linux-kernel - [PATCH 03/12] arm64: dts: qcom: sc8180x: Hook up GPU cooling device

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Message-Id: <20240102-topic-gpu_cooling-v1-3-fda30c57e353@linaro.org>
Date: Tue, 02 Jan 2024 14:34:07 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 03/12] 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@...aro.org>
---
 arch/arm64/boot/dts/qcom/sc8180x.dtsi | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
index 0430d99091e3..b1227e04429c 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
@@ -2173,6 +2173,8 @@ gpu: gpu@...0000 {
 			interconnect-names = "gfx-mem";
 
 			qcom,gmu = <&gmu>;
+			#cooling-cells = <2>;
+
 			status = "disabled";
 
 			gpu_opp_table: opp-table {
@@ -3880,8 +3882,15 @@ 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";
@@ -4030,8 +4039,15 @@ 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";

-- 
2.43.0