406 	if (dma && dma->rx_chan) {  in s3c24xx_serial_stop_rx()
408 		dma_status = dmaengine_tx_status(dma->rx_chan,  in s3c24xx_serial_stop_rx()
413 			dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_stop_rx()
462 	dmaengine_tx_status(dma->rx_chan,  dma->rx_cookie, &state);  in s3c24xx_serial_rx_dma_complete()
488 	dma->rx_desc = dmaengine_prep_slave_single(dma->rx_chan,  in s3c64xx_start_rx_dma()
501 	dma_async_issue_pending(dma->rx_chan);  in s3c64xx_start_rx_dma()
576 		dmaengine_pause(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
577 		dmaengine_tx_status(dma->rx_chan, dma->rx_cookie, &state);  in s3c24xx_serial_rx_chars_dma()
578 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
696 	if (ourport->dma && ourport->dma->rx_chan)  in s3c24xx_serial_rx_chars()
876 	dma->rx_chan = dma_request_slave_channel_compat(mask, dma->fn,  in s3c24xx_serial_request_dma()
878 	if (!dma->rx_chan)  in s3c24xx_serial_request_dma()
881 	dmaengine_slave_config(dma->rx_chan, &dma->rx_conf);  in s3c24xx_serial_request_dma()
886 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_request_dma()
898 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_request_dma()
903 	dma->rx_addr = dma_map_single(dma->rx_chan->device->dev, dma->rx_buf,  in s3c24xx_serial_request_dma()
922 	if (dma->rx_chan) {  in s3c24xx_serial_release_dma()
923 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_release_dma()
924 		dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,  in s3c24xx_serial_release_dma()
927 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_release_dma()
928 		dma->rx_chan = NULL;  in s3c24xx_serial_release_dma()