Welcome to mirror list, hosted at ThFree Co, Russian Federation.

github.com/torvalds/linux.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-29 21:06:55 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-29 21:06:55 +0300
commit1d59c3b669faddb91737f4e59c09305878a971d8 (patch)
treedc00847bb3bd096d95349729d2175a5e8770da68 /Documentation/devicetree/bindings/power
parent5efabdadcf4a5b9a37847ecc85ba71cf2eff0fcf (diff)
parent3b65dd5be3c72b9d2013bfe6e9261e2b06222fa9 (diff)
Merge tag 'pm-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki: "These update ARM cpufreq drivers, the OPP (Operating Performance Points) library and the power management documentation. Specifics: - Add per core DVFS support for QCom SoC (Bjorn Andersson), convert to yaml binding (Manivannan Sadhasivam) and various other fixes to the QCom drivers (Luca Weiss). - Add OPP table for imx7s SoC (Denys Drozdov) and minor fixes (Stefan Agner). - Fix CPPC driver's freq/performance conversions (Pierre Gondois). - Minor generic cleanups (Yury Norov). - Introduce opp-microwatt property to the OPP core, bindings, etc (Lukasz Luba). - Convert DT bindings to schema format and various related fixes (Yassine Oudjana). - Expose OPP's OF node in debugfs (Viresh Kumar). - Add Intel uncore frequency scaling documentation file to its MAINTAINERS entry (Srinivas Pandruvada). - Clean up the AMD P-state driver documentation (Jan Engelhardt)" * tag 'pm-5.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits) Documentation: amd-pstate: grammar and sentence structure updates dt-bindings: cpufreq: cpufreq-qcom-hw: Convert to YAML bindings dt-bindings: dvfs: Use MediaTek CPUFREQ HW as an example Documentation: EM: Describe new registration method using DT OPP: Add support of "opp-microwatt" for EM registration PM: EM: add macro to set .active_power() callback conditionally OPP: Add "opp-microwatt" supporting code dt-bindings: opp: Add "opp-microwatt" entry in the OPP MAINTAINERS: Add additional file to uncore frequency control cpufreq: blocklist Qualcomm sc8280xp and sa8540p in cpufreq-dt-platdev cpufreq: qcom-hw: Add support for per-core-dcvs dt-bindings: power: avs: qcom,cpr: Convert to DT schema arm64: dts: qcom: qcs404: Rename CPU and CPR OPP tables arm64: dts: qcom: msm8996: Rename cluster OPP tables dt-bindings: opp: Convert qcom-nvmem-cpufreq to DT schema dt-bindings: opp: qcom-opp: Convert to DT schema arm64: dts: qcom: msm8996-mtp: Add msm8996 compatible dt-bindings: arm: qcom: Add msm8996 and apq8096 compatibles opp: Expose of-node's name in debugfs cpufreq: CPPC: Fix performance/frequency conversion ...
Diffstat (limited to 'Documentation/devicetree/bindings/power')
-rw-r--r--Documentation/devicetree/bindings/power/avs/qcom,cpr.txt130
-rw-r--r--Documentation/devicetree/bindings/power/avs/qcom,cpr.yaml160
2 files changed, 160 insertions, 130 deletions
diff --git a/Documentation/devicetree/bindings/power/avs/qcom,cpr.txt b/Documentation/devicetree/bindings/power/avs/qcom,cpr.txt
deleted file mode 100644
index ab0d5ebbad4e..000000000000
--- a/Documentation/devicetree/bindings/power/avs/qcom,cpr.txt
+++ /dev/null
@@ -1,130 +0,0 @@
-QCOM CPR (Core Power Reduction)
-
-CPR (Core Power Reduction) is a technology to reduce core power on a CPU
-or other device. Each OPP of a device corresponds to a "corner" that has
-a range of valid voltages for a particular frequency. While the device is
-running at a particular frequency, CPR monitors dynamic factors such as
-temperature, etc. and suggests adjustments to the voltage to save power
-and meet silicon characteristic requirements.
