Samsung S2MPG10 regulator and S2MPG11 PMIC drivers

This series extends the existing S2MPG10 PMIC driver to add support for
the regulators, and adds new S2MPG11 core and regulator drivers.

--- dependency note ---
This series must be applied in-order, due to the regulator drivers
depending on headers & definitions added by the bindings and core
drivers.

Due to patch context, there are dependencies on previous Samsung MFD
patches, hence this series is against current for-mfd-next.

While these patches compile, regulator probe will only be successful
with my deferrable regulators patches from
https://lore.kernel.org/r/20251227-regulators-defer-v1-0-...
(already in linux-next).

I think patches up to and including mfd changes could go via the MFD
tree, and regulator patches using an immutable branch via the regulator
tree on top.
--- end ---

The patches are kept together in one series, due to S2MPG11 and its
regulators being very similar to S2MPG10.

The Samsung S2MPG11 PMIC is a Power Management IC for mobile
applications with buck converters, various LDOs, power meters, and
additional GPIO interfaces. It typically complements an S2MPG10 PMIC in
a main/sub configuration as the sub-PMIC and both are used on the
Google Pixel 6 and 6 Pro (oriole / raven).

A DT update for Oriole / Raven to enable these is required which I will
send out separately.

Cheers,
Andre'

Signed-off-by: André Draszik <andre.draszik@linaro.org>
---
Changes in v7:
- rebase against for-mfd-next
- add 'domain_suffix' to s2mpg11_irq_chip_pmic (patch 9)
- Link to v6: https://lore.kernel.org/r/20260105-s2mpg1x-regulators-v6-...

Changes in v6:
- merge patch 21 into 15 (Bartosz)
- merge 'con-id' handling into patch 15
- collect tags
- Link to v5: https://lore.kernel.org/r/20251227-s2mpg1x-regulators-v5-...

Changes in v5:
- rebase against mfd/sec alarm IRQ rework
  https://lore.kernel.org/all/20251217-s5m-alarm-v2-0-b7bff...
- switch to async probe for mfd
- Mark: one MFD cell per PMIC, not per PMIC rail - drop or update
        related patches
  - making the series runtime depend on
    https://lore.kernel.org/r/20251227-regulators-defer-v1-0-...
- new patch:
  - mfd: sec: s2mpg10: reorder regulators for better probe performance
- collect tags
- Link to v4: https://lore.kernel.org/r/20251110-s2mpg1x-regulators-v4-...

Changes in v4:
- Krzysztof:
  - s2mpg10-regulator.yaml: move additionalProperties to after allOf
  - s2mpg10-regulator.yaml: use $defs, not definitions
  - split samsung,s2mpg10-pmic.yaml and samsung,s2mpg11-pmic.yaml
  - add full example for samsung,s2mpg10-pmic.yaml and 11
  - acpm binding: commit message update
  - acpm binding: pmic -> pmic-1, pmic2 -> pmic-2
- ensure binding file names match bindings
- fix typos in s2mpg11-regulator.yaml description text
- collect tags
- Link to v3: https://lore.kernel.org/r/20251103-s2mpg1x-regulators-v3-...

Changes in v3:
- Krzysztof:
  - split s2mpg10 core binding into separate file
  - drop PCTRLSEL values that can be described using standard
    properties, and update remaining macro names (self)
  - drop maxItems:1 where not needed (Krzysztof)
  - samsung,ext-control-gpios -> enable-gpios
- fix LDO20M_EN pin name -> VLDO20M_EN
- move all binding patternProperties to top-level
- one (driver) instance per actual rail, not per rail type (LDO or
  buck)
- new macro REGULATOR_LINEAR_VRANGE() (patch 10)
- address some (pre-existing) checkpatch warnings
- various updates to regulator driver (patch 16 & 19).See footer there
- more descriptive commit messages
- Link to v2: https://lore.kernel.org/r/20250606-s2mpg1x-regulators-v2-...

Changes in v2:
- s2mpg11 also exposes additional GPIOs, update all relevant commit
  messages (nevertheless, GPIOs are out of scope in this series)
- fix some commit message typos: s2mp1 -> s2mpg1
- patch2: drop | (literal style mark) from samsung,ext-control-gpios
- patch5: add | to vinb*-supply description for better formatting
- patch13: update ::of_parse_cb assignment
- patch15: drop duplicated ::of_parse_cb assignment
- Link to v1: https://lore.kernel.org/r/20250604-s2mpg1x-regulators-v1-...

---
André Draszik (20):
      dt-bindings: firmware: google,gs101-acpm-ipc: convert regulators to lowercase
      regulator: dt-bindings: add s2mpg10-pmic regulators
      regulator: dt-bindings: add s2mpg11-pmic regulators
      dt-bindings: mfd: samsung,s2mps11: Split s2mpg10-pmic into separate file
      dt-bindings: mfd: samsung,s2mpg10-pmic: Link to its regulators
      dt-bindings: mfd: Add samsung,s2mpg11-pmic
      dt-bindings: firmware: google,gs101-acpm-ipc: add S2MPG11 secondary PMIC
      mfd: sec: s2mpg10: reorder regulators for better probe performance
      mfd: sec: Add support for S2MPG11 PMIC via ACPM
      regulator: add REGULATOR_LINEAR_VRANGE macro
      regulator: s2mps11: drop two needless variable initialisations
      regulator: s2mps11: use dev_err_probe() where appropriate
      regulator: s2mps11: place constants on right side of comparison tests
      regulator: s2mps11: update node parsing (allow -supply properties)
      regulator: s2mps11: refactor handling of external rail control
      regulator: s2mps11: add S2MPG10 regulator
      regulator: s2mps11: refactor S2MPG10  ::set_voltage_time() for S2MPG11 reuse
      regulator: s2mps11: refactor S2MPG10 regulator macros for S2MPG11 reuse
      regulator: s2mps11: add S2MPG11 regulator
      regulator: s2mps11: more descriptive gpio consumer name

 .../bindings/firmware/google,gs101-acpm-ipc.yaml   |   54 +-
 .../bindings/mfd/samsung,s2mpg10-pmic.yaml         |  120 ++
 .../bindings/mfd/samsung,s2mpg11-pmic.yaml         |   88 ++
 .../devicetree/bindings/mfd/samsung,s2mps11.yaml   |   29 +-
 .../regulator/samsung,s2mpg10-regulator.yaml       |  158 +++
 .../regulator/samsung,s2mpg11-regulator.yaml       |  136 +++
 MAINTAINERS                                        |    1 +
 drivers/mfd/sec-acpm.c                             |  171 ++-
 drivers/mfd/sec-common.c                           |   17 +-
 drivers/mfd/sec-irq.c                              |   86 +-
 drivers/regulator/s2mps11.c                        | 1186 ++++++++++++++++++--
 .../regulator/samsung,s2mpg10-regulator.h          |   53 +
 include/linux/mfd/samsung/core.h                   |    1 +
 include/linux/mfd/samsung/irq.h                    |  105 ++
 include/linux/mfd/samsung/s2mpg10.h                |   44 +-
 include/linux/mfd/samsung/s2mpg11.h                |  434 +++++++
 include/linux/regulator/driver.h                   |    5 +
 17 files changed, 2527 insertions(+), 161 deletions(-)
---
base-commit: 76246f598ee3e8ba8796360f24cc8ea491350937
change-id: 20250603-s2mpg1x-regulators-7a41c8399abf

Best regards,
-- 
André Draszik <andre.draszik@linaro.org>