[mirror_ubuntu-artful-kernel.git] / drivers / mfd / max8997.c

/*
 * max8997.c - mfd core driver for the Maxim 8966 and 8997
 *
 * Copyright (C) 2011 Samsung Electronics
 * MyungJoo Ham <myungjoo.ham@smasung.com>
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * This driver is based on max8998.c
 */

#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/pm_runtime.h>
#include <linux/mutex.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max8997.h>
#include <linux/mfd/max8997-private.h>

#define I2C_ADDR_PMIC	(0xCC >> 1)
#define I2C_ADDR_MUIC	(0x4A >> 1)
#define I2C_ADDR_BATTERY	(0x6C >> 1)
#define I2C_ADDR_RTC	(0x0C >> 1)
#define I2C_ADDR_HAPTIC	(0x90 >> 1)

static struct mfd_cell max8997_devs[] = {
	{ .name = "max8997-pmic", },
	{ .name = "max8997-rtc", },
	{ .name = "max8997-battery", },
	{ .name = "max8997-haptic", },
	{ .name = "max8997-muic", },
	{ .name = "max8997-flash", },
};

int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
{
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int ret;

	mutex_lock(&max8997->iolock);
	ret = i2c_smbus_read_byte_data(i2c, reg);
	mutex_unlock(&max8997->iolock);
	if (ret < 0)
		return ret;

	ret &= 0xff;
	*dest = ret;
	return 0;
}
EXPORT_SYMBOL_GPL(max8997_read_reg);

int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
{
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int ret;

	mutex_lock(&max8997->iolock);
	ret = i2c_smbus_read_i2c_block_data(i2c, reg, count, buf);
	mutex_unlock(&max8997->iolock);
	if (ret < 0)
		return ret;

	return 0;
}
EXPORT_SYMBOL_GPL(max8997_bulk_read);

int max8997_write_reg(struct i2c_client *i2c, u8 reg, u8 value)
{
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int ret;

	mutex_lock(&max8997->iolock);
	ret = i2c_smbus_write_byte_data(i2c, reg, value);
	mutex_unlock(&max8997->iolock);
	return ret;
}
EXPORT_SYMBOL_GPL(max8997_write_reg);

int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count, u8 *buf)
{
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int ret;

	mutex_lock(&max8997->iolock);
	ret = i2c_smbus_write_i2c_block_data(i2c, reg, count, buf);
	mutex_unlock(&max8997->iolock);
	if (ret < 0)
		return ret;

	return 0;
}
EXPORT_SYMBOL_GPL(max8997_bulk_write);

int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
{
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int ret;

	mutex_lock(&max8997->iolock);
	ret = i2c_smbus_read_byte_data(i2c, reg);
	if (ret >= 0) {
		u8 old_val = ret & 0xff;
		u8 new_val = (val & mask) | (old_val & (~mask));
		ret = i2c_smbus_write_byte_data(i2c, reg, new_val);
	}
	mutex_unlock(&max8997->iolock);
	return ret;
}
EXPORT_SYMBOL_GPL(max8997_update_reg);

static int max8997_i2c_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct max8997_dev *max8997;
	struct max8997_platform_data *pdata = i2c->dev.platform_data;
	int ret = 0;

	max8997 = kzalloc(sizeof(struct max8997_dev), GFP_KERNEL);
	if (max8997 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, max8997);
	max8997->dev = &i2c->dev;
	max8997->i2c = i2c;
	max8997->type = id->driver_data;
	max8997->irq = i2c->irq;

	if (!pdata)
		goto err;

	max8997->irq_base = pdata->irq_base;
	max8997->ono = pdata->ono;
	max8997->wakeup = pdata->wakeup;

	mutex_init(&max8997->iolock);

	max8997->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
	i2c_set_clientdata(max8997->rtc, max8997);
	max8997->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
	i2c_set_clientdata(max8997->haptic, max8997);
	max8997->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
	i2c_set_clientdata(max8997->muic, max8997);

	pm_runtime_set_active(max8997->dev);

	max8997_irq_init(max8997);

	mfd_add_devices(max8997->dev, -1, max8997_devs,
			ARRAY_SIZE(max8997_devs),
			NULL, 0);