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: should be "qcom,qcs404-cpr", "qcom,cpr" for qcs404
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: base address and size of the rbcpr register region
-
-- interrupts:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: should specify the CPR interrupt
-
-- clocks:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: phandle to the reference clock
-
-- clock-names:
- Usage: required
- Value type: <stringlist>
- Definition: must be "ref"
-
-- vdd-apc-supply:
- Usage: required
- Value type: <phandle>
- Definition: phandle to the vdd-apc-supply regulator
-
-- #power-domain-cells:
- Usage: required
- Value type: <u32>
- Definition: should be 0
-
-- operating-points-v2:
- Usage: required
- Value type: <phandle>
- Definition: A phandle to the OPP table containing the
- performance states supported by the CPR
- power domain
-
-- acc-syscon:
- Usage: optional
- Value type: <phandle>
- Definition: phandle to syscon for writing ACC settings
-
-- nvmem-cells:
- Usage: required
- Value type: <phandle>
- Definition: phandle to nvmem cells containing the data
- that makes up a fuse corner, for each fuse corner.
- As well as the CPR fuse revision.
-
-- nvmem-cell-names:
- Usage: required
- Value type: <stringlist>
- Definition: should be "cpr_quotient_offset1", "cpr_quotient_offset2",
- "cpr_quotient_offset3", "cpr_init_voltage1",
- "cpr_init_voltage2", "cpr_init_voltage3", "cpr_quotient1",
- "cpr_quotient2", "cpr_quotient3", "cpr_ring_osc1",
- "cpr_ring_osc2", "cpr_ring_osc3", "cpr_fuse_revision"
- for qcs404.
-
-Example:
-
- cpr_opp_table: cpr-opp-table {
- compatible = "operating-points-v2-qcom-level";
-
- cpr_opp1: opp1 {
- opp-level = <1>;
- qcom,opp-fuse-level = <1>;
- };
- cpr_opp2: opp2 {
- opp-level = <2>;
- qcom,opp-fuse-level = <2>;
- };
- cpr_opp3: opp3 {
- opp-level = <3>;
- qcom,opp-fuse-level = <3>;
- };
- };
-
- power-controller@b018000 {
- compatible = "qcom,qcs404-cpr", "qcom,cpr";
- reg = <0x0b018000 0x1000>;
- interrupts = <0 15 IRQ_TYPE_EDGE_RISING>;
- clocks = <&xo_board>;
- clock-names = "ref";
- vdd-apc-supply = <&pms405_s3>;
- #power-domain-cells = <0>;
- operating-points-v2 = <&cpr_opp_table>;
- acc-syscon = <&tcsr>;
-
- nvmem-cells = <&cpr_efuse_quot_offset1>,
- <&cpr_efuse_quot_offset2>,
- <&cpr_efuse_quot_offset3>,
- <&cpr_efuse_init_voltage1>,
- <&cpr_efuse_init_voltage2>,
- <&cpr_efuse_init_voltage3>,
- <&cpr_efuse_quot1>,
- <&cpr_efuse_quot2>,
- <&cpr_efuse_quot3>,
- <&cpr_efuse_ring1>,
- <&cpr_efuse_ring2>,
- <&cpr_efuse_ring3>,
- <&cpr_efuse_revision>;
- nvmem-cell-names = "cpr_quotient_offset1",
- "cpr_quotient_offset2",
- "cpr_quotient_offset3",
- "cpr_init_voltage1",
- "cpr_init_voltage2",
- "cpr_init_voltage3",
- "cpr_quotient1",
- "cpr_quotient2",
- "cpr_quotient3",
- "cpr_ring_osc1",
- "cpr_ring_osc2",
- "cpr_ring_osc3",
- "cpr_fuse_revision";
- };
diff --git a/Documentation/devicetree/bindings/power/avs/qcom,cpr.yaml b/Documentation/devicetree/bindings/power/avs/qcom,cpr.yaml
new file mode 100644
index 000000000000..3301fa0c2653
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/avs/qcom,cpr.yaml
@@ -0,0 +1,160 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/avs/qcom,cpr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Core Power Reduction (CPR) bindings
+
+maintainers:
+ - Niklas Cassel <nks@flawful.org>
+
+description: |
+ CPR (Core Power Reduction) is a technology to reduce core power on a CPU
+ or other device. Each OPP of a device corresponds to a "corner" that has
+ a range of valid voltages for a particular frequency. While the device is
+ running at a particular frequency, CPR monitors dynamic factors such as
+ temperature, etc. and suggests adjustments to the voltage to save power
+ and meet silicon characteristic requirements.
