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Commit Graph

348213 Commits

Author SHA1 Message Date
Anton Vorontsov
58a1c154d4 Merge branch 'tb-power-2' of git://git.linaro.org/people/ljones/linux-3.0-ux500
Pull a huge ab8500/pm2301 pile of changes from Lee Jones. Lee did an
awesome job cleaning this stuff up and thus brought ab8500 Stericsson's
development tree much closer to the mainline. Even more changes to come,
though.

Conflicts:
	drivers/power/Kconfig
2013-02-02 19:29:13 -08:00
Rajanikanth H.V
eeb0751c99 ab8500_btemp: Demote initcall sequence
Power supply subsystem creates thermal zone device for the property
'POWER_SUPPLY_PROP_TEMP' which requires thermal subsystem to be ready
before 'ab8500 battery temperature monitor' driver is initialized. ab8500
btemp driver is initialized with subsys_initcall whereas thermal subsystem
is initialized with fs_initcall which causes
thermal_zone_device_register(...) to crash since the required structure
'thermal_class' is not initialized yet:

Unable to handle kernel NULL pointer dereference at virtual address 000000a4
pgd = c0004000
[000000a4] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0    Tainted: G        W     (3.8.0-rc4-00001-g632fda8-dirty #1)
PC is at _raw_spin_lock+0x18/0x54
LR is at get_device_parent+0x50/0x1b8
pc : [<c02f1dd0>]    lr : [<c01cb248>]    psr: 60000013
sp : ef04bdc8  ip : 00000000  fp : c0446180
r10: ef216e38  r9 : c03af5d0  r8 : ef275c18
r7 : 00000000  r6 : c0476c14  r5 : ef275c18  r4 : ef095840
r3 : ef04a000  r2 : 00000001  r1 : 00000000  r0 : 000000a4
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5787d  Table: 0000404a  DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0xef04a238)
Stack: (0xef04bdc8 to 0xef04c000)
[...]
[<c02f1dd0>] (_raw_spin_lock+0x18/0x54) from [<c01cb248>] (get_device_parent+0x50/0x1b8)
[<c01cb248>] (get_device_parent+0x50/0x1b8) from [<c01cb8d8>] (device_add+0xa4/0x574)
[<c01cb8d8>] (device_add+0xa4/0x574) from [<c020b91c>] (thermal_zone_device_register+0x118/0x938)
[<c020b91c>] (thermal_zone_device_register+0x118/0x938) from [<c0202030>] (power_supply_register+0x170/0x1f8)
[<c0202030>] (power_supply_register+0x170/0x1f8) from [<c02055ec>] (ab8500_btemp_probe+0x208/0x47c)
[<c02055ec>] (ab8500_btemp_probe+0x208/0x47c) from [<c01cf0dc>] (platform_drv_probe+0x14/0x18)
[<c01cf0dc>] (platform_drv_probe+0x14/0x18) from [<c01cde70>] (driver_probe_device+0x74/0x20c)
[<c01cde70>] (driver_probe_device+0x74/0x20c) from [<c01ce094>] (__driver_attach+0x8c/0x90)
[<c01ce094>] (__driver_attach+0x8c/0x90) from [<c01cc640>] (bus_for_each_dev+0x4c/0x80)
[<c01cc640>] (bus_for_each_dev+0x4c/0x80) from [<c01cd6b4>] (bus_add_driver+0x16c/0x23c)
[<c01cd6b4>] (bus_add_driver+0x16c/0x23c) from [<c01ce54c>] (driver_register+0x78/0x14c)
[<c01ce54c>] (driver_register+0x78/0x14c) from [<c00086ac>] (do_one_initcall+0xfc/0x164)
[<c00086ac>] (do_one_initcall+0xfc/0x164) from [<c02e89c8>] (kernel_init+0x120/0x2b8)
[<c02e89c8>] (kernel_init+0x120/0x2b8) from [<c000e358>] (ret_from_fork+0x14/0x3c)
Code: e3c3303f e5932004 e2822001 e5832004 (e1903f9f)
---[ end trace ed9df72941b5bada ]---

Signed-off-by: Rajanikanth H.V <rajanikanth.hv@stericsson.com>
Cc: stable@vger.kernel.org
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-02-02 19:19:36 -08:00
Evgeny Romanov
7cee9aefda ds2782_battery: Add power_supply_changed() calls for proper uevent support
This patch affects on Android battery indicator. Battery driver should
send uevent message when battery status changes in order to get Android
battery level dynamically updated. Delayed work was added to periodically
check battery status and capacity.

