[mirror_ubuntu-artful-kernel.git] / drivers / regulator / as3711-regulator.c

/*
 * AS3711 PMIC regulator driver, using DCDC Step Down and LDO supplies
 *
 * Copyright (C) 2012 Renesas Electronics Corporation
 * Author: Guennadi Liakhovetski, <g.liakhovetski@gmx.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the version 2 of the GNU General Public License as
 * published by the Free Software Foundation
 */

#include <linux/err.h>
#include <linux/init.h>
#include <linux/mfd/as3711.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>

struct as3711_regulator_info {
	struct regulator_desc	desc;
};

struct as3711_regulator {
	struct as3711_regulator_info *reg_info;
};

/*
 * The regulator API supports 4 modes of operataion: FAST, NORMAL, IDLE and
 * STANDBY. We map them in the following way to AS3711 SD1-4 DCDC modes:
 * FAST:	sdX_fast=1
 * NORMAL:	low_noise=1
 * IDLE:	low_noise=0
 */

static int as3711_set_mode_sd(struct regulator_dev *rdev, unsigned int mode)
{
	unsigned int fast_bit = rdev->desc->enable_mask,
		low_noise_bit = fast_bit << 4;
	u8 val;

	switch (mode) {
	case REGULATOR_MODE_FAST:
		val = fast_bit | low_noise_bit;
		break;
	case REGULATOR_MODE_NORMAL:
		val = low_noise_bit;
		break;
	case REGULATOR_MODE_IDLE:
		val = 0;
		break;
	default:
		return -EINVAL;
	}

	return regmap_update_bits(rdev->regmap, AS3711_SD_CONTROL_1,
				  low_noise_bit | fast_bit, val);
}

static unsigned int as3711_get_mode_sd(struct regulator_dev *rdev)
{
	unsigned int fast_bit = rdev->desc->enable_mask,
		low_noise_bit = fast_bit << 4, mask = fast_bit | low_noise_bit;
	unsigned int val;
	int ret = regmap_read(rdev->regmap, AS3711_SD_CONTROL_1, &val);

	if (ret < 0)
		return ret;

	if ((val & mask) == mask)
		return REGULATOR_MODE_FAST;

	if ((val & mask) == low_noise_bit)
		return REGULATOR_MODE_NORMAL;

	if (!(val & mask))
		return REGULATOR_MODE_IDLE;

	return -EINVAL;
}

static const struct regulator_ops as3711_sd_ops = {
	.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,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.get_mode		= as3711_get_mode_sd,
	.set_mode		= as3711_set_mode_sd,
};

static const struct regulator_ops as3711_aldo_ops = {
	.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,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
};

static const struct regulator_ops as3711_dldo_ops = {
	.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,
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
};

static const struct regulator_linear_range as3711_sd_ranges[] = {
	REGULATOR_LINEAR_RANGE(612500, 0x1, 0x40, 12500),
	REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
	REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7f, 50000),
};

static const struct regulator_linear_range as3711_aldo_ranges[] = {
	REGULATOR_LINEAR_RANGE(1200000, 0, 0xf, 50000),
	REGULATOR_LINEAR_RANGE(1800000, 0x10, 0x1f, 100000),
};

static const struct regulator_linear_range as3711_dldo_ranges[] = {
	REGULATOR_LINEAR_RANGE(900000, 0, 0x10, 50000),
	REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000),
};

#define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _sfx)			   \
	[AS3711_REGULATOR_ ## _id] = {					   \
	.desc = {							   \
		.name = "as3711-regulator-" # _id,			   \
		.id = AS3711_REGULATOR_ ## _id,				   \
		.n_voltages = (_vmask + 1),				   \
		.ops = &as3711_ ## _sfx ## _ops,			   \
		.type = REGULATOR_VOLTAGE,				   \
		.owner = THIS_MODULE,					   \
		.vsel_reg = AS3711_ ## _id ## _VOLTAGE,			   \
		.vsel_mask = _vmask,					   \
		.enable_reg = AS3711_ ## _en_reg,			   \
		.enable_mask = BIT(_en_bit),				   \
		.linear_ranges = as3711_ ## _sfx ## _ranges,		   \
		.n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \
	},								   \
}