	/*
	 * TODO: enable others (flash, muic, rtc, battery, ...) and
	 * check the return value
	 */

	if (ret < 0)
		goto err_mfd;

	return ret;

err_mfd:
	mfd_remove_devices(max8997->dev);
	i2c_unregister_device(max8997->muic);
	i2c_unregister_device(max8997->haptic);
	i2c_unregister_device(max8997->rtc);
err:
	kfree(max8997);
	return ret;
}

static int max8997_i2c_remove(struct i2c_client *i2c)
{
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);

	mfd_remove_devices(max8997->dev);
	i2c_unregister_device(max8997->muic);
	i2c_unregister_device(max8997->haptic);
	i2c_unregister_device(max8997->rtc);
	kfree(max8997);

	return 0;
}

static const struct i2c_device_id max8997_i2c_id[] = {
	{ "max8997", TYPE_MAX8997 },
	{ "max8966", TYPE_MAX8966 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, max8998_i2c_id);

u8 max8997_dumpaddr_pmic[] = {
	MAX8997_REG_INT1MSK,
	MAX8997_REG_INT2MSK,
	MAX8997_REG_INT3MSK,
	MAX8997_REG_INT4MSK,
	MAX8997_REG_MAINCON1,
	MAX8997_REG_MAINCON2,
	MAX8997_REG_BUCKRAMP,
	MAX8997_REG_BUCK1CTRL,
	MAX8997_REG_BUCK1DVS1,
	MAX8997_REG_BUCK1DVS2,
	MAX8997_REG_BUCK1DVS3,
	MAX8997_REG_BUCK1DVS4,
	MAX8997_REG_BUCK1DVS5,
	MAX8997_REG_BUCK1DVS6,
	MAX8997_REG_BUCK1DVS7,
	MAX8997_REG_BUCK1DVS8,
	MAX8997_REG_BUCK2CTRL,
	MAX8997_REG_BUCK2DVS1,
	MAX8997_REG_BUCK2DVS2,
	MAX8997_REG_BUCK2DVS3,
	MAX8997_REG_BUCK2DVS4,
	MAX8997_REG_BUCK2DVS5,
	MAX8997_REG_BUCK2DVS6,
	MAX8997_REG_BUCK2DVS7,
	MAX8997_REG_BUCK2DVS8,
	MAX8997_REG_BUCK3CTRL,
	MAX8997_REG_BUCK3DVS,
	MAX8997_REG_BUCK4CTRL,
	MAX8997_REG_BUCK4DVS,
	MAX8997_REG_BUCK5CTRL,
	MAX8997_REG_BUCK5DVS1,
	MAX8997_REG_BUCK5DVS2,
	MAX8997_REG_BUCK5DVS3,
	MAX8997_REG_BUCK5DVS4,
	MAX8997_REG_BUCK5DVS5,
	MAX8997_REG_BUCK5DVS6,
	MAX8997_REG_BUCK5DVS7,
	MAX8997_REG_BUCK5DVS8,
	MAX8997_REG_BUCK6CTRL,
	MAX8997_REG_BUCK6BPSKIPCTRL,
	MAX8997_REG_BUCK7CTRL,
	MAX8997_REG_BUCK7DVS,
	MAX8997_REG_LDO1CTRL,
	MAX8997_REG_LDO2CTRL,
	MAX8997_REG_LDO3CTRL,
	MAX8997_REG_LDO4CTRL,
	MAX8997_REG_LDO5CTRL,
	MAX8997_REG_LDO6CTRL,
	MAX8997_REG_LDO7CTRL,
	MAX8997_REG_LDO8CTRL,
	MAX8997_REG_LDO9CTRL,
	MAX8997_REG_LDO10CTRL,
	MAX8997_REG_LDO11CTRL,
	MAX8997_REG_LDO12CTRL,
	MAX8997_REG_LDO13CTRL,
	MAX8997_REG_LDO14CTRL,
	MAX8997_REG_LDO15CTRL,
	MAX8997_REG_LDO16CTRL,
	MAX8997_REG_LDO17CTRL,
	MAX8997_REG_LDO18CTRL,
	MAX8997_REG_LDO21CTRL,
	MAX8997_REG_MBCCTRL1,
	MAX8997_REG_MBCCTRL2,
	MAX8997_REG_MBCCTRL3,
	MAX8997_REG_MBCCTRL4,
	MAX8997_REG_MBCCTRL5,
	MAX8997_REG_MBCCTRL6,
	MAX8997_REG_OTPCGHCVS,
	MAX8997_REG_SAFEOUTCTRL,
	MAX8997_REG_LBCNFG1,
	MAX8997_REG_LBCNFG2,
	MAX8997_REG_BBCCTRL,

