[PATCH 0/3] R-Car DU: Clip planes to screen boundaries

[Laurent Pinchart]

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(-)

-- 
Regards,

Laurent Pinchart