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From: Konrad Dybcio <konrad.dybcio@linaro.org>
Date: Tue, 02 Jan 2024 14:34:06 +0100
Subject: [PATCH 02/12] arm64: dts: qcom: msm8939: Hook up GPU cooling
 device
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Message-Id: <20240102-topic-gpu_cooling-v1-2-fda30c57e353@linaro.org>
References: <20240102-topic-gpu_cooling-v1-0-fda30c57e353@linaro.org>
In-Reply-To: <20240102-topic-gpu_cooling-v1-0-fda30c57e353@linaro.org>
To: Bjorn Andersson <andersson@kernel.org>, 
 Rob Herring <robh+dt@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>
Cc: Marijn Suijten <marijn.suijten@somainline.org>, 
 linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, 
 linux-kernel@vger.kernel.org, Konrad Dybcio <konrad.dybcio@linaro.org>

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>
---
 arch/arm64/boot/dts/qcom/msm8939.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8939.dtsi b/arch/arm64/boot/dts/qcom/msm8939.dtsi
index 29f6bd9df2eb..e0521a060cf8 100644
--- a/arch/arm64/boot/dts/qcom/msm8939.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8939.dtsi
@@ -1439,6 +1439,8 @@ gpu: gpu@1c00000 {
 			power-domains = <&gcc OXILI_GDSC>;
 			operating-points-v2 = <&opp_table>;
 			iommus = <&gpu_iommu 1>, <&gpu_iommu 2>;
+			#cooling-cells = <2>;
+
 			status = "disabled";
 
 			opp_table: opp-table {
@@ -2468,6 +2470,13 @@ gpu-thermal {
 
 			thermal-sensors = <&tsens 3>;
 
+			cooling-maps {
+				map0 {
+					trip = <&gpu_alert0>;
+					cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+
 			trips {
 				gpu_alert0: trip-point0 {
 					temperature = <75000>;

-- 
2.43.0