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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/ds1306.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/ds1306.c')
-rw-r--r--drivers/rtc/ds1306.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/rtc/ds1306.c b/drivers/rtc/ds1306.c
index 89e433d..1c8ac7f 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;
}
/* ------------------------------------------------------------------------- */