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - qcom,qcs404-cpr
+ - const: qcom,cpr
+
+ reg:
+ description: Base address and size of the RBCPR register region.
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Reference clock.
+
+ clock-names:
+ items:
+ - const: ref
+
+ vdd-apc-supply:
+ description: APC regulator supply.
+
+ '#power-domain-cells':
+ const: 0
+
+ operating-points-v2:
+ description: |
+ A phandle to the OPP table containing the performance states
+ supported by the CPR power domain.
+
+ acc-syscon:
+ description: A phandle to the syscon used for writing ACC settings.
+
+ nvmem-cells:
+ items:
+ - description: Corner 1 quotient offset
+ - description: Corner 2 quotient offset
+ - description: Corner 3 quotient offset
+ - description: Corner 1 initial voltage
+ - description: Corner 2 initial voltage
+ - description: Corner 3 initial voltage
+ - description: Corner 1 quotient
+ - description: Corner 2 quotient
+ - description: Corner 3 quotient
+ - description: Corner 1 ring oscillator
+ - description: Corner 2 ring oscillator
+ - description: Corner 3 ring oscillator
+ - description: Fuse revision
+
+ nvmem-cell-names:
+ items:
+ - const: cpr_quotient_offset1
+ - const: cpr_quotient_offset2
+ - const: cpr_quotient_offset3
+ - const: cpr_init_voltage1
+ - const: cpr_init_voltage2
+ - const: cpr_init_voltage3
+ - const: cpr_quotient1
+ - const: cpr_quotient2
+ - const: cpr_quotient3
+ - const: cpr_ring_osc1
+ - const: cpr_ring_osc2
+ - const: cpr_ring_osc3
+ - const: cpr_fuse_revision
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - vdd-apc-supply
+ - '#power-domain-cells'
+ - operating-points-v2
+ - nvmem-cells
+ - nvmem-cell-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ cpr_opp_table: opp-table-cpr {
+ compatible = "operating-points-v2-qcom-level";
+
+ cpr_opp1: opp1 {
+ opp-level = <1>;
+ qcom,opp-fuse-level = <1>;
+ };
+ cpr_opp2: opp2 {
+ opp-level = <2>;
+ qcom,opp-fuse-level = <2>;
+ };
+ cpr_opp3: opp3 {
+ opp-level = <3>;
+ qcom,opp-fuse-level = <3>;
+ };
+ };
+
+ power-controller@b018000 {
+ compatible = "qcom,qcs404-cpr", "qcom,cpr";
+ reg = <0x0b018000 0x1000>;
+ interrupts = <0 15 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xo_board>;
+ clock-names = "ref";
+ vdd-apc-supply = <&pms405_s3>;
+ #power-domain-cells = <0>;
+ operating-points-v2 = <&cpr_opp_table>;
+ acc-syscon = <&tcsr>;
+
+ nvmem-cells = <&cpr_efuse_quot_offset1>,
+ <&cpr_efuse_quot_offset2>,
+ <&cpr_efuse_quot_offset3>,
+ <&cpr_efuse_init_voltage1>,
+ <&cpr_efuse_init_voltage2>,
+ <&cpr_efuse_init_voltage3>,
+ <&cpr_efuse_quot1>,
+ <&cpr_efuse_quot2>,
+ <&cpr_efuse_quot3>,
+ <&cpr_efuse_ring1>,
+ <&cpr_efuse_ring2>,
+ <&cpr_efuse_ring3>,
+ <&cpr_efuse_revision>;
+ nvmem-cell-names = "cpr_quotient_offset1",
+ "cpr_quotient_offset2",
+ "cpr_quotient_offset3",
+ "cpr_init_voltage1",
+ "cpr_init_voltage2",
+ "cpr_init_voltage3",
+ "cpr_quotient1",
+ "cpr_quotient2",
+ "cpr_quotient3",
+ "cpr_ring_osc1",
+ "cpr_ring_osc2",
+ "cpr_ring_osc3",
+ "cpr_fuse_revision";
+ };