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Commit be0e2d3e authored by Haojian Zhuang's avatar Haojian Zhuang Committed by Liam Girdwood
Browse files

regulator: add 88PM8607 PMIC driver 



Hi Liam,

Since Samuel merged a new version of mfd 88pm8607 driver, I format a
new patch on regulator 88pm8607. I paste the new patch in mail. Please
help to review again. And I also attach the mfd driver in mail.

From: Haojian Zhuang <haojian.zhuang@marvell.com>
Date: Thu, 8 Oct 2009 09:36:53 -0400
Subject: [PATCH] regulator: Add 88PM8607 PMIC driver

This patch adds regulator drivers for Marvell 88PM8607 PMIC.
This controller contains 3 DVC and 14 LDO regulators. This controller
uses I2C interface.

Signed-off-by: default avatarHaojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent e24a04c4

drivers/regulator/88pm8607.c

0 → 100644
+684 −0
Original line number Diff line number Diff line 
/*

 * 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/platform_device.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>

#include <linux/mfd/88pm8607.h>



struct pm8607_regulator_info {

	struct regulator_desc	desc;

	struct pm8607_chip	*chip;

	struct regulator_dev	*regulator;



	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;

	int	slope_double;

};



static inline int check_range(struct pm8607_regulator_info *info,

				int min_uV, int max_uV)

{

	if (max_uV < info->min_uV || min_uV > info->max_uV || min_uV > max_uV)

		return -EINVAL;



	return 0;

}



static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)

{

	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);

	uint8_t chip_id = info->chip->chip_id;

	int ret = -EINVAL;



	switch (info->desc.id) {

	case PM8607_ID_BUCK1:

		ret = (index < 0x1d) ? (index * 25000 + 800000) :

			((index < 0x20) ? 1500000 :

			((index < 0x40) ? ((index - 0x20) * 25000) :

			-EINVAL));

		break;

	case PM8607_ID_BUCK3:

		ret = (index < 0x3d) ? (index * 25000) :

			((index < 0x40) ? 1500000 : -EINVAL);

		if (ret < 0)

			break;

		if (info->slope_double)

			ret <<= 1;

		break;

	case PM8607_ID_LDO1:

		ret = (index == 0) ? 1800000 :

			((index == 1) ? 1200000 :

			((index == 2) ? 2800000 : -EINVAL));

		break;

	case PM8607_ID_LDO5:

		ret = (index == 0) ? 2900000 :

			((index == 1) ? 3000000 :

			((index == 2) ? 3100000 : 3300000));

		break;

	case PM8607_ID_LDO7:

	case PM8607_ID_LDO8:

		ret = (index < 3) ? (index * 50000 + 1800000) :

			((index < 8) ? (index * 50000 + 2550000) :

			 -EINVAL);

		break;

	case PM8607_ID_LDO12:

		ret = (index < 2) ? (index * 100000 + 1800000) :

			((index < 7) ? (index * 100000 + 2500000) :

			((index == 7) ? 3300000 : 1200000));

		break;

	case PM8607_ID_LDO2:

	case PM8607_ID_LDO3:

	case PM8607_ID_LDO9:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 8) ? (index * 50000 + 2550000) :

				 -EINVAL);

			break;

		case PM8607_CHIP_B0:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 7) ? (index * 50000 + 2550000) :

				3300000);

			break;

		}

		break;

	case PM8607_ID_LDO4:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 8) ? (index * 50000 + 2550000) :

				 -EINVAL);

			break;

		case PM8607_CHIP_B0:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 6) ? (index * 50000 + 2550000) :

				((index == 6) ? 2900000 : 3300000));

			break;

		}

		break;

	case PM8607_ID_LDO6:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 8) ? (index * 50000 + 2450000) :

				-EINVAL);

			break;

		case PM8607_CHIP_B0:

			ret = (index < 2) ? (index * 50000 + 1800000) :

				((index < 7) ? (index * 50000 + 2500000) :

				3300000);

			break;

		}

		break;

	case PM8607_ID_LDO10:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 8) ? (index * 50000 + 2550000) :

				1200000);

			break;

		case PM8607_CHIP_B0:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 7) ? (index * 50000 + 2550000) :

				((index == 7) ? 3300000 : 1200000));

			break;

		}

		break;

	case PM8607_ID_LDO14:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			ret = (index < 3) ? (index * 50000 + 1800000) :

				((index < 8) ? (index * 50000 + 2550000) :

				 -EINVAL);

			break;

		case PM8607_CHIP_B0:

			ret = (index < 2) ? (index * 50000 + 1800000) :

				((index < 7) ? (index * 50000 + 2600000) :

