releases/4.4.9/rtc-hym8563-fix-invalid-year-calculation.patch

   1 From d5861262210067fc01b2fb4f7af2fd85a3453f15 Mon Sep 17 00:00:00 2001
   2 From: Alexander Kochetkov <al.kochet@gmail.com>
   3 Date: Sun, 6 Mar 2016 12:43:57 +0300
   4 Subject: rtc: hym8563: fix invalid year calculation
   5
   6 From: Alexander Kochetkov <al.kochet@gmail.com>
   7
   8 commit d5861262210067fc01b2fb4f7af2fd85a3453f15 upstream.
   9
  10 Year field must be in BCD format, according to
  11 hym8563 datasheet.
  12
  13 Due to the bug year 2016 became 2010.
  14
  15 Fixes: dcaf03849352 ("rtc: add hym8563 rtc-driver")
  16 Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
  17 Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
  18 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  19
  20 ---
  21  drivers/rtc/rtc-hym8563.c |    2 +-
  22  1 file changed, 1 insertion(+), 1 deletion(-)
  23
  24 --- a/drivers/rtc/rtc-hym8563.c
  25 +++ b/drivers/rtc/rtc-hym8563.c
  26 @@ -144,7 +144,7 @@ static int hym8563_rtc_set_time(struct d
  27          * it does not seem to carry it over a subsequent write/read.
  28          * So we'll limit ourself to 100 years, starting at 2000 for now.
  29          */
  30 -       buf[6] = tm->tm_year - 100;
  31 +       buf[6] = bin2bcd(tm->tm_year - 100);
  32
  33         /*
  34          * CTL1 only contains TEST-mode bits apart from stop,