[net-next-2.6.git] / drivers / regulator / 88pm8607.c

/*
 * Regulators driver for Marvell 88PM8607
 *
 * Copyright (C) 2009 Marvell International Ltd.
 * 	Haojian Zhuang <haojian.zhuang@marvell.com>
 *
 * 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/i2c.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/88pm860x.h>

struct pm8607_regulator_info {
	struct regulator_desc	desc;
	struct pm860x_chip	*chip;
	struct regulator_dev	*regulator;
	struct i2c_client	*i2c;

	unsigned int	*vol_table;
	unsigned int	*vol_suspend;

	int	vol_reg;
	int	vol_shift;
	int	vol_nbits;
	int	update_reg;
	int	update_bit;
	int	enable_reg;
	int	enable_bit;
	int	slope_double;
};

static const unsigned int BUCK1_table[] = {
	 725000,  750000,  775000,  800000,  825000,  850000,  875000,  900000,
	 925000,  950000,  975000, 1000000, 1025000, 1050000, 1075000, 1100000,
	1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
	1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
	      0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
	 200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
	 400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
	 600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
};

static const unsigned int BUCK1_suspend_table[] = {
	      0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
	 200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
	 400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
	 600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
	 800000,  825000,  850000,  875000,  900000,  925000,  950000,  975000,
	1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
	1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
	1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
};

static const unsigned int BUCK2_table[] = {
	      0,   50000,  100000,  150000,  200000,  250000,  300000,  350000,
	 400000,  450000,  500000,  550000,  600000,  650000,  700000,  750000,
	 800000,  850000,  900000,  950000, 1000000, 1050000, 1100000, 1150000,
	1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
	1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
	2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
	2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
	2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
};

static const unsigned int BUCK2_suspend_table[] = {
	      0,   50000,  100000,  150000,  200000,  250000,  300000,  350000,
	 400000,  450000,  500000,  550000,  600000,  650000,  700000,  750000,
	 800000,  850000,  900000,  950000, 1000000, 1050000, 1100000, 1150000,
	1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
	1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
	2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
	2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
	2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
};

static const unsigned int BUCK3_table[] = {
              0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
	 200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
	 400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
	 600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
	 800000,  825000,  850000,  875000,  900000,  925000,  950000,  975000,
	1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
	1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
	1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
};

static const unsigned int BUCK3_suspend_table[] = {
              0,   25000,   50000,   75000,  100000,  125000,  150000,  175000,
	 200000,  225000,  250000,  275000,  300000,  325000,  350000,  375000,
	 400000,  425000,  450000,  475000,  500000,  525000,  550000,  575000,
	 600000,  625000,  650000,  675000,  700000,  725000,  750000,  775000,
	 800000,  825000,  850000,  875000,  900000,  925000,  950000,  975000,
	1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
	1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
	1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
};

static const unsigned int LDO1_table[] = {
	1800000, 1200000, 2800000, 0,
};

static const unsigned int LDO1_suspend_table[] = {
	1800000, 1200000, 0, 0,
};

static const unsigned int LDO2_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
};

static const unsigned int LDO2_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO3_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
};

static const unsigned int LDO3_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO4_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
};

static const unsigned int LDO4_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
};

static const unsigned int LDO5_table[] = {
	2900000, 3000000, 3100000, 3300000,
};

static const unsigned int LDO5_suspend_table[] = {
	2900000, 0, 0, 0,
};

static const unsigned int LDO6_table[] = {
	1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
};

static const unsigned int LDO6_suspend_table[] = {
	1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
};

static const unsigned int LDO7_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO7_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO8_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO8_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO9_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
};

static const unsigned int LDO9_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
};

static const unsigned int LDO10_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};

static const unsigned int LDO10_suspend_table[] = {
	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};

static const unsigned int LDO12_table[] = {
	1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};

static const unsigned int LDO12_suspend_table[] = {
	1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
};

static const unsigned int LDO13_table[] = {
	1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0, 0,
};

static const unsigned int LDO13_suspend_table[] = {
	0,
};

static const unsigned int LDO14_table[] = {
	1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
};

