Re: [PATCH 2/9] dt-bindings: arm: mediatek: Add MT8186 Tentacruel / Tentacool Chromebooks

[Krzysztof Kozlowski]

On 18/10/2023 17:07, Conor Dooley wrote:
>>> Then it seems like what you need is something like
>>> oneOf:
>>>   - items:
>>>       - const: google,tentacruel-sku262144
>>>       - const: google,tentacruel
>>>       - const: mediatek,mt8186
>>>   - items:
>>>       - enum:
>>>           - google,tentacruel-sku262145
>>>           - google,tentacruel-sku262146
>>>           - google,tentacruel-sku262147
>>>       - const: google,tentacruel-sku262144
>>>       - const: google,tentacruel
>>>       - const: mediatek,mt8186
>>>
>>> What you have at the moment just seems like a hack because you want to
>>> stuff all of these compatible strings into a single dts.
>>
>> It is. And it works OK downstream. The reason we want to stuff them in
>> one dts is because the firmware will not generate the fallback to
>> sku262144 as the scheme above suggests.
> 
> I'm not going to ack the hack that you have here, sorry. Maybe Rob or
> Krzysztof will. The list your firmware generates above doesn't even
> match the contents of this patch, with the extra "rev-4" compatibles.

No Acks from me either... Chromebooks board compatibles are a long
standing confusion for me and every time I forget why this is so
counter-intuitively. My comments for changing this were rather receiving
feedback "but our firmware likes it that way".
OTOH, board compatibles just have to be unique, so we could accept some
weird, counter-intuitive combinations... but it does not mean I should
be happy with them.

Best regards,
Krzysztof