static struct as3711_regulator_info as3711_reg_info[] = {
	AS3711_REG(SD_1, SD_CONTROL, 0, 0x7f, sd),
	AS3711_REG(SD_2, SD_CONTROL, 1, 0x7f, sd),
	AS3711_REG(SD_3, SD_CONTROL, 2, 0x7f, sd),
	AS3711_REG(SD_4, SD_CONTROL, 3, 0x7f, sd),
	AS3711_REG(LDO_1, LDO_1_VOLTAGE, 7, 0x1f, aldo),
	AS3711_REG(LDO_2, LDO_2_VOLTAGE, 7, 0x1f, aldo),
	AS3711_REG(LDO_3, LDO_3_VOLTAGE, 7, 0x3f, dldo),
	AS3711_REG(LDO_4, LDO_4_VOLTAGE, 7, 0x3f, dldo),
	AS3711_REG(LDO_5, LDO_5_VOLTAGE, 7, 0x3f, dldo),
	AS3711_REG(LDO_6, LDO_6_VOLTAGE, 7, 0x3f, dldo),
	AS3711_REG(LDO_7, LDO_7_VOLTAGE, 7, 0x3f, dldo),
	AS3711_REG(LDO_8, LDO_8_VOLTAGE, 7, 0x3f, dldo),
	/* StepUp output voltage depends on supplying regulator */
};

#define AS3711_REGULATOR_NUM ARRAY_SIZE(as3711_reg_info)

static struct of_regulator_match
as3711_regulator_matches[AS3711_REGULATOR_NUM] = {
	[AS3711_REGULATOR_SD_1] = { .name = "sd1" },
	[AS3711_REGULATOR_SD_2] = { .name = "sd2" },
	[AS3711_REGULATOR_SD_3] = { .name = "sd3" },
	[AS3711_REGULATOR_SD_4] = { .name = "sd4" },
	[AS3711_REGULATOR_LDO_1] = { .name = "ldo1" },
	[AS3711_REGULATOR_LDO_2] = { .name = "ldo2" },
	[AS3711_REGULATOR_LDO_3] = { .name = "ldo3" },
	[AS3711_REGULATOR_LDO_4] = { .name = "ldo4" },
	[AS3711_REGULATOR_LDO_5] = { .name = "ldo5" },
	[AS3711_REGULATOR_LDO_6] = { .name = "ldo6" },
	[AS3711_REGULATOR_LDO_7] = { .name = "ldo7" },
	[AS3711_REGULATOR_LDO_8] = { .name = "ldo8" },
};

static int as3711_regulator_parse_dt(struct device *dev,
				struct device_node **of_node, const int count)
{
	struct as3711_regulator_pdata *pdata = dev_get_platdata(dev);
	struct device_node *regulators =
		of_get_child_by_name(dev->parent->of_node, "regulators");
	struct of_regulator_match *match;
	int ret, i;

	if (!regulators) {
		dev_err(dev, "regulator node not found\n");
		return -ENODEV;
	}

	ret = of_regulator_match(dev->parent, regulators,
				 as3711_regulator_matches, count);
	of_node_put(regulators);
	if (ret < 0) {
		dev_err(dev, "Error parsing regulator init data: %d\n", ret);
		return ret;
	}

	for (i = 0, match = as3711_regulator_matches; i < count; i++, match++)
		if (match->of_node) {
			pdata->init_data[i] = match->init_data;
			of_node[i] = match->of_node;
		}

	return 0;
}

static int as3711_regulator_probe(struct platform_device *pdev)
{
	struct as3711_regulator_pdata *pdata = dev_get_platdata(&pdev->dev);
	struct as3711 *as3711 = dev_get_drvdata(pdev->dev.parent);
	struct regulator_config config = {.dev = &pdev->dev,};
	struct as3711_regulator *reg = NULL;
	struct as3711_regulator *regs;
	struct device_node *of_node[AS3711_REGULATOR_NUM] = {};
	struct regulator_dev *rdev;
	struct as3711_regulator_info *ri;
	int ret;
	int id;