static const unsigned int LDO14_suspend_table[] = {
	1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
};

static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
	int ret = -EINVAL;

	if (info->vol_table && (index < (1 << info->vol_nbits))) {
		ret = info->vol_table[index];
		if (info->slope_double)
			ret <<= 1;
	}
	return ret;
}

static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
	int i, ret = -ENOENT;

	if (info->slope_double) {
		min_uV = min_uV >> 1;
		max_uV = max_uV >> 1;
	}
	if (info->vol_table) {
		for (i = 0; i < (1 << info->vol_nbits); i++) {
			if (!info->vol_table[i])
				break;
			if ((min_uV <= info->vol_table[i])
				&& (max_uV >= info->vol_table[i])) {
				ret = i;
				break;
			}
		}
	}
	if (ret < 0)
		pr_err("invalid voltage range (%d %d) uV\n", min_uV, max_uV);
	return ret;
}

static int pm8607_set_voltage(struct regulator_dev *rdev,
			      int min_uV, int max_uV)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
	uint8_t val, mask;
	int ret;

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

	ret = choose_voltage(rdev, min_uV, max_uV);
	if (ret < 0)
		return -EINVAL;
	val = (uint8_t)(ret << info->vol_shift);
	mask = ((1 << info->vol_nbits) - 1)  << info->vol_shift;

	ret = pm860x_set_bits(info->i2c, info->vol_reg, mask, val);
	if (ret)
		return ret;
	switch (info->desc.id) {
	case PM8607_ID_BUCK1:
	case PM8607_ID_BUCK3:
		ret = pm860x_set_bits(info->i2c, info->update_reg,
				      1 << info->update_bit,
				      1 << info->update_bit);
		break;
	}
	return ret;
}

static int pm8607_get_voltage(struct regulator_dev *rdev)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
	uint8_t val, mask;
	int ret;

	ret = pm860x_reg_read(info->i2c, info->vol_reg);
	if (ret < 0)
		return ret;

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

	return pm8607_list_voltage(rdev, val);
}

static int pm8607_enable(struct regulator_dev *rdev)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);

	return pm860x_set_bits(info->i2c, info->enable_reg,
			       1 << info->enable_bit,
			       1 << info->enable_bit);
}

static int pm8607_disable(struct regulator_dev *rdev)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);

	return pm860x_set_bits(info->i2c, info->enable_reg,
			       1 << info->enable_bit, 0);
}

static int pm8607_is_enabled(struct regulator_dev *rdev)
{
	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
	int ret;

	ret = pm860x_reg_read(info->i2c, info->enable_reg);
	if (ret < 0)
		return ret;

	return !!((unsigned char)ret & (1 << info->enable_bit));
}

static struct regulator_ops pm8607_regulator_ops = {
	.set_voltage	= pm8607_set_voltage,
	.get_voltage	= pm8607_get_voltage,
	.enable		= pm8607_enable,
	.disable	= pm8607_disable,
	.is_enabled	= pm8607_is_enabled,
};

#define PM8607_DVC(vreg, nbits, ureg, ubit, ereg, ebit)			\
{									\
	.desc	= {							\
		.name	= #vreg,					\
		.ops	= &pm8607_regulator_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= PM8607_ID_##vreg,				\
		.owner	= THIS_MODULE,					\
	},								\
	.vol_reg	= PM8607_##vreg,				\
	.vol_shift	= (0),						\
	.vol_nbits	= (nbits),					\
	.update_reg	= PM8607_##ureg,				\
	.update_bit	= (ubit),					\
	.enable_reg	= PM8607_##ereg,				\
	.enable_bit	= (ebit),					\
	.slope_double	= (0),						\
	.vol_table	= (unsigned int *)&vreg##_table,		\
	.vol_suspend	= (unsigned int *)&vreg##_suspend_table,	\
}

