etnaviv: Fix padding for allocated resources for kmsro scanout
etna_resource_alloc
takes a layout and a modifier parameter.
It looks like the modifier is intended to be used if kmsro is used and it is a scanout resource,
and the layout is used otherwise.
These two parameters do not always match, etna_resource_create
for example always always passes
DRM_FORMAT_MOD_LINEAR
to etna_resource_alloc
regardless of the layout, such that it will be
linear in the kmsro scanout case, but a better suited layout otherwise.
The problem is that in the kmsro scanout case, etna_resource_alloc
may add padding based on
the layout rather than the modifier parameter. This can lead to padding being added when it
wouldn't have been necessary otherwise, and that can cause problems with mxsfb, which currently
can't deal with additional padding.
This MR just sets the layout based on the modifier in etna_resource_alloc
for the kmsro scanout case.
It may make sense to refactor etna_resource_alloc
at some point and drop its modifier parameter, though.
Signed-off-by: default avatarDaniel Abrecht public@danielabrecht.ch