arch/arm/dts/rk3288-thermal.dtsi

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree Source for RK3288 SoC thermal
   4  *
   5  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
   6  */
   7
   8 #include <dt-bindings/thermal/thermal.h>
   9
  10 reserve_thermal: reserve_thermal {
  11         polling-delay-passive = <1000>; /* milliseconds */
  12         polling-delay = <5000>; /* milliseconds */
  13
  14                         /* sensor       ID */
  15         thermal-sensors = <&tsadc       0>;
  16
  17 };
  18
  19 cpu_thermal: cpu_thermal {
  20         polling-delay-passive = <100>; /* milliseconds */
  21         polling-delay = <5000>; /* milliseconds */
  22
  23                         /* sensor       ID */
  24         thermal-sensors = <&tsadc       1>;
  25         linux,hwmon;
  26
  27         trips {
  28                 cpu_alert0: cpu_alert0 {
  29                         temperature = <70000>; /* millicelsius */
  30                         hysteresis = <2000>; /* millicelsius */
  31                         type = "passive";
  32                 };
  33                 cpu_alert1: cpu_alert1 {
  34                         temperature = <75000>; /* millicelsius */
  35                         hysteresis = <2000>; /* millicelsius */
  36                         type = "passive";
  37                 };
  38                 cpu_crit: cpu_crit {
  39                         temperature = <100000>; /* millicelsius */
  40                         hysteresis = <2000>; /* millicelsius */
  41                         type = "critical";
  42                 };
  43         };
  44
  45         cooling-maps {
  46                 map0 {
  47                         trip = <&cpu_alert0>;
  48                         cooling-device =
  49                                 <&cpu0 THERMAL_NO_LIMIT 6>;
  50                 };
  51                 map1 {
  52                         trip = <&cpu_alert1>;
  53                         cooling-device =
  54                                 <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
  55                 };
  56         };
  57 };
  58
  59 gpu_thermal: gpu_thermal {
  60         polling-delay-passive = <100>; /* milliseconds */
  61         polling-delay = <5000>; /* milliseconds */
  62
  63                         /* sensor       ID */
  64         thermal-sensors = <&tsadc       2>;
  65         linux,hwmon;
  66
  67         trips {
  68                 gpu_alert0: gpu_alert0 {
  69                         temperature = <80000>; /* millicelsius */
  70                         hysteresis = <2000>; /* millicelsius */
  71                         type = "passive";
  72                 };
  73                 gpu_crit: gpu_crit {
  74                         temperature = <100000>; /* millicelsius */
  75                         hysteresis = <2000>; /* millicelsius */
  76                         type = "critical";
  77                 };
  78         };
  79
  80         cooling-maps {
  81                 map0 {
  82                         trip = <&gpu_alert0>;
  83                         cooling-device =
  84                                 <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
  85                 };
  86         };
  87 };