[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / mfd / tps65910.c

/*
 * tps65910.c  --  TI TPS6591x
 *
 * Copyright 2010 Texas Instruments Inc.
 *
 * Author: Graeme Gregory <gg@slimlogic.co.uk>
 * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under  the terms of the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the License, or (at your
 *  option) any later version.
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/mfd/core.h>
#include <linux/regmap.h>
#include <linux/mfd/tps65910.h>
#include <linux/of_device.h>

static struct resource rtc_resources[] = {
	{
		.start  = TPS65910_IRQ_RTC_ALARM,
		.end    = TPS65910_IRQ_RTC_ALARM,
		.flags  = IORESOURCE_IRQ,
	}
};

static struct mfd_cell tps65910s[] = {
	{
		.name = "tps65910-gpio",
	},
	{
		.name = "tps65910-pmic",
	},
	{
		.name = "tps65910-rtc",
		.num_resources = ARRAY_SIZE(rtc_resources),
		.resources = &rtc_resources[0],
	},
	{
		.name = "tps65910-power",
	},
};


static bool is_volatile_reg(struct device *dev, unsigned int reg)
{
	struct tps65910 *tps65910 = dev_get_drvdata(dev);

	/*
	 * Caching all regulator registers.
	 * All regualator register address range is same for
	 * TPS65910 and TPS65911
	 */
	if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
		/* Check for non-existing register */
		if (tps65910_chip_id(tps65910) == TPS65910)
			if ((reg == TPS65911_VDDCTRL_OP) ||
				(reg == TPS65911_VDDCTRL_SR))
				return true;
		return false;
	}
	return true;
}

static const struct regmap_config tps65910_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.volatile_reg = is_volatile_reg,
	.max_register = TPS65910_MAX_REGISTER - 1,
	.cache_type = REGCACHE_RBTREE,
};

static int tps65910_ck32k_init(struct tps65910 *tps65910,
					struct tps65910_board *pmic_pdata)
{
	int ret;

	if (!pmic_pdata->en_ck32k_xtal)
		return 0;

	ret = tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
						DEVCTRL_CK32K_CTRL_MASK);
	if (ret < 0) {
		dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
		return ret;
	}

	return 0;
}

static int tps65910_sleepinit(struct tps65910 *tps65910,
		struct tps65910_board *pmic_pdata)
{
	struct device *dev = NULL;
	int ret = 0;

	dev = tps65910->dev;

	if (!pmic_pdata->en_dev_slp)
		return 0;

	/* enabling SLEEP device state */
	ret = tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
				DEVCTRL_DEV_SLP_MASK);
	if (ret < 0) {
		dev_err(dev, "set dev_slp failed: %d\n", ret);
		goto err_sleep_init;
	}

	/* Return if there is no sleep keepon data. */
	if (!pmic_pdata->slp_keepon)
		return 0;

	if (pmic_pdata->slp_keepon->therm_keepon) {
		ret = tps65910_reg_set_bits(tps65910,
				TPS65910_SLEEP_KEEP_RES_ON,
				SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
		if (ret < 0) {
			dev_err(dev, "set therm_keepon failed: %d\n", ret);
			goto disable_dev_slp;
		}
	}

	if (pmic_pdata->slp_keepon->clkout32k_keepon) {
		ret = tps65910_reg_set_bits(tps65910,
				TPS65910_SLEEP_KEEP_RES_ON,
				SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
		if (ret < 0) {
			dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
			goto disable_dev_slp;
		}
	}

	if (pmic_pdata->slp_keepon->i2chs_keepon) {
		ret = tps65910_reg_set_bits(tps65910,
				TPS65910_SLEEP_KEEP_RES_ON,
				SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
		if (ret < 0) {
			dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
			goto disable_dev_slp;
		}
	}

	return 0;

disable_dev_slp:
	tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
				DEVCTRL_DEV_SLP_MASK);