#define PM8607_LDO(_id, vreg, shift, nbits, ereg, ebit)			\
{									\
	.desc	= {							\
		.name	= "LDO" #_id,					\
		.ops	= &pm8607_regulator_ops,			\
		.type	= REGULATOR_VOLTAGE,				\
		.id	= PM8607_ID_LDO##_id,				\
		.owner	= THIS_MODULE,					\
	},								\
	.vol_reg	= PM8607_##vreg,				\
	.vol_shift	= (shift),					\
	.vol_nbits	= (nbits),					\
	.enable_reg	= PM8607_##ereg,				\
	.enable_bit	= (ebit),					\
	.slope_double	= (0),						\
	.vol_table	= (unsigned int *)&LDO##_id##_table,		\
	.vol_suspend	= (unsigned int *)&LDO##_id##_suspend_table,	\
}

static struct pm8607_regulator_info pm8607_regulator_info[] = {
	PM8607_DVC(BUCK1, 6, GO, 0, SUPPLIES_EN11, 0),
	PM8607_DVC(BUCK2, 6, GO, 1, SUPPLIES_EN11, 1),
	PM8607_DVC(BUCK3, 6, GO, 2, SUPPLIES_EN11, 2),

	PM8607_LDO( 1,         LDO1, 0, 2, SUPPLIES_EN11, 3),
	PM8607_LDO( 2,         LDO2, 0, 3, SUPPLIES_EN11, 4),
	PM8607_LDO( 3,         LDO3, 0, 3, SUPPLIES_EN11, 5),
	PM8607_LDO( 4,         LDO4, 0, 3, SUPPLIES_EN11, 6),
	PM8607_LDO( 5,         LDO5, 0, 2, SUPPLIES_EN11, 7),
	PM8607_LDO( 6,         LDO6, 0, 3, SUPPLIES_EN12, 0),
	PM8607_LDO( 7,         LDO7, 0, 3, SUPPLIES_EN12, 1),
	PM8607_LDO( 8,         LDO8, 0, 3, SUPPLIES_EN12, 2),
	PM8607_LDO( 9,         LDO9, 0, 3, SUPPLIES_EN12, 3),
	PM8607_LDO(10,        LDO10, 0, 3, SUPPLIES_EN12, 4),
	PM8607_LDO(12,        LDO12, 0, 4, SUPPLIES_EN12, 5),
	PM8607_LDO(13, VIBRATOR_SET, 1, 3,  VIBRATOR_SET, 0),
	PM8607_LDO(14,        LDO14, 0, 4, SUPPLIES_EN12, 6),
};

static inline struct pm8607_regulator_info *find_regulator_info(int id)
{
	struct pm8607_regulator_info *info;
	int i;

	for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
		info = &pm8607_regulator_info[i];
		if (info->desc.id == id)
			return info;
	}
	return NULL;
}

static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
{
	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
	struct pm860x_platform_data *pdata = chip->dev->platform_data;
	struct pm8607_regulator_info *info = NULL;

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

	info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
	info->chip = chip;

	info->regulator = regulator_register(&info->desc, &pdev->dev,
					     pdata->regulator[pdev->id], info);
	if (IS_ERR(info->regulator)) {
		dev_err(&pdev->dev, "failed to register regulator %s\n",
			info->desc.name);
		return PTR_ERR(info->regulator);
	}

	/* check DVC ramp slope double */
	if (info->desc.id == PM8607_ID_BUCK3)
		if (info->chip->buck3_double)
			info->slope_double = 1;

	platform_set_drvdata(pdev, info);
	return 0;
}

static int __devexit pm8607_regulator_remove(struct platform_device *pdev)
{
	struct pm8607_regulator_info *info = platform_get_drvdata(pdev);

	platform_set_drvdata(pdev, NULL);
	regulator_unregister(info->regulator);
	return 0;
}

static struct platform_driver pm8607_regulator_driver = {
	.driver		= {
		.name	= "88pm860x-regulator",
		.owner	= THIS_MODULE,
	},
	.probe		= pm8607_regulator_probe,
	.remove		= __devexit_p(pm8607_regulator_remove),
};

static int __init pm8607_regulator_init(void)
{
	return platform_driver_register(&pm8607_regulator_driver);
}
subsys_initcall(pm8607_regulator_init);

