Re: [PATCH v2] arm64: dts: mt8192: Add vcodec lat and core nodes

From: Krzysztof Kozlowski
Date: Wed Sep 28 2022 - 03:04:26 EST


On 27/09/2022 12:17, AngeloGioacchino Del Regno wrote:
>>>
>>
>> Sorry, my bad. I alsways run `make dtbs_check` to confirm dtb with
>> bindings. I just think we didn't limit node names in mtk-vodec
>> bindings. I will pay attention next time.
>>
>>
>> Since currently the vcodec lat and core nodes are absent from the mtk
>> dts, do you think the child node name should be changed to something
>> more general (ex: video-codec) in mediatek,vcodec-subdev-decoder
>> bindings?
>
> The video codec is mt8192-vcodec-dec, while the other nodes are describing
> the VPU instances (and/or vpu cores)... I'm not sure.
>
> Krzysztof, please, can you give your opinion on that?
>

What's the difference between them? I understand parent device is entire
block of consisting of multiple processing units? If so, video-codec
actually could fit in both places. But feel free to call it a bit
different (video-codec-core, video-codec-lat, processing-unit, even
something less generic). Sometimes it's tricky to find nice name, so I
wouldn't worry too much in that case. Just not "mt8192-vcodec" :)

Best regards,
Krzysztof