Source of rtc-mv.c - linux-imx - PHYTEC BitBucket (Stash)

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    alm->time.tm_sec = bcd2bin(second);
    alm->time.tm_min = bcd2bin(minute);
    alm->time.tm_hour = bcd2bin(hour);
    alm->time.tm_mday = bcd2bin(day);
    alm->time.tm_wday = bcd2bin(wday);
    alm->time.tm_mon = bcd2bin(month) - 1;
    /* hw counts from year 2000, but tm_year is relative to 1900 */
    alm->time.tm_year = bcd2bin(year) + 100;
​
    if (rtc_valid_tm(&alm->time) < 0) {
        dev_err(dev, "retrieved alarm date/time is not valid.\n");
        rtc_time_to_tm(0, &alm->time);
    }
​
    alm->enabled = !!readl(ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS);
    return 0;
​
    return rtc_valid_tm(&alm->time);
}
​
static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
{
    struct rtc_plat_data *pdata = dev_get_drvdata(dev);
    void __iomem *ioaddr = pdata->ioaddr;
    u32 rtc_reg = 0;
​
    if (alm->time.tm_sec >= 0)
        rtc_reg |= (RTC_ALARM_VALID | bin2bcd(alm->time.tm_sec))