433 	if (dma && dma->rx_chan) {  in s3c24xx_serial_stop_rx()
435 		dma_status = dmaengine_tx_status(dma->rx_chan,  in s3c24xx_serial_stop_rx()
440 			dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_stop_rx()
489 	dmaengine_tx_status(dma->rx_chan,  dma->rx_cookie, &state);  in s3c24xx_serial_rx_dma_complete()
515 	dma->rx_desc = dmaengine_prep_slave_single(dma->rx_chan,  in s3c64xx_start_rx_dma()
528 	dma_async_issue_pending(dma->rx_chan);  in s3c64xx_start_rx_dma()
601 		dmaengine_pause(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
602 		dmaengine_tx_status(dma->rx_chan, dma->rx_cookie, &state);  in s3c24xx_serial_rx_chars_dma()
603 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
721 	if (ourport->dma && ourport->dma->rx_chan)  in s3c24xx_serial_rx_chars()
901 	dma->rx_chan = dma_request_slave_channel_compat(mask, dma->fn,  in s3c24xx_serial_request_dma()
903 	if (!dma->rx_chan)  in s3c24xx_serial_request_dma()
906 	dmaengine_slave_config(dma->rx_chan, &dma->rx_conf);  in s3c24xx_serial_request_dma()
911 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_request_dma()
923 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_request_dma()
928 	dma->rx_addr = dma_map_single(dma->rx_chan->device->dev, dma->rx_buf,  in s3c24xx_serial_request_dma()
947 	if (dma->rx_chan) {  in s3c24xx_serial_release_dma()
948 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_release_dma()
949 		dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,  in s3c24xx_serial_release_dma()
952 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_release_dma()
953 		dma->rx_chan = NULL;  in s3c24xx_serial_release_dma()