[net-next-2.6.git] / drivers / regulator / da903x.c

/*
 * Regulators driver for Dialog Semiconductor DA903x
 *
 * Copyright (C) 2006-2008 Marvell International Ltd.
 * Copyright (C) 2008 Compulab Ltd.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/da903x.h>

/* DA9030 Registers */
#define DA9030_INVAL		(-1)
#define DA9030_LDO1011		(0x10)
#define DA9030_LDO15		(0x11)
#define DA9030_LDO1416		(0x12)
#define DA9030_LDO1819		(0x13)
#define DA9030_LDO17		(0x14)
#define DA9030_BUCK2DVM1	(0x15)
#define DA9030_BUCK2DVM2	(0x16)
#define DA9030_RCTL11		(0x17)
#define DA9030_RCTL21		(0x18)
#define DA9030_LDO1		(0x90)
#define DA9030_LDO23		(0x91)
#define DA9030_LDO45		(0x92)
#define DA9030_LDO6		(0x93)
#define DA9030_LDO78		(0x94)
#define DA9030_LDO912		(0x95)
#define DA9030_BUCK		(0x96)
#define DA9030_RCTL12		(0x97)
#define DA9030_RCTL22		(0x98)
#define DA9030_LDO_UNLOCK	(0xa0)
#define DA9030_LDO_UNLOCK_MASK	(0xe0)
#define DA9034_OVER1		(0x10)

/* DA9034 Registers */
#define DA9034_INVAL		(-1)
#define DA9034_OVER2		(0x11)
#define DA9034_OVER3		(0x12)
#define DA9034_LDO643		(0x13)
#define DA9034_LDO987		(0x14)
#define DA9034_LDO1110		(0x15)
#define DA9034_LDO1312		(0x16)
#define DA9034_LDO1514		(0x17)
#define DA9034_VCC1		(0x20)
#define DA9034_ADTV1		(0x23)
#define DA9034_ADTV2		(0x24)
#define DA9034_AVRC		(0x25)
#define DA9034_CDTV1		(0x26)
#define DA9034_CDTV2		(0x27)
#define DA9034_CVRC		(0x28)
#define DA9034_SDTV1		(0x29)
#define DA9034_SDTV2		(0x2a)
#define DA9034_SVRC		(0x2b)
#define DA9034_MDTV1		(0x32)
#define DA9034_MDTV2		(0x33)
#define DA9034_MVRC		(0x34)

/* DA9035 Registers. DA9034 Registers are comptabile to DA9035. */
#define DA9035_OVER3		(0x12)
#define DA9035_VCC2		(0x1f)
#define DA9035_3DTV1		(0x2c)
#define DA9035_3DTV2		(0x2d)
#define DA9035_3VRC		(0x2e)
#define DA9035_AUTOSKIP		(0x2f)

struct da903x_regulator_info {
	struct regulator_desc desc;

	int	min_uV;
	int	max_uV;
	int	step_uV;
	int	vol_reg;
	int	vol_shift;
	int	vol_nbits;
	int	update_reg;
	int	update_bit;
	int	enable_reg;
	int	enable_bit;
};

static int da9034_ldo12_data[] = { 1700, 1750, 1800, 1850, 1900, 1950,
				   2000, 2050, 2700, 2750, 2800, 2850,
				   2900, 2950, 3000, 3050 };

static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
{
	return rdev_get_dev(rdev)->parent->parent;
}

static inline int check_range(struct da903x_regulator_info *info,
				int min_uV, int max_uV)
{
	if (min_uV < info->min_uV || min_uV > info->max_uV)
		return -EINVAL;

	return 0;
}

/* DA9030/DA9034 common operations */
static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
				  int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;

	if (check_range(info, min_uV, max_uV)) {
		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
		return -EINVAL;
	}

	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	val <<= info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	return da903x_update(da9034_dev, info->vol_reg, val, mask);
}

static int da903x_get_voltage(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	if (ret)
		return ret;

	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
	val = (val & mask) >> info->vol_shift;

	return info->min_uV + info->step_uV * val;
}

static int da903x_enable(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);

	return da903x_set_bits(da9034_dev, info->enable_reg,
					1 << info->enable_bit);
}

static int da903x_disable(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);

	return da903x_clr_bits(da9034_dev, info->enable_reg,
					1 << info->enable_bit);
}

static int da903x_is_enabled(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t reg_val;
	int ret;

	ret = da903x_read(da9034_dev, info->enable_reg, &reg_val);
	if (ret)
		return ret;

	return !!(reg_val & (1 << info->enable_bit));
}

static int da903x_list_voltage(struct regulator_dev *rdev, unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int ret;

	ret = info->min_uV + info->step_uV * selector;
	if (ret > info->max_uV)
		return -EINVAL;
	return ret;
}

/* DA9030 specific operations */
static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
				       int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da903x_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	if (check_range(info, min_uV, max_uV)) {
		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
		return -EINVAL;
	}

	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	val <<= info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
	val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
	mask |= DA9030_LDO_UNLOCK_MASK;

