Merge branch 'drm-radeon-next' of ../drm-radeon-next into drm-core-next

* 'drm-radeon-next' of ../drm-radeon-next: (333 commits)
  drm/radeon/kms: trivial code style fixes for audio
  drm/radeon: remove viewport transform from r6xx/r7xx blit emit
  drm/radeon: group r6xx/r7xx newly sequential blit state
  drm/radeon: reorder r6xx/r7xx blit state emit to make more regs sequential
  drm/radeon: r6xx/r7xx move vport clipping to a single packet
  drm/radeon: group r6xx/r7xx sequential blit state
  drm/radeon: remove duplicate state emit in r6xx/r7xx blit
  drm/radeon: add comments to r6xx/r7xx blit state
  drm/radeon/kms/r7xx: add workaround for hw issue with HDP flush
  drm/radeon/kms: remove rs4xx gart limit
  drm: radeon: fix sign bug
  drm/radeon/kms: check/restore sanity before doing anything else with GPU.
  drm/radeon: fall back to GTT if bo creation/validation in VRAM fails.
  drm/radeon/kms: add ioport register access
  drm/radeon/kms: enable HDMI audio on RS600/RS690/RS740
  drm/radeon/kms: track audio engine state, do not use not setup timer
  drm/radeon/kms/r6xx+: add query for tile config (v2)
  drm/radeon/kms: fix CS alignment checking for tiling (v2)
  drm/radeon/kms: add tiling support to the cs checker for r6xx/r7xx
  drm/radeon/kms: Add crtc tiling setup support for evergreen
  ...