This patch series adds supports for the battery fuel gauge device for
Samsung S2MU005 PMIC battery chargers. It reports various metrics,
including incoming voltage, current, battery capacity, etc.

Although this device is independent of the actual PMIC which it
accompanies in functionality, it is used in conjunction with the PMIC's
charger sub-device to provide complete battery status.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
---
Changes in v2:
- s/fuelgauge/fuel-gauge in dt-bindings (Conor Dooley)
- do not print error messages for -ENOMEM (Sebastian Reichel)
- remove redundant irq_get_trigger_type() (Sebastian Reichel)
- set regmap val_bits to 16 (Sebastian Reichel)
- switch to regmap_{read,write}()
- add current_avg and voltage_avg properties
- implement workaround for false positives due to hysteresis
- Link to v1: https://lore.kernel.org/r/20260126-s2mu005-fuelgauge-v1-0-68a146ed0819@disroot.org

---
Kaustabh Chakraborty (1):
      dt-bindings: power: supply: document Samsung S2MU005 battery fuel gauge

Yassine Oudjana (1):
      power: supply: add support for S2MU005 battery fuel gauge device

 .../power/supply/samsung,s2mu005-fuel-gauge.yaml   |  49 ++++
 drivers/power/supply/Kconfig                       |   9 +
 drivers/power/supply/Makefile                      |   1 +
 drivers/power/supply/s2mu005-battery.c             | 306 +++++++++++++++++++++
 4 files changed, 365 insertions(+)
---
base-commit: 9845cf73f7db6094c0d8419d6adb848028f4a921
change-id: 20260126-s2mu005-fuelgauge-25e9d95e30b6

Best regards,
-- 
Kaustabh Chakraborty <kauschluss@disroot.org>