[linux-2.6-block.git] / drivers / regulator / s2mps11.c

/*
 * s2mps11.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/bug.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/samsung/core.h>
#include <linux/mfd/samsung/s2mps11.h>

struct s2mps11_info {
	struct device *dev;
	struct sec_pmic_dev *iodev;
	struct regulator_dev **rdev;

	int ramp_delay2;
	int ramp_delay34;
	int ramp_delay5;
	int ramp_delay16;
	int ramp_delay7810;
	int ramp_delay9;

	bool buck6_ramp;
	bool buck2_ramp;
	bool buck3_ramp;
	bool buck4_ramp;
};

static int get_ramp_delay(int ramp_delay)
{
	unsigned char cnt = 0;

	ramp_delay /= 6;

	while (true) {
		ramp_delay = ramp_delay >> 1;
		if (ramp_delay == 0)
			break;
		cnt++;
	}
	return cnt;
}

static struct regulator_ops s2mps11_ldo_ops = {
	.list_voltage		= regulator_list_voltage_linear,
	.map_voltage		= regulator_map_voltage_linear,
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
};

static struct regulator_ops s2mps11_buck_ops = {
	.list_voltage		= regulator_list_voltage_linear,
	.map_voltage		= regulator_map_voltage_linear,
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
};

#define regulator_desc_ldo1(num)	{		\
	.name		= "LDO"#num,			\
	.id		= S2MPS11_LDO##num,		\
	.ops		= &s2mps11_ldo_ops,		\
	.type		= REGULATOR_VOLTAGE,		\
	.owner		= THIS_MODULE,			\
	.min_uV		= S2MPS11_LDO_MIN,		\
	.uV_step	= S2MPS11_LDO_STEP1,		\
	.n_voltages	= S2MPS11_LDO_N_VOLTAGES,	\
	.vsel_reg	= S2MPS11_REG_L1CTRL + num - 1,	\
	.vsel_mask	= S2MPS11_LDO_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_L1CTRL + num - 1,	\
	.enable_mask	= S2MPS11_ENABLE_MASK		\
}
#define regulator_desc_ldo2(num)	{		\
	.name		= "LDO"#num,			\
	.id		= S2MPS11_LDO##num,		\
	.ops		= &s2mps11_ldo_ops,		\
	.type		= REGULATOR_VOLTAGE,		\
	.owner		= THIS_MODULE,			\
	.min_uV		= S2MPS11_LDO_MIN,		\
	.uV_step	= S2MPS11_LDO_STEP2,		\
	.n_voltages	= S2MPS11_LDO_N_VOLTAGES,	\
	.vsel_reg	= S2MPS11_REG_L1CTRL + num - 1,	\
	.vsel_mask	= S2MPS11_LDO_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_L1CTRL + num - 1,	\
	.enable_mask	= S2MPS11_ENABLE_MASK		\
}

#define regulator_desc_buck1_4(num)	{			\
	.name		= "BUCK"#num,				\
	.id		= S2MPS11_BUCK##num,			\
	.ops		= &s2mps11_buck_ops,			\
	.type		= REGULATOR_VOLTAGE,			\
	.owner		= THIS_MODULE,				\
	.min_uV		= S2MPS11_BUCK_MIN1,			\
	.uV_step	= S2MPS11_BUCK_STEP1,			\
	.n_voltages	= S2MPS11_BUCK_N_VOLTAGES,		\
	.vsel_reg	= S2MPS11_REG_B1CTRL2 + (num - 1) * 2,	\
	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_B1CTRL1 + (num - 1) * 2,	\
	.enable_mask	= S2MPS11_ENABLE_MASK			\
}

