regulator: rn5t618: Do not index regulator_desc arrays by id
[muen/linux.git] / drivers / regulator / rn5t618-regulator.c
1 /*
2  * Regulator driver for Ricoh RN5T618 PMIC
3  *
4  * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * You should have received a copy of the GNU General Public License
11  * along with this program. If not, see <http://www.gnu.org/licenses/>.
12  */
13
14 #include <linux/mfd/rn5t618.h>
15 #include <linux/module.h>
16 #include <linux/of.h>
17 #include <linux/platform_device.h>
18 #include <linux/regmap.h>
19 #include <linux/regulator/driver.h>
20 #include <linux/regulator/of_regulator.h>
21
22 static const struct regulator_ops rn5t618_reg_ops = {
23         .enable                 = regulator_enable_regmap,
24         .disable                = regulator_disable_regmap,
25         .is_enabled             = regulator_is_enabled_regmap,
26         .set_voltage_sel        = regulator_set_voltage_sel_regmap,
27         .get_voltage_sel        = regulator_get_voltage_sel_regmap,
28         .list_voltage           = regulator_list_voltage_linear,
29 };
30
31 #define REG(rid, ereg, emask, vreg, vmask, min, max, step)              \
32         {                                                               \
33                 .name           = #rid,                                 \
34                 .of_match       = of_match_ptr(#rid),                   \
35                 .regulators_node = of_match_ptr("regulators"),          \
36                 .id             = RN5T618_##rid,                        \
37                 .type           = REGULATOR_VOLTAGE,                    \
38                 .owner          = THIS_MODULE,                          \
39                 .ops            = &rn5t618_reg_ops,                     \
40                 .n_voltages     = ((max) - (min)) / (step) + 1,         \
41                 .min_uV         = (min),                                \
42                 .uV_step        = (step),                               \
43                 .enable_reg     = RN5T618_##ereg,                       \
44                 .enable_mask    = (emask),                              \
45                 .vsel_reg       = RN5T618_##vreg,                       \
46                 .vsel_mask      = (vmask),                              \
47         }
48
49 static struct regulator_desc rn5t567_regulators[] = {
50         /* DCDC */
51         REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
52         REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
53         REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
54         REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),
55         /* LDO */
56         REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
57         REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
58         REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),
59         REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
60         REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),
61         /* LDO RTC */
62         REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1200000, 3500000, 25000),
63         REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
64 };
65
66 static struct regulator_desc rn5t618_regulators[] = {
67         /* DCDC */
68         REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
69         REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
70         REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
71         /* LDO */
72         REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
73         REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
74         REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 600000, 3500000, 25000),
75         REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
76         REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 900000, 3500000, 25000),
77         /* LDO RTC */
78         REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
79         REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
80 };
81
82 static struct regulator_desc rc5t619_regulators[] = {
83         /* DCDC */
84         REG(DCDC1, DC1CTL, BIT(0), DC1DAC, 0xff, 600000, 3500000, 12500),
85         REG(DCDC2, DC2CTL, BIT(0), DC2DAC, 0xff, 600000, 3500000, 12500),
86         REG(DCDC3, DC3CTL, BIT(0), DC3DAC, 0xff, 600000, 3500000, 12500),
87         REG(DCDC4, DC4CTL, BIT(0), DC4DAC, 0xff, 600000, 3500000, 12500),
88         REG(DCDC5, DC5CTL, BIT(0), DC5DAC, 0xff, 600000, 3500000, 12500),
89         /* LDO */
90         REG(LDO1, LDOEN1, BIT(0), LDO1DAC, 0x7f, 900000, 3500000, 25000),
91         REG(LDO2, LDOEN1, BIT(1), LDO2DAC, 0x7f, 900000, 3500000, 25000),
92         REG(LDO3, LDOEN1, BIT(2), LDO3DAC, 0x7f, 900000, 3500000, 25000),
93         REG(LDO4, LDOEN1, BIT(3), LDO4DAC, 0x7f, 900000, 3500000, 25000),
94         REG(LDO5, LDOEN1, BIT(4), LDO5DAC, 0x7f, 600000, 3500000, 25000),
95         REG(LDO6, LDOEN1, BIT(5), LDO6DAC, 0x7f, 600000, 3500000, 25000),
96         REG(LDO7, LDOEN1, BIT(6), LDO7DAC, 0x7f, 900000, 3500000, 25000),
97         REG(LDO8, LDOEN1, BIT(7), LDO8DAC, 0x7f, 900000, 3500000, 25000),
98         REG(LDO9, LDOEN2, BIT(0), LDO9DAC, 0x7f, 900000, 3500000, 25000),
99         REG(LDO10, LDOEN2, BIT(0), LDO10DAC, 0x7f, 900000, 3500000, 25000),
100         /* LDO RTC */
101         REG(LDORTC1, LDOEN2, BIT(4), LDORTCDAC, 0x7f, 1700000, 3500000, 25000),
102         REG(LDORTC2, LDOEN2, BIT(5), LDORTC2DAC, 0x7f, 900000, 3500000, 25000),
103 };
104
105 static int rn5t618_regulator_probe(struct platform_device *pdev)
106 {
107         struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
108         struct regulator_config config = { };
109         struct regulator_dev *rdev;
110         struct regulator_desc *regulators;
111         int i;
112         int num_regulators = 0;
113
114         switch (rn5t618->variant) {
115         case RN5T567:
116                 regulators = rn5t567_regulators;
117                 num_regulators = ARRAY_SIZE(rn5t567_regulators);
118                 break;
119         case RN5T618:
120                 regulators = rn5t618_regulators;
121                 num_regulators = ARRAY_SIZE(rn5t618_regulators);
122                 break;
123         case RC5T619:
124                 regulators = rc5t619_regulators;
125                 num_regulators = ARRAY_SIZE(rc5t619_regulators);
126                 break;
127         default:
128                 return -EINVAL;
129         }
130
131         config.dev = pdev->dev.parent;
132         config.regmap = rn5t618->regmap;
133
134         for (i = 0; i < num_regulators; i++) {
135                 rdev = devm_regulator_register(&pdev->dev,
136                                                &regulators[i],
137                                                &config);
138                 if (IS_ERR(rdev)) {
139                         dev_err(&pdev->dev, "failed to register %s regulator\n",
140                                 regulators[i].name);
141                         return PTR_ERR(rdev);
142                 }
143         }
144
145         return 0;
146 }
147
148 static struct platform_driver rn5t618_regulator_driver = {
149         .probe = rn5t618_regulator_probe,
150         .driver = {
151                 .name   = "rn5t618-regulator",
152         },
153 };
154
155 module_platform_driver(rn5t618_regulator_driver);
156
157 MODULE_AUTHOR("Beniamino Galvani <b.galvani@gmail.com>");
158 MODULE_DESCRIPTION("RN5T618 regulator driver");
159 MODULE_LICENSE("GPL v2");