[mirror_ubuntu-bionic-kernel.git] / drivers / mfd / max77693.c

/*
 * max77693.c - mfd core driver for the MAX 77693
 *
 * Copyright (C) 2012 Samsung Electronics
 * SangYoung Son <hello.son@samsung.com>
 *
 * This program is not provided / owned by Maxim Integrated Products.
 *
 * 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/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/pm_runtime.h>
#include <linux/mutex.h>
#include <linux/mfd/core.h>
#include <linux/mfd/max77693.h>
#include <linux/mfd/max77693-common.h>
#include <linux/mfd/max77693-private.h>
#include <linux/regulator/machine.h>
#include <linux/regmap.h>

#define I2C_ADDR_PMIC	(0xCC >> 1)	/* Charger, Flash LED */
#define I2C_ADDR_MUIC	(0x4A >> 1)
#define I2C_ADDR_HAPTIC	(0x90 >> 1)

static const struct mfd_cell max77693_devs[] = {
	{ .name = "max77693-pmic", },
	{
		.name = "max77693-charger",
		.of_compatible = "maxim,max77693-charger",
	},
	{
		.name = "max77693-muic",
		.of_compatible = "maxim,max77693-muic",
	},
	{
		.name = "max77693-haptic",
		.of_compatible = "maxim,max77693-haptic",
	},
	{
		.name = "max77693-led",
		.of_compatible = "maxim,max77693-led",
	},
};

static const struct regmap_config max77693_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.max_register = MAX77693_PMIC_REG_END,
};

static const struct regmap_irq max77693_led_irqs[] = {
	{ .mask = LED_IRQ_FLED2_OPEN,  },
	{ .mask = LED_IRQ_FLED2_SHORT, },
	{ .mask = LED_IRQ_FLED1_OPEN,  },
	{ .mask = LED_IRQ_FLED1_SHORT, },
	{ .mask = LED_IRQ_MAX_FLASH,   },
};

static const struct regmap_irq_chip max77693_led_irq_chip = {
	.name			= "max77693-led",
	.status_base		= MAX77693_LED_REG_FLASH_INT,
	.mask_base		= MAX77693_LED_REG_FLASH_INT_MASK,
	.mask_invert		= false,
	.num_regs		= 1,
	.irqs			= max77693_led_irqs,
	.num_irqs		= ARRAY_SIZE(max77693_led_irqs),
};

static const struct regmap_irq max77693_topsys_irqs[] = {
	{ .mask = TOPSYS_IRQ_T120C_INT,  },
	{ .mask = TOPSYS_IRQ_T140C_INT,  },
	{ .mask = TOPSYS_IRQ_LOWSYS_INT, },
};

static const struct regmap_irq_chip max77693_topsys_irq_chip = {
	.name			= "max77693-topsys",
	.status_base		= MAX77693_PMIC_REG_TOPSYS_INT,
	.mask_base		= MAX77693_PMIC_REG_TOPSYS_INT_MASK,
	.mask_invert		= false,
	.num_regs		= 1,
	.irqs			= max77693_topsys_irqs,
	.num_irqs		= ARRAY_SIZE(max77693_topsys_irqs),
};

static const struct regmap_irq max77693_charger_irqs[] = {
	{ .mask = CHG_IRQ_BYP_I,   },
	{ .mask = CHG_IRQ_THM_I,   },
	{ .mask = CHG_IRQ_BAT_I,   },
	{ .mask = CHG_IRQ_CHG_I,   },
	{ .mask = CHG_IRQ_CHGIN_I, },
};

static const struct regmap_irq_chip max77693_charger_irq_chip = {
	.name			= "max77693-charger",
	.status_base		= MAX77693_CHG_REG_CHG_INT,
	.mask_base		= MAX77693_CHG_REG_CHG_INT_MASK,
	.mask_invert		= false,
	.num_regs		= 1,
	.irqs			= max77693_charger_irqs,
	.num_irqs		= ARRAY_SIZE(max77693_charger_irqs),
};

static const struct regmap_config max77693_regmap_muic_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.max_register = MAX77693_MUIC_REG_END,
};

static const struct regmap_irq max77693_muic_irqs[] = {
	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC,		},
	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_LOW,	},
	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_ERR,	},
	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC1K,		},

