Messages in this thread Patch in this message | | | From | Martin Blumenstingl <> | Subject | [PATCH v5] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property | Date | Sat, 11 Apr 2020 18:57:00 +0200 |
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The GPU can be one of the big heat sources on a SoC. Allow the "#cooling-cells" property to be specified for ARM Mali Utgard GPUs so the GPU clock speeds (and voltages) can be reduced to prevent a SoC from overheating.
Reviewed-by: Qiang Yu <yuq825@gmail.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- Changes since v4 at [0]: - Added Qiang's Reviewed-by (many thanks) - re-send because I missed the devicetree mailing list in v4
[0] https://patchwork.kernel.org/patch/11448013/
Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml index f5401cc8de4a..4869258daadb 100644 --- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml +++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml @@ -107,6 +107,9 @@ properties: operating-points-v2: true + "#cooling-cells": + const: 2 + required: - compatible - reg @@ -164,6 +167,7 @@ examples: clocks = <&ccu 1>, <&ccu 2>; clock-names = "bus", "core"; resets = <&ccu 1>; + #cooling-cells = <2>; }; ... -- 2.26.0
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