Re: [PATCH v3 8/8] dt-bindings: Add max12xx SPI ADC series as trivial devices

[Rob Herring]

On Mon, Oct 07, 2019 at 03:26:57PM +0200, Miquel Raynal wrote:
> Update the compatible list with three Maxim ADCs compatibles.
> 
> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> ---
>  .../bindings/iio/adc/max1027-adc.txt          | 28 +++++++++++++++++++
>  .../devicetree/bindings/trivial-devices.yaml  |  6 ++++
>  2 files changed, 34 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/adc/max1027-adc.txt

Devices are supposed to be documented in one place or the other. So 
either make max1027-adc.txt a schema or drop it.

I'm fine either way. Obviously, trivial-devices.yaml is trivial to add 
to, but it does leave some ambiguities. Like is an interrupt required, 
optional or non-existent? What about power supplies? Or what are allowed 
values for spi-max-frequency.

Rob