[mirror_ubuntu-bionic-kernel.git] / drivers / mfd / max77686.c

/*
 * max77686.c - mfd core driver for the Maxim 77686/802
 *
 * Copyright (C) 2012 Samsung Electronics
 * Chiwoong Byun <woong.byun@samsung.com>
 * Jonghwa Lee <jonghwa3.lee@samsung.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 max8997.c
 */

#include <linux/export.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/module.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max77686.h>
#include <linux/mfd/max77686-private.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_device.h>

static const struct mfd_cell max77686_devs[] = {
	{ .name = "max77686-pmic", },
	{ .name = "max77686-rtc", },
	{ .name = "max77686-clk", },
};

static const struct mfd_cell max77802_devs[] = {
	{ .name = "max77802-pmic", },
	{ .name = "max77802-clk", },
	{ .name = "max77802-rtc", },
};

static bool max77802_pmic_is_accessible_reg(struct device *dev,
					    unsigned int reg)
{
	return reg < MAX77802_REG_PMIC_END;
}

static bool max77802_rtc_is_accessible_reg(struct device *dev,
					   unsigned int reg)
{
	return (reg >= MAX77802_RTC_INT && reg < MAX77802_RTC_END);
}

static bool max77802_is_accessible_reg(struct device *dev, unsigned int reg)
{
	return (max77802_pmic_is_accessible_reg(dev, reg) ||
		max77802_rtc_is_accessible_reg(dev, reg));
}

static bool max77802_pmic_is_precious_reg(struct device *dev, unsigned int reg)
{
	return (reg == MAX77802_REG_INTSRC || reg == MAX77802_REG_INT1 ||
		reg == MAX77802_REG_INT2);
}

static bool max77802_rtc_is_precious_reg(struct device *dev, unsigned int reg)
{
	return (reg == MAX77802_RTC_INT ||
		reg == MAX77802_RTC_UPDATE0 ||
		reg == MAX77802_RTC_UPDATE1);
}

static bool max77802_is_precious_reg(struct device *dev, unsigned int reg)
{
	return (max77802_pmic_is_precious_reg(dev, reg) ||
		max77802_rtc_is_precious_reg(dev, reg));
}

static bool max77802_pmic_is_volatile_reg(struct device *dev, unsigned int reg)
{
	return (max77802_is_precious_reg(dev, reg) ||
		reg == MAX77802_REG_STATUS1 || reg == MAX77802_REG_STATUS2 ||
		reg == MAX77802_REG_PWRON);
}

static bool max77802_rtc_is_volatile_reg(struct device *dev, unsigned int reg)
{
	return (max77802_rtc_is_precious_reg(dev, reg) ||
		reg == MAX77802_RTC_SEC ||
		reg == MAX77802_RTC_MIN ||
		reg == MAX77802_RTC_HOUR ||
		reg == MAX77802_RTC_WEEKDAY ||
		reg == MAX77802_RTC_MONTH ||
		reg == MAX77802_RTC_YEAR ||
		reg == MAX77802_RTC_DATE);
}

static bool max77802_is_volatile_reg(struct device *dev, unsigned int reg)
{
	return (max77802_pmic_is_volatile_reg(dev, reg) ||
		max77802_rtc_is_volatile_reg(dev, reg));
}

static const struct regmap_config max77686_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
};

static const struct regmap_config max77802_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.writeable_reg = max77802_is_accessible_reg,
	.readable_reg = max77802_is_accessible_reg,
	.precious_reg = max77802_is_precious_reg,
	.volatile_reg = max77802_is_volatile_reg,
	.name = "max77802-pmic",
	.cache_type = REGCACHE_RBTREE,
};

static const struct regmap_irq max77686_irqs[] = {
	/* INT1 interrupts */
	{ .reg_offset = 0, .mask = MAX77686_INT1_PWRONF_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_PWRONR_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_JIGONBF_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_JIGONBR_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_ACOKBF_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_ACOKBR_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_ONKEY1S_MSK, },
	{ .reg_offset = 0, .mask = MAX77686_INT1_MRSTB_MSK, },
	/* INT2 interrupts */
	{ .reg_offset = 1, .mask = MAX77686_INT2_140C_MSK, },
	{ .reg_offset = 1, .mask = MAX77686_INT2_120C_MSK, },
};

static const struct regmap_irq_chip max77686_irq_chip = {
	.name			= "max77686-pmic",
	.status_base		= MAX77686_REG_INT1,
	.mask_base		= MAX77686_REG_INT1MSK,
	.num_regs		= 2,
	.irqs			= max77686_irqs,
	.num_irqs		= ARRAY_SIZE(max77686_irqs),
};

