[PATCH v3 2/2] drm/sun4i: Use CRTC size instead of PRIMARY plane size as mixer frame.

[Maxime Ripard]

Hi,

On Wed, Jan 01, 2020 at 10:47:50PM +0200, roman.stratiienko at globallogic.com wrote:
> From: Roman Stratiienko <roman.stratiienko at globallogic.com>
>
> According to DRM documentation the only difference between PRIMARY
> and OVERLAY plane is that each CRTC must have PRIMARY plane and
> OVERLAY are optional.
>
> Allow PRIMARY plane to have dimension different from full-screen.
>
> Fixes: 5bb5f5dafa1a ("drm/sun4i: Reorganize UI layer code in DE2")
> Signed-off-by: Roman Stratiienko <roman.stratiienko at globallogic.com>

So it applies to all the 4 patches you've sent, but this lacks some
context.

There's a few questions that should be answered here:
  - Which situation is it fixing?
  - What tool / userspace stack is it fixing?
  - What happens with your fix? Do you set the plane at coordinates
    0,0 (meaning you'll crop the top-lef corner), do you center it? If
    the plane is smaller than the CTRC size, what is set on the edges?

Thanks!
Maxime
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 228 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20200102/64ebffab/attachment.sig>