Commit 01d45039 authored Jan 31, 2010 by Dave Airlie

drm/radeon/kms: use udelay for short delays



For usec delays use udelay instead of scheduling, this should
allow reclocking to happen faster. This also was the cause
of reported 33s delays at bootup on certain systems.

fixes: freedesktop.org bug 25506

Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

parent e803e8b2

drivers/gpu/drm/radeon/atom.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -643,7 +643,7 @@ static void atom_op_delay(atom_exec_context ctx, int ptr, int arg)
		uint8_t count = U8((*ptr)++);
		SDEBUG(" count: %d\n", count);
		if (arg == ATOM_UNIT_MICROSEC)
		schedule_timeout_uninterruptible(usecs_to_jiffies(count));
		udelay(count);
		else
		schedule_timeout_uninterruptible(msecs_to_jiffies(count));
		}