static void __exit pm8607_regulator_exit(void)
{
	platform_driver_unregister(&pm8607_regulator_driver);
}
module_exit(pm8607_regulator_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
MODULE_ALIAS("platform:88pm8607-regulator");
Commit	Line	Data
be0e2d3e HZ	1	/*
	2	* Regulators driver for Marvell 88PM8607
	3	*
	4	* Copyright (C) 2009 Marvell International Ltd.
	5	* Haojian Zhuang <haojian.zhuang@marvell.com>
	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	#include <linux/kernel.h>
	12	#include <linux/init.h>
	13	#include <linux/err.h>
53dbab7a	14	#include <linux/i2c.h>
be0e2d3e HZ	15	#include <linux/platform_device.h>
	16	#include <linux/regulator/driver.h>
	17	#include <linux/regulator/machine.h>
53dbab7a	18	#include <linux/mfd/88pm860x.h>
be0e2d3e HZ	19
	20	struct pm8607_regulator_info {
	21	struct regulator_desc desc;
53dbab7a	22	struct pm860x_chip *chip;
be0e2d3e	23	struct regulator_dev *regulator;
53dbab7a	24	struct i2c_client *i2c;
be0e2d3e	25
9f79e9db HZ	26	unsigned int *vol_table;
	27	unsigned int *vol_suspend;
	28
be0e2d3e HZ	29	int vol_reg;
	30	int vol_shift;
	31	int vol_nbits;
	32	int update_reg;
	33	int update_bit;
	34	int enable_reg;
	35	int enable_bit;
	36	int slope_double;
	37	};
	38
9f79e9db HZ	39	static const unsigned int BUCK1_table[] = {
	40	725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
	41	925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
	42	1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
	43	1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
	44	0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
	45	200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
	46	400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
	47	600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
	48	};
be0e2d3e	49
9f79e9db HZ	50	static const unsigned int BUCK1_suspend_table[] = {
	51	0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
	52	200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
	53	400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
	54	600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
	55	800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
	56	1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
	57	1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
	58	1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
	59	};
	60
	61	static const unsigned int BUCK2_table[] = {
	62	0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
	63	400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
	64	800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
	65	1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
	66	1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
	67	2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
	68	2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
	69	2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
	70	};
	71
	72	static const unsigned int BUCK2_suspend_table[] = {
	73	0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
	74	400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
	75	800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
	76	1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
	77	1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
	78	2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
	79	2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
	80	2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
	81	};
	82
	83	static const unsigned int BUCK3_table[] = {
	84	0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
	85	200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
	86	400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
	87	600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
	88	800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
	89	1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
	90	1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
	91	1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
	92	};
	93
	94	static const unsigned int BUCK3_suspend_table[] = {
	95	0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
