dm: rtc: Rename to_tm() to rtc_to_tm() and add error code

Rename this function so that it is clear that it is provided by the RTC.
Also return an error when it cannot function as expected. This is unlikely
to occur since it works for dates since 1752 and many RTCs do not support
such old dates. Still it is better to be accurate.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/sntp.c b/net/sntp.c
index 6422eef..d7b9e55 100644
--- a/net/sntp.c
+++ b/net/sntp.c
@@ -68,7 +68,7 @@ static void sntp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
 	 */
 	memcpy(&seconds, &rpktp->transmit_timestamp, sizeof(ulong));
 
-	to_tm(ntohl(seconds) - 2208988800UL + net_ntp_time_offset, &tm);
+	rtc_to_tm(ntohl(seconds) - 2208988800UL + net_ntp_time_offset, &tm);
 #if defined(CONFIG_CMD_DATE)
 	rtc_set(&tm);
 #endif