[linux-block.git] / drivers / regulator / max8925-regulator.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Regulators driver for Maxim max8925
 *
 * Copyright (C) 2009 Marvell International Ltd.
 *      Haojian Zhuang <haojian.zhuang@marvell.com>
 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/max8925.h>
#include <linux/of.h>
#include <linux/regulator/of_regulator.h>

#define SD1_DVM_VMIN		850000
#define SD1_DVM_VMAX		1000000
#define SD1_DVM_STEP		50000
#define SD1_DVM_SHIFT		5		/* SDCTL1 bit5 */
#define SD1_DVM_EN		6		/* SDV1 bit 6 */

/* bit definitions in LDO control registers */
#define LDO_SEQ_I2C		0x7		/* Power U/D by i2c */
#define LDO_SEQ_MASK		0x7		/* Power U/D sequence mask */
#define LDO_SEQ_SHIFT		2		/* Power U/D sequence offset */
#define LDO_I2C_EN		0x1		/* Enable by i2c */
#define LDO_I2C_EN_MASK		0x1		/* Enable mask by i2c */
#define LDO_I2C_EN_SHIFT	0		/* Enable offset by i2c */

struct max8925_regulator_info {
	struct regulator_desc	desc;
	struct i2c_client	*i2c;

	int	vol_reg;
	int	enable_reg;
};

static int max8925_set_voltage_sel(struct regulator_dev *rdev,
				   unsigned int selector)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	unsigned char mask = rdev->desc->n_voltages - 1;

	return max8925_set_bits(info->i2c, info->vol_reg, mask, selector);
}

static int max8925_get_voltage_sel(struct regulator_dev *rdev)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	unsigned char data, mask;
	int ret;

	ret = max8925_reg_read(info->i2c, info->vol_reg);
	if (ret < 0)
		return ret;
	mask = rdev->desc->n_voltages - 1;
	data = ret & mask;

	return data;
}

static int max8925_enable(struct regulator_dev *rdev)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);

	return max8925_set_bits(info->i2c, info->enable_reg,
				LDO_SEQ_MASK << LDO_SEQ_SHIFT |
				LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
				LDO_SEQ_I2C << LDO_SEQ_SHIFT |
				LDO_I2C_EN << LDO_I2C_EN_SHIFT);
}

static int max8925_disable(struct regulator_dev *rdev)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);

	return max8925_set_bits(info->i2c, info->enable_reg,
				LDO_SEQ_MASK << LDO_SEQ_SHIFT |
				LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
				LDO_SEQ_I2C << LDO_SEQ_SHIFT);
}

static int max8925_is_enabled(struct regulator_dev *rdev)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	int ldo_seq, ret;

	ret = max8925_reg_read(info->i2c, info->enable_reg);
	if (ret < 0)
		return ret;
	ldo_seq = (ret >> LDO_SEQ_SHIFT) & LDO_SEQ_MASK;
	if (ldo_seq != LDO_SEQ_I2C)
		return 1;
	else
		return ret & (LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT);
}

static int max8925_set_dvm_voltage(struct regulator_dev *rdev, int uV)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	unsigned char data, mask;

	if (uV < SD1_DVM_VMIN || uV > SD1_DVM_VMAX)
		return -EINVAL;

	data = DIV_ROUND_UP(uV - SD1_DVM_VMIN, SD1_DVM_STEP);
	data <<= SD1_DVM_SHIFT;
	mask = 3 << SD1_DVM_SHIFT;

	return max8925_set_bits(info->i2c, info->enable_reg, mask, data);
}

static int max8925_set_dvm_enable(struct regulator_dev *rdev)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);

	return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN,
				1 << SD1_DVM_EN);
}

static int max8925_set_dvm_disable(struct regulator_dev *rdev)
{
	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);

