[linux-2.6-block.git] / drivers / regulator / tps65217-regulator.c

/*
 * tps65217-regulator.c
 *
 * Regulator driver for TPS65217 PMIC
 *
 * Copyright (C) 2011 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 as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License 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/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65217.h>

#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t, _lr, _nlr) \
	{						\
		.name		= _name,		\
		.id		= _id,			\
		.ops		= &_ops,		\
		.n_voltages	= _n,			\
		.type		= REGULATOR_VOLTAGE,	\
		.owner		= THIS_MODULE,		\
		.vsel_reg	= _vr,			\
		.vsel_mask	= _vm,			\
		.enable_reg	= TPS65217_REG_ENABLE,	\
		.enable_mask	= _em,			\
		.volt_table	= _t,			\
		.linear_ranges	= _lr,			\
		.n_linear_ranges = _nlr,		\
	}						\

static const unsigned int LDO1_VSEL_table[] = {
	1000000, 1100000, 1200000, 1250000,
	1300000, 1350000, 1400000, 1500000,
	1600000, 1800000, 2500000, 2750000,
	2800000, 3000000, 3100000, 3300000,
};

static const struct regulator_linear_range tps65217_uv1_ranges[] = {
	REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000),
	REGULATOR_LINEAR_RANGE(1550000, 25, 30, 50000),
	REGULATOR_LINEAR_RANGE(1850000, 31, 52, 50000),
	REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000),
	REGULATOR_LINEAR_RANGE(3300000, 56, 62, 0),
};

static const struct regulator_linear_range tps65217_uv2_ranges[] = {
	REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000),
	REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000),
	REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000),
};

static int tps65217_pmic_enable(struct regulator_dev *dev)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	int rid = rdev_get_id(dev);

	if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
		return -EINVAL;

	/* Enable the regulator and password protection is level 1 */
	return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
				 dev->desc->enable_mask, dev->desc->enable_mask,
				 TPS65217_PROTECT_L1);
}

static int tps65217_pmic_disable(struct regulator_dev *dev)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	int rid = rdev_get_id(dev);

	if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
		return -EINVAL;

	/* Disable the regulator and password protection is level 1 */
	return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
				   dev->desc->enable_mask, TPS65217_PROTECT_L1);
}

static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev,
					 unsigned selector)
{
	int ret;
	struct tps65217 *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 = tps65217_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
				selector, TPS65217_PROTECT_L2);

	/* Set GO bit for DCDCx to initiate voltage transistion */
	switch (rid) {
	case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
		ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
				       TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
				       TPS65217_PROTECT_L2);
		break;
	}

	return ret;
}

/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
static struct regulator_ops tps65217_pmic_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= tps65217_pmic_enable,
	.disable		= tps65217_pmic_disable,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= tps65217_pmic_set_voltage_sel,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
};

/* Operations permitted on LDO1 */
static struct regulator_ops tps65217_pmic_ldo1_ops = {
	.is_enabled		= regulator_is_enabled_regmap,
	.enable			= tps65217_pmic_enable,
	.disable		= tps65217_pmic_disable,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= tps65217_pmic_set_voltage_sel,
	.list_voltage		= regulator_list_voltage_table,
	.map_voltage		= regulator_map_voltage_ascend,
};

static const struct regulator_desc regulators[] = {
	TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64,
			   TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK,
			   TPS65217_ENABLE_DC1_EN, NULL, tps65217_uv1_ranges,
			   2),	/* DCDC1 voltage range: 900000 ~ 1800000 */
	TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64,
			   TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK,
			   TPS65217_ENABLE_DC2_EN, NULL, tps65217_uv1_ranges,
			   ARRAY_SIZE(tps65217_uv1_ranges)),
	TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64,
			   TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK,
			   TPS65217_ENABLE_DC3_EN, NULL, tps65217_uv1_ranges,
			   1),	/* DCDC3 voltage range: 900000 ~ 1500000 */
	TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16,
			   TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK,
			   TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table, NULL, 0),
	TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64,
			   TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK,
			   TPS65217_ENABLE_LDO2_EN, NULL, tps65217_uv1_ranges,
			   ARRAY_SIZE(tps65217_uv1_ranges)),
	TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32,
			   TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK,
			   TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
			   NULL, tps65217_uv2_ranges,
			   ARRAY_SIZE(tps65217_uv2_ranges)),
	TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32,
			   TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK,
			   TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
			   NULL, tps65217_uv2_ranges,
			   ARRAY_SIZE(tps65217_uv2_ranges)),
};

