regulator: palmas: Convert palmas_ops_smps to regulator_[get|set]_voltage_sel_regmap
[linux-3.10.git] / drivers / regulator / arizona-ldo1.c
1 /*
2  * arizona-ldo1.c  --  LDO1 supply for Arizona devices
3  *
4  * Copyright 2012 Wolfson Microelectronics PLC.
5  *
6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7  *
8  *  This program is free software; you can redistribute  it and/or modify it
9  *  under  the terms of  the GNU General  Public License as published by the
10  *  Free Software Foundation;  either version 2 of the  License, or (at your
11  *  option) any later version.
12  */
13
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/init.h>
17 #include <linux/bitops.h>
18 #include <linux/err.h>
19 #include <linux/platform_device.h>
20 #include <linux/regulator/driver.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/gpio.h>
23 #include <linux/slab.h>
24
25 #include <linux/mfd/arizona/core.h>
26 #include <linux/mfd/arizona/pdata.h>
27 #include <linux/mfd/arizona/registers.h>
28
29 struct arizona_ldo1 {
30         struct regulator_dev *regulator;
31         struct arizona *arizona;
32
33         struct regulator_consumer_supply supply;
34         struct regulator_init_data init_data;
35 };
36
37 static struct regulator_ops arizona_ldo1_ops = {
38         .list_voltage = regulator_list_voltage_linear,
39         .map_voltage = regulator_map_voltage_linear,
40         .get_voltage_sel = regulator_get_voltage_sel_regmap,
41         .set_voltage_sel = regulator_set_voltage_sel_regmap,
42         .get_bypass = regulator_get_bypass_regmap,
43         .set_bypass = regulator_set_bypass_regmap,
44 };
45
46 static const struct regulator_desc arizona_ldo1 = {
47         .name = "LDO1",
48         .supply_name = "LDOVDD",
49         .type = REGULATOR_VOLTAGE,
50         .ops = &arizona_ldo1_ops,
51
52         .vsel_reg = ARIZONA_LDO1_CONTROL_1,
53         .vsel_mask = ARIZONA_LDO1_VSEL_MASK,
54         .bypass_reg = ARIZONA_LDO1_CONTROL_1,
55         .bypass_mask = ARIZONA_LDO1_BYPASS,
56         .min_uV = 900000,
57         .uV_step = 50000,
58         .n_voltages = 6,
59
60         .owner = THIS_MODULE,
61 };
62
63 static const struct regulator_init_data arizona_ldo1_default = {
64         .constraints = {
65                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
66         },
67         .num_consumer_supplies = 1,
68 };
69
70 static __devinit int arizona_ldo1_probe(struct platform_device *pdev)
71 {
72         struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
73         struct regulator_config config = { };
74         struct arizona_ldo1 *ldo1;
75         int ret;
76
77         ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
78         if (ldo1 == NULL) {
79                 dev_err(&pdev->dev, "Unable to allocate private data\n");
80                 return -ENOMEM;
81         }
82
83         ldo1->arizona = arizona;
84
85         /*
86          * Since the chip usually supplies itself we provide some
87          * default init_data for it.  This will be overridden with
88          * platform data if provided.
89          */
90         ldo1->init_data = arizona_ldo1_default;
91         ldo1->init_data.consumer_supplies = &ldo1->supply;
92         ldo1->supply.supply = "DCVDD";
93         ldo1->supply.dev_name = dev_name(arizona->dev);
94
95         config.dev = arizona->dev;
96         config.driver_data = ldo1;
97         config.regmap = arizona->regmap;
98         config.ena_gpio = arizona->pdata.ldoena;
99
100         if (arizona->pdata.ldo1)
101                 config.init_data = arizona->pdata.ldo1;
102         else
103                 config.init_data = &ldo1->init_data;
104
105         ldo1->regulator = regulator_register(&arizona_ldo1, &config);
106         if (IS_ERR(ldo1->regulator)) {
107                 ret = PTR_ERR(ldo1->regulator);
108                 dev_err(arizona->dev, "Failed to register LDO1 supply: %d\n",
109                         ret);
110                 return ret;
111         }
112
113         platform_set_drvdata(pdev, ldo1);
114
115         return 0;
116 }
117
118 static __devexit int arizona_ldo1_remove(struct platform_device *pdev)
119 {
120         struct arizona_ldo1 *ldo1 = platform_get_drvdata(pdev);
121
122         regulator_unregister(ldo1->regulator);
123
124         return 0;
125 }
126
127 static struct platform_driver arizona_ldo1_driver = {
128         .probe = arizona_ldo1_probe,
129         .remove = __devexit_p(arizona_ldo1_remove),
130         .driver         = {
131                 .name   = "arizona-ldo1",
132                 .owner  = THIS_MODULE,
133         },
134 };
135
136 module_platform_driver(arizona_ldo1_driver);
137
138 /* Module information */
139 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
140 MODULE_DESCRIPTION("Arizona LDO1 driver");
141 MODULE_LICENSE("GPL");
142 MODULE_ALIAS("platform:arizona-ldo1");