Linux-libre 4.7.1-gnupck-4.7.1-gnu

1 files changed, 0 insertions, 1241 deletions

diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
deleted file mode 100644
index ea0196d44..000000000
--- a/drivers/regulator/max8997.c
+++ /dev/null
@@ -1,1241 +0,0 @@
-/*
- * max8997.c - Regulator driver for the Maxim 8997/8966
- *
- * Copyright (C) 2011 Samsung Electronics
- * MyungJoo Ham <myungjoo.ham@smasung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * This driver is based on max8998.c
- */
-
-#include <linux/bug.h>
-#include <linux/err.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/driver.h>
-#include <linux/regulator/machine.h>
-#include <linux/mfd/max8997.h>
-#include <linux/mfd/max8997-private.h>
-#include <linux/regulator/of_regulator.h>
-
-struct max8997_data {
-	struct device *dev;
-	struct max8997_dev *iodev;
-	int num_regulators;
-	int ramp_delay; /* in mV/us */
-
-	bool buck1_gpiodvs;
-	bool buck2_gpiodvs;
-	bool buck5_gpiodvs;
-	u8 buck1_vol[8];
-	u8 buck2_vol[8];
-	u8 buck5_vol[8];
-	int buck125_gpios[3];
-	int buck125_gpioindex;
-	bool ignore_gpiodvs_side_effect;
-
-	u8 saved_states[MAX8997_REG_MAX];
-};
-
-static const unsigned int safeoutvolt[] = {
-	4850000,
-	4900000,
-	4950000,
-	3300000,
-};
-
-static inline void max8997_set_gpio(struct max8997_data *max8997)
-{
-	int set3 = (max8997->buck125_gpioindex) & 0x1;
-	int set2 = ((max8997->buck125_gpioindex) >> 1) & 0x1;
-	int set1 = ((max8997->buck125_gpioindex) >> 2) & 0x1;
-
-	gpio_set_value(max8997->buck125_gpios[0], set1);
-	gpio_set_value(max8997->buck125_gpios[1], set2);
-	gpio_set_value(max8997->buck125_gpios[2], set3);
-}
-
-struct voltage_map_desc {
-	int min;
-	int max;
-	int step;
-};
-
-/* Voltage maps in uV */
-static const struct voltage_map_desc ldo_voltage_map_desc = {
-	.min = 800000,	.max = 3950000,	.step = 50000,
-}; /* LDO1 ~ 18, 21 all */
-
-static const struct voltage_map_desc buck1245_voltage_map_desc = {
-	.min = 650000,	.max = 2225000,	.step = 25000,
-}; /* Buck1, 2, 4, 5 */
-
-static const struct voltage_map_desc buck37_voltage_map_desc = {
-	.min = 750000,	.max = 3900000,	.step = 50000,
-}; /* Buck3, 7 */
-
-/* current map in uA */
-static const struct voltage_map_desc charger_current_map_desc = {
-	.min = 200000,	.max = 950000,	.step = 50000,
-};
-
-static const struct voltage_map_desc topoff_current_map_desc = {
-	.min = 50000,	.max = 200000,	.step = 10000,
-};
-
-static const struct voltage_map_desc *reg_voltage_map[] = {
-	[MAX8997_LDO1] = &ldo_voltage_map_desc,
-	[MAX8997_LDO2] = &ldo_voltage_map_desc,
-	[MAX8997_LDO3] = &ldo_voltage_map_desc,
-	[MAX8997_LDO4] = &ldo_voltage_map_desc,
-	[MAX8997_LDO5] = &ldo_voltage_map_desc,
-	[MAX8997_LDO6] = &ldo_voltage_map_desc,
-	[MAX8997_LDO7] = &ldo_voltage_map_desc,
-	[MAX8997_LDO8] = &ldo_voltage_map_desc,
-	[MAX8997_LDO9] = &ldo_voltage_map_desc,
-	[MAX8997_LDO10] = &ldo_voltage_map_desc,
-	[MAX8997_LDO11] = &ldo_voltage_map_desc,
-	[MAX8997_LDO12] = &ldo_voltage_map_desc,
-	[MAX8997_LDO13] = &ldo_voltage_map_desc,
-	[MAX8997_LDO14] = &ldo_voltage_map_desc,
-	[MAX8997_LDO15] = &ldo_voltage_map_desc,
-	[MAX8997_LDO16] = &ldo_voltage_map_desc,
-	[MAX8997_LDO17] = &ldo_voltage_map_desc,
-	[MAX8997_LDO18] = &ldo_voltage_map_desc,
-	[MAX8997_LDO21] = &ldo_voltage_map_desc,
-	[MAX8997_BUCK1] = &buck1245_voltage_map_desc,
-	[MAX8997_BUCK2] = &buck1245_voltage_map_desc,
-	[MAX8997_BUCK3] = &buck37_voltage_map_desc,
-	[MAX8997_BUCK4] = &buck1245_voltage_map_desc,
-	[MAX8997_BUCK5] = &buck1245_voltage_map_desc,
-	[MAX8997_BUCK6] = NULL,
-	[MAX8997_BUCK7] = &buck37_voltage_map_desc,
-	[MAX8997_EN32KHZ_AP] = NULL,
-	[MAX8997_EN32KHZ_CP] = NULL,
-	[MAX8997_ENVICHG] = NULL,
-	[MAX8997_ESAFEOUT1] = NULL,
-	[MAX8997_ESAFEOUT2] = NULL,
-	[MAX8997_CHARGER_CV] = NULL,
-	[MAX8997_CHARGER] = &charger_current_map_desc,
-	[MAX8997_CHARGER_TOPOFF] = &topoff_current_map_desc,
-};
-
-static int max8997_list_voltage_charger_cv(struct regulator_dev *rdev,
-		unsigned int selector)
-{
-	int rid = rdev_get_id(rdev);
-
-	if (rid != MAX8997_CHARGER_CV)
-		goto err;
-
-	switch (selector) {
-	case 0x00:
-		return 4200000;
-	case 0x01 ... 0x0E:
-		return 4000000 + 20000 * (selector - 0x01);
-	case 0x0F:
