MC13XXX_IRQ_PER_REG
mc13xxx->irqs[i].reg_offset = i / MC13XXX_IRQ_PER_REG;
mc13xxx->irqs[i].mask = BIT(i % MC13XXX_IRQ_PER_REG);
struct regmap_irq irqs[MC13XXX_IRQ_PER_REG * MC13XXX_IRQ_REG_CNT];