12874c5fdSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
2c661a0b9SMark Brown /*
3c661a0b9SMark Brown * wm8350-i2c.c -- Generic I2C driver for Wolfson WM8350 PMIC
4c661a0b9SMark Brown *
5c661a0b9SMark Brown * Copyright 2007, 2008 Wolfson Microelectronics PLC.
6c661a0b9SMark Brown *
7c661a0b9SMark Brown * Author: Liam Girdwood
8c661a0b9SMark Brown * linux@wolfsonmicro.com
9c661a0b9SMark Brown */
10c661a0b9SMark Brown
11b7b142d9SMark Brown #include <linux/err.h>
12c661a0b9SMark Brown #include <linux/init.h>
13c661a0b9SMark Brown #include <linux/i2c.h>
14c661a0b9SMark Brown #include <linux/platform_device.h>
15c661a0b9SMark Brown #include <linux/mfd/wm8350/core.h>
16b7b142d9SMark Brown #include <linux/regmap.h>
175a0e3ad6STejun Heo #include <linux/slab.h>
18c661a0b9SMark Brown
wm8350_i2c_probe(struct i2c_client * i2c)198b20feffSUwe Kleine-König static int wm8350_i2c_probe(struct i2c_client *i2c)
20c661a0b9SMark Brown {
21c661a0b9SMark Brown struct wm8350 *wm8350;
22334a41ceSJingoo Han struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev);
23c661a0b9SMark Brown int ret = 0;
24c661a0b9SMark Brown
2555ee29d5SMark Brown wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
26e47a3bbeSRabin Vincent if (wm8350 == NULL)
27c661a0b9SMark Brown return -ENOMEM;
28c661a0b9SMark Brown
29b7b142d9SMark Brown wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
30b7b142d9SMark Brown if (IS_ERR(wm8350->regmap)) {
31b7b142d9SMark Brown ret = PTR_ERR(wm8350->regmap);
32b7b142d9SMark Brown dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
33b7b142d9SMark Brown ret);
34b7b142d9SMark Brown return ret;
35b7b142d9SMark Brown }
36b7b142d9SMark Brown
37c661a0b9SMark Brown i2c_set_clientdata(i2c, wm8350);
38c661a0b9SMark Brown wm8350->dev = &i2c->dev;
39c661a0b9SMark Brown
40334a41ceSJingoo Han return wm8350_device_init(wm8350, i2c->irq, pdata);
41c661a0b9SMark Brown }
42c661a0b9SMark Brown
43c661a0b9SMark Brown static const struct i2c_device_id wm8350_i2c_id[] = {
44c661a0b9SMark Brown { "wm8350", 0 },
45ca23f8c1SMark Brown { "wm8351", 0 },
4696920630SMark Brown { "wm8352", 0 },
47c661a0b9SMark Brown { }
48c661a0b9SMark Brown };
49c661a0b9SMark Brown
50c661a0b9SMark Brown static struct i2c_driver wm8350_i2c_driver = {
51c661a0b9SMark Brown .driver = {
52c661a0b9SMark Brown .name = "wm8350",
53fc643066SPaul Gortmaker .suppress_bind_attrs = true,
54c661a0b9SMark Brown },
55*9816d859SUwe Kleine-König .probe = wm8350_i2c_probe,
56c661a0b9SMark Brown .id_table = wm8350_i2c_id,
57c661a0b9SMark Brown };
58c661a0b9SMark Brown
wm8350_i2c_init(void)59c661a0b9SMark Brown static int __init wm8350_i2c_init(void)
60c661a0b9SMark Brown {
61c661a0b9SMark Brown return i2c_add_driver(&wm8350_i2c_driver);
62c661a0b9SMark Brown }
63c661a0b9SMark Brown /* init early so consumer devices can complete system boot */
64c661a0b9SMark Brown subsys_initcall(wm8350_i2c_init);
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