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path: root/drivers/power
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2009-08-02pcf50633: query charger status directlyPaul Fertser
Current scheme is fragile and is likely to go off sync, especially on batfull->adapter charging automatic MBC transition. Query the status bit every time we need it instead. We need to export another function to query for USB presence because we can't read anything from PCF50633 (via I2C) inside irq context and that is needed by usb gadgets. Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-08-02pcf50633: properly reenable charging when the supply conditions changePaul Fertser
If chgmod == BATFULL, setting chgena has no effect. Datasheet says we need to set resume instead but when autoresume is used resume doesn't work. Clear and set chgena instead. This enables a user to force charging by re-plugging USB even when the charger entered Battery Full mode, might be handy before a long trip. Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-08-02pcf50633: get rid of charging restart software auto-triggeringPaul Fertser
After reaching Battery Full condition MBC state machine switches back into charging mode when the battery voltage falls below 96% of a battery float voltage. The voltage drop in Li-Ion batteries is marginal (1-2%) till about 80% of its capacity - which means, after a BATFULL, charging won't be restarted until 75-80%. That is a desired behaviour recommended by battery manufacturers, don't mess with it. Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-08-02gta01_battery: add charge_{now,full} propertiesPaul Fertser
Some userspace (notably Enlightment's batget) ignores "capacity" completely if there're no other properties. Expose a fake value (850mAh, typical for BL-5C) to make them happy. Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-08-02gta01_battery: generalise the driver, add capacity estimationPaul Fertser
Check if machine-specific hooks exist before calling, this allows to use this driver with gta02 or any other device that is able to provide battery voltage readings. Report an estimate of capacity percentage left, based on discharge curves. Strictly speaking, this is a violation of power_supply class specs but since this is the only driver for dumb batteries and userspace lacks any library to do the estimation itself, we have to stuff it here. Please keep in mind that this estimation is by no means accurate, usually cell phones have only 5 bars to represent charge status. Credit goes to Joerg Reisenweber and SpeedEvil for helping with gathering and analysing the data. Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-08-02gta01_battery: fix unloading bugPaul Fertser
Driver data must be properly registered after allocation Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-07-27bq27000: Return -ENODEV in bq27000_battery_get_property if the battery is notLars-Peter Clausen
If the battery is not present hdq_read will always return an error. If the drivers knows that the battery is not present the correct thing to do is to return -ENODEV instead of passing the error on. Do this for all properties except POWER_SUPPLY_PROP_PRESENT. The power supply sysfs expects us to do so, else it won't generate a proper uevent file. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
2009-06-10CONFIG_BATTERY_BQ27000_HDQ selects CONFIG_HDQ_GPIO_BITBANGLuca Capello
This is because of commit 1f06c28eaa6e77384a366c3d2ab1ccdbb8a807e0 The BQ27000 Battery requires HDQ. Otherwise the battery is not available at all. Signed-off-by: Luca Capello <luca@pca.it>
2009-06-04GTA02: bq27000 report current chargePaul Fertser
Using HAL for E's battery gadget highlighted an oddity: the kernel exposed last full charge property but didn't expose current charge property. This resulted in the wrong computation of current battery capacity by E's gadget (and probably other programs as well). This patch exposes a corresponding bq27000 register to make E battery gadget happy (it is still not showing correct values because of bugs in HAL resulting in 3 batteries (apm emulation and usb supply being bogus here) instead of one). Signed-off-by: Paul Fertser <fercerpav@gmail.com>
2009-06-01Improve battery status notificationMichael Trimarchi
This patch adds a call to cancel_delayed_work before a call to schedule_delayed_work. Signed-off-by: Michael Trimarchi <michael@panicking.kicks-ass.org> Signed-off-by: Daniel Willmann <daniel@totalueberwachung.de>
2009-05-14Avoid null pointer access on early call to pcf50633_mbc_get_statusNelson Castillo
Avoid a kernel panic during an early call to the pcf50633_mbc_get_status function.
