From 8ff3b9b40c3f85892e8e6c5b43b1c6ce77400275 Mon Sep 17 00:00:00 2001 From: Caesar Wang Date: Fri, 13 Feb 2015 11:41:43 +0800 Subject: [PATCH] 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 340406652186..651b962e3d53 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 */ @@ -73,6 +78,11 @@ cpu_thermal: cpu_thermal { cooling-maps { map0 { trip = <&cpu_alert0>; + cooling-device = + <&cpu0 THERMAL_NO_LIMIT 6>; + }; + map1 { + trip = <&cpu_alert1>; cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; @@ -80,7 +90,7 @@ cpu_thermal: cpu_thermal { }; gpu_thermal: gpu_thermal { - polling-delay-passive = <1000>; /* milliseconds */ + polling-delay-passive = <100>; /* milliseconds */ polling-delay = <5000>; /* milliseconds */ thermal-sensors = <&tsadc 2>; -- 2.20.1