871 	struct tty_port *tport = &port->state->port;  in sci_transmit_chars()  local
881 		if (kfifo_is_empty(&tport->xmit_fifo))  in sci_transmit_chars()
897 		} else if (stopped || !kfifo_get(&tport->xmit_fifo, &c)) {  in sci_transmit_chars()
899 				   kfifo_is_empty(&tport->xmit_fifo)) {  in sci_transmit_chars()
916 	if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS)  in sci_transmit_chars()
918 	if (kfifo_is_empty(&tport->xmit_fifo)) {  in sci_transmit_chars()
932 	struct tty_port *tport = &port->state->port;  in sci_receive_chars()  local
943 		count = tty_buffer_request_room(tport, sci_rxfill(port));  in sci_receive_chars()
954 				tty_insert_flip_char(tport, c, TTY_NORMAL);  in sci_receive_chars()
982 				tty_insert_flip_char(tport, c, flag);  in sci_receive_chars()
995 		tty_flip_buffer_push(tport);  in sci_receive_chars()
1008 	struct tty_port *tport = &port->state->port;  in sci_handle_errors()  local
1016 		if (tty_insert_flip_char(tport, 0, TTY_OVERRUN))  in sci_handle_errors()
1024 		if (tty_insert_flip_char(tport, 0, TTY_FRAME))  in sci_handle_errors()
1032 		if (tty_insert_flip_char(tport, 0, TTY_PARITY))  in sci_handle_errors()
1037 		tty_flip_buffer_push(tport);  in sci_handle_errors()
1044 	struct tty_port *tport = &port->state->port;  in sci_handle_fifo_overrun()  local
1061 		tty_insert_flip_char(tport, 0, TTY_OVERRUN);  in sci_handle_fifo_overrun()
1062 		tty_flip_buffer_push(tport);  in sci_handle_fifo_overrun()
1073 	struct tty_port *tport = &port->state->port;  in sci_handle_breaks()  local
1082 		if (tty_insert_flip_char(tport, 0, TTY_BREAK))  in sci_handle_breaks()
1087 		tty_flip_buffer_push(tport);  in sci_handle_breaks()
1254 	struct tty_port *tport = &port->state->port;  in sci_dma_tx_complete()  local
1263 	if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS)  in sci_dma_tx_complete()
1268 	if (!kfifo_is_empty(&tport->xmit_fifo)) {  in sci_dma_tx_complete()
1292 	struct tty_port *tport = &port->state->port;  in sci_dma_rx_push()  local
1295 	copied = tty_insert_flip_string(tport, buf, count);  in sci_dma_rx_push()
1488 	struct tty_port *tport = &port->state->port;  in sci_dma_tx_work_fn()  local
1501 	s->tx_dma_len = kfifo_out_linear(&tport->xmit_fifo, &tail,  in sci_dma_tx_work_fn()
1533 		__func__, tport->xmit_buf, tail, s->cookie_tx);  in sci_dma_tx_work_fn()
1648 	struct tty_port *tport = &port->state->port;  in sci_request_dma()  local
1677 						tport->xmit_buf,  in sci_request_dma()
1686 				tport->xmit_buf, &s->tx_dma_addr);  in sci_request_dma()