#define regulator_desc_buck5	{				\
	.name		= "BUCK5",				\
	.id		= S2MPS11_BUCK5,			\
	.ops		= &s2mps11_buck_ops,			\
	.type		= REGULATOR_VOLTAGE,			\
	.owner		= THIS_MODULE,				\
	.min_uV		= S2MPS11_BUCK_MIN1,			\
	.uV_step	= S2MPS11_BUCK_STEP1,			\
	.n_voltages	= S2MPS11_BUCK_N_VOLTAGES,		\
	.vsel_reg	= S2MPS11_REG_B5CTRL2,			\
	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_B5CTRL1,			\
	.enable_mask	= S2MPS11_ENABLE_MASK			\
}

#define regulator_desc_buck6_8(num)	{			\
	.name		= "BUCK"#num,				\
	.id		= S2MPS11_BUCK##num,			\
	.ops		= &s2mps11_buck_ops,			\
	.type		= REGULATOR_VOLTAGE,			\
	.owner		= THIS_MODULE,				\
	.min_uV		= S2MPS11_BUCK_MIN1,			\
	.uV_step	= S2MPS11_BUCK_STEP1,			\
	.n_voltages	= S2MPS11_BUCK_N_VOLTAGES,		\
	.vsel_reg	= S2MPS11_REG_B6CTRL2 + (num - 6) * 2,	\
	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_B6CTRL1 + (num - 6) * 2,	\
	.enable_mask	= S2MPS11_ENABLE_MASK			\
}

#define regulator_desc_buck9	{				\
	.name		= "BUCK9",				\
	.id		= S2MPS11_BUCK9,			\
	.ops		= &s2mps11_buck_ops,			\
	.type		= REGULATOR_VOLTAGE,			\
	.owner		= THIS_MODULE,				\
	.min_uV		= S2MPS11_BUCK_MIN3,			\
	.uV_step	= S2MPS11_BUCK_STEP3,			\
	.n_voltages	= S2MPS11_BUCK_N_VOLTAGES,		\
	.vsel_reg	= S2MPS11_REG_B9CTRL2,			\
	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_B9CTRL1,			\
	.enable_mask	= S2MPS11_ENABLE_MASK			\
}

#define regulator_desc_buck10	{				\
	.name		= "BUCK10",				\
	.id		= S2MPS11_BUCK10,			\
	.ops		= &s2mps11_buck_ops,			\
	.type		= REGULATOR_VOLTAGE,			\
	.owner		= THIS_MODULE,				\
	.min_uV		= S2MPS11_BUCK_MIN2,			\
	.uV_step	= S2MPS11_BUCK_STEP2,			\
	.n_voltages	= S2MPS11_BUCK_N_VOLTAGES,		\
	.vsel_reg	= S2MPS11_REG_B9CTRL2,			\
	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK		\
	.enable_reg	= S2MPS11_REG_B9CTRL1,			\
	.enable_mask	= S2MPS11_ENABLE_MASK			\
}

static struct regulator_desc regulators[] = {
	regulator_desc_ldo2(1),
	regulator_desc_ldo1(2),
	regulator_desc_ldo1(3),
	regulator_desc_ldo1(4),
	regulator_desc_ldo1(5),
	regulator_desc_ldo2(6),
	regulator_desc_ldo1(7),
	regulator_desc_ldo1(8),
	regulator_desc_ldo1(9),
	regulator_desc_ldo1(10),
	regulator_desc_ldo2(11),
	regulator_desc_ldo1(12),
	regulator_desc_ldo1(13),
	regulator_desc_ldo1(14),
	regulator_desc_ldo1(15),
	regulator_desc_ldo1(16),
	regulator_desc_ldo1(17),
	regulator_desc_ldo1(18),
	regulator_desc_ldo1(19),
	regulator_desc_ldo1(20),
	regulator_desc_ldo1(21),
	regulator_desc_ldo2(22),
	regulator_desc_ldo2(23),
	regulator_desc_ldo1(24),
	regulator_desc_ldo1(25),
	regulator_desc_ldo1(26),
	regulator_desc_ldo2(27),
	regulator_desc_ldo1(28),
	regulator_desc_ldo1(29),
	regulator_desc_ldo1(30),
	regulator_desc_ldo1(31),
	regulator_desc_ldo1(32),
	regulator_desc_ldo1(33),
	regulator_desc_ldo1(34),
	regulator_desc_ldo1(35),
	regulator_desc_ldo1(36),
	regulator_desc_ldo1(37),
	regulator_desc_ldo1(38),
	regulator_desc_buck1_4(1),
	regulator_desc_buck1_4(2),
	regulator_desc_buck1_4(3),
	regulator_desc_buck1_4(4),
	regulator_desc_buck5,
	regulator_desc_buck6_8(6),
	regulator_desc_buck6_8(7),
	regulator_desc_buck6_8(8),
	regulator_desc_buck9,
	regulator_desc_buck10,
};

