Neil Armstrong [off-list ref] writes:

On 10/09/2020 12:13, Jerome Brunet wrote:

[...]

quoted

Why is NOCACHE ? Is there something poking behind CCF back ? if yes, why
is this required ?

I'm surprised you ask this since the situation hasn't changed since I pushed the
video clock for GXBB, then G12A.

Even if the situation hasn't changed, providing context is very helpful
for new reviewers or reviewers who might need a reminder of that
situation.  I for one had already forgotten the video clock context so I
had a similiar question as Jerome when I saw the NOCACHE and UNUSED
flags.

As you know, new usage of those flags is always highly scrutinized, so
providing the right context and explanation, even if it's repeating
stuff you've stated elsewhere, can help preempt any questions.  

The switch to CCF for the VPU is still planned, but until now I was unable to allocate enough
time for this huge rework.

Since I'm the single DRM driver contributor and lacking any other reviewers, I must deal
with new features & bugfixing before moving to CCF.

Not at all a blocker for this patch, but just curious do you have a TODO
list someplace for this driver in case others might have some time to
help you with the migration?

The clock situation is far from perfect, and I'd also like it to be solved at some point.

I'll add the same explanation I gave for GXBB in https://lkml.kernel.org/r/1541516257-16157-5-git-send-email-narmstrong@baylibre.com

Yes, that's perfect.

Thanks,

Kevin

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