power: move power supply drivers to power/supply

This moves all power supply drivers from drivers/power/
to drivers/power/supply/. The intention is a cleaner
source tree, since drivers/power/ also contains frameworks
unrelated to power supply, like adaptive voltage scaling.

Signed-off-by: Sebastian Reichel <sre@kernel.org>

1 files changed, 0 insertions, 1016 deletions

diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
deleted file mode 100644
index 9c65f134d447..000000000000
--- a/drivers/power/max17042_battery.c
+++ /dev/null
@@ -1,1016 +0,0 @@
-/*
- * Fuel gauge driver for Maxim 17042 / 8966 / 8997
- *  Note that Maxim 8966 and 8997 are mfd and this is its subdevice.
- *
- * Copyright (C) 2011 Samsung Electronics
- * MyungJoo Ham <myungjoo.ham@samsung.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 max17040_battery.c
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/pm.h>
-#include <linux/mod_devicetable.h>
-#include <linux/power_supply.h>
-#include <linux/power/max17042_battery.h>
-#include <linux/of.h>
-#include <linux/regmap.h>
-
-/* Status register bits */
-#define STATUS_POR_BIT         (1 << 1)
-#define STATUS_BST_BIT         (1 << 3)
-#define STATUS_VMN_BIT         (1 << 8)
-#define STATUS_TMN_BIT         (1 << 9)
-#define STATUS_SMN_BIT         (1 << 10)
-#define STATUS_BI_BIT          (1 << 11)
-#define STATUS_VMX_BIT         (1 << 12)
-#define STATUS_TMX_BIT         (1 << 13)
-#define STATUS_SMX_BIT         (1 << 14)
-#define STATUS_BR_BIT          (1 << 15)
-
-/* Interrupt mask bits */
-#define CONFIG_ALRT_BIT_ENBL	(1 << 2)
-#define STATUS_INTR_SOCMIN_BIT	(1 << 10)
-#define STATUS_INTR_SOCMAX_BIT	(1 << 14)
-
-#define VFSOC0_LOCK		0x0000
-#define VFSOC0_UNLOCK		0x0080
-#define MODEL_UNLOCK1	0X0059
-#define MODEL_UNLOCK2	0X00C4
-#define MODEL_LOCK1		0X0000
-#define MODEL_LOCK2		0X0000
-
-#define dQ_ACC_DIV	0x4
-#define dP_ACC_100	0x1900
-#define dP_ACC_200	0x3200
-
-#define MAX17042_VMAX_TOLERANCE		50 /* 50 mV */
-
-struct max17042_chip {
-	struct i2c_client *client;
-	struct regmap *regmap;
-	struct power_supply *battery;
-	enum max170xx_chip_type chip_type;
-	struct max17042_platform_data *pdata;
-	struct work_struct work;
-	int    init_complete;
-};
-
-static enum power_supply_property max17042_battery_props[] = {
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_CYCLE_COUNT,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX,
-	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_VOLTAGE_AVG,
-	POWER_SUPPLY_PROP_VOLTAGE_OCV,
-	POWER_SUPPLY_PROP_CAPACITY,
-	POWER_SUPPLY_PROP_CHARGE_FULL,
-	POWER_SUPPLY_PROP_CHARGE_COUNTER,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
-	POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
-	POWER_SUPPLY_PROP_TEMP_MIN,
-	POWER_SUPPLY_PROP_TEMP_MAX,
-	POWER_SUPPLY_PROP_HEALTH,
-	POWER_SUPPLY_PROP_CURRENT_NOW,
-	POWER_SUPPLY_PROP_CURRENT_AVG,
-};
-
-static int max17042_get_temperature(struct max17042_chip *chip, int *temp)
-{
-	int ret;
-	u32 data;
-	struct regmap *map = chip->regmap;
-
-	ret = regmap_read(map, MAX17042_TEMP, &data);
-	if (ret < 0)
-		return ret;
-
-	*temp = data;
-	/* The value is signed. */
-	if (*temp & 0x8000) {
-		*temp = (0x7fff & ~*temp) + 1;
-		*temp *= -1;
-	}
-
-	/* The value is converted into deci-centigrade scale */
-	/* Units of LSB = 1 / 256 degree Celsius */
-	*temp = *temp * 10 / 256;
-	return 0;
