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

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Arizona-i2c.c  --  Arizona I2C bus interface
 *
 * Copyright 2012 Wolfson Microelectronics plc
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 */

#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/of.h>

#include <linux/mfd/arizona/core.h>

#include "arizona.h"

static int arizona_i2c_probe(struct i2c_client *i2c,
			     const struct i2c_device_id *id)
{
	const void *match_data;
	struct arizona *arizona;
	const struct regmap_config *regmap_config = NULL;
	unsigned long type = 0;
	int ret;

	match_data = device_get_match_data(&i2c->dev);
	if (match_data)
		type = (unsigned long)match_data;
	else if (id)
		type = id->driver_data;

	switch (type) {
	case WM5102:
		if (IS_ENABLED(CONFIG_MFD_WM5102))
			regmap_config = &wm5102_i2c_regmap;
		break;
	case WM5110:
	case WM8280:
		if (IS_ENABLED(CONFIG_MFD_WM5110))
			regmap_config = &wm5110_i2c_regmap;
		break;
	case WM8997:
		if (IS_ENABLED(CONFIG_MFD_WM8997))
			regmap_config = &wm8997_i2c_regmap;
		break;
	case WM8998:
	case WM1814:
		if (IS_ENABLED(CONFIG_MFD_WM8998))
			regmap_config = &wm8998_i2c_regmap;
		break;
	default:
		dev_err(&i2c->dev, "Unknown device type %ld\n", type);
		return -EINVAL;
	}

	if (!regmap_config) {
		dev_err(&i2c->dev,
			"No kernel support for device type %ld\n", type);
		return -EINVAL;
	}

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

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

	arizona->type = type;
	arizona->dev = &i2c->dev;
	arizona->irq = i2c->irq;

	return arizona_dev_init(arizona);
}

static int arizona_i2c_remove(struct i2c_client *i2c)
{
	struct arizona *arizona = dev_get_drvdata(&i2c->dev);

	arizona_dev_exit(arizona);

	return 0;
}

static const struct i2c_device_id arizona_i2c_id[] = {
	{ "wm5102", WM5102 },
	{ "wm5110", WM5110 },
	{ "wm8280", WM8280 },
	{ "wm8997", WM8997 },
	{ "wm8998", WM8998 },
	{ "wm1814", WM1814 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);

static struct i2c_driver arizona_i2c_driver = {
	.driver = {
		.name	= "arizona",
		.pm	= &arizona_pm_ops,
		.of_match_table	= of_match_ptr(arizona_of_match),
	},
	.probe		= arizona_i2c_probe,
	.remove		= arizona_i2c_remove,
	.id_table	= arizona_i2c_id,
};

module_i2c_driver(arizona_i2c_driver);

