@ C++
为了让你的东西更正å¼ã€è¡¥ä¸æ›´æ•´æ´ï¼Œè¿˜æœ‰ä¸€äº›å·¥ä½œè¦åšï¼š
-- æžæ¸…楚你在è°çš„地界儿上干活。查看æºæ–‡ä»¶çš„顶部〠``MAINTAINERS`` 文件以åŠ
+- æžæ¸…楚你修改的代ç å±žäºŽè°ã€‚查看æºæ–‡ä»¶çš„根目录〠``MAINTAINERS`` 文件以åŠ
``CREDITS`` 文件的最åŽä¸€éƒ¨åˆ†ã€‚你应该和此人å调,确ä¿ä½ æ²¡æœ‰é‡æ–°å‘明轮å­ï¼Œ
或者å°è¯•ä¸€äº›å·²ç»è¢«æ‹’ç»çš„东西。
@@ -629,12 +628,12 @@ C++
“obj-$(CONFIG_xxx) += xxx.oâ€ã€‚语法记录在
Documentation/kbuild/makefiles.rst 。
-- 如果你åšäº†ä¸€äº›æœ‰æ„义的事情,那å¯ä»¥æŠŠè‡ªå·±æ”¾è¿› ``CREDITS`` ,通常ä¸æ­¢ä¸€ä¸ª
- 文件(无论如何你的å字都应该在æºæ–‡ä»¶çš„顶部)。维护人员æ„味ç€æ‚¨å¸Œæœ›åœ¨å¯¹
- å­ç³»ç»Ÿè¿›è¡Œæ›´æ”¹æ—¶å¾—到询问,并了解缺陷;这æ„味ç€å¯¹æŸéƒ¨åˆ†ä»£ç åšå‡ºæ›´å¤šæ‰¿è¯ºã€‚
+- 如果你认为自己åšäº†ä¸€äº›æœ‰æ„义的事情,å¯ä»¥æŠŠè‡ªå·±æ”¾è¿› ``CREDITS`` ,通常ä¸
+ 止一个文件(无论如何你的å字都应该在æºæ–‡ä»¶çš„顶部)。 ``MAINTAINERS``
+ æ„味ç€æ‚¨å¸Œæœ›åœ¨å¯¹å­ç³»ç»Ÿè¿›è¡Œæ›´æ”¹æ—¶å¾—到询问,并了解缺陷;这æ„味ç€å¯¹æŸéƒ¨åˆ†
+ 代ç åšå‡ºæ›´å¤šæ‰¿è¯ºã€‚
-- 最åŽï¼Œåˆ«å¿˜è®°åŽ»é˜…读 Documentation/process/submitting-patches.rst ,
- 也许还有 Documentation/process/submitting-drivers.rst 。
+- 最åŽï¼Œåˆ«å¿˜è®°åŽ»é˜…读 Documentation/process/submitting-patches.rst。
Kernel 仙女棒
===============
diff --git a/Documentation/translations/zh_CN/locking/index.rst b/Documentation/translations/zh_CN/locking/index.rst
index 700df8a2bb70..f0b10707668d 100644
--- a/Documentation/translations/zh_CN/locking/index.rst
+++ b/Documentation/translations/zh_CN/locking/index.rst
@@ -14,17 +14,18 @@
.. toctree::
:maxdepth: 1
+ mutex-design
+ spinlocks
+
TODOList:
* locktypes
* lockdep-design
* lockstat
* locktorture
- * mutex-design
* rt-mutex-design
* rt-mutex
* seqlock
- * spinlocks
* ww-mutex-design
* preempt-locking
* pi-futex
diff --git a/Documentation/translations/zh_CN/locking/mutex-design.rst b/Documentation/translations/zh_CN/locking/mutex-design.rst
new file mode 100644
index 000000000000..6aad54372a6c
--- /dev/null
+++ b/Documentation/translations/zh_CN/locking/mutex-design.rst
@@ -0,0 +1,145 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/locking/mutex-design.rst
+
+:翻译:
+
+ å”艺舟 Tang Yizhou <tangyeechou@gmail.com>
+
+================
+通用互斥é”å­ç³»ç»Ÿ
+================
+
+:åˆç¨¿:
+
+ Ingo Molnar <mingo@redhat.com>
+
+:æ›´æ–°:
+
+ Davidlohr Bueso <davidlohr@hp.com>
+
+什么是互斥é”?
+--------------
+
+在Linux内核中,互斥é”(mutex)指的是一个特殊的加é”原语,它在共享内存系统上
+强制ä¿è¯åºåˆ—化,而ä¸ä»…仅是指在学术界或类似的ç†è®ºæ•™ç§‘书中出现的通用术语“相互
+排斥â€ã€‚互斥é”是一ç§ç¡çœ é”,它的行为类似于二进制信å·é‡ï¼ˆsemaphores),在
+2006年被引入时[1],作为åŽè€…的替代å“。这ç§æ–°çš„æ•°æ®ç»“æž„æ供了许多优点,包括更
+简å•çš„接å£ï¼Œä»¥åŠåœ¨å½“时更少的代ç é‡ï¼ˆè§ç¼ºé™·ï¼‰ã€‚
+
+[1] https://lwn.net/Articles/164802/
+
+实现
+----
+
+互斥é”由“struct mutexâ€è¡¨ç¤ºï¼Œåœ¨include/linux/mutex.h中定义,并在
+kernel/locking/mutex.c中实现。这些é”使用一个原å­å˜é‡ï¼ˆ->owner)æ¥è·Ÿè¸ª
+它们生命周期内的é”状æ€ã€‚字段owner实际上包å«çš„是指å‘当å‰é”所有者的
+`struct task_struct *` 指针,因此如果无人æŒæœ‰é”,则它的值为空(NULL)。
+由于task_struct的指针至少按L1_CACHE_BYTES对é½ï¼Œä½Žä½ï¼ˆ3)被用æ¥å­˜å‚¨é¢å¤–
+的状æ€ï¼ˆä¾‹å¦‚,等待者列表éžç©ºï¼‰ã€‚在其最基本的形å¼ä¸­ï¼Œå®ƒè¿˜åŒ…括一个等待队列和
+一个确ä¿å¯¹å…¶åºåˆ—化访问的自旋é”。此外,CONFIG_MUTEX_SPIN_ON_OWNER=yçš„
+系统使用一个自旋MCSé”(->osq,译注:MCS是两个人åçš„åˆå¹¶ç¼©å†™ï¼‰ï¼Œåœ¨ä¸‹æ–‡çš„
+(ii)中æ述。
+
+准备获得一把自旋é”时,有三ç§å¯èƒ½ç»è¿‡çš„路径,å–决于é”的状æ€ï¼š
+
+(i) 快速路径:试图通过调用cmpxchg()修改é”的所有者为当å‰ä»»åŠ¡ï¼Œä»¥æ­¤åŽŸå­åŒ–地
+ 获å–é”。这åªåœ¨æ— ç«žäº‰çš„情况下有效(cmpxchg()检查值是å¦ä¸º0,所以3个状æ€
+ 比特必须为0)。如果é”处在竞争状æ€ï¼Œä»£ç è¿›å…¥ä¸‹ä¸€ä¸ªå¯èƒ½çš„路径。
+
+(ii) 中速路径:也就是ä¹è§‚自旋,当é”的所有者正在è¿è¡Œå¹¶ä¸”没有其它优先级更高的
+ 任务(need_resched,需è¦é‡æ–°è°ƒåº¦ï¼‰å‡†å¤‡è¿è¡Œæ—¶ï¼Œå½“å‰ä»»åŠ¡è¯•å›¾è‡ªæ—‹æ¥èŽ·å¾—
+ é”。原ç†æ˜¯ï¼Œå¦‚æžœé”的所有者正在è¿è¡Œï¼Œå®ƒå¾ˆå¯èƒ½ä¸ä¹…就会释放é”。互斥é”自旋体
+ 使用MCSé”排队,这样åªæœ‰ä¸€ä¸ªè‡ªæ—‹ä½“å¯ä»¥ç«žäº‰äº’æ–¥é”。
+
+ MCSé”(由Mellor-Crummeyå’ŒScottæ出)是一个简å•çš„自旋é”,它具有一些
+ ç†æƒ³çš„特性,比如公平,以åŠæ¯ä¸ªCPU在试图获得é”时在一个本地å˜é‡ä¸Šè‡ªæ—‹ã€‚
+ 它é¿å…了常è§çš„“检测-设置â€è‡ªæ—‹é”实现导致的(CPU核间)缓存行回弹
+ (cacheline bouncing)这ç§æ˜‚贵的开销。一个类MCSé”是为实现ç¡çœ é”çš„
+ ä¹è§‚自旋而专门定制的。这ç§å®šåˆ¶MCSé”的一个é‡è¦ç‰¹æ€§æ˜¯ï¼Œå®ƒæœ‰ä¸€ä¸ªé¢å¤–的属性,
+ 当自旋体需è¦é‡æ–°è°ƒåº¦æ—¶ï¼Œå®ƒä»¬èƒ½å¤Ÿé€€å‡ºMCS自旋é”队列。这进一步有助于é¿å…
+ 以下场景:需è¦é‡æ–°è°ƒåº¦çš„MCS自旋体将继续自旋等待自旋体所有者,å³å°†èŽ·å¾—
+ MCSé”æ—¶å´ç›´æŽ¥è¿›å…¥æ…¢é€Ÿè·¯å¾„。
+
+(iii) 慢速路径:最åŽçš„手段,如果ä»ç„¶æ— æ³•èŽ·å¾—é”,该任务会被添加到等待队列中,
+ 休眠直到被解é”路径唤醒。在通常情况下,它以TASK_UNINTERRUPTIBLE状æ€
+ 阻塞。
+
+虽然从形å¼ä¸Šçœ‹ï¼Œå†…核互斥é”是å¯ç¡çœ çš„é”,路径(ii)使它实际上æˆä¸ºæ··åˆç±»åž‹ã€‚通过
+简å•åœ°ä¸ä¸­æ–­ä¸€ä¸ªä»»åŠ¡å¹¶å¿™ç€ç­‰å¾…几个周期,而ä¸æ˜¯ç«‹å³ç¡çœ ï¼Œè¿™ç§é”å·²ç»è¢«è®¤ä¸ºæ˜¾è‘—
+改善一些工作负载的性能。注æ„,这ç§æŠ€æœ¯ä¹Ÿè¢«ç”¨äºŽè¯»å†™ä¿¡å·é‡ï¼ˆrw-semaphores)。
+
+语义
+----
+
+互斥é”å­ç³»ç»Ÿæ£€æŸ¥å¹¶å¼ºåˆ¶æ‰§è¡Œä»¥ä¸‹è§„则:
+
+ - æ¯æ¬¡åªæœ‰ä¸€ä¸ªä»»åŠ¡å¯ä»¥æŒæœ‰è¯¥äº’æ–¥é”。
+ - åªæœ‰é”的所有者å¯ä»¥è§£é”该互斥é”。
+ - ä¸å…许多次解é”。
+ - ä¸å…许递归加é”/解é”。
+ - 互斥é”åªèƒ½é€šè¿‡API进行åˆå§‹åŒ–(è§ä¸‹æ–‡ï¼‰ã€‚
+ - 一个任务ä¸èƒ½åœ¨æŒæœ‰äº’æ–¥é”的情况下退出。
+ - æŒæœ‰é”的内存区域ä¸å¾—被释放。
+ - 被æŒæœ‰çš„é”ä¸èƒ½è¢«é‡æ–°åˆå§‹åŒ–。
+ - 互斥é”ä¸èƒ½ç”¨äºŽç¡¬ä»¶æˆ–软件中断上下文,如å°ä»»åŠ¡ï¼ˆtasklet)和定时器。
+
+当CONFIG DEBUG_MUTEXES被å¯ç”¨æ—¶ï¼Œè¿™äº›è¯­ä¹‰å°†è¢«å®Œå…¨å¼ºåˆ¶æ‰§è¡Œã€‚此外,互斥é”
+调试代ç è¿˜å®žçŽ°äº†ä¸€äº›å…¶å®ƒç‰¹æ€§ï¼Œä½¿é”的调试更容易ã€æ›´å¿«é€Ÿï¼š
+
+ - 当打å°åˆ°è°ƒè¯•è¾“出时,总是使用互斥é”的符å·å称。
+ - 加é”点跟踪,函数å符å·åŒ–查找,系统æŒæœ‰çš„全部é”的列表,打å°å‡ºå®ƒä»¬ã€‚
+ - 所有者跟踪。
+ - 检测自我递归的é”并打å°æ‰€æœ‰ç›¸å…³ä¿¡æ¯ã€‚
+ - 检测多任务环形ä¾èµ–æ­»é”,并打å°æ‰€æœ‰å—å½±å“çš„é”和任务(并且åªé™äºŽè¿™äº›ä»»åŠ¡ï¼‰ã€‚
+
+
+接å£
+----
+é™æ€å®šä¹‰äº’æ–¥é”::
+
+ DEFINE_MUTEX(name);
+
+动æ€åˆå§‹åŒ–互斥é”::
+
+ mutex_init(mutex);
+
+以ä¸å¯ä¸­æ–­æ–¹å¼ï¼ˆuninterruptible)获å–互斥é”::
+
+ void mutex_lock(struct mutex *lock);
+ void mutex_lock_nested(struct mutex *lock, unsigned int subclass);
+ int mutex_trylock(struct mutex *lock);
+
+以å¯ä¸­æ–­æ–¹å¼ï¼ˆinterruptible)获å–互斥é”::
+
+ int mutex_lock_interruptible_nested(struct mutex *lock,
+ unsigned int subclass);
+ int mutex_lock_interruptible(struct mutex *lock);
+
+当原å­å˜é‡å‡ä¸º0时,以å¯ä¸­æ–­æ–¹å¼ï¼ˆinterruptible)获å–互斥é”::
+
+ int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
+
+释放互斥é”::
+
+ void mutex_unlock(struct mutex *lock);
+
+检测是å¦å·²ç»èŽ·å–互斥é”::
+
+ int mutex_is_locked(struct mutex *lock);
+
+缺陷
+----
+
+与它最åˆçš„设计和目的ä¸åŒï¼Œ'struct mutex' 是内核中最大的é”之一。例如:在
+x86-64上它是32字节,而 'struct semaphore' 是24字节,rw_semaphore是
+40字节。更大的结构体大å°æ„味ç€æ›´å¤šçš„CPU缓存和内存å ç”¨ã€‚
+
+
+何时使用互斥é”
+--------------
+
+总是优先选择互斥é”而ä¸æ˜¯ä»»ä½•å…¶å®ƒé”原语,除éžäº’æ–¥é”的严格语义ä¸åˆé€‚,和/或临界区
+阻止é”被共享。
diff --git a/Documentation/translations/zh_CN/loongarch/introduction.rst b/Documentation/translations/zh_CN/loongarch/introduction.rst
index 11686ee0caeb..128878f5bb70 100644
--- a/Documentation/translations/zh_CN/loongarch/introduction.rst
+++ b/Documentation/translations/zh_CN/loongarch/introduction.rst
@@ -190,8 +190,8 @@ I26 Opcode + I26L + I26H
=========== ==========================
Opcode是指令æ“作ç ï¼ŒRjå’ŒRk是æºæ“作数(寄存器),Rd是目标æ“作数(寄存器),Ra是
-4R-typeæ ¼å¼ç‰¹æœ‰çš„附加æ“作数(寄存器)。I8/I12/I16/I21/I26分别是8ä½/12ä½/16ä½/
-21ä½/26ä½çš„ç«‹å³æ•°ã€‚其中较长的21ä½å’Œ26ä½ç«‹å³æ•°åœ¨æŒ‡ä»¤å­—中被分割为高ä½éƒ¨åˆ†ä¸Žä½Žä½
+4R-typeæ ¼å¼ç‰¹æœ‰çš„附加æ“作数(寄存器)。I8/I12/I14/I16/I21/I26分别是8ä½/12ä½/14ä½/
+16ä½/21ä½/26ä½çš„ç«‹å³æ•°ã€‚其中较长的21ä½å’Œ26ä½ç«‹å³æ•°åœ¨æŒ‡ä»¤å­—中被分割为高ä½éƒ¨åˆ†ä¸Žä½Žä½
部分,所以你们在这里的格å¼æ述中能够看到I21L/I21Hå’ŒI26L/I26H这样带åŽç¼€çš„表述。
指令列表
diff --git a/Documentation/translations/zh_CN/vm/active_mm.rst b/Documentation/translations/zh_CN/mm/active_mm.rst
index 366609ea4f37..c2816f523bd7 100644
--- a/Documentation/translations/zh_CN/vm/active_mm.rst
+++ b/Documentation/translations/zh_CN/mm/active_mm.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/vm/active_mm.rst
+:Original: Documentation/mm/active_mm.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/balance.rst b/Documentation/translations/zh_CN/mm/balance.rst
index e98a47ef24a8..6fd79209c307 100644
--- a/Documentation/translations/zh_CN/vm/balance.rst
+++ b/Documentation/translations/zh_CN/mm/balance.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/vm/balance.rst
+:Original: Documentation/mm/balance.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/damon/api.rst b/Documentation/translations/zh_CN/mm/damon/api.rst
index 21143eea4ebe..5593a83c86bc 100644
--- a/Documentation/translations/zh_CN/vm/damon/api.rst
+++ b/Documentation/translations/zh_CN/mm/damon/api.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
-:Original: Documentation/vm/damon/api.rst
+:Original: Documentation/mm/damon/api.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/damon/design.rst b/Documentation/translations/zh_CN/mm/damon/design.rst
index 46128b77c2b3..16e3db34a7dd 100644
--- a/Documentation/translations/zh_CN/vm/damon/design.rst
+++ b/Documentation/translations/zh_CN/mm/damon/design.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
-:Original: Documentation/vm/damon/design.rst
+:Original: Documentation/mm/damon/design.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/damon/faq.rst b/Documentation/translations/zh_CN/mm/damon/faq.rst
index 07b4ac19407d..de4be417494a 100644
--- a/Documentation/translations/zh_CN/vm/damon/faq.rst
+++ b/Documentation/translations/zh_CN/mm/damon/faq.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
-:Original: Documentation/vm/damon/faq.rst
+:Original: Documentation/mm/damon/faq.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/damon/index.rst b/Documentation/translations/zh_CN/mm/damon/index.rst
index 84d36d90c9b0..b03bf307204f 100644
--- a/Documentation/translations/zh_CN/vm/damon/index.rst
+++ b/Documentation/translations/zh_CN/mm/damon/index.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
-:Original: Documentation/vm/damon/index.rst
+:Original: Documentation/mm/damon/index.rst
:翻译:
@@ -14,7 +14,7 @@ DAMON:æ•°æ®è®¿é—®ç›‘视器
==========================
DAMON是Linux内核的一个数æ®è®¿é—®ç›‘控框架å­ç³»ç»Ÿã€‚DAMON的核心机制使其æˆä¸º
-(该核心机制详è§(Documentation/translations/zh_CN/vm/damon/design.rst))
+(该核心机制详è§(Documentation/translations/zh_CN/mm/damon/design.rst))
- *准确度* (监测输出对DRAM级别的内存管ç†è¶³å¤Ÿæœ‰ç”¨ï¼›ä½†å¯èƒ½ä¸é€‚åˆCPU Cache级别),
- *è½»é‡çº§* (监控开销低到å¯ä»¥åœ¨çº¿åº”用),以åŠ
@@ -30,4 +30,3 @@ DAMON是Linux内核的一个数æ®è®¿é—®ç›‘控框架å­ç³»ç»Ÿã€‚DAMON的核心æœ
faq
design
api
-
diff --git a/Documentation/translations/zh_CN/vm/free_page_reporting.rst b/Documentation/translations/zh_CN/mm/free_page_reporting.rst
index 31d6c34b956b..5bfd58014c94 100644
--- a/Documentation/translations/zh_CN/vm/free_page_reporting.rst
+++ b/Documentation/translations/zh_CN/mm/free_page_reporting.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/vm/_free_page_reporting.rst
+:Original: Documentation/mm/free_page_reporting.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/frontswap.rst b/Documentation/translations/zh_CN/mm/frontswap.rst
index 3eb07870e2ef..434975390b48 100644
--- a/Documentation/translations/zh_CN/vm/frontswap.rst
+++ b/Documentation/translations/zh_CN/mm/frontswap.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/_free_page_reporting.rst
+:Original: Documentation/mm/frontswap.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/mm/highmem.rst b/Documentation/translations/zh_CN/mm/highmem.rst
new file mode 100644
index 000000000000..f74800a6d9a7
--- /dev/null
+++ b/Documentation/translations/zh_CN/mm/highmem.rst
@@ -0,0 +1,137 @@
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/mm/highmem.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+==========
+高内存处ç†
+==========
+
+作者: Peter Zijlstra <a.p.zijlstra@chello.nl>
+
+.. contents:: :local:
+
+高内存是什么?
+==============
+
+当物ç†å†…存的大å°æŽ¥è¿‘或超过虚拟内存的最大大å°æ—¶ï¼Œå°±ä¼šä½¿ç”¨é«˜å†…存(highmem)。在这一点上,内
+æ ¸ä¸å¯èƒ½åœ¨ä»»ä½•æ—¶å€™éƒ½ä¿æŒæ‰€æœ‰å¯ç”¨çš„物ç†å†…存的映射。这æ„味ç€å†…核需è¦å¼€å§‹ä½¿ç”¨å®ƒæƒ³è®¿é—®çš„物ç†å†…
+存的临时映射。
+
+没有被永久映射覆盖的那部分(物ç†ï¼‰å†…存就是我们所说的 "高内存"。对于这个边界的确切ä½ç½®ï¼Œæœ‰
+å„ç§æž¶æž„上的é™åˆ¶ã€‚
+
+例如,在i386架构中,我们选择将内核映射到æ¯ä¸ªè¿›ç¨‹çš„虚拟空间,这样我们就ä¸å¿…为内核的进入/退
+出付出全部的TLB作废代价。这æ„味ç€å¯ç”¨çš„虚拟内存空间(i386上为4GiB)必须在用户和内核空间之
+间进行划分。
+
+使用这ç§æ–¹æ³•çš„架构的传统分é…æ–¹å¼æ˜¯3:1,3GiB用于用户空间,顶部的1GiB用于内核空间。::
+
+ +--------+ 0xffffffff
+ | Kernel |
+ +--------+ 0xc0000000
+ | |
+ | User |
+ | |
+ +--------+ 0x00000000
+
+è¿™æ„味ç€å†…核在任何时候最多å¯ä»¥æ˜ å°„1GiB的物ç†å†…存,但是由于我们需è¦è™šæ‹Ÿåœ°å€ç©ºé—´æ¥åšå…¶ä»–事
+情--包括访问其余物ç†å†…存的临时映射--实际的直接映射通常会更少(通常在~896MiBå·¦å³ï¼‰ã€‚
+
+其他有mm上下文标签的TLB的架构å¯ä»¥æœ‰ç‹¬ç«‹çš„内核和用户映射。然而,一些硬件(如一些ARM)在使
+用mm上下文标签时,其虚拟空间有é™ã€‚
+
+
+临时虚拟映射
+============
+
+内核包å«å‡ ç§åˆ›å»ºä¸´æ—¶æ˜ å°„的方法。下é¢çš„列表按照使用的优先顺åºæ˜¾ç¤ºäº†å®ƒä»¬ã€‚
+
+* kmap_local_page()。这个函数是用æ¥è¦æ±‚短期映射的。它å¯ä»¥ä»Žä»»ä½•ä¸Šä¸‹æ–‡ï¼ˆåŒ…括中断)中调用,
+ 但是映射åªèƒ½åœ¨èŽ·å–它们的上下文中使用。
+
+ 在å¯è¡Œçš„情况下,这个函数应该比其他所有的函数优先使用。
+
+ 这些映射是线程本地和CPU本地的,这æ„味ç€æ˜ å°„åªèƒ½ä»Žè¿™ä¸ªçº¿ç¨‹ä¸­è®¿é—®ï¼Œå¹¶ä¸”当映射处于活动状
+ æ€æ—¶ï¼Œè¯¥çº¿ç¨‹ä¸ŽCPU绑定。å³ä½¿çº¿ç¨‹è¢«æŠ¢å äº†ï¼ˆå› ä¸ºæŠ¢å æ°¸è¿œä¸ä¼šè¢«å‡½æ•°ç¦ç”¨ï¼‰ï¼ŒCPU也ä¸èƒ½é€šè¿‡
+ CPU-hotplug从系统中拔出,直到映射被处ç†æŽ‰ã€‚
+
+ 在本地的kmap区域中采å–pagefaults是有效的,除éžèŽ·å–本地映射的上下文由于其他原因ä¸å…许
+ 这样åšã€‚
+
+ kmap_local_page()总是返回一个有效的虚拟地å€ï¼Œå¹¶ä¸”å‡å®škunmap_local()ä¸ä¼šå¤±è´¥ã€‚
+
+ 嵌套kmap_local_page()å’Œkmap_atomic()映射在一定程度上是å…许的(最多到KMAP_TYPE_NR),
+ 但是它们的调用必须严格排åºï¼Œå› ä¸ºæ˜ å°„的实现是基于堆栈的。关于如何管ç†åµŒå¥—映射的细节,
+ 请å‚è§kmap_local_page() kdocs(包å«åœ¨ "函数 "部分)。
+
+* kmap_atomic(). è¿™å…许对å•ä¸ªé¡µé¢è¿›è¡Œéžå¸¸çŸ­çš„时间映射。由于映射被é™åˆ¶åœ¨å‘布它的CPU上,
+ 它表现得很好,但å‘布的任务因此被è¦æ±‚留在该CPU上直到它完æˆï¼Œä»¥å…其他任务å–代它的映射。
+
+ kmap_atomic()也å¯ä»¥è¢«ä¸­æ–­ä¸Šä¸‹æ–‡ä½¿ç”¨ï¼Œå› ä¸ºå®ƒä¸ç¡çœ ï¼Œè°ƒç”¨è€…也å¯èƒ½åœ¨è°ƒç”¨kunmap_atomic()
+ åŽæ‰ç¡çœ ã€‚
+
+ 内核中对kmap_atomic()çš„æ¯æ¬¡è°ƒç”¨éƒ½ä¼šåˆ›å»ºä¸€ä¸ªä¸å¯æŠ¢å çš„段,并ç¦ç”¨ç¼ºé¡µå¼‚常。这å¯èƒ½æ˜¯
+ 未预期延迟的æ¥æºä¹‹ä¸€ã€‚因此用户应该选择kmap_local_page()而ä¸æ˜¯kmap_atomic()。
+
+ å‡è®¾k[un]map_atomic()ä¸ä¼šå¤±è´¥ã€‚
+
+* kmap()。这应该被用æ¥å¯¹å•ä¸ªé¡µé¢è¿›è¡ŒçŸ­æ—¶é—´çš„映射,对抢å æˆ–è¿ç§»æ²¡æœ‰é™åˆ¶ã€‚它会带æ¥å¼€é”€ï¼Œ
+ 因为映射空间是å—é™åˆ¶çš„,并且å—到全局é”çš„ä¿æŠ¤ï¼Œä»¥å®žçŽ°åŒæ­¥ã€‚当ä¸å†éœ€è¦æ˜ å°„时,必须用
+ kunmap()释放该页被映射的地å€ã€‚
+
+ 映射å˜åŒ–必须广播到所有CPU(核)上,kmap()还需è¦åœ¨kmap的池被回绕(TLB项用光了,需è¦ä»Žç¬¬
+ 一项å¤ç”¨ï¼‰æ—¶è¿›è¡Œå…¨å±€TLB无效化,当映射空间被完全利用时,它å¯èƒ½ä¼šé˜»å¡žï¼Œç›´åˆ°æœ‰ä¸€ä¸ªå¯ç”¨çš„
+ 槽出现。因此,kmap()åªèƒ½ä»Žå¯æŠ¢å çš„上下文中调用。
+
+ 如果一个映射必须æŒç»­ç›¸å¯¹è¾ƒé•¿çš„时间,上述所有的工作都是必è¦çš„,但是内核中大部分的
+ 高内存映射都是短暂的,而且åªåœ¨ä¸€ä¸ªåœ°æ–¹ä½¿ç”¨ã€‚è¿™æ„味ç€åœ¨è¿™ç§æƒ…况下,kmap()çš„æˆæœ¬å¤§
+ 多被浪费了。kmap()并ä¸æ˜¯ä¸ºé•¿æœŸæ˜ å°„而设计的,但是它已ç»æœç€è¿™ä¸ªæ–¹å‘å‘展了,在较新
+ 的代ç ä¸­å¼ºçƒˆä¸é¼“励使用它,å‰é¢çš„函数集应该是首选。
+
+ 在64ä½ç³»ç»Ÿä¸­ï¼Œè°ƒç”¨kmap_local_page()ã€kmap_atomic()å’Œkmap()没有实际作用,因为64ä½
+ 地å€ç©ºé—´è¶³ä»¥æ°¸ä¹…映射所有物ç†å†…存页é¢ã€‚
+
+* vmap()。这å¯ä»¥ç”¨æ¥å°†å¤šä¸ªç‰©ç†é¡µé•¿æœŸæ˜ å°„到一个连续的虚拟空间。它需è¦å…¨å±€åŒæ­¥æ¥è§£é™¤
+ 映射。
+
+临时映射的æˆæœ¬
+==============
+
+创建临时映射的代价å¯èƒ½ç›¸å½“高。体系架构必须æ“作内核的页表ã€æ•°æ®TLBå’Œ/或MMU的寄存器。
+
+如果CONFIG_HIGHMEM没有被设置,那么内核会å°è¯•ç”¨ä¸€ç‚¹è®¡ç®—æ¥åˆ›å»ºæ˜ å°„,将页é¢ç»“构地å€è½¬æ¢æˆ
+指å‘页é¢å†…容的指针,而ä¸æ˜¯åŽ»æ£é¼“映射。在这ç§æƒ…况下,解映射æ“作å¯èƒ½æ˜¯ä¸€ä¸ªç©ºæ“作。
+
+如果CONFIG_MMU没有被设置,那么就ä¸å¯èƒ½æœ‰ä¸´æ—¶æ˜ å°„和高内存。在这ç§æƒ…况下,也将使用计算方法。
+
+
+i386 PAE
+========
+
+在æŸäº›æƒ…况下,i386 架构将å…许你在 32 ä½æœºå™¨ä¸Šå®‰è£…多达 64GiB 的内存。但这有一些åŽæžœ:
+
+* Linux需è¦ä¸ºç³»ç»Ÿä¸­çš„æ¯ä¸ªé¡µé¢å»ºç«‹ä¸€ä¸ªé¡µå¸§ç»“构,而且页帧需è¦é©»åœ¨æ°¸ä¹…映射中,这æ„味ç€ï¼š
+
+* 你最多å¯ä»¥æœ‰896M/sizeof(struct page)页帧;由于页结构体是32字节的,所以最终会有
+ 112G的页;然而,内核需è¦åœ¨å†…存中存储更多的页帧......
+
+* PAE使你的页表å˜å¤§--这使系统å˜æ…¢ï¼Œå› ä¸ºæ›´å¤šçš„æ•°æ®éœ€è¦åœ¨TLB填充等方é¢è¢«è®¿é—®ã€‚一个好处
+ 是,PAE有更多的PTEä½ï¼Œå¯ä»¥æä¾›åƒNXå’ŒPAT这样的高级功能。
+
+一般的建议是,你ä¸è¦åœ¨32ä½æœºå™¨ä¸Šä½¿ç”¨è¶…过8GiB的空间--尽管更多的空间å¯èƒ½å¯¹ä½ å’Œä½ çš„工作
+é‡æœ‰ç”¨ï¼Œä½†ä½ å‡ ä¹Žæ˜¯é ä½ è‡ªå·±--ä¸è¦æŒ‡æœ›å†…核开å‘者真的会很关心事情的进展情况。
+
+函数
+====
+
+该API在以下内核代ç ä¸­:
+
+include/linux/highmem.h
+
+include/linux/highmem-internal.h
diff --git a/Documentation/translations/zh_CN/vm/hmm.rst b/Documentation/translations/zh_CN/mm/hmm.rst
index 2379df95aa58..5024a8a15516 100644
--- a/Documentation/translations/zh_CN/vm/hmm.rst
+++ b/Documentation/translations/zh_CN/mm/hmm.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/vm/hmm.rst
+:Original: Documentation/mm/hmm.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/hugetlbfs_reserv.rst b/Documentation/translations/zh_CN/mm/hugetlbfs_reserv.rst
index c6d471ce2131..752e5696cd47 100644
--- a/Documentation/translations/zh_CN/vm/hugetlbfs_reserv.rst
+++ b/Documentation/translations/zh_CN/mm/hugetlbfs_reserv.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/vm/hugetlbfs_reserv.rst
+:Original: Documentation/mm/hugetlbfs_reserv.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/hwpoison.rst b/Documentation/translations/zh_CN/mm/hwpoison.rst
index c6e1e7bdb05b..310862edc937 100644
--- a/Documentation/translations/zh_CN/vm/hwpoison.rst
+++ b/Documentation/translations/zh_CN/mm/hwpoison.rst
@@ -1,5 +1,5 @@
-:Original: Documentation/vm/hwpoison.rst
+:Original: Documentation/mm/hwpoison.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/mm/index.rst b/Documentation/translations/zh_CN/mm/index.rst
new file mode 100644
index 000000000000..2f53e37b8049
--- /dev/null
+++ b/Documentation/translations/zh_CN/mm/index.rst
@@ -0,0 +1,69 @@
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/mm/index.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+=================
+Linux内存管ç†æ–‡æ¡£
+=================
+
+这是一份关于了解Linux的内存管ç†å­ç³»ç»Ÿçš„指å—。如果你正在寻找关于简å•åˆ†é…内存的
+建议,请å‚阅内存分é…指å—
+(Documentation/translations/zh_CN/core-api/memory-allocation.rst)。
+关于控制和调整的指å—,请看管ç†æŒ‡å—
+(Documentation/translations/zh_CN/admin-guide/mm/index.rst)。
+
+
+.. toctree::
+ :maxdepth: 1
+
+ highmem
+
+该处剩余文档待原始文档有内容åŽç¿»è¯‘。
+
+
+é—留文档
+========
+
+这是一个关于Linux内存管ç†ï¼ˆMM)å­ç³»ç»Ÿå†…部的旧文档的集åˆï¼Œå…¶ä¸­æœ‰ä¸åŒå±‚次的细节,
+包括注释和邮件列表的回å¤ï¼Œç”¨äºŽé˜è¿°æ•°æ®ç»“构和算法的æ述。它应该被很好地整åˆåˆ°ä¸Šè¿°
+结构化的文档中,如果它已ç»å®Œæˆäº†å®ƒçš„使命,å¯ä»¥åˆ é™¤ã€‚
+
+.. toctree::
+ :maxdepth: 1
+
+ active_mm
+ balance
+ damon/index
+ free_page_reporting
+ ksm
+ frontswap
+ hmm
+ hwpoison
+ hugetlbfs_reserv
+ memory-model
+ mmu_notifier
+ numa
+ overcommit-accounting
+ page_frags
+ page_migration
+ page_owner
+ page_table_check
+ remap_file_pages
+ split_page_table_lock
+ vmalloced-kernel-stacks
+ z3fold
+ zsmalloc
+
+TODOLIST:
+* arch_pgtable_helpers
+* free_page_reporting
+* hugetlbfs_reserv
+* slub
+* transhuge
+* unevictable-lru
diff --git a/Documentation/translations/zh_CN/vm/ksm.rst b/Documentation/translations/zh_CN/mm/ksm.rst
index 83b0c73984da..d1f82e857ad7 100644
--- a/Documentation/translations/zh_CN/vm/ksm.rst
+++ b/Documentation/translations/zh_CN/mm/ksm.rst
@@ -1,6 +1,6 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: Documentation/vm/ksm.rst
+:Original: Documentation/mm/ksm.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/memory-model.rst b/Documentation/translations/zh_CN/mm/memory-model.rst
index 013e30c88d72..77ec149a970c 100644
--- a/Documentation/translations/zh_CN/vm/memory-model.rst
+++ b/Documentation/translations/zh_CN/mm/memory-model.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
-:Original: Documentation/vm/memory-model.rst
+:Original: Documentation/mm/memory-model.rst
:翻译:
@@ -129,7 +129,7 @@ ZONE_DEVICE
* pmem: 通过DAX映射将平å°æŒä¹…性内存作为直接I/O目标使用。
* hmm: 用 `->page_fault()` 和 `->page_free()` 事件回调扩展 `ZONE_DEVICE` ,
- 以å…许设备驱动程åºå调与设备内存相关的内存管ç†äº‹ä»¶ï¼Œé€šå¸¸æ˜¯GPU内存。å‚è§/vm/hmm.rst。
+ 以å…许设备驱动程åºå调与设备内存相关的内存管ç†äº‹ä»¶ï¼Œé€šå¸¸æ˜¯GPU内存。å‚è§Documentation/mm/hmm.rst。
* p2pdma: 创建 `struct page` 对象,å…许PCI/E拓扑结构中的peer设备å调它们之间的
直接DMAæ“作,å³ç»•è¿‡ä¸»æœºå†…存。
diff --git a/Documentation/translations/zh_CN/vm/mmu_notifier.rst b/Documentation/translations/zh_CN/mm/mmu_notifier.rst
index b29a37b33628..ce3664d1a410 100644
--- a/Documentation/translations/zh_CN/vm/mmu_notifier.rst
+++ b/Documentation/translations/zh_CN/mm/mmu_notifier.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/mmu_notifier.rst
+:Original: Documentation/mm/mmu_notifier.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/numa.rst b/Documentation/translations/zh_CN/mm/numa.rst
index 6af412b924ad..b15cfeeb6dfb 100644
--- a/Documentation/translations/zh_CN/vm/numa.rst
+++ b/Documentation/translations/zh_CN/mm/numa.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/numa.rst
+:Original: Documentation/mm/numa.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/overcommit-accounting.rst b/Documentation/translations/zh_CN/mm/overcommit-accounting.rst
index 8765cb118f24..d8452d8b7fbb 100644
--- a/Documentation/translations/zh_CN/vm/overcommit-accounting.rst
+++ b/Documentation/translations/zh_CN/mm/overcommit-accounting.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/overcommit-accounting.rst
+:Original: Documentation/mm/overcommit-accounting.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/page_frags.rst b/Documentation/translations/zh_CN/mm/page_frags.rst
index ad27fed33634..20bd3fafdc8c 100644
--- a/Documentation/translations/zh_CN/vm/page_frags.rst
+++ b/Documentation/translations/zh_CN/mm/page_frags.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/page_frag.rst
+:Original: Documentation/mm/page_frags.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/mm/page_migration.rst b/Documentation/translations/zh_CN/mm/page_migration.rst
new file mode 100644
index 000000000000..076081dc1635
--- /dev/null
+++ b/Documentation/translations/zh_CN/mm/page_migration.rst
@@ -0,0 +1,228 @@
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/mm/page_migration.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+========
+页é¢è¿ç§»
+========
+
+页é¢è¿ç§»å…许在进程è¿è¡Œæ—¶åœ¨NUMA系统的节点之间移动页é¢çš„物ç†ä½ç½®ã€‚è¿™æ„味ç€è¿›ç¨‹æ‰€çœ‹åˆ°çš„虚拟地
+å€å¹¶æ²¡æœ‰æ”¹å˜ã€‚然而,系统会é‡æ–°å®‰æŽ’这些页é¢çš„物ç†ä½ç½®ã€‚
+
+也å¯ä»¥å‚è§ :ref: `<å¼‚æž„å†…å­˜ç®¡ç† (HMM)>` 以了解将页é¢è¿ç§»åˆ°è®¾å¤‡ç§æœ‰å†…存或从设备ç§æœ‰å†…存中è¿ç§»ã€‚
+
+页é¢è¿ç§»çš„主è¦ç›®çš„是通过将页é¢ç§»åˆ°è®¿é—®è¯¥å†…存的进程所è¿è¡Œçš„处ç†å™¨é™„è¿‘æ¥å‡å°‘内存访问的延迟。
+
+页é¢è¿ç§»å…许进程通过MF_MOVEå’ŒMF_MOVE_ALL选项手动é‡æ–°å®šä½å…¶é¡µé¢æ‰€åœ¨çš„节点,åŒæ—¶é€šè¿‡
+mbind()设置一个新的内存策略。一个进程的页é¢ä¹Ÿå¯ä»¥é€šè¿‡sys_migrate_pages()函数调用从å¦
+一个进程é‡æ–°å®šä½ã€‚migrate_pages()函数调用接收两组节点,并将一个进程ä½äºŽæ—§èŠ‚点上的页é¢ç§»
+动到目标节点上。页é¢è¿ç§»åŠŸèƒ½ç”±Andi Kleençš„numactl包æä¾›(需è¦0.9.3以上的版本,其仓库
+地å€https://github.com/numactl/numactl.git)。numactlæ供了libnuma,它为页é¢è¿ç§»
+æ供了与其他NUMA功能类似的接å£ã€‚执行 cat ``/proc/<pid>/numa_maps`` å…许轻æ¾æŸ¥çœ‹è¿›
+程的页é¢ä½ç½®ã€‚å‚è§proc(5)手册中的numa_maps文档。
+
+如果调度程åºå°†ä¸€ä¸ªè¿›ç¨‹é‡æ–°å®‰ç½®åˆ°ä¸€ä¸ªé¥è¿œçš„节点上的处ç†å™¨ï¼Œæ‰‹åŠ¨è¿ç§»æ˜¯å¾ˆæœ‰ç”¨çš„。批é‡è°ƒåº¦ç¨‹åº
+或管ç†å‘˜å¯ä»¥æ£€æµ‹åˆ°è¿™ç§æƒ…况,并将进程的页é¢ç§»åˆ°æ–°å¤„ç†å™¨é™„近。内核本身åªæ供手动的页è¿ç§»æ”¯æŒã€‚
+自动的页é¢è¿ç§»å¯ä»¥é€šè¿‡ç”¨æˆ·ç©ºé—´çš„进程移动页é¢æ¥å®žçŽ°ã€‚一个特殊的函数调用 "move_pages" å…许
+在一个进程中移动å•ä¸ªé¡µé¢ã€‚例如,NUMA分æžå™¨å¯ä»¥èŽ·å¾—一个显示频ç¹çš„节点外访问的日志,并å¯ä»¥ä½¿
+用这个结果将页é¢ç§»åŠ¨åˆ°æ›´æœ‰åˆ©çš„ä½ç½®ã€‚
+
+较大型的设备通常使用cpusets将系统分割æˆè‹¥å¹²ä¸ªèŠ‚点。Paul Jackson为cpusetsé…备了当任务被
+转移到å¦ä¸€ä¸ªcpuset时移动页é¢çš„能力(è§:ref:`CPUSETS <cpusets>`)。Cpusetså…许进程定
+ä½çš„自动化。如果一个任务被移到一个新的cpuset上,那么它的所有页é¢ä¹Ÿä¼šéšä¹‹ç§»åŠ¨ï¼Œè¿™æ ·è¿›ç¨‹çš„
+性能就ä¸ä¼šæ€¥å‰§ä¸‹é™ã€‚如果cpusetå…许的内存节点å‘生å˜åŒ–,cpuset中的进程页也会被移动。
+
+页é¢è¿ç§»å…许为所有è¿ç§»æŠ€æœ¯ä¿ç•™ä¸€ç»„节点中页é¢çš„相对ä½ç½®ï¼Œè¿™å°†ä¿ç•™ç”Ÿæˆçš„特定内存分é…模å¼å³ä½¿
+进程已被è¿ç§»ã€‚为了ä¿ç•™å†…存延迟,这一点是必è¦çš„。è¿ç§»åŽçš„进程将以类似的性能è¿è¡Œã€‚
+
+页é¢è¿ç§»åˆ†å‡ ä¸ªæ­¥éª¤è¿›è¡Œã€‚首先为那些试图从内核中使用migrate_pages()的进程åšä¸€ä¸ªé«˜å±‚次的
+æ述(对于用户空间的使用,å¯ä»¥å‚考上é¢æ到的Andi Kleençš„numactl包),然åŽå¯¹ä½Žæ°´å¹³çš„细
+节工作åšä¸€ä¸ªä½Žæ°´å¹³æ述。
+
+在内核中使用 migrate_pages()
+============================
+
+1. 从LRU中移除页é¢ã€‚
+
+ è¦è¿ç§»çš„页é¢åˆ—表是通过扫æ页é¢å¹¶æŠŠå®ƒä»¬ç§»åˆ°åˆ—表中æ¥ç”Ÿæˆçš„。这是通过调用 isolate_lru_page()
+ æ¥å®Œæˆçš„。调用isolate_lru_page()增加了对该页的引用,这样在页é¢è¿ç§»å‘生时它就ä¸ä¼š
+ 消失。它还å¯ä»¥é˜²æ­¢äº¤æ¢å™¨æˆ–其他扫æ器é‡åˆ°è¯¥é¡µã€‚
+
+
+2. 我们需è¦æœ‰ä¸€ä¸ªnew_page_t类型的函数,å¯ä»¥ä¼ é€’ç»™migrate_pages()。这个函数应该计算
+ 出如何在给定的旧页é¢ä¸­åˆ†é…正确的新页é¢ã€‚
+
+3. migrate_pages()函数被调用,它试图进行è¿ç§»ã€‚它将调用该函数为æ¯ä¸ªè¢«è€ƒè™‘è¿ç§»çš„页é¢åˆ†
+ é…新的页é¢ã€‚
+
+migrate_pages()如何工作
+=======================
+
+migrate_pages()对它的页é¢åˆ—表进行了多次处ç†ã€‚如果当时对一个页é¢çš„所有引用都å¯ä»¥è¢«ç§»é™¤ï¼Œ
+那么这个页é¢å°±ä¼šè¢«ç§»åŠ¨ã€‚该页已ç»é€šè¿‡isolate_lru_page()从LRU中移除,并且refcount被
+增加,以便在页é¢è¿ç§»å‘生时ä¸é‡Šæ”¾è¯¥é¡µã€‚
+
+步骤:
+
+1. é”定è¦è¿ç§»çš„页é¢ã€‚
+
+2. ç¡®ä¿å›žå†™å·²ç»å®Œæˆã€‚
+
+3. é”定我们è¦è¿ç§»åˆ°çš„新页é¢ã€‚é”定它是为了在è¿ç§»è¿‡ç¨‹ä¸­ç«‹å³é˜»æ­¢å¯¹è¿™ä¸ªï¼ˆå°šæœªæ›´æ–°çš„)页é¢çš„
+ 访问。
+
+4. 所有对该页的页表引用都被转æ¢ä¸ºè¿ç§»æ¡ç›®ã€‚这就å‡å°‘了一个页é¢çš„mapcount。如果产生的
+ mapcountä¸æ˜¯é›¶ï¼Œé‚£ä¹ˆæˆ‘们就ä¸è¿ç§»è¯¥é¡µã€‚所有试图访问该页的用户空间进程现在将等待页
+ é¢é”或者等待è¿ç§»é¡µè¡¨é¡¹è¢«ç§»é™¤ã€‚
+
+5. i_pagesçš„é”被æŒæœ‰ã€‚这将导致所有试图通过映射访问该页的进程在自旋é”上阻塞。
+
+6. 检查该页的Refcount,如果还有引用,我们就退出。å¦åˆ™ï¼Œæˆ‘们知é“我们是唯一引用这个页
+ é¢çš„人。
+
+7. 检查基数树,如果它ä¸åŒ…å«æŒ‡å‘这个页é¢çš„指针,那么我们就退出,因为其他人修改了基数树。
+
+8. 新的页é¢è¦ç”¨æ—§çš„页é¢çš„一些设置进行预处ç†ï¼Œè¿™æ ·è®¿é—®æ–°çš„页é¢å°±ä¼šå‘现一个具有正确设置
+ 的页é¢ã€‚
+
+9. 基数树被改å˜ä»¥æŒ‡å‘新的页é¢ã€‚
+
+10. 旧页的引用计数被删除,因为地å€ç©ºé—´çš„引用已ç»æ¶ˆå¤±ã€‚对新页的引用被建立,因为新页被
+ 地å€ç©ºé—´å¼•ç”¨ã€‚
+
+11. i_pagesé”被放弃。这样一æ¥ï¼Œåœ¨æ˜ å°„中的查找åˆå˜å¾—å¯èƒ½äº†ã€‚进程将从在é”上自旋到在
+ 被é”的新页上ç¡çœ ã€‚
+
+12. 页é¢å†…容被å¤åˆ¶åˆ°æ–°çš„页é¢ä¸Šã€‚
+
+13. 剩余的页é¢æ ‡å¿—被å¤åˆ¶åˆ°æ–°çš„页é¢ä¸Šã€‚
+
+14. 旧的页é¢æ ‡å¿—被清除,以表明该页é¢ä¸å†æ供任何信æ¯ã€‚
+
+15. 新页é¢ä¸Šçš„回写队列被触å‘了。
+
+16. 如果è¿ç§»æ¡ç›®è¢«æ’入到页表中,那么就用真正的ptes替æ¢å®ƒä»¬ã€‚这样åšå°†ä½¿é‚£äº›å°šæœªç­‰å¾…页
+ é”的用户空间进程能够访问。
+
+17. 页é¢é”从新旧页é¢ä¸Šè¢«æ’¤é”€ã€‚等待页é”的进程将é‡åšä»–们的缺页异常,并将到达新的页é¢ã€‚
+
+18. 新的页é¢è¢«ç§»åˆ°LRU中,å¯ä»¥è¢«äº¤æ¢å™¨ç­‰å†æ¬¡æ‰«æ。
+
+éžLRU页é¢è¿ç§»
+=============
+
+尽管è¿ç§»æœ€åˆçš„目的是为了å‡å°‘NUMA的内存访问延迟,但压缩也使用è¿ç§»æ¥åˆ›å»ºé«˜é˜¶é¡µé¢ã€‚
+
+ç›®å‰å®žçŽ°çš„问题是,它被设计为åªè¿ç§»*LRU*页。然而,有一些潜在的éžLRU页é¢å¯ä»¥åœ¨é©±åŠ¨ä¸­
+被è¿ç§»ï¼Œä¾‹å¦‚,zsmalloc,virtio-balloon页é¢ã€‚
+
+对于virtio-balloon页é¢ï¼Œè¿ç§»ä»£ç è·¯å¾„çš„æŸäº›éƒ¨åˆ†å·²ç»è¢«é’©ä½ï¼Œå¹¶æ·»åŠ äº†virtio-balloon
+的特定函数æ¥æ‹¦æˆªè¿ç§»é€»è¾‘。这对一个驱动æ¥è¯´å¤ªç‰¹æ®Šäº†ï¼Œæ‰€ä»¥å…¶ä»–想让自己的页é¢å¯ç§»åŠ¨çš„驱
+动就必须在è¿ç§»è·¯å¾„中添加自己的特定钩å­ã€‚
+
+为了克æœè¿™ä¸ªé—®é¢˜ï¼ŒVM支æŒéžLRU页é¢è¿ç§»ï¼Œå®ƒä¸ºéžLRUå¯ç§»åŠ¨é¡µé¢æ供了通用函数,而在è¿ç§»
+路径中没有特定的驱动程åºé’©å­ã€‚
+
+如果一个驱动程åºæƒ³è®©å®ƒçš„页é¢å¯ç§»åŠ¨ï¼Œå®ƒåº”该定义三个函数,这些函数是
+struct address_space_operations的函数指针。
+
+1. ``bool (*isolate_page) (struct page *page, isolate_mode_t mode);``
+
+ VM对驱动的isolate_page()函数的期望是,如果驱动æˆåŠŸéš”离了该页,则返回*true*。
+ 返回trueåŽï¼ŒVM会将该页标记为PG_isolated,这样多个CPU的并å‘隔离就会跳过该
+ 页进行隔离。如果驱动程åºä¸èƒ½éš”离该页,它应该返回*false*。
+
+ 一旦页é¢è¢«æˆåŠŸéš”离,VM就会使用page.lru字段,因此驱动程åºä¸åº”期望ä¿ç•™è¿™äº›å­—段的值。
+
+2. ``int (*migratepage) (struct address_space *mapping,``
+| ``struct page *newpage, struct page *oldpage, enum migrate_mode);``
+
+ 隔离åŽï¼Œè™šæ‹Ÿæœºç”¨éš”离的页é¢è°ƒç”¨é©±åŠ¨çš„migratepage()。migratepage()的功能是将旧页
+ 的内容移动到新页,并设置struct page newpage的字段。请记ä½ï¼Œå¦‚果你æˆåŠŸè¿ç§»äº†æ—§é¡µ
+ 并返回MIGRATEPAGE_SUCCESS,你应该通过page_lock下的__ClearPageMovable()å‘虚
+ 拟机表明旧页ä¸å†å¯ç§»åŠ¨ã€‚如果驱动暂时ä¸èƒ½è¿ç§»è¯¥é¡µï¼Œé©±åŠ¨å¯ä»¥è¿”回-EAGAIN。在-EAGAIN
+ 时,VM会在短时间内é‡è¯•é¡µé¢è¿ç§»ï¼Œå› ä¸ºVMå°†-EAGAINç†è§£ä¸º "临时è¿ç§»å¤±è´¥"。在返回除
+ -EAGAIN以外的任何错误时,VM将放弃页é¢è¿ç§»è€Œä¸é‡è¯•ã€‚
+
+ 在migratepage()函数中,驱动程åºä¸åº”该接触page.lru字段。
+
+3. ``void (*putback_page)(struct page *);``
+
+ 如果在隔离页上è¿ç§»å¤±è´¥ï¼ŒVM应该将隔离页返回给驱动,因此VM用隔离页调用驱动的
+ putback_page()。在这个函数中,驱动应该把隔离页放回自己的数æ®ç»“构中。
+
+éžLRUå¯ç§»åŠ¨é¡µæ ‡å¿—
+
+ 有两个页é¢æ ‡å¿—用于支æŒéžLRUå¯ç§»åŠ¨é¡µé¢ã€‚
+
+ * PG_movable
+
+ 驱动应该使用下é¢çš„函数æ¥ä½¿é¡µé¢åœ¨page_lock下å¯ç§»åŠ¨ã€‚::
+
+ void __SetPageMovable(struct page *page, struct address_space *mapping)
+
+ 它需è¦address_spaceçš„å‚æ•°æ¥æ³¨å†Œå°†è¢«VM调用的migration family函数。确切地说,
+ PG_movableä¸æ˜¯struct page的一个真正的标志。相å,VMå¤ç”¨äº†page->mapping的低
+ ä½æ¥è¡¨ç¤ºå®ƒ::
+
+ #define PAGE_MAPPING_MOVABLE 0x2
+ page->mapping = page->mapping | PAGE_MAPPING_MOVABLE;
+
+ 所以驱动ä¸åº”该直接访问page->mapping。相å,驱动应该使用page_mapping(),它å¯
+ 以在页é¢é”下å±è”½æŽ‰page->mapping的低2ä½ï¼Œä»Žè€ŒèŽ·å¾—正确的struct address_space。
+
+ 对于éžLRUå¯ç§»åŠ¨é¡µé¢çš„测试,VM支æŒ__PageMovable()函数。然而,它并ä¸èƒ½ä¿è¯è¯†åˆ«
+ éžLRUå¯ç§»åŠ¨é¡µé¢ï¼Œå› ä¸ºpage->mapping字段与struct page中的其他å˜é‡æ˜¯ç»Ÿä¸€çš„。如
+ 果驱动程åºåœ¨è¢«è™šæ‹Ÿæœºéš”离åŽé‡Šæ”¾äº†é¡µé¢ï¼Œå°½ç®¡page->mapping设置了PAGE_MAPPING_MOVABLE,
+ 但它并没有一个稳定的值(看看__ClearPageMovable)。但是__PageMovable()在页
+ é¢è¢«éš”离åŽï¼Œæ— è®ºé¡µé¢æ˜¯LRU还是éžLRUå¯ç§»åŠ¨çš„,调用它开销都很低,因为LRU页é¢åœ¨
+ page->mapping中ä¸å¯èƒ½æœ‰PAGE_MAPPING_MOVABLE设置。在用pfn扫æ中的lock_page()
+ 进行更大开销的检查æ¥é€‰æ‹©å—害者之å‰ï¼Œå®ƒä¹Ÿå¾ˆé€‚åˆåªæ˜¯çž¥ä¸€çœ¼æ¥æµ‹è¯•éžLRUå¯ç§»åŠ¨çš„页é¢ã€‚
+
+ 为了ä¿è¯éžLRUçš„å¯ç§»åŠ¨é¡µé¢ï¼ŒVMæ供了PageMovable()函数。与__PageMovable()ä¸
+ åŒï¼ŒPageMovable()在lock_page()下验è¯page->mappingå’Œ
+ mapping->a_ops->isolate_page。lock_page()å¯ä»¥é˜²æ­¢çªç„¶ç ´åpage->mapping。
+
+ 使用__SetPageMovable()的驱动应该在释放页é¢ä¹‹å‰é€šè¿‡page_lock()下的
+ __ClearMovablePage()清除该标志。
+
+ * PG_isolated
+
+ 为了防止几个CPUåŒæ—¶è¿›è¡Œéš”离,VM在lock_page()下将隔离的页é¢æ ‡è®°ä¸ºPG_isolated。
+ 因此,如果一个CPUé‡åˆ°PG_isolatedéžLRUå¯ç§»åŠ¨é¡µé¢ï¼Œå®ƒå¯ä»¥è·³è¿‡å®ƒã€‚驱动程åºä¸éœ€è¦
+ æ“作这个标志,因为VM会自动设置/清除它。请记ä½ï¼Œå¦‚果驱动程åºçœ‹åˆ°PG_isolated页,
+ è¿™æ„味ç€è¯¥é¡µå·²ç»è¢«VM隔离,所以它ä¸åº”该碰page.lru字段。PG_isolated标志与
+ PG_reclaim标志是åŒä¹‰çš„,所以驱动程åºä¸åº”该为自己的目的使用PG_isolated。
+
+监测è¿ç§»
+========
+
+以下事件(计数器)å¯ç”¨äºŽç›‘控页é¢è¿ç§»ã€‚
+
+1. PGMIGRATE_SUCCESS: 正常的页é¢è¿ç§»æˆåŠŸã€‚æ¯ä¸ªè®¡æ•°å™¨æ„味ç€ä¸€ä¸ªé¡µé¢è¢«è¿ç§»äº†ã€‚如果该
+ 页是一个éžTHPå’Œéžhugetlb页,那么这个计数器会增加1。如果该页é¢æ˜¯ä¸€ä¸ªTHP或hugetlb
+ 页é¢ï¼Œé‚£ä¹ˆè¿™ä¸ªè®¡æ•°å™¨ä¼šéšç€THP或hugetlbå­é¡µé¢çš„æ•°é‡è€Œå¢žåŠ ã€‚例如,è¿ç§»ä¸€ä¸ªæœ‰4KB大å°
+ 的基础页(å­é¡µï¼‰çš„2MB THP,将导致这个计数器增加512。
+
+2. PGMIGRATE_FAIL: 正常的页é¢è¿ç§»å¤±è´¥ã€‚与上é¢PGMIGRATE_SUCCESS的计数规则相åŒï¼šå¦‚
+ 果是THP或hugetlb,这个计数将被å­é¡µçš„æ•°é‡å¢žåŠ ã€‚
+
+3. THP_MIGRATION_SUCCESS: 一个THP被è¿ç§»è€Œæ²¡æœ‰è¢«åˆ†å‰²ã€‚
+
+4. THP_MIGRATION_FAIL: 一个THPä¸èƒ½è¢«è¿ç§»ï¼Œä¹Ÿä¸èƒ½è¢«åˆ†å‰²ã€‚
+
+5. THP_MIGRATION_SPLIT: 一个THP被è¿ç§»äº†ï¼Œä½†ä¸æ˜¯è¿™æ ·çš„:首先,这个THP必须被分割。
+ 在拆分之åŽï¼Œå¯¹å®ƒçš„å­é¡µé¢è¿›è¡Œäº†è¿ç§»é‡è¯•ã€‚
+
+THP_MIGRATION_* 事件也会更新相应的PGMIGRATE_SUCCESS或PGMIGRATE_FAIL事件。
+例如,一个THPè¿ç§»å¤±è´¥å°†å¯¼è‡´THP_MIGRATION_FAILå’ŒPGMIGRATE_FAIL增加。
+
+Christoph Lameter,2006年5月8日。
+
+Minchan Kim,2016年3月28日。
diff --git a/Documentation/translations/zh_CN/vm/page_owner.rst b/Documentation/translations/zh_CN/mm/page_owner.rst
index 9e951fabba9d..b7f81d7a6589 100644
--- a/Documentation/translations/zh_CN/vm/page_owner.rst
+++ b/Documentation/translations/zh_CN/mm/page_owner.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/page_owner.rst
+:Original: Documentation/mm/page_owner.rst
:翻译:
@@ -96,21 +96,82 @@ page owner在默认情况下是ç¦ç”¨çš„。所以,如果你想使用它,你é
默认情况下, ``page_owner_sort`` 是根æ®buf的时间æ¥æŽ’åºçš„。如果你想
按buf的页数排åºï¼Œè¯·ä½¿ç”¨-må‚数。详细的å‚数是:
- 基本函数:
+ 基本函数::
- Sort:
+ 排åº:
-a 按内存分é…时间排åº
-m 按总内存排åº
-p 按pid排åºã€‚
-P 按tgid排åºã€‚
+ -n 按任务命令å称排åºã€‚
-r 按内存释放时间排åºã€‚
-s 按堆栈跟踪排åºã€‚
-t 按时间排åºï¼ˆé»˜è®¤ï¼‰ã€‚
-
- 其它函数:
-
- Cull:
- -c 通过比较堆栈跟踪而ä¸æ˜¯æ€»å—æ¥è¿›è¡Œå‰”除。
-
- Filter:
+ --sort <order> 指定排åºé¡ºåºã€‚排åºçš„语法是[+|-]key[,[+|-]key[,...]]。从
+ **标准格å¼æŒ‡å®šå™¨**那一节选择一个键。"+"是å¯é€‰çš„,因为默认的方å‘是数字或
+ è¯æ³•çš„增加。å…许混åˆä½¿ç”¨ç¼©å†™å’Œå®Œæ•´æ ¼å¼çš„键。
+
+ 例å­:
+ ./page_owner_sort <input> <output> --sort=n,+pid,-tgid
+ ./page_owner_sort <input> <output> --sort=at
+
+ 其它函数::
+
+ 剔除:
+ --cull <rules>
+ 指定剔除规则。剔除的语法是key[,key[,...]]。从**标准格å¼æŒ‡å®šå™¨**
+ 部分选择一个多字æ¯é”®ã€‚
+ <rules>是一个以逗å·åˆ†éš”的列表形å¼çš„å•ä¸€å‚数,它æ供了一ç§æŒ‡å®šå•ä¸ªå‰”除规则的
+ 方法。 识别的关键字在下é¢çš„**标准格å¼æŒ‡å®šå™¨**部分有æ述。<规则>å¯ä»¥é€šè¿‡é”®çš„
+ åºåˆ—k1,k2,...æ¥æŒ‡å®šï¼Œåœ¨ä¸‹é¢çš„标准排åºé”®éƒ¨åˆ†æœ‰æ述。å…许混åˆä½¿ç”¨ç®€å†™å’Œå®Œæ•´å½¢
+ å¼çš„键。
+
+ Examples:
+ ./page_owner_sort <input> <output> --cull=stacktrace
+ ./page_owner_sort <input> <output> --cull=st,pid,name
+ ./page_owner_sort <input> <output> --cull=n,f
+
+ 过滤:
-f 过滤掉内存已被释放的å—çš„ä¿¡æ¯ã€‚
+
+ 选择:
+ --pid <pidlist> 按pid选择。这将选择进程IDå·å‡ºçŽ°åœ¨<pidlist>中的å—。
+ --tgid <tgidlist> 按tgid选择。这将选择其线程组IDå·å‡ºçŽ°åœ¨<tgidlist>
+ 中的å—。
+ --name <cmdlist> 按任务命令å称选择。这将选择其任务命令å称出现在
+ <cmdlist>中的区å—。
+
+ <pidlist>, <tgidlist>, <cmdlist>是以逗å·åˆ†éš”的列表形å¼çš„å•ä¸ªå‚数,
+ 它æ供了一ç§æŒ‡å®šå•ä¸ªé€‰æ‹©è§„则的方法。
+
+
+ 例å­:
+ ./page_owner_sort <input> <output> --pid=1
+ ./page_owner_sort <input> <output> --tgid=1,2,3
+ ./page_owner_sort <input> <output> --name name1,name2
+
+标准格å¼æŒ‡å®šå™¨
+==============
+::
+
+ --sort的选项:
+
+ 短键 é•¿é”® æè¿°
+ p pid 进程ID
+ tg tgid 线程组ID
+ n name 任务命令å称
+ st stacktrace 页é¢åˆ†é…的堆栈跟踪
+ T txt å—的全文
+ ft free_ts 页é¢é‡Šæ”¾æ—¶çš„时间戳
+ at alloc_ts 页é¢è¢«åˆ†é…时的时间戳
+ ator allocator 页é¢çš„内存分é…器
+
+ --curl的选项:
+
+ 短键 é•¿é”® æè¿°
+ p pid 进程ID
+ tg tgid 线程组ID
+ n name 任务命令å称
+ f free 该页是å¦å·²ç»é‡Šæ”¾
+ st stacktrace 页é¢åˆ†é…的堆栈跟踪
+ ator allocator 页é¢çš„内存分é…器
diff --git a/Documentation/translations/zh_CN/vm/page_table_check.rst b/Documentation/translations/zh_CN/mm/page_table_check.rst
index a29fc1b360e6..e8077310a76c 100644
--- a/Documentation/translations/zh_CN/vm/page_table_check.rst
+++ b/Documentation/translations/zh_CN/mm/page_table_check.rst
@@ -1,6 +1,6 @@
.. SPDX-License-Identifier: GPL-2.0
-:Original: Documentation/vm/page_table_check.rst
+:Original: Documentation/mm/page_table_check.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/remap_file_pages.rst b/Documentation/translations/zh_CN/mm/remap_file_pages.rst
index af6b7e28af23..31e0c54dc36f 100644
--- a/Documentation/translations/zh_CN/vm/remap_file_pages.rst
+++ b/Documentation/translations/zh_CN/mm/remap_file_pages.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/remap_file_pages.rst
+:Original: Documentation/mm/remap_file_pages.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/split_page_table_lock.rst b/Documentation/translations/zh_CN/mm/split_page_table_lock.rst
index 50694d97c426..4fb7aa666037 100644
--- a/Documentation/translations/zh_CN/vm/split_page_table_lock.rst
+++ b/Documentation/translations/zh_CN/mm/split_page_table_lock.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/split_page_table_lock.rst
+:Original: Documentation/mm/split_page_table_lock.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/mm/vmalloced-kernel-stacks.rst b/Documentation/translations/zh_CN/mm/vmalloced-kernel-stacks.rst
new file mode 100644
index 000000000000..d02a23f7f07e
--- /dev/null
+++ b/Documentation/translations/zh_CN/mm/vmalloced-kernel-stacks.rst
@@ -0,0 +1,133 @@
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/mm/vmalloced-kernel-stacks.rst
+
+:翻译:
+
+ å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+
+:校译:
+
+====================
+支æŒè™šæ‹Ÿæ˜ å°„的内核栈
+====================
+
+:作者: Shuah Khan <skhan@linuxfoundation.org>
+
+.. contents:: :local:
+
+概览
+----
+
+è¿™æ˜¯ä»‹ç» `虚拟映射内核栈功能 <https://lwn.net/Articles/694348/>` 的代ç 
+和原始补ä¸ç³»åˆ—çš„ä¿¡æ¯æ±‡æ€»ã€‚
+
+简介
+----
+
+内核堆栈溢出通常难以调试,并使内核容易被(æ¶æ„)利用。问题å¯èƒ½åœ¨ç¨åŽçš„时间出现,使其难以
+隔离和究其根本原因。
+
+带有ä¿æŠ¤é¡µçš„虚拟映射内核堆栈如果溢出,会被立å³æ•èŽ·ï¼Œè€Œä¸ä¼šæ”¾ä»»å…¶å¯¼è‡´éš¾ä»¥è¯Šæ–­çš„æŸ
+å。
+
+HAVE_ARCH_VMAP_STACKå’ŒVMAP_STACKé…置选项能够支æŒå¸¦æœ‰ä¿æŠ¤é¡µçš„虚拟映射堆栈。
+当堆栈溢出时,这个特性会引å‘å¯é çš„异常。溢出åŽå †æ ˆè·Ÿè¸ªçš„å¯ç”¨æ€§ä»¥åŠå¯¹æº¢å‡ºæœ¬èº«çš„
+å“应å–决于架构。
+
+.. note::
+ 截至本文撰写时, arm64, powerpc, riscv, s390, um, å’Œ x86 支æŒVMAP_STACK。
+
+HAVE_ARCH_VMAP_STACK
+--------------------
+
+能够支æŒè™šæ‹Ÿæ˜ å°„内核栈的架构应该å¯ç”¨è¿™ä¸ªboolé…置选项。è¦æ±‚是:
+
+- vmalloc空间必须大到足以容纳许多内核堆栈。这å¯èƒ½æŽ’除了许多32ä½æž¶æž„。
+- vmalloc空间的堆栈需è¦å¯é åœ°å·¥ä½œã€‚例如,如果vmap页表是按需创建的,当堆栈指å‘
+ 具有未填充页表的虚拟地å€æ—¶ï¼Œè¿™ç§æœºåˆ¶éœ€è¦å·¥ä½œï¼Œæˆ–者架构代ç ï¼ˆswitch_to()å’Œ
+ switch_mm(),很å¯èƒ½ï¼‰éœ€è¦ç¡®ä¿å †æ ˆçš„页表项在å¯èƒ½æœªå¡«å……的堆栈上è¿è¡Œä¹‹å‰å·²ç»å¡«
+ 充。
+- 如果堆栈溢出到一个ä¿æŠ¤é¡µï¼Œå°±åº”该å‘生一些åˆç†çš„事情。“åˆç†â€çš„定义是çµæ´»çš„,但
+ 在没有记录任何东西的情况下立å³é‡å¯æ˜¯ä¸å‹å¥½çš„。
+
+VMAP_STACK
+----------
+
+VMAP_STACK boolé…置选项在å¯ç”¨æ—¶åˆ†é…虚拟映射的任务栈。这个选项ä¾èµ–于
+HAVE_ARCH_VMAP_STACK。
+
+- 如果你想使用带有ä¿æŠ¤é¡µçš„虚拟映射的内核堆栈,请å¯ç”¨è¯¥é€‰é¡¹ã€‚这将导致内核栈溢出
+ 被立å³æ•èŽ·ï¼Œè€Œä¸æ˜¯éš¾ä»¥è¯Šæ–­çš„æŸå。
+
+.. note::
+
+ 使用KASAN的这个功能需è¦æž¶æž„支æŒç”¨çœŸå®žçš„å½±å­å†…å­˜æ¥æ”¯æŒè™šæ‹Ÿæ˜ å°„,并且
+ å¿…é¡»å¯ç”¨KASAN_VMALLOC。
+
+.. note::
+
+ å¯ç”¨VMAP_STACK时,无法在堆栈分é…çš„æ•°æ®ä¸Šè¿è¡ŒDMA。
+
+内核é…置选项和ä¾èµ–性ä¸æ–­å˜åŒ–。请å‚考最新的代ç åº“:
+
+`Kconfig <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/Kconfig>`
+
+分é…方法
+--------
+
+当一个新的内核线程被创建时,线程堆栈是由页级分é…器分é…的虚拟连续的内存页组æˆã€‚è¿™
+些页é¢è¢«æ˜ å°„到有PAGE_KERNELä¿æŠ¤çš„连续的内核虚拟空间。
+
+alloc_thread_stack_node()调用__vmalloc_node_range()æ¥åˆ†é…带有PAGE_KERNEL
+ä¿æŠ¤çš„栈。
+
+- 分é…的堆栈被缓存起æ¥ï¼Œä»¥åŽä¼šè¢«æ–°çš„线程é‡ç”¨ï¼Œæ‰€ä»¥åœ¨åˆ†é…/释放堆栈给任务时,è¦æ‰‹åŠ¨
+ 进行memcg核算。因此,__vmalloc_node_range被调用时没有__GFP_ACCOUNT。
+- vm_struct被缓存起æ¥ï¼Œä»¥ä¾¿èƒ½å¤Ÿæ‰¾åˆ°åœ¨ä¸­æ–­ä¸Šä¸‹æ–‡ä¸­å¯åŠ¨çš„空闲线程。 free_thread_stack()
+ å¯ä»¥åœ¨ä¸­æ–­ä¸Šä¸‹æ–‡ä¸­è°ƒç”¨ã€‚
+- 在arm64上,所有VMAP的堆栈都需è¦æœ‰ç›¸åŒçš„对é½æ–¹å¼ï¼Œä»¥ç¡®ä¿VMAP的堆栈溢出检测正常
+ 工作。架构特定的vmap堆栈分é…器照顾到了这个细节。
+- 这并ä¸æ¶‰åŠä¸­æ–­å †æ ˆ--å‚考原始补ä¸
+
+线程栈分é…是由clone()ã€fork()ã€vfork()ã€kernel_thread()通过kernel_clone()
+å¯åŠ¨çš„。留点æ示在这,以便æœç´¢ä»£ç åº“,了解线程栈何时以åŠå¦‚何分é…。
+
+大é‡çš„代ç æ˜¯åœ¨:
+`kernel/fork.c <https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/kernel/fork.c>`.