-}
-
-static int max17042_get_battery_health(struct max17042_chip *chip, int *health)
-{
-	int temp, vavg, vbatt, ret;
-	u32 val;
-
-	ret = regmap_read(chip->regmap, MAX17042_AvgVCELL, &val);
-	if (ret < 0)
-		goto health_error;
-
-	/* bits [0-3] unused */
-	vavg = val * 625 / 8;
-	/* Convert to millivolts */
-	vavg /= 1000;
-
-	ret = regmap_read(chip->regmap, MAX17042_VCELL, &val);
-	if (ret < 0)
-		goto health_error;
-
-	/* bits [0-3] unused */
-	vbatt = val * 625 / 8;
-	/* Convert to millivolts */
-	vbatt /= 1000;
-
-	if (vavg < chip->pdata->vmin) {
-		*health = POWER_SUPPLY_HEALTH_DEAD;
-		goto out;
-	}
-
-	if (vbatt > chip->pdata->vmax + MAX17042_VMAX_TOLERANCE) {
-		*health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
-		goto out;
-	}
-
-	ret = max17042_get_temperature(chip, &temp);
-	if (ret < 0)
-		goto health_error;
-
-	if (temp <= chip->pdata->temp_min) {
-		*health = POWER_SUPPLY_HEALTH_COLD;
-		goto out;
-	}
-
-	if (temp >= chip->pdata->temp_max) {
-		*health = POWER_SUPPLY_HEALTH_OVERHEAT;
-		goto out;
-	}
-
-	*health = POWER_SUPPLY_HEALTH_GOOD;
-
-out:
-	return 0;
-
-health_error:
-	return ret;
-}
-
-static int max17042_get_property(struct power_supply *psy,
-			    enum power_supply_property psp,
-			    union power_supply_propval *val)
-{
-	struct max17042_chip *chip = power_supply_get_drvdata(psy);
-	struct regmap *map = chip->regmap;
-	int ret;
-	u32 data;
-
-	if (!chip->init_complete)
-		return -EAGAIN;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_PRESENT:
-		ret = regmap_read(map, MAX17042_STATUS, &data);
-		if (ret < 0)
-			return ret;
-
-		if (data & MAX17042_STATUS_BattAbsent)
-			val->intval = 0;
-		else
-			val->intval = 1;
-		break;
-	case POWER_SUPPLY_PROP_CYCLE_COUNT:
-		ret = regmap_read(map, MAX17042_Cycles, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
-		ret = regmap_read(map, MAX17042_MinMaxVolt, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data >> 8;
-		val->intval *= 20000; /* Units of LSB = 20mV */
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-		if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
-			ret = regmap_read(map, MAX17042_V_empty, &data);
-		else
-			ret = regmap_read(map, MAX17047_V_empty, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data >> 7;
-		val->intval *= 10000; /* Units of LSB = 10mV */
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		ret = regmap_read(map, MAX17042_VCELL, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data * 625 / 8;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
-		ret = regmap_read(map, MAX17042_AvgVCELL, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data * 625 / 8;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_OCV:
-		ret = regmap_read(map, MAX17042_OCVInternal, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data * 625 / 8;
-		break;
-	case POWER_SUPPLY_PROP_CAPACITY:
-		ret = regmap_read(map, MAX17042_RepSOC, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data >> 8;
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_FULL:
-		ret = regmap_read(map, MAX17042_FullCAP, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data * 1000 / 2;
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
-		ret = regmap_read(map, MAX17042_QH, &data);
-		if (ret < 0)
-			return ret;
-
-		val->intval = data * 1000 / 2;
-		break;
-	case POWER_SUPPLY_PROP_TEMP:
