[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>
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1 changed files with 6 additions and 5 deletions
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@ -85,7 +85,7 @@ static int pcf8583_get_datetime(struct i2c_client *client, struct rtc_time *dt)
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dt->tm_min = BCD2BIN(buf[2]);
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dt->tm_hour = BCD2BIN(buf[3]);
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dt->tm_mday = BCD2BIN(buf[4]);
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dt->tm_mon = BCD2BIN(buf[5]);
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dt->tm_mon = BCD2BIN(buf[5]) - 1;
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}
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return ret == 2 ? 0 : -EIO;
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@ -106,7 +106,7 @@ static int pcf8583_set_datetime(struct i2c_client *client, struct rtc_time *dt,
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if (datetoo) {
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len = 8;
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buf[6] = BIN2BCD(dt->tm_mday) | (dt->tm_year << 6);
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buf[7] = BIN2BCD(dt->tm_mon) | (dt->tm_wday << 5);
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buf[7] = BIN2BCD(dt->tm_mon + 1) | (dt->tm_wday << 5);
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}
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ret = i2c_master_send(client, (char *)buf, len);
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@ -226,7 +226,7 @@ static int pcf8583_rtc_read_time(struct device *dev, struct rtc_time *tm)
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*/
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year_offset += 4;
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tm->tm_year = real_year + year_offset + year[1] * 100;
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tm->tm_year = (real_year + year_offset + year[1] * 100) - 1900;
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return 0;
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}
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@ -237,6 +237,7 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
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unsigned char year[2], chk;
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struct rtc_mem cmos_year = { CMOS_YEAR, sizeof(year), year };
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struct rtc_mem cmos_check = { CMOS_CHECKSUM, 1, &chk };
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unsigned int proper_year = tm->tm_year + 1900;
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int ret;
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/*
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@ -258,8 +259,8 @@ static int pcf8583_rtc_set_time(struct device *dev, struct rtc_time *tm)
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chk -= year[1] + year[0];
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year[1] = tm->tm_year / 100;
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year[0] = tm->tm_year % 100;
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year[1] = proper_year / 100;
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year[0] = proper_year % 100;
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chk += year[1] + year[0];
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