err_sleep_init:
	return ret;
}

#ifdef CONFIG_OF
static struct of_device_id tps65910_of_match[] = {
	{ .compatible = "ti,tps65910", .data = (void *)TPS65910},
	{ .compatible = "ti,tps65911", .data = (void *)TPS65911},
	{ },
};
MODULE_DEVICE_TABLE(of, tps65910_of_match);

static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
						int *chip_id)
{
	struct device_node *np = client->dev.of_node;
	struct tps65910_board *board_info;
	unsigned int prop;
	const struct of_device_id *match;
	int ret = 0;

	match = of_match_device(tps65910_of_match, &client->dev);
	if (!match) {
		dev_err(&client->dev, "Failed to find matching dt id\n");
		return NULL;
	}

	*chip_id  = (int)match->data;

	board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
			GFP_KERNEL);
	if (!board_info) {
		dev_err(&client->dev, "Failed to allocate pdata\n");
		return NULL;
	}

	ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
	if (!ret)
		board_info->vmbch_threshold = prop;
	else if (*chip_id == TPS65911)
		dev_warn(&client->dev, "VMBCH-Threshold not specified");

	ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
	if (!ret)
		board_info->vmbch2_threshold = prop;
	else if (*chip_id == TPS65911)
		dev_warn(&client->dev, "VMBCH2-Threshold not specified");

	prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
	board_info->en_ck32k_xtal = prop;

	board_info->irq = client->irq;
	board_info->irq_base = -1;
	board_info->pm_off = of_property_read_bool(np,
			"ti,system-power-controller");

	return board_info;
}
#else
static inline
struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
					 int *chip_id)
{
	return NULL;
}
#endif

static struct i2c_client *tps65910_i2c_client;
static void tps65910_power_off(void)
{
	struct tps65910 *tps65910;

	tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);

	if (tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
			DEVCTRL_PWR_OFF_MASK) < 0)
		return;

	tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
			DEVCTRL_DEV_ON_MASK);
}

static int tps65910_i2c_probe(struct i2c_client *i2c,
					const struct i2c_device_id *id)
{
	struct tps65910 *tps65910;
	struct tps65910_board *pmic_plat_data;
	struct tps65910_board *of_pmic_plat_data = NULL;
	struct tps65910_platform_data *init_data;
	int ret = 0;
	int chip_id = id->driver_data;

	pmic_plat_data = dev_get_platdata(&i2c->dev);

	if (!pmic_plat_data && i2c->dev.of_node) {
		pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
		of_pmic_plat_data = pmic_plat_data;
	}

	if (!pmic_plat_data)
		return -EINVAL;

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

	tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
	if (tps65910 == NULL)
		return -ENOMEM;

	tps65910->of_plat_data = of_pmic_plat_data;
	i2c_set_clientdata(i2c, tps65910);
	tps65910->dev = &i2c->dev;
	tps65910->i2c_client = i2c;
	tps65910->id = chip_id;
	mutex_init(&tps65910->io_mutex);

	tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
	if (IS_ERR(tps65910->regmap)) {
		ret = PTR_ERR(tps65910->regmap);
		dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
		return ret;
	}

	ret = mfd_add_devices(tps65910->dev, -1,
			      tps65910s, ARRAY_SIZE(tps65910s),
			      NULL, 0, NULL);
	if (ret < 0) {
		dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
		return ret;
	}

	init_data->irq = pmic_plat_data->irq;
	init_data->irq_base = pmic_plat_data->irq_base;

	tps65910_irq_init(tps65910, init_data->irq, init_data);
	tps65910_ck32k_init(tps65910, pmic_plat_data);
	tps65910_sleepinit(tps65910, pmic_plat_data);

	if (pmic_plat_data->pm_off && !pm_power_off) {
		tps65910_i2c_client = i2c;
		pm_power_off = tps65910_power_off;
	}

	return ret;
}

static int tps65910_i2c_remove(struct i2c_client *i2c)
{
	struct tps65910 *tps65910 = i2c_get_clientdata(i2c);

	tps65910_irq_exit(tps65910);
	mfd_remove_devices(tps65910->dev);

