UARTFIFO_TXFE 644 drivers/tty/serial/fsl_lpuart.c temp | UARTFIFO_RXFE | UARTFIFO_TXFE); UARTFIFO_TXFE 1431 drivers/tty/serial/fsl_lpuart.c val |= UARTFIFO_TXFE | UARTFIFO_RXFE;