	MAX8997_REG_FLASH1_CUR,
	MAX8997_REG_FLASH2_CUR,
	MAX8997_REG_MOVIE_CUR,
	MAX8997_REG_GSMB_CUR,
	MAX8997_REG_BOOST_CNTL,
	MAX8997_REG_LEN_CNTL,
	MAX8997_REG_FLASH_CNTL,
	MAX8997_REG_WDT_CNTL,
	MAX8997_REG_MAXFLASH1,
	MAX8997_REG_MAXFLASH2,
	MAX8997_REG_FLASHSTATUSMASK,

	MAX8997_REG_GPIOCNTL1,
	MAX8997_REG_GPIOCNTL2,
	MAX8997_REG_GPIOCNTL3,
	MAX8997_REG_GPIOCNTL4,
	MAX8997_REG_GPIOCNTL5,
	MAX8997_REG_GPIOCNTL6,
	MAX8997_REG_GPIOCNTL7,
	MAX8997_REG_GPIOCNTL8,
	MAX8997_REG_GPIOCNTL9,
	MAX8997_REG_GPIOCNTL10,
	MAX8997_REG_GPIOCNTL11,
	MAX8997_REG_GPIOCNTL12,

	MAX8997_REG_LDO1CONFIG,
	MAX8997_REG_LDO2CONFIG,
	MAX8997_REG_LDO3CONFIG,
	MAX8997_REG_LDO4CONFIG,
	MAX8997_REG_LDO5CONFIG,
	MAX8997_REG_LDO6CONFIG,
	MAX8997_REG_LDO7CONFIG,
	MAX8997_REG_LDO8CONFIG,
	MAX8997_REG_LDO9CONFIG,
	MAX8997_REG_LDO10CONFIG,
	MAX8997_REG_LDO11CONFIG,
	MAX8997_REG_LDO12CONFIG,
	MAX8997_REG_LDO13CONFIG,
	MAX8997_REG_LDO14CONFIG,
	MAX8997_REG_LDO15CONFIG,
	MAX8997_REG_LDO16CONFIG,
	MAX8997_REG_LDO17CONFIG,
	MAX8997_REG_LDO18CONFIG,
	MAX8997_REG_LDO21CONFIG,

	MAX8997_REG_DVSOKTIMER1,
	MAX8997_REG_DVSOKTIMER2,
	MAX8997_REG_DVSOKTIMER4,
	MAX8997_REG_DVSOKTIMER5,
};

u8 max8997_dumpaddr_muic[] = {
	MAX8997_MUIC_REG_INTMASK1,
	MAX8997_MUIC_REG_INTMASK2,
	MAX8997_MUIC_REG_INTMASK3,
	MAX8997_MUIC_REG_CDETCTRL,
	MAX8997_MUIC_REG_CONTROL1,
	MAX8997_MUIC_REG_CONTROL2,
	MAX8997_MUIC_REG_CONTROL3,
};