	96	200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
	97	400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
	98	600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
	99	800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
	100	1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
	101	1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
	102	1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
	103	};
	104
	105	static const unsigned int LDO1_table[] = {
	106	1800000, 1200000, 2800000, 0,
	107	};
	108
	109	static const unsigned int LDO1_suspend_table[] = {
	110	1800000, 1200000, 0, 0,
	111	};
	112
	113	static const unsigned int LDO2_table[] = {
114	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
115	};
116
117	static const unsigned int LDO2_suspend_table[] = {
118	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
119	};
120
121	static const unsigned int LDO3_table[] = {
122	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
123	};
124
125	static const unsigned int LDO3_suspend_table[] = {
126	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
127	};
128
129	static const unsigned int LDO4_table[] = {
130	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
131	};
132
133	static const unsigned int LDO4_suspend_table[] = {
134	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
135	};
136
137	static const unsigned int LDO5_table[] = {
138	2900000, 3000000, 3100000, 3300000,
139	};
140
141	static const unsigned int LDO5_suspend_table[] = {
142	2900000, 0, 0, 0,
143	};
144
145	static const unsigned int LDO6_table[] = {
146	1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
147	};
148
149	static const unsigned int LDO6_suspend_table[] = {
150	1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
151	};
152
153	static const unsigned int LDO7_table[] = {
154	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
155	};
156
157	static const unsigned int LDO7_suspend_table[] = {
158	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
159	};
160
161	static const unsigned int LDO8_table[] = {
162	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
163	};
164
165	static const unsigned int LDO8_suspend_table[] = {
166	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
167	};
168
169	static const unsigned int LDO9_table[] = {
170	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
171	};
172
173	static const unsigned int LDO9_suspend_table[] = {
174	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
175	};
176
177	static const unsigned int LDO10_table[] = {
178	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
179	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
180	};
181
182	static const unsigned int LDO10_suspend_table[] = {
183	1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
184	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
185	};
186
187	static const unsigned int LDO12_table[] = {
188	1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
189	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
190	};
191
192	static const unsigned int LDO12_suspend_table[] = {
193	1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
194	1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
195	};
196
197	static const unsigned int LDO13_table[] = {
198	1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0, 0,
199	};
200
201	static const unsigned int LDO13_suspend_table[] = {
202	0,
203	};
204
205	static const unsigned int LDO14_table[] = {
206	1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
207	};
208
209	static const unsigned int LDO14_suspend_table[] = {
210	1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
211	};
be0e2d3e HZ	212
	213	static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
	214	{
	215	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
be0e2d3e HZ	216	int ret = -EINVAL;
be0e2d3e HZ	217
d06563cb	218	if (info->vol_table && (index < (1 << info->vol_nbits))) {
9f79e9db	219	ret = info->vol_table[index];
be0e2d3e HZ	220	if (info->slope_double)
be0e2d3e HZ	221	ret <<= 1;
be0e2d3e HZ	222	}
	223	return ret;
