Re: [PATCH 2/4] dt-bindings: media: Add bindings for raspberrypi,rp1-cfe

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On 19/03/2024 13:57, Naushir Patuck wrote:
>>>>
>>>> See writing bindings. Compatibles should be SoC specific. In some cases
>>>> generic fallbacks make sense, in some note. But don't just choose
>>>> "generic fallback" because you want. Provide rationale.
>>>
>>> If the compatible is SoC specific, I suppose "raspberrypi,rp1-cfe"
>>> would be the correct string.
>>
>> Sure, but then please think what if rp1 is on Rpi6, called exactly the
>> same (rp1), with some minor differences? Could it be?
> 
> Yes, this is definitely possible.  In such cases, I would expect the
> hardware to have a version register that would be queried by the
> driver to adjust for minor differences, and the compatible string
> remains the same.  Does that seem reasonable?

The "would expect" is concerning. The register(s) must be there already,
with proper value.

Best regards,
Krzysztof





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