Linux-libre 4.4-gnupck-4.4-gnu

1 files changed, 0 insertions, 1129 deletions

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
deleted file mode 100644
index 8287261fd..000000000
--- a/drivers/power/bq27x00_battery.c
+++ /dev/null
@@ -1,1129 +0,0 @@
-/*
- * BQ27x00 battery driver
- *
- * Copyright (C) 2008 Rodolfo Giometti <giometti@linux.it>
- * Copyright (C) 2008 Eurotech S.p.A. <info@eurotech.it>
- * Copyright (C) 2010-2011 Lars-Peter Clausen <lars@metafoo.de>
- * Copyright (C) 2011 Pali Rohár <pali.rohar@gmail.com>
- *
- * Based on a previous work by Copyright (C) 2008 Texas Instruments, Inc.
- *
- * This package 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.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Datasheets:
- * http://focus.ti.com/docs/prod/folders/print/bq27000.html
- * http://focus.ti.com/docs/prod/folders/print/bq27500.html
- * http://www.ti.com/product/bq27425-g1
- * http://www.ti.com/product/BQ27742-G1
- * http://www.ti.com/product/BQ27510-G3
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/param.h>
-#include <linux/jiffies.h>
-#include <linux/workqueue.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/power_supply.h>
-#include <linux/idr.h>
-#include <linux/i2c.h>
-#include <linux/slab.h>
-#include <asm/unaligned.h>
-
-#include <linux/power/bq27x00_battery.h>
-
-#define DRIVER_VERSION		"1.2.0"
-
-#define BQ27XXX_MANUFACTURER	"Texas Instruments"
-
-#define BQ27x00_REG_TEMP	0x06
-#define BQ27x00_REG_VOLT	0x08
-#define BQ27x00_REG_AI		0x14
-#define BQ27x00_REG_FLAGS	0x0A
-#define BQ27x00_REG_TTE		0x16
-#define BQ27x00_REG_TTF		0x18
-#define BQ27x00_REG_TTECP	0x26
-#define BQ27x00_REG_NAC		0x0C /* Nominal available capacity */
-#define BQ27x00_REG_LMD		0x12 /* Last measured discharge */
-#define BQ27x00_REG_CYCT	0x2A /* Cycle count total */
-#define BQ27x00_REG_AE		0x22 /* Available energy */
-#define BQ27x00_POWER_AVG	0x24
-
-#define BQ27000_REG_RSOC	0x0B /* Relative State-of-Charge */
-#define BQ27000_REG_ILMD	0x76 /* Initial last measured discharge */
-#define BQ27000_FLAG_EDVF	BIT(0) /* Final End-of-Discharge-Voltage flag */
-#define BQ27000_FLAG_EDV1	BIT(1) /* First End-of-Discharge-Voltage flag */
-#define BQ27000_FLAG_CI		BIT(4) /* Capacity Inaccurate flag */
-#define BQ27000_FLAG_FC		BIT(5)
-#define BQ27000_FLAG_CHGS	BIT(7) /* Charge state flag */
-
-#define BQ27500_REG_SOC		0x2C
-#define BQ27500_REG_DCAP	0x3C /* Design capacity */
-#define BQ27500_FLAG_DSC	BIT(0)
-#define BQ27500_FLAG_SOCF	BIT(1) /* State-of-Charge threshold final */
-#define BQ27500_FLAG_SOC1	BIT(2) /* State-of-Charge threshold 1 */
-#define BQ27500_FLAG_FC		BIT(9)
-#define BQ27500_FLAG_OTC	BIT(15)
-
-#define BQ27742_POWER_AVG	0x76
-
-#define BQ27510_REG_SOC		0x20
-#define BQ27510_REG_DCAP	0x2E /* Design capacity */
-#define BQ27510_REG_CYCT	0x1E /* Cycle count total */
-
-/* bq27425 register addresses are same as bq27x00 addresses minus 4 */
-#define BQ27425_REG_OFFSET	0x04
-#define BQ27425_REG_SOC		(0x1C + BQ27425_REG_OFFSET)
-#define BQ27425_REG_DCAP	(0x3C + BQ27425_REG_OFFSET)
-
-#define BQ27000_RS			20 /* Resistor sense */
-#define BQ27x00_POWER_CONSTANT		(256 * 29200 / 1000)
-
-struct bq27x00_device_info;
-struct bq27x00_access_methods {
-	int (*read)(struct bq27x00_device_info *di, u8 reg, bool single);
-};
-
-enum bq27x00_chip { BQ27000, BQ27500, BQ27425, BQ27742, BQ27510};
-
-struct bq27x00_reg_cache {
-	int temperature;
-	int time_to_empty;
-	int time_to_empty_avg;
-	int time_to_full;
-	int charge_full;
-	int cycle_count;
-	int capacity;
-	int energy;
-	int flags;
-	int power_avg;
-	int health;
-};
-
-struct bq27x00_device_info {
-	struct device		*dev;
-	int			id;
-	enum bq27x00_chip	chip;
-
-	struct bq27x00_reg_cache cache;
-	int charge_design_full;
-
-	unsigned long last_update;
-	struct delayed_work work;
