This series introduces pinctrl support for the Realtek RTD1625 SoC.

Besides the new SoC support, this series improves the common Realtek pinctrl
driver and the generic pinctrl library by:

1. Introducing the generic 'input-voltage-microvolt' property to pincfg and
pinconf-generic.
2. Clarifying the 'realtek,duty-cycle' property semantics in Realtek-specific
bindings.
3. Adding support for slew rate, input voltage parameters.

I welcome feedback and suggestions.

Best regards,
Yu-Chun Lin
---
Changes in v3:
- Rebase onto the devel branch of the pinctrl tree.
- Revert realtek,pulse-width-adjust to realtek,duty-cycle.
- Fix binding example values from hexadecimal to decimal format.
- Change default value of realtek,high-vil-microvolt from 1 to 0.
- Sync driver with binding changes to handle PIN_CONFIG_SLEW_RATE as valid
numbers.
- Replace arch_initcall() with module_platform_driver().

v2: https://lore.kernel.org/lkml/20260306075244.1170399-1-eleanor.lin@realtek.com/

Yu-Chun Lin (7):
  dt-bindings: pincfg-node: Add input-voltage-microvolt property
  pinctrl: pinconf-generic: Add properties 'input-voltage-microvolt'
  dt-bindings: pinctrl: realtek: Improve 'realtek,duty-cycle'
    description
  dt-bindings: pinctrl: realtek: Add RTD1625 pinctrl binding
  pinctrl: realtek: add support for slew rate, input voltage and high
    VIL
  pinctrl: realtek: add rtd1625 pinctrl driver
  arm64: dts: realtek: Add pinctrl support for RTD1625

 .../bindings/pinctrl/pincfg-node.yaml         |    4 +
 .../pinctrl/realtek,rtd1315e-pinctrl.yaml     |    7 +-
 .../pinctrl/realtek,rtd1319d-pinctrl.yaml     |    7 +-
 .../pinctrl/realtek,rtd1619b-pinctrl.yaml     |    7 +-
 .../pinctrl/realtek,rtd1625-pinctrl.yaml      |  260 ++
 arch/arm64/boot/dts/realtek/kent.dtsi         |   20 +
 drivers/pinctrl/pinconf-generic.c             |    2 +
 drivers/pinctrl/realtek/Kconfig               |   14 +
 drivers/pinctrl/realtek/Makefile              |    1 +
 drivers/pinctrl/realtek/pinctrl-rtd.c         |   66 +-
 drivers/pinctrl/realtek/pinctrl-rtd.h         |   37 +
 drivers/pinctrl/realtek/pinctrl-rtd1625.c     | 3138 +++++++++++++++++
 include/linux/pinctrl/pinconf-generic.h       |    3 +
 13 files changed, 3559 insertions(+), 7 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/realtek,rtd1625-pinctrl.yaml
 create mode 100644 drivers/pinctrl/realtek/pinctrl-rtd1625.c

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2.34.1