	if (!pdata) {
		dev_err(&pdev->dev, "No platform data...\n");
		return -ENODEV;
	}

	if (pdev->dev.parent->of_node) {
		ret = as3711_regulator_parse_dt(&pdev->dev, of_node, AS3711_REGULATOR_NUM);
		if (ret < 0) {
			dev_err(&pdev->dev, "DT parsing failed: %d\n", ret);
			return ret;
		}
	}

	regs = devm_kzalloc(&pdev->dev, AS3711_REGULATOR_NUM *
			sizeof(struct as3711_regulator), GFP_KERNEL);
	if (!regs)
		return -ENOMEM;

	for (id = 0, ri = as3711_reg_info; id < AS3711_REGULATOR_NUM; ++id, ri++) {
		reg = &regs[id];
		reg->reg_info = ri;

		config.init_data = pdata->init_data[id];
		config.driver_data = reg;
		config.regmap = as3711->regmap;
		config.of_node = of_node[id];

		rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
		if (IS_ERR(rdev)) {
			dev_err(&pdev->dev, "Failed to register regulator %s\n",
				ri->desc.name);
			return PTR_ERR(rdev);
		}
	}
	platform_set_drvdata(pdev, regs);
	return 0;
}

static struct platform_driver as3711_regulator_driver = {
	.driver	= {
		.name	= "as3711-regulator",
	},
	.probe		= as3711_regulator_probe,
};

static int __init as3711_regulator_init(void)
{
	return platform_driver_register(&as3711_regulator_driver);
}
subsys_initcall(as3711_regulator_init);

static void __exit as3711_regulator_exit(void)
{
	platform_driver_unregister(&as3711_regulator_driver);
}
module_exit(as3711_regulator_exit);

MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
MODULE_DESCRIPTION("AS3711 regulator driver");
MODULE_ALIAS("platform:as3711-regulator");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
f1e64f90 GL	1	/*
	2	* AS3711 PMIC regulator driver, using DCDC Step Down and LDO supplies
	3	*
	4	* Copyright (C) 2012 Renesas Electronics Corporation
	5	* Author: Guennadi Liakhovetski, <g.liakhovetski@gmx.de>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the version 2 of the GNU General Public License as
	9	* published by the Free Software Foundation
	10	*/
	11
	12	#include <linux/err.h>
	13	#include <linux/init.h>
	14	#include <linux/mfd/as3711.h>
	15	#include <linux/module.h>
416d6759	16	#include <linux/of.h>
f1e64f90 GL	17	#include <linux/platform_device.h>
	18	#include <linux/regmap.h>
	19	#include <linux/regulator/driver.h>
416d6759	20	#include <linux/regulator/of_regulator.h>
f1e64f90 GL	21	#include <linux/slab.h>
	22
	23	struct as3711_regulator_info {
	24	struct regulator_desc desc;
f1e64f90 GL	25	};
	26
	27	struct as3711_regulator {
	28	struct as3711_regulator_info *reg_info;
f1e64f90 GL	29	};
f1e64f90 GL	30
f1e64f90 GL	31	/*
	32	* The regulator API supports 4 modes of operataion: FAST, NORMAL, IDLE and
	33	* STANDBY. We map them in the following way to AS3711 SD1-4 DCDC modes:
	34	* FAST: sdX_fast=1
	35	* NORMAL: low_noise=1
	36	* IDLE: low_noise=0
	37	*/
	38
	39	static int as3711_set_mode_sd(struct regulator_dev *rdev, unsigned int mode)
	40	{
	41	unsigned int fast_bit = rdev->desc->enable_mask,
	42	low_noise_bit = fast_bit << 4;
	43	u8 val;
	44
	45	switch (mode) {
	46	case REGULATOR_MODE_FAST:
	47	val = fast_bit \| low_noise_bit;
	48	break;
	49	case REGULATOR_MODE_NORMAL:
	50	val = low_noise_bit;
	51	break;
	52	case REGULATOR_MODE_IDLE:
	53	val = 0;
	54	break;
	55	default:
	56	return -EINVAL;
	57	}
	58
	59	return regmap_update_bits(rdev->regmap, AS3711_SD_CONTROL_1,
	60	low_noise_bit \| fast_bit, val);
	61	}
	62
	63	static unsigned int as3711_get_mode_sd(struct regulator_dev *rdev)
	64	{
	65	unsigned int fast_bit = rdev->desc->enable_mask,
	66	low_noise_bit = fast_bit << 4, mask = fast_bit \| low_noise_bit;
	67	unsigned int val;
	68	int ret = regmap_read(rdev->regmap, AS3711_SD_CONTROL_1, &val);
	69
	70	if (ret < 0)
	71	return ret;
	72
	73	if ((val & mask) == mask)
	74	return REGULATOR_MODE_FAST;
	75
	76	if ((val & mask) == low_noise_bit)
	77	return REGULATOR_MODE_NORMAL;
	78
	79	if (!(val & mask))
	80	return REGULATOR_MODE_IDLE;
	81
	82	return -EINVAL;
	83	}
	84
1bacf463	85	static const struct regulator_ops as3711_sd_ops = {
f1e64f90 GL	86	.is_enabled = regulator_is_enabled_regmap,
	87	.enable = regulator_enable_regmap,
	88	.disable = regulator_disable_regmap,
	89	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	90	.set_voltage_sel = regulator_set_voltage_sel_regmap,
9234c636 AL	91	.list_voltage = regulator_list_voltage_linear_range,
9234c636 AL	92	.map_voltage = regulator_map_voltage_linear_range,
f1e64f90 GL	93	.get_mode = as3711_get_mode_sd,
	94	.set_mode = as3711_set_mode_sd,
	95	};
	96
1bacf463	97	static const struct regulator_ops as3711_aldo_ops = {
f1e64f90 GL	98	.is_enabled = regulator_is_enabled_regmap,
	99	.enable = regulator_enable_regmap,
	100	.disable = regulator_disable_regmap,
	101	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	102	.set_voltage_sel = regulator_set_voltage_sel_regmap,
9234c636 AL	103	.list_voltage = regulator_list_voltage_linear_range,
9234c636 AL	104	.map_voltage = regulator_map_voltage_linear_range,
