107 	struct dma_chan			*tx_chan;  member
310 	if (dma && dma->tx_chan && ourport->tx_in_progress == S3C24XX_TX_DMA) {  in s3c24xx_serial_stop_tx()
311 		dmaengine_pause(dma->tx_chan);  in s3c24xx_serial_stop_tx()
312 		dmaengine_tx_status(dma->tx_chan, dma->tx_cookie, &state);  in s3c24xx_serial_stop_tx()
313 		dmaengine_terminate_all(dma->tx_chan);  in s3c24xx_serial_stop_tx()
314 		dma_sync_single_for_cpu(dma->tx_chan->device->dev,  in s3c24xx_serial_stop_tx()
344 	dmaengine_tx_status(dma->tx_chan, dma->tx_cookie, &state);  in s3c24xx_serial_tx_dma_complete()
348 	dma_sync_single_for_cpu(dma->tx_chan->device->dev,  in s3c24xx_serial_tx_dma_complete()
453 	dma_sync_single_for_device(dma->tx_chan->device->dev,  in s3c24xx_serial_start_tx_dma()
457 	dma->tx_desc = dmaengine_prep_slave_single(dma->tx_chan,  in s3c24xx_serial_start_tx_dma()
471 	dma_async_issue_pending(dma->tx_chan);  in s3c24xx_serial_start_tx_dma()
489 	if (!ourport->dma || !ourport->dma->tx_chan ||  in s3c24xx_serial_start_next_tx()
507 		if (!ourport->dma || !ourport->dma->tx_chan)  in s3c24xx_serial_start_tx()
511 	if (ourport->dma && ourport->dma->tx_chan) {  in s3c24xx_serial_start_tx()
569 		dmaengine_pause(dma->tx_chan);  in s3c24xx_serial_stop_rx()
881 	if (ourport->dma && ourport->dma->tx_chan &&  in s3c24xx_serial_tx_chars()
1092 	dma->tx_chan = dma_request_chan(p->port.dev, "tx");  in s3c24xx_serial_request_dma()
1093 	if (IS_ERR(dma->tx_chan)) {  in s3c24xx_serial_request_dma()
1095 		ret = PTR_ERR(dma->tx_chan);  in s3c24xx_serial_request_dma()
1099 	ret = dma_get_slave_caps(dma->tx_chan, &dma_caps);  in s3c24xx_serial_request_dma()
1107 	dmaengine_slave_config(dma->tx_chan, &dma->tx_conf);  in s3c24xx_serial_request_dma()
1127 	dma->tx_addr = dma_map_single(dma->tx_chan->device->dev,  in s3c24xx_serial_request_dma()
1130 	if (dma_mapping_error(dma->tx_chan->device->dev, dma->tx_addr)) {  in s3c24xx_serial_request_dma()
1144 	dma_release_channel(dma->tx_chan);  in s3c24xx_serial_request_dma()
1166 	if (dma->tx_chan) {  in s3c24xx_serial_release_dma()
1167 		dmaengine_terminate_all(dma->tx_chan);  in s3c24xx_serial_release_dma()
1168 		dma_unmap_single(dma->tx_chan->device->dev, dma->tx_addr,  in s3c24xx_serial_release_dma()
1170 		dma_release_channel(dma->tx_chan);  in s3c24xx_serial_release_dma()
1171 		dma->tx_chan = NULL;  in s3c24xx_serial_release_dma()