	/* write twice */
	ret = da903x_update(da903x_dev, info->vol_reg, val, mask);
	if (ret)
		return ret;

	return da903x_update(da903x_dev, info->vol_reg, val, mask);
}

static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
				  int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da903x_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int thresh;

	if (check_range(info, min_uV, max_uV)) {
		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
		return -EINVAL;
	}

	thresh = (info->max_uV + info->min_uV) / 2;
	if (min_uV < thresh) {
		val = (thresh - min_uV + info->step_uV - 1) / info->step_uV;
		val |= 0x4;
	} else {
		val = (min_uV - thresh + info->step_uV - 1) / info->step_uV;
	}

	val <<= info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	return da903x_update(da903x_dev, info->vol_reg, val, mask);
}

static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da903x_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	ret = da903x_read(da903x_dev, info->vol_reg, &val);
	if (ret)
		return ret;

	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
	val = (val & mask) >> info->vol_shift;

	if (val & 0x4)
		return info->min_uV + info->step_uV * (3 - (val & ~0x4));
	else
		return (info->max_uV + info->min_uV) / 2 +
			info->step_uV * (val & ~0x4);
}

/* DA9034 specific operations */
static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
				  int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	if (check_range(info, min_uV, max_uV)) {
		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
		return -EINVAL;
	}

	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	val <<= info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
	if (ret)
		return ret;

	ret = da903x_set_bits(da9034_dev, info->update_reg,
					1 << info->update_bit);
	return ret;
}

static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
				    int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;

	if (check_range(info, min_uV, max_uV)) {
		pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
		return -EINVAL;
	}

	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
	val <<= info->vol_shift;
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	return da903x_update(da9034_dev, info->vol_reg, val, mask);
}

static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;
	int ret;

	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	if (ret)
		return ret;

	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;
	val = (val & mask) >> info->vol_shift;

	if (val >= 8)
		return 2700000 + info->step_uV * (val - 8);

	return info->min_uV + info->step_uV * val;
}

static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
				     unsigned selector)
{
	if (selector >= ARRAY_SIZE(da9034_ldo12_data))
		return -EINVAL;
	return da9034_ldo12_data[selector] * 1000;
}

static struct regulator_ops da903x_regulator_ldo_ops = {
	.set_voltage	= da903x_set_ldo_voltage,
	.get_voltage	= da903x_get_voltage,
	.list_voltage	= da903x_list_voltage,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

/* NOTE: this is dedicated for the insane DA9030 LDO14 */
static struct regulator_ops da9030_regulator_ldo14_ops = {
	.set_voltage	= da9030_set_ldo14_voltage,
	.get_voltage	= da9030_get_ldo14_voltage,
	.list_voltage	= da903x_list_voltage,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks  */
static struct regulator_ops da9030_regulator_ldo1_15_ops = {
	.set_voltage	= da9030_set_ldo1_15_voltage,
	.get_voltage	= da903x_get_voltage,
	.list_voltage	= da903x_list_voltage,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

static struct regulator_ops da9034_regulator_dvc_ops = {
	.set_voltage	= da9034_set_dvc_voltage,
	.get_voltage	= da903x_get_voltage,
	.list_voltage	= da903x_list_voltage,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

/* NOTE: this is dedicated for the insane LDO12 */
static struct regulator_ops da9034_regulator_ldo12_ops = {
	.set_voltage	= da9034_set_ldo12_voltage,
	.get_voltage	= da9034_get_ldo12_voltage,
	.list_voltage	= da9034_list_ldo12_voltage,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

#define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit)	\
{									\
	.desc	= {							\
		.name	= "LDO" #_id,					\
		.ops	= &da903x_regulator_ldo_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= _pmic##_ID_LDO##_id,				\
		.n_voltages = (step) ? ((max - min) / step + 1) : 1,	\
		.owner	= THIS_MODULE,					\
	},								\
	.min_uV		= (min) * 1000,					\
	.max_uV		= (max) * 1000,					\
	.step_uV	= (step) * 1000,				\
	.vol_reg	= _pmic##_##vreg,				\
	.vol_shift	= (shift),					\
	.vol_nbits	= (nbits),					\
	.enable_reg	= _pmic##_##ereg,				\
	.enable_bit	= (ebit),					\
}

#define DA903x_DVC(_pmic, _id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
{									\
	.desc	= {							\
		.name	= #_id,						\
		.ops	= &da9034_regulator_dvc_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= _pmic##_ID_##_id,				\
		.n_voltages = (step) ? ((max - min) / step + 1) : 1,	\
		.owner	= THIS_MODULE,					\
	},								\
	.min_uV		= (min) * 1000,					\
	.max_uV		= (max) * 1000,					\
	.step_uV	= (step) * 1000,				\
	.vol_reg	= _pmic##_##vreg,				\
	.vol_shift	= (0),						\
	.vol_nbits	= (nbits),					\
	.update_reg	= _pmic##_##ureg,				\
	.update_bit	= (ubit),					\
	.enable_reg	= _pmic##_##ereg,				\
	.enable_bit	= (ebit),					\
}

#define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit)	\
	DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)

#define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit)	\
	DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit)

