[linux-2.6-block.git] / drivers / regulator / tps65218-regulator.c

/*
 * tps65218-regulator.c
 *
 * Regulator driver for TPS65218 PMIC
 *
 * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether expressed or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License version 2 for more details.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65218.h>

enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
			   DCDC5, DCDC6, LDO1, LS3 };

#define TPS65218_REGULATOR(_name, _id, _type, _ops, _n, _vr, _vm, _er, _em, \
			    _cr, _cm, _lr, _nlr, _delay, _fuv)		\
	{							\
		.name			= _name,		\
		.id			= _id,			\
		.ops			= &_ops,		\
		.n_voltages		= _n,			\
		.type			= _type,	\
		.owner			= THIS_MODULE,		\
		.vsel_reg		= _vr,			\
		.vsel_mask		= _vm,			\
		.csel_reg		= _cr,			\
		.csel_mask		= _cm,			\
		.enable_reg		= _er,			\
		.enable_mask		= _em,			\
		.volt_table		= NULL,			\
		.linear_ranges		= _lr,			\
		.n_linear_ranges	= _nlr,			\
		.ramp_delay		= _delay,		\
		.fixed_uV		= _fuv			\
	}							\

#define TPS65218_INFO(_id, _nm, _min, _max)	\
	[_id] = {					\
		.id		= _id,			\
		.name		= _nm,			\
		.min_uV		= _min,			\
		.max_uV		= _max,			\
	}

static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
	REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
	REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
};

static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
	REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
	REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
};

static const struct regulator_linear_range dcdc4_ranges[] = {
	REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
	REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
};

static struct tps_info tps65218_pmic_regs[] = {
	TPS65218_INFO(DCDC1, "DCDC1", 850000, 1675000),
	TPS65218_INFO(DCDC2, "DCDC2", 850000, 1675000),
	TPS65218_INFO(DCDC3, "DCDC3", 900000, 3400000),
	TPS65218_INFO(DCDC4, "DCDC4", 1175000, 3400000),
	TPS65218_INFO(DCDC5, "DCDC5", 1000000, 1000000),
	TPS65218_INFO(DCDC6, "DCDC6", 1800000, 1800000),
	TPS65218_INFO(LDO1, "LDO1", 900000, 3400000),
	TPS65218_INFO(LS3, "LS3", -1, -1),
};

#define TPS65218_OF_MATCH(comp, label) \
	{ \
		.compatible = comp, \
		.data = &label, \
	}

static const struct of_device_id tps65218_of_match[] = {
	TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
	TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
	TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
	TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
	TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
	TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
	TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
	TPS65218_OF_MATCH("ti,tps65218-ls3", tps65218_pmic_regs[LS3]),
	{ }
};
MODULE_DEVICE_TABLE(of, tps65218_of_match);

static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
					 unsigned selector)
{
	int ret;
	struct tps65218 *tps = rdev_get_drvdata(dev);
	unsigned int rid = rdev_get_id(dev);

	/* Set the voltage based on vsel value and write protect level is 2 */
	ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
				selector, TPS65218_PROTECT_L1);

	/* Set GO bit for DCDC1/2 to initiate voltage transistion */
	switch (rid) {
	case TPS65218_DCDC_1:
	case TPS65218_DCDC_2:
		ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
					TPS65218_SLEW_RATE_GO,
					TPS65218_SLEW_RATE_GO,
					TPS65218_PROTECT_L1);
		break;
	}

	return ret;
}

static int tps65218_pmic_enable(struct regulator_dev *dev)
{
	struct tps65218 *tps = rdev_get_drvdata(dev);
	int rid = rdev_get_id(dev);

	if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
		return -EINVAL;