Signed-off-by: Evgeny Romanov <romanov@neurosoft.ru>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-02-02 19:07:34 -08:00
Mike Lockwood
84d7b76874 power: Add battery driver for goldfish emulator
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: Mike A. Chan <mikechan@google.com>
[cleanup and x86 support]
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com>
Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
[ported to 3.4]
Signed-off-by: Tom Keel <thomas.keel@intel.com>
[ported to 3.7 and final tidy]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-02-02 19:06:34 -08:00
Paer-Olof Haakansson
34c11a709e u8500-charger: Delay for USB enumeration
If charging is started before USB enumeration of an Accessory
Charger Adapter has finished, the AB8500 will generate a
VBUS_ERROR. This in turn results in timeouts and delays the
enumeration with around 15 seconds. This patch delays the
charging and then ramps currents slowly to avoid VBUS errors.
The delay allows the enumeration to have finished before
charging is turned on.

Signed-off-by: Martin Sjoblom <martin.w.sjoblom@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:22 +00:00
Lee Jones
97034a1e04 ab8500-bm: Remove individual [charger|btemp|fg|chargalg] pdata structures
None of the aforementioned components have their own dedicated
platform data structures anymore. Instead they have all been
merged into one big Battery Management container. Let's remove
them and place all the nice newly added attributes into the core
container.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-01-23 14:39:21 +00:00
Jonas Aaberg
0ed5107fa8 ab8500-charger: Do not touch VBUSOVV bits
Do not touch the VBUSOVV in USBCHTRL2 when running on AB8505.

Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Tested-by: Mian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>
2013-01-23 14:39:20 +00:00
Rajkumar Kasirajan
1a793a1089 ab8500-fg: Use correct battery charge full design
If battery is not identified while fg probe, mah_max_design gets
initialized with unknown battery's charge full design. Reinitialize
mah_max_design if battery is identified after fg probe.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Vijaya Kumar K-1 <vijay.kilari@stericsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Olivier CLERGEAUD <olivier.clergeaud@stericsson.com>
Reviewed-by: Arun MURTHY <arun.murthy@stericsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Tested-by: Rupesh KUMAR <rupesh.kumar@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:20 +00:00
Lee Jones
3988043b0e pm2301: LPN mode control support
The AC charger plug-in detection while booting causes I2C read
failure if AC charger is not connected. Now the LPN pin is enabled
for every PM2301 register access, which solves the issue.

Signed-off-by: Rupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Vijaya Kumar K-1 <vijay.kilari@stericsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:19 +00:00
Rajkumar Kasirajan
e41f39ea2a pm2301: Enable vbat low monitoring
Enable support for low battery checking.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:19 +00:00
Jonas Aaberg
53ef1f590d ab8500-bm: Flush all work queues before suspending
Flush all workqueues at suspend time to avoid suspending during work.

Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
2013-01-23 14:39:18 +00:00
Martin Bergström
ffaa39d9ed ab8500-fg: Go to INIT_RECOVERY when charger removed
When the charger is removed we need to go to INIT_RECOVERY
state instead of directly to RECOVERY state.

Signed-off-by: Martin Bergstrom <martin.bergstrom@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:17 +00:00
Nicolas Guion
b016322293 ab8500-charger: Add support for autopower on AB8505 and AB9540
Accessing autopower register fails on the AB8505 and ab9540 as
the fallback software control register has moved.

Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com>
Reviewed-by: Nicolas GUION <nicolas.guion@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:17 +00:00
Lee Jones
c9ade0fca3 abx500-chargalg: Add new sysfs interface to get current charge status
Allow a user to check on AB8500 charging status from debugfs.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-01-23 14:39:16 +00:00
Loic Pallardy
e07a56453b pm2301: Update watchdog for pm2xxx support
AB and PMxxx doesn't have same watchdog refresh period. Add watchdog
to refresh period parameters in x500 charger structure, this should
kick watchdog every 30sec. The AC charging should also kick both
pm2xxx and the AB charger watchdog.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Loic Pallardy <loic.pallardy@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 14:39:15 +00:00
Lee Jones
e3455002d0 ab8500-chargalg: Only root should have write permission on sysfs file
Only root should have write permission on sysfs file ab8500_chargalg/chargalg.

Cc: stable@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-01-23 14:39:15 +00:00
Loic Pallardy
8757a08ea2 pm2301: Remove volt_now & curr_now properties
There is no support to measure the main charger voltage and
current using AB9540 gpadc. Therefore this has been removed
from the driver.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com>
2013-01-23 14:39:14 +00:00
Olivier Clergeaud
006f82d67c pm2301: Clean-up PM2301 interrupt management
Fix the way interrupts are handled within the PM2301 charging driver.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Olivier CLERGEAUD <olivier.clergeaud@stericsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com>
2013-01-23 14:39:13 +00:00
Lee Jones
2fa5b0f4a5 pm2301: Move all configuration and emum structs out to a header file
Also shift the file description to a more suitable location.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-01-23 14:39:13 +00:00
Lee Jones
d80108fc69 ab8500-chargalg: Update battery health on safety timer exp
When the charging safety timer elapses, the battery health is
shown as "Good". This is misleading and also makes it difficult
to distinguish issues relating to discharging despite the fact
that the charger is still connected.

When in actual fact a safety timer elapse is an indication of a
fault in the battery. Here we make this clearer by reporting
POWER_SUPPLY_HEALTH_UNSPEC_FAILURE instead.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-01-23 11:33:05 +00:00
Lee Jones
3edebfcdb3 ab8500-charger: Kick watchdog
Kicks the watchdog so charging will not stop.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-01-23 11:33:05 +00:00
Michel JAOUEN
e6aac611b8 ab8500-btemp: Adaptation to AB8505 and AB9540 platforms
Add AB9540 and AB8505 support to ABx500 BTEMP driver.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>
2013-01-23 11:33:04 +00:00
Hakan Berg
75f2a219ff ab8500-fg: Adjust for RF bursts voltage drops
Changed conditions for restarting low battery measurements counter
and adjusted the interval between measurements to avoid RF burst
induced voltage drops, and to shorten time to decide to shut down.

Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Signed-off-by: Martin Bergstrom <martin.bergstrom@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
2013-01-23 11:33:03 +00:00
Henrik Sölver
ff38090aa2 ab8500-charger: AB workaround for invalid charger
AB8500 refuses to start charging when some types of non standard
chargers are connected. This change force the AB to start charging.

Signed-off-by: Henrik Sölver <henrik.solver@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Yvan FILLION <yvan.fillion@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Yvan FILLION <yvan.fillion@stericsson.com>
2013-01-23 11:33:03 +00:00
Michel JAOUEN
01ec8c5423 pm2301: Provide u9540 support for the pm2301 charger
AC charger driver for the DB9540 based platforms.

Signed-off-by: Rajkumar Kasirajan <rajkumar.kasirajan@stericsson.com>
Signed-off-by: Loic Pallardy <loic.pallardy@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Michel JAOUEN <michel.jaouen@stericsson.com>
Tested-by: Michel JAOUEN <michel.jaouen@stericsson.com>
2013-01-23 11:33:02 +00:00
Andrew Lunn
8fd526fd18 qnap-poweroff: Fix license string
GPLv2+ is not a valid license string. Replace it with one that is.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-19 18:04:04 -08:00
Lee Jones
41ce25657b ab8500_fg: Remove pointless round_jiffies() call
As HZ is a full-second, there is little point in rounding it.
Let's save a few cycles by using HZ directly.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:46 -08:00
Paer-Olof Haakansson
f902dadc12 ab8500_fg: Overflow in current calculation
When calculating the average current the nominator will
overflow when the charging current is high.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Henrik Sölver <henrik.solver@stericsson.com>
Reviewed-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:44 -08:00
Marcus Cooper
4b45f4a9cd ab8500_charger: Adds support for legacy USB chargers
A Legacy USB charger should be handled directly by the charger
driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:42 -08:00
Marcus Cooper
377345c2be ab8500_charger: Remove unused defines
Cleanup of the ab8500_charger driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:40 -08:00
Hakan Berg
8bcf3b39a8 ab8500_fg: Added support for BATT_OVV
Add support for the battery over-voltage situation

