[linux-2.6-block.git] / drivers / regulator / arizona-ldo1.c

/*
 * arizona-ldo1.c  --  LDO1 supply for Arizona devices
 *
 * Copyright 2012 Wolfson Microelectronics PLC.
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.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/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/slab.h>

#include <linux/regulator/arizona-ldo1.h>

#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/pdata.h>
#include <linux/mfd/arizona/registers.h>

struct arizona_ldo1 {
	struct regulator_dev *regulator;
	struct regmap *regmap;

	struct regulator_consumer_supply supply;
	struct regulator_init_data init_data;
};

static int arizona_ldo1_hc_list_voltage(struct regulator_dev *rdev,
					unsigned int selector)
{
	if (selector >= rdev->desc->n_voltages)
		return -EINVAL;

	if (selector == rdev->desc->n_voltages - 1)
		return 1800000;
	else
		return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
}

static int arizona_ldo1_hc_map_voltage(struct regulator_dev *rdev,
				       int min_uV, int max_uV)
{
	int sel;

	sel = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
	if (sel >= rdev->desc->n_voltages)
		sel = rdev->desc->n_voltages - 1;

	return sel;
}

static int arizona_ldo1_hc_set_voltage_sel(struct regulator_dev *rdev,
					   unsigned sel)
{
	struct arizona_ldo1 *ldo = rdev_get_drvdata(rdev);
	struct regmap *regmap = ldo->regmap;
	unsigned int val;
	int ret;

	if (sel == rdev->desc->n_voltages - 1)
		val = ARIZONA_LDO1_HI_PWR;
	else
		val = 0;

	ret = regmap_update_bits(regmap, ARIZONA_LDO1_CONTROL_2,
				 ARIZONA_LDO1_HI_PWR, val);
	if (ret != 0)
		return ret;

	if (val)
		return 0;

	val = sel << ARIZONA_LDO1_VSEL_SHIFT;

	return regmap_update_bits(regmap, ARIZONA_LDO1_CONTROL_1,
				  ARIZONA_LDO1_VSEL_MASK, val);
}

static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev)
{
	struct arizona_ldo1 *ldo = rdev_get_drvdata(rdev);
	struct regmap *regmap = ldo->regmap;
	unsigned int val;
	int ret;

	ret = regmap_read(regmap, ARIZONA_LDO1_CONTROL_2, &val);
	if (ret != 0)
		return ret;

	if (val & ARIZONA_LDO1_HI_PWR)
		return rdev->desc->n_voltages - 1;

	ret = regmap_read(regmap, ARIZONA_LDO1_CONTROL_1, &val);
	if (ret != 0)
		return ret;

	return (val & ARIZONA_LDO1_VSEL_MASK) >> ARIZONA_LDO1_VSEL_SHIFT;
}

static const struct regulator_ops arizona_ldo1_hc_ops = {
	.list_voltage = arizona_ldo1_hc_list_voltage,
	.map_voltage = arizona_ldo1_hc_map_voltage,
	.get_voltage_sel = arizona_ldo1_hc_get_voltage_sel,
	.set_voltage_sel = arizona_ldo1_hc_set_voltage_sel,
	.get_bypass = regulator_get_bypass_regmap,
	.set_bypass = regulator_set_bypass_regmap,
};

static const struct regulator_desc arizona_ldo1_hc = {
	.name = "LDO1",
	.supply_name = "LDOVDD",
	.type = REGULATOR_VOLTAGE,
	.ops = &arizona_ldo1_hc_ops,

	.bypass_reg = ARIZONA_LDO1_CONTROL_1,
	.bypass_mask = ARIZONA_LDO1_BYPASS,
	.min_uV = 900000,
	.uV_step = 50000,
	.n_voltages = 8,
	.enable_time = 1500,
	.ramp_delay = 24000,