-		return 4350000;
-	default:
-		return -EINVAL;
-	}
-err:
-	return -EINVAL;
-}
-
-static int max8997_list_voltage(struct regulator_dev *rdev,
-		unsigned int selector)
-{
-	const struct voltage_map_desc *desc;
-	int rid = rdev_get_id(rdev);
-	int val;
-
-	if (rid >= ARRAY_SIZE(reg_voltage_map) ||
-			rid < 0)
-		return -EINVAL;
-
-	desc = reg_voltage_map[rid];
-	if (desc == NULL)
-		return -EINVAL;
-
-	val = desc->min + desc->step * selector;
-	if (val > desc->max)
-		return -EINVAL;
-
-	return val;
-}
-
-static int max8997_get_enable_register(struct regulator_dev *rdev,
-		int *reg, int *mask, int *pattern)
-{
-	int rid = rdev_get_id(rdev);
-
-	switch (rid) {
-	case MAX8997_LDO1 ... MAX8997_LDO21:
-		*reg = MAX8997_REG_LDO1CTRL + (rid - MAX8997_LDO1);
-		*mask = 0xC0;
-		*pattern = 0xC0;
-		break;
-	case MAX8997_BUCK1:
-		*reg = MAX8997_REG_BUCK1CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_BUCK2:
-		*reg = MAX8997_REG_BUCK2CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_BUCK3:
-		*reg = MAX8997_REG_BUCK3CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_BUCK4:
-		*reg = MAX8997_REG_BUCK4CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_BUCK5:
-		*reg = MAX8997_REG_BUCK5CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_BUCK6:
-		*reg = MAX8997_REG_BUCK6CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_BUCK7:
-		*reg = MAX8997_REG_BUCK7CTRL;
-		*mask = 0x01;
-		*pattern = 0x01;
-		break;
-	case MAX8997_EN32KHZ_AP ... MAX8997_EN32KHZ_CP:
-		*reg = MAX8997_REG_MAINCON1;
-		*mask = 0x01 << (rid - MAX8997_EN32KHZ_AP);
-		*pattern = 0x01 << (rid - MAX8997_EN32KHZ_AP);
-		break;
-	case MAX8997_ENVICHG:
-		*reg = MAX8997_REG_MBCCTRL1;
-		*mask = 0x80;
-		*pattern = 0x80;
-		break;
-	case MAX8997_ESAFEOUT1 ... MAX8997_ESAFEOUT2:
-		*reg = MAX8997_REG_SAFEOUTCTRL;
-		*mask = 0x40 << (rid - MAX8997_ESAFEOUT1);
-		*pattern = 0x40 << (rid - MAX8997_ESAFEOUT1);
-		break;
-	case MAX8997_CHARGER:
-		*reg = MAX8997_REG_MBCCTRL2;
-		*mask = 0x40;
-		*pattern = 0x40;
-		break;
-	default:
-		/* Not controllable or not exists */
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int max8997_reg_is_enabled(struct regulator_dev *rdev)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int ret, reg, mask, pattern;
-	u8 val;
-
-	ret = max8997_get_enable_register(rdev, &reg, &mask, &pattern);
-	if (ret)
-		return ret;
-
-	ret = max8997_read_reg(i2c, reg, &val);
-	if (ret)
-		return ret;
-
-	return (val & mask) == pattern;
-}
-
-static int max8997_reg_enable(struct regulator_dev *rdev)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int ret, reg, mask, pattern;
-
-	ret = max8997_get_enable_register(rdev, &reg, &mask, &pattern);
-	if (ret)
-		return ret;
-
-	return max8997_update_reg(i2c, reg, pattern, mask);
-}
-
-static int max8997_reg_disable(struct regulator_dev *rdev)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int ret, reg, mask, pattern;
-
-	ret = max8997_get_enable_register(rdev, &reg, &mask, &pattern);
-	if (ret)
-		return ret;
-
-	return max8997_update_reg(i2c, reg, ~pattern, mask);
-}
-
-static int max8997_get_voltage_register(struct regulator_dev *rdev,
-		int *_reg, int *_shift, int *_mask)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	int rid = rdev_get_id(rdev);
-	int reg, shift = 0, mask = 0x3f;
-
-	switch (rid) {
-	case MAX8997_LDO1 ... MAX8997_LDO21:
-		reg = MAX8997_REG_LDO1CTRL + (rid - MAX8997_LDO1);
-		break;
-	case MAX8997_BUCK1:
-		reg = MAX8997_REG_BUCK1DVS1;
-		if (max8997->buck1_gpiodvs)
-			reg += max8997->buck125_gpioindex;
-		break;
-	case MAX8997_BUCK2:
-		reg = MAX8997_REG_BUCK2DVS1;
-		if (max8997->buck2_gpiodvs)
-			reg += max8997->buck125_gpioindex;
-		break;
-	case MAX8997_BUCK3:
-		reg = MAX8997_REG_BUCK3DVS;
-		break;
-	case MAX8997_BUCK4:
-		reg = MAX8997_REG_BUCK4DVS;
-		break;
-	case MAX8997_BUCK5:
-		reg = MAX8997_REG_BUCK5DVS1;
-		if (max8997->buck5_gpiodvs)
-			reg += max8997->buck125_gpioindex;
-		break;
-	case MAX8997_BUCK7:
-		reg = MAX8997_REG_BUCK7DVS;
-		break;
-	case MAX8997_ESAFEOUT1 ...  MAX8997_ESAFEOUT2:
-		reg = MAX8997_REG_SAFEOUTCTRL;
-		shift = (rid == MAX8997_ESAFEOUT2) ? 2 : 0;
-		mask = 0x3;
-		break;
-	case MAX8997_CHARGER_CV:
