[PATCH 0/5] drm/vc4: Fix negative X/Y positioning of planes

[Boris Brezillon]

Hello Eric,

This is an attempt at fixing support for negative X/Y positioning of
various FB formats. I kept you as the author since I started from your
initial work and fixed a few things + split the changes in several
commits. Let me know if that's a problem, and I change the author.

This series has been tested with a modified modetest (support for this
modifier has been added).

Note that I plan to test/debug support for negative X/Y positioning of
SANDXX planes.

Regards,

Boris

Eric Anholt (5):
  drm/vc4: Fix TILE_Y_OFFSET definitions
  drm/vc4: Define missing PICTH0_SINK_PIX field
  drm/vc4: Use drm_atomic_helper_check_plane_state() to simplify the
    logic
  drm/vc4: Move ->offsets[] adjustment out of
    setup_clipping_and_scaling()
  drm/vc4: Fix negative X/Y positioning of planes using T_TILES modifier

 drivers/gpu/drm/vc4/vc4_drv.h   |   9 --
 drivers/gpu/drm/vc4/vc4_plane.c | 272 ++++++++++++++++++++++++----------------
 drivers/gpu/drm/vc4/vc4_regs.h  |   8 +-
 3 files changed, 170 insertions(+), 119 deletions(-)

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2.14.1