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

// SPDX-License-Identifier: GPL-2.0+
//
// arizona-micsupp.c  --  Microphone supply for Arizona devices
//
// Copyright 2012 Wolfson Microelectronics PLC.
//
// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>

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

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

struct arizona_micsupp {
	struct regulator_dev *regulator;
	struct regmap *regmap;
	struct snd_soc_dapm_context **dapm;
	const struct regulator_desc *desc;
	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;
	const struct regulator_desc *desc = micsupp->desc;
	unsigned int val;
	int ret;

	ret = regmap_read(micsupp->regmap, desc->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 & (desc->enable_mask | desc->bypass_mask)) ==
		    desc->enable_mask)
			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 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 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 const struct regulator_desc madera_micsupp = {
	.name = "MICVDD",
	.supply_name = "CPVDD1",
	.type = REGULATOR_VOLTAGE,
	.n_voltages = 40,
	.ops = &arizona_micsupp_ops,
	.vsel_reg = MADERA_LDO2_CONTROL_1,
	.vsel_mask = MADERA_LDO2_VSEL_MASK,
	.enable_reg = MADERA_MIC_CHARGE_PUMP_1,
	.enable_mask = MADERA_CPMIC_ENA,
	.bypass_reg = MADERA_MIC_CHARGE_PUMP_1,
	.bypass_mask = MADERA_CPMIC_BYPASS,

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

	.enable_time = 3000,

	.owner = THIS_MODULE,
};

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.dev_name = dev_name(micsupp->dev);
	micsupp->desc = desc;

	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, desc->enable_reg, desc->bypass_mask, 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;

	micsupp->supply.supply = "MICVDD";

	/*
	 * 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 int madera_micsupp_probe(struct platform_device *pdev)
{
	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
	struct arizona_micsupp *micsupp;

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

	micsupp->regmap = madera->regmap;
	micsupp->dapm = &madera->dapm;
	micsupp->dev = madera->dev;
	micsupp->init_data = arizona_micsupp_ext_default;

	micsupp->supply.supply = "MICVDD";

	return arizona_micsupp_common_init(pdev, micsupp, &madera_micsupp,
					   &madera->pdata.micvdd);
}

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

static struct platform_driver madera_micsupp_driver = {
	.probe = madera_micsupp_probe,
	.driver		= {
		.name	= "madera-micsupp",
	},
};

static struct platform_driver * const arizona_micsupp_drivers[] = {
	&arizona_micsupp_driver,
	&madera_micsupp_driver,
};

static int __init arizona_micsupp_init(void)
{
	return platform_register_drivers(arizona_micsupp_drivers,
					 ARRAY_SIZE(arizona_micsupp_drivers));
}
module_init(arizona_micsupp_init);

static void __exit arizona_micsupp_exit(void)
{
	platform_unregister_drivers(arizona_micsupp_drivers,
				    ARRAY_SIZE(arizona_micsupp_drivers));
}
module_exit(arizona_micsupp_exit);