	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGTYP,	},
	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGDETREUN,	},
	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_DCDTMR,	},
	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_DXOVP,		},
	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_VBVOLT,	},
	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_VIDRM,		},

	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_EOC,		},
	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_CGMBC,		},
	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_OVP,		},
	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_MBCCHG_ERR,	},
	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_CHG_ENABLED,	},
	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_BAT_DET,	},
};

static const struct regmap_irq_chip max77693_muic_irq_chip = {
	.name			= "max77693-muic",
	.status_base		= MAX77693_MUIC_REG_INT1,
	.mask_base		= MAX77693_MUIC_REG_INTMASK1,
	.mask_invert		= true,
	.num_regs		= 3,
	.irqs			= max77693_muic_irqs,
	.num_irqs		= ARRAY_SIZE(max77693_muic_irqs),
};

static const struct regmap_config max77693_regmap_haptic_config = {
	.reg_bits = 8,
	.val_bits = 8,
	.max_register = MAX77693_HAPTIC_REG_END,
};

static int max77693_i2c_probe(struct i2c_client *i2c,
			      const struct i2c_device_id *id)
{
	struct max77693_dev *max77693;
	unsigned int reg_data;
	int ret = 0;

	max77693 = devm_kzalloc(&i2c->dev,
			sizeof(struct max77693_dev), GFP_KERNEL);
	if (max77693 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, max77693);
	max77693->dev = &i2c->dev;
	max77693->i2c = i2c;
	max77693->irq = i2c->irq;
	max77693->type = id->driver_data;

	max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config);
	if (IS_ERR(max77693->regmap)) {
		ret = PTR_ERR(max77693->regmap);
		dev_err(max77693->dev, "failed to allocate register map: %d\n",
				ret);
		return ret;
	}

	ret = regmap_read(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2,
				&reg_data);
	if (ret < 0) {
		dev_err(max77693->dev, "device not found on this channel\n");
		return ret;
	} else
		dev_info(max77693->dev, "device ID: 0x%x\n", reg_data);

	max77693->i2c_muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
	if (!max77693->i2c_muic) {
		dev_err(max77693->dev, "Failed to allocate I2C device for MUIC\n");
		return -ENODEV;
	}
	i2c_set_clientdata(max77693->i2c_muic, max77693);

	max77693->i2c_haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
	if (!max77693->i2c_haptic) {
		dev_err(max77693->dev, "Failed to allocate I2C device for Haptic\n");
		ret = -ENODEV;
		goto err_i2c_haptic;
	}
	i2c_set_clientdata(max77693->i2c_haptic, max77693);

	max77693->regmap_haptic = devm_regmap_init_i2c(max77693->i2c_haptic,
					&max77693_regmap_haptic_config);
	if (IS_ERR(max77693->regmap_haptic)) {
		ret = PTR_ERR(max77693->regmap_haptic);
		dev_err(max77693->dev,
			"failed to initialize haptic register map: %d\n", ret);
		goto err_regmap;
	}

	/*
	 * Initialize register map for MUIC device because use regmap-muic
	 * instance of MUIC device when irq of max77693 is initialized
	 * before call max77693-muic probe() function.
	 */
	max77693->regmap_muic = devm_regmap_init_i2c(max77693->i2c_muic,
					 &max77693_regmap_muic_config);
	if (IS_ERR(max77693->regmap_muic)) {
		ret = PTR_ERR(max77693->regmap_muic);
		dev_err(max77693->dev,
			"failed to allocate register map: %d\n", ret);
		goto err_regmap;
	}

	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
				IRQF_ONESHOT | IRQF_SHARED |
				IRQF_TRIGGER_FALLING, 0,
				&max77693_led_irq_chip,
				&max77693->irq_data_led);
	if (ret) {
		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
		goto err_regmap;
	}

	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
				IRQF_ONESHOT | IRQF_SHARED |
				IRQF_TRIGGER_FALLING, 0,
				&max77693_topsys_irq_chip,
				&max77693->irq_data_topsys);
	if (ret) {
		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
		goto err_irq_topsys;
	}

