[mirror_ubuntu-jammy-kernel.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	max_uV;
	int	vol_reg;
	int	vol_shift;
	int	vol_nbits;
	int	update_reg;
	int	update_bit;
	int	enable_reg;
	int	enable_bit;
};

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->desc.min_uV || min_uV > info->max_uV)
		return -EINVAL;

	return 0;
}

/* DA9030/DA9034 common operations */
static int da903x_set_ldo_voltage_sel(struct regulator_dev *rdev,
				      unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;

	val = selector << 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_sel(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 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));
}

/* DA9030 specific operations */
static int da9030_set_ldo1_15_voltage_sel(struct regulator_dev *rdev,
					  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;

	val = selector << 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_sel(struct regulator_dev *rdev,
					unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da903x_dev = to_da903x_dev(rdev);
	uint8_t val, mask;

	val = selector << 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_map_ldo14_voltage(struct regulator_dev *rdev,
				    int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int thresh, sel;

	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->desc.min_uV) / 2;
	if (min_uV < thresh) {
		sel = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
		sel |= 0x4;
	} else {
		sel = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
	}

	return sel;
}

static int da9030_get_ldo14_voltage_sel(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;

	return val;
}

static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
				     unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int volt;

	if (selector & 0x4)
		volt = rdev->desc->min_uV +
		       rdev->desc->uV_step * (3 - (selector & ~0x4));
	else
		volt = (info->max_uV + rdev->desc->min_uV) / 2 +
		       rdev->desc->uV_step * (selector & ~0x4);

	if (volt > info->max_uV)
		return -EINVAL;

	return volt;
}

/* DA9034 specific operations */
static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
				      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;

	val = selector << 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_sel(struct regulator_dev *rdev,
					unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	struct device *da9034_dev = to_da903x_dev(rdev);
	uint8_t val, mask;

	val = selector << 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_map_ldo12_voltage(struct regulator_dev *rdev,
				    int min_uV, int max_uV)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int sel;

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

	sel = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
	sel = (sel >= 20) ? sel - 12 : ((sel > 7) ? 8 : sel);

	return sel;
}

static int da9034_get_ldo12_voltage_sel(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 val;
}

static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
				     unsigned selector)
{
	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	int volt;

	if (selector >= 8)
		volt = 2700000 + rdev->desc->uV_step * (selector - 8);
	else
		volt = rdev->desc->min_uV + rdev->desc->uV_step * selector;

	if (volt > info->max_uV)
		return -EINVAL;

	return volt;
}

static struct regulator_ops da903x_regulator_ldo_ops = {
	.set_voltage_sel = da903x_set_ldo_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear,
	.map_voltage	= regulator_map_voltage_linear,
	.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_sel = da9030_set_ldo14_voltage_sel,
	.get_voltage_sel = da9030_get_ldo14_voltage_sel,
	.list_voltage	= da9030_list_ldo14_voltage,
	.map_voltage	= da9030_map_ldo14_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_sel = da9030_set_ldo1_15_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear,
	.map_voltage	= regulator_map_voltage_linear,
	.enable		= da903x_enable,
	.disable	= da903x_disable,
	.is_enabled	= da903x_is_enabled,
};

static struct regulator_ops da9034_regulator_dvc_ops = {
	.set_voltage_sel = da9034_set_dvc_voltage_sel,
	.get_voltage_sel = da903x_get_voltage_sel,
	.list_voltage	= regulator_list_voltage_linear,
	.map_voltage	= regulator_map_voltage_linear,
	.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_sel = da9034_set_ldo12_voltage_sel,
	.get_voltage_sel = da9034_get_ldo12_voltage_sel,
	.list_voltage	= da9034_list_ldo12_voltage,
	.map_voltage	= da9034_map_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,				\
		.uV_step = (step) * 1000,				\
	},								\
	.max_uV		= (max) * 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,					\
		.uV_step = (step) * 1000,				\
	},								\
	.max_uV		= (max) * 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;
	struct regulator_config config = { };

