This patch adds support for DA9150 Charger & Fuel-Gauge IC Charger.
Signed-off-by: NAdam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

Both the LTC2941 and LTC2943 measure battery capacity.
The LTC2943 is compatible with the LTC2941, it adds voltage and
temperature monitoring, and uses a slightly different conversion
formula for the charge counter.

To avoid confusion with e.g. the LTC2945, the driver is called
LTC2941 instead of LTC294X.

v2: Fix units of measurement: uV, uA and centidegrees.
v3: Correctly set configuration register. Allow negative values
    for the sense resistor.
v4: Run checkpatch.pl and fix all errors and warnings.
v5: Prefix "lltc," to devicetree properties.
Signed-off-by: NMike Looijmans <mike.looijmans@topic.nl>
[ removed .owner field ]
Signed-off-by: NSebastian Reichel <sre@kernel.org>

To guerantee proper charing and managing batteries even in suspend,
charger-manager has used rtc device with rtc framework interface.
However, it is better to use alarmtimer for cleaner and more appropriate
operation.
This patch makes driver to use alarmtimer for polling work in suspend and
removes all deprecated codes related with using rtc interface.
Signed-off-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

This is only a small clean-up. The driver can be built without SYSFS
as there exist stubs for used functions.
Signed-off-by: NKarol Wrona <k.wrona@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

Add new driver for Maxim 77693 switch-mode charger (part of max77693
MFD driver) providing power supply class information to userspace.

The charger has +20V tolerant input. Current input can be set from 0 to
2.58 A. The charger can deliver up to 2.1 A to the battery or 3.5 A to
the system (when supplying additional current from battery to system).

The driver is configured through DTS (battery and system related
settings) and sysfs entries (timers and top-off charging threshold).
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

This patch adds device driver of Richtek PMIC.
The driver support battery fuel gauge. Fuel gauge calculates and determines the
battery state of charge (SOC) according to battery open circuit voltage (OCV).
Also, this driver provides battery average voltage, voltage and battery present
property.

Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: NBeomho Seo <beomho.seo@samsung.com>
Acked-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

Make the max14577 charger driver depending on SYSFS instead selecting
it. This fixes warning on x86_64 with allmodconfig:

scripts/kconfig/conf --allmodconfig Kconfig
fs/sysfs/Kconfig:1:error: recursive dependency detected!
fs/sysfs/Kconfig:1:	symbol SYSFS is selected by CHARGER_MAX14577
drivers/power/Kconfig:327:	symbol CHARGER_MAX14577 depends on POWER_SUPPLY
drivers/power/Kconfig:1:	symbol POWER_SUPPLY is selected by HID_SONY
drivers/hid/Kconfig:638:	symbol HID_SONY depends on NEW_LEDS
drivers/leds/Kconfig:8:	symbol NEW_LEDS is selected by SENSORS_APPLESMC
drivers/hwmon/Kconfig:299:	symbol SENSORS_APPLESMC depends on HWMON
drivers/hwmon/Kconfig:5:	symbol HWMON is selected by EEEPC_LAPTOP
drivers/platform/x86/Kconfig:496:	symbol EEEPC_LAPTOP depends on HOTPLUG_PCI
drivers/pci/hotplug/Kconfig:5:	symbol HOTPLUG_PCI depends on SYSFS
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

Remove hard-coded values for:
 - Fast Charge current,
 - End Of Charge current,
 - Fast Charge timer,
 - Overvoltage Protection Threshold,
 - Battery Constant Voltage,
and use DTS or sysfs to configure them. This allows using the max14577 charger
driver with different batteries.

Now the charger driver requires valid configuration data from DTS. In
case of wrong configuration data it fails during probe.

The fast charge timer is configured through sysfs entry.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add support for MAX77836 charger to the max14577 driver. The MAX77836
charger is almost the same as 14577 model except:
 - No dead-battery detection;
 - Support for special charger (like in MAX77693);
 - Support for DX over-voltage protection (like in MAX77693);
 - Lower values of charging current (two times lower current for
   slow/fast charge, much lower EOC current);
 - Slightly different values in ChgTyp field of STATUS2 register. On
   MAX14577 0x6 is reserved and 0x7 dead battery. On the MAX77836 the
   0x6 means special charger and 0x7 is reserved. Regardless of these
   differences the driver maps them to one enum max14577_muic_charger_type.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

This adds a driver for reading the battery status of the
battery connected to the Atmel microcontroller on the
iPAQ h3xxx series.

