RTC_INT_ALRM
alrm->enabled = readl(xrtcdev->reg_base + RTC_INT_MASK) & RTC_INT_ALRM;
writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_STS);
writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_EN);
writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_DIS);
if (!(status & (RTC_INT_SEC | RTC_INT_ALRM)))
writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_DIS);
if (status & RTC_INT_ALRM)
pending_alrm_irq = readl(xrtcdev->reg_base + RTC_INT_STS) & RTC_INT_ALRM;
writel(RTC_INT_ALRM, xrtcdev->reg_base + RTC_INT_EN);