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
  57 int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
  58 int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
  59 int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
  60 int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
  61 int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
  62 #else
  63 static inline
  64 int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
  65 {
  66         return 0;
  67 }
  68
  69 static inline
  70 int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
  71 {
  72         return 0;
  73 }
  74
  75 static inline
  76 int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
  77 {
  78         return 0;
  79 }
  80
  81 static inline
  82 int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
  83 {
  84         return 0;
  85 }
  86
  87 static inline
  88 int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
  89 {
  90         return 0;
  91 }
  92 #endif
  93 #endif