[RTC] rtc-sa1100: remove dependence on asm/rtc.h

Move the two functions rtc-sa1100 wants from the old ARM RTC library
into the rtc-sa1100 driver.

Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 36 insertions, 1 deletions

diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 82f62d25f921..e31a687b44b9 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -33,7 +33,6 @@
 
 #include <asm/hardware.h>
 #include <asm/irq.h>
-#include <asm/rtc.h>
 
 #ifdef CONFIG_ARCH_PXA
 #include <asm/arch/pxa-regs.h>
@@ -47,6 +46,42 @@ static unsigned long rtc_freq = 1024;
 static struct rtc_time rtc_alarm;
 static DEFINE_SPINLOCK(sa1100_rtc_lock);
 
+static inline int rtc_periodic_alarm(struct rtc_time *tm)
+{
+        return  (tm->tm_year == -1) ||
+                ((unsigned)tm->tm_mon >= 12) ||
+                ((unsigned)(tm->tm_mday - 1) >= 31) ||
+                ((unsigned)tm->tm_hour > 23) ||
+                ((unsigned)tm->tm_min > 59) ||
+                ((unsigned)tm->tm_sec > 59);
+}
+
+/*
+ * Calculate the next alarm time given the requested alarm time mask
+ * and the current time.
+ */
+static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc_time *alrm)
+{
+        unsigned long next_time;
+        unsigned long now_time;
+
+        next->tm_year = now->tm_year;
+        next->tm_mon = now->tm_mon;
+        next->tm_mday = now->tm_mday;
+        next->tm_hour = alrm->tm_hour;
+        next->tm_min = alrm->tm_min;
+        next->tm_sec = alrm->tm_sec;
+
+        rtc_tm_to_time(now, &now_time);
+        rtc_tm_to_time(next, &next_time);
+
+        if (next_time < now_time) {
+                /* Advance one day */
+                next_time += 60 * 60 * 24;
+                rtc_time_to_tm(next_time, next);
+        }
+}
+
 static int rtc_update_alarm(struct rtc_time *alrm)
 {
         struct rtc_time alarm_tm, now_tm;