[deliverable/linux.git] / drivers / mfd / sec-core.c

/*
 * sec-core.c
 *
 * Copyright (c) 2012 Samsung Electronics Co., Ltd
 *              http://www.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.
 *
 */

#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/of.h>
#include <linux/of_irq.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/mutex.h>
#include <linux/mfd/core.h>
#include <linux/mfd/samsung/core.h>
#include <linux/mfd/samsung/irq.h>
#include <linux/mfd/samsung/s2mpa01.h>
#include <linux/mfd/samsung/s2mps11.h>
#include <linux/mfd/samsung/s2mps14.h>
#include <linux/mfd/samsung/s5m8763.h>
#include <linux/mfd/samsung/s5m8767.h>
#include <linux/regmap.h>

static const struct mfd_cell s5m8751_devs[] = {
	{
		.name = "s5m8751-pmic",
	}, {
		.name = "s5m-charger",
	}, {
		.name = "s5m8751-codec",
	},
};

static const struct mfd_cell s5m8763_devs[] = {
	{
		.name = "s5m8763-pmic",
	}, {
		.name = "s5m-rtc",
	}, {
		.name = "s5m-charger",
	},
};

static const struct mfd_cell s5m8767_devs[] = {
	{
		.name = "s5m8767-pmic",
	}, {
		.name = "s5m-rtc",
	}, {
		.name = "s5m8767-clk",
		.of_compatible = "samsung,s5m8767-clk",
	}
};

static const struct mfd_cell s2mps11_devs[] = {
	{
		.name = "s2mps11-pmic",
	}, {
		.name = "s2mps11-clk",
		.of_compatible = "samsung,s2mps11-clk",
	}
};

static const struct mfd_cell s2mps14_devs[] = {
	{
		.name = "s2mps14-pmic",
	}, {
		.name = "s2mps14-rtc",
	}, {
		.name = "s2mps14-clk",
		.of_compatible = "samsung,s2mps14-clk",
	}
};

static const struct mfd_cell s2mpa01_devs[] = {
	{
		.name = "s2mpa01-pmic",
	},
};

#ifdef CONFIG_OF
static const struct of_device_id sec_dt_match[] = {
	{	.compatible = "samsung,s5m8767-pmic",
		.data = (void *)S5M8767X,
	}, {
		.compatible = "samsung,s2mps11-pmic",
		.data = (void *)S2MPS11X,
	}, {
		.compatible = "samsung,s2mps14-pmic",
		.data = (void *)S2MPS14X,
	}, {
		.compatible = "samsung,s2mpa01-pmic",
		.data = (void *)S2MPA01,
	}, {
		/* Sentinel */
	},
};
#endif

static bool s2mpa01_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case S2MPA01_REG_INT1M:
	case S2MPA01_REG_INT2M:
	case S2MPA01_REG_INT3M:
		return false;
	default:
		return true;
	}
}

static bool s2mps11_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case S2MPS11_REG_INT1M:
	case S2MPS11_REG_INT2M:
	case S2MPS11_REG_INT3M:
		return false;
	default:
		return true;
	}
}

static bool s5m8763_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case S5M8763_REG_IRQM1:
	case S5M8763_REG_IRQM2:
	case S5M8763_REG_IRQM3:
	case S5M8763_REG_IRQM4:
		return false;
	default:
		return true;
	}
}

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

static const struct regmap_config s2mpa01_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = S2MPA01_REG_LDO_OVCB4,
	.volatile_reg = s2mpa01_volatile,
	.cache_type = REGCACHE_FLAT,
};

static const struct regmap_config s2mps11_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = S2MPS11_REG_L38CTRL,
	.volatile_reg = s2mps11_volatile,
	.cache_type = REGCACHE_FLAT,
};

static const struct regmap_config s2mps14_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = S2MPS14_REG_LDODSCH3,
	.volatile_reg = s2mps11_volatile,
	.cache_type = REGCACHE_FLAT,
};

static const struct regmap_config s5m8763_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = S5M8763_REG_LBCNFG2,
	.volatile_reg = s5m8763_volatile,
	.cache_type = REGCACHE_FLAT,
};

static const struct regmap_config s5m8767_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.max_register = S5M8767_REG_LDO28CTRL,
	.volatile_reg = s2mps11_volatile,
	.cache_type = REGCACHE_FLAT,
};

