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dt-bindings: drm/msm/gpu: Add cooling device support

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Add cooling device support to gpu. A cooling device is bound to a
thermal zone to allow thermal mitigation.

Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Akhil P Oommen 2020-10-30 16:17:12 +05:30 committed by Rob Clark
parent ec793cf01d
commit 06d65ba3db
1 changed files with 7 additions and 0 deletions
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7
Documentation/devicetree/bindings/display/msm/gpu.txt
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@ -39,6 +39,10 @@ Required properties:
a4xx Snapdragon SoCs. See a4xx Snapdragon SoCs. See
Documentation/devicetree/bindings/sram/qcom,ocmem.yaml. Documentation/devicetree/bindings/sram/qcom,ocmem.yaml.
Optional properties:
- #cooling-cells: The value must be 2. For details, please refer
Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml.
Example 3xx/4xx: Example 3xx/4xx:
/ { / {
@ -61,6 +65,7 @@ Example 3xx/4xx:
power-domains = <&mmcc OXILICX_GDSC>; power-domains = <&mmcc OXILICX_GDSC>;
operating-points-v2 = <&gpu_opp_table>; operating-points-v2 = <&gpu_opp_table>;
iommus = <&gpu_iommu 0>; iommus = <&gpu_iommu 0>;
#cooling-cells = <2>;
}; };
gpu_sram: ocmem@fdd00000 { gpu_sram: ocmem@fdd00000 {
@ -98,6 +103,8 @@ Example a6xx (with GMU):
reg = <0x5000000 0x40000>, <0x509e000 0x10>; reg = <0x5000000 0x40000>, <0x509e000 0x10>;
reg-names = "kgsl_3d0_reg_memory", "cx_mem"; reg-names = "kgsl_3d0_reg_memory", "cx_mem";
#cooling-cells = <2>;
/* /*
* Look ma, no clocks! The GPU clocks and power are * Look ma, no clocks! The GPU clocks and power are
* controlled entirely by the GMU * controlled entirely by the GMU