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>
diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c
index 0389ee0..5fbdb4c 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 @@
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;