1/*
2 * wm8350-i2c.c -- Generic I2C driver for Wolfson WM8350 PMIC
3 *
4 * Copyright 2007, 2008 Wolfson Microelectronics PLC.
5 *
6 * Author: Liam Girdwood
7 * linux@wolfsonmicro.com
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 */
15
16#include <linux/err.h>
17#include <linux/init.h>
18#include <linux/i2c.h>
19#include <linux/platform_device.h>
20#include <linux/mfd/wm8350/core.h>
21#include <linux/regmap.h>
22#include <linux/slab.h>
23
24static int wm8350_i2c_probe(struct i2c_client *i2c,
25 const struct i2c_device_id *id)
26{
27 struct wm8350 *wm8350;
28 struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev);
29 int ret = 0;
30
31 wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
32 if (wm8350 == NULL)
33 return -ENOMEM;
34
35 wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
36 if (IS_ERR(wm8350->regmap)) {
37 ret = PTR_ERR(wm8350->regmap);
38 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
39 ret);
40 return ret;
41 }
42
43 i2c_set_clientdata(i2c, wm8350);
44 wm8350->dev = &i2c->dev;
45
46 return wm8350_device_init(wm8350, i2c->irq, pdata);
47}
48
49static const struct i2c_device_id wm8350_i2c_id[] = {
50 { "wm8350", 0 },
51 { "wm8351", 0 },
52 { "wm8352", 0 },
53 { }
54};
55
56static struct i2c_driver wm8350_i2c_driver = {
57 .driver = {
58 .name = "wm8350",
59 .suppress_bind_attrs = true,
60 },
61 .probe = wm8350_i2c_probe,
62 .id_table = wm8350_i2c_id,
63};
64
65static int __init wm8350_i2c_init(void)
66{
67 return i2c_add_driver(&wm8350_i2c_driver);
68}
69/* init early so consumer devices can complete system boot */
70subsys_initcall(wm8350_i2c_init);
71