	/* Enable the regulator and password protection is level 1 */
	return tps65218_set_bits(tps, dev->desc->enable_reg,
				 dev->desc->enable_mask, dev->desc->enable_mask,
				 TPS65218_PROTECT_L1);
}

static int tps65218_pmic_disable(struct regulator_dev *dev)
{
	struct tps65218 *tps = rdev_get_drvdata(dev);
	int rid = rdev_get_id(dev);

	if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
		return -EINVAL;

	/* Disable the regulator and password protection is level 1 */
	return tps65218_clear_bits(tps, dev->desc->enable_reg,
				   dev->desc->enable_mask, TPS65218_PROTECT_L1);
}

/* Operations permitted on DCDC1, DCDC2 */
static struct regulator_ops tps65218_dcdc12_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= tps65218_pmic_enable,
	.disable		= tps65218_pmic_disable,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= tps65218_pmic_set_voltage_sel,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
};

/* Operations permitted on DCDC3, DCDC4 and LDO1 */
static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= tps65218_pmic_enable,
	.disable		= tps65218_pmic_disable,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= tps65218_pmic_set_voltage_sel,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
};

static const int ls3_currents[] = { 100, 200, 500, 1000 };

static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
					       int lim_uA)
{
	unsigned int index = 0;
	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
	struct tps65218 *tps = rdev_get_drvdata(dev);

	while (index < num_currents && ls3_currents[index] != lim_uA)
		index++;

	if (index == num_currents)
		return -EINVAL;

	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
				 index << 2, TPS65218_PROTECT_L1);
}

static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
					   int min_uA, int max_uA)
{
	int index = 0;
	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
	struct tps65218 *tps = rdev_get_drvdata(dev);

	while (index < num_currents && ls3_currents[index] < max_uA)
		index++;

	index--;

	if (index < 0 || ls3_currents[index] < min_uA)
		return -EINVAL;

	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
				 index << 2, TPS65218_PROTECT_L1);
}

static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
{
	int retval;
	unsigned int index;
	struct tps65218 *tps = rdev_get_drvdata(dev);

	retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
	if (retval < 0)
		return retval;

	index = (index & dev->desc->csel_mask) >> 2;

	return ls3_currents[index];
}

static struct regulator_ops tps65218_ls3_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= tps65218_pmic_enable,
	.disable		= tps65218_pmic_disable,
	.set_input_current_limit = tps65218_pmic_set_input_current_lim,
	.set_current_limit	= tps65218_pmic_set_current_limit,
	.get_current_limit	= tps65218_pmic_get_current_limit,
};

/* Operations permitted on DCDC5, DCDC6 */
static struct regulator_ops tps65218_dcdc56_pmic_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= tps65218_pmic_enable,
	.disable		= tps65218_pmic_disable,
};

static const struct regulator_desc regulators[] = {
	TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, REGULATOR_VOLTAGE,
			   tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC1,
			   TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
			   TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
			   2, 4000, 0),
	TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, REGULATOR_VOLTAGE,
			   tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC2,
			   TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
			   TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
			   2, 4000, 0),
	TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, REGULATOR_VOLTAGE,
			   tps65218_ldo1_dcdc34_ops, 64,
			   TPS65218_REG_CONTROL_DCDC3,
			   TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
			   TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
			   0, 0),
	TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, REGULATOR_VOLTAGE,
			   tps65218_ldo1_dcdc34_ops, 53,
			   TPS65218_REG_CONTROL_DCDC4,
			   TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
			   TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
			   0, 0),
	TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, REGULATOR_VOLTAGE,
			   tps65218_dcdc56_pmic_ops, 1, -1, -1,
			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0, 0,
			   NULL, 0, 0, 1000000),
	TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, REGULATOR_VOLTAGE,
			   tps65218_dcdc56_pmic_ops, 1, -1, -1,
			   TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0, 0,
			   NULL, 0, 0, 1800000),
	TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, REGULATOR_VOLTAGE,
			   tps65218_ldo1_dcdc34_ops, 64,
			   TPS65218_REG_CONTROL_LDO1,
			   TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
			   TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
			   2, 0, 0),
	TPS65218_REGULATOR("LS3", TPS65218_LS_3, REGULATOR_CURRENT,
			   tps65218_ls3_ops, 0, 0, 0, TPS65218_REG_ENABLE2,
			   TPS65218_ENABLE2_LS3_EN, TPS65218_REG_CONFIG2,
			   TPS65218_CONFIG2_LS3ILIM_MASK, NULL, 0, 0, 0),
};