	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
				IRQF_ONESHOT | IRQF_SHARED |
				IRQF_TRIGGER_FALLING, 0,
				&max77693_charger_irq_chip,
				&max77693->irq_data_chg);
	if (ret) {
		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
		goto err_irq_charger;
	}

	ret = regmap_add_irq_chip(max77693->regmap_muic, max77693->irq,
				IRQF_ONESHOT | IRQF_SHARED |
				IRQF_TRIGGER_FALLING, 0,
				&max77693_muic_irq_chip,
				&max77693->irq_data_muic);
	if (ret) {
		dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
		goto err_irq_muic;
	}

	/* Unmask interrupts from all blocks in interrupt source register */
	ret = regmap_update_bits(max77693->regmap,
				MAX77693_PMIC_REG_INTSRC_MASK,
				SRC_IRQ_ALL, (unsigned int)~SRC_IRQ_ALL);
	if (ret < 0) {
		dev_err(max77693->dev,
			"Could not unmask interrupts in INTSRC: %d\n",
			ret);
		goto err_intsrc;
	}

	pm_runtime_set_active(max77693->dev);

	ret = mfd_add_devices(max77693->dev, -1, max77693_devs,
			      ARRAY_SIZE(max77693_devs), NULL, 0, NULL);
	if (ret < 0)
		goto err_mfd;

	return ret;

err_mfd:
	mfd_remove_devices(max77693->dev);
err_intsrc:
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic);
err_irq_muic:
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg);
err_irq_charger:
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
err_irq_topsys:
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);
err_regmap:
	i2c_unregister_device(max77693->i2c_haptic);
err_i2c_haptic:
	i2c_unregister_device(max77693->i2c_muic);
	return ret;
}

static int max77693_i2c_remove(struct i2c_client *i2c)
{
	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);

	mfd_remove_devices(max77693->dev);

	regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic);
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg);
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);

	i2c_unregister_device(max77693->i2c_muic);
	i2c_unregister_device(max77693->i2c_haptic);

	return 0;
}

static const struct i2c_device_id max77693_i2c_id[] = {
	{ "max77693", TYPE_MAX77693 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, max77693_i2c_id);

static int max77693_suspend(struct device *dev)
{
	struct i2c_client *i2c = to_i2c_client(dev);
	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);

	if (device_may_wakeup(dev)) {
		enable_irq_wake(max77693->irq);
		disable_irq(max77693->irq);
	}

	return 0;
}

static int max77693_resume(struct device *dev)
{
	struct i2c_client *i2c = to_i2c_client(dev);
	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);

	if (device_may_wakeup(dev)) {
		disable_irq_wake(max77693->irq);
		enable_irq(max77693->irq);
	}

	return 0;
}

static const struct dev_pm_ops max77693_pm = {
	.suspend = max77693_suspend,
	.resume = max77693_resume,
};

#ifdef CONFIG_OF
static const struct of_device_id max77693_dt_match[] = {
	{ .compatible = "maxim,max77693" },
	{},
};
MODULE_DEVICE_TABLE(of, max77693_dt_match);
#endif

static struct i2c_driver max77693_i2c_driver = {
	.driver = {
		   .name = "max77693",
		   .pm = &max77693_pm,
		   .of_match_table = of_match_ptr(max77693_dt_match),
	},
	.probe = max77693_i2c_probe,
	.remove = max77693_i2c_remove,
	.id_table = max77693_i2c_id,
};

module_i2c_driver(max77693_i2c_driver);