#ifdef CONFIG_OF
static struct of_regulator_match reg_matches[] = {
	{ .name = "dcdc1" },
	{ .name = "dcdc2" },
	{ .name = "dcdc3" },
	{ .name = "ldo1"  },
	{ .name = "ldo2"  },
	{ .name = "ldo3"  },
	{ .name = "ldo4"  },
};

static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
{
	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
	struct device_node *node = tps->dev->of_node;
	struct tps65217_board *pdata;
	struct device_node *regs;
	int i, count;

	regs = of_get_child_by_name(node, "regulators");
	if (!regs)
		return NULL;

	count = of_regulator_match(&pdev->dev, regs, reg_matches,
				   TPS65217_NUM_REGULATOR);
	of_node_put(regs);
	if ((count < 0) || (count > TPS65217_NUM_REGULATOR))
		return NULL;

	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata)
		return NULL;

	for (i = 0; i < count; i++) {
		if (!reg_matches[i].of_node)
			continue;

		pdata->tps65217_init_data[i] = reg_matches[i].init_data;
		pdata->of_node[i] = reg_matches[i].of_node;
	}

	return pdata;
}
#else
static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
{
	return NULL;
}
#endif

static int tps65217_regulator_probe(struct platform_device *pdev)
{
	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
	struct tps65217_board *pdata = dev_get_platdata(tps->dev);
	struct regulator_dev *rdev;
	struct regulator_config config = { };
	int i;

	if (tps->dev->of_node)
		pdata = tps65217_parse_dt(pdev);

	if (tps65217_chip_id(tps) != TPS65217) {
		dev_err(&pdev->dev, "Invalid tps chip version\n");
		return -ENODEV;
	}

	platform_set_drvdata(pdev, tps);

	for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
		/* Register the regulators */
		config.dev = tps->dev;
		if (pdata)
			config.init_data = pdata->tps65217_init_data[i];
		config.driver_data = tps;
		config.regmap = tps->regmap;
		if (tps->dev->of_node)
			config.of_node = pdata->of_node[i];

		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
					       &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 tps65217_regulator_driver = {
	.driver = {
		.name = "tps65217-pmic",
	},
	.probe = tps65217_regulator_probe,
};

static int __init tps65217_regulator_init(void)
{
	return platform_driver_register(&tps65217_regulator_driver);
}
subsys_initcall(tps65217_regulator_init);

static void __exit tps65217_regulator_exit(void)
{
	platform_driver_unregister(&tps65217_regulator_driver);
}
module_exit(tps65217_regulator_exit);

MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
MODULE_ALIAS("platform:tps65217-pmic");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
a493077f AC	1	/*
	2	* tps65217-regulator.c
	3	*
	4	* Regulator driver for TPS65217 PMIC
	5	*
	6	* Copyright (C) 2011 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 as
	10	* published by the Free Software Foundation version 2.
	11	*
	12	* This program is distributed "as is" WITHOUT ANY WARRANTY of any
	13	* kind, whether express or implied; without even the implied warranty
	14	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License 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
1922b0f2	25	#include <linux/regulator/of_regulator.h>
a493077f AC	26	#include <linux/regulator/driver.h>
	27	#include <linux/regulator/machine.h>
	28	#include <linux/mfd/tps65217.h>
	29
6290d606	30	#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t, _lr, _nlr) \
a493077f AC	31	{ \
	32	.name = _name, \
	33	.id = _id, \
	34	.ops = &_ops, \
	35	.n_voltages = _n, \
	36	.type = REGULATOR_VOLTAGE, \
	37	.owner = THIS_MODULE, \
b4bc9ef6 AL	38	.vsel_reg = _vr, \
	39	.vsel_mask = _vm, \
	40	.enable_reg = TPS65217_REG_ENABLE, \
	41	.enable_mask = _em, \
d172f319	42	.volt_table = _t, \
6290d606 AL	43	.linear_ranges = _lr, \
6290d606 AL	44	.n_linear_ranges = _nlr, \
a493077f AC	45	} \
a493077f AC	46
d172f319	47	static const unsigned int LDO1_VSEL_table[] = {
a493077f AC	48	1000000, 1100000, 1200000, 1250000,
	49	1300000, 1350000, 1400000, 1500000,
	50	1600000, 1800000, 2500000, 2750000,
	51	2800000, 3000000, 3100000, 3300000,
	52	};
	53
6290d606	54	static const struct regulator_linear_range tps65217_uv1_ranges[] = {
8828bae4 AL	55	REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000),
	56	REGULATOR_LINEAR_RANGE(1550000, 25, 30, 50000),
	57	REGULATOR_LINEAR_RANGE(1850000, 31, 52, 50000),
	58	REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000),
	59	REGULATOR_LINEAR_RANGE(3300000, 56, 62, 0),
6290d606	60	};
a493077f	61
6290d606	62	static const struct regulator_linear_range tps65217_uv2_ranges[] = {
8828bae4 AL	63	REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000),
	64	REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000),
	65	REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000),
a493077f AC	66	};
a493077f AC	67
fc56911b	68	static int tps65217_pmic_enable(struct regulator_dev *dev)
a493077f	69	{
a493077f	70	struct tps65217 *tps = rdev_get_drvdata(dev);
6bdaaf0e	71	int rid = rdev_get_id(dev);
a493077f	72
fc56911b	73	if (rid < TPS65217_DCDC_1 \|\| rid > TPS65217_LDO_4)
a493077f AC	74	return -EINVAL;
	75
	76	/* Enable the regulator and password protection is level 1 */
	77	return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
b4bc9ef6 AL	78	dev->desc->enable_mask, dev->desc->enable_mask,
b4bc9ef6 AL	79	TPS65217_PROTECT_L1);
a493077f AC	80	}
a493077f AC	81
fc56911b	82	static int tps65217_pmic_disable(struct regulator_dev *dev)
a493077f AC	83	{
a493077f AC	84	struct tps65217 *tps = rdev_get_drvdata(dev);
6bdaaf0e	85	int rid = rdev_get_id(dev);
a493077f	86
fc56911b	87	if (rid < TPS65217_DCDC_1 \|\| rid > TPS65217_LDO_4)
a493077f AC	88	return -EINVAL;
	89
	90	/* Disable the regulator and password protection is level 1 */
	91	return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
b4bc9ef6	92	dev->desc->enable_mask, TPS65217_PROTECT_L1);
a493077f AC	93	}
a493077f AC	94
8b22285f AL	95	static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev,
8b22285f AL	96	unsigned selector)
a493077f	97	{
8b22285f	98	int ret;
a493077f	99	struct tps65217 *tps = rdev_get_drvdata(dev);
8b22285f	100	unsigned int rid = rdev_get_id(dev);
a493077f	101