-
-	struct power_supply	*bat;
-
-	struct bq27x00_access_methods bus;
-
-	struct mutex lock;
-};
-
-static enum power_supply_property bq27x00_battery_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_CURRENT_NOW,
-	POWER_SUPPLY_PROP_CAPACITY,
-	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
-	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
-	POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_CHARGE_FULL,
-	POWER_SUPPLY_PROP_CHARGE_NOW,
-	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
-	POWER_SUPPLY_PROP_CYCLE_COUNT,
-	POWER_SUPPLY_PROP_ENERGY_NOW,
-	POWER_SUPPLY_PROP_POWER_AVG,
-	POWER_SUPPLY_PROP_HEALTH,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27425_battery_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_CURRENT_NOW,
-	POWER_SUPPLY_PROP_CAPACITY,
-	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_CHARGE_FULL,
-	POWER_SUPPLY_PROP_CHARGE_NOW,
-	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27742_battery_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_CURRENT_NOW,
-	POWER_SUPPLY_PROP_CAPACITY,
-	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_CHARGE_FULL,
-	POWER_SUPPLY_PROP_CHARGE_NOW,
-	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
-	POWER_SUPPLY_PROP_CYCLE_COUNT,
-	POWER_SUPPLY_PROP_POWER_AVG,
-	POWER_SUPPLY_PROP_HEALTH,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27510_battery_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_CURRENT_NOW,
-	POWER_SUPPLY_PROP_CAPACITY,
-	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_CHARGE_FULL,
-	POWER_SUPPLY_PROP_CHARGE_NOW,
-	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
-	POWER_SUPPLY_PROP_CYCLE_COUNT,
-	POWER_SUPPLY_PROP_POWER_AVG,
-	POWER_SUPPLY_PROP_HEALTH,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static unsigned int poll_interval = 360;
-module_param(poll_interval, uint, 0644);
-MODULE_PARM_DESC(poll_interval,
-		 "battery poll interval in seconds - 0 disables polling");
-
-/*
- * Common code for BQ27x00 devices
- */
-
-static inline int bq27x00_read(struct bq27x00_device_info *di, u8 reg,
-			       bool single)
-{
-	if (di->chip == BQ27425)
-		return di->bus.read(di, reg - BQ27425_REG_OFFSET, single);
-	return di->bus.read(di, reg, single);
-}
-
-/*
- * Higher versions of the chip like BQ27425 and BQ27500
- * differ from BQ27000 and BQ27200 in calculation of certain
- * parameters. Hence we need to check for the chip type.
- */
-static bool bq27xxx_is_chip_version_higher(struct bq27x00_device_info *di)
-{
-	if (di->chip == BQ27425 || di->chip == BQ27500 || di->chip == BQ27742
-	    || di->chip == BQ27510)
-		return true;
-	return false;
-}
-
-/*
- * Return the battery Relative State-of-Charge
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_read_rsoc(struct bq27x00_device_info *di)
-{
-	int rsoc;
-
-	if (di->chip == BQ27500 || di->chip == BQ27742)
-		rsoc = bq27x00_read(di, BQ27500_REG_SOC, false);
-	else if (di->chip == BQ27510)
-		rsoc = bq27x00_read(di, BQ27510_REG_SOC, false);
-	else if (di->chip == BQ27425)
-		rsoc = bq27x00_read(di, BQ27425_REG_SOC, false);
-	else
-		rsoc = bq27x00_read(di, BQ27000_REG_RSOC, true);
-
-	if (rsoc < 0)
-		dev_dbg(di->dev, "error reading relative State-of-Charge\n");
-
-	return rsoc;
-}
-
-/*
- * Return a battery charge value in µAh
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_read_charge(struct bq27x00_device_info *di, u8 reg)
-{
-	int charge;
-
-	charge = bq27x00_read(di, reg, false);
-	if (charge < 0) {
-		dev_dbg(di->dev, "error reading charge register %02x: %d\n",
-			reg, charge);
-		return charge;
-	}
-
-	if (bq27xxx_is_chip_version_higher(di))
-		charge *= 1000;
-	else
-		charge = charge * 3570 / BQ27000_RS;
-
-	return charge;
-}
-
-/*
- * Return the battery Nominal available capaciy in µAh
- * Or < 0 if something fails.