static const struct regmap_irq_chip max77802_irq_chip = {
	.name			= "max77802-pmic",
	.status_base		= MAX77802_REG_INT1,
	.mask_base		= MAX77802_REG_INT1MSK,
	.num_regs		= 2,
	.irqs			= max77686_irqs, /* same masks as 77686 */
	.num_irqs		= ARRAY_SIZE(max77686_irqs),
};

static const struct of_device_id max77686_pmic_dt_match[] = {
	{
		.compatible = "maxim,max77686",
		.data = (void *)TYPE_MAX77686,
	},
	{
		.compatible = "maxim,max77802",
		.data = (void *)TYPE_MAX77802,
	},
	{ },
};
MODULE_DEVICE_TABLE(of, max77686_pmic_dt_match);

static int max77686_i2c_probe(struct i2c_client *i2c)
{
	struct max77686_dev *max77686 = NULL;
	unsigned int data;
	int ret = 0;
	const struct regmap_config *config;
	const struct regmap_irq_chip *irq_chip;
	const struct mfd_cell *cells;
	int n_devs;

	max77686 = devm_kzalloc(&i2c->dev,
				sizeof(struct max77686_dev), GFP_KERNEL);
	if (!max77686)
		return -ENOMEM;

	i2c_set_clientdata(i2c, max77686);
	max77686->type = (unsigned long)of_device_get_match_data(&i2c->dev);
	max77686->dev = &i2c->dev;
	max77686->i2c = i2c;

	max77686->irq = i2c->irq;

	if (max77686->type == TYPE_MAX77686) {
		config = &max77686_regmap_config;
		irq_chip = &max77686_irq_chip;
		cells =  max77686_devs;
		n_devs = ARRAY_SIZE(max77686_devs);
	} else {
		config = &max77802_regmap_config;
		irq_chip = &max77802_irq_chip;
		cells =  max77802_devs;
		n_devs = ARRAY_SIZE(max77802_devs);
	}

	max77686->regmap = devm_regmap_init_i2c(i2c, config);
	if (IS_ERR(max77686->regmap)) {
		ret = PTR_ERR(max77686->regmap);
		dev_err(max77686->dev, "Failed to allocate register map: %d\n",
				ret);
		return ret;
	}

	ret = regmap_read(max77686->regmap, MAX77686_REG_DEVICE_ID, &data);
	if (ret < 0) {
		dev_err(max77686->dev,
			"device not found on this channel (this is not an error)\n");
		return -ENODEV;
	}

	ret = devm_regmap_add_irq_chip(&i2c->dev, max77686->regmap,
				       max77686->irq,
				       IRQF_TRIGGER_FALLING | IRQF_ONESHOT |
				       IRQF_SHARED, 0, irq_chip,
				       &max77686->irq_data);
	if (ret < 0) {
		dev_err(&i2c->dev, "failed to add PMIC irq chip: %d\n", ret);
		return ret;
	}

	ret = devm_mfd_add_devices(max77686->dev, -1, cells, n_devs, NULL,
				   0, NULL);
	if (ret < 0) {
		dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
		return ret;
	}

	return 0;
}

#ifdef CONFIG_PM_SLEEP
static int max77686_suspend(struct device *dev)
{
	struct i2c_client *i2c = to_i2c_client(dev);
	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);

	if (device_may_wakeup(dev))
		enable_irq_wake(max77686->irq);

	/*
	 * IRQ must be disabled during suspend because if it happens
	 * while suspended it will be handled before resuming I2C.
	 *
	 * When device is woken up from suspend (e.g. by RTC wake alarm),
	 * an interrupt occurs before resuming I2C bus controller.
	 * Interrupt handler tries to read registers but this read
	 * will fail because I2C is still suspended.
	 */
	disable_irq(max77686->irq);

	return 0;
}

static int max77686_resume(struct device *dev)
{
	struct i2c_client *i2c = to_i2c_client(dev);
	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);

	if (device_may_wakeup(dev))
		disable_irq_wake(max77686->irq);

	enable_irq(max77686->irq);

	return 0;
}
#endif /* CONFIG_PM_SLEEP */

static SIMPLE_DEV_PM_OPS(max77686_pm, max77686_suspend, max77686_resume);

static struct i2c_driver max77686_i2c_driver = {
	.driver = {
		   .name = "max77686",
		   .pm = &max77686_pm,
		   .of_match_table = of_match_ptr(max77686_pmic_dt_match),
	},
	.probe_new = max77686_i2c_probe,
};

module_i2c_driver(max77686_i2c_driver);