+
+task_struct中的stack_vm_area指针å¯ä»¥è·Ÿè¸ªè™šæ‹Ÿåˆ†é…的堆栈,一个éžç©ºçš„stack_vm_area
+指针å¯ä»¥è¡¨æ˜Žè™šæ‹Ÿæ˜ å°„的内核堆栈已ç»å¯ç”¨ã€‚
+
+::
+
+ struct vm_struct *stack_vm_area;
+
+堆栈溢出处ç†
+------------
+
+å‰å®ˆæŠ¤é¡µå’ŒåŽå®ˆæŠ¤é¡µæœ‰åŠ©äºŽæ£€æµ‹å †æ ˆæº¢å‡ºã€‚当堆栈溢出到守护页时,处ç†ç¨‹åºå¿…é¡»å°å¿ƒä¸è¦å†
+次溢出堆栈。当处ç†ç¨‹åºè¢«è°ƒç”¨æ—¶ï¼Œå¾ˆå¯èƒ½åªç•™ä¸‹å¾ˆå°‘的堆栈空间。
+
+在x86上,这是通过处ç†è¡¨æ˜Žå†…核堆栈溢出的åŒå¼‚常堆栈的缺页异常æ¥å®žçŽ°çš„。
+
+用守护页测试VMAP分é…
+--------------------
+
+我们如何确ä¿VMAP_STACK在分é…时确实有å‰å®ˆæŠ¤é¡µå’ŒåŽå®ˆæŠ¤é¡µçš„ä¿æŠ¤ï¼Ÿä¸‹é¢çš„ lkdtm 测试
+å¯ä»¥å¸®åŠ©æ£€æµ‹ä»»ä½•å›žå½’。
+
+::
+
+ void lkdtm_STACK_GUARD_PAGE_LEADING()
+ void lkdtm_STACK_GUARD_PAGE_TRAILING()
+
+结论
+----
+
+- vmalloced堆栈的percpu缓存似乎比高阶堆栈分é…è¦å¿«ä¸€äº›ï¼Œè‡³å°‘在缓存命中时是这样。
+- THREAD_INFO_IN_TASK完全摆脱了arch-specific thread_info,并简å•åœ°å°†
+ thread_info(仅包å«æ ‡å¿—)和'int cpu'嵌入task_struct中。
+- 一旦任务死亡,线程栈就å¯ä»¥è¢«é‡Šæ”¾ï¼ˆæ— éœ€ç­‰å¾…RCU),然åŽï¼Œå¦‚果使用vmapped栈,就
+ å¯ä»¥å°†æ•´ä¸ªæ ˆç¼“存起æ¥ï¼Œä»¥ä¾¿åœ¨åŒä¸€cpu上é‡å¤ä½¿ç”¨ã€‚
diff --git a/Documentation/translations/zh_CN/vm/z3fold.rst b/Documentation/translations/zh_CN/mm/z3fold.rst
index 57204aa08caa..9569a6d88270 100644
--- a/Documentation/translations/zh_CN/vm/z3fold.rst
+++ b/Documentation/translations/zh_CN/mm/z3fold.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/z3fold.rst
+:Original: Documentation/mm/z3fold.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/vm/zsmalloc.rst b/Documentation/translations/zh_CN/mm/zsmalloc.rst
index 29e9c70a8eb6..4c8c9b1006a9 100644
--- a/Documentation/translations/zh_CN/vm/zsmalloc.rst
+++ b/Documentation/translations/zh_CN/mm/zsmalloc.rst
@@ -1,4 +1,4 @@
-:Original: Documentation/vm/zs_malloc.rst
+:Original: Documentation/mm/zsmalloc.rst
:翻译:
diff --git a/Documentation/translations/zh_CN/oops-tracing.txt b/Documentation/translations/zh_CN/oops-tracing.txt
deleted file mode 100644
index c5f3bda7abcb..000000000000
--- a/Documentation/translations/zh_CN/oops-tracing.txt
+++ /dev/null
@@ -1,212 +0,0 @@
-Chinese translated version of Documentation/admin-guide/bug-hunting.rst
-
-If you have any comment or update to the content, please contact the
-original document maintainer directly. However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help. Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
-
-Chinese maintainer: Dave Young <hidave.darkstar@gmail.com>
----------------------------------------------------------------------
-Documentation/admin-guide/bug-hunting.rst 的中文翻译
-
-如果想评论或更新本文的内容,请直接è”系原文档的维护者。如果你使用英文
-交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘中文版维护者求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻
-译存在问题,请è”系中文版维护者。
-
-中文版维护者: æ¨ç‘ž Dave Young <hidave.darkstar@gmail.com>
-中文版翻译者: æ¨ç‘ž Dave Young <hidave.darkstar@gmail.com>
-中文版校译者: æŽé˜³ Li Yang <leoyang.li@nxp.com>
- çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com>
-
-以下为正文
----------------------------------------------------------------------
-
-注æ„: ksymoops 在2.6中是没有用的。 请以原有格å¼ä½¿ç”¨Oops(æ¥è‡ªdmesg,等等)。
-忽略任何这样那样关于“解ç Oopsâ€æˆ–者“通过ksymoopsè¿è¡Œâ€çš„文档。 如果你贴出è¿è¡Œè¿‡
-ksymoopsçš„æ¥è‡ª2.6çš„Oops,人们åªä¼šè®©ä½ é‡è´´ä¸€æ¬¡ã€‚
-
-快速总结
--------------
-
-å‘现Oops并å‘é€ç»™çœ‹ä¼¼ç›¸å…³çš„内核领域的维护者。别太担心对ä¸ä¸Šå·ã€‚如果你ä¸ç¡®å®šå°±å‘ç»™
-和你所åšçš„事情相关的代ç çš„负责人。 如果å¯é‡çŽ°è¯•ç€æ述怎样é‡æž„。 那甚至比oops更有
-价值。
-
-如果你对于å‘é€ç»™è°ä¸€æ— æ‰€çŸ¥ï¼Œ å‘ç»™linux-kernel@vger.kernel.org。感谢你帮助Linux
-å°½å¯èƒ½åœ°ç¨³å®šã€‚
-
-Oops在哪里?
-----------------------
-
-通常Oops文本由klogd从内核缓冲区里读å–并传给syslogd,由syslogd写到syslog文件中,
-典型地是/var/log/messages(ä¾èµ–于/etc/syslog.conf)。有时klogd崩溃了,è¿™ç§æƒ…况下你
-能够è¿è¡Œdmesg > fileæ¥ä»Žå†…核缓冲区中读å–æ•°æ®å¹¶ä¿å­˜ä¸‹æ¥ã€‚ å¦åˆ™ä½ å¯ä»¥
-cat /proc/kmsg > file, 然而你必须介入中止传输, kmsg是一个“永ä¸ç»“æŸçš„文件â€ã€‚如
-果机器崩溃å到你ä¸èƒ½è¾“入命令或者ç£ç›˜ä¸å¯ç”¨é‚£ä¹ˆä½ æœ‰ä¸‰ç§é€‰æ‹©:-
-
-(1) 手抄å±å¹•ä¸Šçš„文本待机器é‡å¯åŽå†è¾“入计算机。 麻烦但如果没有针对崩溃的准备,
-这是仅有的选择。 å¦å¤–,你å¯ä»¥ç”¨æ•°ç ç›¸æœºæŠŠå±å¹•æ‹ä¸‹æ¥-ä¸å¤ªå¥½ï¼Œä½†æ¯”没有强。 如果信
-æ¯æ»šåŠ¨åˆ°äº†ç»ˆç«¯çš„上é¢ï¼Œä½ ä¼šå‘现以高分辩率å¯åŠ¨ï¼ˆæ¯”如,vga=791)会让你读到更多的文
-本。(注æ„:这需è¦vesafb,所以对‘早期’的oops没有帮助)
-
-(2)用串å£ç»ˆç«¯å¯åŠ¨ï¼ˆè¯·å‚看Documentation/admin-guide/serial-console.rst),è¿è¡Œä¸€ä¸ªnull
-modem到å¦ä¸€å°æœºå™¨å¹¶ç”¨ä½ å–œæ¬¢çš„通讯工具获å–输出。Minicom工作地很好。
-
-(3)使用Kdump(请å‚看Documentation/admin-guide/kdump/kdump.rst),
-使用在Documentation/admin-guide/kdump/gdbmacros.txt中定义的dmesg gdbå®ï¼Œä»Žæ—§çš„内存中æå–内核
-环形缓冲区。
-
-完整信æ¯
-----------------
-
-注æ„:以下æ¥è‡ªäºŽLinus的邮件适用于2.4内核。 我因为历å²åŽŸå› ä¿ç•™äº†å®ƒï¼Œå¹¶ä¸”因为其中
-一些信æ¯ä»ç„¶é€‚用。 特别注æ„的是,请忽略任何ksymoops的引用。
-
-From: Linus Torvalds <torvalds@osdl.org>
-
-怎样跟踪Oops.. [原å‘到linux-kernel的一å°é‚®ä»¶]
-
-主è¦çš„çªé—¨æ˜¯æœ‰äº”年和这些烦人的oops消æ¯æ‰“交é“çš„ç»éªŒ;-)
-
-实际上,你有办法使它更简å•ã€‚我有两个ä¸åŒçš„方法:
-
- gdb /usr/src/linux/vmlinux
- gdb> disassemble <offending_function>
-
-那是å‘现问题的简å•åŠžæ³•ï¼Œè‡³å°‘如果bug报告åšçš„好的情况下(象这个一样-è¿è¡Œksymoops
-得到oopså‘生的函数åŠå‡½æ•°å†…çš„å移)。
-
-哦,如果报告å‘生的内核以相åŒçš„编译器和相似的é…置编译它会有帮助的。
-
-å¦ä¸€ä»¶è¦åšçš„事是å汇编bug报告的“Codeâ€éƒ¨åˆ†ï¼šksymoops也会用正确的工具æ¥åšè¿™ä»¶äº‹ï¼Œ
-但如果没有那些工具你å¯ä»¥å†™ä¸€ä¸ªå‚»ç¨‹åºï¼š
-
- char str[] = "\xXX\xXX\xXX...";
- main(){}
-
-并用gcc -g编译它然åŽæ‰§è¡Œâ€œdisassemble strâ€ï¼ˆXX部分是由Oops报告的值-ä½ å¯ä»¥ä»…剪切
-粘贴并用“\xâ€æ›¿æ¢ç©ºæ ¼-我就是这么åšçš„,因为我懒得写程åºè‡ªåŠ¨åšè¿™ä¸€åˆ‡ï¼‰ã€‚
-
-å¦å¤–,你å¯ä»¥ç”¨scripts/decodecode这个shell脚本。它的使用方法是:
-decodecode < oops.txt
-
-“Codeâ€ä¹‹åŽçš„å六进制字节å¯èƒ½ï¼ˆåœ¨æŸäº›æž¶æž„上)有一些当å‰æŒ‡ä»¤ä¹‹å‰çš„指令字节以åŠ
-当å‰å’Œä¹‹åŽçš„指令字节
-
-Code: f9 0f 8d f9 00 00 00 8d 42 0c e8 dd 26 11 c7 a1 60 ea 2b f9 8b 50 08 a1
-64 ea 2b f9 8d 34 82 8b 1e 85 db 74 6d 8b 15 60 ea 2b f9 <8b> 43 04 39 42 54
-7e 04 40 89 42 54 8b 43 04 3b 05 00 f6 52 c0
-
-最åŽï¼Œå¦‚果你想知é“代ç æ¥è‡ªå“ªé‡Œï¼Œä½ å¯ä»¥ï¼š
-
- cd /usr/src/linux
- make fs/buffer.s # 或任何产生BUG的文件
-
-然åŽä½ ä¼šæ¯”gdbå汇编更清楚的知é“å‘生了什么。
-
-现在,问题是把你所拥有的所有数æ®ç»“åˆèµ·æ¥ï¼šCæºç ï¼ˆå…³äºŽå®ƒåº”该怎样的一般知识),
-汇编代ç åŠå…¶å汇编得到的代ç ï¼ˆå¦å¤–还有从“oopsâ€æ¶ˆæ¯å¾—到的寄存器状æ€-对了解æ¯åçš„
-指针有用,而且当你有了汇编代ç ä½ ä¹Ÿèƒ½æ‹¿å…¶å®ƒçš„寄存器和任何它们对应的C表达å¼åšåŒ¹é…
-)。
-
-实际上,你仅需看看哪里ä¸åŒ¹é…(这个例å­æ˜¯â€œCodeâ€å汇编和编译器生æˆçš„代ç ä¸åŒ¹é…)。
-然åŽä½ é¡»è¦æ‰¾å‡ºä¸ºä»€ä¹ˆä¸åŒ¹é…。通常很简å•-你看到代ç ä½¿ç”¨äº†ç©ºæŒ‡é’ˆç„¶åŽä½ çœ‹ä»£ç æƒ³çŸ¥é“
-空指针是怎么出现的,还有检查它是å¦åˆæ³•..
-
-现在,如果明白这是一项耗时的工作而且需è¦ä¸€ä¸ç‚¹å„¿çš„专心,没错。这就是我为什么大多
-åªæ˜¯å¿½ç•¥é‚£äº›æ²¡æœ‰ç¬¦å·è¡¨ä¿¡æ¯çš„崩溃报告的原因:简å•çš„说太难查找了(我有一些
-程åºç”¨äºŽåœ¨å†…核代ç æ®µä¸­æœç´¢ç‰¹å®šçš„模å¼ï¼Œè€Œä¸”有时我也已ç»èƒ½æ‰¾å‡ºé‚£äº›å´©æºƒçš„地方,但是
-仅仅是找出正确的åºåˆ—也确实需è¦ç›¸å½“扎实的内核知识)
-
-_有时_会å‘生这ç§æƒ…况,我仅看到崩溃中的å汇编代ç åºåˆ—, 然åŽæˆ‘马上就明白问题出在
-哪里。这时我æ‰æ„识到自己干这个工作已ç»å¤ªé•¿æ—¶é—´äº†;-)
-
- Linus
-
-
----------------------------------------------------------------------------
-关于Oops跟踪的注解:
-
-为了帮助Linus和其它内核开å‘者,klogd纳入了大é‡çš„支æŒæ¥å¤„ç†ä¿æŠ¤é”™è¯¯ã€‚为了拥有对
-地å€è§£æžçš„完整支æŒè‡³å°‘应该使用1.3-pl3çš„sysklogd包。
-
-当ä¿æŠ¤é”™è¯¯å‘生时,klogd守护进程自动把内核日志信æ¯ä¸­çš„é‡è¦åœ°å€ç¿»è¯‘æˆå®ƒä»¬ç›¸åº”的符
-å·ã€‚
-
-klogd执行两ç§ç±»åž‹çš„地å€è§£æžã€‚首先是é™æ€ç¿»è¯‘其次是动æ€ç¿»è¯‘。é™æ€ç¿»è¯‘å’Œksymoops
-一样使用System.map文件。为了åšé™æ€ç¿»è¯‘klogd守护进程必须在åˆå§‹åŒ–时能找到system
-map文件。关于klogd怎样æœç´¢map文件请å‚看klogd手册页。
-
-动æ€åœ°å€ç¿»è¯‘在使用内核å¯è£…载模å—时很é‡è¦ã€‚ 因为内核模å—的内存是从内核动æ€å†…存池
-里分é…的,所以ä¸ç®¡æ˜¯æ¨¡å—开始ä½ç½®è¿˜æ˜¯æ¨¡å—中函数和符å·çš„ä½ç½®éƒ½ä¸æ˜¯å›ºå®šçš„。
-
-内核支æŒå…许程åºå†³å®šè£…载哪些模å—和它们在内存中ä½ç½®çš„系统调用。使用这些系统调用
-klogd守护进程生æˆä¸€å¼ ç¬¦å·è¡¨ç”¨äºŽè°ƒè¯•å‘生在å¯è£…载模å—中的ä¿æŠ¤é”™è¯¯ã€‚
-
-至少klogd会æ供产生ä¿æŠ¤é”™è¯¯çš„模å—å。还å¯æœ‰é¢å¤–的符å·ä¿¡æ¯ä¾›å¯è£…载模å—å¼€å‘者选择
-以从模å—中输出符å·ä¿¡æ¯ã€‚
-
-因为内核模å—环境å¯èƒ½æ˜¯åŠ¨æ€çš„,所以必须有一ç§æœºåˆ¶å½“模å—环境å‘生改å˜æ—¶æ¥é€šçŸ¥klogd
-守护进程。 有一些å¯ç”¨çš„命令行选项å…许klogdå‘当å‰æ‰§è¡Œä¸­çš„守护进程å‘é€ä¿¡å·ï¼Œå‘ŠçŸ¥ç¬¦
-å·ä¿¡æ¯åº”该被刷新了。 更多信æ¯è¯·å‚看klogd手册页。
-
-sysklogdå‘布时包å«ä¸€ä¸ªè¡¥ä¸ä¿®æ”¹äº†modules-2.0.0包,无论何时一个模å—装载或者å¸è½½éƒ½
-会自动å‘klogdå‘é€ä¿¡å·ã€‚打上这个补ä¸æ供了必è¦çš„对调试å‘生于内核å¯è£…载模å—çš„ä¿æŠ¤
-错误的无ç¼æ”¯æŒã€‚
-
-以下是被klogd处ç†è¿‡çš„å‘生在å¯è£…载模å—中的一个ä¿æŠ¤é”™è¯¯ä¾‹å­ï¼š
----------------------------------------------------------------------------
-Aug 29 09:51:01 blizard kernel: Unable to handle kernel paging request at virtual address f15e97cc
-Aug 29 09:51:01 blizard kernel: current->tss.cr3 = 0062d000, %cr3 = 0062d000
-Aug 29 09:51:01 blizard kernel: *pde = 00000000
-Aug 29 09:51:01 blizard kernel: Oops: 0002
-Aug 29 09:51:01 blizard kernel: CPU: 0
-Aug 29 09:51:01 blizard kernel: EIP: 0010:[oops:_oops+16/3868]
-Aug 29 09:51:01 blizard kernel: EFLAGS: 00010212
-Aug 29 09:51:01 blizard kernel: eax: 315e97cc ebx: 003a6f80 ecx: 001be77b edx: 00237c0c
-Aug 29 09:51:01 blizard kernel: esi: 00000000 edi: bffffdb3 ebp: 00589f90 esp: 00589f8c
-Aug 29 09:51:01 blizard kernel: ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
-Aug 29 09:51:01 blizard kernel: Process oops_test (pid: 3374, process nr: 21, stackpage=00589000)
-Aug 29 09:51:01 blizard kernel: Stack: 315e97cc 00589f98 0100b0b4 bffffed4 0012e38e 00240c64 003a6f80 00000001
-Aug 29 09:51:01 blizard kernel: 00000000 00237810 bfffff00 0010a7fa 00000003 00000001 00000000 bfffff00
-Aug 29 09:51:01 blizard kernel: bffffdb3 bffffed4 ffffffda 0000002b 0007002b 0000002b 0000002b 00000036
-Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system_call+82/128]
-Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3
----------------------------------------------------------------------------
-
-Dr. G.W. Wettstein Oncology Research Div. Computing Facility
-Roger Maris Cancer Center INTERNET: greg@wind.rmcc.com
-820 4th St. N.
-Fargo, ND 58122
-Phone: 701-234-7556
-
-
----------------------------------------------------------------------------
-å—污染的内核
-
-一些oops报告在程åºè®°æ•°å™¨ä¹‹åŽåŒ…å«å­—符串'Tainted: '。这表明内核已ç»è¢«ä¸€äº›ä¸œè¥¿ç»™æ±¡
-染了。 该字符串之åŽç´§è·Ÿç€ä¸€ç³»åˆ—çš„ä½ç½®æ•æ„Ÿçš„字符,æ¯ä¸ªä»£è¡¨ä¸€ä¸ªç‰¹å®šçš„污染值。
-
- 1:'G'如果所有装载的模å—都有GPL或相容的许å¯è¯ï¼Œ'P'如果装载了任何的专有模å—。
-没有模å—MODULE_LICENSE或者带有insmod认为是与GPLä¸ç›¸å®¹çš„çš„MODULE_LICENSE的模å—被
-认定是专有的。
-
- 2:'F'如果有任何通过“insmod -fâ€è¢«å¼ºåˆ¶è£…载的模å—,' '如果所有模å—都被正常装载。
-
- 3:'S'如果oopså‘生在SMP内核中,è¿è¡ŒäºŽæ²¡æœ‰è¯æ˜Žå®‰å…¨è¿è¡Œå¤šå¤„ç†å™¨çš„硬件。 当å‰è¿™ç§
-情况仅é™äºŽå‡ ç§ä¸æ”¯æŒSMP的速龙处ç†å™¨ã€‚
-
- 4:'R'如果模å—通过“insmod -fâ€è¢«å¼ºåˆ¶è£…载,' '如果所有模å—都被正常装载。
-
- 5:'M'如果任何处ç†å™¨æŠ¥å‘Šäº†æœºå™¨æ£€æŸ¥å¼‚常,' '如果没有å‘生机器检查异常。
-
- 6:'B'如果页释放函数å‘现了一个错误的页引用或者一些éžé¢„期的页标志。
-
- 7:'U'如果用户或者用户应用程åºç‰¹åˆ«è¯·æ±‚设置污染标志,å¦åˆ™' '。
-
- 8:'D'如果内核刚刚死掉,比如有OOPS或者BUG。
-
-使用'Tainted: '字符串的主è¦åŽŸå› æ˜¯è¦å‘Šè¯‰å†…核调试者,这是å¦æ˜¯ä¸€ä¸ªå¹²å‡€çš„内核亦或å‘
-生了任何的ä¸æ­£å¸¸çš„事。污染是永久的:å³ä½¿å‡ºé”™çš„模å—å·²ç»è¢«å¸è½½äº†ï¼Œæ±¡æŸ“值ä»ç„¶å­˜åœ¨ï¼Œ
-以表明内核ä¸å†å€¼å¾—信任。
diff --git a/Documentation/translations/zh_CN/process/5.Posting.rst b/Documentation/translations/zh_CN/process/5.Posting.rst
index 4ee7de13f373..6a469e1c7deb 100644
--- a/Documentation/translations/zh_CN/process/5.Posting.rst
+++ b/Documentation/translations/zh_CN/process/5.Posting.rst
@@ -19,8 +19,7 @@
内核开å‘社区已ç»å‘展出一套用于å‘布补ä¸çš„约定和过程;éµå¾ªè¿™äº›çº¦å®šå’Œè¿‡ç¨‹å°†ä½¿
å‚与其中的æ¯ä¸ªäººçš„生活更加轻æ¾ã€‚本文档试图æ述这些约定的部分细节;更多信æ¯
也å¯åœ¨ä»¥ä¸‹æ–‡æ¡£ä¸­æ‰¾åˆ°
-:ref:`Documentation/translations/zh_CN/process/submitting-patches.rst <cn_submittingpatches>`,
-:ref:`Documentation/translations/zh_CN/process/submitting-drivers.rst <cn_submittingdrivers>`
+:ref:`Documentation/translations/zh_CN/process/submitting-patches.rst <cn_submittingpatches>`
和 :ref:`Documentation/translations/zh_CN/process/submit-checklist.rst <cn_submitchecklist>`。
何时寄é€
diff --git a/Documentation/translations/zh_CN/process/8.Conclusion.rst b/Documentation/translations/zh_CN/process/8.Conclusion.rst
index 4707f0101964..643b88af97bb 100644
--- a/Documentation/translations/zh_CN/process/8.Conclusion.rst
+++ b/Documentation/translations/zh_CN/process/8.Conclusion.rst
@@ -19,7 +19,6 @@
:ref:`Documentation/translations/zh_CN/process/howto.rst <cn_process_howto>`
文件是一个é‡è¦çš„起点;
:ref:`Documentation/translations/zh_CN/process/submitting-patches.rst <cn_submittingpatches>`
-和 :ref:`Documentation/translations/zh_CN/process/submitting-drivers.rst <cn_submittingdrivers>`
也是所有内核开å‘人员都应该阅读的内容。许多内部内核API都是使用kerneldoc机制
记录的;“make htmldocsâ€æˆ–“make pdfdocsâ€å¯ç”¨äºŽä»¥HTML或PDFæ ¼å¼ç”Ÿæˆè¿™äº›æ–‡æ¡£
(尽管æŸäº›å‘行版æ供的tex版本会é‡åˆ°å†…部é™åˆ¶ï¼Œæ— æ³•æ­£ç¡®å¤„ç†æ–‡æ¡£ï¼‰ã€‚
diff --git a/Documentation/translations/zh_CN/process/coding-style.rst b/Documentation/translations/zh_CN/process/coding-style.rst
index 638d714bec83..fa28ef0a7fee 100644
--- a/Documentation/translations/zh_CN/process/coding-style.rst
+++ b/Documentation/translations/zh_CN/process/coding-style.rst
@@ -1,21 +1,23 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: :ref:`Documentation/process/coding-style.rst <codingstyle>`
+:Original: Documentation/process/coding-style.rst
.. _cn_codingstyle:
-译者::
+:译者:
+ - å¼ ä¹ Zhang Le <r0bertz@gentoo.org>
+ - Andy Deng <theandy.deng@gmail.com>
+ - å´æƒ³æˆ <bobwxc@email.cn>
- 中文版维护者: å¼ ä¹ Zhang Le <r0bertz@gentoo.org>
- 中文版翻译者: å¼ ä¹ Zhang Le <r0bertz@gentoo.org>
- 中文版校译者: çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com>
- wheelz <kernel.zeng@gmail.com>
- 管旭东 Xudong Guan <xudong.guan@gmail.com>
- Li Zefan <lizf@cn.fujitsu.com>
- Wang Chen <wangchen@cn.fujitsu.com>
+:校译:
+ - çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com>
+ - wheelz <kernel.zeng@gmail.com>
+ - 管旭东 Xudong Guan <xudong.guan@gmail.com>
+ - Li Zefan <lizf@cn.fujitsu.com>
+ - Wang Chen <wangchen@cn.fujitsu.com>
Linux 内核代ç é£Žæ ¼
-=========================
+==================
这是一个简短的文档,æ述了 linux 内核的首选代ç é£Žæ ¼ã€‚代ç é£Žæ ¼æ˜¯å› äººè€Œå¼‚的,
而且我ä¸æ„¿æ„把自己的观点强加给任何人,但这就åƒæˆ‘去åšä»»ä½•äº‹æƒ…都必须éµå¾ªçš„原则
@@ -29,7 +31,7 @@ Linux 内核代ç é£Žæ ¼
1) 缩进
---------------
+-------
制表符是 8 个字符,所以缩进也是 8 个字符。有些异端è¿åŠ¨è¯•å›¾å°†ç¼©è¿›å˜ä¸º 4 (甚至
2ï¼) 字符深,这几乎相当于å°è¯•å°†åœ†å‘¨çŽ‡çš„值定义为 3。
@@ -73,6 +75,22 @@ Linux 内核代ç é£Žæ ¼
if (condition) do_this;
do_something_everytime;
+ä¸è¦ä½¿ç”¨é€—å·æ¥é¿å…使用大括å·ï¼š
+
+.. code-block:: c
+
+ if (condition)
+ do_this(), do_that();
+
+使用大括å·åŒ…裹多语å¥ï¼š
+
+.. code-block:: c
+
+ if (condition) {
+ do_this();
+ do_that();
+ }
+
也ä¸è¦åœ¨ä¸€è¡Œé‡Œæ”¾å¤šä¸ªèµ‹å€¼è¯­å¥ã€‚内核代ç é£Žæ ¼è¶…级简å•ã€‚就是é¿å…å¯èƒ½å¯¼è‡´åˆ«äººè¯¯è¯»
的表达å¼ã€‚
@@ -83,20 +101,25 @@ Linux 内核代ç é£Žæ ¼
2) 把长的行和字符串打散
-------------------------------
+-----------------------
代ç é£Žæ ¼çš„æ„义就在于使用平常使用的工具æ¥ç»´æŒä»£ç çš„å¯è¯»æ€§å’Œå¯ç»´æŠ¤æ€§ã€‚
æ¯ä¸€è¡Œçš„长度的é™åˆ¶æ˜¯ 80 列,我们强烈建议您éµå®ˆè¿™ä¸ªæƒ¯ä¾‹ã€‚
长于 80 列的语å¥è¦æ‰“æ•£æˆæœ‰æ„义的片段。除éžè¶…过 80 列能显著增加å¯è¯»æ€§ï¼Œå¹¶ä¸”ä¸
-会éšè—ä¿¡æ¯ã€‚å­ç‰‡æ®µè¦æ˜Žæ˜¾çŸ­äºŽæ¯ç‰‡æ®µï¼Œå¹¶æ˜Žæ˜¾é å³ã€‚è¿™åŒæ ·é€‚用于有ç€å¾ˆé•¿å‚数列表
-的函数头。然而,ç»å¯¹ä¸è¦æ‰“散对用户å¯è§çš„字符串,例如 printk ä¿¡æ¯ï¼Œå› ä¸ºè¿™æ ·å°±
+会éšè—ä¿¡æ¯ã€‚
+
+å­ç‰‡æ®µè¦æ˜Žæ˜¾çŸ­äºŽæ¯ç‰‡æ®µï¼Œå¹¶æ˜Žæ˜¾é å³ã€‚一ç§éžå¸¸å¸¸ç”¨çš„æ ·å¼æ˜¯å°†å­ä½“与函数左括å·å¯¹é½ã€‚
+
+è¿™åŒæ ·é€‚用于有ç€å¾ˆé•¿å‚数列表的函数头。
+
+然而,ç»å¯¹ä¸è¦æ‰“散对用户å¯è§çš„字符串,例如 printk ä¿¡æ¯ï¼Œå› ä¸ºè¿™æ ·å°±
很难对它们 grep。
3) 大括å·å’Œç©ºæ ¼çš„放置
-------------------------------
+---------------------
C 语言风格中å¦å¤–一个常è§é—®é¢˜æ˜¯å¤§æ‹¬å·çš„放置。和缩进大å°ä¸åŒï¼Œé€‰æ‹©æˆ–弃用æŸç§æ”¾
置策略并没有多少技术上的原因,ä¸è¿‡é¦–选的方å¼ï¼Œå°±åƒ Kernighan å’Œ Ritchie 展示
@@ -132,12 +155,12 @@ C 语言风格中å¦å¤–一个常è§é—®é¢˜æ˜¯å¤§æ‹¬å·çš„放置。和缩进大å°
body of function
}
-全世界的异端å¯èƒ½ä¼šæŠ±æ€¨è¿™ä¸ªä¸ä¸€è‡´æ€§æ˜¯... 呃... ä¸ä¸€è‡´çš„,ä¸è¿‡æ‰€æœ‰æ€ç»´å¥å…¨çš„人
+全世界的异端å¯èƒ½ä¼šæŠ±æ€¨è¿™ä¸ªä¸ä¸€è‡´æ€§æ˜¯â€¦â€¦å‘ƒâ€¦â€¦ä¸ä¸€è‡´ï¼Œä¸è¿‡æ‰€æœ‰æ€ç»´å¥å…¨çš„人
éƒ½çŸ¥é“ (a) K&R 是 **正确的** 并且 (b) K&R 是正确的。此外,ä¸ç®¡æ€Žæ ·å‡½æ•°éƒ½æ˜¯ç‰¹
殊的 (C 函数是ä¸èƒ½åµŒå¥—çš„)。
注æ„结æŸå¤§æ‹¬å·ç‹¬è‡ªå æ®ä¸€è¡Œï¼Œé™¤éžå®ƒåŽé¢è·Ÿç€åŒä¸€ä¸ªè¯­å¥çš„剩余部分,也就是 do 语
-å¥ä¸­çš„ "while" 或者 if 语å¥ä¸­çš„ "else",åƒè¿™æ ·ï¼š
+å¥ä¸­çš„ ``while`` 或者 if 语å¥ä¸­çš„ ``else`` ,åƒè¿™æ ·ï¼š
.. code-block:: c
@@ -191,7 +214,7 @@ C 语言风格中å¦å¤–一个常è§é—®é¢˜æ˜¯å¤§æ‹¬å·çš„放置。和缩进大å°
}
3.1) 空格
-********************
+*********
Linux å†…æ ¸çš„ç©ºæ ¼ä½¿ç”¨æ–¹å¼ (主è¦) å–决于它是用于函数还是关键字。(大多数) 关键字
åŽè¦åŠ ä¸€ä¸ªç©ºæ ¼ã€‚值得注æ„的例外是 sizeof, typeof, alignof å’Œ __attribute__,这
@@ -254,7 +277,7 @@ Linux å†…æ ¸çš„ç©ºæ ¼ä½¿ç”¨æ–¹å¼ (主è¦) å–决于它是用于函数还是关é
4) 命å
-------------------------------
+-------
C 是一个简朴的语言,你的命å也应该这样。和 Modula-2 å’Œ Pascal 程åºå‘˜ä¸åŒï¼Œ
C 程åºå‘˜ä¸ä½¿ç”¨ç±»ä¼¼ ThisVariableIsATemporaryCounter 这样åŽä¸½çš„å字。C 程åºå‘˜ä¼š
@@ -275,11 +298,31 @@ C 程åºå‘˜ä¸ä½¿ç”¨ç±»ä¼¼ ThisVariableIsATemporaryCounter 这样åŽä¸½çš„åå­—
å¯èƒ½çš„è¯ã€‚类似的, ``tmp`` å¯ä»¥ç”¨æ¥ç§°å‘¼ä»»æ„类型的临时å˜é‡ã€‚
如果你怕混淆了你的本地å˜é‡å,你就é‡åˆ°å¦ä¸€ä¸ªé—®é¢˜äº†ï¼Œå«åšå‡½æ•°å¢žé•¿è·å°”蒙失衡综
-åˆç—‡ã€‚请看第六章 (函数)。
+åˆå¾ã€‚请看第六章 (函数)。
+对于符å·å称和文档,é¿å…引入新的“master/slaveâ€ï¼ˆæˆ–独立于“masterâ€çš„“slaveâ€ï¼‰
+和“blacklist/whitelistâ€ã€‚
+
+“master/slaveâ€æŽ¨è替æ¢ä¸ºï¼š
+ '{primary,main} / {secondary,replica,subordinate}'
+ '{initiator,requester} / {target,responder}'
+ '{controller,host} / {device,worker,proxy}'
+ 'leader/follower'
+ 'director/performer'
+
+“blacklist/whitelistâ€æŽ¨è替æ¢ä¸ºï¼š
+ 'denylist/allowlist'
+ 'blocklist/passlist'
+
+引入新用法的例外情况是:维护用户空间ABI/API,或更新现有(截至2020年)硬件或
+å议规范的代ç æ—¶è¦æ±‚这些术语。对于新规范,尽å¯èƒ½å°†æœ¯è¯­çš„规范用法转æ¢ä¸ºå†…æ ¸
+ç¼–ç æ ‡å‡†ã€‚
+
+.. warning::
+ 以上主从ã€é»‘白åå•è§„则ä¸é€‚用于中文文档,请勿更改中文术语ï¼
5) Typedef
------------
+----------
ä¸è¦ä½¿ç”¨ç±»ä¼¼ ``vps_t`` 之类的东西。
@@ -308,7 +351,7 @@ C 程åºå‘˜ä¸ä½¿ç”¨ç±»ä¼¼ ThisVariableIsATemporaryCounter 这样åŽä¸½çš„åå­—
.. note::
- ä¸é€æ˜Žæ€§å’Œ "访问函数" 本身是ä¸å¥½çš„。我们使用 pte_t 等类型的原因在于真
+ ä¸é€æ˜Žæ€§å’Œâ€œè®¿é—®å‡½æ•°â€æœ¬èº«æ˜¯ä¸å¥½çš„。我们使用 pte_t 等类型的原因在于真
的是完全没有任何共用的å¯è®¿é—®ä¿¡æ¯ã€‚
(b) 清楚的整数类型,如此,这层抽象就å¯ä»¥ **帮助** 消除到底是 ``int`` 还是
@@ -353,7 +396,7 @@ C 程åºå‘˜ä¸ä½¿ç”¨ç±»ä¼¼ ThisVariableIsATemporaryCounter 这样åŽä¸½çš„åå­—
6) 函数
-------------------------------
+-------
函数应该简短而漂亮,并且åªå®Œæˆä¸€ä»¶äº‹æƒ…。函数应该å¯ä»¥ä¸€å±æˆ–者两å±æ˜¾ç¤ºå®Œ (我们
éƒ½çŸ¥é“ ISO/ANSI å±å¹•å¤§å°æ˜¯ 80x24),åªåšä¸€ä»¶äº‹æƒ…,而且把它åšå¥½ã€‚
@@ -383,12 +426,46 @@ C 程åºå‘˜ä¸ä½¿ç”¨ç±»ä¼¼ ThisVariableIsATemporaryCounter 这样åŽä¸½çš„åå­—
}
EXPORT_SYMBOL(system_is_up);
-在函数原型中,包å«å‡½æ•°å和它们的数æ®ç±»åž‹ã€‚虽然 C 语言里没有这样的è¦æ±‚,在
+6.1) 函数原型
+*************
+
+在函数原型中包å«å‚æ•°å和它们的数æ®ç±»åž‹ã€‚虽然 C 语言里没有这样的è¦æ±‚,但在
Linux 里这是æ倡的åšæ³•ï¼Œå› ä¸ºè¿™æ ·å¯ä»¥å¾ˆç®€å•çš„给读者æ供更多的有价值的信æ¯ã€‚
+ä¸è¦åœ¨å‡½æ•°å£°æ˜Žé‡Œä½¿ç”¨ ``extern`` 关键字,因为这会导致代ç è¡Œå˜é•¿ï¼Œå¹¶ä¸”ä¸æ˜¯ä¸¥æ ¼
+必需的。
+
+写函数原型时,请ä¿æŒ `元素顺åºè§„则 <https://lore.kernel.org/mm-commits/CAHk-=wiOCLRny5aifWNhr621kYrJwhfURsa0vFPeUEm8mF0ufg@mail.gmail.com/>`_ 。
+例如下列函数声明::
+
+ __init void * __must_check action(enum magic value, size_t size, u8 count,
+ char *fmt, ...) __printf(4, 5) __malloc;
+
+推è的函数原型元素顺åºæ˜¯ï¼š
+
+- 储存类型(下方的 ``static __always_inline`` ï¼Œæ³¨æ„ ``__always_inline``
+ 技术上æ¥è®²æ˜¯ä¸ªå±žæ€§ä½†è¢«å½“åš ``inline`` )
+- 储存类型属性(上方的 ``__init`` ——å³èŠ‚å£°æ˜Žï¼Œä½†ä¹Ÿåƒ ``__cold`` )
+- 返回类型(上方的 ``void *`` )
+- 返回类型属性(上方的 ``__must_check`` )
+- 函数å(上方的 ``action`` )
+- 函数å‚数(上方的 ``(enum magic value, size_t size, u8 count, char *fmt, ...)`` ,
+ 注æ„必须写上å‚æ•°å)
+- 函数å‚数属性(上方的 ``__printf(4, 5)`` )
+- 函数行为属性(上方的 ``__malloc`` )
+
+请注æ„,对于函数 **定义** (å³å®žé™…函数体),编译器ä¸å…许在函数å‚数之åŽæ·»åŠ å‡½
+æ•°å‚数属性。在这ç§æƒ…况下,它们应该跟éšå­˜å‚¨ç±»åž‹å±žæ€§ï¼ˆä¾‹å¦‚,与上é¢çš„ **声明**
+示例相比,请注æ„下é¢çš„ ``__printf(4, 5)`` çš„ä½ç½®å‘生了å˜åŒ–)::
+
+ static __always_inline __init __printf(4, 5) void * __must_check action(enum magic value,
+ size_t size, u8 count, char *fmt, ...) __malloc
+ {
+ ...
+ }
7) 集中的函数退出途径
-------------------------------
+---------------------
虽然被æŸäº›äººå£°ç§°å·²ç»è¿‡æ—¶ï¼Œä½†æ˜¯ goto 语å¥çš„等价物还是ç»å¸¸è¢«ç¼–译器所使用,具体
å½¢å¼æ˜¯æ— æ¡ä»¶è·³è½¬æŒ‡ä»¤ã€‚
@@ -432,7 +509,7 @@ Linux 里这是æ倡的åšæ³•ï¼Œå› ä¸ºè¿™æ ·å¯ä»¥å¾ˆç®€å•çš„给读者æä¾›æ›
return result;
}
-一个需è¦æ³¨æ„的常è§é”™è¯¯æ˜¯ ``一个 err 错误`` ,就åƒè¿™æ ·ï¼š
+一个需è¦æ³¨æ„的常è§é”™è¯¯æ˜¯ ``å• err 错误`` ,就åƒè¿™æ ·ï¼š
.. code-block:: c
@@ -456,19 +533,19 @@ Linux 里这是æ倡的åšæ³•ï¼Œå› ä¸ºè¿™æ ·å¯ä»¥å¾ˆç®€å•çš„给读者æä¾›æ›
8) 注释
-------------------------------
+-------
注释是好的,ä¸è¿‡æœ‰è¿‡åº¦æ³¨é‡Šçš„å±é™©ã€‚永远ä¸è¦åœ¨æ³¨é‡Šé‡Œè§£é‡Šä½ çš„代ç æ˜¯å¦‚何è¿ä½œçš„:
更好的åšæ³•æ˜¯è®©åˆ«äººä¸€çœ‹ä½ çš„代ç å°±å¯ä»¥æ˜Žç™½ï¼Œè§£é‡Šå†™çš„很差的代ç æ˜¯æµªè´¹æ—¶é—´ã€‚
-一般的,你想è¦ä½ çš„注释告诉别人你的代ç åšäº†ä»€ä¹ˆï¼Œè€Œä¸æ˜¯æ€Žä¹ˆåšçš„。也请你ä¸è¦æŠŠ
+一般æ¥è¯´ä½ ç”¨æ³¨é‡Šå‘Šè¯‰åˆ«äººä½ çš„代ç åšäº†ä»€ä¹ˆï¼Œè€Œä¸æ˜¯æ€Žä¹ˆåšçš„。也请你ä¸è¦æŠŠ
注释放在一个函数体内部:如果函数å¤æ‚到你需è¦ç‹¬ç«‹çš„注释其中的一部分,你很å¯èƒ½
需è¦å›žåˆ°ç¬¬å…­ç« çœ‹ä¸€çœ‹ã€‚ä½ å¯ä»¥åšä¸€äº›å°æ³¨é‡Šæ¥æ³¨æ˜Žæˆ–警告æŸäº›å¾ˆèªæ˜Ž (或者槽糕) çš„
åšæ³•ï¼Œä½†ä¸è¦åŠ å¤ªå¤šã€‚你应该åšçš„,是把注释放在函数的头部,告诉人们它åšäº†ä»€ä¹ˆï¼Œ
也å¯ä»¥åŠ ä¸Šå®ƒåšè¿™äº›äº‹æƒ…的原因。
-当注释内核 API 函数时,请使用 kernel-doc æ ¼å¼ã€‚请看
-Documentation/doc-guide/ å’Œ scripts/kernel-doc 以获得详细信æ¯ã€‚
+当注释内核 API 函数时,请使用 kernel-doc æ ¼å¼ã€‚详è§
+Documentation/translations/zh_CN/doc-guide/index.rst 和 scripts/kernel-doc 。
长 (多行) 注释的首选风格是:
@@ -500,17 +577,18 @@ Documentation/doc-guide/ å’Œ scripts/kernel-doc 以获得详细信æ¯ã€‚
9) ä½ å·²ç»æŠŠäº‹æƒ…弄糟了
-------------------------------
+---------------------
-这没什么,我们都是这样。å¯èƒ½ä½ çš„使用了很长时间 Unix 的朋å‹å·²ç»å‘Šè¯‰ä½ 
+这没什么,我们都是这样。å¯èƒ½ä½ é•¿æœŸä½¿ç”¨ Unix 的朋å‹å·²ç»å‘Šè¯‰ä½ 
``GNU emacs`` 能自动帮你格å¼åŒ– C æºä»£ç ï¼Œè€Œä¸”你也注æ„到了,确实是这样,ä¸è¿‡å®ƒ
所使用的默认值和我们想è¦çš„相去甚远 (实际上,甚至比éšæœºæ‰“的还è¦å·®â€”—无数个猴å­
-在 GNU emacs 里打字永远ä¸ä¼šåˆ›é€ å‡ºä¸€ä¸ªå¥½ç¨‹åº) (译注:Infinite Monkey Theorem)
+在 GNU emacs 里打字永远ä¸ä¼šåˆ›é€ å‡ºä¸€ä¸ªå¥½ç¨‹åº)
+*(译注:Infinite Monkey Theorem)*
所以你è¦ä¹ˆæ”¾å¼ƒ GNU emacs,è¦ä¹ˆæ”¹å˜å®ƒè®©å®ƒä½¿ç”¨æ›´åˆç†çš„设定。è¦é‡‡ç”¨åŽä¸€ä¸ªæ–¹æ¡ˆï¼Œ
ä½ å¯ä»¥æŠŠä¸‹é¢è¿™æ®µç²˜è´´åˆ°ä½ çš„ .emacs 文件里。
-.. code-block:: none
+.. code-block:: elisp
(defun c-lineup-arglist-tabs-only (ignored)
"Line up argument lists by tabs, not spaces"
@@ -529,7 +607,7 @@ Documentation/doc-guide/ å’Œ scripts/kernel-doc 以获得详细信æ¯ã€‚
(c-offsets-alist . (
(arglist-close . c-lineup-arglist-tabs-only)
(arglist-cont-nonempty .
- (c-lineup-gcc-asm-reg c-lineup-arglist-tabs-only))
+ (c-lineup-gcc-asm-reg c-lineup-arglist-tabs-only))
(arglist-intro . +)
(brace-list-intro . +)
(c . c-lineup-C-comments)
@@ -573,9 +651,14 @@ Documentation/doc-guide/ å’Œ scripts/kernel-doc 以获得详细信æ¯ã€‚
``indent`` 有很多选项,特别是é‡æ–°æ ¼å¼åŒ–注释的时候,你å¯èƒ½éœ€è¦çœ‹ä¸€ä¸‹å®ƒçš„手册。
ä¸è¿‡è®°ä½ï¼š ``indent`` ä¸èƒ½ä¿®æ­£å的编程习惯。
+请注æ„,您还å¯ä»¥ä½¿ç”¨ ``clang-format`` 工具帮助您处ç†è¿™äº›è§„则,快速自动é‡æ–°æ ¼
+å¼åŒ–部分代ç ï¼Œå¹¶å®¡é˜…整个文件以å‘现代ç é£Žæ ¼é”™è¯¯ã€æ‰“字错误和å¯èƒ½çš„改进。它还å¯
+ä»¥æ–¹ä¾¿åœ°æŽ’åº ``#include`` ,对é½å˜é‡/å®ï¼Œé‡æŽ’文本和其他类似任务。
+è¯¦è§ Documentation/process/clang-format.rst 。
+
10) Kconfig é…置文件
-------------------------------
+--------------------
对于é布æºç æ ‘的所有 Kconfig* é…置文件æ¥è¯´ï¼Œå®ƒä»¬ç¼©è¿›æ–¹å¼æœ‰æ‰€ä¸åŒã€‚紧挨ç€
``config`` 定义的行,用一个制表符缩进,然而 help ä¿¡æ¯çš„缩进则é¢å¤–增加 2 个空
@@ -598,11 +681,11 @@ Documentation/doc-guide/ å’Œ scripts/kernel-doc 以获得详细信æ¯ã€‚
depends on ADFS_FS
...
-è¦æŸ¥çœ‹é…置文件的完整文档,请看 Documentation/kbuild/kconfig-language.rst。
+è¦æŸ¥çœ‹é…置文件的完整文档,请看 Documentation/kbuild/kconfig-language.rst 。
11) æ•°æ®ç»“æž„
-------------------------------
+------------
如果一个数æ®ç»“构,在创建和销æ¯å®ƒçš„å•çº¿æ‰§è¡ŒçŽ¯å¢ƒä¹‹å¤–å¯è§ï¼Œé‚£ä¹ˆå®ƒå¿…é¡»è¦æœ‰ä¸€ä¸ªå¼•
用计数器。内核里没有垃圾收集 (并且内核之外的垃圾收集慢且效率低下),这æ„味ç€ä½ 
@@ -626,7 +709,7 @@ mm_count),和文件系统 (``struct super_block``: s_count å’Œ s_active) 中æ‰
12) å®ï¼Œæžšä¸¾å’ŒRTL
-------------------------------
+-----------------
用于定义常é‡çš„å®çš„åå­—åŠæžšä¸¾é‡Œçš„标签需è¦å¤§å†™ã€‚
@@ -638,7 +721,7 @@ mm_count),和文件系统 (``struct super_block``: s_count å’Œ s_active) 中æ‰
å®çš„å字请用大写字æ¯ï¼Œä¸è¿‡å½¢å¦‚函数的å®çš„åå­—å¯ä»¥ç”¨å°å†™å­—æ¯ã€‚
-一般的,如果能写æˆå†…è”函数就ä¸è¦å†™æˆåƒå‡½æ•°çš„å®ã€‚
+通常如果能写æˆå†…è”函数就ä¸è¦å†™æˆåƒå‡½æ•°çš„å®ã€‚
å«æœ‰å¤šä¸ªè¯­å¥çš„å®åº”该被包å«åœ¨ä¸€ä¸ª do-while 代ç å—里:
@@ -696,18 +779,18 @@ mm_count),和文件系统 (``struct super_block``: s_count å’Œ s_active) 中æ‰
(ret); \
})
-ret 是本地å˜é‡çš„通用åå­— - __foo_ret æ›´ä¸å®¹æ˜“与一个已存在的å˜é‡å†²çªã€‚
+ret 是本地å˜é‡çš„通用å字—— __foo_ret æ›´ä¸å®¹æ˜“与一个已存在的å˜é‡å†²çªã€‚
cpp 手册对å®çš„讲解很详细。gcc internals 手册也详细讲解了 RTL,内核里的汇编语
言ç»å¸¸ç”¨åˆ°å®ƒã€‚
13) 打å°å†…核消æ¯
-------------------------------
+----------------
-内核开å‘者应该是å—过良好教育的。请一定注æ„内核信æ¯çš„拼写,以给人以好的å°è±¡ã€‚
+内核开å‘者应该看起æ¥æœ‰æ–‡åŒ–。请一定注æ„内核信æ¯çš„拼写,以给人良好的å°è±¡ã€‚
ä¸è¦ç”¨ä¸è§„范的å•è¯æ¯”如 ``dont``,而è¦ç”¨ ``do not`` 或者 ``don't`` 。ä¿è¯è¿™äº›ä¿¡
-æ¯ç®€å•æ˜Žäº†,无歧义。
+æ¯ç®€å•æ˜Žäº†ã€æ— æ­§ä¹‰ã€‚
内核信æ¯ä¸å¿…以英文å¥å·ç»“æŸã€‚
@@ -724,17 +807,18 @@ dev_info() 等等。对于那些ä¸å’ŒæŸä¸ªç‰¹å®šè®¾å¤‡ç›¸å…³è¿žçš„ä¿¡æ¯ï¼Œ<li
或设定了 CONFIG_DYNAMIC_DEBUG。实际这åŒæ ·æ˜¯ä¸ºäº† dev_dbg(),一个相关约定是在一
个已ç»å¼€å¯äº† DEBUG 时,使用 VERBOSE_DEBUG æ¥æ·»åŠ  dev_vdbg()。
-许多å­ç³»ç»Ÿæ‹¥æœ‰ Kconfig 调试选项æ¥å¼€å¯ -DDEBUG 在对应的 Makefile 里é¢ï¼›åœ¨å…¶ä»–
+许多å­ç³»ç»Ÿæ‹¥æœ‰ Kconfig 调试选项æ¥å¼€å¯å¯¹åº” Makefile 里é¢çš„ -DDEBUG;在其他
情况下,特殊文件使用 #define DEBUG。当一æ¡è°ƒè¯•ä¿¡æ¯éœ€è¦è¢«æ— æ¡ä»¶æ‰“å°æ—¶ï¼Œä¾‹å¦‚,
如果已ç»åŒ…å«ä¸€ä¸ªè°ƒè¯•ç›¸å…³çš„ #ifdef æ¡ä»¶ï¼Œprintk(KERN_DEBUG ...) å°±å¯è¢«ä½¿ç”¨ã€‚
14) 分é…内存
-------------------------------
+------------
内核æ供了下é¢çš„一般用途的内存分é…函数:
kmalloc(), kzalloc(), kmalloc_array(), kcalloc(), vmalloc() 和 vzalloc()。
-请å‚考 API 文档以获å–有关它们的详细信æ¯ã€‚
+请å‚考 API 文档以获å–有关它们的详细信æ¯ï¼š
+Documentation/translations/zh_CN/core-api/memory-allocation.rst 。
传递结构体大å°çš„首选形å¼æ˜¯è¿™æ ·çš„:
@@ -761,11 +845,13 @@ kmalloc(), kzalloc(), kmalloc_array(), kcalloc(), vmalloc() 和 vzalloc()。
p = kcalloc(n, sizeof(...), ...);
-两ç§å½¢å¼æ£€æŸ¥åˆ†é…å¤§å° n * sizeof(...) 的溢出,如果溢出返回 NULL。
+两ç§å½¢å¼éƒ½ä¼šæ£€æŸ¥åˆ†é… n * sizeof(...) 大å°æ—¶å†…存的溢出,如果溢出返回 NULL。
+在没有 __GFP_NOWARN 的情况下使用时,这些通用分é…函数都会在失败时å‘起堆栈转储,
+因此当返回NULL时,没有必è¦å‘出é¢å¤–的失败消æ¯ã€‚
15) 内è”弊病
-------------------------------
+------------
有一个常è§çš„误解是 ``内è”`` 是 gcc æ供的å¯ä»¥è®©ä»£ç è¿è¡Œæ›´å¿«çš„一个选项。虽然使
用内è”函数有时候是æ°å½“çš„ (比如作为一ç§æ›¿ä»£å®çš„æ–¹å¼ï¼Œè¯·çœ‹ç¬¬å二章),ä¸è¿‡å¾ˆå¤šæƒ…
@@ -786,7 +872,7 @@ inline gcc 也å¯ä»¥è‡ªåŠ¨ä½¿å…¶å†…è”。而且其他用户å¯èƒ½ä¼šè¦æ±‚移除
16) 函数返回值åŠå‘½å
-------------------------------
+--------------------
函数å¯ä»¥è¿”回多ç§ä¸åŒç±»åž‹çš„值,最常è§çš„一ç§æ˜¯è¡¨æ˜Žå‡½æ•°æ‰§è¡ŒæˆåŠŸæˆ–者失败的值。这样
的一个值å¯ä»¥è¡¨ç¤ºä¸ºä¸€ä¸ªé”™è¯¯ä»£ç æ•´æ•° (-Exxxï¼å¤±è´¥ï¼Œ0ï¼æˆåŠŸ) 或者一个 ``æˆåŠŸ``
@@ -797,7 +883,7 @@ inline gcc 也å¯ä»¥è‡ªåŠ¨ä½¿å…¶å†…è”。而且其他用户å¯èƒ½ä¼šè¦æ±‚移除
äº§ç”Ÿè¿™ç§ bug,请éµå¾ªä¸‹é¢çš„惯例::
如果函数的å字是一个动作或者强制性的命令,那么这个函数应该返回错误代
- ç æ•´æ•°ã€‚如果是一个判断,那么函数应该返回一个 "æˆåŠŸ" 布尔值。
+ ç æ•´æ•°ã€‚如果是一个判断,那么函数应该返回一个“æˆåŠŸâ€å¸ƒå°”值。
比如, ``add work`` 是一个命令,所以 add_work() 在æˆåŠŸæ—¶è¿”回 0,在失败时返回
-EBUSY。类似的,因为 ``PCI device present`` 是一个判断,所以 pci_dev_present()
@@ -806,13 +892,35 @@ inline gcc 也å¯ä»¥è‡ªåŠ¨ä½¿å…¶å†…è”。而且其他用户å¯èƒ½ä¼šè¦æ±‚移除
所有 EXPORTed 函数都必须éµå®ˆè¿™ä¸ªæƒ¯ä¾‹ï¼Œæ‰€æœ‰çš„公共函数也都应该如此。ç§æœ‰
(static) 函数ä¸éœ€è¦å¦‚此,但是我们也推è这样åšã€‚
-返回值是实际计算结果而ä¸æ˜¯è®¡ç®—是å¦æˆåŠŸçš„标志的函数ä¸å—此惯例的é™åˆ¶ã€‚一般的,
+返回值是实际计算结果而ä¸æ˜¯è®¡ç®—是å¦æˆåŠŸçš„标志的函数ä¸å—此惯例的é™åˆ¶ã€‚通常
他们通过返回一些正常值范围之外的结果æ¥è¡¨ç¤ºå‡ºé”™ã€‚典型的例å­æ˜¯è¿”回指针的函数,
他们使用 NULL 或者 ERR_PTR 机制æ¥æŠ¥å‘Šé”™è¯¯ã€‚
+17) 使用布尔类型
+----------------
+
+Linux内核布尔(bool)类型是C99 _Bool类型的别å。布尔值åªèƒ½ä¸º0或1,而对布尔的
+éšå¼æˆ–显å¼è½¬æ¢å°†è‡ªåŠ¨å°†å€¼è½¬æ¢ä¸ºtrue或false。在使用布尔类型时 **ä¸éœ€è¦** 构造,
+它会消除一类错误。
+
+使用布尔值时,应使用trueå’Œfalse定义,而ä¸æ˜¯1å’Œ0。
-17) ä¸è¦é‡æ–°å‘明内核å®
-------------------------------
+布尔函数返回类型和堆栈å˜é‡æ€»æ˜¯å¯ä»¥åœ¨é€‚当的时候使用。鼓励使用布尔æ¥æ高å¯è¯»æ€§ï¼Œ
+并且布尔值在存储时通常比“intâ€æ›´å¥½ã€‚
+
+如果缓存行布局或值的大å°å¾ˆé‡è¦ï¼Œè¯·ä¸è¦ä½¿ç”¨å¸ƒå°”,因为其大å°å’Œå¯¹é½æ–¹å¼æ ¹æ®ç¼–译
+的体系结构而ä¸åŒã€‚针对对é½å’Œå¤§å°è¿›è¡Œä¼˜åŒ–的结构体ä¸åº”使用布尔。
+
+如果一个结构体有多个true/false值,请考虑将它们åˆå¹¶ä¸ºå…·æœ‰1比特æˆå‘˜çš„ä½åŸŸï¼Œæˆ–使
+用适当的固定宽度类型,如u8。
+
+类似地,对于函数å‚数,多个true/false值å¯ä»¥åˆå¹¶ä¸ºå•ä¸ªæŒ‰ä½çš„“标志â€å‚数,如果调
+用点具有裸true/false常é‡ï¼Œâ€œæ ‡å¿—â€å‚数通常是更具å¯è¯»æ€§çš„替代方法。
+
+总之,在结构体和å‚数中有é™åœ°ä½¿ç”¨å¸ƒå°”å¯ä»¥æ高å¯è¯»æ€§ã€‚
+
+18) ä¸è¦é‡æ–°å‘明内核å®
+----------------------
头文件 include/linux/kernel.h 包å«äº†ä¸€äº›å®ï¼Œä½ åº”该使用它们,而ä¸è¦è‡ªå·±å†™ä¸€äº›
它们的å˜ç§ã€‚比如,如果你需è¦è®¡ç®—一个数组的长度,使用这个å®
@@ -832,11 +940,11 @@ inline gcc 也å¯ä»¥è‡ªåŠ¨ä½¿å…¶å†…è”。而且其他用户å¯èƒ½ä¼šè¦æ±‚移除
在你的代ç é‡Œè‡ªå·±é‡æ–°å®šä¹‰ã€‚
-18) 编辑器模å¼è¡Œå’Œå…¶ä»–需è¦ç½—嗦的事情
---------------------------------------------------
+19) 编辑器模å¼è¡Œå’Œå…¶ä»–需è¦ç½—嗦的事情
+------------------------------------
有一些编辑器å¯ä»¥è§£é‡ŠåµŒå…¥åœ¨æºæ–‡ä»¶é‡Œçš„由一些特殊标记标明的é…置信æ¯ã€‚比如,emacs
-能够解释被标记æˆè¿™æ ·çš„行:
+能够解æžè¢«æ ‡è®°æˆè¿™æ ·çš„行:
.. code-block:: c
@@ -852,7 +960,7 @@ inline gcc 也å¯ä»¥è‡ªåŠ¨ä½¿å…¶å†…è”。而且其他用户å¯èƒ½ä¼šè¦æ±‚移除
End:
*/
-Vim 能够解释这样的标记:
+Vim 能够解æžè¿™æ ·çš„标记:
.. code-block:: c
@@ -863,8 +971,8 @@ Vim 能够解释这样的标记:
的模å¼ï¼Œæˆ–者使用其他å¯ä»¥äº§ç”Ÿæ­£ç¡®çš„缩进的巧妙方法。
-19) 内è”汇编
-------------------------------
+20) 内è”汇编
+------------
在特定架构的代ç ä¸­ï¼Œä½ å¯èƒ½éœ€è¦å†…è”汇编与 CPU 和平å°ç›¸å…³åŠŸèƒ½è¿žæŽ¥ã€‚需è¦è¿™ä¹ˆåšæ—¶
å°±ä¸è¦çŠ¹è±«ã€‚然而,当 C å¯ä»¥å®Œæˆå·¥ä½œæ—¶ï¼Œä¸è¦å¹³ç™½æ— æ•…地使用内è”汇编。在å¯èƒ½çš„情
@@ -880,8 +988,8 @@ Vim 能够解释这样的标记:
移除了。你ä¸å¿…总是这样åšï¼Œå°½ç®¡ï¼Œè¿™ä¸å¿…è¦çš„举动会é™åˆ¶ä¼˜åŒ–。
在写一个包å«å¤šæ¡æŒ‡ä»¤çš„å•ä¸ªå†…è”汇编语å¥æ—¶ï¼ŒæŠŠæ¯æ¡æŒ‡ä»¤ç”¨å¼•å·åˆ†å‰²è€Œä¸”å„å ä¸€è¡Œï¼Œ
-除了最åŽä¸€æ¡æŒ‡ä»¤å¤–,在æ¯ä¸ªæŒ‡ä»¤ç»“尾加上 \n\t,让汇编输出时å¯ä»¥æ­£ç¡®åœ°ç¼©è¿›ä¸‹ä¸€æ¡
-指令:
+除了最åŽä¸€æ¡æŒ‡ä»¤å¤–,在æ¯ä¸ªæŒ‡ä»¤ç»“尾加上 ``\n\t`` ,让汇编输出时å¯ä»¥æ­£ç¡®åœ°ç¼©è¿›
+下一æ¡æŒ‡ä»¤ï¼š
.. code-block:: c
@@ -890,10 +998,10 @@ Vim 能够解释这样的标记:
: /* outputs */ : /* inputs */ : /* clobbers */);
-20) æ¡ä»¶ç¼–译
-------------------------------
+21) æ¡ä»¶ç¼–译
+------------
-åªè¦å¯èƒ½ï¼Œå°±ä¸è¦åœ¨ .c 文件里é¢ä½¿ç”¨é¢„处ç†æ¡ä»¶ (#if, #ifdef);这样åšè®©ä»£ç æ›´éš¾
+åªè¦å¯èƒ½ï¼Œå°±ä¸è¦åœ¨ .c 文件里é¢ä½¿ç”¨é¢„处ç†æ¡ä»¶ (#if, #ifdef);这样åšä¼šè®©ä»£ç æ›´éš¾
阅读并且更难去跟踪逻辑。替代方案是,在头文件中用预处ç†æ¡ä»¶æ供给那些 .c 文件
使用,å†ç»™ #else æ供一个空桩 (no-op stub) 版本,然åŽåœ¨ .c 文件内无æ¡ä»¶åœ°è°ƒç”¨
那些 (定义在头文件内的) 函数。这样åšï¼Œç¼–译器会é¿å…为桩函数 (stub) 的调用生æˆ
@@ -904,8 +1012,8 @@ Vim 能够解释这样的标记:
æ¡ä»¶åˆ°è¿™ä¸ªè¾…助函数内。
如果你有一个在特定é…置中,å¯èƒ½å˜æˆæœªä½¿ç”¨çš„函数或å˜é‡ï¼Œç¼–译器会警告它定义了但
-未使用,把它标记为 __maybe_unused 而ä¸æ˜¯å°†å®ƒåŒ…å«åœ¨ä¸€ä¸ªé¢„处ç†æ¡ä»¶ä¸­ã€‚(然而,如
-果一个函数或å˜é‡æ€»æ˜¯æœªä½¿ç”¨ï¼Œå°±ç›´æŽ¥åˆ é™¤å®ƒã€‚)
+未使用,请把它标记为 __maybe_unused 而ä¸æ˜¯å°†å®ƒåŒ…å«åœ¨ä¸€ä¸ªé¢„处ç†æ¡ä»¶ä¸­ã€‚(然而,
+如果一个函数或å˜é‡æ€»æ˜¯æœªä½¿ç”¨ï¼Œå°±ç›´æŽ¥åˆ é™¤å®ƒã€‚)
在代ç ä¸­ï¼Œå°½å¯èƒ½åœ°ä½¿ç”¨ IS_ENABLED å®æ¥è½¬åŒ–æŸä¸ª Kconfig 标记为 C 的布尔
表达å¼ï¼Œå¹¶åœ¨ä¸€èˆ¬çš„ C æ¡ä»¶ä¸­ä½¿ç”¨å®ƒï¼š
@@ -931,23 +1039,45 @@ Vim 能够解释这样的标记:
#endif /* CONFIG_SOMETHING */
-附录 I) å‚考
--------------------
+附录 I) å‚考资料
+----------------
-The C Programming Language, 第二版
+The C Programming Language, 2nd Edition
作者:Brian W. Kernighan 和 Denni M. Ritchie.
Prentice Hall, Inc., 1988.
-ISBN 0-13-110362-8 (软皮), 0-13-110370-9 (硬皮).
+ISBN 0-13-110362-8 (平装), 0-13-110370-9 (精装).
+
+.. note::
+
+ 《C程åºè®¾è®¡è¯­è¨€ï¼ˆç¬¬2版)》
+ 作者:[美] Brian W. Kernighan / [美] Dennis M. Ritchie
+ 译者:å¾å®æ–‡ / æŽå¿— / 尤晋元(审校)
+ 出版社:机械工业出版社,2019
+ ISBN:9787111617945
The Practice of Programming
作者:Brian W. Kernighan 和 Rob Pike.
Addison-Wesley, Inc., 1999.
ISBN 0-201-61586-X.