MODULE_DESCRIPTION("MAXIM 77693 multi-function core driver");
MODULE_AUTHOR("SangYoung, Son <hello.son@samsung.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
83871c00 CC	1	/*
	2	* max77693.c - mfd core driver for the MAX 77693
	3	*
	4	* Copyright (C) 2012 Samsung Electronics
630fd98c	5	* SangYoung Son <hello.son@samsung.com>
83871c00 CC	6	*
	7	* This program is not provided / owned by Maxim Integrated Products.
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	22	*
	23	* This driver is based on max8997.c
	24	*/
	25
	26	#include <linux/module.h>
	27	#include <linux/slab.h>
	28	#include <linux/i2c.h>
	29	#include <linux/err.h>
	30	#include <linux/interrupt.h>
71c7f93e	31	#include <linux/of.h>
83871c00 CC	32	#include <linux/pm_runtime.h>
	33	#include <linux/mutex.h>
	34	#include <linux/mfd/core.h>
	35	#include <linux/mfd/max77693.h>
61b305cd	36	#include <linux/mfd/max77693-common.h>
83871c00 CC	37	#include <linux/mfd/max77693-private.h>
	38	#include <linux/regulator/machine.h>
	39	#include <linux/regmap.h>
	40
	41	#define I2C_ADDR_PMIC (0xCC >> 1) /* Charger, Flash LED */
	42	#define I2C_ADDR_MUIC (0x4A >> 1)
	43	#define I2C_ADDR_HAPTIC (0x90 >> 1)
	44
7c0517b1	45	static const struct mfd_cell max77693_devs[] = {
83871c00	46	{ .name = "max77693-pmic", },
efa3ca41 KK	47	{
	48	.name = "max77693-charger",
	49	.of_compatible = "maxim,max77693-charger",
	50	},
4589515a MP	51	{
	52	.name = "max77693-muic",
	53	.of_compatible = "maxim,max77693-muic",
	54	},
d1bafd78 JK	55	{
	56	.name = "max77693-haptic",
	57	.of_compatible = "maxim,max77693-haptic",
	58	},
a0bc6072	59	{
224995d7 JA	60	.name = "max77693-led",
224995d7 JA	61	.of_compatible = "maxim,max77693-led",
a0bc6072	62	},
83871c00 CC	63	};
83871c00 CC	64
83871c00 CC	65	static const struct regmap_config max77693_regmap_config = {
	66	.reg_bits = 8,
	67	.val_bits = 8,
	68	.max_register = MAX77693_PMIC_REG_END,
	69	};
	70
342d669c RB	71	static const struct regmap_irq max77693_led_irqs[] = {
	72	{ .mask = LED_IRQ_FLED2_OPEN, },
	73	{ .mask = LED_IRQ_FLED2_SHORT, },
	74	{ .mask = LED_IRQ_FLED1_OPEN, },
	75	{ .mask = LED_IRQ_FLED1_SHORT, },
	76	{ .mask = LED_IRQ_MAX_FLASH, },
	77	};
	78
	79	static const struct regmap_irq_chip max77693_led_irq_chip = {
	80	.name = "max77693-led",
	81	.status_base = MAX77693_LED_REG_FLASH_INT,
	82	.mask_base = MAX77693_LED_REG_FLASH_INT_MASK,
	83	.mask_invert = false,
	84	.num_regs = 1,
	85	.irqs = max77693_led_irqs,
	86	.num_irqs = ARRAY_SIZE(max77693_led_irqs),
	87	};
	88
	89	static const struct regmap_irq max77693_topsys_irqs[] = {
	90	{ .mask = TOPSYS_IRQ_T120C_INT, },
	91	{ .mask = TOPSYS_IRQ_T140C_INT, },
	92	{ .mask = TOPSYS_IRQ_LOWSYS_INT, },
	93	};
	94
	95	static const struct regmap_irq_chip max77693_topsys_irq_chip = {
	96	.name = "max77693-topsys",
	97	.status_base = MAX77693_PMIC_REG_TOPSYS_INT,
	98	.mask_base = MAX77693_PMIC_REG_TOPSYS_INT_MASK,
	99	.mask_invert = false,
	100	.num_regs = 1,
	101	.irqs = max77693_topsys_irqs,
	102	.num_irqs = ARRAY_SIZE(max77693_topsys_irqs),
	103	};
	104
	105	static const struct regmap_irq max77693_charger_irqs[] = {
	106	{ .mask = CHG_IRQ_BYP_I, },
	107	{ .mask = CHG_IRQ_THM_I, },
	108	{ .mask = CHG_IRQ_BAT_I, },
	109	{ .mask = CHG_IRQ_CHG_I, },
	110	{ .mask = CHG_IRQ_CHGIN_I, },
	111	};
	112
	113	static const struct regmap_irq_chip max77693_charger_irq_chip = {
