A Legacy USB charger should be handled directly by the charger
driver.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMarcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: NKarl KOMIEROWSKI <karl.komierowski@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Cleanup of the ab8500_charger driver.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMarcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: NKarl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Add support for the battery over-voltage situation
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NHakan Berg <hakan.berg@stericsson.com>
Reviewed-by: NKarl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

BTEMP thermal compensation factor times 10 is applied in two places, probe
and get_property. Removed from probe.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NHakan Berg <hakan.berg@stericsson.com>
Reviewed-by: NKarl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Round the capacity values for better enduser experience.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: Npender01 <peter.enderborg@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Tested-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

The Travel and Carkit adapter should be handled directly by
the charger driver.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMarcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Ignore the low btemp interrupts for ab8500 3.0 and 3.3
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NHakan Berg <hakan.berg@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Tested-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

The Linux Power Supply framework expects battery temperatures to have
a resolution of 0.1 degree Celsius; however, the AB8500 btemp driver
supplies a battery temperature resolution of 1 degree Celsius. We
therefore have to use a factor 10 on the measured values.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

In case of time out error IRQ needs to be disabled
otherwise we will get unbalanced enable/disable pairs.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NRickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Today the battery recharge is determined with a voltage threshold. This
voltage threshold is only valid when the battery is relaxed. In charging
algorithm the voltage read is the loaded battery voltage and no
compensation is done to get the relaxed voltage. When maintenance
charging is not selected, this makes the recharging condition to almost
immediately activate when there is a discharge present on the battery.

Depending on which vendor the battery comes from this behavior can wear
out the battery much faster than normal.

The fuelgauge driver is responsible to monitor the actual battery
capacity and is able to estimate the remaining capacity. It is better to
use the remaining capacity as a limit to determine when battery should
be recharged.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMarcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: NHakan BERG <hakan.berg@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Gracefully handle gpadc conversion errors.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-by: NJohan BJORNSTEDT <johan.bjornstedt@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Doing so provides a greater degree of accuracy when dealing with
time-frames between 1us and 20ms. msleep() is only accurate for
wake-ups greater than 20ms.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: NJohan BJORNSTEDT <johan.bjornstedt@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Add two new work queues to provide USB and AC charger disconnect
detection.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

When enabling the CCEOC irq we might get false interrupt
from ab8500-driver due to the latched value will be saved
and interpreted as an IRQ when enabled
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJohan Bjornstedt <johan.bjornstedt@stericsson.com>
Signed-off-by: NHenrik Solver <henrik.solver@stericsson.com>
Reviewed-by: NKarl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Rename the ab8500_power_loss_handling function to a more
descriptive name ab8500_enable_disable_sw_fallback
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NRobert Marklund <robert.marklund@stericsson.com>
Reviewed-by: NPar-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Reviewed-by: NKarl KOMIEROWSKI <karl.komierowski@stericsson.com>
Tested-by: NPar-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Avoid accessing vc_tbl_ref[3], which is one past the end of that array, in
da9052_determine_vc_tbl_index(), by adjusting the loop bound.

(Hint: there is 'i + 1' inside the loop.)
Signed-off-by: NNickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

use devm_kzalloc and no need of error path and unload frees.
Signed-off-by: NDevendra Naga <devendra.aaru@gmail.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Use 'platform_device' in kernel messages rather than i2c client device
node. lp8788_update_charger_params() needs additional argument, 'pdev'.
Then, remove unnecessary lp8788 private data in lp8788_irq_register().
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

The lp8788-charger is a platform driver of lp8788-mfd. The platform device
is allocated when mfd_add_devices() is called in lp8788-mfd. On the other
hand, 'lp->dev' is the i2c client device.

Therefore, this 'platform_device' is a proper parent device in case of
resource managed mem alloc and device kernel message.
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Some devices, Buffalo Linkstation LS-XHL and LS-CHLv2 for example,
power-off by restarting to letting u-boot hold the SoC until the user
presses a key. Add a generic driver to implement this. It binds a function
to pm_power_off, which calls arm_pm_restart.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Tested-by: NMichael Walle <michael@walle.cc>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

The QNAP NAS boxes have a microcontroller attached to the SoCs second
serial port. By sending it a simple command, it will turn the power for
the board off. This driver registers a function for pm_power_off to send
such a command.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Cc: Anton Vorontsov <cbou@mail.ru>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: NBryan Wu <cooloney@gmail.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

devm_kzalloc should not be followed by kfree, as this results in a double
free.  The problem was found using the following semantic match
(http://coccinelle.lip6.fr/):

// <smpl>
@@
expression x,e;
@@
x = devm_kzalloc(...)
... when != x = e
?-kfree(x,...);
// </smpl>

Furthermore, in the remove function, the calls to free_irq are moved up to
prevent a possible reference in the interrupt handler to resources freed by
power_supply_unregister.
Signed-off-by: NJulia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

devm_regulator_get() is device managed and makes error handling and code
cleanup simpler.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NArun Murthy <arun.murthy@stericsson.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

commit a66f59ba

    bq27x00_battery: Add support for BQ27425 chip

introduced 2 bugs.

