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/ds1306.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/rtc/ds1306.c') diff --git a/drivers/rtc/ds1306.c b/drivers/rtc/ds1306.c index 89e433dabd8..1c8ac7f2927 100644 --- a/drivers/rtc/ds1306.c +++ b/drivers/rtc/ds1306.c @@ -91,7 +91,7 @@ static void init_spi (void); /* ------------------------------------------------------------------------- */ /* read clock time from DS1306 and return it in *tmp */ -void rtc_get (struct rtc_time *tmp) +int rtc_get (struct rtc_time *tmp) { volatile immap_t *immap = (immap_t *) CFG_IMMR; unsigned char spi_byte; /* Data Byte */ @@ -141,6 +141,8 @@ void rtc_get (struct rtc_time *tmp) 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; } /* ------------------------------------------------------------------------- */ @@ -304,7 +306,7 @@ static unsigned char rtc_read (unsigned char reg); static void rtc_write (unsigned char reg, unsigned char val); /* read clock time from DS1306 and return it in *tmp */ -void rtc_get (struct rtc_time *tmp) +int rtc_get (struct rtc_time *tmp) { unsigned char sec, min, hour, mday, wday, mon, year; @@ -349,6 +351,8 @@ void rtc_get (struct rtc_time *tmp) 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; } /* ------------------------------------------------------------------------- */ -- cgit v1.2.3