-		ret = max17042_get_temperature(chip, &val->intval);
-		if (ret < 0)
-			return ret;
-		break;
-	case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
-		ret = regmap_read(map, MAX17042_TALRT_Th, &data);
-		if (ret < 0)
-			return ret;
-		/* LSB is Alert Minimum. In deci-centigrade */
-		val->intval = (data & 0xff) * 10;
-		break;
-	case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
-		ret = regmap_read(map, MAX17042_TALRT_Th, &data);
-		if (ret < 0)
-			return ret;
-		/* MSB is Alert Maximum. In deci-centigrade */
-		val->intval = (data >> 8) * 10;
-		break;
-	case POWER_SUPPLY_PROP_TEMP_MIN:
-		val->intval = chip->pdata->temp_min;
-		break;
-	case POWER_SUPPLY_PROP_TEMP_MAX:
-		val->intval = chip->pdata->temp_max;
-		break;
-	case POWER_SUPPLY_PROP_HEALTH:
-		ret = max17042_get_battery_health(chip, &val->intval);
-		if (ret < 0)
-			return ret;
-		break;
-	case POWER_SUPPLY_PROP_CURRENT_NOW:
-		if (chip->pdata->enable_current_sense) {
-			ret = regmap_read(map, MAX17042_Current, &data);
-			if (ret < 0)
-				return ret;
-
-			val->intval = data;
-			if (val->intval & 0x8000) {
-				/* Negative */
-				val->intval = ~val->intval & 0x7fff;
-				val->intval++;
-				val->intval *= -1;
-			}
-			val->intval *= 1562500 / chip->pdata->r_sns;
-		} else {
-			return -EINVAL;
-		}
-		break;
-	case POWER_SUPPLY_PROP_CURRENT_AVG:
-		if (chip->pdata->enable_current_sense) {
-			ret = regmap_read(map, MAX17042_AvgCurrent, &data);
-			if (ret < 0)
-				return ret;
-
-			val->intval = data;
-			if (val->intval & 0x8000) {
-				/* Negative */
-				val->intval = ~val->intval & 0x7fff;
-				val->intval++;
-				val->intval *= -1;
-			}
-			val->intval *= 1562500 / chip->pdata->r_sns;
-		} else {
-			return -EINVAL;
-		}
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int max17042_set_property(struct power_supply *psy,
-			    enum power_supply_property psp,
-			    const union power_supply_propval *val)
-{
-	struct max17042_chip *chip = power_supply_get_drvdata(psy);
-	struct regmap *map = chip->regmap;
-	int ret = 0;
-	u32 data;
-	int8_t temp;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
-		ret = regmap_read(map, MAX17042_TALRT_Th, &data);
-		if (ret < 0)
-			return ret;
-
-		/* Input in deci-centigrade, convert to centigrade */
-		temp = val->intval / 10;
-		/* force min < max */
-		if (temp >= (int8_t)(data >> 8))
-			temp = (int8_t)(data >> 8) - 1;
-		/* Write both MAX and MIN ALERT */
-		data = (data & 0xff00) + temp;
-		ret = regmap_write(map, MAX17042_TALRT_Th, data);
-		break;
-	case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
-		ret = regmap_read(map, MAX17042_TALRT_Th, &data);
-		if (ret < 0)
-			return ret;
-
-		/* Input in Deci-Centigrade, convert to centigrade */
-		temp = val->intval / 10;
-		/* force max > min */
-		if (temp <= (int8_t)(data & 0xff))
-			temp = (int8_t)(data & 0xff) + 1;
-		/* Write both MAX and MIN ALERT */
-		data = (data & 0xff) + (temp << 8);
-		ret = regmap_write(map, MAX17042_TALRT_Th, data);
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	return ret;
-}
-
-static int max17042_property_is_writeable(struct power_supply *psy,
-		enum power_supply_property psp)
-{
-	int ret;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_TEMP_ALERT_MIN:
-	case POWER_SUPPLY_PROP_TEMP_ALERT_MAX:
-		ret = 1;
-		break;
-	default:
-		ret = 0;
-	}
-
-	return ret;
-}
-