- */
-static inline int bq27x00_battery_read_nac(struct bq27x00_device_info *di)
-{
-	int flags;
-	bool is_bq27500 = di->chip == BQ27500;
-	bool is_bq27742 = di->chip == BQ27742;
-	bool is_higher = bq27xxx_is_chip_version_higher(di);
-	bool flags_1b = !(is_bq27500 || is_bq27742);
-
-	flags = bq27x00_read(di, BQ27x00_REG_FLAGS, flags_1b);
-	if (flags >= 0 && !is_higher && (flags & BQ27000_FLAG_CI))
-		return -ENODATA;
-
-	return bq27x00_battery_read_charge(di, BQ27x00_REG_NAC);
-}
-
-/*
- * Return the battery Last measured discharge in µAh
- * Or < 0 if something fails.
- */
-static inline int bq27x00_battery_read_lmd(struct bq27x00_device_info *di)
-{
-	return bq27x00_battery_read_charge(di, BQ27x00_REG_LMD);
-}
-
-/*
- * Return the battery Initial last measured discharge in µAh
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_read_ilmd(struct bq27x00_device_info *di)
-{
-	int ilmd;
-
-	if (bq27xxx_is_chip_version_higher(di)) {
-		if (di->chip == BQ27425)
-			ilmd = bq27x00_read(di, BQ27425_REG_DCAP, false);
-		else if (di->chip == BQ27510)
-			ilmd = bq27x00_read(di, BQ27510_REG_DCAP, false);
-		else
-			ilmd = bq27x00_read(di, BQ27500_REG_DCAP, false);
-	} else {
-		ilmd = bq27x00_read(di, BQ27000_REG_ILMD, true);
-	}
-
-	if (ilmd < 0) {
-		dev_dbg(di->dev, "error reading initial last measured discharge\n");
-		return ilmd;
-	}
-
-	if (bq27xxx_is_chip_version_higher(di))
-		ilmd *= 1000;
-	else
-		ilmd = ilmd * 256 * 3570 / BQ27000_RS;
-
-	return ilmd;
-}
-
-/*
- * Return the battery Available energy in µWh
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_read_energy(struct bq27x00_device_info *di)
-{
-	int ae;
-
-	ae = bq27x00_read(di, BQ27x00_REG_AE, false);
-	if (ae < 0) {
-		dev_dbg(di->dev, "error reading available energy\n");
-		return ae;
-	}
-
-	if (di->chip == BQ27500)
-		ae *= 1000;
-	else
-		ae = ae * 29200 / BQ27000_RS;
-
-	return ae;
-}
-
-/*
- * Return the battery temperature in tenths of degree Kelvin
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_read_temperature(struct bq27x00_device_info *di)
-{
-	int temp;
-
-	temp = bq27x00_read(di, BQ27x00_REG_TEMP, false);
-	if (temp < 0) {
-		dev_err(di->dev, "error reading temperature\n");
-		return temp;
-	}
-
-	if (!bq27xxx_is_chip_version_higher(di))
-		temp = 5 * temp / 2;
-
-	return temp;
-}
-
-/*
- * Return the battery Cycle count total
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_read_cyct(struct bq27x00_device_info *di)
-{
-	int cyct;
-
-	if (di->chip == BQ27510)
-		cyct = bq27x00_read(di, BQ27510_REG_CYCT, false);
-	else
-		cyct = bq27x00_read(di, BQ27x00_REG_CYCT, false);
-	if (cyct < 0)
-		dev_err(di->dev, "error reading cycle count total\n");
-
-	return cyct;
-}
-
-/*
- * Read a time register.
- * Return < 0 if something fails.
- */
-static int bq27x00_battery_read_time(struct bq27x00_device_info *di, u8 reg)
-{
-	int tval;
-
-	tval = bq27x00_read(di, reg, false);
-	if (tval < 0) {
-		dev_dbg(di->dev, "error reading time register %02x: %d\n",
-			reg, tval);
-		return tval;
-	}
-
-	if (tval == 65535)
-		return -ENODATA;
-
-	return tval * 60;
-}
-
-/*
- * Read a power avg register.
- * Return < 0 if something fails.
