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

description: Nuvoton, NPCX-Tachometer node

compatible: "nuvoton,npcx-tach"

include: [tach.yaml, pinctrl-device.yaml]

properties:
  reg:
    required: true
  clocks:
    required: true
  pinctrl-0:
    required: true
  pinctrl-names:
    required: true
  sample-clk:
    type: int
    description: |
      sampling clock frequency of tachometer. Please notice that it must be
      fixed to 32768 if bus in clocks property is NPCX_CLOCK_BUS_LFCLK.
  port:
    type: int
    description: selected port of tachometer (port-A is 0 and port-B is 1)
  pulses-per-round:
    type: int
    description: number of pulses (holes) per round of tachometer's input (encoder)