+ drivers-rtc-rtc-mxcc-fix-setting-time-for-mx1-soc.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     Subject: drivers/rtc/rtc-mxc.c: fix setting time for MX1 SoC
has been added to the -mm tree.  Its filename is
     drivers-rtc-rtc-mxcc-fix-setting-time-for-mx1-soc.patch

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------------------------------------------------------
From: Yauhen Kharuzhy <jekhor@gmail.com>
Subject: drivers/rtc/rtc-mxc.c: fix setting time for MX1 SoC

There is no way to track year in the i.MX1 RTC: Days Counter register is
9-bit wide only.  Attempt to save date after 1970-01-01 plus 512 days
causes endless loop in mxc_rtc_set_mmss().  Fix this by resetting year to
1970.

Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/rtc/rtc-mxc.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff -puN drivers/rtc/rtc-mxc.c~drivers-rtc-rtc-mxcc-fix-setting-time-for-mx1-soc drivers/rtc/rtc-mxc.c
--- a/drivers/rtc/rtc-mxc.c~drivers-rtc-rtc-mxcc-fix-setting-time-for-mx1-soc
+++ a/drivers/rtc/rtc-mxc.c
@@ -290,6 +290,17 @@ static int mxc_rtc_read_time(struct devi
  */
 static int mxc_rtc_set_mmss(struct device *dev, unsigned long time)
 {
+	/* RTC_DAYR register is 9-bit in MX1 SoC,
+	 * save time and day of year only
+	 */
+	if (cpu_is_mx1()) {
+		struct rtc_time tm;
+
+		rtc_time_to_tm(time, &tm);
+		tm.tm_year = 70;
+		rtc_tm_to_time(&tm, &time);
+	}
+
 	/* Avoid roll-over from reading the different registers */
 	do {
 		set_alarm_or_time(dev, MXC_RTC_TIME, time);
_
Subject: Subject: drivers/rtc/rtc-mxc.c: fix setting time for MX1 SoC

Patches currently in -mm which might be from jekhor@gmail.com are

drivers-rtc-rtc-mxcc-fix-setting-time-for-mx1-soc.patch
drivers-rtc-rtc-mxcc-fix-setting-time-for-mx1-soc-fix.patch
drivers-rtc-rtc-mxcc-make-alarm-work.patch
drivers-rtc-rtc-mxcc-make-alarm-work-fix.patch