linux-imx

power: supply: bq25890_charger: Read back the current battery voltage

The BQ2589x family has the capability of reading the current battery voltage.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>