[PATCH v5] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property

[PATCH v5] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property

[Martin Blumenstingl]

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

Re: [PATCH v5] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property

[Neil Armstrong]

On 11/04/2020 18:57, Martin Blumenstingl wrote:
> 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>;
>      };
>  
>  ...
> 

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>

Re: [PATCH v5] dt-bindings: gpu: mali-utgard: Add the #cooling-cells property

[Rob Herring]

On Sat, 11 Apr 2020 18:57:00 +0200, Martin Blumenstingl wrote:
> 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(+)
> 

Applied, thanks.

Rob