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c29f446108
The TCSR_MUTEX region contains two set of registers: mutex and halt. Add syscon, so the TCSR mutex device (hwspinlock) can use MMIO based method and in the same time share regmap with other devices for the halt regs. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Tested-by: Luca Weiss <luca@z3ntu.xyz> # fairphone-fp2 Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220920150414.637634-2-krzysztof.kozlowski@linaro.org
55 lines
1.2 KiB
YAML
55 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/hwlock/qcom-hwspinlock.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Hardware Mutex Block
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maintainers:
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- Bjorn Andersson <bjorn.andersson@linaro.org>
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description:
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The hardware block provides mutexes utilized between different processors on
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the SoC as part of the communication protocol used by these processors.
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properties:
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compatible:
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oneOf:
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- enum:
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- qcom,sfpb-mutex
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- qcom,tcsr-mutex
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- items:
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- enum:
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- qcom,apq8084-tcsr-mutex
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- qcom,ipq6018-tcsr-mutex
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- qcom,msm8226-tcsr-mutex
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- qcom,msm8994-tcsr-mutex
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- const: qcom,tcsr-mutex
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- items:
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- enum:
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- qcom,msm8974-tcsr-mutex
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- const: qcom,tcsr-mutex
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- const: syscon
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reg:
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maxItems: 1
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'#hwlock-cells':
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const: 1
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required:
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- compatible
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- reg
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- '#hwlock-cells'
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additionalProperties: false
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examples:
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- |
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hwlock@1f40000 {
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compatible = "qcom,tcsr-mutex";
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reg = <0x01f40000 0x40000>;
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#hwlock-cells = <1>;
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};
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...
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