MODULE_SOFTDEP("pre: arizona_ldo1");
MODULE_DESCRIPTION("Arizona I2C bus interface");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
c6f75622 MB	2	/*
	3	* Arizona-i2c.c -- Arizona I2C bus interface
	4	*
	5	* Copyright 2012 Wolfson Microelectronics plc
	6	*
	7	* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
c6f75622 MB	8	*/
	9
	10	#include <linux/err.h>
	11	#include <linux/i2c.h>
	12	#include <linux/module.h>
	13	#include <linux/pm_runtime.h>
	14	#include <linux/regmap.h>
	15	#include <linux/regulator/consumer.h>
	16	#include <linux/slab.h>
3d6d1d1c	17	#include <linux/of.h>
c6f75622 MB	18
	19	#include <linux/mfd/arizona/core.h>
	20
	21	#include "arizona.h"
	22
f791be49	23	static int arizona_i2c_probe(struct i2c_client *i2c,
942786e6	24	const struct i2c_device_id *id)
c6f75622	25	{
039da225	26	const void *match_data;
c6f75622	27	struct arizona *arizona;
b61c1ec0	28	const struct regmap_config *regmap_config = NULL;
039da225	29	unsigned long type = 0;
942786e6	30	int ret;
c6f75622	31
039da225 HG	32	match_data = device_get_match_data(&i2c->dev);
	33	if (match_data)
	34	type = (unsigned long)match_data;
	35	else if (id)
d781009c MB	36	type = id->driver_data;
	37
	38	switch (type) {
c6f75622	39	case WM5102:
b61c1ec0 RF	40	if (IS_ENABLED(CONFIG_MFD_WM5102))
b61c1ec0 RF	41	regmap_config = &wm5102_i2c_regmap;
c6f75622	42	break;
e102befe	43	case WM5110:
e5d4ef0d	44	case WM8280:
b61c1ec0 RF	45	if (IS_ENABLED(CONFIG_MFD_WM5110))
b61c1ec0 RF	46	regmap_config = &wm5110_i2c_regmap;
e102befe	47	break;
dc7d4863	48	case WM8997:
b61c1ec0 RF	49	if (IS_ENABLED(CONFIG_MFD_WM8997))
b61c1ec0 RF	50	regmap_config = &wm8997_i2c_regmap;
dc7d4863	51	break;
6887b042 RF	52	case WM8998:
6887b042 RF	53	case WM1814:
b61c1ec0 RF	54	if (IS_ENABLED(CONFIG_MFD_WM8998))
b61c1ec0 RF	55	regmap_config = &wm8998_i2c_regmap;
6887b042	56	break;
c6f75622	57	default:
2e44e28a	58	dev_err(&i2c->dev, "Unknown device type %ld\n", type);
c6f75622 MB	59	return -EINVAL;
	60	}
	61
b61c1ec0 RF	62	if (!regmap_config) {
	63	dev_err(&i2c->dev,
	64	"No kernel support for device type %ld\n", type);
	65	return -EINVAL;
	66	}
	67
c6f75622 MB	68	arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL);
	69	if (arizona == NULL)
	70	return -ENOMEM;
	71
	72	arizona->regmap = devm_regmap_init_i2c(i2c, regmap_config);
	73	if (IS_ERR(arizona->regmap)) {
	74	ret = PTR_ERR(arizona->regmap);
	75	dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
	76	ret);
	77	return ret;
	78	}
	79
2e44e28a	80	arizona->type = type;
c6f75622 MB	81	arizona->dev = &i2c->dev;
	82	arizona->irq = i2c->irq;
	83
	84	return arizona_dev_init(arizona);
	85	}
	86
4740f73f	87	static int arizona_i2c_remove(struct i2c_client *i2c)
c6f75622 MB	88	{
c6f75622 MB	89	struct arizona *arizona = dev_get_drvdata(&i2c->dev);
9f6e872a	90
c6f75622	91	arizona_dev_exit(arizona);
9f6e872a	92
c6f75622 MB	93	return 0;
	94	}
	95
	96	static const struct i2c_device_id arizona_i2c_id[] = {
	97	{ "wm5102", WM5102 },
e102befe	98	{ "wm5110", WM5110 },
e5d4ef0d	99	{ "wm8280", WM8280 },
dc7d4863	100	{ "wm8997", WM8997 },
6887b042 RF	101	{ "wm8998", WM8998 },
6887b042 RF	102	{ "wm1814", WM1814 },
c6f75622 MB	103	{ }
	104	};
	105	MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);
	106
	107	static struct i2c_driver arizona_i2c_driver = {
	108	.driver = {
	109	.name = "arizona",
c6f75622	110	.pm = &arizona_pm_ops,
d781009c	111	.of_match_table = of_match_ptr(arizona_of_match),
c6f75622 MB	112	},
c6f75622 MB	113	.probe = arizona_i2c_probe,
84449216	114	.remove = arizona_i2c_remove,
c6f75622 MB	115	.id_table = arizona_i2c_id,
	116	};
	117
	118	module_i2c_driver(arizona_i2c_driver);
	119
06e577b4	120	MODULE_SOFTDEP("pre: arizona_ldo1");
c6f75622 MB	121	MODULE_DESCRIPTION("Arizona I2C bus interface");
	122	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	123	MODULE_LICENSE("GPL");