[deliverable/linux.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, _sr, _sm)	\
	{							\
		.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,			\
		.bypass_reg	= _sr,				\
		.bypass_mask	= _sm,				\
	}							\

#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);
}

static int tps65218_pmic_set_suspend_enable(struct regulator_dev *dev)
{
	struct tps65218 *tps = rdev_get_drvdata(dev);
	unsigned int rid = rdev_get_id(dev);

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

	return tps65218_clear_bits(tps, dev->desc->bypass_reg,
				   dev->desc->bypass_mask,
				   TPS65218_PROTECT_L1);
}

static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
{
	struct tps65218 *tps = rdev_get_drvdata(dev);
	unsigned int rid = rdev_get_id(dev);

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

	if (!tps->info[rid]->strobe) {
		if (rid == TPS65218_DCDC_3)
			tps->info[rid]->strobe = 3;
		else
			return -EINVAL;
	}

	return tps65218_set_bits(tps, dev->desc->bypass_reg,
				 dev->desc->bypass_mask,
				 tps->info[rid]->strobe,
				 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,
	.set_suspend_enable	= tps65218_pmic_set_suspend_enable,
	.set_suspend_disable	= tps65218_pmic_set_suspend_disable,
};

/* 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,
	.set_suspend_enable	= tps65218_pmic_set_suspend_enable,
	.set_suspend_disable	= tps65218_pmic_set_suspend_disable,
};

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,
	.set_suspend_enable	= tps65218_pmic_set_suspend_enable,
	.set_suspend_disable	= tps65218_pmic_set_suspend_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_REG_SEQ3,
			   TPS65218_SEQ3_DC1_SEQ_MASK),
	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_REG_SEQ3,
			   TPS65218_SEQ3_DC2_SEQ_MASK),
	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_REG_SEQ4, TPS65218_SEQ4_DC3_SEQ_MASK),
	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_REG_SEQ4, TPS65218_SEQ4_DC4_SEQ_MASK),
	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_REG_SEQ5,
			   TPS65218_SEQ5_DC5_SEQ_MASK),
	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_REG_SEQ5,
			   TPS65218_SEQ5_DC6_SEQ_MASK),
	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_REG_SEQ6,
			   TPS65218_SEQ6_LDO1_SEQ_MASK),
	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, 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, ret;
	unsigned int val;

	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);
	}

	ret = tps65218_reg_read(tps, regulators[id].bypass_reg, &val);
	if (ret)
		return ret;

	tps->info[id]->strobe = val & regulators[id].bypass_mask;