u8 max8997_dumpaddr_haptic[] = {
	MAX8997_HAPTIC_REG_CONF1,
	MAX8997_HAPTIC_REG_CONF2,
	MAX8997_HAPTIC_REG_DRVCONF,
	MAX8997_HAPTIC_REG_CYCLECONF1,
	MAX8997_HAPTIC_REG_CYCLECONF2,
	MAX8997_HAPTIC_REG_SIGCONF1,
	MAX8997_HAPTIC_REG_SIGCONF2,
	MAX8997_HAPTIC_REG_SIGCONF3,
	MAX8997_HAPTIC_REG_SIGCONF4,
	MAX8997_HAPTIC_REG_SIGDC1,
	MAX8997_HAPTIC_REG_SIGDC2,
	MAX8997_HAPTIC_REG_SIGPWMDC1,
	MAX8997_HAPTIC_REG_SIGPWMDC2,
	MAX8997_HAPTIC_REG_SIGPWMDC3,
	MAX8997_HAPTIC_REG_SIGPWMDC4,
};

static int max8997_freeze(struct device *dev)
{
	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int i;

	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++)
		max8997_read_reg(i2c, max8997_dumpaddr_pmic[i],
				&max8997->reg_dump[i]);

	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++)
		max8997_read_reg(i2c, max8997_dumpaddr_muic[i],
				&max8997->reg_dump[i + MAX8997_REG_PMIC_END]);

	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++)
		max8997_read_reg(i2c, max8997_dumpaddr_haptic[i],
				&max8997->reg_dump[i + MAX8997_REG_PMIC_END +
				MAX8997_MUIC_REG_END]);

	return 0;
}

static int max8997_restore(struct device *dev)
{
	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	int i;

	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++)
		max8997_write_reg(i2c, max8997_dumpaddr_pmic[i],
				max8997->reg_dump[i]);

	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++)
		max8997_write_reg(i2c, max8997_dumpaddr_muic[i],
				max8997->reg_dump[i + MAX8997_REG_PMIC_END]);

	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++)
		max8997_write_reg(i2c, max8997_dumpaddr_haptic[i],
				max8997->reg_dump[i + MAX8997_REG_PMIC_END +
				MAX8997_MUIC_REG_END]);

	return 0;
}

const struct dev_pm_ops max8997_pm = {
	.freeze = max8997_freeze,
	.restore = max8997_restore,
};

static struct i2c_driver max8997_i2c_driver = {
	.driver = {
		   .name = "max8997",
		   .owner = THIS_MODULE,
		   .pm = &max8997_pm,
	},
	.probe = max8997_i2c_probe,
	.remove = max8997_i2c_remove,
	.id_table = max8997_i2c_id,
};

static int __init max8997_i2c_init(void)
{
	return i2c_add_driver(&max8997_i2c_driver);
}
/* init early so consumer devices can complete system boot */
subsys_initcall(max8997_i2c_init);

static void __exit max8997_i2c_exit(void)
{
	i2c_del_driver(&max8997_i2c_driver);
}
module_exit(max8997_i2c_exit);

