1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * wm8350-i2c.c -- Generic I2C driver for Wolfson WM8350 PMIC
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright 2007, 2008 Wolfson Microelectronics PLC.
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Author: Liam Girdwood
8*4882a593Smuzhiyun * linux@wolfsonmicro.com
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/err.h>
12*4882a593Smuzhiyun #include <linux/init.h>
13*4882a593Smuzhiyun #include <linux/i2c.h>
14*4882a593Smuzhiyun #include <linux/platform_device.h>
15*4882a593Smuzhiyun #include <linux/mfd/wm8350/core.h>
16*4882a593Smuzhiyun #include <linux/regmap.h>
17*4882a593Smuzhiyun #include <linux/slab.h>
18*4882a593Smuzhiyun
wm8350_i2c_probe(struct i2c_client * i2c,const struct i2c_device_id * id)19*4882a593Smuzhiyun static int wm8350_i2c_probe(struct i2c_client *i2c,
20*4882a593Smuzhiyun const struct i2c_device_id *id)
21*4882a593Smuzhiyun {
22*4882a593Smuzhiyun struct wm8350 *wm8350;
23*4882a593Smuzhiyun struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev);
24*4882a593Smuzhiyun int ret = 0;
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
27*4882a593Smuzhiyun if (wm8350 == NULL)
28*4882a593Smuzhiyun return -ENOMEM;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
31*4882a593Smuzhiyun if (IS_ERR(wm8350->regmap)) {
32*4882a593Smuzhiyun ret = PTR_ERR(wm8350->regmap);
33*4882a593Smuzhiyun dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
34*4882a593Smuzhiyun ret);
35*4882a593Smuzhiyun return ret;
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun i2c_set_clientdata(i2c, wm8350);
39*4882a593Smuzhiyun wm8350->dev = &i2c->dev;
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun return wm8350_device_init(wm8350, i2c->irq, pdata);
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun static const struct i2c_device_id wm8350_i2c_id[] = {
45*4882a593Smuzhiyun { "wm8350", 0 },
46*4882a593Smuzhiyun { "wm8351", 0 },
47*4882a593Smuzhiyun { "wm8352", 0 },
48*4882a593Smuzhiyun { }
49*4882a593Smuzhiyun };
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun static struct i2c_driver wm8350_i2c_driver = {
52*4882a593Smuzhiyun .driver = {
53*4882a593Smuzhiyun .name = "wm8350",
54*4882a593Smuzhiyun .suppress_bind_attrs = true,
55*4882a593Smuzhiyun },
56*4882a593Smuzhiyun .probe = wm8350_i2c_probe,
57*4882a593Smuzhiyun .id_table = wm8350_i2c_id,
58*4882a593Smuzhiyun };
59*4882a593Smuzhiyun
wm8350_i2c_init(void)60*4882a593Smuzhiyun static int __init wm8350_i2c_init(void)
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun return i2c_add_driver(&wm8350_i2c_driver);
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun /* init early so consumer devices can complete system boot */
65*4882a593Smuzhiyun subsys_initcall(wm8350_i2c_init);
66