	return 0;
}

static const struct i2c_device_id tps65910_i2c_id[] = {
       { "tps65910", TPS65910 },
       { "tps65911", TPS65911 },
       { }
};
MODULE_DEVICE_TABLE(i2c, tps65910_i2c_id);


static struct i2c_driver tps65910_i2c_driver = {
	.driver = {
		   .name = "tps65910",
		   .owner = THIS_MODULE,
		   .of_match_table = of_match_ptr(tps65910_of_match),
	},
	.probe = tps65910_i2c_probe,
	.remove = tps65910_i2c_remove,
	.id_table = tps65910_i2c_id,
};

static int __init tps65910_i2c_init(void)
{
	return i2c_add_driver(&tps65910_i2c_driver);
}
/* init early so consumer devices can complete system boot */
subsys_initcall(tps65910_i2c_init);

static void __exit tps65910_i2c_exit(void)
{
	i2c_del_driver(&tps65910_i2c_driver);
}
module_exit(tps65910_i2c_exit);

MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
MODULE_AUTHOR("Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>");
MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
27c6750e GG	1	/*
	2	* tps65910.c -- TI TPS6591x
	3	*
	4	* Copyright 2010 Texas Instruments Inc.
	5	*
	6	* Author: Graeme Gregory <gg@slimlogic.co.uk>
	7	* Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public License as published by the
	11	* Free Software Foundation; either version 2 of the License, or (at your
	12	* option) any later version.
	13	*
	14	*/
	15
	16	#include <linux/module.h>
	17	#include <linux/moduleparam.h>
	18	#include <linux/init.h>
dc9913a0	19	#include <linux/err.h>
27c6750e GG	20	#include <linux/slab.h>
27c6750e GG	21	#include <linux/i2c.h>
27c6750e	22	#include <linux/mfd/core.h>
dc9913a0	23	#include <linux/regmap.h>
27c6750e	24	#include <linux/mfd/tps65910.h>
cd4209ce	25	#include <linux/of_device.h>
27c6750e	26
5863eabb VB	27	static struct resource rtc_resources[] = {
	28	{
	29	.start = TPS65910_IRQ_RTC_ALARM,
	30	.end = TPS65910_IRQ_RTC_ALARM,
	31	.flags = IORESOURCE_IRQ,
	32	}
	33	};
	34
27c6750e	35	static struct mfd_cell tps65910s[] = {
32df986e LD	36	{
	37	.name = "tps65910-gpio",
	38	},
27c6750e GG	39	{
	40	.name = "tps65910-pmic",
	41	},
	42	{
	43	.name = "tps65910-rtc",
5863eabb VB	44	.num_resources = ARRAY_SIZE(rtc_resources),
5863eabb VB	45	.resources = &rtc_resources[0],
27c6750e GG	46	},
	47	{
	48	.name = "tps65910-power",
	49	},
	50	};
	51
	52
dc9913a0 LD	53	static bool is_volatile_reg(struct device *dev, unsigned int reg)
	54	{
	55	struct tps65910 *tps65910 = dev_get_drvdata(dev);
	56
	57	/*
	58	* Caching all regulator registers.
	59	* All regualator register address range is same for
	60	* TPS65910 and TPS65911
	61	*/
	62	if ((reg >= TPS65910_VIO) && (reg <= TPS65910_VDAC)) {
	63	/* Check for non-existing register */
	64	if (tps65910_chip_id(tps65910) == TPS65910)
	65	if ((reg == TPS65911_VDDCTRL_OP) \|\|
	66	(reg == TPS65911_VDDCTRL_SR))
	67	return true;
	68	return false;
	69	}
	70	return true;
	71	}
	72
39ecb037	73	static const struct regmap_config tps65910_regmap_config = {
dc9913a0 LD	74	.reg_bits = 8,
