Re: [PATCH v2] dt-bindings: display: mediatek: Compatible list cleanup

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On 02/03/2023 17:08, AngeloGioacchino Del Regno wrote:
> Il 02/03/23 15:12, Yassine Oudjana ha scritto:
>> From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
>>
>> Several DT bindings of MediaTek display blocks make unnecessary use of
>> "oneOf" and "items". Remove them and replace them with enums where
>> necessary.


>> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
>> index 7d7cc1ab526b..52f233fe1c0f 100644
>> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
>> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
>> @@ -20,9 +20,7 @@ description: |
>>   
>>   properties:
>>     compatible:
>> -    oneOf:
>> -      - items:
>> -          - const: mediatek,mt8173-disp-wdma
>> +    const: mediatek,mt8173-disp-wdma
>>   
> 
> This is present on all MediaTek SoCs - literally. The issue is that the driver
> currently does not support command mode panels for real, so this binding is...
> ...well, somehow in forgotten-land...
> 
> I would hope that command mode panels get implemented soon(er-than-later), but
> I'll leave the choice to you and Krzysztof - I'm only providing the information
> here. :-)

Yep, if you predict now that oneOf sooner or later will come back to
these, just keep it. Does not hurt much and later re-introducing it
makes patch much more difficult to read. Therefore I prefer to have
unused oneOf than later a patch which introduces new compatible and
re-indents old one (so unneeded diff changes).


Best regards,
Krzysztof




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