tree b297da641ef1fec5dfc3ef5f60c6e922d3d21b9c
parent f4b6722248e4991a65e545d6b19e4497202e8a8a
author Tero Kristo <t-kristo@ti.com> 1445581797 +0300
committer Alexandre Belloni <alexandre.belloni@free-electrons.com> 1446988351 +0100

rtc: ds1307: Fix alarm programming for mcp794xx

mcp794xx alarm registers must be written in BCD format. However, the
alarm programming logic neglected this by adding one to the value
after bin2bcd conversion has been already done, writing bad values
to month register in case the alarm being set is in October. In this
case, the alarm month value becomes 0x0a instead of the expected 0x10.

Fix by moving the +1 addition within the bin2bcd call also.

Fixes: 1d1945d261a2 ("drivers/rtc/rtc-ds1307.c: add alarm support for mcp7941x chips")

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>