IRQ_KEYPAD         21 arch/arm/mach-pxa/include/mach/irqs.h #define IRQ_KEYPAD	PXA_IRQ(4)	/* Key pad controller */
IRQ_KEYPAD         63 arch/arm/mach-s3c64xx/include/mach/irqs.h #define IRQ_KEYPAD		S3C64XX_IRQ_VIC0(22)