blackfin: Convert blackfin to use read/update_persistent_clock

This patch converts the blackfin architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.

I have not built or tested this patch, so help from arch maintainers
would be appreciated.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1267675049-12337-10-git-send-email-johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 7 insertions, 6 deletions

diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 17c38c5b5b22..08dd3e83c187 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -348,9 +348,15 @@ static int __init bfin_clockevent_init(void)
         return 0;
 }
 
-void __init time_init(void)
+void read_persistent_clock(struct timespec *ts)
 {
         time_t secs_since_1970 = (365 * 37 + 9) * 24 * 60 * 60; /* 1 Jan 2007 */
+        ts->tv_sec = secs_since_1970;
+        ts->tv_nsec = 0;
+}
+
+void __init time_init(void)
+{
 
 #ifdef CONFIG_RTC_DRV_BFIN
         /* [#2663] hack to filter junk RTC values that would cause
@@ -363,11 +369,6 @@ void __init time_init(void)
         }
 #endif
 
-        /* Initialize xtime. From now on, xtime is updated with timer interrupts */
-        xtime.tv_sec = secs_since_1970;
-        xtime.tv_nsec = 0;
-        set_normalized_timespec(&wall_to_monotonic, -xtime.tv_sec, -xtime.tv_nsec);
-
         bfin_cs_cycles_init();
         bfin_cs_gptimer0_init();
         bfin_clockevent_init();