#define DA9030_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	DA903x_DVC(DA9030, _id, min, max, step, vreg, nbits, ureg, ubit, \
		   ereg, ebit)

#define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	DA903x_DVC(DA9034, _id, min, max, step, vreg, nbits, ureg, ubit, \
		   ereg, ebit)

#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	DA903x_DVC(DA9035, _id, min, max, step, vreg, nbits, ureg, ubit, \
		   ereg, ebit)

static struct da903x_regulator_info da903x_regulator_info[] = {
	/* DA9030 */
	DA9030_DVC(BUCK2, 850, 1625, 25, BUCK2DVM1, 5, BUCK2DVM1, 7, RCTL11, 0),

	DA9030_LDO( 1, 1200, 3200, 100,    LDO1, 0, 5, RCTL12, 1),
	DA9030_LDO( 2, 1800, 3200, 100,   LDO23, 0, 4, RCTL12, 2),
	DA9030_LDO( 3, 1800, 3200, 100,   LDO23, 4, 4, RCTL12, 3),
	DA9030_LDO( 4, 1800, 3200, 100,   LDO45, 0, 4, RCTL12, 4),
	DA9030_LDO( 5, 1800, 3200, 100,   LDO45, 4, 4, RCTL12, 5),
	DA9030_LDO( 6, 1800, 3200, 100,    LDO6, 0, 4, RCTL12, 6),
	DA9030_LDO( 7, 1800, 3200, 100,   LDO78, 0, 4, RCTL12, 7),
	DA9030_LDO( 8, 1800, 3200, 100,   LDO78, 4, 4, RCTL22, 0),
	DA9030_LDO( 9, 1800, 3200, 100,  LDO912, 0, 4, RCTL22, 1),
	DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2),
	DA9030_LDO(11, 1800, 3200, 100, LDO1011, 4, 4, RCTL22, 3),
	DA9030_LDO(12, 1800, 3200, 100,  LDO912, 4, 4, RCTL22, 4),
	DA9030_LDO(14, 2760, 2940,  30, LDO1416, 0, 3, RCTL11, 4),
	DA9030_LDO(15, 1100, 2650,  50,	  LDO15, 0, 5, RCTL11, 5),
	DA9030_LDO(16, 1100, 2650,  50, LDO1416, 3, 5, RCTL11, 6),
	DA9030_LDO(17, 1800, 3200, 100,   LDO17, 0, 4, RCTL11, 7),
	DA9030_LDO(18, 1800, 3200, 100, LDO1819, 0, 4, RCTL21, 2),
	DA9030_LDO(19, 1800, 3200, 100, LDO1819, 4, 4, RCTL21, 1),
	DA9030_LDO(13, 2100, 2100, 0, INVAL, 0, 0, RCTL11, 3), /* fixed @2.1V */

	/* DA9034 */
	DA9034_DVC(BUCK1, 725, 1500, 25, ADTV2, 5, VCC1, 0, OVER1, 0),
	DA9034_DVC(BUCK2, 725, 1500, 25, CDTV2, 5, VCC1, 2, OVER1, 1),
	DA9034_DVC(LDO2,  725, 1500, 25, SDTV2, 5, VCC1, 4, OVER1, 2),
	DA9034_DVC(LDO1, 1700, 2075, 25, MDTV1, 4, VCC1, 6, OVER3, 4),

	DA9034_LDO( 3, 1800, 3300, 100,  LDO643, 0, 4, OVER3, 5),
	DA9034_LDO( 4, 1800, 2900,1100,  LDO643, 4, 1, OVER3, 6),
	DA9034_LDO( 6, 2500, 2850,  50,  LDO643, 5, 3, OVER2, 0),
	DA9034_LDO( 7, 2700, 3050,  50,  LDO987, 0, 3, OVER2, 1),
	DA9034_LDO( 8, 2700, 2850,  50,  LDO987, 3, 2, OVER2, 2),
	DA9034_LDO( 9, 2700, 3050,  50,  LDO987, 5, 3, OVER2, 3),
	DA9034_LDO(10, 2700, 3050,  50, LDO1110, 0, 3, OVER2, 4),
	DA9034_LDO(11, 1800, 3300, 100, LDO1110, 4, 4, OVER2, 5),
	DA9034_LDO(12, 1700, 3050,  50, LDO1312, 0, 4, OVER3, 6),
	DA9034_LDO(13, 1800, 3300, 100, LDO1312, 4, 4, OVER2, 7),
	DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0),
	DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1),
	DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */

	/* DA9035 */
	DA9035_DVC(BUCK3, 1800, 2200, 100, 3DTV1, 3, VCC2, 0, OVER3, 3),
};

static inline struct da903x_regulator_info *find_regulator_info(int id)
{
	struct da903x_regulator_info *ri;
	int i;

	for (i = 0; i < ARRAY_SIZE(da903x_regulator_info); i++) {
		ri = &da903x_regulator_info[i];
		if (ri->desc.id == id)
			return ri;
	}
	return NULL;
}

static int __devinit da903x_regulator_probe(struct platform_device *pdev)
{
	struct da903x_regulator_info *ri = NULL;
	struct regulator_dev *rdev;

	ri = find_regulator_info(pdev->id);
	if (ri == NULL) {
		dev_err(&pdev->dev, "invalid regulator ID specified\n");
		return -EINVAL;
	}

	/* Workaround for the weird LDO12 voltage setting */
	if (ri->desc.id == DA9034_ID_LDO12) {
		ri->desc.ops = &da9034_regulator_ldo12_ops;
		ri->desc.n_voltages = ARRAY_SIZE(da9034_ldo12_data);
	}

	if (ri->desc.id == DA9030_ID_LDO14)
		ri->desc.ops = &da9030_regulator_ldo14_ops;

	if (ri->desc.id == DA9030_ID_LDO1 || ri->desc.id == DA9030_ID_LDO15)
		ri->desc.ops = &da9030_regulator_ldo1_15_ops;

	rdev = regulator_register(&ri->desc, &pdev->dev,
				  pdev->dev.platform_data, ri);
	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 int __devexit da903x_regulator_remove(struct platform_device *pdev)
{
	struct regulator_dev *rdev = platform_get_drvdata(pdev);

	regulator_unregister(rdev);
	return 0;
}

static struct platform_driver da903x_regulator_driver = {
	.driver	= {
		.name	= "da903x-regulator",
		.owner	= THIS_MODULE,
	},
	.probe		= da903x_regulator_probe,
	.remove		= __devexit_p(da903x_regulator_remove),
};

static int __init da903x_regulator_init(void)
{
	return platform_driver_register(&da903x_regulator_driver);
}
subsys_initcall(da903x_regulator_init);

static void __exit da903x_regulator_exit(void)
{
	platform_driver_unregister(&da903x_regulator_driver);
}
module_exit(da903x_regulator_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
	      "Mike Rapoport <mike@compulab.co.il>");
MODULE_DESCRIPTION("Regulator Driver for Dialog Semiconductor DA903X PMIC");
MODULE_ALIAS("platform:da903x-regulator");
Commit	Line	Data
129eef96 EM	1	/*
	2	* Regulators driver for Dialog Semiconductor DA903x
	3	*
	4	* Copyright (C) 2006-2008 Marvell International Ltd.
	5	* Copyright (C) 2008 Compulab Ltd.
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#include <linux/kernel.h>
	13	#include <linux/init.h>
	14	#include <linux/err.h>
	15	#include <linux/platform_device.h>
	16	#include <linux/regulator/driver.h>
	17	#include <linux/regulator/machine.h>
	18	#include <linux/mfd/da903x.h>
	19
	20	/* DA9030 Registers */
	21	#define DA9030_INVAL (-1)
	22	#define DA9030_LDO1011 (0x10)
	23	#define DA9030_LDO15 (0x11)
	24	#define DA9030_LDO1416 (0x12)
	25	#define DA9030_LDO1819 (0x13)
	26	#define DA9030_LDO17 (0x14)
	27	#define DA9030_BUCK2DVM1 (0x15)
	28	#define DA9030_BUCK2DVM2 (0x16)
	29	#define DA9030_RCTL11 (0x17)
	30	#define DA9030_RCTL21 (0x18)
	31	#define DA9030_LDO1 (0x90)
	32	#define DA9030_LDO23 (0x91)
	33	#define DA9030_LDO45 (0x92)
	34	#define DA9030_LDO6 (0x93)
	35	#define DA9030_LDO78 (0x94)
	36	#define DA9030_LDO912 (0x95)
	37	#define DA9030_BUCK (0x96)
	38	#define DA9030_RCTL12 (0x97)
	39	#define DA9030_RCTL22 (0x98)
	40	#define DA9030_LDO_UNLOCK (0xa0)
	41	#define DA9030_LDO_UNLOCK_MASK (0xe0)
	42	#define DA9034_OVER1 (0x10)
	43
	44	/* DA9034 Registers */
	45	#define DA9034_INVAL (-1)
	46	#define DA9034_OVER2 (0x11)
	47	#define DA9034_OVER3 (0x12)
	48	#define DA9034_LDO643 (0x13)
	49	#define DA9034_LDO987 (0x14)
	50	#define DA9034_LDO1110 (0x15)
	51	#define DA9034_LDO1312 (0x16)
	52	#define DA9034_LDO1514 (0x17)
	53	#define DA9034_VCC1 (0x20)
	54	#define DA9034_ADTV1 (0x23)
	55	#define DA9034_ADTV2 (0x24)
	56	#define DA9034_AVRC (0x25)
	57	#define DA9034_CDTV1 (0x26)
	58	#define DA9034_CDTV2 (0x27)
	59	#define DA9034_CVRC (0x28)
	60	#define DA9034_SDTV1 (0x29)
	61	#define DA9034_SDTV2 (0x2a)
	62	#define DA9034_SVRC (0x2b)
	63	#define DA9034_MDTV1 (0x32)
	64	#define DA9034_MDTV2 (0x33)
65	#define DA9034_MVRC (0x34)
66
0198d116 HZ	67	/* DA9035 Registers. DA9034 Registers are comptabile to DA9035. */
	68	#define DA9035_OVER3 (0x12)
	69	#define DA9035_VCC2 (0x1f)
	70	#define DA9035_3DTV1 (0x2c)
	71	#define DA9035_3DTV2 (0x2d)
	72	#define DA9035_3VRC (0x2e)
	73	#define DA9035_AUTOSKIP (0x2f)
	74
129eef96 EM	75	struct da903x_regulator_info {
	76	struct regulator_desc desc;
	77
	78	int min_uV;
	79	int max_uV;
	80	int step_uV;
	81	int vol_reg;
	82	int vol_shift;
	83	int vol_nbits;
	84	int update_reg;
	85	int update_bit;
	86	int enable_reg;
	87	int enable_bit;
	88	};
	89
c1b60873 HZ	90	static int da9034_ldo12_data[] = { 1700, 1750, 1800, 1850, 1900, 1950,
	91	2000, 2050, 2700, 2750, 2800, 2850,
	92	2900, 2950, 3000, 3050 };
	93
1841c0f2 JC	94	static inline struct device to_da903x_dev(struct regulator_dev rdev)
	95	{
	96	return rdev_get_dev(rdev)->parent->parent;
	97	}
	98
129eef96 EM	99	static inline int check_range(struct da903x_regulator_info *info,
	100	int min_uV, int max_uV)
	101	{
	102	if (min_uV < info->min_uV \|\| min_uV > info->max_uV)
	103	return -EINVAL;
	104
	105	return 0;
	106	}
	107
	108	/* DA9030/DA9034 common operations */
	109	static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
	110	int min_uV, int max_uV)
	111	{
	112	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	113	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	114	uint8_t val, mask;
	115
	116	if (check_range(info, min_uV, max_uV)) {
471d8d49	117	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	118	return -EINVAL;
	119	}
	120
	121	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	122	val <<= info->vol_shift;
	123	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	124
	125	return da903x_update(da9034_dev, info->vol_reg, val, mask);
	126	}
	127
	128	static int da903x_get_voltage(struct regulator_dev *rdev)
	129	{
	130	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	131	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	132	uint8_t val, mask;
	133	int ret;
	134
	135	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	136	if (ret)
	137	return ret;
	138
	139	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	140	val = (val & mask) >> info->vol_shift;
	141
	142	return info->min_uV + info->step_uV * val;
	143	}
	144
	145	static int da903x_enable(struct regulator_dev *rdev)
	146	{
	147	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	148	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	149
	150	return da903x_set_bits(da9034_dev, info->enable_reg,
	151	1 << info->enable_bit);
	152	}
	153
	154	static int da903x_disable(struct regulator_dev *rdev)
	155	{
	156	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	157	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	158
	159	return da903x_clr_bits(da9034_dev, info->enable_reg,
	160	1 << info->enable_bit);
	161	}
	162
	163	static int da903x_is_enabled(struct regulator_dev *rdev)
	164	{
	165	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	166	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	167	uint8_t reg_val;
	168	int ret;
	169
	170	ret = da903x_read(da9034_dev, info->enable_reg, &reg_val);
	171	if (ret)
	172	return ret;
	173
96186904	174	return !!(reg_val & (1 << info->enable_bit));
129eef96 EM	175	}
129eef96 EM	176
c1b60873 HZ	177	static int da903x_list_voltage(struct regulator_dev *rdev, unsigned selector)
	178	{
	179	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	180	int ret;
	181
	182	ret = info->min_uV + info->step_uV * selector;
	183	if (ret > info->max_uV)
	184	return -EINVAL;
	185	return ret;
	186	}
	187
129eef96 EM	188	/* DA9030 specific operations */
	189	static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
	190	int min_uV, int max_uV)
	191	{
	192	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	193	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	194	uint8_t val, mask;
	195	int ret;
	196
	197	if (check_range(info, min_uV, max_uV)) {
471d8d49	198	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	199	return -EINVAL;
	200	}
	201
	202	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	203	val <<= info->vol_shift;
	204	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	205	val \|= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
	206	mask \|= DA9030_LDO_UNLOCK_MASK;
	207
	208	/* write twice */
	209	ret = da903x_update(da903x_dev, info->vol_reg, val, mask);
	210	if (ret)
	211	return ret;
	212
	213	return da903x_update(da903x_dev, info->vol_reg, val, mask);
	214	}
	215
	216	static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
	217	int min_uV, int max_uV)
	218	{
	219	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	220	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	221	uint8_t val, mask;
	222	int thresh;
	223
	224	if (check_range(info, min_uV, max_uV)) {
471d8d49	225	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	226	return -EINVAL;
	227	}
	228
	229	thresh = (info->max_uV + info->min_uV) / 2;
	230	if (min_uV < thresh) {
	231	val = (thresh - min_uV + info->step_uV - 1) / info->step_uV;
	232	val \|= 0x4;
	233	} else {
	234	val = (min_uV - thresh + info->step_uV - 1) / info->step_uV;
	235	}
	236
	237	val <<= info->vol_shift;
	238	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	239
	240	return da903x_update(da903x_dev, info->vol_reg, val, mask);
	241	}
	242
	243	static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
	244	{
	245	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	246	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	247	uint8_t val, mask;
	248	int ret;
	249
	250	ret = da903x_read(da903x_dev, info->vol_reg, &val);
	251	if (ret)
	252	return ret;
	253
	254	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	255	val = (val & mask) >> info->vol_shift;
	256
	257	if (val & 0x4)
	258	return info->min_uV + info->step_uV * (3 - (val & ~0x4));
	259	else
	260	return (info->max_uV + info->min_uV) / 2 +
	261	info->step_uV * (val & ~0x4);
	262	}
	263
	264	/* DA9034 specific operations */
	265	static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
	266	int min_uV, int max_uV)
	267	{
	268	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	269	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	270	uint8_t val, mask;
	271	int ret;
	272
	273	if (check_range(info, min_uV, max_uV)) {
471d8d49	274	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	275	return -EINVAL;
	276	}
	277
	278	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
	279	val <<= info->vol_shift;
	280	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	281
	282	ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
	283	if (ret)
	284	return ret;
	285
	286	ret = da903x_set_bits(da9034_dev, info->update_reg,
	287	1 << info->update_bit);
	288	return ret;
	289	}
	290
	291	static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
	292	int min_uV, int max_uV)
	293	{
	294	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	295	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	296	uint8_t val, mask;
	297
	298	if (check_range(info, min_uV, max_uV)) {
471d8d49	299	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	300	return -EINVAL;
	301	}
	302
	303	val = (min_uV - info->min_uV + info->step_uV - 1) / info->step_uV;
55c1d7c6	304	val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
129eef96 EM	305	val <<= info->vol_shift;
	306	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	307
	308	return da903x_update(da9034_dev, info->vol_reg, val, mask);
	309	}
	310
	311	static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
	312	{
	313	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	314	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	315	uint8_t val, mask;
	316	int ret;
	317
	318	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	319	if (ret)
	320	return ret;
	321
	322	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	323	val = (val & mask) >> info->vol_shift;
	324
	325	if (val >= 8)
	326	return 2700000 + info->step_uV * (val - 8);
	327
	328	return info->min_uV + info->step_uV * val;
	329	}
	330
c1b60873 HZ	331	static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
	332	unsigned selector)
	333	{
495353a3	334	if (selector >= ARRAY_SIZE(da9034_ldo12_data))
c1b60873 HZ	335	return -EINVAL;
	336	return da9034_ldo12_data[selector] * 1000;
	337	}
	338
129eef96 EM	339	static struct regulator_ops da903x_regulator_ldo_ops = {
	340	.set_voltage = da903x_set_ldo_voltage,
	341	.get_voltage = da903x_get_voltage,
c1b60873	342	.list_voltage = da903x_list_voltage,
129eef96 EM	343	.enable = da903x_enable,
	344	.disable = da903x_disable,
	345	.is_enabled = da903x_is_enabled,
	346	};
	347
	348	/* NOTE: this is dedicated for the insane DA9030 LDO14 */
	349	static struct regulator_ops da9030_regulator_ldo14_ops = {
	350	.set_voltage = da9030_set_ldo14_voltage,
	351	.get_voltage = da9030_get_ldo14_voltage,
c1b60873	352	.list_voltage = da903x_list_voltage,
129eef96 EM	353	.enable = da903x_enable,
	354	.disable = da903x_disable,
	355	.is_enabled = da903x_is_enabled,
	356	};
	357
	358	/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
	359	static struct regulator_ops da9030_regulator_ldo1_15_ops = {
	360	.set_voltage = da9030_set_ldo1_15_voltage,
	361	.get_voltage = da903x_get_voltage,
c1b60873	362	.list_voltage = da903x_list_voltage,
129eef96 EM	363	.enable = da903x_enable,
	364	.disable = da903x_disable,
	365	.is_enabled = da903x_is_enabled,
	366	};
	367
	368	static struct regulator_ops da9034_regulator_dvc_ops = {
	369	.set_voltage = da9034_set_dvc_voltage,
	370	.get_voltage = da903x_get_voltage,
c1b60873	371	.list_voltage = da903x_list_voltage,
129eef96 EM	372	.enable = da903x_enable,
	373	.disable = da903x_disable,
	374	.is_enabled = da903x_is_enabled,
	375	};
	376
	377	/* NOTE: this is dedicated for the insane LDO12 */
	378	static struct regulator_ops da9034_regulator_ldo12_ops = {
	379	.set_voltage = da9034_set_ldo12_voltage,
	380	.get_voltage = da9034_get_ldo12_voltage,
c1b60873	381	.list_voltage = da9034_list_ldo12_voltage,
129eef96 EM	382	.enable = da903x_enable,
	383	.disable = da903x_disable,
	384	.is_enabled = da903x_is_enabled,
	385	};
	386
	387	#define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	388	{ \
	389	.desc = { \
	390	.name = "LDO" #_id, \
	391	.ops = &da903x_regulator_ldo_ops, \
	392	.type = REGULATOR_VOLTAGE, \
	393	.id = _pmic##_ID_LDO##_id, \
c1b60873	394	.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
129eef96 EM	395	.owner = THIS_MODULE, \
	396	}, \
	397	.min_uV = (min) * 1000, \
	398	.max_uV = (max) * 1000, \
	399	.step_uV = (step) * 1000, \
	400	.vol_reg = _pmic##_##vreg, \
	401	.vol_shift = (shift), \
	402	.vol_nbits = (nbits), \
	403	.enable_reg = _pmic##_##ereg, \
	404	.enable_bit = (ebit), \
	405	}
	406
c6db1828	407	#define DA903x_DVC(_pmic, _id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
fc4f42e7 HZ	408	{ \
	409	.desc = { \
	410	.name = #_id, \
	411	.ops = &da9034_regulator_dvc_ops, \
	412	.type = REGULATOR_VOLTAGE, \
c6db1828	413	.id = _pmic##_ID_##_id, \
c1b60873	414	.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
fc4f42e7 HZ	415	.owner = THIS_MODULE, \
	416	}, \
	417	.min_uV = (min) * 1000, \
	418	.max_uV = (max) * 1000, \
	419	.step_uV = (step) * 1000, \
c6db1828	420	.vol_reg = _pmic##_##vreg, \
0198d116 HZ	421	.vol_shift = (0), \
0198d116 HZ	422	.vol_nbits = (nbits), \
c6db1828	423	.update_reg = _pmic##_##ureg, \
0198d116	424	.update_bit = (ubit), \
c6db1828	425	.enable_reg = _pmic##_##ereg, \
0198d116 HZ	426	.enable_bit = (ebit), \
	427	}
	428
129eef96 EM	429	#define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	430	DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
	431
	432	#define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	433	DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
	434
c6db1828 MR	435	#define DA9030_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	436	DA903x_DVC(DA9030, _id, min, max, step, vreg, nbits, ureg, ubit, \
	437	ereg, ebit)
	438
	439	#define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	440	DA903x_DVC(DA9034, _id, min, max, step, vreg, nbits, ureg, ubit, \
	441	ereg, ebit)
	442
	443	#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	444	DA903x_DVC(DA9035, _id, min, max, step, vreg, nbits, ureg, ubit, \
	445	ereg, ebit)
	446
129eef96 EM	447	static struct da903x_regulator_info da903x_regulator_info[] = {
129eef96 EM	448	/* DA9030 */
fc4f42e7 HZ	449	DA9030_DVC(BUCK2, 850, 1625, 25, BUCK2DVM1, 5, BUCK2DVM1, 7, RCTL11, 0),
fc4f42e7 HZ	450
129eef96 EM	451	DA9030_LDO( 1, 1200, 3200, 100, LDO1, 0, 5, RCTL12, 1),
	452	DA9030_LDO( 2, 1800, 3200, 100, LDO23, 0, 4, RCTL12, 2),
	453	DA9030_LDO( 3, 1800, 3200, 100, LDO23, 4, 4, RCTL12, 3),
	454	DA9030_LDO( 4, 1800, 3200, 100, LDO45, 0, 4, RCTL12, 4),
	455	DA9030_LDO( 5, 1800, 3200, 100, LDO45, 4, 4, RCTL12, 5),
	456	DA9030_LDO( 6, 1800, 3200, 100, LDO6, 0, 4, RCTL12, 6),
	457	DA9030_LDO( 7, 1800, 3200, 100, LDO78, 0, 4, RCTL12, 7),
	458	DA9030_LDO( 8, 1800, 3200, 100, LDO78, 4, 4, RCTL22, 0),
	459	DA9030_LDO( 9, 1800, 3200, 100, LDO912, 0, 4, RCTL22, 1),
	460	DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2),
	461	DA9030_LDO(11, 1800, 3200, 100, LDO1011, 4, 4, RCTL22, 3),
	462	DA9030_LDO(12, 1800, 3200, 100, LDO912, 4, 4, RCTL22, 4),
	463	DA9030_LDO(14, 2760, 2940, 30, LDO1416, 0, 3, RCTL11, 4),
	464	DA9030_LDO(15, 1100, 2650, 50, LDO15, 0, 5, RCTL11, 5),
	465	DA9030_LDO(16, 1100, 2650, 50, LDO1416, 3, 5, RCTL11, 6),
	466	DA9030_LDO(17, 1800, 3200, 100, LDO17, 0, 4, RCTL11, 7),
	467	DA9030_LDO(18, 1800, 3200, 100, LDO1819, 0, 4, RCTL21, 2),
	468	DA9030_LDO(19, 1800, 3200, 100, LDO1819, 4, 4, RCTL21, 1),
	469	DA9030_LDO(13, 2100, 2100, 0, INVAL, 0, 0, RCTL11, 3), /* fixed @2.1V */
	470
	471	/* DA9034 */
e88267e1 HZ	472	DA9034_DVC(BUCK1, 725, 1500, 25, ADTV2, 5, VCC1, 0, OVER1, 0),
	473	DA9034_DVC(BUCK2, 725, 1500, 25, CDTV2, 5, VCC1, 2, OVER1, 1),
	474	DA9034_DVC(LDO2, 725, 1500, 25, SDTV2, 5, VCC1, 4, OVER1, 2),
129eef96 EM	475	DA9034_DVC(LDO1, 1700, 2075, 25, MDTV1, 4, VCC1, 6, OVER3, 4),
	476
	477	DA9034_LDO( 3, 1800, 3300, 100, LDO643, 0, 4, OVER3, 5),
	478	DA9034_LDO( 4, 1800, 2900,1100, LDO643, 4, 1, OVER3, 6),
	479	DA9034_LDO( 6, 2500, 2850, 50, LDO643, 5, 3, OVER2, 0),
	480	DA9034_LDO( 7, 2700, 3050, 50, LDO987, 0, 3, OVER2, 1),
	481	DA9034_LDO( 8, 2700, 2850, 50, LDO987, 3, 2, OVER2, 2),
	482	DA9034_LDO( 9, 2700, 3050, 50, LDO987, 5, 3, OVER2, 3),
	483	DA9034_LDO(10, 2700, 3050, 50, LDO1110, 0, 3, OVER2, 4),
	484	DA9034_LDO(11, 1800, 3300, 100, LDO1110, 4, 4, OVER2, 5),
	485	DA9034_LDO(12, 1700, 3050, 50, LDO1312, 0, 4, OVER3, 6),
	486	DA9034_LDO(13, 1800, 3300, 100, LDO1312, 4, 4, OVER2, 7),
	487	DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0),
	488	DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1),
	489	DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */
0198d116 HZ	490
	491	/* DA9035 */
	492	DA9035_DVC(BUCK3, 1800, 2200, 100, 3DTV1, 3, VCC2, 0, OVER3, 3),
129eef96 EM	493	};
	494
	495	static inline struct da903x_regulator_info *find_regulator_info(int id)
	496	{
	497	struct da903x_regulator_info *ri;
	498	int i;
	499
	500	for (i = 0; i < ARRAY_SIZE(da903x_regulator_info); i++) {
	501	ri = &da903x_regulator_info[i];
	502	if (ri->desc.id == id)
	503	return ri;
	504	}
	505	return NULL;
	506	}
	507
	508	static int __devinit da903x_regulator_probe(struct platform_device *pdev)
	509	{
	510	struct da903x_regulator_info *ri = NULL;
	511	struct regulator_dev *rdev;
	512
	513	ri = find_regulator_info(pdev->id);
	514	if (ri == NULL) {
	515	dev_err(&pdev->dev, "invalid regulator ID specified\n");
	516	return -EINVAL;
	517	}
	518
	519	/* Workaround for the weird LDO12 voltage setting */
c1b60873	520	if (ri->desc.id == DA9034_ID_LDO12) {
129eef96	521	ri->desc.ops = &da9034_regulator_ldo12_ops;
c1b60873 HZ	522	ri->desc.n_voltages = ARRAY_SIZE(da9034_ldo12_data);
c1b60873 HZ	523	}
129eef96 EM	524
	525	if (ri->desc.id == DA9030_ID_LDO14)
	526	ri->desc.ops = &da9030_regulator_ldo14_ops;
	527
	528	if (ri->desc.id == DA9030_ID_LDO1 \|\| ri->desc.id == DA9030_ID_LDO15)
	529	ri->desc.ops = &da9030_regulator_ldo1_15_ops;
	530
0527100f MB	531	rdev = regulator_register(&ri->desc, &pdev->dev,
0527100f MB	532	pdev->dev.platform_data, ri);
129eef96 EM	533	if (IS_ERR(rdev)) {
	534	dev_err(&pdev->dev, "failed to register regulator %s\n",
	535	ri->desc.name);
	536	return PTR_ERR(rdev);
	537	}
	538
	539	platform_set_drvdata(pdev, rdev);
	540	return 0;
	541	}
	542
	543	static int __devexit da903x_regulator_remove(struct platform_device *pdev)
	544	{
	545	struct regulator_dev *rdev = platform_get_drvdata(pdev);
	546
	547	regulator_unregister(rdev);
	548	return 0;
	549	}
	550
	551	static struct platform_driver da903x_regulator_driver = {
	552	.driver = {
	553	.name = "da903x-regulator",
	554	.owner = THIS_MODULE,
	555	},
	556	.probe = da903x_regulator_probe,
5b4662f0	557	.remove = __devexit_p(da903x_regulator_remove),
129eef96 EM	558	};
	559
	560	static int __init da903x_regulator_init(void)
	561	{
	562	return platform_driver_register(&da903x_regulator_driver);
	563	}
5a1b22be	564	subsys_initcall(da903x_regulator_init);
129eef96 EM	565
	566	static void __exit da903x_regulator_exit(void)
	567	{
	568	platform_driver_unregister(&da903x_regulator_driver);
	569	}
	570	module_exit(da903x_regulator_exit);
	571
	572	MODULE_LICENSE("GPL");
	573	MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
	574	"Mike Rapoport <mike@compulab.co.il>");
	575	MODULE_DESCRIPTION("Regulator Driver for Dialog Semiconductor DA903X PMIC");
	576	MODULE_ALIAS("platform:da903x-regulator");