#ifdef CONFIG_OF
/*
 * Only the common platform data elements for s5m8767 are parsed here from the
 * device tree. Other sub-modules of s5m8767 such as pmic, rtc , charger and
 * others have to parse their own platform data elements from device tree.
 *
 * The s5m8767 platform data structure is instantiated here and the drivers for
 * the sub-modules need not instantiate another instance while parsing their
 * platform data.
 */
static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata(
					struct device *dev)
{
	struct sec_platform_data *pd;

	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
	if (!pd) {
		dev_err(dev, "could not allocate memory for pdata\n");
		return ERR_PTR(-ENOMEM);
	}

	/*
	 * ToDo: the 'wakeup' member in the platform data is more of a linux
	 * specfic information. Hence, there is no binding for that yet and
	 * not parsed here.
	 */

	return pd;
}
#else
static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata(
					struct device *dev)
{
	return NULL;
}
#endif

static inline unsigned long sec_i2c_get_driver_data(struct i2c_client *i2c,
						const struct i2c_device_id *id)
{
#ifdef CONFIG_OF
	if (i2c->dev.of_node) {
		const struct of_device_id *match;
		match = of_match_node(sec_dt_match, i2c->dev.of_node);
		return (unsigned long)match->data;
	}
#endif
	return id->driver_data;
}

static int sec_pmic_probe(struct i2c_client *i2c,
			    const struct i2c_device_id *id)
{
	struct sec_platform_data *pdata = dev_get_platdata(&i2c->dev);
	const struct regmap_config *regmap;
	struct sec_pmic_dev *sec_pmic;
	unsigned long device_type;
	int ret;

	sec_pmic = devm_kzalloc(&i2c->dev, sizeof(struct sec_pmic_dev),
				GFP_KERNEL);
	if (sec_pmic == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, sec_pmic);
	sec_pmic->dev = &i2c->dev;
	sec_pmic->i2c = i2c;
	sec_pmic->irq = i2c->irq;
	device_type = sec_i2c_get_driver_data(i2c, id);

	if (sec_pmic->dev->of_node) {
		pdata = sec_pmic_i2c_parse_dt_pdata(sec_pmic->dev);
		if (IS_ERR(pdata)) {
			ret = PTR_ERR(pdata);
			return ret;
		}
		pdata->device_type = device_type;
	}
	if (pdata) {
		sec_pmic->device_type = pdata->device_type;
		sec_pmic->ono = pdata->ono;
		sec_pmic->irq_base = pdata->irq_base;
		sec_pmic->wakeup = pdata->wakeup;
		sec_pmic->pdata = pdata;
	}

	switch (sec_pmic->device_type) {
	case S2MPA01:
		regmap = &s2mpa01_regmap_config;
		break;
	case S2MPS11X:
		regmap = &s2mps11_regmap_config;
		break;
	case S2MPS14X:
		regmap = &s2mps14_regmap_config;
		break;
	case S5M8763X:
		regmap = &s5m8763_regmap_config;
		break;
	case S5M8767X:
		regmap = &s5m8767_regmap_config;
		break;
	default:
		regmap = &sec_regmap_config;
		break;
	}

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

	if (pdata && pdata->cfg_pmic_irq)
		pdata->cfg_pmic_irq();

	sec_irq_init(sec_pmic);

	pm_runtime_set_active(sec_pmic->dev);

	switch (sec_pmic->device_type) {
	case S5M8751X:
		ret = mfd_add_devices(sec_pmic->dev, -1, s5m8751_devs,
				      ARRAY_SIZE(s5m8751_devs), NULL, 0, NULL);
		break;
	case S5M8763X:
		ret = mfd_add_devices(sec_pmic->dev, -1, s5m8763_devs,
				      ARRAY_SIZE(s5m8763_devs), NULL, 0, NULL);
		break;
	case S5M8767X:
		ret = mfd_add_devices(sec_pmic->dev, -1, s5m8767_devs,
				      ARRAY_SIZE(s5m8767_devs), NULL, 0, NULL);
		break;
	case S2MPA01:
		ret = mfd_add_devices(sec_pmic->dev, -1, s2mpa01_devs,
				      ARRAY_SIZE(s2mpa01_devs), NULL, 0, NULL);
		break;
	case S2MPS11X:
		ret = mfd_add_devices(sec_pmic->dev, -1, s2mps11_devs,
				      ARRAY_SIZE(s2mps11_devs), NULL, 0, NULL);
		break;
	case S2MPS14X:
		ret = mfd_add_devices(sec_pmic->dev, -1, s2mps14_devs,
				      ARRAY_SIZE(s2mps14_devs), NULL, 0, NULL);
		break;
	default:
		/* If this happens the probe function is problem */
		BUG();
	}