- */
-static int bq27x00_battery_read_pwr_avg(struct bq27x00_device_info *di, u8 reg)
-{
-	int tval;
-
-	tval = bq27x00_read(di, reg, false);
-	if (tval < 0) {
-		dev_err(di->dev, "error reading power avg rgister  %02x: %d\n",
-			reg, tval);
-		return tval;
-	}
-
-	if (di->chip == BQ27500)
-		return tval;
-	else
-		return (tval * BQ27x00_POWER_CONSTANT) / BQ27000_RS;
-}
-
-/*
- * Read flag register.
- * Return < 0 if something fails.
- */
-static int bq27x00_battery_read_health(struct bq27x00_device_info *di)
-{
-	int tval;
-
-	tval = bq27x00_read(di, BQ27x00_REG_FLAGS, false);
-	if (tval < 0) {
-		dev_err(di->dev, "error reading flag register:%d\n", tval);
-		return tval;
-	}
-
-	if (di->chip == BQ27500) {
-		if (tval & BQ27500_FLAG_SOCF)
-			tval = POWER_SUPPLY_HEALTH_DEAD;
-		else if (tval & BQ27500_FLAG_OTC)
-			tval = POWER_SUPPLY_HEALTH_OVERHEAT;
-		else
-			tval = POWER_SUPPLY_HEALTH_GOOD;
-		return tval;
-	} else if (di->chip == BQ27510) {
-		if (tval & BQ27500_FLAG_OTC)
-			return POWER_SUPPLY_HEALTH_OVERHEAT;
-		return POWER_SUPPLY_HEALTH_GOOD;
-	} else {
-		if (tval & BQ27000_FLAG_EDV1)
-			tval = POWER_SUPPLY_HEALTH_DEAD;
-		else
-			tval = POWER_SUPPLY_HEALTH_GOOD;
-		return tval;
-	}
-
-	return -1;
-}
-
-static void bq27x00_update(struct bq27x00_device_info *di)
-{
-	struct bq27x00_reg_cache cache = {0, };
-	bool is_bq27500 = di->chip == BQ27500;
-	bool is_bq27510 = di->chip == BQ27510;
-	bool is_bq27425 = di->chip == BQ27425;
-	bool is_bq27742 = di->chip == BQ27742;
-	bool flags_1b = !(is_bq27500 || is_bq27742);
-
-	cache.flags = bq27x00_read(di, BQ27x00_REG_FLAGS, flags_1b);
-	if ((cache.flags & 0xff) == 0xff)
-		/* read error */
-		cache.flags = -1;
-	if (cache.flags >= 0) {
-		if (!is_bq27500 && !is_bq27425 && !is_bq27742 && !is_bq27510
-				&& (cache.flags & BQ27000_FLAG_CI)) {
-			dev_info(di->dev, "battery is not calibrated! ignoring capacity values\n");
-			cache.capacity = -ENODATA;
-			cache.energy = -ENODATA;
-			cache.time_to_empty = -ENODATA;
-			cache.time_to_empty_avg = -ENODATA;
-			cache.time_to_full = -ENODATA;
-			cache.charge_full = -ENODATA;
-			cache.health = -ENODATA;
-		} else {
-			cache.capacity = bq27x00_battery_read_rsoc(di);
-			if (is_bq27742 || is_bq27510)
-				cache.time_to_empty =
-					bq27x00_battery_read_time(di,
-							BQ27x00_REG_TTE);
-			else if (!is_bq27425) {
-				cache.energy = bq27x00_battery_read_energy(di);
-				cache.time_to_empty =
-					bq27x00_battery_read_time(di,
-							BQ27x00_REG_TTE);
-				cache.time_to_empty_avg =
-					bq27x00_battery_read_time(di,
-							BQ27x00_REG_TTECP);
-				cache.time_to_full =
-					bq27x00_battery_read_time(di,
-							BQ27x00_REG_TTF);
-			}
-			cache.charge_full = bq27x00_battery_read_lmd(di);
-			cache.health = bq27x00_battery_read_health(di);
-		}
-		cache.temperature = bq27x00_battery_read_temperature(di);
-		if (!is_bq27425)
-			cache.cycle_count = bq27x00_battery_read_cyct(di);
-		if (is_bq27742)
-			cache.power_avg =
-				bq27x00_battery_read_pwr_avg(di,
-						BQ27742_POWER_AVG);
-		else
-			cache.power_avg =
-				bq27x00_battery_read_pwr_avg(di,
-						BQ27x00_POWER_AVG);
-
-		/* We only have to read charge design full once */
-		if (di->charge_design_full <= 0)
-			di->charge_design_full = bq27x00_battery_read_ilmd(di);
-	}
-
-	if (di->cache.capacity != cache.capacity)
-		power_supply_changed(di->bat);
-
-	if (memcmp(&di->cache, &cache, sizeof(cache)) != 0)
-		di->cache = cache;
-
-	di->last_update = jiffies;
-}
-
-static void bq27x00_battery_poll(struct work_struct *work)
-{
-	struct bq27x00_device_info *di =
-		container_of(work, struct bq27x00_device_info, work.work);
-
-	bq27x00_update(di);
-
-	if (poll_interval > 0) {
-		/* The timer does not have to be accurate. */
-		set_timer_slack(&di->work.timer, poll_interval * HZ / 4);
-		schedule_delayed_work(&di->work, poll_interval * HZ);
-	}
-}
-
-/*
- * Return the battery average current in µA
- * Note that current can be negative signed as well
- * Or 0 if something fails.