	224	}
	225
	226	static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
	227	{
	228	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
9f79e9db	229	int i, ret = -ENOENT;
be0e2d3e	230
9f79e9db HZ	231	if (info->slope_double) {
	232	min_uV = min_uV >> 1;
	233	max_uV = max_uV >> 1;
be0e2d3e	234	}
9f79e9db	235	if (info->vol_table) {
d06563cb	236	for (i = 0; i < (1 << info->vol_nbits); i++) {
9f79e9db HZ	237	if (!info->vol_table[i])
	238	break;
	239	if ((min_uV <= info->vol_table[i])
	240	&& (max_uV >= info->vol_table[i])) {
	241	ret = i;
	242	break;
	243	}
be0e2d3e	244	}
9f79e9db HZ	245	}
	246	if (ret < 0)
	247	pr_err("invalid voltage range (%d %d) uV\n", min_uV, max_uV);
	248	return ret;
be0e2d3e HZ	249	}
	250
	251	static int pm8607_set_voltage(struct regulator_dev *rdev,
	252	int min_uV, int max_uV)
	253	{
	254	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
be0e2d3e HZ	255	uint8_t val, mask;
	256	int ret;
	257
9f79e9db	258	if (min_uV > max_uV) {
be0e2d3e HZ	259	pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
	260	return -EINVAL;
	261	}
	262
	263	ret = choose_voltage(rdev, min_uV, max_uV);
	264	if (ret < 0)
	265	return -EINVAL;
	266	val = (uint8_t)(ret << info->vol_shift);
	267	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	268
53dbab7a	269	ret = pm860x_set_bits(info->i2c, info->vol_reg, mask, val);
be0e2d3e HZ	270	if (ret)
	271	return ret;
	272	switch (info->desc.id) {
	273	case PM8607_ID_BUCK1:
	274	case PM8607_ID_BUCK3:
53dbab7a	275	ret = pm860x_set_bits(info->i2c, info->update_reg,
be0e2d3e HZ	276	1 << info->update_bit,
	277	1 << info->update_bit);
	278	break;
	279	}
	280	return ret;
	281	}
	282
	283	static int pm8607_get_voltage(struct regulator_dev *rdev)
	284	{
	285	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
be0e2d3e HZ	286	uint8_t val, mask;
	287	int ret;
	288
53dbab7a	289	ret = pm860x_reg_read(info->i2c, info->vol_reg);
be0e2d3e HZ	290	if (ret < 0)
	291	return ret;
	292
	293	mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
	294	val = ((unsigned char)ret & mask) >> info->vol_shift;
	295
	296	return pm8607_list_voltage(rdev, val);
	297	}
	298
	299	static int pm8607_enable(struct regulator_dev *rdev)
	300	{
	301	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
be0e2d3e	302
53dbab7a	303	return pm860x_set_bits(info->i2c, info->enable_reg,
be0e2d3e HZ	304	1 << info->enable_bit,
	305	1 << info->enable_bit);
	306	}
	307
	308	static int pm8607_disable(struct regulator_dev *rdev)
	309	{
	310	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
be0e2d3e	311
53dbab7a	312	return pm860x_set_bits(info->i2c, info->enable_reg,
be0e2d3e HZ	313	1 << info->enable_bit, 0);
	314	}
	315
	316	static int pm8607_is_enabled(struct regulator_dev *rdev)
	317	{
	318	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
be0e2d3e HZ	319	int ret;
be0e2d3e HZ	320
53dbab7a	321	ret = pm860x_reg_read(info->i2c, info->enable_reg);
be0e2d3e HZ	322	if (ret < 0)
	323	return ret;
	324
	325	return !!((unsigned char)ret & (1 << info->enable_bit));
	326	}
	327
	328	static struct regulator_ops pm8607_regulator_ops = {
	329	.set_voltage = pm8607_set_voltage,
	330	.get_voltage = pm8607_get_voltage,
	331	.enable = pm8607_enable,
	332	.disable = pm8607_disable,
	333	.is_enabled = pm8607_is_enabled,
	334	};
	335
9f79e9db	336	#define PM8607_DVC(vreg, nbits, ureg, ubit, ereg, ebit) \
be0e2d3e HZ	337	{ \
be0e2d3e HZ	338	.desc = { \
9f79e9db	339	.name = #vreg, \
be0e2d3e HZ	340	.ops = &pm8607_regulator_ops, \
be0e2d3e HZ	341	.type = REGULATOR_VOLTAGE, \
9f79e9db	342	.id = PM8607_ID_##vreg, \
be0e2d3e HZ	343	.owner = THIS_MODULE, \
be0e2d3e HZ	344	}, \
be0e2d3e HZ	345	.vol_reg = PM8607_##vreg, \
	346	.vol_shift = (0), \
	347	.vol_nbits = (nbits), \
	348	.update_reg = PM8607_##ureg, \
	349	.update_bit = (ubit), \
	350	.enable_reg = PM8607_##ereg, \
	351	.enable_bit = (ebit), \
	352	.slope_double = (0), \
9f79e9db HZ	353	.vol_table = (unsigned int *)&vreg##_table, \
9f79e9db HZ	354	.vol_suspend = (unsigned int *)&vreg##_suspend_table, \
be0e2d3e HZ	355	}
be0e2d3e HZ	356