MODULE_DESCRIPTION("MAXIM 8997 multi-function core driver");
MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
527e7e9a MH	1	/*
	2	* max8997.c - mfd core driver for the Maxim 8966 and 8997
	3	*
	4	* Copyright (C) 2011 Samsung Electronics
	5	* MyungJoo Ham <myungjoo.ham@smasung.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*
	21	* This driver is based on max8998.c
	22	*/
	23
	24	#include <linux/slab.h>
	25	#include <linux/i2c.h>
	26	#include <linux/pm_runtime.h>
	27	#include <linux/mutex.h>
	28	#include <linux/mfd/core.h>
	29	#include <linux/mfd/max8997.h>
	30	#include <linux/mfd/max8997-private.h>
	31
	32	#define I2C_ADDR_PMIC (0xCC >> 1)
	33	#define I2C_ADDR_MUIC (0x4A >> 1)
	34	#define I2C_ADDR_BATTERY (0x6C >> 1)
	35	#define I2C_ADDR_RTC (0x0C >> 1)
	36	#define I2C_ADDR_HAPTIC (0x90 >> 1)
	37
	38	static struct mfd_cell max8997_devs[] = {
	39	{ .name = "max8997-pmic", },
	40	{ .name = "max8997-rtc", },
	41	{ .name = "max8997-battery", },
	42	{ .name = "max8997-haptic", },
	43	{ .name = "max8997-muic", },
	44	{ .name = "max8997-flash", },
	45	};
	46
	47	int max8997_read_reg(struct i2c_client i2c, u8 reg, u8 dest)
	48	{
	49	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	50	int ret;
	51
	52	mutex_lock(&max8997->iolock);
	53	ret = i2c_smbus_read_byte_data(i2c, reg);
	54	mutex_unlock(&max8997->iolock);
	55	if (ret < 0)
	56	return ret;
	57
	58	ret &= 0xff;
	59	*dest = ret;
	60	return 0;
	61	}
	62	EXPORT_SYMBOL_GPL(max8997_read_reg);
	63
	64	int max8997_bulk_read(struct i2c_client i2c, u8 reg, int count, u8 buf)
65	{
66	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
67	int ret;
68
69	mutex_lock(&max8997->iolock);
70	ret = i2c_smbus_read_i2c_block_data(i2c, reg, count, buf);
71	mutex_unlock(&max8997->iolock);
72	if (ret < 0)
73	return ret;
74
75	return 0;
76	}
77	EXPORT_SYMBOL_GPL(max8997_bulk_read);
78
79	int max8997_write_reg(struct i2c_client *i2c, u8 reg, u8 value)
80	{
81	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
82	int ret;
83
84	mutex_lock(&max8997->iolock);
85	ret = i2c_smbus_write_byte_data(i2c, reg, value);
86	mutex_unlock(&max8997->iolock);
87	return ret;
88	}
89	EXPORT_SYMBOL_GPL(max8997_write_reg);
90
91	int max8997_bulk_write(struct i2c_client i2c, u8 reg, int count, u8 buf)
92	{
93	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
94	int ret;
95
96	mutex_lock(&max8997->iolock);
97	ret = i2c_smbus_write_i2c_block_data(i2c, reg, count, buf);
98	mutex_unlock(&max8997->iolock);
99	if (ret < 0)
100	return ret;
101
102	return 0;
103	}
104	EXPORT_SYMBOL_GPL(max8997_bulk_write);
105
106	int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask)
107	{
108	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
109	int ret;
110
111	mutex_lock(&max8997->iolock);
112	ret = i2c_smbus_read_byte_data(i2c, reg);
113	if (ret >= 0) {
114	u8 old_val = ret & 0xff;
115	u8 new_val = (val & mask) \| (old_val & (~mask));
116	ret = i2c_smbus_write_byte_data(i2c, reg, new_val);
