arch/arm/boot/dts/exynos5422-cpu-thermal.dtsi

   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 = <0>;
  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                         cooling-maps {
  44                                 map0 {
  45                                      trip = <&cpu_alert0>;
  46                                      cooling-device = <&fan0 0 1>;
  47                                 };
  48                                 map1 {
  49                                      trip = <&cpu_alert1>;
  50                                      cooling-device = <&fan0 1 2>;
  51                                 };
  52                                 map2 {
  53                                      trip = <&cpu_alert2>;
  54                                      cooling-device = <&fan0 2 3>;
  55                                 };
  56                         };
  57                 };
  58         };
  59 };