	if (ret)
		goto err_mfd;

	device_init_wakeup(sec_pmic->dev, sec_pmic->wakeup);

	return ret;

err_mfd:
	sec_irq_exit(sec_pmic);
	return ret;
}

static int sec_pmic_remove(struct i2c_client *i2c)
{
	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);

	mfd_remove_devices(sec_pmic->dev);
	sec_irq_exit(sec_pmic);
	return 0;
}

#ifdef CONFIG_PM_SLEEP
static int sec_pmic_suspend(struct device *dev)
{
	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);

	if (device_may_wakeup(dev))
		enable_irq_wake(sec_pmic->irq);
	/*
	 * PMIC IRQ must be disabled during suspend for RTC alarm
	 * to work properly.
	 * When device is woken up from suspend, an
	 * interrupt occurs before resuming I2C bus controller.
	 * The interrupt is handled by regmap_irq_thread which tries
	 * to read RTC registers. This read fails (I2C is still
	 * suspended) and RTC Alarm interrupt is disabled.
	 */
	disable_irq(sec_pmic->irq);

	return 0;
}

static int sec_pmic_resume(struct device *dev)
{
	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);

	if (device_may_wakeup(dev))
		disable_irq_wake(sec_pmic->irq);
	enable_irq(sec_pmic->irq);

	return 0;
}
#endif /* CONFIG_PM_SLEEP */

static SIMPLE_DEV_PM_OPS(sec_pmic_pm_ops, sec_pmic_suspend, sec_pmic_resume);

static const struct i2c_device_id sec_pmic_id[] = {
	{ "sec_pmic", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, sec_pmic_id);

static struct i2c_driver sec_pmic_driver = {
	.driver = {
		   .name = "sec_pmic",
		   .owner = THIS_MODULE,
		   .pm = &sec_pmic_pm_ops,
		   .of_match_table = of_match_ptr(sec_dt_match),
	},
	.probe = sec_pmic_probe,
	.remove = sec_pmic_remove,
	.id_table = sec_pmic_id,
};

static int __init sec_pmic_init(void)
{
	return i2c_add_driver(&sec_pmic_driver);
}

subsys_initcall(sec_pmic_init);

static void __exit sec_pmic_exit(void)
{
	i2c_del_driver(&sec_pmic_driver);
}
module_exit(sec_pmic_exit);

MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
MODULE_DESCRIPTION("Core support for the S5M MFD");
MODULE_LICENSE("GPL");
Commit	Line	Data
0f5f7078	1	/*
63063bfb	2	* sec-core.c
0f5f7078	3	*
63063bfb	4	* Copyright (c) 2012 Samsung Electronics Co., Ltd
0f5f7078 SK	5	* http://www.samsung.com
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2 of the License, or (at your
	10	* option) any later version.
	11	*
	12	*/
	13
	14	#include <linux/module.h>
	15	#include <linux/moduleparam.h>
	16	#include <linux/init.h>
	17	#include <linux/err.h>
	18	#include <linux/slab.h>
	19	#include <linux/i2c.h>
1c5a099b	20	#include <linux/of.h>
26aec009	21	#include <linux/of_irq.h>
0f5f7078 SK	22	#include <linux/interrupt.h>
	23	#include <linux/pm_runtime.h>
	24	#include <linux/mutex.h>
	25	#include <linux/mfd/core.h>
54227bcf SK	26	#include <linux/mfd/samsung/core.h>
54227bcf SK	27	#include <linux/mfd/samsung/irq.h>
ce24991e	28	#include <linux/mfd/samsung/s2mpa01.h>
25f311fa	29	#include <linux/mfd/samsung/s2mps11.h>
dc691966	30	#include <linux/mfd/samsung/s2mps14.h>
25f311fa MB	31	#include <linux/mfd/samsung/s5m8763.h>
25f311fa MB	32	#include <linux/mfd/samsung/s5m8767.h>
0f5f7078 SK	33	#include <linux/regmap.h>
0f5f7078 SK	34
5ac98553	35	static const struct mfd_cell s5m8751_devs[] = {
88a1cfd6 SK	36	{
	37	.name = "s5m8751-pmic",
	38	}, {
	39	.name = "s5m-charger",
	40	}, {
	41	.name = "s5m8751-codec",
	42	},
	43	};
	44
5ac98553	45	static const struct mfd_cell s5m8763_devs[] = {
88a1cfd6 SK	46	{
	47	.name = "s5m8763-pmic",
	48	}, {
	49	.name = "s5m-rtc",
	50	}, {
	51	.name = "s5m-charger",
	52	},
	53	};
	54
5ac98553	55	static const struct mfd_cell s5m8767_devs[] = {
0f5f7078 SK	56	{
	57	.name = "s5m8767-pmic",
	58	}, {
	59	.name = "s5m-rtc",
39fed00f TB	60	}, {
39fed00f TB	61	.name = "s5m8767-clk",
53c31b34	62	.of_compatible = "samsung,s5m8767-clk",
39fed00f	63	}
0f5f7078 SK	64	};
0f5f7078 SK	65
5ac98553	66	static const struct mfd_cell s2mps11_devs[] = {
9b6d1343 SK	67	{
9b6d1343 SK	68	.name = "s2mps11-pmic",
3134bcae YSB	69	}, {
3134bcae YSB	70	.name = "s2mps11-clk",
53c31b34	71	.of_compatible = "samsung,s2mps11-clk",
3134bcae	72	}
9b6d1343 SK	73	};
9b6d1343 SK	74
dc691966 KK	75	static const struct mfd_cell s2mps14_devs[] = {
	76	{
	77	.name = "s2mps14-pmic",
	78	}, {
	79	.name = "s2mps14-rtc",
	80	}, {
	81	.name = "s2mps14-clk",
53c31b34	82	.of_compatible = "samsung,s2mps14-clk",
dc691966 KK	83	}
	84	};
	85
ce24991e SK	86	static const struct mfd_cell s2mpa01_devs[] = {
	87	{
	88	.name = "s2mpa01-pmic",
	89	},
	90	};
	91
26aec009	92	#ifdef CONFIG_OF
df20b7c5	93	static const struct of_device_id sec_dt_match[] = {
26aec009 ADK	94	{ .compatible = "samsung,s5m8767-pmic",
26aec009 ADK	95	.data = (void *)S5M8767X,
ce24991e SK	96	}, {
ce24991e SK	97	.compatible = "samsung,s2mps11-pmic",
aa32acad	98	.data = (void *)S2MPS11X,
ce24991e SK	99	}, {
ce24991e SK	100	.compatible = "samsung,s2mps14-pmic",
dc691966	101	.data = (void *)S2MPS14X,
ce24991e SK	102	}, {
	103	.compatible = "samsung,s2mpa01-pmic",
	104	.data = (void *)S2MPA01,
	105	}, {
	106	/* Sentinel */
dc691966	107	},
26aec009 ADK	108	};
	109	#endif
	110
ce24991e SK	111	static bool s2mpa01_volatile(struct device *dev, unsigned int reg)
	112	{
	113	switch (reg) {
	114	case S2MPA01_REG_INT1M:
	115	case S2MPA01_REG_INT2M:
	116	case S2MPA01_REG_INT3M:
	117	return false;
	118	default:
	119	return true;
	120	}
	121	}
	122
