arm64: dts: qcom: sc8280xp: Throttle the GPU when overheating

Add an 85C passive trip point with 1C of hysteresis to ensure the thermal framework takes sufficient action to prevent reaching junction temperature. Also, add passive polling to ensure more than one temperature change event is recorded. Fixes: 014bbc9 ("arm64: dts: qcom: sc8280xp: Introduce additional tsens instances") Signed-off-by: Konrad Dybcio <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Bjorn Andersson <[email protected]>
chewitt · Jun 7, 2024 · f7fd6d0 · f7fd6d0
1 parent 7c05517
commit f7fd6d0
Showing 1 changed file with 16 additions and 1 deletion.
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -6004,10 +6004,25 @@
 		};
 
 		gpu-thermal {
+			polling-delay-passive = <250>;
+
 			thermal-sensors = <&tsens2 2>;
 
+			cooling-maps {
+				map0 {
+					trip = <&gpu_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 			trips {
-				gpu-crit {
+				gpu_alert0: trip-point0 {
+					temperature = <85000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+
+				trip-point1 {
 					temperature = <110000>;
 					hysteresis = <1000>;
 					type = "critical";