[deliverable/linux.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/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 regulator_dev *rdev[S2MPS11_REGULATOR_MAX];

	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 /= 6250;

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

static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
				   unsigned int old_selector,
				   unsigned int new_selector)
{
	struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
	unsigned int ramp_delay = 0;
	int old_volt, new_volt;

	switch (rdev->desc->id) {
	case S2MPS11_BUCK2:
		if (!s2mps11->buck2_ramp)
			return 0;
		ramp_delay = s2mps11->ramp_delay2;
		break;
	case S2MPS11_BUCK3:
		if (!s2mps11->buck3_ramp)
			return 0;
		ramp_delay = s2mps11->ramp_delay34;
		break;
	case S2MPS11_BUCK4:
		if (!s2mps11->buck4_ramp)
			return 0;
		ramp_delay = s2mps11->ramp_delay34;
		break;
	case S2MPS11_BUCK5:
		ramp_delay = s2mps11->ramp_delay5;
		break;
	case S2MPS11_BUCK6:
		if (!s2mps11->buck6_ramp)
			return 0;
	case S2MPS11_BUCK1:
		ramp_delay = s2mps11->ramp_delay16;
		break;
	case S2MPS11_BUCK7:
	case S2MPS11_BUCK8:
	case S2MPS11_BUCK10:
		ramp_delay = s2mps11->ramp_delay7810;
		break;
	case S2MPS11_BUCK9:
		ramp_delay = s2mps11->ramp_delay9;
	}

	if (ramp_delay == 0)
		ramp_delay = rdev->desc->ramp_delay;

	old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
	new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);

	return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
}

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	= s2mps11_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,		\
	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
	.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,		\
	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
	.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,		\
	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
	.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,		\
	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
	.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,		\
	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
	.vsel_reg	= S2MPS11_REG_B10CTRL2,			\
	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK,		\
	.enable_reg	= S2MPS11_REG_B10CTRL1,			\
	.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 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 s2mps11_info *s2mps11;
	int i, ret;
	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;

	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_write(iodev, S2MPS11_REG_RAMP, ramp_reg | ramp_enable);
	}

	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_write(iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg);

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

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

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

	return 0;
err:
	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
		regulator_unregister(s2mps11->rdev[i]);

	return ret;
}

static int s2mps11_pmic_remove(struct platform_device *pdev)
{
	struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
	int i;

