HACK: add platform setup for dmaer so I can use it for RE.
drm/vc4: fix buffer overflow
drm/vc4: Improve support for load/store tile buffers

Signed-off-by: Eric Anholt <eric@anholt.net>
drm/vc4: drop dead variable

Signed-off-by: Eric Anholt <eric@anholt.net>
drm/vc4: Fix compiler warnings

Signed-off-by: Eric Anholt <eric@anholt.net>