[linux-2.6-block.git] / drivers / mfd / wm8350-i2c.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * wm8350-i2c.c  --  Generic I2C driver for Wolfson WM8350 PMIC
 *
 * Copyright 2007, 2008 Wolfson Microelectronics PLC.
 *
 * Author: Liam Girdwood
 *         linux@wolfsonmicro.com
 */

#include <linux/err.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/mfd/wm8350/core.h>
#include <linux/regmap.h>
#include <linux/slab.h>

static int wm8350_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct wm8350 *wm8350;
	struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev);
	int ret = 0;

	wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
	if (wm8350 == NULL)
		return -ENOMEM;

	wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
	if (IS_ERR(wm8350->regmap)) {
		ret = PTR_ERR(wm8350->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		return ret;
	}

	i2c_set_clientdata(i2c, wm8350);
	wm8350->dev = &i2c->dev;

	return wm8350_device_init(wm8350, i2c->irq, pdata);
}

static const struct i2c_device_id wm8350_i2c_id[] = {
	{ "wm8350", 0 },
	{ "wm8351", 0 },
	{ "wm8352", 0 },
	{ }
};

static struct i2c_driver wm8350_i2c_driver = {
	.driver = {
		   .name = "wm8350",
		   .suppress_bind_attrs = true,
	},
	.probe = wm8350_i2c_probe,
	.id_table = wm8350_i2c_id,
};

static int __init wm8350_i2c_init(void)
{
	return i2c_add_driver(&wm8350_i2c_driver);
}
/* init early so consumer devices can complete system boot */
subsys_initcall(wm8350_i2c_init);
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
c661a0b9 MB	2	/*
	3	* wm8350-i2c.c -- Generic I2C driver for Wolfson WM8350 PMIC
	4	*
c661a0b9 MB	5	* Copyright 2007, 2008 Wolfson Microelectronics PLC.
	6	*
	7	* Author: Liam Girdwood
	8	* linux@wolfsonmicro.com
c661a0b9 MB	9	*/
c661a0b9 MB	10
b7b142d9	11	#include <linux/err.h>
c661a0b9 MB	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
c661a0b9 MB	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);
c661a0b9 MB	24	int ret = 0;
c661a0b9 MB	25
55ee29d5	26	wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
e47a3bbe	27	if (wm8350 == NULL)
c661a0b9	28	return -ENOMEM;
c661a0b9	29
b7b142d9 MB	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
c661a0b9 MB	38	i2c_set_clientdata(i2c, wm8350);
c661a0b9 MB	39	wm8350->dev = &i2c->dev;
c661a0b9	40
334a41ce	41	return wm8350_device_init(wm8350, i2c->irq, pdata);
c661a0b9 MB	42	}
c661a0b9 MB	43
c661a0b9	44	static const struct i2c_device_id wm8350_i2c_id[] = {
6db1c9ba LJ	45	{ "wm8350", 0 },
	46	{ "wm8351", 0 },
	47	{ "wm8352", 0 },
	48	{ }
c661a0b9	49	};
c661a0b9 MB	50
	51	static struct i2c_driver wm8350_i2c_driver = {
	52	.driver = {
	53	.name = "wm8350",
fc643066	54	.suppress_bind_attrs = true,
c661a0b9 MB	55	},
c661a0b9 MB	56	.probe = wm8350_i2c_probe,
c661a0b9 MB	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);