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Diffstat (limited to 'arch/mn10300/kernel/rtc.c')
-rw-r--r--arch/mn10300/kernel/rtc.c27
1 files changed, 5 insertions, 22 deletions
diff --git a/arch/mn10300/kernel/rtc.c b/arch/mn10300/kernel/rtc.c
index 7978470b5749..815a933aafa8 100644
--- a/arch/mn10300/kernel/rtc.c
+++ b/arch/mn10300/kernel/rtc.c
@@ -26,17 +26,15 @@ static long last_rtc_update;
26/* time for RTC to update itself in ioclks */ 26/* time for RTC to update itself in ioclks */
27static unsigned long mn10300_rtc_update_period; 27static unsigned long mn10300_rtc_update_period;
28 28
29/* 29void read_persistent_clock(struct timespec *ts)
30 * read the current RTC time
31 */
32unsigned long __init get_initial_rtc_time(void)
33{ 30{
34 struct rtc_time tm; 31 struct rtc_time tm;
35 32
36 get_rtc_time(&tm); 33 get_rtc_time(&tm);
37 34
38 return mktime(tm.tm_year, tm.tm_mon, tm.tm_mday, 35 ts->tv_sec = mktime(tm.tm_year, tm.tm_mon, tm.tm_mday,
39 tm.tm_hour, tm.tm_min, tm.tm_sec); 36 tm.tm_hour, tm.tm_min, tm.tm_sec);
37 ts->tv_nsec = 0;
40} 38}
41 39
42/* 40/*
@@ -110,24 +108,9 @@ static int set_rtc_mmss(unsigned long nowtime)
110 return retval; 108 return retval;
111} 109}
112 110
113void check_rtc_time(void) 111int update_persistent_clock(struct timespec now)
114{ 112{
115 /* the RTC clock just finished ticking over again this second 113 return set_rtc_mms(now.tv_sec);
116 * - if we have an externally synchronized Linux clock, then update
117 * RTC clock accordingly every ~11 minutes. set_rtc_mmss() has to be
118 * called as close as possible to 500 ms before the new second starts.
119 */
120 if ((time_status & STA_UNSYNC) == 0 &&
121 xtime.tv_sec > last_rtc_update + 660 &&
122 xtime.tv_nsec / 1000 >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
123 xtime.tv_nsec / 1000 <= 500000 + ((unsigned) TICK_SIZE) / 2
124 ) {
125 if (set_rtc_mmss(xtime.tv_sec) == 0)
126 last_rtc_update = xtime.tv_sec;
127 else
128 /* do it again in 60s */
129 last_rtc_update = xtime.tv_sec - 600;
130 }
131} 114}
132 115
133/* 116/*