USR1_RTSD         708 drivers/tty/serial/imx.c 	imx_uart_writel(sport, USR1_RTSD, USR1);
USR1_RTSD         909 drivers/tty/serial/imx.c 		usr1 &= ~USR1_RTSD;
USR1_RTSD         933 drivers/tty/serial/imx.c 	if (usr1 & USR1_RTSD) {
USR1_RTSD        1387 drivers/tty/serial/imx.c 	imx_uart_writel(sport, USR1_RTSD | USR1_DTRD, USR1);