summaryrefslogtreecommitdiffstats
path: root/drivers/thermal/ti-soc-thermal/ti-thermal.h
blob: 8e85ca973967d9525f41b0747ebd0f4725d1b4dc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
/*
 * OMAP thermal definitions
 *
 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
 * Contact:
 *   Eduardo Valentin <eduardo.valentin@ti.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */
#ifndef __TI_THERMAL_H
#define __TI_THERMAL_H

#include "ti-bandgap.h"

/* PCB sensor calculation constants */
#define OMAP_GRADIENT_SLOPE_W_PCB_4430				0
#define OMAP_GRADIENT_CONST_W_PCB_4430				20000
#define OMAP_GRADIENT_SLOPE_W_PCB_4460				1142
#define OMAP_GRADIENT_CONST_W_PCB_4460				-393
#define OMAP_GRADIENT_SLOPE_W_PCB_4470				1063
#define OMAP_GRADIENT_CONST_W_PCB_4470				-477

#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU			100
#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU			484
#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU			464
#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU			-5102

#define DRA752_GRADIENT_SLOPE_W_PCB				0
#define DRA752_GRADIENT_CONST_W_PCB				2000

/* trip points of interest in milicelsius (at hotspot level) */
#define OMAP_TRIP_COLD						100000
#define OMAP_TRIP_HOT						110000
#define OMAP_TRIP_SHUTDOWN					125000
#define OMAP_TRIP_NUMBER					2
#define OMAP_TRIP_STEP							\
	((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))

/* Update rates */
#define FAST_TEMP_MONITORING_RATE				250

/* helper macros */
/**
 * ti_thermal_get_trip_value - returns trip temperature based on index
 * @i:	trip index
 */
#define ti_thermal_get_trip_value(i)					\
	(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))

/**
 * ti_thermal_is_valid_trip - check for trip index
 * @i:	trip index
 */
#define ti_thermal_is_valid_trip(trip)				\
	((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)

#ifdef CONFIG_TI_THERMAL
int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
#else
static inline
int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
{
	return 0;
}

static inline
int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
{
	return 0;
}

static inline
int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
{
	return 0;
}

static inline
int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
{
	return 0;
}

static inline
int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
{
	return 0;
}
#endif
#endif
OpenPOWER on IntegriCloud