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:38 -08:00
Hakan Berg
0cdaf9a900 ab8500_btemp: Remove superfluous BTEMP thermal comp
BTEMP thermal compensation factor times 10 is applied in two places, probe
and get_property. Removed from probe.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:36 -08:00
pender01
6eaf8740da ab8500_fg: Round capacity output
Round the capacity values for better enduser experience.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: pender01 <peter.enderborg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:34 -08:00
Hakan Berg
74a8e349b1 ab8500_bm: Adds support for Car/Travel Adapters
The Travel and Carkit adapter should be handled directly by
the charger driver.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:32 -08:00
Hakan Berg
d36e3e6d50 ab8500_btemp: Ignore false btemp low interrupt
Ignore the low btemp interrupts for ab8500 3.0 and 3.3

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Hakan Berg <hakan.berg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Marcus COOPER <marcus.xm.cooper@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:30 -08:00
Lee Jones
5b41aa9f2b ab8500_btemp: Allign battery temperature resolution with the framework
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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:28 -08:00
Rickard Andersson
129d583b44 ab8500_fg: Balance IRQ enable
In case of time out error IRQ needs to be disabled
otherwise we will get unbalanced enable/disable pairs.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:44:26 -08:00
Marcus Cooper
ea40240178 ab8500_bm: Recharge condition not optimal for battery
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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Marcus Cooper <marcus.xm.cooper@stericsson.com>
Reviewed-by: Hakan BERG <hakan.berg@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:43:46 -08:00
Jonas Aaberg
a864c5a869 ab8500_charger: Handle gpadc errors
Gracefully handle gpadc conversion errors.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-by: Johan BJORNSTEDT <johan.bjornstedt@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:35:21 -08:00
Jonas Aaberg
9a0bd070fd ab8500_fg: Replace msleep() with usleep_range() for greater accuracy
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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonas ABERG <jonas.aberg@stericsson.com>
Reviewed-by: Johan BJORNSTEDT <johan.bjornstedt@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:35:19 -08:00
Lee Jones
b269fff4f9 ab8500_charger: Detect charger removal
Add two new work queues to provide USB and AC charger disconnect
detection.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:35:12 -08:00
Johan Bjornstedt
3988a4df34 ab8500_bm: Skip first CCEOC irq for instant current
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: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Johan Bjornstedt <johan.bjornstedt@stericsson.com>
Signed-off-by: Henrik Solver <henrik.solver@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:10:17 -08:00
Paer-Olof Haakansson
defbfa9cf8 ab8500_charger: Rename the power_loss function
Rename the ab8500_power_loss_handling function to a more
descriptive name ab8500_enable_disable_sw_fallback

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Robert Marklund <robert.marklund@stericsson.com>
Reviewed-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Tested-by: Par-Olof HAKANSSON <par-olof.hakansson@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-15 17:10:16 -08:00
Nickolai Zeldovich
c4f3422630 da9052-battery: Avoid out-of-range array access
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: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:34:26 -08:00
Devendra Naga
00edfc65c2 max17040_battery: Use devm_kzalloc
use devm_kzalloc and no need of error path and unload frees.

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:18:58 -08:00
Kim, Milo
d5c2b14cb2 lp8788-charger: Fix a parent device in kernel messages
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: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:18:43 -08:00
Kim, Milo
05ac539b4f lp8788-charger: Fix a parent device in _probe()
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: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:18:19 -08:00
Andrew Lunn
ffd8f9a727 power/reset: Add a new driver implementing 'power off by restarting'
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: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:00:31 -08:00
Andrew Lunn
e8fc721a9a power/reset: Add a new driver to turn QNAP board power off
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: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 14:00:23 -08:00
Kim, Milo
22f1229fe9 MAINTAINERS: Add LP8788 MFD driver entry
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: Milo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
2013-01-06 13:20:07 -08:00