117	}
118	mutex_unlock(&max8997->iolock);
119	return ret;
120	}
121	EXPORT_SYMBOL_GPL(max8997_update_reg);
122
123	static int max8997_i2c_probe(struct i2c_client *i2c,
124	const struct i2c_device_id *id)
125	{
126	struct max8997_dev *max8997;
127	struct max8997_platform_data *pdata = i2c->dev.platform_data;
128	int ret = 0;
129
130	max8997 = kzalloc(sizeof(struct max8997_dev), GFP_KERNEL);
131	if (max8997 == NULL)
132	return -ENOMEM;
133
134	i2c_set_clientdata(i2c, max8997);
135	max8997->dev = &i2c->dev;
136	max8997->i2c = i2c;
137	max8997->type = id->driver_data;
7eb3154e	138	max8997->irq = i2c->irq;
527e7e9a MH	139
	140	if (!pdata)
	141	goto err;
	142
7eb3154e MH	143	max8997->irq_base = pdata->irq_base;
7eb3154e MH	144	max8997->ono = pdata->ono;
527e7e9a MH	145	max8997->wakeup = pdata->wakeup;
	146
	147	mutex_init(&max8997->iolock);
	148
	149	max8997->rtc = i2c_new_dummy(i2c->adapter, I2C_ADDR_RTC);
	150	i2c_set_clientdata(max8997->rtc, max8997);
	151	max8997->haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
	152	i2c_set_clientdata(max8997->haptic, max8997);
	153	max8997->muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
	154	i2c_set_clientdata(max8997->muic, max8997);
	155
	156	pm_runtime_set_active(max8997->dev);
	157
7eb3154e MH	158	max8997_irq_init(max8997);
7eb3154e MH	159
527e7e9a MH	160	mfd_add_devices(max8997->dev, -1, max8997_devs,
	161	ARRAY_SIZE(max8997_devs),
	162	NULL, 0);
	163
	164	/*
	165	* TODO: enable others (flash, muic, rtc, battery, ...) and
	166	* check the return value
	167	*/
	168
	169	if (ret < 0)
	170	goto err_mfd;
	171
	172	return ret;
	173
	174	err_mfd:
	175	mfd_remove_devices(max8997->dev);
	176	i2c_unregister_device(max8997->muic);
	177	i2c_unregister_device(max8997->haptic);
	178	i2c_unregister_device(max8997->rtc);
	179	err:
	180	kfree(max8997);
	181	return ret;
	182	}
	183
	184	static int max8997_i2c_remove(struct i2c_client *i2c)
	185	{
	186	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
	187
	188	mfd_remove_devices(max8997->dev);
	189	i2c_unregister_device(max8997->muic);
	190	i2c_unregister_device(max8997->haptic);
	191	i2c_unregister_device(max8997->rtc);
	192	kfree(max8997);
	193
	194	return 0;
	195	}
	196
	197	static const struct i2c_device_id max8997_i2c_id[] = {
	198	{ "max8997", TYPE_MAX8997 },
	199	{ "max8966", TYPE_MAX8966 },
	200	{ }
	201	};
	202	MODULE_DEVICE_TABLE(i2c, max8998_i2c_id);
	203
	204	u8 max8997_dumpaddr_pmic[] = {
	205	MAX8997_REG_INT1MSK,
	206	MAX8997_REG_INT2MSK,
	207	MAX8997_REG_INT3MSK,
	208	MAX8997_REG_INT4MSK,
	209	MAX8997_REG_MAINCON1,
	210	MAX8997_REG_MAINCON2,
	211	MAX8997_REG_BUCKRAMP,
	212	MAX8997_REG_BUCK1CTRL,
	213	MAX8997_REG_BUCK1DVS1,
	214	MAX8997_REG_BUCK1DVS2,
	215	MAX8997_REG_BUCK1DVS3,
	216	MAX8997_REG_BUCK1DVS4,
	217	MAX8997_REG_BUCK1DVS5,
	218	MAX8997_REG_BUCK1DVS6,
	219	MAX8997_REG_BUCK1DVS7,
	220	MAX8997_REG_BUCK1DVS8,
	221	MAX8997_REG_BUCK2CTRL,
	222	MAX8997_REG_BUCK2DVS1,