6b845ba9 MB	123	static bool s2mps11_volatile(struct device *dev, unsigned int reg)
	124	{
	125	switch (reg) {
	126	case S2MPS11_REG_INT1M:
	127	case S2MPS11_REG_INT2M:
	128	case S2MPS11_REG_INT3M:
	129	return false;
	130	default:
	131	return true;
	132	}
	133	}
	134
	135	static bool s5m8763_volatile(struct device *dev, unsigned int reg)
	136	{
	137	switch (reg) {
	138	case S5M8763_REG_IRQM1:
	139	case S5M8763_REG_IRQM2:
	140	case S5M8763_REG_IRQM3:
	141	case S5M8763_REG_IRQM4:
	142	return false;
	143	default:
	144	return true;
	145	}
	146	}
	147
a30fffb0	148	static const struct regmap_config sec_regmap_config = {
0f5f7078 SK	149	.reg_bits = 8,
	150	.val_bits = 8,
	151	};
	152
ce24991e SK	153	static const struct regmap_config s2mpa01_regmap_config = {
	154	.reg_bits = 8,
	155	.val_bits = 8,
	156
	157	.max_register = S2MPA01_REG_LDO_OVCB4,
	158	.volatile_reg = s2mpa01_volatile,
	159	.cache_type = REGCACHE_FLAT,
	160	};
	161
a30fffb0	162	static const struct regmap_config s2mps11_regmap_config = {
25f311fa MB	163	.reg_bits = 8,
	164	.val_bits = 8,
	165
	166	.max_register = S2MPS11_REG_L38CTRL,
6b845ba9 MB	167	.volatile_reg = s2mps11_volatile,
6b845ba9 MB	168	.cache_type = REGCACHE_FLAT,
25f311fa MB	169	};
25f311fa MB	170
dc691966 KK	171	static const struct regmap_config s2mps14_regmap_config = {
	172	.reg_bits = 8,
	173	.val_bits = 8,
	174
	175	.max_register = S2MPS14_REG_LDODSCH3,
	176	.volatile_reg = s2mps11_volatile,
	177	.cache_type = REGCACHE_FLAT,
	178	};
	179
a30fffb0	180	static const struct regmap_config s5m8763_regmap_config = {
25f311fa MB	181	.reg_bits = 8,
	182	.val_bits = 8,
	183
	184	.max_register = S5M8763_REG_LBCNFG2,
6b845ba9 MB	185	.volatile_reg = s5m8763_volatile,
6b845ba9 MB	186	.cache_type = REGCACHE_FLAT,
25f311fa MB	187	};
25f311fa MB	188
a30fffb0	189	static const struct regmap_config s5m8767_regmap_config = {
25f311fa MB	190	.reg_bits = 8,
	191	.val_bits = 8,
	192
	193	.max_register = S5M8767_REG_LDO28CTRL,
6b845ba9 MB	194	.volatile_reg = s2mps11_volatile,
6b845ba9 MB	195	.cache_type = REGCACHE_FLAT,
25f311fa	196	};
26aec009 ADK	197
	198	#ifdef CONFIG_OF
	199	/*
	200	* Only the common platform data elements for s5m8767 are parsed here from the
	201	* device tree. Other sub-modules of s5m8767 such as pmic, rtc , charger and
	202	* others have to parse their own platform data elements from device tree.
	203	*
	204	* The s5m8767 platform data structure is instantiated here and the drivers for
	205	* the sub-modules need not instantiate another instance while parsing their
	206	* platform data.
	207	*/
	208	static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata(
	209	struct device *dev)
	210	{
	211	struct sec_platform_data *pd;
	212
	213	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
	214	if (!pd) {
	215	dev_err(dev, "could not allocate memory for pdata\n");
	216	return ERR_PTR(-ENOMEM);
	217	}
	218
	219	/*
	220	* ToDo: the 'wakeup' member in the platform data is more of a linux
	221	* specfic information. Hence, there is no binding for that yet and
	222	* not parsed here.
	223	*/
	224
	225	return pd;
	226	}
	227	#else
197bf856	228	static struct sec_platform_data *sec_pmic_i2c_parse_dt_pdata(
26aec009 ADK	229	struct device *dev)
26aec009 ADK	230	{
005718c0	231	return NULL;
26aec009 ADK	232	}
	233	#endif
	234
8f695de5	235	static inline unsigned long sec_i2c_get_driver_data(struct i2c_client *i2c,
26aec009 ADK	236	const struct i2c_device_id *id)
