[PATCH 0/5] Add driver for Qualcomm QGauge (qcom_qg) fuel gauge

[Val Packett <val@packett.cool>]

Hi o/

This series adds a driver for the "qgauge" battery fuel gauge
present in Qualcomm PMICs like PMI632, PM6150, PM7250B, PM2250.
The PMI632 is used in SDM632, SM6115/SM4250, SM6125 based phones.

This series was tested on sm6115-motorola-{cebu,guamp}, whose basic
dts has been submitted as [1].

There have been two attempts at making this driver, the first one
"WIP! power: supply: Add rude driver for QGauge" as found in
various development forks [2] was rather infamous for wild capacity%
swings due to load variation :D

The second one was submitted to msm8953-mainline at [3] by
Marc Lainez, and it behaved much better thanks to the use of
power_supply_batinfo_ocv2cap.

This is a continuation of that work, carrying his From/S-o-b on
modified patches with explicit permission. I have added the
SDAM read via NVMEM API, fixed the batt_info leak and did some
general cleanup.

With the SMB5 work also going on right now, we'll finally have
full battery support on these awkward pre-battmgr generations!

[1]: https://lore.kernel.org/all/20261109221453.658316-1-val@packett.cool/
[2]: https://github.com/sm7150-mainline/linux/commit/76879bf7a71f4f8f66b9bcd7175069ca7bbf4274
[3]: https://github.com/msm8953-mainline/linux/pull/242

Thanks,
~val

---

Marc Lainez (2):
  dt-bindings: power: supply: add Qualcomm QGauge fuel gauge
  power: supply: add Qualcomm QGauge (qcom_qg) fuel gauge driver

Val Packett (3):
  iio: adc: qcom-spmi-adc5: Add ADC5_BAT_THERM_100K_PU
  arm64: dts: qcom: pmi632: Add missing bat_therm ADC channel
  arm64: dts: qcom: pmi632: Add battery fuel gauge node

 .../bindings/power/supply/qcom,qg.yaml        | 105 +++
 MAINTAINERS                                   |   7 +
 arch/arm64/boot/dts/qcom/pmi632.dtsi          |  41 +
 drivers/iio/adc/qcom-spmi-adc5.c              |   2 +
 drivers/power/supply/Kconfig                  |  13 +
 drivers/power/supply/Makefile                 |   1 +
 drivers/power/supply/qcom_qg.c                | 807 ++++++++++++++++++
 7 files changed, 976 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/qcom,qg.yaml
 create mode 100644 drivers/power/supply/qcom_qg.c

-- 
2.56.0