/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Arizona microphone supply driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:arizona-micsupp");
MODULE_ALIAS("platform:madera-micsupp");
Commit	Line	Data
dfc0c82b AL	1	// SPDX-License-Identifier: GPL-2.0+
	2	//
	3	// arizona-micsupp.c -- Microphone supply for Arizona devices
	4	//
	5	// Copyright 2012 Wolfson Microelectronics PLC.
	6	//
	7	// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
b667a45d MB	8
	9	#include <linux/module.h>
	10	#include <linux/moduleparam.h>
	11	#include <linux/init.h>
	12	#include <linux/bitops.h>
	13	#include <linux/err.h>
6f1c9c57	14	#include <linux/of.h>
b667a45d MB	15	#include <linux/platform_device.h>
	16	#include <linux/regulator/driver.h>
	17	#include <linux/regulator/machine.h>
36bcdf1b	18	#include <linux/regulator/of_regulator.h>
b667a45d	19	#include <linux/slab.h>
e6ed9058 MB	20	#include <linux/workqueue.h>
e6ed9058 MB	21	#include <sound/soc.h>
b667a45d MB	22
	23	#include <linux/mfd/arizona/core.h>
	24	#include <linux/mfd/arizona/pdata.h>
	25	#include <linux/mfd/arizona/registers.h>
	26
7bd7916d RF	27	#include <linux/mfd/madera/core.h>
	28	#include <linux/mfd/madera/pdata.h>
	29	#include <linux/mfd/madera/registers.h>
	30
22161f3e RF	31	#include <linux/regulator/arizona-micsupp.h>
22161f3e RF	32
b667a45d MB	33	struct arizona_micsupp {
b667a45d MB	34	struct regulator_dev *regulator;
e165983e RF	35	struct regmap *regmap;
e165983e RF	36	struct snd_soc_dapm_context **dapm;
2da34b23	37	const struct regulator_desc *desc;
e165983e	38	struct device *dev;
b667a45d MB	39
	40	struct regulator_consumer_supply supply;
	41	struct regulator_init_data init_data;
e6ed9058 MB	42
e6ed9058 MB	43	struct work_struct check_cp_work;
b667a45d MB	44	};
b667a45d MB	45
e6ed9058 MB	46	static void arizona_micsupp_check_cp(struct work_struct *work)
	47	{
	48	struct arizona_micsupp *micsupp =
	49	container_of(work, struct arizona_micsupp, check_cp_work);
e165983e RF	50	struct snd_soc_dapm_context dapm = micsupp->dapm;
e165983e RF	51	struct snd_soc_component *component;
2da34b23	52	const struct regulator_desc *desc = micsupp->desc;
e165983e	53	unsigned int val;
e6ed9058 MB	54	int ret;
e6ed9058 MB	55
2da34b23	56	ret = regmap_read(micsupp->regmap, desc->enable_reg, &val);
e6ed9058	57	if (ret != 0) {
e165983e RF	58	dev_err(micsupp->dev,
e165983e RF	59	"Failed to read CP state: %d\n", ret);
e6ed9058 MB	60	return;
	61	}
	62
	63	if (dapm) {
e165983e RF	64	component = snd_soc_dapm_to_component(dapm);
e165983e RF	65
2da34b23 RF	66	if ((val & (desc->enable_mask \| desc->bypass_mask)) ==
2da34b23 RF	67	desc->enable_mask)
98cf9965 RF	68	snd_soc_component_force_enable_pin(component,
98cf9965 RF	69	"MICSUPP");
e6ed9058	70	else
98cf9965	71	snd_soc_component_disable_pin(component, "MICSUPP");
e6ed9058 MB	72
	73	snd_soc_dapm_sync(dapm);
	74	}
	75	}
	76
	77	static int arizona_micsupp_enable(struct regulator_dev *rdev)
	78	{
	79	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	80	int ret;
	81
	82	ret = regulator_enable_regmap(rdev);
	83
	84	if (ret == 0)
	85	schedule_work(&micsupp->check_cp_work);
	86
	87	return ret;
	88	}
	89
	90	static int arizona_micsupp_disable(struct regulator_dev *rdev)
	91	{
	92	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	93	int ret;
	94
	95	ret = regulator_disable_regmap(rdev);
