AuxXxilium/linux_dsm_epyc7002
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2b5a4b4bf2
linux_dsm_epyc7002/drivers/power/supply
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Hans de Goede 2b5a4b4bf2 power: supply: axp288_fuel_gauge: Rework get_status() 
Relying on the (dis)charge current reporting for reporting FULL back to
userspace does not work really well and often leads to the reported status
getting stuck at e.g. 98/99% (the fuelgauge is not perfect) for hours.

What happens is that when the battery is full the axp288 keeps charging it
with a very low current. Until it is really really full and once really
really full, some inaccuracies in the adc lead to it then sometimes
reporting a small discharging rate, even though an external pwr source is
used. So we end up with a status of "charging" for hours after the battery
is actually already full and sometimes this then flip-flops to discharging.

This commit fixes this by first checking if a valid Vbus is present and if
it is present using the fuel-gauge's reported percentage to check for a
full battery.

This commit also changes how get_status() determines if the battery is
charging or discharging when not reporting it as full. We still use the
current direction for this, but instead of reading 4 extra registers for
this (2 16 bit regs), simplify things by using the current-direction bit
in the power-status register, which already gets read anyways.

This also reduces the amount of i2c reads to 1 when on battery and 2
when a valid Vbus is present.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2018-01-09 17:41:39 +01:00
..
88pm860x_battery.c
88pm860x_charger.c
ab8500_bmdata.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ab8500_btemp.c power: supply: ab8500_btemp: Compress return logic into one line. 2017-01-17 00:28:38 +01:00
ab8500_charger.c power: supply: ab8500_charger: Bail out in case of error in 'ab8500_charger_init_hw_registers()' 2017-12-01 16:21:18 +01:00
ab8500_fg.c power: supply: improve function-level documentation 2016-10-19 05:06:22 +02:00
abx500_chargalg.c
act8945a_charger.c power: supply: act8945a_charger: fix of_irq_get() error check 2017-07-24 14:09:00 +02:00
apm_power.c
axp20x_ac_power.c power: supply: account for const type of of_device_id.data 2018-01-08 18:40:46 +01:00
axp20x_battery.c power: supply: axp20x_battery: add DT support for battery max constant charge current 2017-06-08 17:57:53 +02:00
axp20x_usb_power.c power: supply: axp20x_usb_power: Drop unnecessary static 2017-05-15 15:28:14 +02:00
axp288_charger.c power: supply: axp288_charger: Properly stop work on probe-error / remove 2018-01-08 18:38:57 +01:00
axp288_fuel_gauge.c power: supply: axp288_fuel_gauge: Rework get_status() 2018-01-09 17:41:39 +01:00
bq27xxx_battery_hdq.c power: supply: bq27xxx: move platform driver code into bq27xxx_battery_hdq.c 2017-07-25 15:31:21 +02:00
bq27xxx_battery_i2c.c Add support for bq27521 battery monitor 2017-12-08 18:02:15 +01:00
bq27xxx_battery.c Add support for bq27521 battery monitor 2017-12-08 18:02:15 +01:00
bq2415x_charger.c power: supply: bq2415x: check for NULL acpi_id to avoid null pointer dereference 2017-01-21 03:35:07 +01:00
bq24190_charger.c bq24190: Simplify code in property_is_writeable 2018-01-08 18:40:06 +01:00
bq24257_charger.c power: bq24257: Fix use of uninitialized pointer bq->charger 2016-09-19 20:56:22 +02:00
bq24735-charger.c power: supply: bq24735: remove incorrect le16_to_cpu calls 2017-06-15 16:47:35 +02:00
bq25890_charger.c power: supply: bq25890: Use gpiod_get() 2017-04-14 01:41:34 +02:00
charger-manager.c power: supply: charger-manager: Fix typo in condition 2017-12-01 16:14:06 +01:00
collie_battery.c
cpcap-battery.c power: supply: cpcap-battery: Fix platform_get_irq_byname's error checking 2017-12-01 16:22:10 +01:00
cpcap-charger.c power: supply: cpcap-charger: fix incorrect return value check 2017-11-13 11:56:12 +01:00
