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, 1102 deletions

diff --git a/drivers/power/bq27xxx_battery.c b/drivers/power/bq27xxx_battery.c
deleted file mode 100644
index 323d05a..0000000
--- a/drivers/power/bq27xxx_battery.c
+++ /dev/null
@@ -1,1102 +0,0 @@
-/*
- * BQ27xxx 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://www.ti.com/product/bq27000
- * http://www.ti.com/product/bq27200
- * http://www.ti.com/product/bq27010
- * http://www.ti.com/product/bq27210
- * http://www.ti.com/product/bq27500
- * http://www.ti.com/product/bq27510-g3
- * http://www.ti.com/product/bq27520-g4
- * http://www.ti.com/product/bq27530-g1
- * http://www.ti.com/product/bq27531-g1
- * http://www.ti.com/product/bq27541-g1
- * http://www.ti.com/product/bq27542-g1
- * http://www.ti.com/product/bq27546-g1
- * http://www.ti.com/product/bq27742-g1
- * http://www.ti.com/product/bq27545-g1
- * http://www.ti.com/product/bq27421-g1
- * http://www.ti.com/product/bq27425-g1
- * http://www.ti.com/product/bq27411-g1
- * http://www.ti.com/product/bq27621-g1
- */
-
-#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/slab.h>
-#include <linux/of.h>
-
-#include <linux/power/bq27xxx_battery.h>
-
-#define DRIVER_VERSION		"1.2.0"
-
-#define BQ27XXX_MANUFACTURER	"Texas Instruments"
-
-/* BQ27XXX Flags */
-#define BQ27XXX_FLAG_DSC	BIT(0)
-#define BQ27XXX_FLAG_SOCF	BIT(1) /* State-of-Charge threshold final */
-#define BQ27XXX_FLAG_SOC1	BIT(2) /* State-of-Charge threshold 1 */
-#define BQ27XXX_FLAG_FC		BIT(9)
-#define BQ27XXX_FLAG_OTD	BIT(14)
-#define BQ27XXX_FLAG_OTC	BIT(15)
-#define BQ27XXX_FLAG_UT		BIT(14)
-#define BQ27XXX_FLAG_OT		BIT(15)
-
-/* BQ27000 has different layout for Flags register */
-#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 BQ27XXX_RS			(20) /* Resistor sense mOhm */
-#define BQ27XXX_POWER_CONSTANT		(29200) /* 29.2 µV^2 * 1000 */
-#define BQ27XXX_CURRENT_CONSTANT	(3570) /* 3.57 µV * 1000 */
-
-#define INVALID_REG_ADDR	0xff
-
-/*
- * bq27xxx_reg_index - Register names
- *
- * These are indexes into a device's register mapping array.
- */
-
-enum bq27xxx_reg_index {
-	BQ27XXX_REG_CTRL = 0,	/* Control */
-	BQ27XXX_REG_TEMP,	/* Temperature */
-	BQ27XXX_REG_INT_TEMP,	/* Internal Temperature */
-	BQ27XXX_REG_VOLT,	/* Voltage */
-	BQ27XXX_REG_AI,		/* Average Current */
-	BQ27XXX_REG_FLAGS,	/* Flags */
-	BQ27XXX_REG_TTE,	/* Time-to-Empty */
-	BQ27XXX_REG_TTF,	/* Time-to-Full */
-	BQ27XXX_REG_TTES,	/* Time-to-Empty Standby */
-	BQ27XXX_REG_TTECP,	/* Time-to-Empty at Constant Power */
-	BQ27XXX_REG_NAC,	/* Nominal Available Capacity */
-	BQ27XXX_REG_FCC,	/* Full Charge Capacity */
-	BQ27XXX_REG_CYCT,	/* Cycle Count */
-	BQ27XXX_REG_AE,		/* Available Energy */
-	BQ27XXX_REG_SOC,	/* State-of-Charge */
-	BQ27XXX_REG_DCAP,	/* Design Capacity */
-	BQ27XXX_REG_AP,		/* Average Power */
-	BQ27XXX_REG_MAX,	/* sentinel */
-};
-
-/* Register mappings */
-static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = {
-	[BQ27000] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x06,
