From: Chris Cui <chris.wei.cui@gmail.com>
To: Alessandro Zummo <a.zummo@towertech.it>, rtc-linux@googlegroups.com
Cc: linux-kernel@vger.kernel.org, Chris Cui <chris.wei.cui@gmail.com>
Subject: [PATCH V2] rtc: fix pcf8523 month definition
Date: Thu, 10 Apr 2014 01:07:32 +0800 [thread overview]
Message-ID: <1397063252-26065-1-git-send-email-chris.wei.cui@gmail.com> (raw)
This is the correct patch.
PCF8523 uses 1-12 to represent month according to datasheet.
link: www.nxp.com/documents/data_sheet/PCF8523.pdf.
Signed-off-by: Chris Cui <chris.wei.cui@gmail.com>
---
drivers/rtc/rtc-pcf8523.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/rtc/rtc-pcf8523.c b/drivers/rtc/rtc-pcf8523.c
index 5c8f822..4cdb64b 100644
--- a/drivers/rtc/rtc-pcf8523.c
+++ b/drivers/rtc/rtc-pcf8523.c
@@ -206,7 +206,7 @@ static int pcf8523_rtc_read_time(struct device *dev, struct rtc_time *tm)
tm->tm_hour = bcd2bin(regs[2] & 0x3f);
tm->tm_mday = bcd2bin(regs[3] & 0x3f);
tm->tm_wday = regs[4] & 0x7;
- tm->tm_mon = bcd2bin(regs[5] & 0x1f);
+ tm->tm_mon = bcd2bin(regs[5] & 0x1f) - 1;
tm->tm_year = bcd2bin(regs[6]) + 100;
return rtc_valid_tm(tm);
@@ -229,7 +229,7 @@ static int pcf8523_rtc_set_time(struct device *dev, struct rtc_time *tm)
regs[3] = bin2bcd(tm->tm_hour);
regs[4] = bin2bcd(tm->tm_mday);
regs[5] = tm->tm_wday;
- regs[6] = bin2bcd(tm->tm_mon);
+ regs[6] = bin2bcd(tm->tm_mon + 1);
regs[7] = bin2bcd(tm->tm_year - 100);
msg.addr = client->addr;
--
1.8.3.2
reply other threads:[~2014-04-09 17:10 UTC|newest]
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