From: Caesar Wang <wxt@rock-chips.com>
Date: Fri, 13 Feb 2015 03:41:43 +0000 (+0800)
Subject: ARM: dts: rockchip: update the thermal management on rk3288
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8ff3b9b40c3f85892e8e6c5b43b1c6ce77400275;p=linux.git

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 <wxt@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@collabora.com>
---

diff --git a/arch/arm/boot/dts/rk3288-thermal.dtsi b/arch/arm/boot/dts/rk3288-thermal.dtsi
index 3404066521862..651b962e3d538 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>;