On Tue, May 12, 2026 at 03:53:20AM +0530, Akhil P Oommen wrote:
> From: Gaurav Kohli <[email protected]>
>
> Unlike the CPU, the GPU does not throttle its speed automatically when it
> reaches high temperatures.
>
> Set up GPU cooling by throttling the GPU speed
> when reaching 105°C.
>
> Signed-off-by: Gaurav Kohli <[email protected]>
> Signed-off-by: Akhil P Oommen <[email protected]>
> ---
> arch/arm64/boot/dts/qcom/kaanapali.dtsi | 165
> ++++++++++++++++++++++++++------
> 1 file changed, 135 insertions(+), 30 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/qcom/kaanapali.dtsi
> b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
> index c57aea44218e..5089416ec32c 100644
> --- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi
> +++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi
> @@ -26,6 +26,7 @@
> #include <dt-bindings/soc/qcom,gpr.h>
> #include <dt-bindings/soc/qcom,rpmh-rsc.h>
> #include <dt-bindings/sound/qcom,q6dsp-lpass-ports.h>
> +#include <dt-bindings/thermal/thermal.h>
>
> #include "kaanapali-ipcc.h"
>
> @@ -7045,13 +7046,15 @@ nsphmx-3-critical {
> };
>
> gpuss-0-thermal {
> + polling-delay-passive = <200>;
Other DT files use 10 for GPU thermal zones polling interval.
> +
> thermal-sensors = <&tsens5 0>;
>
> trips {
> - gpuss-0-hot {
> - temperature = <120000>;
> + gpuss_0_alert0: gpuss-0-alert0 {
> + temperature = <105000>;
> hysteresis = <5000>;
> - type = "hot";
> + type = "passive";
> };
Why don't we keep both passive and hot trip points?
>
> gpuss-0-critical {
>
--
With best wishes
Dmitry