	114	.name = "max77693-charger",
	115	.status_base = MAX77693_CHG_REG_CHG_INT,
	116	.mask_base = MAX77693_CHG_REG_CHG_INT_MASK,
	117	.mask_invert = false,
	118	.num_regs = 1,
	119	.irqs = max77693_charger_irqs,
	120	.num_irqs = ARRAY_SIZE(max77693_charger_irqs),
	121	};
	122
75ad1327 KK	123	static const struct regmap_config max77693_regmap_muic_config = {
	124	.reg_bits = 8,
	125	.val_bits = 8,
	126	.max_register = MAX77693_MUIC_REG_END,
	127	};
	128
342d669c RB	129	static const struct regmap_irq max77693_muic_irqs[] = {
	130	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC, },
	131	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_LOW, },
	132	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_ERR, },
	133	{ .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC1K, },
	134
	135	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGTYP, },
	136	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGDETREUN, },
	137	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_DCDTMR, },
	138	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_DXOVP, },
	139	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_VBVOLT, },
	140	{ .reg_offset = 1, .mask = MUIC_IRQ_INT2_VIDRM, },
	141
	142	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_EOC, },
	143	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_CGMBC, },
	144	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_OVP, },
	145	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_MBCCHG_ERR, },
	146	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_CHG_ENABLED, },
	147	{ .reg_offset = 2, .mask = MUIC_IRQ_INT3_BAT_DET, },
	148	};
	149
	150	static const struct regmap_irq_chip max77693_muic_irq_chip = {
	151	.name = "max77693-muic",
	152	.status_base = MAX77693_MUIC_REG_INT1,
	153	.mask_base = MAX77693_MUIC_REG_INTMASK1,
	154	.mask_invert = true,
	155	.num_regs = 3,
	156	.irqs = max77693_muic_irqs,
	157	.num_irqs = ARRAY_SIZE(max77693_muic_irqs),
	158	};
	159
efbf4922 JK	160	static const struct regmap_config max77693_regmap_haptic_config = {
	161	.reg_bits = 8,
	162	.val_bits = 8,
	163	.max_register = MAX77693_HAPTIC_REG_END,
	164	};
	165
83871c00 CC	166	static int max77693_i2c_probe(struct i2c_client *i2c,
	167	const struct i2c_device_id *id)
	168	{
	169	struct max77693_dev *max77693;
d0540f91	170	unsigned int reg_data;
83871c00 CC	171	int ret = 0;
	172
	173	max77693 = devm_kzalloc(&i2c->dev,
	174	sizeof(struct max77693_dev), GFP_KERNEL);
	175	if (max77693 == NULL)
	176	return -ENOMEM;
	177
83871c00 CC	178	i2c_set_clientdata(i2c, max77693);
	179	max77693->dev = &i2c->dev;
	180	max77693->i2c = i2c;
	181	max77693->irq = i2c->irq;
	182	max77693->type = id->driver_data;
	183
2429d863 AL	184	max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config);
	185	if (IS_ERR(max77693->regmap)) {
	186	ret = PTR_ERR(max77693->regmap);
	187	dev_err(max77693->dev, "failed to allocate register map: %d\n",
	188	ret);
	189	return ret;
	190	}
83871c00	191
d0540f91	192	ret = regmap_read(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2,
2429d863 AL	193	&reg_data);
2429d863 AL	194	if (ret < 0) {
83871c00	195	dev_err(max77693->dev, "device not found on this channel\n");
2429d863	196	return ret;
83871c00 CC	197	} else
	198	dev_info(max77693->dev, "device ID: 0x%x\n", reg_data);
	199