static int tps65218_regulator_probe(struct platform_device *pdev)
{
	struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
	struct regulator_init_data *init_data;
	const struct tps_info	*template;
	struct regulator_dev *rdev;
	const struct of_device_id	*match;
	struct regulator_config config = { };
	int id;

	match = of_match_device(tps65218_of_match, &pdev->dev);
	if (!match)
		return -ENODEV;

	template = match->data;
	id = template->id;
	init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
					       &regulators[id]);

	platform_set_drvdata(pdev, tps);

	tps->info[id] = &tps65218_pmic_regs[id];
	config.dev = &pdev->dev;
	config.init_data = init_data;
	config.driver_data = tps;
	config.regmap = tps->regmap;
	config.of_node = pdev->dev.of_node;

	rdev = devm_regulator_register(&pdev->dev, &regulators[id], &config);
	if (IS_ERR(rdev)) {
		dev_err(tps->dev, "failed to register %s regulator\n",
			pdev->name);
		return PTR_ERR(rdev);
	}

	return 0;
}

static struct platform_driver tps65218_regulator_driver = {
	.driver = {
		.name = "tps65218-pmic",
		.of_match_table = tps65218_of_match,
	},
	.probe = tps65218_regulator_probe,
};

module_platform_driver(tps65218_regulator_driver);

MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
MODULE_ALIAS("platform:tps65218-pmic");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
90e7d526 K	1	/*
	2	* tps65218-regulator.c
	3	*
	4	* Regulator driver for TPS65218 PMIC
	5	*
	6	* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*
	12	* This program is distributed "as is" WITHOUT ANY WARRANTY of any
	13	* kind, whether expressed or implied; without even the implied warranty
	14	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License version 2 for more details.
	16	*/
	17
	18	#include <linux/kernel.h>
	19	#include <linux/module.h>
	20	#include <linux/device.h>
	21	#include <linux/init.h>
	22	#include <linux/err.h>
	23	#include <linux/platform_device.h>
	24	#include <linux/of_device.h>
	25	#include <linux/regulator/of_regulator.h>
	26	#include <linux/regulator/driver.h>
	27	#include <linux/regulator/machine.h>
	28	#include <linux/mfd/tps65218.h>
	29
c0ea88b8 NK	30	enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
c0ea88b8 NK	31	DCDC5, DCDC6, LDO1, LS3 };
90e7d526	32
c0ea88b8 NK	33	#define TPS65218_REGULATOR(_name, _id, _type, _ops, _n, _vr, _vm, _er, _em, \
c0ea88b8 NK	34	_cr, _cm, _lr, _nlr, _delay, _fuv) \
90e7d526 K	35	{ \
	36	.name = _name, \
	37	.id = _id, \
	38	.ops = &_ops, \
	39	.n_voltages = _n, \
c0ea88b8	40	.type = _type, \
90e7d526 K	41	.owner = THIS_MODULE, \
	42	.vsel_reg = _vr, \
	43	.vsel_mask = _vm, \
c0ea88b8 NK	44	.csel_reg = _cr, \
c0ea88b8 NK	45	.csel_mask = _cm, \
90e7d526 K	46	.enable_reg = _er, \
90e7d526 K	47	.enable_mask = _em, \
dd648ef2	48	.volt_table = NULL, \
90e7d526 K	49	.linear_ranges = _lr, \
90e7d526 K	50	.n_linear_ranges = _nlr, \
5ab9be42	51	.ramp_delay = _delay, \
7753d2d4	52	.fixed_uV = _fuv \
90e7d526 K	53	} \
	54
	55	#define TPS65218_INFO(_id, _nm, _min, _max) \
6a5e06d9	56	[_id] = { \
90e7d526 K	57	.id = _id, \
	58	.name = _nm, \
	59	.min_uV = _min, \
	60	.max_uV = _max, \
	61	}
	62
	63	static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
	64	REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
	65	REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
	66	};
	67
	68	static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
	69	REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
	70	REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
	71	};
	72
	73	static const struct regulator_linear_range dcdc4_ranges[] = {
	74	REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
42ab0f39	75	REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
90e7d526 K	76	};
	77
	78	static struct tps_info tps65218_pmic_regs[] = {
0f1d08dd	79	TPS65218_INFO(DCDC1, "DCDC1", 850000, 1675000),
6a5e06d9 FB	80	TPS65218_INFO(DCDC2, "DCDC2", 850000, 1675000),
	81	TPS65218_INFO(DCDC3, "DCDC3", 900000, 3400000),
	82	TPS65218_INFO(DCDC4, "DCDC4", 1175000, 3400000),
	83	TPS65218_INFO(DCDC5, "DCDC5", 1000000, 1000000),
	84	TPS65218_INFO(DCDC6, "DCDC6", 1800000, 1800000),
	85	TPS65218_INFO(LDO1, "LDO1", 900000, 3400000),
c0ea88b8	86	TPS65218_INFO(LS3, "LS3", -1, -1),
90e7d526 K	87	};
	88
	89	#define TPS65218_OF_MATCH(comp, label) \
	90	{ \
	91	.compatible = comp, \
	92	.data = &label, \
	93	}
	94
	95	static const struct of_device_id tps65218_of_match[] = {
	96	TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
	97	TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
	98	TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
	99	TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
	100	TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
	101	TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
	102	TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
c0ea88b8	103	TPS65218_OF_MATCH("ti,tps65218-ls3", tps65218_pmic_regs[LS3]),
c46b5295	104	{ }
90e7d526 K	105	};
	106	MODULE_DEVICE_TABLE(of, tps65218_of_match);
	107
	108	static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
	109	unsigned selector)
	110	{
	111	int ret;
	112	struct tps65218 *tps = rdev_get_drvdata(dev);
	113	unsigned int rid = rdev_get_id(dev);
	114
	115	/* Set the voltage based on vsel value and write protect level is 2 */
	116	ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
	117	selector, TPS65218_PROTECT_L1);
