104 lines
2.2 KiB
YAML
104 lines
2.2 KiB
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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$id: http://devicetree.org/schemas/iio/adc/adi,ad7949.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices AD7949/AD7682/AD7689 analog to digital converters
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maintainers:
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- Charles-Antoine Couret <charles-antoine.couret@essensium.com>
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description: |
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Specifications on the converters can be found at:
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AD7949:
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https://www.analog.com/media/en/technical-documentation/data-sheets/AD7949.pdf
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AD7682/AD7698:
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https://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
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properties:
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compatible:
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enum:
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- adi,ad7682
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- adi,ad7689
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- adi,ad7949
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reg:
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maxItems: 1
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vrefin-supply:
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description:
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Buffered ADC reference voltage supply.
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vref-supply:
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description:
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Unbuffered ADC reference voltage supply.
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adi,internal-ref-microvolt:
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description: |
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Internal reference voltage selection in microvolts.
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If no internal reference is specified, the channel will default to the
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external reference defined by vrefin-supply (or vref-supply).
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vrefin-supply will take precedence over vref-supply if both are defined.
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If no supplies are defined, the reference selection will default to
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4096mV internal reference.
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enum: [2500000, 4096000]
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default: 4096000
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'#io-channel-cells':
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const: 1
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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required:
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- compatible
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- reg
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allOf:
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- $ref: /schemas/spi/spi-peripheral-props.yaml#
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unevaluatedProperties: false
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examples:
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- |
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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adc@0 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "adi,ad7949";
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reg = <0>;
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vref-supply = <&vdd_supply>;
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};
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adc@1 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "adi,ad7949";
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reg = <1>;
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vrefin-supply = <&vdd_supply>;
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};
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adc@2 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "adi,ad7949";
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reg = <2>;
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adi,internal-ref-microvolt = <4096000>;
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};
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};
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...
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