From 6ae3ede9522850fc95d725764b2e7f5792b65ab2 Mon Sep 17 00:00:00 2001 From: Caesar Wang Date: Fri, 13 Feb 2015 11:41:43 +0800 Subject: [PATCH 1/2] ARM: dts: rockchip: update the thermal management on rk3288 In some cases the machine radiating is very poor,sometime the temperature is rising very quickly on heavy loading.So we need have more frequent polling and better granularity. Signed-off-by: Caesar Wang Signed-off-by: Heiko Stuebner --- arch/arm/boot/dts/rk3288-thermal.dtsi | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/rk3288-thermal.dtsi b/arch/arm/boot/dts/rk3288-thermal.dtsi index 3404066..651b962 100644 --- a/arch/arm/boot/dts/rk3288-thermal.dtsi +++ b/arch/arm/boot/dts/rk3288-thermal.dtsi @@ -52,7 +52,7 @@ reserve_thermal: reserve_thermal { }; cpu_thermal: cpu_thermal { - polling-delay-passive = <1000>; /* milliseconds */ + polling-delay-passive = <100>; /* milliseconds */ polling-delay = <5000>; /* milliseconds */ thermal-sensors = <&tsadc 1>; @@ -63,6 +63,11 @@ cpu_thermal: cpu_thermal { hysteresis = <2000>; /* millicelsius */ type = "passive"; }; + cpu_alert1: cpu_alert1 { + temperature = <75000>; /* millicelsius */ + hysteresis = <2000>; /* millicelsius */ + type = "passive"; + }; cpu_crit: cpu_crit { temperature = <90000>; /* millicelsius */ hysteresis = <2000>; /* millicelsius */ @@ -74,13 +79,18 @@ cpu_thermal: cpu_thermal { map0 { trip = <&cpu_alert0>; cooling-device = + <&cpu0 THERMAL_NO_LIMIT 6>; + }; + map1 { + trip = <&cpu_alert1>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; }; }; gpu_thermal: gpu_thermal { - polling-delay-passive = <1000>; /* milliseconds */ + polling-delay-passive = <100>; /* milliseconds */ polling-delay = <5000>; /* milliseconds */ thermal-sensors = <&tsadc 2>; -- 2.6.1