	118
	119	/* Set GO bit for DCDC1/2 to initiate voltage transistion */
	120	switch (rid) {
	121	case TPS65218_DCDC_1:
	122	case TPS65218_DCDC_2:
	123	ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
	124	TPS65218_SLEW_RATE_GO,
	125	TPS65218_SLEW_RATE_GO,
	126	TPS65218_PROTECT_L1);
	127	break;
	128	}
	129
	130	return ret;
	131	}
	132
	133	static int tps65218_pmic_enable(struct regulator_dev *dev)
	134	{
	135	struct tps65218 *tps = rdev_get_drvdata(dev);
5f986f7c	136	int rid = rdev_get_id(dev);
90e7d526 K	137
	138	if (rid < TPS65218_DCDC_1 \|\| rid > TPS65218_LDO_1)
	139	return -EINVAL;
	140
	141	/* Enable the regulator and password protection is level 1 */
	142	return tps65218_set_bits(tps, dev->desc->enable_reg,
	143	dev->desc->enable_mask, dev->desc->enable_mask,
	144	TPS65218_PROTECT_L1);
	145	}
	146
	147	static int tps65218_pmic_disable(struct regulator_dev *dev)
	148	{
	149	struct tps65218 *tps = rdev_get_drvdata(dev);
5f986f7c	150	int rid = rdev_get_id(dev);
90e7d526 K	151
	152	if (rid < TPS65218_DCDC_1 \|\| rid > TPS65218_LDO_1)
	153	return -EINVAL;
	154
	155	/* Disable the regulator and password protection is level 1 */
	156	return tps65218_clear_bits(tps, dev->desc->enable_reg,
	157	dev->desc->enable_mask, TPS65218_PROTECT_L1);
	158	}
	159
90e7d526 K	160	/* Operations permitted on DCDC1, DCDC2 */
	161	static struct regulator_ops tps65218_dcdc12_ops = {
	162	.is_enabled = regulator_is_enabled_regmap,
	163	.enable = tps65218_pmic_enable,
	164	.disable = tps65218_pmic_disable,
	165	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	166	.set_voltage_sel = tps65218_pmic_set_voltage_sel,
	167	.list_voltage = regulator_list_voltage_linear_range,
	168	.map_voltage = regulator_map_voltage_linear_range,
5ab9be42	169	.set_voltage_time_sel = regulator_set_voltage_time_sel,
90e7d526 K	170	};
	171
	172	/* Operations permitted on DCDC3, DCDC4 and LDO1 */
	173	static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
	174	.is_enabled = regulator_is_enabled_regmap,
	175	.enable = tps65218_pmic_enable,
	176	.disable = tps65218_pmic_disable,
	177	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	178	.set_voltage_sel = tps65218_pmic_set_voltage_sel,
	179	.list_voltage = regulator_list_voltage_linear_range,
	180	.map_voltage = regulator_map_voltage_linear_range,
	181	};
	182
c0ea88b8 NK	183	static const int ls3_currents[] = { 100, 200, 500, 1000 };
	184
	185	static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
	186	int lim_uA)
	187	{
	188	unsigned int index = 0;
	189	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
	190	struct tps65218 *tps = rdev_get_drvdata(dev);
	191
	192	while (index < num_currents && ls3_currents[index] != lim_uA)
	193	index++;
	194
	195	if (index == num_currents)
	196	return -EINVAL;
	197
	198	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
	199	index << 2, TPS65218_PROTECT_L1);
	200	}
	201
	202	static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
	203	int min_uA, int max_uA)
	204	{
	205	int index = 0;
	206	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
	207	struct tps65218 *tps = rdev_get_drvdata(dev);
	208
	209	while (index < num_currents && ls3_currents[index] < max_uA)
	210	index++;
	211
	212	index--;
	213
	214	if (index < 0 \|\| ls3_currents[index] < min_uA)
	215	return -EINVAL;
	216
	217	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
	218	index << 2, TPS65218_PROTECT_L1);
	219	}
	220
	221	static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
	222	{
	223	int retval;
	224	unsigned int index;
	225	struct tps65218 *tps = rdev_get_drvdata(dev);
	226
	227	retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
	228	if (retval < 0)
	229	return retval;
	230
	231	index = (index & dev->desc->csel_mask) >> 2;
	232
	233	return ls3_currents[index];
	234	}
	235
	236	static struct regulator_ops tps65218_ls3_ops = {
	237	.is_enabled = regulator_is_enabled_regmap,
	238	.enable = tps65218_pmic_enable,
	239	.disable = tps65218_pmic_disable,
	240	.set_input_current_limit = tps65218_pmic_set_input_current_lim,
	241	.set_current_limit = tps65218_pmic_set_current_limit,
	242	.get_current_limit = tps65218_pmic_get_current_limit,
	243	};
	244