	237	{
	238	#ifdef CONFIG_OF
	239	if (i2c->dev.of_node) {
	240	const struct of_device_id *match;
	241	match = of_match_node(sec_dt_match, i2c->dev.of_node);
8f695de5	242	return (unsigned long)match->data;
26aec009 ADK	243	}
26aec009 ADK	244	#endif
8f695de5	245	return id->driver_data;
26aec009 ADK	246	}
26aec009 ADK	247
63063bfb	248	static int sec_pmic_probe(struct i2c_client *i2c,
0f5f7078 SK	249	const struct i2c_device_id *id)
0f5f7078 SK	250	{
334a41ce	251	struct sec_platform_data *pdata = dev_get_platdata(&i2c->dev);
e349c910	252	const struct regmap_config *regmap;
63063bfb	253	struct sec_pmic_dev *sec_pmic;
9549b5ff	254	unsigned long device_type;
61a2af30	255	int ret;
0f5f7078	256
63063bfb	257	sec_pmic = devm_kzalloc(&i2c->dev, sizeof(struct sec_pmic_dev),
621210e2	258	GFP_KERNEL);
63063bfb	259	if (sec_pmic == NULL)
0f5f7078 SK	260	return -ENOMEM;
0f5f7078 SK	261
63063bfb SK	262	i2c_set_clientdata(i2c, sec_pmic);
	263	sec_pmic->dev = &i2c->dev;
	264	sec_pmic->i2c = i2c;
	265	sec_pmic->irq = i2c->irq;
9549b5ff	266	device_type = sec_i2c_get_driver_data(i2c, id);
26aec009 ADK	267
	268	if (sec_pmic->dev->of_node) {
	269	pdata = sec_pmic_i2c_parse_dt_pdata(sec_pmic->dev);
	270	if (IS_ERR(pdata)) {
	271	ret = PTR_ERR(pdata);
	272	return ret;
	273	}
9549b5ff	274	pdata->device_type = device_type;
26aec009	275	}
0f5f7078	276	if (pdata) {
63063bfb SK	277	sec_pmic->device_type = pdata->device_type;
	278	sec_pmic->ono = pdata->ono;
	279	sec_pmic->irq_base = pdata->irq_base;
	280	sec_pmic->wakeup = pdata->wakeup;
26aec009	281	sec_pmic->pdata = pdata;
0f5f7078 SK	282	}
0f5f7078 SK	283
25f311fa	284	switch (sec_pmic->device_type) {
ce24991e SK	285	case S2MPA01:
	286	regmap = &s2mpa01_regmap_config;
	287	break;
25f311fa MB	288	case S2MPS11X:
25f311fa MB	289	regmap = &s2mps11_regmap_config;
dc691966 KK	290	break;
	291	case S2MPS14X:
	292	regmap = &s2mps14_regmap_config;
25f311fa MB	293	break;
	294	case S5M8763X:
	295	regmap = &s5m8763_regmap_config;
	296	break;
	297	case S5M8767X:
	298	regmap = &s5m8767_regmap_config;
	299	break;
	300	default:
	301	regmap = &sec_regmap_config;
	302	break;
	303	}
	304
3e1e4a5f KK	305	sec_pmic->regmap_pmic = devm_regmap_init_i2c(i2c, regmap);
	306	if (IS_ERR(sec_pmic->regmap_pmic)) {
	307	ret = PTR_ERR(sec_pmic->regmap_pmic);
0f5f7078	308	dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
61a2af30	309	ret);
1092e1c7	310	return ret;
0f5f7078 SK	311	}
0f5f7078 SK	312
c3ebb30a	313	if (pdata && pdata->cfg_pmic_irq)
0f5f7078 SK	314	pdata->cfg_pmic_irq();
0f5f7078 SK	315
63063bfb	316	sec_irq_init(sec_pmic);
0f5f7078	317
63063bfb	318	pm_runtime_set_active(sec_pmic->dev);
0f5f7078	319
63063bfb	320	switch (sec_pmic->device_type) {
88a1cfd6	321	case S5M8751X:
63063bfb	322	ret = mfd_add_devices(sec_pmic->dev, -1, s5m8751_devs,
0848c94f	323	ARRAY_SIZE(s5m8751_devs), NULL, 0, NULL);
88a1cfd6 SK	324	break;
88a1cfd6 SK	325	case S5M8763X:
63063bfb	326	ret = mfd_add_devices(sec_pmic->dev, -1, s5m8763_devs,
0848c94f	327	ARRAY_SIZE(s5m8763_devs), NULL, 0, NULL);
88a1cfd6 SK	328	break;
88a1cfd6 SK	329	case S5M8767X:
63063bfb	330	ret = mfd_add_devices(sec_pmic->dev, -1, s5m8767_devs,
0848c94f	331	ARRAY_SIZE(s5m8767_devs), NULL, 0, NULL);
88a1cfd6	332	break;
ce24991e SK	333	case S2MPA01:
	334	ret = mfd_add_devices(sec_pmic->dev, -1, s2mpa01_devs,
	335	ARRAY_SIZE(s2mpa01_devs), NULL, 0, NULL);
	336	break;
9b6d1343 SK	337	case S2MPS11X:
