Commit 8de148c0 authored by Esteban Blanc's avatar Esteban Blanc Committed by Jonathan Cameron
Browse files

dt-bindings: iio: adc: add ADI ad4030, ad4630 and ad4632 



This adds a binding specification for the Analog Devices Inc. AD4030,
AD4630 and AD4632 families of ADCs.

- ad4030-24 is a 1 channel SAR ADC with 24 bits of precision and a
  sampling rate of 2M samples per second
- ad4032-24 is a 1 channel SAR ADC with 24 bits of precision and a
  sampling rate of 500K samples per second
- ad4630-16 is a 2 channels SAR ADC with 16 bits of precision and a
  sampling rate of 2M samples per second
- ad4630-24 is a 2 channels SAR ADC with 24 bits of precision and a
  sampling rate of 2M samples per second
- ad4632-16 is a 2 channels SAR ADC with 16 bits of precision and a
  sampling rate of 500K samples per second
- ad4632-24 is a 2 channels SAR ADC with 24 bits of precision and a
  sampling rate of 500K samples per second

Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Signed-off-by: default avatarEsteban Blanc <eblanc@baylibre.com>
Link: https://patch.msgid.link/20250214-eblanc-ad4630_v1-v4-1-135dd66cab6a@baylibre.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 6250803f

Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

# Copyright 2024 Analog Devices Inc.

# Copyright 2024 BayLibre, SAS.

%YAML 1.2

---

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

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



title: Analog Devices AD4030 and AD4630 ADC families



maintainers:

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

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



description: |

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

  SAR ADC families



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

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

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



properties:

  compatible:

    enum:

      - adi,ad4030-24

      - adi,ad4032-24

      - adi,ad4630-16

      - adi,ad4630-24

      - adi,ad4632-16

      - adi,ad4632-24



  reg:

    maxItems: 1



  spi-max-frequency:

    maximum: 102040816



  spi-rx-bus-width:

    enum: [1, 2, 4]



  vdd-5v-supply: true

  vdd-1v8-supply: true

  vio-supply: true



  ref-supply:

    description:

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

      connected.



  refin-supply:

    description:

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



  cnv-gpios:

    description:

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

    maxItems: 1



  reset-gpios:

    description:

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

    maxItems: 1



  interrupts:

    description:

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

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

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

    maxItems: 1



  interrupt-names:

    const: busy



required:

  - compatible

  - reg

  - vdd-5v-supply

  - vdd-1v8-supply

  - vio-supply

  - cnv-gpios



oneOf:

  - required:

      - ref-supply

  - required:

      - refin-supply



unevaluatedProperties: false



examples:

  - |

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



    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        adc@0 {

            compatible = "adi,ad4030-24";

            reg = <0>;

            spi-max-frequency = <80000000>;

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

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

            vio-supply = <&supply_1_8V>;

            ref-supply = <&supply_5V>;

            cnv-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;

            reset-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;

        };

    };

MAINTAINERS

+9 −0
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@@ -1306,6 +1306,15 @@ F: Documentation/devicetree/bindings/iio/adc/adi,ad4000.yaml 
F:	Documentation/iio/ad4000.rst

F:	drivers/iio/adc/ad4000.c









AD4030 ADC DRIVER (AD4030-24/AD4630-16/AD4630-24/AD4632-16/AD4632-24)









M:	Michael Hennerich <michael.hennerich@analog.com>









M:	Nuno Sá <nuno.sa@analog.com>









R:	Esteban Blanc <eblanc@baylibre.com>









L:	linux-iio@vger.kernel.org









S:	Supported









W:	https://ez.analog.com/linux-software-drivers









F:	Documentation/devicetree/bindings/iio/adc/adi,ad4030.yaml

















ANALOG DEVICES INC AD4130 DRIVER









M:	Cosmin Tanislav <cosmin.tanislav@analog.com>









L:	linux-iio@vger.kernel.org