-static int max17042_write_verify_reg(struct regmap *map, u8 reg, u32 value)
-{
-	int retries = 8;
-	int ret;
-	u32 read_value;
-
-	do {
-		ret = regmap_write(map, reg, value);
-		regmap_read(map, reg, &read_value);
-		if (read_value != value) {
-			ret = -EIO;
-			retries--;
-		}
-	} while (retries && read_value != value);
-
-	if (ret < 0)
-		pr_err("%s: err %d\n", __func__, ret);
-
-	return ret;
-}
-
-static inline void max17042_override_por(struct regmap *map,
-					 u8 reg, u16 value)
-{
-	if (value)
-		regmap_write(map, reg, value);
-}
-
-static inline void max10742_unlock_model(struct max17042_chip *chip)
-{
-	struct regmap *map = chip->regmap;
-
-	regmap_write(map, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
-	regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
-}
-
-static inline void max10742_lock_model(struct max17042_chip *chip)
-{
-	struct regmap *map = chip->regmap;
-
-	regmap_write(map, MAX17042_MLOCKReg1, MODEL_LOCK1);
-	regmap_write(map, MAX17042_MLOCKReg2, MODEL_LOCK2);
-}
-
-static inline void max17042_write_model_data(struct max17042_chip *chip,
-					u8 addr, int size)
-{
-	struct regmap *map = chip->regmap;
-	int i;
-
-	for (i = 0; i < size; i++)
-		regmap_write(map, addr + i,
-			chip->pdata->config_data->cell_char_tbl[i]);
-}
-
-static inline void max17042_read_model_data(struct max17042_chip *chip,
-					u8 addr, u32 *data, int size)
-{
-	struct regmap *map = chip->regmap;
-	int i;
-
-	for (i = 0; i < size; i++)
-		regmap_read(map, addr + i, &data[i]);
-}
-
-static inline int max17042_model_data_compare(struct max17042_chip *chip,
-					u16 *data1, u16 *data2, int size)
-{
-	int i;
-
-	if (memcmp(data1, data2, size)) {
-		dev_err(&chip->client->dev, "%s compare failed\n", __func__);
-		for (i = 0; i < size; i++)
-			dev_info(&chip->client->dev, "0x%x, 0x%x",
-				data1[i], data2[i]);
-		dev_info(&chip->client->dev, "\n");
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static int max17042_init_model(struct max17042_chip *chip)
-{
-	int ret;
-	int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
-	u32 *temp_data;
-
-	temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
-	if (!temp_data)
-		return -ENOMEM;
-
-	max10742_unlock_model(chip);
-	max17042_write_model_data(chip, MAX17042_MODELChrTbl,
-				table_size);
-	max17042_read_model_data(chip, MAX17042_MODELChrTbl, temp_data,
-				table_size);
-
-	ret = max17042_model_data_compare(
-		chip,
-		chip->pdata->config_data->cell_char_tbl,
-		(u16 *)temp_data,
-		table_size);
-
-	max10742_lock_model(chip);
-	kfree(temp_data);
-
-	return ret;
-}
-
-static int max17042_verify_model_lock(struct max17042_chip *chip)
-{
-	int i;
-	int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
-	u32 *temp_data;
-	int ret = 0;
-
-	temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
-	if (!temp_data)
-		return -ENOMEM;
-
-	max17042_read_model_data(chip, MAX17042_MODELChrTbl, temp_data,
-				table_size);
-	for (i = 0; i < table_size; i++)
-		if (temp_data[i])
-			ret = -EINVAL;
-
-	kfree(temp_data);
-	return ret;
-}
-
-static void max17042_write_config_regs(struct max17042_chip *chip)
-{
-	struct max17042_config_data *config = chip->pdata->config_data;
-	struct regmap *map = chip->regmap;
-
-	regmap_write(map, MAX17042_CONFIG, config->config);
-	regmap_write(map, MAX17042_LearnCFG, config->learn_cfg);
-	regmap_write(map, MAX17042_FilterCFG,
