Commit 4e7a9e2e authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

rtc: ds1511: drop useless computation 

All the callers of ds1511_rtc_set_time will use the same epoch for tm_year
which is defined as the number of years minus 1900 since POSIX.1-2001.

Link: https://lore.kernel.org/r/20240227230431.1837717-2-alexandre.belloni@bootlin.com


Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent f4282a43

drivers/rtc/rtc-ds1511.c

+1 −12
Original line number Diff line number Diff line
@@ -166,24 +166,13 @@ ds1511_wdog_disable(void) 
}

#endif



/*

 * set the rtc chip's idea of the time.

 * stupidly, some callers call with year unmolested;

 * and some call with  year = year - 1900.  thanks.

 */

static int ds1511_rtc_set_time(struct device *dev, struct rtc_time *rtc_tm)

{

	u8 mon, day, dow, hrs, min, sec, yrs, cen;

	unsigned long flags;



	/*

	 * won't have to change this for a while

	 */

	if (rtc_tm->tm_year < 1900)

		rtc_tm->tm_year += 1900;



	yrs = rtc_tm->tm_year % 100;

	cen = rtc_tm->tm_year / 100;

	cen = 19 + rtc_tm->tm_year / 100;

	mon = rtc_tm->tm_mon + 1;   /* tm_mon starts at zero */

	day = rtc_tm->tm_mday;

	dow = rtc_tm->tm_wday & 0x7; /* automatic BCD */