	.owner = THIS_MODULE,
};

static const struct regulator_ops arizona_ldo1_ops = {
	.list_voltage = regulator_list_voltage_linear,
	.map_voltage = regulator_map_voltage_linear,
	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,
};

static const struct regulator_desc arizona_ldo1 = {
	.name = "LDO1",
	.supply_name = "LDOVDD",
	.type = REGULATOR_VOLTAGE,
	.ops = &arizona_ldo1_ops,

	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
	.min_uV = 900000,
	.uV_step = 25000,
	.n_voltages = 13,
	.enable_time = 500,
	.ramp_delay = 24000,

	.owner = THIS_MODULE,
};

static const struct regulator_init_data arizona_ldo1_dvfs = {
	.constraints = {
		.min_uV = 1200000,
		.max_uV = 1800000,
		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
				  REGULATOR_CHANGE_VOLTAGE,
	},
	.num_consumer_supplies = 1,
};

static const struct regulator_init_data arizona_ldo1_default = {
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies = 1,
};

static const struct regulator_init_data arizona_ldo1_wm5110 = {
	.constraints = {
		.min_uV = 1175000,
		.max_uV = 1200000,
		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
				  REGULATOR_CHANGE_VOLTAGE,
	},
	.num_consumer_supplies = 1,
};

static int arizona_ldo1_of_get_pdata(struct arizona_ldo1_pdata *pdata,
				     struct regulator_config *config,
				     const struct regulator_desc *desc,
				     bool *external_dcvdd)
{
	struct arizona_ldo1 *ldo1 = config->driver_data;
	struct device_node *np = config->dev->of_node;
	struct device_node *init_node, *dcvdd_node;
	struct regulator_init_data *init_data;

	init_node = of_get_child_by_name(np, "ldo1");
	dcvdd_node = of_parse_phandle(np, "DCVDD-supply", 0);

	if (init_node) {
		config->of_node = init_node;

		init_data = of_get_regulator_init_data(config->dev, init_node,
						       desc);
		if (init_data) {
			init_data->consumer_supplies = &ldo1->supply;
			init_data->num_consumer_supplies = 1;

			if (dcvdd_node && dcvdd_node != init_node)
				*external_dcvdd = true;

			pdata->init_data = init_data;
		}
	} else if (dcvdd_node) {
		*external_dcvdd = true;
	}

	of_node_put(dcvdd_node);

	return 0;
}

static int arizona_ldo1_common_init(struct platform_device *pdev,
				    struct arizona_ldo1 *ldo1,
				    const struct regulator_desc *desc,
				    struct arizona_ldo1_pdata *pdata,
				    bool *external_dcvdd)
{
	struct device *parent_dev = pdev->dev.parent;
	struct regulator_config config = { };
	int ret;

	*external_dcvdd = false;

	ldo1->supply.supply = "DCVDD";
	ldo1->init_data.consumer_supplies = &ldo1->supply;
	ldo1->supply.dev_name = dev_name(parent_dev);

	config.dev = parent_dev;
	config.driver_data = ldo1;
	config.regmap = ldo1->regmap;

	if (IS_ENABLED(CONFIG_OF)) {
		if (!dev_get_platdata(parent_dev)) {
			ret = arizona_ldo1_of_get_pdata(pdata,
							&config, desc,
							external_dcvdd);
			if (ret < 0)
				return ret;
		}
	}

	/* We assume that high output = regulator off */
	config.ena_gpiod = devm_gpiod_get_optional(&pdev->dev, "wlf,ldoena",
						   GPIOD_OUT_HIGH);
	if (IS_ERR(config.ena_gpiod))
		return PTR_ERR(config.ena_gpiod);

	if (pdata->init_data)
		config.init_data = pdata->init_data;
	else
		config.init_data = &ldo1->init_data;

	/*
	 * LDO1 can only be used to supply DCVDD so if it has no
	 * consumers then DCVDD is supplied externally.
	 */
	if (config.init_data->num_consumer_supplies == 0)
		*external_dcvdd = true;

	ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);

	of_node_put(config.of_node);

	if (IS_ERR(ldo1->regulator)) {
		ret = PTR_ERR(ldo1->regulator);
		dev_err(&pdev->dev, "Failed to register LDO1 supply: %d\n",
			ret);
		return ret;
	}

	platform_set_drvdata(pdev, ldo1);

	return 0;
}

static int arizona_ldo1_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	struct arizona_ldo1 *ldo1;
	const struct regulator_desc *desc;
	bool external_dcvdd;
	int ret;

	ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
	if (!ldo1)
		return -ENOMEM;

	ldo1->regmap = arizona->regmap;

	/*
	 * Since the chip usually supplies itself we provide some
	 * default init_data for it.  This will be overridden with
	 * platform data if provided.
	 */
	switch (arizona->type) {
	case WM5102:
	case WM8997:
	case WM8998:
	case WM1814:
		desc = &arizona_ldo1_hc;
		ldo1->init_data = arizona_ldo1_dvfs;
		break;
	case WM5110:
	case WM8280:
		desc = &arizona_ldo1;
		ldo1->init_data = arizona_ldo1_wm5110;
		break;
	default:
		desc = &arizona_ldo1;
		ldo1->init_data = arizona_ldo1_default;
		break;
	}

	ret = arizona_ldo1_common_init(pdev, ldo1, desc,
				       &arizona->pdata.ldo1,
				       &external_dcvdd);
	if (ret == 0)
		arizona->external_dcvdd = external_dcvdd;

	return ret;
}

static struct platform_driver arizona_ldo1_driver = {
	.probe = arizona_ldo1_probe,
	.driver		= {
		.name	= "arizona-ldo1",
	},
};

module_platform_driver(arizona_ldo1_driver);

