[PATCH 0/4] DC: Fix page flip timeouts on DCE 6 (v2)

[Timur Kristóf]

Compared to the previous version of this series, v2 fixes
the rebase conflicts on amd-staging-drm-next and includes
an additional patch to address page flip timeouts when the
displays are blanked.

Currently when using DC on DCE 6, it produces pageflip timeouts:

1. When displays are blanked
This is caused by (mistakenly) turning off the display engine
clock on DCE 6.0 and 6.4 which is also the DP clock.

2. After suspend/resume
The root cause is that DC assumes that the VUPDATE interrupt
is always present, when in fact it isn't supported by DCE 6,
which also doesn't support VRR.

Finally, there is also a patch to disable fast boot mode
on DCE 6. The rationale is that this already didn't work
on DCE 8, and even if it did I have no means to test it.

Timur Kristóf (4):
  drm/amd/display: Keep PLL0 running on DCE 6.0 and 6.4 (v2)
  drm/amd/display: Disable fastboot on DCE 6 too
  drm/amd/display: Disable VRR on DCE 6
  drm/amd/display: Don't use non-registered VUPDATE on DCE 6 (v2)

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 26 ++++++++++++-------
 .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c    | 16 +++++++-----
 drivers/gpu/drm/amd/display/dc/dc_helper.c    |  5 ++++
 drivers/gpu/drm/amd/display/dc/dm_services.h  |  2 ++
 .../amd/display/dc/hwss/dce110/dce110_hwseq.c |  6 ++---
 .../dc/resource/dce60/dce60_resource.c        | 11 +++++++-
 6 files changed, 46 insertions(+), 20 deletions(-)

-- 
2.50.1