arch/arm/boot/dts/omap4-cpu-thermal.dtsi

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Device Tree Source for OMAP4/5 SoC CPU thermal
   4  *
   5  * Copyright (C) 2013 Texas Instruments Incorporated - https://www.ti.com/
   6  * Contact: Eduardo Valentin <eduardo.valentin@ti.com>
   7  */
   8
   9 #include <dt-bindings/thermal/thermal.h>
  10
  11 cpu_thermal: cpu_thermal {
  12         polling-delay-passive = <250>; /* milliseconds */
  13         polling-delay = <1000>; /* milliseconds */
  14
  15         /*
  16          * See 44xx files for single sensor addressing, omap5 and dra7 need
  17          * also sensor ID for addressing.
  18          */
  19         thermal-sensors = <&bandgap     0>;
  20
  21         cpu_trips: trips {
  22                 cpu_alert0: cpu_alert {
  23                         temperature = <100000>; /* millicelsius */
  24                         hysteresis = <2000>; /* millicelsius */
  25                         type = "passive";
  26                 };
  27                 cpu_crit: cpu_crit {
  28                         temperature = <125000>; /* 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                                 <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
  39                 };
  40         };
  41 };