8b22285f	102	/* Set the voltage based on vsel value and write protect level is 2 */
b4bc9ef6	103	ret = tps65217_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
8b22285f	104	selector, TPS65217_PROTECT_L2);
a493077f	105
8b22285f AL	106	/* Set GO bit for DCDCx to initiate voltage transistion */
	107	switch (rid) {
	108	case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
	109	ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
	110	TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
	111	TPS65217_PROTECT_L2);
	112	break;
	113	}
a493077f	114
8b22285f	115	return ret;
a493077f AC	116	}
a493077f AC	117
fc56911b AL	118	/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
fc56911b AL	119	static struct regulator_ops tps65217_pmic_ops = {
b4bc9ef6	120	.is_enabled = regulator_is_enabled_regmap,
fc56911b AL	121	.enable = tps65217_pmic_enable,
fc56911b AL	122	.disable = tps65217_pmic_disable,
b4bc9ef6	123	.get_voltage_sel = regulator_get_voltage_sel_regmap,
8b22285f	124	.set_voltage_sel = tps65217_pmic_set_voltage_sel,
6290d606 AL	125	.list_voltage = regulator_list_voltage_linear_range,
6290d606 AL	126	.map_voltage = regulator_map_voltage_linear_range,
a493077f AC	127	};
	128
	129	/* Operations permitted on LDO1 */
	130	static struct regulator_ops tps65217_pmic_ldo1_ops = {
b4bc9ef6	131	.is_enabled = regulator_is_enabled_regmap,
fc56911b AL	132	.enable = tps65217_pmic_enable,
fc56911b AL	133	.disable = tps65217_pmic_disable,
b4bc9ef6	134	.get_voltage_sel = regulator_get_voltage_sel_regmap,
8b22285f	135	.set_voltage_sel = tps65217_pmic_set_voltage_sel,
d172f319	136	.list_voltage = regulator_list_voltage_table,
5957ae1f	137	.map_voltage = regulator_map_voltage_ascend,
a493077f AC	138	};
a493077f AC	139
78637a3d	140	static const struct regulator_desc regulators[] = {
b4bc9ef6 AL	141	TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64,
b4bc9ef6 AL	142	TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK,
6290d606 AL	143	TPS65217_ENABLE_DC1_EN, NULL, tps65217_uv1_ranges,
6290d606 AL	144	2), /* DCDC1 voltage range: 900000 ~ 1800000 */
b4bc9ef6 AL	145	TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64,
b4bc9ef6 AL	146	TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK,
6290d606 AL	147	TPS65217_ENABLE_DC2_EN, NULL, tps65217_uv1_ranges,
6290d606 AL	148	ARRAY_SIZE(tps65217_uv1_ranges)),
b4bc9ef6 AL	149	TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64,
b4bc9ef6 AL	150	TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK,
6290d606 AL	151	TPS65217_ENABLE_DC3_EN, NULL, tps65217_uv1_ranges,
6290d606 AL	152	1), /* DCDC3 voltage range: 900000 ~ 1500000 */
b4bc9ef6 AL	153	TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16,
b4bc9ef6 AL	154	TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK,
6290d606	155	TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table, NULL, 0),
b4bc9ef6 AL	156	TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64,
b4bc9ef6 AL	157	TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK,
6290d606 AL	158	TPS65217_ENABLE_LDO2_EN, NULL, tps65217_uv1_ranges,
6290d606 AL	159	ARRAY_SIZE(tps65217_uv1_ranges)),
b4bc9ef6 AL	160	TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32,
b4bc9ef6 AL	161	TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK,
d172f319	162	TPS65217_ENABLE_LS1_EN \| TPS65217_DEFLDO3_LDO3_EN,
6290d606 AL	163	NULL, tps65217_uv2_ranges,
6290d606 AL	164	ARRAY_SIZE(tps65217_uv2_ranges)),
b4bc9ef6 AL	165	TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32,
b4bc9ef6 AL	166	TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK,
d172f319	167	TPS65217_ENABLE_LS2_EN \| TPS65217_DEFLDO4_LDO4_EN,
6290d606 AL	168	NULL, tps65217_uv2_ranges,
