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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2007-03-04 20:13:13 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-03-04 20:13:13 +0000
commit0ed8f210e68236f2034f827596f0a8201a907a9f (patch)
tree4e33c0ecdcb9d3abbf4643df2890faad3beaa425
parentf5e5b734d4c9ccc1f5f68bdf545bdc4b19681d28 (diff)
[ARM] rtc-pcf8583: correct month and year offsets
No, today is not 4th April 3907, it's 4th March 2007. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--drivers/rtc/rtc-pcf8583.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/rtc/rtc-pcf8583.c b/drivers/rtc/rtc-pcf8583.c
index a69db618553..a33a2d69859 100644
--- a/drivers/rtc/rtc-pcf8583.c
+++ b/drivers/rtc/rtc-pcf8583.c
@@ -85,7 +85,7 @@ static int pcf8583_get_datetime(struct i2c_client *client, struct rtc_time *dt)
dt->tm_min = BCD2BIN(buf[2]);
dt->tm_hour = BCD2BIN(buf[3]);
dt->tm_mday = BCD2BIN(buf[4]);
- dt->tm_mon = BCD2BIN(buf[5]);
+ dt->tm_mon = BCD2BIN(buf[5]) - 1;
}
return ret == 2 ? 0 : -EIO;
@@ -106,7 +106,7 @@ static int pcf8583_set_datetime(struct i2c_client *client, struct rtc_time *dt,
if (datetoo) {
len = 8;
buf[6] = BIN2BCD(dt->tm_mday) | (dt->tm_year << 6);
- buf[7] = BIN2BCD(dt->tm_mon) | (dt->tm_wday << 5);
+ buf[7] = BIN2BCD(dt->tm_mon + 1) | (dt->tm_wday << 5);
}
ret = i2c_master_send(client, (char *)buf, len);
@@ -226,7 +226,7 @@ static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm)
*/
year_offset += 4;
- tm->tm_year = real_year + year_offset + year[1] * 100;
+ tm->tm_year = (real_year + year_offset + year[1] * 100) - 1900;
return 0;
}
@@ -237,6 +237,7 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
unsigned char year[2], chk;
struct rtc_mem cmos_year = { CMOS_YEAR, sizeof(year), year };
struct rtc_mem cmos_check = { CMOS_CHECKSUM, 1, &chk };
+ unsigned int proper_year = tm->tm_year + 1900;
int ret;
/*
@@ -258,8 +259,8 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
chk -= year[1] + year[0];
- year[1] = tm->tm_year / 100;
- year[0] = tm->tm_year % 100;
+ year[1] = proper_year / 100;
+ year[0] = proper_year % 100;
chk += year[1] + year[0];