	96	if (ret == 0)
	97	schedule_work(&micsupp->check_cp_work);
	98
	99	return ret;
	100	}
	101
	102	static int arizona_micsupp_set_bypass(struct regulator_dev *rdev, bool ena)
	103	{
	104	struct arizona_micsupp *micsupp = rdev_get_drvdata(rdev);
	105	int ret;
	106
	107	ret = regulator_set_bypass_regmap(rdev, ena);
	108	if (ret == 0)
	109	schedule_work(&micsupp->check_cp_work);
	110
	111	return ret;
	112	}
	113
2773ead1	114	static const struct regulator_ops arizona_micsupp_ops = {
e6ed9058 MB	115	.enable = arizona_micsupp_enable,
e6ed9058 MB	116	.disable = arizona_micsupp_disable,
b667a45d MB	117	.is_enabled = regulator_is_enabled_regmap,
b667a45d MB	118
71979aa3 CK	119	.list_voltage = regulator_list_voltage_linear_range,
71979aa3 CK	120	.map_voltage = regulator_map_voltage_linear_range,
b667a45d MB	121
	122	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	123	.set_voltage_sel = regulator_set_voltage_sel_regmap,
e477ce07 MB	124
e477ce07 MB	125	.get_bypass = regulator_get_bypass_regmap,
e6ed9058	126	.set_bypass = arizona_micsupp_set_bypass,
b667a45d MB	127	};
b667a45d MB	128
60ab7f41	129	static const struct linear_range arizona_micsupp_ranges[] = {
71979aa3 CK	130	REGULATOR_LINEAR_RANGE(1700000, 0, 0x1e, 50000),
	131	REGULATOR_LINEAR_RANGE(3300000, 0x1f, 0x1f, 0),
	132	};
	133
b667a45d MB	134	static const struct regulator_desc arizona_micsupp = {
	135	.name = "MICVDD",
	136	.supply_name = "CPVDD",
	137	.type = REGULATOR_VOLTAGE,
71979aa3	138	.n_voltages = 32,
b667a45d MB	139	.ops = &arizona_micsupp_ops,
	140
	141	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
	142	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
	143	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	144	.enable_mask = ARIZONA_CPMIC_ENA,
e477ce07 MB	145	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
e477ce07 MB	146	.bypass_mask = ARIZONA_CPMIC_BYPASS,
b667a45d	147
71979aa3 CK	148	.linear_ranges = arizona_micsupp_ranges,
	149	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ranges),
	150
95072818 MB	151	.enable_time = 3000,
95072818 MB	152
b667a45d MB	153	.owner = THIS_MODULE,
	154	};
	155
60ab7f41	156	static const struct linear_range arizona_micsupp_ext_ranges[] = {
d2e7491e CK	157	REGULATOR_LINEAR_RANGE(900000, 0, 0x14, 25000),
	158	REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000),
	159	};
	160
	161	static const struct regulator_desc arizona_micsupp_ext = {
	162	.name = "MICVDD",
	163	.supply_name = "CPVDD",
	164	.type = REGULATOR_VOLTAGE,
	165	.n_voltages = 40,
	166	.ops = &arizona_micsupp_ops,
	167
	168	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
	169	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
	170	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	171	.enable_mask = ARIZONA_CPMIC_ENA,
	172	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
	173	.bypass_mask = ARIZONA_CPMIC_BYPASS,
	174
	175	.linear_ranges = arizona_micsupp_ext_ranges,
	176	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
	177
	178	.enable_time = 3000,
	179
	180	.owner = THIS_MODULE,
	181	};
	182
b667a45d MB	183	static const struct regulator_init_data arizona_micsupp_default = {
	184	.constraints = {
	185	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
9fc50a2e MB	186	REGULATOR_CHANGE_VOLTAGE \|
9fc50a2e MB	187	REGULATOR_CHANGE_BYPASS,
b667a45d MB	188	.min_uV = 1700000,
