dts/bindings/tcpc/nuvoton,numaker-tcpc.yaml

# Copyright (c) 2024 Nuvoton Technology Corporation
# SPDX-License-Identifier: Apache-2.0

description: Nuvoton NuMaker USB Type-C port controller

compatible: "nuvoton,numaker-tcpc"

include: [base.yaml, reset-device.yaml, pinctrl-device.yaml]

properties:
  reg:
    required: true

  interrupts:
    required: true

  resets:
    required: true

  clocks:
    required: true

  vconn-overcurrent-event-polarity:
    type: string
    description: |
      Polarity of VCONN overcurrent event
    enum:
      - "low-active"
      - "high-active"

  vconn-discharge-polarity:
    type: string
    description: |
      Polarity of VCONN discharge
    enum:
      - "low-active"
      - "high-active"

  vconn-enable-polarity:
    type: string
    description: |
      Polarity of VCONN enable
    enum:
      - "low-active"
      - "high-active"

  vbus-overcurrent-event-polarity:
    type: string
    description: |
      Polarity of VBUS overcurrent event
    enum:
      - "low-active"
      - "high-active"

  vbus-forceoff-event-polarity:
    type: string
    description: |
      Polarity of VBUS force-off event
    enum:
      - "low-active"
      - "high-active"

  frs-tx-polarity:
    type: string
    description: |
      Polarity of fast role swap tx
    enum:
      - "low-active"
      - "high-active"

  vbus-discharge-enable-polarity:
    type: string
    description: |
      Polarity of VBUS discharge enable
    enum:
      - "low-active"
      - "high-active"

  vbus-sink-enable-polarity:
    type: string
    description: |
      Polarity of VBUS sink enable
    enum:
      - "low-active"
      - "high-active"

  vbus-source-enable-polarity:
    type: string
    description: |
      Polarity of VBUS source enable
    enum:
      - "low-active"
      - "high-active"

  vbus-divide:
    type: string
    required: true
    description: |
      VBUS measurement divider:
      "divide-20": External VBUS voltage divider circuit should be 1/20
                   for EPR application. The divided voltage compares with
                   200mV to set or clean VBUS Present bit.
      "divide-10": External VBUS voltage divider circuit should be 1/10
                   for SPR application. The divided voltage compares with
                   400mV to set or clean VBUS Present bit.
    enum:
      - "divide-20"
      - "divide-10"

  dead-battery:
    type: boolean
    description: |
      Determine if USB-C Dead Battery pull-down resistor should be
      applied to the CC lines.

  pinctrl-0:
    required: true

  pinctrl-names:
    required: true

  gpios:
    type: phandle-array
    required: true

  gpio-names:
    type: string-array
    required: true
    description: |
      Valid names of GPIO:
      "vbus-detect": GPIO for VBUS detect (must)
      "vbus-discharge": GPIO for VBUS discharge (option)
      "vconn-discharge": GPIO for VCONN discharge (option)

  io-channels:
    type: phandle-array
    description: |
      EADC channels for measuring VBUS/VCONN voltage

  io-channel-names:
    type: string-array
    description: |
      Valid names of EADC channels:
      "chn-vbus": EADC channel for measuring VBUS voltage (option)
      "chn-vconn": EADC channel for measuring VCONN voltage (option)

  adc-measure-timer-trigger-rate:
    type: int
    description: |
      Rate of timer-triggered EADC measurement (Hz).
      This is ignored when none of above is specified.
      The default is chosen by following BSP sample,
      and is to update UTCPD in a proper rate.
    default: 100