- */
-static int bq27x00_battery_current(struct bq27x00_device_info *di,
-				   union power_supply_propval *val)
-{
-	int curr;
-	int flags;
-
-	curr = bq27x00_read(di, BQ27x00_REG_AI, false);
-	if (curr < 0) {
-		dev_err(di->dev, "error reading current\n");
-		return curr;
-	}
-
-	if (bq27xxx_is_chip_version_higher(di)) {
-		/* bq27500 returns signed value */
-		val->intval = (int)((s16)curr) * 1000;
-	} else {
-		flags = bq27x00_read(di, BQ27x00_REG_FLAGS, false);
-		if (flags & BQ27000_FLAG_CHGS) {
-			dev_dbg(di->dev, "negative current!\n");
-			curr = -curr;
-		}
-
-		val->intval = curr * 3570 / BQ27000_RS;
-	}
-
-	return 0;
-}
-
-static int bq27x00_battery_status(struct bq27x00_device_info *di,
-				  union power_supply_propval *val)
-{
-	int status;
-
-	if (bq27xxx_is_chip_version_higher(di)) {
-		if (di->cache.flags & BQ27500_FLAG_FC)
-			status = POWER_SUPPLY_STATUS_FULL;
-		else if (di->cache.flags & BQ27500_FLAG_DSC)
-			status = POWER_SUPPLY_STATUS_DISCHARGING;
-		else
-			status = POWER_SUPPLY_STATUS_CHARGING;
-	} else {
-		if (di->cache.flags & BQ27000_FLAG_FC)
-			status = POWER_SUPPLY_STATUS_FULL;
-		else if (di->cache.flags & BQ27000_FLAG_CHGS)
-			status = POWER_SUPPLY_STATUS_CHARGING;
-		else if (power_supply_am_i_supplied(di->bat))
-			status = POWER_SUPPLY_STATUS_NOT_CHARGING;
-		else
-			status = POWER_SUPPLY_STATUS_DISCHARGING;
-	}
-
-	val->intval = status;
-
-	return 0;
-}
-
-static int bq27x00_battery_capacity_level(struct bq27x00_device_info *di,
-					  union power_supply_propval *val)
-{
-	int level;
-
-	if (bq27xxx_is_chip_version_higher(di)) {
-		if (di->cache.flags & BQ27500_FLAG_FC)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
-		else if (di->cache.flags & BQ27500_FLAG_SOC1)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
-		else if (di->cache.flags & BQ27500_FLAG_SOCF)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
-		else
-			level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
-	} else {
-		if (di->cache.flags & BQ27000_FLAG_FC)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
-		else if (di->cache.flags & BQ27000_FLAG_EDV1)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
-		else if (di->cache.flags & BQ27000_FLAG_EDVF)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
-		else
-			level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
-	}
-
-	val->intval = level;
-
-	return 0;
-}
-
-/*
- * Return the battery Voltage in millivolts
- * Or < 0 if something fails.
