blob: f8b7ffea6194f25662e5919463896ba936392861 [file] [log] [blame]
Eduardo Valentin445eaf82012-07-12 19:02:30 +03001/*
2 * OMAP thermal definitions
3 *
4 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
5 * Contact:
6 * Eduardo Valentin <eduardo.valentin@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
Eduardo Valentin097ca6a2013-03-19 10:54:20 -040023#ifndef __TI_THERMAL_H
24#define __TI_THERMAL_H
Eduardo Valentin445eaf82012-07-12 19:02:30 +030025
Eduardo Valentin7372add2013-03-19 10:54:19 -040026#include "ti-bandgap.h"
Eduardo Valentin445eaf82012-07-12 19:02:30 +030027
28/* sensors gradient and offsets */
Eduardo Valentinb763fda2013-04-08 08:19:10 -040029#define OMAP_GRADIENT_SLOPE_4430 0
30#define OMAP_GRADIENT_CONST_4430 20000
Eduardo Valentin445eaf82012-07-12 19:02:30 +030031#define OMAP_GRADIENT_SLOPE_4460 348
32#define OMAP_GRADIENT_CONST_4460 -9301
33#define OMAP_GRADIENT_SLOPE_4470 308
34#define OMAP_GRADIENT_CONST_4470 -7896
35
Eduardo Valentin21bf2202013-04-08 08:19:11 -040036#define OMAP_GRADIENT_SLOPE_5430_CPU 65
37#define OMAP_GRADIENT_CONST_5430_CPU -1791
38#define OMAP_GRADIENT_SLOPE_5430_GPU 117
39#define OMAP_GRADIENT_CONST_5430_GPU -2992
Eduardo Valentin445eaf82012-07-12 19:02:30 +030040
Eduardo Valentin8926fa42013-06-03 20:31:55 +000041#define DRA752_GRADIENT_SLOPE 0
42#define DRA752_GRADIENT_CONST 2000
43
Eduardo Valentin445eaf82012-07-12 19:02:30 +030044/* PCB sensor calculation constants */
Eduardo Valentinb763fda2013-04-08 08:19:10 -040045#define OMAP_GRADIENT_SLOPE_W_PCB_4430 0
46#define OMAP_GRADIENT_CONST_W_PCB_4430 20000
Eduardo Valentin445eaf82012-07-12 19:02:30 +030047#define OMAP_GRADIENT_SLOPE_W_PCB_4460 1142
48#define OMAP_GRADIENT_CONST_W_PCB_4460 -393
49#define OMAP_GRADIENT_SLOPE_W_PCB_4470 1063
50#define OMAP_GRADIENT_CONST_W_PCB_4470 -477
51
Eduardo Valentin21bf2202013-04-08 08:19:11 -040052#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU 100
53#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU 484
54#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU 464
55#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU -5102
Eduardo Valentin445eaf82012-07-12 19:02:30 +030056
Eduardo Valentin8926fa42013-06-03 20:31:55 +000057#define DRA752_GRADIENT_SLOPE_W_PCB 0
58#define DRA752_GRADIENT_CONST_W_PCB 2000
59
Eduardo Valentin445eaf82012-07-12 19:02:30 +030060/* trip points of interest in milicelsius (at hotspot level) */
61#define OMAP_TRIP_COLD 100000
62#define OMAP_TRIP_HOT 110000
63#define OMAP_TRIP_SHUTDOWN 125000
64#define OMAP_TRIP_NUMBER 2
65#define OMAP_TRIP_STEP \
66 ((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))
67
68/* Update rates */
69#define FAST_TEMP_MONITORING_RATE 250
70
71/* helper macros */
72/**
Eduardo Valentin03e859d2013-03-19 10:54:21 -040073 * ti_thermal_get_trip_value - returns trip temperature based on index
Eduardo Valentin445eaf82012-07-12 19:02:30 +030074 * @i: trip index
75 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -040076#define ti_thermal_get_trip_value(i) \
Eduardo Valentin445eaf82012-07-12 19:02:30 +030077 (OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
78
79/**
Eduardo Valentin03e859d2013-03-19 10:54:21 -040080 * ti_thermal_is_valid_trip - check for trip index
Eduardo Valentin445eaf82012-07-12 19:02:30 +030081 * @i: trip index
82 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -040083#define ti_thermal_is_valid_trip(trip) \
Eduardo Valentin445eaf82012-07-12 19:02:30 +030084 ((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
85
Eduardo Valentin097ca6a2013-03-19 10:54:20 -040086#ifdef CONFIG_TI_THERMAL
Eduardo Valentin03e859d2013-03-19 10:54:21 -040087int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
88int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
Eduardo Valentin8c99c162013-04-01 12:04:35 -040089int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
Eduardo Valentin03e859d2013-03-19 10:54:21 -040090int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
91int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
Eduardo Valentin445eaf82012-07-12 19:02:30 +030092#else
93static inline
Eduardo Valentin03e859d2013-03-19 10:54:21 -040094int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
Eduardo Valentin445eaf82012-07-12 19:02:30 +030095{
96 return 0;
97}
98
99static inline
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400100int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
Eduardo Valentin445eaf82012-07-12 19:02:30 +0300101{
102 return 0;
103}
104
105static inline
Eduardo Valentin8c99c162013-04-01 12:04:35 -0400106int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
107{
108 return 0;
109}
110
111static inline
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400112int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
Eduardo Valentin445eaf82012-07-12 19:02:30 +0300113{
114 return 0;
115}
116
117static inline
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400118int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
Eduardo Valentin445eaf82012-07-12 19:02:30 +0300119{
120 return 0;
121}
122#endif
123#endif