/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Arizona LDO1 driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:arizona-ldo1");
Commit	Line	Data
1910efa1 MB	1	/*
	2	* arizona-ldo1.c -- LDO1 supply for Arizona devices
	3	*
	4	* Copyright 2012 Wolfson Microelectronics PLC.
	5	*
	6	* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*/
	13
	14	#include <linux/module.h>
	15	#include <linux/moduleparam.h>
	16	#include <linux/init.h>
	17	#include <linux/bitops.h>
	18	#include <linux/err.h>
7b22b9a5	19	#include <linux/of.h>
e1739e86	20	#include <linux/gpio/consumer.h>
1910efa1 MB	21	#include <linux/platform_device.h>
	22	#include <linux/regulator/driver.h>
	23	#include <linux/regulator/machine.h>
2cce4be9	24	#include <linux/regulator/of_regulator.h>
1910efa1 MB	25	#include <linux/slab.h>
1910efa1 MB	26
aaa84e6a RF	27	#include <linux/regulator/arizona-ldo1.h>
aaa84e6a RF	28
1910efa1 MB	29	#include <linux/mfd/arizona/core.h>
	30	#include <linux/mfd/arizona/pdata.h>
	31	#include <linux/mfd/arizona/registers.h>
	32
	33	struct arizona_ldo1 {
	34	struct regulator_dev *regulator;
80a55f41	35	struct regmap *regmap;
1910efa1 MB	36
	37	struct regulator_consumer_supply supply;
	38	struct regulator_init_data init_data;
	39	};
	40
73ee2946 MB	41	static int arizona_ldo1_hc_list_voltage(struct regulator_dev *rdev,
	42	unsigned int selector)
	43	{
	44	if (selector >= rdev->desc->n_voltages)
	45	return -EINVAL;
	46
	47	if (selector == rdev->desc->n_voltages - 1)
	48	return 1800000;
	49	else
	50	return rdev->desc->min_uV + (rdev->desc->uV_step * selector);
	51	}
	52
	53	static int arizona_ldo1_hc_map_voltage(struct regulator_dev *rdev,
	54	int min_uV, int max_uV)
	55	{
	56	int sel;
	57
	58	sel = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
	59	if (sel >= rdev->desc->n_voltages)
	60	sel = rdev->desc->n_voltages - 1;
	61
	62	return sel;
	63	}
	64
	65	static int arizona_ldo1_hc_set_voltage_sel(struct regulator_dev *rdev,
	66	unsigned sel)
	67	{
	68	struct arizona_ldo1 *ldo = rdev_get_drvdata(rdev);
80a55f41	69	struct regmap *regmap = ldo->regmap;
73ee2946 MB	70	unsigned int val;
	71	int ret;
	72
	73	if (sel == rdev->desc->n_voltages - 1)
	74	val = ARIZONA_LDO1_HI_PWR;
	75	else
	76	val = 0;
	77
	78	ret = regmap_update_bits(regmap, ARIZONA_LDO1_CONTROL_2,
	79	ARIZONA_LDO1_HI_PWR, val);
	80	if (ret != 0)
	81	return ret;
	82
73ee2946 MB	83	if (val)
	84	return 0;
	85
	86	val = sel << ARIZONA_LDO1_VSEL_SHIFT;
	87
	88	return regmap_update_bits(regmap, ARIZONA_LDO1_CONTROL_1,
	89	ARIZONA_LDO1_VSEL_MASK, val);
	90	}
	91
	92	static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev)
	93	{
	94	struct arizona_ldo1 *ldo = rdev_get_drvdata(rdev);
80a55f41	95	struct regmap *regmap = ldo->regmap;
73ee2946 MB	96	unsigned int val;
	97	int ret;
	98
	99	ret = regmap_read(regmap, ARIZONA_LDO1_CONTROL_2, &val);
	100	if (ret != 0)
	101	return ret;
	102
	103	if (val & ARIZONA_LDO1_HI_PWR)
	104	return rdev->desc->n_voltages - 1;
	105
	106	ret = regmap_read(regmap, ARIZONA_LDO1_CONTROL_1, &val);
	107	if (ret != 0)
	108	return ret;
	109
	110	return (val & ARIZONA_LDO1_VSEL_MASK) >> ARIZONA_LDO1_VSEL_SHIFT;
	111	}
	112
03d06107	113	static const struct regulator_ops arizona_ldo1_hc_ops = {
73ee2946 MB	114	.list_voltage = arizona_ldo1_hc_list_voltage,
	115	.map_voltage = arizona_ldo1_hc_map_voltage,
	116	.get_voltage_sel = arizona_ldo1_hc_get_voltage_sel,
	117	.set_voltage_sel = arizona_ldo1_hc_set_voltage_sel,
	118	.get_bypass = regulator_get_bypass_regmap,
	119	.set_bypass = regulator_set_bypass_regmap,
	120	};
	121
