125 	struct sprd_uart_dma tx_dma;  member
213 	dmaengine_pause(sp->tx_dma.chn);  in sprd_stop_tx_dma()
215 	dmaengine_tx_status(sp->tx_dma.chn, sp->tx_dma.cookie, &state);  in sprd_stop_tx_dma()
217 		trans_len = state.residue - sp->tx_dma.phys_addr;  in sprd_stop_tx_dma()
220 		dma_unmap_single(port->dev, sp->tx_dma.phys_addr,  in sprd_stop_tx_dma()
221 				 sp->tx_dma.trans_len, DMA_TO_DEVICE);  in sprd_stop_tx_dma()
224 	dmaengine_terminate_all(sp->tx_dma.chn);  in sprd_stop_tx_dma()
225 	sp->tx_dma.trans_len = 0;  in sprd_stop_tx_dma()
234 	sp->tx_dma.trans_len =  in sprd_tx_buf_remap()
237 	sp->tx_dma.phys_addr = dma_map_single(port->dev,  in sprd_tx_buf_remap()
239 					      sp->tx_dma.trans_len,  in sprd_tx_buf_remap()
241 	return dma_mapping_error(port->dev, sp->tx_dma.phys_addr);  in sprd_tx_buf_remap()
253 	dma_unmap_single(port->dev, sp->tx_dma.phys_addr,  in sprd_complete_tx_dma()
254 			 sp->tx_dma.trans_len, DMA_TO_DEVICE);  in sprd_complete_tx_dma()
256 	xmit->tail = (xmit->tail + sp->tx_dma.trans_len) & (UART_XMIT_SIZE - 1);  in sprd_complete_tx_dma()
257 	port->icount.tx += sp->tx_dma.trans_len;  in sprd_complete_tx_dma()
264 		sp->tx_dma.trans_len = 0;  in sprd_complete_tx_dma()
303 	u32 burst = sp->tx_dma.trans_len > SPRD_TX_FIFO_FULL ?  in sprd_tx_dma_config()
304 		SPRD_TX_FIFO_FULL : sp->tx_dma.trans_len;  in sprd_tx_dma_config()
313 	ret = dmaengine_slave_config(sp->tx_dma.chn, &cfg);  in sprd_tx_dma_config()
317 	return sprd_uart_dma_submit(port, &sp->tx_dma, sp->tx_dma.trans_len,  in sprd_tx_dma_config()
339 	if (sp->tx_dma.trans_len)  in sprd_start_tx_dma()
343 		sp->tx_dma.trans_len = 0;  in sprd_start_tx_dma()
488 	if (sp->tx_dma.enable)  in sprd_release_dma()
489 		dma_release_channel(sp->tx_dma.chn);  in sprd_release_dma()
491 	sp->tx_dma.enable = false;  in sprd_release_dma()
500 	sp->tx_dma.enable = true;  in sprd_request_dma()
503 	sp->tx_dma.chn = dma_request_chan(port->dev, "tx");  in sprd_request_dma()
504 	if (IS_ERR(sp->tx_dma.chn)) {  in sprd_request_dma()
506 			PTR_ERR(sp->tx_dma.chn));  in sprd_request_dma()
507 		sp->tx_dma.enable = false;  in sprd_request_dma()
524 	if (sp->tx_dma.enable) {  in sprd_stop_tx()
545 	if (sp->tx_dma.enable) {  in sprd_start_tx()
699 	if (!(sp->rx_dma.enable || sp->tx_dma.enable))  in sprd_uart_dma_startup()