LWMON5: POST RTC fix
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>
diff --git a/drivers/rtc/m41t60.c b/drivers/rtc/m41t60.c
index 7c80143..8a32ea0 100644
--- a/drivers/rtc/m41t60.c
+++ b/drivers/rtc/m41t60.c
@@ -170,12 +170,12 @@
return data;
}
-void rtc_get(struct rtc_time *tmp)
+int rtc_get(struct rtc_time *tmp)
{
uchar const *const data = rtc_validate();
if (!data)
- return;
+ return -1;
tmp->tm_sec = bcd2bin(data[RTC_SEC] & 0x7F);
tmp->tm_min = bcd2bin(data[RTC_MIN] & 0x7F);
@@ -190,6 +190,8 @@
debug("Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
+
+ return 0;
}
void rtc_set(struct rtc_time *tmp)