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rtc: pcf2127: don't add/subtract 1 to tm_mon

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As noted in rtc_def.h, the tm_mon field in struct rtc_time is 1-12,
unlike in struct tm where it is 0-11. Currently, running "date" prints
the wrong

Date: 2020-04-01 (Friday)    Time: 13:05:30

and setting the RTC via the date command is also broken.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
This commit is contained in:
Rasmus Villemoes 2020-05-01 15:24:50 +02:00 committed by Tom Rini
parent 54be09cd8f
commit b8a42e0fcb
1 changed files with 2 additions and 2 deletions
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4
drivers/rtc/pcf2127.c
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@ -56,7 +56,7 @@ static int pcf2127_rtc_set(struct udevice *dev, const struct rtc_time *tm)
buf[i++] = tm->tm_wday & 0x07;
/* month, 1 - 12 */
buf[i++] = bin2bcd(tm->tm_mon + 1);
buf[i++] = bin2bcd(tm->tm_mon);
/* year */
buf[i++] = bin2bcd(tm->tm_year % 100);
@ -83,7 +83,7 @@ static int pcf2127_rtc_get(struct udevice *dev, struct rtc_time *tm)
tm->tm_min = bcd2bin(buf[PCF2127_REG_MN] & 0x7F);
tm->tm_hour = bcd2bin(buf[PCF2127_REG_HR] & 0x3F);
tm->tm_mday = bcd2bin(buf[PCF2127_REG_DM] & 0x3F);
tm->tm_mon = bcd2bin(buf[PCF2127_REG_MO] & 0x1F) - 1;
tm->tm_mon = bcd2bin(buf[PCF2127_REG_MO] & 0x1F);
tm->tm_year = bcd2bin(buf[PCF2127_REG_YR]) + 1900;
if (tm->tm_year < 1970)
tm->tm_year += 100; /* assume we are in 1970...2069 */