2009-04-28GTA01: Add "present" property to power_supplyNelson Castillo
Small patch to add /sys/class/power_supply/battery/present. You must not run a GTA01 without battery thus it is always 1. Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
2009-04-23Update status batteryMichael Trimarchi
This patch adds the call to the worker in bq27000_battery_external_power_changed. Now (un)plugging the USB cable effects the battery status soon. I don't know if it is possible call the status change directly. Signed-off-by: Michael Trimarchi <michael@panicking.kicks-ass.org> Signed-off-by: Daniel Willmann <daniel@totalueberwachung.de>
2009-04-14Too many info messages for apm battery supportTim Niemeyer
Changing dev_info => dev_dbg. Signed-off-by: Tim Niemeyer <tim.niemeyer@mastersword.de>
2009-03-26Fix trivial whitespace slippage.Werner Almesberger
Signed-off-by: Werner Almesberger <werner@openmoko.org>
2009-03-26Really clean up, as promised in 1350d5dfaac7dadf6cab9e812f0acfabcce60e58Werner Almesberger
Signed-off-by: Werner Almesberger <werner@openmoko.org> Reported-by: Tim Niemeyer <tim.niemeyer@mastersword.de>
2009-03-26extend work around boot-time ordering on GTA01Tim Niemeyer
[ Werner: Documentation/CodingStyle lines 166 and 448, put blank line after local variables. ] Signed-off-by: Tim Niemeyer <reddog@mastersword.de> Signed-off-by: Werner Almesberger <werner@openmoko.org>
2009-03-25Fewer HDQ errors on 3D7KWerner Almesberger
If no battery is connected, we periodically get a burst of HDQ error messages (at least on 3D7K), interrupting whatever we're doing on the console. This patch reduces this to only one message per sequence of errors, and one more message if communication with HDQ is successful later. Signed-off-by: Werner Almesberger <werner@openmoko.org>
2009-03-11fix-hdq-suspend-level.patchAndy Green
Signed-off-by: Andy Green <andy@openmoko.com>
2009-03-04fix-hdq-timeout-overflow.patchAndy Green
Reported-by: Neil Brown <neilb@suse.de> Signed-off-by: Andy Green <andy@openmoko.com>
2009-03-03fix-hdq-sample-period-calc.patchAndy Green
Signed-off-by: Andy Green <andy@openmoko.com>
2009-03-03Subject: pcf50633_charger_detection_fix.patchBalaji Rao
X-Git-Url: http://git.openmoko.org/?p=kernel.git;a=commitdiff_plain;h=f4fd6631973dbc67a5f4708014e81ca6e610ca05 pcf50633_charger_detection_fix.patch Fix PCF50633 charger detection code. Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2009-02-26fix-hdq-increase-break-timing.patchAndy Green
This removes the unstable operation by increasing break timing from 170us to 230us, the datasheet minimum was 190us. Signed-off-by: Andy Green <andy@openmoko.com>
2009-02-26Subject: fix_gta03_fiq_stuff.patchBalaji Rao
X-Git-Url: http://git.openmoko.org/?p=kernel.git;a=commitdiff_plain;h=c94ea3d685fa6e9b24d62adb11a7ad6087b9edf5 fix_gta03_fiq_stuff.patch Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2009-02-22gta02_use_new_fiq_and_hdq_stuff.patchBalaji Rao
Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2009-02-22introduce_generic_hdq_gpio_bitbang_driver.patchBalaji Rao
Introduce a new generic HDQ gpio based bitbang driver Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2009-02-08power: pcf50633 wall charger current limit fixRask Ingemann Lambertsen
Hi. The recent patch to fix a USB current limit violation when turning the device off triggered a bug in setting the battery charge current limit. We now get a charge current limit of 0 mA on the GTA02 when plugging in the wall charger (just as when setting 1000 mA in /sys/class/[...]/chg_curlim). This patch fixes it (and a comment typo). Tested on a GTA02 with a wall charger. Signed-off-by: Rask Ingemann Lambertsen <rask@sygehus.dk>
2009-02-06MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatc ↵merge
hes-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414-1233879505 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414-1233879505 / 1c405b6ccee468298e7ccbfd9a3a3f4d123207b0 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414 stable-tracking-hist top was MERGE-via-mokopatches-tracking-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011-1233879414 / 71be0a45396066b1f8f27f8f4f87937247a129e1 ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011 mokopatches-tracking-hist top was MERGE-via-master-MERGE-via-master-hist-1232625318-1233879011 / 1be1b01373f572a02c6f1f99863c8c11ed2f9f5b ... parent commitmessage: From: merge <null@invalid> MERGE-via-master-MERGE-via-master-hist-1232625318 master top was MERGE-via-master-hist-1232625318 / dd4b117123ae66451695810017eb72fbdfc05df5 ... parent commitmessage: From: merge <null@invalid> MERGE-master-patchset-edits
2009-02-05fix-pcf50633-set-charging-limit-with-usb-limit.patchAndy Green
Cedric noticed that when he turned his GTA02 OFF while hooked to a "dumb" USB charger that should only be asked for 100mA, suddenly much more current was demanded. When PMU enters PMU standmy when we go OFF, its USB current limit is reset to the variant default of 500mA. Since we previously had the charging current limit fixed at 1A, it meant we immediately charge at 500mA. This patch makes the charging limit follow the USB current limit, so that even when we go off, no more than the last authorized amount of current will be taken, even if the USB current limit is later broken by the variant default. Reported-by: Cedric Berger <cedric.berger74@gmail.com> Signed-off-by: Andy Green <andy@openmoko.com>
2009-01-29 pcf50633_charging_current_control.patchBalaji Rao
Introduces battery charging current control. Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2009-01-28Subject: pcf50633_introduce_charging_restart_interval.patchBalaji Rao
X-Git-Url: http://git.openmoko.org/?p=kernel.git;a=commitdiff_plain;h=1bb6adaa6a59f52d616b5260cb776eafd40ef05e pcf50633_introduce_charging_restart_interval.patch Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2009-01-28Subject: pcf50633_remove_set_charger_status.patchBalaji Rao
X-Git-Url: http://git.openmoko.org/?p=kernel.git;a=commitdiff_plain;h=94808ce02deeb78bb3728db416fd4b7544b6d232 pcf50633_remove_set_charger_status.patch
2009-01-28Subject: pcf50606_rebase_changes,patchBalaji Rao
X-Git-Url: http://git.openmoko.org/?p=kernel.git;a=commitdiff_plain;h=938eddf17625cce0307f7612a3ea2560384e2384 pcf50606_rebase_changes,patch This patch brings into andy-tracking all changes related to pcf50606 from old balaji-tracking.
