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

/*
 * arizona-micsupp.c  --  Microphone 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/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <sound/soc.h>

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

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

struct arizona_micsupp {
	struct regulator_dev *regulator;
	struct regmap *regmap;
	struct snd_soc_dapm_context **dapm;
	unsigned int enable_reg;
	struct device *dev;

	struct regulator_consumer_supply supply;
	struct regulator_init_data init_data;

	struct work_struct check_cp_work;
};

static void arizona_micsupp_check_cp(struct work_struct *work)
{
	struct arizona_micsupp *micsupp =
		container_of(work, struct arizona_micsupp, check_cp_work);
	struct snd_soc_dapm_context *dapm = *micsupp->dapm;
	struct snd_soc_component *component;
	unsigned int val;
	int ret;

	ret = regmap_read(micsupp->regmap, micsupp->enable_reg, &val);
	if (ret != 0) {
		dev_err(micsupp->dev,
			"Failed to read CP state: %d\n", ret);
		return;
	}

	if (dapm) {
		component = snd_soc_dapm_to_component(dapm);

		if ((val & (ARIZONA_CPMIC_ENA | ARIZONA_CPMIC_BYPASS)) ==
		    ARIZONA_CPMIC_ENA)
			snd_soc_component_force_enable_pin(component,
							   "MICSUPP");
		else
			snd_soc_component_disable_pin(component, "MICSUPP");

		snd_soc_dapm_sync(dapm);
	}
}

static int arizona_micsupp_enable(struct regulator_dev *rdev)
{
	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	int ret;

	ret = regulator_enable_regmap(rdev);

	if (ret == 0)
		schedule_work(&micsupp->check_cp_work);

	return ret;
}

static int arizona_micsupp_disable(struct regulator_dev *rdev)
{
	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	int ret;

	ret = regulator_disable_regmap(rdev);
	if (ret == 0)
		schedule_work(&micsupp->check_cp_work);

	return ret;
}

static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena)
{
	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	int ret;

	ret = regulator_set_bypass_regmap(rdev, ena);
	if (ret == 0)
		schedule_work(&micsupp->check_cp_work);

	return ret;
}

static const struct regulator_ops arizona_micsupp_ops = {
	.enable = arizona_micsupp_enable,
	.disable = arizona_micsupp_disable,
	.is_enabled = regulator_is_enabled_regmap,

	.list_voltage = regulator_list_voltage_linear_range,
	.map_voltage = regulator_map_voltage_linear_range,

	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	.set_voltage_sel = regulator_set_voltage_sel_regmap,

	.get_bypass = regulator_get_bypass_regmap,
	.set_bypass = arizona_micsupp_set_bypass,
};

static const struct regulator_linear_range arizona_micsupp_ranges[] = {
	REGULATOR_LINEAR_RANGE(1700000, 0,    0x1e, 50000),
	REGULATOR_LINEAR_RANGE(3300000, 0x1f, 0x1f, 0),
};

static const struct regulator_desc arizona_micsupp = {
	.name = "MICVDD",
	.supply_name = "CPVDD",
	.type = REGULATOR_VOLTAGE,
	.n_voltages = 32,
	.ops = &arizona_micsupp_ops,

	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	.enable_mask = ARIZONA_CPMIC_ENA,
	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	.bypass_mask = ARIZONA_CPMIC_BYPASS,

	.linear_ranges = arizona_micsupp_ranges,
	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ranges),

	.enable_time = 3000,

	.owner = THIS_MODULE,
};

static const struct regulator_linear_range arizona_micsupp_ext_ranges[] = {
	REGULATOR_LINEAR_RANGE(900000,  0,    0x14, 25000),
	REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000),
};

static const struct regulator_desc arizona_micsupp_ext = {
	.name = "MICVDD",
	.supply_name = "CPVDD",
	.type = REGULATOR_VOLTAGE,
	.n_voltages = 40,
	.ops = &arizona_micsupp_ops,

	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	.enable_mask = ARIZONA_CPMIC_ENA,
	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	.bypass_mask = ARIZONA_CPMIC_BYPASS,

	.linear_ranges = arizona_micsupp_ext_ranges,
	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),