+.. note::
+
+ 《程åºè®¾è®¡å®žè·µã€‹
+ 作者:[美] Brian W. Kernighan / [美] Rob Pike
+ 出版社:机械工业出版社,2005
+ ISBN:9787111091578
+
+ 《程åºè®¾è®¡å®žè·µã€‹
+ 作者:[美] Brian W. Kernighan / Rob Pike
+ 译者:裘宗燕
+ 出版社:机械工业出版社,2000
+ ISBN:9787111075738
+
GNU 手册 - éµå¾ª K&R 标准和此文本 - cpp, gcc, gcc internals and indent,
都å¯ä»¥ä»Ž https://www.gnu.org/manual/ 找到
WG14 是 C 语言的国际标准化工作组,URL: http://www.open-std.org/JTC1/SC22/WG14/
-Kernel process/coding-style.rst,作者 greg@kroah.com å‘表于 OLS 2002:
+内核文档 Documentation/process/coding-style.rst,
+作者 greg@kroah.com å‘表于 OLS 2002:
http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/
diff --git a/Documentation/translations/zh_CN/process/email-clients.rst b/Documentation/translations/zh_CN/process/email-clients.rst
index 102023651118..34d51cdadc7b 100644
--- a/Documentation/translations/zh_CN/process/email-clients.rst
+++ b/Documentation/translations/zh_CN/process/email-clients.rst
@@ -1,17 +1,20 @@
-.. _cn_email_clients:
+.. SPDX-License-Identifier: GPL-2.0-or-later
.. include:: ../disclaimer-zh_CN.rst
-:Original: :ref:`Documentation/process/email-clients.rst <email_clients>`
+.. _cn_email_clients:
-译者::
+:Original: Documentation/process/email-clients.rst
- 中文版维护者: è´¾å¨å¨ Harry Wei <harryxiyou@gmail.com>
- 中文版翻译者: è´¾å¨å¨ Harry Wei <harryxiyou@gmail.com>
- 时奎亮 Alex Shi <alex.shi@linux.alibaba.com>
- 中文版校译者: Yinglin Luan <synmyth@gmail.com>
- Xiaochen Wang <wangxiaochen0@gmail.com>
- yaxinsn <yaxinsn@163.com>
+:译者:
+ - è´¾å¨å¨ Harry Wei <harryxiyou@gmail.com>
+ - 时奎亮 Alex Shi <alexs@kernel.org>
+ - å´æƒ³æˆ Wu XiangCheng <bobwxc@email.cn>
+
+:校译:
+ - Yinglin Luan <synmyth@gmail.com>
+ - Xiaochen Wang <wangxiaochen0@gmail.com>
+ - yaxinsn <yaxinsn@163.com>
Linux邮件客户端é…置信æ¯
=======================
@@ -27,12 +30,17 @@ Git
改日志。如果工作正常,å†å°†è¡¥ä¸å‘é€åˆ°ç›¸åº”的邮件列表。
-普通é…ç½®
+通用é…ç½®
--------
+
Linux内核补ä¸æ˜¯é€šè¿‡é‚®ä»¶è¢«æ交的,最好把补ä¸ä½œä¸ºé‚®ä»¶ä½“的内嵌文本。有些维护者
接收附件,但是附件的内容格å¼åº”该是"text/plain"。然而,附件一般是ä¸èµžæˆçš„,
因为这会使补ä¸çš„引用部分在评论过程中å˜çš„很困难。
+åŒæ—¶ä¹Ÿå¼ºçƒˆå»ºè®®åœ¨è¡¥ä¸æˆ–其他邮件的正文中使用纯文本格å¼ã€‚https://useplaintext.email
+有助于了解如何é…置你喜欢的邮件客户端,并在您还没有首选的情况下列出一些推èçš„
+客户端。
+
用æ¥å‘é€Linux内核补ä¸çš„邮件客户端在å‘é€è¡¥ä¸æ—¶åº”该处于文本的原始状æ€ã€‚例如,
他们ä¸èƒ½æ”¹å˜æˆ–者删除制表符或者空格,甚至是在æ¯ä¸€è¡Œçš„开头或者结尾。
@@ -40,17 +48,17 @@ Linux内核补ä¸æ˜¯é€šè¿‡é‚®ä»¶è¢«æ交的,最好把补ä¸ä½œä¸ºé‚®ä»¶ä½“çš„
ä¸è¦è®©ä½ çš„邮件客户端进行自动æ¢è¡Œã€‚这样也会破åä½ çš„è¡¥ä¸ã€‚
-邮件客户端ä¸èƒ½æ”¹å˜æ–‡æœ¬çš„字符集编ç æ–¹å¼ã€‚è¦å‘é€çš„è¡¥ä¸åªèƒ½æ˜¯ASCII或者UTF-8ç¼–ç æ–¹å¼ï¼Œ
-如果你使用UTF-8ç¼–ç æ–¹å¼å‘é€é‚®ä»¶ï¼Œé‚£ä¹ˆä½ å°†ä¼šé¿å…一些å¯èƒ½å‘生的字符集问题。
+邮件客户端ä¸èƒ½æ”¹å˜æ–‡æœ¬çš„字符集编ç æ–¹å¼ã€‚è¦å‘é€çš„è¡¥ä¸åªèƒ½æ˜¯ASCII或者UTF-8ç¼–ç 
+æ–¹å¼ï¼Œå¦‚果你使用UTF-8ç¼–ç æ–¹å¼å‘é€é‚®ä»¶ï¼Œé‚£ä¹ˆä½ å°†ä¼šé¿å…一些å¯èƒ½å‘生的字符集问题。
-邮件客户端应该形æˆå¹¶ä¸”ä¿æŒ References: 或者 In-Reply-To: 标题,那么
-邮件è¯é¢˜å°±ä¸ä¼šä¸­æ–­ã€‚
+邮件客户端应该生æˆå¹¶ä¸”ä¿æŒâ€œReferences:â€æˆ–者“In-Reply-To:â€é‚®ä»¶å¤´ï¼Œè¿™æ ·é‚®ä»¶ä¼šè¯
+å°±ä¸ä¼šä¸­æ–­ã€‚
-å¤åˆ¶ç²˜å¸–(或者剪贴粘帖)通常ä¸èƒ½ç”¨äºŽè¡¥ä¸ï¼Œå› ä¸ºåˆ¶è¡¨ç¬¦ä¼šè½¬æ¢ä¸ºç©ºæ ¼ã€‚使用xclipboard, xclip
-或者xcutsel也许å¯ä»¥ï¼Œä½†æ˜¯æœ€å¥½æµ‹è¯•ä¸€ä¸‹æˆ–者é¿å…使用å¤åˆ¶ç²˜å¸–。
+å¤åˆ¶ç²˜å¸–(或者剪贴粘帖)通常ä¸èƒ½ç”¨äºŽè¡¥ä¸ï¼Œå› ä¸ºåˆ¶è¡¨ç¬¦ä¼šè½¬æ¢ä¸ºç©ºæ ¼ã€‚使用xclipboard,
+xclip或者xcutsel也许å¯ä»¥ï¼Œä½†æ˜¯æœ€å¥½æµ‹è¯•ä¸€ä¸‹æˆ–者é¿å…使用å¤åˆ¶ç²˜å¸–。
-ä¸è¦åœ¨ä½¿ç”¨PGP/GPGç½²å的邮件中包å«è¡¥ä¸ã€‚这样会使得很多脚本ä¸èƒ½è¯»å–和适用于你的补ä¸ã€‚
-(这个问题应该是å¯ä»¥ä¿®å¤çš„)
+ä¸è¦åœ¨ä½¿ç”¨PGP/GPGç­¾å的邮件中包å«è¡¥ä¸ã€‚这样会使得很多脚本ä¸èƒ½è¯»å–和适用于你的
+è¡¥ä¸ã€‚(这个问题应该是å¯ä»¥ä¿®å¤çš„)
在给内核邮件列表å‘é€è¡¥ä¸ä¹‹å‰ï¼Œç»™è‡ªå·±å‘é€ä¸€ä¸ªè¡¥ä¸æ˜¯ä¸ªä¸é”™çš„主æ„,ä¿å­˜æŽ¥æ”¶åˆ°çš„
邮件,将补ä¸ç”¨'patch'命令打上,如果æˆåŠŸäº†ï¼Œå†ç»™å†…核邮件列表å‘é€ã€‚
@@ -58,98 +66,133 @@ Linux内核补ä¸æ˜¯é€šè¿‡é‚®ä»¶è¢«æ交的,最好把补ä¸ä½œä¸ºé‚®ä»¶ä½“çš„
一些邮件客户端æ示
------------------
+
这里给出一些详细的MUAé…ç½®æ示,å¯ä»¥ç”¨äºŽç»™Linux内核å‘é€è¡¥ä¸ã€‚这些并ä¸æ„味是
所有的软件包é…置总结。
说明:
-TUI = 以文本为基础的用户接å£
-GUI = 图形界é¢ç”¨æˆ·æŽ¥å£
+
+- TUI = 以文本为基础的用户接å£
+- GUI = 图形界é¢ç”¨æˆ·æŽ¥å£
Alpine (TUI)
-~~~~~~~~~~~~
+************
é…置选项:
-在"Sending Preferences"部分:
-- "Do Not Send Flowed Text"必须开å¯
-- "Strip Whitespace Before Sending"必须关闭
+在 :menuselection:`Sending Preferences` èœå•ï¼š
+
+- :menuselection:`Do Not Send Flowed Text` 必须开å¯
+- :menuselection:`Strip Whitespace Before Sending` 必须关闭
+
+当写邮件时,光标应该放在补ä¸ä¼šå‡ºçŽ°çš„地方,然åŽæŒ‰ä¸‹ :kbd:`CTRL-R` 组åˆé”®ï¼Œä½¿æŒ‡
+定的补ä¸æ–‡ä»¶åµŒå…¥åˆ°é‚®ä»¶ä¸­ã€‚
+
+Claws Mail (GUI)
+****************
+
+å¯ä»¥ç”¨ï¼Œæœ‰äººç”¨å®ƒæˆåŠŸåœ°å‘过补ä¸ã€‚
-当写邮件时,光标应该放在补ä¸ä¼šå‡ºçŽ°çš„地方,然åŽæŒ‰ä¸‹CTRL-R组åˆé”®ï¼Œä½¿æŒ‡å®šçš„
-è¡¥ä¸æ–‡ä»¶åµŒå…¥åˆ°é‚®ä»¶ä¸­ã€‚
+用 :menuselection:`Message-->Insert File` (:kbd:`CTRL-I`) 或外置编辑器æ’入补ä¸ã€‚
+
+è‹¥è¦åœ¨Claws编辑窗å£é‡ä¿®æ”¹æ’入的补ä¸ï¼Œéœ€å…³é—­
+:menuselection:`Configuration-->Preferences-->Compose-->Wrapping`
+的 `Auto wrapping` 。
Evolution (GUI)
-~~~~~~~~~~~~~~~
+***************
-一些开å‘者æˆåŠŸçš„使用它å‘é€è¡¥ä¸
+一些开å‘者æˆåŠŸçš„使用它å‘é€è¡¥ä¸ã€‚
-当选择邮件选项:Preformat
- 从Format->Heading->Preformatted (Ctrl-7)或者工具æ 
+撰写邮件时:
+从 :menuselection:`æ ¼å¼-->段è½æ ·å¼-->预格å¼åŒ–` (:kbd:`CTRL-7`)
+或工具æ é€‰æ‹© :menuselection:`预格å¼åŒ–` ï¼›
然åŽä½¿ç”¨ï¼š
- Insert->Text File... (Alt-n x)æ’入补ä¸æ–‡ä»¶ã€‚
+:menuselection:`æ’å…¥-->文本文件...` (:kbd:`ALT-N x`) æ’入补ä¸æ–‡ä»¶ã€‚
-你还å¯ä»¥"diff -Nru old.c new.c | xclip",选择Preformat,然åŽä½¿ç”¨ä¸­é—´é”®è¿›è¡Œç²˜å¸–。
+你还å¯ä»¥ ``diff -Nru old.c new.c | xclip`` ,选择 :menuselection:`预格å¼åŒ–` ,
+然åŽä½¿ç”¨é¼ æ ‡ä¸­é”®è¿›è¡Œç²˜å¸–。
Kmail (GUI)
-~~~~~~~~~~~
+***********
一些开å‘者æˆåŠŸçš„使用它å‘é€è¡¥ä¸ã€‚
-默认设置ä¸ä¸ºHTMLæ ¼å¼æ˜¯åˆé€‚çš„ï¼›ä¸è¦å¯ç”¨å®ƒã€‚
+默认撰写设置ç¦ç”¨HTMLæ ¼å¼æ˜¯åˆé€‚çš„ï¼›ä¸è¦å¯ç”¨å®ƒã€‚
-当书写一å°é‚®ä»¶çš„时候,在选项下é¢ä¸è¦é€‰æ‹©è‡ªåŠ¨æ¢è¡Œã€‚唯一的缺点就是你在邮件中输入的任何文本
-都ä¸ä¼šè¢«è‡ªåŠ¨æ¢è¡Œï¼Œå› æ­¤ä½ å¿…须在å‘é€è¡¥ä¸ä¹‹å‰æ‰‹åŠ¨æ¢è¡Œã€‚最简å•çš„方法就是å¯ç”¨è‡ªåŠ¨æ¢è¡Œæ¥ä¹¦å†™é‚®ä»¶ï¼Œ
-然åŽæŠŠå®ƒä¿å­˜ä¸ºè‰ç¨¿ã€‚一旦你在è‰ç¨¿ä¸­å†æ¬¡æ‰“开它,它已ç»å…¨éƒ¨è‡ªåŠ¨æ¢è¡Œäº†ï¼Œé‚£ä¹ˆä½ çš„邮件虽然没有
-选择自动æ¢è¡Œï¼Œä½†æ˜¯è¿˜ä¸ä¼šå¤±åŽ»å·²æœ‰çš„自动æ¢è¡Œã€‚
+当书写一å°é‚®ä»¶çš„时候,在选项下é¢ä¸è¦é€‰æ‹©è‡ªåŠ¨æ¢è¡Œã€‚唯一的缺点就是你在邮件中输
+入的任何文本都ä¸ä¼šè¢«è‡ªåŠ¨æ¢è¡Œï¼Œå› æ­¤ä½ å¿…须在å‘é€è¡¥ä¸ä¹‹å‰æ‰‹åŠ¨æ¢è¡Œã€‚最简å•çš„方法
+就是å¯ç”¨è‡ªåŠ¨æ¢è¡Œæ¥ä¹¦å†™é‚®ä»¶ï¼Œç„¶åŽæŠŠå®ƒä¿å­˜ä¸ºè‰ç¨¿ã€‚一旦你在è‰ç¨¿ä¸­å†æ¬¡æ‰“开它,它
+å·²ç»å…¨éƒ¨è‡ªåŠ¨æ¢è¡Œäº†ï¼Œé‚£ä¹ˆä½ çš„邮件虽然没有选择自动æ¢è¡Œï¼Œä½†æ˜¯è¿˜ä¸ä¼šå¤±åŽ»å·²æœ‰çš„自
+动æ¢è¡Œã€‚
-在邮件的底部,æ’入补ä¸ä¹‹å‰ï¼Œæ”¾ä¸Šå¸¸ç”¨çš„è¡¥ä¸å®šç•Œç¬¦ï¼šä¸‰ä¸ªè¿žå­—å·(---)。
+在邮件的底部,æ’入补ä¸ä¹‹å‰ï¼Œæ”¾ä¸Šå¸¸ç”¨çš„è¡¥ä¸å®šç•Œç¬¦ï¼šä¸‰ä¸ªè¿žå­—符(``---``)。
-然åŽåœ¨"Message"èœå•æ¡ç›®ï¼Œé€‰æ‹©æ’入文件,接ç€é€‰å–ä½ çš„è¡¥ä¸æ–‡ä»¶ã€‚还有一个é¢å¤–的选项,你å¯ä»¥
-通过它é…置你的邮件建立工具æ èœå•ï¼Œè¿˜å¯ä»¥å¸¦ä¸Š"insert file"图标。
+然åŽåœ¨ :menuselection:`信件` èœå•ï¼Œé€‰æ‹© :menuselection:`æ’入文本文件` ,接
+ç€é€‰å–ä½ çš„è¡¥ä¸æ–‡ä»¶ã€‚还有一个é¢å¤–的选项,你å¯ä»¥é€šè¿‡å®ƒé…置你的创建新邮件工具æ ï¼Œ
+加上 :menuselection:`æ’入文本文件` 图标。
-ä½ å¯ä»¥å®‰å…¨åœ°é€šè¿‡GPG标记附件,但是内嵌补ä¸æœ€å¥½ä¸è¦ä½¿ç”¨GPG标记它们。作为内嵌文本的签å‘è¡¥ä¸ï¼Œ
-当从GPG中æå–7ä½ç¼–ç æ—¶ä¼šä½¿ä»–们å˜çš„更加å¤æ‚。
+将编辑器窗å£æ‹‰åˆ°è¶³å¤Ÿå®½é¿å…折行。对于KMail 1.13.5 (KDE 4.5.4),它会在å‘é€é‚®ä»¶
+时对编辑器窗å£ä¸­æ˜¾ç¤ºæŠ˜è¡Œçš„地方自动æ¢è¡Œã€‚在选项èœå•ä¸­å–消自动æ¢è¡Œä»ä¸èƒ½è§£å†³ã€‚
+因此,如果你的补ä¸ä¸­æœ‰éžå¸¸é•¿çš„行,必须在å‘é€ä¹‹å‰æŠŠç¼–辑器窗å£æ‹‰å¾—éžå¸¸å®½ã€‚
+å‚è§ï¼šhttps://bugs.kde.org/show_bug.cgi?id=174034
-如果你éžè¦ä»¥é™„件的形å¼å‘é€è¡¥ä¸ï¼Œé‚£ä¹ˆå°±å³é”®ç‚¹å‡»é™„件,然åŽé€‰ä¸­å±žæ€§ï¼Œçªå‡º"Suggest automatic
-display",这样内嵌附件更容易让读者看到。
+ä½ å¯ä»¥å®‰å…¨åœ°ç”¨GPGç­¾å附件,但是内嵌补ä¸æœ€å¥½ä¸è¦ä½¿ç”¨GPGç­¾å它们。作为内嵌文本
+æ’入的签åè¡¥ä¸å°†ä½¿å…¶éš¾ä»¥ä»Ž7-bitç¼–ç ä¸­æå–。
-当你è¦ä¿å­˜å°†è¦å‘é€çš„内嵌文本补ä¸ï¼Œä½ å¯ä»¥ä»Žæ¶ˆæ¯åˆ—表窗格选择包å«è¡¥ä¸çš„邮件,然åŽå³å‡»é€‰æ‹©
-"save as"。你å¯ä»¥ä½¿ç”¨ä¸€ä¸ªæ²¡æœ‰æ›´æ”¹çš„包å«è¡¥ä¸çš„邮件,如果它是以正确的形å¼ç»„æˆã€‚当你正真在它
-自己的窗å£ä¹‹ä¸‹å¯Ÿçœ‹ï¼Œé‚£æ—¶æ²¡æœ‰é€‰é¡¹å¯ä»¥ä¿å­˜é‚®ä»¶--å·²ç»æœ‰ä¸€ä¸ªè¿™æ ·çš„bug被汇报到了kmailçš„bugzilla
-并且希望这将会被处ç†ã€‚邮件是以åªé’ˆå¯¹æŸä¸ªç”¨æˆ·å¯è¯»å†™çš„æƒé™è¢«ä¿å­˜çš„,所以如果你想把邮件å¤åˆ¶åˆ°å…¶ä»–地方,
-ä½ ä¸å¾—ä¸æŠŠä»–们的æƒé™æ”¹ä¸ºç»„或者整体å¯è¯»ã€‚
+如果你éžè¦ä»¥é™„件的形å¼å‘é€è¡¥ä¸ï¼Œé‚£ä¹ˆå°±å³é”®ç‚¹å‡»é™„件,然åŽé€‰æ‹©
+:menuselection:`属性` ,打开 :menuselection:`建议自动显示` ,使附件内è”更容
+易让读者看到。
+
+当你è¦ä¿å­˜å°†è¦å‘é€çš„内嵌文本补ä¸ï¼Œä½ å¯ä»¥ä»Žæ¶ˆæ¯åˆ—表窗格选择包å«è¡¥ä¸çš„邮件,然
+åŽå³é”®é€‰æ‹© :menuselection:`å¦å­˜ä¸º` 。如果整个电å­é‚®ä»¶çš„组æˆæ­£ç¡®ï¼Œæ‚¨å¯ç›´æŽ¥å°†
+其作为补ä¸ä½¿ç”¨ã€‚电å­é‚®ä»¶ä»¥å½“å‰ç”¨æˆ·å¯è¯»å†™æƒé™ä¿å­˜ï¼Œå› æ­¤æ‚¨å¿…é¡» ``chmod`` ,以
+使其在å¤åˆ¶åˆ°åˆ«å¤„时用户组和其他人å¯è¯»ã€‚
Lotus Notes (GUI)
-~~~~~~~~~~~~~~~~~
+*****************
ä¸è¦ä½¿ç”¨å®ƒã€‚
+IBM Verse (Web GUI)
+*******************
+
+åŒä¸Šæ¡ã€‚
+
Mutt (TUI)
-~~~~~~~~~~
+**********
+
+很多Linuxå¼€å‘人员使用mutt客户端,这è¯æ˜Žå®ƒè‚¯å®šå·¥ä½œå¾—éžå¸¸æ¼‚亮。
-很多Linuxå¼€å‘人员使用mutt客户端,所以è¯æ˜Žå®ƒè‚¯å®šå·¥ä½œçš„éžå¸¸æ¼‚亮。
+Muttä¸è‡ªå¸¦ç¼–辑器,所以ä¸ç®¡ä½ ä½¿ç”¨ä»€ä¹ˆç¼–辑器,ä¸è‡ªåŠ¨æ–­è¡Œå°±è¡Œã€‚大多数编辑器都有
+:menuselection:`æ’入文件` 选项,它å¯ä»¥åœ¨ä¸æ”¹å˜æ–‡ä»¶å†…容的情况下æ’入文件。
-Muttä¸è‡ªå¸¦ç¼–辑器,所以ä¸ç®¡ä½ ä½¿ç”¨ä»€ä¹ˆç¼–辑器都ä¸åº”该带有自动断行。大多数编辑器都带有
-一个"insert file"选项,它å¯ä»¥é€šè¿‡ä¸æ”¹å˜æ–‡ä»¶å†…容的方å¼æ’入文件。
+用 ``vim`` 作为mutt的编辑器::
-'vim'作为mutt的编辑器:
set editor="vi"
- 如果使用xclip,敲入以下命令
+如果使用xclip,敲入以下命令::
+
:set paste
- 按中键之å‰æˆ–者shift-insert或者使用
+
+然åŽå†æŒ‰ä¸­é”®æˆ–者shift-insert或者使用::
+
:r filename
-如果想è¦æŠŠè¡¥ä¸ä½œä¸ºå†…嵌文本。
-(a)ttach工作的很好,ä¸å¸¦æœ‰"set paste"。
+把补ä¸æ’入为内嵌文本。
+在未设置 ``set paste`` 时(a)ttach工作的很好。
ä½ å¯ä»¥é€šè¿‡ ``git format-patch`` 生æˆè¡¥ä¸ï¼Œç„¶åŽç”¨ Muttå‘é€å®ƒä»¬::
- $ mutt -H 0001-some-bug-fix.patch
+ $ mutt -H 0001-some-bug-fix.patch
é…置选项:
+
它应该以默认设置的形å¼å·¥ä½œã€‚
-然而,把"send_charset"设置为"us-ascii::utf-8"也是一个ä¸é”™çš„主æ„。
+然而,把 ``send_charset`` 设置一下也是一个ä¸é”™çš„主æ„::
+
+ set send_charset="us-ascii:utf-8"
Mutt 是高度å¯é…置的。 这里是个使用mutt通过 Gmail å‘é€çš„è¡¥ä¸çš„最å°é…ç½®::
@@ -178,71 +221,107 @@ Mutt 是高度å¯é…置的。 这里是个使用mutt通过 Gmail å‘é€çš„è¡¥ä¸
set from = "username@gmail.com"
set use_from = yes
-Mutt文档å«æœ‰æ›´å¤šä¿¡æ¯:
+Mutt文档å«æœ‰æ›´å¤šä¿¡æ¯ï¼š
- http://dev.mutt.org/trac/wiki/UseCases/Gmail
+ https://gitlab.com/muttmua/mutt/-/wikis/UseCases/Gmail
- http://dev.mutt.org/doc/manual.html
+ http://www.mutt.org/doc/manual/
Pine (TUI)
-~~~~~~~~~~
+**********
Pine过去有一些空格删å‡é—®é¢˜ï¼Œä½†æ˜¯è¿™äº›çŽ°åœ¨åº”该都被修å¤äº†ã€‚
-如果å¯ä»¥ï¼Œè¯·ä½¿ç”¨alpine(pine的继承者)
+如果å¯ä»¥ï¼Œè¯·ä½¿ç”¨alpine(pine的继承者)。
é…置选项:
-- 最近的版本需è¦æ¶ˆé™¤æµç¨‹æ–‡æœ¬
-- "no-strip-whitespace-before-send"选项也是需è¦çš„。
+
+- æœ€è¿‘çš„ç‰ˆæœ¬éœ€è¦ ``quell-flowed-text``
+- ``no-strip-whitespace-before-send`` 选项也是需è¦çš„。
Sylpheed (GUI)
-~~~~~~~~~~~~~~
+**************
- 内嵌文本å¯ä»¥å¾ˆå¥½çš„工作(或者使用附件)。
- å…许使用外部的编辑器。
-- 对于目录较多时éžå¸¸æ…¢ã€‚
+- 收件箱较多时éžå¸¸æ…¢ã€‚
- 如果通过non-SSL连接,无法使用TLS SMTP授æƒã€‚
-- 在组æˆçª—å£ä¸­æœ‰ä¸€ä¸ªå¾ˆæœ‰ç”¨çš„ruler bar。
-- 给地å€æœ¬ä¸­æ·»åŠ åœ°å€å°±ä¸ä¼šæ­£ç¡®çš„了解显示å。
+- 撰写窗å£çš„标尺很有用。
+- 将地å€æ·»åŠ åˆ°é€šè®¯ç°¿æ—¶æ— æ³•æ­£ç¡®ç†è§£æ˜¾ç¤ºçš„å称。
Thunderbird (GUI)
-~~~~~~~~~~~~~~~~~
+*****************
+
+Thunderbird是Outlook的克隆版本,它很容易æŸå文本,但也有一些方法强制修正。
+
+在完æˆä¿®æ”¹åŽï¼ˆåŒ…括安装扩展),您需è¦é‡æ–°å¯åŠ¨Thunderbird。
+
+- å…许使用外部编辑器:
+
+ 使用Thunderbirdå‘è¡¥ä¸æœ€ç®€å•çš„方法是使用扩展æ¥æ‰“开您最喜欢的外部编辑器。
+
+ 下é¢æ˜¯ä¸€äº›èƒ½å¤Ÿåšåˆ°è¿™ä¸€ç‚¹çš„扩展样例。
+
+ - “External Editor Revivedâ€
+
+ https://github.com/Frederick888/external-editor-revived
+
+ https://addons.thunderbird.net/en-GB/thunderbird/addon/external-editor-revived/
+
+ 它需è¦å®‰è£…“本地消æ¯ä¸»æœºï¼ˆnative messaging host)â€ã€‚
+ å‚è§ä»¥ä¸‹æ–‡æ¡£:
+ https://github.com/Frederick888/external-editor-revived/wiki
+
+ - “External Editorâ€
+
+ https://github.com/exteditor/exteditor
+
+ 下载并安装此扩展,然åŽæ‰“å¼€ :menuselection:`新建消æ¯` 窗å£, 用
+ :menuselection:`查看-->工具æ -->自定义...` 给它增加一个按钮,直接点击此
+ 按钮å³å¯ä½¿ç”¨å¤–置编辑器。
+
+ 请注æ„,“External Editorâ€è¦æ±‚你的编辑器ä¸èƒ½fork,æ¢å¥è¯è¯´ï¼Œç¼–辑器必须在
+ 关闭å‰ä¸è¿”回。你å¯èƒ½éœ€è¦ä¼ é€’é¢å¤–çš„å‚数或修改编辑器设置。最值得注æ„的是,
+ 如果您使用的是gvim,那么您必须将 :menuselection:`external editor` 设置的
+ 编辑器字段设置为 ``/usr/bin/gvim --nofork"`` (å‡è®¾å¯æ‰§è¡Œæ–‡ä»¶åœ¨
+ ``/usr/bin`` ),以传递 ``-f`` å‚数。如果您正在使用其他编辑器,请阅读其
+ 手册了解如何处ç†ã€‚
-默认情况下,thunderbird很容易æŸå文本,但是还有一些方法å¯ä»¥å¼ºåˆ¶å®ƒå˜å¾—更好。
+è‹¥è¦ä¿®æ­£å†…部编辑器,请执行以下æ“作:
-- 在用户å¸å·è®¾ç½®é‡Œï¼Œç»„æˆå’Œå¯»å€ï¼Œä¸è¦é€‰æ‹©"Compose messages in HTML format"。
+- 修改你的Thunderbird设置,ä¸è¦ä½¿ç”¨ ``format=flowed`` ï¼
+ 回到主窗å£ï¼ŒæŒ‰ç…§
+ :menuselection:`主èœå•-->首选项-->常规-->é…置编辑器...`
+ 打开Thunderbirdçš„é…置编辑器。
-- 编辑你的Thunderbirdé…置设置æ¥ä½¿å®ƒä¸è¦æ‹†è¡Œä½¿ç”¨ï¼šuser_pref("mailnews.wraplength", 0);
+ - 将 ``mailnews.send_plaintext_flowed`` 设为 ``false``
-- 编辑你的Thunderbirdé…置设置,使它ä¸è¦ä½¿ç”¨"format=flowed"æ ¼å¼ï¼šuser_pref("mailnews.
- send_plaintext_flowed", false);
+ - 将 ``mailnews.wraplength`` 从 ``72`` 改为 ``0``
-- 你需è¦ä½¿Thunderbirdå˜ä¸ºé¢„先格å¼æ–¹å¼ï¼š
- 如果默认情况下你书写的是HTMLæ ¼å¼ï¼Œé‚£ä¸æ˜¯å¾ˆéš¾ã€‚仅仅从标题æ çš„下拉框中选择"Preformat"æ ¼å¼ã€‚
- 如果默认情况下你书写的是文本格å¼ï¼Œä½ ä¸å¾—把它改为HTMLæ ¼å¼ï¼ˆä»…仅作为一次性的)æ¥ä¹¦å†™æ–°çš„消æ¯ï¼Œ
- 然åŽå¼ºåˆ¶ä½¿å®ƒå›žåˆ°æ–‡æœ¬æ ¼å¼ï¼Œå¦åˆ™å®ƒå°±ä¼šæ‹†è¡Œã€‚è¦å®žçŽ°å®ƒï¼Œåœ¨å†™ä¿¡çš„图标上使用shifté”®æ¥ä½¿å®ƒå˜ä¸ºHTML
- æ ¼å¼ï¼Œç„¶åŽæ ‡é¢˜æ çš„下拉框中选择"Preformat"æ ¼å¼ã€‚
+- ä¸è¦å†™HTML邮件ï¼
+ 回到主窗å£ï¼Œæ‰“å¼€
+ :menuselection:`主èœå•-->账户设置-->ä½ çš„@邮件.地å€-->通讯录/编写&地å€ç°¿` ,
+ 关掉 ``以HTMLæ ¼å¼ç¼–写消æ¯`` 。
-- å…许使用外部的编辑器:
- 针对Thunderbird打补ä¸æœ€ç®€å•çš„方法就是使用一个"external editor"扩展,然åŽä½¿ç”¨ä½ æœ€å–œæ¬¢çš„
- $EDITORæ¥è¯»å–或者åˆå¹¶è¡¥ä¸åˆ°æ–‡æœ¬ä¸­ã€‚è¦å®žçŽ°å®ƒï¼Œå¯ä»¥ä¸‹è½½å¹¶ä¸”安装这个扩展,然åŽæ·»åŠ ä¸€ä¸ªä½¿ç”¨å®ƒçš„
- 按键View->Toolbars->Customize...最åŽå½“你书写信æ¯çš„时候仅仅点击它就å¯ä»¥äº†ã€‚
+- åªç”¨çº¯æ–‡æœ¬æ ¼å¼æŸ¥çœ‹é‚®ä»¶ï¼
+ 回到主窗å£ï¼Œ :menuselection:`主èœå•-->查看-->消æ¯ä½“为-->纯文本` ï¼
TkRat (GUI)
-~~~~~~~~~~~
+***********
å¯ä»¥ä½¿ç”¨å®ƒã€‚使用"Insert file..."或者外部的编辑器。
Gmail (Web GUI)
-~~~~~~~~~~~~~~~
+***************
ä¸è¦ä½¿ç”¨å®ƒå‘é€è¡¥ä¸ã€‚
Gmail网页客户端自动地把制表符转æ¢ä¸ºç©ºæ ¼ã€‚
-虽然制表符转æ¢ä¸ºç©ºæ ¼é—®é¢˜å¯ä»¥è¢«å¤–部编辑器解决,åŒæ—¶å®ƒè¿˜ä¼šä½¿ç”¨å›žè½¦æ¢è¡ŒæŠŠæ¯è¡Œæ‹†åˆ†ä¸º78个字符。
+虽然制表符转æ¢ä¸ºç©ºæ ¼é—®é¢˜å¯ä»¥è¢«å¤–部编辑器解决,但它åŒæ—¶è¿˜ä¼šä½¿ç”¨å›žè½¦æ¢è¡ŒæŠŠæ¯è¡Œ
+拆分为78个字符。
-å¦ä¸€ä¸ªé—®é¢˜æ˜¯Gmail还会把任何ä¸æ˜¯ASCII的字符的信æ¯æ”¹ä¸ºbase64ç¼–ç ã€‚它把东西å˜çš„åƒæ¬§æ´²äººçš„å字。
+å¦ä¸€ä¸ªé—®é¢˜æ˜¯Gmail还会把任何å«æœ‰éžASCII的字符的消æ¯æ”¹ç”¨base64ç¼–ç ï¼Œå¦‚欧洲人的
+å字。
- ###
diff --git a/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst b/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst
index 88273ebe7823..cf5f1fca3d92 100644
--- a/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst
+++ b/Documentation/translations/zh_CN/process/embargoed-hardware-issues.rst
@@ -174,7 +174,7 @@ CVE分é…
============= ========================================================
ARM
- AMD Tom Lendacky <tom.lendacky@amd.com>
+ AMD Tom Lendacky <thomas.lendacky@amd.com>
IBM
Intel Tony Luck <tony.luck@intel.com>
Qualcomm Trilok Soni <tsoni@codeaurora.org>
diff --git a/Documentation/translations/zh_CN/process/howto.rst b/Documentation/translations/zh_CN/process/howto.rst
index 1334cdb32a3c..1455190dc087 100644
--- a/Documentation/translations/zh_CN/process/howto.rst
+++ b/Documentation/translations/zh_CN/process/howto.rst
@@ -96,7 +96,6 @@ Linux内核代ç ä¸­åŒ…å«æœ‰å¤§é‡çš„文档。这些文档对于学习如何与
的代ç ã€‚
:ref:`Documentation/translations/zh_CN/process/submitting-patches.rst <cn_submittingpatches>`
- :ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
这两份文档明确æ述如何创建和å‘é€è¡¥ä¸ï¼Œå…¶ä¸­åŒ…括(但ä¸ä»…é™äºŽ):
- 邮件内容
diff --git a/Documentation/translations/zh_CN/process/index.rst b/Documentation/translations/zh_CN/process/index.rst
index 39e9c88fbaa6..a683dbea0c83 100644
--- a/Documentation/translations/zh_CN/process/index.rst
+++ b/Documentation/translations/zh_CN/process/index.rst
@@ -40,7 +40,6 @@
.. toctree::
:maxdepth: 1
- submitting-drivers
submit-checklist
stable-api-nonsense
stable-kernel-rules
diff --git a/Documentation/translations/zh_CN/process/magic-number.rst b/Documentation/translations/zh_CN/process/magic-number.rst
index 42f0635ca70a..0617ce125e12 100644
--- a/Documentation/translations/zh_CN/process/magic-number.rst
+++ b/Documentation/translations/zh_CN/process/magic-number.rst
@@ -58,87 +58,17 @@ Linux 魔术数
魔术数å æ•°å­— 结构 文件
===================== ================ ======================== ==========================================
PG_MAGIC 'P' pg_{read,write}_hdr ``include/linux/pg.h``
-CMAGIC 0x0111 user ``include/linux/a.out.h``
-MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h``
-HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c``
APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c``
-DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c``
-DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c``
FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h``
-FF_MAGIC 0x4646 fc_info ``drivers/net/iph5526_novram.c``
-PTY_MAGIC 0x5001 ``drivers/char/pty.c``
-PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h``
-SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h``
SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h``
-STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
-SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
-AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
-MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
-TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
-USB_SERIAL_MAGIC 0x6702 usb_serial ``drivers/usb/serial/usb-serial.h``
-FULL_DUPLEX_MAGIC 0x6969 ``drivers/net/ethernet/dec/tulip/de2104x.c``
-USB_BLUETOOTH_MAGIC 0x6d02 usb_bluetooth ``drivers/usb/class/bluetty.c``
-RFCOMM_TTY_MAGIC 0x6d02 ``net/bluetooth/rfcomm/tty.c``
-USB_SERIAL_PORT_MAGIC 0x7301 usb_serial_port ``drivers/usb/serial/usb-serial.h``
-CG_MAGIC 0x00090255 ufs_cylinder_group ``include/linux/ufs_fs.h``
-LSEMAGIC 0x05091998 lse ``drivers/fc4/fc.c``
-GDTIOCTL_MAGIC 0x06030f07 gdth_iowr_str ``drivers/scsi/gdth_ioctl.h``
-RIEBL_MAGIC 0x09051990 ``drivers/net/atarilance.c``
-NBD_REQUEST_MAGIC 0x12560953 nbd_request ``include/linux/nbd.h``
-RED_MAGIC2 0x170fc2a5 (any) ``mm/slab.c``
BAYCOM_MAGIC 0x19730510 baycom_state ``drivers/net/baycom_epp.c``
-ISDN_X25IFACE_MAGIC 0x1e75a2b9 isdn_x25iface_proto_data ``drivers/isdn/isdn_x25iface.h``
-ECP_MAGIC 0x21504345 cdkecpsig ``include/linux/cdk.h``
-LSOMAGIC 0x27091997 lso ``drivers/fc4/fc.c``
-LSMAGIC 0x2a3b4d2a ls ``drivers/fc4/fc.c``
-WANPIPE_MAGIC 0x414C4453 sdla_{dump,exec} ``include/linux/wanpipe.h``
-CS_CARD_MAGIC 0x43525553 cs_card ``sound/oss/cs46xx.c``
-LABELCL_MAGIC 0x4857434c labelcl_info_s ``include/asm/ia64/sn/labelcl.h``
-ISDN_ASYNC_MAGIC 0x49344C01 modem_info ``include/linux/isdn.h``
-CTC_ASYNC_MAGIC 0x49344C01 ctc_tty_info ``drivers/s390/net/ctctty.c``
-ISDN_NET_MAGIC 0x49344C02 isdn_net_local_s ``drivers/isdn/i4l/isdn_net_lib.h``
-SAVEKMSG_MAGIC2 0x4B4D5347 savekmsg ``arch/*/amiga/config.c``
-CS_STATE_MAGIC 0x4c4f4749 cs_state ``sound/oss/cs46xx.c``
-SLAB_C_MAGIC 0x4f17a36d kmem_cache ``mm/slab.c``
-COW_MAGIC 0x4f4f4f4d cow_header_v1 ``arch/um/drivers/ubd_user.c``
-I810_CARD_MAGIC 0x5072696E i810_card ``sound/oss/i810_audio.c``
-TRIDENT_CARD_MAGIC 0x5072696E trident_card ``sound/oss/trident.c``
-ROUTER_MAGIC 0x524d4157 wan_device [in ``wanrouter.h`` pre 3.9]
-SAVEKMSG_MAGIC1 0x53415645 savekmsg ``arch/*/amiga/config.c``
-GDA_MAGIC 0x58464552 gda ``arch/mips/include/asm/sn/gda.h``
-RED_MAGIC1 0x5a2cf071 (any) ``mm/slab.c``
-EEPROM_MAGIC_VALUE 0x5ab478d2 lanai_dev ``drivers/atm/lanai.c``
HDLCDRV_MAGIC 0x5ac6e778 hdlcdrv_state ``include/linux/hdlcdrv.h``
-PCXX_MAGIC 0x5c6df104 channel ``drivers/char/pcxx.h``
KV_MAGIC 0x5f4b565f kernel_vars_s ``arch/mips/include/asm/sn/klkernvars.h``
-I810_STATE_MAGIC 0x63657373 i810_state ``sound/oss/i810_audio.c``
-TRIDENT_STATE_MAGIC 0x63657373 trient_state ``sound/oss/trident.c``
-M3_CARD_MAGIC 0x646e6f50 m3_card ``sound/oss/maestro3.c``
-FW_HEADER_MAGIC 0x65726F66 fw_header ``drivers/atm/fore200e.h``
-SLOT_MAGIC 0x67267321 slot ``drivers/hotplug/cpqphp.h``
-SLOT_MAGIC 0x67267322 slot ``drivers/hotplug/acpiphp.h``
-LO_MAGIC 0x68797548 nbd_device ``include/linux/nbd.h``
-M3_STATE_MAGIC 0x734d724d m3_state ``sound/oss/maestro3.c``
-VMALLOC_MAGIC 0x87654320 snd_alloc_track ``sound/core/memory.c``
-KMALLOC_MAGIC 0x87654321 snd_alloc_track ``sound/core/memory.c``
-PWC_MAGIC 0x89DC10AB pwc_device ``drivers/usb/media/pwc.h``
-NBD_REPLY_MAGIC 0x96744668 nbd_reply ``include/linux/nbd.h``
-ENI155_MAGIC 0xa54b872d midway_eprom ``drivers/atm/eni.h``
CODA_MAGIC 0xC0DAC0DA coda_file_info ``fs/coda/coda_fs_i.h``
-DPMEM_MAGIC 0xc0ffee11 gdt_pci_sram ``drivers/scsi/gdth.h``
YAM_MAGIC 0xF10A7654 yam_port ``drivers/net/hamradio/yam.c``
CCB_MAGIC 0xf2691ad2 ccb ``drivers/scsi/ncr53c8xx.c``
QUEUE_MAGIC_FREE 0xf7e1c9a3 queue_entry ``drivers/scsi/arm/queue.c``
QUEUE_MAGIC_USED 0xf7e1cc33 queue_entry ``drivers/scsi/arm/queue.c``
-HTB_CMAGIC 0xFEFAFEF1 htb_class ``net/sched/sch_htb.c``
NMI_MAGIC 0x48414d4d455201 nmi_s ``arch/mips/include/asm/sn/nmi.h``
===================== ================ ======================== ==========================================
-
-
-请注æ„,在声音记忆管ç†ä¸­ä»ç„¶æœ‰ä¸€äº›ç‰¹æ®Šçš„为æ¯ä¸ªé©±åŠ¨å®šä¹‰çš„魔术值。查看include/sound/sndmagic.hæ¥èŽ·å–他们完整的列表信æ¯ã€‚很多OSS声音驱动拥有自己从声å¡PCI ID构建的魔术值-他们也没有被列在这里。
-
-IrDAå­ç³»ç»Ÿä¹Ÿä½¿ç”¨äº†å¤§é‡çš„自己的魔术值,查看include/net/irda/irda.hæ¥èŽ·å–他们完整的信æ¯ã€‚
-
-HFS是å¦å¤–一个比较大的使用魔术值的文件系统-ä½ å¯ä»¥åœ¨fs/hfs/hfs.h中找到他们。
diff --git a/Documentation/translations/zh_CN/process/submit-checklist.rst b/Documentation/translations/zh_CN/process/submit-checklist.rst
index a64858d321fc..3d6ee21c74ae 100644
--- a/Documentation/translations/zh_CN/process/submit-checklist.rst
+++ b/Documentation/translations/zh_CN/process/submit-checklist.rst
@@ -1,105 +1,111 @@
.. include:: ../disclaimer-zh_CN.rst
-:Original: :ref:`Documentation/process/submit-checklist.rst <submitchecklist>`
-:Translator: Alex Shi <alex.shi@linux.alibaba.com>
+:Original: Documentation/process/submit-checklist.rst
+:Translator:
+ - Alex Shi <alexs@kernel.org>
+ - Wu XiangCheng <bobwxc@email.cn>
.. _cn_submitchecklist:
-Linux内核补ä¸æ交清å•
-~~~~~~~~~~~~~~~~~~~~~
+Linux内核补ä¸æ交检查å•
+~~~~~~~~~~~~~~~~~~~~~~~
如果开å‘人员希望看到他们的内核补ä¸æ交更快地被接å—,那么他们应该åšä¸€äº›åŸºæœ¬
的事情。
-这些都是在
-:ref:`Documentation/translations/zh_CN/process/submitting-patches.rst <cn_submittingpatches>`
+这些都是在 Documentation/translations/zh_CN/process/submitting-patches.rst
和其他有关æ交Linux内核补ä¸çš„文档中æ供的。
-1) 如果使用工具,则包括定义/声明该工具的文件。ä¸è¦ä¾èµ–于其他头文件拉入您使用
+1) 如果使用工具,则包括定义/声明该工具的文件。ä¸è¦ä¾èµ–其他头文件æ¥å¼•å…¥æ‚¨ä½¿ç”¨
的头文件。
2) 干净的编译:
- a) 使用适用或修改的 ``CONFIG`` 选项 ``=y``ã€``=m`` å’Œ ``=n`` 。没有GCC
+ a) 使用åˆé€‚çš„ ``CONFIG`` 选项 ``=y``ã€``=m`` å’Œ ``=n`` 。没有 ``gcc``
警告/错误,没有链接器警告/错误。
- b) 通过allnoconfigã€allmodconfig
+ b) 通过 ``allnoconfig`` 〠``allmodconfig``
c) 使用 ``O=builddir`` æ—¶å¯ä»¥æˆåŠŸç¼–译
-3) 通过使用本地交å‰ç¼–译工具或其他一些构建场在多个CPU体系结构上构建。
+ d) 任何 Doucmentation/ 下的å˜æ›´éƒ½èƒ½æˆåŠŸæž„建且ä¸å¼•å…¥æ–°è­¦å‘Š/错误。
+ 用 ``make htmldocs`` 或 ``make pdfdocs`` 检验构建情况并修å¤é—®é¢˜ã€‚
+
+3) 通过使用本地交å‰ç¼–译工具或其他一些构建设施在多个CPU体系结构上构建。
4) PPC64是一ç§å¾ˆå¥½çš„交å‰ç¼–译检查体系结构,因为它倾å‘于对64ä½çš„数使用无符å·
长整型。
-5) 如下所述 :ref:`Documentation/translations/zh_CN/process/coding-style.rst <cn_codingstyle>`.
- 检查您的补ä¸æ˜¯å¦ä¸ºå¸¸è§„æ ·å¼ã€‚在æ交( ``scripts/check patch.pl`` )之å‰ï¼Œ
- 使用补ä¸æ ·å¼æ£€æŸ¥å™¨æ£€æŸ¥æ˜¯å¦æœ‰è½»å¾®çš„冲çªã€‚您应该能够处ç†æ‚¨çš„è¡¥ä¸ä¸­å­˜åœ¨çš„所有
+5) 按 Documentation/translations/zh_CN/process/coding-style.rst 所述检查您的
+ è¡¥ä¸æ˜¯å¦ä¸ºå¸¸è§„æ ·å¼ã€‚在æ交之å‰ä½¿ç”¨è¡¥ä¸æ ·å¼æ£€æŸ¥å™¨ ``scripts/checkpatch.pl``
+ 检查是å¦æœ‰è½»å¾®çš„冲çªã€‚您应该能够处ç†æ‚¨çš„è¡¥ä¸ä¸­å­˜åœ¨çš„所有
è¿è§„行为。
-6) 任何新的或修改过的 ``CONFIG`` 选项都ä¸ä¼šå¼„è„é…ç½®èœå•ï¼Œå¹¶é»˜è®¤ä¸ºå…³é—­ï¼Œé™¤éž
- å®ƒä»¬ç¬¦åˆ ``Documentation/kbuild/kconfig-language.rst`` 中记录的异常æ¡ä»¶,
- èœå•å±žæ€§ï¼šé»˜è®¤å€¼.
+6) 任何新的或修改过的 ``CONFIG`` 选项都ä¸åº”æžä¹±é…ç½®èœå•ï¼Œå¹¶é»˜è®¤ä¸ºå…³é—­ï¼Œé™¤éž
+ å®ƒä»¬ç¬¦åˆ ``Documentation/kbuild/kconfig-language.rst`` èœå•å±žæ€§ï¼šé»˜è®¤å€¼ä¸­
+ 记录的例外æ¡ä»¶ã€‚
7) 所有新的 ``kconfig`` 选项都有帮助文本。
8) 已仔细审查了相关的 ``Kconfig`` 组åˆã€‚这很难用测试æ¥çº æ­£â€”—脑力在这里是有
回报的。
-9) 用 sparse 检查干净。
+9) 通过 sparse 清查。
+ (å‚è§ Documentation/translations/zh_CN/dev-tools/sparse.rst )
10) 使用 ``make checkstack`` å’Œ ``make namespacecheck`` 并修å¤ä»–们å‘现的任何
问题。
.. note::
- ``checkstack`` 并没有明确指出问题,但是任何一个在堆栈上使用超过512
+ ``checkstack`` 并ä¸ä¼šæ˜Žç¡®æŒ‡å‡ºé—®é¢˜ï¼Œä½†æ˜¯ä»»ä½•ä¸€ä¸ªåœ¨å †æ ˆä¸Šä½¿ç”¨è¶…过512
字节的函数都å¯ä»¥è¿›è¡Œæ›´æ”¹ã€‚
-11) 包括 :ref:`kernel-doc <kernel_doc>` 内核文档以记录全局内核API。(é™æ€å‡½æ•°
- ä¸éœ€è¦ï¼Œä½†ä¹Ÿå¯ä»¥ã€‚)使用 ``make htmldocs`` 或 ``make pdfdocs`` 检查
- :ref:`kernel-doc <kernel_doc>` 并修å¤ä»»ä½•é—®é¢˜ã€‚
+11) 包括 :ref:`kernel-doc <kernel_doc_zh>` 内核文档以记录全局内核API。(é™æ€
+ 函数ä¸éœ€è¦ï¼Œä½†ä¹Ÿå¯ä»¥ã€‚)使用 ``make htmldocs`` 或 ``make pdfdocs`` 检查
+ :ref:`kernel-doc <kernel_doc_zh>` 并修å¤ä»»ä½•é—®é¢˜ã€‚
-12) 通过以下选项åŒæ—¶å¯ç”¨çš„测试 ``CONFIG_PREEMPT``, ``CONFIG_DEBUG_PREEMPT``,
+12) 通过以下选项åŒæ—¶å¯ç”¨çš„测试: ``CONFIG_PREEMPT``, ``CONFIG_DEBUG_PREEMPT``,
``CONFIG_DEBUG_SLAB``, ``CONFIG_DEBUG_PAGEALLOC``, ``CONFIG_DEBUG_MUTEXES``,
``CONFIG_DEBUG_SPINLOCK``, ``CONFIG_DEBUG_ATOMIC_SLEEP``,
- ``CONFIG_PROVE_RCU`` and ``CONFIG_DEBUG_OBJECTS_RCU_HEAD``
-
-13) å·²ç»è¿‡æž„建和è¿è¡Œæ—¶æµ‹è¯•ï¼ŒåŒ…括有或没有 ``CONFIG_SMP``, ``CONFIG_PREEMPT``.
+ ``CONFIG_PROVE_RCU`` 和 ``CONFIG_DEBUG_OBJECTS_RCU_HEAD`` 。
-14) 如果补ä¸ç¨‹åºå½±å“IO/ç£ç›˜ç­‰ï¼šä½¿ç”¨æˆ–ä¸ä½¿ç”¨ ``CONFIG_LBDAF`` 进行测试。
+13) 在 ``CONFIG_SMP``, ``CONFIG_PREEMPT`` å¼€å¯å’Œå…³é—­çš„情况下都进行构建和è¿è¡Œ
+ 时测试。
-15) 所有代ç è·¯å¾„都已在å¯ç”¨æ‰€æœ‰lockdep功能的情况下è¿è¡Œã€‚
+14) 所有代ç è·¯å¾„都已在å¯ç”¨æ‰€æœ‰æ­»é”检测(lockdep)功能的情况下è¿è¡Œã€‚
-16) 所有新的/procæ¡ç›®éƒ½è®°å½•åœ¨ ``Documentation/``
+15) 所有新的 ``/proc`` æ¡ç›®éƒ½è®°å½•åœ¨ ``Documentation/``
-17) 所有新的内核引导å‚数都记录在
+16) 所有新的内核引导å‚数都记录在
Documentation/admin-guide/kernel-parameters.rst 中。
-18) 所有新的模å—å‚数都记录在 ``MODULE_PARM_DESC()``
+17) 所有新的模å—å‚数都记录在 ``MODULE_PARM_DESC()``
-19) 所有新的用户空间接å£éƒ½è®°å½•åœ¨ ``Documentation/ABI/`` 中。有关详细信æ¯ï¼Œ
+18) 所有新的用户空间接å£éƒ½è®°å½•åœ¨ ``Documentation/ABI/`` 中。有关详细信æ¯ï¼Œ
请å‚阅 ``Documentation/ABI/README`` 。更改用户空间接å£çš„è¡¥ä¸åº”该抄é€
linux-api@vger.kernel.org。
-20) 已通过至少注入slabå’Œpage分é…失败进行检查。请å‚阅 ``Documentation/fault-injection/``
+19) 已通过至少注入slabå’Œpage分é…失败进行检查。请å‚阅 ``Documentation/fault-injection/`` 。
如果新代ç æ˜¯å®žè´¨æ€§çš„,那么添加å­ç³»ç»Ÿç‰¹å®šçš„故障注入å¯èƒ½æ˜¯åˆé€‚的。
-21) 新添加的代ç å·²ç»ç”¨ ``gcc -W`` 编译(使用 ``make EXTRA-CFLAGS=-W`` )。这
+20) 新添加的代ç å·²ç»ç”¨ ``gcc -W`` 编译(使用 ``make EXTRA-CFLAGS=-W`` )。这
将产生大é‡å™ªå£°ï¼Œä½†å¯¹äºŽæŸ¥æ‰¾è¯¸å¦‚“警告:有符å·å’Œæ— ç¬¦å·ä¹‹é—´çš„比较â€ä¹‹ç±»çš„错误
很有用。
-22) 在它被åˆå¹¶åˆ°-mmè¡¥ä¸é›†ä¸­ä¹‹åŽè¿›è¡Œæµ‹è¯•ï¼Œä»¥ç¡®ä¿å®ƒä»ç„¶ä¸Žæ‰€æœ‰å…¶ä»–排队的补ä¸ä»¥
+21) 在它被åˆå¹¶åˆ°-mmè¡¥ä¸é›†ä¸­ä¹‹åŽè¿›è¡Œæµ‹è¯•ï¼Œä»¥ç¡®ä¿å®ƒä»ç„¶ä¸Žæ‰€æœ‰å…¶ä»–排队的补ä¸ä»¥
åŠVMã€VFS和其他å­ç³»ç»Ÿä¸­çš„å„ç§æ›´æ”¹ä¸€èµ·å·¥ä½œã€‚
-23) 所有内存å±éšœä¾‹å¦‚ ``barrier()``, ``rmb()``, ``wmb()`` 都需è¦æºä»£ç ä¸­çš„注
+22) 所有内存å±éšœï¼ˆä¾‹å¦‚ ``barrier()``, ``rmb()``, ``wmb()`` )都需è¦æºä»£ç æ³¨
释æ¥è§£é‡Šå®ƒä»¬æ­£åœ¨æ‰§è¡Œçš„æ“作åŠå…¶åŽŸå› çš„逻辑。
-24) 如果补ä¸æ·»åŠ äº†ä»»ä½•ioctl,那么也è¦æ›´æ–° ``Documentation/userspace-api/ioctl/ioctl-number.rst``
+23) 如果补ä¸æ·»åŠ äº†ä»»ä½•ioctl,那么也è¦æ›´æ–°
+ ``Documentation/userspace-api/ioctl/ioctl-number.rst`` 。
-25) 如果修改åŽçš„æºä»£ç ä¾èµ–或使用与以下 ``Kconfig`` 符å·ç›¸å…³çš„任何内核API或
+24) 如果修改åŽçš„æºä»£ç ä¾èµ–或使用与以下 ``Kconfig`` 符å·ç›¸å…³çš„任何内核API或
功能,则在ç¦ç”¨ç›¸å…³ ``Kconfig`` 符å·å’Œ/或 ``=m`` (如果该选项å¯ç”¨ï¼‰çš„情况
下测试以下多个构建[并éžæ‰€æœ‰è¿™äº›éƒ½åŒæ—¶å­˜åœ¨ï¼Œåªæ˜¯å®ƒä»¬çš„å„ç§/éšæœºç»„åˆ]:
- ``CONFIG_SMP``, ``CONFIG_SYSFS``, ``CONFIG_PROC_FS``, ``CONFIG_INPUT``, ``CONFIG_PCI``, ``CONFIG_BLOCK``, ``CONFIG_PM``, ``CONFIG_MAGIC_SYSRQ``,
- ``CONFIG_NET``, ``CONFIG_INET=n`` (但是åŽè€…ä¼´éš ``CONFIG_NET=y``).
+ ``CONFIG_SMP``, ``CONFIG_SYSFS``, ``CONFIG_PROC_FS``, ``CONFIG_INPUT``,
+ ``CONFIG_PCI``, ``CONFIG_BLOCK``, ``CONFIG_PM``, ``CONFIG_MAGIC_SYSRQ``,
+ ``CONFIG_NET``, ``CONFIG_INET=n`` (但是最åŽä¸€ä¸ªéœ€è¦ ``CONFIG_NET=y`` )。
diff --git a/Documentation/translations/zh_CN/process/submitting-drivers.rst b/Documentation/translations/zh_CN/process/submitting-drivers.rst
deleted file mode 100644
index 98341e7cd812..000000000000
--- a/Documentation/translations/zh_CN/process/submitting-drivers.rst
+++ /dev/null
@@ -1,160 +0,0 @@
-.. _cn_submittingdrivers:
-
-.. include:: ../disclaimer-zh_CN.rst
-
-:Original: :ref:`Documentation/process/submitting-drivers.rst
- <submittingdrivers>`
-
-如果想评论或更新本文的内容,请直接è”系原文档的维护者。如果你使用英文
-交æµæœ‰å›°éš¾çš„è¯ï¼Œä¹Ÿå¯ä»¥å‘中文版维护者求助。如果本翻译更新ä¸åŠæ—¶æˆ–者翻
-译存在问题,请è”系中文版维护者::
-
- 中文版维护者: æŽé˜³ Li Yang <leoyang.li@nxp.com>
- 中文版翻译者: æŽé˜³ Li Yang <leoyang.li@nxp.com>
- 中文版校译者: é™ˆç¦ Maggie Chen <chenqi@beyondsoft.com>
- çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com>
- å¼ å· Zhang Wei <wezhang@outlook.com>
-
-å¦‚ä½•å‘ Linux 内核æ交驱动程åº
-=============================
-
-这篇文档将会解释如何å‘ä¸åŒçš„内核æºç æ ‘æ交设备驱动程åºã€‚请注æ„,如果你感
-兴趣的是显å¡é©±åŠ¨ç¨‹åºï¼Œä½ ä¹Ÿè®¸åº”该访问 XFree86 项目(https://www.xfree86.org/)
-å’Œï¼æˆ– X.org 项目 (https://x.org)。
-
-å¦è¯·å‚阅 Documentation/translations/zh_CN/process/submitting-patches.rst 文档。
-
-
-分é…设备å·
-----------
-
-å—设备和字符设备的主设备å·ä¸Žä»Žè®¾å¤‡å·æ˜¯ç”± Linux 命åç¼–å·åˆ†é…æƒå¨ LANANA(
-现在是 Torben Mathiasen)负责分é…。申请的网å€æ˜¯ https://www.lanana.org/。
-å³ä½¿ä¸å‡†å¤‡æ交到主æµå†…核的设备驱动也需è¦åœ¨è¿™é‡Œåˆ†é…设备å·ã€‚有关详细信æ¯ï¼Œ
-请å‚阅 Documentation/admin-guide/devices.rst。
-
-如果你使用的ä¸æ˜¯å·²ç»åˆ†é…的设备å·ï¼Œé‚£ä¹ˆå½“ä½ æ交设备驱动的时候,它将会被强
-制分é…一个新的设备å·ï¼Œå³ä¾¿è¿™ä¸ªè®¾å¤‡å·å’Œä½ ä¹‹å‰å‘给客户的截然ä¸åŒã€‚
-
-设备驱动的æ交对象
-------------------
-
-Linux 2.0:
- 此内核æºç æ ‘ä¸æŽ¥å—新的驱动程åºã€‚
-
-Linux 2.2:
- 此内核æºç æ ‘ä¸æŽ¥å—新的驱动程åºã€‚
-
-Linux 2.4:
- 如果所属的代ç é¢†åŸŸåœ¨å†…核的 MAINTAINERS 文件中列有一个总维护者,
- 那么请将驱动程åºæ交给他。如果此维护者没有回应或者你找ä¸åˆ°æ°å½“çš„
- 维护者,那么请è”ç³» Willy Tarreau <w@1wt.eu>。
-
-Linux 2.6:
- 除了éµå¾ªå’Œ 2.4 版内核åŒæ ·çš„规则外,你还需è¦åœ¨ linux-kernel 邮件
- 列表上跟踪最新的 API å˜åŒ–ã€‚å‘ Linux 2.6 内核æ交驱动的顶级è”系人
- 是 Andrew Morton <akpm@linux-foundation.org>。
-
-决定设备驱动能å¦è¢«æŽ¥å—çš„æ¡ä»¶
-----------------------------
-
-许å¯ï¼š 代ç å¿…须使用 GNU 通用公开许å¯è¯ (GPL) æ交给 Linux,但是
- 我们并ä¸è¦æ±‚ GPL 是唯一的许å¯ã€‚你或许会希望åŒæ—¶ä½¿ç”¨å¤šç§
- 许å¯è¯å‘布,如果希望驱动程åºå¯ä»¥è¢«å…¶ä»–å¼€æºç¤¾åŒºï¼ˆæ¯”如BSD)
- 使用。请å‚考 include/linux/module.h 文件中所列出的å¯è¢«
- 接å—共存的许å¯ã€‚
-
-版æƒï¼š 版æƒæ‰€æœ‰è€…å¿…é¡»åŒæ„使用 GPL 许å¯ã€‚最好æ交者和版æƒæ‰€æœ‰è€…
- 是相åŒä¸ªäººæˆ–实体。å¦åˆ™ï¼Œå¿…需列出授æƒä½¿ç”¨ GPL 的版æƒæ‰€æœ‰
- 人或实体,以备验è¯ä¹‹éœ€ã€‚
-
-接å£ï¼š 如果你的驱动程åºä½¿ç”¨çŽ°æˆçš„接å£å¹¶ä¸”和其他åŒç±»çš„驱动程åºè¡Œ
- 为相似,而ä¸æ˜¯åŽ»å‘明无谓的新接å£ï¼Œé‚£ä¹ˆå®ƒå°†ä¼šæ›´å®¹æ˜“被接å—。
- 如果你需è¦ä¸€ä¸ª Linux å’Œ NT 的通用驱动接å£ï¼Œé‚£ä¹ˆè¯·åœ¨ç”¨
- 户空间实现它。
-
-代ç ï¼š 请使用 Documentation/process/coding-style.rst 中所æè¿°çš„ Linux 代ç é£Ž
- 格。如果你的æŸäº›ä»£ç æ®µï¼ˆä¾‹å¦‚那些与 Windows 驱动程åºåŒ…å…±
- 享的代ç æ®µï¼‰éœ€è¦ä½¿ç”¨å…¶ä»–æ ¼å¼ï¼Œè€Œä½ å´åªå¸Œæœ›ç»´æŠ¤ä¸€ä»½ä»£ç ï¼Œ
- 那么请将它们很好地区分出æ¥ï¼Œå¹¶ä¸”注明原因。
-
-å¯ç§»æ¤æ€§ï¼š 请注æ„,指针并ä¸æ°¸è¿œæ˜¯ 32 ä½çš„,ä¸æ˜¯æ‰€æœ‰çš„计算机都使用å°
- å°¾æ¨¡å¼ (little endian) 存储数æ®ï¼Œä¸æ˜¯æ‰€æœ‰çš„人都拥有浮点
- å•å…ƒï¼Œä¸è¦éšä¾¿åœ¨ä½ çš„驱动程åºé‡ŒåµŒå…¥ x86 汇编指令。åªèƒ½åœ¨
- x86 上è¿è¡Œçš„驱动程åºä¸€èˆ¬æ˜¯ä¸å—欢迎的。虽然你å¯èƒ½åªæœ‰ x86
- 硬件,很难测试驱动程åºåœ¨å…¶ä»–å¹³å°ä¸Šæ˜¯å¦å¯ç”¨ï¼Œä½†æ˜¯ç¡®ä¿ä»£ç 
- å¯ä»¥è¢«è½»æ¾åœ°ç§»æ¤å´æ˜¯å¾ˆç®€å•çš„。
-
-清晰度: åšåˆ°æ‰€æœ‰äººéƒ½èƒ½ä¿®è¡¥è¿™ä¸ªé©±åŠ¨ç¨‹åºå°†ä¼šå¾ˆæœ‰å¥½å¤„,因为这样你将
- 会直接收到修å¤çš„è¡¥ä¸è€Œä¸æ˜¯ bug 报告。如果你æ交一个试图
- éšè—硬件工作机ç†çš„驱动程åºï¼Œé‚£ä¹ˆå®ƒå°†ä¼šè¢«æ‰”进废纸篓。
-
-电æºç®¡ç†ï¼š 因为 Linux 正在被很多移动设备和桌é¢ç³»ç»Ÿä½¿ç”¨ï¼Œæ‰€ä»¥ä½ çš„驱
- 动程åºä¹Ÿå¾ˆæœ‰å¯èƒ½è¢«ä½¿ç”¨åœ¨è¿™äº›è®¾å¤‡ä¸Šã€‚它应该支æŒæœ€åŸºæœ¬çš„电
- æºç®¡ç†ï¼Œå³åœ¨éœ€è¦çš„情况下实现系统级休眠和唤醒è¦ç”¨åˆ°çš„
- .suspend å’Œ .resume 函数。你应该检查你的驱动程åºæ˜¯å¦èƒ½æ­£
- 确地处ç†ä¼‘眠与唤醒,如果实在无法确认,请至少把 .suspend
- 函数定义æˆè¿”回 -ENOSYS(功能未实现)错误。你还应该å°è¯•ç¡®
- ä¿ä½ çš„驱动在什么都ä¸å¹²çš„情况下将耗电é™åˆ°æœ€ä½Žã€‚è¦èŽ·å¾—驱动
- 程åºæµ‹è¯•çš„指导,请å‚阅
- Documentation/power/drivers-testing.rst。有关驱动程åºç”µ
- æºç®¡ç†é—®é¢˜ç›¸å¯¹å…¨é¢çš„概述,请å‚阅
- Documentation/driver-api/pm/devices.rst。
-
-管ç†ï¼š 如果一个驱动程åºçš„作者还在进行有效的维护,那么通常除了那
- 些明显正确且ä¸éœ€è¦ä»»ä½•æ£€æŸ¥çš„è¡¥ä¸ä»¥å¤–,其他所有的补ä¸éƒ½ä¼š
- 被转å‘给作者。如果你希望æˆä¸ºé©±åŠ¨ç¨‹åºçš„è”系人和更新者,最
- 好在代ç æ³¨é‡Šä¸­å†™æ˜Žå¹¶ä¸”在 MAINTAINERS 文件中加入这个驱动
- 程åºçš„æ¡ç›®ã€‚
-
-ä¸å½±å“设备驱动能å¦è¢«æŽ¥å—çš„æ¡ä»¶
-------------------------------
-
-供应商: 由硬件供应商æ¥ç»´æŠ¤é©±åŠ¨ç¨‹åºé€šå¸¸æ˜¯ä¸€ä»¶å¥½äº‹ã€‚ä¸è¿‡ï¼Œå¦‚æžœæºç 
- 树里已ç»æœ‰å…¶ä»–人æ供了å¯ç¨³å®šå·¥ä½œçš„驱动程åºï¼Œé‚£ä¹ˆè¯·ä¸è¦æœŸ
- 望“我是供应商â€ä¼šæˆä¸ºå†…核改用你的驱动程åºçš„ç†ç”±ã€‚ç†æƒ³çš„情
- 况是:供应商与现有驱动程åºçš„作者åˆä½œï¼Œæž„建一个统一完美的
- 驱动程åºã€‚
-
-作者: 驱动程åºæ˜¯ç”±å¤§çš„ Linux å…¬å¸ç ”å‘还是由你个人编写,并ä¸å½±
- å“其是å¦èƒ½è¢«å†…核接å—。没有人对内核æºç æ ‘享有特æƒã€‚åªè¦ä½ 
- 充分了解内核社区,你就会å‘现这一点。
-
-
-资æºåˆ—表
---------
-
-Linux 内核主æºç æ ‘:
- ftp.??.kernel.org:/pub/linux/kernel/...
- ?? == 你的国家代ç ï¼Œä¾‹å¦‚ "cn"ã€"us"ã€"uk"ã€"fr" 等等
-
-Linux 内核邮件列表:
- linux-kernel@vger.kernel.org
- [å¯é€šè¿‡å‘majordomo@vger.kernel.orgå‘邮件æ¥è®¢é˜…]
-
-Linux 设备驱动程åºï¼Œç¬¬ä¸‰ç‰ˆï¼ˆæŽ¢è®¨ 2.6.10 版内核):
- https://lwn.net/Kernel/LDD3/ (å…费版)
-
-LWN.net:
- æ¯å‘¨å†…核开å‘æ´»åŠ¨æ‘˜è¦ - https://lwn.net/
-
- 2.6 版中 API çš„å˜æ›´ï¼š
-
- https://lwn.net/Articles/2.6-kernel-api/
-
- 将旧版内核的驱动程åºç§»æ¤åˆ° 2.6 版:
-
- https://lwn.net/Articles/driver-porting/
-
-内核新手(KernelNewbies):
- 为新的内核开å‘者æ供文档和帮助
- https://kernelnewbies.org/
-
-Linux USB项目:
- http://www.linux-usb.org/
-
-写内核驱动的“ä¸è¦â€ï¼ˆArjan van de Ven著):
- http://www.fenrus.org/how-to-not-write-a-device-driver-paper.pdf
-
-内核清æ´å·¥ (Kernel Janitor):
- https://kernelnewbies.org/KernelJanitors
diff --git a/Documentation/translations/zh_CN/process/submitting-patches.rst b/Documentation/translations/zh_CN/process/submitting-patches.rst
index a9570165582a..f8978f02057c 100644
--- a/Documentation/translations/zh_CN/process/submitting-patches.rst
+++ b/Documentation/translations/zh_CN/process/submitting-patches.rst
@@ -1,144 +1,92 @@
-.. _cn_submittingpatches:
+.. SPDX-License-Identifier: GPL-2.0-or-later
.. include:: ../disclaimer-zh_CN.rst
-:Original: :ref:`Documentation/process/submitting-patches.rst <submittingpatches>`
+.. _cn_submittingpatches:
+
+:Original: Documentation/process/submitting-patches.rst
-译者::
+:译者:
+ - 钟宇 TripleX Chung <xxx.phy@gmail.com>
+ - 时奎亮 Alex Shi <alexs@kernel.org>
+ - å´æƒ³æˆ Wu XiangCheng <bobwxc@email.cn>
- 中文版维护者: 钟宇 TripleX Chung <xxx.phy@gmail.com>
- 中文版翻译者: 钟宇 TripleX Chung <xxx.phy@gmail.com>
- 时奎亮 Alex Shi <alex.shi@linux.alibaba.com>
- 中文版校译者: æŽé˜³ Li Yang <leoyang.li@nxp.com>
- çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com>
+:校译:
+ - æŽé˜³ Li Yang <leoyang.li@nxp.com>
+ - çŽ‹èª Wang Cong <xiyou.wangcong@gmail.com>
-如何让你的改动进入内核
-======================
+æ交补ä¸ï¼šå¦‚何让你的改动进入内核
+================================
对于想è¦å°†æ”¹åŠ¨æ交到 Linux 内核的个人或者公å¸æ¥è¯´ï¼Œå¦‚æžœä¸ç†Ÿæ‚‰â€œè§„矩â€ï¼Œ
-æ交的æµç¨‹ä¼šè®©äººç•æƒ§ã€‚本文档收集了一系列建议,这些建议å¯ä»¥å¤§å¤§çš„æ高你
+æ交的æµç¨‹ä¼šè®©äººç•æƒ§ã€‚本文档包å«äº†ä¸€ç³»åˆ—建议,å¯ä»¥å¤§å¤§æ高你
的改动被接å—的机会.
-以下文档å«æœ‰å¤§é‡ç®€æ´çš„建议, 具体请è§ï¼š
-:ref:`Documentation/process <development_process_main>`
-åŒæ ·ï¼Œ:ref:`Documentation/translations/zh_CN/process/submit-checklist.rst <cn_submitchecklist>`
-给出在æ交代ç å‰éœ€è¦æ£€æŸ¥çš„项目的列表。如果你在æ交一个驱动程åºï¼Œé‚£ä¹ˆ
-åŒæ—¶é˜…读一下:
-:ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
+本文档以较为简æ´çš„行文给出了大é‡å»ºè®®ã€‚关于内核开å‘æµç¨‹å¦‚何进行的详细信æ¯ï¼Œ
+å‚è§ï¼š Documentation/translations/zh_CN/process/development-process.rst 。
+Documentation/translations/zh_CN/process/submit-checklist.rst 给出了一系列
+æ交补ä¸ä¹‹å‰è¦æ£€æŸ¥çš„事项。设备树相关的补ä¸ï¼Œè¯·å‚阅
+Documentation/devicetree/bindings/submitting-patches.rst 。
-其中许多步骤æ述了Git版本控制系统的默认行为;如果您使用Gitæ¥å‡†å¤‡è¡¥ä¸ï¼Œ
-您将å‘现它为您完æˆçš„大部分机械工作,尽管您ä»ç„¶éœ€è¦å‡†å¤‡å’Œè®°å½•ä¸€ç»„åˆç†çš„
-è¡¥ä¸ã€‚一般æ¥è¯´ï¼Œä½¿ç”¨git将使您作为内核开å‘人员的生活更轻æ¾ã€‚
+本文档å‡è®¾æ‚¨æ­£åœ¨ä½¿ç”¨ ``git`` 准备你的补ä¸ã€‚如果您ä¸ç†Ÿæ‚‰ ``git`` ,最好学习
+如何使用它,这将使您作为内核开å‘人员的生活å˜å¾—更加轻æ¾ã€‚
+部分å­ç³»ç»Ÿå’Œç»´æŠ¤äººå‘˜çš„树有一些关于其工作æµç¨‹å’Œè¦æ±‚çš„é¢å¤–ä¿¡æ¯ï¼Œè¯·å‚阅
+Documentation/process/maintainer-handbooks.rst 。
-0) 获å–当å‰æºç æ ‘
------------------
+获å–当å‰æºç æ ‘
+--------------
-如果您没有一个å¯ä»¥ä½¿ç”¨å½“å‰å†…æ ¸æºä»£ç çš„存储库,请使用git获å–一个。您将è¦
-从主线存储库开始,它å¯ä»¥é€šè¿‡ä»¥ä¸‹æ–¹å¼èŽ·å–::
+如果您手头没有当å‰å†…æ ¸æºä»£ç çš„存储库,请使用 ``git`` 获å–一份。您需è¦å…ˆèŽ·å–
+主线存储库,它å¯ä»¥é€šè¿‡ä»¥ä¸‹å‘½ä»¤æ‹‰å–::
- git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
+ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
-但是,请注æ„,您å¯èƒ½ä¸å¸Œæœ›ç›´æŽ¥é’ˆå¯¹ä¸»çº¿æ ‘进行开å‘。大多数å­ç³»ç»Ÿç»´æŠ¤äººå‘˜è¿
+但是,请注æ„,您å¯èƒ½ä¸æƒ³ç›´æŽ¥é’ˆå¯¹ä¸»çº¿æ ‘进行开å‘。大多数å­ç³»ç»Ÿç»´æŠ¤äººå‘˜è¿
行自己的树,并希望看到针对这些树准备的补ä¸ã€‚请å‚è§MAINTAINERS文件中å­ç³»
-统的 **T:** 项以查找该树,或者简å•åœ°è¯¢é—®ç»´æŠ¤è€…该树是å¦æœªåœ¨å…¶ä¸­åˆ—出。
-
-ä»ç„¶å¯ä»¥é€šè¿‡tarballs下载内核版本(如下一节所述),但这是进行内核开å‘çš„
-一ç§å›°éš¾çš„æ–¹å¼ã€‚
-
-1) "diff -up"
--------------
-
-使用 "diff -up" 或者 "diff -uprN" æ¥åˆ›å»ºè¡¥ä¸ã€‚
-
-所有内核的改动,都是以补ä¸çš„å½¢å¼å‘ˆçŽ°çš„,补ä¸ç”± diff(1) 生æˆã€‚创建补ä¸çš„
-时候,è¦ç¡®è®¤å®ƒæ˜¯ä»¥ "unified diff" æ ¼å¼åˆ›å»ºçš„,这ç§æ ¼å¼ç”± diff(1) çš„ '-u'
-å‚数生æˆã€‚而且,请使用 '-p' å‚数,那样会显示æ¯ä¸ªæ”¹åŠ¨æ‰€åœ¨çš„C函数,使得
-产生的补ä¸å®¹æ˜“读得多。补ä¸åº”该基于内核æºä»£ç æ ‘的根目录,而ä¸æ˜¯é‡Œè¾¹çš„ä»»
-何å­ç›®å½•ã€‚
-
-为一个å•ç‹¬çš„文件创建补ä¸ï¼Œä¸€èˆ¬æ¥è¯´è¿™æ ·åšå°±å¤Ÿäº†::
-
- SRCTREE=linux
- MYFILE=drivers/net/mydriver.c
+统的 **T:** 项以查找该树,或者直接询问维护者该树是å¦æœªåœ¨å…¶ä¸­åˆ—出。
- cd $SRCTREE
- cp $MYFILE $MYFILE.orig
- vi $MYFILE # make your change
- cd ..
