drm/i915: optimize vblank waits in set_base_atomic
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Sun, 2 Jun 2013 15:23:01 +0000 (17:23 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 3 Jun 2013 12:16:12 +0000 (14:16 +0200)
commitd7697eea3eec74c561d12887d892c53ac4380c00
treed061d515c8b7cbdee1c68ed365742f20ff048a58
parentb51b32cde1757cd0f3f75bc15d5e0e98c3007dff
drm/i915: optimize vblank waits in set_base_atomic

We only need to do them if the pipe is actually running and if the
framebuffers have changed. Removes two "wait for vblank timed out"
messages when doing a suspend/resume cycle on my i855gm.

v2: s/to_intel_ctrc(crtc)/intel_crtc/ spotted by Chris.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_display.c