[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/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)
{
	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;
	}

	mc13xxx->variant = i2c_get_match_data(client);

	return mc13xxx_common_init(&client->dev);
}

static void mc13xxx_i2c_remove(struct i2c_client *client)
{
	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>
df3df646 MR	14	#include <linux/i2c.h>
	15	#include <linux/err.h>
	16
	17	#include "mc13xxx.h"
	18
	19	static const struct i2c_device_id mc13xxx_i2c_device_id[] = {
	20	{
	21	.name = "mc13892",
cd0f34b0	22	.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892,
0312e024 UKK	23	}, {
	24	.name = "mc34708",
	25	.driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708,
df3df646 MR	26	}, {
	27	/* sentinel */
	28	}
	29	};
	30	MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id);
	31
	32	static const struct of_device_id mc13xxx_dt_ids[] = {
	33	{
	34	.compatible = "fsl,mc13892",
cd0f34b0	35	.data = &mc13xxx_variant_mc13892,
0312e024 UKK	36	}, {
	37	.compatible = "fsl,mc34708",
	38	.data = &mc13xxx_variant_mc34708,
df3df646 MR	39	}, {
	40	/* sentinel */
	41	}
	42	};
	43	MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids);
	44
18dd21ab	45	static const struct regmap_config mc13xxx_regmap_i2c_config = {
df3df646 MR	46	.reg_bits = 8,
	47	.val_bits = 24,
	48
	49	.max_register = MC13XXX_NUMREGS,
	50
	51	.cache_type = REGCACHE_NONE,
	52	};
	53
10605529	54	static int mc13xxx_i2c_probe(struct i2c_client *client)
df3df646	55	{
df3df646	56	struct mc13xxx *mc13xxx;
df3df646 MR	57	int ret;
df3df646 MR	58
e7c706b1	59	mc13xxx = devm_kzalloc(&client->dev, sizeof(*mc13xxx), GFP_KERNEL);
df3df646 MR	60	if (!mc13xxx)
	61	return -ENOMEM;
	62
	63	dev_set_drvdata(&client->dev, mc13xxx);
	64
db9ef449	65	mc13xxx->irq = client->irq;
df3df646	66
e7c706b1 AL	67	mc13xxx->regmap = devm_regmap_init_i2c(client,
e7c706b1 AL	68	&mc13xxx_regmap_i2c_config);
df3df646 MR	69	if (IS_ERR(mc13xxx->regmap)) {
df3df646 MR	70	ret = PTR_ERR(mc13xxx->regmap);
db9ef449	71	dev_err(&client->dev, "Failed to initialize regmap: %d\n", ret);
df3df646 MR	72	return ret;
	73	}
	74
9aab92bc	75	mc13xxx->variant = i2c_get_match_data(client);
df3df646	76
db9ef449	77	return mc13xxx_common_init(&client->dev);
df3df646 MR	78	}
df3df646 MR	79
ed5c2f5f	80	static void mc13xxx_i2c_remove(struct i2c_client *client)
df3df646	81	{
c39cf60f	82	mc13xxx_common_exit(&client->dev);
df3df646 MR	83	}
	84
	85	static struct i2c_driver mc13xxx_i2c_driver = {
	86	.id_table = mc13xxx_i2c_device_id,
	87	.driver = {
df3df646 MR	88	.name = "mc13xxx",
	89	.of_match_table = mc13xxx_dt_ids,
	90	},
9816d859	91	.probe = mc13xxx_i2c_probe,
84449216	92	.remove = mc13xxx_i2c_remove,
df3df646 MR	93	};
	94
	95	static int __init mc13xxx_i2c_init(void)
	96	{
	97	return i2c_add_driver(&mc13xxx_i2c_driver);
	98	}
	99	subsys_initcall(mc13xxx_i2c_init);
	100
	101	static void __exit mc13xxx_i2c_exit(void)
	102	{
	103	i2c_del_driver(&mc13xxx_i2c_driver);
	104	}
	105	module_exit(mc13xxx_i2c_exit);
	106
	107	MODULE_DESCRIPTION("i2c driver for Freescale MC13XXX PMIC");
	108	MODULE_AUTHOR("Marc Reilly <marc@cpdesign.com.au");
	109	MODULE_LICENSE("GPL v2");