	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 = 16;
	}

	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;

	config.dev = &pdev->dev;
	config.init_data = pdev->dev.platform_data;
	config.driver_data = ri;

	rdev = regulator_register(&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 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>
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
129eef96	79	int max_uV;
129eef96 EM	80	int vol_reg;
	81	int vol_shift;
	82	int vol_nbits;
	83	int update_reg;
	84	int update_bit;
	85	int enable_reg;
	86	int enable_bit;
	87	};
	88
1841c0f2 JC	89	static inline struct device to_da903x_dev(struct regulator_dev rdev)
	90	{
	91	return rdev_get_dev(rdev)->parent->parent;
	92	}
	93
129eef96 EM	94	static inline int check_range(struct da903x_regulator_info *info,
	95	int min_uV, int max_uV)
	96	{
70b4e786	97	if (min_uV < info->desc.min_uV \|\| min_uV > info->max_uV)
129eef96 EM	98	return -EINVAL;
	99
	100	return 0;
	101	}
	102
	103	/* DA9030/DA9034 common operations */
c972a029 AL	104	static int da903x_set_ldo_voltage_sel(struct regulator_dev *rdev,
c972a029 AL	105	unsigned selector)
129eef96 EM	106	{
129eef96 EM	107	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	108	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	109	uint8_t val, mask;
129eef96 EM	110
c972a029	111	val = selector << info->vol_shift;
129eef96 EM	112	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	113
	114	return da903x_update(da9034_dev, info->vol_reg, val, mask);
	115	}
	116
9447f35a	117	static int da903x_get_voltage_sel(struct regulator_dev *rdev)
129eef96 EM	118	{
129eef96 EM	119	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	120	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	121	uint8_t val, mask;
	122	int ret;
	123
	124	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	125	if (ret)
	126	return ret;
	127
	128	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	129	val = (val & mask) >> info->vol_shift;
	130
9447f35a	131	return val;
129eef96 EM	132	}
	133
	134	static int da903x_enable(struct regulator_dev *rdev)
	135	{
	136	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	137	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	138
	139	return da903x_set_bits(da9034_dev, info->enable_reg,
	140	1 << info->enable_bit);
	141	}
	142
	143	static int da903x_disable(struct regulator_dev *rdev)
	144	{
	145	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	146	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	147
	148	return da903x_clr_bits(da9034_dev, info->enable_reg,
	149	1 << info->enable_bit);
	150	}
	151
	152	static int da903x_is_enabled(struct regulator_dev *rdev)
	153	{
	154	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	155	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	156	uint8_t reg_val;
	157	int ret;
	158
	159	ret = da903x_read(da9034_dev, info->enable_reg, &reg_val);
	160	if (ret)
	161	return ret;
	162
96186904	163	return !!(reg_val & (1 << info->enable_bit));
129eef96 EM	164	}
	165
	166	/* DA9030 specific operations */
c972a029 AL	167	static int da9030_set_ldo1_15_voltage_sel(struct regulator_dev *rdev,
c972a029 AL	168	unsigned selector)
129eef96 EM	169	{
129eef96 EM	170	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	171	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	172	uint8_t val, mask;
	173	int ret;
	174
c972a029	175	val = selector << info->vol_shift;
129eef96 EM	176	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	177	val \|= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
	178	mask \|= DA9030_LDO_UNLOCK_MASK;
	179
	180	/* write twice */
	181	ret = da903x_update(da903x_dev, info->vol_reg, val, mask);
	182	if (ret)
	183	return ret;
	184
	185	return da903x_update(da903x_dev, info->vol_reg, val, mask);
