Re: [PATCH 2/3] media: dt-bindings: nxp,imx8-isi: Allow single port for single pipeline models

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On 29/02/2024 19:14, Krzysztof Kozlowski wrote:
> On 23/02/2024 15:17, Laurent Pinchart wrote:
>> On Fri, Feb 23, 2024 at 04:16:31PM +0200, Laurent Pinchart wrote:
>>> Hi Alexander,
>>>
>>> Thank you for the patch.
>>>
>>> On Fri, Feb 23, 2024 at 03:04:44PM +0100, Alexander Stein wrote:
>>>> In case the hardware only supports just one pipeline, allow using a
>>>> single port node as well.
>>>
>>> This is frowned upon in DT bindings, as it makes them more complicated
>>> for little gain. The recommendation is to always use a ports node if a
>>> device can have multiple ports for at least one of its compatibles.
>>
>> And reading the cover letter, I see this causes warnings. I think we
>> need guidance from Rob on this.
> 
> Here was similar case:
> https://lore.kernel.org/all/20240227142440.GA3863852-robh@xxxxxxxxxx/
> and @Rob recommendation was to just use ports.
> 
> It's true it causes warnings... or I should say - it was causing
> warnings (one of my last warnings in Samsung DTS for W=1).
> 
> I wonder what's the base of this patchset?
> 
> https://lore.kernel.org/linux-samsung-soc/20231122-dtc-warnings-v2-1-bd4087325392@xxxxxxxxxx/

Uh, wait, this was not merged, so the warning still appears. Anyway the
preference is simpler schema, so just "ports".

Best regards,
Krzysztof





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