Based on a driver from handhelds.org 2.6.21 kernel, written
by Alessandro GARDICH.
Signed-off-by: NDmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

On archs like S390 or um this driver cannot build nor work.
Make it depend on HAS_IOMEM to bypass build failures.

drivers/built-in.o: In function `goldfish_battery_probe':
drivers/power/goldfish_battery.c:181: undefined reference to `devm_ioremap'
Signed-off-by: NRichard Weinberger <richard@nod.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAX14577 chip is a multi-function device which includes MUIC, charger and
voltage regulator. The driver is located in drivers/mfd.

This patch supports battery charging control of MAX14577 chip and provides
power supply class information to userspace.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

max17042 now uses regmap interface but does not enable config option. This
patch fixes the following build errors:

drivers/power/max17042_battery.c:661:15: error: variable ‘max17042_regmap_config’ has initializer but incomplete type
drivers/power/max17042_battery.c:662:2: error: unknown field ‘reg_bits’ specified in initializer
drivers/power/max17042_battery.c:662:2: warning: excess elements in struct initializer
drivers/power/max17042_battery.c:662:2: warning: (near initialization for ‘max17042_regmap_config’)
drivers/power/max17042_battery.c:663:2: error: unknown field ‘val_bits’ specified in initializer
drivers/power/max17042_battery.c:663:2: warning: excess elements in struct initializer
drivers/power/max17042_battery.c:663:2: warning: (near initialization for ‘max17042_regmap_config’)
drivers/power/max17042_battery.c:664:2: error: unknown field ‘val_format_endian’ specified in initializer
drivers/power/max17042_battery.c:664:23: error: ‘REGMAP_ENDIAN_NATIVE’ undeclared here (not in a function)
drivers/power/max17042_battery.c:664:2: warning: excess elements in struct initializer
drivers/power/max17042_battery.c:664:2: warning: (near initialization for ‘max17042_regmap_config’)
drivers/power/max17042_battery.c: In function ‘max17042_probe’:
drivers/power/max17042_battery.c:684:2: error: implicit declaration of function ‘devm_regmap_init_i2c’
Signed-off-by: NAustin Boyle <boyle.austin@gmail.com>
Acked-by: NJonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Adds support for the bq24735 charger chipset. The bq24735 is a
high-efficiency, synchronous battery charger.

It allows control of the charging current, input current, and the charger
voltage DAC's through SMBus.
Signed-off-by: NDarbha Sriharsha <dsriharsha@nvidia.com>
Signed-off-by: NRhyland Klein <rklein@nvidia.com>
Thanks-to: Stephen Warren <swarren@wwwdotorg.org>
Thanks-to: Thierry Reding <thierry.reding@gmail.com>
Thanks-to: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

This driver is used and tested on gta04 phone. It's using twl4030_madc
(similar to rx51 existing driver). Driver also implement charging and
discharging calibration data so user can define ranges and level.
Signed-off-by: NMarek Belisko <marek@goldelico.com>
Signed-off-by: NLukas Märdian <lukas@goldelico.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Add driver support for the Texas Instruments BQ24190 battery charger.
Some of the information provided by the device is about the charger and
other information is about the battery so create two power_supply objects
(one for each) and provide the appropriate information for each one.

The device has many fields that go beyond what is reasonable to report or
modify using the existing 'POWER_SUPPLY_PROP_*' properties so the driver
exports the register fields via sysfs.  They are prefixed by 'f_' (for
'field') to make it easier to distinguish between a register field and a
"normal" sysfs file exported by the power_supply infrastructure.
Signed-off-by: NMark A. Greer <mgreer@animalcreek.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Nearly all the other goldfish peripherals (mtd, keyboard, etc) have a
dependency on the main platform's GOLDFISH Kconfig item, but this one got
skipped.  Even with consistency as a justification, there was initial
resistance[1] from some people to adding it however, as they wanted the
extra compile coverage.

Now, with CONFIG_COMPILE_TEST, we have the middle ground that will give
people the coverage who want it, and let those who don't want it to skip
ever seeing the option presented.

[1] https://lkml.org/lkml/2013/2/27/333

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

This patch fixes build failure(randconfig) of next-20130501. When config
I2C as m, BATTERY_BQ27x00 as y, here comes the failure. The driver depends
on I2C only if I2C is not disabled, as Lars commented. Last version of
this patch make the driver depend on I2C unconditionally.

