Messages in this thread Patch in this message | | | From | Martin Blumenstingl <> | Subject | [PATCH RFC v3 1/2] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property | Date | Sat, 22 Feb 2020 23:04:31 +0100 |
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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.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> --- 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 afde81be3c29..33548ca2a759 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 @@ -162,6 +165,7 @@ examples: clocks = <&ccu 1>, <&ccu 2>; clock-names = "bus", "core"; resets = <&ccu 1>; + #cooling-cells = <2>; }; ... -- 2.25.1
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