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dt-bindings: soc: qcom: convert qcom,smem bindings to yaml 

Convert soc/qcom/qcom,smem.txt bindings to YAML format.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201215104537.768914-1-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Dmitry Baryshkov 2020-12-15 13:45:37 +03:00 committed by Bjorn Andersson
parent e1d8008179
commit e2b0330c5a
2 changed files with 72 additions and 57 deletions
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57
Documentation/devicetree/bindings/soc/qcom/qcom,smem.txt
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Qualcomm Shared Memory Manager binding
This binding describes the Qualcomm Shared Memory Manager, used to share data
between various subsystems and OSes in Qualcomm platforms.
- compatible:
Usage: required
Value type: <stringlist>
Definition: must be:
"qcom,smem"
- memory-region:
Usage: required
Value type: <prop-encoded-array>
Definition: handle to memory reservation for main SMEM memory region.
- qcom,rpm-msg-ram:
Usage: required
Value type: <prop-encoded-array>
Definition: handle to RPM message memory resource
- hwlocks:
Usage: required
Value type: <prop-encoded-array>
Definition: reference to a hwspinlock used to protect allocations from
the shared memory
= EXAMPLE
The following example shows the SMEM setup for MSM8974, with a main SMEM region
at 0xfa00000 and the RPM message ram at 0xfc428000:
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
smem_region: smem@fa00000 {
reg = <0xfa00000 0x200000>;
no-map;
};
};
smem@fa00000 {
compatible = "qcom,smem";
memory-region = <&smem_region>;
qcom,rpm-msg-ram = <&rpm_msg_ram>;
hwlocks = <&tcsr_mutex 3>;
};
soc {
rpm_msg_ram: memory@fc428000 {
compatible = "qcom,rpm-msg-ram";
reg = <0xfc428000 0x4000>;
};
};

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Documentation/devicetree/bindings/soc/qcom/qcom,smem.yaml Normal file
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: "http://devicetree.org/schemas/soc/qcom/qcom,smem.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"
title: Qualcomm Shared Memory Manager binding
maintainers:
- Andy Gross <agross@kernel.org>
- Bjorn Andersson <bjorn.andersson@linaro.org>
description: |
This binding describes the Qualcomm Shared Memory Manager, used to share data
between various subsystems and OSes in Qualcomm platforms.
properties:
compatible:
const: qcom,smem
memory-region:
maxItems: 1
description: handle to memory reservation for main SMEM memory region.
hwlocks:
maxItems: 1
qcom,rpm-msg-ram:
$ref: /schemas/types.yaml#/definitions/phandle
description: handle to RPM message memory resource
required:
- compatible
- memory-region
- hwlocks
additionalProperties: false
examples:
- |
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
smem_region: smem@fa00000 {
reg = <0xfa00000 0x200000>;
no-map;
};
};
smem {
compatible = "qcom,smem";
memory-region = <&smem_region>;
qcom,rpm-msg-ram = <&rpm_msg_ram>;
hwlocks = <&tcsr_mutex 3>;
};
soc {
#address-cells = <1>;
#size-cells = <1>;
ranges;
rpm_msg_ram: sram@fc428000 {
compatible = "qcom,rpm-msg-ram";
reg = <0xfc428000 0x4000>;
};
};
...