static __devinit int s2mps11_pmic_probe(struct platform_device *pdev)
{
	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
	struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
	struct regulator_config config = { };
	struct regulator_dev **rdev;
	struct s2mps11_info *s2mps11;
	int i, ret, size;
	unsigned char ramp_enable, ramp_reg = 0;

	if (!pdata) {
		dev_err(pdev->dev.parent, "Platform data not supplied\n");
		return -ENODEV;
	}

	s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
				GFP_KERNEL);
	if (!s2mps11)
		return -ENOMEM;

	size = sizeof(struct regulator_dev *) * S2MPS11_REGULATOR_MAX;
	s2mps11->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
	if (!s2mps11->rdev) {
		return -ENOMEM;
	}

	rdev = s2mps11->rdev;
	config.dev = &pdev->dev;
	config.regmap = iodev->regmap;
	platform_set_drvdata(pdev, s2mps11);

	s2mps11->ramp_delay2 = pdata->buck2_ramp_delay;
	s2mps11->ramp_delay34 = pdata->buck34_ramp_delay;
	s2mps11->ramp_delay5 = pdata->buck5_ramp_delay;
	s2mps11->ramp_delay16 = pdata->buck16_ramp_delay;
	s2mps11->ramp_delay7810 = pdata->buck7810_ramp_delay;
	s2mps11->ramp_delay9 = pdata->buck9_ramp_delay;

	s2mps11->buck6_ramp = pdata->buck6_ramp_enable;
	s2mps11->buck2_ramp = pdata->buck2_ramp_enable;
	s2mps11->buck3_ramp = pdata->buck3_ramp_enable;
	s2mps11->buck4_ramp = pdata->buck4_ramp_enable;

	ramp_enable = (s2mps11->buck2_ramp << 3) | (s2mps11->buck3_ramp << 2) |
		(s2mps11->buck4_ramp << 1) | s2mps11->buck6_ramp ;

	if (ramp_enable) {
		if (s2mps11->buck2_ramp)
			ramp_reg |= get_ramp_delay(s2mps11->ramp_delay2) >> 6;
		if (s2mps11->buck3_ramp || s2mps11->buck4_ramp)
			ramp_reg |= get_ramp_delay(s2mps11->ramp_delay34) >> 4;
		sec_reg_update(s2mps11->iodev, S2MPS11_REG_RAMP,
			ramp_reg | ramp_enable, 0xff);
	}

	ramp_reg &= 0x00;
	ramp_reg |= get_ramp_delay(s2mps11->ramp_delay5) >> 6;
	ramp_reg |= get_ramp_delay(s2mps11->ramp_delay16) >> 4;
	ramp_reg |= get_ramp_delay(s2mps11->ramp_delay7810) >> 2;
	ramp_reg |= get_ramp_delay(s2mps11->ramp_delay9);
	sec_reg_update(s2mps11->iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg, 0xff);

	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {

		config.dev = s2mps11->dev;
		config.regmap = iodev->regmap;
		config.init_data = pdata->regulators[i].initdata;
		config.driver_data = s2mps11;

		rdev[i] = regulator_register(&regulators[i], &config);
		if (IS_ERR(rdev[i])) {
			ret = PTR_ERR(rdev[i]);
			dev_err(s2mps11->dev, "regulator init failed for %d\n",
					i);
			rdev[i] = NULL;
			goto err;
		}
	}

	return 0;
err:
	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
		if (rdev[i])
			regulator_unregister(rdev[i]);

	return ret;
}

static int __devexit s2mps11_pmic_remove(struct platform_device *pdev)
{
	struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
	struct regulator_dev **rdev = s2mps11->rdev;
	int i;