	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
		regulator_unregister(s2mps11->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 = 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>
cb74685e SK	15	#include <linux/err.h>
	16	#include <linux/gpio.h>
	17	#include <linux/slab.h>
	18	#include <linux/module.h>
	19	#include <linux/platform_device.h>
	20	#include <linux/regulator/driver.h>
	21	#include <linux/regulator/machine.h>
	22	#include <linux/mfd/samsung/core.h>
	23	#include <linux/mfd/samsung/s2mps11.h>
	24
	25	struct s2mps11_info {
ad46ed14	26	struct regulator_dev *rdev[S2MPS11_REGULATOR_MAX];
cb74685e SK	27
	28	int ramp_delay2;
	29	int ramp_delay34;
	30	int ramp_delay5;
	31	int ramp_delay16;
	32	int ramp_delay7810;
	33	int ramp_delay9;
	34
	35	bool buck6_ramp;
	36	bool buck2_ramp;
	37	bool buck3_ramp;
	38	bool buck4_ramp;
	39	};
	40
	41	static int get_ramp_delay(int ramp_delay)
	42	{
	43	unsigned char cnt = 0;
	44
90068348	45	ramp_delay /= 6250;
cb74685e SK	46
	47	while (true) {
	48	ramp_delay = ramp_delay >> 1;
	49	if (ramp_delay == 0)
	50	break;
	51	cnt++;
	52	}
	53	return cnt;
	54	}
	55
1e1598ed YSB	56	static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
	57	unsigned int old_selector,
	58	unsigned int new_selector)
	59	{
	60	struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
	61	unsigned int ramp_delay = 0;
	62	int old_volt, new_volt;
	63
	64	switch (rdev->desc->id) {
	65	case S2MPS11_BUCK2:
	66	if (!s2mps11->buck2_ramp)
	67	return 0;
	68	ramp_delay = s2mps11->ramp_delay2;
	69	break;
	70	case S2MPS11_BUCK3:
	71	if (!s2mps11->buck3_ramp)
	72	return 0;
	73	ramp_delay = s2mps11->ramp_delay34;
	74	break;
	75	case S2MPS11_BUCK4:
	76	if (!s2mps11->buck4_ramp)
	77	return 0;
	78	ramp_delay = s2mps11->ramp_delay34;
	79	break;
	80	case S2MPS11_BUCK5:
	81	ramp_delay = s2mps11->ramp_delay5;
	82	break;
	83	case S2MPS11_BUCK6:
	84	if (!s2mps11->buck6_ramp)
	85	return 0;
	86	case S2MPS11_BUCK1:
	87	ramp_delay = s2mps11->ramp_delay16;
	88	break;
	89	case S2MPS11_BUCK7:
	90	case S2MPS11_BUCK8:
	91	case S2MPS11_BUCK10:
	92	ramp_delay = s2mps11->ramp_delay7810;
	93	break;
	94	case S2MPS11_BUCK9:
	95	ramp_delay = s2mps11->ramp_delay9;
	96	}
	97
	98	if (ramp_delay == 0)
	99	ramp_delay = rdev->desc->ramp_delay;
	100
	101	old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
	102	new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
	103
	104	return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
	105	}
	106
cb74685e SK	107	static struct regulator_ops s2mps11_ldo_ops = {
	108	.list_voltage = regulator_list_voltage_linear,
	109	.map_voltage = regulator_map_voltage_linear,
	110	.is_enabled = regulator_is_enabled_regmap,
	111	.enable = regulator_enable_regmap,
	112	.disable = regulator_disable_regmap,
	113	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	114	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	115	.set_voltage_time_sel = regulator_set_voltage_time_sel,
	116	};
	117
	118	static struct regulator_ops s2mps11_buck_ops = {
	119	.list_voltage = regulator_list_voltage_linear,
	120	.map_voltage = regulator_map_voltage_linear,
	121	.is_enabled = regulator_is_enabled_regmap,
	122	.enable = regulator_enable_regmap,
	123	.disable = regulator_disable_regmap,
	124	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	125	.set_voltage_sel = regulator_set_voltage_sel_regmap,
1e1598ed	126	.set_voltage_time_sel = s2mps11_regulator_set_voltage_time_sel,
cb74685e SK	127	};
	128
	129	#define regulator_desc_ldo1(num) { \
	130	.name = "LDO"#num, \
	131	.id = S2MPS11_LDO##num, \
	132	.ops = &s2mps11_ldo_ops, \
	133	.type = REGULATOR_VOLTAGE, \
	134	.owner = THIS_MODULE, \
	135	.min_uV = S2MPS11_LDO_MIN, \
	136	.uV_step = S2MPS11_LDO_STEP1, \
	137	.n_voltages = S2MPS11_LDO_N_VOLTAGES, \
	138	.vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
2693fcab	139	.vsel_mask = S2MPS11_LDO_VSEL_MASK, \
cb74685e SK	140	.enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
	141	.enable_mask = S2MPS11_ENABLE_MASK \
	142	}
	143	#define regulator_desc_ldo2(num) { \
	144	.name = "LDO"#num, \
	145	.id = S2MPS11_LDO##num, \
	146	.ops = &s2mps11_ldo_ops, \
	147	.type = REGULATOR_VOLTAGE, \
	148	.owner = THIS_MODULE, \
	149	.min_uV = S2MPS11_LDO_MIN, \
	150	.uV_step = S2MPS11_LDO_STEP2, \
	151	.n_voltages = S2MPS11_LDO_N_VOLTAGES, \
	152	.vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
2693fcab	153	.vsel_mask = S2MPS11_LDO_VSEL_MASK, \
