[mirror_ubuntu-jammy-kernel.git] / drivers / regulator / arizona-ldo1.c

// SPDX-License-Identifier: GPL-2.0+
//
// arizona-ldo1.c  --  LDO1 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/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>

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

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

	struct regulator_consumer_supply supply;
	struct regulator_init_data init_data;

	struct gpio_desc *ena_gpiod;
};

static int arizona_ldo1_hc_set_voltage_sel(struct regulator_dev *rdev,
					   unsigned sel)
{
	struct regmap *regmap = rdev_get_regmap(rdev);
	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;

	return regulator_set_voltage_sel_regmap(rdev, sel);
}

static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev)
{
	struct regmap *regmap = rdev_get_regmap(rdev);
	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;

	return regulator_get_voltage_sel_regmap(rdev);
}

static const struct regulator_ops arizona_ldo1_hc_ops = {
	.list_voltage = regulator_list_voltage_linear_range,
	.map_voltage = regulator_map_voltage_linear_range,
	.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_linear_range arizona_ldo1_hc_ranges[] = {
	REGULATOR_LINEAR_RANGE(900000, 0, 0x6, 50000),
	REGULATOR_LINEAR_RANGE(1800000, 0x7, 0x7, 0),
};

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

	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
	.bypass_reg = ARIZONA_LDO1_CONTROL_1,
	.bypass_mask = ARIZONA_LDO1_BYPASS,
	.linear_ranges = arizona_ldo1_hc_ranges,
	.n_linear_ranges = ARRAY_SIZE(arizona_ldo1_hc_ranges),
	.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 const struct regulator_desc madera_ldo1 = {
	.name = "LDO1",
	.supply_name = "LDOVDD",
	.type = REGULATOR_VOLTAGE,
	.ops = &arizona_ldo1_ops,

	.vsel_reg = MADERA_LDO1_CONTROL_1,
	.vsel_mask = MADERA_LDO1_VSEL_MASK,
	.min_uV = 900000,
	.uV_step = 25000,
	.n_voltages = 13,
	.enable_time = 3000,

	.owner = THIS_MODULE,
};

static const struct regulator_init_data madera_ldo1_default = {
	.constraints = {
		.min_uV = 1200000,
		.max_uV = 1200000,
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.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
	 * Don't use devm, since we need to get against the parent device
	 * so clean up would happen at the wrong time
	 */
	config.ena_gpiod = gpiod_get_optional(parent_dev, "wlf,ldoena",
				GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
	if (IS_ERR(config.ena_gpiod))
		return PTR_ERR(config.ena_gpiod);

	ldo1->ena_gpiod = 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 int arizona_ldo1_remove(struct platform_device *pdev)
{
	struct arizona_ldo1 *ldo1 = platform_get_drvdata(pdev);

	if (ldo1->ena_gpiod)
		gpiod_put(ldo1->ena_gpiod);

	return 0;
}

static int madera_ldo1_probe(struct platform_device *pdev)
{
	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
	struct arizona_ldo1 *ldo1;
	bool external_dcvdd;
	int ret;

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

	ldo1->regmap = madera->regmap;

	ldo1->init_data = madera_ldo1_default;

	ret = arizona_ldo1_common_init(pdev, ldo1, &madera_ldo1,
				       &madera->pdata.ldo1,
				       &external_dcvdd);
	if (ret)
		return ret;

	madera->internal_dcvdd = !external_dcvdd;

	return 0;
}

static struct platform_driver arizona_ldo1_driver = {
	.probe = arizona_ldo1_probe,
	.remove = arizona_ldo1_remove,
	.driver		= {
		.name	= "arizona-ldo1",
	},
};

static struct platform_driver madera_ldo1_driver = {
	.probe = madera_ldo1_probe,
	.remove = arizona_ldo1_remove,
	.driver		= {
		.name	= "madera-ldo1",
	},
};

static struct platform_driver * const madera_ldo1_drivers[] = {
	&arizona_ldo1_driver,
	&madera_ldo1_driver,
};

static int __init arizona_ldo1_init(void)
{
	return platform_register_drivers(madera_ldo1_drivers,
					 ARRAY_SIZE(madera_ldo1_drivers));
}
module_init(arizona_ldo1_init);

static void __exit madera_ldo1_exit(void)
{
	platform_unregister_drivers(madera_ldo1_drivers,
				    ARRAY_SIZE(madera_ldo1_drivers));
}
module_exit(madera_ldo1_exit);

