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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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# Copyright 2024 Analog Devices Inc.

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# Copyright 2024 BayLibre, SAS.

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/iio/adc/adi,ad4030.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Analog Devices AD4030 and AD4630 ADC families

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maintainers:

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  - Michael Hennerich <michael.hennerich@analog.com>

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  - Nuno Sa <nuno.sa@analog.com>

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description: |

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  Analog Devices AD4030 single channel and AD4630/AD4632 dual channel precision

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  SAR ADC families

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  * https://www.analog.com/media/en/technical-documentation/data-sheets/ad4030-24-4032-24.pdf

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  * https://www.analog.com/media/en/technical-documentation/data-sheets/ad4630-24_ad4632-24.pdf

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  * https://www.analog.com/media/en/technical-documentation/data-sheets/ad4630-16-4632-16.pdf

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properties:

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  compatible:

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    enum:

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      - adi,ad4030-24

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      - adi,ad4032-24

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      - adi,ad4630-16

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      - adi,ad4630-24

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      - adi,ad4632-16

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      - adi,ad4632-24

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  reg:

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    maxItems: 1

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  spi-max-frequency:

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    maximum: 102040816

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  spi-rx-bus-width:

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    enum: [1, 2, 4]

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  vdd-5v-supply: true

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  vdd-1v8-supply: true

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  vio-supply: true

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  ref-supply:

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    description:

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      Optional External unbuffered reference. Used when refin-supply is not

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      connected.

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  refin-supply:

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    description:

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      Internal buffered Reference. Used when ref-supply is not connected.

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  cnv-gpios:

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    description:

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      The Convert Input (CNV). It initiates the sampling conversions.

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    maxItems: 1

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  reset-gpios:

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    description:

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      The Reset Input (/RST). Used for asynchronous device reset.

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    maxItems: 1

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  interrupts:

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    description:

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      The BUSY pin is used to signal that the conversions results are available

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      to be transferred when in SPI Clocking Mode. This nodes should be

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      connected to an interrupt that is triggered when the BUSY line goes low.

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    maxItems: 1

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  interrupt-names:

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    const: busy

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required:

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  - compatible

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  - reg

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  - vdd-5v-supply

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  - vdd-1v8-supply

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  - vio-supply

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  - cnv-gpios

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oneOf:

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  - required:

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      - ref-supply

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  - required:

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      - refin-supply

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unevaluatedProperties: false

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examples:

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  - |

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    #include <dt-bindings/gpio/gpio.h>

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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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            compatible = "adi,ad4030-24";

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            reg = <0>;

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            spi-max-frequency = <80000000>;

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            vdd-5v-supply = <&supply_5V>;

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            vdd-1v8-supply = <&supply_1_8V>;

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            vio-supply = <&supply_1_8V>;

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            ref-supply = <&supply_5V>;

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            cnv-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;

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            reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;

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        };

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    };

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