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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
* mx25-3stack-pmic-mc34704.c -- i.MX25 3STACK Driver for MC34704 PMIC
*/
/*
* Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/pmic_external.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/mc34704/core.h>
#include "iomux.h"
/*
* Convenience conversion.
* Here atm, maybe there is somewhere better for this.
*/
#define mV_to_uV(mV) (mV * 1000)
#define uV_to_mV(uV) (uV / 1000)
#define V_to_uV(V) (mV_to_uV(V * 1000))
#define uV_to_V(uV) (uV_to_mV(uV) / 1000)
struct mc34704;
static struct regulator_consumer_supply rcpu_consumers[] = {
{
/* sgtl5000 */
.supply = "VDDA",
.dev_name = "0-000a",
},
};
static struct regulator_consumer_supply rddr_consumers[] = {
{
/* sgtl5000 */
.supply = "VDDIO",
.dev_name = "0-000a",
},
};
static struct regulator_init_data rbklt_init = {
.constraints = {
.name = "REG1_BKLT",
.min_uV =
mV_to_uV(REG1_V_MV * (1000 + REG1_DVS_MIN_PCT * 10) /
1000),
.max_uV =
mV_to_uV(REG1_V_MV * (1000 + REG1_DVS_MAX_PCT * 10) /
1000),
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
}
};
static struct regulator_init_data rcpu_init = {
.constraints = {
.name = "REG2_CPU",
.min_uV =
mV_to_uV(REG2_V_MV * (1000 + REG2_DVS_MIN_PCT * 10) /
1000),
.max_uV =
mV_to_uV(REG2_V_MV * (1000 + REG2_DVS_MAX_PCT * 10) /
1000),
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
},
.num_consumer_supplies = ARRAY_SIZE(rcpu_consumers),
.consumer_supplies = rcpu_consumers,
};
static struct regulator_init_data rcore_init = {
.constraints = {
.name = "REG3_CORE",
.min_uV =
mV_to_uV(REG3_V_MV * (1000 + REG3_DVS_MIN_PCT * 10) /
1000),
.max_uV =
mV_to_uV(REG3_V_MV * (1000 + REG3_DVS_MAX_PCT * 10) /
1000),
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
}
};
static struct regulator_init_data rddr_init = {
.constraints = {
.name = "REG4_DDR",
.min_uV =
mV_to_uV(REG4_V_MV * (1000 + REG4_DVS_MIN_PCT * 10) /
1000),
.max_uV =
mV_to_uV(REG4_V_MV * (1000 + REG4_DVS_MAX_PCT * 10) /
1000),
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
},
.num_consumer_supplies = ARRAY_SIZE(rddr_consumers),
.consumer_supplies = rddr_consumers,
};
static struct regulator_init_data rpers_init = {
.constraints = {
.name = "REG5_PERS",
.min_uV =
mV_to_uV(REG5_V_MV * (1000 + REG5_DVS_MIN_PCT * 10) /
1000),
.max_uV =
mV_to_uV(REG5_V_MV * (1000 + REG5_DVS_MAX_PCT * 10) /
1000),
.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
}
};
static int mc34704_regulator_init(struct mc34704 *mc34704)
{
mc34704_register_regulator(mc34704, MC34704_BKLT, &rbklt_init);
mc34704_register_regulator(mc34704, MC34704_CPU, &rcpu_init);
mc34704_register_regulator(mc34704, MC34704_CORE, &rcore_init);
mc34704_register_regulator(mc34704, MC34704_DDR, &rddr_init);
mc34704_register_regulator(mc34704, MC34704_PERS, &rpers_init);
return 0;
}
static struct mc34704_platform_data mc34704_plat = {
.init = mc34704_regulator_init,
};
static struct i2c_board_info __initdata mc34704_i2c_device = {
.type = "mc34704",
.addr = 0x54,
.platform_data = &mc34704_plat,
};
int __init mx25_3stack_init_mc34704(void)
{
return i2c_register_board_info(0, &mc34704_i2c_device, 1);
}
|