/* Module information */
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Arizona LDO1 driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:arizona-ldo1");
MODULE_ALIAS("platform:madera-ldo1");
Commit	Line	Data
dfc0c82b AL	1	// SPDX-License-Identifier: GPL-2.0+
	2	//
	3	// arizona-ldo1.c -- LDO1 supply for Arizona devices
	4	//
	5	// Copyright 2012 Wolfson Microelectronics PLC.
	6	//
	7	// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
1910efa1 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>
7b22b9a5	14	#include <linux/of.h>
e1739e86	15	#include <linux/gpio/consumer.h>
1910efa1 MB	16	#include <linux/platform_device.h>
	17	#include <linux/regulator/driver.h>
	18	#include <linux/regulator/machine.h>
2cce4be9	19	#include <linux/regulator/of_regulator.h>
1910efa1 MB	20	#include <linux/slab.h>
1910efa1 MB	21
aaa84e6a RF	22	#include <linux/regulator/arizona-ldo1.h>
aaa84e6a RF	23
1910efa1 MB	24	#include <linux/mfd/arizona/core.h>
	25	#include <linux/mfd/arizona/pdata.h>
	26	#include <linux/mfd/arizona/registers.h>
	27
1f5f11e7 RF	28	#include <linux/mfd/madera/core.h>
	29	#include <linux/mfd/madera/pdata.h>
	30	#include <linux/mfd/madera/registers.h>
	31
1910efa1 MB	32	struct arizona_ldo1 {
1910efa1 MB	33	struct regulator_dev *regulator;
80a55f41	34	struct regmap *regmap;
1910efa1 MB	35
	36	struct regulator_consumer_supply supply;
	37	struct regulator_init_data init_data;
a9191579 CK	38
a9191579 CK	39	struct gpio_desc *ena_gpiod;
1910efa1 MB	40	};
1910efa1 MB	41
73ee2946 MB	42	static int arizona_ldo1_hc_set_voltage_sel(struct regulator_dev *rdev,
	43	unsigned sel)
	44	{
5db2efbe	45	struct regmap *regmap = rdev_get_regmap(rdev);
73ee2946 MB	46	unsigned int val;
	47	int ret;
	48
	49	if (sel == rdev->desc->n_voltages - 1)
	50	val = ARIZONA_LDO1_HI_PWR;
	51	else
	52	val = 0;
	53
	54	ret = regmap_update_bits(regmap, ARIZONA_LDO1_CONTROL_2,
	55	ARIZONA_LDO1_HI_PWR, val);
	56	if (ret != 0)
	57	return ret;
	58
73ee2946 MB	59	if (val)
	60	return 0;
	61
5db2efbe	62	return regulator_set_voltage_sel_regmap(rdev, sel);
73ee2946 MB	63	}
	64
	65	static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev)
	66	{
5db2efbe	67	struct regmap *regmap = rdev_get_regmap(rdev);
73ee2946 MB	68	unsigned int val;
	69	int ret;
	70
	71	ret = regmap_read(regmap, ARIZONA_LDO1_CONTROL_2, &val);
	72	if (ret != 0)
	73	return ret;
	74
	75	if (val & ARIZONA_LDO1_HI_PWR)
	76	return rdev->desc->n_voltages - 1;
	77
5db2efbe	78	return regulator_get_voltage_sel_regmap(rdev);
73ee2946 MB	79	}
73ee2946 MB	80
03d06107	81	static const struct regulator_ops arizona_ldo1_hc_ops = {
37b9ef9c AL	82	.list_voltage = regulator_list_voltage_linear_range,
37b9ef9c AL	83	.map_voltage = regulator_map_voltage_linear_range,
73ee2946 MB	84	.get_voltage_sel = arizona_ldo1_hc_get_voltage_sel,
	85	.set_voltage_sel = arizona_ldo1_hc_set_voltage_sel,
	86	.get_bypass = regulator_get_bypass_regmap,
	87	.set_bypass = regulator_set_bypass_regmap,
	88	};
	89
37b9ef9c AL	90	static const struct regulator_linear_range arizona_ldo1_hc_ranges[] = {
	91	REGULATOR_LINEAR_RANGE(900000, 0, 0x6, 50000),
	92	REGULATOR_LINEAR_RANGE(1800000, 0x7, 0x7, 0),
	93	};
	94
73ee2946 MB	95	static const struct regulator_desc arizona_ldo1_hc = {
	96	.name = "LDO1",
	97	.supply_name = "LDOVDD",
	98	.type = REGULATOR_VOLTAGE,
	99	.ops = &arizona_ldo1_hc_ops,
	100
5db2efbe AL	101	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
5db2efbe AL	102	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
73ee2946 MB	103	.bypass_reg = ARIZONA_LDO1_CONTROL_1,
73ee2946 MB	104	.bypass_mask = ARIZONA_LDO1_BYPASS,
