linux-kernel - [PATCH] rtc: hym8563: fix invalid year calculation

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Message-Id: <1457257437-18975-1-git-send-email-al.kochet@gmail.com>
Date:	Sun,  6 Mar 2016 12:43:57 +0300
From:	Alexander Kochetkov <al.kochet@...il.com>
To:	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc:	rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org,
	Alexander Kochetkov <al.kochet@...il.com>
Subject: [PATCH] rtc: hym8563: fix invalid year calculation

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@...il.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