	186	}
	187
c972a029 AL	188	static int da9030_set_ldo14_voltage_sel(struct regulator_dev *rdev,
c972a029 AL	189	unsigned selector)
129eef96 EM	190	{
129eef96 EM	191	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	192	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96	193	uint8_t val, mask;
c972a029 AL	194
	195	val = selector << info->vol_shift;
	196	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	197
	198	return da903x_update(da903x_dev, info->vol_reg, val, mask);
	199	}
	200
	201	static int da9030_map_ldo14_voltage(struct regulator_dev *rdev,
	202	int min_uV, int max_uV)
	203	{
	204	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	205	int thresh, sel;
129eef96 EM	206
129eef96 EM	207	if (check_range(info, min_uV, max_uV)) {
471d8d49	208	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	209	return -EINVAL;
	210	}
	211
70b4e786	212	thresh = (info->max_uV + info->desc.min_uV) / 2;
129eef96	213	if (min_uV < thresh) {
c972a029 AL	214	sel = DIV_ROUND_UP(thresh - min_uV, info->desc.uV_step);
c972a029 AL	215	sel \|= 0x4;
129eef96	216	} else {
c972a029	217	sel = DIV_ROUND_UP(min_uV - thresh, info->desc.uV_step);
129eef96 EM	218	}
129eef96 EM	219
c972a029	220	return sel;
129eef96 EM	221	}
129eef96 EM	222
9447f35a	223	static int da9030_get_ldo14_voltage_sel(struct regulator_dev *rdev)
129eef96 EM	224	{
129eef96 EM	225	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	226	struct device *da903x_dev = to_da903x_dev(rdev);
129eef96 EM	227	uint8_t val, mask;
	228	int ret;
	229
	230	ret = da903x_read(da903x_dev, info->vol_reg, &val);
	231	if (ret)
	232	return ret;
	233
	234	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	235	val = (val & mask) >> info->vol_shift;
	236
9447f35a	237	return val;
129eef96 EM	238	}
129eef96 EM	239
d4eb56a1 AL	240	static int da9030_list_ldo14_voltage(struct regulator_dev *rdev,
	241	unsigned selector)
	242	{
	243	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	244	int volt;
	245
	246	if (selector & 0x4)
70b4e786 AL	247	volt = rdev->desc->min_uV +
70b4e786 AL	248	rdev->desc->uV_step * (3 - (selector & ~0x4));
d4eb56a1	249	else
70b4e786 AL	250	volt = (info->max_uV + rdev->desc->min_uV) / 2 +
70b4e786 AL	251	rdev->desc->uV_step * (selector & ~0x4);
d4eb56a1 AL	252
	253	if (volt > info->max_uV)
	254	return -EINVAL;
	255
	256	return volt;
	257	}
	258
129eef96	259	/* DA9034 specific operations */
c972a029 AL	260	static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
c972a029 AL	261	unsigned selector)
129eef96 EM	262	{
129eef96 EM	263	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	264	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	265	uint8_t val, mask;
	266	int ret;
	267
c972a029	268	val = selector << info->vol_shift;
129eef96 EM	269	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	270
	271	ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
	272	if (ret)
	273	return ret;
	274
	275	ret = da903x_set_bits(da9034_dev, info->update_reg,
	276	1 << info->update_bit);
	277	return ret;
	278	}
	279
c972a029 AL	280	static int da9034_set_ldo12_voltage_sel(struct regulator_dev *rdev,
c972a029 AL	281	unsigned selector)
129eef96 EM	282	{
129eef96 EM	283	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	284	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	285	uint8_t val, mask;
129eef96 EM	286
c972a029 AL	287	val = selector << info->vol_shift;
	288	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	289
	290	return da903x_update(da9034_dev, info->vol_reg, val, mask);
	291	}
	292
	293	static int da9034_map_ldo12_voltage(struct regulator_dev *rdev,
	294	int min_uV, int max_uV)
	295	{
	296	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	297	int sel;
	298
