[mirror_ubuntu-hirsute-kernel.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)
{
	struct arizona *arizona;
	const struct regmap_config *regmap_config = NULL;
	unsigned long type;
	int ret;

	if (i2c->dev.of_node)
		type = arizona_of_get_type(&i2c->dev);
	else
		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_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 MB	25	{
c6f75622 MB	26	struct arizona *arizona;
b61c1ec0	27	const struct regmap_config *regmap_config = NULL;
942786e6 LJ	28	unsigned long type;
942786e6 LJ	29	int ret;
c6f75622	30
d781009c MB	31	if (i2c->dev.of_node)
	32	type = arizona_of_get_type(&i2c->dev);
	33	else
	34	type = id->driver_data;
	35
	36	switch (type) {
c6f75622	37	case WM5102:
b61c1ec0 RF	38	if (IS_ENABLED(CONFIG_MFD_WM5102))
b61c1ec0 RF	39	regmap_config = &wm5102_i2c_regmap;
c6f75622	40	break;
e102befe	41	case WM5110:
e5d4ef0d	42	case WM8280:
b61c1ec0 RF	43	if (IS_ENABLED(CONFIG_MFD_WM5110))
b61c1ec0 RF	44	regmap_config = &wm5110_i2c_regmap;
e102befe	45	break;
dc7d4863	46	case WM8997:
b61c1ec0 RF	47	if (IS_ENABLED(CONFIG_MFD_WM8997))
b61c1ec0 RF	48	regmap_config = &wm8997_i2c_regmap;
dc7d4863	49	break;
6887b042 RF	50	case WM8998:
6887b042 RF	51	case WM1814:
b61c1ec0 RF	52	if (IS_ENABLED(CONFIG_MFD_WM8998))
b61c1ec0 RF	53	regmap_config = &wm8998_i2c_regmap;
6887b042	54	break;
c6f75622	55	default:
2e44e28a	56	dev_err(&i2c->dev, "Unknown device type %ld\n", type);
c6f75622 MB	57	return -EINVAL;
	58	}
	59
b61c1ec0 RF	60	if (!regmap_config) {
	61	dev_err(&i2c->dev,
	62	"No kernel support for device type %ld\n", type);
	63	return -EINVAL;
	64	}
	65
c6f75622 MB	66	arizona = devm_kzalloc(&i2c->dev, sizeof(*arizona), GFP_KERNEL);
	67	if (arizona == NULL)
	68	return -ENOMEM;
	69
	70	arizona->regmap = devm_regmap_init_i2c(i2c, regmap_config);
	71	if (IS_ERR(arizona->regmap)) {
	72	ret = PTR_ERR(arizona->regmap);
	73	dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
	74	ret);
	75	return ret;
	76	}
	77
2e44e28a	78	arizona->type = type;
c6f75622 MB	79	arizona->dev = &i2c->dev;
	80	arizona->irq = i2c->irq;
	81
	82	return arizona_dev_init(arizona);
	83	}
	84
4740f73f	85	static int arizona_i2c_remove(struct i2c_client *i2c)
c6f75622 MB	86	{
c6f75622 MB	87	struct arizona *arizona = dev_get_drvdata(&i2c->dev);
9f6e872a	88
c6f75622	89	arizona_dev_exit(arizona);
9f6e872a	90
c6f75622 MB	91	return 0;
	92	}
	93
	94	static const struct i2c_device_id arizona_i2c_id[] = {
	95	{ "wm5102", WM5102 },
e102befe	96	{ "wm5110", WM5110 },
e5d4ef0d	97	{ "wm8280", WM8280 },
dc7d4863	98	{ "wm8997", WM8997 },
6887b042 RF	99	{ "wm8998", WM8998 },
6887b042 RF	100	{ "wm1814", WM1814 },
c6f75622 MB	101	{ }
	102	};
	103	MODULE_DEVICE_TABLE(i2c, arizona_i2c_id);
	104
	105	static struct i2c_driver arizona_i2c_driver = {
	106	.driver = {
	107	.name = "arizona",
c6f75622	108	.pm = &arizona_pm_ops,
d781009c	109	.of_match_table = of_match_ptr(arizona_of_match),
c6f75622 MB	110	},
c6f75622 MB	111	.probe = arizona_i2c_probe,
84449216	112	.remove = arizona_i2c_remove,
c6f75622 MB	113	.id_table = arizona_i2c_id,
	114	};
	115
	116	module_i2c_driver(arizona_i2c_driver);
	117
	118	MODULE_DESCRIPTION("Arizona I2C bus interface");
	119	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	120	MODULE_LICENSE("GPL");