29 lines
915 B
YAML
29 lines
915 B
YAML
# Copyright (c) 2018, Linaro Limited
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# SPDX-License-Identifier: Apache-2.0
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description: PWM LEDs parent node
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compatible: "pwm-leds"
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child-binding:
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description: PWM LED child node
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properties:
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pwms:
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required: true
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type: phandle-array
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description: |
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Reference to a PWM instance.
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The period field is used by the set_brightness function of the LED API.
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Its value should at least be greater that 100 nanoseconds (for a full
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brigtness granularity) and lesser than 50 milliseconds (average visual
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persistence time of the human eye). Typical values for the PWM period
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are 10 or 20 milliseconds.
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label:
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type: string
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description: |
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Human readable string describing the LED. It can be used by an
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application to identify this LED or to retrieve its number/index
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(i.e. child node number) on the parent device.
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