R_DUART_ISRREG    308 arch/mips/include/asm/sibyte/sb1250_regs.h #define A_DUART_ISRREG(chan)	    A_DUART_CTRLREG(R_DUART_ISRREG(chan))
R_DUART_ISRREG    452 drivers/tty/serial/sb1250-duart.c 				      R_DUART_ISRREG((uport->line) % 2));