linux-stable.git/drivers/power, branch v4.4.293

power: supply: rt5033_battery: Change voltage values to µV

2021-11-26T10:58:40+00:00

[ Upstream commit bf895295e9a73411889816f1a0c1f4f1a2d9c678 ]

Currently the rt5033_battery driver provides voltage values in mV. It
should be µV as stated in Documentation/power/power_supply_class.rst.

Fixes: b847dd96e659 ("power: rt5033_battery: Add RT5033 Fuel gauge device driver")
Cc: Beomho Seo 
Cc: Chanwoo Choi 
Signed-off-by: Jakob Hauser 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: supply: max17042_battery: use VFSOC for capacity when no rsns

2021-11-26T10:58:36+00:00

commit 223a3b82834f036a62aa831f67cbf1f1d644c6e2 upstream.

On Galaxy S3 (i9300/i9305), which has the max17047 fuel gauge and no
current sense resistor (rsns), the RepSOC register does not provide an
accurate state of charge value. The reported value is wrong, and does
not change over time. VFSOC however, which uses the voltage fuel gauge
to determine the state of charge, always shows an accurate value.

For devices without current sense, VFSOC is already used for the
soc-alert (0x0003 is written to MiscCFG register), so with this change
the source of the alert and the PROP_CAPACITY value match.

Fixes: 359ab9f5b154 ("power_supply: Add MAX17042 Fuel Gauge Driver")
Cc: 
Reviewed-by: Krzysztof Kozlowski 
Suggested-by: Wolfgang Wiedmeyer 
Signed-off-by: Henrik Grimler 
Reviewed-by: Hans de Goede 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Greg Kroah-Hartman

power: supply: max17042_battery: Prevent int underflow in set_soc_threshold

2021-11-26T10:58:36+00:00

commit e660dbb68c6b3f7b9eb8b9775846a44f9798b719 upstream.

max17042_set_soc_threshold gets called with offset set to 1, which means
that minimum threshold value would underflow once SOC got down to 0,
causing invalid alerts from the gauge.

Fixes: e5f3872d2044 ("max17042: Add support for signalling change in SOC")
Cc: 
Signed-off-by: Sebastian Krzyszkowiak 
Reviewed-by: Krzysztof Kozlowski 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Greg Kroah-Hartman

power: supply: max17042: handle fails of reading status register

2021-09-22T09:41:23+00:00

commit 54784ffa5b267f57161eb8fbb811499f22a0a0bf upstream.

Reading status register can fail in the interrupt handler.  In such
case, the regmap_read() will not store anything useful under passed
'val' variable and random stack value will be used to determine type of
interrupt.

Handle the regmap_read() failure to avoid handling interrupt type and
triggering changed power supply event based on random stack value.

Fixes: 39e7213edc4f ("max17042_battery: Support regmap to access device's registers")
Cc: 
Signed-off-by: Krzysztof Kozlowski 
Reviewed-by: Hans de Goede 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Greg Kroah-Hartman

power: supply: max17042_battery: fix typo in MAx17042_TOFF

2021-09-22T09:41:19+00:00

[ Upstream commit ed0d0a0506025f06061325cedae1bbebd081620a ]

Signed-off-by: Sebastian Krzyszkowiak 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: supply: ab8500: add missing MODULE_DEVICE_TABLE

2021-07-20T14:22:43+00:00

[ Upstream commit dfe52db13ab8d24857a9840ec7ca75eef800c26c ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Reported-by: Hulk Robot 
Signed-off-by: Zou Wei 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: supply: charger-manager: add missing MODULE_DEVICE_TABLE

2021-07-20T14:22:43+00:00

[ Upstream commit 073b5d5b1f9cc94a3eea25279fbafee3f4f5f097 ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Reported-by: Hulk Robot 
Signed-off-by: Zou Wei 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE

2021-07-20T14:22:42+00:00

[ Upstream commit ed3443fb4df4e140a22f65144546c8a8e1e27f4e ]

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Reported-by: Hulk Robot 
Signed-off-by: Bixuan Cui 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: supply: ab8500: Avoid NULL pointers

2021-07-20T14:22:42+00:00

[ Upstream commit 5bcb5087c9dd3dca1ff0ebd8002c5313c9332b56 ]

Sometimes the code will crash because we haven't enabled
AC or USB charging and thus not created the corresponding
psy device. Fix it by checking that it is there before
notifying.

Signed-off-by: Linus Walleij 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin

power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()

2021-05-22T08:38:18+00:00

[ Upstream commit 68ae256945d2abe9036a7b68af4cc65aff79d5b7 ]

This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.

Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.

Reported-by: Hulk Robot 
Signed-off-by: Yang Yingliang 
Reviewed-by: Krzysztof Kozlowski 
Signed-off-by: Sebastian Reichel 
Signed-off-by: Sasha Levin