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Groups > linux.kernel > #1351072 > unrolled thread

[PATCH] rtc: hym8563: fix invalid year calculation

Started byAlexander Kochetkov <al.kochet@gmail.com>
First post2016-03-06 10:50 +0100
Last post2016-03-10 23:50 +0100
Articles 2 — 2 participants

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  [PATCH] rtc: hym8563: fix invalid year calculation Alexander Kochetkov <al.kochet@gmail.com> - 2016-03-06 10:50 +0100
    Re: [PATCH] rtc: hym8563: fix invalid year calculation Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2016-03-10 23:50 +0100

#1351072 — [PATCH] rtc: hym8563: fix invalid year calculation

FromAlexander Kochetkov <al.kochet@gmail.com>
Date2016-03-06 10:50 +0100
Subject[PATCH] rtc: hym8563: fix invalid year calculation
Message-ID<r9Du1-3bG-1@gated-at.bofh.it>
Year field must be in BCD format, according to
hym8563 datasheet.

Due to the bug year 2016 became 2010.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
---
 drivers/rtc/rtc-hym8563.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
index 097325d..b1b4746 100644
--- a/drivers/rtc/rtc-hym8563.c
+++ b/drivers/rtc/rtc-hym8563.c
@@ -144,7 +144,7 @@ static int hym8563_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	 * it does not seem to carry it over a subsequent write/read.
 	 * So we'll limit ourself to 100 years, starting at 2000 for now.
 	 */
-	buf[6] = tm->tm_year - 100;
+	buf[6] = bin2bcd(tm->tm_year - 100);
 
 	/*
 	 * CTL1 only contains TEST-mode bits apart from stop,
-- 
1.7.9.5

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#1355433

FromAlexandre Belloni <alexandre.belloni@free-electrons.com>
Date2016-03-10 23:50 +0100
Message-ID<rbhz4-59y-9@gated-at.bofh.it>
In reply to#1351072
On 06/03/2016 at 12:43:57 +0300, Alexander Kochetkov wrote :
> Year field must be in BCD format, according to
> hym8563 datasheet.
> 
> Due to the bug year 2016 became 2010.
> 
> Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
> ---
>  drivers/rtc/rtc-hym8563.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
Applied, thanks.

-- 
Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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