	.enable_time = 3000,

	.owner = THIS_MODULE,
};

static const struct regulator_init_data arizona_micsupp_default = {
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
				REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_BYPASS,
		.min_uV = 1700000,
		.max_uV = 3300000,
	},

	.num_consumer_supplies = 1,
};

static const struct regulator_init_data arizona_micsupp_ext_default = {
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
				REGULATOR_CHANGE_VOLTAGE |
				REGULATOR_CHANGE_BYPASS,
		.min_uV = 900000,
		.max_uV = 3300000,
	},

	.num_consumer_supplies = 1,
};

static int arizona_micsupp_of_get_pdata(struct arizona_micsupp_pdata *pdata,
					struct regulator_config *config,
					const struct regulator_desc *desc)
{
	struct arizona_micsupp *micsupp = config->driver_data;
	struct device_node *np;
	struct regulator_init_data *init_data;

	np = of_get_child_by_name(config->dev->of_node, "micvdd");

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

		init_data = of_get_regulator_init_data(config->dev, np, desc);

		if (init_data) {
			init_data->consumer_supplies = &micsupp->supply;
			init_data->num_consumer_supplies = 1;

			pdata->init_data = init_data;
		}
	}

	return 0;
}

static int arizona_micsupp_common_init(struct platform_device *pdev,
				       struct arizona_micsupp *micsupp,
				       const struct regulator_desc *desc,
				       struct arizona_micsupp_pdata *pdata)
{
	struct regulator_config config = { };
	int ret;

	INIT_WORK(&micsupp->check_cp_work, arizona_micsupp_check_cp);

	micsupp->init_data.consumer_supplies = &micsupp->supply;
	micsupp->supply.supply = "MICVDD";
	micsupp->supply.dev_name = dev_name(micsupp->dev);
	micsupp->enable_reg = desc->enable_reg;

	config.dev = micsupp->dev;
	config.driver_data = micsupp;
	config.regmap = micsupp->regmap;

	if (IS_ENABLED(CONFIG_OF)) {
		if (!dev_get_platdata(micsupp->dev)) {
			ret = arizona_micsupp_of_get_pdata(pdata, &config,
							   desc);
			if (ret < 0)
				return ret;
		}
	}

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

	/* Default to regulated mode */
	regmap_update_bits(micsupp->regmap, micsupp->enable_reg,
			   ARIZONA_CPMIC_BYPASS, 0);

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

	of_node_put(config.of_node);

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

	platform_set_drvdata(pdev, micsupp);

	return 0;
}

static int arizona_micsupp_probe(struct platform_device *pdev)
{
	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	const struct regulator_desc *desc;
	struct arizona_micsupp *micsupp;

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

	micsupp->regmap = arizona->regmap;
	micsupp->dapm = &arizona->dapm;
	micsupp->dev = arizona->dev;

	/*
	 * 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 WM5110:
	case WM8280:
		desc = &arizona_micsupp_ext;
		micsupp->init_data = arizona_micsupp_ext_default;
		break;
	default:
		desc = &arizona_micsupp;
		micsupp->init_data = arizona_micsupp_default;
		break;
	}

	return arizona_micsupp_common_init(pdev, micsupp, desc,
					   &arizona->pdata.micvdd);
}

static struct platform_driver arizona_micsupp_driver = {
	.probe = arizona_micsupp_probe,
	.driver		= {
		.name	= "arizona-micsupp",
	},
};

module_platform_driver(arizona_micsupp_driver);