	75	.val_bits = 8,
	76	.volatile_reg = is_volatile_reg,
3bf6bf9b	77	.max_register = TPS65910_MAX_REGISTER - 1,
dc9913a0 LD	78	.cache_type = REGCACHE_RBTREE,
	79	};
	80
f791be49	81	static int tps65910_ck32k_init(struct tps65910 *tps65910,
712db99d JH	82	struct tps65910_board *pmic_pdata)
712db99d JH	83	{
712db99d JH	84	int ret;
712db99d JH	85
d02e83cb JH	86	if (!pmic_pdata->en_ck32k_xtal)
	87	return 0;
	88
	89	ret = tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
712db99d	90	DEVCTRL_CK32K_CTRL_MASK);
d02e83cb JH	91	if (ret < 0) {
	92	dev_err(tps65910->dev, "clear ck32k_ctrl failed: %d\n", ret);
	93	return ret;
712db99d JH	94	}
	95
	96	return 0;
	97	}
	98
f791be49	99	static int tps65910_sleepinit(struct tps65910 *tps65910,
201cf052 LD	100	struct tps65910_board *pmic_pdata)
	101	{
	102	struct device *dev = NULL;
	103	int ret = 0;
	104
	105	dev = tps65910->dev;
	106
	107	if (!pmic_pdata->en_dev_slp)
	108	return 0;
	109
	110	/* enabling SLEEP device state */
3f7e8275	111	ret = tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
201cf052 LD	112	DEVCTRL_DEV_SLP_MASK);
	113	if (ret < 0) {
	114	dev_err(dev, "set dev_slp failed: %d\n", ret);
	115	goto err_sleep_init;
	116	}
	117
	118	/* Return if there is no sleep keepon data. */
	119	if (!pmic_pdata->slp_keepon)
	120	return 0;
	121
	122	if (pmic_pdata->slp_keepon->therm_keepon) {
3f7e8275 RK	123	ret = tps65910_reg_set_bits(tps65910,
3f7e8275 RK	124	TPS65910_SLEEP_KEEP_RES_ON,
201cf052 LD	125	SLEEP_KEEP_RES_ON_THERM_KEEPON_MASK);
	126	if (ret < 0) {
	127	dev_err(dev, "set therm_keepon failed: %d\n", ret);
	128	goto disable_dev_slp;
	129	}
	130	}
	131
	132	if (pmic_pdata->slp_keepon->clkout32k_keepon) {
3f7e8275 RK	133	ret = tps65910_reg_set_bits(tps65910,
3f7e8275 RK	134	TPS65910_SLEEP_KEEP_RES_ON,
201cf052 LD	135	SLEEP_KEEP_RES_ON_CLKOUT32K_KEEPON_MASK);
	136	if (ret < 0) {
	137	dev_err(dev, "set clkout32k_keepon failed: %d\n", ret);
	138	goto disable_dev_slp;
	139	}
	140	}
	141
	142	if (pmic_pdata->slp_keepon->i2chs_keepon) {
3f7e8275 RK	143	ret = tps65910_reg_set_bits(tps65910,
3f7e8275 RK	144	TPS65910_SLEEP_KEEP_RES_ON,
201cf052 LD	145	SLEEP_KEEP_RES_ON_I2CHS_KEEPON_MASK);
	146	if (ret < 0) {
	147	dev_err(dev, "set i2chs_keepon failed: %d\n", ret);
	148	goto disable_dev_slp;
	149	}
	150	}
	151
	152	return 0;
	153
	154	disable_dev_slp:
3f7e8275 RK	155	tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
3f7e8275 RK	156	DEVCTRL_DEV_SLP_MASK);
201cf052 LD	157
	158	err_sleep_init:
	159	return ret;
	160	}
	161
cd4209ce RK	162	#ifdef CONFIG_OF
	163	static struct of_device_id tps65910_of_match[] = {
	164	{ .compatible = "ti,tps65910", .data = (void *)TPS65910},
	165	{ .compatible = "ti,tps65911", .data = (void *)TPS65911},
	166	{ },
	167	};
	168	MODULE_DEVICE_TABLE(of, tps65910_of_match);
	169
	170	static struct tps65910_board tps65910_parse_dt(struct i2c_client client,
	171	int *chip_id)
	172	{
	173	struct device_node *np = client->dev.of_node;