-		[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_VOLT] = 0x08,
-		[BQ27XXX_REG_AI] = 0x14,
-		[BQ27XXX_REG_FLAGS] = 0x0a,
-		[BQ27XXX_REG_TTE] = 0x16,
-		[BQ27XXX_REG_TTF] = 0x18,
-		[BQ27XXX_REG_TTES] = 0x1c,
-		[BQ27XXX_REG_TTECP] = 0x26,
-		[BQ27XXX_REG_NAC] = 0x0c,
-		[BQ27XXX_REG_FCC] = 0x12,
-		[BQ27XXX_REG_CYCT] = 0x2a,
-		[BQ27XXX_REG_AE] = 0x22,
-		[BQ27XXX_REG_SOC] = 0x0b,
-		[BQ27XXX_REG_DCAP] = 0x76,
-		[BQ27XXX_REG_AP] = 0x24,
-	},
-	[BQ27010] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x06,
-		[BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_VOLT] = 0x08,
-		[BQ27XXX_REG_AI] = 0x14,
-		[BQ27XXX_REG_FLAGS] = 0x0a,
-		[BQ27XXX_REG_TTE] = 0x16,
-		[BQ27XXX_REG_TTF] = 0x18,
-		[BQ27XXX_REG_TTES] = 0x1c,
-		[BQ27XXX_REG_TTECP] = 0x26,
-		[BQ27XXX_REG_NAC] = 0x0c,
-		[BQ27XXX_REG_FCC] = 0x12,
-		[BQ27XXX_REG_CYCT] = 0x2a,
-		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_SOC] = 0x0b,
-		[BQ27XXX_REG_DCAP] = 0x76,
-		[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
-	},
-	[BQ27500] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x06,
-		[BQ27XXX_REG_INT_TEMP] = 0x28,
-		[BQ27XXX_REG_VOLT] = 0x08,
-		[BQ27XXX_REG_AI] = 0x14,
-		[BQ27XXX_REG_FLAGS] = 0x0a,
-		[BQ27XXX_REG_TTE] = 0x16,
-		[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTES] = 0x1a,
-		[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_NAC] = 0x0c,
-		[BQ27XXX_REG_FCC] = 0x12,
-		[BQ27XXX_REG_CYCT] = 0x2a,
-		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_SOC] = 0x2c,
-		[BQ27XXX_REG_DCAP] = 0x3c,
-		[BQ27XXX_REG_AP] = INVALID_REG_ADDR,
-	},
-	[BQ27530] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x06,
-		[BQ27XXX_REG_INT_TEMP] = 0x32,
-		[BQ27XXX_REG_VOLT] = 0x08,
-		[BQ27XXX_REG_AI] = 0x14,
-		[BQ27XXX_REG_FLAGS] = 0x0a,
-		[BQ27XXX_REG_TTE] = 0x16,
-		[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_NAC] = 0x0c,
-		[BQ27XXX_REG_FCC] = 0x12,
-		[BQ27XXX_REG_CYCT] = 0x2a,
-		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_SOC] = 0x2c,
-		[BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_AP] = 0x24,
-	},
-	[BQ27541] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x06,
-		[BQ27XXX_REG_INT_TEMP] = 0x28,
-		[BQ27XXX_REG_VOLT] = 0x08,
-		[BQ27XXX_REG_AI] = 0x14,
-		[BQ27XXX_REG_FLAGS] = 0x0a,
-		[BQ27XXX_REG_TTE] = 0x16,
-		[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_NAC] = 0x0c,
-		[BQ27XXX_REG_FCC] = 0x12,
-		[BQ27XXX_REG_CYCT] = 0x2a,
-		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_SOC] = 0x2c,
-		[BQ27XXX_REG_DCAP] = 0x3c,
-		[BQ27XXX_REG_AP] = 0x24,
-	},
-	[BQ27545] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x06,
-		[BQ27XXX_REG_INT_TEMP] = 0x28,
-		[BQ27XXX_REG_VOLT] = 0x08,
-		[BQ27XXX_REG_AI] = 0x14,
-		[BQ27XXX_REG_FLAGS] = 0x0a,
-		[BQ27XXX_REG_TTE] = 0x16,
-		[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_NAC] = 0x0c,
-		[BQ27XXX_REG_FCC] = 0x12,
-		[BQ27XXX_REG_CYCT] = 0x2a,
-		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_SOC] = 0x2c,