	223	MAX8997_REG_BUCK2DVS2,
224	MAX8997_REG_BUCK2DVS3,
225	MAX8997_REG_BUCK2DVS4,
226	MAX8997_REG_BUCK2DVS5,
227	MAX8997_REG_BUCK2DVS6,
228	MAX8997_REG_BUCK2DVS7,
229	MAX8997_REG_BUCK2DVS8,
230	MAX8997_REG_BUCK3CTRL,
231	MAX8997_REG_BUCK3DVS,
232	MAX8997_REG_BUCK4CTRL,
233	MAX8997_REG_BUCK4DVS,
234	MAX8997_REG_BUCK5CTRL,
235	MAX8997_REG_BUCK5DVS1,
236	MAX8997_REG_BUCK5DVS2,
237	MAX8997_REG_BUCK5DVS3,
238	MAX8997_REG_BUCK5DVS4,
239	MAX8997_REG_BUCK5DVS5,
240	MAX8997_REG_BUCK5DVS6,
241	MAX8997_REG_BUCK5DVS7,
242	MAX8997_REG_BUCK5DVS8,
243	MAX8997_REG_BUCK6CTRL,
244	MAX8997_REG_BUCK6BPSKIPCTRL,
245	MAX8997_REG_BUCK7CTRL,
246	MAX8997_REG_BUCK7DVS,
247	MAX8997_REG_LDO1CTRL,
248	MAX8997_REG_LDO2CTRL,
249	MAX8997_REG_LDO3CTRL,
250	MAX8997_REG_LDO4CTRL,
251	MAX8997_REG_LDO5CTRL,
252	MAX8997_REG_LDO6CTRL,
253	MAX8997_REG_LDO7CTRL,
254	MAX8997_REG_LDO8CTRL,
255	MAX8997_REG_LDO9CTRL,
256	MAX8997_REG_LDO10CTRL,
257	MAX8997_REG_LDO11CTRL,
258	MAX8997_REG_LDO12CTRL,
259	MAX8997_REG_LDO13CTRL,
260	MAX8997_REG_LDO14CTRL,
261	MAX8997_REG_LDO15CTRL,
262	MAX8997_REG_LDO16CTRL,
263	MAX8997_REG_LDO17CTRL,
264	MAX8997_REG_LDO18CTRL,
265	MAX8997_REG_LDO21CTRL,
266	MAX8997_REG_MBCCTRL1,
267	MAX8997_REG_MBCCTRL2,
268	MAX8997_REG_MBCCTRL3,
269	MAX8997_REG_MBCCTRL4,
270	MAX8997_REG_MBCCTRL5,
271	MAX8997_REG_MBCCTRL6,
272	MAX8997_REG_OTPCGHCVS,
273	MAX8997_REG_SAFEOUTCTRL,
274	MAX8997_REG_LBCNFG1,
275	MAX8997_REG_LBCNFG2,
276	MAX8997_REG_BBCCTRL,
277
278	MAX8997_REG_FLASH1_CUR,
279	MAX8997_REG_FLASH2_CUR,
280	MAX8997_REG_MOVIE_CUR,
281	MAX8997_REG_GSMB_CUR,
282	MAX8997_REG_BOOST_CNTL,
283	MAX8997_REG_LEN_CNTL,
284	MAX8997_REG_FLASH_CNTL,
285	MAX8997_REG_WDT_CNTL,
286	MAX8997_REG_MAXFLASH1,
287	MAX8997_REG_MAXFLASH2,
288	MAX8997_REG_FLASHSTATUSMASK,
289
290	MAX8997_REG_GPIOCNTL1,
291	MAX8997_REG_GPIOCNTL2,
292	MAX8997_REG_GPIOCNTL3,
293	MAX8997_REG_GPIOCNTL4,
294	MAX8997_REG_GPIOCNTL5,
295	MAX8997_REG_GPIOCNTL6,
296	MAX8997_REG_GPIOCNTL7,
297	MAX8997_REG_GPIOCNTL8,
298	MAX8997_REG_GPIOCNTL9,
299	MAX8997_REG_GPIOCNTL10,
300	MAX8997_REG_GPIOCNTL11,
301	MAX8997_REG_GPIOCNTL12,
302
303	MAX8997_REG_LDO1CONFIG,
304	MAX8997_REG_LDO2CONFIG,
305	MAX8997_REG_LDO3CONFIG,
306	MAX8997_REG_LDO4CONFIG,
307	MAX8997_REG_LDO5CONFIG,
308	MAX8997_REG_LDO6CONFIG,
309	MAX8997_REG_LDO7CONFIG,
310	MAX8997_REG_LDO8CONFIG,
311	MAX8997_REG_LDO9CONFIG,
312	MAX8997_REG_LDO10CONFIG,
313	MAX8997_REG_LDO11CONFIG,
314	MAX8997_REG_LDO12CONFIG,
315	MAX8997_REG_LDO13CONFIG,
316	MAX8997_REG_LDO14CONFIG,
317	MAX8997_REG_LDO15CONFIG,
318	MAX8997_REG_LDO16CONFIG,
319	MAX8997_REG_LDO17CONFIG,
320	MAX8997_REG_LDO18CONFIG,
321	MAX8997_REG_LDO21CONFIG,
322
323	MAX8997_REG_DVSOKTIMER1,
324	MAX8997_REG_DVSOKTIMER2,
325	MAX8997_REG_DVSOKTIMER4,
326	MAX8997_REG_DVSOKTIMER5,
327	};
328
329	u8 max8997_dumpaddr_muic[] = {
330	MAX8997_MUIC_REG_INTMASK1,
331	MAX8997_MUIC_REG_INTMASK2,
332	MAX8997_MUIC_REG_INTMASK3,
333	MAX8997_MUIC_REG_CDETCTRL,
334	MAX8997_MUIC_REG_CONTROL1,