90e7d526 K	245	/* Operations permitted on DCDC5, DCDC6 */
	246	static struct regulator_ops tps65218_dcdc56_pmic_ops = {
	247	.is_enabled = regulator_is_enabled_regmap,
	248	.enable = tps65218_pmic_enable,
	249	.disable = tps65218_pmic_disable,
	250	};
	251
	252	static const struct regulator_desc regulators[] = {
c0ea88b8 NK	253	TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, REGULATOR_VOLTAGE,
	254	tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC1,
	255	TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
	256	TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
	257	2, 4000, 0),
	258	TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, REGULATOR_VOLTAGE,
	259	tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC2,
	260	TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
	261	TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
	262	2, 4000, 0),
	263	TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, REGULATOR_VOLTAGE,
	264	tps65218_ldo1_dcdc34_ops, 64,
	265	TPS65218_REG_CONTROL_DCDC3,
90e7d526	266	TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
c0ea88b8 NK	267	TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
	268	0, 0),
	269	TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, REGULATOR_VOLTAGE,
	270	tps65218_ldo1_dcdc34_ops, 53,
	271	TPS65218_REG_CONTROL_DCDC4,
	272	TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
	273	TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
	274	0, 0),
	275	TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, REGULATOR_VOLTAGE,
	276	tps65218_dcdc56_pmic_ops, 1, -1, -1,
	277	TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0, 0,
	278	NULL, 0, 0, 1000000),
	279	TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, REGULATOR_VOLTAGE,
	280	tps65218_dcdc56_pmic_ops, 1, -1, -1,
	281	TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0, 0,
	282	NULL, 0, 0, 1800000),
	283	TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, REGULATOR_VOLTAGE,
	284	tps65218_ldo1_dcdc34_ops, 64,
0eada6a1	285	TPS65218_REG_CONTROL_LDO1,
90e7d526	286	TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
c0ea88b8	287	TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
7753d2d4	288	2, 0, 0),
c0ea88b8 NK	289	TPS65218_REGULATOR("LS3", TPS65218_LS_3, REGULATOR_CURRENT,
	290	tps65218_ls3_ops, 0, 0, 0, TPS65218_REG_ENABLE2,
	291	TPS65218_ENABLE2_LS3_EN, TPS65218_REG_CONFIG2,
	292	TPS65218_CONFIG2_LS3ILIM_MASK, NULL, 0, 0, 0),
90e7d526 K	293	};
	294
	295	static int tps65218_regulator_probe(struct platform_device *pdev)
	296	{
	297	struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
	298	struct regulator_init_data *init_data;
	299	const struct tps_info *template;
	300	struct regulator_dev *rdev;
	301	const struct of_device_id *match;
	302	struct regulator_config config = { };
	303	int id;
	304
	305	match = of_match_device(tps65218_of_match, &pdev->dev);
948838a1	306	if (!match)
90e7d526	307	return -ENODEV;
948838a1 AL	308
	309	template = match->data;
	310	id = template->id;
072e78b1 JMC	311	init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
072e78b1 JMC	312	&regulators[id]);
90e7d526 K	313
	314	platform_set_drvdata(pdev, tps);
	315
	316	tps->info[id] = &tps65218_pmic_regs[id];
	317	config.dev = &pdev->dev;
	318	config.init_data = init_data;
	319	config.driver_data = tps;
	320	config.regmap = tps->regmap;
d2fa87c3	321	config.of_node = pdev->dev.of_node;
90e7d526 K	322
	323	rdev = devm_regulator_register(&pdev->dev, &regulators[id], &config);
	324	if (IS_ERR(rdev)) {
	325	dev_err(tps->dev, "failed to register %s regulator\n",
	326	pdev->name);
	327	return PTR_ERR(rdev);
	328	}
	329
90e7d526 K	330	return 0;
	331	}
	332
	333	static struct platform_driver tps65218_regulator_driver = {
	334	.driver = {
	335	.name = "tps65218-pmic",
948838a1	336	.of_match_table = tps65218_of_match,
90e7d526 K	337	},
90e7d526 K	338	.probe = tps65218_regulator_probe,
90e7d526 K	339	};
	340
	341	module_platform_driver(tps65218_regulator_driver);
	342
	343	MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
	344	MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
	345	MODULE_ALIAS("platform:tps65218-pmic");
	346	MODULE_LICENSE("GPL v2");