	189	.max_uV = 3300000,
	190	},
	191
	192	.num_consumer_supplies = 1,
	193	};
	194
d2e7491e CK	195	static const struct regulator_init_data arizona_micsupp_ext_default = {
	196	.constraints = {
	197	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
	198	REGULATOR_CHANGE_VOLTAGE \|
	199	REGULATOR_CHANGE_BYPASS,
	200	.min_uV = 900000,
	201	.max_uV = 3300000,
	202	},
	203
	204	.num_consumer_supplies = 1,
	205	};
	206
7bd7916d RF	207	static const struct regulator_desc madera_micsupp = {
	208	.name = "MICVDD",
	209	.supply_name = "CPVDD1",
	210	.type = REGULATOR_VOLTAGE,
	211	.n_voltages = 40,
	212	.ops = &arizona_micsupp_ops,
7bd7916d RF	213	.vsel_reg = MADERA_LDO2_CONTROL_1,
	214	.vsel_mask = MADERA_LDO2_VSEL_MASK,
	215	.enable_reg = MADERA_MIC_CHARGE_PUMP_1,
	216	.enable_mask = MADERA_CPMIC_ENA,
	217	.bypass_reg = MADERA_MIC_CHARGE_PUMP_1,
	218	.bypass_mask = MADERA_CPMIC_BYPASS,
	219
	220	.linear_ranges = arizona_micsupp_ext_ranges,
	221	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
	222
	223	.enable_time = 3000,
	224
	225	.owner = THIS_MODULE,
	226	};
	227
22161f3e	228	static int arizona_micsupp_of_get_pdata(struct arizona_micsupp_pdata *pdata,
072e78b1 JMC	229	struct regulator_config *config,
072e78b1 JMC	230	const struct regulator_desc *desc)
36bcdf1b	231	{
36bcdf1b CK	232	struct arizona_micsupp *micsupp = config->driver_data;
	233	struct device_node *np;
	234	struct regulator_init_data *init_data;
	235
22161f3e	236	np = of_get_child_by_name(config->dev->of_node, "micvdd");
36bcdf1b CK	237
	238	if (np) {
	239	config->of_node = np;
	240
22161f3e	241	init_data = of_get_regulator_init_data(config->dev, np, desc);
36bcdf1b CK	242
	243	if (init_data) {
	244	init_data->consumer_supplies = &micsupp->supply;
	245	init_data->num_consumer_supplies = 1;
	246
22161f3e	247	pdata->init_data = init_data;
36bcdf1b CK	248	}
	249	}
	250
	251	return 0;
	252	}
	253
7d8d14b5 RF	254	static int arizona_micsupp_common_init(struct platform_device *pdev,
	255	struct arizona_micsupp *micsupp,
	256	const struct regulator_desc *desc,
	257	struct arizona_micsupp_pdata *pdata)
b667a45d	258	{
b667a45d	259	struct regulator_config config = { };
b667a45d MB	260	int ret;
b667a45d MB	261
e6ed9058	262	INIT_WORK(&micsupp->check_cp_work, arizona_micsupp_check_cp);
b667a45d	263
b667a45d	264	micsupp->init_data.consumer_supplies = &micsupp->supply;
7d8d14b5	265	micsupp->supply.dev_name = dev_name(micsupp->dev);
2da34b23	266	micsupp->desc = desc;
b667a45d	267
7d8d14b5	268	config.dev = micsupp->dev;
b667a45d	269	config.driver_data = micsupp;
7d8d14b5	270	config.regmap = micsupp->regmap;
b667a45d	271
36bcdf1b	272	if (IS_ENABLED(CONFIG_OF)) {
7d8d14b5	273	if (!dev_get_platdata(micsupp->dev)) {
22161f3e RF	274	ret = arizona_micsupp_of_get_pdata(pdata, &config,
22161f3e RF	275	desc);
36bcdf1b CK	276	if (ret < 0)
	277	return ret;
	278	}
	279	}
	280
22161f3e RF	281	if (pdata->init_data)
22161f3e RF	282	config.init_data = pdata->init_data;
b667a45d MB	283	else
	284	config.init_data = &micsupp->init_data;
	285
7d8d14b5	286	/* Default to regulated mode */
2da34b23	287	regmap_update_bits(micsupp->regmap, desc->enable_reg, desc->bypass_mask, 0);
6dc027c9	288
b6b7709c	289	micsupp->regulator = devm_regulator_register(&pdev->dev,
d2e7491e	290	desc,
b6b7709c	291	&config);
a7b976ae CK	292
	293	of_node_put(config.of_node);