61b305cd KK	200	max77693->i2c_muic = i2c_new_dummy(i2c->adapter, I2C_ADDR_MUIC);
61b305cd KK	201	if (!max77693->i2c_muic) {
ad09dd6a KK	202	dev_err(max77693->dev, "Failed to allocate I2C device for MUIC\n");
	203	return -ENODEV;
	204	}
61b305cd	205	i2c_set_clientdata(max77693->i2c_muic, max77693);
83871c00	206
61b305cd KK	207	max77693->i2c_haptic = i2c_new_dummy(i2c->adapter, I2C_ADDR_HAPTIC);
61b305cd KK	208	if (!max77693->i2c_haptic) {
ad09dd6a KK	209	dev_err(max77693->dev, "Failed to allocate I2C device for Haptic\n");
	210	ret = -ENODEV;
	211	goto err_i2c_haptic;
	212	}
61b305cd	213	i2c_set_clientdata(max77693->i2c_haptic, max77693);
83871c00	214
61b305cd	215	max77693->regmap_haptic = devm_regmap_init_i2c(max77693->i2c_haptic,
efbf4922 JK	216	&max77693_regmap_haptic_config);
	217	if (IS_ERR(max77693->regmap_haptic)) {
	218	ret = PTR_ERR(max77693->regmap_haptic);
	219	dev_err(max77693->dev,
	220	"failed to initialize haptic register map: %d\n", ret);
	221	goto err_regmap;
	222	}
	223
b186b124 CC	224	/*
	225	* Initialize register map for MUIC device because use regmap-muic
	226	* instance of MUIC device when irq of max77693 is initialized
	227	* before call max77693-muic probe() function.
	228	*/
61b305cd	229	max77693->regmap_muic = devm_regmap_init_i2c(max77693->i2c_muic,
75ad1327	230	&max77693_regmap_muic_config);
b186b124 CC	231	if (IS_ERR(max77693->regmap_muic)) {
	232	ret = PTR_ERR(max77693->regmap_muic);
	233	dev_err(max77693->dev,
	234	"failed to allocate register map: %d\n", ret);
efbf4922	235	goto err_regmap;
b186b124 CC	236	}
b186b124 CC	237
342d669c RB	238	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
	239	IRQF_ONESHOT \| IRQF_SHARED \|
	240	IRQF_TRIGGER_FALLING, 0,
	241	&max77693_led_irq_chip,
	242	&max77693->irq_data_led);
	243	if (ret) {
	244	dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
efbf4922	245	goto err_regmap;
342d669c RB	246	}
	247
	248	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
	249	IRQF_ONESHOT \| IRQF_SHARED \|
	250	IRQF_TRIGGER_FALLING, 0,
	251	&max77693_topsys_irq_chip,
	252	&max77693->irq_data_topsys);
	253	if (ret) {
	254	dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
	255	goto err_irq_topsys;
	256	}
	257
	258	ret = regmap_add_irq_chip(max77693->regmap, max77693->irq,
	259	IRQF_ONESHOT \| IRQF_SHARED \|
	260	IRQF_TRIGGER_FALLING, 0,
	261	&max77693_charger_irq_chip,
61b305cd	262	&max77693->irq_data_chg);
342d669c RB	263	if (ret) {
	264	dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
	265	goto err_irq_charger;
	266	}
	267
43fc9396	268	ret = regmap_add_irq_chip(max77693->regmap_muic, max77693->irq,
342d669c RB	269	IRQF_ONESHOT \| IRQF_SHARED \|
	270	IRQF_TRIGGER_FALLING, 0,
	271	&max77693_muic_irq_chip,
	272	&max77693->irq_data_muic);
	273	if (ret) {
	274	dev_err(max77693->dev, "failed to add irq chip: %d\n", ret);
	275	goto err_irq_muic;
	276	}
6592ebb3	277
c0acb814 KK	278	/* Unmask interrupts from all blocks in interrupt source register */
	279	ret = regmap_update_bits(max77693->regmap,
	280	MAX77693_PMIC_REG_INTSRC_MASK,
	281	SRC_IRQ_ALL, (unsigned int)~SRC_IRQ_ALL);
	282	if (ret < 0) {
	283	dev_err(max77693->dev,
	284	"Could not unmask interrupts in INTSRC: %d\n",
	285	ret);
	286	goto err_intsrc;
	287	}
	288
83871c00 CC	289	pm_runtime_set_active(max77693->dev);
	290
	291	ret = mfd_add_devices(max77693->dev, -1, max77693_devs,