-		reg = MAX8997_REG_MBCCTRL3;
-		shift = 0;
-		mask = 0xf;
-		break;
-	case MAX8997_CHARGER:
-		reg = MAX8997_REG_MBCCTRL4;
-		shift = 0;
-		mask = 0xf;
-		break;
-	case MAX8997_CHARGER_TOPOFF:
-		reg = MAX8997_REG_MBCCTRL5;
-		shift = 0;
-		mask = 0xf;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	*_reg = reg;
-	*_shift = shift;
-	*_mask = mask;
-
-	return 0;
-}
-
-static int max8997_get_voltage_sel(struct regulator_dev *rdev)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int reg, shift, mask, ret;
-	u8 val;
-
-	ret = max8997_get_voltage_register(rdev, &reg, &shift, &mask);
-	if (ret)
-		return ret;
-
-	ret = max8997_read_reg(i2c, reg, &val);
-	if (ret)
-		return ret;
-
-	val >>= shift;
-	val &= mask;
-
-	return val;
-}
-
-static inline int max8997_get_voltage_proper_val(
-		const struct voltage_map_desc *desc,
-		int min_vol, int max_vol)
-{
-	int i;
-
-	if (desc == NULL)
-		return -EINVAL;
-
-	if (max_vol < desc->min || min_vol > desc->max)
-		return -EINVAL;
-
-	if (min_vol < desc->min)
-		min_vol = desc->min;
-
-	i = DIV_ROUND_UP(min_vol - desc->min, desc->step);
-
-	if (desc->min + desc->step * i > max_vol)
-		return -EINVAL;
-
-	return i;
-}
-
-static int max8997_set_voltage_charger_cv(struct regulator_dev *rdev,
-		int min_uV, int max_uV, unsigned *selector)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int rid = rdev_get_id(rdev);
-	int lb, ub;
-	int reg, shift = 0, mask, ret = 0;
-	u8 val = 0x0;
-
-	if (rid != MAX8997_CHARGER_CV)
-		return -EINVAL;
-
-	ret = max8997_get_voltage_register(rdev, &reg, &shift, &mask);
-	if (ret)
-		return ret;
-
-	if (max_uV < 4000000 || min_uV > 4350000)
-		return -EINVAL;
-
-	if (min_uV <= 4000000) {
-		if (max_uV >= 4000000)
-			return -EINVAL;
-		else
-			val = 0x1;
-	} else if (min_uV <= 4200000 && max_uV >= 4200000)
-		val = 0x0;
-	else {
-		lb = (min_uV - 4000001) / 20000 + 2;
-		ub = (max_uV - 4000000) / 20000 + 1;
-
-		if (lb > ub)
-			return -EINVAL;
-
-		if (lb < 0xf)
-			val = lb;
-		else {
-			if (ub >= 0xf)
-				val = 0xf;
-			else
-				return -EINVAL;
-		}
-	}
-
-	*selector = val;
-
-	ret = max8997_update_reg(i2c, reg, val << shift, mask);
-
-	return ret;
-}
-
-/*
- * For LDO1 ~ LDO21, BUCK1~5, BUCK7, CHARGER, CHARGER_TOPOFF
- * BUCK1, 2, and 5 are available if they are not controlled by gpio
- */
-static int max8997_set_voltage_ldobuck(struct regulator_dev *rdev,
-		int min_uV, int max_uV, unsigned *selector)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	const struct voltage_map_desc *desc;
-	int rid = rdev_get_id(rdev);
-	int i, reg, shift, mask, ret;
-
-	switch (rid) {
-	case MAX8997_LDO1 ... MAX8997_LDO21:
-		break;
-	case MAX8997_BUCK1 ... MAX8997_BUCK5:
-		break;
-	case MAX8997_BUCK6:
-		return -EINVAL;
-	case MAX8997_BUCK7:
-		break;
-	case MAX8997_CHARGER:
-		break;
-	case MAX8997_CHARGER_TOPOFF:
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	desc = reg_voltage_map[rid];
-
-	i = max8997_get_voltage_proper_val(desc, min_uV, max_uV);
-	if (i < 0)
-		return i;
-
-	ret = max8997_get_voltage_register(rdev, &reg, &shift, &mask);
-	if (ret)
-		return ret;
-
-	ret = max8997_update_reg(i2c, reg, i << shift, mask << shift);
-	*selector = i;
-
-	return ret;
-}
-
-static int max8997_set_voltage_buck_time_sel(struct regulator_dev *rdev,
-						unsigned int old_selector,
-						unsigned int new_selector)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	int rid = rdev_get_id(rdev);
-	const struct voltage_map_desc *desc = reg_voltage_map[rid];
-
-	/* Delay is required only if the voltage is increasing */
-	if (old_selector >= new_selector)
-		return 0;
-
-	/* No need to delay if gpio_dvs_mode */
-	switch (rid) {
-	case MAX8997_BUCK1:
-		if (max8997->buck1_gpiodvs)
-			return 0;
-		break;
-	case MAX8997_BUCK2:
-		if (max8997->buck2_gpiodvs)
-			return 0;
-		break;
-	case MAX8997_BUCK5:
-		if (max8997->buck5_gpiodvs)
-			return 0;
-		break;
-	}
-
-	switch (rid) {
-	case MAX8997_BUCK1:
-	case MAX8997_BUCK2:
-	case MAX8997_BUCK4:
-	case MAX8997_BUCK5:
-		return DIV_ROUND_UP(desc->step * (new_selector - old_selector),
-				    max8997->ramp_delay * 1000);
-	}
-
-	return 0;
-}
-
-/*
- * Assess the damage on the voltage setting of BUCK1,2,5 by the change.