MODULE_DESCRIPTION("MAXIM 77686/802 multi-function core driver");
MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
dae8a969	1	/*
a259f389	2	* max77686.c - mfd core driver for the Maxim 77686/802
dae8a969 JL	3	*
dae8a969 JL	4	* Copyright (C) 2012 Samsung Electronics
630fd98c	5	* Chiwoong Byun <woong.byun@samsung.com>
dae8a969 JL	6	* Jonghwa Lee <jonghwa3.lee@samsung.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*
	22	* This driver is based on max8997.c
	23	*/
	24
	25	#include <linux/export.h>
	26	#include <linux/slab.h>
	27	#include <linux/i2c.h>
6f1c1e71 JMC	28	#include <linux/irq.h>
6f1c1e71 JMC	29	#include <linux/interrupt.h>
dae8a969 JL	30	#include <linux/pm_runtime.h>
dae8a969 JL	31	#include <linux/module.h>
dae8a969 JL	32	#include <linux/mfd/core.h>
	33	#include <linux/mfd/max77686.h>
	34	#include <linux/mfd/max77686-private.h>
	35	#include <linux/err.h>
2a048d3b	36	#include <linux/of.h>
68e61f75	37	#include <linux/of_device.h>
dae8a969	38
7c0517b1	39	static const struct mfd_cell max77686_devs[] = {
dae8a969 JL	40	{ .name = "max77686-pmic", },
dae8a969 JL	41	{ .name = "max77686-rtc", },
c0fa7e10	42	{ .name = "max77686-clk", },
dae8a969 JL	43	};
dae8a969 JL	44
a259f389 JMC	45	static const struct mfd_cell max77802_devs[] = {
	46	{ .name = "max77802-pmic", },
	47	{ .name = "max77802-clk", },
	48	{ .name = "max77802-rtc", },
	49	};
	50
	51	static bool max77802_pmic_is_accessible_reg(struct device *dev,
	52	unsigned int reg)
	53	{
b87d9a0f	54	return reg < MAX77802_REG_PMIC_END;
a259f389 JMC	55	}
	56
	57	static bool max77802_rtc_is_accessible_reg(struct device *dev,
	58	unsigned int reg)
	59	{
	60	return (reg >= MAX77802_RTC_INT && reg < MAX77802_RTC_END);
	61	}
	62
	63	static bool max77802_is_accessible_reg(struct device *dev, unsigned int reg)
	64	{
	65	return (max77802_pmic_is_accessible_reg(dev, reg) \|\|
	66	max77802_rtc_is_accessible_reg(dev, reg));
	67	}
	68
	69	static bool max77802_pmic_is_precious_reg(struct device *dev, unsigned int reg)
	70	{
	71	return (reg == MAX77802_REG_INTSRC \|\| reg == MAX77802_REG_INT1 \|\|
	72	reg == MAX77802_REG_INT2);
	73	}
	74
	75	static bool max77802_rtc_is_precious_reg(struct device *dev, unsigned int reg)
	76	{
	77	return (reg == MAX77802_RTC_INT \|\|
	78	reg == MAX77802_RTC_UPDATE0 \|\|
	79	reg == MAX77802_RTC_UPDATE1);
	80	}
	81
	82	static bool max77802_is_precious_reg(struct device *dev, unsigned int reg)
	83	{
	84	return (max77802_pmic_is_precious_reg(dev, reg) \|\|
	85	max77802_rtc_is_precious_reg(dev, reg));
	86	}
	87
	88	static bool max77802_pmic_is_volatile_reg(struct device *dev, unsigned int reg)
	89	{
	90	return (max77802_is_precious_reg(dev, reg) \|\|
	91	reg == MAX77802_REG_STATUS1 \|\| reg == MAX77802_REG_STATUS2 \|\|
	92	reg == MAX77802_REG_PWRON);
	93	}
	94
	95	static bool max77802_rtc_is_volatile_reg(struct device *dev, unsigned int reg)
	96	{
	97	return (max77802_rtc_is_precious_reg(dev, reg) \|\|
	98	reg == MAX77802_RTC_SEC \|\|
	99	reg == MAX77802_RTC_MIN \|\|
	100	reg == MAX77802_RTC_HOUR \|\|
	101	reg == MAX77802_RTC_WEEKDAY \|\|
	102	reg == MAX77802_RTC_MONTH \|\|
	103	reg == MAX77802_RTC_YEAR \|\|
	104	reg == MAX77802_RTC_DATE);
	105	}
	106
	107	static bool max77802_is_volatile_reg(struct device *dev, unsigned int reg)
	108	{