-			config->filter_cfg);
-	regmap_write(map, MAX17042_RelaxCFG, config->relax_cfg);
-	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17047 ||
-			chip->chip_type == MAXIM_DEVICE_TYPE_MAX17050)
-		regmap_write(map, MAX17047_FullSOCThr,
-						config->full_soc_thresh);
-}
-
-static void  max17042_write_custom_regs(struct max17042_chip *chip)
-{
-	struct max17042_config_data *config = chip->pdata->config_data;
-	struct regmap *map = chip->regmap;
-
-	max17042_write_verify_reg(map, MAX17042_RCOMP0, config->rcomp0);
-	max17042_write_verify_reg(map, MAX17042_TempCo,	config->tcompc0);
-	max17042_write_verify_reg(map, MAX17042_ICHGTerm, config->ichgt_term);
-	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042) {
-		regmap_write(map, MAX17042_EmptyTempCo,	config->empty_tempco);
-		max17042_write_verify_reg(map, MAX17042_K_empty0,
-					config->kempty0);
-	} else {
-		max17042_write_verify_reg(map, MAX17047_QRTbl00,
-						config->qrtbl00);
-		max17042_write_verify_reg(map, MAX17047_QRTbl10,
-						config->qrtbl10);
-		max17042_write_verify_reg(map, MAX17047_QRTbl20,
-						config->qrtbl20);
-		max17042_write_verify_reg(map, MAX17047_QRTbl30,
-						config->qrtbl30);
-	}
-}
-
-static void max17042_update_capacity_regs(struct max17042_chip *chip)
-{
-	struct max17042_config_data *config = chip->pdata->config_data;
-	struct regmap *map = chip->regmap;
-
-	max17042_write_verify_reg(map, MAX17042_FullCAP,
-				config->fullcap);
-	regmap_write(map, MAX17042_DesignCap, config->design_cap);
-	max17042_write_verify_reg(map, MAX17042_FullCAPNom,
-				config->fullcapnom);
-}
-
-static void max17042_reset_vfsoc0_reg(struct max17042_chip *chip)
-{
-	unsigned int vfSoc;
-	struct regmap *map = chip->regmap;
-
-	regmap_read(map, MAX17042_VFSOC, &vfSoc);
-	regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK);
-	max17042_write_verify_reg(map, MAX17042_VFSOC0, vfSoc);
-	regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_LOCK);
-}
-
-static void max17042_load_new_capacity_params(struct max17042_chip *chip)
-{
-	u32 full_cap0, rep_cap, dq_acc, vfSoc;
-	u32 rem_cap;
-
-	struct max17042_config_data *config = chip->pdata->config_data;
-	struct regmap *map = chip->regmap;
-
-	regmap_read(map, MAX17042_FullCAP0, &full_cap0);
-	regmap_read(map, MAX17042_VFSOC, &vfSoc);
-
-	/* fg_vfSoc needs to shifted by 8 bits to get the
-	 * perc in 1% accuracy, to get the right rem_cap multiply
-	 * full_cap0, fg_vfSoc and devide by 100
-	 */
-	rem_cap = ((vfSoc >> 8) * full_cap0) / 100;
-	max17042_write_verify_reg(map, MAX17042_RemCap, rem_cap);
-
-	rep_cap = rem_cap;
-	max17042_write_verify_reg(map, MAX17042_RepCap, rep_cap);
-
-	/* Write dQ_acc to 200% of Capacity and dP_acc to 200% */
-	dq_acc = config->fullcap / dQ_ACC_DIV;
-	max17042_write_verify_reg(map, MAX17042_dQacc, dq_acc);
-	max17042_write_verify_reg(map, MAX17042_dPacc, dP_ACC_200);
-
-	max17042_write_verify_reg(map, MAX17042_FullCAP,
-			config->fullcap);
-	regmap_write(map, MAX17042_DesignCap,
-			config->design_cap);
-	max17042_write_verify_reg(map, MAX17042_FullCAPNom,
-			config->fullcapnom);
-	/* Update SOC register with new SOC */
-	regmap_write(map, MAX17042_RepSOC, vfSoc);
-}
-
-/*
- * Block write all the override values coming from platform data.
- * This function MUST be called before the POR initialization proceedure
- * specified by maxim.
