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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/hwlock/qcom-hwspinlock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Hardware Mutex Block
maintainers:
- Bjorn Andersson <bjorn.andersson@linaro.org>
description:
The hardware block provides mutexes utilized between different processors on
the SoC as part of the communication protocol used by these processors.
properties:
compatible:
enum:
- qcom,sfpb-mutex
- qcom,tcsr-mutex
'#hwlock-cells':
const: 1
syscon:
$ref: "/schemas/types.yaml#/definitions/phandle-array"
description:
Should be a triple of phandle referencing the TCSR mutex syscon, offset
of first mutex within the syscon and stride between each mutex.
required:
- compatible
- '#hwlock-cells'
- syscon
additionalProperties: false
examples:
- |
tcsr_mutex_block: syscon@fd484000 {
compatible = "syscon";
reg = <0xfd484000 0x2000>;
};
hwlock {
compatible = "qcom,tcsr-mutex";
syscon = <&tcsr_mutex_block 0 0x80>;
#hwlock-cells = <1>;
};
...
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