arm64: dts: qcom: sc8180x: Hook up GPU cooling device

In order to allow for throttling the GPU, hook up the cooling device
to the respective thermal zones.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240102-topic-gpu_cooling-v1-3-fda30c57e353@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/sc8180x.dtsi

@@ -2182,6 +2182,8 @@ gpu: gpu@2c00000 {
 			interconnect-names = "gfx-mem";
 
 			qcom,gmu = <&gmu>;
+			#cooling-cells = <2>;
+
 			status = "disabled";
 
 			gpu_opp_table: opp-table {
@@ -3899,8 +3901,15 @@ gpu-top-thermal {
 
 			thermal-sensors = <&tsens0 15>;
 
+			cooling-maps {
+				map0 {
+					trip = <&gpu_top_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 			trips {
-				trip-point0 {
+				gpu_top_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
 					type = "hot";
@@ -4049,8 +4058,15 @@ gpu-bottom-thermal {
 
 			thermal-sensors = <&tsens1 11>;
 
+			cooling-maps {
+				map0 {
+					trip = <&gpu_bottom_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 			trips {
-				trip-point0 {
+				gpu_bottom_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <2000>;
 					type = "hot";