434 	/* in rs485 mode disable transmitter */  in imx_uart_stop_tx()
435 	if (port->rs485.flags & SER_RS485_ENABLED) {  in imx_uart_stop_tx()
439 			if (port->rs485.delay_rts_after_send > 0) {  in imx_uart_stop_tx()
441 					 port->rs485.delay_rts_after_send);  in imx_uart_stop_tx()
455 			if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND)  in imx_uart_stop_tx()
492 	if (port->rs485.flags & SER_RS485_ENABLED &&  in imx_uart_stop_rx()
493 	    port->rs485.flags & SER_RS485_RTS_ON_SEND &&  in imx_uart_stop_rx()
597 	else if (sport->port.rs485.flags & SER_RS485_ENABLED) {  in imx_uart_dma_tx_callback()
682 	if (port->rs485.flags & SER_RS485_ENABLED) {  in imx_uart_start_tx()
685 			if (port->rs485.flags & SER_RS485_RTS_ON_SEND)  in imx_uart_start_tx()
691 			if (!(port->rs485.flags & SER_RS485_RX_DURING_TX) &&  in imx_uart_start_tx()
697 			if (port->rs485.delay_rts_before_send > 0) {  in imx_uart_start_tx()
699 					 port->rs485.delay_rts_before_send);  in imx_uart_start_tx()
1074 	if (!(port->rs485.flags & SER_RS485_ENABLED)) {  in imx_uart_set_mctrl()
1592 	if (port->rs485.flags & SER_RS485_ENABLED &&  in imx_uart_shutdown()
1593 	    port->rs485.flags & SER_RS485_RTS_ON_SEND &&  in imx_uart_shutdown()
1687 	if (port->rs485.flags & SER_RS485_ENABLED) {  in imx_uart_set_termios()
1689 		 * RTS is mandatory for rs485 operation, so keep  in imx_uart_set_termios()
1693 		if (port->rs485.flags & SER_RS485_RTS_AFTER_SEND)  in imx_uart_set_termios()
2217 static const struct serial_rs485 imx_no_rs485 = {};	/* No RS485 if no RTS */
2298 	/* RTS is required to control the RS485 transmitter */  in imx_uart_probe()
2339 	if (sport->port.rs485.flags & SER_RS485_ENABLED &&  in imx_uart_probe()
2341 		dev_err(&pdev->dev, "no RTS control, disabling rs485\n");  in imx_uart_probe()
2348 	if (sport->port.rs485.flags & SER_RS485_ENABLED &&  in imx_uart_probe()
2350 	    (!(sport->port.rs485.flags & SER_RS485_RTS_ON_SEND) &&  in imx_uart_probe()
2351 	     !(sport->port.rs485.flags & SER_RS485_RX_DURING_TX)))  in imx_uart_probe()
2366 	 * In case RS485 is enabled without GPIO RTS control, the UART IP  in imx_uart_probe()
2375 	if (sport->port.rs485.flags & SER_RS485_ENABLED &&  in imx_uart_probe()