/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Arizona microphone supply driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:arizona-micsupp");
Commit	Line	Data
b667a45d MB	1	/*
	2	* arizona-micsupp.c -- Microphone 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>
6f1c9c57	19	#include <linux/of.h>
b667a45d MB	20	#include <linux/platform_device.h>
	21	#include <linux/regulator/driver.h>
	22	#include <linux/regulator/machine.h>
36bcdf1b	23	#include <linux/regulator/of_regulator.h>
b667a45d MB	24	#include <linux/gpio.h>
b667a45d MB	25	#include <linux/slab.h>
e6ed9058 MB	26	#include <linux/workqueue.h>
e6ed9058 MB	27	#include <sound/soc.h>
b667a45d MB	28
	29	#include <linux/mfd/arizona/core.h>
	30	#include <linux/mfd/arizona/pdata.h>
	31	#include <linux/mfd/arizona/registers.h>
	32
22161f3e RF	33	#include <linux/regulator/arizona-micsupp.h>
22161f3e RF	34
b667a45d MB	35	struct arizona_micsupp {
b667a45d MB	36	struct regulator_dev *regulator;
e165983e RF	37	struct regmap *regmap;
	38	struct snd_soc_dapm_context **dapm;
	39	unsigned int enable_reg;
	40	struct device *dev;
b667a45d MB	41
	42	struct regulator_consumer_supply supply;
	43	struct regulator_init_data init_data;
e6ed9058 MB	44
e6ed9058 MB	45	struct work_struct check_cp_work;
b667a45d MB	46	};
b667a45d MB	47
e6ed9058 MB	48	static void arizona_micsupp_check_cp(struct work_struct *work)
	49	{
	50	struct arizona_micsupp *micsupp =
	51	container_of(work, struct arizona_micsupp, check_cp_work);
e165983e RF	52	struct snd_soc_dapm_context dapm = micsupp->dapm;
	53	struct snd_soc_component *component;
	54	unsigned int val;
e6ed9058 MB	55	int ret;
e6ed9058 MB	56
e165983e	57	ret = regmap_read(micsupp->regmap, micsupp->enable_reg, &val);
e6ed9058	58	if (ret != 0) {
e165983e RF	59	dev_err(micsupp->dev,
e165983e RF	60	"Failed to read CP state: %d\n", ret);
e6ed9058 MB	61	return;
	62	}
	63
	64	if (dapm) {
e165983e RF	65	component = snd_soc_dapm_to_component(dapm);
	66
	67	if ((val & (ARIZONA_CPMIC_ENA \| ARIZONA_CPMIC_BYPASS)) ==
e6ed9058	68	ARIZONA_CPMIC_ENA)
98cf9965 RF	69	snd_soc_component_force_enable_pin(component,
98cf9965 RF	70	"MICSUPP");
e6ed9058	71	else
98cf9965	72	snd_soc_component_disable_pin(component, "MICSUPP");
e6ed9058 MB	73
	74	snd_soc_dapm_sync(dapm);
	75	}
	76	}
	77
	78	static int arizona_micsupp_enable(struct regulator_dev *rdev)
	79	{
	80	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	81	int ret;
	82
	83	ret = regulator_enable_regmap(rdev);
	84
	85	if (ret == 0)
	86	schedule_work(&micsupp->check_cp_work);
	87
	88	return ret;
	89	}
	90
	91	static int arizona_micsupp_disable(struct regulator_dev *rdev)
	92	{
	93	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	94	int ret;
	95
	96	ret = regulator_disable_regmap(rdev);
	97	if (ret == 0)
	98	schedule_work(&micsupp->check_cp_work);
	99
	100	return ret;
	101	}
	102
	103	static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena)
	104	{
	105	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	106	int ret;
	107
	108	ret = regulator_set_bypass_regmap(rdev, ena);
	109	if (ret == 0)
	110	schedule_work(&micsupp->check_cp_work);
	111
	112	return ret;
	113	}
	114
2773ead1	115	static const struct regulator_ops arizona_micsupp_ops = {
e6ed9058 MB	116	.enable = arizona_micsupp_enable,
e6ed9058 MB	117	.disable = arizona_micsupp_disable,
b667a45d MB	118	.is_enabled = regulator_is_enabled_regmap,
b667a45d MB	119
71979aa3 CK	120	.list_voltage = regulator_list_voltage_linear_range,
71979aa3 CK	121	.map_voltage = regulator_map_voltage_linear_range,
b667a45d MB	122
