764 		if (s->chan_tx)  in sci_start_tx()
772 	if (s->chan_tx && !kfifo_is_empty(&port->state->port.xmit_fifo) &&  in sci_start_tx()
783 	if (!s->chan_tx || s->regtype == SCIx_RZ_SCIFA_REGTYPE ||  in sci_start_tx()
816 	if (s->chan_tx &&  in sci_stop_tx()
818 		dmaengine_terminate_async(s->chan_tx);  in sci_stop_tx()
1590 	s->chan_tx_saved = s->chan_tx = NULL;  in sci_dma_tx_release()
1645 	struct dma_chan *chan = s->chan_tx;  in sci_dma_tx_work_fn()
1699 	s->chan_tx = NULL;  in sci_dma_tx_work_fn()
1848 			s->chan_tx_saved = s->chan_tx = chan;  in sci_request_dma()
1911 	if (s->chan_tx) {  in sci_flush_buffer()
1912 		dmaengine_terminate_async(s->chan_tx);  in sci_flush_buffer()
1922 	if (!s->chan_tx || s->cookie_tx <= 0)  in sci_dma_check_tx_occurred()
1925 	status = dmaengine_tx_status(s->chan_tx, s->cookie_tx, &state);  in sci_dma_check_tx_occurred()
2085 	if (!s->chan_tx)  in sci_er_interrupt()
2109 	    !s->chan_tx)  in sci_mpxed_interrupt()