[PATCH v4 0/4] regulator: add the Will Semiconductor WL2868C camera PMIC

[Qianhui Xu <xiaqinghuan@mail.ustc.edu.cn>]

The WL2868C is the camera PMIC on the Lenovo Legion Tab (TB322FC,
SM8750); its seven LDOs feed the rear camera, the front camera and the
VCM on i2c10.

v3 was reviewed by sashiko and Krzysztof; what changed, point by point:

 - i2c10 was enabled while its parents were not, so the bus could never
   populate and none of the regulators it hosts could have registered.
   The board DTS now enables qupv3_2 and gpi_dma2 alongside i2c10
   (sashiko, High).

 - The binding schema, the SoC dtsi and the board DTS were mixed in the
   board patch. The series is now one binding patch (including the
   arm/qcom.yaml registration), one driver patch, one sm8750.dtsi patch
   and one board DTS patch (sashiko, Low; checkpatch flagged the same
   thing).

 - The sm8750.dtsi patch now leaves both I2C buses of each CCI
   controller available instead of disabling bus 1, as sm8550.dtsi and
   sm8650.dtsi do, and carries the bus 1 pinctrl states on gpio115/116
   and gpio119/120 (sashiko, Low).

 - The CCI nodes moved after videocc@aaf0000 into unit-address order,
   and the new pinctrl states sit alphabetically inside &tlmm (sashiko,
   Low).

 - The commit message now says that the SoC has three CCI controllers
   of which two are described, instead of "the two CCI I2C
   controllers" (sashiko, Low).

 - The front galaxycore,gc08a8 node is dropped: it has no binding at
   all, unlike samsung,s5kjns and giantec,gt9764, whose bindings were
   posted separately and are still in review. LDO2 and LDO3 stay wired
   in the board file for when that series lands. The sensor nodes also
   lost their power-domains property: the TITAN_TOP GDSC belongs to the
   camera controller that owns the CCI bus, not to an I2C sensor, which
   is powered through its supplies and its reset GPIO (sashiko,
   Medium). The rear sensor gained its CSI-2 endpoint; the
   remote-endpoint side arrives with the camera subsystem series.

Everything above is host-side only. The i2c10 probe and the runtime
existence of the regulators are still unverified on hardware; the
on-board evidence reported earlier (i2c-10 present, camera_ldo1..5,7
registered, LDO6 without consumer) comes from our own downstream board
DTS, not from the files in this series.


Qianhui Xu (4):
  regulator: dt-bindings: willsemi,wl2868c: add the WL2868C camera PMIC
  regulator: willsemi,wl2868c: add the WL2868C camera PMIC driver
  arm64: dts: qcom: sm8750: describe two of the three CCI I2C
    controllers
  arm64: dts: qcom: sm8750-lenovo-elden: describe the WL2868C regulators

 .../devicetree/bindings/arm/qcom.yaml         |   1 +
 .../bindings/regulator/willsemi,wl2868c.yaml  |  79 ++++++++
 MAINTAINERS                                   |   7 +
 arch/arm64/boot/dts/qcom/Makefile             |   1 +
 .../boot/dts/qcom/sm8750-lenovo-elden.dts     | 175 ++++++++++++++++++
 arch/arm64/boot/dts/qcom/sm8750.dtsi          | 158 ++++++++++++++++
 drivers/regulator/Kconfig                     |  11 ++
 drivers/regulator/Makefile                    |   1 +
 drivers/regulator/wl2868c-regulator.c         | 155 ++++++++++++++++
 9 files changed, 588 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/willsemi,wl2868c.yaml
 create mode 100644 arch/arm64/boot/dts/qcom/sm8750-lenovo-elden.dts
 create mode 100644 drivers/regulator/wl2868c-regulator.c

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2.53.0