				3300000);

			break;

		}

		break;

	}

	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);

	uint8_t chip_id = info->chip->chip_id;

	int val, ret;



	switch (info->desc.id) {

	case PM8607_ID_BUCK1:

		if (min_uV >= 800000) 		/* 800mV ~ 1500mV / 25mV */

			val = (min_uV - 775001) / 25000;

		else {				/* 25mV ~ 775mV / 25mV */

			val = (min_uV + 249999) / 25000;

			val += 32;

		}

		break;

	case PM8607_ID_BUCK3:

		if (info->slope_double)

			min_uV = min_uV >> 1;

		val = (min_uV + 249999) / 25000; /* 0mV ~ 1500mV / 25mV */



		break;

	case PM8607_ID_LDO1:

		if (min_uV > 1800000)

			val = 2;

		else if (min_uV > 1200000)

			val = 0;

		else

			val = 1;

		break;

	case PM8607_ID_LDO5:

		if (min_uV > 3100000)

			val = 3;

		else				/* 2900mV ~ 3100mV / 100mV */

			val = (min_uV - 2800001) / 100000;

		break;

	case PM8607_ID_LDO7:

	case PM8607_ID_LDO8:

		if (min_uV < 2700000) {	/* 1800mV ~ 1900mV / 50mV */

			if (min_uV <= 1800000)

				val = 0;	/* 1800mv */

			else if (min_uV <= 1900000)

				val = (min_uV - 1750001) / 50000;

			else

				val = 3;	/* 2700mV */

		} else {		 /* 2700mV ~ 2900mV / 50mV */

			if (min_uV <= 2900000) {

				val = (min_uV - 2650001) / 50000;

				val += 3;

			} else

				val = -EINVAL;

		}

		break;

	case PM8607_ID_LDO10:

		if (min_uV > 2850000)

			val = 7;

		else if (min_uV <= 1200000)

			val = 8;

		else if (min_uV < 2700000)	/* 1800mV ~ 1900mV / 50mV */

			val = (min_uV - 1750001) / 50000;

		else {				/* 2700mV ~ 2850mV / 50mV */

			val = (min_uV - 2650001) / 50000;

			val += 3;

		}

		break;

	case PM8607_ID_LDO12:

		if (min_uV < 2700000) {		/* 1800mV ~ 1900mV / 100mV */

			if (min_uV <= 1200000)

				val = 8;	/* 1200mV */

			else if (min_uV <= 1800000)

				val = 0;	/* 1800mV */

			else if (min_uV <= 1900000)

				val = (min_uV - 1700001) / 100000;

			else

				val = 2;	/* 2700mV */

		} else {			/* 2700mV ~ 3100mV / 100mV */

			if (min_uV <= 3100000) {

				val = (min_uV - 2600001) / 100000;

				val += 2;

			} else if (min_uV <= 3300000)

				val = 7;

			else

				val = -EINVAL;

		}

		break;

	case PM8607_ID_LDO2:

	case PM8607_ID_LDO3:

	case PM8607_ID_LDO9:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			if (min_uV < 2700000)	/* 1800mV ~ 1900mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1900000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 3;	/* 2700mV */

			else {			/* 2700mV ~ 2900mV / 50mV */

				if (min_uV <= 2900000) {

					val = (min_uV - 2650001) / 50000;

					val += 3;

				} else

					val = -EINVAL;

			}

			break;

		case PM8607_CHIP_B0:

			if (min_uV < 2700000) {	/* 1800mV ~ 1900mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1900000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 3;	/* 2700mV */

			} else {		 /* 2700mV ~ 2850mV / 50mV */

				if (min_uV <= 2850000) {

					val = (min_uV - 2650001) / 50000;

					val += 3;

				} else if (min_uV <= 3300000)

					val = 7;

				else

					val = -EINVAL;

			}

			break;

		}

		break;

	case PM8607_ID_LDO4:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			if (min_uV < 2700000)	/* 1800mV ~ 1900mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1900000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 3;	/* 2700mV */

			else {			/* 2700mV ~ 2900mV / 50mV */

				if (min_uV <= 2900000) {

					val = (min_uV - 2650001) / 50000;

					val += 3;

				} else

					val = -EINVAL;

			}

			break;

		case PM8607_CHIP_B0:

			if (min_uV < 2700000) {	/* 1800mV ~ 1900mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1900000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 3;	/* 2700mV */

			} else {		 /* 2700mV ~ 2800mV / 50mV */

				if (min_uV <= 2850000) {

					val = (min_uV - 2650001) / 50000;

					val += 3;

				} else if (min_uV <= 2900000)

					val = 6;

				else if (min_uV <= 3300000)

					val = 7;

				else

					val = -EINVAL;

