[linux-2.6-block.git] / drivers / mfd / mc13xxx-i2c.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright 2009-2010 Creative Product Design
 * Marc Reilly marc@cpdesign.com.au
 */

#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mc13xxx.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/i2c.h>
#include <linux/err.h>

#include "mc13xxx.h"

static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
	{
		.name = "mc13892",
		.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
	}, {
		.name = "mc34708",
		.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
	}, {
		/* sentinel */
	}
};
MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);

static const struct of_device_id mc13xxx_dt_ids[] = {
	{
		.compatible = "fsl,mc13892",
		.data = &mc13xxx_variant_mc13892,
	}, {
		.compatible = "fsl,mc34708",
		.data = &mc13xxx_variant_mc34708,
	}, {
		/* sentinel */
	}
};
MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);

static const struct regmap_config mc13xxx_regmap_i2c_config = {
	.reg_bits = 8,
	.val_bits = 24,

	.max_register = MC13XXX_NUMREGS,

	.cache_type = REGCACHE_NONE,
};

static int mc13xxx_i2c_probe(struct i2c_client *client,
		const struct i2c_device_id *id)
{
	struct mc13xxx *mc13xxx;
	int ret;

	mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
	if (!mc13xxx)
		return -ENOMEM;

	dev_set_drvdata(&client->dev, mc13xxx);

	mc13xxx->irq = client->irq;

	mc13xxx->regmap = devm_regmap_init_i2c(client,
					       &mc13xxx_regmap_i2c_config);
	if (IS_ERR(mc13xxx->regmap)) {
		ret = PTR_ERR(mc13xxx->regmap);
		dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
		return ret;
	}

	if (client->dev.of_node) {
		const struct of_device_id *of_id =
			of_match_device(mc13xxx_dt_ids, &client->dev);
		mc13xxx->variant = of_id->data;
	} else {
		mc13xxx->variant = (void *)id->driver_data;
	}

	return mc13xxx_common_init(&client->dev);
}

static int mc13xxx_i2c_remove(struct i2c_client *client)
{
	return mc13xxx_common_exit(&client->dev);
}

static struct i2c_driver mc13xxx_i2c_driver = {
	.id_table = mc13xxx_i2c_device_id,
	.driver = {
		.name = "mc13xxx",
		.of_match_table = mc13xxx_dt_ids,
	},
	.probe = mc13xxx_i2c_probe,
	.remove = mc13xxx_i2c_remove,
};

static int __init mc13xxx_i2c_init(void)
{
	return i2c_add_driver(&mc13xxx_i2c_driver);
}
subsys_initcall(mc13xxx_i2c_init);

static void __exit mc13xxx_i2c_exit(void)
{
	i2c_del_driver(&mc13xxx_i2c_driver);
}
module_exit(mc13xxx_i2c_exit);

MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
df3df646 MR	2	/*
	3	* Copyright 2009-2010 Creative Product Design
	4	* Marc Reilly marc@cpdesign.com.au
df3df646 MR	5	*/
	6
	7	#include <linux/slab.h>
	8	#include <linux/module.h>
	9	#include <linux/platform_device.h>
df3df646 MR	10	#include <linux/mfd/core.h>
	11	#include <linux/mfd/mc13xxx.h>
	12	#include <linux/of.h>
	13	#include <linux/of_device.h>
	14	#include <linux/of_gpio.h>
	15	#include <linux/i2c.h>
	16	#include <linux/err.h>
	17
	18	#include "mc13xxx.h"
	19
	20	static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
	21	{
	22	.name = "mc13892",
cd0f34b0	23	.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
0312e024 UKK	24	}, {
	25	.name = "mc34708",
	26	.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
df3df646 MR	27	}, {
	28	/* sentinel */
	29	}
	30	};
	31	MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
	32
	33	static const struct of_device_id mc13xxx_dt_ids[] = {
	34	{
	35	.compatible = "fsl,mc13892",
cd0f34b0	36	.data = &mc13xxx_variant_mc13892,
0312e024 UKK	37	}, {
	38	.compatible = "fsl,mc34708",
	39	.data = &mc13xxx_variant_mc34708,
df3df646 MR	40	}, {
	41	/* sentinel */
	42	}
	43	};
	44	MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
	45
18dd21ab	46	static const struct regmap_config mc13xxx_regmap_i2c_config = {
df3df646 MR	47	.reg_bits = 8,
	48	.val_bits = 24,
	49
	50	.max_register = MC13XXX_NUMREGS,
	51
	52	.cache_type = REGCACHE_NONE,
	53	};
	54
	55	static int mc13xxx_i2c_probe(struct i2c_client *client,
	56	const struct i2c_device_id *id)
	57	{
df3df646	58	struct mc13xxx *mc13xxx;
df3df646 MR	59	int ret;
df3df646 MR	60
e7c706b1	61	mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
df3df646 MR	62	if (!mc13xxx)
	63	return -ENOMEM;
	64
	65	dev_set_drvdata(&client->dev, mc13xxx);
	66
db9ef449	67	mc13xxx->irq = client->irq;
df3df646	68
e7c706b1 AL	69	mc13xxx->regmap = devm_regmap_init_i2c(client,
e7c706b1 AL	70	&mc13xxx_regmap_i2c_config);
df3df646 MR	71	if (IS_ERR(mc13xxx->regmap)) {
df3df646 MR	72	ret = PTR_ERR(mc13xxx->regmap);
db9ef449	73	dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
df3df646 MR	74	return ret;
	75	}
	76
cd0f34b0 UKK	77	if (client->dev.of_node) {
	78	const struct of_device_id *of_id =
	79	of_match_device(mc13xxx_dt_ids, &client->dev);
	80	mc13xxx->variant = of_id->data;
	81	} else {
	82	mc13xxx->variant = (void *)id->driver_data;
	83	}
df3df646	84
db9ef449	85	return mc13xxx_common_init(&client->dev);
df3df646 MR	86	}
df3df646 MR	87
4740f73f	88	static int mc13xxx_i2c_remove(struct i2c_client *client)
df3df646	89	{
db9ef449	90	return mc13xxx_common_exit(&client->dev);
df3df646 MR	91	}
	92
	93	static struct i2c_driver mc13xxx_i2c_driver = {
	94	.id_table = mc13xxx_i2c_device_id,
	95	.driver = {
df3df646 MR	96	.name = "mc13xxx",
	97	.of_match_table = mc13xxx_dt_ids,
	98	},
	99	.probe = mc13xxx_i2c_probe,
84449216	100	.remove = mc13xxx_i2c_remove,
df3df646 MR	101	};
	102
	103	static int __init mc13xxx_i2c_init(void)
	104	{
	105	return i2c_add_driver(&mc13xxx_i2c_driver);
	106	}
	107	subsys_initcall(mc13xxx_i2c_init);
	108
	109	static void __exit mc13xxx_i2c_exit(void)
	110	{
	111	i2c_del_driver(&mc13xxx_i2c_driver);
	112	}
	113	module_exit(mc13xxx_i2c_exit);
	114
	115	MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
	116	MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
	117	MODULE_LICENSE("GPL v2");