Re: [PATCH v2 00/13] mailbox/arm64/ qcom: rework compatibles for fallback

From: Krzysztof Kozlowski
Date: Thu Mar 16 2023 - 02:52:41 EST


On 14/03/2023 13:16, Dmitry Baryshkov wrote:
> On 14/03/2023 10:09, Krzysztof Kozlowski wrote:
>> Hi,
>>
>> Changes since v1
>> ================
>> 1. Rebase
>> 2. Make msm8994 fallback for several variants, not msm8953, because the latter
>> actually might take some clocks.
>
> Although the approach looks correct, I think that in some cases it tries
> to mark devices compatible judging from the current driver, not from the
> hardware itself.

Which is what compatibility is about...

>
> For the reference, on msm8994 the apcs is a clock controller for the l2
> clocks (which we do not support yet). If I'm not mistaken, on msm8976
> the apcs region contains a mux for the cluster1 clocks. On sdm630/660
> the apcs region also seems to be involved in CPU clocks scaling.

The question is this means they are incompatible?

>
> On the other hand, the sc7180/sm8150 part seems logical.
>


Best regards,
Krzysztof