linux-kernel - [PATCH 09/12] arm64: dts: qcom: sm8350: Hook up GPU cooling device

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Message-Id: <20240102-topic-gpu_cooling-v1-9-fda30c57e353@linaro.org>
Date: Tue, 02 Jan 2024 14:34:13 +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 09/12] arm64: dts: qcom: sm8350: Hook up GPU cooling device

In order to allow for throttling the GPU, hook up the cooling device
to the respective thermal zones. Also, update the trip point label
to be more telling, while at it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm8350.dtsi | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
index e78c83a897c2..1c6f80b14d09 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -1847,6 +1847,7 @@ gpu: gpu@...0000 {
 			operating-points-v2 = <&gpu_opp_table>;
 
 			qcom,gmu = <&gmu>;
+			#cooling-cells = <2>;
 
 			status = "disabled";
 
@@ -4214,8 +4215,15 @@ gpu-top-thermal {
 
 			thermal-sensors = <&tsens1 1>;
 
+			cooling-maps {
+				map0 {
+					trip = <&gpu_top_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 			trips {
-				gpu1_alert0: trip-point0 {
+				gpu_top_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <1000>;
 					type = "hot";
@@ -4229,8 +4237,15 @@ gpu-bottom-thermal {
 
 			thermal-sensors = <&tsens1 2>;
 
+			cooling-maps {
+				map0 {
+					trip = <&gpu_bottom_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 			trips {
-				gpu2_alert0: trip-point0 {
+				gpu_bottom_alert0: trip-point0 {
 					temperature = <90000>;
 					hysteresis = <1000>;
 					type = "hot";

-- 
2.43.0