-		[BQ27XXX_REG_DCAP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_AP] = 0x24,
-	},
-	[BQ27421] = {
-		[BQ27XXX_REG_CTRL] = 0x00,
-		[BQ27XXX_REG_TEMP] = 0x02,
-		[BQ27XXX_REG_INT_TEMP] = 0x1e,
-		[BQ27XXX_REG_VOLT] = 0x04,
-		[BQ27XXX_REG_AI] = 0x10,
-		[BQ27XXX_REG_FLAGS] = 0x06,
-		[BQ27XXX_REG_TTE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTF] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTES] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_TTECP] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_NAC] = 0x08,
-		[BQ27XXX_REG_FCC] = 0x0e,
-		[BQ27XXX_REG_CYCT] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_AE] = INVALID_REG_ADDR,
-		[BQ27XXX_REG_SOC] = 0x1c,
-		[BQ27XXX_REG_DCAP] = 0x3c,
-		[BQ27XXX_REG_AP] = 0x18,
-	},
-};
-
-static enum power_supply_property bq27000_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 bq27010_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_HEALTH,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27500_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_HEALTH,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27530_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_POWER_AVG,
-	POWER_SUPPLY_PROP_HEALTH,
-	POWER_SUPPLY_PROP_CYCLE_COUNT,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27541_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 bq27545_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_HEALTH,
-	POWER_SUPPLY_PROP_CYCLE_COUNT,
-	POWER_SUPPLY_PROP_POWER_AVG,
-	POWER_SUPPLY_PROP_MANUFACTURER,
-};
-
-static enum power_supply_property bq27421_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,
-};
-
-#define BQ27XXX_PROP(_id, _prop)		\
-	[_id] = {				\
-		.props = _prop,			\
-		.size = ARRAY_SIZE(_prop),	\
-	}
-
-static struct {
-	enum power_supply_property *props;
-	size_t size;
-} bq27xxx_battery_props[] = {
-	BQ27XXX_PROP(BQ27000, bq27000_battery_props),
-	BQ27XXX_PROP(BQ27010, bq27010_battery_props),
-	BQ27XXX_PROP(BQ27500, bq27500_battery_props),
-	BQ27XXX_PROP(BQ27530, bq27530_battery_props),
-	BQ27XXX_PROP(BQ27541, bq27541_battery_props),
-	BQ27XXX_PROP(BQ27545, bq27545_battery_props),
-	BQ27XXX_PROP(BQ27421, bq27421_battery_props),
-};
-
-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 BQ27xxx devices
- */
-
-static inline int bq27xxx_read(struct bq27xxx_device_info *di, int reg_index,
-			       bool single)
-{
-	/* Reports EINVAL for invalid/missing registers */
-	if (!di || di->regs[reg_index] == INVALID_REG_ADDR)
-		return -EINVAL;
-
-	return di->bus.read(di, di->regs[reg_index], single);
-}
-
-/*
- * Return the battery State-of-Charge
- * Or < 0 if something fails.
- */
-static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di)
-{
-	int soc;
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		soc = bq27xxx_read(di, BQ27XXX_REG_SOC, true);
-	else
-		soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false);
-
-	if (soc < 0)
-		dev_dbg(di->dev, "error reading State-of-Charge\n");
-
-	return soc;
-}
-
-/*
- * Return a battery charge value in µAh
- * Or < 0 if something fails.