			}

			break;

		}

		break;

	case PM8607_ID_LDO6:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			if (min_uV < 2600000) {	/* 1800mV ~ 1900mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1900000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 3;	/* 2600mV */

			} else {		/* 2600mV ~ 2800mV / 50mV */

				if (min_uV <= 2800000) {

					val = (min_uV - 2550001) / 50000;

					val += 3;

				} else

					val = -EINVAL;

			}

			break;

		case PM8607_CHIP_B0:

			if (min_uV < 2600000) {	/* 1800mV ~ 1850mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1850000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 2;	/* 2600mV */

			} else {		/* 2600mV ~ 2800mV / 50mV */

				if (min_uV <= 2800000) {

					val = (min_uV - 2550001) / 50000;

					val += 2;

				} else if (min_uV <= 3300000)

					val = 7;

				else

					val = -EINVAL;

			}

			break;

		}

		break;

	case PM8607_ID_LDO14:

		switch (chip_id) {

		case PM8607_CHIP_A0:

		case PM8607_CHIP_A1:

			if (min_uV < 2700000) {	/* 1800mV ~ 1900mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1900000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 3;	/* 2700mV */

			} else {		 /* 2700mV ~ 2900mV / 50mV */

				if (min_uV <= 2900000) {

					val = (min_uV - 2650001) / 50000;

					val += 3;

				} else

					val = -EINVAL;

			}

			break;

		case PM8607_CHIP_B0:

			if (min_uV < 2700000) {	/* 1800mV ~ 1850mV / 50mV */

				if (min_uV <= 1800000)

					val = 0;

				else if (min_uV <= 1850000)

					val = (min_uV - 1750001) / 50000;

				else

					val = 2;	/* 2700mV */

			} else {		 /* 2700mV ~ 2900mV / 50mV */

				if (min_uV <= 2900000) {

					val = (min_uV - 2650001) / 50000;

					val += 2;

				} else if (min_uV <= 3300000)

					val = 7;

				else

					val = -EINVAL;

			}

			break;

		}

		break;

	}

	if (val >= 0) {

		ret = pm8607_list_voltage(rdev, val);

		if (ret > max_uV) {

			pr_err("exceed voltage range (%d %d) uV",

				min_uV, max_uV);

			return -EINVAL;

		}

	} else

		pr_err("invalid voltage range (%d %d) uV", min_uV, max_uV);

	return val;

}



static int pm8607_set_voltage(struct regulator_dev *rdev,

			      int min_uV, int max_uV)

{

	struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);

	struct pm8607_chip *chip = info->chip;

	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;

	}



	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 = pm8607_set_bits(chip, info->vol_reg, mask, val);

	if (ret)

		return ret;

	switch (info->desc.id) {

	case PM8607_ID_BUCK1:

	case PM8607_ID_BUCK3:

		ret = pm8607_set_bits(chip, 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);

	struct pm8607_chip *chip = info->chip;

	uint8_t val, mask;

	int ret;



	ret = pm8607_reg_read(chip, 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);

	struct pm8607_chip *chip = info->chip;



	return pm8607_set_bits(chip, 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);

	struct pm8607_chip *chip = info->chip;



	return pm8607_set_bits(chip, 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);

	struct pm8607_chip *chip = info->chip;

	int ret;



	ret = pm8607_reg_read(chip, 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(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \

{									\

	.desc	= {							\

		.name	= "BUCK" #_id,					\

		.ops	= &pm8607_regulator_ops,			\

		.type	= REGULATOR_VOLTAGE,				\

		.id	= PM8607_ID_BUCK##_id,				\

		.owner	= THIS_MODULE,					\

	},								\

	.min_uV		= (min) * 1000,					\

	.max_uV		= (max) * 1000,					\

	.step_uV	= (step) * 1000,				\

	.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),						\

}



#define PM8607_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit)	\

{									\

	.desc	= {							\

		.name	= "LDO" #_id,					\

		.ops	= &pm8607_regulator_ops,			\

		.type	= REGULATOR_VOLTAGE,				\

		.id	= PM8607_ID_LDO##_id,				\

		.owner	= THIS_MODULE,					\

	},								\

	.min_uV		= (min) * 1000,					\

	.max_uV		= (max) * 1000,					\

	.step_uV	= (step) * 1000,				\

	.vol_reg	= PM8607_##vreg,				\

	.vol_shift	= (shift),					\

	.vol_nbits	= (nbits),					\

	.enable_reg	= PM8607_##ereg,				\

	.enable_bit	= (ebit),					\

	.slope_double	= (0),						\

}



static struct pm8607_regulator_info pm8607_regulator_info[] = {

	PM8607_DVC(1, 0, 1500, 25, BUCK1, 6, GO, 0, SUPPLIES_EN11, 0),

	PM8607_DVC(3, 0, 1500, 25, BUCK3, 6, GO, 2, SUPPLIES_EN11, 2),



	PM8607_LDO(1 , 1200, 2800, 0, LDO1 , 0, 2, SUPPLIES_EN11, 3),

	PM8607_LDO(2 , 1800, 3300, 0, LDO2 , 0, 3, SUPPLIES_EN11, 4),

	PM8607_LDO(3 , 1800, 3300, 0, LDO3 , 0, 3, SUPPLIES_EN11, 5),

	PM8607_LDO(4 , 1800, 3300, 0, LDO4 , 0, 3, SUPPLIES_EN11, 6),

	PM8607_LDO(5 , 2900, 3300, 0, LDO5 , 0, 2, SUPPLIES_EN11, 7),

	PM8607_LDO(6 , 1800, 3300, 0, LDO6 , 0, 3, SUPPLIES_EN12, 0),

	PM8607_LDO(7 , 1800, 2900, 0, LDO7 , 0, 3, SUPPLIES_EN12, 1),

	PM8607_LDO(8 , 1800, 2900, 0, LDO8 , 0, 3, SUPPLIES_EN12, 2),

	PM8607_LDO(9 , 1800, 3300, 0, LDO9 , 0, 3, SUPPLIES_EN12, 3),

	PM8607_LDO(10, 1200, 3300, 0, LDO10, 0, 4, SUPPLIES_EN11, 4),

	PM8607_LDO(12, 1200, 3300, 0, LDO12, 0, 4, SUPPLIES_EN11, 5),

	PM8607_LDO(14, 1800, 3300, 0, LDO14, 0, 3, SUPPLIES_EN11, 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 pm8607_chip *chip = dev_get_drvdata(pdev->dev.parent);

	struct pm8607_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->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);



	regulator_unregister(info->regulator);

	return 0;

}



#define PM8607_REGULATOR_DRIVER(_name)				\

{								\

	.driver		= {					\

		.name	= "88pm8607-" #_name,			\

		.owner	= THIS_MODULE,				\

	},							\

	.probe		= pm8607_regulator_probe,		\

	.remove		= __devexit_p(pm8607_regulator_remove),	\

}



static struct platform_driver pm8607_regulator_driver[] = {

	PM8607_REGULATOR_DRIVER(buck1),

	PM8607_REGULATOR_DRIVER(buck2),

	PM8607_REGULATOR_DRIVER(buck3),

	PM8607_REGULATOR_DRIVER(ldo1),

	PM8607_REGULATOR_DRIVER(ldo2),

	PM8607_REGULATOR_DRIVER(ldo3),

	PM8607_REGULATOR_DRIVER(ldo4),

	PM8607_REGULATOR_DRIVER(ldo5),

	PM8607_REGULATOR_DRIVER(ldo6),

	PM8607_REGULATOR_DRIVER(ldo7),

	PM8607_REGULATOR_DRIVER(ldo8),

	PM8607_REGULATOR_DRIVER(ldo9),

	PM8607_REGULATOR_DRIVER(ldo10),

	PM8607_REGULATOR_DRIVER(ldo12),

	PM8607_REGULATOR_DRIVER(ldo14),

};



static int __init pm8607_regulator_init(void)

{

	int i, count, ret;



	count = ARRAY_SIZE(pm8607_regulator_driver);

	for (i = 0; i < count; i++) {

		ret = platform_driver_register(&pm8607_regulator_driver[i]);

		if (ret != 0)

			pr_err("Failed to register regulator driver: %d\n",

				ret);

	}

	return 0;

}

subsys_initcall(pm8607_regulator_init);



static void __exit pm8607_regulator_exit(void)

{

	int i, count;



	count = ARRAY_SIZE(pm8607_regulator_driver);

	for (i = 0; i < count; i++)

		platform_driver_unregister(&pm8607_regulator_driver[i]);

}

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");

drivers/regulator/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -164,5 +164,11 @@ config REGULATOR_TPS6507X 
	  three step-down converters and two general-purpose LDO voltage regulators.

	  It supports TI's software based Class-2 SmartReflex implementation.



config REGULATOR_88PM8607

	bool "Marvell 88PM8607 Power regulators"

	depends on MFD_88PM8607=y

	help

	  This driver supports 88PM8607 voltage regulator chips.



endif

drivers/regulator/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -26,5 +26,6 @@ obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o 


obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o

obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o

obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o



ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG