1/*
  2 * Device tree sources for Exynos5422 thermal zone
  3 *
  4 * Copyright (c) 2015 Lukasz Majewski <l.majewski@samsung.com>
  5 *			Anand Moon <linux.amoon@gmail.com>
  6 *
  7 * This program is free software; you can redistribute it and/or modify
  8 * it under the terms of the GNU General Public License version 2 as
  9 * published by the Free Software Foundation.
 10 *
 11 */
 12
 13#include <dt-bindings/thermal/thermal.h>
 14
 15/ {
 16	thermal-zones {
 17		cpu0_thermal: cpu0-thermal {
 18			thermal-sensors = <&tmu_cpu0 0>;
 19			polling-delay-passive = <250>;
 20			polling-delay = <0>;
 21			trips {
 22				cpu_alert0: cpu-alert-0 {
 23					temperature = <50000>; /* millicelsius */
 24					hysteresis = <5000>; /* millicelsius */
 25					type = "active";
 26				};
 27				cpu_alert1: cpu-alert-1 {
 28					temperature = <60000>; /* millicelsius */
 29					hysteresis = <5000>; /* millicelsius */
 30					type = "active";
 31				};
 32				cpu_alert2: cpu-alert-2 {
 33					temperature = <70000>; /* millicelsius */
 34					hysteresis = <5000>; /* millicelsius */
 35					type = "active";
 36				};
 37				cpu_crit0: cpu-crit-0 {
 38					temperature = <120000>; /* millicelsius */
 39					hysteresis = <0>; /* millicelsius */
 40					type = "critical";
 41				};
 42				/*
 43				 * Exyunos542x support only 4 trip-points
 44				 * so for these polling mode is required.
 45				 * Start polling at temperature level of last
 46				 * interrupt-driven trip: cpu_alert2
 47				 */
 48				cpu_alert3: cpu-alert-3 {
 49					temperature = <70000>; /* millicelsius */
 50					hysteresis = <10000>; /* millicelsius */
 51					type = "passive";
 52				};
 53				cpu_alert4: cpu-alert-4 {
 54					temperature = <85000>; /* millicelsius */
 55					hysteresis = <10000>; /* millicelsius */
 56					type = "passive";
 57				};
 58
 59			};
 60			cooling-maps {
 61				map0 {
 62				     trip = <&cpu_alert0>;
 63				     cooling-device = <&fan0 0 1>;
 64				};
 65				map1 {
 66				     trip = <&cpu_alert1>;
 67				     cooling-device = <&fan0 1 2>;
 68				};
 69				map2 {
 70				     trip = <&cpu_alert2>;
 71				     cooling-device = <&fan0 2 3>;
 72				};
 73				/*
 74				 * When reaching cpu_alert3, reduce CPU
 75				 * by 2 steps. On Exynos5422/5800 that would
 76				 * be: 1500 MHz and 1100 MHz.
 77				 */
 78				map3 {
 79				     trip = <&cpu_alert3>;
 80				     cooling-device = <&cpu0 0 2>;
 81				};
 82				map4 {
 83				     trip = <&cpu_alert3>;
 84				     cooling-device = <&cpu4 0 2>;
 85				};
 86
 87				/*
 88				 * When reaching cpu_alert4, reduce CPU
 89				 * further, down to 600 MHz (11 steps for big,
 90				 * 7 steps for LITTLE).
 91				 */
 92				map5 {
 93				     trip = <&cpu_alert4>;
 94				     cooling-device = <&cpu0 3 7>;
 95				};
 96				map6 {
 97				     trip = <&cpu_alert4>;
 98				     cooling-device = <&cpu4 3 11>;
 99				};
100			};
101		};
102	};
103};