linux-kernel - [PATCH 06/12] arm64: dts: qcom: sm6350: Update GPU thermal zone settings

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Message-Id: <20240510-topic-gpus_are_cool_now-v1-6-ababc269a438@linaro.org>
Date: Fri, 10 May 2024 14:58:35 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Johan Hovold <johan+linaro@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Bjorn Andersson <quic_bjorande@...cinc.com>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 06/12] arm64: dts: qcom: sm6350: Update GPU thermal zone
 settings

Lower the thresholds to something more reasonable and introduce a
passive polling delay to make sure more than one "passive" thermal point
is taken into account when throttling.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sm6350.dtsi | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
index abfaa1178a39..99813f380df0 100644
--- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
@@ -3177,18 +3177,20 @@ ddr-crit {
 		};
 
 		gpuss0-thermal {
+			polling-delay-passive = <250>;
+
 			thermal-sensors = <&tsens0 13>;
 
 			trips {
 				gpuss0_alert0: trip-point0 {
-					temperature = <95000>;
+					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
 
 				gpuss0-crit {
-					temperature = <115000>;
-					hysteresis = <0>;
+					temperature = <110000>;
+					hysteresis = <1000>;
 					type = "critical";
 				};
 			};
@@ -3202,18 +3204,20 @@ map0 {
 		};
 
 		gpuss1-thermal {
+			polling-delay-passive = <250>;
+
 			thermal-sensors = <&tsens0 14>;
 
 			trips {
 				gpuss1_alert0: trip-point0 {
-					temperature = <95000>;
+					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
 
 				gpuss1-crit {
-					temperature = <115000>;
-					hysteresis = <0>;
+					temperature = <110000>;
+					hysteresis = <1000>;
 					type = "critical";
 				};
 			};

-- 
2.40.1