	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	33	#define TPS65218_REGULATOR(_name, _id, _type, _ops, _n, _vr, _vm, _er, _em, \
b9a0d359	34	_cr, _cm, _lr, _nlr, _delay, _fuv, _sr, _sm) \
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, \
b9a0d359 TK	52	.fixed_uV = _fuv, \
	53	.bypass_reg = _sr, \
	54	.bypass_mask = _sm, \
90e7d526 K	55	} \
	56
	57	#define TPS65218_INFO(_id, _nm, _min, _max) \
6a5e06d9	58	[_id] = { \
90e7d526 K	59	.id = _id, \
	60	.name = _nm, \
	61	.min_uV = _min, \
	62	.max_uV = _max, \
	63	}
	64
	65	static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
	66	REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
	67	REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
	68	};
	69
	70	static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
	71	REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
	72	REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
	73	};
	74
	75	static const struct regulator_linear_range dcdc4_ranges[] = {
	76	REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
42ab0f39	77	REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
90e7d526 K	78	};
	79
	80	static struct tps_info tps65218_pmic_regs[] = {
0f1d08dd	81	TPS65218_INFO(DCDC1, "DCDC1", 850000, 1675000),
6a5e06d9 FB	82	TPS65218_INFO(DCDC2, "DCDC2", 850000, 1675000),
	83	TPS65218_INFO(DCDC3, "DCDC3", 900000, 3400000),
	84	TPS65218_INFO(DCDC4, "DCDC4", 1175000, 3400000),
	85	TPS65218_INFO(DCDC5, "DCDC5", 1000000, 1000000),
	86	TPS65218_INFO(DCDC6, "DCDC6", 1800000, 1800000),
	87	TPS65218_INFO(LDO1, "LDO1", 900000, 3400000),
c0ea88b8	88	TPS65218_INFO(LS3, "LS3", -1, -1),
90e7d526 K	89	};
	90
	91	#define TPS65218_OF_MATCH(comp, label) \
	92	{ \
	93	.compatible = comp, \
	94	.data = &label, \
	95	}
	96
	97	static const struct of_device_id tps65218_of_match[] = {
	98	TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
	99	TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
	100	TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
	101	TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
	102	TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
	103	TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
	104	TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
c0ea88b8	105	TPS65218_OF_MATCH("ti,tps65218-ls3", tps65218_pmic_regs[LS3]),
c46b5295	106	{ }
90e7d526 K	107	};
	108	MODULE_DEVICE_TABLE(of, tps65218_of_match);
	109
	110	static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
	111	unsigned selector)
	112	{
	113	int ret;
	114	struct tps65218 *tps = rdev_get_drvdata(dev);
	115	unsigned int rid = rdev_get_id(dev);
	116
	117	/* Set the voltage based on vsel value and write protect level is 2 */
	118	ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
	119	selector, TPS65218_PROTECT_L1);
	120
	121	/* Set GO bit for DCDC1/2 to initiate voltage transistion */
	122	switch (rid) {
	123	case TPS65218_DCDC_1:
	124	case TPS65218_DCDC_2:
	125	ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
	126	TPS65218_SLEW_RATE_GO,
	127	TPS65218_SLEW_RATE_GO,
	128	TPS65218_PROTECT_L1);
	129	break;
	130	}
	131
	132	return ret;
	133	}
	134
	135	static int tps65218_pmic_enable(struct regulator_dev *dev)
	136	{
	137	struct tps65218 *tps = rdev_get_drvdata(dev);
5f986f7c	138	int rid = rdev_get_id(dev);
90e7d526 K	139
	140	if (rid < TPS65218_DCDC_1 \|\| rid > TPS65218_LDO_1)
	141	return -EINVAL;
	142
	143	/* Enable the regulator and password protection is level 1 */
	144	return tps65218_set_bits(tps, dev->desc->enable_reg,
	145	dev->desc->enable_mask, dev->desc->enable_mask,
	146	TPS65218_PROTECT_L1);
	147	}
	148
	149	static int tps65218_pmic_disable(struct regulator_dev *dev)
	150	{
	151	struct tps65218 *tps = rdev_get_drvdata(dev);
5f986f7c	152	int rid = rdev_get_id(dev);
90e7d526 K	153
	154	if (rid < TPS65218_DCDC_1 \|\| rid > TPS65218_LDO_1)
	155	return -EINVAL;
	156
	157	/* Disable the regulator and password protection is level 1 */
	158	return tps65218_clear_bits(tps, dev->desc->enable_reg,
	159	dev->desc->enable_mask, TPS65218_PROTECT_L1);
	160	}
	161
b9a0d359 TK	162	static int tps65218_pmic_set_suspend_enable(struct regulator_dev *dev)
	163	{
	164	struct tps65218 *tps = rdev_get_drvdata(dev);
	165	unsigned int rid = rdev_get_id(dev);
	166
	167	if (rid < TPS65218_DCDC_1 \|\| rid > TPS65218_LDO_1)
	168	return -EINVAL;
	169
	170	return tps65218_clear_bits(tps, dev->desc->bypass_reg,
	171	dev->desc->bypass_mask,
	172	TPS65218_PROTECT_L1);
	173	}
	174
