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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/adc/adc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Generic IIO bindings for ADC channels
maintainers:
- Jonathan Cameron <jic23@kernel.org>
description:
A few properties are defined in a common way ADC channels.
properties:
$nodename:
pattern: "^channel(@[0-9a-f]+)?$"
description:
A channel index should match reg.
reg:
maxItems: 1
label:
$ref: /schemas/types.yaml#/definitions/string
description: Unique name to identify which channel this is.
bipolar:
$ref: /schemas/types.yaml#/definitions/flag
description: If provided, the channel is to be used in bipolar mode.
diff-channels:
$ref: /schemas/types.yaml#/definitions/uint32-array
maxItems: 2
minItems: 2
description:
Many ADCs have dual Muxes to allow different input pins to be routed
to both the positive and negative inputs of a differential ADC.
The first value specifies the positive input pin, the second
specifies the negative input pin.
settling-time-us:
description:
Time between enabling the channel and first stable readings.
oversampling-ratio:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Oversampling is used as replacement of or addition to the low-pass filter.
In some cases, the desired filtering characteristics are a function the
device design and can interact with other characteristics such as
settling time.
additionalProperties: true
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