On 8/21/22 12:30 PM, Clément Péron wrote:
> Add a simple cooling map for the GPU.
It would be good to document where the trip point temperatures came from.
> Signed-off-by: Clément Péron <peron.clem@xxxxxxxxx>
Acked-by: Samuel Holland <samuel@xxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 22 ++++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> index 5a28303d3d4c..943ae5374dd6 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> @@ -186,6 +186,7 @@ gpu: gpu@1800000 {
> clocks = <&ccu CLK_GPU>, <&ccu CLK_BUS_GPU>;
> clock-names = "core", "bus";
> resets = <&ccu RST_BUS_GPU>;
> + #cooling-cells = <2>;
> status = "disabled";
> };
>
> @@ -1075,6 +1076,27 @@ gpu-thermal {
> polling-delay-passive = <0>;
> polling-delay = <0>;
> thermal-sensors = <&ths 1>;
> +
> + trips {
> + gpu_alert: gpu-alert {
> + temperature = <85000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> +
> + gpu-crit {
> + temperature = <100000>;
> + hysteresis = <0>;
> + type = "critical";
> + };
> + };
> +
> + cooling-maps {
> + map0 {
> + trip = <&gpu_alert>;
> + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> };
> };
> };
>
