Re: [PATCH v2 1/2] iio: adc: hx711: Add DT binding for avia,hx711

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On 12/14/2016 10:59 AM, Andreas Klinger wrote:
> Add DT bindings for avia,hx711
> Add vendor avia to vendor list
> 
> Signed-off-by: Andreas Klinger <ak@xxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/iio/adc/avia-hx711.txt      | 21 +++++++++++++++++++++
>  .../devicetree/bindings/vendor-prefixes.txt         |  1 +
>  2 files changed, 22 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
> new file mode 100644
> index 000000000000..6a4659fc7a4f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.txt
> @@ -0,0 +1,21 @@
> +* AVIA HX711 ADC chip for weight cells
> +  Bit-banging driver
> +
> +Required properties:
> + - compatible: Should be "avia,hx711"
> + - sck-gpios:	Definition of the GPIO for the clock
> + - dout-gpios:	Definition of the GPIO for data-out
> +		See Documentation/devicetree/bindings/gpio/gpio.txt
> +
> +Recommended properties:
> + - gain:	Gain select, can be 32, 64 or 128
> +		default is 128

If the gain is software programmable it should be exposed by the driver
allowing the application to change it rather than putting it in the devicetree.

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