[GIT PULL] drm-vc4-next-2016-05-13

[Eric Anholt]

Here are a few late bugfixes for vc4.  I figure it's best to bring
them in through -next since 4.6 is about done.  I've based them late
in your -next branch to avoid needing conflict resolution.

The following changes since commit bafb86f5bc3173479002555dea7f31d943b12332:

  Merge tag 'v4.6-rc7' into drm-next (2016-05-09 13:49:56 +1000)

are available in the git repository at:

  https://github.com/anholt/linux tags/drm-vc4-next-2016-05-13

for you to fetch changes up to efea172891fc32928291a633c17a146338a73ba9:

  drm/vc4: Return -EBUSY if there's already a pending flip event. (2016-05-09 18:31:33 -0700)

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This pull request brings in a few fixes for vc4 pageflipping.

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Mario Kleiner (2):
      drm/vc4: Fix get_vblank_counter with proper no-op for Linux 4.4+
      drm/vc4: Fix drm_vblank_put/get imbalance in page flip path.

Robert Foss (1):
      drm/vc4: Return -EBUSY if there's already a pending flip event.

 drivers/gpu/drm/vc4/vc4_crtc.c |  4 ++++
 drivers/gpu/drm/vc4/vc4_drv.c  |  2 +-
 drivers/gpu/drm/vc4/vc4_kms.c  | 16 ++++++++++++----
 3 files changed, 17 insertions(+), 5 deletions(-)