	return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN, 0);
}

static const struct regulator_ops max8925_regulator_sdv_ops = {
	.map_voltage		= regulator_map_voltage_linear,
	.list_voltage		= regulator_list_voltage_linear,
	.set_voltage_sel	= max8925_set_voltage_sel,
	.get_voltage_sel	= max8925_get_voltage_sel,
	.enable			= max8925_enable,
	.disable		= max8925_disable,
	.is_enabled		= max8925_is_enabled,
	.set_suspend_voltage	= max8925_set_dvm_voltage,
	.set_suspend_enable	= max8925_set_dvm_enable,
	.set_suspend_disable	= max8925_set_dvm_disable,
};

static const struct regulator_ops max8925_regulator_ldo_ops = {
	.map_voltage		= regulator_map_voltage_linear,
	.list_voltage		= regulator_list_voltage_linear,
	.set_voltage_sel	= max8925_set_voltage_sel,
	.get_voltage_sel	= max8925_get_voltage_sel,
	.enable			= max8925_enable,
	.disable		= max8925_disable,
	.is_enabled		= max8925_is_enabled,
};

#define MAX8925_SDV(_id, min, max, step)			\
{								\
	.desc	= {						\
		.name	= "SDV" #_id,				\
		.of_match = of_match_ptr("SDV" #_id),		\
		.regulators_node = of_match_ptr("regulators"),	\
		.ops	= &max8925_regulator_sdv_ops,		\
		.type	= REGULATOR_VOLTAGE,			\
		.id	= MAX8925_ID_SD##_id,			\
		.owner	= THIS_MODULE,				\
		.n_voltages = 64,				\
		.min_uV = min * 1000,				\
		.uV_step = step * 1000,				\
	},							\
	.vol_reg	= MAX8925_SDV##_id,			\
	.enable_reg	= MAX8925_SDCTL##_id,			\
}

#define MAX8925_LDO(_id, min, max, step)			\
{								\
	.desc	= {						\
		.name	= "LDO" #_id,				\
		.of_match = of_match_ptr("LDO" #_id),		\
		.regulators_node = of_match_ptr("regulators"),	\
		.ops	= &max8925_regulator_ldo_ops,		\
		.type	= REGULATOR_VOLTAGE,			\
		.id	= MAX8925_ID_LDO##_id,			\
		.owner	= THIS_MODULE,				\
		.n_voltages = 64,				\
		.min_uV = min * 1000,				\
		.uV_step = step * 1000,				\
	},							\
	.vol_reg	= MAX8925_LDOVOUT##_id,			\
	.enable_reg	= MAX8925_LDOCTL##_id,			\
}

static struct max8925_regulator_info max8925_regulator_info[] = {
	MAX8925_SDV(1, 637.5, 1425, 12.5),
	MAX8925_SDV(2,   650, 2225,   25),
	MAX8925_SDV(3,   750, 3900,   50),

	MAX8925_LDO(1,  750, 3900, 50),
	MAX8925_LDO(2,  650, 2250, 25),
	MAX8925_LDO(3,  650, 2250, 25),
	MAX8925_LDO(4,  750, 3900, 50),
	MAX8925_LDO(5,  750, 3900, 50),
	MAX8925_LDO(6,  750, 3900, 50),
	MAX8925_LDO(7,  750, 3900, 50),
	MAX8925_LDO(8,  750, 3900, 50),
	MAX8925_LDO(9,  750, 3900, 50),
	MAX8925_LDO(10, 750, 3900, 50),
	MAX8925_LDO(11, 750, 3900, 50),
	MAX8925_LDO(12, 750, 3900, 50),
	MAX8925_LDO(13, 750, 3900, 50),
	MAX8925_LDO(14, 750, 3900, 50),
	MAX8925_LDO(15, 750, 3900, 50),
	MAX8925_LDO(16, 750, 3900, 50),
	MAX8925_LDO(17, 650, 2250, 25),
	MAX8925_LDO(18, 650, 2250, 25),
	MAX8925_LDO(19, 750, 3900, 50),
	MAX8925_LDO(20, 750, 3900, 50),
};