- */
-static int bq27x00_battery_voltage(struct bq27x00_device_info *di,
-				   union power_supply_propval *val)
-{
-	int volt;
-
-	volt = bq27x00_read(di, BQ27x00_REG_VOLT, false);
-	if (volt < 0) {
-		dev_err(di->dev, "error reading voltage\n");
-		return volt;
-	}
-
-	val->intval = volt * 1000;
-
-	return 0;
-}
-
-static int bq27x00_simple_value(int value,
-				union power_supply_propval *val)
-{
-	if (value < 0)
-		return value;
-
-	val->intval = value;
-
-	return 0;
-}
-
-static int bq27x00_battery_get_property(struct power_supply *psy,
-					enum power_supply_property psp,
-					union power_supply_propval *val)
-{
-	int ret = 0;
-	struct bq27x00_device_info *di = power_supply_get_drvdata(psy);
-
-	mutex_lock(&di->lock);
-	if (time_is_before_jiffies(di->last_update + 5 * HZ)) {
-		cancel_delayed_work_sync(&di->work);
-		bq27x00_battery_poll(&di->work.work);
-	}
-	mutex_unlock(&di->lock);
-
-	if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0)
-		return -ENODEV;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		ret = bq27x00_battery_status(di, val);
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		ret = bq27x00_battery_voltage(di, val);
-		break;
-	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = di->cache.flags < 0 ? 0 : 1;
-		break;
-	case POWER_SUPPLY_PROP_CURRENT_NOW:
-		ret = bq27x00_battery_current(di, val);
-		break;
-	case POWER_SUPPLY_PROP_CAPACITY:
-		ret = bq27x00_simple_value(di->cache.capacity, val);
-		break;
-	case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
-		ret = bq27x00_battery_capacity_level(di, val);
-		break;
-	case POWER_SUPPLY_PROP_TEMP:
-		ret = bq27x00_simple_value(di->cache.temperature, val);
-		if (ret == 0)
-			val->intval -= 2731;
-		break;
-	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
-		ret = bq27x00_simple_value(di->cache.time_to_empty, val);
-		break;
-	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
-		ret = bq27x00_simple_value(di->cache.time_to_empty_avg, val);
-		break;
-	case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
-		ret = bq27x00_simple_value(di->cache.time_to_full, val);
-		break;
-	case POWER_SUPPLY_PROP_TECHNOLOGY:
-		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_NOW:
-		ret = bq27x00_simple_value(bq27x00_battery_read_nac(di), val);
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_FULL:
-		ret = bq27x00_simple_value(di->cache.charge_full, val);
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
-		ret = bq27x00_simple_value(di->charge_design_full, val);
-		break;
-	case POWER_SUPPLY_PROP_CYCLE_COUNT:
-		ret = bq27x00_simple_value(di->cache.cycle_count, val);
-		break;
-	case POWER_SUPPLY_PROP_ENERGY_NOW:
-		ret = bq27x00_simple_value(di->cache.energy, val);
-		break;
-	case POWER_SUPPLY_PROP_POWER_AVG:
-		ret = bq27x00_simple_value(di->cache.power_avg, val);
-		break;
-	case POWER_SUPPLY_PROP_HEALTH:
-		ret = bq27x00_simple_value(di->cache.health, val);
-		break;
-	case POWER_SUPPLY_PROP_MANUFACTURER:
-		val->strval = BQ27XXX_MANUFACTURER;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return ret;
-}
-
-static void bq27x00_external_power_changed(struct power_supply *psy)
-{
-	struct bq27x00_device_info *di = power_supply_get_drvdata(psy);
-
-	cancel_delayed_work_sync(&di->work);
-	schedule_delayed_work(&di->work, 0);
-}
-
-static int bq27x00_powersupply_init(struct bq27x00_device_info *di,
-				    const char *name)
-{
-	int ret;
-	struct power_supply_desc *psy_desc;
-	struct power_supply_config psy_cfg = { .drv_data = di, };
-
-	psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);
-	if (!psy_desc)
-		return -ENOMEM;
-
-	psy_desc->name = name;
-	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
-	if (di->chip == BQ27425) {
-		psy_desc->properties = bq27425_battery_props;
-		psy_desc->num_properties = ARRAY_SIZE(bq27425_battery_props);
-	} else if (di->chip == BQ27742) {
-		psy_desc->properties = bq27742_battery_props;
-		psy_desc->num_properties = ARRAY_SIZE(bq27742_battery_props);
-	} else if (di->chip == BQ27510) {
-		psy_desc->properties = bq27510_battery_props;
-		psy_desc->num_properties = ARRAY_SIZE(bq27510_battery_props);
-	} else {
-		psy_desc->properties = bq27x00_battery_props;
-		psy_desc->num_properties = ARRAY_SIZE(bq27x00_battery_props);
-	}
-	psy_desc->get_property = bq27x00_battery_get_property;
-	psy_desc->external_power_changed = bq27x00_external_power_changed;
-
-	INIT_DELAYED_WORK(&di->work, bq27x00_battery_poll);
-	mutex_init(&di->lock);
-
-	di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);
-	if (IS_ERR(di->bat)) {
-		ret = PTR_ERR(di->bat);
-		dev_err(di->dev, "failed to register battery: %d\n", ret);
-		return ret;
-	}
-
-	dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION);
-
-	bq27x00_update(di);
-
-	return 0;
-}
-
-static void bq27x00_powersupply_unregister(struct bq27x00_device_info *di)
-{
-	/*
-	 * power_supply_unregister call bq27x00_battery_get_property which
-	 * call bq27x00_battery_poll.
