Re: [PATCH 1/3] dt-bindings: display: mediatek: Correct disp_aal binding for MT8183

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On 07/04/2022 08:22, Rex-BC Chen wrote:
> On Wed, 2022-04-06 at 16:44 +0200, Krzysztof Kozlowski wrote:
>> On 06/04/2022 11:46, Rex-BC Chen wrote:
>>> The driver data of MT8183 and MT8173 are different.
>>> The value of has_gamma for MT8173 is true while the value of MT8183
>>> is
>>> false. Therefore, the compatible of disp_aal for MT8183 is not
>>> suitable
>>> for the compatible for MT8173.
>>
>> Just because one feature is not supported, it does not mean they are
>> incompatible, which you claim in the patch below. Are you sure they
>> are
>> really incompatible and MT8173 fallback cannot be used?
>>
>>
>> Best regards,
>> Krzysztof
> 
> Hello Krzysztof,
> 
> Thanks for your review.
> 
> The difference of disp_aal for each MediaTek SoCs is "has_gamma".
> And we only control this variable for different MediaTek SoCs.
> 
> The value of has_gamma for MT8173 is true.
> The value of has_gamma for MT8183 is false. (Moreover, the driver data
> is null for MT8183)
> 
> From this situation, I think it's not compatible between MT8173 and
> MT8183.

You repeated the commit msg without bringing any new information... but
let it be, I assume setting gamma on MTT8183 is incorrect or produces
wrong results.


Best regards,
Krzysztof



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