Commit 1bf0347a authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

dt-bindings: iio: adc: ti,ads7950 binding conversion 



Conversion from txt to yaml.  The binding documents that
as not all boards will make use of the ADC channels via a consumer
driver.  It does no harm however, so we will leave it as required.

Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarDavid Lechner <david@lechnology.com>
Cc: David Lechner <david@lechnology.com>
Link: https://lore.kernel.org/r/20200830161154.3201-3-jic23@kernel.org
parent 9c53adba

Documentation/devicetree/bindings/iio/adc/ti,ads7950.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/adc/ti,ads7950.yaml#

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



title: Texas Instruments ADS7950 and similar ADCs



maintainers:

  - David Lechner <david@lechnology.com>



description: |

  Family of 4-16 channel, 8-12 bit ADCs with SPI interface.



properties:

  compatible:

    enum:

      - ti,ads7950

      - ti,ads7951

      - ti,ads7952

      - ti,ads7953

      - ti,ads7954

      - ti,ads7955

      - ti,ads7956

      - ti,ads7957

      - ti,ads7958

      - ti,ads7959

      - ti,ads7960

      - ti,ads7961



  reg:

    maxItems: 1



  spi-max-frequency:

    maximum: 20000000



  vref-supply:

    description: Supplies the 2.5V or 5V reference voltage



  "#io-channel-cells":

    const: 1



required:

  - compatible

  - reg

  - vref-supply

  - "#io-channel-cells"



additionalProperties: false



examples:

  - |

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        adc@0 {

            compatible = "ti,ads7957";

            reg = <0>;

            vref-supply = <&refin_supply>;

            spi-max-frequency = <10000000>;

            #io-channel-cells = <1>;

        };

    };

...

Documentation/devicetree/bindings/iio/adc/ti-ads7950.txt

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* Texas Instruments ADS7950 family of A/DC chips



Required properties:

 - compatible: Must be one of "ti,ads7950", "ti,ads7951", "ti,ads7952",

   "ti,ads7953", "ti,ads7954", "ti,ads7955", "ti,ads7956", "ti,ads7957",

   "ti,ads7958", "ti,ads7959", "ti,ads7960", or "ti,ads7961"

 - reg: SPI chip select number for the device

 - #io-channel-cells: Must be 1 as per ../iio-bindings.txt

 - vref-supply: phandle to a regulator node that supplies the 2.5V or 5V

   reference voltage



Recommended properties:

 - spi-max-frequency: Definition as per

		Documentation/devicetree/bindings/spi/spi-bus.txt



Example:

adc@0 {

	compatible = "ti,ads7957";

	reg = <0>;

	#io-channel-cells = <1>;

	vref-supply = <&refin_supply>;

	spi-max-frequency = <10000000>;

};