static int max8925_regulator_probe(struct platform_device *pdev)
{
	struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
	struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);
	struct regulator_config config = { };
	struct max8925_regulator_info *ri;
	struct resource *res;
	struct regulator_dev *rdev;
	int i;

	res = platform_get_resource(pdev, IORESOURCE_REG, 0);
	if (!res) {
		dev_err(&pdev->dev, "No REG resource!\n");
		return -EINVAL;
	}
	for (i = 0; i < ARRAY_SIZE(max8925_regulator_info); i++) {
		ri = &max8925_regulator_info[i];
		if (ri->vol_reg == res->start)
			break;
	}

	if (i == ARRAY_SIZE(max8925_regulator_info)) {
		dev_err(&pdev->dev, "Failed to find regulator %llu\n",
			(unsigned long long)res->start);
		return -EINVAL;
	}
	ri->i2c = chip->i2c;

	config.dev = chip->dev;
	config.driver_data = ri;

	if (pdata)
		config.init_data = pdata;

	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, rdev);
	return 0;
}

static struct platform_driver max8925_regulator_driver = {
	.driver		= {
		.name	= "max8925-regulator",
		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
	},
	.probe		= max8925_regulator_probe,
};

static int __init max8925_regulator_init(void)
{
	return platform_driver_register(&max8925_regulator_driver);
}
subsys_initcall(max8925_regulator_init);