	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
		if (rdev[i])
			regulator_unregister(rdev[i]);

	return 0;
}

static const struct platform_device_id s2mps11_pmic_id[] = {
	{ "s2mps11-pmic", 0},
	{ },
};
MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);

static struct platform_driver s2mps11_pmic_driver = {
	.driver = {
		.name = "s2mps11-pmic",
		.owner = THIS_MODULE,
	},
	.probe = s2mps11_pmic_probe,
	.remove = __devexit_p(s2mps11_pmic_remove),
	.id_table = s2mps11_pmic_id,
};

static int __init s2mps11_pmic_init(void)
{
	return platform_driver_register(&s2mps11_pmic_driver);
}
subsys_initcall(s2mps11_pmic_init);

static void __exit s2mps11_pmic_exit(void)
{
	platform_driver_unregister(&s2mps11_pmic_driver);
}
module_exit(s2mps11_pmic_exit);

/* Module information */
MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
MODULE_DESCRIPTION("SAMSUNG S2MPS11 Regulator Driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
cb74685e SK	1	/*
	2	* s2mps11.c
	3	*
	4	* Copyright (c) 2012 Samsung Electronics Co., Ltd
	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/bug.h>
	15	#include <linux/delay.h>
	16	#include <linux/err.h>
	17	#include <linux/gpio.h>
	18	#include <linux/slab.h>
	19	#include <linux/module.h>
	20	#include <linux/platform_device.h>
	21	#include <linux/regulator/driver.h>
	22	#include <linux/regulator/machine.h>
	23	#include <linux/mfd/samsung/core.h>
	24	#include <linux/mfd/samsung/s2mps11.h>
	25
	26	struct s2mps11_info {
	27	struct device *dev;
	28	struct sec_pmic_dev *iodev;
	29	struct regulator_dev **rdev;
	30
	31	int ramp_delay2;
	32	int ramp_delay34;
	33	int ramp_delay5;
	34	int ramp_delay16;
	35	int ramp_delay7810;
	36	int ramp_delay9;
	37
	38	bool buck6_ramp;
	39	bool buck2_ramp;
	40	bool buck3_ramp;
	41	bool buck4_ramp;
	42	};
	43
	44	static int get_ramp_delay(int ramp_delay)
	45	{
	46	unsigned char cnt = 0;
	47
	48	ramp_delay /= 6;
	49
	50	while (true) {
	51	ramp_delay = ramp_delay >> 1;
	52	if (ramp_delay == 0)
	53	break;
	54	cnt++;
	55	}
	56	return cnt;
	57	}
	58
	59	static struct regulator_ops s2mps11_ldo_ops = {
	60	.list_voltage = regulator_list_voltage_linear,
	61	.map_voltage = regulator_map_voltage_linear,
	62	.is_enabled = regulator_is_enabled_regmap,
	63	.enable = regulator_enable_regmap,
	64	.disable = regulator_disable_regmap,
65	.get_voltage_sel = regulator_get_voltage_sel_regmap,
66	.set_voltage_sel = regulator_set_voltage_sel_regmap,
67	.set_voltage_time_sel = regulator_set_voltage_time_sel,
68	};
69
70	static struct regulator_ops s2mps11_buck_ops = {
71	.list_voltage = regulator_list_voltage_linear,
72	.map_voltage = regulator_map_voltage_linear,
73	.is_enabled = regulator_is_enabled_regmap,
74	.enable = regulator_enable_regmap,
75	.disable = regulator_disable_regmap,
76	.get_voltage_sel = regulator_get_voltage_sel_regmap,
77	.set_voltage_sel = regulator_set_voltage_sel_regmap,
78	.set_voltage_time_sel = regulator_set_voltage_time_sel,
79	};
80
81	#define regulator_desc_ldo1(num) { \
82	.name = "LDO"#num, \
83	.id = S2MPS11_LDO##num, \
