[PATCH] RTC: Remove RTC UIP synchronization on Alpha
Matt Mackall [Tue, 28 Mar 2006 09:56:09 +0000 (01:56 -0800)]
The sync may still be needed for CPU clock calibration but we don't sync in
the regular case.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/alpha/kernel/time.c

index 6b2921b..3859749 100644 (file)
@@ -314,10 +314,11 @@ time_init(void)
        if (!est_cycle_freq)
                est_cycle_freq = validate_cc_value(calibrate_cc_with_pit());
 
-       cc1 = rpcc_after_update_in_progress();
+       cc1 = rpcc();
 
        /* Calibrate CPU clock -- attempt #2.  */
        if (!est_cycle_freq) {
+               cc1 = rpcc_after_update_in_progress();
                cc2 = rpcc_after_update_in_progress();
                est_cycle_freq = validate_cc_value(cc2 - cc1);
                cc1 = cc2;