diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-01-31 07:07:14 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-02-23 07:37:57 -0800 |
| commit | 2acc8d9f806fad17c81c91b3266775b78894f252 (patch) | |
| tree | ef967ce394223fc327015325adb9633a74f35e14 | |
| parent | 498a84db834a62eef2e5cb2fb85d051c39f89fff (diff) | |
| download | linux-ak78xx-2acc8d9f806fad17c81c91b3266775b78894f252.tar.gz | |
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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c index d67c42555ab..fed2291139c 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)); } |