[PATCH v8 3/4] arm64: dts: qcom: talos: Add GPU cooling

[Akhil P Oommen <akhilpo@oss.qualcomm.com>]

From: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>

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 it reaches 105°C.

Signed-off-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/talos.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
index 11689da96c96..fcd9aa0f5c33 100644
--- a/arch/arm64/boot/dts/qcom/talos.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos.dtsi
@@ -19,6 +19,7 @@
 #include <dt-bindings/power/qcom-rpmpd.h>
 #include <dt-bindings/power/qcom,rpmhpd.h>
 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	interrupt-parent = <&intc>;
@@ -4985,12 +4986,25 @@ gpu-thermal {
 			thermal-sensors = <&tsens0 9>;
 
 			trips {
+				gpu_alert0: trip-point0 {
+					temperature = <105000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
 				gpu-critical {
 					temperature = <115000>;
 					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&gpu_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		q6-hvx-thermal {

-- 
2.51.0