Merge tag 'topic/nouveau-i915-dp-helpers-and-cleanup-2020-08-31-1' of git://anongit...

UAPI Changes:

None

Cross-subsystem Changes:

* Moves a bunch of miscellaneous DP code from the i915 driver into a set
  of shared DRM DP helpers

Core Changes:

* New DRM DP helpers (see above)

Driver Changes:

* Implements usage of the aforementioned DP helpers in the nouveau
  driver, along with some other various HPD related cleanup for nouveau

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/11e59ebdea7ee4f46803a21fe9b21443d2b9c401.camel@redhat.com

diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
Simple merge

diff --cc drivers/gpu/drm/drm_dp_helper.c
Simple merge

diff --cc drivers/gpu/drm/drm_dp_mst_topology.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/dispnv50/disp.c
Simple merge

diff --cc drivers/gpu/drm/sun4i/sun4i_tcon.c
Simple merge