9b6d1343 SK	338	ret = mfd_add_devices(sec_pmic->dev, -1, s2mps11_devs,
0848c94f	339	ARRAY_SIZE(s2mps11_devs), NULL, 0, NULL);
9b6d1343	340	break;
dc691966 KK	341	case S2MPS14X:
	342	ret = mfd_add_devices(sec_pmic->dev, -1, s2mps14_devs,
	343	ARRAY_SIZE(s2mps14_devs), NULL, 0, NULL);
	344	break;
88a1cfd6 SK	345	default:
	346	/* If this happens the probe function is problem */
	347	BUG();
	348	}
0f5f7078	349
15447a46	350	if (ret)
8c66eece	351	goto err_mfd;
0f5f7078	352
f6d6daaf KK	353	device_init_wakeup(sec_pmic->dev, sec_pmic->wakeup);
f6d6daaf KK	354
0f5f7078 SK	355	return ret;
0f5f7078 SK	356
8c66eece	357	err_mfd:
63063bfb	358	sec_irq_exit(sec_pmic);
0f5f7078 SK	359	return ret;
	360	}
	361
63063bfb	362	static int sec_pmic_remove(struct i2c_client *i2c)
0f5f7078	363	{
63063bfb	364	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
0f5f7078	365
63063bfb SK	366	mfd_remove_devices(sec_pmic->dev);
63063bfb SK	367	sec_irq_exit(sec_pmic);
0f5f7078 SK	368	return 0;
	369	}
	370
8321bbf8	371	#ifdef CONFIG_PM_SLEEP
f6d6daaf KK	372	static int sec_pmic_suspend(struct device *dev)
	373	{
	374	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
	375	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
	376
360d15d6	377	if (device_may_wakeup(dev))
f6d6daaf	378	enable_irq_wake(sec_pmic->irq);
360d15d6 KK	379	/*
	380	* PMIC IRQ must be disabled during suspend for RTC alarm
	381	* to work properly.
	382	* When device is woken up from suspend, an
	383	* interrupt occurs before resuming I2C bus controller.
	384	* The interrupt is handled by regmap_irq_thread which tries
	385	* to read RTC registers. This read fails (I2C is still
	386	* suspended) and RTC Alarm interrupt is disabled.
	387	*/
	388	disable_irq(sec_pmic->irq);
f6d6daaf KK	389
	390	return 0;
	391	}
	392
	393	static int sec_pmic_resume(struct device *dev)
	394	{
	395	struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
	396	struct sec_pmic_dev *sec_pmic = i2c_get_clientdata(i2c);
	397
360d15d6	398	if (device_may_wakeup(dev))
f6d6daaf	399	disable_irq_wake(sec_pmic->irq);
360d15d6	400	enable_irq(sec_pmic->irq);
f6d6daaf KK	401
	402	return 0;
	403	}
8321bbf8	404	#endif /* CONFIG_PM_SLEEP */
f6d6daaf KK	405
	406	static SIMPLE_DEV_PM_OPS(sec_pmic_pm_ops, sec_pmic_suspend, sec_pmic_resume);
	407
63063bfb SK	408	static const struct i2c_device_id sec_pmic_id[] = {
63063bfb SK	409	{ "sec_pmic", 0 },
0f5f7078 SK	410	{ }
0f5f7078 SK	411	};
63063bfb	412	MODULE_DEVICE_TABLE(i2c, sec_pmic_id);
0f5f7078	413
63063bfb	414	static struct i2c_driver sec_pmic_driver = {
0f5f7078	415	.driver = {
63063bfb	416	.name = "sec_pmic",
0f5f7078	417	.owner = THIS_MODULE,
f6d6daaf	418	.pm = &sec_pmic_pm_ops,
26aec009	419	.of_match_table = of_match_ptr(sec_dt_match),
0f5f7078	420	},
63063bfb SK	421	.probe = sec_pmic_probe,
	422	.remove = sec_pmic_remove,
	423	.id_table = sec_pmic_id,
0f5f7078 SK	424	};
0f5f7078 SK	425
63063bfb	426	static int __init sec_pmic_init(void)
0f5f7078	427	{
63063bfb	428	return i2c_add_driver(&sec_pmic_driver);
0f5f7078 SK	429	}
0f5f7078 SK	430
63063bfb	431	subsys_initcall(sec_pmic_init);
0f5f7078	432
63063bfb	433	static void __exit sec_pmic_exit(void)
0f5f7078	434	{
63063bfb	435	i2c_del_driver(&sec_pmic_driver);
0f5f7078	436	}
63063bfb	437	module_exit(sec_pmic_exit);
0f5f7078 SK	438
	439	MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
	440	MODULE_DESCRIPTION("Core support for the S5M MFD");
	441	MODULE_LICENSE("GPL");