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authorYuri Tikhonov <yur@emcraft.com>2008-03-20 17:56:04 +0300
committerWolfgang Denk <wd@denx.de>2008-03-20 21:48:46 +0100
commitb73a19e1609d0f705cbab8014ca17aefe89e4c76 (patch)
tree4f6752b24fe118da445233479396497d516a1e50 /drivers/rtc/ds174x.c
parent23e20aa6488e6c0622496549861bfdc74108debe (diff)
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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>
Diffstat (limited to 'drivers/rtc/ds174x.c')
-rw-r--r--drivers/rtc/ds174x.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/rtc/ds174x.c b/drivers/rtc/ds174x.c
index 5f85a68..81a9cb3 100644
--- a/drivers/rtc/ds174x.c
+++ b/drivers/rtc/ds174x.c
@@ -65,7 +65,7 @@ static unsigned bcd2bin(uchar c);
/* ------------------------------------------------------------------------- */
-void rtc_get( struct rtc_time *tmp )
+int rtc_get( struct rtc_time *tmp )
{
uchar sec, min, hour;
uchar mday, wday, mon, year;
@@ -142,6 +142,8 @@ void rtc_set( struct rtc_time *tmp )
/* unlock clock registers after read */
rtc_write( RTC_CONTROLA, ( reg_a & ~RTC_CA_WRITE ));
+
+ return 0;
}
void rtc_reset (void)