cb74685e SK	154	.enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
	155	.enable_mask = S2MPS11_ENABLE_MASK \
	156	}
	157
	158	#define regulator_desc_buck1_4(num) { \
	159	.name = "BUCK"#num, \
	160	.id = S2MPS11_BUCK##num, \
	161	.ops = &s2mps11_buck_ops, \
	162	.type = REGULATOR_VOLTAGE, \
	163	.owner = THIS_MODULE, \
	164	.min_uV = S2MPS11_BUCK_MIN1, \
	165	.uV_step = S2MPS11_BUCK_STEP1, \
	166	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348	167	.ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e	168	.vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
2693fcab	169	.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e SK	170	.enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
	171	.enable_mask = S2MPS11_ENABLE_MASK \
	172	}
	173
	174	#define regulator_desc_buck5 { \
	175	.name = "BUCK5", \
	176	.id = S2MPS11_BUCK5, \
	177	.ops = &s2mps11_buck_ops, \
	178	.type = REGULATOR_VOLTAGE, \
	179	.owner = THIS_MODULE, \
	180	.min_uV = S2MPS11_BUCK_MIN1, \
	181	.uV_step = S2MPS11_BUCK_STEP1, \
	182	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348	183	.ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e	184	.vsel_reg = S2MPS11_REG_B5CTRL2, \
2693fcab	185	.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e SK	186	.enable_reg = S2MPS11_REG_B5CTRL1, \
	187	.enable_mask = S2MPS11_ENABLE_MASK \
	188	}
	189
	190	#define regulator_desc_buck6_8(num) { \
	191	.name = "BUCK"#num, \
	192	.id = S2MPS11_BUCK##num, \
	193	.ops = &s2mps11_buck_ops, \
	194	.type = REGULATOR_VOLTAGE, \
	195	.owner = THIS_MODULE, \
	196	.min_uV = S2MPS11_BUCK_MIN1, \
	197	.uV_step = S2MPS11_BUCK_STEP1, \
	198	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348	199	.ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e	200	.vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
2693fcab	201	.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e SK	202	.enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
	203	.enable_mask = S2MPS11_ENABLE_MASK \
	204	}
	205
	206	#define regulator_desc_buck9 { \
	207	.name = "BUCK9", \
	208	.id = S2MPS11_BUCK9, \
	209	.ops = &s2mps11_buck_ops, \
	210	.type = REGULATOR_VOLTAGE, \
	211	.owner = THIS_MODULE, \
	212	.min_uV = S2MPS11_BUCK_MIN3, \
	213	.uV_step = S2MPS11_BUCK_STEP3, \
	214	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348	215	.ramp_delay = S2MPS11_RAMP_DELAY, \
cb74685e	216	.vsel_reg = S2MPS11_REG_B9CTRL2, \
2693fcab	217	.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
cb74685e SK	218	.enable_reg = S2MPS11_REG_B9CTRL1, \
	219	.enable_mask = S2MPS11_ENABLE_MASK \
	220	}
	221
	222	#define regulator_desc_buck10 { \
	223	.name = "BUCK10", \
	224	.id = S2MPS11_BUCK10, \
	225	.ops = &s2mps11_buck_ops, \
	226	.type = REGULATOR_VOLTAGE, \
	227	.owner = THIS_MODULE, \
	228	.min_uV = S2MPS11_BUCK_MIN2, \
	229	.uV_step = S2MPS11_BUCK_STEP2, \
	230	.n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
90068348	231	.ramp_delay = S2MPS11_RAMP_DELAY, \
c76edd52	232	.vsel_reg = S2MPS11_REG_B10CTRL2, \
2693fcab	233	.vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
c76edd52	234	.enable_reg = S2MPS11_REG_B10CTRL1, \
cb74685e SK	235	.enable_mask = S2MPS11_ENABLE_MASK \
	236	}
	237
	238	static struct regulator_desc regulators[] = {
	239	regulator_desc_ldo2(1),
	240	regulator_desc_ldo1(2),
	241	regulator_desc_ldo1(3),
	242	regulator_desc_ldo1(4),
	243	regulator_desc_ldo1(5),
	244	regulator_desc_ldo2(6),
	245	regulator_desc_ldo1(7),
	246	regulator_desc_ldo1(8),
	247	regulator_desc_ldo1(9),
	248	regulator_desc_ldo1(10),
	249	regulator_desc_ldo2(11),
	250	regulator_desc_ldo1(12),
	251	regulator_desc_ldo1(13),
	252	regulator_desc_ldo1(14),
	253	regulator_desc_ldo1(15),
	254	regulator_desc_ldo1(16),
	255	regulator_desc_ldo1(17),
	256	regulator_desc_ldo1(18),
	257	regulator_desc_ldo1(19),
	258	regulator_desc_ldo1(20),
	259	regulator_desc_ldo1(21),
	260	regulator_desc_ldo2(22),
	261	regulator_desc_ldo2(23),
	262	regulator_desc_ldo1(24),
	263	regulator_desc_ldo1(25),
	264	regulator_desc_ldo1(26),
	265	regulator_desc_ldo2(27),
	266	regulator_desc_ldo1(28),
	267	regulator_desc_ldo1(29),
	268	regulator_desc_ldo1(30),
	269	regulator_desc_ldo1(31),
	270	regulator_desc_ldo1(32),
	271	regulator_desc_ldo1(33),
	272	regulator_desc_ldo1(34),
	273	regulator_desc_ldo1(35),
	274	regulator_desc_ldo1(36),
	275	regulator_desc_ldo1(37),
	276	regulator_desc_ldo1(38),
	277	regulator_desc_buck1_4(1),
	278	regulator_desc_buck1_4(2),
	279	regulator_desc_buck1_4(3),
