[PATCH v4 3/6] arm64: dts: rockchip: add passive GPU cooling on RK3588

From: Alexey Charkov
Date: Mon May 06 2024 - 05:38:45 EST


As the GPU support on RK3588 has been merged upstream, along with OPP
values, add a corresponding cooling map for passive cooling using the GPU.

Signed-off-by: Alexey Charkov <alchark@xxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3588s.dtsi | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
index ef06c1f742e8..57c2d998ae75 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi
@@ -2487,17 +2487,29 @@ center_crit: center-crit {
};

gpu_thermal: gpu-thermal {
- polling-delay-passive = <0>;
+ polling-delay-passive = <100>;
polling-delay = <0>;
thermal-sensors = <&tsadc 5>;

trips {
+ gpu_alert: gpu-alert {
+ temperature = <85000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
gpu_crit: gpu-crit {
temperature = <115000>;
hysteresis = <0>;
type = "critical";
};
};
+ cooling-maps {
+ map0 {
+ trip = <&gpu_alert>;
+ cooling-device =
+ <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
};

npu_thermal: npu-thermal {

--
2.45.0