[PATCH] mmtimer quietness

Quiet mmtimer on non-SGI boxes (previously it printed "mmtimer: unable to
determine clock frequency").
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/char/mmtimer.c

@@ -184,6 +184,9 @@ static struct miscdevice mmtimer_miscdev = {
  */
 static int __init mmtimer_init(void)
 {
+	if (!ia64_platform_is("sn2"))
+		return -1;
+
 	/*
 	 * Sanity check the cycles/sec variable
 	 */