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authorDave Airlie <airlied@redhat.com>2010-01-31 07:07:14 +1000
committerGreg Kroah-Hartman <gregkh@suse.de>2010-02-23 07:37:57 -0800
commit2acc8d9f806fad17c81c91b3266775b78894f252 (patch)
treeef967ce394223fc327015325adb9633a74f35e14
parent498a84db834a62eef2e5cb2fb85d051c39f89fff (diff)
drm/radeon/kms: use udelay for short delays
commit 01d4503968f471f876fb44335800d2cf8dc5a2ce upstream. 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 Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/gpu/drm/radeon/atom.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index d67c42555ab9..fed2291139c1 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -607,7 +607,7 @@ 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));
}