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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
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2 | /* |
3 | * wm8350-i2c.c -- Generic I2C driver for Wolfson WM8350 PMIC | |
4 | * | |
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5 | * Copyright 2007, 2008 Wolfson Microelectronics PLC. |
6 | * | |
7 | * Author: Liam Girdwood | |
8 | * linux@wolfsonmicro.com | |
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9 | */ |
10 | ||
b7b142d9 | 11 | #include <linux/err.h> |
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12 | #include <linux/init.h> |
13 | #include <linux/i2c.h> | |
14 | #include <linux/platform_device.h> | |
15 | #include <linux/mfd/wm8350/core.h> | |
b7b142d9 | 16 | #include <linux/regmap.h> |
5a0e3ad6 | 17 | #include <linux/slab.h> |
c661a0b9 | 18 | |
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19 | static int wm8350_i2c_probe(struct i2c_client *i2c, |
20 | const struct i2c_device_id *id) | |
21 | { | |
22 | struct wm8350 *wm8350; | |
334a41ce | 23 | struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev); |
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24 | int ret = 0; |
25 | ||
55ee29d5 | 26 | wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL); |
e47a3bbe | 27 | if (wm8350 == NULL) |
c661a0b9 | 28 | return -ENOMEM; |
c661a0b9 | 29 | |
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30 | wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap); |
31 | if (IS_ERR(wm8350->regmap)) { | |
32 | ret = PTR_ERR(wm8350->regmap); | |
33 | dev_err(&i2c->dev, "Failed to allocate register map: %d\n", | |
34 | ret); | |
35 | return ret; | |
36 | } | |
37 | ||
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38 | i2c_set_clientdata(i2c, wm8350); |
39 | wm8350->dev = &i2c->dev; | |
c661a0b9 | 40 | |
334a41ce | 41 | return wm8350_device_init(wm8350, i2c->irq, pdata); |
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42 | } |
43 | ||
c661a0b9 | 44 | static const struct i2c_device_id wm8350_i2c_id[] = { |
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45 | { "wm8350", 0 }, |
46 | { "wm8351", 0 }, | |
47 | { "wm8352", 0 }, | |
48 | { } | |
c661a0b9 | 49 | }; |
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50 | |
51 | static struct i2c_driver wm8350_i2c_driver = { | |
52 | .driver = { | |
53 | .name = "wm8350", | |
fc643066 | 54 | .suppress_bind_attrs = true, |
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55 | }, |
56 | .probe = wm8350_i2c_probe, | |
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57 | .id_table = wm8350_i2c_id, |
58 | }; | |
59 | ||
60 | static int __init wm8350_i2c_init(void) | |
61 | { | |
62 | return i2c_add_driver(&wm8350_i2c_driver); | |
63 | } | |
64 | /* init early so consumer devices can complete system boot */ | |
65 | subsys_initcall(wm8350_i2c_init); |