The LED Indicator feature allows indicating through a led when the
PM2301 battery charging is active. SW shall not disable this LED.
Signed-off-by: NRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

This patch restricts use of LPN pin to C2C boards to avoid
conflict on HSI for GPIO 60 use.
Signed-off-by: NBenoit GAUTHIER <benoit.gauthier-xsig@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMustapha BEN-ZOUBEIR <mustapha.ben.zoubeir-xsig@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Tested-by: NBenoit GAUTHIER <benoit.gauthier-xsig@stericsson.com>

Signed-off-by: NLee Jones <lee.jones@linaro.org>

deprecate some boilerplate code by using module_platform_driver
helper macro. No functional changes.
Signed-off-by: Nsrinidhi kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Some of the headers and defines accrued over time are no longer
in use. Let's take the opportunity to remove a few of them.
Signed-off-by: NRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

Only AB8500 has this hardware bug, so these works only need to be run
there.
Signed-off-by: NRabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NMartin SJOBLOM <martin.w.sjoblom@stericsson.com>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>

To optimize the current consumption we use pm_runtime autosuspend
functions which execute the pm_runtime_suspend after a delay of
inactivity on the other hand we use pm_runtime_resume every time
we receive an interruption to wake up the pm2301.
Signed-off-by: NM BenZoubeir <mustapha.ben.zoubeir-xsig@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

Signed-off-by: NM BenZoubeir <mustapha.ben.zoubeir-xsig@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

When the state of USB Charge detection is changed then the calls
use a define for another register in other bank. This change
creates a new define for the correct register and removes the
magic numbers that are present.
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: NJonas ABERG <jonas.aberg@stericsson.com>

Timers used for charging safety and maintenance must work even when
CPU power has collapsed. By using hrtimers with the realtime clock
the system is able to trigger an alarm that wakes-up the CPU and makes
it possible to handle events.

Allow a little slack time of 5 minutes for the hrtimers to allow CPU
to be woken-up in a more optimal power saving way. A 5 minute delay
to time-out timers relative to hours does not impact on safety.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Charging watchdog kicker work-thread gets started twice causing
'failed to kick watchdog' message after removing charger and
when re-inserting charger. This patch removes the superfluous
start of watchdog kicker-thread.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

The newer AB's such as the AB8505, AB9540 etc include a
USBLink1 Status register which detects a larger range of
external devices. This should be used instead of the
USBLine Status register.
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: NJonas ABERG <jonas.aberg@stericsson.com>
Tested-by: NYang QU <yang.qu@stericsson.com>

Provide AB8540 platform specific information required to run the
Battery Management subsystem on AB8540 based devices. For this to
happen we see the introduction of separate platform specific data
structures and a means in which to process them.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Due to btemp filtering enabled during init, temp values reported
to charge algorithm driver started from 0. As a result,charge
algorithm was going into wrong state and charging was stopped.
Signed-off-by: NRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NMartin SJOBLOM <martin.w.sjoblom@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

AB8540 supports power path function in USB charging mode for fast
power up with dead and weak battery, and it could extend
the battery age.

When USB charging starts, if the Vbattrue is below than SW cut off
voltage, power path and pre-charge should be enabled. If Vbattrue
is higher than SW cut off voltage, power path and pre-charge should
be disabled. This is to make sure full current to battery charge.
At the end of charge, power path should be enable again to reduce
charging the battery again.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

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>

The AB8505 does not have the same address for USB link-status
as has ab8500. Add AB8505_USB_LINK_STATUS and code to switch
to correct constant.
Signed-off-by: NHakan Berg <hakan.berg@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NRabin VINCENT <rabin.vincent@stericsson.com>

When battery capacity was going below 1% fg is not supposed
to report 0% unless we've got the LOW_BAT IRQ, no matter
what the FG-algorithm says. This made fg get stuck at 1% if
charger is connected when capacity is 1%.
Signed-off-by: NHakan BERG <hakan.berg@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NSrinidhi KASAGAR <srinidhi.kasagar@stericsson.com>

Battery tempreature readings sometimes fail and results in
a value far from recent values. This patch adds a software
filter that disposes such readings, by allowing direct
updates on temperature only if two samples result in the
same temperature. Else only allow 1 degree change from previous
reported value in the direction of the new measurement.
Signed-off-by: NHakan Berg <hakan.berg@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NMartin SJOBLOM <martin.w.sjoblom@stericsson.com>
Reviewed-by: NRabin VINCENT <rabin.vincent@stericsson.com>