- *
- * When GPIO-DVS mode is used for multiple bucks, changing the voltage value
- * of one of the bucks may affect that of another buck, which is the side
- * effect of the change (set_voltage). This function examines the GPIO-DVS
- * configurations and checks whether such side-effect exists.
- */
-static int max8997_assess_side_effect(struct regulator_dev *rdev,
-		u8 new_val, int *best)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	int rid = rdev_get_id(rdev);
-	u8 *buckx_val[3];
-	bool buckx_gpiodvs[3];
-	int side_effect[8];
-	int min_side_effect = INT_MAX;
-	int i;
-
-	*best = -1;
-
-	switch (rid) {
-	case MAX8997_BUCK1:
-		rid = 0;
-		break;
-	case MAX8997_BUCK2:
-		rid = 1;
-		break;
-	case MAX8997_BUCK5:
-		rid = 2;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	buckx_val[0] = max8997->buck1_vol;
-	buckx_val[1] = max8997->buck2_vol;
-	buckx_val[2] = max8997->buck5_vol;
-	buckx_gpiodvs[0] = max8997->buck1_gpiodvs;
-	buckx_gpiodvs[1] = max8997->buck2_gpiodvs;
-	buckx_gpiodvs[2] = max8997->buck5_gpiodvs;
-
-	for (i = 0; i < 8; i++) {
-		int others;
-
-		if (new_val != (buckx_val[rid])[i]) {
-			side_effect[i] = -1;
-			continue;
-		}
-
-		side_effect[i] = 0;
-		for (others = 0; others < 3; others++) {
-			int diff;
-
-			if (others == rid)
-				continue;
-			if (buckx_gpiodvs[others] == false)
-				continue; /* Not affected */
-			diff = (buckx_val[others])[i] -
-				(buckx_val[others])[max8997->buck125_gpioindex];
-			if (diff > 0)
-				side_effect[i] += diff;
-			else if (diff < 0)
-				side_effect[i] -= diff;
-		}
-		if (side_effect[i] == 0) {
-			*best = i;
-			return 0; /* NO SIDE EFFECT! Use This! */
-		}
-		if (side_effect[i] < min_side_effect) {
-			min_side_effect = side_effect[i];
-			*best = i;
-		}
-	}
-
-	if (*best == -1)
-		return -EINVAL;
-
-	return side_effect[*best];
-}
-
-/*
- * For Buck 1 ~ 5 and 7. If it is not controlled by GPIO, this calls
- * max8997_set_voltage_ldobuck to do the job.
- */
-static int max8997_set_voltage_buck(struct regulator_dev *rdev,
-		int min_uV, int max_uV, unsigned *selector)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	int rid = rdev_get_id(rdev);
-	const struct voltage_map_desc *desc;
-	int new_val, new_idx, damage, tmp_val, tmp_idx, tmp_dmg;
-	bool gpio_dvs_mode = false;
-
-	if (rid < MAX8997_BUCK1 || rid > MAX8997_BUCK7)
-		return -EINVAL;
-
-	switch (rid) {
-	case MAX8997_BUCK1:
-		if (max8997->buck1_gpiodvs)
-			gpio_dvs_mode = true;
-		break;
-	case MAX8997_BUCK2:
-		if (max8997->buck2_gpiodvs)
-			gpio_dvs_mode = true;
-		break;
-	case MAX8997_BUCK5:
-		if (max8997->buck5_gpiodvs)
-			gpio_dvs_mode = true;
-		break;
-	}
-
-	if (!gpio_dvs_mode)
-		return max8997_set_voltage_ldobuck(rdev, min_uV, max_uV,
-						selector);
-
-	desc = reg_voltage_map[rid];
-	new_val = max8997_get_voltage_proper_val(desc, min_uV, max_uV);
-	if (new_val < 0)
-		return new_val;
-
-	tmp_dmg = INT_MAX;
-	tmp_idx = -1;
-	tmp_val = -1;
-	do {
-		damage = max8997_assess_side_effect(rdev, new_val, &new_idx);
-		if (damage == 0)
-			goto out;
-
-		if (tmp_dmg > damage) {
-			tmp_idx = new_idx;
-			tmp_val = new_val;
-			tmp_dmg = damage;
-		}
-
-		new_val++;
-	} while (desc->min + desc->step * new_val <= desc->max);
-
-	new_idx = tmp_idx;
-	new_val = tmp_val;
-
-	if (max8997->ignore_gpiodvs_side_effect == false)
-		return -EINVAL;
-
-	dev_warn(&rdev->dev,
-		"MAX8997 GPIO-DVS Side Effect Warning: GPIO SET:  %d -> %d\n",
-		max8997->buck125_gpioindex, tmp_idx);
-
-out:
-	if (new_idx < 0 || new_val < 0)
-		return -EINVAL;
-
-	max8997->buck125_gpioindex = new_idx;
-	max8997_set_gpio(max8997);
-	*selector = new_val;
-
-	return 0;
-}
-
-/* For SAFEOUT1 and SAFEOUT2 */
-static int max8997_set_voltage_safeout_sel(struct regulator_dev *rdev,
-					   unsigned selector)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int rid = rdev_get_id(rdev);
-	int reg, shift = 0, mask, ret;
-
-	if (rid != MAX8997_ESAFEOUT1 && rid != MAX8997_ESAFEOUT2)
-		return -EINVAL;
-
-	ret = max8997_get_voltage_register(rdev, &reg, &shift, &mask);
-	if (ret)
-		return ret;
-
-	return max8997_update_reg(i2c, reg, selector << shift, mask << shift);
-}
-
-static int max8997_reg_disable_suspend(struct regulator_dev *rdev)
-{
-	struct max8997_data *max8997 = rdev_get_drvdata(rdev);