	294
b667a45d MB	295	if (IS_ERR(micsupp->regulator)) {
b667a45d MB	296	ret = PTR_ERR(micsupp->regulator);
7d8d14b5	297	dev_err(micsupp->dev, "Failed to register mic supply: %d\n",
b667a45d MB	298	ret);
	299	return ret;
	300	}
	301
	302	platform_set_drvdata(pdev, micsupp);
	303
	304	return 0;
	305	}
	306
7d8d14b5 RF	307	static int arizona_micsupp_probe(struct platform_device *pdev)
	308	{
	309	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	310	const struct regulator_desc *desc;
	311	struct arizona_micsupp *micsupp;
	312
	313	micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
	314	if (!micsupp)
	315	return -ENOMEM;
	316
	317	micsupp->regmap = arizona->regmap;
	318	micsupp->dapm = &arizona->dapm;
	319	micsupp->dev = arizona->dev;
	320
9211402f RF	321	micsupp->supply.supply = "MICVDD";
9211402f RF	322
7d8d14b5 RF	323	/*
	324	* Since the chip usually supplies itself we provide some
	325	* default init_data for it. This will be overridden with
	326	* platform data if provided.
	327	*/
	328	switch (arizona->type) {
	329	case WM5110:
	330	case WM8280:
	331	desc = &arizona_micsupp_ext;
	332	micsupp->init_data = arizona_micsupp_ext_default;
	333	break;
	334	default:
	335	desc = &arizona_micsupp;
	336	micsupp->init_data = arizona_micsupp_default;
	337	break;
	338	}
	339
	340	return arizona_micsupp_common_init(pdev, micsupp, desc,
	341	&arizona->pdata.micvdd);
	342	}
	343
7bd7916d RF	344	static int madera_micsupp_probe(struct platform_device *pdev)
	345	{
	346	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
	347	struct arizona_micsupp *micsupp;
	348
	349	micsupp = devm_kzalloc(&pdev->dev, sizeof(*micsupp), GFP_KERNEL);
	350	if (!micsupp)
	351	return -ENOMEM;
	352
	353	micsupp->regmap = madera->regmap;
	354	micsupp->dapm = &madera->dapm;
	355	micsupp->dev = madera->dev;
	356	micsupp->init_data = arizona_micsupp_ext_default;
	357
9211402f RF	358	micsupp->supply.supply = "MICVDD";
9211402f RF	359
7bd7916d RF	360	return arizona_micsupp_common_init(pdev, micsupp, &madera_micsupp,
	361	&madera->pdata.micvdd);
	362	}
	363
b667a45d MB	364	static struct platform_driver arizona_micsupp_driver = {
b667a45d MB	365	.probe = arizona_micsupp_probe,
b667a45d MB	366	.driver = {
b667a45d MB	367	.name = "arizona-micsupp",
b667a45d MB	368	},
	369	};
	370
7bd7916d RF	371	static struct platform_driver madera_micsupp_driver = {
	372	.probe = madera_micsupp_probe,
	373	.driver = {
	374	.name = "madera-micsupp",
	375	},
	376	};
	377
	378	static struct platform_driver * const arizona_micsupp_drivers[] = {
	379	&arizona_micsupp_driver,
	380	&madera_micsupp_driver,
	381	};
	382
	383	static int __init arizona_micsupp_init(void)
	384	{
	385	return platform_register_drivers(arizona_micsupp_drivers,
	386	ARRAY_SIZE(arizona_micsupp_drivers));
	387	}
	388	module_init(arizona_micsupp_init);
	389
	390	static void __exit arizona_micsupp_exit(void)
	391	{
	392	platform_unregister_drivers(arizona_micsupp_drivers,
	393	ARRAY_SIZE(arizona_micsupp_drivers));
	394	}
	395	module_exit(arizona_micsupp_exit);
b667a45d MB	396
	397	/* Module information */
	398	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	399	MODULE_DESCRIPTION("Arizona microphone supply driver");
	400	MODULE_LICENSE("GPL");
	401	MODULE_ALIAS("platform:arizona-micsupp");
7bd7916d	402	MODULE_ALIAS("platform:madera-micsupp");