	280	regulator_desc_buck1_4(4),
	281	regulator_desc_buck5,
	282	regulator_desc_buck6_8(6),
	283	regulator_desc_buck6_8(7),
	284	regulator_desc_buck6_8(8),
	285	regulator_desc_buck9,
	286	regulator_desc_buck10,
	287	};
	288
a5023574	289	static int s2mps11_pmic_probe(struct platform_device *pdev)
cb74685e SK	290	{
	291	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
	292	struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
	293	struct regulator_config config = { };
cb74685e	294	struct s2mps11_info *s2mps11;
ad46ed14	295	int i, ret;
cb74685e SK	296	unsigned char ramp_enable, ramp_reg = 0;
	297
	298	if (!pdata) {
	299	dev_err(pdev->dev.parent, "Platform data not supplied\n");
	300	return -ENODEV;
	301	}
	302
	303	s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
	304	GFP_KERNEL);
	305	if (!s2mps11)
	306	return -ENOMEM;
	307
cb74685e SK	308	platform_set_drvdata(pdev, s2mps11);
	309
	310	s2mps11->ramp_delay2 = pdata->buck2_ramp_delay;
	311	s2mps11->ramp_delay34 = pdata->buck34_ramp_delay;
	312	s2mps11->ramp_delay5 = pdata->buck5_ramp_delay;
	313	s2mps11->ramp_delay16 = pdata->buck16_ramp_delay;
	314	s2mps11->ramp_delay7810 = pdata->buck7810_ramp_delay;
	315	s2mps11->ramp_delay9 = pdata->buck9_ramp_delay;
	316
	317	s2mps11->buck6_ramp = pdata->buck6_ramp_enable;
	318	s2mps11->buck2_ramp = pdata->buck2_ramp_enable;
	319	s2mps11->buck3_ramp = pdata->buck3_ramp_enable;
	320	s2mps11->buck4_ramp = pdata->buck4_ramp_enable;
	321
	322	ramp_enable = (s2mps11->buck2_ramp << 3) \| (s2mps11->buck3_ramp << 2) \|
	323	(s2mps11->buck4_ramp << 1) \| s2mps11->buck6_ramp ;
	324
	325	if (ramp_enable) {
	326	if (s2mps11->buck2_ramp)
f7ebaaeb	327	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay2) << 6;
cb74685e	328	if (s2mps11->buck3_ramp \|\| s2mps11->buck4_ramp)
f7ebaaeb	329	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay34) << 4;
c06eed39	330	sec_reg_write(iodev, S2MPS11_REG_RAMP, ramp_reg \| ramp_enable);
cb74685e SK	331	}
	332
	333	ramp_reg &= 0x00;
f7ebaaeb SK	334	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay5) << 6;
	335	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay16) << 4;
	336	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay7810) << 2;
cb74685e	337	ramp_reg \|= get_ramp_delay(s2mps11->ramp_delay9);
c06eed39	338	sec_reg_write(iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg);
cb74685e SK	339
	340	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {
	341
232b2504	342	config.dev = &pdev->dev;
cb74685e SK	343	config.regmap = iodev->regmap;
	344	config.init_data = pdata->regulators[i].initdata;
	345	config.driver_data = s2mps11;
	346
ad46ed14 AL	347	s2mps11->rdev[i] = regulator_register(&regulators[i], &config);
	348	if (IS_ERR(s2mps11->rdev[i])) {
	349	ret = PTR_ERR(s2mps11->rdev[i]);
232b2504 AL	350	dev_err(&pdev->dev, "regulator init failed for %d\n",
232b2504 AL	351	i);
ad46ed14	352	s2mps11->rdev[i] = NULL;
cb74685e SK	353	goto err;
	354	}
	355	}
	356
	357	return 0;
	358	err:
	359	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
ad46ed14	360	regulator_unregister(s2mps11->rdev[i]);
cb74685e SK	361
	362	return ret;
	363	}
	364
8dc995f5	365	static int s2mps11_pmic_remove(struct platform_device *pdev)
cb74685e SK	366	{
cb74685e SK	367	struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
cb74685e SK	368	int i;
	369
	370	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
ad46ed14	371	regulator_unregister(s2mps11->rdev[i]);
cb74685e SK	372
	373	return 0;
	374	}
	375
	376	static const struct platform_device_id s2mps11_pmic_id[] = {
	377	{ "s2mps11-pmic", 0},
	378	{ },
	379	};
	380	MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
	381
	382	static struct platform_driver s2mps11_pmic_driver = {
	383	.driver = {
	384	.name = "s2mps11-pmic",
	385	.owner = THIS_MODULE,
	386	},
	387	.probe = s2mps11_pmic_probe,
5eb9f2b9	388	.remove = s2mps11_pmic_remove,
cb74685e SK	389	.id_table = s2mps11_pmic_id,
	390	};
	391
	392	static int __init s2mps11_pmic_init(void)
	393	{
	394	return platform_driver_register(&s2mps11_pmic_driver);
	395	}
	396	subsys_initcall(s2mps11_pmic_init);
	397
	398	static void __exit s2mps11_pmic_exit(void)
	399	{
	400	platform_driver_unregister(&s2mps11_pmic_driver);
	401	}
	402	module_exit(s2mps11_pmic_exit);
	403
	404	/* Module information */
	405	MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
	406	MODULE_DESCRIPTION("SAMSUNG S2MPS11 Regulator Driver");
	407	MODULE_LICENSE("GPL");