37b9ef9c AL	105	.linear_ranges = arizona_ldo1_hc_ranges,
37b9ef9c AL	106	.n_linear_ranges = ARRAY_SIZE(arizona_ldo1_hc_ranges),
73ee2946	107	.n_voltages = 8,
ce1bcb7e	108	.enable_time = 1500,
88f0e3a5	109	.ramp_delay = 24000,
73ee2946 MB	110
	111	.owner = THIS_MODULE,
	112	};
	113
03d06107	114	static const struct regulator_ops arizona_ldo1_ops = {
1910efa1 MB	115	.list_voltage = regulator_list_voltage_linear,
	116	.map_voltage = regulator_map_voltage_linear,
	117	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	118	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	119	};
	120
	121	static const struct regulator_desc arizona_ldo1 = {
	122	.name = "LDO1",
	123	.supply_name = "LDOVDD",
	124	.type = REGULATOR_VOLTAGE,
	125	.ops = &arizona_ldo1_ops,
	126
	127	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
	128	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
	129	.min_uV = 900000,
a35ff286 CK	130	.uV_step = 25000,
a35ff286 CK	131	.n_voltages = 13,
86a14501	132	.enable_time = 500,
88f0e3a5	133	.ramp_delay = 24000,
1910efa1 MB	134
	135	.owner = THIS_MODULE,
	136	};
	137
55a18aef MB	138	static const struct regulator_init_data arizona_ldo1_dvfs = {
	139	.constraints = {
	140	.min_uV = 1200000,
	141	.max_uV = 1800000,
	142	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
	143	REGULATOR_CHANGE_VOLTAGE,
	144	},
	145	.num_consumer_supplies = 1,
	146	};
	147
1910efa1	148	static const struct regulator_init_data arizona_ldo1_default = {
a9905b1d MB	149	.constraints = {
	150	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	151	},
1910efa1 MB	152	.num_consumer_supplies = 1,
	153	};
	154
9a6c2feb CK	155	static const struct regulator_init_data arizona_ldo1_wm5110 = {
	156	.constraints = {
	157	.min_uV = 1175000,
	158	.max_uV = 1200000,
	159	.valid_ops_mask = REGULATOR_CHANGE_STATUS \|
	160	REGULATOR_CHANGE_VOLTAGE,
	161	},
	162	.num_consumer_supplies = 1,
	163	};
	164
1f5f11e7 RF	165	static const struct regulator_desc madera_ldo1 = {
	166	.name = "LDO1",
	167	.supply_name = "LDOVDD",
	168	.type = REGULATOR_VOLTAGE,
	169	.ops = &arizona_ldo1_ops,
	170
	171	.vsel_reg = MADERA_LDO1_CONTROL_1,
	172	.vsel_mask = MADERA_LDO1_VSEL_MASK,
	173	.min_uV = 900000,
	174	.uV_step = 25000,
	175	.n_voltages = 13,
	176	.enable_time = 3000,
	177
	178	.owner = THIS_MODULE,
	179	};
	180
	181	static const struct regulator_init_data madera_ldo1_default = {
	182	.constraints = {
	183	.min_uV = 1200000,
	184	.max_uV = 1200000,
	185	.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	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
a9191579 CK	256	/* We assume that high output = regulator off
	257	* Don't use devm, since we need to get against the parent device
	258	* so clean up would happen at the wrong time
	259	*/
	260	config.ena_gpiod = gpiod_get_optional(parent_dev, "wlf,ldoena",
63239e4b	261	GPIOD_OUT_LOW \| GPIOD_FLAGS_BIT_NONEXCLUSIVE);
e1739e86 LW	262	if (IS_ERR(config.ena_gpiod))
e1739e86 LW	263	return PTR_ERR(config.ena_gpiod);
1910efa1	264
a9191579 CK	265	ldo1->ena_gpiod = config.ena_gpiod;
a9191579 CK	266
af367afa RF	267	if (pdata->init_data)
af367afa RF	268	config.init_data = pdata->init_data;
1910efa1 MB	269	else
	270	config.init_data = &ldo1->init_data;
	271
4a8c475f CK	272	/*
	273	* LDO1 can only be used to supply DCVDD so if it has no
	274	* consumers then DCVDD is supplied externally.
	275	*/
	276	if (config.init_data->num_consumer_supplies == 0)
af367afa	277	*external_dcvdd = true;
4a8c475f	278
14ffa888	279	ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);
ec454d70 CK	280
	281	of_node_put(config.of_node);
	282
