From f7fd6d04c1046107a87a0fc883ed044cf8b877a1 Mon Sep 17 00:00:00 2001 From: Konrad Dybcio Date: Fri, 10 May 2024 14:58:31 +0200 Subject: [PATCH] arm64: dts: qcom: sc8280xp: Throttle the GPU when overheating Add an 85C passive trip point with 1C of hysteresis to ensure the thermal framework takes sufficient action to prevent reaching junction temperature. Also, add passive polling to ensure more than one temperature change event is recorded. Fixes: 014bbc990e27 ("arm64: dts: qcom: sc8280xp: Introduce additional tsens instances") Signed-off-by: Konrad Dybcio Link: https://lore.kernel.org/r/20240510-topic-gpus_are_cool_now-v1-2-ababc269a438@linaro.org Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi index 82c601ef3369..80a57aa22839 100644 --- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi @@ -6004,10 +6004,25 @@ }; gpu-thermal { + polling-delay-passive = <250>; + thermal-sensors = <&tsens2 2>; + cooling-maps { + map0 { + trip = <&gpu_alert0>; + cooling-device = <&gpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + trips { - gpu-crit { + gpu_alert0: trip-point0 { + temperature = <85000>; + hysteresis = <1000>; + type = "passive"; + }; + + trip-point1 { temperature = <110000>; hysteresis = <1000>; type = "critical";