84	.ops = &s2mps11_ldo_ops, \
85	.type = REGULATOR_VOLTAGE, \
86	.owner = THIS_MODULE, \
87	.min_uV = S2MPS11_LDO_MIN, \
88	.uV_step = S2MPS11_LDO_STEP1, \
89	.n_voltages = S2MPS11_LDO_N_VOLTAGES, \
90	.vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
91	.vsel_mask = S2MPS11_LDO_VSEL_MASK \
92	.enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
93	.enable_mask = S2MPS11_ENABLE_MASK \
94	}
95	#define regulator_desc_ldo2(num) { \
96	.name = "LDO"#num, \
97	.id = S2MPS11_LDO##num, \
98	.ops = &s2mps11_ldo_ops, \
99	.type = REGULATOR_VOLTAGE, \
100	.owner = THIS_MODULE, \
101	.min_uV = S2MPS11_LDO_MIN, \
102	.uV_step = S2MPS11_LDO_STEP2, \
103	.n_voltages = S2MPS11_LDO_N_VOLTAGES, \
104	.vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
105	.vsel_mask = S2MPS11_LDO_VSEL_MASK \
106	.enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
107	.enable_mask = S2MPS11_ENABLE_MASK \
108	}
109
110	#define regulator_desc_buck1_4(num) { \
111	.name = "BUCK"#num, \
112	.id = S2MPS11_BUCK##num, \
113	.ops = &s2mps11_buck_ops, \
114	.type = REGULATOR_VOLTAGE, \
115	.owner = THIS_MODULE, \
116	.min_uV = S2MPS11_BUCK_MIN1, \
117	.uV_step = S2MPS11_BUCK_STEP1, \
118	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
119	.vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
120	.vsel_mask = S2MPS11_BUCK_VSEL_MASK \
121	.enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
122	.enable_mask = S2MPS11_ENABLE_MASK \
123	}
124
125	#define regulator_desc_buck5 { \
126	.name = "BUCK5", \
127	.id = S2MPS11_BUCK5, \
128	.ops = &s2mps11_buck_ops, \
129	.type = REGULATOR_VOLTAGE, \
130	.owner = THIS_MODULE, \
131	.min_uV = S2MPS11_BUCK_MIN1, \
132	.uV_step = S2MPS11_BUCK_STEP1, \
133	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
134	.vsel_reg = S2MPS11_REG_B5CTRL2, \
135	.vsel_mask = S2MPS11_BUCK_VSEL_MASK \
136	.enable_reg = S2MPS11_REG_B5CTRL1, \
137	.enable_mask = S2MPS11_ENABLE_MASK \
138	}
139
140	#define regulator_desc_buck6_8(num) { \
141	.name = "BUCK"#num, \
142	.id = S2MPS11_BUCK##num, \
143	.ops = &s2mps11_buck_ops, \
144	.type = REGULATOR_VOLTAGE, \
145	.owner = THIS_MODULE, \
146	.min_uV = S2MPS11_BUCK_MIN1, \
147	.uV_step = S2MPS11_BUCK_STEP1, \
148	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
149	.vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
150	.vsel_mask = S2MPS11_BUCK_VSEL_MASK \
151	.enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
152	.enable_mask = S2MPS11_ENABLE_MASK \
153	}
154
155	#define regulator_desc_buck9 { \
156	.name = "BUCK9", \
157	.id = S2MPS11_BUCK9, \
158	.ops = &s2mps11_buck_ops, \
159	.type = REGULATOR_VOLTAGE, \
160	.owner = THIS_MODULE, \
161	.min_uV = S2MPS11_BUCK_MIN3, \
162	.uV_step = S2MPS11_BUCK_STEP3, \
163	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
164	.vsel_reg = S2MPS11_REG_B9CTRL2, \
165	.vsel_mask = S2MPS11_BUCK_VSEL_MASK \
166	.enable_reg = S2MPS11_REG_B9CTRL1, \
167	.enable_mask = S2MPS11_ENABLE_MASK \
168	}
169
170	#define regulator_desc_buck10 { \
171	.name = "BUCK10", \