	122	static const struct regulator_desc arizona_ldo1_hc = {
	123	.name = "LDO1",
	124	.supply_name = "LDOVDD",
	125	.type = REGULATOR_VOLTAGE,
	126	.ops = &arizona_ldo1_hc_ops,
	127
	128	.bypass_reg = ARIZONA_LDO1_CONTROL_1,
	129	.bypass_mask = ARIZONA_LDO1_BYPASS,
	130	.min_uV = 900000,
	131	.uV_step = 50000,
	132	.n_voltages = 8,
ce1bcb7e	133	.enable_time = 1500,
88f0e3a5	134	.ramp_delay = 24000,
73ee2946 MB	135
	136	.owner = THIS_MODULE,
	137	};
	138
03d06107	139	static const struct regulator_ops arizona_ldo1_ops = {
1910efa1 MB	140	.list_voltage = regulator_list_voltage_linear,
	141	.map_voltage = regulator_map_voltage_linear,
	142	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	143	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	144	};
	145
	146	static const struct regulator_desc arizona_ldo1 = {
	147	.name = "LDO1",
	148	.supply_name = "LDOVDD",
	149	.type = REGULATOR_VOLTAGE,
	150	.ops = &arizona_ldo1_ops,
	151
	152	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
	153	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
	154	.min_uV = 900000,
a35ff286 CK	155	.uV_step = 25000,
a35ff286 CK	156	.n_voltages = 13,
86a14501	157	.enable_time = 500,
88f0e3a5	158	.ramp_delay = 24000,
1910efa1 MB	159
	160	.owner = THIS_MODULE,
	161	};
	162
55a18aef MB	163	static const struct regulator_init_data arizona_ldo1_dvfs = {
	164	.constraints = {
	165	.min_uV = 1200000,
	166	.max_uV = 1800000,
	167	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
	168	REGULATOR_CHANGE_VOLTAGE,
	169	},
	170	.num_consumer_supplies = 1,
	171	};
	172
1910efa1	173	static const struct regulator_init_data arizona_ldo1_default = {
a9905b1d MB	174	.constraints = {
	175	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	176	},
1910efa1 MB	177	.num_consumer_supplies = 1,
	178	};
	179
9a6c2feb CK	180	static const struct regulator_init_data arizona_ldo1_wm5110 = {
	181	.constraints = {
	182	.min_uV = 1175000,
	183	.max_uV = 1200000,
	184	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
	185	REGULATOR_CHANGE_VOLTAGE,
	186	},
	187	.num_consumer_supplies = 1,
	188	};
	189
aaa84e6a	190	static int arizona_ldo1_of_get_pdata(struct arizona_ldo1_pdata *pdata,
072e78b1	191	struct regulator_config *config,
aaa84e6a RF	192	const struct regulator_desc *desc,
aaa84e6a RF	193	bool *external_dcvdd)
4a8c475f	194	{
2cce4be9	195	struct arizona_ldo1 *ldo1 = config->driver_data;
aaa84e6a	196	struct device_node *np = config->dev->of_node;
2cce4be9 CK	197	struct device_node init_node, dcvdd_node;
2cce4be9 CK	198	struct regulator_init_data *init_data;
4a8c475f	199
ce938001 CK	200	init_node = of_get_child_by_name(np, "ldo1");
ce938001 CK	201	dcvdd_node = of_parse_phandle(np, "DCVDD-supply", 0);
2cce4be9 CK	202
	203	if (init_node) {
	204	config->of_node = init_node;
	205
aaa84e6a RF	206	init_data = of_get_regulator_init_data(config->dev, init_node,
aaa84e6a RF	207	desc);
2cce4be9 CK	208	if (init_data) {
	209	init_data->consumer_supplies = &ldo1->supply;
	210	init_data->num_consumer_supplies = 1;
	211
	212	if (dcvdd_node && dcvdd_node != init_node)
aaa84e6a	213	*external_dcvdd = true;
2cce4be9	214
aaa84e6a	215	pdata->init_data = init_data;
2cce4be9 CK	216	}
2cce4be9 CK	217	} else if (dcvdd_node) {
aaa84e6a	218	*external_dcvdd = true;
2cce4be9 CK	219	}
	220
	221	of_node_put(dcvdd_node);
	222
4a8c475f CK	223	return 0;
	224	}
	225
af367afa RF	226	static int arizona_ldo1_common_init(struct platform_device *pdev,
	227	struct arizona_ldo1 *ldo1,
	228	const struct regulator_desc *desc,
	229	struct arizona_ldo1_pdata *pdata,
	230	bool *external_dcvdd)