-	 * Make sure that bq27x00_battery_poll will not call
-	 * schedule_delayed_work again after unregister (which cause OOPS).
-	 */
-	poll_interval = 0;
-
-	cancel_delayed_work_sync(&di->work);
-
-	power_supply_unregister(di->bat);
-
-	mutex_destroy(&di->lock);
-}
-
-/* i2c specific code */
-#ifdef CONFIG_BATTERY_BQ27X00_I2C
-
-/* If the system has several batteries we need a different name for each
- * of them...
- */
-static DEFINE_IDR(battery_id);
-static DEFINE_MUTEX(battery_mutex);
-
-static int bq27x00_read_i2c(struct bq27x00_device_info *di, u8 reg, bool single)
-{
-	struct i2c_client *client = to_i2c_client(di->dev);
-	struct i2c_msg msg[2];
-	unsigned char data[2];
-	int ret;
-
-	if (!client->adapter)
-		return -ENODEV;
-
-	msg[0].addr = client->addr;
-	msg[0].flags = 0;
-	msg[0].buf = &reg;
-	msg[0].len = sizeof(reg);
-	msg[1].addr = client->addr;
-	msg[1].flags = I2C_M_RD;
-	msg[1].buf = data;
-	if (single)
-		msg[1].len = 1;
-	else
-		msg[1].len = 2;
-
-	ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
-	if (ret < 0)
-		return ret;
-
-	if (!single)
-		ret = get_unaligned_le16(data);
-	else
-		ret = data[0];
-
-	return ret;
-}
-
-static int bq27x00_battery_probe(struct i2c_client *client,
-				 const struct i2c_device_id *id)
-{
-	char *name;
-	struct bq27x00_device_info *di;
-	int num;
-	int retval = 0;
-
-	/* Get new ID for the new battery device */
-	mutex_lock(&battery_mutex);
-	num = idr_alloc(&battery_id, client, 0, 0, GFP_KERNEL);
-	mutex_unlock(&battery_mutex);
-	if (num < 0)
-		return num;
-
-	name = devm_kasprintf(&client->dev, GFP_KERNEL, "%s-%d", id->name, num);
-	if (!name) {
-		retval = -ENOMEM;
-		goto batt_failed;
-	}
-
-	di = devm_kzalloc(&client->dev, sizeof(*di), GFP_KERNEL);
-	if (!di) {
-		retval = -ENOMEM;
-		goto batt_failed;
-	}
-
-	di->id = num;
-	di->dev = &client->dev;
-	di->chip = id->driver_data;
-	di->bus.read = &bq27x00_read_i2c;
-
-	retval = bq27x00_powersupply_init(di, name);
-	if (retval)
-		goto batt_failed;
-
-	i2c_set_clientdata(client, di);
-
-	return 0;
-
-batt_failed:
-	mutex_lock(&battery_mutex);
-	idr_remove(&battery_id, num);
-	mutex_unlock(&battery_mutex);
-
-	return retval;
-}
-
-static int bq27x00_battery_remove(struct i2c_client *client)
-{
-	struct bq27x00_device_info *di = i2c_get_clientdata(client);
-
-	bq27x00_powersupply_unregister(di);
-
-	mutex_lock(&battery_mutex);
-	idr_remove(&battery_id, di->id);
-	mutex_unlock(&battery_mutex);
-
-	return 0;
-}
-
-static const struct i2c_device_id bq27x00_id[] = {
-	{ "bq27200", BQ27000 },	/* bq27200 is same as bq27000, but with i2c */
-	{ "bq27500", BQ27500 },
-	{ "bq27425", BQ27425 },
-	{ "bq27742", BQ27742 },
-	{ "bq27510", BQ27510 },
-	{},
-};
-MODULE_DEVICE_TABLE(i2c, bq27x00_id);
-
-static struct i2c_driver bq27x00_battery_driver = {
-	.driver = {
-		.name = "bq27x00-battery",
-	},
-	.probe = bq27x00_battery_probe,
-	.remove = bq27x00_battery_remove,
-	.id_table = bq27x00_id,
-};
-
-static inline int bq27x00_battery_i2c_init(void)
-{
-	int ret = i2c_add_driver(&bq27x00_battery_driver);
-
-	if (ret)
-		pr_err("Unable to register BQ27x00 i2c driver\n");
-
-	return ret;
-}
-
-static inline void bq27x00_battery_i2c_exit(void)
-{
-	i2c_del_driver(&bq27x00_battery_driver);
-}
-
-#else
-
