On 30.07.2014 18:25, Daniel Vetter wrote:
As usual in both a crtc index and a struct drm_crtc * version.
The function assumes that no one drivers their display below 10Hz, and it will complain if the vblank wait takes longer than that.
v2: Also check dev->max_vblank_counter since some drivers register a fake get_vblank_counter function.
v3: Use drm_vblank_count instead of calling the low-level ->get_vblank_counter callback. That way we'll get the sw-cooked counter for platforms without proper vblank support and so can ditch the max_vblank_counter check again.
v4: Review from Michel Dänzer:
- Restore lost notes about v3:
- Spelling in kerneldoc.
- Inline wait_event condition.
- s/vblank_wait/wait_one_vblank/
Cc: Michel Dänzer michel@daenzer.net Cc: Ville Syrjälä ville.syrjala@linux.intel.com Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch
Reviewed-by: Michel Dänzer michel.daenzer@amd.com