	109	return (max77802_pmic_is_volatile_reg(dev, reg) \|\|
	110	max77802_rtc_is_volatile_reg(dev, reg));
	111	}
	112
68be231c	113	static const struct regmap_config max77686_regmap_config = {
dae8a969 JL	114	.reg_bits = 8,
	115	.val_bits = 8,
	116	};
	117
68be231c	118	static const struct regmap_config max77802_regmap_config = {
a259f389 JMC	119	.reg_bits = 8,
	120	.val_bits = 8,
	121	.writeable_reg = max77802_is_accessible_reg,
	122	.readable_reg = max77802_is_accessible_reg,
	123	.precious_reg = max77802_is_precious_reg,
	124	.volatile_reg = max77802_is_volatile_reg,
	125	.name = "max77802-pmic",
	126	.cache_type = REGCACHE_RBTREE,
	127	};
	128
6f1c1e71 JMC	129	static const struct regmap_irq max77686_irqs[] = {
	130	/* INT1 interrupts */
	131	{ .reg_offset = 0, .mask = MAX77686_INT1_PWRONF_MSK, },
	132	{ .reg_offset = 0, .mask = MAX77686_INT1_PWRONR_MSK, },
	133	{ .reg_offset = 0, .mask = MAX77686_INT1_JIGONBF_MSK, },
	134	{ .reg_offset = 0, .mask = MAX77686_INT1_JIGONBR_MSK, },
	135	{ .reg_offset = 0, .mask = MAX77686_INT1_ACOKBF_MSK, },
	136	{ .reg_offset = 0, .mask = MAX77686_INT1_ACOKBR_MSK, },
	137	{ .reg_offset = 0, .mask = MAX77686_INT1_ONKEY1S_MSK, },
	138	{ .reg_offset = 0, .mask = MAX77686_INT1_MRSTB_MSK, },
	139	/* INT2 interrupts */
	140	{ .reg_offset = 1, .mask = MAX77686_INT2_140C_MSK, },
	141	{ .reg_offset = 1, .mask = MAX77686_INT2_120C_MSK, },
	142	};
	143
	144	static const struct regmap_irq_chip max77686_irq_chip = {
	145	.name = "max77686-pmic",
	146	.status_base = MAX77686_REG_INT1,
	147	.mask_base = MAX77686_REG_INT1MSK,
	148	.num_regs = 2,
	149	.irqs = max77686_irqs,
	150	.num_irqs = ARRAY_SIZE(max77686_irqs),
	151	};
	152
a259f389 JMC	153	static const struct regmap_irq_chip max77802_irq_chip = {
	154	.name = "max77802-pmic",
	155	.status_base = MAX77802_REG_INT1,
	156	.mask_base = MAX77802_REG_INT1MSK,
	157	.num_regs = 2,
	158	.irqs = max77686_irqs, /* same masks as 77686 */
	159	.num_irqs = ARRAY_SIZE(max77686_irqs),
	160	};
	161
b68ece3d	162	static const struct of_device_id max77686_pmic_dt_match[] = {
a259f389 JMC	163	{
	164	.compatible = "maxim,max77686",
	165	.data = (void *)TYPE_MAX77686,
	166	},
	167	{
	168	.compatible = "maxim,max77802",
	169	.data = (void *)TYPE_MAX77802,
	170	},
	171	{ },
2984fc00	172	};
7f8ada1a	173	MODULE_DEVICE_TABLE(of, max77686_pmic_dt_match);
2984fc00	174
be1bb235	175	static int max77686_i2c_probe(struct i2c_client *i2c)
dae8a969	176	{
c1516f84	177	struct max77686_dev *max77686 = NULL;
dae8a969 JL	178	unsigned int data;
dae8a969 JL	179	int ret = 0;
a259f389 JMC	180	const struct regmap_config *config;
a259f389 JMC	181	const struct regmap_irq_chip *irq_chip;
a259f389 JMC	182	const struct mfd_cell *cells;
a259f389 JMC	183	int n_devs;
dae8a969	184
742413a4 LJ	185	max77686 = devm_kzalloc(&i2c->dev,
742413a4 LJ	186	sizeof(struct max77686_dev), GFP_KERNEL);
c0e0fcda	187	if (!max77686)
dae8a969 JL	188	return -ENOMEM;
dae8a969 JL	189
dae8a969	190	i2c_set_clientdata(i2c, max77686);
68e61f75	191	max77686->type = (unsigned long)of_device_get_match_data(&i2c->dev);
dae8a969 JL	192	max77686->dev = &i2c->dev;
dae8a969 JL	193	max77686->i2c = i2c;
dae8a969	194
2b40459b	195	max77686->irq = i2c->irq;
dae8a969	196
a259f389 JMC	197	if (max77686->type == TYPE_MAX77686) {
	198	config = &max77686_regmap_config;
