[PATCH] p54spi: convert to devicetree

[Arnd Bergmann]

On Tue, Mar 14, 2023, at 20:57, Krzysztof Kozlowski wrote:
> On 14/03/2023 17:30, Arnd Bergmann wrote:
>
> Please split bindings to separate patch.
>
>>  MAINTAINERS                                   |  1 +
>>  arch/arm/boot/dts/omap2.dtsi                  |  4 ++
>>  arch/arm/boot/dts/omap2420-n8x0-common.dtsi   | 12 ++++
>
> DTS as well...

ok

>> +maintainers:
>> +  - Johannes Berg <johannes at sipsolutions.net>
>> +  - Christian Lamparter <chunkeey at web.de>
>> +
>> +description: |
>
> You can drop '|'.

ok

>> +properties:
>> +  compatible:
>> +    enum:
>> +      - st,stlc4550
>> +      - st,stlc4560
>> +      - isil,p54spi
>> +      - cnxt,3110x
>
> Order above entries by name.

ok

>> +
>> +  power-gpios:
>
> If this is GPIO driving some power pin, then it should be
> "powerdown-gpios" (like in /bindings/gpio/gpio-consumer-common.yaml)

As far as I can tell, it's the opposite: the gpio turns the power on
in 'high' state. I could make it GPIO_ACTIVE_LOW and call it powerdown,
if you think that's better, but I don't think that is how it was
meant.

>> +examples:
>> +  - |
>> +   gpio {
>
> Align example with above |, so four spaces. Or better indent entire
> example with four spaces.

Ok, that makes it much more readable.

>> +     gpio-controller;
>> +     #gpio-cells = <1>;
>> +     #interupt-cells = <1>;
>> +   };
>
> Drop "gpio" node. It's not needed for the example.

ok.

>> +   spi {
>> +      #address-cells = <1>;
>> +      #size-cells = <0>;
>> +
>> +      wifi at 0 {
>> +        reg = <0>;
>> +        compatible = "st,stlc4560";
>
> compatible before reg.

ok.

       Arnd