@@ -243,6 +243,29 @@ gpu0_thermal: gpu0-thermal {
polling-delay-passive = <0>;
polling-delay = <0>;
thermal-sensors = <&ths 1>;
+
+ trips {
+ gpu0_alert0: gpu0_alert0 {
+ /* milliCelsius */
+ temperature = <75000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ gpu0_alert1: gpu0_alert1 {
+ /* milliCelsius */
+ temperature = <90000>;
+ hysteresis = <2000>;
+ type = "hot";
+ };
+
+ gpu0_crit: gpu0_crit {
+ /* milliCelsius */
+ temperature = <110000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
};
gpu1_thermal: gpu1-thermal {
@@ -250,6 +273,29 @@ gpu1_thermal: gpu1-thermal {
polling-delay-passive = <0>;
polling-delay = <0>;
thermal-sensors = <&ths 2>;
+
+ trips {
+ gpu1_alert0: gpu1_alert0 {
+ /* milliCelsius */
+ temperature = <75000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ gpu1_alert1: gpu1_alert1 {
+ /* milliCelsius */
+ temperature = <90000>;
+ hysteresis = <2000>;
+ type = "hot";
+ };
+
+ gpu1_crit: gpu1_crit {
+ /* milliCelsius */
+ temperature = <110000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
};
};
Without trip points for GPU, the following errors are printed in the dmesg log and the sun8i-thermal driver fails to load: thermal_sys: Failed to find 'trips' node thermal_sys: Failed to find trip points for thermal-sensor id=1 sun8i-thermal: probe of 1c25000.thermal-sensor failed with error -22 When thermal zones are defined, trip points definitions are mandatory. Trip values for the GPU are assumed to be the same values as the CPU ones. The available specs do not provide any hints about thermal regimes for the GPU and it seems GPU is implemented on the same die as the CPU. Tested on Pine a64+. Cc: Samuel Holland <samuel@sholland.org> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: devicetree@vger.kernel.org Signed-off-by: Alexey Klimov <alexey.klimov@linaro.org> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 46 +++++++++++++++++++ 1 file changed, 46 insertions(+)