178 	if (dma && dma->tx_chan && ourport->tx_in_progress == S3C24XX_TX_DMA) {  in s3c24xx_serial_stop_tx()
179 		dmaengine_pause(dma->tx_chan);  in s3c24xx_serial_stop_tx()
180 		dmaengine_tx_status(dma->tx_chan, dma->tx_cookie, &state);  in s3c24xx_serial_stop_tx()
181 		dmaengine_terminate_all(dma->tx_chan);  in s3c24xx_serial_stop_tx()
212 	dmaengine_tx_status(dma->tx_chan, dma->tx_cookie, &state);  in s3c24xx_serial_tx_dma_complete()
304 	dma->tx_desc = dmaengine_prep_slave_single(dma->tx_chan,  in s3c24xx_serial_start_tx_dma()
318 	dma_async_issue_pending(dma->tx_chan);  in s3c24xx_serial_start_tx_dma()
336 	if (!ourport->dma || !ourport->dma->tx_chan ||  in s3c24xx_serial_start_next_tx()
354 		if (!ourport->dma || !ourport->dma->tx_chan)  in s3c24xx_serial_start_tx()
358 	if (ourport->dma && ourport->dma->tx_chan) {  in s3c24xx_serial_start_tx()
434 		dmaengine_pause(dma->tx_chan);  in s3c24xx_serial_stop_rx()
738 	if (ourport->dma && ourport->dma->tx_chan &&  in s3c24xx_serial_tx_chars()
908 	dma->tx_chan = dma_request_slave_channel_compat(mask, dma->fn,  in s3c24xx_serial_request_dma()
910 	if (!dma->tx_chan) {  in s3c24xx_serial_request_dma()
915 	dmaengine_slave_config(dma->tx_chan, &dma->tx_conf);  in s3c24xx_serial_request_dma()
924 		dma_release_channel(dma->tx_chan);  in s3c24xx_serial_request_dma()
934 	dma->tx_addr = dma_map_single(dma->tx_chan->device->dev,  in s3c24xx_serial_request_dma()
956 	if (dma->tx_chan) {  in s3c24xx_serial_release_dma()
957 		dmaengine_terminate_all(dma->tx_chan);  in s3c24xx_serial_release_dma()
958 		dma_unmap_single(dma->tx_chan->device->dev, dma->tx_addr,  in s3c24xx_serial_release_dma()
960 		dma_release_channel(dma->tx_chan);  in s3c24xx_serial_release_dma()
961 		dma->tx_chan = NULL;  in s3c24xx_serial_release_dma()