129eef96	299	if (check_range(info, min_uV, max_uV)) {
471d8d49	300	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
129eef96 EM	301	return -EINVAL;
	302	}
	303
c972a029 AL	304	sel = DIV_ROUND_UP(min_uV - info->desc.min_uV, info->desc.uV_step);
c972a029 AL	305	sel = (sel >= 20) ? sel - 12 : ((sel > 7) ? 8 : sel);
129eef96	306
c972a029	307	return sel;
129eef96 EM	308	}
129eef96 EM	309
9447f35a	310	static int da9034_get_ldo12_voltage_sel(struct regulator_dev *rdev)
129eef96 EM	311	{
129eef96 EM	312	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
1841c0f2	313	struct device *da9034_dev = to_da903x_dev(rdev);
129eef96 EM	314	uint8_t val, mask;
	315	int ret;
	316
	317	ret = da903x_read(da9034_dev, info->vol_reg, &val);
	318	if (ret)
	319	return ret;
	320
	321	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	322	val = (val & mask) >> info->vol_shift;
	323
9447f35a	324	return val;
129eef96 EM	325	}
129eef96 EM	326
c1b60873 HZ	327	static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
	328	unsigned selector)
	329	{
9447f35a AL	330	struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
	331	int volt;
	332
	333	if (selector >= 8)
70b4e786	334	volt = 2700000 + rdev->desc->uV_step * (selector - 8);
9447f35a	335	else
70b4e786	336	volt = rdev->desc->min_uV + rdev->desc->uV_step * selector;
9447f35a AL	337
9447f35a AL	338	if (volt > info->max_uV)
c1b60873	339	return -EINVAL;
9447f35a AL	340
9447f35a AL	341	return volt;
c1b60873 HZ	342	}
c1b60873 HZ	343
129eef96	344	static struct regulator_ops da903x_regulator_ldo_ops = {
c972a029	345	.set_voltage_sel = da903x_set_ldo_voltage_sel,
9447f35a	346	.get_voltage_sel = da903x_get_voltage_sel,
70b4e786	347	.list_voltage = regulator_list_voltage_linear,
c972a029	348	.map_voltage = regulator_map_voltage_linear,
129eef96 EM	349	.enable = da903x_enable,
	350	.disable = da903x_disable,
	351	.is_enabled = da903x_is_enabled,
	352	};
	353
	354	/* NOTE: this is dedicated for the insane DA9030 LDO14 */
	355	static struct regulator_ops da9030_regulator_ldo14_ops = {
c972a029	356	.set_voltage_sel = da9030_set_ldo14_voltage_sel,
9447f35a	357	.get_voltage_sel = da9030_get_ldo14_voltage_sel,
d4eb56a1	358	.list_voltage = da9030_list_ldo14_voltage,
c972a029	359	.map_voltage = da9030_map_ldo14_voltage,
129eef96 EM	360	.enable = da903x_enable,
	361	.disable = da903x_disable,
	362	.is_enabled = da903x_is_enabled,
	363	};
	364
	365	/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
	366	static struct regulator_ops da9030_regulator_ldo1_15_ops = {
c972a029	367	.set_voltage_sel = da9030_set_ldo1_15_voltage_sel,
9447f35a	368	.get_voltage_sel = da903x_get_voltage_sel,
70b4e786	369	.list_voltage = regulator_list_voltage_linear,
c972a029	370	.map_voltage = regulator_map_voltage_linear,
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 = {
c972a029	377	.set_voltage_sel = da9034_set_dvc_voltage_sel,
9447f35a	378	.get_voltage_sel = da903x_get_voltage_sel,
70b4e786	379	.list_voltage = regulator_list_voltage_linear,
c972a029	380	.map_voltage = regulator_map_voltage_linear,
129eef96 EM	381	.enable = da903x_enable,
	382	.disable = da903x_disable,
	383	.is_enabled = da903x_is_enabled,
	384	};
	385
	386	/* NOTE: this is dedicated for the insane LDO12 */
	387	static struct regulator_ops da9034_regulator_ldo12_ops = {
c972a029	388	.set_voltage_sel = da9034_set_ldo12_voltage_sel,
9447f35a	389	.get_voltage_sel = da9034_get_ldo12_voltage_sel,
c1b60873	390	.list_voltage = da9034_list_ldo12_voltage,
c972a029	391	.map_voltage = da9034_map_ldo12_voltage,
129eef96 EM	392	.enable = da903x_enable,
	393	.disable = da903x_disable,
	394	.is_enabled = da903x_is_enabled,
	395	};
	396
	397	#define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	398	{ \
	399	.desc = { \
	400	.name = "LDO" #_id, \