172	.id = S2MPS11_BUCK10, \
173	.ops = &s2mps11_buck_ops, \
174	.type = REGULATOR_VOLTAGE, \
175	.owner = THIS_MODULE, \
176	.min_uV = S2MPS11_BUCK_MIN2, \
177	.uV_step = S2MPS11_BUCK_STEP2, \
178	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
179	.vsel_reg = S2MPS11_REG_B9CTRL2, \
180	.vsel_mask = S2MPS11_BUCK_VSEL_MASK \
181	.enable_reg = S2MPS11_REG_B9CTRL1, \
182	.enable_mask = S2MPS11_ENABLE_MASK \
183	}
184
185	static struct regulator_desc regulators[] = {
186	regulator_desc_ldo2(1),
187	regulator_desc_ldo1(2),
188	regulator_desc_ldo1(3),
189	regulator_desc_ldo1(4),
190	regulator_desc_ldo1(5),
191	regulator_desc_ldo2(6),
192	regulator_desc_ldo1(7),
193	regulator_desc_ldo1(8),
194	regulator_desc_ldo1(9),
195	regulator_desc_ldo1(10),
196	regulator_desc_ldo2(11),
197	regulator_desc_ldo1(12),
198	regulator_desc_ldo1(13),
199	regulator_desc_ldo1(14),
200	regulator_desc_ldo1(15),
201	regulator_desc_ldo1(16),
202	regulator_desc_ldo1(17),
203	regulator_desc_ldo1(18),
204	regulator_desc_ldo1(19),
205	regulator_desc_ldo1(20),
206	regulator_desc_ldo1(21),
207	regulator_desc_ldo2(22),
208	regulator_desc_ldo2(23),
209	regulator_desc_ldo1(24),
210	regulator_desc_ldo1(25),
211	regulator_desc_ldo1(26),
212	regulator_desc_ldo2(27),
213	regulator_desc_ldo1(28),
214	regulator_desc_ldo1(29),
215	regulator_desc_ldo1(30),
216	regulator_desc_ldo1(31),
217	regulator_desc_ldo1(32),
218	regulator_desc_ldo1(33),
219	regulator_desc_ldo1(34),
220	regulator_desc_ldo1(35),
221	regulator_desc_ldo1(36),
222	regulator_desc_ldo1(37),
223	regulator_desc_ldo1(38),
224	regulator_desc_buck1_4(1),
225	regulator_desc_buck1_4(2),
226	regulator_desc_buck1_4(3),
227	regulator_desc_buck1_4(4),
228	regulator_desc_buck5,
229	regulator_desc_buck6_8(6),
230	regulator_desc_buck6_8(7),
231	regulator_desc_buck6_8(8),
232	regulator_desc_buck9,
233	regulator_desc_buck10,
234	};
235
236	static __devinit int s2mps11_pmic_probe(struct platform_device *pdev)
237	{
238	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
239	struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
240	struct regulator_config config = { };
241	struct regulator_dev **rdev;
242	struct s2mps11_info *s2mps11;
243	int i, ret, size;
244	unsigned char ramp_enable, ramp_reg = 0;
245
246	if (!pdata) {
247	dev_err(pdev->dev.parent, "Platform data not supplied\n");
248	return -ENODEV;
249	}
250
251	s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
252	GFP_KERNEL);
253	if (!s2mps11)
254	return -ENOMEM;
255
256	size = sizeof(struct regulator_dev ) S2MPS11_REGULATOR_MAX;
257	s2mps11->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
258	if (!s2mps11->rdev) {
259	return -ENOMEM;
260	}
261
262	rdev = s2mps11->rdev;
263	config.dev = &pdev->dev;
264	config.regmap = iodev->regmap;
265	platform_set_drvdata(pdev, s2mps11);
266
267	s2mps11->ramp_delay2 = pdata->buck2_ramp_delay;
268	s2mps11->ramp_delay34 = pdata->buck34_ramp_delay;
269	s2mps11->ramp_delay5 = pdata->buck5_ramp_delay;
270	s2mps11->ramp_delay16 = pdata->buck16_ramp_delay;
271	s2mps11->ramp_delay7810 = pdata->buck7810_ramp_delay;