	199	irq_chip = &max77686_irq_chip;
a259f389 JMC	200	cells = max77686_devs;
	201	n_devs = ARRAY_SIZE(max77686_devs);
	202	} else {
	203	config = &max77802_regmap_config;
	204	irq_chip = &max77802_irq_chip;
a259f389 JMC	205	cells = max77802_devs;
	206	n_devs = ARRAY_SIZE(max77802_devs);
	207	}
	208
	209	max77686->regmap = devm_regmap_init_i2c(i2c, config);
136d982e AL	210	if (IS_ERR(max77686->regmap)) {
	211	ret = PTR_ERR(max77686->regmap);
	212	dev_err(max77686->dev, "Failed to allocate register map: %d\n",
	213	ret);
136d982e AL	214	return ret;
	215	}
	216
c0e0fcda JMC	217	ret = regmap_read(max77686->regmap, MAX77686_REG_DEVICE_ID, &data);
c0e0fcda JMC	218	if (ret < 0) {
dae8a969 JL	219	dev_err(max77686->dev,
dae8a969 JL	220	"device not found on this channel (this is not an error)\n");
742413a4	221	return -ENODEV;
6f1c1e71	222	}
dae8a969	223
1a5422c9 LD	224	ret = devm_regmap_add_irq_chip(&i2c->dev, max77686->regmap,
	225	max77686->irq,
	226	IRQF_TRIGGER_FALLING \| IRQF_ONESHOT \|
	227	IRQF_SHARED, 0, irq_chip,
	228	&max77686->irq_data);
f3937549	229	if (ret < 0) {
6f1c1e71	230	dev_err(&i2c->dev, "failed to add PMIC irq chip: %d\n", ret);
f3937549	231	return ret;
6f1c1e71	232	}
dae8a969	233
1a5422c9 LD	234	ret = devm_mfd_add_devices(max77686->dev, -1, cells, n_devs, NULL,
1a5422c9 LD	235	0, NULL);
742413a4	236	if (ret < 0) {
6f1c1e71	237	dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
1a5422c9	238	return ret;
742413a4	239	}
dae8a969	240
dae8a969 JL	241	return 0;
	242	}
	243
2b52b5d5 JMC	244	#ifdef CONFIG_PM_SLEEP
	245	static int max77686_suspend(struct device *dev)
	246	{
1b5420e1	247	struct i2c_client *i2c = to_i2c_client(dev);
2b52b5d5 JMC	248	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);
	249
	250	if (device_may_wakeup(dev))
	251	enable_irq_wake(max77686->irq);
	252
	253	/*
	254	* IRQ must be disabled during suspend because if it happens
	255	* while suspended it will be handled before resuming I2C.
	256	*
	257	* When device is woken up from suspend (e.g. by RTC wake alarm),
	258	* an interrupt occurs before resuming I2C bus controller.
	259	* Interrupt handler tries to read registers but this read
	260	* will fail because I2C is still suspended.
	261	*/
	262	disable_irq(max77686->irq);
	263
	264	return 0;
	265	}
	266
	267	static int max77686_resume(struct device *dev)
	268	{
1b5420e1	269	struct i2c_client *i2c = to_i2c_client(dev);
2b52b5d5 JMC	270	struct max77686_dev *max77686 = i2c_get_clientdata(i2c);
	271
	272	if (device_may_wakeup(dev))
	273	disable_irq_wake(max77686->irq);
	274
	275	enable_irq(max77686->irq);
	276
	277	return 0;
	278	}
	279	#endif /* CONFIG_PM_SLEEP */
	280
	281	static SIMPLE_DEV_PM_OPS(max77686_pm, max77686_suspend, max77686_resume);
	282
dae8a969 JL	283	static struct i2c_driver max77686_i2c_driver = {
	284	.driver = {
	285	.name = "max77686",
2b52b5d5	286	.pm = &max77686_pm,
c1516f84	287	.of_match_table = of_match_ptr(max77686_pmic_dt_match),
dae8a969	288	},
be1bb235	289	.probe_new = max77686_i2c_probe,
dae8a969 JL	290	};
dae8a969 JL	291
8a0aee4a	292	module_i2c_driver(max77686_i2c_driver);
dae8a969	293
a259f389	294	MODULE_DESCRIPTION("MAXIM 77686/802 multi-function core driver");
dae8a969 JL	295	MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>");
dae8a969 JL	296	MODULE_LICENSE("GPL");