When in suspend state, upon plug-in of external AC charger the
device needs to wake-up and charging operation started.
Signed-off-by: NRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

This patch adds support for die temperature thermal protection
in pm2301 driver.
Signed-off-by: NRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NHakan BERG <hakan.berg@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

Do not set higher current in stepping functionality if VBUS is dropping.
After VBUS has dropped try to set current once again. If dropping again
then we have found the maximum capability of the charger.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Signed-off-by: NMustapha Ben Zoubeir <mustapha.ben.zoubeir-nonst@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Tested-by: NOlivier CLERGEAUD <olivier.clergeaud@stericsson.com>

Force main charger detect in turn on status.
Signed-off-by: NRajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: NPer Forlin <per.forlin@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Tested-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>

Fix for charging not getting enabled in charge only mode by
external charger.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Added support for main charger over voltage protection.
Signed-off-by: NRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Tested-by: NMichel JAOUEN <michel.jaouen@stericsson.com>

Due to a bug in some AB8500 ASICs charger removal cannot always
be detected if the removal and reinsertion is done to close in time.
This patch detects above described case and handles the situation
so that charging will be kept turned on.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Enforce the white space character after 'if'.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Add 2.7v, 2.9v, 3.0v, 3.2v and 3.3v charging voltages for backup
battery. Before that only 2.5v, 2.6v, 2.8v, 3.1v were available.
Signed-off-by: NYang QU <yang.qu@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMaxime COQUELIN <maxime.coquelin@stericsson.com>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Tested-by: NXiao Mei ZHANG <xiaomei.zhang@stericsson.com>

Unscaled capacity should be reported for POWER_SUPPLY_PROP_CAPACITY.
Signed-off-by: NMartin Bergstrom <martin.bergstrom@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMarcus COOPER <marcus.xm.cooper@stericsson.com>
Tested-by: NJonas ABERG <jonas.aberg@stericsson.com>

Add support for a power cut feature which allows user to
configure when ab8505 and ab8540 based platforms should shut
down system due to low battery.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

Any platform can be dynamically probed for model and version number
provided the AB8500 MFD parent device pointer is available. This
patch obtains that pointer and stores it in a locally controlled
struct for later use.
Signed-off-by: NLee Jones <lee.jones@linaro.org>

End of charging is managed by SW.
Signed-off-by: NRajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Tested-by: NJonas ABERG <jonas.aberg@stericsson.com>

Signed-off-by: NLee Jones <lee.jones@linaro.org>

Just lots of white space corrections, changing some of the 4 space
tabs to 8 and pulling back some of the double tabbing back into
singles, such as the remaining of the driver.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

Make use of the hierarchical interrupt rergister called
ITLatchHier1 - 3 also for the 8500 platform (currently the
hierarchical interrupt registers are used only for the 8540
and 9540 platforms). This will make the interrupt routing
go faster since fewer i2c reads need to made in the most
common cases.
Signed-off-by: NDariusz Szymczak <dariusz.xd.szymczak@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NMian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

Use kstrtoul_from_user for getting an unsigned long from userspace
which is less error prone.
Signed-off-by: Nsrinidhi kasagar <srinidhi.kasagar@stericsson.com>
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NJonas ABERG <jonas.aberg@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

As I am working on SPARSE_IRQ a number of implicit resource
grabs in the kernel become evident. For example, some includes
like <linux/irqs.h> would implicitly include <mach/irqs.h>
and then from there <mach/db8500-regs.h>.

In many cases it is masking the fact that drivers do not
properly use resources to pass their dependencies, base
addresses etc. So write explicit #include statements with
TODO items to have this fixed the proper way to all drivers
doing this.
Signed-off-by: NLinus Walleij <linus.walleij@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

Hierarchically, the abx500-clk shall be considered as a child of the
ab8500 core. The abx500-clk is intiated at arch init and thus the clks
will be available when clients needs them.
Signed-off-by: NUlf Hansson <ulf.hansson@stericsson.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Reviewed-by: NPhilippe LANGLAIS <philippe.langlais@stericsson.com>
Reviewed-by: NPatrice CHOTARD <patrice.chotard@stericsson.com>
Reviewed-by: NGabriel FERNANDEZ <gabriel.fernandez@stericsson.com>
Reviewed-by: NPhilippe BEGNIC <philippe.begnic@stericsson.com>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>

Required to read out correct debug information from the AB chip.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Acked-by: NSamuel Ortiz <sameo@linux.intel.com>