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[0/8] power: supply: Add driver for Qualcomm SMBCHG

Message ID 20220808073459.396278-1-y.oudjana@protonmail.com
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Series power: supply: Add driver for Qualcomm SMBCHG | expand

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Yassine Oudjana Aug. 8, 2022, 7:34 a.m. UTC 
From: Yassine Oudjana <y.oudjana@protonmail.com>

This series adds a driver for the switch-mode battery charger found on PMICs
such as PMI8994, and referred to in the vendor kernel[1] as smbcharger or
SMBCHG. More details on this block can be found in the last patch message.

This driver currently supports the charger blocks of PMI8994 and PMI8996.
PMI8950 was also to be supported, but it was dropped due to some last minute
issues, to be brought back at a later time once ready.

The OTG regulator remains unused on devices where the charger is enabled in
this series due to lack of a consumer. Applying a patch[2] adding vbus-supply
to DWC3 allows it to enable the OTG regulator making USB host without
external power possible.

[1] https://github.com/android-linux-stable/msm-3.18/blob/kernel.lnx.3.18.r34-rel/drivers/power/qpnp-smbcharger.c
[2] https://lore.kernel.org/linux-usb/20200805061744.20404-1-mike.looijmans@topic.nl/

Yassine Oudjana (8):
  dt-bindings: power: supply: Add DT schema for Qualcomm SMBCHG
  arm64: dts: qcom: pmi8994: Add SMBCHG
  arm64: dts: qcom: pmi8996: Add SMBCHG
  arm64: dts: qcom: msm8996-xiaomi-*: Add battery data
  arm64: dts: qcom: msm8996-xiaomi-*: Enable SMBCHG
  soc: qcom: Add PMIC secure register write helpers
  util_macros.h: Add macro to find closest smaller value in array
  power: supply: Add driver for Qualcomm SMBCHG

 .../bindings/power/supply/qcom,smbchg.yaml    |  205 ++
 MAINTAINERS                                   |   16 +
 .../boot/dts/qcom/msm8996-xiaomi-common.dtsi  |   15 +
 .../boot/dts/qcom/msm8996-xiaomi-gemini.dts   |    5 +
 .../boot/dts/qcom/msm8996-xiaomi-natrium.dts  |    5 +
 .../boot/dts/qcom/msm8996-xiaomi-scorpio.dts  |    5 +
 arch/arm64/boot/dts/qcom/pmi8994.dtsi         |   72 +
 arch/arm64/boot/dts/qcom/pmi8996.dtsi         |    4 +
 drivers/power/supply/Kconfig                  |   11 +
 drivers/power/supply/Makefile                 |    1 +
 drivers/power/supply/qcom-smbchg.c            | 1664 +++++++++++++++++
 drivers/power/supply/qcom-smbchg.h            |  428 +++++
 drivers/soc/qcom/Kconfig                      |    4 +
 drivers/soc/qcom/Makefile                     |    1 +
 drivers/soc/qcom/pmic-sec-write.c             |   82 +
 include/linux/util_macros.h                   |   22 +
 include/soc/qcom/pmic-sec-write.h             |    9 +
 17 files changed, 2549 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power/supply/qcom,smbchg.yaml
 create mode 100644 drivers/power/supply/qcom-smbchg.c
 create mode 100644 drivers/power/supply/qcom-smbchg.h
 create mode 100644 drivers/soc/qcom/pmic-sec-write.c
 create mode 100644 include/soc/qcom/pmic-sec-write.h