6290d606 AL	169	ARRAY_SIZE(tps65217_uv2_ranges)),
a493077f AC	170	};
a493077f AC	171
1922b0f2 AC	172	#ifdef CONFIG_OF
1922b0f2 AC	173	static struct of_regulator_match reg_matches[] = {
c2542d2a MB	174	{ .name = "dcdc1" },
	175	{ .name = "dcdc2" },
	176	{ .name = "dcdc3" },
	177	{ .name = "ldo1" },
	178	{ .name = "ldo2" },
	179	{ .name = "ldo3" },
	180	{ .name = "ldo4" },
1922b0f2 AC	181	};
	182
	183	static struct tps65217_board tps65217_parse_dt(struct platform_device pdev)
	184	{
	185	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
	186	struct device_node *node = tps->dev->of_node;
	187	struct tps65217_board *pdata;
	188	struct device_node *regs;
	189	int i, count;
	190
93195c33	191	regs = of_get_child_by_name(node, "regulators");
1922b0f2 AC	192	if (!regs)
	193	return NULL;
	194
5bce833c AL	195	count = of_regulator_match(&pdev->dev, regs, reg_matches,
5bce833c AL	196	TPS65217_NUM_REGULATOR);
1922b0f2 AC	197	of_node_put(regs);
	198	if ((count < 0) \|\| (count > TPS65217_NUM_REGULATOR))
	199	return NULL;
	200
	201	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	202	if (!pdata)
	203	return NULL;
	204
	205	for (i = 0; i < count; i++) {
94ee607c	206	if (!reg_matches[i].of_node)
1922b0f2 AC	207	continue;
	208
	209	pdata->tps65217_init_data[i] = reg_matches[i].init_data;
	210	pdata->of_node[i] = reg_matches[i].of_node;
	211	}
	212
	213	return pdata;
	214	}
	215	#else
	216	static struct tps65217_board tps65217_parse_dt(struct platform_device pdev)
	217	{
	218	return NULL;
	219	}
	220	#endif
	221
a5023574	222	static int tps65217_regulator_probe(struct platform_device *pdev)
a493077f	223	{
1922b0f2 AC	224	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
1922b0f2 AC	225	struct tps65217_board *pdata = dev_get_platdata(tps->dev);
a493077f	226	struct regulator_dev *rdev;
c172708d	227	struct regulator_config config = { };
4aac198d	228	int i;
a493077f	229
1922b0f2 AC	230	if (tps->dev->of_node)
1922b0f2 AC	231	pdata = tps65217_parse_dt(pdev);
a493077f	232
1922b0f2 AC	233	if (tps65217_chip_id(tps) != TPS65217) {
	234	dev_err(&pdev->dev, "Invalid tps chip version\n");
	235	return -ENODEV;
	236	}
a493077f	237
1922b0f2	238	platform_set_drvdata(pdev, tps);
a493077f	239
1922b0f2	240	for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
1922b0f2	241	/* Register the regulators */
1922b0f2	242	config.dev = tps->dev;
81baf9fe MB	243	if (pdata)
81baf9fe MB	244	config.init_data = pdata->tps65217_init_data[i];
1922b0f2 AC	245	config.driver_data = tps;
	246	config.regmap = tps->regmap;
	247	if (tps->dev->of_node)
	248	config.of_node = pdata->of_node[i];
	249
4aac198d SK	250	rdev = devm_regulator_register(&pdev->dev, &regulators[i],
4aac198d SK	251	&config);
1922b0f2 AC	252	if (IS_ERR(rdev)) {
	253	dev_err(tps->dev, "failed to register %s regulator\n",
	254	pdev->name);
4aac198d	255	return PTR_ERR(rdev);
1922b0f2	256	}
1922b0f2	257	}
a493077f	258	return 0;
a493077f AC	259	}
	260
	261	static struct platform_driver tps65217_regulator_driver = {
	262	.driver = {
	263	.name = "tps65217-pmic",
	264	},
	265	.probe = tps65217_regulator_probe,
a493077f AC	266	};
	267
	268	static int __init tps65217_regulator_init(void)
	269	{
	270	return platform_driver_register(&tps65217_regulator_driver);
	271	}
	272	subsys_initcall(tps65217_regulator_init);
	273
	274	static void __exit tps65217_regulator_exit(void)
	275	{
	276	platform_driver_unregister(&tps65217_regulator_driver);
	277	}
	278	module_exit(tps65217_regulator_exit);
	279
a493077f AC	280	MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
	281	MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
	282	MODULE_ALIAS("platform:tps65217-pmic");
	283	MODULE_LICENSE("GPL v2");