	175	static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
	176	{
	177	struct tps65218 *tps = rdev_get_drvdata(dev);
	178	unsigned int rid = rdev_get_id(dev);
	179
	180	if (rid < TPS65218_DCDC_1 \|\| rid > TPS65218_LDO_1)
	181	return -EINVAL;
	182
3fb2ef11 TK	183	if (!tps->info[rid]->strobe) {
	184	if (rid == TPS65218_DCDC_3)
	185	tps->info[rid]->strobe = 3;
	186	else
	187	return -EINVAL;
	188	}
b9a0d359 TK	189
	190	return tps65218_set_bits(tps, dev->desc->bypass_reg,
	191	dev->desc->bypass_mask,
	192	tps->info[rid]->strobe,
	193	TPS65218_PROTECT_L1);
	194	}
	195
90e7d526 K	196	/* Operations permitted on DCDC1, DCDC2 */
	197	static struct regulator_ops tps65218_dcdc12_ops = {
	198	.is_enabled = regulator_is_enabled_regmap,
	199	.enable = tps65218_pmic_enable,
	200	.disable = tps65218_pmic_disable,
	201	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	202	.set_voltage_sel = tps65218_pmic_set_voltage_sel,
	203	.list_voltage = regulator_list_voltage_linear_range,
	204	.map_voltage = regulator_map_voltage_linear_range,
5ab9be42	205	.set_voltage_time_sel = regulator_set_voltage_time_sel,
b9a0d359 TK	206	.set_suspend_enable = tps65218_pmic_set_suspend_enable,
b9a0d359 TK	207	.set_suspend_disable = tps65218_pmic_set_suspend_disable,
90e7d526 K	208	};
	209
	210	/* Operations permitted on DCDC3, DCDC4 and LDO1 */
	211	static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
	212	.is_enabled = regulator_is_enabled_regmap,
	213	.enable = tps65218_pmic_enable,
	214	.disable = tps65218_pmic_disable,
	215	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	216	.set_voltage_sel = tps65218_pmic_set_voltage_sel,
	217	.list_voltage = regulator_list_voltage_linear_range,
	218	.map_voltage = regulator_map_voltage_linear_range,
b9a0d359 TK	219	.set_suspend_enable = tps65218_pmic_set_suspend_enable,
b9a0d359 TK	220	.set_suspend_disable = tps65218_pmic_set_suspend_disable,
90e7d526 K	221	};
90e7d526 K	222
c0ea88b8 NK	223	static const int ls3_currents[] = { 100, 200, 500, 1000 };
	224
	225	static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
	226	int lim_uA)
	227	{
	228	unsigned int index = 0;
	229	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
	230	struct tps65218 *tps = rdev_get_drvdata(dev);
	231
	232	while (index < num_currents && ls3_currents[index] != lim_uA)
	233	index++;
	234
	235	if (index == num_currents)
	236	return -EINVAL;
	237
	238	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
	239	index << 2, TPS65218_PROTECT_L1);
	240	}
	241
	242	static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
	243	int min_uA, int max_uA)
	244	{
	245	int index = 0;
	246	unsigned int num_currents = ARRAY_SIZE(ls3_currents);
	247	struct tps65218 *tps = rdev_get_drvdata(dev);
	248
	249	while (index < num_currents && ls3_currents[index] < max_uA)
	250	index++;
	251
	252	index--;
	253
	254	if (index < 0 \|\| ls3_currents[index] < min_uA)
	255	return -EINVAL;
	256
	257	return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
	258	index << 2, TPS65218_PROTECT_L1);
	259	}
	260
	261	static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
	262	{
	263	int retval;
	264	unsigned int index;
	265	struct tps65218 *tps = rdev_get_drvdata(dev);
	266
	267	retval = tps65218_reg_read(tps, dev->desc->csel_reg, &index);
	268	if (retval < 0)
	269	return retval;
	270
	271	index = (index & dev->desc->csel_mask) >> 2;
	272
	273	return ls3_currents[index];
	274	}
	275
	276	static struct regulator_ops tps65218_ls3_ops = {
	277	.is_enabled = regulator_is_enabled_regmap,
	278	.enable = tps65218_pmic_enable,
	279	.disable = tps65218_pmic_disable,
	280	.set_input_current_limit = tps65218_pmic_set_input_current_lim,
	281	.set_current_limit = tps65218_pmic_set_current_limit,
	282	.get_current_limit = tps65218_pmic_get_current_limit,
	283	};
	284
90e7d526 K	285	/* Operations permitted on DCDC5, DCDC6 */
	286	static struct regulator_ops tps65218_dcdc56_pmic_ops = {
	287	.is_enabled = regulator_is_enabled_regmap,
	288	.enable = tps65218_pmic_enable,
	289	.disable = tps65218_pmic_disable,
b9a0d359 TK	290	.set_suspend_enable = tps65218_pmic_set_suspend_enable,
b9a0d359 TK	291	.set_suspend_disable = tps65218_pmic_set_suspend_disable,
90e7d526 K	292	};
	293
	294	static const struct regulator_desc regulators[] = {
c0ea88b8 NK	295	TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, REGULATOR_VOLTAGE,
	296	tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC1,
	297	TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
