SIRFSOC_USP_LOOP_BACK_CTRL  116 drivers/tty/serial/sirfsoc_uart.c 				SIRFSOC_USP_LOOP_BACK_CTRL);
SIRFSOC_USP_LOOP_BACK_CTRL  125 drivers/tty/serial/sirfsoc_uart.c 				~SIRFSOC_USP_LOOP_BACK_CTRL);