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@xxxxxxxxx>
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@xxxxxxxxx>
Cc: Daniel Mack <daniel@xxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxx 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
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