- */
-static inline void max17042_override_por_values(struct max17042_chip *chip)
-{
-	struct regmap *map = chip->regmap;
-	struct max17042_config_data *config = chip->pdata->config_data;
-
-	max17042_override_por(map, MAX17042_TGAIN, config->tgain);
-	max17042_override_por(map, MAx17042_TOFF, config->toff);
-	max17042_override_por(map, MAX17042_CGAIN, config->cgain);
-	max17042_override_por(map, MAX17042_COFF, config->coff);
-
-	max17042_override_por(map, MAX17042_VALRT_Th, config->valrt_thresh);
-	max17042_override_por(map, MAX17042_TALRT_Th, config->talrt_thresh);
-	max17042_override_por(map, MAX17042_SALRT_Th,
-						config->soc_alrt_thresh);
-	max17042_override_por(map, MAX17042_CONFIG, config->config);
-	max17042_override_por(map, MAX17042_SHDNTIMER, config->shdntimer);
-
-	max17042_override_por(map, MAX17042_DesignCap, config->design_cap);
-	max17042_override_por(map, MAX17042_ICHGTerm, config->ichgt_term);
-
-	max17042_override_por(map, MAX17042_AtRate, config->at_rate);
-	max17042_override_por(map, MAX17042_LearnCFG, config->learn_cfg);
-	max17042_override_por(map, MAX17042_FilterCFG, config->filter_cfg);
-	max17042_override_por(map, MAX17042_RelaxCFG, config->relax_cfg);
-	max17042_override_por(map, MAX17042_MiscCFG, config->misc_cfg);
-	max17042_override_por(map, MAX17042_MaskSOC, config->masksoc);
-
-	max17042_override_por(map, MAX17042_FullCAP, config->fullcap);
-	max17042_override_por(map, MAX17042_FullCAPNom, config->fullcapnom);
-	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
-		max17042_override_por(map, MAX17042_SOC_empty,
-						config->socempty);
-	max17042_override_por(map, MAX17042_LAvg_empty, config->lavg_empty);
-	max17042_override_por(map, MAX17042_dQacc, config->dqacc);
-	max17042_override_por(map, MAX17042_dPacc, config->dpacc);
-
-	if (chip->chip_type == MAXIM_DEVICE_TYPE_MAX17042)
-		max17042_override_por(map, MAX17042_V_empty, config->vempty);
-	else
-		max17042_override_por(map, MAX17047_V_empty, config->vempty);
-	max17042_override_por(map, MAX17042_TempNom, config->temp_nom);
-	max17042_override_por(map, MAX17042_TempLim, config->temp_lim);
-	max17042_override_por(map, MAX17042_FCTC, config->fctc);
-	max17042_override_por(map, MAX17042_RCOMP0, config->rcomp0);
-	max17042_override_por(map, MAX17042_TempCo, config->tcompc0);
-	if (chip->chip_type) {
-		max17042_override_por(map, MAX17042_EmptyTempCo,
-						config->empty_tempco);
-		max17042_override_por(map, MAX17042_K_empty0,
-						config->kempty0);
-	}
-}
-
-static int max17042_init_chip(struct max17042_chip *chip)
-{
-	struct regmap *map = chip->regmap;
-	int ret;
-
-	max17042_override_por_values(chip);
-	/* After Power up, the MAX17042 requires 500mS in order
-	 * to perform signal debouncing and initial SOC reporting
-	 */
-	msleep(500);
-
-	/* Initialize configaration */
-	max17042_write_config_regs(chip);
-
-	/* write cell characterization data */
-	ret = max17042_init_model(chip);
-	if (ret) {
-		dev_err(&chip->client->dev, "%s init failed\n",
-			__func__);
-		return -EIO;
-	}
-
-	ret = max17042_verify_model_lock(chip);
-	if (ret) {
-		dev_err(&chip->client->dev, "%s lock verify failed\n",
-			__func__);
-		return -EIO;
-	}
-	/* write custom parameters */
-	max17042_write_custom_regs(chip);
-
-	/* update capacity params */
-	max17042_update_capacity_regs(chip);
-
-	/* delay must be atleast 350mS to allow VFSOC
-	 * to be calculated from the new configuration
-	 */
-	msleep(350);
-
-	/* reset vfsoc0 reg */
-	max17042_reset_vfsoc0_reg(chip);
-
-	/* load new capacity params */
-	max17042_load_new_capacity_params(chip);
-
-	/* Init complete, Clear the POR bit */
-	regmap_update_bits(map, MAX17042_STATUS, STATUS_POR_BIT, 0x0);
-	return 0;
-}
-
-static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off)
-{
-	struct regmap *map = chip->regmap;
-	u32 soc, soc_tr;
-
-	/* program interrupt thesholds such that we should
-	 * get interrupt for every 'off' perc change in the soc
-	 */
-	regmap_read(map, MAX17042_RepSOC, &soc);
-	soc >>= 8;
-	soc_tr = (soc + off) << 8;
-	soc_tr |= (soc - off);
-	regmap_write(map, MAX17042_SALRT_Th, soc_tr);
-}
-
-static irqreturn_t max17042_thread_handler(int id, void *dev)
-{
-	struct max17042_chip *chip = dev;
-	u32 val;
-
-	regmap_read(chip->regmap, MAX17042_STATUS, &val);
-	if ((val & STATUS_INTR_SOCMIN_BIT) ||
-		(val & STATUS_INTR_SOCMAX_BIT)) {
-		dev_info(&chip->client->dev, "SOC threshold INTR\n");
-		max17042_set_soc_threshold(chip, 1);
-	}
-
-	power_supply_changed(chip->battery);
-	return IRQ_HANDLED;
-}
-
-static void max17042_init_worker(struct work_struct *work)
-{
-	struct max17042_chip *chip = container_of(work,
-				struct max17042_chip, work);
-	int ret;
-
-	/* Initialize registers according to values from the platform data */
-	if (chip->pdata->enable_por_init && chip->pdata->config_data) {
-		ret = max17042_init_chip(chip);
-		if (ret)
-			return;
-	}
-
-	chip->init_complete = 1;
-}
-
-#ifdef CONFIG_OF
-static struct max17042_platform_data *
-max17042_get_pdata(struct device *dev)
-{
-	struct device_node *np = dev->of_node;
-	u32 prop;
-	struct max17042_platform_data *pdata;
-
-	if (!np)
-		return dev->platform_data;
-
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return NULL;
-
-	/*
-	 * Require current sense resistor value to be specified for
-	 * current-sense functionality to be enabled at all.
