# Copyright (c) 2018, Linaro Limited
# SPDX-License-Identifier: Apache-2.0

description: PWM LEDs parent node

compatible: "pwm-leds"

child-binding:
  description: PWM LED child node
  properties:
    pwms:
      required: true
      type: phandle-array
      description: |
        Reference to a PWM instance.

        The period field is used by the set_brightness function of the LED API.
        Its value should at least be greater that 100 nanoseconds (for a full
        brigtness granularity) and lesser than 50 milliseconds (average visual
        persistence time of the human eye). Typical values for the PWM period
        are 10 or 20 milliseconds.

    label:
      type: string
      description: |
        Human readable string describing the LED. It can be used by an
        application to identify this LED or to retrieve its number/index
        (i.e. child node number) on the parent device.