- */
-static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg)
-{
-	int charge;
-
-	charge = bq27xxx_read(di, reg, false);
-	if (charge < 0) {
-		dev_dbg(di->dev, "error reading charge register %02x: %d\n",
-			reg, charge);
-		return charge;
-	}
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		charge *= BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
-	else
-		charge *= 1000;
-
-	return charge;
-}
-
-/*
- * Return the battery Nominal available capacity in µAh
- * Or < 0 if something fails.
- */
-static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di)
-{
-	int flags;
-
-	if (di->chip == BQ27000 || di->chip == BQ27010) {
-		flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true);
-		if (flags >= 0 && (flags & BQ27000_FLAG_CI))
-			return -ENODATA;
-	}
-
-	return bq27xxx_battery_read_charge(di, BQ27XXX_REG_NAC);
-}
-
-/*
- * Return the battery Full Charge Capacity in µAh
- * Or < 0 if something fails.
- */
-static inline int bq27xxx_battery_read_fcc(struct bq27xxx_device_info *di)
-{
-	return bq27xxx_battery_read_charge(di, BQ27XXX_REG_FCC);
-}
-
-/*
- * Return the Design Capacity in µAh
- * Or < 0 if something fails.
- */
-static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di)
-{
-	int dcap;
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, true);
-	else
-		dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false);
-
-	if (dcap < 0) {
-		dev_dbg(di->dev, "error reading initial last measured discharge\n");
-		return dcap;
-	}
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		dcap = (dcap << 8) * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
-	else
-		dcap *= 1000;
-
-	return dcap;
-}
-
-/*
- * Return the battery Available energy in µWh
- * Or < 0 if something fails.
- */
-static int bq27xxx_battery_read_energy(struct bq27xxx_device_info *di)
-{
-	int ae;
-
-	ae = bq27xxx_read(di, BQ27XXX_REG_AE, false);
-	if (ae < 0) {
-		dev_dbg(di->dev, "error reading available energy\n");
-		return ae;
-	}
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		ae *= BQ27XXX_POWER_CONSTANT / BQ27XXX_RS;
-	else
-		ae *= 1000;
-
-	return ae;
-}
-
-/*
- * Return the battery temperature in tenths of degree Kelvin
- * Or < 0 if something fails.
- */
-static int bq27xxx_battery_read_temperature(struct bq27xxx_device_info *di)
-{
-	int temp;
-
-	temp = bq27xxx_read(di, BQ27XXX_REG_TEMP, false);
-	if (temp < 0) {
-		dev_err(di->dev, "error reading temperature\n");
-		return temp;
-	}
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		temp = 5 * temp / 2;
-
-	return temp;
-}
-
-/*
- * Return the battery Cycle count total
- * Or < 0 if something fails.
- */
-static int bq27xxx_battery_read_cyct(struct bq27xxx_device_info *di)
-{
-	int cyct;
-
-	cyct = bq27xxx_read(di, BQ27XXX_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 bq27xxx_battery_read_time(struct bq27xxx_device_info *di, u8 reg)
-{
-	int tval;
-
-	tval = bq27xxx_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 an average power register.
- * Return < 0 if something fails.