	123	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	124	.set_voltage_sel = regulator_set_voltage_sel_regmap,
e477ce07 MB	125
e477ce07 MB	126	.get_bypass = regulator_get_bypass_regmap,
e6ed9058	127	.set_bypass = arizona_micsupp_set_bypass,
b667a45d MB	128	};
b667a45d MB	129
71979aa3 CK	130	static const struct regulator_linear_range arizona_micsupp_ranges[] = {
	131	REGULATOR_LINEAR_RANGE(1700000, 0, 0x1e, 50000),
	132	REGULATOR_LINEAR_RANGE(3300000, 0x1f, 0x1f, 0),
	133	};
	134
b667a45d MB	135	static const struct regulator_desc arizona_micsupp = {
	136	.name = "MICVDD",
	137	.supply_name = "CPVDD",
	138	.type = REGULATOR_VOLTAGE,
71979aa3	139	.n_voltages = 32,
b667a45d MB	140	.ops = &arizona_micsupp_ops,
	141
	142	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
	143	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
	144	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	145	.enable_mask = ARIZONA_CPMIC_ENA,
e477ce07 MB	146	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
e477ce07 MB	147	.bypass_mask = ARIZONA_CPMIC_BYPASS,
b667a45d	148
71979aa3 CK	149	.linear_ranges = arizona_micsupp_ranges,
	150	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ranges),
	151
95072818 MB	152	.enable_time = 3000,
95072818 MB	153
b667a45d MB	154	.owner = THIS_MODULE,
	155	};
	156
d2e7491e CK	157	static const struct regulator_linear_range arizona_micsupp_ext_ranges[] = {
	158	REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000),
	159	REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000),
	160	};
	161
	162	static const struct regulator_desc arizona_micsupp_ext = {
	163	.name = "MICVDD",
	164	.supply_name = "CPVDD",
	165	.type = REGULATOR_VOLTAGE,
	166	.n_voltages = 40,
	167	.ops = &arizona_micsupp_ops,
	168
	169	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
	170	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
	171	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	172	.enable_mask = ARIZONA_CPMIC_ENA,
	173	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	174	.bypass_mask = ARIZONA_CPMIC_BYPASS,
	175
	176	.linear_ranges = arizona_micsupp_ext_ranges,
	177	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
	178
	179	.enable_time = 3000,
	180
	181	.owner = THIS_MODULE,
	182	};
	183
b667a45d MB	184	static const struct regulator_init_data arizona_micsupp_default = {
	185	.constraints = {
	186	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
9fc50a2e MB	187	REGULATOR_CHANGE_VOLTAGE \|
9fc50a2e MB	188	REGULATOR_CHANGE_BYPASS,
b667a45d MB	189	.min_uV = 1700000,
	190	.max_uV = 3300000,
	191	},
	192
	193	.num_consumer_supplies = 1,
	194	};
	195
d2e7491e CK	196	static const struct regulator_init_data arizona_micsupp_ext_default = {
	197	.constraints = {
	198	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
	199	REGULATOR_CHANGE_VOLTAGE \|
	200	REGULATOR_CHANGE_BYPASS,
	201	.min_uV = 900000,
	202	.max_uV = 3300000,
	203	},
	204
	205	.num_consumer_supplies = 1,
	206	};
	207
22161f3e	208	static int arizona_micsupp_of_get_pdata(struct arizona_micsupp_pdata *pdata,
072e78b1 JMC	209	struct regulator_config *config,
072e78b1 JMC	210	const struct regulator_desc *desc)
36bcdf1b	211	{
36bcdf1b CK	212	struct arizona_micsupp *micsupp = config->driver_data;
	213	struct device_node *np;
	214	struct regulator_init_data *init_data;
	215
22161f3e	216	np = of_get_child_by_name(config->dev->of_node, "micvdd");
36bcdf1b CK	217
	218	if (np) {
	219	config->of_node = np;
	220
22161f3e	221	init_data = of_get_regulator_init_data(config->dev, np, desc);
36bcdf1b CK	222
	223	if (init_data) {