Failure message:
drivers/built-in.o: In function `bq27x00_read_i2c':
bq27x00_battery.c:(.text+0x1082a7): undefined reference to `i2c_transfer'
drivers/built-in.o: In function `bq27x00_battery_init':
bq27x00_battery.c:(.init.text+0x6085): undefined reference to `i2c_register_driver'
bq27x00_battery.c:(.init.text+0x60c7): undefined reference to `i2c_del_driver'
drivers/built-in.o: In function `bq27x00_battery_exit':
bq27x00_battery.c:(.exit.text+0xbf0): undefined reference to `i2c_del_driver'
make: *** [vmlinux] Error 1
Signed-off-by: NXiong Zhou <jencce.kernel@gmail.com>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Fix build errors in lp8788-charger by making it depend on IIO.
Fixes errors when CONFIG_IIO=m and CHARGER_LP8788=y.

lp8788-charger.c:(.text+0x2146b5): undefined reference to `iio_channel_get'
lp8788-charger.c:(.text+0x2146ce): undefined reference to `iio_channel_get'
lp8788-charger.c:(.text+0x214a86): undefined reference to `iio_read_channel_processed'
lp8788-charger.c:(.text+0x214b51): undefined reference to `iio_read_channel_processed'
lp8788-charger.c:(.text+0x214c30): undefined reference to `iio_read_channel_processed'
lp8788-charger.c:(.text+0x214d93): undefined reference to `iio_channel_release'
lp8788-charger.c:(.text+0x214dac): undefined reference to `iio_channel_release'
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Acked-by: NMilo Kim <milo.kim@ti.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

This patch adds support for the tps65090 charger driver. This driver is
responsible for controlling the charger aspect of the tps65090 mfd.
Currently, this mainly consists of turning on and off the charger, but
some features of the charger can be supported through this driver
including:

- Enable Auto Recharge based on Battery voltage
- Fast Charge Safety Timer
- Maximum battery discharge current
- Maximum battery adapter current
- Enable External Charge
- Disable charging termination based on low charger current (supported)

Once the driver is accepted, later patches can add support for the
features above which are not yet supported.

Based on work by:

  Syed Rafiuddin <srafiuddin@nvidia.com>
  Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: NRhyland Klein <rklein@nvidia.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

there are no more users of CONFIG_USB_OTG_UTILS
left in tree, we can remove it just fine.

[ kishon@ti.com : fixed a linking error due
	to original patch forgetting to change
	drivers/usb/Makefile ]
Signed-off-by: NKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: NFelipe Balbi <balbi@ti.com>

The PM2301 Charger should always be available when using the AB8500
Battery Management system, we're ensuring this will be the case.
Signed-off-by: NMarcus Cooper <marcus.xm.cooper@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NHakan BERG <hakan.berg@stericsson.com>
Reviewed-by: NMian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>

Fix this link error on s390:

ERROR: "devm_request_threaded_irq" [drivers/power/goldfish_battery.ko] undefined!

Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Add the emulated power driver for the Goldfish platform.

This folds together the code from the Google tree, Jun Nakajima's cleanups
and x86 porting work, and then a tidy up to pass checkpatch.
Signed-off-by: NMike A. Chan <mikechan@google.com>
[cleanup and x86 support]
Signed-off-by: NSheng Yang <sheng@linux.intel.com>
Signed-off-by: NYunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: NXiaohui Xin <xiaohui.xin@intel.com>
Signed-off-by: NJun Nakajima <jun.nakajima@intel.com>
Signed-off-by: NBruce Beare <bruce.j.beare@intel.com>
[ported to 3.4]
Signed-off-by: NTom Keel <thomas.keel@intel.com>
[ported to 3.7 and final tidy]
Signed-off-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

AC charger driver for the DB9540 based platforms.
Signed-off-by: NRajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: NLoic Pallardy <loic.pallardy@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMichel JAOUEN <michel.jaouen@stericsson.com>
Tested-by: NMichel JAOUEN <michel.jaouen@stericsson.com>

Given appropriate devicetree bindings, this driver registers a
pm_power_off function to set a GPIO line high/low to power down
your board.
Signed-off-by: NJamie Lentin <jm@lentin.co.uk>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NSimon Baatz <gmbnomis@gmail.com>
Signed-off-by: NJason Cooper <jason@lakedaemon.net>

This patch adds device tree support for battery-temperature-monitor driver
Signed-off-by: NRajanikanth H.V <rajanikanth.hv@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

This commit adds Kconfig and Makefile entries so that we could actually
build the driver.
Signed-off-by: NAnton Vorontsov <cbouatmailru@gmail.com>

This driver exporting battery design capacity, temperature and voltage for
battery in Nokia RX-51. This driver is needed for open source battery
management on Nokia RX-51 (N900).
Signed-off-by: NPali Rohár <pali.rohar@gmail.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

Driver to allow use of the ADC drivers supported by the IIO
subsystem for battery status monitoring. Connecting this
driver to the relevant IIO device requires registration of
the appropriate iio_map structure array by the IIO device
driver (usually from platform data).  If specified the driver
will also make use of a gpio to provide interrupt driven
notification that the battery is fully charged.

