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linux/include/linux/power
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Hans de Goede 221f7cb122 power: supply: bq27xxx: Ensure power_supply_changed() is called on current sign changes 
commit 939a116142 upstream.

On gauges where the current register is signed, there is no charging
flag in the flags register. So only checking flags will not result
in power_supply_changed() getting called when e.g. a charger is plugged
in and the current sign changes from negative (discharging) to
positive (charging).

This causes userspace's notion of the status to lag until userspace
does a poll.

And when a power_supply_leds.c LED trigger is used to indicate charging
status with a LED, this LED will lag until the capacity percentage
changes, which may take many minutes (because the LED trigger only is
updated on power_supply_changed() calls).

Fix this by calling bq27xxx_battery_current_and_status() on gauges with
a signed current register and checking if the status has changed.

Fixes: 297a533b3e ("bq27x00: Cache battery registers")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-05-30 14:03:21 +01:00
..
bq27xxx_battery.h power: supply: bq27xxx: Ensure power_supply_changed() is called on current sign changes 2023-05-30 14:03:21 +01:00
bq2415x_charger.h power: fix duplicated words in bq2415x_charger.h 2020-07-27 00:10:14 +02:00
bq24190_charger.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
bq24735-charger.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
bq25890_charger.h power: supply: bq25890: Add support for registering the Vbus boost converter as a regulator 2022-02-01 14:55:12 +01:00
charger-manager.h power: supply: charger-manager: Update extcon functions 2020-08-28 19:27:45 +02:00
generic-adc-battery.h power: supply: generic-adc-battery: Use GPIO descriptors 2020-11-30 02:42:42 +01:00
gpio-charger.h power: supply: gpio-charger: Convert to GPIO descriptors 2020-08-27 16:47:14 +02:00
jz4740-battery.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 151 2019-05-30 11:26:28 -07:00
max17042_battery.h power: supply: max17042_battery: fix typo in MAX17042_IAvg_empty 2021-10-02 17:49:11 +02:00
sbs-battery.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
smartreflex.h soc: ti: Remove pm_runtime_irq_safe() usage for smartreflex 2021-08-10 15:51:22 -07:00
twl4030_madc_battery.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 151 2019-05-30 11:26:28 -07:00