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/rs5c372.c b/drivers/rtc/rs5c372.c
index 3d1346e..1c9b752 100644
--- a/drivers/rtc/rs5c372.c
+++ b/drivers/rtc/rs5c372.c
@@ -166,7 +166,7 @@
/*
* Get the current time from the RTC
*/
-void
+int
rtc_get (struct rtc_time *tmp)
{
unsigned char buf[RS5C372_RAM_SIZE];
@@ -176,7 +176,7 @@
rs5c372_enable();
if (!setup_done)
- return;
+ return -1;
memset(buf, 0, sizeof(buf));
@@ -184,12 +184,12 @@
ret = rs5c372_readram(buf, RS5C372_RAM_SIZE);
if (ret != 0) {
printf("%s: failed\n", __FUNCTION__);
- return;
+ return -1;
}
rs5c372_convert_to_time(tmp, buf);
- return;
+ return 0;
}
/*