- diff -up $SRCTREE/$MYFILE{.orig,} > /tmp/patch
+.. _zh_describe_changes:
-为多个文件创建补ä¸ï¼Œä½ å¯ä»¥è§£å¼€ä¸€ä¸ªæ²¡æœ‰ä¿®æ”¹è¿‡çš„内核æºä»£ç æ ‘,然åŽå’Œä½ è‡ª
-己的代ç æ ‘ä¹‹é—´åš diff 。例如::
-
- MYSRC=/devel/linux
-
- tar xvfz linux-3.19.tar.gz
- mv linux-3.19 linux-3.19-vanilla
- diff -uprN -X linux-3.19-vanilla/Documentation/dontdiff \
- linux-3.19-vanilla $MYSRC > /tmp/patch
-
-"dontdiff" 是内核在编译的时候产生的文件的列表,列表中的文件在 diff(1)
-产生的补ä¸é‡Œä¼šè¢«è·³è¿‡ã€‚
-
-确定你的补ä¸é‡Œæ²¡æœ‰åŒ…å«ä»»ä½•ä¸å±žäºŽè¿™æ¬¡è¡¥ä¸æ交的é¢å¤–文件。记得在用diff(1)
-生æˆè¡¥ä¸ä¹‹åŽï¼Œå®¡é˜…一次补ä¸ï¼Œä»¥ç¡®ä¿å‡†ç¡®ã€‚
-
-如果你的改动很散乱,你应该研究一下如何将补ä¸åˆ†å‰²æˆç‹¬ç«‹çš„部分,将改动分
-割æˆä¸€ç³»åˆ—åˆä¹Žé€»è¾‘的步骤。这样更容易让其他内核开å‘者审核,如果你想你的
-è¡¥ä¸è¢«æŽ¥å—,这是很é‡è¦çš„。请å‚阅:
-:ref:`cn_split_changes`
-
-如果你用 ``git`` , ``git rebase -i`` å¯ä»¥å¸®åŠ©ä½ è¿™ä¸€ç‚¹ã€‚如果你ä¸ç”¨ ``git``,
-``quilt`` <https://savannah.nongnu.org/projects/quilt> å¦å¤–一个æµè¡Œçš„选择。
-
-.. _cn_describe_changes:
-
-2) æ述你的改动
----------------
+æ述你的改动
+------------
æ述你的问题。无论您的补ä¸æ˜¯ä¸€è¡Œé”™è¯¯ä¿®å¤è¿˜æ˜¯5000行新功能,都必须有一个潜在
-的问题激励您完æˆè¿™é¡¹å·¥ä½œã€‚让审稿人相信有一个问题值得解决,让他们读完第一段
-是有æ„义的。
+的问题激励您完æˆè¿™é¡¹å·¥ä½œã€‚说æœå®¡é˜…者相信有一个问题值得解决,让他们读完第一段
+åŽå°±èƒ½æ˜Žç™½è¿™ä¸€ç‚¹ã€‚
æ述用户å¯è§çš„å½±å“。直接崩溃和é”定是相当有说æœåŠ›çš„,但并ä¸æ˜¯æ‰€æœ‰çš„错误都那么
-明目张胆。å³ä½¿åœ¨ä»£ç å®¡æŸ¥æœŸé—´å‘现了这个问题,也è¦æ述一下您认为它å¯èƒ½å¯¹ç”¨æˆ·äº§
+明目张胆。å³ä½¿åœ¨ä»£ç å®¡é˜…期间å‘现了这个问题,也è¦æ述一下您认为它å¯èƒ½å¯¹ç”¨æˆ·äº§
生的影å“。请记ä½ï¼Œå¤§å¤šæ•°Linux安装è¿è¡Œçš„内核æ¥è‡ªäºŒçº§ç¨³å®šæ ‘或特定于供应商/产å“
的树,åªä»Žä¸Šæ¸¸ç²¾é€‰ç‰¹å®šçš„è¡¥ä¸ï¼Œå› æ­¤è¯·åŒ…å«ä»»ä½•å¯ä»¥å¸®åŠ©æ‚¨å°†æ›´æ”¹å®šä½åˆ°ä¸‹æ¸¸çš„内容:
触å‘的场景ã€DMESG的摘录ã€å´©æºƒæè¿°ã€æ€§èƒ½å›žå½’ã€å»¶è¿Ÿå°–å³°ã€é”定等。
-é‡åŒ–优化和æƒè¡¡ã€‚如果您声称在性能ã€å†…存消耗ã€å †æ ˆå ç”¨ç©ºé—´æˆ–二进制大å°æ–¹é¢æœ‰æ‰€
-改进,请包括支æŒå®ƒä»¬çš„数字。但也è¦æè¿°ä¸æ˜Žæ˜¾çš„æˆæœ¬ã€‚优化通常ä¸æ˜¯å…费的,而是
-在CPUã€å†…存和å¯è¯»æ€§ä¹‹é—´è¿›è¡Œæƒè¡¡ï¼›æˆ–者,探索性的工作,在ä¸åŒçš„工作负载之间进
+è´¨é‡ä¼˜åŒ–å’Œæƒè¡¡ã€‚如果您声称在性能ã€å†…存消耗ã€å †æ ˆå ç”¨ç©ºé—´æˆ–二进制大å°æ–¹é¢æœ‰æ‰€
+改进,请包括支æŒå®ƒä»¬çš„æ•°æ®ã€‚但也è¦æè¿°ä¸æ˜Žæ˜¾çš„æˆæœ¬ã€‚优化通常ä¸æ˜¯é›¶æˆæœ¬çš„,而是
+在CPUã€å†…存和å¯è¯»æ€§ä¹‹é—´è¿›è¡Œæƒè¡¡ï¼›æˆ–者,åšæŽ¢ç´¢æ€§çš„工作,在ä¸åŒçš„工作负载之间进
è¡Œæƒè¡¡ã€‚请æ述优化的预期缺点,以便审阅者å¯ä»¥æƒè¡¡æˆæœ¬å’Œæ”¶ç›Šã€‚
-一旦问题建立起æ¥ï¼Œå°±è¦è¯¦ç»†åœ°æ述一下您实际在åšä»€ä¹ˆã€‚对于审阅者æ¥è¯´ï¼Œç”¨ç®€å•çš„
-英语æ述代ç çš„å˜åŒ–是很é‡è¦çš„,以验è¯ä»£ç çš„行为是å¦ç¬¦åˆæ‚¨çš„æ„愿。
+æ出问题之åŽï¼Œå°±è¦è¯¦ç»†åœ°æ述一下您实际在åšçš„技术细节。对于审阅者æ¥è¯´ï¼Œç”¨ç®€ç»ƒçš„
+英语æ述代ç çš„å˜åŒ–是很é‡è¦çš„,以验è¯ä»£ç çš„行为是å¦ç¬¦åˆæ‚¨çš„æ„图。
-如果您将补ä¸æ述写在一个表å•ä¸­ï¼Œè¿™ä¸ªè¡¨å•å¯ä»¥å¾ˆå®¹æ˜“地作为“æ交日志â€æ”¾å…¥Linux
-çš„æºä»£ç ç®¡ç†ç³»ç»Ÿgit中,那么维护人员将éžå¸¸æ„Ÿè°¢æ‚¨ã€‚è§ :ref:`cn_explicit_in_reply_to`.
+如果您将补ä¸æ述写æˆâ€œæ ‡å‡†æ ¼å¼â€ï¼Œå¯ä»¥å¾ˆå®¹æ˜“地作为“æ交日志â€æ”¾å…¥Linuxçš„æºä»£
+ç ç®¡ç†ç³»ç»Ÿ ``git`` 中,那么维护人员将éžå¸¸æ„Ÿè°¢æ‚¨ã€‚
+å‚è§ :ref:`zh_the_canonical_patch_format` 。
æ¯ä¸ªè¡¥ä¸åªè§£å†³ä¸€ä¸ªé—®é¢˜ã€‚如果你的æ述开始å˜é•¿ï¼Œè¿™å°±è¡¨æ˜Žä½ å¯èƒ½éœ€è¦æ‹†åˆ†ä½ çš„è¡¥ä¸ã€‚
-è¯·è§ :ref:`cn_split_changes`
+è¯·è§ :ref:`zh_split_changes` 。
-æ交或é‡æ–°æ交修补程åºæˆ–修补程åºç³»åˆ—时,请包括完整的修补程åºè¯´æ˜Žå’Œç†ç”±ã€‚ä¸è¦
+æ交或é‡æ–°æ交补ä¸æˆ–è¡¥ä¸ç³»åˆ—时,请包括完整的补ä¸è¯´æ˜Žå’Œç†ç”±ã€‚ä¸è¦
åªè¯´è¿™æ˜¯è¡¥ä¸ï¼ˆç³»åˆ—)的第几版。ä¸è¦æœŸæœ›å­ç³»ç»Ÿç»´æŠ¤äººå‘˜å¼•ç”¨æ›´æ—©çš„è¡¥ä¸ç‰ˆæœ¬æˆ–引用
URLæ¥æŸ¥æ‰¾è¡¥ä¸æ述并将其放入补ä¸ä¸­ã€‚也就是说,补ä¸ï¼ˆç³»åˆ—)åŠå…¶æ述应该是独立的。
-这对维护人员和审查人员都有好处。一些评审者å¯èƒ½ç”šè‡³æ²¡æœ‰æ”¶åˆ°è¡¥ä¸çš„早期版本。
+这对维护人员和审阅者都有好处。一些审阅者å¯èƒ½ç”šè‡³æ²¡æœ‰æ”¶åˆ°è¡¥ä¸çš„早期版本。
-æ述你在命令语气中的å˜åŒ–,例如“make xyzzy do frotzâ€è€Œä¸æ˜¯â€œ[This patch]make
+用祈使å¥æè¿°ä½ çš„å˜æ›´ï¼Œä¾‹å¦‚“make xyzzy do frotzâ€è€Œä¸æ˜¯â€œ[This patch]make
xyzzy do frotzâ€æˆ–“[I]changed xyzzy to do frotzâ€ï¼Œå°±å¥½åƒä½ åœ¨å‘½ä»¤ä»£ç åº“改å˜
它的行为一样。
-如果修补程åºä¿®å¤äº†ä¸€ä¸ªè®°å½•çš„bugæ¡ç›®ï¼Œè¯·æŒ‰ç¼–å·å’ŒURL引用该bugæ¡ç›®ã€‚如果补ä¸æ¥
-自邮件列表讨论,请给出邮件列表存档的URL;使用带有 ``Message-ID`` 的
-https://lore.kernel.org/ é‡å®šå‘,以确ä¿é“¾æŽ¥ä¸ä¼šè¿‡æ—¶ã€‚
-
-但是,在没有外部资æºçš„情况下,尽é‡è®©ä½ çš„解释å¯ç†è§£ã€‚除了æ供邮件列表存档或
-bugçš„URL之外,还è¦æ€»ç»“需è¦æ交补ä¸çš„相关讨论è¦ç‚¹ã€‚
-
-如果您想è¦å¼•ç”¨ä¸€ä¸ªç‰¹å®šçš„æ交,ä¸è¦åªå¼•ç”¨æ交的 SHA-1 ID。还请包括æ交的一行
+如果您想è¦å¼•ç”¨ä¸€ä¸ªç‰¹å®šçš„æ交,ä¸è¦åªå¼•ç”¨æ交的SHA-1 ID。还请包括æ交的一行
摘è¦ï¼Œä»¥ä¾¿äºŽå®¡é˜…者了解它是关于什么的。例如::
Commit e21d2170f36602ae2708 ("video: remove unnecessary
@@ -146,82 +94,104 @@ bugçš„URL之外,还è¦æ€»ç»“需è¦æ交补ä¸çš„相关讨论è¦ç‚¹ã€‚
platform_set_drvdata(), but left the variable "dev" unused,
delete it.
-您还应该确ä¿è‡³å°‘使用å‰12ä½ SHA-1 ID. 内核存储库包å«*许多*对象,使与较短的ID
+您还应该确ä¿è‡³å°‘使用å‰12ä½SHA-1 IDã€‚å†…æ ¸å­˜å‚¨åº“åŒ…å« *许多* 对象,使较短的ID
å‘生冲çªçš„å¯èƒ½æ€§å¾ˆå¤§ã€‚è®°ä½ï¼Œå³ä½¿çŽ°åœ¨ä¸ä¼šä¸Žæ‚¨çš„六个字符IDå‘生冲çªï¼Œè¿™ç§æƒ…况
-å¯èƒ½äº”å¹´åŽæ”¹å˜ã€‚
+也å¯èƒ½åœ¨äº”å¹´åŽæ”¹å˜ã€‚
+
+如果该å˜æ›´çš„相关讨论或背景信æ¯å¯ä»¥åœ¨ç½‘上查阅,请加上“Link:â€æ ‡ç­¾æŒ‡å‘它。例如
+ä½ çš„è¡¥ä¸ä¿®å¤äº†ä¸€ä¸ªç¼ºé™·ï¼Œéœ€è¦æ·»åŠ ä¸€ä¸ªå¸¦æœ‰URL的标签指å‘邮件列表存档或缺陷跟踪器
+的相关报告;如果该补ä¸æ˜¯ç”±ä¸€äº›æ—©å…ˆé‚®ä»¶åˆ—表讨论或网络上的记录引起的,请指å‘它。
+
+当链接到邮件列表存档时,请首选lore.kernel.org邮件存档æœåŠ¡ã€‚用邮件中的
+``Message-ID`` 头(去掉尖括å·ï¼‰å¯ä»¥åˆ›å»ºé“¾æŽ¥URL。例如::
+
+ Link: https://lore.kernel.org/r/30th.anniversary.repost@klaava.Helsinki.FI/
+
+请检查该链接以确ä¿å¯ç”¨ä¸”指å‘正确的邮件。
-如果修补程åºä¿®å¤äº†ç‰¹å®šæ交中的错误,例如,使用 ``git bisct`` ,请使用带有å‰
-12个字符SHA-1 ID çš„"Fixes:"标记和å•è¡Œæ‘˜è¦ã€‚为了简化ä¸è¦å°†æ ‡è®°æ‹†åˆ†ä¸ºå¤šä¸ªï¼Œ
-è¡Œã€æ ‡è®°ä¸å—分æžè„šæœ¬â€œ75列æ¢è¡Œâ€è§„则的é™åˆ¶ã€‚例如::
+ä¸è¿‡ï¼Œåœ¨æ²¡æœ‰å¤–部资æºçš„情况下,也è¦å°½é‡è®©ä½ çš„解释å¯ç†è§£ã€‚除了æ供邮件列表存档或
+缺陷的URL之外,还è¦éœ€è¦æ€»ç»“该补ä¸çš„相关讨论è¦ç‚¹ã€‚
- Fixes: 54a4f0239f2e ("KVM: MMU: make kvm_mmu_zap_page() return the number of pages it actually freed")
+如果补ä¸ä¿®å¤äº†ç‰¹å®šæ交中的错误,例如使用 ``git bisct`` å‘现了一个问题,请使用
+带有å‰12个字符SHA-1 ID的“Fixes:â€æ ‡ç­¾å’Œå•è¡Œæ‘˜è¦ã€‚为了简化解æžè„šæœ¬ï¼Œä¸è¦å°†è¯¥
+标签拆分为多行,标签ä¸å—“75列æ¢è¡Œâ€è§„则的é™åˆ¶ã€‚例如::
-下列 ``git config`` 设置å¯ä»¥æ·»åŠ è®© ``git log``, ``git show`` 漂亮的显示格å¼::
+ Fixes: 54a4f0239f2e ("KVM: MMU: make kvm_mmu_zap_page() return the number of pages it actually freed")
+
+下列 ``git config`` 设置å¯ä»¥è®© ``git log``, ``git show`` 增加上述风格的显示格å¼::
[core]
abbrev = 12
[pretty]
fixes = Fixes: %h (\"%s\")
-.. _cn_split_changes:
+使用示例::
+
+ $ git log -1 --pretty=fixes 54a4f0239f2e
+ Fixes: 54a4f0239f2e ("KVM: MMU: make kvm_mmu_zap_page() return the number of pages it actually freed")
-3) 拆分你的改动
----------------
+.. _zh_split_changes:
-å°†æ¯ä¸ªé€»è¾‘更改分隔æˆä¸€ä¸ªå•ç‹¬çš„è¡¥ä¸ã€‚
+拆分你的改动
+------------
+
+å°†æ¯ä¸ª **逻辑更改** 拆分æˆä¸€ä¸ªå•ç‹¬çš„è¡¥ä¸ã€‚
例如,如果你的改动里åŒæ—¶æœ‰bug修正和性能优化,那么把这些改动拆分到两个或
-者更多的补ä¸æ–‡ä»¶ä¸­ã€‚如果你的改动包å«å¯¹API的修改,并且修改了驱动程åºæ¥é€‚
-应这些新的API,那么把这些修改分æˆä¸¤ä¸ªè¡¥ä¸ã€‚
+者更多的补ä¸æ–‡ä»¶ä¸­ã€‚如果你的改动包å«å¯¹API的修改,并且增加了一个使用该新API
+的驱动,那么把这些修改分æˆä¸¤ä¸ªè¡¥ä¸ã€‚
å¦ä¸€æ–¹é¢ï¼Œå¦‚果你将一个å•ç‹¬çš„改动åšæˆå¤šä¸ªè¡¥ä¸æ–‡ä»¶ï¼Œé‚£ä¹ˆå°†å®ƒä»¬åˆå¹¶æˆä¸€ä¸ª
å•ç‹¬çš„è¡¥ä¸æ–‡ä»¶ã€‚这样一个逻辑上å•ç‹¬çš„改动åªè¢«åŒ…å«åœ¨ä¸€ä¸ªè¡¥ä¸æ–‡ä»¶é‡Œã€‚
-如果有一个补ä¸ä¾èµ–å¦å¤–一个补ä¸æ¥å®Œæˆå®ƒçš„改动,那没问题。简å•çš„在你的补
-ä¸æ述里指出“这个补ä¸ä¾èµ–æŸè¡¥ä¸â€å°±å¥½äº†ã€‚
+需è¦è®°ä½çš„一点是,æ¯ä¸ªè¡¥ä¸çš„更改都应易于ç†è§£ï¼Œä»¥ä¾¿å®¡é˜…者验è¯ã€‚æ¯ä¸ªè¡¥ä¸éƒ½åº”该
+对其价值进行é˜è¿°ã€‚
+
+如果有一个补ä¸ä¾èµ–å¦å¤–一个补ä¸æ¥å®Œæˆå®ƒçš„改动,那没问题。直接在你的补
+ä¸æ述里指出 **“这个补ä¸ä¾èµ–æŸè¡¥ä¸â€** 就好了。
-在将您的更改划分为一系列补ä¸æ—¶ï¼Œè¦ç‰¹åˆ«æ³¨æ„ç¡®ä¿å†…核在系列中的æ¯ä¸ªè¡¥ä¸ä¹‹åŽ
-都能正常构建和è¿è¡Œã€‚使用 ``git bisect`` æ¥è¿½è¸ªé—®é¢˜çš„å¼€å‘者å¯èƒ½ä¼šåœ¨ä»»ä½•æ—¶
-候分割你的补ä¸ç³»åˆ—;如果你在中间引入错误,他们ä¸ä¼šæ„Ÿè°¢ä½ ã€‚
+在将您的更改划分为一系列补ä¸æ—¶ï¼Œè¦ç‰¹åˆ«æ³¨æ„ç¡®ä¿å†…核在应用系列中的æ¯ä¸ªè¡¥ä¸ä¹‹åŽ
+都能正常构建和è¿è¡Œã€‚使用 ``git bisect`` æ¥è¿½è¸ªé—®é¢˜çš„å¼€å‘者å¯èƒ½ä¼šåœ¨ä»»ä½•åœ°æ–¹åˆ†
+割你的补ä¸ç³»åˆ—;如果你在中间引入错误,他们ä¸ä¼šæ„Ÿè°¢ä½ ã€‚
-如果你ä¸èƒ½å°†è¡¥ä¸æµ“缩æˆæ›´å°‘的文件,那么æ¯æ¬¡å¤§çº¦å‘é€å‡º15个,然åŽç­‰å¾…审查
+如果你ä¸èƒ½å°†è¡¥ä¸ç³»åˆ—浓缩得更å°ï¼Œé‚£ä¹ˆæ¯æ¬¡å¤§çº¦å‘é€å‡º15个补ä¸ï¼Œç„¶åŽç­‰å¾…审阅
和集æˆã€‚
-4) 检查你的更改风格
--------------------
+检查你的更改风格
+----------------
-检查您的补ä¸æ˜¯å¦å­˜åœ¨åŸºæœ¬æ ·å¼å†²çªï¼Œè¯¦ç»†ä¿¡æ¯å¯åœ¨
-:ref:`Documentation/translations/zh_CN/process/coding-style.rst <cn_codingstyle>`
-中找到。如果ä¸è¿™æ ·åšï¼Œåªä¼šæµªè´¹å®¡ç¨¿äººçš„时间,并且会导致你的补ä¸è¢«æ‹’ç»ï¼Œç”šè‡³
+检查您的补ä¸æ˜¯å¦è¿å了基本样å¼è§„定,详细信æ¯å‚è§
+Documentation/translations/zh_CN/process/coding-style.rst
+中找到。如果ä¸è¿™æ ·åšï¼Œåªä¼šæµªè´¹å®¡é˜…者的时间,并且会导致你的补ä¸è¢«æ‹’ç»ï¼Œç”šè‡³
å¯èƒ½æ²¡æœ‰è¢«é˜…读。
一个é‡è¦çš„例外是在将代ç ä»Žä¸€ä¸ªæ–‡ä»¶ç§»åŠ¨åˆ°å¦ä¸€ä¸ªæ–‡ä»¶æ—¶â€”—在这ç§æƒ…况下,您ä¸åº”
该在移动代ç çš„åŒä¸€ä¸ªè¡¥ä¸ä¸­ä¿®æ”¹ç§»åŠ¨çš„代ç ã€‚这清楚地æ述了移动代ç å’Œæ‚¨çš„更改
-的行为。这大大有助于审查实际差异,并å…许工具更好地跟踪代ç æœ¬èº«çš„历å²ã€‚
+的行为。这大大有助于审阅实际差异,并å…许工具更好地跟踪代ç æœ¬èº«çš„历å²ã€‚
在æ交之å‰ï¼Œä½¿ç”¨è¡¥ä¸æ ·å¼æ£€æŸ¥ç¨‹åºæ£€æŸ¥è¡¥ä¸ï¼ˆscripts/check patch.pl)。ä¸è¿‡ï¼Œ
请注æ„,样å¼æ£€æŸ¥ç¨‹åºåº”该被视为一个指å—,而ä¸æ˜¯ä½œä¸ºäººç±»åˆ¤æ–­çš„替代å“。如果您
-的代ç çœ‹èµ·æ¥æ›´å¥½ï¼Œä½†æœ‰è¿è§„行为,那么最好ä¸è¦ä½¿ç”¨å®ƒã€‚
+的代ç çœ‹èµ·æ¥æ›´å¥½ï¼Œä½†æœ‰è¿è§„行为,那么最好别管它。
检查者报告三个级别:
- ERROR:很å¯èƒ½å‡ºé”™çš„事情
- - WARNING:需è¦ä»”细审查的事项
+ - WARNING:需è¦ä»”细审阅的事项
- CHECK:需è¦æ€è€ƒçš„事情
您应该能够判断您的补ä¸ä¸­å­˜åœ¨çš„所有è¿è§„行为。
-5) 选择补ä¸æ”¶ä»¶äºº
------------------
+选择补ä¸æ”¶ä»¶äºº
+--------------
-您应该总是在任何补ä¸ä¸Šå¤åˆ¶ç›¸åº”çš„å­ç³»ç»Ÿç»´æŠ¤äººå‘˜ï¼Œä»¥èŽ·å¾—他们维护的代ç ï¼›æŸ¥çœ‹
+您应该总是知会任何补ä¸ç›¸åº”代ç çš„å­ç³»ç»Ÿç»´æŠ¤äººå‘˜ï¼›æŸ¥çœ‹
维护人员文件和æºä»£ç ä¿®è®¢åŽ†å²è®°å½•ï¼Œä»¥äº†è§£è¿™äº›ç»´æŠ¤äººå‘˜æ˜¯è°ã€‚脚本
-scripts/get_Maintainer.pl在这个步骤中éžå¸¸æœ‰ç”¨ã€‚如果您找ä¸åˆ°æ­£åœ¨å·¥ä½œçš„å­ç³»ç»Ÿ
+scripts/get_maintainer.pl在这个步骤中éžå¸¸æœ‰ç”¨ã€‚如果您找ä¸åˆ°æ­£åœ¨å·¥ä½œçš„å­ç³»ç»Ÿ
的维护人员,那么Andrew Morton(akpm@linux-foundation.org)将充当最åŽçš„维护
人员。
-您通常还应该选择至少一个邮件列表æ¥æŽ¥æ”¶è¡¥ä¸é›†çš„。linux-kernel@vger.kernel.org
-作为最åŽä¸€ä¸ªè§£å†³åŠžæ³•çš„列表,但是这个列表上的体积已ç»å¼•èµ·äº†è®¸å¤šå¼€å‘人员的拒ç»ã€‚
+您通常还应该选择至少一个邮件列表æ¥æŽ¥æ”¶è¡¥ä¸é›†çš„副本。linux-kernel@vger.kernel.org
+是所有补ä¸çš„默认列表,但是这个列表的æµé‡å·²ç»å¯¼è‡´äº†è®¸å¤šå¼€å‘人员ä¸å†çœ‹å®ƒã€‚
在MAINTAINERS文件中查找å­ç³»ç»Ÿç‰¹å®šçš„列表;您的补ä¸å¯èƒ½ä¼šåœ¨é‚£é‡Œå¾—到更多的关注。
ä¸è¿‡ï¼Œè¯·ä¸è¦å‘é€åžƒåœ¾é‚®ä»¶åˆ°æ— å…³çš„列表。
@@ -231,189 +201,170 @@ http://vger.kernel.org/vger-lists.html 上找到它们的列表。ä¸è¿‡ï¼Œä¹Ÿæœ
ä¸è¦ä¸€æ¬¡å‘é€è¶…过15个补ä¸åˆ°vger邮件列表ï¼ï¼ï¼ï¼
-Linus Torvalds 是决定改动能å¦è¿›å…¥ Linux 内核的最终è£å†³è€…。他的 e-mail
-地å€æ˜¯ <torvalds@linux-foundation.org> 。他收到的 e-mail 很多,所以一般
-çš„è¯´ï¼Œæœ€å¥½åˆ«ç»™ä»–å‘ e-mail。
-
-如果您有修å¤å¯åˆ©ç”¨å®‰å…¨æ¼æ´žçš„è¡¥ä¸ï¼Œè¯·å°†è¯¥è¡¥ä¸å‘é€åˆ° security@kernel.org。对于
-严é‡çš„bug,å¯ä»¥è€ƒè™‘短期暂åœä»¥å…许分销商å‘用户å‘布补ä¸ï¼›åœ¨è¿™ç§æƒ…况下,显然ä¸åº”
-将补ä¸å‘é€åˆ°ä»»ä½•å…¬å…±åˆ—表。
+Linus Torvalds是决定改动能å¦è¿›å…¥ Linux 内核的最终è£å†³è€…。他的邮件地å€æ˜¯
+torvalds@linux-foundation.org 。他收到的邮件很多,所以一般æ¥è¯´æœ€å¥½ **别**
+给他å‘邮件。
-ä¿®å¤å·²å‘布内核中严é‡é”™è¯¯çš„è¡¥ä¸ç¨‹åºåº”该指å‘稳定版维护人员,方法是放这样的一行::
+如果您有修å¤å¯åˆ©ç”¨å®‰å…¨æ¼æ´žçš„è¡¥ä¸ï¼Œè¯·å°†è¯¥è¡¥ä¸å‘é€åˆ° security@kernel.org 。对于
+严é‡çš„bug,å¯ä»¥è€ƒè™‘短期ç¦ä»¤ä»¥å…许分销商(有时间)å‘用户å‘布补ä¸ï¼›åœ¨è¿™ç§æƒ…况下,
+显然ä¸åº”将补ä¸å‘é€åˆ°ä»»ä½•å…¬å…±åˆ—表。
+å‚è§ Documentation/translations/zh_CN/admin-guide/security-bugs.rst 。
- Cc: stable@vger.kernel.org
+ä¿®å¤å·²å‘布内核中严é‡é”™è¯¯çš„è¡¥ä¸ç¨‹åºåº”该抄é€ç»™ç¨³å®šç‰ˆç»´æŠ¤äººå‘˜ï¼Œæ–¹æ³•æ˜¯æŠŠä»¥ä¸‹åˆ—è¡Œ
+放进补ä¸çš„签准区(注æ„,ä¸æ˜¯ç”µå­é‚®ä»¶æ”¶ä»¶äººï¼‰::
-进入补ä¸çš„签准区(注æ„,ä¸æ˜¯ç”µå­é‚®ä»¶æ”¶ä»¶äººï¼‰ã€‚除了这个文件之外,您还应该阅读
-:ref:`Documentation/process/stable-kernel-rules.rst <stable_kernel_rules>`
+ Cc: stable@vger.kernel.org
-但是,请注æ„,一些å­ç³»ç»Ÿç»´æŠ¤äººå‘˜å¸Œæœ›å¾—出他们自己的结论,å³å“ªäº›è¡¥ä¸åº”该被放到
-稳定的树上。尤其是网络维护人员,ä¸å¸Œæœ›çœ‹åˆ°å•ä¸ªå¼€å‘人员在补ä¸ä¸­æ·»åŠ åƒä¸Šé¢è¿™æ ·
-的行。
+除了本文件之外,您还应该阅读
+Documentation/translations/zh_CN/process/stable-kernel-rules.rst 。
-如果更改影å“到用户和内核接å£ï¼Œè¯·å‘手册页维护人员(如维护人员文件中所列)å‘é€
+如果更改影å“到用户侧内核接å£ï¼Œè¯·å‘手册页维护人员(如维护人员文件中所列)å‘é€
手册页补ä¸ï¼Œæˆ–至少å‘é€æ›´æ”¹é€šçŸ¥ï¼Œä»¥ä¾¿ä¸€äº›ä¿¡æ¯è¿›å…¥æ‰‹å†Œé¡µã€‚还应将用户空间API
-更改å¤åˆ¶åˆ° linux-api@vger.kernel.org。
+更改抄é€åˆ° linux-api@vger.kernel.org 。
-6) 没有 MIME ç¼–ç ï¼Œæ²¡æœ‰é“¾æŽ¥ï¼Œæ²¡æœ‰åŽ‹ç¼©ï¼Œæ²¡æœ‰é™„件,åªæœ‰çº¯æ–‡æœ¬
------------------------------------------------------------
+ä¸è¦MIMEç¼–ç ï¼Œä¸è¦é“¾æŽ¥ï¼Œä¸è¦åŽ‹ç¼©ï¼Œä¸è¦é™„件,åªè¦çº¯æ–‡æœ¬
+------------------------------------------------------
Linus 和其他的内核开å‘者需è¦é˜…读和评论你æ交的改动。对于内核开å‘者æ¥è¯´
-,å¯ä»¥â€œå¼•ç”¨â€ä½ çš„改动很é‡è¦ï¼Œä½¿ç”¨ä¸€èˆ¬çš„ e-mail 工具,他们就å¯ä»¥åœ¨ä½ çš„
+,å¯ä»¥â€œå¼•ç”¨â€ä½ çš„改动很é‡è¦ï¼Œä½¿ç”¨ä¸€èˆ¬çš„邮件工具,他们就å¯ä»¥åœ¨ä½ çš„
代ç çš„任何ä½ç½®æ·»åŠ è¯„论。
-因为这个原因,所有的æ交的补ä¸éƒ½æ˜¯ e-mail 中“内嵌â€çš„。
+因为这个原因,所有的æ交的补ä¸éƒ½æ˜¯é‚®ä»¶ä¸­â€œå†…嵌â€çš„。最简å•ï¼ˆå’ŒæŽ¨è)的方法就
+是使用 ``git send-email`` 。https://git-send-email.io 有 ``git send-email``
+的交互å¼æ•™ç¨‹ã€‚
+
+如果你选择ä¸ç”¨ ``git send-email`` :
.. warning::
- 如果你使用剪切-粘贴你的补ä¸ï¼Œå°å¿ƒä½ çš„编辑器的自动æ¢è¡ŒåŠŸèƒ½ç ´åä½ çš„è¡¥ä¸
-ä¸è¦å°†è¡¥ä¸ä½œä¸º MIME ç¼–ç çš„附件,ä¸ç®¡æ˜¯å¦åŽ‹ç¼©ã€‚很多æµè¡Œçš„ e-mail 软件ä¸
-是任何时候都将 MIME ç¼–ç çš„附件当作纯文本å‘é€çš„,这会使得别人无法在你的
-代ç ä¸­åŠ è¯„论。å¦å¤–,MIME ç¼–ç çš„附件会让 Linus 多花一点时间æ¥å¤„ç†ï¼Œè¿™å°±
-é™ä½Žäº†ä½ çš„改动被接å—çš„å¯èƒ½æ€§ã€‚
+ 如果你使用剪切-粘贴你的补ä¸ï¼Œå°å¿ƒä½ çš„编辑器的自动æ¢è¡ŒåŠŸèƒ½ç ´åä½ çš„è¡¥ä¸
-例外:如果你的邮递员弄å了补ä¸ï¼Œé‚£ä¹ˆæœ‰äººå¯èƒ½ä¼šè¦æ±‚你使用mimeé‡æ–°å‘é€è¡¥ä¸
+ä¸è¦å°†è¡¥ä¸ä½œä¸ºMIMEç¼–ç çš„附件,ä¸ç®¡æ˜¯å¦åŽ‹ç¼©ã€‚很多æµè¡Œçš„邮件软件ä¸
+是任何时候都将MIMEç¼–ç çš„附件当作纯文本å‘é€çš„,这会使得别人无法在你的
+代ç ä¸­åŠ è¯„论。å¦å¤–,MIMEç¼–ç çš„附件会让Linus多花一点时间æ¥å¤„ç†ï¼Œè¿™å°±
+é™ä½Žäº†ä½ çš„改动被接å—çš„å¯èƒ½æ€§ã€‚
-请å‚阅 :ref:`Documentation/translations/zh_CN/process/email-clients.rst <cn_email_clients>`
-以获å–有关é…置电å­é‚®ä»¶å®¢æˆ·ç«¯ä»¥ä½¿å…¶ä¸å—å½±å“地å‘é€ä¿®è¡¥ç¨‹åºçš„æ示。
+例外:如果你的邮路æŸå了补ä¸ï¼Œé‚£ä¹ˆæœ‰äººå¯èƒ½ä¼šè¦æ±‚你使用MIMEé‡æ–°å‘é€è¡¥ä¸ã€‚
-7) e-mail 的大å°
-----------------
+请å‚阅 Documentation/translations/zh_CN/process/email-clients.rst
+以获å–有关é…置电å­é‚®ä»¶å®¢æˆ·ç«¯ä»¥ä½¿å…¶ä¸å—å½±å“地å‘é€è¡¥ä¸çš„æ示。
-大的改动对邮件列表ä¸åˆé€‚,对æŸäº›ç»´æŠ¤è€…也ä¸åˆé€‚。如果你的补ä¸ï¼Œåœ¨ä¸åŽ‹ç¼©
-的情况下,超过了300kB,那么你最好将补ä¸æ”¾åœ¨ä¸€ä¸ªèƒ½é€šè¿‡ internet 访问的æœ
-务器上,然åŽç”¨æŒ‡å‘ä½ çš„è¡¥ä¸çš„ URL 替代。但是请注æ„,如果您的补ä¸è¶…过了
-300kb,那么它几乎肯定需è¦è¢«ç ´å。
+回å¤å®¡é˜…æ„è§
+------------
-8)回å¤è¯„审æ„è§
----------------
+ä½ çš„è¡¥ä¸å‡ ä¹Žè‚¯å®šä¼šå¾—到审阅者对补ä¸æ”¹è¿›æ–¹æ³•çš„评论(以回å¤é‚®ä»¶çš„å½¢å¼ï¼‰ã€‚您必须
+对这些评论作出回应;让补ä¸è¢«å¿½ç•¥çš„一个好办法就是忽略审阅者的æ„è§ã€‚直接回å¤é‚®
+件æ¥å›žåº”æ„è§å³å¯ã€‚ä¸ä¼šå¯¼è‡´ä»£ç æ›´æ”¹çš„æ„è§æˆ–问题几乎肯定会带æ¥æ³¨é‡Šæˆ–å˜æ›´æ—¥å¿—çš„
+改å˜ï¼Œä»¥ä¾¿ä¸‹ä¸€ä¸ªå®¡é˜…者更好地了解正在å‘生的事情。
-ä½ çš„è¡¥ä¸å‡ ä¹Žè‚¯å®šä¼šå¾—到评审者对补ä¸æ”¹è¿›æ–¹æ³•çš„评论。您必须对这些评论作出
-回应;让补ä¸è¢«å¿½ç•¥çš„一个好办法就是忽略审阅者的æ„è§ã€‚ä¸ä¼šå¯¼è‡´ä»£ç æ›´æ”¹çš„
-æ„è§æˆ–问题几乎肯定会带æ¥æ³¨é‡Šæˆ–å˜æ›´æ—¥å¿—的改å˜ï¼Œä»¥ä¾¿ä¸‹ä¸€ä¸ªè¯„审者更好地了解
-正在å‘生的事情。
+一定è¦å‘Šè¯‰å®¡é˜…者你在åšä»€ä¹ˆæ”¹å˜ï¼Œå¹¶æ„Ÿè°¢ä»–们的时间。代ç å®¡é˜…是一个累人且耗时的
+过程,审阅者有时会å˜å¾—æš´èºã€‚å³ä½¿åœ¨è¿™ç§æƒ…况下,也è¦ç¤¼è²Œåœ°å›žåº”并解决他们指出的
+问题。当å‘é€ä¸‹ä¸€ç‰ˆæ—¶ï¼Œåœ¨å°é¢é‚®ä»¶æˆ–独立补ä¸é‡ŒåŠ ä¸Š ``patch changelog`` 说明与
+å‰ä¸€ç‰ˆæœ¬çš„ä¸åŒä¹‹å¤„(å‚è§ :ref:`zh_the_canonical_patch_format` )。
-一定è¦å‘Šè¯‰å®¡ç¨¿äººä½ åœ¨åšä»€ä¹ˆæ”¹å˜ï¼Œå¹¶æ„Ÿè°¢ä»–们的时间。代ç å®¡æŸ¥æ˜¯ä¸€ä¸ªç´¯äººä¸”
-耗时的过程,审查人员有时会å˜å¾—æš´èºã€‚å³ä½¿åœ¨è¿™ç§æƒ…况下,也è¦ç¤¼è²Œåœ°å›žåº”并
-解决他们指出的问题。
+.. _zh_resend_reminders:
-9)ä¸è¦æ³„气或ä¸è€çƒ¦
--------------------
+ä¸è¦æ³„气或ä¸è€çƒ¦
+----------------
-æ交更改åŽï¼Œè¯·è€å¿ƒç­‰å¾…。审阅者是忙碌的人,å¯èƒ½æ— æ³•ç«‹å³è®¿é—®æ‚¨çš„修补程åºã€‚
+æ交更改åŽï¼Œè¯·è€å¿ƒç­‰å¾…。审阅者是大忙人,å¯èƒ½æ— æ³•ç«‹å³å®¡é˜…您的补ä¸ã€‚
-曾几何时,补ä¸æ›¾åœ¨æ²¡æœ‰è¯„论的情况下消失在空白中,但开å‘过程比现在更加顺利。
+曾几何时,补ä¸æ›¾åœ¨æ²¡æ”¶åˆ°è¯„论的情况下消失在虚空中,但现在开å‘过程应该更加顺利了。
您应该在一周左å³çš„时间内收到评论;如果没有收到评论,请确ä¿æ‚¨å·²å°†è¡¥ä¸å‘é€
-到正确的ä½ç½®ã€‚在é‡æ–°æ交或è”系审阅者之å‰è‡³å°‘等待一周-在诸如åˆå¹¶çª—å£ä¹‹ç±»çš„
+到正确的ä½ç½®ã€‚在é‡æ–°æ交或è”系审阅者之å‰è‡³å°‘等待一周——在诸如åˆå¹¶çª—å£ä¹‹ç±»çš„
ç¹å¿™æ—¶é—´å¯èƒ½æ›´é•¿ã€‚
-10ï¼‰ä¸»é¢˜ä¸­åŒ…å« PATCH
---------------------
+在等了几个星期åŽï¼Œç”¨å¸¦RESEND的主题é‡å‘è¡¥ä¸ä¹Ÿæ˜¯å¯ä»¥çš„::
-由于到linuså’Œlinux内核的电å­é‚®ä»¶æµé‡å¾ˆé«˜ï¼Œé€šå¸¸ä¼šåœ¨ä¸»é¢˜è¡Œå‰é¢åŠ ä¸Š[PATCH]
-å‰ç¼€. 这使Linus和其他内核开å‘人员更容易将补ä¸ä¸Žå…¶ä»–电å­é‚®ä»¶è®¨è®ºåŒºåˆ†å¼€ã€‚
+ [PATCH Vx RESEND] sub/sys: Condensed patch summary
-11)签署你的作å“-å¼€å‘者原始认è¯
--------------------------------
+当你å‘布补ä¸ï¼ˆç³»åˆ—)修改版的时候,ä¸è¦åŠ ä¸Šâ€œRESENDâ€â€”—“RESENDâ€åªé€‚用于é‡
+æ–°æ交之å‰æœªç»ä¿®æ”¹çš„è¡¥ä¸ï¼ˆç³»åˆ—)。
-为了加强对è°åšäº†ä½•äº‹çš„追踪,尤其是对那些é€è¿‡å¥½å‡ å±‚的维护者的补ä¸ï¼Œæˆ‘们
-建议在å‘é€å‡ºåŽ»çš„è¡¥ä¸ä¸ŠåŠ ä¸€ä¸ª “sign-off†的过程。
+ä¸»é¢˜ä¸­åŒ…å« PATCH
+----------------
-"sign-off" 是在补ä¸çš„注释的最åŽçš„简å•çš„一行文字,认è¯ä½ ç¼–写了它或者其他
+由于到Linuså’Œlinux-kernel的电å­é‚®ä»¶æµé‡å¾ˆé«˜ï¼Œé€šå¸¸ä¼šåœ¨ä¸»é¢˜è¡Œå‰é¢åŠ ä¸Š[PATCH]
+å‰ç¼€ã€‚这使Linus和其他内核开å‘人员更容易将补ä¸ä¸Žå…¶ä»–电å­é‚®ä»¶è®¨è®ºåŒºåˆ†å¼€ã€‚
+
+``git send-email`` 会自动为你加上。
+
+签署你的作å“——开å‘者æ¥æºè®¤è¯
+------------------------------
+
+为了加强对è°åšäº†ä½•äº‹çš„追踪,尤其是对那些é€è¿‡å¥½å‡ å±‚维护者æ‰æœ€ç»ˆåˆ°è¾¾çš„è¡¥ä¸ï¼Œæˆ‘
+们在通过邮件å‘é€çš„è¡¥ä¸ä¸Šå¼•å…¥äº†â€œç­¾ç½²ï¼ˆsign-off)â€æµç¨‹ã€‚
+
+“签署â€æ˜¯åœ¨è¡¥ä¸æ³¨é‡Šæœ€åŽçš„一行简å•æ–‡å­—,认è¯ä½ ç¼–写了它或者其他
人有æƒåŠ›å°†å®ƒä½œä¸ºå¼€æ”¾æºä»£ç çš„è¡¥ä¸ä¼ é€’。规则很简å•ï¼šå¦‚果你能认è¯å¦‚下信æ¯:
-å¼€å‘者æ¥æºè¯ä¹¦ 1.1
+å¼€å‘者æ¥æºè®¤è¯ 1.1
^^^^^^^^^^^^^^^^^^
对于本项目的贡献,我认è¯å¦‚下信æ¯ï¼š
- (a)这些贡献是完全或者部分的由我创建,我有æƒåˆ©ä»¥æ–‡ä»¶ä¸­æŒ‡å‡º
+ (a) 这些贡献是完全或者部分的由我创建,我有æƒåˆ©ä»¥æ–‡ä»¶ä¸­æŒ‡å‡º
的开放æºä»£ç è®¸å¯è¯æ交它;或者
- (b)这些贡献基于以å‰çš„工作,æ®æˆ‘所知,这些以å‰çš„工作å—æ°å½“的开放
- æºä»£ç è®¸å¯è¯ä¿æŠ¤ï¼Œè€Œä¸”,根æ®è®¸å¯è¯ï¼Œæˆ‘有æƒæ交修改åŽçš„贡献,
+
+ (b) 这些贡献基于以å‰çš„工作,æ®æˆ‘所知,这些以å‰çš„工作å—æ°å½“的开放
+ æºä»£ç è®¸å¯è¯ä¿æŠ¤ï¼Œè€Œä¸”,根æ®æ–‡ä»¶ä¸­æŒ‡å‡ºçš„许å¯è¯ï¼Œæˆ‘有æƒæ交修改åŽçš„贡献,
无论是完全还是部分由我创造,这些贡献都使用åŒä¸€ä¸ªå¼€æ”¾æºä»£ç è®¸å¯è¯
- (除éžæˆ‘被å…许用其它的许å¯è¯ï¼‰ï¼Œæ­£å¦‚文件中指出的;或者
- (c)这些贡献由认è¯ï¼ˆa),(b)或者(c)的人直接æ供给我,而
+ (除éžæˆ‘被å…许用其它的许å¯è¯ï¼‰ï¼›æˆ–者
+
+ (c) 这些贡献由认è¯ï¼ˆa),(b)或者(c)的人直接æ供给我,而
且我没有修改它。
- (d)我ç†è§£å¹¶åŒæ„这个项目和贡献是公开的,贡献的记录(包括我
- 一起æ交的个人记录,包括 sign-off )被永久维护并且å¯ä»¥å’Œè¿™ä¸ªé¡¹ç›®
+
+ (d) 我ç†è§£å¹¶åŒæ„这个项目和贡献是公开的,贡献的记录(包括我
+ 一起æ交的个人记录,包括sign-off)被永久维护并且å¯ä»¥å’Œè¿™ä¸ªé¡¹ç›®
或者开放æºä»£ç çš„许å¯è¯åŒæ­¥åœ°å†å‘行。
那么加入这样一行::
- Signed-off-by: Random J Developer <random@developer.example.org>
-
-使用你的真å(抱歉,ä¸èƒ½ä½¿ç”¨å‡å或者匿å。)
-
-有人在最åŽåŠ ä¸Šæ ‡ç­¾ã€‚现在这些东西会被忽略,但是你å¯ä»¥è¿™æ ·åšï¼Œæ¥æ ‡è®°å…¬å¸
-内部的过程,或者åªæ˜¯æŒ‡å‡ºå…³äºŽ sign-off 的一些特殊细节。
-
-如果您是å­ç³»ç»Ÿæˆ–分支维护人员,有时需è¦ç¨å¾®ä¿®æ”¹æ”¶åˆ°çš„è¡¥ä¸ï¼Œä»¥ä¾¿åˆå¹¶å®ƒä»¬ï¼Œ
-因为树和æ交者中的代ç ä¸å®Œå…¨ç›¸åŒã€‚如果你严格éµå®ˆè§„则(c),你应该è¦æ±‚æ交者
-é‡æ–°å‘布,但这完全是在浪费时间和精力。规则(b)å…许您调整代ç ï¼Œä½†æ˜¯æ›´æ”¹ä¸€ä¸ª
-æ交者的代ç å¹¶è®©ä»–认å¯æ‚¨çš„错误是éžå¸¸ä¸ç¤¼è²Œçš„。è¦è§£å†³æ­¤é—®é¢˜ï¼Œå»ºè®®åœ¨æœ€åŽä¸€ä¸ª
-由签å行和您的行之间添加一行,指示更改的性质。虽然这并ä¸æ˜¯å¼ºåˆ¶æ€§çš„,但似乎
-在æè¿°å‰åŠ ä¸Šæ‚¨çš„邮件和/或姓å(全部用方括å·æ‹¬èµ·æ¥ï¼‰ï¼Œè¿™è¶³ä»¥è®©äººæ³¨æ„到您对最
-åŽä¸€åˆ†é’Ÿçš„更改负有责任。例如::
-
- Signed-off-by: Random J Developer <random@developer.example.org>
- [lucky@maintainer.example.org: struct foo moved from foo.c to foo.h]
- Signed-off-by: Lucky K Maintainer <lucky@maintainer.example.org>
-
-如果您维护一个稳定的分支机构,åŒæ—¶å¸Œæœ›å¯¹ä½œè€…进行致谢ã€è·Ÿè¸ªæ›´æ”¹ã€åˆå¹¶ä¿®å¤å¹¶
-ä¿æŠ¤æ交者ä¸å—投诉,那么这ç§åšæ³•å°¤å…¶æœ‰ç”¨ã€‚请注æ„,在任何情况下都ä¸èƒ½æ›´æ”¹ä½œè€…
-的ID(From 头),因为它是出现在更改日志中的标识。
-
-对回åˆï¼ˆback-porters)的特别说明:在æ交消æ¯çš„顶部(主题行之åŽï¼‰æ’入一个补ä¸
-çš„èµ·æºæŒ‡ç¤ºä¼¼ä¹Žæ˜¯ä¸€ç§å¸¸è§ä¸”有用的实践,以便于跟踪。例如,下é¢æ˜¯æˆ‘们在3.x稳定
-版本中看到的内容::
-
- Date: Tue Oct 7 07:26:38 2014 -0400
-
- libata: Un-break ATA blacklist
-
- commit 1c40279960bcd7d52dbdf1d466b20d24b99176c8 upstream.
-
-还有, 这里是一个旧版内核中的一个回åˆè¡¥ä¸::
+ Signed-off-by: Random J Developer <random@developer.example.org>
- Date: Tue May 13 22:12:27 2008 +0200
+使用你的真å(抱歉,ä¸èƒ½ä½¿ç”¨å‡å或者匿å。)如果使用 ``git commit -s`` çš„è¯
+将会自动完æˆã€‚撤销也应当包å«â€œSigned-off-byâ€ï¼Œ ``git revert -s`` 会帮你æžå®šã€‚
- wireless, airo: waitbusy() won't delay
+有些人会在最åŽåŠ ä¸Šé¢å¤–的标签。现在这些东西会被忽略,但是你å¯ä»¥è¿™æ ·åšï¼Œæ¥æ ‡è®°
+å…¬å¸å†…部的过程,或者åªæ˜¯æŒ‡å‡ºå…³äºŽç­¾ç½²çš„一些特殊细节。
- [backport of 2.6 commit b7acbdfbd1f277c1eb23f344f899cfa4cd0bf36a]
+作者签署之åŽçš„任何其他签署(Signed-off-by:'s)å‡æ¥è‡ªå¤„ç†å’Œä¼ é€’è¡¥ä¸çš„人员,但
+未å‚与其开å‘。签署链应当å映补ä¸ä¼ æ’­åˆ°ç»´æŠ¤è€…并最终传播到Linus所ç»è¿‡çš„ **真实**
+路径,首个签署指明å•ä¸ªä½œè€…的主è¦ä½œè€…身份。
-12)何时使用Acked-by:,CC:,和Co-Developed by:
-----------------------------------------------
+何时使用Acked-by:,CC:,和Co-Developed by:
+------------------------------------------
-Singed-off-by: 标记表示签å者å‚与了补ä¸çš„å¼€å‘,或者他/她在补ä¸çš„传递路径中。
+Singed-off-by: 标签表示签å者å‚与了补ä¸çš„å¼€å‘,或者他/她在补ä¸çš„传递路径中。
-如果一个人没有直接å‚与补ä¸çš„准备或处ç†ï¼Œä½†å¸Œæœ›è¡¨ç¤ºå¹¶è®°å½•ä»–们对补ä¸çš„批准,
-那么他们å¯ä»¥è¦æ±‚在补ä¸çš„å˜æ›´æ—¥å¿—中添加一个 Acked-by:
+如果一个人没有直接å‚与补ä¸çš„准备或处ç†ï¼Œä½†å¸Œæœ›è¡¨ç¤ºå¹¶è®°å½•ä»–们对补ä¸çš„批准/赞æˆï¼Œ
+那么他们å¯ä»¥è¦æ±‚在补ä¸çš„å˜æ›´æ—¥å¿—中添加一个Acked-by:。
-Acked-by:通常由å—å½±å“代ç çš„维护者使用,当该维护者既没有贡献也没有转å‘è¡¥ä¸æ—¶ã€‚
+Acked-by: 通常由å—å½±å“代ç çš„维护者使用,当该维护者既没有贡献也没有转å‘è¡¥ä¸æ—¶ã€‚
-Acked-by: ä¸åƒç­¾å­—人那样正å¼ã€‚这是一个记录,确认人至少审查了补ä¸ï¼Œå¹¶è¡¨ç¤ºæŽ¥å—。
-因此,补ä¸åˆå¹¶æœ‰æ—¶ä¼šæ‰‹åŠ¨å°†Acker的“Yep,looks good to meâ€è½¬æ¢ä¸º Acked-By:(但
+Acked-by: ä¸åƒç­¾ç½²é‚£æ ·æ­£å¼ã€‚这是一个记录,确认人至少审阅了补ä¸ï¼Œå¹¶è¡¨ç¤ºæŽ¥å—。
+因此,补ä¸åˆå¹¶æœ‰æ—¶ä¼šæ‰‹åŠ¨å°†Acker的“Yep,looks good to meâ€è½¬æ¢ä¸º Acked-By:(但
请注æ„,通常最好è¦æ±‚一个明确的Ack)。
Acked-by:ä¸ä¸€å®šè¡¨ç¤ºå¯¹æ•´ä¸ªè¡¥ä¸çš„确认。例如,如果一个补ä¸å½±å“多个å­ç³»ç»Ÿï¼Œå¹¶ä¸”
-有一个:æ¥è‡ªä¸€ä¸ªå­ç³»ç»Ÿç»´æŠ¤è€…,那么这通常表示åªç¡®è®¤å½±å“维护者代ç çš„部分。这里
-应该仔细判断。如有疑问,应å‚考邮件列表档案中的原始讨论。
+有一个æ¥è‡ªæŸä¸ªå­ç³»ç»Ÿç»´æŠ¤è€…çš„Acked-By:,那么这通常表示åªç¡®è®¤å½±å“维护者代ç çš„部
+分。这里应该仔细判断。如有疑问,应å‚考邮件列表存档中的原始讨论。
-如果æŸäººæœ‰æœºä¼šå¯¹è¡¥ä¸è¿›è¡Œè¯„论,但没有æ供此类评论,您å¯ä»¥é€‰æ‹©åœ¨è¡¥ä¸ä¸­æ·»åŠ  ``Cc:``
-这是唯一一个标签,它å¯ä»¥åœ¨æ²¡æœ‰è¢«å®ƒå‘½å的人显å¼æ“作的情况下添加,但它应该表明
-这个人是在补ä¸ä¸ŠæŠ„é€çš„。讨论中包å«äº†æ½œåœ¨åˆ©ç›Šç›¸å…³æ–¹ã€‚
+如果æŸäººæœ¬åº”有机会对补ä¸è¿›è¡Œè¯„论,但没有æ供此类评论,您å¯ä»¥é€‰æ‹©åœ¨è¡¥ä¸ä¸­æ·»åŠ 
+``Cc:`` 这是唯一å¯ä»¥åœ¨æ²¡æœ‰è¢«è¯¥äººæ˜Žç¡®åŒæ„的情况下添加的标签——但它应该表明
+这个人是在补ä¸ä¸ŠæŠ„é€çš„。此标签记录了讨论中包å«çš„潜在利益相关方。
Co-developed-by: 声明补ä¸æ˜¯ç”±å¤šä¸ªå¼€å‘人员共åŒåˆ›å»ºçš„;当几个人在一个补ä¸ä¸Šå·¥
-作时,它用于将属性赋予共åŒä½œè€…(除了 From: 所赋予的作者之外)。因为
-Co-developed-by: 表示作者身份,所以æ¯ä¸ªå…±åŒå¼€å‘人:必须紧跟在相关åˆä½œä½œè€…çš„
-ç­¾å之åŽã€‚标准的签核程åºè¦æ±‚:标记的签核顺åºåº”å°½å¯èƒ½å映补ä¸çš„时间历å²ï¼Œè€Œä¸
-管作者是通过 From :还是由 Co-developed-by: å…±åŒå¼€å‘的。值得注æ„的是,最åŽä¸€
-个签字人:必须始终是æ交补ä¸çš„å¼€å‘人员。
+作时,它用于给出共åŒä½œè€…(除了From:所给出的作者之外)。因为Co-developed-by:
+表示作者身份,所以æ¯ä¸ªCo-developed-by:必须紧跟在相关åˆä½œä½œè€…的签署之åŽã€‚标准
+签署程åºè¦æ±‚Singed-off-by:标签的顺åºåº”å°½å¯èƒ½å映补ä¸çš„时间历å²ï¼Œæ— è®ºä½œè€…是通
+过From:还是Co-developed-by:表明。值得注æ„的是,最åŽä¸€ä¸ªSinged-off-by:必须是
+æ交补ä¸çš„å¼€å‘人员。
-注æ„,当作者也是电å­é‚®ä»¶æ ‡é¢˜â€œå‘件人:â€è¡Œä¸­åˆ—出的人时,“From: †标记是å¯é€‰çš„。
+注æ„,如果From:作者也是电å­é‚®ä»¶æ ‡é¢˜çš„From:行中列出的人,则From:标签是å¯é€‰çš„。
-作者æ交的补ä¸ç¨‹åºç¤ºä¾‹::
+被From:作者æ交的补ä¸ç¤ºä¾‹::
<changelog>
@@ -423,7 +374,7 @@ Co-developed-by: 表示作者身份,所以æ¯ä¸ªå…±åŒå¼€å‘人:必须紧跟
Signed-off-by: Second Co-Author <second@coauthor.example.org>
Signed-off-by: From Author <from@author.example.org>
-åˆä½œå¼€å‘者æ交的补ä¸ç¤ºä¾‹::
+被åˆä½œå¼€å‘者æ交的补ä¸ç¤ºä¾‹::
From: From Author <from@author.example.org>
@@ -436,76 +387,85 @@ Co-developed-by: 表示作者身份,所以æ¯ä¸ªå…±åŒå¼€å‘人:必须紧跟
Signed-off-by: Submitting Co-Author <sub@coauthor.example.org>
-13)使用报告人:ã€æµ‹è¯•äººï¼šã€å®¡æ ¸äººï¼šã€å»ºè®®äººï¼šã€ä¿®å¤äººï¼š
---------------------------------------------------------
+使用Reported-by:ã€Tested-by:ã€Reviewed-by:ã€Suggested-by:å’ŒFixes:
+-----------------------------------------------------------------
Reported-by: 给那些å‘现错误并报告错误的人致谢,它希望激励他们在将æ¥å†æ¬¡å¸®åŠ©
-我们。请注æ„,如果bug是以ç§æœ‰æ–¹å¼æŠ¥å‘Šçš„,那么在使用Reported-by标记之å‰ï¼Œè¯·
-先请求æƒé™ã€‚
+我们。请注æ„,如果bug是以ç§æœ‰æ–¹å¼æŠ¥å‘Šçš„,那么在使用Reported-by标签之å‰ï¼Œè¯·
+先请求许å¯ã€‚此标签是为Bug设计的;请ä¸è¦å°†å…¶ç”¨äºŽæ„Ÿè°¢åŠŸèƒ½è¯·æ±‚。
-Tested-by: 标记表示补ä¸å·²ç”±æŒ‡å®šçš„人(在æŸäº›çŽ¯å¢ƒä¸­ï¼‰æˆåŠŸæµ‹è¯•ã€‚这个标签通知
-维护人员已ç»æ‰§è¡Œäº†ä¸€äº›æµ‹è¯•ï¼Œä¸ºå°†æ¥çš„è¡¥ä¸æ供了一ç§å®šä½æµ‹è¯•äººå‘˜çš„方法,并确
-ä¿æµ‹è¯•äººå‘˜çš„信誉。
+Tested-by: 标签表示补ä¸å·²ç”±æŒ‡å®šçš„人(在æŸäº›çŽ¯å¢ƒä¸­ï¼‰æˆåŠŸæµ‹è¯•ã€‚这个标签通知
+维护人员已ç»æ‰§è¡Œäº†ä¸€äº›æµ‹è¯•ï¼Œä¸ºå°†æ¥çš„è¡¥ä¸æ供了一ç§å®šä½æµ‹è¯•äººå‘˜çš„方法,并彰显测试人员的功劳。
-Reviewed-by:相å,根æ®å®¡æŸ¥äººçš„声明,表明该补ä¸å·²è¢«å®¡æŸ¥å¹¶è¢«è®¤ä¸ºæ˜¯å¯æŽ¥å—的:
+Reviewed-by:根æ®å®¡é˜…者的监ç£å£°æ˜Žï¼Œè¡¨æ˜Žè¯¥è¡¥ä¸å·²è¢«å®¡é˜…并被认为是å¯æŽ¥å—的:
-审查人的监ç£å£°æ˜Ž
+审阅者的监ç£å£°æ˜Ž
^^^^^^^^^^^^^^^^
-通过æ供我的 Reviewed-by,我声明:
+通过æ供我的Reviewed-by:标签,我声明:
- (a) 我已ç»å¯¹è¿™ä¸ªè¡¥ä¸è¿›è¡Œäº†ä¸€æ¬¡æŠ€æœ¯å®¡æŸ¥ï¼Œä»¥è¯„估它是å¦é€‚åˆè¢«åŒ…å«åˆ°
+ (a) 我已ç»å¯¹è¿™ä¸ªè¡¥ä¸è¿›è¡Œäº†ä¸€æ¬¡æŠ€æœ¯å®¡é˜…,以评估它是å¦é€‚åˆè¢«åŒ…å«åˆ°
主线内核中。
(b) 与补ä¸ç›¸å…³çš„任何问题ã€é¡¾è™‘或问题都已å馈给æ交者。我对æ交者对
我的评论的回应感到满æ„。
- (c) 虽然这一æ交å¯èƒ½ä¼šæ”¹è¿›ä¸€äº›ä¸œè¥¿ï¼Œä½†æˆ‘相信,此时,(1)对内核
+ (c) 虽然这一æ交å¯èƒ½ä»å¯è¢«æ”¹è¿›ï¼Œä½†æˆ‘相信,此时,(1)对内核
进行了有价值的修改,(2)没有包å«äº‰è®ºä¸­æ¶‰åŠçš„已知问题。
- (d) 虽然我已ç»å®¡æŸ¥äº†è¡¥ä¸å¹¶è®¤ä¸ºå®ƒæ˜¯å¥å…¨çš„,但我ä¸ä¼šï¼ˆé™¤éžå¦æœ‰æ˜Žç¡®
- 说明)作出任何ä¿è¯æˆ–ä¿è¯å®ƒå°†åœ¨ä»»ä½•ç»™å®šæƒ…况下实现其规定的目的
+ (d) 虽然我已ç»å®¡é˜…了补ä¸å¹¶è®¤ä¸ºå®ƒæ˜¯å¥å…¨çš„,但我ä¸ä¼šï¼ˆé™¤éžå¦æœ‰æ˜Žç¡®
+ 说明)作出任何ä¿è¯æˆ–æ‹…ä¿å®ƒä¼šåœ¨ä»»ä½•ç»™å®šæƒ…况下实现其规定的目的
或正常è¿è¡Œã€‚
-Reviewed-by 是一ç§è§‚点声明,å³è¡¥ä¸æ˜¯å¯¹å†…核的适当修改,没有任何é—留的严é‡æŠ€æœ¯
-问题。任何感兴趣的审阅者(完æˆå·¥ä½œçš„人)都å¯ä»¥ä¸ºä¸€ä¸ªè¡¥ä¸æ供一个 Review-by
-标签。此标签用于å‘审阅者æ供致谢,并通知维护者已在修补程åºä¸Šå®Œæˆçš„审阅程度。
-Reviewed-by: 当由已知了解主题区域并执行彻底检查的审阅者æ供时,通常会增加
+Reviewed-by是一ç§è§‚点声明,å³è¡¥ä¸æ˜¯å¯¹å†…核的适当修改,没有任何é—留的严é‡æŠ€æœ¯
+问题。任何感兴趣的审阅者(完æˆå·¥ä½œçš„人)都å¯ä»¥ä¸ºä¸€ä¸ªè¡¥ä¸æ供一个Reviewed-by
+标签。此标签用于å‘审阅者æ供致谢,并通知维护者补ä¸çš„审阅进度。
+当Reviewed-by:标签由已知了解主题区域并执行彻底检查的审阅者æ供时,通常会增加
è¡¥ä¸è¿›å…¥å†…核的å¯èƒ½æ€§ã€‚
+一旦从测试人员或审阅者的“Tested-byâ€å’Œâ€œReviewed-byâ€æ ‡ç­¾å‡ºçŽ°åœ¨é‚®ä»¶åˆ—表中,
+作者应在å‘é€ä¸‹ä¸€ä¸ªç‰ˆæœ¬æ—¶å°†å…¶æ·»åŠ åˆ°é€‚用的补ä¸ä¸­ã€‚但是,如果补ä¸åœ¨ä»¥ä¸‹ç‰ˆæœ¬ä¸­å‘
+生了实质性更改,这些标签å¯èƒ½ä¸å†é€‚用,因此应该删除。通常,在补ä¸æ›´æ”¹æ—¥å¿—中
+(在 ``---`` 分隔符之åŽï¼‰åº”该æ到删除æŸäººçš„测试者或审阅者标签。
+
Suggested-by: 表示补ä¸çš„想法是由指定的人æ出的,并确ä¿å°†æ­¤æƒ³æ³•å½’功于指定的
人。请注æ„,未ç»è®¸å¯ï¼Œä¸å¾—添加此标签,特别是如果该想法未在公共论å›ä¸Šå‘布。
-这就是说,如果我们勤快地致谢我们的创æ„者,他们很有希望在未æ¥å¾—到鼓舞,å†æ¬¡
+也就是说,如果我们勤快地致谢创æ„æ供者,他们将å—到鼓舞,很有希望在未æ¥å†æ¬¡
帮助我们。
-Fixes: 指示补ä¸åœ¨ä»¥å‰çš„æ交中修å¤äº†ä¸€ä¸ªé—®é¢˜ã€‚它å¯ä»¥å¾ˆå®¹æ˜“地确定错误的æ¥æºï¼Œ
-这有助于检查错误修å¤ã€‚这个标记还帮助稳定内核团队确定应该接收修å¤çš„稳定内核
-版本。这是指示补ä¸ä¿®å¤çš„错误的首选方法。请å‚阅 :ref:`cn_describe_changes`
-æ述您的更改以了解更多详细信æ¯ã€‚
+Fixes: 指示补ä¸ä¿®å¤äº†ä¹‹å‰æ交的一个问题。它å¯ä»¥ä¾¿äºŽç¡®å®šé”™è¯¯çš„æ¥æºï¼Œè¿™æœ‰åŠ©äºŽ
+检查错误修å¤ã€‚这个标签还帮助稳定内核团队确定应该接收修å¤çš„稳定内核版本。这是
+指示补ä¸ä¿®å¤çš„错误的首选方法。请å‚阅 :ref:`zh_describe_changes` 了解更多信æ¯ã€‚
-.. _cn_the_canonical_patch_format:
+.. note::
-12)标准补ä¸æ ¼å¼
-----------------
+ 附加Fixes:标签ä¸ä¼šæ”¹å˜ç¨³å®šå†…核规则æµç¨‹ï¼Œä¹Ÿä¸æ”¹å˜æ‰€æœ‰ç¨³å®šç‰ˆè¡¥ä¸æŠ„é€
+ stable@vger.kernel.orgçš„è¦æ±‚。有关更多信æ¯ï¼Œè¯·é˜…读
+ Documentation/translations/zh_CN/process/stable-kernel-rules.rst 。
+
+.. _zh_the_canonical_patch_format:
+
+标准补ä¸æ ¼å¼
+------------
本节æ述如何格å¼åŒ–è¡¥ä¸æœ¬èº«ã€‚请注æ„,如果您的补ä¸å­˜å‚¨åœ¨ ``Git`` 存储库中,则
-å¯ä»¥ä½¿ç”¨ ``git format-patch`` 进行正确的补ä¸æ ¼å¼è®¾ç½®ã€‚但是,这些工具无法创建
+å¯ä»¥ä½¿ç”¨ ``git format-patch`` 进行正确的补ä¸æ ¼å¼åŒ–。但是,这些工具无法创建
å¿…è¦çš„文本,因此请务必阅读下é¢çš„说明。
-标准的补ä¸ï¼Œæ ‡é¢˜è¡Œæ˜¯::
+标准的补ä¸æ ‡é¢˜è¡Œæ˜¯::
Subject: [PATCH 001/123] å­ç³»ç»Ÿ:一å¥è¯æ¦‚è¿°
-标准补ä¸çš„信体存在如下部分:
+标准补ä¸çš„信体包å«å¦‚下部分:
- - 一个 "from" 行指出补ä¸ä½œè€…。åŽè·Ÿç©ºè¡Œï¼ˆä»…当å‘é€ä¿®è¡¥ç¨‹åºçš„人ä¸æ˜¯ä½œè€…æ—¶æ‰éœ€è¦ï¼‰ã€‚
+ - 一个 ``from`` 行指出补ä¸ä½œè€…。åŽè·Ÿç©ºè¡Œï¼ˆä»…当å‘é€è¡¥ä¸çš„人ä¸æ˜¯ä½œè€…æ—¶æ‰éœ€è¦ï¼‰ã€‚
- - 解释的正文,行以75列包装,这将被å¤åˆ¶åˆ°æ°¸ä¹…å˜æ›´æ—¥å¿—æ¥æ述这个补ä¸ã€‚
+ - 说明文字,æ¯è¡Œæœ€é•¿75列,这将被å¤åˆ¶åˆ°æ°¸ä¹…å˜æ›´æ—¥å¿—æ¥æ述这个补ä¸ã€‚
- 一个空行
- - 上é¢æ述的“Signed-off-by†行,也将出现在更改日志中。
+ - 上述的 ``Signed-off-by:`` 行,也将出现在更改日志中。
- åªåŒ…å« ``---`` 的标记线。
@@ -513,29 +473,29 @@ Fixes: 指示补ä¸åœ¨ä»¥å‰çš„æ交中修å¤äº†ä¸€ä¸ªé—®é¢˜ã€‚它å¯ä»¥å¾ˆå®¹æ
- 实际补ä¸ï¼ˆ ``diff`` 输出)。
-标题行的格å¼ï¼Œä½¿å¾—对标题行按字æ¯åºæŽ’åºéžå¸¸çš„容易 - 很多 e-mail 客户端都
-å¯ä»¥æ”¯æŒ - 因为åºåˆ—å·æ˜¯ç”¨é›¶å¡«å……的,所以按数字排åºå’ŒæŒ‰å­—æ¯æŽ’åºæ˜¯ä¸€æ ·çš„。
+标题行的格å¼ï¼Œä½¿å¾—对标题行按字æ¯åºæŽ’åºéžå¸¸çš„容易——很多邮件客户端都
+å¯ä»¥æ”¯æŒâ€”—因为åºåˆ—å·æ˜¯ç”¨é›¶å¡«å……的,所以按数字排åºå’ŒæŒ‰å­—æ¯æŽ’åºæ˜¯ä¸€æ ·çš„。
-e-mail 标题中的“å­ç³»ç»Ÿâ€æ ‡è¯†å“ªä¸ªå†…æ ¸å­ç³»ç»Ÿå°†è¢«æ‰“è¡¥ä¸ã€‚
+邮件标题中的“å­ç³»ç»Ÿâ€æ ‡è¯†å“ªä¸ªå†…æ ¸å­ç³»ç»Ÿå°†è¢«æ‰“è¡¥ä¸ã€‚
-e-mail 标题中的“一å¥è¯æ¦‚è¿°â€æ‰¼è¦çš„æè¿° e-mail 中的补ä¸ã€‚“一å¥è¯æ¦‚è¿°â€
+邮件标题中的“一å¥è¯æ¦‚è¿°â€æ‰¼è¦çš„æ述邮件中的补ä¸ã€‚“一å¥è¯æ¦‚è¿°â€
ä¸åº”该是一个文件å。对于一个补ä¸ç³»åˆ—(“补ä¸ç³»åˆ—â€æŒ‡ä¸€ç³»åˆ—的多个相关补
ä¸ï¼‰ï¼Œä¸è¦å¯¹æ¯ä¸ªè¡¥ä¸éƒ½ä½¿ç”¨åŒæ ·çš„“一å¥è¯æ¦‚è¿°â€ã€‚
-è®°ä½ e-mail 的“一å¥è¯æ¦‚è¿°â€ä¼šæˆä¸ºè¯¥è¡¥ä¸çš„全局唯一标识。它会蔓延到 git
+è®°ä½é‚®ä»¶çš„“一å¥è¯æ¦‚è¿°â€ä¼šæˆä¸ºè¯¥è¡¥ä¸çš„全局唯一标识。它会进入 ``git``
的改动记录里。然åŽâ€œä¸€å¥è¯æ¦‚è¿°â€ä¼šè¢«ç”¨åœ¨å¼€å‘者的讨论里,用æ¥æŒ‡ä»£è¿™ä¸ªè¡¥
-ä¸ã€‚用户将希望通过 google æ¥æœç´¢"一å¥è¯æ¦‚è¿°"æ¥æ‰¾åˆ°é‚£äº›è®¨è®ºè¿™ä¸ªè¡¥ä¸çš„æ–‡
+ä¸ã€‚用户将希望通过æœç´¢å¼•æ“Žæœç´¢â€œä¸€å¥è¯æ¦‚è¿°â€æ¥æ‰¾åˆ°é‚£äº›è®¨è®ºè¿™ä¸ªè¡¥ä¸çš„æ–‡
章。当人们在两三个月åŽä½¿ç”¨è¯¸å¦‚ ``gitk`` 或 ``git log --oneline`` 之类
的工具查看数åƒä¸ªè¡¥ä¸æ—¶ï¼Œä¹Ÿä¼šå¾ˆå¿«çœ‹åˆ°å®ƒã€‚
出于这些原因,概述必须ä¸è¶…过70-75个字符,并且必须æè¿°è¡¥ä¸çš„更改以åŠä¸º
-什么需è¦è¡¥ä¸ã€‚æ—¢è¦ç®€æ´åˆè¦æ述性很有挑战性,但写得好的概述应该这样åšã€‚
+什么需è¦è¡¥ä¸ã€‚æ—¢è¦ç®€æ´åˆè¦æ述性很有挑战性,但写得好的概述应该这样。
概述的å‰ç¼€å¯ä»¥ç”¨æ–¹æ‹¬å·æ‹¬èµ·æ¥ï¼šâ€œSubject: [PATCH <tag>...] <概述>â€ã€‚标记
ä¸è¢«è§†ä¸ºæ¦‚述的一部分,而是æ述应该如何处ç†è¡¥ä¸ã€‚如果补ä¸çš„多个版本已å‘
-é€å‡ºæ¥ä»¥å“应评审(å³â€œv1,v2,v3â€ï¼‰æˆ–“rfcâ€ï¼Œä»¥æŒ‡ç¤ºè¯„审请求,那么通用标记
-å¯èƒ½åŒ…括版本æ述符。如果一个补ä¸ç³»åˆ—中有四个补ä¸ï¼Œé‚£ä¹ˆå„个补ä¸å¯ä»¥è¿™æ ·
-ç¼–å·ï¼š1/4ã€2/4ã€3/4ã€4/4。这å¯ä»¥ç¡®ä¿å¼€å‘人员了解补ä¸åº”用的顺åºï¼Œå¹¶ä¸”他们
+é€å‡ºæ¥ä»¥å“应评审(å³â€œv1,v2,v3â€ï¼‰åˆ™å¿…须包å«ç‰ˆæœ¬å·ï¼Œæˆ–包å«â€œRFCâ€ä»¥æŒ‡ç¤º
+评审请求。如果一个补ä¸ç³»åˆ—中有四个补ä¸ï¼Œé‚£ä¹ˆå„个补ä¸å¯ä»¥è¿™æ ·ç¼–å·ï¼š1/4ã€2/4ã€
+3/4ã€4/4。这å¯ä»¥ç¡®ä¿å¼€å‘人员了解补ä¸åº”用的顺åºï¼Œä¸”
å·²ç»æŸ¥çœ‹æˆ–应用了补ä¸ç³»åˆ—中的所有补ä¸ã€‚
一些标题的例å­::
@@ -543,95 +503,134 @@ e-mail 标题中的“一å¥è¯æ¦‚è¿°â€æ‰¼è¦çš„æè¿° e-mail 中的补ä¸ã€‚â€
Subject: [patch 2/5] ext2: improve scalability of bitmap searching
Subject: [PATCHv2 001/207] x86: fix eflags tracking
-"From" 行是信体里的最上é¢ä¸€è¡Œï¼Œå…·æœ‰å¦‚下格å¼ï¼š
+``From`` 行是信体里的最上é¢ä¸€è¡Œï¼Œå…·æœ‰å¦‚下格å¼::
+
From: Patch Author <author@example.com>
-"From" 行指明在永久改动日志里,è°ä¼šè¢«ç¡®è®¤ä¸ºä½œè€…。如果没有 "From" 行,那
-么邮件头里的 "From: " 行会被用æ¥å†³å®šæ”¹åŠ¨æ—¥å¿—中的作者。
+``From`` 行指明在永久改动日志里,è°ä¼šè¢«ç¡®è®¤ä¸ºä½œè€…。如果没有 ``From`` 行,那
+么邮件头里的 ``From:`` 行会被用æ¥å†³å®šæ”¹åŠ¨æ—¥å¿—中的作者。
-说明的主题将会被æ交到永久的æºä»£ç æ”¹åŠ¨æ—¥å¿—里,因此对那些早已ç»ä¸è®°å¾—å’Œ
-这个补ä¸ç›¸å…³çš„讨论细节的有能力的读者æ¥è¯´ï¼Œæ˜¯æœ‰æ„义的。包括补ä¸ç¨‹åºå®šä½
-错误的(内核日志消æ¯ã€OOPS消æ¯ç­‰ï¼‰ç—‡çŠ¶ï¼Œå¯¹äºŽæœç´¢æ交日志以寻找适用补ä¸çš„人
-尤其有用。如果一个补ä¸ä¿®å¤äº†ä¸€ä¸ªç¼–译失败,那么å¯èƒ½ä¸éœ€è¦åŒ…å«æ‰€æœ‰ç¼–译失败;
+说明文字将会被æ交到永久的æºä»£ç æ”¹åŠ¨æ—¥å¿—里,因此应针对那些早已ç»ä¸è®°å¾—和这
+个补ä¸ç›¸å…³çš„讨论细节的读者。包括补ä¸å¤„ç†çš„故障症状(内核日志消æ¯ã€oops消æ¯
+等),这对于å¯èƒ½æ­£åœ¨æœç´¢æ交日志以查找适用补ä¸çš„人特别有用。文本应该写得如
+此详细,以便在数周ã€æ•°æœˆç”šè‡³æ•°å¹´åŽé˜…读时,能够为读者æ供所需的细节信æ¯ï¼Œä»¥
+掌æ¡åˆ›å»ºè¡¥ä¸çš„ **原因** 。
+
+如果一个补ä¸ä¿®å¤äº†ä¸€ä¸ªç¼–译失败,那么å¯èƒ½ä¸éœ€è¦åŒ…å« *所有* 编译失败;
åªè¦è¶³å¤Ÿè®©æœç´¢è¡¥ä¸çš„人能够找到它就行了。与概述一样,既è¦ç®€æ´åˆè¦æ述性。
-"---" 标记行对于补ä¸å¤„ç†å·¥å…·è¦æ‰¾åˆ°å“ªé‡Œæ˜¯æ”¹åŠ¨æ—¥å¿—ä¿¡æ¯çš„结æŸï¼Œæ˜¯ä¸å¯ç¼ºå°‘
+``---`` 标记行对于补ä¸å¤„ç†å·¥å…·è¦æ‰¾åˆ°å“ªé‡Œæ˜¯æ”¹åŠ¨æ—¥å¿—ä¿¡æ¯çš„结æŸï¼Œæ˜¯ä¸å¯ç¼ºå°‘
的。
-对于 "---" 标记之åŽçš„é¢å¤–注解,一个好的用途就是用æ¥å†™ diffstat,用æ¥æ˜¾
-示修改了什么文件和æ¯ä¸ªæ–‡ä»¶éƒ½å¢žåŠ å’Œåˆ é™¤äº†å¤šå°‘行。diffstat 对于比较大的补
-ä¸ç‰¹åˆ«æœ‰ç”¨ã€‚其余那些åªæ˜¯å’Œæ—¶åˆ»æˆ–者开å‘者相关的注解,ä¸åˆé€‚放到永久的改
-动日志里的,也应该放这里。
-使用 diffstat的选项 "-p 1 -w 70" 这样文件å就会从内核æºä»£ç æ ‘的目录开始
+对于 ``---`` 标记之åŽçš„é¢å¤–注解,一个好的用途就是用æ¥å†™ ``diffstat`` ,用æ¥æ˜¾
+示修改了什么文件和æ¯ä¸ªæ–‡ä»¶éƒ½å¢žåŠ å’Œåˆ é™¤äº†å¤šå°‘行。 ``diffstat`` 对于比较大的补
+ä¸ç‰¹åˆ«æœ‰ç”¨ã€‚
+使用 ``diffstat`` 的选项 ``-p 1 -w 70`` 这样文件å就会从内核æºä»£ç æ ‘的目录开始
,ä¸ä¼šå ç”¨å¤ªå®½çš„空间(很容易适åˆ80列的宽度,也许会有一些缩进。)
+( ``git`` 默认会生æˆåˆé€‚çš„diffstat。)
+
+其余那些åªé€‚用于当时或者与维护者相关的注解,ä¸åˆé€‚放到永久的改动日志里的,也
+应该放这里。较好的例å­å°±æ˜¯ ``è¡¥ä¸æ›´æ”¹è®°å½•`` ,记录了v1å’Œv2版本补ä¸ä¹‹é—´çš„差异。
+
+请将此信æ¯æ”¾åœ¨å°†å˜æ›´æ—¥å¿—与补ä¸çš„其余部分分隔开的 ``---`` è¡Œ **之åŽ** 。版本
+ä¿¡æ¯ä¸æ˜¯æ交到gitæ ‘çš„å˜æ›´æ—¥å¿—的一部分。åªæ˜¯ä¾›å®¡é˜…人员使用的附加信æ¯ã€‚如果将
+其放置在æ交标记上方,则需è¦æ‰‹åŠ¨äº¤äº’æ‰èƒ½å°†å…¶åˆ é™¤ã€‚如果它ä½äºŽåˆ†éš”线以下,则在
+应用补ä¸æ—¶ä¼šè‡ªåŠ¨å‰¥ç¦»::
+
+ <commit message>
+ ...
