arch/arm/boot/dts/rk3288-thermal.dtsi

   1 /*
   2  * Device Tree Source for RK3288 SoC thermal
   3  *
   4  * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
   5  *
   6  * This file is dual-licensed: you can use it either under the terms
   7  * of the GPL or the X11 license, at your option. Note that this dual
   8  * licensing only applies to this file, and not this project as a
   9  * whole.
  10  *
  11  *  a) This file is free software; you can redistribute it and/or
  12  *     modify it under the terms of the GNU General Public License as
  13  *     published by the Free Software Foundation; either version 2 of the
  14  *     License, or (at your option) any later version.
  15  *
  16  *     This file is distributed in the hope that it will be useful,
  17  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *     GNU General Public License for more details.
  20  *
  21  * Or, alternatively,
  22  *
  23  *  b) Permission is hereby granted, free of charge, to any person
  24  *     obtaining a copy of this software and associated documentation
  25  *     files (the "Software"), to deal in the Software without
  26  *     restriction, including without limitation the rights to use,
  27  *     copy, modify, merge, publish, distribute, sublicense, and/or
  28  *     sell copies of the Software, and to permit persons to whom the
  29  *     Software is furnished to do so, subject to the following
  30  *     conditions:
  31  *
  32  *     The above copyright notice and this permission notice shall be
  33  *     included in all copies or substantial portions of the Software.
  34  *
  35  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  36  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  37  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  38  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  39  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  40  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  41  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  42  *     OTHER DEALINGS IN THE SOFTWARE.
  43  */
  44
  45 #include <dt-bindings/thermal/thermal.h>
  46
  47 reserve_thermal: reserve_thermal {
  48         polling-delay-passive = <1000>; /* milliseconds */
  49         polling-delay = <5000>; /* milliseconds */
  50
  51         thermal-sensors = <&tsadc 0>;
  52 };
  53
  54 cpu_thermal: cpu_thermal {
  55         polling-delay-passive = <1000>; /* milliseconds */
  56         polling-delay = <5000>; /* milliseconds */
  57
  58         thermal-sensors = <&tsadc 1>;
  59
  60         trips {
  61                 cpu_alert0: cpu_alert0 {
  62                         temperature = <70000>; /* millicelsius */
  63                         hysteresis = <2000>; /* millicelsius */
  64                         type = "passive";
  65                 };
  66                 cpu_crit: cpu_crit {
  67                         temperature = <90000>; /* millicelsius */
  68                         hysteresis = <2000>; /* millicelsius */
  69                         type = "critical";
  70                 };
  71         };
  72
  73         cooling-maps {
  74                 map0 {
  75                         trip = <&cpu_alert0>;
  76                         cooling-device =
  77                                 <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
  78                 };
  79         };
  80 };
  81
  82 gpu_thermal: gpu_thermal {
  83         polling-delay-passive = <1000>; /* milliseconds */
  84         polling-delay = <5000>; /* milliseconds */
  85
  86         thermal-sensors = <&tsadc 2>;
  87
  88         trips {
  89                 gpu_alert0: gpu_alert0 {
  90                         temperature = <70000>; /* millicelsius */
  91                         hysteresis = <2000>; /* millicelsius */
  92                         type = "passive";
  93                 };
  94                 gpu_crit: gpu_crit {
  95                         temperature = <90000>; /* millicelsius */
  96                         hysteresis = <2000>; /* millicelsius */
  97                         type = "critical";
  98                 };
  99         };
 100
 101         cooling-maps {
 102                 map0 {
 103                         trip = <&gpu_alert0>;
 104                         cooling-device =
 105                                 <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 106                 };
 107         };
 108 };