	401	.ops = &da903x_regulator_ldo_ops, \
	402	.type = REGULATOR_VOLTAGE, \
	403	.id = _pmic##_ID_LDO##_id, \
c1b60873	404	.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
129eef96	405	.owner = THIS_MODULE, \
70b4e786 AL	406	.min_uV = (min) * 1000, \
70b4e786 AL	407	.uV_step = (step) * 1000, \
129eef96	408	}, \
129eef96	409	.max_uV = (max) * 1000, \
129eef96 EM	410	.vol_reg = _pmic##_##vreg, \
	411	.vol_shift = (shift), \
	412	.vol_nbits = (nbits), \
	413	.enable_reg = _pmic##_##ereg, \
	414	.enable_bit = (ebit), \
	415	}
	416
c6db1828	417	#define DA903x_DVC(_pmic, _id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
fc4f42e7 HZ	418	{ \
	419	.desc = { \
	420	.name = #_id, \
	421	.ops = &da9034_regulator_dvc_ops, \
	422	.type = REGULATOR_VOLTAGE, \
c6db1828	423	.id = _pmic##_ID_##_id, \
c1b60873	424	.n_voltages = (step) ? ((max - min) / step + 1) : 1, \
fc4f42e7	425	.owner = THIS_MODULE, \
70b4e786 AL	426	.min_uV = (min) * 1000, \
70b4e786 AL	427	.uV_step = (step) * 1000, \
fc4f42e7	428	}, \
fc4f42e7	429	.max_uV = (max) * 1000, \
c6db1828	430	.vol_reg = _pmic##_##vreg, \
0198d116 HZ	431	.vol_shift = (0), \
0198d116 HZ	432	.vol_nbits = (nbits), \
c6db1828	433	.update_reg = _pmic##_##ureg, \
0198d116	434	.update_bit = (ubit), \
c6db1828	435	.enable_reg = _pmic##_##ereg, \
0198d116 HZ	436	.enable_bit = (ebit), \
	437	}
	438
129eef96 EM	439	#define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	440	DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
	441
	442	#define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
	443	DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
	444
c6db1828 MR	445	#define DA9030_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	446	DA903x_DVC(DA9030, _id, min, max, step, vreg, nbits, ureg, ubit, \
	447	ereg, ebit)
	448
	449	#define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	450	DA903x_DVC(DA9034, _id, min, max, step, vreg, nbits, ureg, ubit, \
	451	ereg, ebit)
	452
	453	#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
	454	DA903x_DVC(DA9035, _id, min, max, step, vreg, nbits, ureg, ubit, \
	455	ereg, ebit)
	456
129eef96 EM	457	static struct da903x_regulator_info da903x_regulator_info[] = {
129eef96 EM	458	/* DA9030 */
fc4f42e7 HZ	459	DA9030_DVC(BUCK2, 850, 1625, 25, BUCK2DVM1, 5, BUCK2DVM1, 7, RCTL11, 0),
fc4f42e7 HZ	460
129eef96 EM	461	DA9030_LDO( 1, 1200, 3200, 100, LDO1, 0, 5, RCTL12, 1),
	462	DA9030_LDO( 2, 1800, 3200, 100, LDO23, 0, 4, RCTL12, 2),
	463	DA9030_LDO( 3, 1800, 3200, 100, LDO23, 4, 4, RCTL12, 3),
	464	DA9030_LDO( 4, 1800, 3200, 100, LDO45, 0, 4, RCTL12, 4),
	465	DA9030_LDO( 5, 1800, 3200, 100, LDO45, 4, 4, RCTL12, 5),
	466	DA9030_LDO( 6, 1800, 3200, 100, LDO6, 0, 4, RCTL12, 6),
	467	DA9030_LDO( 7, 1800, 3200, 100, LDO78, 0, 4, RCTL12, 7),
	468	DA9030_LDO( 8, 1800, 3200, 100, LDO78, 4, 4, RCTL22, 0),
	469	DA9030_LDO( 9, 1800, 3200, 100, LDO912, 0, 4, RCTL22, 1),
	470	DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2),
	471	DA9030_LDO(11, 1800, 3200, 100, LDO1011, 4, 4, RCTL22, 3),
	472	DA9030_LDO(12, 1800, 3200, 100, LDO912, 4, 4, RCTL22, 4),
	473	DA9030_LDO(14, 2760, 2940, 30, LDO1416, 0, 3, RCTL11, 4),
	474	DA9030_LDO(15, 1100, 2650, 50, LDO15, 0, 5, RCTL11, 5),
	475	DA9030_LDO(16, 1100, 2650, 50, LDO1416, 3, 5, RCTL11, 6),
	476	DA9030_LDO(17, 1800, 3200, 100, LDO17, 0, 4, RCTL11, 7),
	477	DA9030_LDO(18, 1800, 3200, 100, LDO1819, 0, 4, RCTL21, 2),
	478	DA9030_LDO(19, 1800, 3200, 100, LDO1819, 4, 4, RCTL21, 1),
	479	DA9030_LDO(13, 2100, 2100, 0, INVAL, 0, 0, RCTL11, 3), /* fixed @2.1V */
	480
	481	/* DA9034 */
e88267e1 HZ	482	DA9034_DVC(BUCK1, 725, 1500, 25, ADTV2, 5, VCC1, 0, OVER1, 0),
	483	DA9034_DVC(BUCK2, 725, 1500, 25, CDTV2, 5, VCC1, 2, OVER1, 1),
	484	DA9034_DVC(LDO2, 725, 1500, 25, SDTV2, 5, VCC1, 4, OVER1, 2),
129eef96 EM	485	DA9034_DVC(LDO1, 1700, 2075, 25, MDTV1, 4, VCC1, 6, OVER3, 4),
	486
	487	DA9034_LDO( 3, 1800, 3300, 100, LDO643, 0, 4, OVER3, 5),
	488	DA9034_LDO( 4, 1800, 2900,1100, LDO643, 4, 1, OVER3, 6),
	489	DA9034_LDO( 6, 2500, 2850, 50, LDO643, 5, 3, OVER2, 0),
	490	DA9034_LDO( 7, 2700, 3050, 50, LDO987, 0, 3, OVER2, 1),
	491	DA9034_LDO( 8, 2700, 2850, 50, LDO987, 3, 2, OVER2, 2),
	492	DA9034_LDO( 9, 2700, 3050, 50, LDO987, 5, 3, OVER2, 3),
	493	DA9034_LDO(10, 2700, 3050, 50, LDO1110, 0, 3, OVER2, 4),
	494	DA9034_LDO(11, 1800, 3300, 100, LDO1110, 4, 4, OVER2, 5),
	495	DA9034_LDO(12, 1700, 3050, 50, LDO1312, 0, 4, OVER3, 6),
	496	DA9034_LDO(13, 1800, 3300, 100, LDO1312, 4, 4, OVER2, 7),
	497	DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0),
	498	DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1),
	499	DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */
0198d116 HZ	500
	501	/* DA9035 */
	502	DA9035_DVC(BUCK3, 1800, 2200, 100, 3DTV1, 3, VCC2, 0, OVER3, 3),
129eef96 EM	503	};
	504
	505	static inline struct da903x_regulator_info *find_regulator_info(int id)
	506	{
	507	struct da903x_regulator_info *ri;
	508	int i;
	509
	510	for (i = 0; i < ARRAY_SIZE(da903x_regulator_info); i++) {
	511	ri = &da903x_regulator_info[i];
	512	if (ri->desc.id == id)
	513	return ri;
	514	}
	515	return NULL;
	516	}
	517
	518	static int __devinit da903x_regulator_probe(struct platform_device *pdev)
	519	{
	520	struct da903x_regulator_info *ri = NULL;
	521	struct regulator_dev *rdev;
c172708d	522	struct regulator_config config = { };
129eef96 EM	523
	524	ri = find_regulator_info(pdev->id);
	525	if (ri == NULL) {
	526	dev_err(&pdev->dev, "invalid regulator ID specified\n");
	527	return -EINVAL;
	528	}
	529
	530	/* Workaround for the weird LDO12 voltage setting */
c1b60873	531	if (ri->desc.id == DA9034_ID_LDO12) {
129eef96	532	ri->desc.ops = &da9034_regulator_ldo12_ops;
9447f35a	533	ri->desc.n_voltages = 16;
c1b60873	534	}
129eef96 EM	535
	536	if (ri->desc.id == DA9030_ID_LDO14)
	537	ri->desc.ops = &da9030_regulator_ldo14_ops;
	538
	539	if (ri->desc.id == DA9030_ID_LDO1 \|\| ri->desc.id == DA9030_ID_LDO15)
	540	ri->desc.ops = &da9030_regulator_ldo1_15_ops;
	541
c172708d	542	config.dev = &pdev->dev;
fe53d18d	543	config.init_data = pdev->dev.platform_data;
c172708d MB	544	config.driver_data = ri;
	545
	546	rdev = regulator_register(&ri->desc, &config);
129eef96 EM	547	if (IS_ERR(rdev)) {
	548	dev_err(&pdev->dev, "failed to register regulator %s\n",
	549	ri->desc.name);
	550	return PTR_ERR(rdev);
	551	}
	552
	553	platform_set_drvdata(pdev, rdev);
	554	return 0;
	555	}
	556
	557	static int __devexit da903x_regulator_remove(struct platform_device *pdev)
	558	{
	559	struct regulator_dev *rdev = platform_get_drvdata(pdev);
	560
	561	regulator_unregister(rdev);
	562	return 0;
	563	}
	564
	565	static struct platform_driver da903x_regulator_driver = {
	566	.driver = {
	567	.name = "da903x-regulator",
	568	.owner = THIS_MODULE,
	569	},
	570	.probe = da903x_regulator_probe,
5b4662f0	571	.remove = __devexit_p(da903x_regulator_remove),
129eef96 EM	572	};
	573
	574	static int __init da903x_regulator_init(void)
	575	{
	576	return platform_driver_register(&da903x_regulator_driver);
	577	}
5a1b22be	578	subsys_initcall(da903x_regulator_init);
129eef96 EM	579
	580	static void __exit da903x_regulator_exit(void)
	581	{
	582	platform_driver_unregister(&da903x_regulator_driver);
	583	}
	584	module_exit(da903x_regulator_exit);
	585
	586	MODULE_LICENSE("GPL");
	587	MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
	588	"Mike Rapoport <mike@compulab.co.il>");
	589	MODULE_DESCRIPTION("Regulator Driver for Dialog Semiconductor DA903X PMIC");
	590	MODULE_ALIAS("platform:da903x-regulator");