-	struct i2c_client *i2c = max8997->iodev->i2c;
-	int ret, reg, mask, pattern;
-	int rid = rdev_get_id(rdev);
-
-	ret = max8997_get_enable_register(rdev, &reg, &mask, &pattern);
-	if (ret)
-		return ret;
-
-	max8997_read_reg(i2c, reg, &max8997->saved_states[rid]);
-
-	if (rid == MAX8997_LDO1 ||
-			rid == MAX8997_LDO10 ||
-			rid == MAX8997_LDO21) {
-		dev_dbg(&rdev->dev, "Conditional Power-Off for %s\n",
-				rdev->desc->name);
-		return max8997_update_reg(i2c, reg, 0x40, mask);
-	}
-
-	dev_dbg(&rdev->dev, "Full Power-Off for %s (%xh -> %xh)\n",
-			rdev->desc->name, max8997->saved_states[rid] & mask,
-			(~pattern) & mask);
-	return max8997_update_reg(i2c, reg, ~pattern, mask);
-}
-
-static struct regulator_ops max8997_ldo_ops = {
-	.list_voltage		= max8997_list_voltage,
-	.is_enabled		= max8997_reg_is_enabled,
-	.enable			= max8997_reg_enable,
-	.disable		= max8997_reg_disable,
-	.get_voltage_sel	= max8997_get_voltage_sel,
-	.set_voltage		= max8997_set_voltage_ldobuck,
-	.set_suspend_disable	= max8997_reg_disable_suspend,
-};
-
-static struct regulator_ops max8997_buck_ops = {
-	.list_voltage		= max8997_list_voltage,
-	.is_enabled		= max8997_reg_is_enabled,
-	.enable			= max8997_reg_enable,
-	.disable		= max8997_reg_disable,
-	.get_voltage_sel	= max8997_get_voltage_sel,
-	.set_voltage		= max8997_set_voltage_buck,
-	.set_voltage_time_sel	= max8997_set_voltage_buck_time_sel,
-	.set_suspend_disable	= max8997_reg_disable_suspend,
-};
-
-static struct regulator_ops max8997_fixedvolt_ops = {
-	.list_voltage		= max8997_list_voltage,
-	.is_enabled		= max8997_reg_is_enabled,
-	.enable			= max8997_reg_enable,
-	.disable		= max8997_reg_disable,
-	.set_suspend_disable	= max8997_reg_disable_suspend,
-};
-
-static struct regulator_ops max8997_safeout_ops = {
-	.list_voltage		= regulator_list_voltage_table,
-	.is_enabled		= max8997_reg_is_enabled,
-	.enable			= max8997_reg_enable,
-	.disable		= max8997_reg_disable,
-	.get_voltage_sel	= max8997_get_voltage_sel,
-	.set_voltage_sel	= max8997_set_voltage_safeout_sel,
-	.set_suspend_disable	= max8997_reg_disable_suspend,
-};
-
-static struct regulator_ops max8997_fixedstate_ops = {
-	.list_voltage		= max8997_list_voltage_charger_cv,
-	.get_voltage_sel	= max8997_get_voltage_sel,
-	.set_voltage		= max8997_set_voltage_charger_cv,
-};
-
-static int max8997_set_current_limit(struct regulator_dev *rdev,
-				     int min_uA, int max_uA)
-{
-	unsigned dummy;
-	int rid = rdev_get_id(rdev);
-
-	if (rid != MAX8997_CHARGER && rid != MAX8997_CHARGER_TOPOFF)
-		return -EINVAL;
-
-	/* Reuse max8997_set_voltage_ldobuck to set current_limit. */
-	return max8997_set_voltage_ldobuck(rdev, min_uA, max_uA, &dummy);
-}
-
-static int max8997_get_current_limit(struct regulator_dev *rdev)
-{
-	int sel, rid = rdev_get_id(rdev);
-
-	if (rid != MAX8997_CHARGER && rid != MAX8997_CHARGER_TOPOFF)
-		return -EINVAL;
-
-	sel = max8997_get_voltage_sel(rdev);
-	if (sel < 0)
-		return sel;
-
-	/* Reuse max8997_list_voltage to get current_limit. */
-	return max8997_list_voltage(rdev, sel);
-}
-
-static struct regulator_ops max8997_charger_ops = {
-	.is_enabled		= max8997_reg_is_enabled,
-	.enable			= max8997_reg_enable,
-	.disable		= max8997_reg_disable,
-	.get_current_limit	= max8997_get_current_limit,
-	.set_current_limit	= max8997_set_current_limit,
-};
-
-static struct regulator_ops max8997_charger_fixedstate_ops = {
-	.get_current_limit	= max8997_get_current_limit,
-	.set_current_limit	= max8997_set_current_limit,
-};
-
-#define MAX8997_VOLTAGE_REGULATOR(_name, _ops) {\
-	.name		= #_name,		\
-	.id		= MAX8997_##_name,	\
-	.ops		= &_ops,		\
-	.type		= REGULATOR_VOLTAGE,	\
-	.owner		= THIS_MODULE,		\
-}
-
-#define MAX8997_CURRENT_REGULATOR(_name, _ops) {\
-	.name		= #_name,		\
-	.id		= MAX8997_##_name,	\
-	.ops		= &_ops,		\
-	.type		= REGULATOR_CURRENT,	\
-	.owner		= THIS_MODULE,		\
-}
-
-static struct regulator_desc regulators[] = {
