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dt-bindings: staging: iio: cdc: ad7746: add binding documentation for AD7746
Add device tree binding documentation for AD7746 cdc in YAML format.
Signed-off-by: Lucas Stankus <lucas.p.stankus@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/2c2f4d486a94e0740e112bfac0d9306bdb7ea69c.1619841953.git.lucas.p.stankus@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Lucas Stankus
and committed by
Jonathan Cameron
13f212e1
53ebee94
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Documentation/devicetree/bindings/iio/cdc/adi,ad7746.yaml
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Documentation/devicetree/bindings/iio/cdc/adi,ad7746.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iio/cdc/adi,ad7746.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: AD7746 24-Bit Capacitance-to-Digital Converter with Temperature Sensor
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maintainers:
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- Michael Hennerich <michael.hennerich@analog.com>
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description: |
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AD7746 24-Bit Capacitance-to-Digital Converter with Temperature Sensor
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Specifications about the part can be found at:
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https://www.analog.com/media/en/technical-documentation/data-sheets/ad7291.pdf
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properties:
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compatible:
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enum:
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- adi,ad7745
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- adi,ad7746
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- adi,ad7747
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reg:
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maxItems: 1
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adi,excitation-vdd-permille:
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description: |
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Set VDD per mille to be used as the excitation voltage.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [125, 250, 375, 500]
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adi,exca-output-en:
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description: Enables the EXCA pin as the excitation output.
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type: boolean
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adi,exca-output-invert:
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description: |
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Inverts the excitation output in the EXCA pin.
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Normally only one of the EXCX pins would be inverted, check the following
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application notes for more details
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https://www.analog.com/media/en/technical-documentation/application-notes/AN-1585.pdf
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type: boolean
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adi,excb-output-en:
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description: Enables the EXCB pin as the excitation output.
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type: boolean
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adi,excb-output-invert:
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description: Inverts the excitation output in the EXCB pin.
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type: boolean
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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ad7746: cdc@48 {
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compatible = "adi,ad7746";
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reg = <0x48>;
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adi,excitation-vdd-permille = <125>;
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adi,exca-output-en;
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adi,exca-output-invert;
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adi,excb-output-en;
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adi,excb-output-invert;
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};
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};
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...