1910efa1 MB	283	if (IS_ERR(ldo1->regulator)) {
1910efa1 MB	284	ret = PTR_ERR(ldo1->regulator);
af367afa	285	dev_err(&pdev->dev, "Failed to register LDO1 supply: %d\n",
1910efa1 MB	286	ret);
	287	return ret;
	288	}
	289
	290	platform_set_drvdata(pdev, ldo1);
	291
	292	return 0;
	293	}
	294
af367afa RF	295	static int arizona_ldo1_probe(struct platform_device *pdev)
	296	{
	297	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
	298	struct arizona_ldo1 *ldo1;
	299	const struct regulator_desc *desc;
	300	bool external_dcvdd;
	301	int ret;
	302
	303	ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
	304	if (!ldo1)
	305	return -ENOMEM;
	306
	307	ldo1->regmap = arizona->regmap;
	308
	309	/*
	310	* Since the chip usually supplies itself we provide some
	311	* default init_data for it. This will be overridden with
	312	* platform data if provided.
	313	*/
	314	switch (arizona->type) {
	315	case WM5102:
	316	case WM8997:
	317	case WM8998:
	318	case WM1814:
	319	desc = &arizona_ldo1_hc;
	320	ldo1->init_data = arizona_ldo1_dvfs;
	321	break;
	322	case WM5110:
	323	case WM8280:
	324	desc = &arizona_ldo1;
	325	ldo1->init_data = arizona_ldo1_wm5110;
	326	break;
	327	default:
	328	desc = &arizona_ldo1;
	329	ldo1->init_data = arizona_ldo1_default;
	330	break;
	331	}
	332
	333	ret = arizona_ldo1_common_init(pdev, ldo1, desc,
	334	&arizona->pdata.ldo1,
	335	&external_dcvdd);
	336	if (ret == 0)
	337	arizona->external_dcvdd = external_dcvdd;
	338
	339	return ret;
	340	}
	341
a9191579 CK	342	static int arizona_ldo1_remove(struct platform_device *pdev)
	343	{
	344	struct arizona_ldo1 *ldo1 = platform_get_drvdata(pdev);
	345
	346	if (ldo1->ena_gpiod)
	347	gpiod_put(ldo1->ena_gpiod);
	348
	349	return 0;
	350	}
	351
1f5f11e7 RF	352	static int madera_ldo1_probe(struct platform_device *pdev)
	353	{
	354	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
	355	struct arizona_ldo1 *ldo1;
	356	bool external_dcvdd;
	357	int ret;
	358
	359	ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
	360	if (!ldo1)
	361	return -ENOMEM;
	362
	363	ldo1->regmap = madera->regmap;
	364
	365	ldo1->init_data = madera_ldo1_default;
	366
	367	ret = arizona_ldo1_common_init(pdev, ldo1, &madera_ldo1,
	368	&madera->pdata.ldo1,
	369	&external_dcvdd);
	370	if (ret)
	371	return ret;
	372
	373	madera->internal_dcvdd = !external_dcvdd;
	374
	375	return 0;
	376	}
	377
1910efa1 MB	378	static struct platform_driver arizona_ldo1_driver = {
1910efa1 MB	379	.probe = arizona_ldo1_probe,
a9191579	380	.remove = arizona_ldo1_remove,
1910efa1 MB	381	.driver = {
1910efa1 MB	382	.name = "arizona-ldo1",
1910efa1 MB	383	},
	384	};
	385
1f5f11e7 RF	386	static struct platform_driver madera_ldo1_driver = {
	387	.probe = madera_ldo1_probe,
	388	.remove = arizona_ldo1_remove,
	389	.driver = {
	390	.name = "madera-ldo1",
	391	},
	392	};
	393
	394	static struct platform_driver * const madera_ldo1_drivers[] = {
	395	&arizona_ldo1_driver,
	396	&madera_ldo1_driver,
	397	};
	398
	399	static int __init arizona_ldo1_init(void)
	400	{
	401	return platform_register_drivers(madera_ldo1_drivers,
	402	ARRAY_SIZE(madera_ldo1_drivers));
	403	}
	404	module_init(arizona_ldo1_init);
	405
	406	static void __exit madera_ldo1_exit(void)
	407	{
	408	platform_unregister_drivers(madera_ldo1_drivers,
	409	ARRAY_SIZE(madera_ldo1_drivers));
	410	}
	411	module_exit(madera_ldo1_exit);
1910efa1 MB	412
	413	/* Module information */
	414	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	415	MODULE_DESCRIPTION("Arizona LDO1 driver");
	416	MODULE_LICENSE("GPL");
	417	MODULE_ALIAS("platform:arizona-ldo1");
1f5f11e7	418	MODULE_ALIAS("platform:madera-ldo1");