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drm/radeon/kms: use udelay for short delays

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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>
This commit is contained in:
Dave Airlie 2010-01-31 07:07:14 +10:00
parent e803e8b262
commit 01d4503968
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/radeon/atom.c
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@ -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));
}