- */
-static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di)
-{
-	int tval;
-
-	tval = bq27xxx_read(di, BQ27XXX_REG_AP, false);
-	if (tval < 0) {
-		dev_err(di->dev, "error reading average power register  %02x: %d\n",
-			BQ27XXX_REG_AP, tval);
-		return tval;
-	}
-
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		return (tval * BQ27XXX_POWER_CONSTANT) / BQ27XXX_RS;
-	else
-		return tval;
-}
-
-/*
- * Returns true if a battery over temperature condition is detected
- */
-static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags)
-{
-	if (di->chip == BQ27500 || di->chip == BQ27541 || di->chip == BQ27545)
-		return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD);
-	if (di->chip == BQ27530 || di->chip == BQ27421)
-		return flags & BQ27XXX_FLAG_OT;
-
-	return false;
-}
-
-/*
- * Returns true if a battery under temperature condition is detected
- */
-static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags)
-{
-	if (di->chip == BQ27530 || di->chip == BQ27421)
-		return flags & BQ27XXX_FLAG_UT;
-
-	return false;
-}
-
-/*
- * Returns true if a low state of charge condition is detected
- */
-static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags)
-{
-	if (di->chip == BQ27000 || di->chip == BQ27010)
-		return flags & (BQ27000_FLAG_EDV1 | BQ27000_FLAG_EDVF);
-	else
-		return flags & (BQ27XXX_FLAG_SOC1 | BQ27XXX_FLAG_SOCF);
-}
-
-/*
- * Read flag register.
- * Return < 0 if something fails.
- */
-static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di)
-{
-	int flags;
-
-	flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, false);
-	if (flags < 0) {
-		dev_err(di->dev, "error reading flag register:%d\n", flags);
-		return flags;
-	}
-
-	/* Unlikely but important to return first */
-	if (unlikely(bq27xxx_battery_overtemp(di, flags)))
-		return POWER_SUPPLY_HEALTH_OVERHEAT;
-	if (unlikely(bq27xxx_battery_undertemp(di, flags)))
-		return POWER_SUPPLY_HEALTH_COLD;
-	if (unlikely(bq27xxx_battery_dead(di, flags)))
-		return POWER_SUPPLY_HEALTH_DEAD;
-
-	return POWER_SUPPLY_HEALTH_GOOD;
-}
-
-void bq27xxx_battery_update(struct bq27xxx_device_info *di)
-{
-	struct bq27xxx_reg_cache cache = {0, };
-	bool has_ci_flag = di->chip == BQ27000 || di->chip == BQ27010;
-	bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010;
-
-	cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag);
-	if ((cache.flags & 0xff) == 0xff)
-		cache.flags = -1; /* read error */
-	if (cache.flags >= 0) {
-		cache.temperature = bq27xxx_battery_read_temperature(di);
-		if (has_ci_flag && (cache.flags & BQ27000_FLAG_CI)) {
-			dev_info_once(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 {
-			if (di->regs[BQ27XXX_REG_TTE] != INVALID_REG_ADDR)
-				cache.time_to_empty = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTE);
-			if (di->regs[BQ27XXX_REG_TTECP] != INVALID_REG_ADDR)
-				cache.time_to_empty_avg = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTECP);
-			if (di->regs[BQ27XXX_REG_TTF] != INVALID_REG_ADDR)
-				cache.time_to_full = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTF);
-			cache.charge_full = bq27xxx_battery_read_fcc(di);
-			cache.capacity = bq27xxx_battery_read_soc(di);
-			if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR)
-				cache.energy = bq27xxx_battery_read_energy(di);
-			cache.health = bq27xxx_battery_read_health(di);
-		}
-		if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR)
-			cache.cycle_count = bq27xxx_battery_read_cyct(di);
-		if (di->regs[BQ27XXX_REG_AP] != INVALID_REG_ADDR)
-			cache.power_avg = bq27xxx_battery_read_pwr_avg(di);
-
-		/* We only have to read charge design full once */
-		if (di->charge_design_full <= 0)
-			di->charge_design_full = bq27xxx_battery_read_dcap(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;
-}
-EXPORT_SYMBOL_GPL(bq27xxx_battery_update);
-
-static void bq27xxx_battery_poll(struct work_struct *work)
-{
-	struct bq27xxx_device_info *di =
-			container_of(work, struct bq27xxx_device_info,
-				     work.work);
