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LWMON5: POST RTC fix

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Modify the RTC API to provide one a status for the time reported by
the rtc_get() function:
  0 - a reliable time is guaranteed,
< 0 - a reliable time isn't guaranteed (power fault, clock issues,
      and so on).

The RTC chip drivers are responsible for providing this info if the
corresponding chip supports such functionality. If not - always
report that the time is reliable.

The POST RTC test was modified to detect the RTC faults utilizing
this new rtc_get() feature.

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
This commit is contained in:
Yuri Tikhonov 2008-03-20 17:56:04 +03:00 • committed by Wolfgang Denk
parent 23e20aa648
commit b73a19e160
34 changed files with 146 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/rtc/bfin_rtc.c
View file

@ -85,7 +85,7 @@ void rtc_set(struct rtc_time *tmp)
}
/* Read the time from the RTC_STAT. time_in_seconds is seconds since Jan 1970 */
void rtc_get(struct rtc_time *tmp)
int rtc_get(struct rtc_time *tmp)
{
uint32_t cur_rtc_stat;
int time_in_sec;
@ -95,7 +95,7 @@ void rtc_get(struct rtc_time *tmp)
if (tmp == NULL) {
puts("Error getting the date/time\n");
return;
return -1;
}
wait_for_complete();
@ -112,6 +112,8 @@ void rtc_get(struct rtc_time *tmp)
/* Calculate the total number of seconds since epoch */
time_in_sec = (tm_sec) + MIN_TO_SECS(tm_min) + HRS_TO_SECS(tm_hr) + DAYS_TO_SECS(tm_day);
to_tm(time_in_sec, tmp);
return 0;
}
#endif