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authorDave Airlie <airlied@redhat.com>2010-01-31 07:07:14 +1000
committerDave Airlie <airlied@redhat.com>2010-02-18 15:00:08 +1000
commit01d4503968f471f876fb44335800d2cf8dc5a2ce (patch)
tree5a3334b66f4725765f0812400ebbe6a388b7afdc /drivers/gpu/drm/radeon/atom.c
parente803e8b2628f3e9a42f45c5b7bb1f9821b08352c (diff)
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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>
Diffstat (limited to 'drivers/gpu/drm/radeon/atom.c')
-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 2a3df5599ab..7f152f66f19 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -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));
}