+ Signed-off-by: Author <author@mail>
+ ---
+ V2 -> V3: Removed redundant helper function
+ V1 -> V2: Cleaned up coding style and addressed review comments
-在åŽé¢çš„å‚考资料中能看到适当的补ä¸æ ¼å¼çš„更多细节。
+ path/to/file | 5+++--
+ ...
-.. _cn_explicit_in_reply_to:
+在åŽé¢çš„å‚考资料中能看到正确补ä¸æ ¼å¼çš„更多细节。
-15) 明确回å¤é‚®ä»¶å¤´(In-Reply-To)
--------------------------------
+.. _zh_backtraces:
-手动添加回å¤è¡¥ä¸çš„的标题头(In-Reply_To:) 是有帮助的(例如,使用 ``git send-email`` )
-将补ä¸ä¸Žä»¥å‰çš„相关讨论关è”èµ·æ¥ï¼Œä¾‹å¦‚,将bugä¿®å¤ç¨‹åºé“¾æŽ¥åˆ°ç”µå­é‚®ä»¶å’Œbug报告。
+æ交消æ¯ä¸­çš„回溯(Backtraces)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+回溯有助于记录导致问题的调用链。然而,并éžæ‰€æœ‰å›žæº¯éƒ½æœ‰å¸®åŠ©ã€‚例如,早期引导调
+用链是独特而明显的。而é€å­—å¤åˆ¶å®Œæ•´çš„dmesg输出则会增加时间戳ã€æ¨¡å—列表ã€å¯„å­˜
+器和堆栈转储等分散注æ„力的信æ¯ã€‚
+
+因此,最有用的回溯应该从转储中æå–相关信æ¯ï¼Œä»¥æ›´å®¹æ˜“集中在真实问题上。下é¢æ˜¯
+一个剪è£è‰¯å¥½çš„回溯示例::
+
+ unchecked MSR access error: WRMSR to 0xd51 (tried to write 0x0000000000000064)
+ at rIP: 0xffffffffae059994 (native_write_msr+0x4/0x20)
+ Call Trace:
+ mba_wrmsr
+ update_domains
+ rdtgroup_mkdir
+
+.. _zh_explicit_in_reply_to:
+
+明确回å¤é‚®ä»¶å¤´ï¼ˆIn-Reply-To)
+-----------------------------
+
+手动添加回å¤è¡¥ä¸çš„的邮件头(In-Reply_To:)是有用的(例如,使用 ``git send-email`` ),
+å¯ä»¥å°†è¡¥ä¸ä¸Žä»¥å‰çš„相关讨论关è”èµ·æ¥ï¼Œä¾‹å¦‚,将bugè¡¥ä¸é“¾æŽ¥åˆ°ç”µå­é‚®ä»¶å’Œbug报告。
但是,对于多补ä¸ç³»åˆ—,最好é¿å…在回å¤æ—¶ä½¿ç”¨é“¾æŽ¥åˆ°è¯¥ç³»åˆ—的旧版本。这样,
-è¡¥ä¸çš„多个版本就ä¸ä¼šæˆä¸ºç”µå­é‚®ä»¶å®¢æˆ·ç«¯ä¸­æ— æ³•ç®¡ç†çš„引用åºåˆ—。如果链接有用,
+è¡¥ä¸çš„多个版本就ä¸ä¼šæˆä¸ºç”µå­é‚®ä»¶å®¢æˆ·ç«¯ä¸­æ— æ³•ç®¡ç†çš„引用树。如果链接有用,
å¯ä»¥ä½¿ç”¨ https://lore.kernel.org/ é‡å®šå‘器(例如,在å°é¢ç”µå­é‚®ä»¶æ–‡æœ¬ä¸­ï¼‰
链接到补ä¸ç³»åˆ—的早期版本。
-16) å‘é€git pull请求
---------------------
-
-如果您有一系列补ä¸ï¼Œé‚£ä¹ˆè®©ç»´æŠ¤äººå‘˜é€šè¿‡git pullæ“作将它们直接拉入å­ç³»ç»Ÿå­˜å‚¨
-库å¯èƒ½æ˜¯æœ€æ–¹ä¾¿çš„。但是,请注æ„,从开å‘人员那里获å–è¡¥ä¸æ¯”从邮件列表中获å–è¡¥
-ä¸éœ€è¦æ›´é«˜çš„信任度。因此,许多å­ç³»ç»Ÿç»´æŠ¤äººå‘˜ä¸æ„¿æ„接å—请求,特别是æ¥è‡ªæ–°çš„
-未知开å‘人员的请求。如果有疑问,您å¯ä»¥åœ¨å°é¢é‚®ä»¶ä¸­ä½¿ç”¨pull 请求作为补ä¸ç³»åˆ—
-正常å‘布的一个选项,让维护人员å¯ä»¥é€‰æ‹©ä½¿ç”¨å…¶ä¸­ä¹‹ä¸€ã€‚
-
-pull 请求的主题行中应该有[Git Pull]。请求本身应该在一行中包å«å­˜å‚¨åº“å称和
-感兴趣的分支;它应该看起æ¥åƒ::
+给出基础树信æ¯
+--------------
- Please pull from
+当其他开å‘人员收到您的补ä¸å¹¶å¼€å§‹å®¡é˜…时,知é“应该将您的工作放到代ç æ ‘历å²è®°å½•
+中的什么ä½ç½®é€šå¸¸å¾ˆæœ‰ç”¨ã€‚这对于自动化æŒç»­é›†æˆæµæ°´ï¼ˆCI)特别有用,这些æµæ°´çº¿è¯•
+图è¿è¡Œä¸€ç³»åˆ—测试,以便在维护人员开始审阅之å‰ç¡®å®šæ交的质é‡ã€‚
- git://jdelvare.pck.nerim.net/jdelvare-2.6 i2c-for-linus
+如果您使用 ``git format-patch`` 生æˆè¡¥ä¸ï¼Œåˆ™å¯ä»¥é€šè¿‡ ``--base`` 标志在æ交中
+自动包å«åŸºç¡€æ ‘ä¿¡æ¯ã€‚使用此选项最简å•ã€æœ€æ–¹ä¾¿çš„方法是é…åˆä¸»é¢˜åˆ†æ”¯::
- to get these changes:
+ $ git checkout -t -b my-topical-branch master
+ Branch 'my-topical-branch' set up to track local branch 'master'.
+ Switched to a new branch 'my-topical-branch'
+ [perform your edits and commits]
-pull 请求还应该包å«ä¸€æ¡æ•´ä½“消æ¯ï¼Œè¯´æ˜Žè¯·æ±‚中将包å«ä»€ä¹ˆï¼Œä¸€ä¸ªè¡¥ä¸æœ¬èº«çš„ ``Git shortlog``
-以åŠä¸€ä¸ªæ˜¾ç¤ºè¡¥ä¸ç³»åˆ—整体效果的 ``diffstat`` 。当然,将所有这些信æ¯æ”¶é›†åœ¨ä¸€èµ·
-的最简å•æ–¹æ³•æ˜¯è®© ``git`` 使用 ``git request-pull`` 命令为您完æˆè¿™äº›å·¥ä½œã€‚
+ $ git format-patch --base=auto --cover-letter -o outgoing/ master
+ outgoing/0000-cover-letter.patch
+ outgoing/0001-First-Commit.patch
+ outgoing/...
-一些维护人员(包括Linus)希望看到æ¥è‡ªå·²ç­¾åæ交的请求;这增加了他们对你的
-请求信心。特别是,在没有签å标签的情况下,Linus ä¸ä¼šä»Žåƒ Github 这样的公共
-托管站点拉请求。
+当你编辑 ``outgoing/0000-cover-letter.patch`` 时,您会注æ„到在它的最底部有一
+è¡Œ ``base-commit:`` 尾注,它为审阅者和CI工具æ供了足够的信æ¯ä»¥æ­£ç¡®æ‰§è¡Œ
+``git am`` 而ä¸å¿…担心冲çª::
-创建此类签å的第一步是生æˆä¸€ä¸ª GNRPG 密钥,并由一个或多个核心内核开å‘人员对
-其进行签å。这一步对新开å‘人员æ¥è¯´å¯èƒ½å¾ˆå›°éš¾ï¼Œä½†æ²¡æœ‰åŠžæ³•ç»•è¿‡å®ƒã€‚å‚加会议是
-找到å¯ä»¥ç­¾ç½²æ‚¨çš„密钥的开å‘人员的好方法。
+ $ git checkout -b patch-review [base-commit-id]
+ Switched to a new branch 'patch-review'
+ $ git am patches.mbox
+ Applying: First Commit
+ Applying: ...
-一旦您在Git 中准备了一个您希望有人拉的补ä¸ç³»åˆ—,就用 ``git tag -s`` 创建一
-个签å标记。这将创建一个新标记,标识该系列中的最åŽä¸€æ¬¡æ交,并包å«ç”¨æ‚¨çš„ç§
-钥创建的签å。您还å¯ä»¥å°†changelogæ ·å¼çš„消æ¯æ·»åŠ åˆ°æ ‡è®°ä¸­ï¼›è¿™æ˜¯ä¸€ä¸ªæ述拉请求
-整体效果的ç†æƒ³ä½ç½®ã€‚
+有关此选项的更多信æ¯ï¼Œè¯·å‚阅 ``man git-format-patch`` 。
-如果维护人员将è¦ä»Žä¸­æå–çš„æ ‘ä¸æ˜¯æ‚¨æ­£åœ¨ä½¿ç”¨çš„存储库,请ä¸è¦å¿˜è®°å°†å·²ç­¾å的标记
-显å¼æŽ¨é€åˆ°å…¬å…±æ ‘。
+.. note::
-生æˆæ‹‰è¯·æ±‚时,请使用已签å的标记作为目标。这样的命令å¯ä»¥å®žçŽ°::
+ ``--base`` 功能是在2.9.0版git中引入的。
- git request-pull master git://my.public.tree/linux.git my-signed-tag
+如果您ä¸ä½¿ç”¨gitæ ¼å¼åŒ–è¡¥ä¸ï¼Œä»ç„¶å¯ä»¥åŒ…å«ç›¸åŒçš„ ``base-commit`` 尾注,以指示您
+的工作所基于的树的æ交哈希。你应该在å°é¢é‚®ä»¶æˆ–系列的第一个补ä¸ä¸­æ·»åŠ å®ƒï¼Œå®ƒåº”
+该放在 ``---`` 行的下é¢æˆ–所有其他内容之åŽï¼Œå³åªåœ¨ä½ çš„电å­é‚®ä»¶ç­¾å之å‰ã€‚
å‚考文献
--------
-Andrew Morton, "The perfect patch" (tpp).
+Andrew Morton,“完美的补ä¸â€ï¼ˆtpp)
<https://www.ozlabs.org/~akpm/stuff/tpp.txt>
-Jeff Garzik, "Linux kernel patch submission format".
+Jeff Garzik,“Linux内核补ä¸æ交格å¼â€
<https://web.archive.org/web/20180829112450/http://linux.yyz.us/patch-format.html>
-Greg Kroah-Hartman, "How to piss off a kernel subsystem maintainer".
+Greg Kroah-Hartman,“如何惹æ¼å†…æ ¸å­ç³»ç»Ÿç»´æŠ¤äººå‘˜â€
<http://www.kroah.com/log/linux/maintainer.html>
<http://www.kroah.com/log/linux/maintainer-02.html>
@@ -644,16 +643,15 @@ Greg Kroah-Hartman, "How to piss off a kernel subsystem maintainer".
<http://www.kroah.com/log/linux/maintainer-06.html>
-NO!!!! No more huge patch bombs to linux-kernel@vger.kernel.org people!
+ä¸ï¼ï¼ï¼åˆ«å†å‘巨型补ä¸ç‚¸å¼¹ç»™linux-kernel@vger.kernel.org的人们了ï¼
<https://lore.kernel.org/r/20050711.125305.08322243.davem@davemloft.net>
-Kernel Documentation/process/coding-style.rst:
- :ref:`Documentation/translations/zh_CN/process/coding-style.rst <cn_codingstyle>`
+内核 Documentation/translations/zh_CN/process/coding-style.rst
-Linus Torvalds's mail on the canonical patch format:
+Linus Torvalds关于标准补ä¸æ ¼å¼çš„邮件
<https://lore.kernel.org/r/Pine.LNX.4.58.0504071023190.28951@ppc970.osdl.org>
-Andi Kleen, "On submitting kernel patches"
- Some strategies to get difficult or controversial changes in.
+Andi Kleen,“æ交补ä¸ä¹‹è·¯â€
+ 一些帮助åˆå…¥å›°éš¾æˆ–有争议的å˜æ›´çš„策略。
http://halobates.de/on-submitting-patches.pdf
diff --git a/Documentation/translations/zh_CN/riscv/index.rst b/Documentation/translations/zh_CN/riscv/index.rst
index 614cde0c0997..131e405aa857 100644
--- a/Documentation/translations/zh_CN/riscv/index.rst
+++ b/Documentation/translations/zh_CN/riscv/index.rst
@@ -19,7 +19,6 @@ RISC-V 体系结构
boot-image-header
vm-layout
- pmu
patch-acceptance
diff --git a/Documentation/translations/zh_CN/riscv/pmu.rst b/Documentation/translations/zh_CN/riscv/pmu.rst
deleted file mode 100644
index 7ec801026c4d..000000000000
--- a/Documentation/translations/zh_CN/riscv/pmu.rst
+++ /dev/null
@@ -1,235 +0,0 @@
-.. include:: ../disclaimer-zh_CN.rst
-
-:Original: Documentation/riscv/pmu.rst
-
-:翻译:
-
- å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
-
-.. _cn_riscv_pmu:
-
-========================
-RISC-Vå¹³å°ä¸Šå¯¹PMUs的支æŒ
-========================
-
-Alan Kao <alankao@andestech.com>, Mar 2018
-
-简介
-------------
-
-截止本文撰写时,在The RISC-V ISA Privileged Version 1.10中æ到的 perf_event
-相关特性如下:
-(详情请查阅手册)
-
-* [m|s]counteren
-* mcycle[h], cycle[h]
-* minstret[h], instret[h]
-* mhpeventx, mhpcounterx[h]
-
-仅有以上这些功能,移æ¤perf需è¦åšå¾ˆå¤šå·¥ä½œï¼Œç©¶å…¶åŽŸå› æ˜¯ç¼ºå°‘以下通用架构的性能
-监测特性:
-
-* å¯ç”¨/åœç”¨è®¡æ•°å™¨
- 在我们这里,计数器一直在自由è¿è¡Œã€‚
-* 计数器溢出引起的中断
- 规范中没有这ç§åŠŸèƒ½ã€‚
-* 中断指示器
- ä¸å¯èƒ½æ‰€æœ‰çš„计数器都有很多的中断端å£ï¼Œæ‰€ä»¥éœ€è¦ä¸€ä¸ªä¸­æ–­æŒ‡ç¤ºå™¨è®©è½¯ä»¶æ¥åˆ¤æ–­
- 哪个计数器刚好溢出。
-* 写入计数器
- 由于内核ä¸èƒ½ä¿®æ”¹è®¡æ•°å™¨ï¼Œæ‰€ä»¥ä¼šæœ‰ä¸€ä¸ªSBIæ¥æ”¯æŒè¿™ä¸ªåŠŸèƒ½[1]。 å¦å¤–,一些厂商
- 考虑实现M-S-Uåž‹å·æœºå™¨çš„硬件扩展æ¥ç›´æŽ¥å†™å…¥è®¡æ•°å™¨ã€‚
-
-这篇文档旨在为开å‘者æ供一个在内核中支æŒPMU的简è¦æŒ‡å—。下é¢çš„章节简è¦è§£é‡Šäº†
-perf' 机制和待办事项。
-
-ä½ å¯ä»¥åœ¨è¿™é‡ŒæŸ¥çœ‹ä»¥å‰çš„讨论[1][2]。 å¦å¤–,查看附录中的相关内核结构体å¯èƒ½ä¼šæœ‰
-帮助。
-
-
-1. åˆå§‹åŒ–
----------
-
-*riscv_pmu* 是一个类型为 *struct riscv_pmu* 的全局指针,它包å«äº†æ ¹æ®perf内部
-约定的å„ç§æ–¹æ³•å’ŒPMU-specificå‚数。人们应该声明这样的实例æ¥ä»£è¡¨PMU。 默认情况
-下, *riscv_pmu* 指å‘一个常é‡ç»“构体 *riscv_base_pmu* ,它对基准QEMU模型有éžå¸¸
-基础的支æŒã€‚
-
-
-然åŽä»–/她å¯ä»¥å°†å®žä¾‹çš„指针分é…ç»™ *riscv_pmu* ,这样就å¯ä»¥åˆ©ç”¨å·²ç»å®žçŽ°çš„最å°é€»
-辑,或者创建他/她自己的 *riscv_init_platform_pmu* 实现。
-
-æ¢å¥è¯è¯´ï¼ŒçŽ°æœ‰çš„ *riscv_base_pmu* æºåªæ˜¯æ供了一个å‚考实现。 å¼€å‘者å¯ä»¥çµæ´»åœ°
-决定多少部分å¯ç”¨ï¼Œåœ¨æœ€æžç«¯çš„情况下,他们å¯ä»¥æ ¹æ®è‡ªå·±çš„需è¦å®šåˆ¶æ¯ä¸€ä¸ªå‡½æ•°ã€‚
-
-
-2. Event Initialization
------------------------
-
-当用户å¯åŠ¨perf命令æ¥ç›‘控一些事件时,首先会被用户空间的perf工具解释为多个
-*perf_event_open* 系统调用,然åŽè¿›ä¸€æ­¥è°ƒç”¨ä¸Šä¸€æ­¥åˆ†é…çš„ *event_init* æˆå‘˜å‡½æ•°
-的主体。 在 *riscv_base_pmu* 的情况下,就是 *riscv_event_init* 。
-
-该功能的主è¦ç›®çš„是将用户æ供的事件翻译æˆæ˜ å°„图,从而å¯ä»¥ç›´æŽ¥å¯¹HW-related的控
-制寄存器或计数器进行æ“作。该翻译基于 *riscv_pmu* 中æ供的映射和方法。
-
-注æ„,有些功能也å¯ä»¥åœ¨è¿™ä¸ªé˜¶æ®µå®Œæˆ:
-
-(1) 中断设置,这个在下一节说;
-(2) 特é™çº§è®¾ç½®(仅用户空间ã€ä»…内核空间ã€ä¸¤è€…都有)ï¼›
-(3) æžæž„函数设置。 通常应用 *riscv_destroy_event* å³å¯ï¼›
-(4) 对éžé‡‡æ ·äº‹ä»¶çš„调整,这将被函数应用,如 *perf_adjust_period* ,通常如下::
-
- if (!is_sampling_event(event)) {
- hwc->sample_period = x86_pmu.max_period;
- hwc->last_period = hwc->sample_period;
- local64_set(&hwc->period_left, hwc->sample_period);
- }
-
-
-在 *riscv_base_pmu* 的情况下,目å‰åªæ供了(3)。
-
-
-3. 中断
--------
-
-3.1. 中断åˆå§‹åŒ–
-
-è¿™ç§æƒ…况ç»å¸¸å‡ºçŽ°åœ¨ *event_init* 方案的开头。通常情况下,这应该是一个代ç æ®µï¼Œå¦‚::
-
- int x86_reserve_hardware(void)
- {
- int err = 0;
-
- if (!atomic_inc_not_zero(&pmc_refcount)) {
- mutex_lock(&pmc_reserve_mutex);
- if (atomic_read(&pmc_refcount) == 0) {
- if (!reserve_pmc_hardware())
- err = -EBUSY;
- else
- reserve_ds_buffers();
- }
- if (!err)
- atomic_inc(&pmc_refcount);
- mutex_unlock(&pmc_reserve_mutex);
- }
-
- return err;
- }
-
-而神奇的是 *reserve_pmc_hardware* ,它通常åšåŽŸå­æ“作,使实现的IRQå¯ä»¥ä»ŽæŸä¸ªå…¨å±€å‡½
-数指针访问。 而 *release_pmc_hardware* 的作用正好相å,它用在上一节æ到的事件分é…
-器中。
-
- (注:从所有架构的实现æ¥çœ‹ï¼Œ*reserve/release* 对总是IRQ设置,所以 *pmc_hardware*
- 似乎有些误导。 它并ä¸å¤„ç†äº‹ä»¶å’Œç‰©ç†è®¡æ•°å™¨ä¹‹é—´çš„绑定,这一点将在下一节介ç»ã€‚)
-
-3.2. IRQ结构体
-
-基本上,一个IRQè¿è¡Œä»¥ä¸‹ä¼ªä»£ç ::
-
- for each hardware counter that triggered this overflow
-
- get the event of this counter
-
- // following two steps are defined as *read()*,
- // check the section Reading/Writing Counters for details.
- count the delta value since previous interrupt
- update the event->count (# event occurs) by adding delta, and
- event->hw.period_left by subtracting delta
-
- if the event overflows
- sample data
- set the counter appropriately for the next overflow
-
- if the event overflows again
- too frequently, throttle this event
- fi
- fi
-
- end for
-
- 然而截至目å‰ï¼Œæ²¡æœ‰ä¸€ä¸ªRISC-V的实现为perf设计了中断,所以具体的实现è¦åœ¨æœªæ¥å®Œæˆã€‚
-
-4. Reading/Writing 计数
------------------------
-
-它们看似差ä¸å¤šï¼Œä½†perf对待它们的æ€åº¦å´æˆªç„¶ä¸åŒã€‚ 对于读,在 *struct pmu* 中有一个
-*read* 接å£ï¼Œä½†å®ƒçš„作用ä¸ä»…仅是读。 æ ¹æ®ä¸Šä¸‹æ–‡ï¼Œ*read* 函数ä¸ä»…è¦è¯»å–计数器的内容
-(event->count),还è¦æ›´æ–°å·¦å‘¨æœŸåˆ°ä¸‹ä¸€ä¸ªä¸­æ–­ï¼ˆevent->hw.period_left)。
-
- 但 perf 的核心ä¸éœ€è¦ç›´æŽ¥å†™è®¡æ•°å™¨ã€‚ 写计数器éšè—在以下两点的抽象化之åŽï¼Œ
- 1) *pmu->start* ,从字é¢ä¸Šçœ‹å°±æ˜¯å¼€å§‹è®¡æ•°ï¼Œæ‰€ä»¥å¿…须把计数器设置æˆä¸€ä¸ªåˆé€‚的值,以
- 便下一次中断;
- 2)在IRQ里é¢ï¼Œåº”该把计数器设置æˆåŒæ ·çš„åˆç†å€¼ã€‚
-
-在RISC-V中,读æ“作ä¸æ˜¯é—®é¢˜ï¼Œä½†å†™æ“作就需è¦è´¹äº›åŠ›æ°”了,因为S模å¼ä¸å…许写计数器。
-
-
-5. add()/del()/start()/stop()
------------------------------
-
-基本æ€æƒ³: add()/del() å‘PMU添加/删除事件,start()/stop() å¯åŠ¨/åœæ­¢PMU中æŸä¸ªäº‹ä»¶
-的计数器。 所有这些函数都使用相åŒçš„å‚æ•°: *struct perf_event *event* å’Œ *int flag* 。
-
-把 perf 看作一个状æ€æœºï¼Œé‚£ä¹ˆä½ ä¼šå‘现这些函数作为这些状æ€ä¹‹é—´çš„状æ€è½¬æ¢è¿‡ç¨‹ã€‚
-定义了三ç§çŠ¶æ€ï¼ˆevent->hw.state):
-
-* PERF_HES_STOPPED: 计数åœæ­¢
-* PERF_HES_UPTODATE: event->count是最新的
-* PERF_HES_ARCH: ä¾èµ–于体系结构的用法,。。。我们现在并ä¸éœ€è¦å®ƒã€‚
-
-这些状æ€è½¬æ¢çš„正常æµç¨‹å¦‚下:
-
-* 用户å¯åŠ¨ä¸€ä¸ª perf 事件,导致调用 *event_init* 。
-* 当被上下文切æ¢è¿›æ¥çš„时候,*add* 会被 perf core 调用,并带有一个标志 PERF_EF_START,
- 也就是说事件被添加åŽåº”该被å¯åŠ¨ã€‚ 在这个阶段,如果有的è¯ï¼Œä¸€èˆ¬äº‹ä»¶ä¼šè¢«ç»‘定到一个物
- ç†è®¡æ•°å™¨ä¸Šã€‚当状æ€å˜ä¸ºPERF_HES_STOPPEDå’ŒPERF_HES_UPTODATE,因为现在已ç»åœæ­¢äº†,
- (软件)事件计数ä¸éœ€è¦æ›´æ–°ã€‚
-
- - 然åŽè°ƒç”¨ *start* ,并å¯ç”¨è®¡æ•°å™¨ã€‚
- 通过PERF_EF_RELOAD标志,它å‘计数器写入一个适当的值(详细情况请å‚考上一节)。
- 如果标志ä¸åŒ…å«PERF_EF_RELOAD,则ä¸ä¼šå†™å…¥ä»»ä½•å†…容。
- 现在状æ€è¢«é‡ç½®ä¸ºnone,因为它既没有åœæ­¢ä¹Ÿæ²¡æœ‰æ›´æ–°ï¼ˆè®¡æ•°å·²ç»å¼€å§‹ï¼‰ã€‚
-
-*当被上下文切æ¢å‡ºæ¥æ—¶è¢«è°ƒç”¨ã€‚ 然åŽï¼Œå®ƒæ£€æŸ¥å‡ºPMU中的所有事件,并调用 *stop* æ¥æ›´æ–°å®ƒä»¬
- 的计数。
-
- - *stop* 被 *del* å’Œperf核心调用,标志为PERF_EF_UPDATE,它ç»å¸¸ä»¥ç›¸åŒçš„逻辑和 *read*
- 共用åŒä¸€ä¸ªå­ç¨‹åºã€‚
- 状æ€åˆä¸€æ¬¡å˜ä¸ºPERF_HES_STOPPEDå’ŒPERF_HES_UPTODATE。
-
- - 这两对程åºçš„生命周期: *add* å’Œ *del* 在任务切æ¢æ—¶è¢«åå¤è°ƒç”¨ï¼›*start* å’Œ *stop* 在
- perf核心需è¦å¿«é€Ÿåœæ­¢å’Œå¯åŠ¨æ—¶ä¹Ÿä¼šè¢«è°ƒç”¨ï¼Œæ¯”如在调整中断周期时。
-
-ç›®å‰çš„实现已ç»è¶³å¤Ÿäº†ï¼Œå°†æ¥å¯ä»¥å¾ˆå®¹æ˜“地扩展到功能。
-
-A. 相关结构体
--------------
-
-* struct pmu: include/linux/perf_event.h
-* struct riscv_pmu: arch/riscv/include/asm/perf_event.h
-
- 两个结构体都被设计为åªè¯»ã€‚
-
- *struct pmu* 定义了一些函数指针接å£ï¼Œå®ƒä»¬å¤§å¤šä»¥ *struct perf_event* 作为主å‚数,根æ®
- perf的内部状æ€æœºå¤„ç†perf事件(详情请查看kernel/events/core.c)。
-
- *struct riscv_pmu* 定义了PMU的具体å‚数。 命åéµå¾ªæ‰€æœ‰å…¶å®ƒæž¶æž„的惯例。
-
-* struct perf_event: include/linux/perf_event.h
-* struct hw_perf_event
-
- 表示 perf 事件的通用结构体,以åŠç¡¬ä»¶ç›¸å…³çš„细节。
-
-* struct riscv_hw_events: arch/riscv/include/asm/perf_event.h
-
- ä¿å­˜äº‹ä»¶çŠ¶æ€çš„结构有两个固定æˆå‘˜ã€‚
- 事件的数é‡å’Œäº‹ä»¶çš„数组。
-
-å‚考文献
---------
-
-[1] https://github.com/riscv/riscv-linux/pull/124
-
-[2] https://groups.google.com/a/groups.riscv.org/forum/#!topic/sw-dev/f19TmCNP6yA
diff --git a/Documentation/translations/zh_CN/riscv/vm-layout.rst b/Documentation/translations/zh_CN/riscv/vm-layout.rst
index 585cb89317a3..91884e2dfff8 100644
--- a/Documentation/translations/zh_CN/riscv/vm-layout.rst
+++ b/Documentation/translations/zh_CN/riscv/vm-layout.rst
@@ -6,6 +6,7 @@
:翻译:
å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
+ Binbin Zhou <zhoubinbin@loongson.cn>
============================
RISC-V Linux上的虚拟内存布局
@@ -65,3 +66,39 @@ RISC-V Linux Kernel SV39
ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF
ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel
__________________|____________|__________________|_________|____________________________________________________________
+
+
+RISC-V Linux Kernel SV48
+------------------------
+
+::
+
+ ========================================================================================================================
+ å¼€å§‹åœ°å€ | å移 | 结æŸåœ°å€ | å¤§å° | 虚拟内存区域æè¿°
+ ========================================================================================================================
+ | | | |
+ 0000000000000000 | 0 | 00007fffffffffff | 128 TB | 用户空间虚拟内存,æ¯ä¸ªå†…存管ç†å™¨ä¸åŒ
+ __________________|____________|__________________|_________|___________________________________________________________
+ | | | |
+ 0000800000000000 | +128 TB | ffff7fffffffffff | ~16M TB | ... 巨大的ã€å‡ ä¹Ž64ä½å®½çš„直到内核映射的-128TB地方
+ | | | | 开始å移的éžç»å…¸è™šæ‹Ÿå†…存地å€ç©ºæ´žã€‚
+ | | | |
+ __________________|____________|__________________|_________|___________________________________________________________
+ |
+ | 内核空间的虚拟内存,在所有进程之间共享:
+ ____________________________________________________________|___________________________________________________________
+ | | | |
+ ffff8d7ffee00000 | -114.5 TB | ffff8d7ffeffffff | 2 MB | fixmap
+ ffff8d7fff000000 | -114.5 TB | ffff8d7fffffffff | 16 MB | PCI io
+ ffff8d8000000000 | -114.5 TB | ffff8f7fffffffff | 2 TB | vmemmap
+ ffff8f8000000000 | -112.5 TB | ffffaf7fffffffff | 32 TB | vmalloc/ioremap space
+ ffffaf8000000000 | -80.5 TB | ffffef7fffffffff | 64 TB | 直接映射所有物ç†å†…å­˜
+ ffffef8000000000 | -16.5 TB | fffffffeffffffff | 16.5 TB | kasan
+ __________________|____________|__________________|_________|____________________________________________________________
+ |
+ | 从此处开始,与39-bit布局相åŒï¼š
+ ____________________________________________________________|____________________________________________________________
+ | | | |
+ ffffffff00000000 | -4 GB | ffffffff7fffffff | 2 GB | modules, BPF
+ ffffffff80000000 | -2 GB | ffffffffffffffff | 2 GB | kernel
+ __________________|____________|__________________|_________|____________________________________________________________
diff --git a/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst b/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst
index 26b0f36f793d..3076402406c4 100644
--- a/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst
+++ b/Documentation/translations/zh_CN/scheduler/sched-design-CFS.rst
@@ -80,7 +80,7 @@ p->se.vruntime。一旦p->se.vruntimeå˜å¾—足够大,其它的任务将æˆä¸ºæ
CFS使用纳秒粒度的计时,ä¸ä¾èµ–于任何jiffies或HZ的细节。因此CFS并ä¸åƒä¹‹å‰çš„调度器那样
有“时间片â€çš„概念,也没有任何å¯å‘å¼çš„设计。唯一å¯è°ƒçš„å‚数(你需è¦æ‰“å¼€CONFIG_SCHED_DEBUG)是:
- /proc/sys/kernel/sched_min_granularity_ns
+ /sys/kernel/debug/sched/min_granularity_ns
它å¯ä»¥ç”¨æ¥å°†è°ƒåº¦å™¨ä»Žâ€œæ¡Œé¢â€æ¨¡å¼ï¼ˆä¹Ÿå°±æ˜¯ä½Žæ—¶å»¶ï¼‰è°ƒèŠ‚为“æœåŠ¡å™¨â€ï¼ˆä¹Ÿå°±æ˜¯é«˜æ‰¹å¤„ç†ï¼‰æ¨¡å¼ã€‚
它的默认设置是适åˆæ¡Œé¢çš„工作负载。SCHED_BATCH也被CFS调度器模å—处ç†ã€‚
diff --git a/Documentation/translations/zh_CN/scheduler/sched-stats.rst b/Documentation/translations/zh_CN/scheduler/sched-stats.rst
index 1c68c3d1c283..c5e0be663837 100644
--- a/Documentation/translations/zh_CN/scheduler/sched-stats.rst
+++ b/Documentation/translations/zh_CN/scheduler/sched-stats.rst
@@ -57,8 +57,8 @@ cpu<N> 1 2 3 4 5 6 7 8 9
接下æ¥çš„三个统计数æ®æ述了调度延迟:
- 7) 本处ç†å™¨è¿è¡Œä»»åŠ¡çš„总时间,å•ä½æ˜¯jiffies
- 8) 本处ç†å™¨ä»»åŠ¡ç­‰å¾…è¿è¡Œçš„时间,å•ä½æ˜¯jiffies
+ 7) 本处ç†å™¨è¿è¡Œä»»åŠ¡çš„总时间,å•ä½æ˜¯çº³ç§’
+ 8) 本处ç†å™¨ä»»åŠ¡ç­‰å¾…è¿è¡Œçš„时间,å•ä½æ˜¯çº³ç§’
9) 本CPUè¿è¡Œäº†#个时间片
域统计数æ®
@@ -146,8 +146,8 @@ domain<N> <cpumask> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
schedstats还添加了一个新的/proc/<pid>/schedstat文件,æ¥æ供一些进程级的
相åŒä¿¡æ¯ã€‚这个文件中,有三个字段与该进程相关:
- 1) 在CPU上è¿è¡ŒèŠ±è´¹çš„时间
- 2) 在è¿è¡Œé˜Ÿåˆ—上等待的时间
+ 1) 在CPU上è¿è¡ŒèŠ±è´¹çš„时间(å•ä½æ˜¯çº³ç§’)
+ 2) 在è¿è¡Œé˜Ÿåˆ—上等待的时间(å•ä½æ˜¯çº³ç§’)
3) 在CPU上è¿è¡Œäº†#个时间片
å¯ä»¥å¾ˆå®¹æ˜“地编写一个程åºï¼Œåˆ©ç”¨è¿™äº›é¢å¤–的字段æ¥æŠ¥å‘Šä¸€ä¸ªç‰¹å®šçš„进程或一组进程在
diff --git a/Documentation/translations/zh_CN/vm/highmem.rst b/Documentation/translations/zh_CN/vm/highmem.rst
deleted file mode 100644
index 018838e58c3e..000000000000
--- a/Documentation/translations/zh_CN/vm/highmem.rst
+++ /dev/null
@@ -1,128 +0,0 @@
-.. include:: ../disclaimer-zh_CN.rst
-
-:Original: Documentation/vm/highmem.rst
-
-:翻译:
-
- å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
-
-:校译:
-
-==========
-高内存处ç†
-==========
-
-作者: Peter Zijlstra <a.p.zijlstra@chello.nl>
-
-.. contents:: :local:
-
-高内存是什么?
-==============
-
-当物ç†å†…存的大å°æŽ¥è¿‘或超过虚拟内存的最大大å°æ—¶ï¼Œå°±ä¼šä½¿ç”¨é«˜å†…存(highmem)。在这一点上,内
-æ ¸ä¸å¯èƒ½åœ¨ä»»ä½•æ—¶å€™éƒ½ä¿æŒæ‰€æœ‰å¯ç”¨çš„物ç†å†…存的映射。这æ„味ç€å†…核需è¦å¼€å§‹ä½¿ç”¨å®ƒæƒ³è®¿é—®çš„物ç†å†…
-存的临时映射。
-
-没有被永久映射覆盖的那部分(物ç†ï¼‰å†…存就是我们所说的 "高内存"。对于这个边界的确切ä½ç½®ï¼Œæœ‰
-å„ç§æž¶æž„上的é™åˆ¶ã€‚
-
-例如,在i386架构中,我们选择将内核映射到æ¯ä¸ªè¿›ç¨‹çš„虚拟空间,这样我们就ä¸å¿…为内核的进入/退
-出付出全部的TLB作废代价。这æ„味ç€å¯ç”¨çš„虚拟内存空间(i386上为4GiB)必须在用户和内核空间之
-间进行划分。
-
-使用这ç§æ–¹æ³•çš„架构的传统分é…æ–¹å¼æ˜¯3:1,3GiB用于用户空间,顶部的1GiB用于内核空间。::
-
- +--------+ 0xffffffff
- | Kernel |
- +--------+ 0xc0000000
- | |
- | User |
- | |
- +--------+ 0x00000000
-
-è¿™æ„味ç€å†…核在任何时候最多å¯ä»¥æ˜ å°„1GiB的物ç†å†…存,但是由于我们需è¦è™šæ‹Ÿåœ°å€ç©ºé—´æ¥åšå…¶ä»–事
-情--包括访问其余物ç†å†…存的临时映射--实际的直接映射通常会更少(通常在~896MiBå·¦å³ï¼‰ã€‚
-
-其他有mm上下文标签的TLB的架构å¯ä»¥æœ‰ç‹¬ç«‹çš„内核和用户映射。然而,一些硬件(如一些ARM)在使
-用mm上下文标签时,其虚拟空间有é™ã€‚
-
-
-临时虚拟映射
-============
-
-内核包å«å‡ ç§åˆ›å»ºä¸´æ—¶æ˜ å°„的方法。:
-
-* vmap(). è¿™å¯ä»¥ç”¨æ¥å°†å¤šä¸ªç‰©ç†é¡µé•¿æœŸæ˜ å°„到一个连续的虚拟空间。它需è¦synchronization
- æ¥è§£é™¤æ˜ å°„。
-
-* kmap(). è¿™å…许对å•ä¸ªé¡µé¢è¿›è¡ŒçŸ­æœŸæ˜ å°„。它需è¦synchronization,但在一定程度上被摊销。
- 当以嵌套方å¼ä½¿ç”¨æ—¶ï¼Œå®ƒä¹Ÿå¾ˆå®¹æ˜“出现死é”,因此ä¸å»ºè®®åœ¨æ–°ä»£ç ä¸­ä½¿ç”¨å®ƒã€‚
-
-* kmap_atomic(). è¿™å…许对å•ä¸ªé¡µé¢è¿›è¡Œéžå¸¸çŸ­çš„时间映射。由于映射被é™åˆ¶åœ¨å‘布它的CPU上,
- 它表现得很好,但å‘布任务因此被è¦æ±‚留在该CPU上直到它完æˆï¼Œä»¥å…其他任务å–代它的映射。
-
- kmap_atomic() 也å¯ä»¥ç”±ä¸­æ–­ä¸Šä¸‹æ–‡ä½¿ç”¨ï¼Œå› ä¸ºå®ƒä¸ç¡çœ ï¼Œè€Œä¸”调用者å¯èƒ½åœ¨è°ƒç”¨kunmap_atomic()
- 之åŽæ‰ç¡çœ ã€‚
-
- å¯ä»¥å‡è®¾k[un]map_atomic()ä¸ä¼šå¤±è´¥ã€‚
-
-
-使用kmap_atomic
-===============
-
-何时何地使用 kmap_atomic() 是很直接的。当代ç æƒ³è¦è®¿é—®ä¸€ä¸ªå¯èƒ½ä»Žé«˜å†…存(è§__GFP_HIGHMEM)
-分é…的页é¢çš„内容时,例如在页缓存中的页é¢ï¼Œå°±ä¼šä½¿ç”¨å®ƒã€‚该API有两个函数,它们的使用方å¼ä¸Ž
-下é¢ç±»ä¼¼::
-
- /* 找到感兴趣的页é¢ã€‚ */
- struct page *page = find_get_page(mapping, offset);
-
- /* 获得对该页内容的访问æƒã€‚ */
- void *vaddr = kmap_atomic(page);
-
- /* 对该页的内容åšä¸€äº›å¤„ç†ã€‚ */
- memset(vaddr, 0, PAGE_SIZE);
-
- /* 解除该页é¢çš„映射。 */
- kunmap_atomic(vaddr);
-
-注æ„,kunmap_atomic()调用的是kmap_atomic()调用的结果而ä¸æ˜¯å‚数。
-
-如果你需è¦æ˜ å°„两个页é¢ï¼Œå› ä¸ºä½ æƒ³ä»Žä¸€ä¸ªé¡µé¢å¤åˆ¶åˆ°å¦ä¸€ä¸ªé¡µé¢ï¼Œä½ éœ€è¦ä¿æŒkmap_atomic调用严
-格嵌套,如::
-
- vaddr1 = kmap_atomic(page1);
- vaddr2 = kmap_atomic(page2);
-
- memcpy(vaddr1, vaddr2, PAGE_SIZE);
-
- kunmap_atomic(vaddr2);
- kunmap_atomic(vaddr1);
-
-
-临时映射的æˆæœ¬
-==============
-
-创建临时映射的代价å¯èƒ½ç›¸å½“高。体系架构必须æ“作内核的页表ã€æ•°æ®TLBå’Œ/或MMU的寄存器。
-
-如果CONFIG_HIGHMEM没有被设置,那么内核会å°è¯•ç”¨ä¸€ç‚¹è®¡ç®—æ¥åˆ›å»ºæ˜ å°„,将页é¢ç»“构地å€è½¬æ¢æˆ
-指å‘页é¢å†…容的指针,而ä¸æ˜¯åŽ»æ£é¼“映射。在这ç§æƒ…况下,解映射æ“作å¯èƒ½æ˜¯ä¸€ä¸ªç©ºæ“作。
-
-如果CONFIG_MMU没有被设置,那么就ä¸å¯èƒ½æœ‰ä¸´æ—¶æ˜ å°„和高内存。在这ç§æƒ…况下,也将使用计算方法。
-
-
-i386 PAE
-========
-
-在æŸäº›æƒ…况下,i386 架构将å…许你在 32 ä½æœºå™¨ä¸Šå®‰è£…多达 64GiB 的内存。但这有一些åŽæžœ:
-
-* Linux需è¦ä¸ºç³»ç»Ÿä¸­çš„æ¯ä¸ªé¡µé¢å»ºç«‹ä¸€ä¸ªé¡µå¸§ç»“构,而且页帧需è¦é©»åœ¨æ°¸ä¹…映射中,这æ„味ç€ï¼š
-
-* 你最多å¯ä»¥æœ‰896M/sizeof(struct page)页帧;由于页结构体是32字节的,所以最终会有
- 112G的页;然而,内核需è¦åœ¨å†…存中存储更多的页帧......
-
-* PAE使你的页表å˜å¤§--这使系统å˜æ…¢ï¼Œå› ä¸ºæ›´å¤šçš„æ•°æ®éœ€è¦åœ¨TLB填充等方é¢è¢«è®¿é—®ã€‚一个好处
- 是,PAE有更多的PTEä½ï¼Œå¯ä»¥æä¾›åƒNXå’ŒPAT这样的高级功能。
-
-一般的建议是,你ä¸è¦åœ¨32ä½æœºå™¨ä¸Šä½¿ç”¨è¶…过8GiB的空间--尽管更多的空间å¯èƒ½å¯¹ä½ å’Œä½ çš„工作
-é‡æœ‰ç”¨ï¼Œä½†ä½ å‡ ä¹Žæ˜¯é ä½ è‡ªå·±--ä¸è¦æŒ‡æœ›å†…核开å‘者真的会很关心事情的进展情况。
diff --git a/Documentation/translations/zh_CN/vm/index.rst b/Documentation/translations/zh_CN/vm/index.rst
deleted file mode 100644
index a1c6d529b6ff..000000000000
--- a/Documentation/translations/zh_CN/vm/index.rst
+++ /dev/null
@@ -1,54 +0,0 @@
-.. include:: ../disclaimer-zh_CN.rst
-
-:Original: Documentation/vm/index.rst
-
-:翻译:
-
- å¸å»¶è…¾ Yanteng Si <siyanteng@loongson.cn>
-
-:校译:
-
-=================
-Linux内存管ç†æ–‡æ¡£
-=================
-
-这是一个关于Linux内存管ç†ï¼ˆmm)å­ç³»ç»Ÿå†…部的文档集,其中有ä¸åŒå±‚次的细节,包括注释
-和邮件列表的回å¤ï¼Œç”¨äºŽé˜è¿°æ•°æ®ç»“构和算法的基本情况。如果你正在寻找关于简å•åˆ†é…内存的建
-议,请å‚阅(Documentation/translations/zh_CN/core-api/memory-allocation.rst)。
-对于控制和调整指å—,请å‚阅(Documentation/admin-guide/mm/index)。
-TODO:待引用文档集被翻译完毕åŽè¯·åŠæ—¶ä¿®æ”¹æ­¤å¤„)
-
-.. toctree::
- :maxdepth: 1
-
- active_mm
- balance
- damon/index
- free_page_reporting
- highmem
- ksm
- frontswap
- hmm
- hwpoison
- hugetlbfs_reserv
- memory-model
- mmu_notifier
- numa
- overcommit-accounting
- page_frags
- page_owner
- page_table_check
- remap_file_pages
- split_page_table_lock
- z3fold
- zsmalloc
-
-TODOLIST:
-* arch_pgtable_helpers
-* free_page_reporting
-* hugetlbfs_reserv
-* page_migration
-* slub
-* transhuge
-* unevictable-lru
-* vmalloced-kernel-stacks
diff --git a/Documentation/translations/zh_TW/index.rst b/Documentation/translations/zh_TW/index.rst
index e1ce9d8c06f8..e97d7d578751 100644
--- a/Documentation/translations/zh_TW/index.rst
+++ b/Documentation/translations/zh_TW/index.rst
@@ -128,7 +128,7 @@ TODOList:
* security/index
* sound/index
* crypto/index
-* vm/index
+* mm/index
* bpf/index
* usb/index
* PCI/index
diff --git a/Documentation/translations/zh_TW/oops-tracing.txt b/Documentation/translations/zh_TW/oops-tracing.txt
deleted file mode 100644
index be8e59f2abaf..000000000000
--- a/Documentation/translations/zh_TW/oops-tracing.txt
+++ /dev/null
@@ -1,212 +0,0 @@
-Chinese translated version of Documentation/admin-guide/bug-hunting.rst
-
-If you have any comment or update to the content, please contact the
-original document maintainer directly. However, if you have a problem
-communicating in English you can also ask the Chinese maintainer for
-help. Contact the Chinese maintainer if this translation is outdated
-or if there is a problem with the translation.
-
-Traditional Chinese maintainer: Hu Haowen <src.res@email.cn>
----------------------------------------------------------------------
-Documentation/admin-guide/bug-hunting.rst çš„ç¹é«”中文版翻譯
-
-如果想評論或更新本文的內容,請直接è¯ç¹«åŽŸæ–‡æª”的維護者。如果你使用英文
-交æµæœ‰å›°é›£çš„話,也å¯ä»¥å‘ç¹é«”中文版維護者求助。如果本翻譯更新ä¸åŠæ™‚或
-者翻譯存在å•é¡Œï¼Œè«‹è¯ç¹«ç¹é«”中文版維護者。
-
-ç¹é«”中文版維護者: 胡皓文 Hu Haowen <src.res@email.cn>
-ç¹é«”中文版翻譯者: 胡皓文 Hu Haowen <src.res@email.cn>
-ç¹é«”中文版校譯者: 胡皓文 Hu Haowen <src.res@email.cn>
-
-以下爲正文
----------------------------------------------------------------------
-
-注æ„: ksymoops 在2.6中是沒有用的。 請以原有格å¼ä½¿ç”¨Oops(來自dmesg,等等)。
-忽略任何這樣那樣關於「解碼Oopsã€æˆ–者「通éŽksymoopsé‹è¡Œã€çš„文檔。 如果你貼出é‹è¡ŒéŽ
-ksymoops的來自2.6çš„Oops,人們åªæœƒè®“ä½ é‡è²¼ä¸€æ¬¡ã€‚
-
-快速總çµ
--------------
-
-發ç¾Oops並發é€çµ¦çœ‹ä¼¼ç›¸é—œçš„內核領域的維護者。別太擔心å°ä¸ä¸Šè™Ÿã€‚如果你ä¸ç¢ºå®šå°±ç™¼çµ¦
-和你所åšçš„事情相關的代碼的負責人。 如果å¯é‡ç¾è©¦è‘—æ述怎樣é‡æ§‹ã€‚ 那甚至比oops更有
-價值。
-
-如果你å°æ–¼ç™¼é€çµ¦èª°ä¸€ç„¡æ‰€çŸ¥ï¼Œ 發給linux-kernel@vger.kernel.org。感è¬ä½ å¹«åŠ©Linux
-儘å¯èƒ½åœ°ç©©å®šã€‚
-
-Oops在哪裡?
-----------------------
-
-通常Oops文本由klogd從內核緩è¡å€é‡Œè®€å–並傳給syslogd,由syslogd寫到syslog文件中,
-典型地是/var/log/messages(ä¾è³´æ–¼/etc/syslog.conf)。有時klogd崩潰了,這種情æ³ä¸‹ä½ 
-能夠é‹è¡Œdmesg > file來從內核緩è¡å€ä¸­è®€å–數據並ä¿å­˜ä¸‹ä¾†ã€‚ å¦å‰‡ä½ å¯ä»¥
-cat /proc/kmsg > file, 然而你必須介入中止傳輸, kmsg是一個「永ä¸çµæŸçš„文件ã€ã€‚如
-果機器崩潰壞到你ä¸èƒ½è¼¸å…¥å‘½ä»¤æˆ–者ç£ç¢Ÿä¸å¯ç”¨é‚£éº¼ä½ æœ‰ä¸‰ç¨®é¸æ“‡:-
-
-(1) 手抄å±å¹•ä¸Šçš„文本待機器é‡å•“後å†è¼¸å…¥è¨ˆç®—機。 麻煩但如果沒有é‡å°å´©æ½°çš„準備,
-這是僅有的é¸æ“‡ã€‚ å¦å¤–,你å¯ä»¥ç”¨æ•¸ä½ç›¸æ©ŸæŠŠå±å¹•æ‹ä¸‹ä¾†-ä¸å¤ªå¥½ï¼Œä½†æ¯”沒有強。 如果信
-æ¯æ»¾å‹•åˆ°äº†çµ‚端的上é¢ï¼Œä½ æœƒç™¼ç¾ä»¥é«˜åˆ†è¾¯çŽ‡å•“動(比如,vga=791)會讓你讀到更多的文
-本。(注æ„:這需è¦vesafb,所以å°ã€Žæ—©æœŸã€çš„oops沒有幫助)
-
-(2)用串å£çµ‚端啓動(請åƒçœ‹Documentation/admin-guide/serial-console.rst),é‹è¡Œä¸€å€‹null
-modem到å¦ä¸€å°æ©Ÿå™¨ä¸¦ç”¨ä½ å–œæ­¡çš„通訊工具ç²å–輸出。Minicom工作地很好。
-
-(3)使用Kdump(請åƒçœ‹Documentation/admin-guide/kdump/kdump.rst),
-使用在Documentation/admin-guide/kdump/gdbmacros.txt中定義的dmesg gdbå®ï¼Œå¾žèˆŠçš„內存中æå–內核
-環形緩è¡å€ã€‚
-
-完整信æ¯
-----------------
-
-注æ„:以下來自於Linus的郵件é©ç”¨æ–¼2.4內核。 我因爲歷å²åŽŸå› ä¿ç•™äº†å®ƒï¼Œä¸¦ä¸”因爲其中
-一些信æ¯ä»ç„¶é©ç”¨ã€‚ 特別注æ„的是,請忽略任何ksymoops的引用。
-
-From: Linus Torvalds <torvalds@osdl.org>
-
-怎樣跟蹤Oops.. [原發到linux-kernel的一å°éƒµä»¶]
-
-主è¦çš„竅門是有五年和這些煩人的oops消æ¯æ‰“交é“的經驗;-)
-
-實際上,你有辦法使它更簡單。我有兩個ä¸åŒçš„方法:
-
- gdb /usr/src/linux/vmlinux
- gdb> disassemble <offending_function>
-
-那是發ç¾å•é¡Œçš„簡單辦法,至少如果bug報告åšçš„好的情æ³ä¸‹ï¼ˆè±¡é€™å€‹ä¸€æ¨£-é‹è¡Œksymoops
-得到oops發生的函數åŠå‡½æ•¸å…§çš„å移)。
-
-哦,如果報告發生的內核以相åŒçš„編譯器和相似的é…置編譯它會有幫助的。
-
-å¦ä¸€ä»¶è¦åšçš„事是å彙編bug報告的「Codeã€éƒ¨åˆ†ï¼šksymoops也會用正確的工具來åšé€™ä»¶äº‹ï¼Œ
-但如果沒有那些工具你å¯ä»¥å¯«ä¸€å€‹å‚»ç¨‹åºï¼š
-
- char str[] = "\xXX\xXX\xXX...";
- main(){}
-
-並用gcc -g編譯它然後執行「disassemble strã€ï¼ˆXX部分是由Oops報告的值-ä½ å¯ä»¥åƒ…剪切
-粘貼並用「\xã€æ›¿æ›ç©ºæ ¼-我就是這麼åšçš„,因爲我懶得寫程åºè‡ªå‹•åšé€™ä¸€åˆ‡ï¼‰ã€‚
-
-å¦å¤–,你å¯ä»¥ç”¨scripts/decodecode這個shell腳本。它的使用方法是:
-decodecode < oops.txt
-
-「Codeã€ä¹‹å¾Œçš„å六進ä½å­—節å¯èƒ½ï¼ˆåœ¨æŸäº›æž¶æ§‹ä¸Šï¼‰æœ‰ä¸€äº›ç•¶å‰æŒ‡ä»¤ä¹‹å‰çš„指令字節以åŠ
-當å‰å’Œä¹‹å¾Œçš„指令字節
-
-Code: f9 0f 8d f9 00 00 00 8d 42 0c e8 dd 26 11 c7 a1 60 ea 2b f9 8b 50 08 a1
-64 ea 2b f9 8d 34 82 8b 1e 85 db 74 6d 8b 15 60 ea 2b f9 <8b> 43 04 39 42 54
-7e 04 40 89 42 54 8b 43 04 3b 05 00 f6 52 c0
-
-最後,如果你想知é“代碼來自哪裡,你å¯ä»¥ï¼š
-
- cd /usr/src/linux
- make fs/buffer.s # 或任何產生BUG的文件
-
-然後你會比gdbå彙編更清楚的知é“發生了什麼。
-
-ç¾åœ¨ï¼Œå•é¡Œæ˜¯æŠŠä½ æ‰€æ“有的所有數據çµåˆèµ·ä¾†ï¼šCæºç¢¼ï¼ˆé—œæ–¼å®ƒæ‡‰è©²æ€Žæ¨£çš„一般知識),
-彙編代碼åŠå…¶å彙編得到的代碼(å¦å¤–還有從「oopsã€æ¶ˆæ¯å¾—到的寄存器狀態-å°äº†è§£æ¯€å£žçš„
-指é‡æœ‰ç”¨ï¼Œè€Œä¸”當你有了彙編代碼你也能拿其它的寄存器和任何它們å°æ‡‰çš„C表é”å¼åšåŒ¹é…
-)。
-
-實際上,你僅需看看哪裡ä¸åŒ¹é…(這個例å­æ˜¯ã€ŒCodeã€å彙編和編譯器生æˆçš„代碼ä¸åŒ¹é…)。
-然後你須è¦æ‰¾å‡ºçˆ²ä»€éº¼ä¸åŒ¹é…。通常很簡單-你看到代碼使用了空指é‡ç„¶å¾Œä½ çœ‹ä»£ç¢¼æƒ³çŸ¥é“
-空指é‡æ˜¯æ€Žéº¼å‡ºç¾çš„,還有檢查它是å¦åˆæ³•..
-
-ç¾åœ¨ï¼Œå¦‚果明白這是一項耗時的工作而且需è¦ä¸€ä¸é»žå…’的專心,沒錯。這就是我爲什麼大多
-åªæ˜¯å¿½ç•¥é‚£äº›æ²’有符號表信æ¯çš„崩潰報告的原因:簡單的說太難查找了(我有一些
-程åºç”¨æ–¼åœ¨å…§æ ¸ä»£ç¢¼æ®µä¸­æœç´¢ç‰¹å®šçš„模å¼ï¼Œè€Œä¸”有時我也已經能找出那些崩潰的地方,但是
-僅僅是找出正確的åºåˆ—也確實需è¦ç›¸ç•¶ç´®å¯¦çš„內核知識)
-
-_有時_會發生這種情æ³ï¼Œæˆ‘僅看到崩潰中的å彙編代碼åºåˆ—, 然後我馬上就明白å•é¡Œå‡ºåœ¨
-哪裡。這時我æ‰æ„識到自己幹這個工作已經太長時間了;-)
-
- Linus
-
-
----------------------------------------------------------------------------
-關於Oops跟蹤的註解:
-
-爲了幫助Linus和其它內核開發者,klogdç´å…¥äº†å¤§é‡çš„支æŒä¾†è™•ç†ä¿è­·éŒ¯èª¤ã€‚爲了æ“有å°
-地å€è§£æžçš„完整支æŒè‡³å°‘應該使用1.3-pl3çš„sysklogd包。
-
-當ä¿è­·éŒ¯èª¤ç™¼ç”Ÿæ™‚,klogd守護進程自動把內核日誌信æ¯ä¸­çš„é‡è¦åœ°å€ç¿»è­¯æˆå®ƒå€‘相應的符
-號。
-
-klogd執行兩種類型的地å€è§£æžã€‚首先是éœæ…‹ç¿»è­¯å…¶æ¬¡æ˜¯å‹•æ…‹ç¿»è­¯ã€‚éœæ…‹ç¿»è­¯å’Œksymoops
-一樣使用System.map文件。爲了åšéœæ…‹ç¿»è­¯klogd守護進程必須在åˆå§‹åŒ–時能找到system
-map文件。關於klogd怎樣æœç´¢map文件請åƒçœ‹klogd手冊é ã€‚
-
-動態地å€ç¿»è­¯åœ¨ä½¿ç”¨å…§æ ¸å¯è£è¼‰æ¨¡å¡Šæ™‚很é‡è¦ã€‚ 因爲內核模塊的內存是從內核動態內存池
-里分é…的,所以ä¸ç®¡æ˜¯æ¨¡å¡Šé–‹å§‹ä½ç½®é‚„是模塊中函數和符號的ä½ç½®éƒ½ä¸æ˜¯å›ºå®šçš„。
-
-內核支æŒå…許程åºæ±ºå®šè£è¼‰å“ªäº›æ¨¡å¡Šå’Œå®ƒå€‘在內存中ä½ç½®çš„系統調用。使用這些系統調用
-klogd守護進程生æˆä¸€å¼µç¬¦è™Ÿè¡¨ç”¨æ–¼èª¿è©¦ç™¼ç”Ÿåœ¨å¯è£è¼‰æ¨¡å¡Šä¸­çš„ä¿è­·éŒ¯èª¤ã€‚
-
-至少klogd會æ供產生ä¿è­·éŒ¯èª¤çš„模塊å。還å¯æœ‰é¡å¤–的符號信æ¯ä¾›å¯è£è¼‰æ¨¡å¡Šé–‹ç™¼è€…é¸æ“‡
-以從模塊中輸出符號信æ¯ã€‚
-
-因爲內核模塊環境å¯èƒ½æ˜¯å‹•æ…‹çš„,所以必須有一種機制當模塊環境發生改變時來通知klogd
-守護進程。 有一些å¯ç”¨çš„命令行é¸é …å…許klogdå‘當å‰åŸ·è¡Œä¸­çš„守護進程發é€ä¿¡è™Ÿï¼Œå‘ŠçŸ¥ç¬¦
-號信æ¯æ‡‰è©²è¢«åˆ·æ–°äº†ã€‚ 更多信æ¯è«‹åƒçœ‹klogd手冊é ã€‚
-
-sysklogd發布時包å«ä¸€å€‹è£œä¸ä¿®æ”¹äº†modules-2.0.0包,無論何時一個模塊è£è¼‰æˆ–者å¸è¼‰éƒ½
-會自動å‘klogd發é€ä¿¡è™Ÿã€‚打上這個補ä¸æ供了必è¦çš„å°èª¿è©¦ç™¼ç”Ÿæ–¼å…§æ ¸å¯è£è¼‰æ¨¡å¡Šçš„ä¿è­·
-錯誤的無縫支æŒã€‚
-
-以下是被klogd處ç†éŽçš„發生在å¯è£è¼‰æ¨¡å¡Šä¸­çš„一個ä¿è­·éŒ¯èª¤ä¾‹å­ï¼š
----------------------------------------------------------------------------
-Aug 29 09:51:01 blizard kernel: Unable to handle kernel paging request at virtual address f15e97cc
-Aug 29 09:51:01 blizard kernel: current->tss.cr3 = 0062d000, %cr3 = 0062d000
-Aug 29 09:51:01 blizard kernel: *pde = 00000000
-Aug 29 09:51:01 blizard kernel: Oops: 0002
-Aug 29 09:51:01 blizard kernel: CPU: 0
-Aug 29 09:51:01 blizard kernel: EIP: 0010:[oops:_oops+16/3868]
-Aug 29 09:51:01 blizard kernel: EFLAGS: 00010212
-Aug 29 09:51:01 blizard kernel: eax: 315e97cc ebx: 003a6f80 ecx: 001be77b edx: 00237c0c
-Aug 29 09:51:01 blizard kernel: esi: 00000000 edi: bffffdb3 ebp: 00589f90 esp: 00589f8c
-Aug 29 09:51:01 blizard kernel: ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
-Aug 29 09:51:01 blizard kernel: Process oops_test (pid: 3374, process nr: 21, stackpage=00589000)
-Aug 29 09:51:01 blizard kernel: Stack: 315e97cc 00589f98 0100b0b4 bffffed4 0012e38e 00240c64 003a6f80 00000001
-Aug 29 09:51:01 blizard kernel: 00000000 00237810 bfffff00 0010a7fa 00000003 00000001 00000000 bfffff00
-Aug 29 09:51:01 blizard kernel: bffffdb3 bffffed4 ffffffda 0000002b 0007002b 0000002b 0000002b 00000036
-Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system_call+82/128]
-Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3
----------------------------------------------------------------------------
-
-Dr. G.W. Wettstein Oncology Research Div. Computing Facility
-Roger Maris Cancer Center INTERNET: greg@wind.rmcc.com
-820 4th St. N.