f1e64f90 GL	105	};
f1e64f90 GL	106
1bacf463	107	static const struct regulator_ops as3711_dldo_ops = {
f1e64f90 GL	108	.is_enabled = regulator_is_enabled_regmap,
	109	.enable = regulator_enable_regmap,
	110	.disable = regulator_disable_regmap,
	111	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	112	.set_voltage_sel = regulator_set_voltage_sel_regmap,
9234c636 AL	113	.list_voltage = regulator_list_voltage_linear_range,
	114	.map_voltage = regulator_map_voltage_linear_range,
	115	};
	116
	117	static const struct regulator_linear_range as3711_sd_ranges[] = {
8828bae4 AL	118	REGULATOR_LINEAR_RANGE(612500, 0x1, 0x40, 12500),
	119	REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
	120	REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7f, 50000),
9234c636 AL	121	};
	122
	123	static const struct regulator_linear_range as3711_aldo_ranges[] = {
8828bae4 AL	124	REGULATOR_LINEAR_RANGE(1200000, 0, 0xf, 50000),
8828bae4 AL	125	REGULATOR_LINEAR_RANGE(1800000, 0x10, 0x1f, 100000),
9234c636 AL	126	};
	127
	128	static const struct regulator_linear_range as3711_dldo_ranges[] = {
8828bae4 AL	129	REGULATOR_LINEAR_RANGE(900000, 0, 0x10, 50000),
8828bae4 AL	130	REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000),
f1e64f90 GL	131	};
f1e64f90 GL	132
192264e0 AL	133	#define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _sfx) \
	134	[AS3711_REGULATOR_ ## _id] = { \
	135	.desc = { \
	136	.name = "as3711-regulator-" # _id, \
	137	.id = AS3711_REGULATOR_ ## _id, \
	138	.n_voltages = (_vmask + 1), \
	139	.ops = &as3711_ ## _sfx ## _ops, \
	140	.type = REGULATOR_VOLTAGE, \
	141	.owner = THIS_MODULE, \
	142	.vsel_reg = AS3711_ ## _id ## _VOLTAGE, \
	143	.vsel_mask = _vmask, \
	144	.enable_reg = AS3711_ ## _en_reg, \
	145	.enable_mask = BIT(_en_bit), \
	146	.linear_ranges = as3711_ ## _sfx ## _ranges, \
	147	.n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \
	148	}, \
f1e64f90 GL	149	}
	150
	151	static struct as3711_regulator_info as3711_reg_info[] = {
192264e0 AL	152	AS3711_REG(SD_1, SD_CONTROL, 0, 0x7f, sd),
	153	AS3711_REG(SD_2, SD_CONTROL, 1, 0x7f, sd),
	154	AS3711_REG(SD_3, SD_CONTROL, 2, 0x7f, sd),
	155	AS3711_REG(SD_4, SD_CONTROL, 3, 0x7f, sd),
	156	AS3711_REG(LDO_1, LDO_1_VOLTAGE, 7, 0x1f, aldo),
	157	AS3711_REG(LDO_2, LDO_2_VOLTAGE, 7, 0x1f, aldo),
	158	AS3711_REG(LDO_3, LDO_3_VOLTAGE, 7, 0x3f, dldo),
	159	AS3711_REG(LDO_4, LDO_4_VOLTAGE, 7, 0x3f, dldo),
	160	AS3711_REG(LDO_5, LDO_5_VOLTAGE, 7, 0x3f, dldo),
	161	AS3711_REG(LDO_6, LDO_6_VOLTAGE, 7, 0x3f, dldo),
	162	AS3711_REG(LDO_7, LDO_7_VOLTAGE, 7, 0x3f, dldo),
	163	AS3711_REG(LDO_8, LDO_8_VOLTAGE, 7, 0x3f, dldo),
f1e64f90 GL	164	/* StepUp output voltage depends on supplying regulator */
	165	};
	166
	167	#define AS3711_REGULATOR_NUM ARRAY_SIZE(as3711_reg_info)
	168
d6c7d731 AL	169	static struct of_regulator_match
	170	as3711_regulator_matches[AS3711_REGULATOR_NUM] = {
	171	[AS3711_REGULATOR_SD_1] = { .name = "sd1" },
	172	[AS3711_REGULATOR_SD_2] = { .name = "sd2" },
	173	[AS3711_REGULATOR_SD_3] = { .name = "sd3" },
	174	[AS3711_REGULATOR_SD_4] = { .name = "sd4" },
	175	[AS3711_REGULATOR_LDO_1] = { .name = "ldo1" },
	176	[AS3711_REGULATOR_LDO_2] = { .name = "ldo2" },
	177	[AS3711_REGULATOR_LDO_3] = { .name = "ldo3" },
	178	[AS3711_REGULATOR_LDO_4] = { .name = "ldo4" },
	179	[AS3711_REGULATOR_LDO_5] = { .name = "ldo5" },
	180	[AS3711_REGULATOR_LDO_6] = { .name = "ldo6" },
	181	[AS3711_REGULATOR_LDO_7] = { .name = "ldo7" },
	182	[AS3711_REGULATOR_LDO_8] = { .name = "ldo8" },
416d6759 GL	183	};
	184
