Re: [PATCH v7 1/2] dt-bindings: iio: adc: Add MAX1241 bindings

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On Fri,  3 Apr 2020 15:13:22 +0300
Alexandru Lazar <alazar@xxxxxxxxxxxxx> wrote:

> Add device-tree bindings documentation for the MAX1241 device driver.
> 
> Signed-off-by: Alexandru Lazar <alazar@xxxxxxxxxxxxx>
One trivial thing inline.   I'll fix that up and apply, but not
in a form that can't be rebased - so I can add DT review if Rob wants
to take another look.

Thanks,

Jonathan

> ---
>  .../bindings/iio/adc/maxim,max1241.yaml       | 64 +++++++++++++++++++
>  1 file changed, 64 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
> new file mode 100644
> index 000000000000..7da9e4153ac1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/maxim,max1241.yaml
> @@ -0,0 +1,64 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright 2020 Alexandru Lazar
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/adc/maxim,max1241.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Maxim MAX1241 12-bit, single-channel analog to digital converter
> +
> +maintainers:
> +  - Alexandru Lazar <alazar@xxxxxxxxxxxxx>
> +
> +description: |
> +  Bindings for the max1241 12-bit, single-channel ADC device. Datasheet
> +  can be found at:
> +    https://datasheets.maximintegrated.com/en/ds/MAX1240-MAX1241.pdf
> +
> +properties:
> +  compatible:
> +    enum:
> +      - maxim,max1241
> +
> +  reg:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description:
> +      Device tree identifier of the regulator that powers the ADC.
> +
> +  vref-supply:
> +    description:
> +      Device tree identifier of the regulator that provides the external
> +      reference voltage.

I believe this is always one anyway so not needed.

> +    maxItems: 1
> +
> +  shutdown-gpios:
> +    description:
> +      GPIO spec for the GPIO pin connected to the ADC's /SHDN pin. If
> +      specified, the /SHDN pin will be asserted between conversions,
> +      thus enabling power-down mode.
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - vdd-supply
> +  - vref-supply
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    spi {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +        adc@0 {
> +            compatible = "maxim,max1241";
> +            reg = <0>;
> +            vdd-supply = <&adc_vdd>;
> +            vref-supply = <&adc_vref>;
> +            spi-max-frequency = <1000000>;
> +            shutdown-gpios = <&gpio 26 1>;
> +        };
> +    };




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