-	MAX8997_VOLTAGE_REGULATOR(LDO1, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO2, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO3, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO4, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO5, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO6, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO7, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO8, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO9, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO10, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO11, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO12, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO13, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO14, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO15, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO16, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO17, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO18, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(LDO21, max8997_ldo_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK1, max8997_buck_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK2, max8997_buck_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK3, max8997_buck_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK4, max8997_buck_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK5, max8997_buck_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK6, max8997_fixedvolt_ops),
-	MAX8997_VOLTAGE_REGULATOR(BUCK7, max8997_buck_ops),
-	MAX8997_VOLTAGE_REGULATOR(EN32KHZ_AP, max8997_fixedvolt_ops),
-	MAX8997_VOLTAGE_REGULATOR(EN32KHZ_CP, max8997_fixedvolt_ops),
-	MAX8997_VOLTAGE_REGULATOR(ENVICHG, max8997_fixedvolt_ops),
-	MAX8997_VOLTAGE_REGULATOR(ESAFEOUT1, max8997_safeout_ops),
-	MAX8997_VOLTAGE_REGULATOR(ESAFEOUT2, max8997_safeout_ops),
-	MAX8997_VOLTAGE_REGULATOR(CHARGER_CV, max8997_fixedstate_ops),
-	MAX8997_CURRENT_REGULATOR(CHARGER, max8997_charger_ops),
-	MAX8997_CURRENT_REGULATOR(CHARGER_TOPOFF,
-				  max8997_charger_fixedstate_ops),
-};
-
-#ifdef CONFIG_OF
-static int max8997_pmic_dt_parse_dvs_gpio(struct platform_device *pdev,
-			struct max8997_platform_data *pdata,
-			struct device_node *pmic_np)
-{
-	int i, gpio;
-
-	for (i = 0; i < 3; i++) {
-		gpio = of_get_named_gpio(pmic_np,
-					"max8997,pmic-buck125-dvs-gpios", i);
-		if (!gpio_is_valid(gpio)) {
-			dev_err(&pdev->dev, "invalid gpio[%d]: %d\n", i, gpio);
-			return -EINVAL;
-		}
-		pdata->buck125_gpios[i] = gpio;
-	}
-	return 0;
-}
-
-static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
-					struct max8997_platform_data *pdata)
-{
-	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct device_node *pmic_np, *regulators_np, *reg_np;
-	struct max8997_regulator_data *rdata;
-	unsigned int i, dvs_voltage_nr = 1, ret;
-
-	pmic_np = iodev->dev->of_node;
-	if (!pmic_np) {
-		dev_err(&pdev->dev, "could not find pmic sub-node\n");
-		return -ENODEV;
-	}
-
-	regulators_np = of_get_child_by_name(pmic_np, "regulators");
-	if (!regulators_np) {
-		dev_err(&pdev->dev, "could not find regulators sub-node\n");
-		return -EINVAL;
-	}
-
-	/* count the number of regulators to be supported in pmic */
-	pdata->num_regulators = of_get_child_count(regulators_np);
-
-	rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) *
-				pdata->num_regulators, GFP_KERNEL);
-	if (!rdata) {
-		of_node_put(regulators_np);
-		return -ENOMEM;
-	}
-
-	pdata->regulators = rdata;
-	for_each_child_of_node(regulators_np, reg_np) {
-		for (i = 0; i < ARRAY_SIZE(regulators); i++)
-			if (!of_node_cmp(reg_np->name, regulators[i].name))
-				break;
-
-		if (i == ARRAY_SIZE(regulators)) {
-			dev_warn(&pdev->dev, "don't know how to configure regulator %s\n",
-				 reg_np->name);
-			continue;
-		}
-
-		rdata->id = i;
-		rdata->initdata = of_get_regulator_init_data(&pdev->dev,
-							     reg_np,
-							     &regulators[i]);
-		rdata->reg_node = reg_np;
-		rdata++;
-	}
-	of_node_put(regulators_np);
-
-	if (of_get_property(pmic_np, "max8997,pmic-buck1-uses-gpio-dvs", NULL))
-		pdata->buck1_gpiodvs = true;
-
-	if (of_get_property(pmic_np, "max8997,pmic-buck2-uses-gpio-dvs", NULL))
-		pdata->buck2_gpiodvs = true;
-
-	if (of_get_property(pmic_np, "max8997,pmic-buck5-uses-gpio-dvs", NULL))
-		pdata->buck5_gpiodvs = true;
-
-	if (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
-						pdata->buck5_gpiodvs) {
-		ret = max8997_pmic_dt_parse_dvs_gpio(pdev, pdata, pmic_np);
-		if (ret)
-			return -EINVAL;
-
-		if (of_property_read_u32(pmic_np,
-				"max8997,pmic-buck125-default-dvs-idx",
-				&pdata->buck125_default_idx)) {
-			pdata->buck125_default_idx = 0;
-		} else {
