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2896434c AJ |
1 | /* 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 | ||
f791be49 | 21 | static int da9055_i2c_probe(struct i2c_client *i2c, |
2896434c AJ |
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 | ||
4740f73f | 47 | static int da9055_i2c_remove(struct i2c_client *i2c) |
2896434c AJ |
48 | { |
49 | struct da9055 *da9055 = i2c_get_clientdata(i2c); | |
50 | ||
51 | da9055_device_exit(da9055); | |
52 | ||
53 | return 0; | |
54 | } | |
55 | ||
56 | static struct i2c_device_id da9055_i2c_id[] = { | |
57 | {"da9055-pmic", 0}, | |
58 | { } | |
59 | }; | |
60 | ||
61 | static struct i2c_driver da9055_i2c_driver = { | |
62 | .probe = da9055_i2c_probe, | |
84449216 | 63 | .remove = da9055_i2c_remove, |
2896434c AJ |
64 | .id_table = da9055_i2c_id, |
65 | .driver = { | |
66 | .name = "da9055", | |
67 | .owner = THIS_MODULE, | |
68 | }, | |
69 | }; | |
70 | ||
71 | static 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 | } | |
83 | subsys_initcall(da9055_i2c_init); | |
84 | ||
85 | static void __exit da9055_i2c_exit(void) | |
86 | { | |
87 | i2c_del_driver(&da9055_i2c_driver); | |
88 | } | |
89 | module_exit(da9055_i2c_exit); | |
90 | ||
91 | MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>"); | |
92 | MODULE_DESCRIPTION("I2C driver for Dialog DA9055 PMIC"); | |
93 | MODULE_LICENSE("GPL"); |