From b73a19e1609d0f705cbab8014ca17aefe89e4c76 Mon Sep 17 00:00:00 2001 From: Yuri Tikhonov Date: Thu, 20 Mar 2008 17:56:04 +0300 Subject: 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 --- drivers/rtc/ds1337.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers/rtc/ds1337.c') diff --git a/drivers/rtc/ds1337.c b/drivers/rtc/ds1337.c index c636ac5..50ab446 100644 --- a/drivers/rtc/ds1337.c +++ b/drivers/rtc/ds1337.c @@ -84,8 +84,9 @@ static unsigned bcd2bin (uchar c); /* * Get the current time from the RTC */ -void rtc_get (struct rtc_time *tmp) +int rtc_get (struct rtc_time *tmp) { + int rel = 0; uchar sec, min, hour, mday, wday, mon_cent, year, control, status; control = rtc_read (RTC_CTL_REG_ADDR); @@ -107,6 +108,7 @@ void rtc_get (struct rtc_time *tmp) /* clear the OSF flag */ rtc_write (RTC_STAT_REG_ADDR, rtc_read (RTC_STAT_REG_ADDR) & ~RTC_STAT_BIT_OSF); + rel = -1; } tmp->tm_sec = bcd2bin (sec & 0x7F); @@ -122,6 +124,8 @@ void rtc_get (struct rtc_time *tmp) DEBUGR ("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 rel; } -- cgit v1.1