power: supply: max17042: add platform driver variant

Browse source

Maxim PMICs may include fuel gauge with additional features, which is
out of single Linux power supply driver scope.

For example, in max77705 PMIC fuelgauge has additional registers, like
IIN_REG, VSYS_REG, ISYS_REG. Those needed to measure PMIC input current,
system voltage and current respectively. Those measurements cannot be
bound to any of fuelgauge properties.

The solution here add and option to use max17042 driver as a MFD sub
device, thus allowing any additional functionality be implemented as
another sub device. This will help to reduce code duplication in MFD
fuel gauge drivers.

Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Link: https://lore.kernel.org/r/20250107-b4-max17042-v6-2-3d0104ad5bc7@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

...

This commit is contained in:

Dzmitry Sankouski 2025-01-07 12:31:31 +03:00 • committed by Sebastian Reichel

parent bed41f08e2

commit 0cd4f1f77a

1 changed files with 141 additions and 50 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

191

drivers/power/supply/max17042_battery.c

View file