In last version:
Addressed concerns raised by lars:
a. made the adc_bat per device.
b. get the IIO channel using hardcoded channel names.
c. Minor issues related to gpio_is_valid and some code
   refactoring.

In V1:
Addressed concerns raised by Anton:
a. changed the struct name to gab(generic adc battery).
b. Added some functions to neaten the code.
c. Some minor coding guidelines changes.
d. Used the latest function introduce by lars:
   iio_read_channel_processed to streamline the code.

In V2:
Addressed concerns by lars:
a. No need of allocating memory for channels.Make it array.
b. Code restructring, coding style and following kernel guidelines changes
   suggested by him.

In V3:
Addressed conerns by Anton:
a. Added the copyright.
b. Coding guidelines changes suggested by him.
c. Added Makefile and Kconfig
Signed-off-by: Nanish kumar <anish198519851985@gmail.com>
Acked-by: NAnton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

There are charger and battery measurement feature for 88pm860x PMIC.

For charger, it can support pre-charge with small current when battery is
nearly exausted and then changed into fast-charge with CC&CV mode.

For battery monitor, it can support battery measurement such as
vbat,vsys,vchg and ibat etc,it can aslo accumulating the Coulomb value
charged or discharged from battery based on Conlomb Counter, we use it
to estimate battery capacity.
Signed-off-by: NJett.Zhou <jtzhou@marvell.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight
driver and current sinks.

This patch supports the charger operations including the charger
interrupt handling.

The LP8788 charger driver provides configurable platform data.  The
charger platform data includes ADC input ID, maximum battery voltage,
charging parameters and etc.

The ADC input is used for getting the battery voltage and temperature.
Charging parameters are used for updating the charger operations such
like setting charging current and setting End-of-charge conditions.

When the charging interrupt occurs, power supply uevents are generated
in order to update the user-space information.  For platform specific
charger action, the charger_event() function can be used in the
platform side.
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

The fix for MFD part is already merged so we can remove the broken mark
for da9052-battery.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

This patch select CONFIG_EXTCON to resolve below build break of
charger-manager because charger-manager use API of EXTCON subsystem.

drivers/built-in.o: In function `charger_manager_probe':
charger-manager.c:(.text+0x11d61a): undefined reference to `extcon_register_interest'
charger-manager.c:(.text+0x11d7b6): undefined reference to `extcon_unregister_interest'
drivers/built-in.o: In function `charger_manager_remove':
charger-manager.c:(.devexit.text+0x8f3): undefined reference to `extcon_unregister_interest'
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NMyungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

After a clean-up of the interfaces the OMAP Smartreflex IP driver is now a
generic driver. Move it to drivers/power/avs/.

The build is controlled by the following Kconfig options:
 . CONFIG_POWER_AVS: general knob for Adaptive Voltage Scaling support,
 . CONFIG_POWER_AVS_OMAP: AVS(Adaptive Voltage Scaling)
   support on OMAP containing the version 1 or version 2 of the SmartReflex IP,
 . CONFIG_POWER_AVS_OMAP_CLASS3: Class 3 implementation of Smartreflex.
Signed-off-by: NJean Pihet <j-pihet@ti.com>
Signed-off-by: NJ Keerthy <j-keerthy@ti.com>
Acked-by: NRafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: NKevin Hilman <khilman@ti.com>
Signed-off-by: NKevin Hilman <khilman@ti.com>

max17047 is improved version of max17042 chip. It has few HW bug
fixes with minor changes in register set.

max17050 is same as max17047 chip except its silicon packging. So from
driver's point of view there is no difference btw max1047 and max1050.

This patch adds the support to dynamically detect the chip type and
adds steps to initialize the max17047 chip.
Signed-off-by: NRamakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Acked-by: NEvgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

The smb347-charger driver does a lot of read-modify-write to the device
registers. Instead of open-coding everything we can take advantage of
regmap API which provides nice functions to do this kind of things.

In addition there is no need for custom debugfs file for dumping
registers as this is already provided by the regmap API.
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>