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SubjectRe: [PATCH 1/3] dt-bings: net: fsl,fec: update compatible item
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On 19/08/2022 06:13, Peng Fan wrote:
>>>
>> Sorry, I did not explain clearly last time, I just mentioned that imx8ulp fec
>> was totally reused from imx6ul and was a little different from imx6q.
>> So what should I do next? Should I fix the binding doc ?
>
> Just my understanding, saying i.MX6Q supports feature A,
> i.MX6UL support feature A + B, Then i.MX6UL is compatible with i.MX6Q.

Or if i.MX8ULP can bind with any previous compatible and still work
(with limited subset of features).

>
> If upper is true from hardware level, then i.MX8ULP FEC node
> should contain 8ulp, 6ul, 6q.
>
> But the list may expand too long if more and more devices are supported
> and hardware backward compatible

True. I guess three items is the limit and anything newer should restart
the sequence.

Best regards,
Krzysztof

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