1910efa1	231	{
af367afa	232	struct device *parent_dev = pdev->dev.parent;
1910efa1	233	struct regulator_config config = { };
1910efa1 MB	234	int ret;
1910efa1 MB	235
af367afa	236	*external_dcvdd = false;
55a18aef	237
1910efa1	238	ldo1->supply.supply = "DCVDD";
af367afa RF	239	ldo1->init_data.consumer_supplies = &ldo1->supply;
af367afa RF	240	ldo1->supply.dev_name = dev_name(parent_dev);
1910efa1	241
af367afa	242	config.dev = parent_dev;
1910efa1	243	config.driver_data = ldo1;
af367afa	244	config.regmap = ldo1->regmap;
4a8c475f CK	245
4a8c475f CK	246	if (IS_ENABLED(CONFIG_OF)) {
af367afa RF	247	if (!dev_get_platdata(parent_dev)) {
af367afa RF	248	ret = arizona_ldo1_of_get_pdata(pdata,
aaa84e6a	249	&config, desc,
af367afa	250	external_dcvdd);
4a8c475f CK	251	if (ret < 0)
	252	return ret;
	253	}
	254	}
	255
e1739e86 LW	256	/* We assume that high output = regulator off */
	257	config.ena_gpiod = devm_gpiod_get_optional(&pdev->dev, "wlf,ldoena",
	258	GPIOD_OUT_HIGH);
	259	if (IS_ERR(config.ena_gpiod))
	260	return PTR_ERR(config.ena_gpiod);
1910efa1	261
af367afa RF	262	if (pdata->init_data)
af367afa RF	263	config.init_data = pdata->init_data;
1910efa1 MB	264	else
	265	config.init_data = &ldo1->init_data;
	266
4a8c475f CK	267	/*
	268	* LDO1 can only be used to supply DCVDD so if it has no
	269	* consumers then DCVDD is supplied externally.
	270	*/
	271	if (config.init_data->num_consumer_supplies == 0)
af367afa	272	*external_dcvdd = true;
4a8c475f	273
14ffa888	274	ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);
ec454d70 CK	275
	276	of_node_put(config.of_node);
	277
1910efa1 MB	278	if (IS_ERR(ldo1->regulator)) {
1910efa1 MB	279	ret = PTR_ERR(ldo1->regulator);
af367afa	280	dev_err(&pdev->dev, "Failed to register LDO1 supply: %d\n",
1910efa1 MB	281	ret);
	282	return ret;
	283	}
	284
	285	platform_set_drvdata(pdev, ldo1);
	286
	287	return 0;
	288	}
	289
af367afa RF	290	static int arizona_ldo1_probe(struct platform_device *pdev)
	291	{
	292	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	293	struct arizona_ldo1 *ldo1;
	294	const struct regulator_desc *desc;
	295	bool external_dcvdd;
	296	int ret;
	297
	298	ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
	299	if (!ldo1)
	300	return -ENOMEM;
	301
	302	ldo1->regmap = arizona->regmap;
	303
	304	/*
	305	* Since the chip usually supplies itself we provide some
	306	* default init_data for it. This will be overridden with
	307	* platform data if provided.
	308	*/
	309	switch (arizona->type) {
	310	case WM5102:
	311	case WM8997:
	312	case WM8998:
	313	case WM1814:
	314	desc = &arizona_ldo1_hc;
	315	ldo1->init_data = arizona_ldo1_dvfs;
	316	break;
	317	case WM5110:
	318	case WM8280:
	319	desc = &arizona_ldo1;
	320	ldo1->init_data = arizona_ldo1_wm5110;
	321	break;
	322	default:
	323	desc = &arizona_ldo1;
	324	ldo1->init_data = arizona_ldo1_default;
	325	break;
	326	}
	327
	328	ret = arizona_ldo1_common_init(pdev, ldo1, desc,
	329	&arizona->pdata.ldo1,
	330	&external_dcvdd);
	331	if (ret == 0)
	332	arizona->external_dcvdd = external_dcvdd;
	333
	334	return ret;
	335	}
	336
1910efa1 MB	337	static struct platform_driver arizona_ldo1_driver = {
1910efa1 MB	338	.probe = arizona_ldo1_probe,
1910efa1 MB	339	.driver = {
1910efa1 MB	340	.name = "arizona-ldo1",
1910efa1 MB	341	},
	342	};
	343
	344	module_platform_driver(arizona_ldo1_driver);
	345
	346	/* Module information */
	347	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	348	MODULE_DESCRIPTION("Arizona LDO1 driver");
	349	MODULE_LICENSE("GPL");
	350	MODULE_ALIAS("platform:arizona-ldo1");