# Copyright (c) 2021 Nuvoton Technology Corporation.
# SPDX-License-Identifier: Apache-2.0

description: Nuvoton NCT38XX series I2C-based GPIO expander port

compatible: "nuvoton,nct38xx-gpio-port"

include: [gpio-controller.yaml, base.yaml]

properties:
    reg:
      required: true

    pin_mask:
      type: int
      required: true
      description: |
        Not every GPIOs are usable for different NCT38XX series. This property
        indicates the usable GPIO mask.

        NCT3808: <0xdc>
        others: <0xff>

    pinmux_mask:
      type: int
      required: false
      description: |
        NCT38XX series port 0 has Pin Multiplexing functionality. However, not
        every GPIOs have pinmux controller functionality. This property
        indicates the usable GPIO pinmux mask. For port 1, this property is
        ignored.

        NCT3807 port 0: <0xf7>
        others: <0xff>

    "#gpio-cells":
      const: 2

gpio-cells:
  - pin
  - flags