	224	init_data->consumer_supplies = &micsupp->supply;
	225	init_data->num_consumer_supplies = 1;
	226
22161f3e	227	pdata->init_data = init_data;
36bcdf1b CK	228	}
	229	}
	230
	231	return 0;
	232	}
	233
7d8d14b5 RF	234	static int arizona_micsupp_common_init(struct platform_device *pdev,
	235	struct arizona_micsupp *micsupp,
	236	const struct regulator_desc *desc,
	237	struct arizona_micsupp_pdata *pdata)
b667a45d	238	{
b667a45d	239	struct regulator_config config = { };
b667a45d MB	240	int ret;
b667a45d MB	241
e6ed9058	242	INIT_WORK(&micsupp->check_cp_work, arizona_micsupp_check_cp);
b667a45d	243
b667a45d MB	244	micsupp->init_data.consumer_supplies = &micsupp->supply;
b667a45d MB	245	micsupp->supply.supply = "MICVDD";
7d8d14b5	246	micsupp->supply.dev_name = dev_name(micsupp->dev);
e165983e	247	micsupp->enable_reg = desc->enable_reg;
b667a45d	248
7d8d14b5	249	config.dev = micsupp->dev;
b667a45d	250	config.driver_data = micsupp;
7d8d14b5	251	config.regmap = micsupp->regmap;
b667a45d	252
36bcdf1b	253	if (IS_ENABLED(CONFIG_OF)) {
7d8d14b5	254	if (!dev_get_platdata(micsupp->dev)) {
22161f3e RF	255	ret = arizona_micsupp_of_get_pdata(pdata, &config,
22161f3e RF	256	desc);
36bcdf1b CK	257	if (ret < 0)
	258	return ret;
	259	}
	260	}
	261
22161f3e RF	262	if (pdata->init_data)
22161f3e RF	263	config.init_data = pdata->init_data;
b667a45d MB	264	else
	265	config.init_data = &micsupp->init_data;
	266
7d8d14b5 RF	267	/* Default to regulated mode */
7d8d14b5 RF	268	regmap_update_bits(micsupp->regmap, micsupp->enable_reg,
6dc027c9 MB	269	ARIZONA_CPMIC_BYPASS, 0);
6dc027c9 MB	270
b6b7709c	271	micsupp->regulator = devm_regulator_register(&pdev->dev,
d2e7491e	272	desc,
b6b7709c	273	&config);
a7b976ae CK	274
	275	of_node_put(config.of_node);
	276
b667a45d MB	277	if (IS_ERR(micsupp->regulator)) {
b667a45d MB	278	ret = PTR_ERR(micsupp->regulator);
7d8d14b5	279	dev_err(micsupp->dev, "Failed to register mic supply: %d\n",
b667a45d MB	280	ret);
	281	return ret;
	282	}
	283
	284	platform_set_drvdata(pdev, micsupp);
	285
	286	return 0;
	287	}
	288
7d8d14b5 RF	289	static int arizona_micsupp_probe(struct platform_device *pdev)
	290	{
	291	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	292	const struct regulator_desc *desc;
	293	struct arizona_micsupp *micsupp;
	294
	295	micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
	296	if (!micsupp)
	297	return -ENOMEM;
	298
	299	micsupp->regmap = arizona->regmap;
	300	micsupp->dapm = &arizona->dapm;
	301	micsupp->dev = arizona->dev;
	302
	303	/*
	304	* Since the chip usually supplies itself we provide some
	305	* default init_data for it. This will be overridden with
	306	* platform data if provided.
	307	*/
	308	switch (arizona->type) {
	309	case WM5110:
	310	case WM8280:
	311	desc = &arizona_micsupp_ext;
	312	micsupp->init_data = arizona_micsupp_ext_default;
	313	break;
	314	default:
	315	desc = &arizona_micsupp;
	316	micsupp->init_data = arizona_micsupp_default;
	317	break;
	318	}
	319
	320	return arizona_micsupp_common_init(pdev, micsupp, desc,
	321	&arizona->pdata.micvdd);
	322	}
	323
b667a45d MB	324	static struct platform_driver arizona_micsupp_driver = {
b667a45d MB	325	.probe = arizona_micsupp_probe,
b667a45d MB	326	.driver = {
b667a45d MB	327	.name = "arizona-micsupp",
b667a45d MB	328	},
	329	};
	330
	331	module_platform_driver(arizona_micsupp_driver);
	332
	333	/* Module information */
	334	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	335	MODULE_DESCRIPTION("Arizona microphone supply driver");
	336	MODULE_LICENSE("GPL");
	337	MODULE_ALIAS("platform:arizona-micsupp");