-	 */
-	if (of_property_read_u32(np, "maxim,rsns-microohm", &prop) == 0) {
-		pdata->r_sns = prop;
-		pdata->enable_current_sense = true;
-	}
-
-	if (of_property_read_s32(np, "maxim,cold-temp", &pdata->temp_min))
-		pdata->temp_min = INT_MIN;
-	if (of_property_read_s32(np, "maxim,over-heat-temp", &pdata->temp_max))
-		pdata->temp_max = INT_MAX;
-	if (of_property_read_s32(np, "maxim,dead-volt", &pdata->vmin))
-		pdata->vmin = INT_MIN;
-	if (of_property_read_s32(np, "maxim,over-volt", &pdata->vmax))
-		pdata->vmax = INT_MAX;
-
-	return pdata;
-}
-#else
-static struct max17042_platform_data *
-max17042_get_pdata(struct device *dev)
-{
-	return dev->platform_data;
-}
-#endif
-
-static const struct regmap_config max17042_regmap_config = {
-	.reg_bits = 8,
-	.val_bits = 16,
-	.val_format_endian = REGMAP_ENDIAN_NATIVE,
-};
-
-static const struct power_supply_desc max17042_psy_desc = {
-	.name		= "max170xx_battery",
-	.type		= POWER_SUPPLY_TYPE_BATTERY,
-	.get_property	= max17042_get_property,
-	.set_property	= max17042_set_property,
-	.property_is_writeable	= max17042_property_is_writeable,
-	.properties	= max17042_battery_props,
-	.num_properties	= ARRAY_SIZE(max17042_battery_props),
-};
-
-static const struct power_supply_desc max17042_no_current_sense_psy_desc = {
-	.name		= "max170xx_battery",
-	.type		= POWER_SUPPLY_TYPE_BATTERY,
-	.get_property	= max17042_get_property,
-	.set_property	= max17042_set_property,
-	.property_is_writeable	= max17042_property_is_writeable,
-	.properties	= max17042_battery_props,
-	.num_properties	= ARRAY_SIZE(max17042_battery_props) - 2,
-};
-
-static int max17042_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
-{
-	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
-	const struct power_supply_desc *max17042_desc = &max17042_psy_desc;
-	struct power_supply_config psy_cfg = {};
-	struct max17042_chip *chip;
-	int ret;
-	int i;
-	u32 val;
-
-	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
-		return -EIO;
-
-	chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
-	if (!chip)
-		return -ENOMEM;
-
-	chip->client = client;
-	chip->regmap = devm_regmap_init_i2c(client, &max17042_regmap_config);
-	if (IS_ERR(chip->regmap)) {
-		dev_err(&client->dev, "Failed to initialize regmap\n");
-		return -EINVAL;
-	}
-
-	chip->pdata = max17042_get_pdata(&client->dev);
-	if (!chip->pdata) {
-		dev_err(&client->dev, "no platform data provided\n");
-		return -EINVAL;
-	}
-
-	i2c_set_clientdata(client, chip);
-	chip->chip_type = id->driver_data;
-	psy_cfg.drv_data = chip;
-
-	/* When current is not measured,
-	 * CURRENT_NOW and CURRENT_AVG properties should be invisible. */
-	if (!chip->pdata->enable_current_sense)
-		max17042_desc = &max17042_no_current_sense_psy_desc;
-
-	if (chip->pdata->r_sns == 0)
-		chip->pdata->r_sns = MAX17042_DEFAULT_SNS_RESISTOR;
-
-	if (chip->pdata->init_data)
-		for (i = 0; i < chip->pdata->num_init_data; i++)
-			regmap_write(chip->regmap,
