IRQ_CFG_IRQ_PER_REG  307 drivers/pinctrl/sunxi/pinctrl-sunxi.h 	u8 reg = (irq % IRQ_PER_BANK) / IRQ_CFG_IRQ_PER_REG * 0x04;
IRQ_CFG_IRQ_PER_REG  315 drivers/pinctrl/sunxi/pinctrl-sunxi.h 	u32 irq_num = irq % IRQ_CFG_IRQ_PER_REG;