diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 9f1be9ce47e0..fe1fba335483 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1396,7 +1396,7 @@ static int lpuart32_config_rs485(struct uart_port *port,
 			struct lpuart_port, port);
 
 	unsigned long modem = lpuart32_read(&sport->port, UARTMODIR)
-				& ~(UARTMODEM_TXRTSPOL | UARTMODEM_TXRTSE);
+				& ~(UARTMODIR_TXRTSPOL | UARTMODIR_TXRTSE);
 	lpuart32_write(&sport->port, modem, UARTMODIR);
 
 	/* clear unsupported configurations */
@@ -1406,7 +1406,7 @@ static int lpuart32_config_rs485(struct uart_port *port,
 
 	if (rs485->flags & SER_RS485_ENABLED) {
 		/* Enable auto RS-485 RTS mode */
-		modem |= UARTMODEM_TXRTSE;
+		modem |= UARTMODIR_TXRTSE;
 
 		/*
 		 * RTS needs to be logic HIGH either during transfer _or_ after
@@ -1428,9 +1428,9 @@ static int lpuart32_config_rs485(struct uart_port *port,
 		 * Note: UART is assumed to be active high.
 		 */
 		if (rs485->flags & SER_RS485_RTS_ON_SEND)
-			modem |= UARTMODEM_TXRTSPOL;
+			modem |= UARTMODIR_TXRTSPOL;
 		else if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
-			modem &= ~UARTMODEM_TXRTSPOL;
+			modem &= ~UARTMODIR_TXRTSPOL;
 	}
 
 	/* Store the new configuration */