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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/iio/adc/adi,ad7625.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/adc/adi,ad7625.yaml#

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

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title: Analog Devices Fast PulSAR Analog to Digital Converters

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maintainers:

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

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  - Nuno Sá <nuno.sa@analog.com>

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description: |

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  A family of single channel differential analog to digital converters.

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  * https://www.analog.com/en/products/ad7625.html

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  * https://www.analog.com/en/products/ad7626.html

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  * https://www.analog.com/en/products/ad7960.html

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  * https://www.analog.com/en/products/ad7961.html

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properties:

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  compatible:

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    enum:

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      - adi,ad7625

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      - adi,ad7626

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      - adi,ad7960

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      - adi,ad7961

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  vdd1-supply: true

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  vdd2-supply: true

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  vio-supply: true

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  ref-supply:

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    description:

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      Voltage regulator for the external reference voltage (REF).

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  refin-supply:

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    description:

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      Voltage regulator for the reference buffer input (REFIN).

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  clocks:

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    description:

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      The clock connected to the CLK pins, gated by the clk_gate PWM.

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    maxItems: 1

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  pwms:

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    items:

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      - description: PWM connected to the CNV input on the ADC.

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      - description: PWM that gates the clock connected to the ADC's CLK input.

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  pwm-names:

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    items:

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      - const: cnv

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      - const: clk_gate

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  io-backends:

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    description:

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      The AXI ADC IP block connected to the D+/- and DCO+/- lines of the

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      ADC. An example backend can be found at

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      http://analogdevicesinc.github.io/hdl/projects/pulsar_lvds/index.html.

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    maxItems: 1

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  adi,no-dco:

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    $ref: /schemas/types.yaml#/definitions/flag

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    description:

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      Indicates the wiring of the DCO+/- lines. If true, then they are

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      grounded and the device is in self-clocked mode. If this is not

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      present, then the device is in echoed clock mode.

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  adi,en0-always-on:

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    $ref: /schemas/types.yaml#/definitions/flag

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    description:

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      Indicates if EN0 is hard-wired to the high state. If neither this

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      nor en0-gpios are present, then EN0 is hard-wired low.

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  adi,en1-always-on:

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    $ref: /schemas/types.yaml#/definitions/flag

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    description:

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      Indicates if EN1 is hard-wired to the high state. If neither this

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      nor en1-gpios are present, then EN1 is hard-wired low.

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  adi,en2-always-on:

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    $ref: /schemas/types.yaml#/definitions/flag

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    description:

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      Indicates if EN2 is hard-wired to the high state. If neither this

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      nor en2-gpios are present, then EN2 is hard-wired low.

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  adi,en3-always-on:

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    $ref: /schemas/types.yaml#/definitions/flag

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    description:

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      Indicates if EN3 is hard-wired to the high state. If neither this

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      nor en3-gpios are present, then EN3 is hard-wired low.

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  en0-gpios:

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    description:

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      Configurable EN0 pin.

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  en1-gpios:

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    description:

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      Configurable EN1 pin.

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  en2-gpios:

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    description:

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      Configurable EN2 pin.

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  en3-gpios:

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    description:

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      Configurable EN3 pin.

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required:

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  - compatible

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  - vdd1-supply

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  - vdd2-supply

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  - vio-supply

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  - clocks

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  - pwms

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  - pwm-names

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  - io-backends

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allOf:

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  - if:

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      required:

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        - ref-supply

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    then:

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      properties:

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        refin-supply: false

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  - if:

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      required:

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        - refin-supply

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    then:

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      properties:

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        ref-supply: false

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - adi,ad7625

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              - adi,ad7626

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    then:

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      properties:

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        en2-gpios: false

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        en3-gpios: false

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        adi,en2-always-on: false

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        adi,en3-always-on: false

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - adi,ad7960

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              - adi,ad7961

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    then:

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      # ad796x parts must have one of the two supplies

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      oneOf:

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        - required: [ref-supply]

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        - required: [refin-supply]

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additionalProperties: false

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examples:

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  - |

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

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    adc {

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        compatible = "adi,ad7625";

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        vdd1-supply = <&supply_5V>;

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        vdd2-supply = <&supply_2_5V>;

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        vio-supply = <&supply_2_5V>;

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        io-backends = <&axi_adc>;

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        clocks = <&ref_clk>;

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        pwms = <&axi_pwm_gen 0 0>, <&axi_pwm_gen 1 0>;

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        pwm-names = "cnv", "clk_gate";

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        en0-gpios = <&gpio0 86 GPIO_ACTIVE_HIGH>;

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        en1-gpios = <&gpio0 87 GPIO_ACTIVE_HIGH>;

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    };

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