0848c94f	292	ARRAY_SIZE(max77693_devs), NULL, 0, NULL);
83871c00 CC	293	if (ret < 0)
	294	goto err_mfd;
	295
	296	return ret;
	297
	298	err_mfd:
342d669c	299	mfd_remove_devices(max77693->dev);
c0acb814	300	err_intsrc:
342d669c RB	301	regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic);
342d669c RB	302	err_irq_muic:
61b305cd	303	regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg);
342d669c RB	304	err_irq_charger:
	305	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
	306	err_irq_topsys:
	307	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);
efbf4922	308	err_regmap:
61b305cd	309	i2c_unregister_device(max77693->i2c_haptic);
ad09dd6a	310	err_i2c_haptic:
61b305cd	311	i2c_unregister_device(max77693->i2c_muic);
83871c00 CC	312	return ret;
	313	}
	314
	315	static int max77693_i2c_remove(struct i2c_client *i2c)
	316	{
	317	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
	318
	319	mfd_remove_devices(max77693->dev);
342d669c RB	320
342d669c RB	321	regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic);
61b305cd	322	regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg);
342d669c RB	323	regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys);
	324	regmap_del_irq_chip(max77693->irq, max77693->irq_data_led);
	325
61b305cd KK	326	i2c_unregister_device(max77693->i2c_muic);
61b305cd KK	327	i2c_unregister_device(max77693->i2c_haptic);
83871c00 CC	328
	329	return 0;
	330	}
	331
	332	static const struct i2c_device_id max77693_i2c_id[] = {
	333	{ "max77693", TYPE_MAX77693 },
	334	{ }
	335	};
	336	MODULE_DEVICE_TABLE(i2c, max77693_i2c_id);
	337
6592ebb3 CC	338	static int max77693_suspend(struct device *dev)
6592ebb3 CC	339	{
1b5420e1	340	struct i2c_client *i2c = to_i2c_client(dev);
6592ebb3 CC	341	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
6592ebb3 CC	342
342d669c RB	343	if (device_may_wakeup(dev)) {
	344	enable_irq_wake(max77693->irq);
	345	disable_irq(max77693->irq);
	346	}
	347
6592ebb3 CC	348	return 0;
	349	}
	350
	351	static int max77693_resume(struct device *dev)
	352	{
1b5420e1	353	struct i2c_client *i2c = to_i2c_client(dev);
6592ebb3 CC	354	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
6592ebb3 CC	355
342d669c RB	356	if (device_may_wakeup(dev)) {
	357	disable_irq_wake(max77693->irq);
	358	enable_irq(max77693->irq);
	359	}
	360
	361	return 0;
6592ebb3 CC	362	}
6592ebb3 CC	363
12477a32	364	static const struct dev_pm_ops max77693_pm = {
6592ebb3 CC	365	.suspend = max77693_suspend,
	366	.resume = max77693_resume,
	367	};
	368
4657185c	369	#ifdef CONFIG_OF
5ce9a55b	370	static const struct of_device_id max77693_dt_match[] = {
4657185c AH	371	{ .compatible = "maxim,max77693" },
	372	{},
	373	};
073d4aca	374	MODULE_DEVICE_TABLE(of, max77693_dt_match);
4657185c AH	375	#endif
4657185c AH	376
83871c00 CC	377	static struct i2c_driver max77693_i2c_driver = {
	378	.driver = {
	379	.name = "max77693",
6592ebb3	380	.pm = &max77693_pm,
4657185c	381	.of_match_table = of_match_ptr(max77693_dt_match),
83871c00 CC	382	},
	383	.probe = max77693_i2c_probe,
	384	.remove = max77693_i2c_remove,
	385	.id_table = max77693_i2c_id,
	386	};
	387
073d4aca	388	module_i2c_driver(max77693_i2c_driver);
83871c00 CC	389
	390	MODULE_DESCRIPTION("MAXIM 77693 multi-function core driver");
	391	MODULE_AUTHOR("SangYoung, Son <hello.son@samsung.com>");
	392	MODULE_LICENSE("GPL");