	174	struct tps65910_board *board_info;
	175	unsigned int prop;
	176	const struct of_device_id *match;
cd4209ce	177	int ret = 0;
cd4209ce RK	178
	179	match = of_match_device(tps65910_of_match, &client->dev);
	180	if (!match) {
	181	dev_err(&client->dev, "Failed to find matching dt id\n");
	182	return NULL;
	183	}
	184
	185	*chip_id = (int)match->data;
	186
	187	board_info = devm_kzalloc(&client->dev, sizeof(*board_info),
	188	GFP_KERNEL);
	189	if (!board_info) {
	190	dev_err(&client->dev, "Failed to allocate pdata\n");
	191	return NULL;
	192	}
	193
	194	ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
	195	if (!ret)
	196	board_info->vmbch_threshold = prop;
	197	else if (*chip_id == TPS65911)
	198	dev_warn(&client->dev, "VMBCH-Threshold not specified");
	199
	200	ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
	201	if (!ret)
	202	board_info->vmbch2_threshold = prop;
	203	else if (*chip_id == TPS65911)
	204	dev_warn(&client->dev, "VMBCH2-Threshold not specified");
	205
bcc1dd4c JH	206	prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
	207	board_info->en_ck32k_xtal = prop;
	208
cd4209ce RK	209	board_info->irq = client->irq;
cd4209ce RK	210	board_info->irq_base = -1;
b079fa72 BH	211	board_info->pm_off = of_property_read_bool(np,
b079fa72 BH	212	"ti,system-power-controller");
cd4209ce RK	213
	214	return board_info;
	215	}
	216	#else
7f65f74c SO	217	static inline
	218	struct tps65910_board tps65910_parse_dt(struct i2c_client client,
	219	int *chip_id)
cd4209ce RK	220	{
	221	return NULL;
	222	}
	223	#endif
201cf052	224
b079fa72 BH	225	static struct i2c_client *tps65910_i2c_client;
	226	static void tps65910_power_off(void)
	227	{
	228	struct tps65910 *tps65910;
	229
	230	tps65910 = dev_get_drvdata(&tps65910_i2c_client->dev);
	231
	232	if (tps65910_reg_set_bits(tps65910, TPS65910_DEVCTRL,
	233	DEVCTRL_PWR_OFF_MASK) < 0)
	234	return;
	235
	236	tps65910_reg_clear_bits(tps65910, TPS65910_DEVCTRL,
	237	DEVCTRL_DEV_ON_MASK);
	238	}
	239
f791be49	240	static int tps65910_i2c_probe(struct i2c_client *i2c,
63745d40	241	const struct i2c_device_id *id)
27c6750e GG	242	{
27c6750e GG	243	struct tps65910 *tps65910;
2537df72	244	struct tps65910_board *pmic_plat_data;
cb8d8654	245	struct tps65910_board *of_pmic_plat_data = NULL;
e3471bdc	246	struct tps65910_platform_data *init_data;
27c6750e	247	int ret = 0;
cd4209ce	248	int chip_id = id->driver_data;
27c6750e	249
2537df72	250	pmic_plat_data = dev_get_platdata(&i2c->dev);
cd4209ce	251
cb8d8654	252	if (!pmic_plat_data && i2c->dev.of_node) {
cd4209ce	253	pmic_plat_data = tps65910_parse_dt(i2c, &chip_id);
cb8d8654 LD	254	of_pmic_plat_data = pmic_plat_data;
cb8d8654 LD	255	}
cd4209ce	256
2537df72 GG	257	if (!pmic_plat_data)
	258	return -EINVAL;
	259
63fe7dee	260	init_data = devm_kzalloc(&i2c->dev, sizeof(*init_data), GFP_KERNEL);
e3471bdc GG	261	if (init_data == NULL)
	262	return -ENOMEM;
	263
63fe7dee LD	264	tps65910 = devm_kzalloc(&i2c->dev, sizeof(*tps65910), GFP_KERNEL);
