Hello,
This patch series fixes support for planes that cross the screen boundaries. The KMS API supports such a configuration, but the DU and VSP hardware doesn't. This leads to different kind of dispay artifacts or hangs.
The series starts with a bit of refactoring to share existing code and make it easier to share new code (1/3). Patch 2/3 then reject planes that are fully off-screen as they don't work properly and we have currently no use case for them. Finally, patch 3/3 clips planes to screen boundaries to fix the main issue.
The patches are based on top of Dave's latest master branch.
Laurent Pinchart (3): drm: rcar-du: Share plane atomic check code between Gen2 and Gen3 drm: rcar-du: Reject planes located fully off-screen drm: rcar-du: Clip planes to screen boundaries
drivers/gpu/drm/rcar-du/rcar_du_plane.c | 109 ++++++++++++++++++++++++-------- drivers/gpu/drm/rcar-du/rcar_du_plane.h | 8 +++ drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 43 ++++--------- 3 files changed, 105 insertions(+), 55 deletions(-)