1/ 'chip' was set to BQ27425 unconditionally - breaking support for
   other devices;

2/ BQ27425 does not support cycle count, how the code still tries to
   get the cycle count for BQ27425, and now does it twice for other chips.
Signed-off-by: NNeilBrown <neilb@suse.de>
Cc: Saranya Gopal <saranya.gopal@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

As most of the charger chips come with two kinds of safety features
related to timing:

1. Watchdog Timer (interms of seconds/mins)
2. Safety Timer (interms of hours)

This patch adds these to fault causes in POWER_SUPPLY_PROP_HEALTH_* enums
so that whenever there is either watchdog timeout or safety timer timeout
driver could notify the user space accurately about the fault and will
also be helpful for debug.
Signed-off-by: NRamakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

devm_kzalloc is device managed and makes error handling and code cleanup a
bit simpler.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

module_i2c_driver() makes the code simpler by eliminating module_init and
module_exit calls.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

<linux/version.h> is not required here.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

Conflicts:
	drivers/power/ab8500_bmdata.c

ab8500_fg driver prepares instance list of fuelgauge which is required by
btemp driver for battery identification. So make sure that ab8500
fuelgauge list is ready before btemp driver starts.
Signed-off-by: NRajanikanth H.V <rajanikanth.hv@stericsson.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

DT property 'stericsson,battery-type' shall be one of supported technology
type
Signed-off-by: NRajanikanth H.V <rajanikanth.hv@stericsson.com>
Acked-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NAnton Vorontsov <anton@enomsg.org>

There's no need to test whether a (delayed) work item in pending
before queueing, flushing or cancelling it.  Most uses are unnecessary
and quite a few of them are buggy.

Remove unnecessary pending tests and rewrite _setup_polling() so that
it uses mod_delayed_work() if the next polling interval is sooner than
currently scheduled.  queue_delayed_work() is used otherwise.

Only compile tested.  I noticed that two work items - setup_polling
and cm_monitor_work - schedule each other.  It's a very unusual
construct and I'm fairly sure it's racy.  You can't break such
circular dependency by calling cancel on each.  I strongly recommend
revising the mechanism.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Donggeun Kim <dg77.kim@samsung.com>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: NAnton Vorontsov <anton.vorontsov@linaro.org>

This patch split _probe function for readability because _probe function
is longer than 400 line.
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>

Pull LED fix from Bryan Wu.

* 'fixes-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: leds-gpio: set devm_gpio_request_one() flags param correctly

commit a99d76f9 leds: leds-gpio: use gpio_request_one

changed the leds-gpio driver to use gpio_request_one() instead
of gpio_request() + gpio_direction_output()

Unfortunately, it also made a semantic change that breaks the
leds-gpio driver.

The gpio_request_one() flags parameter was set to:

GPIOF_DIR_OUT | (led_dat->active_low ^ state)

Since GPIOF_DIR_OUT is 0, the final flags value will just be the
XOR'ed value of led_dat->active_low and state.

This value were used to distinguish between HIGH/LOW output initial
level and call gpio_direction_output() accordingly.

With this new semantic gpio_request_one() will take the flags value
of 1 as a configuration of input direction (GPIOF_DIR_IN) and will
call gpio_direction_input() instead of gpio_direction_output().

int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
{
..
	if (flags & GPIOF_DIR_IN)
		err = gpio_direction_input(gpio);
	else
		err = gpio_direction_output(gpio,
				(flags & GPIOF_INIT_HIGH) ? 1 : 0);
..
}

The right semantic is to evaluate led_dat->active_low ^ state and
set the output initial level explicitly.
Signed-off-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reported-by: NArnaud Patard <arnaud.patard@rtp-net.org>
Tested-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: NBryan Wu <cooloney@gmail.com>

Pull watchdog fixes from Wim Van Sebroeck:
 "This fixes some small errors in the new da9055 driver, eliminates a
  compiler warning and adds DT support for the twl4030_wdt driver (so
  that we can have multiple watchdogs with DT on the omap platforms)."

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: twl4030_wdt: add DT support
  watchdog: omap_wdt: eliminate unused variable and a compiler warning
  watchdog: da9055: Don't update wdt_dev->timeout in da9055_wdt_set_timeout error path
  watchdog: da9055: Fix invalid free of devm_ allocated data