static void __exit max8925_regulator_exit(void)
{
	platform_driver_unregister(&max8925_regulator_driver);
}
module_exit(max8925_regulator_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_DESCRIPTION("Regulator Driver for Maxim 8925 PMIC");
MODULE_ALIAS("platform:max8925-regulator");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
08ff6f2a HZ	2	/*
	3	* Regulators driver for Maxim max8925
	4	*
	5	* Copyright (C) 2009 Marvell International Ltd.
	6	* Haojian Zhuang <haojian.zhuang@marvell.com>
08ff6f2a HZ	7	*/
08ff6f2a HZ	8	#include <linux/kernel.h>
65602c32	9	#include <linux/module.h>
08ff6f2a HZ	10	#include <linux/init.h>
	11	#include <linux/err.h>
	12	#include <linux/i2c.h>
	13	#include <linux/platform_device.h>
	14	#include <linux/regulator/driver.h>
	15	#include <linux/regulator/machine.h>
	16	#include <linux/mfd/max8925.h>
45b6f8e8 QX	17	#include <linux/of.h>
45b6f8e8 QX	18	#include <linux/regulator/of_regulator.h>
08ff6f2a HZ	19
	20	#define SD1_DVM_VMIN 850000
	21	#define SD1_DVM_VMAX 1000000
	22	#define SD1_DVM_STEP 50000
	23	#define SD1_DVM_SHIFT 5 /* SDCTL1 bit5 */
	24	#define SD1_DVM_EN 6 /* SDV1 bit 6 */
	25
65364e9a KL	26	/* bit definitions in LDO control registers */
	27	#define LDO_SEQ_I2C 0x7 /* Power U/D by i2c */
	28	#define LDO_SEQ_MASK 0x7 /* Power U/D sequence mask */
	29	#define LDO_SEQ_SHIFT 2 /* Power U/D sequence offset */
	30	#define LDO_I2C_EN 0x1 /* Enable by i2c */
	31	#define LDO_I2C_EN_MASK 0x1 /* Enable mask by i2c */
	32	#define LDO_I2C_EN_SHIFT 0 /* Enable offset by i2c */
db13c040	33
08ff6f2a HZ	34	struct max8925_regulator_info {
08ff6f2a HZ	35	struct regulator_desc desc;
08ff6f2a	36	struct i2c_client *i2c;
08ff6f2a	37
08ff6f2a	38	int vol_reg;
08ff6f2a HZ	39	int enable_reg;
	40	};
	41
cd8318cb AL	42	static int max8925_set_voltage_sel(struct regulator_dev *rdev,
cd8318cb AL	43	unsigned int selector)
08ff6f2a HZ	44	{
08ff6f2a HZ	45	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
cd8318cb	46	unsigned char mask = rdev->desc->n_voltages - 1;
08ff6f2a	47
cd8318cb	48	return max8925_set_bits(info->i2c, info->vol_reg, mask, selector);
08ff6f2a HZ	49	}
08ff6f2a HZ	50
3c8983b9	51	static int max8925_get_voltage_sel(struct regulator_dev *rdev)
08ff6f2a HZ	52	{
	53	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	54	unsigned char data, mask;
	55	int ret;
	56
	57	ret = max8925_reg_read(info->i2c, info->vol_reg);
	58	if (ret < 0)
	59	return ret;
7f52ba77 AL	60	mask = rdev->desc->n_voltages - 1;
7f52ba77 AL	61	data = ret & mask;
08ff6f2a	62
3c8983b9	63	return data;
08ff6f2a HZ	64	}
	65
	66	static int max8925_enable(struct regulator_dev *rdev)
	67	{
	68	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	69
	70	return max8925_set_bits(info->i2c, info->enable_reg,
65364e9a KL	71	LDO_SEQ_MASK << LDO_SEQ_SHIFT \|
	72	LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
	73	LDO_SEQ_I2C << LDO_SEQ_SHIFT \|
	74	LDO_I2C_EN << LDO_I2C_EN_SHIFT);
08ff6f2a HZ	75	}
	76
	77	static int max8925_disable(struct regulator_dev *rdev)
	78	{
	79	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	80
	81	return max8925_set_bits(info->i2c, info->enable_reg,
65364e9a KL	82	LDO_SEQ_MASK << LDO_SEQ_SHIFT \|
	83	LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
	84	LDO_SEQ_I2C << LDO_SEQ_SHIFT);
08ff6f2a HZ	85	}
	86
	87	static int max8925_is_enabled(struct regulator_dev *rdev)
	88	{
	89	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