63fe7dee LD	265	if (tps65910 == NULL)
27c6750e GG	266	return -ENOMEM;
27c6750e GG	267
cb8d8654	268	tps65910->of_plat_data = of_pmic_plat_data;
27c6750e GG	269	i2c_set_clientdata(i2c, tps65910);
	270	tps65910->dev = &i2c->dev;
	271	tps65910->i2c_client = i2c;
cd4209ce	272	tps65910->id = chip_id;
27c6750e GG	273	mutex_init(&tps65910->io_mutex);
27c6750e GG	274
63fe7dee	275	tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config);
dc9913a0 LD	276	if (IS_ERR(tps65910->regmap)) {
	277	ret = PTR_ERR(tps65910->regmap);
	278	dev_err(&i2c->dev, "regmap initialization failed: %d\n", ret);
63fe7dee	279	return ret;
dc9913a0 LD	280	}
dc9913a0 LD	281
27c6750e GG	282	ret = mfd_add_devices(tps65910->dev, -1,
27c6750e GG	283	tps65910s, ARRAY_SIZE(tps65910s),
55692af5	284	NULL, 0, NULL);
63fe7dee LD	285	if (ret < 0) {
	286	dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret);
	287	return ret;
	288	}
27c6750e	289
b1224cd1	290	init_data->irq = pmic_plat_data->irq;
1773140f	291	init_data->irq_base = pmic_plat_data->irq_base;
b1224cd1	292
1e351a95	293	tps65910_irq_init(tps65910, init_data->irq, init_data);
d02e83cb	294	tps65910_ck32k_init(tps65910, pmic_plat_data);
201cf052 LD	295	tps65910_sleepinit(tps65910, pmic_plat_data);
201cf052 LD	296
b079fa72 BH	297	if (pmic_plat_data->pm_off && !pm_power_off) {
	298	tps65910_i2c_client = i2c;
	299	pm_power_off = tps65910_power_off;
	300	}
	301
27c6750e GG	302	return ret;
	303	}
	304
4740f73f	305	static int tps65910_i2c_remove(struct i2c_client *i2c)
27c6750e GG	306	{
	307	struct tps65910 *tps65910 = i2c_get_clientdata(i2c);
	308
ec2328c3	309	tps65910_irq_exit(tps65910);
1e351a95	310	mfd_remove_devices(tps65910->dev);
27c6750e GG	311
	312	return 0;
	313	}
	314
	315	static const struct i2c_device_id tps65910_i2c_id[] = {
79557056 JEC	316	{ "tps65910", TPS65910 },
79557056 JEC	317	{ "tps65911", TPS65911 },
27c6750e GG	318	{ }
	319	};
	320	MODULE_DEVICE_TABLE(i2c, tps65910_i2c_id);
	321
	322
	323	static struct i2c_driver tps65910_i2c_driver = {
	324	.driver = {
	325	.name = "tps65910",
	326	.owner = THIS_MODULE,
cd4209ce	327	.of_match_table = of_match_ptr(tps65910_of_match),
27c6750e GG	328	},
27c6750e GG	329	.probe = tps65910_i2c_probe,
84449216	330	.remove = tps65910_i2c_remove,
27c6750e GG	331	.id_table = tps65910_i2c_id,
	332	};
	333
	334	static int __init tps65910_i2c_init(void)
	335	{
	336	return i2c_add_driver(&tps65910_i2c_driver);
	337	}
	338	/* init early so consumer devices can complete system boot */
	339	subsys_initcall(tps65910_i2c_init);
	340
	341	static void __exit tps65910_i2c_exit(void)
	342	{
	343	i2c_del_driver(&tps65910_i2c_driver);
	344	}
	345	module_exit(tps65910_i2c_exit);
	346
	347	MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
	348	MODULE_AUTHOR("Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>");
	349	MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
	350	MODULE_LICENSE("GPL");