Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings:iio:adc: convert adc.txt to yaml
Each driver that uses this will need to use a $ref
We can't always enable it like most of the generic bindings due to
channel@X matching far more widely than IIO.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20201031182423.742798-2-jic23@kernel.org
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Documentation/devicetree/bindings/iio/adc/adc.txt
-29
Documentation/devicetree/bindings/iio/adc/adc.txt
···
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Common ADCs properties
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Optional properties for child nodes:
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- bipolar : Boolean, if set the channel is used in bipolar mode.
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- diff-channels : Differential channels muxed for this ADC. The first value
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specifies the positive input pin, the second value the negative
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input pin.
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- reg: The channel number.
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- label: Unique name to identify which channel this is.
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Example:
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adc@0 {
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compatible = "some,adc";
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...
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channel@0 {
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reg = <0>;
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label = "channel_0_name";
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bipolar;
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diff-channels = <0 1>;
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...
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};
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channel@1 {
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reg = <1>;
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label = "channel_1_name";
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diff-channels = <2 3>;
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...
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};
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};
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Documentation/devicetree/bindings/iio/adc/adc.yaml
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Documentation/devicetree/bindings/iio/adc/adc.yaml
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/adc/adc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Generic IIO bindings for ADC channels
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maintainers:
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- Jonathan Cameron <jic23@kernel.org>
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description:
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A few properties are defined in a common way ADC channels.
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properties:
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$nodename:
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pattern: "^channel(@[0-9a-f]+)?$"
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description:
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A channel index should match reg.
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reg:
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maxItems: 1
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label:
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$ref: /schemas/types.yaml#/definitions/string
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description: Unique name to identify which channel this is.
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bipolar:
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$ref: /schemas/types.yaml#/definitions/flag
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description: If provided, the channel is to be used in bipolar mode.
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diff-channels:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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maxItems: 2
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minItems: 2
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description:
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Many ADCs have dual Muxes to allow different input pins to be routed
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to both the positive and negative inputs of a differential ADC.
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The first value specifies the positive input pin, the second
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specifies the negative input pin.
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additionalProperties: true