	185	static int as3711_regulator_parse_dt(struct device *dev,
	186	struct device_node **of_node, const int count)
	187	{
	188	struct as3711_regulator_pdata *pdata = dev_get_platdata(dev);
	189	struct device_node *regulators =
eecb02c0	190	of_get_child_by_name(dev->parent->of_node, "regulators");
d6c7d731	191	struct of_regulator_match *match;
416d6759 GL	192	int ret, i;
	193
	194	if (!regulators) {
	195	dev_err(dev, "regulator node not found\n");
	196	return -ENODEV;
	197	}
	198
d6c7d731 AL	199	ret = of_regulator_match(dev->parent, regulators,
d6c7d731 AL	200	as3711_regulator_matches, count);
416d6759 GL	201	of_node_put(regulators);
	202	if (ret < 0) {
	203	dev_err(dev, "Error parsing regulator init data: %d\n", ret);
	204	return ret;
	205	}
	206
d6c7d731	207	for (i = 0, match = as3711_regulator_matches; i < count; i++, match++)
416d6759 GL	208	if (match->of_node) {
	209	pdata->init_data[i] = match->init_data;
	210	of_node[i] = match->of_node;
	211	}
	212
	213	return 0;
	214	}
	215
f1e64f90 GL	216	static int as3711_regulator_probe(struct platform_device *pdev)
	217	{
	218	struct as3711_regulator_pdata *pdata = dev_get_platdata(&pdev->dev);
	219	struct as3711 *as3711 = dev_get_drvdata(pdev->dev.parent);
f1e64f90 GL	220	struct regulator_config config = {.dev = &pdev->dev,};
	221	struct as3711_regulator *reg = NULL;
	222	struct as3711_regulator *regs;
416d6759	223	struct device_node *of_node[AS3711_REGULATOR_NUM] = {};
f1e64f90 GL	224	struct regulator_dev *rdev;
	225	struct as3711_regulator_info *ri;
	226	int ret;
	227	int id;
	228
416d6759 GL	229	if (!pdata) {
	230	dev_err(&pdev->dev, "No platform data...\n");
	231	return -ENODEV;
	232	}
	233
	234	if (pdev->dev.parent->of_node) {
	235	ret = as3711_regulator_parse_dt(&pdev->dev, of_node, AS3711_REGULATOR_NUM);
	236	if (ret < 0) {
	237	dev_err(&pdev->dev, "DT parsing failed: %d\n", ret);
	238	return ret;
	239	}
	240	}
f1e64f90 GL	241
	242	regs = devm_kzalloc(&pdev->dev, AS3711_REGULATOR_NUM *
	243	sizeof(struct as3711_regulator), GFP_KERNEL);
31833581	244	if (!regs)
f1e64f90	245	return -ENOMEM;
f1e64f90 GL	246
f1e64f90 GL	247	for (id = 0, ri = as3711_reg_info; id < AS3711_REGULATOR_NUM; ++id, ri++) {
f1e64f90 GL	248	reg = &regs[id];
	249	reg->reg_info = ri;
	250
f7e9e52f	251	config.init_data = pdata->init_data[id];
f1e64f90 GL	252	config.driver_data = reg;
f1e64f90 GL	253	config.regmap = as3711->regmap;
416d6759	254	config.of_node = of_node[id];
f1e64f90	255
27447c93	256	rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
f1e64f90 GL	257	if (IS_ERR(rdev)) {
	258	dev_err(&pdev->dev, "Failed to register regulator %s\n",
	259	ri->desc.name);
27447c93	260	return PTR_ERR(rdev);
f1e64f90	261	}
f1e64f90 GL	262	}
	263	platform_set_drvdata(pdev, regs);
	264	return 0;
f1e64f90 GL	265	}
	266
	267	static struct platform_driver as3711_regulator_driver = {
	268	.driver = {
	269	.name = "as3711-regulator",
f1e64f90 GL	270	},
f1e64f90 GL	271	.probe = as3711_regulator_probe,
f1e64f90 GL	272	};
	273
	274	static int __init as3711_regulator_init(void)
	275	{
	276	return platform_driver_register(&as3711_regulator_driver);
	277	}
	278	subsys_initcall(as3711_regulator_init);
	279
	280	static void __exit as3711_regulator_exit(void)
	281	{
	282	platform_driver_unregister(&as3711_regulator_driver);
	283	}
	284	module_exit(as3711_regulator_exit);
	285
	286	MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
	287	MODULE_DESCRIPTION("AS3711 regulator driver");
	288	MODULE_ALIAS("platform:as3711-regulator");
	289	MODULE_LICENSE("GPL v2");