da9030_battery.c
da9052-battery.c
da9150-charger.c
da9150-fg.c
ds2760_battery.c w1: Add subsystem kernel public interface 2017-06-09 11:54:54 +02:00
ds2780_battery.c power: supply: add const to bin_attribute structures 2017-08-09 17:42:56 +02:00
ds2781_battery.c power: supply: add const to bin_attribute structures 2017-08-09 17:42:56 +02:00
ds2782_battery.c
generic-adc-battery.c power: supply: generic-adc-battery: remove redundant variable pdata 2017-11-06 13:49:14 +01:00
goldfish_battery.c
gpio-charger.c power: supply: gpio_charger: switch to using GPIO descriptors 2017-01-04 22:04:50 +01:00
ipaq_micro_battery.c power: ipaq_micro_battery: fix alias 2016-11-23 23:44:40 +01:00
isp1704_charger.c power: supply: isp1704: Fix unchecked return value of devm_kzalloc 2017-05-01 11:52:25 +02:00
jz4740-battery.c
Kconfig Merge branch 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2017-11-15 10:14:11 -08:00
lego_ev3_battery.c power: supply: New driver for LEGO MINDSTORMS EV3 battery 2017-04-14 01:41:35 +02:00
lp8727_charger.c
lp8788-charger.c power: supply: lp8788: Make several arrays static const * const 2017-08-12 13:58:14 -04:00
ltc2941-battery-gauge.c power: ltc2941-battery-gauge: Disable continuous monitoring on shutdown 2017-12-01 16:41:05 +01:00
ltc3651-charger.c power: supply: ltc3651-charger: fix some error codes in probe 2017-06-08 13:05:27 +02:00
Makefile Merge branch 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2017-11-14 17:52:21 -08:00
max1721x_battery.c power: supply: Add support for MAX1721x standalone fuel gauge 2017-07-24 14:09:34 +02:00
max8903_charger.c
max8925_power.c
max8997_charger.c power: supply: max8997: Improve a size determination in probe 2017-11-06 13:49:12 +01:00
max8998_charger.c
max14577_charger.c
max14656_charger_detector.c power: supply: max14656: Export I2C and OF device ID as module aliases 2017-01-29 23:15:17 +01:00
max17040_battery.c power: supply: max17040: Add OF device ID table 2017-04-14 01:41:33 +02:00
max17042_battery.c power: supply: max17042_battery: Fix compiler warning 2017-08-29 12:04:14 +02:00
max77693_charger.c
olpc_battery.c power: supply: make device_attribute const 2017-08-28 18:48:44 +02:00
pcf50633-charger.c power: supply: pcf50633-charger: remove redundant variable charging_start 2017-11-06 13:49:57 +01:00
pda_power.c power: supply: pda_power: move from timer to delayed_work 2017-05-01 12:41:58 +02:00
pm2301_charger.c
pm2301_charger.h
pmu_battery.c
power_supply_core.c power: supply: replace pr_* with dev_* 2017-11-06 13:59:41 +01:00
power_supply_leds.c
power_supply_sysfs.c power: supply: core: Add power_supply_prop_precharge 2017-06-08 16:29:28 +02:00
power_supply.h
qcom_smbb.c extcon: Split out extcon header file for consumer and provider device 2017-10-23 14:07:58 +09:00
rt5033_battery.c
rt9455_charger.c
rx51_battery.c power: supply: avoid unused twl4030-madc.h 2017-05-01 13:03:09 +02:00
s3c_adc_battery.c
sbs-battery.c power: supply: sbs-battery: remove unchecked return var 2017-10-29 00:45:59 +02:00
sbs-charger.c power: supply: sbs-charger: simplified bool function 2017-04-14 01:41:34 +02:00
sbs-manager.c power: supply: sbs-message: double left shift bug in sbsm_select() 2017-12-01 16:08:00 +01:00
smb347-charger.c
test_power.c
tosa_battery.c
tps65090-charger.c
tps65217_charger.c power: supply: tps65217: remove debug messages for function calls 2017-04-14 01:41:35 +02:00
twl4030_charger.c power: supply: replace pr_* with dev_* 2017-11-06 13:59:41 +01:00
twl4030_madc_battery.c power: supply: avoid unused twl4030-madc.h 2017-05-01 13:03:09 +02:00
wm97xx_battery.c power: supply: wm97xx_battery: remove redundant 2nd null check on pdata 2017-01-04 22:04:20 +01:00
wm831x_backup.c
wm831x_power.c power: wm831x_power: Support USB charger current limit management 2017-08-15 15:05:01 +03:00
wm8350_power.c wm8350_power: use permission-specific DEVICE_ATTR variants 2016-11-23 23:46:20 +01:00
z2_battery.c