272	s2mps11->ramp_delay9 = pdata->buck9_ramp_delay;
273
274	s2mps11->buck6_ramp = pdata->buck6_ramp_enable;
275	s2mps11->buck2_ramp = pdata->buck2_ramp_enable;
276	s2mps11->buck3_ramp = pdata->buck3_ramp_enable;
277	s2mps11->buck4_ramp = pdata->buck4_ramp_enable;
278
279	ramp_enable = (s2mps11->buck2_ramp << 3) \| (s2mps11->buck3_ramp << 2) \|
280	(s2mps11->buck4_ramp << 1) \| s2mps11->buck6_ramp ;
281
282	if (ramp_enable) {
283	if (s2mps11->buck2_ramp)
284	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay2) >> 6;
285	if (s2mps11->buck3_ramp \|\| s2mps11->buck4_ramp)
286	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay34) >> 4;
287	sec_reg_update(s2mps11->iodev, S2MPS11_REG_RAMP,
288	ramp_reg \| ramp_enable, 0xff);
289	}
290
291	ramp_reg &= 0x00;
292	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay5) >> 6;
293	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay16) >> 4;
294	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay7810) >> 2;
295	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay9);
296	sec_reg_update(s2mps11->iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg, 0xff);
297
298	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {
299
300	config.dev = s2mps11->dev;
301	config.regmap = iodev->regmap;
302	config.init_data = pdata->regulators[i].initdata;
303	config.driver_data = s2mps11;
304
305	rdev[i] = regulator_register(&regulators[i], &config);
306	if (IS_ERR(rdev[i])) {
307	ret = PTR_ERR(rdev[i]);
308	dev_err(s2mps11->dev, "regulator init failed for %d\n",
309	i);
310	rdev[i] = NULL;
311	goto err;
312	}
313	}
314
315	return 0;
316	err:
317	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
318	if (rdev[i])
319	regulator_unregister(rdev[i]);
320
321	return ret;
322	}
323
324	static int __devexit s2mps11_pmic_remove(struct platform_device *pdev)
325	{
326	struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
327	struct regulator_dev **rdev = s2mps11->rdev;
328	int i;
329
330	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
331	if (rdev[i])
332	regulator_unregister(rdev[i]);
333
334	return 0;
335	}
336
337	static const struct platform_device_id s2mps11_pmic_id[] = {
338	{ "s2mps11-pmic", 0},
339	{ },
340	};
341	MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
342
343	static struct platform_driver s2mps11_pmic_driver = {
344	.driver = {
345	.name = "s2mps11-pmic",
346	.owner = THIS_MODULE,
347	},
348	.probe = s2mps11_pmic_probe,
349	.remove = __devexit_p(s2mps11_pmic_remove),
350	.id_table = s2mps11_pmic_id,
351	};
352
353	static int __init s2mps11_pmic_init(void)
354	{
355	return platform_driver_register(&s2mps11_pmic_driver);
356	}
357	subsys_initcall(s2mps11_pmic_init);
358
359	static void __exit s2mps11_pmic_exit(void)
360	{
361	platform_driver_unregister(&s2mps11_pmic_driver);
362	}
363	module_exit(s2mps11_pmic_exit);
364
365	/* Module information */
366	MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
367	MODULE_DESCRIPTION("SAMSUNG S2MPS11 Regulator Driver");
368	MODULE_LICENSE("GPL");