-			if (pdata->buck125_default_idx >= 8) {
-				pdata->buck125_default_idx = 0;
-				dev_info(&pdev->dev, "invalid value for default dvs index, using 0 instead\n");
-			}
-		}
-
-		if (of_get_property(pmic_np,
-			"max8997,pmic-ignore-gpiodvs-side-effect", NULL))
-			pdata->ignore_gpiodvs_side_effect = true;
-
-		dvs_voltage_nr = 8;
-	}
-
-	if (of_property_read_u32_array(pmic_np,
-				"max8997,pmic-buck1-dvs-voltage",
-				pdata->buck1_voltage, dvs_voltage_nr)) {
-		dev_err(&pdev->dev, "buck1 voltages not specified\n");
-		return -EINVAL;
-	}
-
-	if (of_property_read_u32_array(pmic_np,
-				"max8997,pmic-buck2-dvs-voltage",
-				pdata->buck2_voltage, dvs_voltage_nr)) {
-		dev_err(&pdev->dev, "buck2 voltages not specified\n");
-		return -EINVAL;
-	}
-
-	if (of_property_read_u32_array(pmic_np,
-				"max8997,pmic-buck5-dvs-voltage",
-				pdata->buck5_voltage, dvs_voltage_nr)) {
-		dev_err(&pdev->dev, "buck5 voltages not specified\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-#else
-static int max8997_pmic_dt_parse_pdata(struct platform_device *pdev,
-					struct max8997_platform_data *pdata)
-{
-	return 0;
-}
-#endif /* CONFIG_OF */
-
-static int max8997_pmic_probe(struct platform_device *pdev)
-{
-	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct max8997_platform_data *pdata = iodev->pdata;
-	struct regulator_config config = { };
-	struct regulator_dev *rdev;
-	struct max8997_data *max8997;
-	struct i2c_client *i2c;
-	int i, ret, nr_dvs;
-	u8 max_buck1 = 0, max_buck2 = 0, max_buck5 = 0;
-
-	if (!pdata) {
-		dev_err(&pdev->dev, "No platform init data supplied.\n");
-		return -ENODEV;
-	}
-
-	if (iodev->dev->of_node) {
-		ret = max8997_pmic_dt_parse_pdata(pdev, pdata);
-		if (ret)
-			return ret;
-	}
-
-	max8997 = devm_kzalloc(&pdev->dev, sizeof(struct max8997_data),
-			       GFP_KERNEL);
-	if (!max8997)
-		return -ENOMEM;
-
-	max8997->dev = &pdev->dev;
-	max8997->iodev = iodev;
-	max8997->num_regulators = pdata->num_regulators;
-	platform_set_drvdata(pdev, max8997);
-	i2c = max8997->iodev->i2c;
-
-	max8997->buck125_gpioindex = pdata->buck125_default_idx;
-	max8997->buck1_gpiodvs = pdata->buck1_gpiodvs;
-	max8997->buck2_gpiodvs = pdata->buck2_gpiodvs;
-	max8997->buck5_gpiodvs = pdata->buck5_gpiodvs;
-	memcpy(max8997->buck125_gpios, pdata->buck125_gpios, sizeof(int) * 3);
-	max8997->ignore_gpiodvs_side_effect = pdata->ignore_gpiodvs_side_effect;
-
-	nr_dvs = (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
-			pdata->buck5_gpiodvs) ? 8 : 1;
-
-	for (i = 0; i < nr_dvs; i++) {
-		max8997->buck1_vol[i] = ret =
-			max8997_get_voltage_proper_val(
-					&buck1245_voltage_map_desc,
-					pdata->buck1_voltage[i],
-					pdata->buck1_voltage[i] +
-					buck1245_voltage_map_desc.step);
-		if (ret < 0)
-			return ret;
-
-		max8997->buck2_vol[i] = ret =
-			max8997_get_voltage_proper_val(
-					&buck1245_voltage_map_desc,
-					pdata->buck2_voltage[i],
-					pdata->buck2_voltage[i] +
-					buck1245_voltage_map_desc.step);
-		if (ret < 0)
-			return ret;
-
-		max8997->buck5_vol[i] = ret =
-			max8997_get_voltage_proper_val(
-					&buck1245_voltage_map_desc,
-					pdata->buck5_voltage[i],
-					pdata->buck5_voltage[i] +
-					buck1245_voltage_map_desc.step);
-		if (ret < 0)
-			return ret;
-
-		if (max_buck1 < max8997->buck1_vol[i])
-			max_buck1 = max8997->buck1_vol[i];
-		if (max_buck2 < max8997->buck2_vol[i])
-			max_buck2 = max8997->buck2_vol[i];
-		if (max_buck5 < max8997->buck5_vol[i])
-			max_buck5 = max8997->buck5_vol[i];
-	}
-
-	/* For the safety, set max voltage before setting up */
-	for (i = 0; i < 8; i++) {
-		max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
-				max_buck1, 0x3f);
-		max8997_update_reg(i2c, MAX8997_REG_BUCK2DVS1 + i,
-				max_buck2, 0x3f);
-		max8997_update_reg(i2c, MAX8997_REG_BUCK5DVS1 + i,
-				max_buck5, 0x3f);
-	}
-
-	/* Initialize all the DVS related BUCK registers */
-	for (i = 0; i < nr_dvs; i++) {
-		max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
-				max8997->buck1_vol[i],
-				0x3f);
-		max8997_update_reg(i2c, MAX8997_REG_BUCK2DVS1 + i,
-				max8997->buck2_vol[i],
-				0x3f);
-		max8997_update_reg(i2c, MAX8997_REG_BUCK5DVS1 + i,
-				max8997->buck5_vol[i],
-				0x3f);
-	}
-
-	/*
-	 * If buck 1, 2, and 5 do not care DVS GPIO settings, ignore them.