9f79e9db	357	#define PM8607_LDO(_id, vreg, shift, nbits, ereg, ebit) \
be0e2d3e HZ	358	{ \
	359	.desc = { \
	360	.name = "LDO" #_id, \
	361	.ops = &pm8607_regulator_ops, \
	362	.type = REGULATOR_VOLTAGE, \
	363	.id = PM8607_ID_LDO##_id, \
	364	.owner = THIS_MODULE, \
	365	}, \
be0e2d3e HZ	366	.vol_reg = PM8607_##vreg, \
	367	.vol_shift = (shift), \
	368	.vol_nbits = (nbits), \
	369	.enable_reg = PM8607_##ereg, \
	370	.enable_bit = (ebit), \
	371	.slope_double = (0), \
9f79e9db HZ	372	.vol_table = (unsigned int *)&LDO##_id##_table, \
9f79e9db HZ	373	.vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
be0e2d3e HZ	374	}
	375
	376	static struct pm8607_regulator_info pm8607_regulator_info[] = {
9f79e9db HZ	377	PM8607_DVC(BUCK1, 6, GO, 0, SUPPLIES_EN11, 0),
	378	PM8607_DVC(BUCK2, 6, GO, 1, SUPPLIES_EN11, 1),
	379	PM8607_DVC(BUCK3, 6, GO, 2, SUPPLIES_EN11, 2),
	380
	381	PM8607_LDO( 1, LDO1, 0, 2, SUPPLIES_EN11, 3),
	382	PM8607_LDO( 2, LDO2, 0, 3, SUPPLIES_EN11, 4),
	383	PM8607_LDO( 3, LDO3, 0, 3, SUPPLIES_EN11, 5),
	384	PM8607_LDO( 4, LDO4, 0, 3, SUPPLIES_EN11, 6),
	385	PM8607_LDO( 5, LDO5, 0, 2, SUPPLIES_EN11, 7),
	386	PM8607_LDO( 6, LDO6, 0, 3, SUPPLIES_EN12, 0),
	387	PM8607_LDO( 7, LDO7, 0, 3, SUPPLIES_EN12, 1),
	388	PM8607_LDO( 8, LDO8, 0, 3, SUPPLIES_EN12, 2),
	389	PM8607_LDO( 9, LDO9, 0, 3, SUPPLIES_EN12, 3),
	390	PM8607_LDO(10, LDO10, 0, 3, SUPPLIES_EN12, 4),
	391	PM8607_LDO(12, LDO12, 0, 4, SUPPLIES_EN12, 5),
	392	PM8607_LDO(13, VIBRATOR_SET, 1, 3, VIBRATOR_SET, 0),
	393	PM8607_LDO(14, LDO14, 0, 4, SUPPLIES_EN12, 6),
be0e2d3e HZ	394	};
	395
	396	static inline struct pm8607_regulator_info *find_regulator_info(int id)
	397	{
	398	struct pm8607_regulator_info *info;
	399	int i;
	400
	401	for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
	402	info = &pm8607_regulator_info[i];
	403	if (info->desc.id == id)
	404	return info;
	405	}
	406	return NULL;
	407	}
	408
	409	static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
	410	{
53dbab7a HZ	411	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
53dbab7a HZ	412	struct pm860x_platform_data *pdata = chip->dev->platform_data;
be0e2d3e HZ	413	struct pm8607_regulator_info *info = NULL;
	414
	415	info = find_regulator_info(pdev->id);
	416	if (info == NULL) {
	417	dev_err(&pdev->dev, "invalid regulator ID specified\n");
	418	return -EINVAL;
	419	}
	420
53dbab7a	421	info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
be0e2d3e HZ	422	info->chip = chip;
	423
	424	info->regulator = regulator_register(&info->desc, &pdev->dev,
	425	pdata->regulator[pdev->id], info);
	426	if (IS_ERR(info->regulator)) {
	427	dev_err(&pdev->dev, "failed to register regulator %s\n",
	428	info->desc.name);
	429	return PTR_ERR(info->regulator);
	430	}
	431
	432	/* check DVC ramp slope double */
	433	if (info->desc.id == PM8607_ID_BUCK3)
	434	if (info->chip->buck3_double)
	435	info->slope_double = 1;
	436
	437	platform_set_drvdata(pdev, info);
	438	return 0;
	439	}
	440
	441	static int __devexit pm8607_regulator_remove(struct platform_device *pdev)
	442	{
	443	struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
	444
192bbb95	445	platform_set_drvdata(pdev, NULL);
be0e2d3e HZ	446	regulator_unregister(info->regulator);
	447	return 0;
	448	}
	449
192bbb95 HZ	450	static struct platform_driver pm8607_regulator_driver = {
	451	.driver = {
	452	.name = "88pm860x-regulator",
	453	.owner = THIS_MODULE,
	454	},
	455	.probe = pm8607_regulator_probe,
	456	.remove = __devexit_p(pm8607_regulator_remove),
be0e2d3e HZ	457	};
	458
	459	static int __init pm8607_regulator_init(void)
	460	{
192bbb95	461	return platform_driver_register(&pm8607_regulator_driver);
be0e2d3e HZ	462	}
	463	subsys_initcall(pm8607_regulator_init);
	464
	465	static void __exit pm8607_regulator_exit(void)
	466	{
192bbb95	467	platform_driver_unregister(&pm8607_regulator_driver);
be0e2d3e HZ	468	}
	469	module_exit(pm8607_regulator_exit);
	470
	471	MODULE_LICENSE("GPL");
	472	MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
	473	MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
	474	MODULE_ALIAS("platform:88pm8607-regulator");