dt-bindings: hwlock: qcom: Migrate binding to YAML
Migrate the Qualcomm TCSR mutex binding to YAML to allow validation. Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20200622075956.171058-2-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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Qualcomm Hardware Mutex Block:
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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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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be one of:
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"qcom,sfpb-mutex",
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"qcom,tcsr-mutex"
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- syscon:
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Usage: required
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Value type: <prop-encoded-array>
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Definition: one cell containing:
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syscon phandle
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offset of the hwmutex block within the syscon
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stride of the hwmutex registers
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- #hwlock-cells:
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Usage: required
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Value type: <u32>
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Definition: must be 1, the specified cell represent the lock id
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(hwlock standard property, see hwlock.txt)
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Example:
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tcsr_mutex_block: syscon@fd484000 {
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compatible = "syscon";
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reg = <0xfd484000 0x2000>;
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};
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hwlock@fd484000 {
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compatible = "qcom,tcsr-mutex";
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syscon = <&tcsr_mutex_block 0 0x80>;
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#hwlock-cells = <1>;
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};
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# 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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enum:
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- qcom,sfpb-mutex
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- qcom,tcsr-mutex
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'#hwlock-cells':
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const: 1
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syscon:
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$ref: "/schemas/types.yaml#/definitions/phandle-array"
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description:
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Should be a triple of phandle referencing the TCSR mutex syscon, offset
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of first mutex within the syscon and stride between each mutex.
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required:
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- compatible
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- '#hwlock-cells'
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- syscon
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additionalProperties: false
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examples:
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- |
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tcsr_mutex_block: syscon@fd484000 {
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compatible = "syscon";
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reg = <0xfd484000 0x2000>;
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};
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hwlock {
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compatible = "qcom,tcsr-mutex";
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syscon = <&tcsr_mutex_block 0 0x80>;
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#hwlock-cells = <1>;
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};
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...
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