[PATCH 0/9][SRU][Jammy] Support USB4 DP alt mode for AMD Yellow Carp graphics card

You-Sheng Yang vicamo.yang at canonical.com
Fri Dec 17 16:54:55 UTC 2021


On Fri, Dec 17, 2021 at 10:15 PM Andrea Righi
<andrea.righi at canonical.com> wrote:
> I'm trying to better understand the problem here. Is it really worth it
> to apply all these commits (some of them backported) + a SAUCE patch to
> fix this issue?
>
> It would make this part of the kernel (drm/amd/display) harder to
> maintain when we apply stable updates... so the question is, why is this
> not applied to stable already?

Hi,

That SAUCE patch is to save another ton of backports for some amdgpu
internal refactorings. It is not required for kernel 5.16+, so it
won't appear in 5.16+. While it's pretty limited to one code snippet,
It should not affect stable updates too much.

For other differences caused by backporting, I did not meet something
tremendously different in semantics or so. They're mostly line
insertions and deletions.

While this fix aims for a new GPU code named Yellow Carp for the
upcoming AMD Rembrandt APU, it was not a fix of some previous
products, and is only proposed to oem-5.14 and Jammy for the immediate
need in oem projects and their future generic kernel migrations.

> Thanks,
> -Andrea

-- 
Regards,
You-Sheng Yang



More information about the kernel-team mailing list