-Fargo, ND 58122
-Phone: 701-234-7556
-
-
----------------------------------------------------------------------------
-å—汙染的內核
-
-一些oops報告在程åºè¨˜æ•¸å™¨ä¹‹å¾ŒåŒ…å«å­—符串'Tainted: '。這表明內核已經被一些æ±è¥¿çµ¦æ±™
-染了。 該字符串之後緊跟著一系列的ä½ç½®æ•æ„Ÿçš„字符,æ¯å€‹ä»£è¡¨ä¸€å€‹ç‰¹å®šçš„汙染值。
-
- 1:'G'如果所有è£è¼‰çš„模塊都有GPL或相容的許å¯è­‰ï¼Œ'P'如果è£è¼‰äº†ä»»ä½•çš„專有模塊。
-沒有模塊MODULE_LICENSE或者帶有insmodèªçˆ²æ˜¯èˆ‡GPLä¸ç›¸å®¹çš„çš„MODULE_LICENSE的模塊被
-èªå®šæ˜¯å°ˆæœ‰çš„。
-
- 2:'F'如果有任何通éŽã€Œinsmod -fã€è¢«å¼·åˆ¶è£è¼‰çš„模塊,' '如果所有模塊都被正常è£è¼‰ã€‚
-
- 3:'S'如果oops發生在SMP內核中,é‹è¡Œæ–¼æ²’有證明安全é‹è¡Œå¤šè™•ç†å™¨çš„硬體。 當å‰é€™ç¨®
-情æ³åƒ…é™æ–¼å¹¾ç¨®ä¸æ”¯æŒSMP的速é¾è™•ç†å™¨ã€‚
-
- 4:'R'如果模塊通éŽã€Œinsmod -fã€è¢«å¼·åˆ¶è£è¼‰ï¼Œ' '如果所有模塊都被正常è£è¼‰ã€‚
-
- 5:'M'如果任何處ç†å™¨å ±å‘Šäº†æ©Ÿå™¨æª¢æŸ¥ç•°å¸¸ï¼Œ' '如果沒有發生機器檢查異常。
-
- 6:'B'如果é é‡‹æ”¾å‡½æ•¸ç™¼ç¾äº†ä¸€å€‹éŒ¯èª¤çš„é å¼•ç”¨æˆ–者一些éžé æœŸçš„é æ¨™èªŒã€‚
-
- 7:'U'如果用戶或者用戶應用程å¼ç‰¹åˆ¥è«‹æ±‚設置汙染標誌,å¦å‰‡' '。
-
- 8:'D'如果內核剛剛死掉,比如有OOPS或者BUG。
-
-使用'Tainted: '字符串的主è¦åŽŸå› æ˜¯è¦å‘Šè¨´å…§æ ¸èª¿è©¦è€…,這是å¦æ˜¯ä¸€å€‹ä¹¾æ·¨çš„內核亦或發
-生了任何的ä¸æ­£å¸¸çš„事。汙染是永久的:å³ä½¿å‡ºéŒ¯çš„模塊已經被å¸è¼‰äº†ï¼Œæ±™æŸ“值ä»ç„¶å­˜åœ¨ï¼Œ
-以表明內核ä¸å†å€¼å¾—信任。
-
diff --git a/Documentation/translations/zh_TW/process/5.Posting.rst b/Documentation/translations/zh_TW/process/5.Posting.rst
index 5578bca403e6..280a8832ecc0 100644
--- a/Documentation/translations/zh_TW/process/5.Posting.rst
+++ b/Documentation/translations/zh_TW/process/5.Posting.rst
@@ -22,8 +22,7 @@
內核開發社å€å·²ç¶“發展出一套用於發布補ä¸çš„約定和éŽç¨‹ï¼›éµå¾ªé€™äº›ç´„定和éŽç¨‹å°‡ä½¿
åƒèˆ‡å…¶ä¸­çš„æ¯å€‹äººçš„生活更加輕鬆。本文檔試圖æ述這些約定的部分細節;更多信æ¯
也å¯åœ¨ä»¥ä¸‹æ–‡æª”中找到
-:ref:`Documentation/translations/zh_TW/process/submitting-patches.rst <tw_submittingpatches>`,
-:ref:`Documentation/translations/zh_TW/process/submitting-drivers.rst <tw_submittingdrivers>`
+:ref:`Documentation/translations/zh_TW/process/submitting-patches.rst <tw_submittingpatches>`
和 :ref:`Documentation/translations/zh_TW/process/submit-checklist.rst <tw_submitchecklist>`。
何時郵寄
diff --git a/Documentation/translations/zh_TW/process/8.Conclusion.rst b/Documentation/translations/zh_TW/process/8.Conclusion.rst
index 7572b17667d9..044fcc118bef 100644
--- a/Documentation/translations/zh_TW/process/8.Conclusion.rst
+++ b/Documentation/translations/zh_TW/process/8.Conclusion.rst
@@ -22,7 +22,6 @@
:ref:`Documentation/translations/zh_TW/process/howto.rst <tw_process_howto>`
文件是一個é‡è¦çš„起點;
:ref:`Documentation/translations/zh_TW/process/submitting-patches.rst <tw_submittingpatches>`
-和 :ref:`Documentation/translations/zh_TW/process/submitting-drivers.rst <tw_submittingdrivers>`
也是所有內核開發人員都應該閱讀的內容。許多內部內核API都是使用kerneldoc機制
記錄的;「make htmldocsã€æˆ–「make pdfdocsã€å¯ç”¨æ–¼ä»¥HTML或PDFæ ¼å¼ç”Ÿæˆé€™äº›æ–‡æª”
(儘管æŸäº›ç™¼è¡Œç‰ˆæ供的tex版本會é‡åˆ°å…§éƒ¨é™åˆ¶ï¼Œç„¡æ³•æ­£ç¢ºè™•ç†æ–‡æª”)。
diff --git a/Documentation/translations/zh_TW/process/embargoed-hardware-issues.rst b/Documentation/translations/zh_TW/process/embargoed-hardware-issues.rst
index 6c76fc96131a..fbde3e26eda5 100644
--- a/Documentation/translations/zh_TW/process/embargoed-hardware-issues.rst
+++ b/Documentation/translations/zh_TW/process/embargoed-hardware-issues.rst
@@ -177,7 +177,7 @@ CVE分é…
============= ========================================================
ARM
- AMD Tom Lendacky <tom.lendacky@amd.com>
+ AMD Tom Lendacky <thomas.lendacky@amd.com>
IBM
Intel Tony Luck <tony.luck@intel.com>
Qualcomm Trilok Soni <tsoni@codeaurora.org>
diff --git a/Documentation/translations/zh_TW/process/howto.rst b/Documentation/translations/zh_TW/process/howto.rst
index 2043691b92e3..68ae4411285b 100644
--- a/Documentation/translations/zh_TW/process/howto.rst
+++ b/Documentation/translations/zh_TW/process/howto.rst
@@ -99,7 +99,6 @@ Linux內核代碼中包å«æœ‰å¤§é‡çš„文檔。這些文檔å°æ–¼å­¸ç¿’如何與
的代碼。
:ref:`Documentation/translations/zh_TW/process/submitting-patches.rst <tw_submittingpatches>`
- :ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
這兩份文檔明確æ述如何創建和發é€è£œä¸ï¼Œå…¶ä¸­åŒ…括(但ä¸åƒ…é™æ–¼):
- 郵件內容
diff --git a/Documentation/translations/zh_TW/process/index.rst b/Documentation/translations/zh_TW/process/index.rst
index ec7ad14bfd13..c5c59b4fd595 100644
--- a/Documentation/translations/zh_TW/process/index.rst
+++ b/Documentation/translations/zh_TW/process/index.rst
@@ -43,7 +43,6 @@
.. toctree::
:maxdepth: 1
- submitting-drivers
submit-checklist
stable-api-nonsense
stable-kernel-rules
diff --git a/Documentation/translations/zh_TW/process/magic-number.rst b/Documentation/translations/zh_TW/process/magic-number.rst
index ae321a9aaece..f3f7082e17c6 100644
--- a/Documentation/translations/zh_TW/process/magic-number.rst
+++ b/Documentation/translations/zh_TW/process/magic-number.rst
@@ -61,88 +61,17 @@ Linux 魔術數
魔術數å 數字 çµæ§‹ 文件
===================== ================ ======================== ==========================================
PG_MAGIC 'P' pg_{read,write}_hdr ``include/linux/pg.h``
-CMAGIC 0x0111 user ``include/linux/a.out.h``
-MKISS_DRIVER_MAGIC 0x04bf mkiss_channel ``drivers/net/mkiss.h``
-HDLC_MAGIC 0x239e n_hdlc ``drivers/char/n_hdlc.c``
APM_BIOS_MAGIC 0x4101 apm_user ``arch/x86/kernel/apm_32.c``
-DB_MAGIC 0x4442 fc_info ``drivers/net/iph5526_novram.c``
-DL_MAGIC 0x444d fc_info ``drivers/net/iph5526_novram.c``
FASYNC_MAGIC 0x4601 fasync_struct ``include/linux/fs.h``
-FF_MAGIC 0x4646 fc_info ``drivers/net/iph5526_novram.c``
-PTY_MAGIC 0x5001 ``drivers/char/pty.c``
-PPP_MAGIC 0x5002 ppp ``include/linux/if_pppvar.h``
-SSTATE_MAGIC 0x5302 serial_state ``include/linux/serial.h``
SLIP_MAGIC 0x5302 slip ``drivers/net/slip.h``
-STRIP_MAGIC 0x5303 strip ``drivers/net/strip.c``
-SIXPACK_MAGIC 0x5304 sixpack ``drivers/net/hamradio/6pack.h``
-AX25_MAGIC 0x5316 ax_disp ``drivers/net/mkiss.h``
-TTY_MAGIC 0x5401 tty_struct ``include/linux/tty.h``
-MGSL_MAGIC 0x5401 mgsl_info ``drivers/char/synclink.c``
-TTY_DRIVER_MAGIC 0x5402 tty_driver ``include/linux/tty_driver.h``
MGSLPC_MAGIC 0x5402 mgslpc_info ``drivers/char/pcmcia/synclink_cs.c``
-USB_SERIAL_MAGIC 0x6702 usb_serial ``drivers/usb/serial/usb-serial.h``
-FULL_DUPLEX_MAGIC 0x6969 ``drivers/net/ethernet/dec/tulip/de2104x.c``
-USB_BLUETOOTH_MAGIC 0x6d02 usb_bluetooth ``drivers/usb/class/bluetty.c``
-RFCOMM_TTY_MAGIC 0x6d02 ``net/bluetooth/rfcomm/tty.c``
-USB_SERIAL_PORT_MAGIC 0x7301 usb_serial_port ``drivers/usb/serial/usb-serial.h``
-CG_MAGIC 0x00090255 ufs_cylinder_group ``include/linux/ufs_fs.h``
-LSEMAGIC 0x05091998 lse ``drivers/fc4/fc.c``
-GDTIOCTL_MAGIC 0x06030f07 gdth_iowr_str ``drivers/scsi/gdth_ioctl.h``
-RIEBL_MAGIC 0x09051990 ``drivers/net/atarilance.c``
-NBD_REQUEST_MAGIC 0x12560953 nbd_request ``include/linux/nbd.h``
-RED_MAGIC2 0x170fc2a5 (any) ``mm/slab.c``
BAYCOM_MAGIC 0x19730510 baycom_state ``drivers/net/baycom_epp.c``
-ISDN_X25IFACE_MAGIC 0x1e75a2b9 isdn_x25iface_proto_data ``drivers/isdn/isdn_x25iface.h``
-ECP_MAGIC 0x21504345 cdkecpsig ``include/linux/cdk.h``
-LSOMAGIC 0x27091997 lso ``drivers/fc4/fc.c``
-LSMAGIC 0x2a3b4d2a ls ``drivers/fc4/fc.c``
-WANPIPE_MAGIC 0x414C4453 sdla_{dump,exec} ``include/linux/wanpipe.h``
-CS_CARD_MAGIC 0x43525553 cs_card ``sound/oss/cs46xx.c``
-LABELCL_MAGIC 0x4857434c labelcl_info_s ``include/asm/ia64/sn/labelcl.h``
-ISDN_ASYNC_MAGIC 0x49344C01 modem_info ``include/linux/isdn.h``
-CTC_ASYNC_MAGIC 0x49344C01 ctc_tty_info ``drivers/s390/net/ctctty.c``
-ISDN_NET_MAGIC 0x49344C02 isdn_net_local_s ``drivers/isdn/i4l/isdn_net_lib.h``
-SAVEKMSG_MAGIC2 0x4B4D5347 savekmsg ``arch/*/amiga/config.c``
-CS_STATE_MAGIC 0x4c4f4749 cs_state ``sound/oss/cs46xx.c``
-SLAB_C_MAGIC 0x4f17a36d kmem_cache ``mm/slab.c``
-COW_MAGIC 0x4f4f4f4d cow_header_v1 ``arch/um/drivers/ubd_user.c``
-I810_CARD_MAGIC 0x5072696E i810_card ``sound/oss/i810_audio.c``
-TRIDENT_CARD_MAGIC 0x5072696E trident_card ``sound/oss/trident.c``
-ROUTER_MAGIC 0x524d4157 wan_device [in ``wanrouter.h`` pre 3.9]
-SAVEKMSG_MAGIC1 0x53415645 savekmsg ``arch/*/amiga/config.c``
-GDA_MAGIC 0x58464552 gda ``arch/mips/include/asm/sn/gda.h``
-RED_MAGIC1 0x5a2cf071 (any) ``mm/slab.c``
-EEPROM_MAGIC_VALUE 0x5ab478d2 lanai_dev ``drivers/atm/lanai.c``
HDLCDRV_MAGIC 0x5ac6e778 hdlcdrv_state ``include/linux/hdlcdrv.h``
-PCXX_MAGIC 0x5c6df104 channel ``drivers/char/pcxx.h``
KV_MAGIC 0x5f4b565f kernel_vars_s ``arch/mips/include/asm/sn/klkernvars.h``
-I810_STATE_MAGIC 0x63657373 i810_state ``sound/oss/i810_audio.c``
-TRIDENT_STATE_MAGIC 0x63657373 trient_state ``sound/oss/trident.c``
-M3_CARD_MAGIC 0x646e6f50 m3_card ``sound/oss/maestro3.c``
-FW_HEADER_MAGIC 0x65726F66 fw_header ``drivers/atm/fore200e.h``
-SLOT_MAGIC 0x67267321 slot ``drivers/hotplug/cpqphp.h``
-SLOT_MAGIC 0x67267322 slot ``drivers/hotplug/acpiphp.h``
-LO_MAGIC 0x68797548 nbd_device ``include/linux/nbd.h``
-M3_STATE_MAGIC 0x734d724d m3_state ``sound/oss/maestro3.c``
-VMALLOC_MAGIC 0x87654320 snd_alloc_track ``sound/core/memory.c``
-KMALLOC_MAGIC 0x87654321 snd_alloc_track ``sound/core/memory.c``
-PWC_MAGIC 0x89DC10AB pwc_device ``drivers/usb/media/pwc.h``
-NBD_REPLY_MAGIC 0x96744668 nbd_reply ``include/linux/nbd.h``
-ENI155_MAGIC 0xa54b872d midway_eprom ``drivers/atm/eni.h``
CODA_MAGIC 0xC0DAC0DA coda_file_info ``fs/coda/coda_fs_i.h``
-DPMEM_MAGIC 0xc0ffee11 gdt_pci_sram ``drivers/scsi/gdth.h``
YAM_MAGIC 0xF10A7654 yam_port ``drivers/net/hamradio/yam.c``
CCB_MAGIC 0xf2691ad2 ccb ``drivers/scsi/ncr53c8xx.c``
QUEUE_MAGIC_FREE 0xf7e1c9a3 queue_entry ``drivers/scsi/arm/queue.c``
QUEUE_MAGIC_USED 0xf7e1cc33 queue_entry ``drivers/scsi/arm/queue.c``
-HTB_CMAGIC 0xFEFAFEF1 htb_class ``net/sched/sch_htb.c``
NMI_MAGIC 0x48414d4d455201 nmi_s ``arch/mips/include/asm/sn/nmi.h``
===================== ================ ======================== ==========================================
-
-
-請注æ„,在è²éŸ³è¨˜æ†¶ç®¡ç†ä¸­ä»ç„¶æœ‰ä¸€äº›ç‰¹æ®Šçš„爲æ¯å€‹é©…動定義的魔術值。查看include/sound/sndmagic.h來ç²å–他們完整的列表信æ¯ã€‚很多OSSè²éŸ³é©…å‹•æ“有自己從音效å¡PCI ID構建的魔術值-他們也沒有被列在這裡。
-
-IrDAå­ç³»çµ±ä¹Ÿä½¿ç”¨äº†å¤§é‡çš„自己的魔術值,查看include/net/irda/irda.h來ç²å–他們完整的信æ¯ã€‚
-
-HFS是å¦å¤–一個比較大的使用魔術值的文件系統-ä½ å¯ä»¥åœ¨fs/hfs/hfs.h中找到他們。
-
diff --git a/Documentation/translations/zh_TW/process/submitting-drivers.rst b/Documentation/translations/zh_TW/process/submitting-drivers.rst
deleted file mode 100644
index 2fdd742318ba..000000000000
--- a/Documentation/translations/zh_TW/process/submitting-drivers.rst
+++ /dev/null
@@ -1,164 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-.. _tw_submittingdrivers:
-
-.. include:: ../disclaimer-zh_TW.rst
-
-:Original: :ref:`Documentation/process/submitting-drivers.rst
- <submittingdrivers>`
-
-如果想評論或更新本文的內容,請直接è¯ç¹«åŽŸæ–‡æª”的維護者。如果你使用英文
-交æµæœ‰å›°é›£çš„話,也å¯ä»¥å‘中文版維護者求助。如果本翻譯更新ä¸åŠæ™‚或者翻
-譯存在å•é¡Œï¼Œè«‹è¯ç¹«ä¸­æ–‡ç‰ˆç¶­è­·è€…::
-
- 中文版維護者: æŽé™½ Li Yang <leoyang.li@nxp.com>
- 中文版翻譯者: æŽé™½ Li Yang <leoyang.li@nxp.com>
- 中文版校譯者: é™³ç¦ Maggie Chen <chenqi@beyondsoft.com>
- çŽ‹è° Wang Cong <xiyou.wangcong@gmail.com>
- å¼µå· Zhang Wei <wezhang@outlook.com>
- 胡皓文 Hu Haowen <src.res@email.cn>
-
-å¦‚ä½•å‘ Linux 內核æ交驅動程åº
-=============================
-
-這篇文檔將會解釋如何å‘ä¸åŒçš„內核æºç¢¼æ¨¹æ交設備驅動程åºã€‚請注æ„,如果你感
-興趣的是顯å¡é©…動程åºï¼Œä½ ä¹Ÿè¨±æ‡‰è©²è¨ªå• XFree86 é …ç›®(https://www.xfree86.org/)
-å’Œï¼æˆ– X.org é …ç›® (https://x.org)。
-
-å¦è«‹åƒé–± Documentation/translations/zh_TW/process/submitting-patches.rst 文檔。
-
-
-分é…設備號
-----------
-
-塊設備和字符設備的主設備號與從設備號是由 Linux 命å編號分é…æ¬Šå¨ LANANA(
-ç¾åœ¨æ˜¯ Torben Mathiasen)負責分é…。申請的網å€æ˜¯ https://www.lanana.org/。
-å³ä½¿ä¸æº–å‚™æ交到主æµå…§æ ¸çš„設備驅動也需è¦åœ¨é€™è£¡åˆ†é…設備號。有關詳細信æ¯ï¼Œ
-è«‹åƒé–± Documentation/admin-guide/devices.rst。
-
-如果你使用的ä¸æ˜¯å·²ç¶“分é…的設備號,那麼當你æ交設備驅動的時候,它將會被強
-制分é…一個新的設備號,å³ä¾¿é€™å€‹è¨­å‚™è™Ÿå’Œä½ ä¹‹å‰ç™¼çµ¦å®¢æˆ¶çš„截然ä¸åŒã€‚
-
-設備驅動的æ交å°è±¡
-------------------
-
-Linux 2.0:
- 此內核æºç¢¼æ¨¹ä¸æŽ¥å—新的驅動程åºã€‚
-
-Linux 2.2:
- 此內核æºç¢¼æ¨¹ä¸æŽ¥å—新的驅動程åºã€‚
-
-Linux 2.4:
- 如果所屬的代碼領域在內核的 MAINTAINERS 文件中列有一個總維護者,
- 那麼請將驅動程åºæ交給他。如果此維護者沒有回應或者你找ä¸åˆ°æ°ç•¶çš„
- 維護者,那麼請è¯ç¹« Willy Tarreau <w@1wt.eu>。
-
-Linux 2.6:
- 除了éµå¾ªå’Œ 2.4 版內核åŒæ¨£çš„è¦å‰‡å¤–,你還需è¦åœ¨ linux-kernel 郵件
- 列表上跟蹤最新的 API è®ŠåŒ–ã€‚å‘ Linux 2.6 內核æ交驅動的頂級è¯ç¹«äºº
- 是 Andrew Morton <akpm@linux-foundation.org>。
-
-決定設備驅動能å¦è¢«æŽ¥å—çš„æ¢ä»¶
-----------------------------
-
-許å¯ï¼š 代碼必須使用 GNU 通用公開許å¯è­‰ (GPL) æ交給 Linux,但是
- 我們並ä¸è¦æ±‚ GPL 是唯一的許å¯ã€‚你或許會希望åŒæ™‚使用多種
- 許å¯è­‰ç™¼å¸ƒï¼Œå¦‚果希望驅動程åºå¯ä»¥è¢«å…¶ä»–é–‹æºç¤¾å€ï¼ˆæ¯”如BSD)
- 使用。請åƒè€ƒ include/linux/module.h 文件中所列出的å¯è¢«
- 接å—共存的許å¯ã€‚
-
-版權: 版權所有者必須åŒæ„使用 GPL 許å¯ã€‚最好æ交者和版權所有者
- 是相åŒå€‹äººæˆ–實體。å¦å‰‡ï¼Œå¿…需列出授權使用 GPL 的版權所有
- 人或實體,以備驗證之需。
-
-接å£ï¼š 如果你的驅動程åºä½¿ç”¨ç¾æˆçš„接å£ä¸¦ä¸”和其他åŒé¡žçš„驅動程åºè¡Œ
- 爲相似,而ä¸æ˜¯åŽ»ç™¼æ˜Žç„¡è¬‚的新接å£ï¼Œé‚£éº¼å®ƒå°‡æœƒæ›´å®¹æ˜“被接å—。
- 如果你需è¦ä¸€å€‹ Linux å’Œ NT 的通用驅動接å£ï¼Œé‚£éº¼è«‹åœ¨ç”¨
- 戶空間實ç¾å®ƒã€‚
-
-代碼: 請使用 Documentation/process/coding-style.rst 中所æè¿°çš„ Linux 代碼風
- 格。如果你的æŸäº›ä»£ç¢¼æ®µï¼ˆä¾‹å¦‚那些與 Windows 驅動程åºåŒ…å…±
- 享的代碼段)需è¦ä½¿ç”¨å…¶ä»–æ ¼å¼ï¼Œè€Œä½ å»åªå¸Œæœ›ç¶­è­·ä¸€ä»½ä»£ç¢¼ï¼Œ
- 那麼請將它們很好地å€åˆ†å‡ºä¾†ï¼Œä¸¦ä¸”註明原因。
-
-å¯ç§»æ¤æ€§ï¼š 請注æ„,指é‡ä¸¦ä¸æ°¸é æ˜¯ 32 ä½çš„,ä¸æ˜¯æ‰€æœ‰çš„計算機都使用å°
- å°¾æ¨¡å¼ (little endian) 存儲數據,ä¸æ˜¯æ‰€æœ‰çš„人都æ“有浮點
- 單元,ä¸è¦éš¨ä¾¿åœ¨ä½ çš„驅動程åºé‡ŒåµŒå…¥ x86 彙編指令。åªèƒ½åœ¨
- x86 上é‹è¡Œçš„驅動程åºä¸€èˆ¬æ˜¯ä¸å—歡迎的。雖然你å¯èƒ½åªæœ‰ x86
- 硬體,很難測試驅動程åºåœ¨å…¶ä»–å¹³å°ä¸Šæ˜¯å¦å¯ç”¨ï¼Œä½†æ˜¯ç¢ºä¿ä»£ç¢¼
- å¯ä»¥è¢«è¼•é¬†åœ°ç§»æ¤å»æ˜¯å¾ˆç°¡å–®çš„。
-
-清晰度: åšåˆ°æ‰€æœ‰äººéƒ½èƒ½ä¿®è£œé€™å€‹é©…動程åºå°‡æœƒå¾ˆæœ‰å¥½è™•ï¼Œå› çˆ²é€™æ¨£ä½ å°‡
- 會直接收到修復的補ä¸è€Œä¸æ˜¯ bug 報告。如果你æ交一個試圖
- éš±è—硬體工作機ç†çš„驅動程åºï¼Œé‚£éº¼å®ƒå°‡æœƒè¢«æ‰”進廢紙ç°ã€‚
-
-é›»æºç®¡ç†ï¼š 因爲 Linux 正在被很多行動è£ç½®å’Œæ¡Œé¢ç³»çµ±ä½¿ç”¨ï¼Œæ‰€ä»¥ä½ çš„é©…
- 動程åºä¹Ÿå¾ˆæœ‰å¯èƒ½è¢«ä½¿ç”¨åœ¨é€™äº›è¨­å‚™ä¸Šã€‚它應該支æŒæœ€åŸºæœ¬çš„é›»
- æºç®¡ç†ï¼Œå³åœ¨éœ€è¦çš„情æ³ä¸‹å¯¦ç¾ç³»çµ±ç´šä¼‘眠和喚醒è¦ç”¨åˆ°çš„
- .suspend å’Œ .resume 函數。你應該檢查你的驅動程åºæ˜¯å¦èƒ½æ­£
- 確地處ç†ä¼‘眠與喚醒,如果實在無法確èªï¼Œè«‹è‡³å°‘把 .suspend
- 函數定義æˆè¿”回 -ENOSYS(功能未實ç¾ï¼‰éŒ¯èª¤ã€‚你還應該嘗試確
- ä¿ä½ çš„驅動在什麼都ä¸ä¹¾çš„情æ³ä¸‹å°‡è€—é›»é™åˆ°æœ€ä½Žã€‚è¦ç²å¾—é©…å‹•
- 程åºæ¸¬è©¦çš„指導,請åƒé–±
- Documentation/power/drivers-testing.rst。有關驅動程åºé›»
- æºç®¡ç†å•é¡Œç›¸å°å…¨é¢çš„概述,請åƒé–±
- Documentation/driver-api/pm/devices.rst。
-
-管ç†ï¼š 如果一個驅動程åºçš„作者還在進行有效的維護,那麼通常除了那
- 些明顯正確且ä¸éœ€è¦ä»»ä½•æª¢æŸ¥çš„補ä¸ä»¥å¤–,其他所有的補ä¸éƒ½æœƒ
- 被轉發給作者。如果你希望æˆçˆ²é©…動程åºçš„è¯ç¹«äººå’Œæ›´æ–°è€…,最
- 好在代碼注釋中寫明並且在 MAINTAINERS 文件中加入這個驅動
- 程åºçš„æ¢ç›®ã€‚
-
-ä¸å½±éŸ¿è¨­å‚™é©…動能å¦è¢«æŽ¥å—çš„æ¢ä»¶
-------------------------------
-
-供應商: 由硬體供應商來維護驅動程åºé€šå¸¸æ˜¯ä¸€ä»¶å¥½äº‹ã€‚ä¸éŽï¼Œå¦‚æžœæºç¢¼
- 樹里已經有其他人æ供了å¯ç©©å®šå·¥ä½œçš„驅動程åºï¼Œé‚£éº¼è«‹ä¸è¦æœŸ
- 望「我是供應商ã€æœƒæˆçˆ²å…§æ ¸æ”¹ç”¨ä½ çš„驅動程åºçš„ç†ç”±ã€‚ç†æƒ³çš„情
- æ³æ˜¯ï¼šä¾›æ‡‰å•†èˆ‡ç¾æœ‰é©…動程åºçš„作者åˆä½œï¼Œæ§‹å»ºä¸€å€‹çµ±ä¸€å®Œç¾Žçš„
- 驅動程åºã€‚
-
-作者: 驅動程åºæ˜¯ç”±å¤§çš„ Linux å…¬å¸ç ”發還是由你個人編寫,並ä¸å½±
- 響其是å¦èƒ½è¢«å…§æ ¸æŽ¥å—。沒有人å°å…§æ ¸æºç¢¼æ¨¹äº«æœ‰ç‰¹æ¬Šã€‚åªè¦ä½ 
- 充分了解內核社å€ï¼Œä½ å°±æœƒç™¼ç¾é€™ä¸€é»žã€‚
-
-
-資æºåˆ—表
---------
-
-Linux 內核主æºç¢¼æ¨¹ï¼š
- ftp.??.kernel.org:/pub/linux/kernel/...
- ?? == 你的國家代碼,例如 "cn"ã€"us"ã€"uk"ã€"fr" 等等
-
-Linux 內核郵件列表:
- linux-kernel@vger.kernel.org
- [å¯é€šéŽå‘majordomo@vger.kernel.org發郵件來訂閱]
-
-Linux 設備驅動程åºï¼Œç¬¬ä¸‰ç‰ˆï¼ˆæŽ¢è¨Ž 2.6.10 版內核):
- https://lwn.net/Kernel/LDD3/ (å…費版)
-
-LWN.net:
- æ¯å‘¨å…§æ ¸é–‹ç™¼æ´»å‹•æ‘˜è¦ - https://lwn.net/
-
- 2.6 版中 API 的變更:
-
- https://lwn.net/Articles/2.6-kernel-api/
-
- 將舊版內核的驅動程åºç§»æ¤åˆ° 2.6 版:
-
- https://lwn.net/Articles/driver-porting/
-
-內核新手(KernelNewbies):
- 爲新的內核開發者æ供文檔和幫助
- https://kernelnewbies.org/
-
-Linux USB項目:
- http://www.linux-usb.org/
-
-寫內核驅動的「ä¸è¦ã€ï¼ˆArjan van de Ven著):
- http://www.fenrus.org/how-to-not-write-a-device-driver-paper.pdf
-
-內核清潔工 (Kernel Janitor):
- https://kernelnewbies.org/KernelJanitors
-
diff --git a/Documentation/translations/zh_TW/process/submitting-patches.rst b/Documentation/translations/zh_TW/process/submitting-patches.rst
index c4fd48f5bd8b..3f77ef5d48a0 100644
--- a/Documentation/translations/zh_TW/process/submitting-patches.rst
+++ b/Documentation/translations/zh_TW/process/submitting-patches.rst
@@ -26,9 +26,7 @@
以下文檔å«æœ‰å¤§é‡ç°¡æ½”的建議, 具體請見:
:ref:`Documentation/process <development_process_main>`
åŒæ¨£ï¼Œ:ref:`Documentation/translations/zh_TW/process/submit-checklist.rst <tw_submitchecklist>`
-給出在æ交代碼å‰éœ€è¦æª¢æŸ¥çš„項目的列表。如果你在æ交一個驅動程åºï¼Œé‚£éº¼
-åŒæ™‚閱讀一下:
-:ref:`Documentation/process/submitting-drivers.rst <submittingdrivers>`
+給出在æ交代碼å‰éœ€è¦æª¢æŸ¥çš„項目的列表。
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diff --git a/Documentation/usb/gadget-testing.rst b/Documentation/usb/gadget-testing.rst
index 1c37159fa171..2278c9ffb74a 100644
--- a/Documentation/usb/gadget-testing.rst
+++ b/Documentation/usb/gadget-testing.rst
@@ -333,6 +333,12 @@ In each lun directory there are the following attribute files:
being a CD-ROM.
nofua Flag specifying that FUA flag
in SCSI WRITE(10,12)
+ forced_eject This write-only file is useful only when
+ the function is active. It causes the backing
+ file to be forcibly detached from the LUN,
+ regardless of whether the host has allowed it.
+ Any non-zero number of bytes written will
+ result in ejection.
=============== ==============================================
Testing the MASS STORAGE function
diff --git a/Documentation/usb/mass-storage.rst b/Documentation/usb/mass-storage.rst
index d181b47c3cb6..f399ec631599 100644
--- a/Documentation/usb/mass-storage.rst
+++ b/Documentation/usb/mass-storage.rst
@@ -181,6 +181,15 @@ sysfs entries
Reflects the state of nofua flag for given logical unit. It can
be read and written.
+ - forced_eject
+
+ When written into, it causes the backing file to be forcibly
+ detached from the LUN, regardless of whether the host has allowed
+ it. The content doesn't matter, any non-zero number of bytes
+ written will result in ejection.
+
+ Can not be read.
+
Other then those, as usual, the values of module parameters can be
read from /sys/module/g_mass_storage/parameters/* files.
diff --git a/Documentation/usb/usbip_protocol.rst b/Documentation/usb/usbip_protocol.rst
index 0b8541fda4d8..adc158967cc6 100644
--- a/Documentation/usb/usbip_protocol.rst
+++ b/Documentation/usb/usbip_protocol.rst
@@ -340,13 +340,12 @@ USBIP_CMD_SUBMIT:
| 0 | 20 | usbip_header_basic, 'command' shall be 0x00000001 |
+-----------+--------+---------------------------------------------------+
| 0x14 | 4 | transfer_flags: possible values depend on the |
-| | | URB transfer_flags (refer to URB doc in |
-| | | Documentation/driver-api/usb/URB.rst) |
-| | | but with URB_NO_TRANSFER_DMA_MAP masked. Refer to |
-| | | function usbip_pack_cmd_submit and function |
-| | | tweak_transfer_flags in drivers/usb/usbip/ |
-| | | usbip_common.c. The following fields may also ref |
-| | | to function usbip_pack_cmd_submit and URB doc |
+| | | USBIP_URB transfer_flags. |
+| | | Refer to include/uapi/linux/usbip.h and |
+| | | Documentation/driver-api/usb/URB.rst. |
+| | | Refer to usbip_pack_cmd_submit() and |
+| | | tweak_transfer_flags() in drivers/usb/usbip/ |
+| | | usbip_common.c. |
+-----------+--------+---------------------------------------------------+
| 0x18 | 4 | transfer_buffer_length: |
| | | use URB transfer_buffer_length |
diff --git a/Documentation/userspace-api/index.rst b/Documentation/userspace-api/index.rst
index a61eac0c73f8..c78da9ce0ec4 100644
--- a/Documentation/userspace-api/index.rst
+++ b/Documentation/userspace-api/index.rst
@@ -26,6 +26,7 @@ place where this information is gathered.
ioctl/index
iommu
media/index
+ netlink/index
sysfs-platform_profile
vduse
futex2
diff --git a/Documentation/userspace-api/ioctl/ioctl-number.rst b/Documentation/userspace-api/ioctl/ioctl-number.rst
index fcab013e47c9..5f81e2a24a5c 100644
--- a/Documentation/userspace-api/ioctl/ioctl-number.rst
+++ b/Documentation/userspace-api/ioctl/ioctl-number.rst
@@ -120,7 +120,7 @@ Code Seq# Include File Comments
'C' 01-2F linux/capi.h conflict!
'C' F0-FF drivers/net/wan/cosa.h conflict!
'D' all arch/s390/include/asm/dasd.h
-'D' 40-5F drivers/scsi/dpt/dtpi_ioctl.h
+'D' 40-5F drivers/scsi/dpt/dtpi_ioctl.h Dead since 2022
'D' 05 drivers/scsi/pmcraid.h
'E' all linux/input.h conflict!
'E' 00-0F xen/evtchn.h conflict!
@@ -308,7 +308,6 @@ Code Seq# Include File Comments
0x89 00-06 arch/x86/include/asm/sockios.h
0x89 0B-DF linux/sockios.h
0x89 E0-EF linux/sockios.h SIOCPROTOPRIVATE range
-0x89 E0-EF linux/dn.h PROTOPRIVATE range
0x89 F0-FF linux/sockios.h SIOCDEVPRIVATE range
0x8B all linux/wireless.h
0x8C 00-3F WiNRADiO driver
diff --git a/Documentation/userspace-api/landlock.rst b/Documentation/userspace-api/landlock.rst
index b8ea59493964..cec780c2f497 100644
--- a/Documentation/userspace-api/landlock.rst
+++ b/Documentation/userspace-api/landlock.rst
@@ -8,7 +8,7 @@ Landlock: unprivileged access control
=====================================
:Author: Mickaël Salaün
-:Date: May 2022
+:Date: September 2022
The goal of Landlock is to enable to restrict ambient rights (e.g. global
filesystem access) for a set of processes. Because Landlock is a stackable
@@ -69,7 +69,7 @@ should try to protect users as much as possible whatever the kernel they are
using. To avoid binary enforcement (i.e. either all security features or
none), we can leverage a dedicated Landlock command to get the current version
of the Landlock ABI and adapt the handled accesses. Let's check if we should
-remove the `LANDLOCK_ACCESS_FS_REFER` access right which is only supported
+remove the ``LANDLOCK_ACCESS_FS_REFER`` access right which is only supported
starting with the second version of the ABI.
.. code-block:: c
@@ -128,7 +128,7 @@ descriptor.
It may also be required to create rules following the same logic as explained
for the ruleset creation, by filtering access rights according to the Landlock
ABI version. In this example, this is not required because
-`LANDLOCK_ACCESS_FS_REFER` is not allowed by any rule.
+``LANDLOCK_ACCESS_FS_REFER`` is not allowed by any rule.
We now have a ruleset with one rule allowing read access to ``/usr`` while
denying all other handled accesses for the filesystem. The next step is to
@@ -154,8 +154,8 @@ The current thread is now ready to sandbox itself with the ruleset.
}
close(ruleset_fd);
-If the `landlock_restrict_self` system call succeeds, the current thread is now
-restricted and this policy will be enforced on all its subsequently created
+If the ``landlock_restrict_self`` system call succeeds, the current thread is
+now restricted and this policy will be enforced on all its subsequently created
children as well. Once a thread is landlocked, there is no way to remove its
security policy; only adding more restrictions is allowed. These threads are
now in a new Landlock domain, merge of their parent one (if any) with the new
@@ -170,12 +170,13 @@ It is recommended setting access rights to file hierarchy leaves as much as
possible. For instance, it is better to be able to have ``~/doc/`` as a
read-only hierarchy and ``~/tmp/`` as a read-write hierarchy, compared to
``~/`` as a read-only hierarchy and ``~/tmp/`` as a read-write hierarchy.
-Following this good practice leads to self-sufficient hierarchies that don't
+Following this good practice leads to self-sufficient hierarchies that do not
depend on their location (i.e. parent directories). This is particularly
relevant when we want to allow linking or renaming. Indeed, having consistent
access rights per directory enables to change the location of such directory
without relying on the destination directory access rights (except those that
-are required for this operation, see `LANDLOCK_ACCESS_FS_REFER` documentation).
+are required for this operation, see ``LANDLOCK_ACCESS_FS_REFER``
+documentation).
Having self-sufficient hierarchies also helps to tighten the required access
rights to the minimal set of data. This also helps avoid sinkhole directories,
i.e. directories where data can be linked to but not linked from. However,
@@ -259,7 +260,7 @@ Backward and forward compatibility
Landlock is designed to be compatible with past and future versions of the
kernel. This is achieved thanks to the system call attributes and the
-associated bitflags, particularly the ruleset's `handled_access_fs`. Making
+associated bitflags, particularly the ruleset's ``handled_access_fs``. Making
handled access right explicit enables the kernel and user space to have a clear
contract with each other. This is required to make sure sandboxing will not
get stricter with a system update, which could break applications.
@@ -380,8 +381,8 @@ by the Documentation/admin-guide/cgroup-v1/memory.rst.
Previous limitations
====================
-File renaming and linking (ABI 1)
----------------------------------
+File renaming and linking (ABI < 2)
+-----------------------------------
Because Landlock targets unprivileged access controls, it needs to properly
handle composition of rules. Such property also implies rules nesting.
@@ -394,7 +395,7 @@ according to the potentially lost constraints. To protect against privilege
escalations through renaming or linking, and for the sake of simplicity,
Landlock previously limited linking and renaming to the same directory.
Starting with the Landlock ABI version 2, it is now possible to securely
-control renaming and linking thanks to the new `LANDLOCK_ACCESS_FS_REFER`
+control renaming and linking thanks to the new ``LANDLOCK_ACCESS_FS_REFER``
access right.
.. _kernel_support:
@@ -403,14 +404,14 @@ Kernel support
==============
Landlock was first introduced in Linux 5.13 but it must be configured at build
-time with `CONFIG_SECURITY_LANDLOCK=y`. Landlock must also be enabled at boot
+time with ``CONFIG_SECURITY_LANDLOCK=y``. Landlock must also be enabled at boot
time as the other security modules. The list of security modules enabled by
-default is set with `CONFIG_LSM`. The kernel configuration should then
-contains `CONFIG_LSM=landlock,[...]` with `[...]` as the list of other
+default is set with ``CONFIG_LSM``. The kernel configuration should then
+contains ``CONFIG_LSM=landlock,[...]`` with ``[...]`` as the list of other
potentially useful security modules for the running system (see the
-`CONFIG_LSM` help).
+``CONFIG_LSM`` help).
-If the running kernel doesn't have `landlock` in `CONFIG_LSM`, then we can
+If the running kernel does not have ``landlock`` in ``CONFIG_LSM``, then we can
still enable it by adding ``lsm=landlock,[...]`` to
Documentation/admin-guide/kernel-parameters.rst thanks to the bootloader
configuration.
diff --git a/Documentation/userspace-api/media/drivers/dw100.rst b/Documentation/userspace-api/media/drivers/dw100.rst
new file mode 100644
index 000000000000..fceea6ece622
--- /dev/null
+++ b/Documentation/userspace-api/media/drivers/dw100.rst
@@ -0,0 +1,84 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+DW100 dewarp driver
+===================
+
+The Vivante DW100 Dewarp Processor IP core found on i.MX8MP SoC applies a
+programmable geometrical transformation on the input image to correct distortion
+introduced by lenses.
+
+The transformation function is exposed by the hardware as a grid map with 16x16
+pixel macroblocks indexed using X, Y vertex coordinates.
+::
+
+ Image width
+ <--------------------------------------->
+
+ ^ .-------.-------.-------.-------.-------.
+ | | 16x16 | | | | |
+ I | | pixel | | | | |
+ m | | block | | | | |
+ a | .-------.-------.-------.-------.-------.
+ g | | | | | | |
+ e | | | | | | |
+ | | | | | | |
+ h | .-------.-------.-------.-------.-------.
+ e | | | | | | |
+ i | | | | | | |
+ g | | | | | | |
+ h | .-------.-------.-------.-------.-------.
+ t | | | | | | |
+ | | | | | | |
+ | | | | | | |
+ v '-------'-------'-------'-------'-------'
+
+ Grid of Image Blocks for Dewarping Map
+
+
+Each x, y coordinate register uses 16 bits to record the coordinate address in
+an unsigned 12.4 fixed point format (UQ12.4).
+::
+
+ .----------------------.--------..----------------------.--------.
+ | 31~20 | 19~16 || 15~4 | 3~0 |
+ | (integer) | (frac) || (integer) | (frac) |
+ '----------------------'--------''----------------------'--------'
+ <-------------------------------><------------------------------->
+ Y coordinate X coordinate
+
+ Remap Register Layout
+
+The dewarping map is set from applications using the
+V4L2_CID_DW100_DEWARPING_16x16_VERTEX_MAP control. The control contains
+an array of u32 values storing (x, y) destination coordinates for each
+vertex of the grid. The x coordinate is stored in the 16 LSBs and the y
+coordinate in the 16 MSBs.
+
+The number of elements in the array must match the image size:
+
+.. code-block:: C
+
+ elems = (DIV_ROUND_UP(width, 16) + 1) * (DIV_ROUND_UP(height, 16) + 1);
+
+If the control has not been set by the application, the driver uses an identity
+map.
+
+More details on the DW100 hardware operations can be found in
+*chapter 13.15 DeWarp* of IMX8MP_ reference manual.
+
+The Vivante DW100 m2m driver implements the following driver-specific control:
+
+``V4L2_CID_DW100_DEWARPING_16x16_VERTEX_MAP (__u32 array)``
+ Specifies to DW100 driver its dewarping map (aka LUT) blob as described in
+ *chapter 13.15.2.3 Dewarping Remap* of IMX8MP_ reference manual as an U32
+ dynamic array. The image is divided into many small 16x16 blocks. If the
+ width/height of the image is not divisible by 16, the size of the
+ rightmost/bottommost block is the remainder. The dewarping map only saves
+ the vertex coordinates of the block. The dewarping grid map is comprised of
+ vertex coordinates for x and y. Each x, y coordinate register uses 16 bits
+ (UQ12.4) to record the coordinate address, with the Y coordinate in the
+ upper bits and X in the lower bits. The driver modifies the dimensions of
+ this control when the sink format is changed, to reflect the new input
+ resolution.
+
+.. _IMX8MP: https://www.nxp.com/webapp/Download?colCode=IMX8MPRM
diff --git a/Documentation/userspace-api/media/drivers/hantro.rst b/Documentation/userspace-api/media/drivers/hantro.rst
deleted file mode 100644
index cd9754b4e005..000000000000
--- a/Documentation/userspace-api/media/drivers/hantro.rst
+++ /dev/null
@@ -1,19 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-Hantro video decoder driver
-===========================
-
-The Hantro video decoder driver implements the following driver-specific controls:
-
-``V4L2_CID_HANTRO_HEVC_SLICE_HEADER_SKIP (integer)``
- Specifies to Hantro HEVC video decoder driver the number of data (in bits) to
- skip in the slice segment header.
- If non-IDR, the bits to be skipped go from syntax element "pic_output_flag"
- to before syntax element "slice_temporal_mvp_enabled_flag".
- If IDR, the skipped bits are just "pic_output_flag"
- (separate_colour_plane_flag is not supported).
-
-.. note::
-
- This control is not yet part of the public kernel API and
- it is expected to change.
diff --git a/Documentation/userspace-api/media/drivers/index.rst b/Documentation/userspace-api/media/drivers/index.rst
index 12e3c512d718..32f82aed47d9 100644
--- a/Documentation/userspace-api/media/drivers/index.rst
+++ b/Documentation/userspace-api/media/drivers/index.rst
@@ -33,7 +33,7 @@ For more details see the file COPYING in the source distribution of Linux.
ccs
cx2341x-uapi
- hantro
+ dw100
imx-uapi
max2175
meye-uapi
diff --git a/Documentation/userspace-api/media/v4l/async.rst b/Documentation/userspace-api/media/v4l/async.rst
deleted file mode 100644
index d6960ff5c382..000000000000
--- a/Documentation/userspace-api/media/v4l/async.rst
+++ /dev/null
@@ -1,9 +0,0 @@
-.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
-
-.. _async:
-
-****************
-Asynchronous I/O
-****************
-
-This method is not defined yet.
diff --git a/Documentation/userspace-api/media/v4l/control.rst b/Documentation/userspace-api/media/v4l/control.rst
index 3eec65174260..4463fce694b0 100644
--- a/Documentation/userspace-api/media/v4l/control.rst
+++ b/Documentation/userspace-api/media/v4l/control.rst
@@ -461,10 +461,10 @@ Example: Changing controls
perror("VIDIOC_QUERYCTRL");
exit(EXIT_FAILURE);
} else {
- printf("V4L2_CID_BRIGHTNESS is not supportedn");
+ printf("V4L2_CID_BRIGHTNESS is not supported\n");
}
} else if (queryctrl.flags & V4L2_CTRL_FLAG_DISABLED) {
- printf("V4L2_CID_BRIGHTNESS is not supportedn");
+ printf("V4L2_CID_BRIGHTNESS is not supported\n");
} else {
memset(&control, 0, sizeof (control));
control.id = V4L2_CID_BRIGHTNESS;
diff --git a/Documentation/userspace-api/media/v4l/dev-raw-vbi.rst b/Documentation/userspace-api/media/v4l/dev-raw-vbi.rst
index 58f97c3a7792..2bec20d87928 100644
--- a/Documentation/userspace-api/media/v4l/dev-raw-vbi.rst
+++ b/Documentation/userspace-api/media/v4l/dev-raw-vbi.rst
@@ -41,7 +41,7 @@ Devices supporting the raw VBI capturing or output API set the
in the ``capabilities`` field of struct
:c:type:`v4l2_capability` returned by the
:ref:`VIDIOC_QUERYCAP` ioctl. At least one of the
-read/write, streaming or asynchronous I/O methods must be supported. VBI
+read/write or streaming I/O methods must be supported. VBI
devices may or may not have a tuner or modulator.
Supplemental Functions
diff --git a/Documentation/userspace-api/media/v4l/dev-sdr.rst b/Documentation/userspace-api/media/v4l/dev-sdr.rst
index 928884dfe09d..dfdeddbca41f 100644
--- a/Documentation/userspace-api/media/v4l/dev-sdr.rst
+++ b/Documentation/userspace-api/media/v4l/dev-sdr.rst
@@ -34,7 +34,7 @@ Devices supporting the SDR transmitter interface set the
device has an Digital to Analog Converter (DAC), which is a mandatory
element for the SDR transmitter.
-At least one of the read/write, streaming or asynchronous I/O methods
+At least one of the read/write or streaming I/O methods
must be supported.
diff --git a/Documentation/userspace-api/media/v4l/dev-sliced-vbi.rst b/Documentation/userspace-api/media/v4l/dev-sliced-vbi.rst
index 97ec2b115c71..44415822c7c5 100644
--- a/Documentation/userspace-api/media/v4l/dev-sliced-vbi.rst
+++ b/Documentation/userspace-api/media/v4l/dev-sliced-vbi.rst
@@ -36,7 +36,7 @@ Devices supporting the sliced VBI capturing or output API set the
respectively, in the ``capabilities`` field of struct
:c:type:`v4l2_capability` returned by the
:ref:`VIDIOC_QUERYCAP` ioctl. At least one of the
-read/write, streaming or asynchronous :ref:`I/O methods <io>` must be
+read/write or streaming :ref:`I/O methods <io>` must be
supported. Sliced VBI devices may have a tuner or modulator.
Supplemental Functions
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
index bee73065e993..cd33857d947d 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec-stateless.rst
@@ -2048,3 +2048,905 @@ This structure contains all loop filter related parameters. See sections
- 0x2
- When set, the bitstream contains additional syntax elements that
specify which mode and reference frame deltas are to be updated.
+
+.. _v4l2-codec-stateless-hevc:
+
+``V4L2_CID_STATELESS_HEVC_SPS (struct)``
+ Specifies the Sequence Parameter Set fields (as extracted from the
+ bitstream) for the associated HEVC slice data.
+ These bitstream parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.3.2 "Sequence parameter set RBSP
+ semantics" of the specification.
+
+.. c:type:: v4l2_ctrl_hevc_sps
+
+.. raw:: latex
+
+ \small
+
+.. tabularcolumns:: |p{1.2cm}|p{9.2cm}|p{6.9cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_sps
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``video_parameter_set_id``
+ - Specifies the value of the vps_video_parameter_set_id of the active VPS
+ as described in section "7.4.3.2.1 General sequence parameter set RBSP semantics"
+ of H.265 specifications.
+ * - __u8
+ - ``seq_parameter_set_id``
+ - Provides an identifier for the SPS for reference by other syntax elements
+ as described in section "7.4.3.2.1 General sequence parameter set RBSP semantics"
+ of H.265 specifications.
+ * - __u16
+ - ``pic_width_in_luma_samples``
+ - Specifies the width of each decoded picture in units of luma samples.
+ * - __u16
+ - ``pic_height_in_luma_samples``
+ - Specifies the height of each decoded picture in units of luma samples.
+ * - __u8
+ - ``bit_depth_luma_minus8``
+ - This value plus 8 specifies the bit depth of the samples of the luma array.
+ * - __u8
+ - ``bit_depth_chroma_minus8``
+ - This value plus 8 specifies the bit depth of the samples of the chroma arrays.
+ * - __u8
+ - ``log2_max_pic_order_cnt_lsb_minus4``
+ - Specifies the value of the variable MaxPicOrderCntLsb.
+ * - __u8
+ - ``sps_max_dec_pic_buffering_minus1``
+ - This value plus 1 specifies the maximum required size of the decoded picture buffer for
+ the coded video sequence (CVS).
+ * - __u8
+ - ``sps_max_num_reorder_pics``
+ - Indicates the maximum allowed number of pictures.
+ * - __u8
+ - ``sps_max_latency_increase_plus1``
+ - Used to signal MaxLatencyPictures, which indicates the maximum number of
+ pictures that can precede any picture in output order and follow that
+ picture in decoding order.
+ * - __u8
+ - ``log2_min_luma_coding_block_size_minus3``
+ - This value plus 3 specifies the minimum luma coding block size.
+ * - __u8
+ - ``log2_diff_max_min_luma_coding_block_size``
+ - Specifies the difference between the maximum and minimum luma coding block size.
+ * - __u8
+ - ``log2_min_luma_transform_block_size_minus2``
+ - This value plus 2 specifies the minimum luma transform block size.
+ * - __u8
+ - ``log2_diff_max_min_luma_transform_block_size``
+ - Specifies the difference between the maximum and minimum luma transform block size.
+ * - __u8
+ - ``max_transform_hierarchy_depth_inter``
+ - Specifies the maximum hierarchy depth for transform units of coding units coded
+ in inter prediction mode.
+ * - __u8
+ - ``max_transform_hierarchy_depth_intra``
+ - Specifies the maximum hierarchy depth for transform units of coding units coded in
+ intra prediction mode.
+ * - __u8
+ - ``pcm_sample_bit_depth_luma_minus1``
+ - This value plus 1 specifies the number of bits used to represent each of PCM sample values of the
+ luma component.
+ * - __u8
+ - ``pcm_sample_bit_depth_chroma_minus1``
+ - Specifies the number of bits used to represent each of PCM sample values of
+ the chroma components.
+ * - __u8
+ - ``log2_min_pcm_luma_coding_block_size_minus3``
+ - Plus 3 specifies the minimum size of coding blocks.
+ * - __u8
+ - ``log2_diff_max_min_pcm_luma_coding_block_size``
+ - Specifies the difference between the maximum and minimum size of coding blocks.
+ * - __u8
+ - ``num_short_term_ref_pic_sets``
+ - Specifies the number of st_ref_pic_set() syntax structures included in the SPS.
+ * - __u8
+ - ``num_long_term_ref_pics_sps``
+ - Specifies the number of candidate long-term reference pictures that are
+ specified in the SPS.
+ * - __u8
+ - ``chroma_format_idc``
+ - Specifies the chroma sampling.
+ * - __u8
+ - ``sps_max_sub_layers_minus1``
+ - This value plus 1 specifies the maximum number of temporal sub-layers.
+ * - __u64
+ - ``flags``
+ - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>`
+
+.. raw:: latex
+
+ \normalsize
+
+.. _hevc_sps_flags:
+
+``Sequence Parameter Set Flags``
+
+.. raw:: latex
+
+ \small
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_AMP_ENABLED``
+ - 0x00000004
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET``
+ - 0x00000008
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_PCM_ENABLED``
+ - 0x00000010
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED``
+ - 0x00000020
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT``
+ - 0x00000040
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED``
+ - 0x00000080
+ -
+ * - ``V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED``
+ - 0x00000100
+ -
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_HEVC_PPS (struct)``
+ Specifies the Picture Parameter Set fields (as extracted from the
+ bitstream) for the associated HEVC slice data.
+ These bitstream parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.3.3 "Picture parameter set RBSP
+ semantics" of the specification.
+
+.. c:type:: v4l2_ctrl_hevc_pps
+
+.. tabularcolumns:: |p{1.2cm}|p{8.6cm}|p{7.5cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_pps
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``pic_parameter_set_id``
+ - Identifies the PPS for reference by other syntax elements.
+ * - __u8
+ - ``num_extra_slice_header_bits``
+ - Specifies the number of extra slice header bits that are present
+ in the slice header RBSP for coded pictures referring to the PPS.
+ * - __u8
+ - ``num_ref_idx_l0_default_active_minus1``
+ - This value plus 1 specifies the inferred value of num_ref_idx_l0_active_minus1.
+ * - __u8
+ - ``num_ref_idx_l1_default_active_minus1``
+ - This value plus 1 specifies the inferred value of num_ref_idx_l1_active_minus1.
+ * - __s8
+ - ``init_qp_minus26``
+ - This value plus 26 specifies the initial value of SliceQp Y for each slice
+ referring to the PPS.
+ * - __u8
+ - ``diff_cu_qp_delta_depth``
+ - Specifies the difference between the luma coding tree block size
+ and the minimum luma coding block size of coding units that
+ convey cu_qp_delta_abs and cu_qp_delta_sign_flag.
+ * - __s8
+ - ``pps_cb_qp_offset``
+ - Specifies the offsets to the luma quantization parameter Cb.
+ * - __s8
+ - ``pps_cr_qp_offset``
+ - Specifies the offsets to the luma quantization parameter Cr.
+ * - __u8
+ - ``num_tile_columns_minus1``
+ - This value plus 1 specifies the number of tile columns partitioning the picture.
+ * - __u8
+ - ``num_tile_rows_minus1``
+ - This value plus 1 specifies the number of tile rows partitioning the picture.
+ * - __u8
+ - ``column_width_minus1[20]``
+ - This value plus 1 specifies the width of the i-th tile column in units of
+ coding tree blocks.
+ * - __u8
+ - ``row_height_minus1[22]``
+ - This value plus 1 specifies the height of the i-th tile row in units of coding
+ tree blocks.
+ * - __s8
+ - ``pps_beta_offset_div2``
+ - Specifies the default deblocking parameter offsets for beta divided by 2.
+ * - __s8
+ - ``pps_tc_offset_div2``
+ - Specifies the default deblocking parameter offsets for tC divided by 2.
+ * - __u8
+ - ``log2_parallel_merge_level_minus2``
+ - This value plus 2 specifies the value of the variable Log2ParMrgLevel.
+ * - __u8
+ - ``padding[4]``
+ - Applications and drivers must set this to zero.
+ * - __u64
+ - ``flags``
+ - See :ref:`Picture Parameter Set Flags <hevc_pps_flags>`
+
+.. _hevc_pps_flags:
+
+``Picture Parameter Set Flags``
+
+.. raw:: latex
+
+ \small
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED``
+ - 0x00000004
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT``
+ - 0x00000008
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED``
+ - 0x00000010
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED``
+ - 0x00000020
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED``
+ - 0x00000040
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT``
+ - 0x00000080
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED``
+ - 0x00000100
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED``
+ - 0x00000200
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED``
+ - 0x00000400
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_TILES_ENABLED``
+ - 0x00000800
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED``
+ - 0x00001000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED``
+ - 0x00002000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED``
+ - 0x00004000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED``
+ - 0x00008000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER``
+ - 0x00010000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT``
+ - 0x00020000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT``
+ - 0x00040000
+ -
+ * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT``
+ - 0x00080000
+ - Specifies the presence of deblocking filter control syntax elements in
+ the PPS
+ * - ``V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING``
+ - 0x00100000
+ - Specifies that tile column boundaries and likewise tile row boundaries
+ are distributed uniformly across the picture
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_HEVC_SLICE_PARAMS (struct)``
+ Specifies various slice-specific parameters, especially from the NAL unit
+ header, general slice segment header and weighted prediction parameter
+ parts of the bitstream.
+ These bitstream parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.7 "General slice segment header
+ semantics" of the specification.
+ This control is a dynamically sized 1-dimensional array,
+ V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it.
+
+.. c:type:: v4l2_ctrl_hevc_slice_params
+
+.. raw:: latex
+
+ \scriptsize
+
+.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_slice_params
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u32
+ - ``bit_size``
+ - Size (in bits) of the current slice data.
+ * - __u32
+ - ``data_byte_offset``
+ - Offset (in byte) to the video data in the current slice data.
+ * - __u32
+ - ``num_entry_point_offsets``
+ - Specifies the number of entry point offset syntax elements in the slice header.
+ When the driver supports it, the ``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS``
+ must be set.
+ * - __u8
+ - ``nal_unit_type``
+ - Specifies the coding type of the slice (B, P or I).
+ * - __u8
+ - ``nuh_temporal_id_plus1``
+ - Minus 1 specifies a temporal identifier for the NAL unit.
+ * - __u8
+ - ``slice_type``
+ -
+ (V4L2_HEVC_SLICE_TYPE_I, V4L2_HEVC_SLICE_TYPE_P or
+ V4L2_HEVC_SLICE_TYPE_B).
+ * - __u8
+ - ``colour_plane_id``
+ - Specifies the colour plane associated with the current slice.
+ * - __s32
+ - ``slice_pic_order_cnt``
+ - Specifies the picture order count.
+ * - __u8
+ - ``num_ref_idx_l0_active_minus1``
+ - This value plus 1 specifies the maximum reference index for reference picture list 0
+ that may be used to decode the slice.
+ * - __u8
+ - ``num_ref_idx_l1_active_minus1``
+ - This value plus 1 specifies the maximum reference index for reference picture list 1
+ that may be used to decode the slice.
+ * - __u8
+ - ``collocated_ref_idx``
+ - Specifies the reference index of the collocated picture used for
+ temporal motion vector prediction.
+ * - __u8
+ - ``five_minus_max_num_merge_cand``
+ - Specifies the maximum number of merging motion vector prediction
+ candidates supported in the slice subtracted from 5.
+ * - __s8
+ - ``slice_qp_delta``
+ - Specifies the initial value of QpY to be used for the coding blocks in the slice.
+ * - __s8
+ - ``slice_cb_qp_offset``
+ - Specifies a difference to be added to the value of pps_cb_qp_offset.
+ * - __s8
+ - ``slice_cr_qp_offset``
+ - Specifies a difference to be added to the value of pps_cr_qp_offset.
+ * - __s8
+ - ``slice_act_y_qp_offset``
+ - Specifies the offset to the luma of quantization parameter qP derived in section 8.6.2
+ * - __s8
+ - ``slice_act_cb_qp_offset``
+ - Specifies the offset to the cb of quantization parameter qP derived in section 8.6.2
+ * - __s8
+ - ``slice_act_cr_qp_offset``
+ - Specifies the offset to the cr of quantization parameter qP derived in section 8.6.2
+ * - __s8
+ - ``slice_beta_offset_div2``
+ - Specifies the deblocking parameter offsets for beta divided by 2.
+ * - __s8
+ - ``slice_tc_offset_div2``
+ - Specifies the deblocking parameter offsets for tC divided by 2.
+ * - __u8
+ - ``pic_struct``
+ - Indicates whether a picture should be displayed as a frame or as one or more fields.
+ * - __u32
+ - ``slice_segment_addr``
+ - Specifies the address of the first coding tree block in the slice segment.
+ * - __u8
+ - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The list of L0 reference elements as indices in the DPB.
+ * - __u8
+ - ``ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The list of L1 reference elements as indices in the DPB.
+ * - __u16
+ - ``short_term_ref_pic_set_size``
+ - Specifies the size, in bits, of the short-term reference picture set, described as st_ref_pic_set()
+ in the specification, included in the slice header or SPS (section 7.3.6.1).
+ * - __u16
+ - ``long_term_ref_pic_set_size``
+ - Specifies the size, in bits, of the long-term reference picture set include in the slice header
+ or SPS. It is the number of bits in the conditional block if(long_term_ref_pics_present_flag)
+ in section 7.3.6.1 of the specification.
+ * - __u8
+ - ``padding``
+ - Applications and drivers must set this to zero.
+ * - struct :c:type:`v4l2_hevc_pred_weight_table`
+ - ``pred_weight_table``
+ - The prediction weight coefficients for inter-picture prediction.
+ * - __u64
+ - ``flags``
+ - See :ref:`Slice Parameters Flags <hevc_slice_params_flags>`
+
+.. raw:: latex
+
+ \normalsize
+
+.. _hevc_slice_params_flags:
+
+``Slice Parameters Flags``
+
+.. raw:: latex
+
+ \scriptsize
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED``
+ - 0x00000004
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO``
+ - 0x00000008
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT``
+ - 0x00000010
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0``
+ - 0x00000020
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV``
+ - 0x00000040
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED``
+ - 0x00000080
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED``
+ - 0x00000100
+ -
+ * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT``
+ - 0x00000200
+ -
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS (integer)``
+ Specifies entry point offsets in bytes.
+ This control is a dynamically sized array. The number of entry point
+ offsets is reported by the ``elems`` field.
+ This bitstream parameter is defined according to :ref:`hevc`.
+ They are described in section 7.4.7.1 "General slice segment header
+ semantics" of the specification.
+ When multiple slices are submitted in a request, the length of
+ this array must be the sum of num_entry_point_offsets of all the
+ slices in the request.
+
+``V4L2_CID_STATELESS_HEVC_SCALING_MATRIX (struct)``
+ Specifies the HEVC scaling matrix parameters used for the scaling process
+ for transform coefficients.
+ These matrix and parameters are defined according to :ref:`hevc`.
+ They are described in section 7.4.5 "Scaling list data semantics" of
+ the specification.
+
+.. c:type:: v4l2_ctrl_hevc_scaling_matrix
+
+.. raw:: latex
+
+ \scriptsize
+
+.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_scaling_matrix
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u8
+ - ``scaling_list_4x4[6][16]``
+ - Scaling list is used for the scaling process for transform
+ coefficients. The values on each scaling list are expected
+ in raster scan order.
+ * - __u8
+ - ``scaling_list_8x8[6][64]``
+ - Scaling list is used for the scaling process for transform
+ coefficients. The values on each scaling list are expected
+ in raster scan order.
+ * - __u8
+ - ``scaling_list_16x16[6][64]``
+ - Scaling list is used for the scaling process for transform
+ coefficients. The values on each scaling list are expected
+ in raster scan order.
+ * - __u8
+ - ``scaling_list_32x32[2][64]``
+ - Scaling list is used for the scaling process for transform
+ coefficients. The values on each scaling list are expected
+ in raster scan order.
+ * - __u8
+ - ``scaling_list_dc_coef_16x16[6]``
+ - Scaling list is used for the scaling process for transform
+ coefficients. The values on each scaling list are expected
+ in raster scan order.
+ * - __u8
+ - ``scaling_list_dc_coef_32x32[2]``
+ - Scaling list is used for the scaling process for transform
+ coefficients. The values on each scaling list are expected
+ in raster scan order.
+
+.. raw:: latex
+
+ \normalsize
+
+.. c:type:: v4l2_hevc_dpb_entry
+
+.. raw:: latex
+
+ \small
+
+.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{12.1cm}|
+
+.. flat-table:: struct v4l2_hevc_dpb_entry
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __u64
+ - ``timestamp``
+ - Timestamp of the V4L2 capture buffer to use as reference, used
+ with B-coded and P-coded frames. The timestamp refers to the
+ ``timestamp`` field in struct :c:type:`v4l2_buffer`. Use the
+ :c:func:`v4l2_timeval_to_ns()` function to convert the struct
+ :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64.
+ * - __u8
+ - ``flags``
+ - Long term flag for the reference frame
+ (V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE). The flag is set as
+ described in the ITU HEVC specification chapter "8.3.2 Decoding
+ process for reference picture set".
+ * - __u8
+ - ``field_pic``
+ - Whether the reference is a field picture or a frame.
+ See :ref:`HEVC dpb field pic Flags <hevc_dpb_field_pic_flags>`
+ * - __s32
+ - ``pic_order_cnt_val``
+ - The picture order count of the current picture.
+ * - __u8
+ - ``padding[2]``
+ - Applications and drivers must set this to zero.
+
+.. raw:: latex
+
+ \normalsize
+
+.. _hevc_dpb_field_pic_flags:
+
+``HEVC dpb field pic Flags``
+
+.. raw:: latex
+
+ \scriptsize
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME``
+ - 0
+ - (progressive) Frame
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_FIELD``
+ - 1
+ - Top field
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_FIELD``
+ - 2
+ - Bottom field
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM``
+ - 3
+ - Top field, bottom field, in that order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP``
+ - 4
+ - Bottom field, top field, in that order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_BOTTOM_TOP``
+ - 5
+ - Top field, bottom field, top field repeated, in that order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM``
+ - 6
+ - Bottom field, top field, bottom field repeated, in that order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_DOUBLING``
+ - 7
+ - Frame doubling
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_FRAME_TRIPLING``
+ - 8
+ - Frame tripling
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_PREVIOUS_BOTTOM``
+ - 9
+ - Top field paired with previous bottom field in output order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_PREVIOUS_TOP``
+ - 10
+ - Bottom field paired with previous top field in output order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_TOP_PAIRED_NEXT_BOTTOM``
+ - 11
+ - Top field paired with next bottom field in output order
+ * - ``V4L2_HEVC_SEI_PIC_STRUCT_BOTTOM_PAIRED_NEXT_TOP``
+ - 12
+ - Bottom field paired with next top field in output order
+
+.. c:type:: v4l2_hevc_pred_weight_table
+
+.. raw:: latex
+
+ \footnotesize
+
+.. tabularcolumns:: |p{0.8cm}|p{10.6cm}|p{5.9cm}|
+
+.. flat-table:: struct v4l2_hevc_pred_weight_table
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __s8
+ - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The difference of the weighting factor applied to the luma
+ prediction value for list 0.
+ * - __s8
+ - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The additive offset applied to the luma prediction value for list 0.
+ * - __s8
+ - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ - The difference of the weighting factor applied to the chroma
+ prediction value for list 0.
+ * - __s8
+ - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ - The difference of the additive offset applied to the chroma
+ prediction values for list 0.
+ * - __s8
+ - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The difference of the weighting factor applied to the luma
+ prediction value for list 1.
+ * - __s8
+ - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The additive offset applied to the luma prediction value for list 1.
+ * - __s8
+ - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ - The difference of the weighting factor applied to the chroma
+ prediction value for list 1.
+ * - __s8
+ - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
+ - The difference of the additive offset applied to the chroma
+ prediction values for list 1.
+ * - __u8
+ - ``luma_log2_weight_denom``
+ - The base 2 logarithm of the denominator for all luma weighting
+ factors.
+ * - __s8
+ - ``delta_chroma_log2_weight_denom``
+ - The difference of the base 2 logarithm of the denominator for
+ all chroma weighting factors.
+ * - __u8
+ - ``padding[6]``
+ - Applications and drivers must set this to zero.
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_HEVC_DECODE_MODE (enum)``
+ Specifies the decoding mode to use. Currently exposes slice-based and
+ frame-based decoding but new modes might be added later on.
+ This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
+ pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
+ are required to set this control in order to specify the decoding mode
+ that is expected for the buffer.
+ Drivers may expose a single or multiple decoding modes, depending
+ on what they can support.
+
+.. c:type:: v4l2_stateless_hevc_decode_mode
+
+.. raw:: latex
+
+ \small
+
+.. tabularcolumns:: |p{9.4cm}|p{0.6cm}|p{7.3cm}|
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_STATELESS_HEVC_DECODE_MODE_SLICE_BASED``
+ - 0
+ - Decoding is done at the slice granularity.
+ The OUTPUT buffer must contain a single slice.
+ * - ``V4L2_STATELESS_HEVC_DECODE_MODE_FRAME_BASED``
+ - 1
+ - Decoding is done at the frame granularity.
+ The OUTPUT buffer must contain all slices needed to decode the
+ frame.
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_STATELESS_HEVC_START_CODE (enum)``
+ Specifies the HEVC slice start code expected for each slice.
+ This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
+ pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
+ are required to set this control in order to specify the start code
+ that is expected for the buffer.
+ Drivers may expose a single or multiple start codes, depending
+ on what they can support.
+
+.. c:type:: v4l2_stateless_hevc_start_code
+
+.. tabularcolumns:: |p{9.2cm}|p{0.6cm}|p{7.5cm}|
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_STATELESS_HEVC_START_CODE_NONE``
+ - 0
+ - Selecting this value specifies that HEVC slices are passed
+ to the driver without any start code. The bitstream data should be
+ according to :ref:`hevc` 7.3.1.1 General NAL unit syntax, hence
+ contains emulation prevention bytes when required.
+ * - ``V4L2_STATELESS_HEVC_START_CODE_ANNEX_B``
+ - 1
+ - Selecting this value specifies that HEVC slices are expected
+ to be prefixed by Annex B start codes. According to :ref:`hevc`
+ valid start codes can be 3-bytes 0x000001 or 4-bytes 0x00000001.
