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authorEmil Bartczak <emilbart@gmail.com>2016-12-08 02:27:38 +0300
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-12-19 02:59:22 +0300
commite72765c648a172f052486cba9688ddc28f23140b (patch)
tree121024aa765aeb76c0bc4fc2b646334d91122372 /drivers/rtc
parentbcf18d88ac16c1a86bac7e8f5f4b1de1f752865f (diff)
downloadlinux-e72765c648a172f052486cba9688ddc28f23140b.tar.xz
rtc: mcp795: fix bitmask value for leap year (LP).
According the datasheet the leap year is a fifth bit in month register. Signed-off-by: Emil Bartczak <emilbart@gmail.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-mcp795.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c
index 0389ee03c660..5fbdb4c20a9b 100644
--- a/drivers/rtc/rtc-mcp795.c
+++ b/drivers/rtc/rtc-mcp795.c
@@ -40,6 +40,7 @@
#define MCP795_ST_BIT 0x80
#define MCP795_24_BIT 0x40
+#define MCP795_LP_BIT BIT(5)
static int mcp795_rtcc_read(struct device *dev, u8 addr, u8 *buf, u8 count)
{
@@ -109,7 +110,7 @@ static int mcp795_set_time(struct device *dev, struct rtc_time *tim)
data[1] = (data[1] & 0x80) | bin2bcd(tim->tm_min);
data[2] = bin2bcd(tim->tm_hour);
data[4] = bin2bcd(tim->tm_mday);
- data[5] = (data[5] & 0x10) | bin2bcd(tim->tm_mon);
+ data[5] = (data[5] & MCP795_LP_BIT) | bin2bcd(tim->tm_mon);
if (tim->tm_year > 100)
tim->tm_year -= 100;