-static inline int bq27x00_battery_i2c_init(void) { return 0; }
-static inline void bq27x00_battery_i2c_exit(void) {};
-
-#endif
-
-/* platform specific code */
-#ifdef CONFIG_BATTERY_BQ27X00_PLATFORM
-
-static int bq27000_read_platform(struct bq27x00_device_info *di, u8 reg,
-				 bool single)
-{
-	struct device *dev = di->dev;
-	struct bq27000_platform_data *pdata = dev->platform_data;
-	unsigned int timeout = 3;
-	int upper, lower;
-	int temp;
-
-	if (!single) {
-		/* Make sure the value has not changed in between reading the
-		 * lower and the upper part */
-		upper = pdata->read(dev, reg + 1);
-		do {
-			temp = upper;
-			if (upper < 0)
-				return upper;
-
-			lower = pdata->read(dev, reg);
-			if (lower < 0)
-				return lower;
-
-			upper = pdata->read(dev, reg + 1);
-		} while (temp != upper && --timeout);
-
-		if (timeout == 0)
-			return -EIO;
-
-		return (upper << 8) | lower;
-	}
-
-	return pdata->read(dev, reg);
-}
-
-static int bq27000_battery_probe(struct platform_device *pdev)
-{
-	struct bq27x00_device_info *di;
-	struct bq27000_platform_data *pdata = pdev->dev.platform_data;
-	const char *name;
-
-	if (!pdata) {
-		dev_err(&pdev->dev, "no platform_data supplied\n");
-		return -EINVAL;
-	}
-
-	if (!pdata->read) {
-		dev_err(&pdev->dev, "no hdq read callback supplied\n");
-		return -EINVAL;
-	}
-
-	di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
-	if (!di)
-		return -ENOMEM;
-
-	platform_set_drvdata(pdev, di);
-
-	di->dev = &pdev->dev;
-	di->chip = BQ27000;
-
-	name = pdata->name ?: dev_name(&pdev->dev);
-	di->bus.read = &bq27000_read_platform;
-
-	return bq27x00_powersupply_init(di, name);
-}
-
-static int bq27000_battery_remove(struct platform_device *pdev)
-{
-	struct bq27x00_device_info *di = platform_get_drvdata(pdev);
-
-	bq27x00_powersupply_unregister(di);
-
-	return 0;
-}
-
-static struct platform_driver bq27000_battery_driver = {
-	.probe	= bq27000_battery_probe,
-	.remove = bq27000_battery_remove,
-	.driver = {
-		.name = "bq27000-battery",
-	},
-};
-
-static inline int bq27x00_battery_platform_init(void)
-{
-	int ret = platform_driver_register(&bq27000_battery_driver);
-
-	if (ret)
-		pr_err("Unable to register BQ27000 platform driver\n");
-
-	return ret;
-}
-
-static inline void bq27x00_battery_platform_exit(void)
-{
-	platform_driver_unregister(&bq27000_battery_driver);
-}
-
-#else
-
-static inline int bq27x00_battery_platform_init(void) { return 0; }
-static inline void bq27x00_battery_platform_exit(void) {};
-
-#endif
-
-/*
- * Module stuff
- */
-
-static int __init bq27x00_battery_init(void)
-{
-	int ret;
-
-	ret = bq27x00_battery_i2c_init();
-	if (ret)
-		return ret;
-
-	ret = bq27x00_battery_platform_init();
-	if (ret)
-		bq27x00_battery_i2c_exit();
-
-	return ret;
-}
-module_init(bq27x00_battery_init);
-
-static void __exit bq27x00_battery_exit(void)
-{
-	bq27x00_battery_platform_exit();
-	bq27x00_battery_i2c_exit();
-}
-module_exit(bq27x00_battery_exit);
-
-#ifdef CONFIG_BATTERY_BQ27X00_PLATFORM
-MODULE_ALIAS("platform:bq27000-battery");
-#endif
-
-#ifdef CONFIG_BATTERY_BQ27X00_I2C
-MODULE_ALIAS("i2c:bq27000-battery");
-#endif
-
-MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
-MODULE_DESCRIPTION("BQ27x00 battery monitor driver");
-MODULE_LICENSE("GPL");