-
-	bq27xxx_battery_update(di);
-
-	if (poll_interval > 0)
-		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 bq27xxx_battery_current(struct bq27xxx_device_info *di,
-				   union power_supply_propval *val)
-{
-	int curr;
-	int flags;
-
-	curr = bq27xxx_read(di, BQ27XXX_REG_AI, false);
-	if (curr < 0) {
-		dev_err(di->dev, "error reading current\n");
-		return curr;
-	}
-
-	if (di->chip == BQ27000 || di->chip == BQ27010) {
-		flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, false);
-		if (flags & BQ27000_FLAG_CHGS) {
-			dev_dbg(di->dev, "negative current!\n");
-			curr = -curr;
-		}
-
-		val->intval = curr * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS;
-	} else {
-		/* Other gauges return signed value */
-		val->intval = (int)((s16)curr) * 1000;
-	}
-
-	return 0;
-}
-
-static int bq27xxx_battery_status(struct bq27xxx_device_info *di,
-				  union power_supply_propval *val)
-{
-	int status;
-
-	if (di->chip == BQ27000 || di->chip == BQ27010) {
-		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;
-	} else {
-		if (di->cache.flags & BQ27XXX_FLAG_FC)
-			status = POWER_SUPPLY_STATUS_FULL;
-		else if (di->cache.flags & BQ27XXX_FLAG_DSC)
-			status = POWER_SUPPLY_STATUS_DISCHARGING;
-		else
-			status = POWER_SUPPLY_STATUS_CHARGING;
-	}
-
-	val->intval = status;
-
-	return 0;
-}
-
-static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di,
-					  union power_supply_propval *val)
-{
-	int level;
-
-	if (di->chip == BQ27000 || di->chip == BQ27010) {
-		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;
-	} else {
-		if (di->cache.flags & BQ27XXX_FLAG_FC)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
-		else if (di->cache.flags & BQ27XXX_FLAG_SOC1)
-			level = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
-		else if (di->cache.flags & BQ27XXX_FLAG_SOCF)
-			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 bq27xxx_battery_voltage(struct bq27xxx_device_info *di,
-				   union power_supply_propval *val)
-{
-	int volt;
-
-	volt = bq27xxx_read(di, BQ27XXX_REG_VOLT, false);
-	if (volt < 0) {
-		dev_err(di->dev, "error reading voltage\n");
-		return volt;
-	}
-
-	val->intval = volt * 1000;
-
-	return 0;
-}
-
-static int bq27xxx_simple_value(int value,
-				union power_supply_propval *val)
-{
-	if (value < 0)
-		return value;
-
-	val->intval = value;
-
-	return 0;
-}
-
-static int bq27xxx_battery_get_property(struct power_supply *psy,
-					enum power_supply_property psp,
-					union power_supply_propval *val)
-{
-	int ret = 0;
-	struct bq27xxx_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);
-		bq27xxx_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 = bq27xxx_battery_status(di, val);
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		ret = bq27xxx_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 = bq27xxx_battery_current(di, val);
-		break;
-	case POWER_SUPPLY_PROP_CAPACITY:
-		ret = bq27xxx_simple_value(di->cache.capacity, val);
-		break;
-	case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
-		ret = bq27xxx_battery_capacity_level(di, val);
-		break;
-	case POWER_SUPPLY_PROP_TEMP:
-		ret = bq27xxx_simple_value(di->cache.temperature, val);
-		if (ret == 0)
-			val->intval -= 2731; /* convert decidegree k to c */
-		break;
-	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
-		ret = bq27xxx_simple_value(di->cache.time_to_empty, val);
-		break;
-	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
-		ret = bq27xxx_simple_value(di->cache.time_to_empty_avg, val);
-		break;
-	case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
-		ret = bq27xxx_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 = bq27xxx_simple_value(bq27xxx_battery_read_nac(di), val);
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_FULL:
-		ret = bq27xxx_simple_value(di->cache.charge_full, val);
-		break;
-	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
-		ret = bq27xxx_simple_value(di->charge_design_full, val);
-		break;
-	case POWER_SUPPLY_PROP_CYCLE_COUNT:
