[PATCH v2 0/7] drm/mediatek: Refactor plane init/check and support rotation

[Sean Paul]

From: Sean Paul <seanpaul at chromium.org>

Hello,
This is a follow-on to [1], which supports the original Y-flip. I've
added X-flip and 180 degree rotate. Additionally, the rotation property
is only exposed for ovl planes, not rdma planes since rdma doesn't
support it. In order to differentiate between the two types, I had to
do some plumbing in order to surface the supported rotations of a
component as well as allowing a component to implement plane checks.

I've tested this on a 4.19 kernel on mt8183. The set was then forward
ported to mainline and build tested. The forward port was relatively
collision free, but there were a few.

Sean

[1]- https://lists.freedesktop.org/archives/dri-devel/2019-November/242312.html


Sean Paul (7):
  drm/mediatek: Refactor plane init
  drm/mediatek: Add helper to get component for a plane
  drm/mediatek: Add plumbing for layer_check hook
  drm/mediatek: Plumb supported rotation values from components to plane
    init
  drm/mediatek: Support reflect-y plane rotation
  drm/mediatek: Support reflect-x plane rotation
  drm/mediatek: Support 180 degree rotation

 drivers/gpu/drm/mediatek/mtk_disp_ovl.c     |  50 +++++++
 drivers/gpu/drm/mediatek/mtk_drm_crtc.c     | 145 ++++++++++++++------
 drivers/gpu/drm/mediatek/mtk_drm_crtc.h     |   2 +
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  22 +++
 drivers/gpu/drm/mediatek/mtk_drm_plane.c    |  18 ++-
 drivers/gpu/drm/mediatek/mtk_drm_plane.h    |   4 +-
 6 files changed, 199 insertions(+), 42 deletions(-)

-- 
Sean Paul, Software Engineer, Google / Chromium OS