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