LXR linux/drivers/thermal/ti-soc-thermal/ti-thermal.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * OMAP thermal definitions
   4 *
   5 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
   6 * Contact:
   7 *   Eduardo Valentin <eduardo.valentin@ti.com>
   8 */
   9#ifndef __TI_THERMAL_H
  10#define __TI_THERMAL_H
  11
  12#include "ti-bandgap.h"
  13
  14/* PCB sensor calculation constants */
  15#define OMAP_GRADIENT_SLOPE_W_PCB_4430                          0
  16#define OMAP_GRADIENT_CONST_W_PCB_4430                          20000
  17#define OMAP_GRADIENT_SLOPE_W_PCB_4460                          1142
  18#define OMAP_GRADIENT_CONST_W_PCB_4460                          -393
  19#define OMAP_GRADIENT_SLOPE_W_PCB_4470                          1063
  20#define OMAP_GRADIENT_CONST_W_PCB_4470                          -477
  21
  22#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU                      100
  23#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU                      484
  24#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU                      464
  25#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU                      -5102
  26
  27#define DRA752_GRADIENT_SLOPE_W_PCB                             0
  28#define DRA752_GRADIENT_CONST_W_PCB                             2000
  29
  30/* trip points of interest in milicelsius (at hotspot level) */
  31#define OMAP_TRIP_COLD                                          100000
  32#define OMAP_TRIP_HOT                                           110000
  33#define OMAP_TRIP_SHUTDOWN                                      125000
  34#define OMAP_TRIP_NUMBER                                        2
  35#define OMAP_TRIP_STEP                                                  \
  36        ((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))
  37
  38/* Update rates */
  39#define FAST_TEMP_MONITORING_RATE                               250
  40
  41/* helper macros */
  42/**
  43 * ti_thermal_get_trip_value - returns trip temperature based on index
  44 * @i:  trip index
  45 */
  46#define ti_thermal_get_trip_value(i)                                    \
  47        (OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
  48
  49/**
  50 * ti_thermal_is_valid_trip - check for trip index
  51 * @i:  trip index
  52 */
  53#define ti_thermal_is_valid_trip(trip)                          \
  54        ((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
  55
  56#ifdef CONFIG_TI_THERMAL
  57int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
  58int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
  59int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
  60int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
  61int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
  62#else
  63static inline
  64int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
  65{
  66        return 0;
  67}
  68
  69static inline
  70int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
  71{
  72        return 0;
  73}
  74
  75static inline
  76int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
  77{
  78        return 0;
  79}
  80
  81static inline
  82int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
  83{
  84        return 0;
  85}
  86
  87static inline
  88int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
  89{
  90        return 0;
  91}
  92#endif
  93#endif
  94