+
+.. raw:: latex
+
+ \normalsize
+
+``V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (integer)``
+ Specifies a priority identifier for the NAL unit, which will be applied to
+ the base layer. By default this value is set to 0 for the base layer,
+ and the next layer will have the priority ID assigned as 1, 2, 3 and so on.
+ The video encoder can't decide the priority id to be applied to a layer,
+ so this has to come from client.
+ This is applicable to H264 and valid Range is from 0 to 63.
+ Source Rec. ITU-T H.264 (06/2019); G.7.4.1.1, G.8.8.1.
+
+``V4L2_CID_MPEG_VIDEO_LTR_COUNT (integer)``
+ Specifies the maximum number of Long Term Reference (LTR) frames at any
+ given time that the encoder can keep.
+ This is applicable to the H264 and HEVC encoders.
+
+``V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (integer)``
+ After setting this control the frame that will be queued next
+ will be marked as a Long Term Reference (LTR) frame
+ and given this LTR index which ranges from 0 to LTR_COUNT-1.
+ This is applicable to the H264 and HEVC encoders.
+ Source Rec. ITU-T H.264 (06/2019); Table 7.9
+
+``V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (bitmask)``
+ Specifies the Long Term Reference (LTR) frame(s) to be used for
+ encoding the next frame queued after setting this control.
+ This provides a bitmask which consists of bits [0, LTR_COUNT-1].
+ This is applicable to the H264 and HEVC encoders.
+
+``V4L2_CID_STATELESS_HEVC_DECODE_PARAMS (struct)``
+ Specifies various decode parameters, especially the references picture order
+ count (POC) for all the lists (short, long, before, current, after) and the
+ number of entries for each of them.
+ These parameters are defined according to :ref:`hevc`.
+ They are described in section 8.3 "Slice decoding process" of the
+ specification.
+
+.. c:type:: v4l2_ctrl_hevc_decode_params
+
+.. cssclass:: longtable
+
+.. flat-table:: struct v4l2_ctrl_hevc_decode_params
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - __s32
+ - ``pic_order_cnt_val``
+ - PicOrderCntVal as described in section 8.3.1 "Decoding process
+ for picture order count" of the specification.
+ * - __u16
+ - ``short_term_ref_pic_set_size``
+ - Specifies the size, in bits, of the short-term reference picture set, of the first slice
+ described as st_ref_pic_set() in the specification, included in the slice header
+ or SPS (section 7.3.6.1).
+ * - __u16
+ - ``long_term_ref_pic_set_size``
+ - Specifies the size, in bits, of the long-term reference picture set, of the first slice
+ included in the slice header or SPS. It is the number of bits in the conditional block
+ if(long_term_ref_pics_present_flag) in section 7.3.6.1 of the specification.
+ * - __u8
+ - ``num_active_dpb_entries``
+ - The number of entries in ``dpb``.
+ * - __u8
+ - ``num_poc_st_curr_before``
+ - The number of reference pictures in the short-term set that come before
+ the current frame.
+ * - __u8
+ - ``num_poc_st_curr_after``
+ - The number of reference pictures in the short-term set that come after
+ the current frame.
+ * - __u8
+ - ``num_poc_lt_curr``
+ - The number of reference pictures in the long-term set.
+ * - __u8
+ - ``poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - PocStCurrBefore as described in section 8.3.2 "Decoding process for reference
+ picture set": provides the index of the short term before references in DPB array.
+ * - __u8
+ - ``poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - PocStCurrAfter as described in section 8.3.2 "Decoding process for reference
+ picture set": provides the index of the short term after references in DPB array.
+ * - __u8
+ - ``poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - PocLtCurr as described in section 8.3.2 "Decoding process for reference
+ picture set": provides the index of the long term references in DPB array.
+ * - struct :c:type:`v4l2_hevc_dpb_entry`
+ - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
+ - The decoded picture buffer, for meta-data about reference frames.
+ * - __u64
+ - ``flags``
+ - See :ref:`Decode Parameters Flags <hevc_decode_params_flags>`
+
+.. _hevc_decode_params_flags:
+
+``Decode Parameters Flags``
+
+.. cssclass:: longtable
+
+.. flat-table::
+ :header-rows: 0
+ :stub-columns: 0
+ :widths: 1 1 2
+
+ * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC``
+ - 0x00000001
+ -
+ * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC``
+ - 0x00000002
+ -
+ * - ``V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR``
+ - 0x00000004
+ -
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
index 6183f43f4d73..2a165ae063fb 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst
@@ -2658,783 +2658,3 @@ enum v4l2_mpeg_video_hevc_size_of_length_field -
Indicates whether to generate SPS and PPS at every IDR. Setting it to 0
disables generating SPS and PPS at every IDR. Setting it to one enables
generating SPS and PPS at every IDR.
-
-.. _v4l2-mpeg-hevc:
-
-``V4L2_CID_MPEG_VIDEO_HEVC_SPS (struct)``
- Specifies the Sequence Parameter Set fields (as extracted from the
- bitstream) for the associated HEVC slice data.
- These bitstream parameters are defined according to :ref:`hevc`.
- They are described in section 7.4.3.2 "Sequence parameter set RBSP
- semantics" of the specification.
-
-.. c:type:: v4l2_ctrl_hevc_sps
-
-.. raw:: latex
-
- \small
-
-.. tabularcolumns:: |p{1.2cm}|p{9.2cm}|p{6.9cm}|
-
-.. cssclass:: longtable
-
-.. flat-table:: struct v4l2_ctrl_hevc_sps
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u16
- - ``pic_width_in_luma_samples``
- -
- * - __u16
- - ``pic_height_in_luma_samples``
- -
- * - __u8
- - ``bit_depth_luma_minus8``
- -
- * - __u8
- - ``bit_depth_chroma_minus8``
- -
- * - __u8
- - ``log2_max_pic_order_cnt_lsb_minus4``
- -
- * - __u8
- - ``sps_max_dec_pic_buffering_minus1``
- -
- * - __u8
- - ``sps_max_num_reorder_pics``
- -
- * - __u8
- - ``sps_max_latency_increase_plus1``
- -
- * - __u8
- - ``log2_min_luma_coding_block_size_minus3``
- -
- * - __u8
- - ``log2_diff_max_min_luma_coding_block_size``
- -
- * - __u8
- - ``log2_min_luma_transform_block_size_minus2``
- -
- * - __u8
- - ``log2_diff_max_min_luma_transform_block_size``
- -
- * - __u8
- - ``max_transform_hierarchy_depth_inter``
- -
- * - __u8
- - ``max_transform_hierarchy_depth_intra``
- -
- * - __u8
- - ``pcm_sample_bit_depth_luma_minus1``
- -
- * - __u8
- - ``pcm_sample_bit_depth_chroma_minus1``
- -
- * - __u8
- - ``log2_min_pcm_luma_coding_block_size_minus3``
- -
- * - __u8
- - ``log2_diff_max_min_pcm_luma_coding_block_size``
- -
- * - __u8
- - ``num_short_term_ref_pic_sets``
- -
- * - __u8
- - ``num_long_term_ref_pics_sps``
- -
- * - __u8
- - ``chroma_format_idc``
- -
- * - __u8
- - ``sps_max_sub_layers_minus1``
- -
- * - __u64
- - ``flags``
- - See :ref:`Sequence Parameter Set Flags <hevc_sps_flags>`
-
-.. raw:: latex
-
- \normalsize
-
-.. _hevc_sps_flags:
-
-``Sequence Parameter Set Flags``
-
-.. raw:: latex
-
- \small
-
-.. cssclass:: longtable
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_HEVC_SPS_FLAG_SEPARATE_COLOUR_PLANE``
- - 0x00000001
- -
- * - ``V4L2_HEVC_SPS_FLAG_SCALING_LIST_ENABLED``
- - 0x00000002
- -
- * - ``V4L2_HEVC_SPS_FLAG_AMP_ENABLED``
- - 0x00000004
- -
- * - ``V4L2_HEVC_SPS_FLAG_SAMPLE_ADAPTIVE_OFFSET``
- - 0x00000008
- -
- * - ``V4L2_HEVC_SPS_FLAG_PCM_ENABLED``
- - 0x00000010
- -
- * - ``V4L2_HEVC_SPS_FLAG_PCM_LOOP_FILTER_DISABLED``
- - 0x00000020
- -
- * - ``V4L2_HEVC_SPS_FLAG_LONG_TERM_REF_PICS_PRESENT``
- - 0x00000040
- -
- * - ``V4L2_HEVC_SPS_FLAG_SPS_TEMPORAL_MVP_ENABLED``
- - 0x00000080
- -
- * - ``V4L2_HEVC_SPS_FLAG_STRONG_INTRA_SMOOTHING_ENABLED``
- - 0x00000100
- -
-
-.. raw:: latex
-
- \normalsize
-
-``V4L2_CID_MPEG_VIDEO_HEVC_PPS (struct)``
- Specifies the Picture Parameter Set fields (as extracted from the
- bitstream) for the associated HEVC slice data.
- These bitstream parameters are defined according to :ref:`hevc`.
- They are described in section 7.4.3.3 "Picture parameter set RBSP
- semantics" of the specification.
-
-.. c:type:: v4l2_ctrl_hevc_pps
-
-.. tabularcolumns:: |p{1.2cm}|p{8.6cm}|p{7.5cm}|
-
-.. cssclass:: longtable
-
-.. flat-table:: struct v4l2_ctrl_hevc_pps
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u8
- - ``num_extra_slice_header_bits``
- -
- * - __u8
- - ``num_ref_idx_l0_default_active_minus1``
- - Specifies the inferred value of num_ref_idx_l0_active_minus1
- * - __u8
- - ``num_ref_idx_l1_default_active_minus1``
- - Specifies the inferred value of num_ref_idx_l1_active_minus1
- * - __s8
- - ``init_qp_minus26``
- -
- * - __u8
- - ``diff_cu_qp_delta_depth``
- -
- * - __s8
- - ``pps_cb_qp_offset``
- -
- * - __s8
- - ``pps_cr_qp_offset``
- -
- * - __u8
- - ``num_tile_columns_minus1``
- -
- * - __u8
- - ``num_tile_rows_minus1``
- -
- * - __u8
- - ``column_width_minus1[20]``
- -
- * - __u8
- - ``row_height_minus1[22]``
- -
- * - __s8
- - ``pps_beta_offset_div2``
- -
- * - __s8
- - ``pps_tc_offset_div2``
- -
- * - __u8
- - ``log2_parallel_merge_level_minus2``
- -
- * - __u8
- - ``padding[4]``
- - Applications and drivers must set this to zero.
- * - __u64
- - ``flags``
- - See :ref:`Picture Parameter Set Flags <hevc_pps_flags>`
-
-.. _hevc_pps_flags:
-
-``Picture Parameter Set Flags``
-
-.. raw:: latex
-
- \small
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_HEVC_PPS_FLAG_DEPENDENT_SLICE_SEGMENT_ENABLED``
- - 0x00000001
- -
- * - ``V4L2_HEVC_PPS_FLAG_OUTPUT_FLAG_PRESENT``
- - 0x00000002
- -
- * - ``V4L2_HEVC_PPS_FLAG_SIGN_DATA_HIDING_ENABLED``
- - 0x00000004
- -
- * - ``V4L2_HEVC_PPS_FLAG_CABAC_INIT_PRESENT``
- - 0x00000008
- -
- * - ``V4L2_HEVC_PPS_FLAG_CONSTRAINED_INTRA_PRED``
- - 0x00000010
- -
- * - ``V4L2_HEVC_PPS_FLAG_TRANSFORM_SKIP_ENABLED``
- - 0x00000020
- -
- * - ``V4L2_HEVC_PPS_FLAG_CU_QP_DELTA_ENABLED``
- - 0x00000040
- -
- * - ``V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT``
- - 0x00000080
- -
- * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_PRED``
- - 0x00000100
- -
- * - ``V4L2_HEVC_PPS_FLAG_WEIGHTED_BIPRED``
- - 0x00000200
- -
- * - ``V4L2_HEVC_PPS_FLAG_TRANSQUANT_BYPASS_ENABLED``
- - 0x00000400
- -
- * - ``V4L2_HEVC_PPS_FLAG_TILES_ENABLED``
- - 0x00000800
- -
- * - ``V4L2_HEVC_PPS_FLAG_ENTROPY_CODING_SYNC_ENABLED``
- - 0x00001000
- -
- * - ``V4L2_HEVC_PPS_FLAG_LOOP_FILTER_ACROSS_TILES_ENABLED``
- - 0x00002000
- -
- * - ``V4L2_HEVC_PPS_FLAG_PPS_LOOP_FILTER_ACROSS_SLICES_ENABLED``
- - 0x00004000
- -
- * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_OVERRIDE_ENABLED``
- - 0x00008000
- -
- * - ``V4L2_HEVC_PPS_FLAG_PPS_DISABLE_DEBLOCKING_FILTER``
- - 0x00010000
- -
- * - ``V4L2_HEVC_PPS_FLAG_LISTS_MODIFICATION_PRESENT``
- - 0x00020000
- -
- * - ``V4L2_HEVC_PPS_FLAG_SLICE_SEGMENT_HEADER_EXTENSION_PRESENT``
- - 0x00040000
- -
- * - ``V4L2_HEVC_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT``
- - 0x00080000
- - Specifies the presence of deblocking filter control syntax elements in
- the PPS
- * - ``V4L2_HEVC_PPS_FLAG_UNIFORM_SPACING``
- - 0x00100000
- - Specifies that tile column boundaries and likewise tile row boundaries
- are distributed uniformly across the picture
-
-.. raw:: latex
-
- \normalsize
-
-``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS (struct)``
- Specifies various slice-specific parameters, especially from the NAL unit
- header, general slice segment header and weighted prediction parameter
- parts of the bitstream.
- These bitstream parameters are defined according to :ref:`hevc`.
- They are described in section 7.4.7 "General slice segment header
- semantics" of the specification.
-
-.. c:type:: v4l2_ctrl_hevc_slice_params
-
-.. raw:: latex
-
- \scriptsize
-
-.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
-
-.. cssclass:: longtable
-
-.. flat-table:: struct v4l2_ctrl_hevc_slice_params
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u32
- - ``bit_size``
- - Size (in bits) of the current slice data.
- * - __u32
- - ``data_bit_offset``
- - Offset (in bits) to the video data in the current slice data.
- * - __u8
- - ``nal_unit_type``
- -
- * - __u8
- - ``nuh_temporal_id_plus1``
- -
- * - __u8
- - ``slice_type``
- -
- (V4L2_HEVC_SLICE_TYPE_I, V4L2_HEVC_SLICE_TYPE_P or
- V4L2_HEVC_SLICE_TYPE_B).
- * - __u8
- - ``colour_plane_id``
- -
- * - __u16
- - ``slice_pic_order_cnt``
- -
- * - __u8
- - ``num_ref_idx_l0_active_minus1``
- -
- * - __u8
- - ``num_ref_idx_l1_active_minus1``
- -
- * - __u8
- - ``collocated_ref_idx``
- -
- * - __u8
- - ``five_minus_max_num_merge_cand``
- -
- * - __s8
- - ``slice_qp_delta``
- -
- * - __s8
- - ``slice_cb_qp_offset``
- -
- * - __s8
- - ``slice_cr_qp_offset``
- -
- * - __s8
- - ``slice_act_y_qp_offset``
- -
- * - __s8
- - ``slice_act_cb_qp_offset``
- -
- * - __s8
- - ``slice_act_cr_qp_offset``
- -
- * - __s8
- - ``slice_beta_offset_div2``
- -
- * - __s8
- - ``slice_tc_offset_div2``
- -
- * - __u8
- - ``pic_struct``
- -
- * - __u32
- - ``slice_segment_addr``
- -
- * - __u8
- - ``ref_idx_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - The list of L0 reference elements as indices in the DPB.
- * - __u8
- - ``ref_idx_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - The list of L1 reference elements as indices in the DPB.
- * - __u8
- - ``padding``
- - Applications and drivers must set this to zero.
- * - struct :c:type:`v4l2_hevc_pred_weight_table`
- - ``pred_weight_table``
- - The prediction weight coefficients for inter-picture prediction.
- * - __u64
- - ``flags``
- - See :ref:`Slice Parameters Flags <hevc_slice_params_flags>`
-
-.. raw:: latex
-
- \normalsize
-
-.. _hevc_slice_params_flags:
-
-``Slice Parameters Flags``
-
-.. raw:: latex
-
- \scriptsize
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_LUMA``
- - 0x00000001
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_SAO_CHROMA``
- - 0x00000002
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_TEMPORAL_MVP_ENABLED``
- - 0x00000004
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_MVD_L1_ZERO``
- - 0x00000008
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_CABAC_INIT``
- - 0x00000010
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_COLLOCATED_FROM_L0``
- - 0x00000020
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_USE_INTEGER_MV``
- - 0x00000040
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_DEBLOCKING_FILTER_DISABLED``
- - 0x00000080
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_SLICE_LOOP_FILTER_ACROSS_SLICES_ENABLED``
- - 0x00000100
- -
- * - ``V4L2_HEVC_SLICE_PARAMS_FLAG_DEPENDENT_SLICE_SEGMENT``
- - 0x00000200
- -
-
-.. raw:: latex
-
- \normalsize
-
-``V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX (struct)``
- Specifies the HEVC scaling matrix parameters used for the scaling process
- for transform coefficients.
- These matrix and parameters are defined according to :ref:`hevc`.
- They are described in section 7.4.5 "Scaling list data semantics" of
- the specification.
-
-.. c:type:: v4l2_ctrl_hevc_scaling_matrix
-
-.. raw:: latex
-
- \scriptsize
-
-.. tabularcolumns:: |p{5.4cm}|p{6.8cm}|p{5.1cm}|
-
-.. cssclass:: longtable
-
-.. flat-table:: struct v4l2_ctrl_hevc_scaling_matrix
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u8
- - ``scaling_list_4x4[6][16]``
- - Scaling list is used for the scaling process for transform
- coefficients. The values on each scaling list are expected
- in raster scan order.
- * - __u8
- - ``scaling_list_8x8[6][64]``
- - Scaling list is used for the scaling process for transform
- coefficients. The values on each scaling list are expected
- in raster scan order.
- * - __u8
- - ``scaling_list_16x16[6][64]``
- - Scaling list is used for the scaling process for transform
- coefficients. The values on each scaling list are expected
- in raster scan order.
- * - __u8
- - ``scaling_list_32x32[2][64]``
- - Scaling list is used for the scaling process for transform
- coefficients. The values on each scaling list are expected
- in raster scan order.
- * - __u8
- - ``scaling_list_dc_coef_16x16[6]``
- - Scaling list is used for the scaling process for transform
- coefficients. The values on each scaling list are expected
- in raster scan order.
- * - __u8
- - ``scaling_list_dc_coef_32x32[2]``
- - Scaling list is used for the scaling process for transform
- coefficients. The values on each scaling list are expected
- in raster scan order.
-
-.. raw:: latex
-
- \normalsize
-
-.. c:type:: v4l2_hevc_dpb_entry
-
-.. raw:: latex
-
- \small
-
-.. tabularcolumns:: |p{1.0cm}|p{4.2cm}|p{12.1cm}|
-
-.. flat-table:: struct v4l2_hevc_dpb_entry
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u64
- - ``timestamp``
- - Timestamp of the V4L2 capture buffer to use as reference, used
- with B-coded and P-coded frames. The timestamp refers to the
- ``timestamp`` field in struct :c:type:`v4l2_buffer`. Use the
- :c:func:`v4l2_timeval_to_ns()` function to convert the struct
- :c:type:`timeval` in struct :c:type:`v4l2_buffer` to a __u64.
- * - __u8
- - ``flags``
- - Long term flag for the reference frame
- (V4L2_HEVC_DPB_ENTRY_LONG_TERM_REFERENCE). The flag is set as
- described in the ITU HEVC specification chapter "8.3.2 Decoding
- process for reference picture set".
- * - __u8
- - ``field_pic``
- - Whether the reference is a field picture or a frame.
- * - __u16
- - ``pic_order_cnt[2]``
- - The picture order count of the reference. Only the first element of the
- array is used for frame pictures, while the first element identifies the
- top field and the second the bottom field in field-coded pictures.
- * - __u8
- - ``padding[2]``
- - Applications and drivers must set this to zero.
-
-.. raw:: latex
-
- \normalsize
-
-.. c:type:: v4l2_hevc_pred_weight_table
-
-.. raw:: latex
-
- \footnotesize
-
-.. tabularcolumns:: |p{0.8cm}|p{10.6cm}|p{5.9cm}|
-
-.. flat-table:: struct v4l2_hevc_pred_weight_table
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __u8
- - ``luma_log2_weight_denom``
- -
- * - __s8
- - ``delta_chroma_log2_weight_denom``
- -
- * - __s8
- - ``delta_luma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- -
- * - __s8
- - ``luma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- -
- * - __s8
- - ``delta_chroma_weight_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
- -
- * - __s8
- - ``chroma_offset_l0[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
- -
- * - __s8
- - ``delta_luma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- -
- * - __s8
- - ``luma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- -
- * - __s8
- - ``delta_chroma_weight_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
- -
- * - __s8
- - ``chroma_offset_l1[V4L2_HEVC_DPB_ENTRIES_NUM_MAX][2]``
- -
- * - __u8
- - ``padding[6]``
- - Applications and drivers must set this to zero.
-
-.. raw:: latex
-
- \normalsize
-
-``V4L2_CID_MPEG_VIDEO_HEVC_DECODE_MODE (enum)``
- Specifies the decoding mode to use. Currently exposes slice-based and
- frame-based decoding but new modes might be added later on.
- This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
- pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
- are required to set this control in order to specify the decoding mode
- that is expected for the buffer.
- Drivers may expose a single or multiple decoding modes, depending
- on what they can support.
-
- .. note::
-
- This menu control is not yet part of the public kernel API and
- it is expected to change.
-
-.. c:type:: v4l2_mpeg_video_hevc_decode_mode
-
-.. raw:: latex
-
- \small
-
-.. tabularcolumns:: |p{9.4cm}|p{0.6cm}|p{7.3cm}|
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_SLICE_BASED``
- - 0
- - Decoding is done at the slice granularity.
- The OUTPUT buffer must contain a single slice.
- * - ``V4L2_MPEG_VIDEO_HEVC_DECODE_MODE_FRAME_BASED``
- - 1
- - Decoding is done at the frame granularity.
- The OUTPUT buffer must contain all slices needed to decode the
- frame. The OUTPUT buffer must also contain both fields.
-
-.. raw:: latex
-
- \normalsize
-
-``V4L2_CID_MPEG_VIDEO_HEVC_START_CODE (enum)``
- Specifies the HEVC slice start code expected for each slice.
- This control is used as a modifier for V4L2_PIX_FMT_HEVC_SLICE
- pixel format. Applications that support V4L2_PIX_FMT_HEVC_SLICE
- are required to set this control in order to specify the start code
- that is expected for the buffer.
- Drivers may expose a single or multiple start codes, depending
- on what they can support.
-
- .. note::
-
- This menu control is not yet part of the public kernel API and
- it is expected to change.
-
-.. c:type:: v4l2_mpeg_video_hevc_start_code
-
-.. tabularcolumns:: |p{9.2cm}|p{0.6cm}|p{7.5cm}|
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_MPEG_VIDEO_HEVC_START_CODE_NONE``
- - 0
- - Selecting this value specifies that HEVC slices are passed
- to the driver without any start code. The bitstream data should be
- according to :ref:`hevc` 7.3.1.1 General NAL unit syntax, hence
- contains emulation prevention bytes when required.
- * - ``V4L2_MPEG_VIDEO_HEVC_START_CODE_ANNEX_B``
- - 1
- - Selecting this value specifies that HEVC slices are expected
- to be prefixed by Annex B start codes. According to :ref:`hevc`
- valid start codes can be 3-bytes 0x000001 or 4-bytes 0x00000001.
-
-``V4L2_CID_MPEG_VIDEO_BASELAYER_PRIORITY_ID (integer)``
- Specifies a priority identifier for the NAL unit, which will be applied to
- the base layer. By default this value is set to 0 for the base layer,
- and the next layer will have the priority ID assigned as 1, 2, 3 and so on.
- The video encoder can't decide the priority id to be applied to a layer,
- so this has to come from client.
- This is applicable to H264 and valid Range is from 0 to 63.
- Source Rec. ITU-T H.264 (06/2019); G.7.4.1.1, G.8.8.1.
-
-``V4L2_CID_MPEG_VIDEO_LTR_COUNT (integer)``
- Specifies the maximum number of Long Term Reference (LTR) frames at any
- given time that the encoder can keep.
- This is applicable to the H264 and HEVC encoders.
-
-``V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (integer)``
- After setting this control the frame that will be queued next
- will be marked as a Long Term Reference (LTR) frame
- and given this LTR index which ranges from 0 to LTR_COUNT-1.
- This is applicable to the H264 and HEVC encoders.
- Source Rec. ITU-T H.264 (06/2019); Table 7.9
-
-``V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (bitmask)``
- Specifies the Long Term Reference (LTR) frame(s) to be used for
- encoding the next frame queued after setting this control.
- This provides a bitmask which consists of bits [0, LTR_COUNT-1].
- This is applicable to the H264 and HEVC encoders.
-
-``V4L2_CID_MPEG_VIDEO_HEVC_DECODE_PARAMS (struct)``
- Specifies various decode parameters, especially the references picture order
- count (POC) for all the lists (short, long, before, current, after) and the
- number of entries for each of them.
- These parameters are defined according to :ref:`hevc`.
- They are described in section 8.3 "Slice decoding process" of the
- specification.
-
-.. c:type:: v4l2_ctrl_hevc_decode_params
-
-.. cssclass:: longtable
-
-.. flat-table:: struct v4l2_ctrl_hevc_decode_params
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - __s32
- - ``pic_order_cnt_val``
- - PicOrderCntVal as described in section 8.3.1 "Decoding process
- for picture order count" of the specification.
- * - __u8
- - ``num_active_dpb_entries``
- - The number of entries in ``dpb``.
- * - struct :c:type:`v4l2_hevc_dpb_entry`
- - ``dpb[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - The decoded picture buffer, for meta-data about reference frames.
- * - __u8
- - ``num_poc_st_curr_before``
- - The number of reference pictures in the short-term set that come before
- the current frame.
- * - __u8
- - ``num_poc_st_curr_after``
- - The number of reference pictures in the short-term set that come after
- the current frame.
- * - __u8
- - ``num_poc_lt_curr``
- - The number of reference pictures in the long-term set.
- * - __u8
- - ``poc_st_curr_before[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - PocStCurrBefore as described in section 8.3.2 "Decoding process for reference
- picture set": provides the index of the short term before references in DPB array.
- * - __u8
- - ``poc_st_curr_after[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - PocStCurrAfter as described in section 8.3.2 "Decoding process for reference
- picture set": provides the index of the short term after references in DPB array.
- * - __u8
- - ``poc_lt_curr[V4L2_HEVC_DPB_ENTRIES_NUM_MAX]``
- - PocLtCurr as described in section 8.3.2 "Decoding process for reference
- picture set": provides the index of the long term references in DPB array.
- * - __u64
- - ``flags``
- - See :ref:`Decode Parameters Flags <hevc_decode_params_flags>`
-
-.. _hevc_decode_params_flags:
-
-``Decode Parameters Flags``
-
-.. cssclass:: longtable
-
-.. flat-table::
- :header-rows: 0
- :stub-columns: 0
- :widths: 1 1 2
-
- * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC``
- - 0x00000001
- -
- * - ``V4L2_HEVC_DECODE_PARAM_FLAG_IDR_PIC``
- - 0x00000002
- -
- * - ``V4L2_HEVC_DECODE_PARAM_FLAG_NO_OUTPUT_OF_PRIOR``
- - 0x00000004
- -
diff --git a/Documentation/userspace-api/media/v4l/hist-v4l2.rst b/Documentation/userspace-api/media/v4l/hist-v4l2.rst
index 28a2750d5c8c..dbc04374dc22 100644
--- a/Documentation/userspace-api/media/v4l/hist-v4l2.rst
+++ b/Documentation/userspace-api/media/v4l/hist-v4l2.rst
@@ -316,7 +316,7 @@ This unnamed version was finally merged into Linux 2.5.46.
There are new fields to identify the driver, a new RDS device
function ``V4L2_CAP_RDS_CAPTURE``, the ``V4L2_CAP_AUDIO`` flag
indicates if the device has any audio connectors, another I/O
- capability ``V4L2_CAP_ASYNCIO`` can be flagged. In response to these
+ capability V4L2_CAP_ASYNCIO can be flagged. In response to these
changes the ``type`` field became a bit set and was merged into the
``flags`` field. ``V4L2_FLAG_TUNER`` was renamed to
``V4L2_CAP_TUNER``, ``V4L2_CAP_VIDEO_OVERLAY`` replaced
diff --git a/Documentation/userspace-api/media/v4l/io.rst b/Documentation/userspace-api/media/v4l/io.rst
index ce0cece6f35f..4b1964df9d73 100644
--- a/Documentation/userspace-api/media/v4l/io.rst
+++ b/Documentation/userspace-api/media/v4l/io.rst
@@ -17,8 +17,7 @@ read or write will fail at any time.
Other methods must be negotiated. To select the streaming I/O method
with memory mapped or user buffers applications call the
-:ref:`VIDIOC_REQBUFS` ioctl. The asynchronous I/O
-method is not defined yet.
+:ref:`VIDIOC_REQBUFS` ioctl.
Video overlay can be considered another I/O method, although the
application does not directly receive the image data. It is selected by
@@ -46,6 +45,5 @@ The following sections describe the various I/O methods in more detail.
mmap
userp
dmabuf
- async
buffer
field-order
diff --git a/Documentation/userspace-api/media/v4l/mmap.rst b/Documentation/userspace-api/media/v4l/mmap.rst
index 16b1e13b029f..a5672573dd6f 100644
--- a/Documentation/userspace-api/media/v4l/mmap.rst
+++ b/Documentation/userspace-api/media/v4l/mmap.rst
@@ -232,7 +232,7 @@ In the write loop, when the application runs out of free buffers, it
must wait until an empty buffer can be dequeued and reused.
To enqueue and dequeue a buffer applications use the
-:ref:`VIVIOC_QBUF <VIDIOC_QBUF>` and :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
+:ref:`VIDIOC_QBUF <VIDIOC_QBUF>` and :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
ioctl. The status of a buffer being mapped, enqueued, full or empty can
be determined at any time using the :ref:`VIDIOC_QUERYBUF` ioctl. Two
methods exist to suspend execution of the application until one or more
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
index 967fc803ef94..506dd3c98884 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst
@@ -212,14 +212,9 @@ Compressed Formats
``V4L2_CID_MPEG_VIDEO_HEVC_SPS``,
``V4L2_CID_MPEG_VIDEO_HEVC_PPS``, and
``V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS``.
- See the :ref:`associated Codec Control IDs <v4l2-mpeg-hevc>`.
+ See the :ref:`associated Codec Control IDs <v4l2-codec-stateless-hevc>`.
Buffers associated with this pixel format must contain the appropriate
number of macroblocks to decode a full corresponding frame.
-
- .. note::
-
- This format is not yet part of the public kernel API and it
- is expected to change.
* .. _V4L2-PIX-FMT-FWHT:
- ``V4L2_PIX_FMT_FWHT``
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
index 65520c3af7cf..bf283a1b5581 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-packed-yuv.rst
@@ -220,6 +220,26 @@ the second byte and Y'\ :sub:`7-0` in the third byte.
- Y'\ :sub:`7-0`
- X\ :sub:`7-0`
+ * .. _V4L2-PIX-FMT-YUVA32:
+
+ - ``V4L2_PIX_FMT_YUVA32``
+ - 'YUVA'
+
+ - Y'\ :sub:`7-0`
+ - Cb\ :sub:`7-0`
+ - Cr\ :sub:`7-0`
+ - A\ :sub:`7-0`
+
+ * .. _V4L2-PIX-FMT-YUVX32:
+
+ - ``V4L2_PIX_FMT_YUVX32``
+ - 'YUVX'
+
+ - Y'\ :sub:`7-0`
+ - Cb\ :sub:`7-0`
+ - Cr\ :sub:`7-0`
+ - X\ :sub:`7-0`
+
* .. _V4L2-PIX-FMT-YUV24:
- ``V4L2_PIX_FMT_YUV24``
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
index 8dff5906639b..10b1feeb0b57 100644
--- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
+++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
@@ -109,6 +109,20 @@ All components are stored with the same number of bits per component.
- Cb, Cr
- No
- 16x16 tiles
+ * - V4L2_PIX_FMT_P010
+ - 'P010'
+ - 10
+ - 4:2:0
+ - Cb, Cr
+ - Yes
+ - Linear
+ * - V4L2_PIX_FMT_P010_4L4
+ - 'T010'
+ - 10
+ - 4:2:0
+ - Cb, Cr
+ - Yes
+ - 4x4 tiles
* - V4L2_PIX_FMT_NV16
- 'NV16'
- 8
@@ -171,6 +185,7 @@ horizontally.
.. _V4L2-PIX-FMT-NV21:
.. _V4L2-PIX-FMT-NV12M:
.. _V4L2-PIX-FMT-NV21M:
+.. _V4L2-PIX-FMT-P010:
NV12, NV21, NV12M and NV21M
---------------------------
@@ -519,6 +534,50 @@ number of lines as the luma plane.
- Cb\ :sub:`33`
- Cr\ :sub:`33`
+.. _V4L2_PIX_FMT_P010:
+.. _V4L2-PIX-FMT-P010-4L4:
+
+P010 and tiled P010
+-------------------
+
+P010 is like NV12 with 10 bits per component, expanded to 16 bits.
+Data in the 10 high bits, zeros in the 6 low bits, arranged in little endian order.
+
+.. flat-table:: Sample 4x4 P010 Image
+ :header-rows: 0
+ :stub-columns: 0
+
+ * - start + 0:
+ - Y'\ :sub:`00`
+ - Y'\ :sub:`01`
+ - Y'\ :sub:`02`
+ - Y'\ :sub:`03`
+ * - start + 8:
+ - Y'\ :sub:`10`
+ - Y'\ :sub:`11`
+ - Y'\ :sub:`12`
+ - Y'\ :sub:`13`
+ * - start + 16:
+ - Y'\ :sub:`20`
+ - Y'\ :sub:`21`
+ - Y'\ :sub:`22`
+ - Y'\ :sub:`23`
+ * - start + 24:
+ - Y'\ :sub:`30`
+ - Y'\ :sub:`31`
+ - Y'\ :sub:`32`
+ - Y'\ :sub:`33`
+ * - start + 32:
+ - Cb\ :sub:`00`
+ - Cr\ :sub:`00`
+ - Cb\ :sub:`01`
+ - Cr\ :sub:`01`
+ * - start + 40:
+ - Cb\ :sub:`10`
+ - Cr\ :sub:`10`
+ - Cb\ :sub:`11`
+ - Cr\ :sub:`11`
+
Fully Planar YUV Formats
========================
@@ -538,6 +597,10 @@ relationship between the luma and chroma line padding and stride.
All components are stored with the same number of bits per component.
+``V4L2_PIX_FMT_P010_4L4`` stores pixels in 4x4 tiles, and stores tiles linearly
+in memory. The line stride must be aligned to multiple of 8 and image height to
+a multiple of 4. The layouts of the luma and chroma planes are identical.
+
.. raw:: latex
\small
diff --git a/Documentation/userspace-api/media/v4l/subdev-formats.rst b/Documentation/userspace-api/media/v4l/subdev-formats.rst
index 0cbc045d5df6..d21d532eee15 100644
--- a/Documentation/userspace-api/media/v4l/subdev-formats.rst
+++ b/Documentation/userspace-api/media/v4l/subdev-formats.rst
@@ -1492,6 +1492,80 @@ The following tables list existing packed RGB formats.
- b\ :sub:`2`
- b\ :sub:`1`
- b\ :sub:`0`
+ * .. _MEDIA-BUS-FMT-RGB666-1X30-CPADLO:
+
+ - MEDIA_BUS_FMT_RGB666_1X30-CPADLO
+ - 0x101e
+ -
+ -
+ -
+ - r\ :sub:`5`
+ - r\ :sub:`4`
+ - r\ :sub:`3`
+ - r\ :sub:`2`
+ - r\ :sub:`1`
+ - r\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - g\ :sub:`5`
+ - g\ :sub:`4`
+ - g\ :sub:`3`
+ - g\ :sub:`2`
+ - g\ :sub:`1`
+ - g\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - b\ :sub:`5`
+ - b\ :sub:`4`
+ - b\ :sub:`3`
+ - b\ :sub:`2`
+ - b\ :sub:`1`
+ - b\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ * .. _MEDIA-BUS-FMT-RGB888-1X30-CPADLO:
+
+ - MEDIA_BUS_FMT_RGB888_1X30-CPADLO
+ - 0x101f
+ -
+ -
+ -
+ - r\ :sub:`7`
+ - r\ :sub:`6`
+ - r\ :sub:`5`
+ - r\ :sub:`4`
+ - r\ :sub:`3`
+ - r\ :sub:`2`
+ - r\ :sub:`1`
+ - r\ :sub:`0`
+ - 0
+ - 0
+ - g\ :sub:`7`
+ - g\ :sub:`6`
+ - g\ :sub:`5`
+ - g\ :sub:`4`
+ - g\ :sub:`3`
+ - g\ :sub:`2`
+ - g\ :sub:`1`
+ - g\ :sub:`0`
+ - 0
+ - 0
+ - b\ :sub:`7`
+ - b\ :sub:`6`
+ - b\ :sub:`5`
+ - b\ :sub:`4`
+ - b\ :sub:`3`
+ - b\ :sub:`2`
+ - b\ :sub:`1`
+ - b\ :sub:`0`
+ - 0
+ - 0
* .. _MEDIA-BUS-FMT-ARGB888-1X32:
- MEDIA_BUS_FMT_ARGB888_1X32
@@ -1669,6 +1743,88 @@ The following table list existing packed 36bit wide RGB formats.
- 2
- 1
- 0
+ * .. _MEDIA-BUS-FMT-RGB666-1X36-CPADLO:
+
+ - MEDIA_BUS_FMT_RGB666_1X36_CPADLO
+ - 0x1020
+ -
+ - r\ :sub:`5`
+ - r\ :sub:`4`
+ - r\ :sub:`3`
+ - r\ :sub:`2`
+ - r\ :sub:`1`
+ - r\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - 0
+ - 0
+ - g\ :sub:`5`
+ - g\ :sub:`4`
+ - g\ :sub:`3`
+ - g\ :sub:`2`
+ - g\ :sub:`1`
+ - g\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - 0
+ - 0
+ - b\ :sub:`5`
+ - b\ :sub:`4`
+ - b\ :sub:`3`
+ - b\ :sub:`2`
+ - b\ :sub:`1`
+ - b\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - 0
+ - 0
+ * .. _MEDIA-BUS-FMT-RGB888-1X36-CPADLO:
+
+ - MEDIA_BUS_FMT_RGB888_1X36_CPADLO
+ - 0x1021
+ -
+ - r\ :sub:`7`
+ - r\ :sub:`6`
+ - r\ :sub:`5`
+ - r\ :sub:`4`
+ - r\ :sub:`3`
+ - r\ :sub:`2`
+ - r\ :sub:`1`
+ - r\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - g\ :sub:`7`
+ - g\ :sub:`6`
+ - g\ :sub:`5`
+ - g\ :sub:`4`
+ - g\ :sub:`3`
+ - g\ :sub:`2`
+ - g\ :sub:`1`
+ - g\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
+ - b\ :sub:`7`
+ - b\ :sub:`6`
+ - b\ :sub:`5`
+ - b\ :sub:`4`
+ - b\ :sub:`3`
+ - b\ :sub:`2`
+ - b\ :sub:`1`
+ - b\ :sub:`0`
+ - 0
+ - 0
+ - 0
+ - 0
* .. _MEDIA-BUS-FMT-RGB121212-1X36:
- MEDIA_BUS_FMT_RGB121212_1X36
diff --git a/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst b/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst
index 6eb40073c906..8db103760930 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-dqevent.rst
@@ -332,6 +332,11 @@ call.
- 0x0004
- This control event was triggered because the minimum, maximum,
step or the default value of the control changed.
+ * - ``V4L2_EVENT_CTRL_CH_DIMENSIONS``
+ - 0x0008
+ - This control event was triggered because the dimensions of the
+ control changed. Note that the number of dimensions remains the
+ same.
.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.5cm}|
diff --git a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
index 29971a45a2d4..892cfeb8b988 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-g-ext-ctrls.rst
@@ -249,6 +249,26 @@ still cause this situation.
- ``p_hdr10_mastering``
- A pointer to a struct :c:type:`v4l2_ctrl_hdr10_mastering_display`. Valid if this control is
of type ``V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY``.
+ * - struct :c:type:`v4l2_ctrl_hevc_sps` *
+ - ``p_hevc_sps``
+ - A pointer to a struct :c:type:`v4l2_ctrl_hevc_sps`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_HEVC_SPS``.
+ * - struct :c:type:`v4l2_ctrl_hevc_pps` *
+ - ``p_hevc_pps``
+ - A pointer to a struct :c:type:`v4l2_ctrl_hevc_pps`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_HEVC_PPS``.
+ * - struct :c:type:`v4l2_ctrl_hevc_slice_params` *
+ - ``p_hevc_slice_params``
+ - A pointer to a struct :c:type:`v4l2_ctrl_hevc_slice_params`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS``.
+ * - struct :c:type:`v4l2_ctrl_hevc_scaling_matrix` *
+ - ``p_hevc_scaling_matrix``
+ - A pointer to a struct :c:type:`v4l2_ctrl_hevc_scaling_matrix`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX``.
+ * - struct :c:type:`v4l2_ctrl_hevc_decode_params` *
+ - ``p_hevc_decode_params``
+ - A pointer to a struct :c:type:`v4l2_ctrl_hevc_decode_params`. Valid if this
+ control is of type ``V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS``.
* - void *
- ``ptr``
- A pointer to a compound type which can be an N-dimensional array
diff --git a/Documentation/userspace-api/media/v4l/vidioc-querycap.rst b/Documentation/userspace-api/media/v4l/vidioc-querycap.rst
index 63e23f6f95ee..6c57b8428356 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-querycap.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-querycap.rst
@@ -244,9 +244,6 @@ specification the ioctl returns an ``EINVAL`` error code.
- 0x01000000
- The device supports the :c:func:`read()` and/or
:c:func:`write()` I/O methods.
- * - ``V4L2_CAP_ASYNCIO``
- - 0x02000000
- - The device supports the :ref:`asynchronous <async>` I/O methods.
* - ``V4L2_CAP_STREAMING``
- 0x04000000
- The device supports the :ref:`streaming <mmap>` I/O method.
diff --git a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
index 88f630252d98..a20dfa2a933b 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-queryctrl.rst
@@ -625,6 +625,14 @@ See also the examples in :ref:`control`.
``V4L2_CTRL_FLAG_GRABBED`` flag when buffers are allocated or
streaming is in progress since most drivers do not support changing
the format in that case.
+ * - ``V4L2_CTRL_FLAG_DYNAMIC_ARRAY``
+ - 0x0800
+ - This control is a dynamically sized 1-dimensional array. It
+ behaves the same as a regular array, except that the number
+ of elements as reported by the ``elems`` field is between 1 and
+ ``dims[0]``. So setting the control with a differently sized
+ array will change the ``elems`` field when the control is
+ queried afterwards.
Return Value
============
diff --git a/Documentation/userspace-api/media/videodev2.h.rst.exceptions b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
index 9cbb7a0c354a..2a589d34b80e 100644
--- a/Documentation/userspace-api/media/videodev2.h.rst.exceptions
+++ b/Documentation/userspace-api/media/videodev2.h.rst.exceptions
@@ -70,6 +70,7 @@ replace symbol V4L2_COLORSPACE_REC709 :c:type:`v4l2_colorspace`
replace symbol V4L2_COLORSPACE_SMPTE170M :c:type:`v4l2_colorspace`
replace symbol V4L2_COLORSPACE_SMPTE240M :c:type:`v4l2_colorspace`
replace symbol V4L2_COLORSPACE_SRGB :c:type:`v4l2_colorspace`
+replace symbol V4L2_COLORSPACE_LAST :c:type:`v4l2_colorspace`
# Documented enum v4l2_xfer_func
replace symbol V4L2_XFER_FUNC_709 :c:type:`v4l2_xfer_func`
@@ -81,6 +82,7 @@ replace symbol V4L2_XFER_FUNC_NONE :c:type:`v4l2_xfer_func`
replace symbol V4L2_XFER_FUNC_SMPTE2084 :c:type:`v4l2_xfer_func`
replace symbol V4L2_XFER_FUNC_SMPTE240M :c:type:`v4l2_xfer_func`
replace symbol V4L2_XFER_FUNC_SRGB :c:type:`v4l2_xfer_func`
+replace symbol V4L2_XFER_FUNC_LAST :c:type:`v4l2_xfer_func`
# Documented enum v4l2_ycbcr_encoding
replace symbol V4L2_YCBCR_ENC_601 :c:type:`v4l2_ycbcr_encoding`
@@ -92,6 +94,7 @@ replace symbol V4L2_YCBCR_ENC_SYCC :c:type:`v4l2_ycbcr_encoding`
replace symbol V4L2_YCBCR_ENC_XV601 :c:type:`v4l2_ycbcr_encoding`
replace symbol V4L2_YCBCR_ENC_XV709 :c:type:`v4l2_ycbcr_encoding`
replace symbol V4L2_YCBCR_ENC_SMPTE240M :c:type:`v4l2_ycbcr_encoding`
+replace symbol V4L2_YCBCR_ENC_LAST :c:type:`v4l2_ycbcr_encoding`
# Documented enum v4l2_hsv_encoding
replace symbol V4L2_HSV_ENC_180 :c:type:`v4l2_hsv_encoding`
@@ -153,6 +156,11 @@ replace symbol V4L2_CTRL_TYPE_VP9_COMPRESSED_HDR :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_VP9_FRAME :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_HDR10_CLL_INFO :c:type:`v4l2_ctrl_type`
replace symbol V4L2_CTRL_TYPE_HDR10_MASTERING_DISPLAY :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_SPS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_PPS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_SCALING_MATRIX :c:type:`v4l2_ctrl_type`
+replace symbol V4L2_CTRL_TYPE_HEVC_DECODE_PARAMS :c:type:`v4l2_ctrl_type`
# V4L2 capability defines
replace define V4L2_CAP_VIDEO_CAPTURE device-capabilities
@@ -379,6 +387,7 @@ replace define V4L2_CTRL_FLAG_VOLATILE control-flags
replace define V4L2_CTRL_FLAG_HAS_PAYLOAD control-flags
replace define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE control-flags
replace define V4L2_CTRL_FLAG_MODIFY_LAYOUT control-flags
+replace define V4L2_CTRL_FLAG_DYNAMIC_ARRAY control-flags
replace define V4L2_CTRL_FLAG_NEXT_CTRL control
replace define V4L2_CTRL_FLAG_NEXT_COMPOUND control
@@ -505,6 +514,7 @@ replace define V4L2_EVENT_PRIVATE_START event-type
replace define V4L2_EVENT_CTRL_CH_VALUE ctrl-changes-flags
replace define V4L2_EVENT_CTRL_CH_FLAGS ctrl-changes-flags
replace define V4L2_EVENT_CTRL_CH_RANGE ctrl-changes-flags
+replace define V4L2_EVENT_CTRL_CH_DIMENSIONS ctrl-changes-flags
replace define V4L2_EVENT_SRC_CH_RESOLUTION src-changes-flags
diff --git a/Documentation/userspace-api/netlink/index.rst b/Documentation/userspace-api/netlink/index.rst
new file mode 100644
index 000000000000..b0c21538d97d
--- /dev/null
+++ b/Documentation/userspace-api/netlink/index.rst
@@ -0,0 +1,12 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+
+================
+Netlink Handbook
+================
+
+Netlink documentation for users.
+
+.. toctree::
+ :maxdepth: 2
+
+ intro
diff --git a/Documentation/userspace-api/netlink/intro.rst b/Documentation/userspace-api/netlink/intro.rst
new file mode 100644
index 000000000000..0955e9f203d3
--- /dev/null
+++ b/Documentation/userspace-api/netlink/intro.rst
@@ -0,0 +1,681 @@
+.. SPDX-License-Identifier: BSD-3-Clause
+
+=======================
+Introduction to Netlink
+=======================
+
+Netlink is often described as an ioctl() replacement.
+It aims to replace fixed-format C structures as supplied
+to ioctl() with a format which allows an easy way to add
+or extended the arguments.
+
+To achieve this Netlink uses a minimal fixed-format metadata header
+followed by multiple attributes in the TLV (type, length, value) format.
+
+Unfortunately the protocol has evolved over the years, in an organic
+and undocumented fashion, making it hard to coherently explain.
+To make the most practical sense this document starts by describing
+netlink as it is used today and dives into more "historical" uses
+in later sections.
+
+Opening a socket
+================
+
+Netlink communication happens over sockets, a socket needs to be
+opened first:
+
+.. code-block:: c
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+
+The use of sockets allows for a natural way of exchanging information
+in both directions (to and from the kernel). The operations are still
+performed synchronously when applications send() the request but
+a separate recv() system call is needed to read the reply.
+
+A very simplified flow of a Netlink "call" will therefore look
+something like:
+
+.. code-block:: c
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+
+ /* format the request */
+ send(fd, &request, sizeof(request));
+ n = recv(fd, &response, RSP_BUFFER_SIZE);
+ /* interpret the response */
+
+Netlink also provides natural support for "dumping", i.e. communicating
+to user space all objects of a certain type (e.g. dumping all network
+interfaces).
+
+.. code-block:: c
+
+ fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+
+ /* format the dump request */
+ send(fd, &request, sizeof(request));
+ while (1) {
+ n = recv(fd, &buffer, RSP_BUFFER_SIZE);
+ /* one recv() call can read multiple messages, hence the loop below */
+ for (nl_msg in buffer) {
+ if (nl_msg.nlmsg_type == NLMSG_DONE)
+ goto dump_finished;
+ /* process the object */
+ }
+ }
+ dump_finished:
+
+The first two arguments of the socket() call require little explanation -
+it is opening a Netlink socket, with all headers provided by the user
+(hence NETLINK, RAW). The last argument is the protocol within Netlink.
+This field used to identify the subsystem with which the socket will
+communicate.
+
+Classic vs Generic Netlink
+--------------------------
+
+Initial implementation of Netlink depended on a static allocation
+of IDs to subsystems and provided little supporting infrastructure.
+Let us refer to those protocols collectively as **Classic Netlink**.
+The list of them is defined on top of the ``include/uapi/linux/netlink.h``
+file, they include among others - general networking (NETLINK_ROUTE),
+iSCSI (NETLINK_ISCSI), and audit (NETLINK_AUDIT).
+
+**Generic Netlink** (introduced in 2005) allows for dynamic registration of
+subsystems (and subsystem ID allocation), introspection and simplifies
+implementing the kernel side of the interface.
+
+The following section describes how to use Generic Netlink, as the
+number of subsystems using Generic Netlink outnumbers the older
+protocols by an order of magnitude. There are also no plans for adding
+more Classic Netlink protocols to the kernel.
+Basic information on how communicating with core networking parts of
+the Linux kernel (or another of the 20 subsystems using Classic
+Netlink) differs from Generic Netlink is provided later in this document.
+
+Generic Netlink
+===============
+
+In addition to the Netlink fixed metadata header each Netlink protocol
+defines its own fixed metadata header. (Similarly to how network
+headers stack - Ethernet > IP > TCP we have Netlink > Generic N. > Family.)
+
+A Netlink message always starts with struct nlmsghdr, which is followed
+by a protocol-specific header. In case of Generic Netlink the protocol
+header is struct genlmsghdr.
+
+The practical meaning of the fields in case of Generic Netlink is as follows:
+
+.. code-block:: c
+
+ struct nlmsghdr {
+ __u32 nlmsg_len; /* Length of message including headers */
+ __u16 nlmsg_type; /* Generic Netlink Family (subsystem) ID */
+ __u16 nlmsg_flags; /* Flags - request or dump */
+ __u32 nlmsg_seq; /* Sequence number */
+ __u32 nlmsg_pid; /* Port ID, set to 0 */
+ };
+ struct genlmsghdr {
+ __u8 cmd; /* Command, as defined by the Family */
+ __u8 version; /* Irrelevant, set to 1 */
+ __u16 reserved; /* Reserved, set to 0 */
+ };
+ /* TLV attributes follow... */
+
+In Classic Netlink :c:member:`nlmsghdr.nlmsg_type` used to identify
+which operation within the subsystem the message was referring to
+(e.g. get information about a netdev). Generic Netlink needs to mux
+multiple subsystems in a single protocol so it uses this field to
+identify the subsystem, and :c:member:`genlmsghdr.cmd` identifies
+the operation instead. (See :ref:`res_fam` for
+information on how to find the Family ID of the subsystem of interest.)
+Note that the first 16 values (0 - 15) of this field are reserved for
+control messages both in Classic Netlink and Generic Netlink.
+See :ref:`nl_msg_type` for more details.
+
+There are 3 usual types of message exchanges on a Netlink socket:
+
+ - performing a single action (``do``);
+ - dumping information (``dump``);
+ - getting asynchronous notifications (``multicast``).
+
+Classic Netlink is very flexible and presumably allows other types
+of exchanges to happen, but in practice those are the three that get
+used.
+
+Asynchronous notifications are sent by the kernel and received by
+the user sockets which subscribed to them. ``do`` and ``dump`` requests
+are initiated by the user. :c:member:`nlmsghdr.nlmsg_flags` should
+be set as follows:
+
+ - for ``do``: ``NLM_F_REQUEST | NLM_F_ACK``
+ - for ``dump``: ``NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP``
+
+:c:member:`nlmsghdr.nlmsg_seq` should be a set to a monotonically
+increasing value. The value gets echoed back in responses and doesn't
+matter in practice, but setting it to an increasing value for each
+message sent is considered good hygiene. The purpose of the field is
+matching responses to requests. Asynchronous notifications will have
+:c:member:`nlmsghdr.nlmsg_seq` of ``0``.
+
+:c:member:`nlmsghdr.nlmsg_pid` is the Netlink equivalent of an address.
+This field can be set to ``0`` when talking to the kernel.
+See :ref:`nlmsg_pid` for the (uncommon) uses of the field.
+
+The expected use for :c:member:`genlmsghdr.version` was to allow
+versioning of the APIs provided by the subsystems. No subsystem to
+date made significant use of this field, so setting it to ``1`` seems
+like a safe bet.
+
+.. _nl_msg_type:
+
+Netlink message types
+---------------------
+
+As previously mentioned :c:member:`nlmsghdr.nlmsg_type` carries
+protocol specific values but the first 16 identifiers are reserved
+(first subsystem specific message type should be equal to
+``NLMSG_MIN_TYPE`` which is ``0x10``).
+
+There are only 4 Netlink control messages defined:
+
+ - ``NLMSG_NOOP`` - ignore the message, not used in practice;
+ - ``NLMSG_ERROR`` - carries the return code of an operation;
+ - ``NLMSG_DONE`` - marks the end of a dump;
+ - ``NLMSG_OVERRUN`` - socket buffer has overflown, not used to date.
+
+``NLMSG_ERROR`` and ``NLMSG_DONE`` are of practical importance.
+They carry return codes for operations. Note that unless
+the ``NLM_F_ACK`` flag is set on the request Netlink will not respond
+with ``NLMSG_ERROR`` if there is no error. To avoid having to special-case
+this quirk it is recommended to always set ``NLM_F_ACK``.
+
+The format of ``NLMSG_ERROR`` is described by struct nlmsgerr::
+
+ ----------------------------------------------
+ | struct nlmsghdr - response header |
+ ----------------------------------------------
+ | int error |
+ ----------------------------------------------
+ | struct nlmsghdr - original request header |
+ ----------------------------------------------
+ | ** optionally (1) payload of the request |
+ ----------------------------------------------
+ | ** optionally (2) extended ACK |
+ ----------------------------------------------
+
+There are two instances of struct nlmsghdr here, first of the response
+and second of the request. ``NLMSG_ERROR`` carries the information about
+the request which led to the error. This could be useful when trying
+to match requests to responses or re-parse the request to dump it into
+logs.
+
+The payload of the request is not echoed in messages reporting success
+(``error == 0``) or if ``NETLINK_CAP_ACK`` setsockopt() was set.
+The latter is common
+and perhaps recommended as having to read a copy of every request back
+from the kernel is rather wasteful. The absence of request payload
+is indicated by ``NLM_F_CAPPED`` in :c:member:`nlmsghdr.nlmsg_flags`.
+
+The second optional element of ``NLMSG_ERROR`` are the extended ACK
+attributes. See :ref:`ext_ack` for more details. The presence
+of extended ACK is indicated by ``NLM_F_ACK_TLVS`` in
+:c:member:`nlmsghdr.nlmsg_flags`.
+
+``NLMSG_DONE`` is simpler, the request is never echoed but the extended
+ACK attributes may be present::
+
+ ----------------------------------------------
+ | struct nlmsghdr - response header |
+ ----------------------------------------------
+ | int error |
+ ----------------------------------------------
+ | ** optionally extended ACK |
+ ----------------------------------------------
+
+.. _res_fam:
+
+Resolving the Family ID
+-----------------------
+
+This section explains how to find the Family ID of a subsystem.
+It also serves as an example of Generic Netlink communication.
+
+Generic Netlink is itself a subsystem exposed via the Generic Netlink API.
+To avoid a circular dependency Generic Netlink has a statically allocated
+Family ID (``GENL_ID_CTRL`` which is equal to ``NLMSG_MIN_TYPE``).
+The Generic Netlink family implements a command used to find out information
+about other families (``CTRL_CMD_GETFAMILY``).
+
+To get information about the Generic Netlink family named for example
+``"test1"`` we need to send a message on the previously opened Generic Netlink
+socket. The message should target the Generic Netlink Family (1), be a
+``do`` (2) call to ``CTRL_CMD_GETFAMILY`` (3). A ``dump`` version of this
+call would make the kernel respond with information about *all* the families
+it knows about. Last but not least the name of the family in question has
+to be specified (4) as an attribute with the appropriate type::
+
+ struct nlmsghdr:
+ __u32 nlmsg_len: 32
+ __u16 nlmsg_type: GENL_ID_CTRL // (1)
+ __u16 nlmsg_flags: NLM_F_REQUEST | NLM_F_ACK // (2)
+ __u32 nlmsg_seq: 1
+ __u32 nlmsg_pid: 0
+
+ struct genlmsghdr:
+ __u8 cmd: CTRL_CMD_GETFAMILY // (3)
+ __u8 version: 2 /* or 1, doesn't matter */
+ __u16 reserved: 0
+
+ struct nlattr: // (4)
+ __u16 nla_len: 10
+ __u16 nla_type: CTRL_ATTR_FAMILY_NAME
+ char data: test1\0
+
+ (padding:)
+ char data: \0\0
+
+The length fields in Netlink (:c:member:`nlmsghdr.nlmsg_len`
+and :c:member:`nlattr.nla_len`) always *include* the header.
+Attribute headers in netlink must be aligned to 4 bytes from the start
+of the message, hence the extra ``\0\0`` after ``CTRL_ATTR_FAMILY_NAME``.
+The attribute lengths *exclude* the padding.
+
+If the family is found kernel will reply with two messages, the response
+with all the information about the family::
+
+ /* Message #1 - reply */
+ struct nlmsghdr:
+ __u32 nlmsg_len: 136
+ __u16 nlmsg_type: GENL_ID_CTRL
+ __u16 nlmsg_flags: 0
+ __u32 nlmsg_seq: 1 /* echoed from our request */
+ __u32 nlmsg_pid: 5831 /* The PID of our user space process */
+
+ struct genlmsghdr:
+ __u8 cmd: CTRL_CMD_GETFAMILY
+ __u8 version: 2
+ __u16 reserved: 0
+
+ struct nlattr:
+ __u16 nla_len: 10
+ __u16 nla_type: CTRL_ATTR_FAMILY_NAME
+ char data: test1\0
+
+ (padding:)
+ data: \0\0
+
+ struct nlattr:
+ __u16 nla_len: 6
+ __u16 nla_type: CTRL_ATTR_FAMILY_ID
+ __u16: 123 /* The Family ID we are after */
+
+ (padding:)
+ char data: \0\0
+
+ struct nlattr:
+ __u16 nla_len: 9
+ __u16 nla_type: CTRL_ATTR_FAMILY_VERSION
+ __u16: 1
+
+ /* ... etc, more attributes will follow. */
+
+And the error code (success) since ``NLM_F_ACK`` had been set on the request::
+
+ /* Message #2 - the ACK */
+ struct nlmsghdr:
+ __u32 nlmsg_len: 36
+ __u16 nlmsg_type: NLMSG_ERROR
+ __u16 nlmsg_flags: NLM_F_CAPPED /* There won't be a payload */
+ __u32 nlmsg_seq: 1 /* echoed from our request */
+ __u32 nlmsg_pid: 5831 /* The PID of our user space process */
+
+ int error: 0
+
+ struct nlmsghdr: /* Copy of the request header as we sent it */
+ __u32 nlmsg_len: 32
+ __u16 nlmsg_type: GENL_ID_CTRL
+ __u16 nlmsg_flags: NLM_F_REQUEST | NLM_F_ACK
+ __u32 nlmsg_seq: 1
+ __u32 nlmsg_pid: 0
+
+The order of attributes (struct nlattr) is not guaranteed so the user
+has to walk the attributes and parse them.
+
+Note that Generic Netlink sockets are not associated or bound to a single
+family. A socket can be used to exchange messages with many different
+families, selecting the recipient family on message-by-message basis using
+the :c:member:`nlmsghdr.nlmsg_type` field.
+
+.. _ext_ack:
+
+Extended ACK
+------------
+
+Extended ACK controls reporting of additional error/warning TLVs
+in ``NLMSG_ERROR`` and ``NLMSG_DONE`` messages. To maintain backward
+compatibility this feature has to be explicitly enabled by setting
+the ``NETLINK_EXT_ACK`` setsockopt() to ``1``.
+
+Types of extended ack attributes are defined in enum nlmsgerr_attrs.
+The most commonly used attributes are ``NLMSGERR_ATTR_MSG``,
+``NLMSGERR_ATTR_OFFS`` and ``NLMSGERR_ATTR_MISS_*``.
+
+``NLMSGERR_ATTR_MSG`` carries a message in English describing
+the encountered problem. These messages are far more detailed
+than what can be expressed thru standard UNIX error codes.
+
+``NLMSGERR_ATTR_OFFS`` points to the attribute which caused the problem.
+
+``NLMSGERR_ATTR_MISS_TYPE`` and ``NLMSGERR_ATTR_MISS_NEST``
+inform about a missing attribute.
+
+Extended ACKs can be reported on errors as well as in case of success.
+The latter should be treated as a warning.
+
+Extended ACKs greatly improve the usability of Netlink and should
+always be enabled, appropriately parsed and reported to the user.
+
+Advanced topics
+===============
+
+Dump consistency
+----------------
+
+Some of the data structures kernel uses for storing objects make
+it hard to provide an atomic snapshot of all the objects in a dump
+(without impacting the fast-paths updating them).
+
+Kernel may set the ``NLM_F_DUMP_INTR`` flag on any message in a dump
+(including the ``NLMSG_DONE`` message) if the dump was interrupted and
+may be inconsistent (e.g. missing objects). User space should retry
+the dump if it sees the flag set.
+
+Introspection
+-------------
+
+The basic introspection abilities are enabled by access to the Family
+object as reported in :ref:`res_fam`. User can query information about
+the Generic Netlink family, including which operations are supported
+by the kernel and what attributes the kernel understands.
+Family information includes the highest ID of an attribute kernel can parse,
+a separate command (``CTRL_CMD_GETPOLICY``) provides detailed information
+about supported attributes, including ranges of values the kernel accepts.
+
+Querying family information is useful in cases when user space needs
+to make sure that the kernel has support for a feature before issuing
+a request.
+
+.. _nlmsg_pid:
+
+nlmsg_pid
+---------
+
+:c:member:`nlmsghdr.nlmsg_pid` is the Netlink equivalent of an address.
+It is referred to as Port ID, sometimes Process ID because for historical
+reasons if the application does not select (bind() to) an explicit Port ID
+kernel will automatically assign it the ID equal to its Process ID
+(as reported by the getpid() system call).
+
+Similarly to the bind() semantics of the TCP/IP network protocols the value
+of zero means "assign automatically", hence it is common for applications
+to leave the :c:member:`nlmsghdr.nlmsg_pid` field initialized to ``0``.
+
+The field is still used today in rare cases when kernel needs to send
+a unicast notification. User space application can use bind() to associate
+its socket with a specific PID, it then communicates its PID to the kernel.
+This way the kernel can reach the specific user space process.
+
+This sort of communication is utilized in UMH (User Mode Helper)-like
+scenarios when kernel needs to trigger user space processing or ask user
+space for a policy decision.
+
+Multicast notifications
+-----------------------
+
+One of the strengths of Netlink is the ability to send event notifications
+to user space. This is a unidirectional form of communication (kernel ->
+user) and does not involve any control messages like ``NLMSG_ERROR`` or
+``NLMSG_DONE``.
+
+For example the Generic Netlink family itself defines a set of multicast
+notifications about registered families. When a new family is added the
+sockets subscribed to the notifications will get the following message::
+
+ struct nlmsghdr:
+ __u32 nlmsg_len: 136
+ __u16 nlmsg_type: GENL_ID_CTRL
+ __u16 nlmsg_flags: 0
+ __u32 nlmsg_seq: 0
+ __u32 nlmsg_pid: 0
+
+ struct genlmsghdr:
+ __u8 cmd: CTRL_CMD_NEWFAMILY
+ __u8 version: 2
+ __u16 reserved: 0
+
+ struct nlattr:
+ __u16 nla_len: 10
+ __u16 nla_type: CTRL_ATTR_FAMILY_NAME
+ char data: test1\0
+
+ (padding:)
+ data: \0\0
+
+ struct nlattr:
+ __u16 nla_len: 6
+ __u16 nla_type: CTRL_ATTR_FAMILY_ID
+ __u16: 123 /* The Family ID we are after */
+
+ (padding:)
+ char data: \0\0
+
+ struct nlattr:
+ __u16 nla_len: 9
+ __u16 nla_type: CTRL_ATTR_FAMILY_VERSION
+ __u16: 1
+
+ /* ... etc, more attributes will follow. */
+
+The notification contains the same information as the response
+to the ``CTRL_CMD_GETFAMILY`` request.
+
+The Netlink headers of the notification are mostly 0 and irrelevant.
+The :c:member:`nlmsghdr.nlmsg_seq` may be either zero or a monotonically
+increasing notification sequence number maintained by the family.
+
+To receive notifications the user socket must subscribe to the relevant
+notification group. Much like the Family ID, the Group ID for a given
+multicast group is dynamic and can be found inside the Family information.
+The ``CTRL_ATTR_MCAST_GROUPS`` attribute contains nests with names
+(``CTRL_ATTR_MCAST_GRP_NAME``) and IDs (``CTRL_ATTR_MCAST_GRP_ID``) of
+the groups family.
+
+Once the Group ID is known a setsockopt() call adds the socket to the group:
+
+.. code-block:: c
+
+ unsigned int group_id;
+
+ /* .. find the group ID... */
+
+ setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP,
+ &group_id, sizeof(group_id));
+
+The socket will now receive notifications.
+
+It is recommended to use separate sockets for receiving notifications
+and sending requests to the kernel. The asynchronous nature of notifications
+means that they may get mixed in with the responses making the message
+handling much harder.
+
+Buffer sizing
+-------------
+
+Netlink sockets are datagram sockets rather than stream sockets,
+meaning that each message must be received in its entirety by a single
+recv()/recvmsg() system call. If the buffer provided by the user is too
+short, the message will be truncated and the ``MSG_TRUNC`` flag set
+in struct msghdr (struct msghdr is the second argument
+of the recvmsg() system call, *not* a Netlink header).
+
+Upon truncation the remaining part of the message is discarded.
+
+Netlink expects that the user buffer will be at least 8kB or a page
+size of the CPU architecture, whichever is bigger. Particular Netlink
+families may, however, require a larger buffer. 32kB buffer is recommended
+for most efficient handling of dumps (larger buffer fits more dumped
+objects and therefore fewer recvmsg() calls are needed).
+
+Classic Netlink
+===============
+
+The main differences between Classic and Generic Netlink are the dynamic
+allocation of subsystem identifiers and availability of introspection.
+In theory the protocol does not differ significantly, however, in practice
+Classic Netlink experimented with concepts which were abandoned in Generic
+Netlink (really, they usually only found use in a small corner of a single
+subsystem). This section is meant as an explainer of a few of such concepts,
+with the explicit goal of giving the Generic Netlink
+users the confidence to ignore them when reading the uAPI headers.
+
+Most of the concepts and examples here refer to the ``NETLINK_ROUTE`` family,
+which covers much of the configuration of the Linux networking stack.
+Real documentation of that family, deserves a chapter (or a book) of its own.
+
+Families
+--------
+
+Netlink refers to subsystems as families. This is a remnant of using
+sockets and the concept of protocol families, which are part of message
+demultiplexing in ``NETLINK_ROUTE``.
+
+Sadly every layer of encapsulation likes to refer to whatever it's carrying
+as "families" making the term very confusing:
+
+ 1. AF_NETLINK is a bona fide socket protocol family
+ 2. AF_NETLINK's documentation refers to what comes after its own
+ header (struct nlmsghdr) in a message as a "Family Header"
+ 3. Generic Netlink is a family for AF_NETLINK (struct genlmsghdr follows
+ struct nlmsghdr), yet it also calls its users "Families".
+
+Note that the Generic Netlink Family IDs are in a different "ID space"
+and overlap with Classic Netlink protocol numbers (e.g. ``NETLINK_CRYPTO``
+has the Classic Netlink protocol ID of 21 which Generic Netlink will
+happily allocate to one of its families as well).
+
+Strict checking
+---------------
+
+The ``NETLINK_GET_STRICT_CHK`` socket option enables strict input checking
+in ``NETLINK_ROUTE``. It was needed because historically kernel did not
+validate the fields of structures it didn't process. This made it impossible
+to start using those fields later without risking regressions in applications
+which initialized them incorrectly or not at all.
+
+``NETLINK_GET_STRICT_CHK`` declares that the application is initializing
+all fields correctly. It also opts into validating that message does not
+contain trailing data and requests that kernel rejects attributes with
+type higher than largest attribute type known to the kernel.
+
+``NETLINK_GET_STRICT_CHK`` is not used outside of ``NETLINK_ROUTE``.
+
+Unknown attributes
+------------------
+
+Historically Netlink ignored all unknown attributes. The thinking was that
+it would free the application from having to probe what kernel supports.
+The application could make a request to change the state and check which
+parts of the request "stuck".
+
+This is no longer the case for new Generic Netlink families and those opting
+in to strict checking. See enum netlink_validation for validation types
+performed.
+
+Fixed metadata and structures
+-----------------------------
+
+Classic Netlink made liberal use of fixed-format structures within
+the messages. Messages would commonly have a structure with
+a considerable number of fields after struct nlmsghdr. It was also
+common to put structures with multiple members inside attributes,
+without breaking each member into an attribute of its own.
+
+This has caused problems with validation and extensibility and
+therefore using binary structures is actively discouraged for new
+attributes.
+
+Request types
+-------------
+
+``NETLINK_ROUTE`` categorized requests into 4 types ``NEW``, ``DEL``, ``GET``,
+and ``SET``. Each object can handle all or some of those requests
+(objects being netdevs, routes, addresses, qdiscs etc.) Request type
+is defined by the 2 lowest bits of the message type, so commands for
+new objects would always be allocated with a stride of 4.
+
+Each object would also have it's own fixed metadata shared by all request
+types (e.g. struct ifinfomsg for netdev requests, struct ifaddrmsg for address
+requests, struct tcmsg for qdisc requests).
+
+Even though other protocols and Generic Netlink commands often use
+the same verbs in their message names (``GET``, ``SET``) the concept
+of request types did not find wider adoption.
+
+Notification echo
+-----------------
+
+``NLM_F_ECHO`` requests for notifications resulting from the request
+to be queued onto the requesting socket. This is useful to discover
+the impact of the request.
+
+Note that this feature is not universally implemented.
+
+Other request-type-specific flags
+---------------------------------
+
+Classic Netlink defined various flags for its ``GET``, ``NEW``
+and ``DEL`` requests in the upper byte of nlmsg_flags in struct nlmsghdr.
+Since request types have not been generalized the request type specific
+flags are rarely used (and considered deprecated for new families).
+
+For ``GET`` - ``NLM_F_ROOT`` and ``NLM_F_MATCH`` are combined into
+``NLM_F_DUMP``, and not used separately. ``NLM_F_ATOMIC`` is never used.