2009-01-28From: Sean McNeil <sean@mcneil.com>Andy Green
fix-ac-redefinition.patch
2009-01-27fix-pcf50633-from-balaji-tree.patchAndy Green
Signed-off-by: Andy Green <andy@openmoko.com>
2009-01-27fix-kconfig-stray-endif.patchAndy Green
Signed-off-by: Andy Green <andy@openmoko.com>
2009-01-22MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatc ↵merge
hes-tracking-fix-stray-endmenu-patch-1232632040-1232632141 pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green <andy@openmoko.com> fix-stray-endmenu.patch Signed-off-by: Andy Green <andy@openmoko.com>
2008-12-29Move charger initialization from core to mbc driver.Balaji Rao
When irq_handler is called from core, the irqs might not have been yet registered - which means, the initial charger state was not being set properly. Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2008-12-29Kill automatic charging restart to retain manual control.Balaji Rao
Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2008-12-29Manually restart charger periodicallyBalaji Rao
This avoids excessive discharges seen in case of Li-ion batteries even when charger is connected. Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2008-12-29Start charging when the usb current limit is changed.Balaji Rao
This makes sure that charging status remains correct when currrent limit is altered from userspace. Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
2008-12-08MERGE-andy-tracking-patchset-edits-revert-power-patchesmerge
Whoops this is just reverting a couple of patches that were not ready to be committed yet.
2008-12-08MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-fix-s3c2410_ts-fif ↵merge
o-allocation-1228776491 pending-tracking-hist top was MERGE-via-stable-tracking-fix-s3c2410_ts-fifo-allocation-1228776491 / a85a8a282939b4f6800081f67e1d568e0b97bd7a ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-fix-s3c2410_ts-fifo-allocation stable-tracking-hist top was fix-s3c2410_ts-fifo-allocation / 56a57ba0d4c1d60869250d5f89fae61544f01012 ... parent commitmessage: From: Nelson Castillo <nelsoneci@gmail.com> Fix s3c2410_ts FIFO allocation When I added the FIFO improving the interrupts handlers I introduced a bug. The FIFO is allocated after the interrupts are requested. This makes the kernel crash if the touchscreen generates activity before the allocation takes place. This patch fixes the bug. I reproduced it and tested the fix in a GTA02. - Fix bug - Fix a typo Reported-by: Andy Green <andy@openmoko.com> Signed-off-by: Nelson Castillo <nelsoneci@gmail.com>
2008-12-02PATCH-add-ac-charger-power_supply.emlSean McNeil
This adds an appropriate ac power_supply class and shows usb only when at the appropriate current limit. Signed-off-by: Sean McNeil <sean@mcneil.com>
2008-11-26MERGE-via-balaji-tracking-hist-MERGE-via-stable-tracking-hist-MERGE-via-moko ↵merging other branches
patches-tracking-via-master-s3c-hsmmc-clean balaji-tracking-hist top was efb2d57c0e0ed62324d79d6c5793fe797c157266
2008-11-21fix-merge-add-new-file.patchAndy Green
Signed-off-by: Andy Green <andy@openmoko.com>
2008-11-21MERGE-via-balaji-tracking-balaji-updatesAndy Green
Signed-off-by: Andy Green <andy@openmoko.com>
2008-11-20pcf50633_mdc_related_changes.patchBalaji Rao
Changes related to pcf50633_mfd.patch
2008-11-19fix-hdq-fiq-interface.patchSean McNeil
Try to make sure about no compiler malarky by volatile. Change hdq busy detect. Change error handling path in hdq interface to fiq. Signed-off-by: Sean McNeil <sean@mcneil.com>
2008-11-19fix-hdq-child-attach-callback.patchAndy Green
Along the same lines as FIQ, HDQ can have children in device tree terms too. Allow the same kind of callback in machine-specific code Signed-off-by: Andy Green <andy@openmoko.com>
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