65364e9a	90	int ldo_seq, ret;
08ff6f2a	91
4b99fef0	92	ret = max8925_reg_read(info->i2c, info->enable_reg);
08ff6f2a HZ	93	if (ret < 0)
08ff6f2a HZ	94	return ret;
65364e9a KL	95	ldo_seq = (ret >> LDO_SEQ_SHIFT) & LDO_SEQ_MASK;
	96	if (ldo_seq != LDO_SEQ_I2C)
	97	return 1;
	98	else
	99	return ret & (LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT);
08ff6f2a HZ	100	}
	101
	102	static int max8925_set_dvm_voltage(struct regulator_dev *rdev, int uV)
	103	{
	104	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	105	unsigned char data, mask;
	106
	107	if (uV < SD1_DVM_VMIN \|\| uV > SD1_DVM_VMAX)
	108	return -EINVAL;
	109
5db6d09a	110	data = DIV_ROUND_UP(uV - SD1_DVM_VMIN, SD1_DVM_STEP);
08ff6f2a HZ	111	data <<= SD1_DVM_SHIFT;
	112	mask = 3 << SD1_DVM_SHIFT;
	113
	114	return max8925_set_bits(info->i2c, info->enable_reg, mask, data);
	115	}
	116
	117	static int max8925_set_dvm_enable(struct regulator_dev *rdev)
	118	{
	119	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	120
	121	return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN,
	122	1 << SD1_DVM_EN);
	123	}
	124
	125	static int max8925_set_dvm_disable(struct regulator_dev *rdev)
	126	{
	127	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
	128
	129	return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN, 0);
	130	}
	131
85214c9a	132	static const struct regulator_ops max8925_regulator_sdv_ops = {
cd8318cb	133	.map_voltage = regulator_map_voltage_linear,
4093e739	134	.list_voltage = regulator_list_voltage_linear,
cd8318cb	135	.set_voltage_sel = max8925_set_voltage_sel,
3c8983b9	136	.get_voltage_sel = max8925_get_voltage_sel,
08ff6f2a HZ	137	.enable = max8925_enable,
	138	.disable = max8925_disable,
	139	.is_enabled = max8925_is_enabled,
	140	.set_suspend_voltage = max8925_set_dvm_voltage,
	141	.set_suspend_enable = max8925_set_dvm_enable,
	142	.set_suspend_disable = max8925_set_dvm_disable,
	143	};
	144
85214c9a	145	static const struct regulator_ops max8925_regulator_ldo_ops = {
cd8318cb	146	.map_voltage = regulator_map_voltage_linear,
4093e739	147	.list_voltage = regulator_list_voltage_linear,
cd8318cb	148	.set_voltage_sel = max8925_set_voltage_sel,
3c8983b9	149	.get_voltage_sel = max8925_get_voltage_sel,
08ff6f2a HZ	150	.enable = max8925_enable,
	151	.disable = max8925_disable,
	152	.is_enabled = max8925_is_enabled,
	153	};
	154
	155	#define MAX8925_SDV(_id, min, max, step) \
	156	{ \
	157	.desc = { \
	158	.name = "SDV" #_id, \
6185de50 AL	159	.of_match = of_match_ptr("SDV" #_id), \
6185de50 AL	160	.regulators_node = of_match_ptr("regulators"), \
08ff6f2a HZ	161	.ops = &max8925_regulator_sdv_ops, \
	162	.type = REGULATOR_VOLTAGE, \
	163	.id = MAX8925_ID_SD##_id, \
	164	.owner = THIS_MODULE, \
7f52ba77	165	.n_voltages = 64, \
4093e739 AL	166	.min_uV = min * 1000, \
4093e739 AL	167	.uV_step = step * 1000, \
08ff6f2a	168	}, \
08ff6f2a	169	.vol_reg = MAX8925_SDV##_id, \
08ff6f2a	170	.enable_reg = MAX8925_SDCTL##_id, \
08ff6f2a HZ	171	}
	172
	173	#define MAX8925_LDO(_id, min, max, step) \
	174	{ \
	175	.desc = { \
	176	.name = "LDO" #_id, \
6185de50 AL	177	.of_match = of_match_ptr("LDO" #_id), \
6185de50 AL	178	.regulators_node = of_match_ptr("regulators"), \
08ff6f2a HZ	179	.ops = &max8925_regulator_ldo_ops, \
	180	.type = REGULATOR_VOLTAGE, \
	181	.id = MAX8925_ID_LDO##_id, \
	182	.owner = THIS_MODULE, \
7f52ba77	183	.n_voltages = 64, \
4093e739 AL	184	.min_uV = min * 1000, \
4093e739 AL	185	.uV_step = step * 1000, \
08ff6f2a	186	}, \
08ff6f2a	187	.vol_reg = MAX8925_LDOVOUT##_id, \
08ff6f2a	188	.enable_reg = MAX8925_LDOCTL##_id, \
08ff6f2a HZ	189	}
	190
	191	static struct max8925_regulator_info max8925_regulator_info[] = {
	192	MAX8925_SDV(1, 637.5, 1425, 12.5),
	193	MAX8925_SDV(2, 650, 2225, 25),
	194	MAX8925_SDV(3, 750, 3900, 50),
	195
	196	MAX8925_LDO(1, 750, 3900, 50),
	197	MAX8925_LDO(2, 650, 2250, 25),
	198	MAX8925_LDO(3, 650, 2250, 25),
	199	MAX8925_LDO(4, 750, 3900, 50),
	200	MAX8925_LDO(5, 750, 3900, 50),
	201	MAX8925_LDO(6, 750, 3900, 50),
	202	MAX8925_LDO(7, 750, 3900, 50),
	203	MAX8925_LDO(8, 750, 3900, 50),
	204	MAX8925_LDO(9, 750, 3900, 50),
	205	MAX8925_LDO(10, 750, 3900, 50),
	206	MAX8925_LDO(11, 750, 3900, 50),
	207	MAX8925_LDO(12, 750, 3900, 50),
	208	MAX8925_LDO(13, 750, 3900, 50),
	209	MAX8925_LDO(14, 750, 3900, 50),
	210	MAX8925_LDO(15, 750, 3900, 50),
	211	MAX8925_LDO(16, 750, 3900, 50),
	212	MAX8925_LDO(17, 650, 2250, 25),
	213	MAX8925_LDO(18, 650, 2250, 25),
	214	MAX8925_LDO(19, 750, 3900, 50),
	215	MAX8925_LDO(20, 750, 3900, 50),
	216	};
	217
a5023574	218	static int max8925_regulator_probe(struct platform_device *pdev)
08ff6f2a HZ	219	{
08ff6f2a HZ	220	struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
dff91d0b	221	struct regulator_init_data *pdata = dev_get_platdata(&pdev->dev);
c172708d	222	struct regulator_config config = { };
3fff6c04	223	struct max8925_regulator_info *ri;
51acdb61	224	struct resource *res;
08ff6f2a	225	struct regulator_dev *rdev;
6185de50	226	int i;
08ff6f2a	227
51acdb61 HZ	228	res = platform_get_resource(pdev, IORESOURCE_REG, 0);
	229	if (!res) {
	230	dev_err(&pdev->dev, "No REG resource!\n");
	231	return -EINVAL;
	232	}
	233	for (i = 0; i < ARRAY_SIZE(max8925_regulator_info); i++) {
	234	ri = &max8925_regulator_info[i];
6185de50	235	if (ri->vol_reg == res->start)
51acdb61 HZ	236	break;
51acdb61 HZ	237	}
45b6f8e8	238
51acdb61 HZ	239	if (i == ARRAY_SIZE(max8925_regulator_info)) {
	240	dev_err(&pdev->dev, "Failed to find regulator %llu\n",
	241	(unsigned long long)res->start);
08ff6f2a HZ	242	return -EINVAL;
	243	}
	244	ri->i2c = chip->i2c;
08ff6f2a	245
6185de50	246	config.dev = chip->dev;
c172708d MB	247	config.driver_data = ri;
c172708d MB	248
6185de50 AL	249	if (pdata)
6185de50 AL	250	config.init_data = pdata;
45b6f8e8	251
58765e24	252	rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
08ff6f2a HZ	253	if (IS_ERR(rdev)) {
	254	dev_err(&pdev->dev, "failed to register regulator %s\n",
	255	ri->desc.name);
	256	return PTR_ERR(rdev);
	257	}
	258
	259	platform_set_drvdata(pdev, rdev);
	260	return 0;
	261	}
	262
08ff6f2a HZ	263	static struct platform_driver max8925_regulator_driver = {
	264	.driver = {
	265	.name = "max8925-regulator",
259b93b2	266	.probe_type = PROBE_PREFER_ASYNCHRONOUS,
08ff6f2a HZ	267	},
08ff6f2a HZ	268	.probe = max8925_regulator_probe,
08ff6f2a HZ	269	};
	270
	271	static int __init max8925_regulator_init(void)
	272	{
	273	return platform_driver_register(&max8925_regulator_driver);
	274	}
	275	subsys_initcall(max8925_regulator_init);
	276
	277	static void __exit max8925_regulator_exit(void)
	278	{
	279	platform_driver_unregister(&max8925_regulator_driver);
	280	}
	281	module_exit(max8925_regulator_exit);
	282
	283	MODULE_LICENSE("GPL");
	284	MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
	285	MODULE_DESCRIPTION("Regulator Driver for Maxim 8925 PMIC");
	286	MODULE_ALIAS("platform:max8925-regulator");