Re: [PATCH v2 3/4] media: dt-bindings: add bindings for Toshiba TC358746

[Krzysztof Kozlowski]

On 20/09/2022 19:32, Laurent Pinchart wrote:
>>>
>>> Explicit bus types in DT indeed makes it easier for drivers, so if a
>>> device can support multiple bus types (even if not implemented yet in
>>> the corresponding drivers), the property should be there.
>>
>> Okay, I will make it required.
>>
>>>> Why do you have hsync-active and vsync-active if both are always zero? Can
>>>> the hardware not support other configuration?
>>
>> Sure the device supports toggling the logic but it is not implemented.
>> So the bindings needs to enforce it to 0 right now. As soon as it is
>> implemented & tested, we can say that both is supported :)
> 
> Bindings are not supposed to be limited by the existing driver
> implementation, so you can already allow both polarities, and just
> reject the unsupported options in the driver at probe time. Future
> updates to the driver won't require a binding change.
> 

+1

Best regards,
Krzysztof