335	MAX8997_MUIC_REG_CONTROL2,
336	MAX8997_MUIC_REG_CONTROL3,
337	};
338
339	u8 max8997_dumpaddr_haptic[] = {
340	MAX8997_HAPTIC_REG_CONF1,
341	MAX8997_HAPTIC_REG_CONF2,
342	MAX8997_HAPTIC_REG_DRVCONF,
343	MAX8997_HAPTIC_REG_CYCLECONF1,
344	MAX8997_HAPTIC_REG_CYCLECONF2,
345	MAX8997_HAPTIC_REG_SIGCONF1,
346	MAX8997_HAPTIC_REG_SIGCONF2,
347	MAX8997_HAPTIC_REG_SIGCONF3,
348	MAX8997_HAPTIC_REG_SIGCONF4,
349	MAX8997_HAPTIC_REG_SIGDC1,
350	MAX8997_HAPTIC_REG_SIGDC2,
351	MAX8997_HAPTIC_REG_SIGPWMDC1,
352	MAX8997_HAPTIC_REG_SIGPWMDC2,
353	MAX8997_HAPTIC_REG_SIGPWMDC3,
354	MAX8997_HAPTIC_REG_SIGPWMDC4,
355	};
356
357	static int max8997_freeze(struct device *dev)
358	{
359	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
360	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
361	int i;
362
363	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++)
364	max8997_read_reg(i2c, max8997_dumpaddr_pmic[i],
365	&max8997->reg_dump[i]);
366
367	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++)
368	max8997_read_reg(i2c, max8997_dumpaddr_muic[i],
369	&max8997->reg_dump[i + MAX8997_REG_PMIC_END]);
370
371	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++)
372	max8997_read_reg(i2c, max8997_dumpaddr_haptic[i],
373	&max8997->reg_dump[i + MAX8997_REG_PMIC_END +
374	MAX8997_MUIC_REG_END]);
375
376	return 0;
377	}
378
379	static int max8997_restore(struct device *dev)
380	{
381	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
382	struct max8997_dev *max8997 = i2c_get_clientdata(i2c);
383	int i;
384
385	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_pmic); i++)
386	max8997_write_reg(i2c, max8997_dumpaddr_pmic[i],
387	max8997->reg_dump[i]);
388
389	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_muic); i++)
390	max8997_write_reg(i2c, max8997_dumpaddr_muic[i],
391	max8997->reg_dump[i + MAX8997_REG_PMIC_END]);
392
393	for (i = 0; i < ARRAY_SIZE(max8997_dumpaddr_haptic); i++)
394	max8997_write_reg(i2c, max8997_dumpaddr_haptic[i],
395	max8997->reg_dump[i + MAX8997_REG_PMIC_END +
396	MAX8997_MUIC_REG_END]);
397
398	return 0;
399	}
400
401	const struct dev_pm_ops max8997_pm = {
402	.freeze = max8997_freeze,
403	.restore = max8997_restore,
404	};
405
406	static struct i2c_driver max8997_i2c_driver = {
407	.driver = {
408	.name = "max8997",
409	.owner = THIS_MODULE,
410	.pm = &max8997_pm,
411	},
412	.probe = max8997_i2c_probe,
413	.remove = max8997_i2c_remove,
414	.id_table = max8997_i2c_id,
415	};
416
417	static int __init max8997_i2c_init(void)
418	{
419	return i2c_add_driver(&max8997_i2c_driver);
420	}
421	/* init early so consumer devices can complete system boot */
422	subsys_initcall(max8997_i2c_init);
423
424	static void __exit max8997_i2c_exit(void)
425	{
426	i2c_del_driver(&max8997_i2c_driver);
427	}
428	module_exit(max8997_i2c_exit);
429
430	MODULE_DESCRIPTION("MAXIM 8997 multi-function core driver");
431	MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
432	MODULE_LICENSE("GPL");