Linux-libre 4.6.2-gnu

1 files changed, 45 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi b/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi
index 2b289d7c0..3e4c4ad96 100644
--- a/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi
+++ b/arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi
@@ -16,7 +16,7 @@
 	thermal-zones {
 		cpu0_thermal: cpu0-thermal {
 			thermal-sensors = <&tmu_cpu0 0>;
-			polling-delay-passive = <0>;
+			polling-delay-passive = <250>;
 			polling-delay = <0>;
 			trips {
 				cpu_alert0: cpu-alert-0 {
@@ -39,6 +39,23 @@
 					hysteresis = <0>; /* millicelsius */
 					type = "critical";
 				};
+				/*
+				 * Exyunos542x support only 4 trip-points
+				 * so for these polling mode is required.
+				 * Start polling at temperature level of last
+				 * interrupt-driven trip: cpu_alert2
+				 */
+				cpu_alert3: cpu-alert-3 {
+					temperature = <70000>; /* millicelsius */
+					hysteresis = <10000>; /* millicelsius */
+					type = "passive";
+				};
+				cpu_alert4: cpu-alert-4 {
+					temperature = <85000>; /* millicelsius */
+					hysteresis = <10000>; /* millicelsius */
+					type = "passive";
+				};
+
 			};
 			cooling-maps {
 				map0 {
@@ -53,6 +70,33 @@
 				     trip = <&cpu_alert2>;
 				     cooling-device = <&fan0 2 3>;
 				};
+				/*
+				 * When reaching cpu_alert3, reduce CPU
+				 * by 2 steps. On Exynos5422/5800 that would
+				 * be: 1500 MHz and 1100 MHz.
+				 */
+				map3 {
+				     trip = <&cpu_alert3>;
+				     cooling-device = <&cpu0 0 2>;
+				};
+				map4 {
+				     trip = <&cpu_alert3>;
+				     cooling-device = <&cpu4 0 2>;
+				};
+
+				/*
+				 * When reaching cpu_alert4, reduce CPU
+				 * further, down to 600 MHz (11 steps for big,
+				 * 7 steps for LITTLE).
+				 */
+				map5 {
+				     trip = <&cpu_alert4>;
+				     cooling-device = <&cpu0 3 7>;
+				};
+				map6 {
+				     trip = <&cpu_alert4>;
+				     cooling-device = <&cpu4 3 11>;
+				};
 			};
 		};
 	};