-		ret = bq27xxx_simple_value(di->cache.cycle_count, val);
-		break;
-	case POWER_SUPPLY_PROP_ENERGY_NOW:
-		ret = bq27xxx_simple_value(di->cache.energy, val);
-		break;
-	case POWER_SUPPLY_PROP_POWER_AVG:
-		ret = bq27xxx_simple_value(di->cache.power_avg, val);
-		break;
-	case POWER_SUPPLY_PROP_HEALTH:
-		ret = bq27xxx_simple_value(di->cache.health, val);
-		break;
-	case POWER_SUPPLY_PROP_MANUFACTURER:
-		val->strval = BQ27XXX_MANUFACTURER;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return ret;
-}
-
-static void bq27xxx_external_power_changed(struct power_supply *psy)
-{
-	struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);
-
-	cancel_delayed_work_sync(&di->work);
-	schedule_delayed_work(&di->work, 0);
-}
-
-int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
-{
-	struct power_supply_desc *psy_desc;
-	struct power_supply_config psy_cfg = { .drv_data = di, };
-
-	INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll);
-	mutex_init(&di->lock);
-	di->regs = bq27xxx_regs[di->chip];
-
-	psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL);
-	if (!psy_desc)
-		return -ENOMEM;
-
-	psy_desc->name = di->name;
-	psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
-	psy_desc->properties = bq27xxx_battery_props[di->chip].props;
-	psy_desc->num_properties = bq27xxx_battery_props[di->chip].size;
-	psy_desc->get_property = bq27xxx_battery_get_property;
-	psy_desc->external_power_changed = bq27xxx_external_power_changed;
-
-	di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg);
-	if (IS_ERR(di->bat)) {
-		dev_err(di->dev, "failed to register battery\n");
-		return PTR_ERR(di->bat);
-	}
-
-	dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION);
-
-	bq27xxx_battery_update(di);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(bq27xxx_battery_setup);
-
-void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
-{
-	/*
-	 * power_supply_unregister call bq27xxx_battery_get_property which
-	 * call bq27xxx_battery_poll.
-	 * Make sure that bq27xxx_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);
-}
-EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
-
-static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg,
-					 bool single)
-{
-	struct device *dev = di->dev;
-	struct bq27xxx_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 bq27xxx_battery_platform_probe(struct platform_device *pdev)
-{
-	struct bq27xxx_device_info *di;
-	struct bq27xxx_platform_data *pdata = pdev->dev.platform_data;
-
-	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;
-	}
-
-	if (!pdata->chip) {
-		dev_err(&pdev->dev, "no device 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 = pdata->chip;
-	di->name = pdata->name ?: dev_name(&pdev->dev);
-	di->bus.read = bq27xxx_battery_platform_read;
-
-	return bq27xxx_battery_setup(di);
-}
-
-static int bq27xxx_battery_platform_remove(struct platform_device *pdev)
-{
-	struct bq27xxx_device_info *di = platform_get_drvdata(pdev);
-
-	bq27xxx_battery_teardown(di);
-
-	return 0;
-}
-
-static const struct platform_device_id bq27xxx_battery_platform_id_table[] = {
-	{ "bq27000-battery", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table);
-
-#ifdef CONFIG_OF
-static const struct of_device_id bq27xxx_battery_platform_of_match_table[] = {
-	{ .compatible = "ti,bq27000" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, bq27xxx_battery_platform_of_match_table);
-#endif
-
-static struct platform_driver bq27xxx_battery_platform_driver = {
-	.probe	= bq27xxx_battery_platform_probe,
-	.remove = bq27xxx_battery_platform_remove,
-	.driver = {
-		.name = "bq27000-battery",
-		.of_match_table = of_match_ptr(bq27xxx_battery_platform_of_match_table),
-	},
-	.id_table = bq27xxx_battery_platform_id_table,
-};
-module_platform_driver(bq27xxx_battery_platform_driver);
-
-MODULE_ALIAS("platform:bq27000-battery");
-
-MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
-MODULE_DESCRIPTION("BQ27xxx battery monitor driver");
-MODULE_LICENSE("GPL");