+
+For ``DEL`` - ``NLM_F_NONREC`` is only used by nftables and ``NLM_F_BULK``
+only by FDB some operations.
+
+The flags for ``NEW`` are used most commonly in classic Netlink. Unfortunately,
+the meaning is not crystal clear. The following description is based on the
+best guess of the intention of the authors, and in practice all families
+stray from it in one way or another. ``NLM_F_REPLACE`` asks to replace
+an existing object, if no matching object exists the operation should fail.
+``NLM_F_EXCL`` has the opposite semantics and only succeeds if object already
+existed.
+``NLM_F_CREATE`` asks for the object to be created if it does not
+exist, it can be combined with ``NLM_F_REPLACE`` and ``NLM_F_EXCL``.
+
+A comment in the main Netlink uAPI header states::
+
+ 4.4BSD ADD NLM_F_CREATE|NLM_F_EXCL
+ 4.4BSD CHANGE NLM_F_REPLACE
+
+ True CHANGE NLM_F_CREATE|NLM_F_REPLACE
+ Append NLM_F_CREATE
+ Check NLM_F_EXCL
+
+which seems to indicate that those flags predate request types.
+``NLM_F_REPLACE`` without ``NLM_F_CREATE`` was initially used instead
+of ``SET`` commands.
+``NLM_F_EXCL`` without ``NLM_F_CREATE`` was used to check if object exists
+without creating it, presumably predating ``GET`` commands.
+
+``NLM_F_APPEND`` indicates that if one key can have multiple objects associated
+with it (e.g. multiple next-hop objects for a route) the new object should be
+added to the list rather than replacing the entire list.
+
+uAPI reference
+==============
+
+.. kernel-doc:: include/uapi/linux/netlink.h
diff --git a/Documentation/virt/hyperv/clocks.rst b/Documentation/virt/hyperv/clocks.rst
new file mode 100644
index 000000000000..2da2879fad52
--- /dev/null
+++ b/Documentation/virt/hyperv/clocks.rst
@@ -0,0 +1,73 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Clocks and Timers
+=================
+
+arm64
+-----
+On arm64, Hyper-V virtualizes the ARMv8 architectural system counter
+and timer. Guest VMs use this virtualized hardware as the Linux
+clocksource and clockevents via the standard arm_arch_timer.c
+driver, just as they would on bare metal. Linux vDSO support for the
+architectural system counter is functional in guest VMs on Hyper-V.
+While Hyper-V also provides a synthetic system clock and four synthetic
+per-CPU timers as described in the TLFS, they are not used by the
+Linux kernel in a Hyper-V guest on arm64. However, older versions
+of Hyper-V for arm64 only partially virtualize the ARMv8
+architectural timer, such that the timer does not generate
+interrupts in the VM. Because of this limitation, running current
+Linux kernel versions on these older Hyper-V versions requires an
+out-of-tree patch to use the Hyper-V synthetic clocks/timers instead.
+
+x86/x64
+-------
+On x86/x64, Hyper-V provides guest VMs with a synthetic system clock
+and four synthetic per-CPU timers as described in the TLFS. Hyper-V
+also provides access to the virtualized TSC via the RDTSC and
+related instructions. These TSC instructions do not trap to
+the hypervisor and so provide excellent performance in a VM.
+Hyper-V performs TSC calibration, and provides the TSC frequency
+to the guest VM via a synthetic MSR. Hyper-V initialization code
+in Linux reads this MSR to get the frequency, so it skips TSC
+calibration and sets tsc_reliable. Hyper-V provides virtualized
+versions of the PIT (in Hyper-V Generation 1 VMs only), local
+APIC timer, and RTC. Hyper-V does not provide a virtualized HPET in
+guest VMs.
+
+The Hyper-V synthetic system clock can be read via a synthetic MSR,
+but this access traps to the hypervisor. As a faster alternative,
+the guest can configure a memory page to be shared between the guest
+and the hypervisor. Hyper-V populates this memory page with a
+64-bit scale value and offset value. To read the synthetic clock
+value, the guest reads the TSC and then applies the scale and offset
+as described in the Hyper-V TLFS. The resulting value advances
+at a constant 10 MHz frequency. In the case of a live migration
+to a host with a different TSC frequency, Hyper-V adjusts the
+scale and offset values in the shared page so that the 10 MHz
+frequency is maintained.
+
+Starting with Windows Server 2022 Hyper-V, Hyper-V uses hardware
+support for TSC frequency scaling to enable live migration of VMs
+across Hyper-V hosts where the TSC frequency may be different.
+When a Linux guest detects that this Hyper-V functionality is
+available, it prefers to use Linux's standard TSC-based clocksource.
+Otherwise, it uses the clocksource for the Hyper-V synthetic system
+clock implemented via the shared page (identified as
+"hyperv_clocksource_tsc_page").
+
+The Hyper-V synthetic system clock is available to user space via
+vDSO, and gettimeofday() and related system calls can execute
+entirely in user space. The vDSO is implemented by mapping the
+shared page with scale and offset values into user space. User
+space code performs the same algorithm of reading the TSC and
+appying the scale and offset to get the constant 10 MHz clock.
+
+Linux clockevents are based on Hyper-V synthetic timer 0. While
+Hyper-V offers 4 synthetic timers for each CPU, Linux only uses
+timer 0. Interrupts from stimer0 are recorded on the "HVS" line in
+/proc/interrupts. Clockevents based on the virtualized PIT and
+local APIC timer also work, but the Hyper-V synthetic timer is
+preferred.
+
+The driver for the Hyper-V synthetic system clock and timers is
+drivers/clocksource/hyperv_timer.c.
diff --git a/Documentation/virt/hyperv/index.rst b/Documentation/virt/hyperv/index.rst
new file mode 100644
index 000000000000..4a7a1b738bbe
--- /dev/null
+++ b/Documentation/virt/hyperv/index.rst
@@ -0,0 +1,12 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+======================
+Hyper-V Enlightenments
+======================
+
+.. toctree::
+ :maxdepth: 1
+
+ overview
+ vmbus
+ clocks
diff --git a/Documentation/virt/hyperv/overview.rst b/Documentation/virt/hyperv/overview.rst
new file mode 100644
index 000000000000..cd493332c88a
--- /dev/null
+++ b/Documentation/virt/hyperv/overview.rst
@@ -0,0 +1,207 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Overview
+========
+The Linux kernel contains a variety of code for running as a fully
+enlightened guest on Microsoft's Hyper-V hypervisor. Hyper-V
+consists primarily of a bare-metal hypervisor plus a virtual machine
+management service running in the parent partition (roughly
+equivalent to KVM and QEMU, for example). Guest VMs run in child
+partitions. In this documentation, references to Hyper-V usually
+encompass both the hypervisor and the VMM service without making a
+distinction about which functionality is provided by which
+component.
+
+Hyper-V runs on x86/x64 and arm64 architectures, and Linux guests
+are supported on both. The functionality and behavior of Hyper-V is
+generally the same on both architectures unless noted otherwise.
+
+Linux Guest Communication with Hyper-V
+--------------------------------------
+Linux guests communicate with Hyper-V in four different ways:
+
+* Implicit traps: As defined by the x86/x64 or arm64 architecture,
+ some guest actions trap to Hyper-V. Hyper-V emulates the action and
+ returns control to the guest. This behavior is generally invisible
+ to the Linux kernel.
+
+* Explicit hypercalls: Linux makes an explicit function call to
+ Hyper-V, passing parameters. Hyper-V performs the requested action
+ and returns control to the caller. Parameters are passed in
+ processor registers or in memory shared between the Linux guest and
+ Hyper-V. On x86/x64, hypercalls use a Hyper-V specific calling
+ sequence. On arm64, hypercalls use the ARM standard SMCCC calling
+ sequence.
+
+* Synthetic register access: Hyper-V implements a variety of
+ synthetic registers. On x86/x64 these registers appear as MSRs in
+ the guest, and the Linux kernel can read or write these MSRs using
+ the normal mechanisms defined by the x86/x64 architecture. On
+ arm64, these synthetic registers must be accessed using explicit
+ hypercalls.
+
+* VMbus: VMbus is a higher-level software construct that is built on
+ the other 3 mechanisms. It is a message passing interface between
+ the Hyper-V host and the Linux guest. It uses memory that is shared
+ between Hyper-V and the guest, along with various signaling
+ mechanisms.
+
+The first three communication mechanisms are documented in the
+`Hyper-V Top Level Functional Spec (TLFS)`_. The TLFS describes
+general Hyper-V functionality and provides details on the hypercalls
+and synthetic registers. The TLFS is currently written for the
+x86/x64 architecture only.
+
+.. _Hyper-V Top Level Functional Spec (TLFS): https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/tlfs/tlfs
+
+VMbus is not documented. This documentation provides a high-level
+overview of VMbus and how it works, but the details can be discerned
+only from the code.
+
+Sharing Memory
+--------------
+Many aspects are communication between Hyper-V and Linux are based
+on sharing memory. Such sharing is generally accomplished as
+follows:
+
+* Linux allocates memory from its physical address space using
+ standard Linux mechanisms.
+
+* Linux tells Hyper-V the guest physical address (GPA) of the
+ allocated memory. Many shared areas are kept to 1 page so that a
+ single GPA is sufficient. Larger shared areas require a list of
+ GPAs, which usually do not need to be contiguous in the guest
+ physical address space. How Hyper-V is told about the GPA or list
+ of GPAs varies. In some cases, a single GPA is written to a
+ synthetic register. In other cases, a GPA or list of GPAs is sent
+ in a VMbus message.
+
+* Hyper-V translates the GPAs into "real" physical memory addresses,
+ and creates a virtual mapping that it can use to access the memory.
+
+* Linux can later revoke sharing it has previously established by
+ telling Hyper-V to set the shared GPA to zero.
+
+Hyper-V operates with a page size of 4 Kbytes. GPAs communicated to
+Hyper-V may be in the form of page numbers, and always describe a
+range of 4 Kbytes. Since the Linux guest page size on x86/x64 is
+also 4 Kbytes, the mapping from guest page to Hyper-V page is 1-to-1.
+On arm64, Hyper-V supports guests with 4/16/64 Kbyte pages as
+defined by the arm64 architecture. If Linux is using 16 or 64
+Kbyte pages, Linux code must be careful to communicate with Hyper-V
+only in terms of 4 Kbyte pages. HV_HYP_PAGE_SIZE and related macros
+are used in code that communicates with Hyper-V so that it works
+correctly in all configurations.
+
+As described in the TLFS, a few memory pages shared between Hyper-V
+and the Linux guest are "overlay" pages. With overlay pages, Linux
+uses the usual approach of allocating guest memory and telling
+Hyper-V the GPA of the allocated memory. But Hyper-V then replaces
+that physical memory page with a page it has allocated, and the
+original physical memory page is no longer accessible in the guest
+VM. Linux may access the memory normally as if it were the memory
+that it originally allocated. The "overlay" behavior is visible
+only because the contents of the page (as seen by Linux) change at
+the time that Linux originally establishes the sharing and the
+overlay page is inserted. Similarly, the contents change if Linux
+revokes the sharing, in which case Hyper-V removes the overlay page,
+and the guest page originally allocated by Linux becomes visible
+again.
+
+Before Linux does a kexec to a kdump kernel or any other kernel,
+memory shared with Hyper-V should be revoked. Hyper-V could modify
+a shared page or remove an overlay page after the new kernel is
+using the page for a different purpose, corrupting the new kernel.
+Hyper-V does not provide a single "set everything" operation to
+guest VMs, so Linux code must individually revoke all sharing before
+doing kexec. See hv_kexec_handler() and hv_crash_handler(). But
+the crash/panic path still has holes in cleanup because some shared
+pages are set using per-CPU synthetic registers and there's no
+mechanism to revoke the shared pages for CPUs other than the CPU
+running the panic path.
+
+CPU Management
+--------------
+Hyper-V does not have a ability to hot-add or hot-remove a CPU
+from a running VM. However, Windows Server 2019 Hyper-V and
+earlier versions may provide guests with ACPI tables that indicate
+more CPUs than are actually present in the VM. As is normal, Linux
+treats these additional CPUs as potential hot-add CPUs, and reports
+them as such even though Hyper-V will never actually hot-add them.
+Starting in Windows Server 2022 Hyper-V, the ACPI tables reflect
+only the CPUs actually present in the VM, so Linux does not report
+any hot-add CPUs.
+
+A Linux guest CPU may be taken offline using the normal Linux
+mechanisms, provided no VMbus channel interrupts are assigned to
+the CPU. See the section on VMbus Interrupts for more details
+on how VMbus channel interrupts can be re-assigned to permit
+taking a CPU offline.
+
+32-bit and 64-bit
+-----------------
+On x86/x64, Hyper-V supports 32-bit and 64-bit guests, and Linux
+will build and run in either version. While the 32-bit version is
+expected to work, it is used rarely and may suffer from undetected
+regressions.
+
+On arm64, Hyper-V supports only 64-bit guests.
+
+Endian-ness
+-----------
+All communication between Hyper-V and guest VMs uses Little-Endian
+format on both x86/x64 and arm64. Big-endian format on arm64 is not
+supported by Hyper-V, and Linux code does not use endian-ness macros
+when accessing data shared with Hyper-V.
+
+Versioning
+----------
+Current Linux kernels operate correctly with older versions of
+Hyper-V back to Windows Server 2012 Hyper-V. Support for running
+on the original Hyper-V release in Windows Server 2008/2008 R2
+has been removed.
+
+A Linux guest on Hyper-V outputs in dmesg the version of Hyper-V
+it is running on. This version is in the form of a Windows build
+number and is for display purposes only. Linux code does not
+test this version number at runtime to determine available features
+and functionality. Hyper-V indicates feature/function availability
+via flags in synthetic MSRs that Hyper-V provides to the guest,
+and the guest code tests these flags.
+
+VMbus has its own protocol version that is negotiated during the
+initial VMbus connection from the guest to Hyper-V. This version
+number is also output to dmesg during boot. This version number
+is checked in a few places in the code to determine if specific
+functionality is present.
+
+Furthermore, each synthetic device on VMbus also has a protocol
+version that is separate from the VMbus protocol version. Device
+drivers for these synthetic devices typically negotiate the device
+protocol version, and may test that protocol version to determine
+if specific device functionality is present.
+
+Code Packaging
+--------------
+Hyper-V related code appears in the Linux kernel code tree in three
+main areas:
+
+1. drivers/hv
+
+2. arch/x86/hyperv and arch/arm64/hyperv
+
+3. individual device driver areas such as drivers/scsi, drivers/net,
+ drivers/clocksource, etc.
+
+A few miscellaneous files appear elsewhere. See the full list under
+"Hyper-V/Azure CORE AND DRIVERS" and "DRM DRIVER FOR HYPERV
+SYNTHETIC VIDEO DEVICE" in the MAINTAINERS file.
+
+The code in #1 and #2 is built only when CONFIG_HYPERV is set.
+Similarly, the code for most Hyper-V related drivers is built only
+when CONFIG_HYPERV is set.
+
+Most Hyper-V related code in #1 and #3 can be built as a module.
+The architecture specific code in #2 must be built-in. Also,
+drivers/hv/hv_common.c is low-level code that is common across
+architectures and must be built-in.
diff --git a/Documentation/virt/hyperv/vmbus.rst b/Documentation/virt/hyperv/vmbus.rst
new file mode 100644
index 000000000000..d2012d9022c5
--- /dev/null
+++ b/Documentation/virt/hyperv/vmbus.rst
@@ -0,0 +1,303 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+VMbus
+=====
+VMbus is a software construct provided by Hyper-V to guest VMs. It
+consists of a control path and common facilities used by synthetic
+devices that Hyper-V presents to guest VMs. The control path is
+used to offer synthetic devices to the guest VM and, in some cases,
+to rescind those devices. The common facilities include software
+channels for communicating between the device driver in the guest VM
+and the synthetic device implementation that is part of Hyper-V, and
+signaling primitives to allow Hyper-V and the guest to interrupt
+each other.
+
+VMbus is modeled in Linux as a bus, with the expected /sys/bus/vmbus
+entry in a running Linux guest. The VMbus driver (drivers/hv/vmbus_drv.c)
+establishes the VMbus control path with the Hyper-V host, then
+registers itself as a Linux bus driver. It implements the standard
+bus functions for adding and removing devices to/from the bus.
+
+Most synthetic devices offered by Hyper-V have a corresponding Linux
+device driver. These devices include:
+
+* SCSI controller
+* NIC
+* Graphics frame buffer
+* Keyboard
+* Mouse
+* PCI device pass-thru
+* Heartbeat
+* Time Sync
+* Shutdown
+* Memory balloon
+* Key/Value Pair (KVP) exchange with Hyper-V
+* Hyper-V online backup (a.k.a. VSS)
+
+Guest VMs may have multiple instances of the synthetic SCSI
+controller, synthetic NIC, and PCI pass-thru devices. Other
+synthetic devices are limited to a single instance per VM. Not
+listed above are a small number of synthetic devices offered by
+Hyper-V that are used only by Windows guests and for which Linux
+does not have a driver.
+
+Hyper-V uses the terms "VSP" and "VSC" in describing synthetic
+devices. "VSP" refers to the Hyper-V code that implements a
+particular synthetic device, while "VSC" refers to the driver for
+the device in the guest VM. For example, the Linux driver for the
+synthetic NIC is referred to as "netvsc" and the Linux driver for
+the synthetic SCSI controller is "storvsc". These drivers contain
+functions with names like "storvsc_connect_to_vsp".
+
+VMbus channels
+--------------
+An instance of a synthetic device uses VMbus channels to communicate
+between the VSP and the VSC. Channels are bi-directional and used
+for passing messages. Most synthetic devices use a single channel,
+but the synthetic SCSI controller and synthetic NIC may use multiple
+channels to achieve higher performance and greater parallelism.
+
+Each channel consists of two ring buffers. These are classic ring
+buffers from a university data structures textbook. If the read
+and writes pointers are equal, the ring buffer is considered to be
+empty, so a full ring buffer always has at least one byte unused.
+The "in" ring buffer is for messages from the Hyper-V host to the
+guest, and the "out" ring buffer is for messages from the guest to
+the Hyper-V host. In Linux, the "in" and "out" designations are as
+viewed by the guest side. The ring buffers are memory that is
+shared between the guest and the host, and they follow the standard
+paradigm where the memory is allocated by the guest, with the list
+of GPAs that make up the ring buffer communicated to the host. Each
+ring buffer consists of a header page (4 Kbytes) with the read and
+write indices and some control flags, followed by the memory for the
+actual ring. The size of the ring is determined by the VSC in the
+guest and is specific to each synthetic device. The list of GPAs
+making up the ring is communicated to the Hyper-V host over the
+VMbus control path as a GPA Descriptor List (GPADL). See function
+vmbus_establish_gpadl().
+
+Each ring buffer is mapped into contiguous Linux kernel virtual
+space in three parts: 1) the 4 Kbyte header page, 2) the memory
+that makes up the ring itself, and 3) a second mapping of the memory
+that makes up the ring itself. Because (2) and (3) are contiguous
+in kernel virtual space, the code that copies data to and from the
+ring buffer need not be concerned with ring buffer wrap-around.
+Once a copy operation has completed, the read or write index may
+need to be reset to point back into the first mapping, but the
+actual data copy does not need to be broken into two parts. This
+approach also allows complex data structures to be easily accessed
+directly in the ring without handling wrap-around.
+
+On arm64 with page sizes > 4 Kbytes, the header page must still be
+passed to Hyper-V as a 4 Kbyte area. But the memory for the actual
+ring must be aligned to PAGE_SIZE and have a size that is a multiple
+of PAGE_SIZE so that the duplicate mapping trick can be done. Hence
+a portion of the header page is unused and not communicated to
+Hyper-V. This case is handled by vmbus_establish_gpadl().
+
+Hyper-V enforces a limit on the aggregate amount of guest memory
+that can be shared with the host via GPADLs. This limit ensures
+that a rogue guest can't force the consumption of excessive host
+resources. For Windows Server 2019 and later, this limit is
+approximately 1280 Mbytes. For versions prior to Windows Server
+2019, the limit is approximately 384 Mbytes.
+
+VMbus messages
+--------------
+All VMbus messages have a standard header that includes the message
+length, the offset of the message payload, some flags, and a
+transactionID. The portion of the message after the header is
+unique to each VSP/VSC pair.
+
+Messages follow one of two patterns:
+
+* Unidirectional: Either side sends a message and does not
+ expect a response message
+* Request/response: One side (usually the guest) sends a message
+ and expects a response
+
+The transactionID (a.k.a. "requestID") is for matching requests &
+responses. Some synthetic devices allow multiple requests to be in-
+flight simultaneously, so the guest specifies a transactionID when
+sending a request. Hyper-V sends back the same transactionID in the
+matching response.
+
+Messages passed between the VSP and VSC are control messages. For
+example, a message sent from the storvsc driver might be "execute
+this SCSI command". If a message also implies some data transfer
+between the guest and the Hyper-V host, the actual data to be
+transferred may be embedded with the control message, or it may be
+specified as a separate data buffer that the Hyper-V host will
+access as a DMA operation. The former case is used when the size of
+the data is small and the cost of copying the data to and from the
+ring buffer is minimal. For example, time sync messages from the
+Hyper-V host to the guest contain the actual time value. When the
+data is larger, a separate data buffer is used. In this case, the
+control message contains a list of GPAs that describe the data
+buffer. For example, the storvsc driver uses this approach to
+specify the data buffers to/from which disk I/O is done.
+
+Three functions exist to send VMbus messages:
+
+1. vmbus_sendpacket(): Control-only messages and messages with
+ embedded data -- no GPAs
+2. vmbus_sendpacket_pagebuffer(): Message with list of GPAs
+ identifying data to transfer. An offset and length is
+ associated with each GPA so that multiple discontinuous areas
+ of guest memory can be targeted.
+3. vmbus_sendpacket_mpb_desc(): Message with list of GPAs
+ identifying data to transfer. A single offset and length is
+ associated with a list of GPAs. The GPAs must describe a
+ single logical area of guest memory to be targeted.
+
+Historically, Linux guests have trusted Hyper-V to send well-formed
+and valid messages, and Linux drivers for synthetic devices did not
+fully validate messages. With the introduction of processor
+technologies that fully encrypt guest memory and that allow the
+guest to not trust the hypervisor (AMD SNP-SEV, Intel TDX), trusting
+the Hyper-V host is no longer a valid assumption. The drivers for
+VMbus synthetic devices are being updated to fully validate any
+values read from memory that is shared with Hyper-V, which includes
+messages from VMbus devices. To facilitate such validation,
+messages read by the guest from the "in" ring buffer are copied to a
+temporary buffer that is not shared with Hyper-V. Validation is
+performed in this temporary buffer without the risk of Hyper-V
+maliciously modifying the message after it is validated but before
+it is used.
+
+VMbus interrupts
+----------------
+VMbus provides a mechanism for the guest to interrupt the host when
+the guest has queued new messages in a ring buffer. The host
+expects that the guest will send an interrupt only when an "out"
+ring buffer transitions from empty to non-empty. If the guest sends
+interrupts at other times, the host deems such interrupts to be
+unnecessary. If a guest sends an excessive number of unnecessary
+interrupts, the host may throttle that guest by suspending its
+execution for a few seconds to prevent a denial-of-service attack.
+
+Similarly, the host will interrupt the guest when it sends a new
+message on the VMbus control path, or when a VMbus channel "in" ring
+buffer transitions from empty to non-empty. Each CPU in the guest
+may receive VMbus interrupts, so they are best modeled as per-CPU
+interrupts in Linux. This model works well on arm64 where a single
+per-CPU IRQ is allocated for VMbus. Since x86/x64 lacks support for
+per-CPU IRQs, an x86 interrupt vector is statically allocated (see
+HYPERVISOR_CALLBACK_VECTOR) across all CPUs and explicitly coded to
+call the VMbus interrupt service routine. These interrupts are
+visible in /proc/interrupts on the "HYP" line.
+
+The guest CPU that a VMbus channel will interrupt is selected by the
+guest when the channel is created, and the host is informed of that
+selection. VMbus devices are broadly grouped into two categories:
+
+1. "Slow" devices that need only one VMbus channel. The devices
+ (such as keyboard, mouse, heartbeat, and timesync) generate
+ relatively few interrupts. Their VMbus channels are all
+ assigned to interrupt the VMBUS_CONNECT_CPU, which is always
+ CPU 0.
+
+2. "High speed" devices that may use multiple VMbus channels for
+ higher parallelism and performance. These devices include the
+ synthetic SCSI controller and synthetic NIC. Their VMbus
+ channels interrupts are assigned to CPUs that are spread out
+ among the available CPUs in the VM so that interrupts on
+ multiple channels can be processed in parallel.
+
+The assignment of VMbus channel interrupts to CPUs is done in the
+function init_vp_index(). This assignment is done outside of the
+normal Linux interrupt affinity mechanism, so the interrupts are
+neither "unmanaged" nor "managed" interrupts.
+
+The CPU that a VMbus channel will interrupt can be seen in
+/sys/bus/vmbus/devices/<deviceGUID>/ channels/<channelRelID>/cpu.
+When running on later versions of Hyper-V, the CPU can be changed
+by writing a new value to this sysfs entry. Because the interrupt
+assignment is done outside of the normal Linux affinity mechanism,
+there are no entries in /proc/irq corresponding to individual
+VMbus channel interrupts.
+
+An online CPU in a Linux guest may not be taken offline if it has
+VMbus channel interrupts assigned to it. Any such channel
+interrupts must first be manually reassigned to another CPU as
+described above. When no channel interrupts are assigned to the
+CPU, it can be taken offline.
+
+When a guest CPU receives a VMbus interrupt from the host, the
+function vmbus_isr() handles the interrupt. It first checks for
+channel interrupts by calling vmbus_chan_sched(), which looks at a
+bitmap setup by the host to determine which channels have pending
+interrupts on this CPU. If multiple channels have pending
+interrupts for this CPU, they are processed sequentially. When all
+channel interrupts have been processed, vmbus_isr() checks for and
+processes any message received on the VMbus control path.
+
+The VMbus channel interrupt handling code is designed to work
+correctly even if an interrupt is received on a CPU other than the
+CPU assigned to the channel. Specifically, the code does not use
+CPU-based exclusion for correctness. In normal operation, Hyper-V
+will interrupt the assigned CPU. But when the CPU assigned to a
+channel is being changed via sysfs, the guest doesn't know exactly
+when Hyper-V will make the transition. The code must work correctly
+even if there is a time lag before Hyper-V starts interrupting the
+new CPU. See comments in target_cpu_store().
+
+VMbus device creation/deletion
+------------------------------
+Hyper-V and the Linux guest have a separate message-passing path
+that is used for synthetic device creation and deletion. This
+path does not use a VMbus channel. See vmbus_post_msg() and
+vmbus_on_msg_dpc().
+
+The first step is for the guest to connect to the generic
+Hyper-V VMbus mechanism. As part of establishing this connection,
+the guest and Hyper-V agree on a VMbus protocol version they will
+use. This negotiation allows newer Linux kernels to run on older
+Hyper-V versions, and vice versa.
+
+The guest then tells Hyper-V to "send offers". Hyper-V sends an
+offer message to the guest for each synthetic device that the VM
+is configured to have. Each VMbus device type has a fixed GUID
+known as the "class ID", and each VMbus device instance is also
+identified by a GUID. The offer message from Hyper-V contains
+both GUIDs to uniquely (within the VM) identify the device.
+There is one offer message for each device instance, so a VM with
+two synthetic NICs will get two offers messages with the NIC
+class ID. The ordering of offer messages can vary from boot-to-boot
+and must not be assumed to be consistent in Linux code. Offer
+messages may also arrive long after Linux has initially booted
+because Hyper-V supports adding devices, such as synthetic NICs,
+to running VMs. A new offer message is processed by
+vmbus_process_offer(), which indirectly invokes vmbus_add_channel_work().
+
+Upon receipt of an offer message, the guest identifies the device
+type based on the class ID, and invokes the correct driver to set up
+the device. Driver/device matching is performed using the standard
+Linux mechanism.
+
+The device driver probe function opens the primary VMbus channel to
+the corresponding VSP. It allocates guest memory for the channel
+ring buffers and shares the ring buffer with the Hyper-V host by
+giving the host a list of GPAs for the ring buffer memory. See
+vmbus_establish_gpadl().
+
+Once the ring buffer is set up, the device driver and VSP exchange
+setup messages via the primary channel. These messages may include
+negotiating the device protocol version to be used between the Linux
+VSC and the VSP on the Hyper-V host. The setup messages may also
+include creating additional VMbus channels, which are somewhat
+mis-named as "sub-channels" since they are functionally
+equivalent to the primary channel once they are created.
+
+Finally, the device driver may create entries in /dev as with
+any device driver.
+
+The Hyper-V host can send a "rescind" message to the guest to
+remove a device that was previously offered. Linux drivers must
+handle such a rescind message at any time. Rescinding a device
+invokes the device driver "remove" function to cleanly shut
+down the device and remove it. Once a synthetic device is
+rescinded, neither Hyper-V nor Linux retains any state about
+its previous existence. Such a device might be re-added later,
+in which case it is treated as an entirely new device. See
+vmbus_onoffer_rescind().
diff --git a/Documentation/virt/index.rst b/Documentation/virt/index.rst
index 492f0920b988..2f1cffa87b1b 100644
--- a/Documentation/virt/index.rst
+++ b/Documentation/virt/index.rst
@@ -14,6 +14,7 @@ Linux Virtualization Support
ne_overview
acrn/index
coco/sev-guest
+ hyperv/index
.. only:: html and subproject
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 6e090fb96a0e..236a797be71c 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -1150,6 +1150,10 @@ The following bits are defined in the flags field:
fields contain a valid state. This bit will be set whenever
KVM_CAP_EXCEPTION_PAYLOAD is enabled.
+- KVM_VCPUEVENT_VALID_TRIPLE_FAULT may be set to signal that the
+ triple_fault_pending field contains a valid state. This bit will
+ be set whenever KVM_CAP_X86_TRIPLE_FAULT_EVENT is enabled.
+
ARM64:
^^^^^^
@@ -1245,6 +1249,10 @@ can be set in the flags field to signal that the
exception_has_payload, exception_payload, and exception.pending fields
contain a valid state and shall be written into the VCPU.
+If KVM_CAP_X86_TRIPLE_FAULT_EVENT is enabled, KVM_VCPUEVENT_VALID_TRIPLE_FAULT
+can be set in flags field to signal that the triple_fault field contains
+a valid state and shall be written into the VCPU.
+
ARM64:
^^^^^^
@@ -2998,7 +3006,9 @@ KVM_CREATE_PIT2. The state is returned in the following structure::
Valid flags are::
/* disable PIT in HPET legacy mode */
- #define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001
+ #define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001
+ /* speaker port data bit enabled */
+ #define KVM_PIT_FLAGS_SPEAKER_DATA_ON 0x00000002
This IOCTL replaces the obsolete KVM_GET_PIT.
@@ -4064,7 +4074,7 @@ Queues an SMI on the thread's vcpu.
4.97 KVM_X86_SET_MSR_FILTER
----------------------------
-:Capability: KVM_X86_SET_MSR_FILTER
+:Capability: KVM_CAP_X86_MSR_FILTER
:Architectures: x86
:Type: vm ioctl
:Parameters: struct kvm_msr_filter
@@ -4163,8 +4173,10 @@ If an MSR access is not permitted through the filtering, it generates a
allows user space to deflect and potentially handle various MSR accesses
into user space.
-If a vCPU is in running state while this ioctl is invoked, the vCPU may
-experience inconsistent filtering behavior on MSR accesses.
+Note, invoking this ioctl while a vCPU is running is inherently racy. However,
+KVM does guarantee that vCPUs will see either the previous filter or the new
+filter, e.g. MSRs with identical settings in both the old and new filter will
+have deterministic behavior.
4.98 KVM_CREATE_SPAPR_TCE_64
----------------------------
@@ -4667,7 +4679,7 @@ encrypted VMs.
Currently, this ioctl is used for issuing Secure Encrypted Virtualization
(SEV) commands on AMD Processors. The SEV commands are defined in
-Documentation/virt/kvm/amd-memory-encryption.rst.
+Documentation/virt/kvm/x86/amd-memory-encryption.rst.
4.111 KVM_MEMORY_ENCRYPT_REG_REGION
-----------------------------------
@@ -5127,7 +5139,15 @@ into ESA mode. This reset is a superset of the initial reset.
__u32 reserved[3];
};
-cmd values:
+**Ultravisor return codes**
+The Ultravisor return (reason) codes are provided by the kernel if a
+Ultravisor call has been executed to achieve the results expected by
+the command. Therefore they are independent of the IOCTL return
+code. If KVM changes `rc`, its value will always be greater than 0
+hence setting it to 0 before issuing a PV command is advised to be
+able to detect a change of `rc`.
+
+**cmd values:**
KVM_PV_ENABLE
Allocate memory and register the VM with the Ultravisor, thereby
@@ -5143,7 +5163,6 @@ KVM_PV_ENABLE
===== =============================
KVM_PV_DISABLE
-
Deregister the VM from the Ultravisor and reclaim the memory that
had been donated to the Ultravisor, making it usable by the kernel
again. All registered VCPUs are converted back to non-protected
@@ -5160,109 +5179,117 @@ KVM_PV_VM_VERIFY
Verify the integrity of the unpacked image. Only if this succeeds,
KVM is allowed to start protected VCPUs.
-4.126 KVM_X86_SET_MSR_FILTER
-----------------------------
+KVM_PV_INFO
+ :Capability: KVM_CAP_S390_PROTECTED_DUMP
-:Capability: KVM_CAP_X86_MSR_FILTER
-:Architectures: x86
-:Type: vm ioctl
-:Parameters: struct kvm_msr_filter
-:Returns: 0 on success, < 0 on error
+ Presents an API that provides Ultravisor related data to userspace
+ via subcommands. len_max is the size of the user space buffer,
+ len_written is KVM's indication of how much bytes of that buffer
+ were actually written to. len_written can be used to determine the
+ valid fields if more response fields are added in the future.
-::
+ ::
- struct kvm_msr_filter_range {
- #define KVM_MSR_FILTER_READ (1 << 0)
- #define KVM_MSR_FILTER_WRITE (1 << 1)
- __u32 flags;
- __u32 nmsrs; /* number of msrs in bitmap */
- __u32 base; /* MSR index the bitmap starts at */
- __u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */
- };
+ enum pv_cmd_info_id {
+ KVM_PV_INFO_VM,
+ KVM_PV_INFO_DUMP,
+ };
- #define KVM_MSR_FILTER_MAX_RANGES 16
- struct kvm_msr_filter {
- #define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)
- #define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0)
- __u32 flags;
- struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES];
- };
+ struct kvm_s390_pv_info_header {
+ __u32 id;
+ __u32 len_max;
+ __u32 len_written;
+ __u32 reserved;
+ };
-flags values for ``struct kvm_msr_filter_range``:
+ struct kvm_s390_pv_info {
+ struct kvm_s390_pv_info_header header;
+ struct kvm_s390_pv_info_dump dump;
+ struct kvm_s390_pv_info_vm vm;
+ };
-``KVM_MSR_FILTER_READ``
+**subcommands:**
- Filter read accesses to MSRs using the given bitmap. A 0 in the bitmap
- indicates that a read should immediately fail, while a 1 indicates that
- a read for a particular MSR should be handled regardless of the default
- filter action.
+ KVM_PV_INFO_VM
+ This subcommand provides basic Ultravisor information for PV
+ hosts. These values are likely also exported as files in the sysfs
+ firmware UV query interface but they are more easily available to
+ programs in this API.
-``KVM_MSR_FILTER_WRITE``
+ The installed calls and feature_indication members provide the
+ installed UV calls and the UV's other feature indications.
- Filter write accesses to MSRs using the given bitmap. A 0 in the bitmap
- indicates that a write should immediately fail, while a 1 indicates that
- a write for a particular MSR should be handled regardless of the default
- filter action.
+ The max_* members provide information about the maximum number of PV
+ vcpus, PV guests and PV guest memory size.
-``KVM_MSR_FILTER_READ | KVM_MSR_FILTER_WRITE``
+ ::
- Filter both read and write accesses to MSRs using the given bitmap. A 0
- in the bitmap indicates that both reads and writes should immediately fail,
- while a 1 indicates that reads and writes for a particular MSR are not
- filtered by this range.
+ struct kvm_s390_pv_info_vm {
+ __u64 inst_calls_list[4];
+ __u64 max_cpus;
+ __u64 max_guests;
+ __u64 max_guest_addr;
+ __u64 feature_indication;
+ };
-flags values for ``struct kvm_msr_filter``:
-``KVM_MSR_FILTER_DEFAULT_ALLOW``
+ KVM_PV_INFO_DUMP
+ This subcommand provides information related to dumping PV guests.
- If no filter range matches an MSR index that is getting accessed, KVM will
- fall back to allowing access to the MSR.
+ ::
-``KVM_MSR_FILTER_DEFAULT_DENY``
+ struct kvm_s390_pv_info_dump {
+ __u64 dump_cpu_buffer_len;
+ __u64 dump_config_mem_buffer_per_1m;
+ __u64 dump_config_finalize_len;
+ };
- If no filter range matches an MSR index that is getting accessed, KVM will
- fall back to rejecting access to the MSR. In this mode, all MSRs that should
- be processed by KVM need to explicitly be marked as allowed in the bitmaps.
+KVM_PV_DUMP
+ :Capability: KVM_CAP_S390_PROTECTED_DUMP
-This ioctl allows user space to define up to 16 bitmaps of MSR ranges to
-specify whether a certain MSR access should be explicitly filtered for or not.
+ Presents an API that provides calls which facilitate dumping a
+ protected VM.
-If this ioctl has never been invoked, MSR accesses are not guarded and the
-default KVM in-kernel emulation behavior is fully preserved.
+ ::
-Calling this ioctl with an empty set of ranges (all nmsrs == 0) disables MSR
-filtering. In that mode, ``KVM_MSR_FILTER_DEFAULT_DENY`` is invalid and causes
-an error.
+ struct kvm_s390_pv_dmp {
+ __u64 subcmd;
+ __u64 buff_addr;
+ __u64 buff_len;
+ __u64 gaddr; /* For dump storage state */
+ };
-As soon as the filtering is in place, every MSR access is processed through
-the filtering except for accesses to the x2APIC MSRs (from 0x800 to 0x8ff);
-x2APIC MSRs are always allowed, independent of the ``default_allow`` setting,
-and their behavior depends on the ``X2APIC_ENABLE`` bit of the APIC base
-register.
+ **subcommands:**
-If a bit is within one of the defined ranges, read and write accesses are
-guarded by the bitmap's value for the MSR index if the kind of access
-is included in the ``struct kvm_msr_filter_range`` flags. If no range
-cover this particular access, the behavior is determined by the flags
-field in the kvm_msr_filter struct: ``KVM_MSR_FILTER_DEFAULT_ALLOW``
-and ``KVM_MSR_FILTER_DEFAULT_DENY``.
+ KVM_PV_DUMP_INIT
+ Initializes the dump process of a protected VM. If this call does
+ not succeed all other subcommands will fail with -EINVAL. This
+ subcommand will return -EINVAL if a dump process has not yet been
+ completed.
-Each bitmap range specifies a range of MSRs to potentially allow access on.
-The range goes from MSR index [base .. base+nmsrs]. The flags field
-indicates whether reads, writes or both reads and writes are filtered
-by setting a 1 bit in the bitmap for the corresponding MSR index.
+ Not all PV vms can be dumped, the owner needs to set `dump
+ allowed` PCF bit 34 in the SE header to allow dumping.
-If an MSR access is not permitted through the filtering, it generates a
-#GP inside the guest. When combined with KVM_CAP_X86_USER_SPACE_MSR, that
-allows user space to deflect and potentially handle various MSR accesses
-into user space.
+ KVM_PV_DUMP_CONFIG_STOR_STATE
+ Stores `buff_len` bytes of tweak component values starting with
+ the 1MB block specified by the absolute guest address
+ (`gaddr`). `buff_len` needs to be `conf_dump_storage_state_len`
+ aligned and at least >= the `conf_dump_storage_state_len` value
+ provided by the dump uv_info data. buff_user might be written to
+ even if an error rc is returned. For instance if we encounter a
+ fault after writing the first page of data.
-Note, invoking this ioctl with a vCPU is running is inherently racy. However,
-KVM does guarantee that vCPUs will see either the previous filter or the new
-filter, e.g. MSRs with identical settings in both the old and new filter will
-have deterministic behavior.
+ KVM_PV_DUMP_COMPLETE
+ If the subcommand succeeds it completes the dump process and lets
+ KVM_PV_DUMP_INIT be called again.
-4.127 KVM_XEN_HVM_SET_ATTR
+ On success `conf_dump_finalize_len` bytes of completion data will be
+ stored to the `buff_addr`. The completion data contains a key
+ derivation seed, IV, tweak nonce and encryption keys as well as an
+ authentication tag all of which are needed to decrypt the dump at a
+ later time.
+
+4.126 KVM_XEN_HVM_SET_ATTR
--------------------------
:Capability: KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_SHARED_INFO
@@ -5658,7 +5685,7 @@ by a string of size ``name_size``.
#define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
#define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
#define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
- #define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_CYCLES
+ #define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
#define KVM_STATS_BASE_SHIFT 8
#define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
@@ -5811,6 +5838,78 @@ of CPUID leaf 0xD on the host.
This ioctl injects an event channel interrupt directly to the guest vCPU.
+4.136 KVM_S390_PV_CPU_COMMAND
+-----------------------------
+
+:Capability: KVM_CAP_S390_PROTECTED_DUMP
+:Architectures: s390
+:Type: vcpu ioctl
+:Parameters: none
+:Returns: 0 on success, < 0 on error
+
+This ioctl closely mirrors `KVM_S390_PV_COMMAND` but handles requests
+for vcpus. It re-uses the kvm_s390_pv_dmp struct and hence also shares
+the command ids.
+
+**command:**
+
+KVM_PV_DUMP
+ Presents an API that provides calls which facilitate dumping a vcpu
+ of a protected VM.
+
+**subcommand:**
+
+KVM_PV_DUMP_CPU
+ Provides encrypted dump data like register values.
+ The length of the returned data is provided by uv_info.guest_cpu_stor_len.
+
+4.137 KVM_S390_ZPCI_OP
+----------------------
+
+:Capability: KVM_CAP_S390_ZPCI_OP
+:Architectures: s390
+:Type: vm ioctl
+:Parameters: struct kvm_s390_zpci_op (in)
+:Returns: 0 on success, <0 on error
+
+Used to manage hardware-assisted virtualization features for zPCI devices.
+
+Parameters are specified via the following structure::
+
+ struct kvm_s390_zpci_op {
+ /* in */
+ __u32 fh; /* target device */
+ __u8 op; /* operation to perform */
+ __u8 pad[3];
+ union {
+ /* for KVM_S390_ZPCIOP_REG_AEN */
+ struct {
+ __u64 ibv; /* Guest addr of interrupt bit vector */
+ __u64 sb; /* Guest addr of summary bit */
+ __u32 flags;
+ __u32 noi; /* Number of interrupts */
+ __u8 isc; /* Guest interrupt subclass */
+ __u8 sbo; /* Offset of guest summary bit vector */
+ __u16 pad;
+ } reg_aen;
+ __u64 reserved[8];
+ } u;
+ };
+
+The type of operation is specified in the "op" field.
+KVM_S390_ZPCIOP_REG_AEN is used to register the VM for adapter event
+notification interpretation, which will allow firmware delivery of adapter
+events directly to the vm, with KVM providing a backup delivery mechanism;
+KVM_S390_ZPCIOP_DEREG_AEN is used to subsequently disable interpretation of
+adapter event notifications.
+
+The target zPCI function must also be specified via the "fh" field. For the
+KVM_S390_ZPCIOP_REG_AEN operation, additional information to establish firmware
+delivery must be provided via the "reg_aen" struct.
+
+The "pad" and "reserved" fields may be used for future extensions and should be
+set to 0s by userspace.
+
5. The kvm_run structure
========================
@@ -6416,6 +6515,26 @@ spec refer, https://github.com/riscv/riscv-sbi-doc.
::
+ /* KVM_EXIT_NOTIFY */
+ struct {
+ #define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
+ __u32 flags;
+ } notify;
+
+Used on x86 systems. When the VM capability KVM_CAP_X86_NOTIFY_VMEXIT is
+enabled, a VM exit generated if no event window occurs in VM non-root mode
+for a specified amount of time. Once KVM_X86_NOTIFY_VMEXIT_USER is set when
+enabling the cap, it would exit to userspace with the exit reason
+KVM_EXIT_NOTIFY for further handling. The "flags" field contains more
+detailed info.
+
+The valid value for 'flags' is:
+
+ - KVM_NOTIFY_CONTEXT_INVALID -- the VM context is corrupted and not valid
+ in VMCS. It would run into unknown result if resume the target VM.
+
+::
+
/* Fix the size of the union. */
char padding[256];
};
@@ -7357,8 +7476,71 @@ The valid bits in cap.args[0] are:
hypercall instructions. Executing the
incorrect hypercall instruction will
generate a #UD within the guest.
+
+KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS By default, KVM emulates MONITOR/MWAIT (if
+ they are intercepted) as NOPs regardless of
+ whether or not MONITOR/MWAIT are supported
+ according to guest CPUID. When this quirk
+ is disabled and KVM_X86_DISABLE_EXITS_MWAIT
+ is not set (MONITOR/MWAIT are intercepted),
+ KVM will inject a #UD on MONITOR/MWAIT if
+ they're unsupported per guest CPUID. Note,
+ KVM will modify MONITOR/MWAIT support in
+ guest CPUID on writes to MISC_ENABLE if
+ KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT is
+ disabled.
=================================== ============================================
+7.32 KVM_CAP_MAX_VCPU_ID
+------------------------
+
+:Architectures: x86
+:Target: VM
+:Parameters: args[0] - maximum APIC ID value set for current VM
+:Returns: 0 on success, -EINVAL if args[0] is beyond KVM_MAX_VCPU_IDS
+ supported in KVM or if it has been set.
+
+This capability allows userspace to specify maximum possible APIC ID
+assigned for current VM session prior to the creation of vCPUs, saving
+memory for data structures indexed by the APIC ID. Userspace is able
+to calculate the limit to APIC ID values from designated
+CPU topology.
+
+The value can be changed only until KVM_ENABLE_CAP is set to a nonzero
+value or until a vCPU is created. Upon creation of the first vCPU,
+if the value was set to zero or KVM_ENABLE_CAP was not invoked, KVM
+uses the return value of KVM_CHECK_EXTENSION(KVM_CAP_MAX_VCPU_ID) as
+the maximum APIC ID.
+
+7.33 KVM_CAP_X86_NOTIFY_VMEXIT
+------------------------------
+
+:Architectures: x86
+:Target: VM
+:Parameters: args[0] is the value of notify window as well as some flags
+:Returns: 0 on success, -EINVAL if args[0] contains invalid flags or notify
+ VM exit is unsupported.
+
+Bits 63:32 of args[0] are used for notify window.
+Bits 31:0 of args[0] are for some flags. Valid bits are::
+
+ #define KVM_X86_NOTIFY_VMEXIT_ENABLED (1 << 0)
+ #define KVM_X86_NOTIFY_VMEXIT_USER (1 << 1)
+
+This capability allows userspace to configure the notify VM exit on/off
+in per-VM scope during VM creation. Notify VM exit is disabled by default.
+When userspace sets KVM_X86_NOTIFY_VMEXIT_ENABLED bit in args[0], VMM will
+enable this feature with the notify window provided, which will generate
+a VM exit if no event window occurs in VM non-root mode for a specified of
+time (notify window).
+
+If KVM_X86_NOTIFY_VMEXIT_USER is set in args[0], upon notify VM exits happen,
+KVM would exit to userspace for handling.
+
+This capability is aimed to mitigate the threat that malicious VMs can
+cause CPU stuck (due to event windows don't open up) and make the CPU
+unavailable to host or other VMs.
+
8. Other capabilities.
======================
@@ -7679,7 +7861,7 @@ architecture-specific interfaces. This capability and the architecture-
specific interfaces must be consistent, i.e. if one says the feature
is supported, than the other should as well and vice versa. For arm64
see Documentation/virt/kvm/devices/vcpu.rst "KVM_ARM_VCPU_PVTIME_CTRL".
-For x86 see Documentation/virt/kvm/msr.rst "MSR_KVM_STEAL_TIME".
+For x86 see Documentation/virt/kvm/x86/msr.rst "MSR_KVM_STEAL_TIME".
8.25 KVM_CAP_S390_DIAG318
-------------------------
@@ -7965,6 +8147,61 @@ should adjust CPUID leaf 0xA to reflect that the PMU is disabled.
When enabled, KVM will exit to userspace with KVM_EXIT_SYSTEM_EVENT of
type KVM_SYSTEM_EVENT_SUSPEND to process the guest suspend request.
+8.37 KVM_CAP_S390_PROTECTED_DUMP
+--------------------------------
+
+:Capability: KVM_CAP_S390_PROTECTED_DUMP
+:Architectures: s390
+:Type: vm
+
+This capability indicates that KVM and the Ultravisor support dumping
+PV guests. The `KVM_PV_DUMP` command is available for the
+`KVM_S390_PV_COMMAND` ioctl and the `KVM_PV_INFO` command provides
+dump related UV data. Also the vcpu ioctl `KVM_S390_PV_CPU_COMMAND` is
+available and supports the `KVM_PV_DUMP_CPU` subcommand.
+
+8.38 KVM_CAP_VM_DISABLE_NX_HUGE_PAGES
+-------------------------------------
+
+:Capability: KVM_CAP_VM_DISABLE_NX_HUGE_PAGES
+:Architectures: x86
+:Type: vm
+:Parameters: arg[0] must be 0.
+:Returns: 0 on success, -EPERM if the userspace process does not
+ have CAP_SYS_BOOT, -EINVAL if args[0] is not 0 or any vCPUs have been
+ created.
+
+This capability disables the NX huge pages mitigation for iTLB MULTIHIT.
+
+The capability has no effect if the nx_huge_pages module parameter is not set.
+
+This capability may only be set before any vCPUs are created.
+
+8.39 KVM_CAP_S390_CPU_TOPOLOGY
+------------------------------
+
+:Capability: KVM_CAP_S390_CPU_TOPOLOGY
+:Architectures: s390
+:Type: vm
+
+This capability indicates that KVM will provide the S390 CPU Topology
+facility which consist of the interpretation of the PTF instruction for
+the function code 2 along with interception and forwarding of both the
+PTF instruction with function codes 0 or 1 and the STSI(15,1,x)
+instruction to the userland hypervisor.
+
+The stfle facility 11, CPU Topology facility, should not be indicated
+to the guest without this capability.
+
+When this capability is present, KVM provides a new attribute group
+on vm fd, KVM_S390_VM_CPU_TOPOLOGY.
+This new attribute allows to get, set or clear the Modified Change
+Topology Report (MTCR) bit of the SCA through the kvm_device_attr
+structure.
+
+When getting the Modified Change Topology Report value, the attr->addr
+must point to a byte where the value will be stored or retrieved from.
+
9. Known KVM API problems
=========================
diff --git a/Documentation/virt/kvm/arm/hyp-abi.rst b/Documentation/virt/kvm/arm/hyp-abi.rst
index 4d43fbc25195..412b276449d3 100644
--- a/Documentation/virt/kvm/arm/hyp-abi.rst
+++ b/Documentation/virt/kvm/arm/hyp-abi.rst
@@ -60,12 +60,13 @@ these functions (see arch/arm{,64}/include/asm/virt.h):
* ::
- x0 = HVC_VHE_RESTART (arm64 only)
+ x0 = HVC_FINALISE_EL2 (arm64 only)
- Attempt to upgrade the kernel's exception level from EL1 to EL2 by enabling
- the VHE mode. This is conditioned by the CPU supporting VHE, the EL2 MMU
- being off, and VHE not being disabled by any other means (command line
- option, for example).
+ Finish configuring EL2 depending on the command-line options,
+ including an attempt to upgrade the kernel's exception level from
+ EL1 to EL2 by enabling the VHE mode. This is conditioned by the CPU
+ supporting VHE, the EL2 MMU being off, and VHE not being disabled by
+ any other means (command line option, for example).
Any other value of r0/x0 triggers a hypervisor-specific handling,
which is not documented here.
diff --git a/Documentation/virt/kvm/s390/index.rst b/Documentation/virt/kvm/s390/index.rst
index 605f488f0cc5..44ec9ab14b59 100644
--- a/Documentation/virt/kvm/s390/index.rst
+++ b/Documentation/virt/kvm/s390/index.rst
@@ -10,3 +10,4 @@ KVM for s390 systems
s390-diag
s390-pv
s390-pv-boot
+ s390-pv-dump
diff --git a/Documentation/virt/kvm/s390/s390-pv-boot.rst b/Documentation/virt/kvm/s390/s390-pv-boot.rst
index 73a6083cb5e7..96c48480a360 100644
--- a/Documentation/virt/kvm/s390/s390-pv-boot.rst
+++ b/Documentation/virt/kvm/s390/s390-pv-boot.rst
@@ -10,7 +10,7 @@ The memory of Protected Virtual Machines (PVMs) is not accessible to
I/O or the hypervisor. In those cases where the hypervisor needs to
access the memory of a PVM, that memory must be made accessible.
Memory made accessible to the hypervisor will be encrypted. See
-Documentation/virt/kvm/s390-pv.rst for details."
+Documentation/virt/kvm/s390/s390-pv.rst for details."
On IPL (boot) a small plaintext bootloader is started, which provides
information about the encrypted components and necessary metadata to
diff --git a/Documentation/virt/kvm/s390/s390-pv-dump.rst b/Documentation/virt/kvm/s390/s390-pv-dump.rst
new file mode 100644
index 000000000000..e542f06048f3
--- /dev/null
+++ b/Documentation/virt/kvm/s390/s390-pv-dump.rst
@@ -0,0 +1,64 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===========================================
+s390 (IBM Z) Protected Virtualization dumps
+===========================================
+
+Summary
+-------
+
+Dumping a VM is an essential tool for debugging problems inside
+it. This is especially true when a protected VM runs into trouble as
+there's no way to access its memory and registers from the outside
+while it's running.
+
+However when dumping a protected VM we need to maintain its
+confidentiality until the dump is in the hands of the VM owner who
+should be the only one capable of analysing it.
+
+The confidentiality of the VM dump is ensured by the Ultravisor who
+provides an interface to KVM over which encrypted CPU and memory data
+can be requested. The encryption is based on the Customer
+Communication Key which is the key that's used to encrypt VM data in a
+way that the customer is able to decrypt.
+
+
+Dump process
+------------
+
+A dump is done in 3 steps:
+
+**Initiation**
+
+This step initializes the dump process, generates cryptographic seeds
+and extracts dump keys with which the VM dump data will be encrypted.
+
+**Data gathering**
+
+Currently there are two types of data that can be gathered from a VM:
+the memory and the vcpu state.
+
+The vcpu state contains all the important registers, general, floating
+point, vector, control and tod/timers of a vcpu. The vcpu dump can
+contain incomplete data if a vcpu is dumped while an instruction is
+emulated with help of the hypervisor. This is indicated by a flag bit
+in the dump data. For the same reason it is very important to not only
+write out the encrypted vcpu state, but also the unencrypted state
+from the hypervisor.
+
+The memory state is further divided into the encrypted memory and its
+metadata comprised of the encryption tweaks and status flags. The
+encrypted memory can simply be read once it has been exported. The
+time of the export does not matter as no re-encryption is
+needed. Memory that has been swapped out and hence was exported can be
+read from the swap and written to the dump target without need for any
+special actions.
+
+The tweaks / status flags for the exported pages need to be requested
+from the Ultravisor.
+
+**Finalization**
+
+The finalization step will provide the data needed to be able to
+decrypt the vcpu and memory data and end the dump process. When this
+step completes successfully a new dump initiation can be started.
diff --git a/Documentation/virt/kvm/vcpu-requests.rst b/Documentation/virt/kvm/vcpu-requests.rst
index 31f62b64e07b..87f04c1fa53d 100644
--- a/Documentation/virt/kvm/vcpu-requests.rst
+++ b/Documentation/virt/kvm/vcpu-requests.rst
@@ -97,7 +97,7 @@ VCPU requests are simply bit indices of the ``vcpu->requests`` bitmap.
This means general bitops, like those documented in [atomic-ops]_ could
also be used, e.g. ::
- clear_bit(KVM_REQ_UNHALT & KVM_REQUEST_MASK, &vcpu->requests);
+ clear_bit(KVM_REQ_UNBLOCK & KVM_REQUEST_MASK, &vcpu->requests);
However, VCPU request users should refrain from doing so, as it would
break the abstraction. The first 8 bits are reserved for architecture
@@ -126,17 +126,6 @@ KVM_REQ_UNBLOCK
or in order to update the interrupt routing and ensure that assigned
devices will wake up the vCPU.
-KVM_REQ_UNHALT
-
- This request may be made from the KVM common function kvm_vcpu_block(),
- which is used to emulate an instruction that causes a CPU to halt until
- one of an architectural specific set of events and/or interrupts is
- received (determined by checking kvm_arch_vcpu_runnable()). When that
- event or interrupt arrives kvm_vcpu_block() makes the request. This is
- in contrast to when kvm_vcpu_block() returns due to any other reason,
- such as a pending signal, which does not indicate the VCPU's halt
- emulation should stop, and therefore does not make the request.
-
KVM_REQ_OUTSIDE_GUEST_MODE
This "request" ensures the target vCPU has exited guest mode prior to the
@@ -297,21 +286,6 @@ architecture dependent. kvm_vcpu_block() calls kvm_arch_vcpu_runnable()
to check if it should awaken. One reason to do so is to provide
architectures a function where requests may be checked if necessary.
-Clearing Requests
------------------
-
-Generally it only makes sense for the receiving VCPU thread to clear a
-request. However, in some circumstances, such as when the requesting
-thread and the receiving VCPU thread are executed serially, such as when
-they are the same thread, or when they are using some form of concurrency
-control to temporarily execute synchronously, then it's possible to know
-that the request may be cleared immediately, rather than waiting for the
-receiving VCPU thread to handle the request in VCPU RUN. The only current
-examples of this are kvm_vcpu_block() calls made by VCPUs to block
-themselves. A possible side-effect of that call is to make the
-KVM_REQ_UNHALT request, which may then be cleared immediately when the
-VCPU returns from the call.
-
References
==========
diff --git a/Documentation/virt/kvm/x86/amd-memory-encryption.rst b/Documentation/virt/kvm/x86/amd-memory-encryption.rst
index 2d307811978c..935aaeb97fe6 100644
--- a/Documentation/virt/kvm/x86/amd-memory-encryption.rst
+++ b/Documentation/virt/kvm/x86/amd-memory-encryption.rst
@@ -89,9 +89,8 @@ context. In a typical workflow, this command should be the first command issued.
The firmware can be initialized either by using its own non-volatile storage or
the OS can manage the NV storage for the firmware using the module parameter
-``init_ex_path``. The file specified by ``init_ex_path`` must exist. To create
-a new NV storage file allocate the file with 32KB bytes of 0xFF as required by
-the SEV spec.
+``init_ex_path``. If the file specified by ``init_ex_path`` does not exist or
+is invalid, the OS will create or override the file with output from PSP.
Returns: 0 on success, -negative on error
diff --git a/Documentation/virt/kvm/x86/hypercalls.rst b/Documentation/virt/kvm/x86/hypercalls.rst
index e56fa8b9cfca..10db7924720f 100644
--- a/Documentation/virt/kvm/x86/hypercalls.rst
+++ b/Documentation/virt/kvm/x86/hypercalls.rst
@@ -22,7 +22,7 @@ S390:
number in R1.
For further information on the S390 diagnose call as supported by KVM,
- refer to Documentation/virt/kvm/s390-diag.rst.
+ refer to Documentation/virt/kvm/s390/s390-diag.rst.
PowerPC:
It uses R3-R10 and hypercall number in R11. R4-R11 are used as output registers.
diff --git a/Documentation/virt/kvm/x86/mmu.rst b/Documentation/virt/kvm/x86/mmu.rst
index 8739120f4300..8364afa228ec 100644
--- a/Documentation/virt/kvm/x86/mmu.rst
+++ b/Documentation/virt/kvm/x86/mmu.rst
@@ -377,7 +377,7 @@ Emulating cr0.wp
================
If tdp is not enabled, the host must keep cr0.wp=1 so page write protection
-works for the guest kernel, not guest guest userspace. When the guest
+works for the guest kernel, not guest userspace. When the guest
cr0.wp=1, this does not present a problem. However when the guest cr0.wp=0,
we cannot map the permissions for gpte.u=1, gpte.w=0 to any spte (the
semantics require allowing any guest kernel access plus user read access).
diff --git a/Documentation/virt/uml/user_mode_linux_howto_v2.rst b/Documentation/virt/uml/user_mode_linux_howto_v2.rst
index 863f67b72c05..af2a97429692 100644
--- a/Documentation/virt/uml/user_mode_linux_howto_v2.rst
+++ b/Documentation/virt/uml/user_mode_linux_howto_v2.rst
@@ -322,7 +322,7 @@ Shared Options
* ``v6=[0,1]`` to specify if a v6 connection is desired for all
transports which operate over IP. Additionally, for transports that
have some differences in the way they operate over v4 and v6 (for example
- EoL2TPv3), sets the correct mode of operation. In the absense of this
+ EoL2TPv3), sets the correct mode of operation. In the absence of this
option, the socket type is determined based on what do the src and dst
arguments resolve/parse to.
diff --git a/Documentation/vm/.gitignore b/Documentation/vm/.gitignore
deleted file mode 100644
index bc74f5643008..000000000000
--- a/Documentation/vm/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-page-types
-slabinfo
diff --git a/Documentation/w1/masters/ds2490.rst b/Documentation/w1/masters/ds2490.rst
index 7e5b50f9c0f5..842e7ae80424 100644
--- a/Documentation/w1/masters/ds2490.rst
+++ b/Documentation/w1/masters/ds2490.rst
@@ -52,7 +52,7 @@ Notes and limitations.
clear the entire bulk in buffer. It would be possible to read the
maximum buffer size to not run into this error condition, only extra
bytes in the buffer is a logic error in the driver. The code should
- should match reads and writes as well as data sizes. Reads and
+ match reads and writes as well as data sizes. Reads and
writes are serialized and the status verifies that the chip is idle
(and data is available) before the read is executed, so it should
not happen.
diff --git a/Documentation/w1/w1-generic.rst b/Documentation/w1/w1-generic.rst
index da4e8b4e9b01..99255b6d0e53 100644
--- a/Documentation/w1/w1-generic.rst
+++ b/Documentation/w1/w1-generic.rst
@@ -113,7 +113,7 @@ generally only make sense when searching is disabled, as a search will
redetect manually removed devices that are present and timeout manually
added devices that aren't on the bus.
-Bus searches occur at an interval, specified as a summ of timeout and
+Bus searches occur at an interval, specified as a sum of timeout and
timeout_us module parameters (either of which may be 0) for as long as
w1_master_search remains greater than 0 or is -1. Each search attempt
decrements w1_master_search by 1 (down to 0) and increments
diff --git a/Documentation/watchdog/watchdog-parameters.rst b/Documentation/watchdog/watchdog-parameters.rst
index 223c99361a30..29153eed6689 100644
--- a/Documentation/watchdog/watchdog-parameters.rst
+++ b/Documentation/watchdog/watchdog-parameters.rst
@@ -425,6 +425,18 @@ pnx833x_wdt:
-------------------------------------------------
+pseries-wdt:
+ action:
+ Action taken when watchdog expires: 0 (power off), 1 (restart),
+ 2 (dump and restart). (default=1)
+ timeout:
+ Initial watchdog timeout in seconds. (default=60)
+ nowayout:
+ Watchdog cannot be stopped once started.
+ (default=kernel config parameter)
+
+-------------------------------------------------
+
rc32434_wdt:
timeout:
Watchdog timeout value, in seconds (default=20)
diff --git a/Documentation/x86/entry_64.rst b/Documentation/x86/entry_64.rst
index e433e08f7018..0afdce3c06f4 100644
--- a/Documentation/x86/entry_64.rst
+++ b/Documentation/x86/entry_64.rst
@@ -33,8 +33,8 @@ Some of these entries are:
- interrupt: An array of entries. Every IDT vector that doesn't
explicitly point somewhere else gets set to the corresponding
value in interrupts. These point to a whole array of
- magically-generated functions that make their way to do_IRQ with
- the interrupt number as a parameter.
+ magically-generated functions that make their way to common_interrupt()
+ with the interrupt number as a parameter.
- APIC interrupts: Various special-purpose interrupts for things
like TLB shootdown.
diff --git a/Documentation/x86/microcode.rst b/Documentation/x86/microcode.rst
index a320d37982ed..b627c6f36bcf 100644
--- a/Documentation/x86/microcode.rst
+++ b/Documentation/x86/microcode.rst
@@ -6,6 +6,7 @@ The Linux Microcode Loader
:Authors: - Fenghua Yu <fenghua.yu@intel.com>
- Borislav Petkov <bp@suse.de>
+ - Ashok Raj <ashok.raj@intel.com>
The kernel has a x86 microcode loading facility which is supposed to
provide microcode loading methods in the OS. Potential use cases are
@@ -92,15 +93,8 @@ vendor's site.
Late loading
============
-There are two legacy user space interfaces to load microcode, either through
-/dev/cpu/microcode or through /sys/devices/system/cpu/microcode/reload file
-in sysfs.
-
-The /dev/cpu/microcode method is deprecated because it needs a special
-userspace tool for that.
-
-The easier method is simply installing the microcode packages your distro
-supplies and running::
+You simply install the microcode packages your distro supplies and
+run::
# echo 1 > /sys/devices/system/cpu/microcode/reload
@@ -110,6 +104,110 @@ The loading mechanism looks for microcode blobs in
/lib/firmware/{intel-ucode,amd-ucode}. The default distro installation
packages already put them there.
+Since kernel 5.19, late loading is not enabled by default.
+
+The /dev/cpu/microcode method has been removed in 5.19.
+
+Why is late loading dangerous?
+==============================
+
+Synchronizing all CPUs
+----------------------
+
+The microcode engine which receives the microcode update is shared
+between the two logical threads in a SMT system. Therefore, when
+the update is executed on one SMT thread of the core, the sibling
+"automatically" gets the update.
+
+Since the microcode can "simulate" MSRs too, while the microcode update
+is in progress, those simulated MSRs transiently cease to exist. This
+can result in unpredictable results if the SMT sibling thread happens to
+be in the middle of an access to such an MSR. The usual observation is
+that such MSR accesses cause #GPs to be raised to signal that former are
+not present.
+
+The disappearing MSRs are just one common issue which is being observed.
+Any other instruction that's being patched and gets concurrently
+executed by the other SMT sibling, can also result in similar,
+unpredictable behavior.
+
+To eliminate this case, a stop_machine()-based CPU synchronization was
+introduced as a way to guarantee that all logical CPUs will not execute
+any code but just wait in a spin loop, polling an atomic variable.
+
+While this took care of device or external interrupts, IPIs including
+LVT ones, such as CMCI etc, it cannot address other special interrupts
+that can't be shut off. Those are Machine Check (#MC), System Management
+(#SMI) and Non-Maskable interrupts (#NMI).
+
+Machine Checks
+--------------
+
+Machine Checks (#MC) are non-maskable. There are two kinds of MCEs.
+Fatal un-recoverable MCEs and recoverable MCEs. While un-recoverable
+errors are fatal, recoverable errors can also happen in kernel context
+are also treated as fatal by the kernel.
+
+On certain Intel machines, MCEs are also broadcast to all threads in a
+system. If one thread is in the middle of executing WRMSR, a MCE will be
+taken at the end of the flow. Either way, they will wait for the thread
+performing the wrmsr(0x79) to rendezvous in the MCE handler and shutdown
+eventually if any of the threads in the system fail to check in to the
+MCE rendezvous.
+
+To be paranoid and get predictable behavior, the OS can choose to set
+MCG_STATUS.MCIP. Since MCEs can be at most one in a system, if an
+MCE was signaled, the above condition will promote to a system reset
+automatically. OS can turn off MCIP at the end of the update for that
+core.
+
+System Management Interrupt
+---------------------------
+
+SMIs are also broadcast to all CPUs in the platform. Microcode update
+requests exclusive access to the core before writing to MSR 0x79. So if
+it does happen such that, one thread is in WRMSR flow, and the 2nd got
+an SMI, that thread will be stopped in the first instruction in the SMI
+handler.
+
+Since the secondary thread is stopped in the first instruction in SMI,
+there is very little chance that it would be in the middle of executing
+an instruction being patched. Plus OS has no way to stop SMIs from
+happening.
+
+Non-Maskable Interrupts
+-----------------------
+
+When thread0 of a core is doing the microcode update, if thread1 is
+pulled into NMI, that can cause unpredictable behavior due to the
+reasons above.
+
+OS can choose a variety of methods to avoid running into this situation.
+
+
+Is the microcode suitable for late loading?
+-------------------------------------------
+
+Late loading is done when the system is fully operational and running
+real workloads. Late loading behavior depends on what the base patch on
+the CPU is before upgrading to the new patch.
+
+This is true for Intel CPUs.
+
+Consider, for example, a CPU has patch level 1 and the update is to
+patch level 3.
+
+Between patch1 and patch3, patch2 might have deprecated a software-visible
+feature.
+
+This is unacceptable if software is even potentially using that feature.
+For instance, say MSR_X is no longer available after an update,
+accessing that MSR will cause a #GP fault.
+
+Basically there is no way to declare a new microcode update suitable
+for late-loading. This is another one of the problems that caused late
+loading to be not enabled by default.
+
Builtin microcode
=================
diff --git a/Documentation/x86/orc-unwinder.rst b/Documentation/x86/orc-unwinder.rst
index 9a66a88be765..cdb257015bd9 100644
--- a/Documentation/x86/orc-unwinder.rst
+++ b/Documentation/x86/orc-unwinder.rst
@@ -140,7 +140,7 @@ Unwinder implementation details
Objtool generates the ORC data by integrating with the compile-time
stack metadata validation feature, which is described in detail in
-tools/objtool/Documentation/stack-validation.txt. After analyzing all
+tools/objtool/Documentation/objtool.txt. After analyzing all
the code paths of a .o file, it creates an array of orc_entry structs,
and a parallel array of instruction addresses associated with those
structs, and writes them to the .orc_unwind and .orc_unwind_ip sections
diff --git a/Documentation/x86/sgx.rst b/Documentation/x86/sgx.rst
index 265568a9292c..2bcbffacbed5 100644
--- a/Documentation/x86/sgx.rst
+++ b/Documentation/x86/sgx.rst
@@ -100,6 +100,21 @@ pages and establish enclave page permissions.
sgx_ioc_enclave_init
sgx_ioc_enclave_provision
+Enclave runtime management
+--------------------------
+
+Systems supporting SGX2 additionally support changes to initialized
+enclaves: modifying enclave page permissions and type, and dynamically
+adding and removing of enclave pages. When an enclave accesses an address
+within its address range that does not have a backing page then a new
+regular page will be dynamically added to the enclave. The enclave is
+still required to run EACCEPT on the new page before it can be used.
+
+.. kernel-doc:: arch/x86/kernel/cpu/sgx/ioctl.c
+ :functions: sgx_ioc_enclave_restrict_permissions
+ sgx_ioc_enclave_modify_types
+ sgx_ioc_enclave_remove_pages
+
Enclave vDSO
------------
diff --git a/Documentation/x86/x86_64/boot-options.rst b/Documentation/x86/x86_64/boot-options.rst
index 03ec9cf01181..cbd14124a667 100644
--- a/Documentation/x86/x86_64/boot-options.rst
+++ b/Documentation/x86/x86_64/boot-options.rst
@@ -287,11 +287,13 @@ iommu options only relevant to the AMD GART hardware IOMMU:
iommu options only relevant to the software bounce buffering (SWIOTLB) IOMMU
implementation:
- swiotlb=<pages>[,force]
- <pages>
- Prereserve that many 128K pages for the software IO bounce buffering.
+ swiotlb=<slots>[,force,noforce]
+ <slots>
+ Prereserve that many 2K slots for the software IO bounce buffering.
force
Force all IO through the software TLB.
+ noforce
+ Do not initialize the software TLB.
Miscellaneous
diff --git a/Documentation/x86/x86_64/uefi.rst b/Documentation/x86/x86_64/uefi.rst
index 3b894103a734..fbc30c9a071d 100644
--- a/Documentation/x86/x86_64/uefi.rst
+++ b/Documentation/x86/x86_64/uefi.rst
@@ -29,7 +29,7 @@ Mechanics
be selected::
CONFIG_EFI=y
- CONFIG_EFI_VARS=y or m # optional
+ CONFIG_EFIVAR_FS=y or m # optional
- Create a VFAT partition on the disk
- Copy the following to the VFAT partition: