[linux.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/module.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, unsigned *selector)
{
	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 = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
	*selector = 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 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,
				      unsigned *selector)
{
	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 = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
	*selector = val;
	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,
				    unsigned *selector)
{
	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 = DIV_ROUND_UP(thresh - min_uV, info->step_uV);
		val |= 0x4;
	} else {
		val = DIV_ROUND_UP(min_uV - thresh, info->step_uV);
	}

	*selector = val;
	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, unsigned *selector)
{
	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 = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
	*selector = val;
	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, unsigned *selector)
{
	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 = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
	val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
	*selector = 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, NULL);
	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 <[email protected]>"
	      "Mike Rapoport <[email protected]>");
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>
65602c32	15	#include <linux/module.h>
129eef96 EM	16	#include <linux/platform_device.h>
	17	#include <linux/regulator/driver.h>
	18	#include <linux/regulator/machine.h>
	19	#include <linux/mfd/da903x.h>
	20
	21	/* DA9030 Registers */
	22	#define DA9030_INVAL (-1)
	23	#define DA9030_LDO1011 (0x10)
	24	#define DA9030_LDO15 (0x11)
	25	#define DA9030_LDO1416 (0x12)
	26	#define DA9030_LDO1819 (0x13)
	27	#define DA9030_LDO17 (0x14)
	28	#define DA9030_BUCK2DVM1 (0x15)
	29	#define DA9030_BUCK2DVM2 (0x16)
	30	#define DA9030_RCTL11 (0x17)
	31	#define DA9030_RCTL21 (0x18)
	32	#define DA9030_LDO1 (0x90)
	33	#define DA9030_LDO23 (0x91)
	34	#define DA9030_LDO45 (0x92)
	35	#define DA9030_LDO6 (0x93)
	36	#define DA9030_LDO78 (0x94)
	37	#define DA9030_LDO912 (0x95)
	38	#define DA9030_BUCK (0x96)
	39	#define DA9030_RCTL12 (0x97)
	40	#define DA9030_RCTL22 (0x98)
	41	#define DA9030_LDO_UNLOCK (0xa0)
	42	#define DA9030_LDO_UNLOCK_MASK (0xe0)
	43	#define DA9034_OVER1 (0x10)
	44
	45	/* DA9034 Registers */
	46	#define DA9034_INVAL (-1)
	47	#define DA9034_OVER2 (0x11)
	48	#define DA9034_OVER3 (0x12)
	49	#define DA9034_LDO643 (0x13)
	50	#define DA9034_LDO987 (0x14)
	51	#define DA9034_LDO1110 (0x15)
	52	#define DA9034_LDO1312 (0x16)
	53	#define DA9034_LDO1514 (0x17)
	54	#define DA9034_VCC1 (0x20)
	55	#define DA9034_ADTV1 (0x23)
	56	#define DA9034_ADTV2 (0x24)
	57	#define DA9034_AVRC (0x25)
	58	#define DA9034_CDTV1 (0x26)
	59	#define DA9034_CDTV2 (0x27)
	60	#define DA9034_CVRC (0x28)
	61	#define DA9034_SDTV1 (0x29)
	62	#define DA9034_SDTV2 (0x2a)
	63	#define DA9034_SVRC (0x2b)
	64	#define DA9034_MDTV1 (0x32)
	65	#define DA9034_MDTV2 (0x33)
	66	#define DA9034_MVRC (0x34)
	67
0198d116 HZ	68	/* DA9035 Registers. DA9034 Registers are comptabile to DA9035. */
	69	#define DA9035_OVER3 (0x12)
	70	#define DA9035_VCC2 (0x1f)
	71	#define DA9035_3DTV1 (0x2c)
	72	#define DA9035_3DTV2 (0x2d)
	73	#define DA9035_3VRC (0x2e)
	74	#define DA9035_AUTOSKIP (0x2f)
	75
129eef96 EM	76	struct da903x_regulator_info {
	77	struct regulator_desc desc;
	78
	79	int min_uV;
	80	int max_uV;
	81	int step_uV;
	82	int vol_reg;
	83	int vol_shift;
	84	int vol_nbits;
	85	int update_reg;
	86	int update_bit;
	87	int enable_reg;
	88	int enable_bit;
	89	};
	90
c1b60873 HZ	91	static int da9034_ldo12_data[] = { 1700, 1750, 1800, 1850, 1900, 1950,
	92	2000, 2050, 2700, 2750, 2800, 2850,
	93	2900, 2950, 3000, 3050 };
	94
1841c0f2 JC	95	static inline struct device to_da903x_dev(struct regulator_dev rdev)
	96	{
	97	return rdev_get_dev(rdev)->parent->parent;
	98	}
	99
129eef96 EM	100	static inline int check_range(struct da903x_regulator_info *info,
	101	int min_uV, int max_uV)
	102	{
	103	if (min_uV < info->min_uV \|\| min_uV > info->max_uV)
	104	return -EINVAL;
	105
	106	return 0;
	107	}
	108
	109	/* DA9030/DA9034 common operations */
	110	static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
3a93f2a9	111	int min_uV, int max_uV, unsigned *selector)
129eef96 EM	112	{
129eef96 EM	113	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	114	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	115	uint8_t val, mask;
	116
	117	if (check_range(info, min_uV, max_uV)) {
471d8d49	118	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	119	return -EINVAL;
	120	}
	121
ae76e830	122	val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
3a93f2a9	123	*selector = val;
129eef96 EM	124	val <<= info->vol_shift;
	125	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	126
	127	return da903x_update(da9034_dev, info->vol_reg, val, mask);
	128	}
	129
	130	static int da903x_get_voltage(struct regulator_dev *rdev)
	131	{
	132	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	133	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	134	uint8_t val, mask;
	135	int ret;
	136
	137	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	138	if (ret)
	139	return ret;
	140
	141	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	142	val = (val & mask) >> info->vol_shift;
	143
	144	return info->min_uV + info->step_uV * val;
	145	}
	146
	147	static int da903x_enable(struct regulator_dev *rdev)
	148	{
	149	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	150	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	151
	152	return da903x_set_bits(da9034_dev, info->enable_reg,
	153	1 << info->enable_bit);
	154	}
	155
	156	static int da903x_disable(struct regulator_dev *rdev)
	157	{
	158	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	159	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	160
	161	return da903x_clr_bits(da9034_dev, info->enable_reg,
	162	1 << info->enable_bit);
	163	}
	164
	165	static int da903x_is_enabled(struct regulator_dev *rdev)
	166	{
	167	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	168	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	169	uint8_t reg_val;
	170	int ret;
	171
	172	ret = da903x_read(da9034_dev, info->enable_reg, &reg_val);
	173	if (ret)
	174	return ret;
	175
96186904	176	return !!(reg_val & (1 << info->enable_bit));
129eef96 EM	177	}
129eef96 EM	178
c1b60873 HZ	179	static int da903x_list_voltage(struct regulator_dev *rdev, unsigned selector)
	180	{
	181	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	182	int ret;
	183
	184	ret = info->min_uV + info->step_uV * selector;
	185	if (ret > info->max_uV)
	186	return -EINVAL;
	187	return ret;
	188	}
	189
129eef96 EM	190	/* DA9030 specific operations */
129eef96 EM	191	static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
3a93f2a9 MB	192	int min_uV, int max_uV,
3a93f2a9 MB	193	unsigned *selector)
129eef96 EM	194	{
129eef96 EM	195	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	196	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	197	uint8_t val, mask;
	198	int ret;
	199
	200	if (check_range(info, min_uV, max_uV)) {
471d8d49	201	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	202	return -EINVAL;
	203	}
	204
ae76e830	205	val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
3a93f2a9	206	*selector = val;
129eef96 EM	207	val <<= info->vol_shift;
	208	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	209	val \|= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
	210	mask \|= DA9030_LDO_UNLOCK_MASK;
	211
	212	/* write twice */
	213	ret = da903x_update(da903x_dev, info->vol_reg, val, mask);
	214	if (ret)
	215	return ret;
	216
	217	return da903x_update(da903x_dev, info->vol_reg, val, mask);
	218	}
	219
	220	static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
3a93f2a9 MB	221	int min_uV, int max_uV,
3a93f2a9 MB	222	unsigned *selector)
129eef96 EM	223	{
129eef96 EM	224	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	225	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	226	uint8_t val, mask;
	227	int thresh;
	228
	229	if (check_range(info, min_uV, max_uV)) {
471d8d49	230	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	231	return -EINVAL;
	232	}
	233
	234	thresh = (info->max_uV + info->min_uV) / 2;
	235	if (min_uV < thresh) {
ae76e830	236	val = DIV_ROUND_UP(thresh - min_uV, info->step_uV);
129eef96 EM	237	val \|= 0x4;
129eef96 EM	238	} else {
ae76e830	239	val = DIV_ROUND_UP(min_uV - thresh, info->step_uV);
129eef96 EM	240	}
129eef96 EM	241
3a93f2a9	242	*selector = val;
129eef96 EM	243	val <<= info->vol_shift;
	244	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	245
	246	return da903x_update(da903x_dev, info->vol_reg, val, mask);
	247	}
	248
	249	static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
	250	{
	251	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	252	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	253	uint8_t val, mask;
	254	int ret;
	255
	256	ret = da903x_read(da903x_dev, info->vol_reg, &val);
	257	if (ret)
	258	return ret;
	259
	260	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	261	val = (val & mask) >> info->vol_shift;
	262
	263	if (val & 0x4)
	264	return info->min_uV + info->step_uV * (3 - (val & ~0x4));
	265	else
	266	return (info->max_uV + info->min_uV) / 2 +
	267	info->step_uV * (val & ~0x4);
	268	}
	269
	270	/* DA9034 specific operations */
	271	static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
3a93f2a9	272	int min_uV, int max_uV, unsigned *selector)
129eef96 EM	273	{
129eef96 EM	274	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	275	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	276	uint8_t val, mask;
	277	int ret;
	278
	279	if (check_range(info, min_uV, max_uV)) {
471d8d49	280	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	281	return -EINVAL;
	282	}
	283
ae76e830	284	val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
3a93f2a9	285	*selector = val;
129eef96 EM	286	val <<= info->vol_shift;
	287	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	288
	289	ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
	290	if (ret)
	291	return ret;
	292
	293	ret = da903x_set_bits(da9034_dev, info->update_reg,
	294	1 << info->update_bit);
	295	return ret;
	296	}
	297
	298	static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
3a93f2a9	299	int min_uV, int max_uV, unsigned *selector)
129eef96 EM	300	{
129eef96 EM	301	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	302	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	303	uint8_t val, mask;
	304
	305	if (check_range(info, min_uV, max_uV)) {
471d8d49	306	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	307	return -EINVAL;
	308	}
	309
ae76e830	310	val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
55c1d7c6	311	val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
3a93f2a9	312	*selector = val;
129eef96 EM	313	val <<= info->vol_shift;
	314	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	315
	316	return da903x_update(da9034_dev, info->vol_reg, val, mask);
	317	}
	318
	319	static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
	320	{
	321	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	322	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	323	uint8_t val, mask;
	324	int ret;
	325
	326	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	327	if (ret)
	328	return ret;
	329
	330	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	331	val = (val & mask) >> info->vol_shift;
	332
	333	if (val >= 8)
	334	return 2700000 + info->step_uV * (val - 8);
	335
	336	return info->min_uV + info->step_uV * val;
	337	}
	338
c1b60873 HZ	339	static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
	340	unsigned selector)
	341	{
495353a3	342	if (selector >= ARRAY_SIZE(da9034_ldo12_data))
c1b60873 HZ	343	return -EINVAL;
	344	return da9034_ldo12_data[selector] * 1000;
	345	}
	346
129eef96 EM	347	static struct regulator_ops da903x_regulator_ldo_ops = {
	348	.set_voltage = da903x_set_ldo_voltage,
	349	.get_voltage = da903x_get_voltage,
c1b60873	350	.list_voltage = da903x_list_voltage,
129eef96 EM	351	.enable = da903x_enable,
	352	.disable = da903x_disable,
	353	.is_enabled = da903x_is_enabled,
	354	};
	355
	356	/* NOTE: this is dedicated for the insane DA9030 LDO14 */
	357	static struct regulator_ops da9030_regulator_ldo14_ops = {
	358	.set_voltage = da9030_set_ldo14_voltage,
	359	.get_voltage = da9030_get_ldo14_voltage,
c1b60873	360	.list_voltage = da903x_list_voltage,
129eef96 EM	361	.enable = da903x_enable,
	362	.disable = da903x_disable,
	363	.is_enabled = da903x_is_enabled,
	364	};
	365
	366	/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
	367	static struct regulator_ops da9030_regulator_ldo1_15_ops = {
	368	.set_voltage = da9030_set_ldo1_15_voltage,
	369	.get_voltage = da903x_get_voltage,
c1b60873	370	.list_voltage = da903x_list_voltage,
129eef96 EM	371	.enable = da903x_enable,
	372	.disable = da903x_disable,
	373	.is_enabled = da903x_is_enabled,
	374	};
	375
	376	static struct regulator_ops da9034_regulator_dvc_ops = {
	377	.set_voltage = da9034_set_dvc_voltage,
	378	.get_voltage = da903x_get_voltage,
c1b60873	379	.list_voltage = da903x_list_voltage,
129eef96 EM	380	.enable = da903x_enable,
	381	.disable = da903x_disable,
	382	.is_enabled = da903x_is_enabled,
	383	};
	384
	385	/* NOTE: this is dedicated for the insane LDO12 */
	386	static struct regulator_ops da9034_regulator_ldo12_ops = {
	387	.set_voltage = da9034_set_ldo12_voltage,
	388	.get_voltage = da9034_get_ldo12_voltage,
c1b60873	389	.list_voltage = da9034_list_ldo12_voltage,
129eef96 EM	390	.enable = da903x_enable,
	391	.disable = da903x_disable,
	392	.is_enabled = da903x_is_enabled,
	393	};
	394
	395	#define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	396	{ \
	397	.desc = { \
	398	.name = "LDO" #_id, \
	399	.ops = &da903x_regulator_ldo_ops, \
	400	.type = REGULATOR_VOLTAGE, \
	401	.id = _pmic##_ID_LDO##_id, \
c1b60873	402	.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
129eef96 EM	403	.owner = THIS_MODULE, \
	404	}, \
	405	.min_uV = (min) * 1000, \
	406	.max_uV = (max) * 1000, \
	407	.step_uV = (step) * 1000, \
	408	.vol_reg = _pmic##_##vreg, \
	409	.vol_shift = (shift), \
	410	.vol_nbits = (nbits), \
	411	.enable_reg = _pmic##_##ereg, \
	412	.enable_bit = (ebit), \
	413	}
	414
c6db1828	415	#define DA903x_DVC(_pmic, _id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
fc4f42e7 HZ	416	{ \
	417	.desc = { \
	418	.name = #_id, \
	419	.ops = &da9034_regulator_dvc_ops, \
	420	.type = REGULATOR_VOLTAGE, \
c6db1828	421	.id = _pmic##_ID_##_id, \
c1b60873	422	.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
fc4f42e7 HZ	423	.owner = THIS_MODULE, \
	424	}, \
	425	.min_uV = (min) * 1000, \
	426	.max_uV = (max) * 1000, \
	427	.step_uV = (step) * 1000, \
c6db1828	428	.vol_reg = _pmic##_##vreg, \
0198d116 HZ	429	.vol_shift = (0), \
0198d116 HZ	430	.vol_nbits = (nbits), \
c6db1828	431	.update_reg = _pmic##_##ureg, \
0198d116	432	.update_bit = (ubit), \
c6db1828	433	.enable_reg = _pmic##_##ereg, \
0198d116 HZ	434	.enable_bit = (ebit), \
	435	}
	436
129eef96 EM	437	#define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	438	DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
	439
	440	#define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	441	DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
	442
c6db1828 MR	443	#define DA9030_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	444	DA903x_DVC(DA9030, _id, min, max, step, vreg, nbits, ureg, ubit, \
	445	ereg, ebit)
	446
	447	#define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	448	DA903x_DVC(DA9034, _id, min, max, step, vreg, nbits, ureg, ubit, \
	449	ereg, ebit)
	450
	451	#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	452	DA903x_DVC(DA9035, _id, min, max, step, vreg, nbits, ureg, ubit, \
	453	ereg, ebit)
	454
129eef96 EM	455	static struct da903x_regulator_info da903x_regulator_info[] = {
129eef96 EM	456	/* DA9030 */
fc4f42e7 HZ	457	DA9030_DVC(BUCK2, 850, 1625, 25, BUCK2DVM1, 5, BUCK2DVM1, 7, RCTL11, 0),
fc4f42e7 HZ	458
129eef96 EM	459	DA9030_LDO( 1, 1200, 3200, 100, LDO1, 0, 5, RCTL12, 1),
	460	DA9030_LDO( 2, 1800, 3200, 100, LDO23, 0, 4, RCTL12, 2),
	461	DA9030_LDO( 3, 1800, 3200, 100, LDO23, 4, 4, RCTL12, 3),
	462	DA9030_LDO( 4, 1800, 3200, 100, LDO45, 0, 4, RCTL12, 4),
	463	DA9030_LDO( 5, 1800, 3200, 100, LDO45, 4, 4, RCTL12, 5),
	464	DA9030_LDO( 6, 1800, 3200, 100, LDO6, 0, 4, RCTL12, 6),
	465	DA9030_LDO( 7, 1800, 3200, 100, LDO78, 0, 4, RCTL12, 7),
	466	DA9030_LDO( 8, 1800, 3200, 100, LDO78, 4, 4, RCTL22, 0),
	467	DA9030_LDO( 9, 1800, 3200, 100, LDO912, 0, 4, RCTL22, 1),
	468	DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2),
	469	DA9030_LDO(11, 1800, 3200, 100, LDO1011, 4, 4, RCTL22, 3),
	470	DA9030_LDO(12, 1800, 3200, 100, LDO912, 4, 4, RCTL22, 4),
	471	DA9030_LDO(14, 2760, 2940, 30, LDO1416, 0, 3, RCTL11, 4),
	472	DA9030_LDO(15, 1100, 2650, 50, LDO15, 0, 5, RCTL11, 5),
	473	DA9030_LDO(16, 1100, 2650, 50, LDO1416, 3, 5, RCTL11, 6),
	474	DA9030_LDO(17, 1800, 3200, 100, LDO17, 0, 4, RCTL11, 7),
	475	DA9030_LDO(18, 1800, 3200, 100, LDO1819, 0, 4, RCTL21, 2),
	476	DA9030_LDO(19, 1800, 3200, 100, LDO1819, 4, 4, RCTL21, 1),
	477	DA9030_LDO(13, 2100, 2100, 0, INVAL, 0, 0, RCTL11, 3), /* fixed @2.1V */
	478
	479	/* DA9034 */
e88267e1 HZ	480	DA9034_DVC(BUCK1, 725, 1500, 25, ADTV2, 5, VCC1, 0, OVER1, 0),
	481	DA9034_DVC(BUCK2, 725, 1500, 25, CDTV2, 5, VCC1, 2, OVER1, 1),
	482	DA9034_DVC(LDO2, 725, 1500, 25, SDTV2, 5, VCC1, 4, OVER1, 2),
129eef96 EM	483	DA9034_DVC(LDO1, 1700, 2075, 25, MDTV1, 4, VCC1, 6, OVER3, 4),
	484
	485	DA9034_LDO( 3, 1800, 3300, 100, LDO643, 0, 4, OVER3, 5),
	486	DA9034_LDO( 4, 1800, 2900,1100, LDO643, 4, 1, OVER3, 6),
	487	DA9034_LDO( 6, 2500, 2850, 50, LDO643, 5, 3, OVER2, 0),
	488	DA9034_LDO( 7, 2700, 3050, 50, LDO987, 0, 3, OVER2, 1),
	489	DA9034_LDO( 8, 2700, 2850, 50, LDO987, 3, 2, OVER2, 2),
	490	DA9034_LDO( 9, 2700, 3050, 50, LDO987, 5, 3, OVER2, 3),
	491	DA9034_LDO(10, 2700, 3050, 50, LDO1110, 0, 3, OVER2, 4),
	492	DA9034_LDO(11, 1800, 3300, 100, LDO1110, 4, 4, OVER2, 5),
	493	DA9034_LDO(12, 1700, 3050, 50, LDO1312, 0, 4, OVER3, 6),
	494	DA9034_LDO(13, 1800, 3300, 100, LDO1312, 4, 4, OVER2, 7),
	495	DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0),
	496	DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1),
	497	DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */
0198d116 HZ	498
	499	/* DA9035 */
	500	DA9035_DVC(BUCK3, 1800, 2200, 100, 3DTV1, 3, VCC2, 0, OVER3, 3),
129eef96 EM	501	};
	502
	503	static inline struct da903x_regulator_info *find_regulator_info(int id)
	504	{
	505	struct da903x_regulator_info *ri;
	506	int i;
	507
	508	for (i = 0; i < ARRAY_SIZE(da903x_regulator_info); i++) {
	509	ri = &da903x_regulator_info[i];
	510	if (ri->desc.id == id)
	511	return ri;
	512	}
	513	return NULL;
	514	}
	515
	516	static int __devinit da903x_regulator_probe(struct platform_device *pdev)
	517	{
	518	struct da903x_regulator_info *ri = NULL;
	519	struct regulator_dev *rdev;
	520
	521	ri = find_regulator_info(pdev->id);
	522	if (ri == NULL) {
	523	dev_err(&pdev->dev, "invalid regulator ID specified\n");
	524	return -EINVAL;
	525	}
	526
	527	/* Workaround for the weird LDO12 voltage setting */
c1b60873	528	if (ri->desc.id == DA9034_ID_LDO12) {
129eef96	529	ri->desc.ops = &da9034_regulator_ldo12_ops;
c1b60873 HZ	530	ri->desc.n_voltages = ARRAY_SIZE(da9034_ldo12_data);
c1b60873 HZ	531	}
129eef96 EM	532
	533	if (ri->desc.id == DA9030_ID_LDO14)
	534	ri->desc.ops = &da9030_regulator_ldo14_ops;
	535
	536	if (ri->desc.id == DA9030_ID_LDO1 \|\| ri->desc.id == DA9030_ID_LDO15)
	537	ri->desc.ops = &da9030_regulator_ldo1_15_ops;
	538
0527100f	539	rdev = regulator_register(&ri->desc, &pdev->dev,
2c043bcb	540	pdev->dev.platform_data, ri, NULL);
129eef96 EM	541	if (IS_ERR(rdev)) {
	542	dev_err(&pdev->dev, "failed to register regulator %s\n",
	543	ri->desc.name);
	544	return PTR_ERR(rdev);
	545	}
	546
	547	platform_set_drvdata(pdev, rdev);
	548	return 0;
	549	}
	550
	551	static int __devexit da903x_regulator_remove(struct platform_device *pdev)
	552	{
	553	struct regulator_dev *rdev = platform_get_drvdata(pdev);
	554
	555	regulator_unregister(rdev);
	556	return 0;
	557	}
	558
	559	static struct platform_driver da903x_regulator_driver = {
	560	.driver = {
	561	.name = "da903x-regulator",
	562	.owner = THIS_MODULE,
	563	},
	564	.probe = da903x_regulator_probe,
5b4662f0	565	.remove = __devexit_p(da903x_regulator_remove),
129eef96 EM	566	};
	567
	568	static int __init da903x_regulator_init(void)
	569	{
	570	return platform_driver_register(&da903x_regulator_driver);
	571	}
5a1b22be	572	subsys_initcall(da903x_regulator_init);
129eef96 EM	573
	574	static void __exit da903x_regulator_exit(void)
	575	{
	576	platform_driver_unregister(&da903x_regulator_driver);
	577	}
	578	module_exit(da903x_regulator_exit);
	579
	580	MODULE_LICENSE("GPL");
	581	MODULE_AUTHOR("Eric Miao <[email protected]>"
	582	"Mike Rapoport <[email protected]>");
	583	MODULE_DESCRIPTION("Regulator Driver for Dialog Semiconductor DA903X PMIC");
	584	MODULE_ALIAS("platform:da903x-regulator");