arch/arm/boot/dts/omap3-cpu-thermal.dtsi

   1 /*
   2  * Device Tree Source for OMAP3 SoC CPU thermal
   3  *
   4  * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
   5  *
   6  * This file is licensed under the terms of the GNU General Public License
   7  * version 2.  This program is licensed "as is" without any warranty of any
   8  * kind, whether express or implied.
   9  */
  10
  11 #include <dt-bindings/thermal/thermal.h>
  12
  13 cpu_thermal: cpu_thermal {
  14         polling-delay-passive = <250>; /* milliseconds */
  15         polling-delay = <1000>; /* milliseconds */
  16         coefficients = <0 20000>;
  17
  18                         /* sensor       ID */
  19         thermal-sensors = <&bandgap     0>;
  20
  21         cpu_trips: trips {
  22                 cpu_alert0: cpu_alert {
  23                         temperature = <80000>; /* millicelsius */
  24                         hysteresis = <2000>; /* millicelsius */
  25                         type = "passive";
  26                 };
  27                 cpu_crit: cpu_crit {
  28                         temperature = <90000>; /* millicelsius */
  29                         hysteresis = <2000>; /* millicelsius */
  30                         type = "critical";
  31                 };
  32         };
  33
  34         cpu_cooling_maps: cooling-maps {
  35                 map0 {
  36                         trip = <&cpu_alert0>;
  37                         cooling-device =
  38                                 <&cpu THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
  39                 };
  40         };
  41 };