-					chip->pdata->init_data[i].addr,
-					chip->pdata->init_data[i].data);
-
-	if (!chip->pdata->enable_current_sense) {
-		regmap_write(chip->regmap, MAX17042_CGAIN, 0x0000);
-		regmap_write(chip->regmap, MAX17042_MiscCFG, 0x0003);
-		regmap_write(chip->regmap, MAX17042_LearnCFG, 0x0007);
-	}
-
-	chip->battery = devm_power_supply_register(&client->dev, max17042_desc,
-						   &psy_cfg);
-	if (IS_ERR(chip->battery)) {
-		dev_err(&client->dev, "failed: power supply register\n");
-		return PTR_ERR(chip->battery);
-	}
-
-	if (client->irq) {
-		ret = devm_request_threaded_irq(&client->dev, client->irq,
-						NULL,
-						max17042_thread_handler,
-						IRQF_TRIGGER_FALLING |
-						IRQF_ONESHOT,
-						chip->battery->desc->name,
-						chip);
-		if (!ret) {
-			regmap_update_bits(chip->regmap, MAX17042_CONFIG,
-					CONFIG_ALRT_BIT_ENBL,
-					CONFIG_ALRT_BIT_ENBL);
-			max17042_set_soc_threshold(chip, 1);
-		} else {
-			client->irq = 0;
-			dev_err(&client->dev, "%s(): cannot get IRQ\n",
-				__func__);
-		}
-	}
-
-	regmap_read(chip->regmap, MAX17042_STATUS, &val);
-	if (val & STATUS_POR_BIT) {
-		INIT_WORK(&chip->work, max17042_init_worker);
-		schedule_work(&chip->work);
-	} else {
-		chip->init_complete = 1;
-	}
-
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int max17042_suspend(struct device *dev)
-{
-	struct max17042_chip *chip = dev_get_drvdata(dev);
-
-	/*
-	 * disable the irq and enable irq_wake
-	 * capability to the interrupt line.
-	 */
-	if (chip->client->irq) {
-		disable_irq(chip->client->irq);
-		enable_irq_wake(chip->client->irq);
-	}
-
-	return 0;
-}
-
-static int max17042_resume(struct device *dev)
-{
-	struct max17042_chip *chip = dev_get_drvdata(dev);
-
-	if (chip->client->irq) {
-		disable_irq_wake(chip->client->irq);
-		enable_irq(chip->client->irq);
-		/* re-program the SOC thresholds to 1% change */
-		max17042_set_soc_threshold(chip, 1);
-	}
-
-	return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(max17042_pm_ops, max17042_suspend,
-			max17042_resume);
-
-#ifdef CONFIG_OF
-static const struct of_device_id max17042_dt_match[] = {
-	{ .compatible = "maxim,max17042" },
-	{ .compatible = "maxim,max17047" },
-	{ .compatible = "maxim,max17050" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, max17042_dt_match);
-#endif
-
-static const struct i2c_device_id max17042_id[] = {
-	{ "max17042", MAXIM_DEVICE_TYPE_MAX17042 },
-	{ "max17047", MAXIM_DEVICE_TYPE_MAX17047 },
-	{ "max17050", MAXIM_DEVICE_TYPE_MAX17050 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, max17042_id);
-
-static struct i2c_driver max17042_i2c_driver = {
-	.driver	= {
-		.name	= "max17042",
-		.of_match_table = of_match_ptr(max17042_dt_match),
-		.pm	= &max17042_pm_ops,
-	},
-	.probe		= max17042_probe,
-	.id_table	= max17042_id,
-};
-module_i2c_driver(max17042_i2c_driver);
-
-MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
-MODULE_DESCRIPTION("MAX17042 Fuel Gauge");
-MODULE_LICENSE("GPL");