-	 * If at least one of them cares, set gpios.
-	 */
-	if (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
-			pdata->buck5_gpiodvs) {
-
-		if (!gpio_is_valid(pdata->buck125_gpios[0]) ||
-				!gpio_is_valid(pdata->buck125_gpios[1]) ||
-				!gpio_is_valid(pdata->buck125_gpios[2])) {
-			dev_err(&pdev->dev, "GPIO NOT VALID\n");
-			return -EINVAL;
-		}
-
-		ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[0],
-					"MAX8997 SET1");
-		if (ret)
-			return ret;
-
-		ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[1],
-					"MAX8997 SET2");
-		if (ret)
-			return ret;
-
-		ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[2],
-				"MAX8997 SET3");
-		if (ret)
-			return ret;
-
-		gpio_direction_output(pdata->buck125_gpios[0],
-				(max8997->buck125_gpioindex >> 2)
-				& 0x1); /* SET1 */
-		gpio_direction_output(pdata->buck125_gpios[1],
-				(max8997->buck125_gpioindex >> 1)
-				& 0x1); /* SET2 */
-		gpio_direction_output(pdata->buck125_gpios[2],
-				(max8997->buck125_gpioindex >> 0)
-				& 0x1); /* SET3 */
-	}
-
-	/* DVS-GPIO disabled */
-	max8997_update_reg(i2c, MAX8997_REG_BUCK1CTRL, (pdata->buck1_gpiodvs) ?
-			(1 << 1) : (0 << 1), 1 << 1);
-	max8997_update_reg(i2c, MAX8997_REG_BUCK2CTRL, (pdata->buck2_gpiodvs) ?
-			(1 << 1) : (0 << 1), 1 << 1);
-	max8997_update_reg(i2c, MAX8997_REG_BUCK5CTRL, (pdata->buck5_gpiodvs) ?
-			(1 << 1) : (0 << 1), 1 << 1);
-
-	/* Misc Settings */
-	max8997->ramp_delay = 10; /* set 10mV/us, which is the default */
-	max8997_write_reg(i2c, MAX8997_REG_BUCKRAMP, (0xf << 4) | 0x9);
-
-	for (i = 0; i < pdata->num_regulators; i++) {
-		const struct voltage_map_desc *desc;
-		int id = pdata->regulators[i].id;
-
-		desc = reg_voltage_map[id];
-		if (desc) {
-			regulators[id].n_voltages =
-				(desc->max - desc->min) / desc->step + 1;
-		} else if (id == MAX8997_ESAFEOUT1 || id == MAX8997_ESAFEOUT2) {
-			regulators[id].volt_table = safeoutvolt;
-			regulators[id].n_voltages = ARRAY_SIZE(safeoutvolt);
-		} else if (id == MAX8997_CHARGER_CV) {
-			regulators[id].n_voltages = 16;
-		}
-
-		config.dev = max8997->dev;
-		config.init_data = pdata->regulators[i].initdata;
-		config.driver_data = max8997;
-		config.of_node = pdata->regulators[i].reg_node;
-
-		rdev = devm_regulator_register(&pdev->dev, &regulators[id],
-					       &config);
-		if (IS_ERR(rdev)) {
-			dev_err(max8997->dev, "regulator init failed for %d\n",
-					id);
-			return PTR_ERR(rdev);
-		}
-	}
-
-	return 0;
-}
-
-static const struct platform_device_id max8997_pmic_id[] = {
-	{ "max8997-pmic", 0},
-	{ },
-};
-MODULE_DEVICE_TABLE(platform, max8997_pmic_id);
-
-static struct platform_driver max8997_pmic_driver = {
-	.driver = {
-		.name = "max8997-pmic",
-	},
-	.probe = max8997_pmic_probe,
-	.id_table = max8997_pmic_id,
-};
-
-static int __init max8997_pmic_init(void)
-{
-	return platform_driver_register(&max8997_pmic_driver);
-}
-subsys_initcall(max8997_pmic_init);
-
-static void __exit max8997_pmic_cleanup(void)
-{
-	platform_driver_unregister(&max8997_pmic_driver);
-}
-module_exit(max8997_pmic_cleanup);
-
-MODULE_DESCRIPTION("MAXIM 8997/8966 Regulator Driver");
-MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
-MODULE_LICENSE("GPL");