diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 5ea7def91ab0f4b5b2a69bce94d14b82f655620d..39afbd5c1cfea538e4b2c40bd71a56ed1bcb01eb 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -42,8 +42,6 @@
 #define INTC_MIR_SET0		0x008c
 #define INTC_PENDING_IRQ0	0x0098
 #define INTC_ILR0		0x0100
-/* Number of IRQ state bits in each MIR register */
-#define IRQ_BITS_PER_REG	32
 
 #define OMAP2_IRQ_BASE		OMAP2_L4_IO_ADDRESS(OMAP24XX_IC_BASE)
 #define OMAP3_IRQ_BASE		OMAP2_L4_IO_ADDRESS(OMAP34XX_IC_BASE)