SUN6I_ALRM_IRQ_EN
writel(alrm_irq_val, chip->base + SUN6I_ALRM_IRQ_EN);
alrm_en = readl(chip->base + SUN6I_ALRM_IRQ_EN);
writel(0, chip->base + SUN6I_ALRM_IRQ_EN);