	298	TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
b9a0d359 TK	299	2, 4000, 0, TPS65218_REG_SEQ3,
b9a0d359 TK	300	TPS65218_SEQ3_DC1_SEQ_MASK),
c0ea88b8 NK	301	TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, REGULATOR_VOLTAGE,
	302	tps65218_dcdc12_ops, 64, TPS65218_REG_CONTROL_DCDC2,
	303	TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
	304	TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
b9a0d359 TK	305	2, 4000, 0, TPS65218_REG_SEQ3,
b9a0d359 TK	306	TPS65218_SEQ3_DC2_SEQ_MASK),
c0ea88b8 NK	307	TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, REGULATOR_VOLTAGE,
	308	tps65218_ldo1_dcdc34_ops, 64,
	309	TPS65218_REG_CONTROL_DCDC3,
90e7d526	310	TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
c0ea88b8	311	TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
b9a0d359	312	0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC3_SEQ_MASK),
c0ea88b8 NK	313	TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, REGULATOR_VOLTAGE,
	314	tps65218_ldo1_dcdc34_ops, 53,
	315	TPS65218_REG_CONTROL_DCDC4,
	316	TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
	317	TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
b9a0d359	318	0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC4_SEQ_MASK),
c0ea88b8 NK	319	TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, REGULATOR_VOLTAGE,
	320	tps65218_dcdc56_pmic_ops, 1, -1, -1,
	321	TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0, 0,
b9a0d359 TK	322	NULL, 0, 0, 1000000, TPS65218_REG_SEQ5,
b9a0d359 TK	323	TPS65218_SEQ5_DC5_SEQ_MASK),
c0ea88b8 NK	324	TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, REGULATOR_VOLTAGE,
	325	tps65218_dcdc56_pmic_ops, 1, -1, -1,
	326	TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0, 0,
b9a0d359 TK	327	NULL, 0, 0, 1800000, TPS65218_REG_SEQ5,
b9a0d359 TK	328	TPS65218_SEQ5_DC6_SEQ_MASK),
c0ea88b8 NK	329	TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, REGULATOR_VOLTAGE,
c0ea88b8 NK	330	tps65218_ldo1_dcdc34_ops, 64,
0eada6a1	331	TPS65218_REG_CONTROL_LDO1,
90e7d526	332	TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
c0ea88b8	333	TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
b9a0d359 TK	334	2, 0, 0, TPS65218_REG_SEQ6,
b9a0d359 TK	335	TPS65218_SEQ6_LDO1_SEQ_MASK),
c0ea88b8 NK	336	TPS65218_REGULATOR("LS3", TPS65218_LS_3, REGULATOR_CURRENT,
	337	tps65218_ls3_ops, 0, 0, 0, TPS65218_REG_ENABLE2,
	338	TPS65218_ENABLE2_LS3_EN, TPS65218_REG_CONFIG2,
b9a0d359	339	TPS65218_CONFIG2_LS3ILIM_MASK, NULL, 0, 0, 0, 0, 0),
90e7d526 K	340	};
	341
	342	static int tps65218_regulator_probe(struct platform_device *pdev)
	343	{
	344	struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
	345	struct regulator_init_data *init_data;
	346	const struct tps_info *template;
	347	struct regulator_dev *rdev;
	348	const struct of_device_id *match;
	349	struct regulator_config config = { };
b9a0d359 TK	350	int id, ret;
b9a0d359 TK	351	unsigned int val;
90e7d526 K	352
90e7d526 K	353	match = of_match_device(tps65218_of_match, &pdev->dev);
948838a1	354	if (!match)
90e7d526	355	return -ENODEV;
948838a1 AL	356
	357	template = match->data;
	358	id = template->id;
072e78b1 JMC	359	init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node,
072e78b1 JMC	360	&regulators[id]);
90e7d526 K	361
	362	platform_set_drvdata(pdev, tps);
	363
	364	tps->info[id] = &tps65218_pmic_regs[id];
	365	config.dev = &pdev->dev;
	366	config.init_data = init_data;
	367	config.driver_data = tps;
	368	config.regmap = tps->regmap;
d2fa87c3	369	config.of_node = pdev->dev.of_node;
90e7d526 K	370
	371	rdev = devm_regulator_register(&pdev->dev, &regulators[id], &config);
	372	if (IS_ERR(rdev)) {
	373	dev_err(tps->dev, "failed to register %s regulator\n",
	374	pdev->name);
	375	return PTR_ERR(rdev);
	376	}
	377
b9a0d359 TK	378	ret = tps65218_reg_read(tps, regulators[id].bypass_reg, &val);
	379	if (ret)
	380	return ret;
	381
	382	tps->info[id]->strobe = val & regulators[id].bypass_mask;
	383
90e7d526 K	384	return 0;
	385	}
	386
	387	static struct platform_driver tps65218_regulator_driver = {
	388	.driver = {
	389	.name = "tps65218-pmic",
948838a1	390	.of_match_table = tps65218_of_match,
90e7d526 K	391	},
90e7d526 K	392	.probe = tps65218_regulator_probe,
90e7d526 K	393	};
	394
	395	module_platform_driver(tps65218_regulator_driver);
	396
	397	MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
	398	MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
	399	MODULE_ALIAS("platform:tps65218-pmic");
	400	MODULE_LICENSE("GPL v2");