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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
// SPDX-License-Identifier: GPL-2.0+
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
static const struct regulator_ops max8893_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
static const struct regulator_desc max8893_regulators[] = {
{
.name = "BUCK",
.supply_name = "in-buck",
.of_match = of_match_ptr("buck"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x11,
.id = 6,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 800000,
.uV_step = 100000,
.vsel_reg = 0x4,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(7),
},
{
.name = "LDO1",
.supply_name = "in-ldo1",
.of_match = of_match_ptr("ldo1"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x12,
.id = 1,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1600000,
.uV_step = 100000,
.vsel_reg = 0x5,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(5),
},
{
.name = "LDO2",
.supply_name = "in-ldo2",
.of_match = of_match_ptr("ldo2"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x16,
.id = 2,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1200000,
.uV_step = 100000,
.vsel_reg = 0x6,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(4),
},
{
.name = "LDO3",
.supply_name = "in-ldo3",
.of_match = of_match_ptr("ldo3"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x12,
.id = 3,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 1600000,
.uV_step = 100000,
.vsel_reg = 0x7,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(3),
},
{
.name = "LDO4",
.supply_name = "in-ldo4",
.of_match = of_match_ptr("ldo4"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x1a,
.id = 4,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 800000,
.uV_step = 100000,
.vsel_reg = 0x8,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(2),
},
{
.name = "LDO5",
.supply_name = "in-ldo5",
.of_match = of_match_ptr("ldo5"),
.regulators_node = of_match_ptr("regulators"),
.n_voltages = 0x1a,
.id = 5,
.ops = &max8893_ops,
.type = REGULATOR_VOLTAGE,
.owner = THIS_MODULE,
.min_uV = 800000,
.uV_step = 100000,
.vsel_reg = 0x9,
.vsel_mask = 0x1f,
.enable_reg = 0x0,
.enable_mask = BIT(1),
}
};
static const struct regmap_config max8893_regmap = {
.reg_bits = 8,
.val_bits = 8,
};
static int max8893_probe_new(struct i2c_client *i2c)
{
int id, ret;
struct regulator_config config = {.dev = &i2c->dev};
struct regmap *regmap = devm_regmap_init_i2c(i2c, &max8893_regmap);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
return ret;
}
for (id = 0; id < ARRAY_SIZE(max8893_regulators); id++) {
struct regulator_dev *rdev;
rdev = devm_regulator_register(&i2c->dev,
&max8893_regulators[id],
&config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&i2c->dev, "failed to register %s: %d\n",
max8893_regulators[id].name, ret);
return ret;
}
}
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id max8893_dt_match[] = {
{ .compatible = "maxim,max8893" },
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(of, max8893_dt_match);
#endif
static const struct i2c_device_id max8893_ids[] = {
{ "max8893", 0 },
{ },
};
MODULE_DEVICE_TABLE(i2c, max8893_ids);
static struct i2c_driver max8893_driver = {
.probe = max8893_probe_new,
.driver = {
.name = "max8893",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
.of_match_table = of_match_ptr(max8893_dt_match),
},
.id_table = max8893_ids,
};
module_i2c_driver(max8893_driver);
MODULE_DESCRIPTION("Maxim MAX8893 PMIC driver");
MODULE_AUTHOR("Sergey Larin <cerg2010cerg2010@mail.ru>");
MODULE_LICENSE("GPL");
|
