Commit 311089d3 authored Nov 26, 2009 by Shaohua Li Committed by Eric Anholt Nov 30, 2009

drm/i915: use msleep for intel_wait_for_vblank



20ms delay is quite big and the routine isn't called in atomic context.
better use msleep to let other tasks run. This can reduce cpu time used
by Xorg, so potentially boost boot.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>

parent 1991bdfa

drivers/gpu/drm/i915/intel_display.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -950,7 +950,7 @@ void
		intel_wait_for_vblank(struct drm_device *dev)
		{
		/* Wait for 20ms, i.e. one cycle at 50hz. */
		mdelay(20);
		msleep(20);
		}

		/* Parameters have changed, update FBC info */