blob: 88f6dca53bacdab368c4830c752ee60fff66151a [file] [log] [blame]
Ashish Jangam28964342012-09-14 18:54:50 +05301 /* I2C access for DA9055 PMICs.
2 *
3 * Copyright(c) 2012 Dialog Semiconductor Ltd.
4 *
5 * Author: David Dajun Chen <dchen@diasemi.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 */
13
14#include <linux/module.h>
15#include <linux/device.h>
16#include <linux/i2c.h>
17#include <linux/err.h>
18
19#include <linux/mfd/da9055/core.h>
20
21static int __devinit da9055_i2c_probe(struct i2c_client *i2c,
22 const struct i2c_device_id *id)
23{
24 struct da9055 *da9055;
25 int ret;
26
27 da9055 = devm_kzalloc(&i2c->dev, sizeof(struct da9055), GFP_KERNEL);
28 if (!da9055)
29 return -ENOMEM;
30
31 da9055->regmap = devm_regmap_init_i2c(i2c, &da9055_regmap_config);
32 if (IS_ERR(da9055->regmap)) {
33 ret = PTR_ERR(da9055->regmap);
34 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
35 ret);
36 return ret;
37 }
38
39 da9055->dev = &i2c->dev;
40 da9055->chip_irq = i2c->irq;
41
42 i2c_set_clientdata(i2c, da9055);
43
44 return da9055_device_init(da9055);
45}
46
47static int __devexit da9055_i2c_remove(struct i2c_client *i2c)
48{
49 struct da9055 *da9055 = i2c_get_clientdata(i2c);
50
51 da9055_device_exit(da9055);
52
53 return 0;
54}
55
56static struct i2c_device_id da9055_i2c_id[] = {
57 {"da9055-pmic", 0},
58 { }
59};
60
61static struct i2c_driver da9055_i2c_driver = {
62 .probe = da9055_i2c_probe,
63 .remove = __devexit_p(da9055_i2c_remove),
64 .id_table = da9055_i2c_id,
65 .driver = {
66 .name = "da9055",
67 .owner = THIS_MODULE,
68 },
69};
70
71static int __init da9055_i2c_init(void)
72{
73 int ret;
74
75 ret = i2c_add_driver(&da9055_i2c_driver);
76 if (ret != 0) {
77 pr_err("DA9055 I2C registration failed %d\n", ret);
78 return ret;
79 }
80
81 return 0;
82}
83subsys_initcall(da9055_i2c_init);
84
85static void __exit da9055_i2c_exit(void)
86{
87 i2c_del_driver(&da9055_i2c_driver);
88}
89module_exit(da9055_i2c_exit);
90
91MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
92MODULE_DESCRIPTION("I2C driver for Dialog DA9055 PMIC");
93MODULE_LICENSE("GPL");