106 	struct dma_chan			*rx_chan;  member
526 	dma_sync_single_for_cpu(dma->rx_chan->device->dev, dma->rx_addr,  in s3c24xx_uart_copy_rx_to_tty()
568 	if (dma && dma->rx_chan) {  in s3c24xx_serial_stop_rx()
570 		dma_status = dmaengine_tx_status(dma->rx_chan,  in s3c24xx_serial_stop_rx()
575 			dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_stop_rx()
624 	dmaengine_tx_status(dma->rx_chan,  dma->rx_cookie, &state);  in s3c24xx_serial_rx_dma_complete()
647 	dma_sync_single_for_device(dma->rx_chan->device->dev, dma->rx_addr,  in s3c64xx_start_rx_dma()
650 	dma->rx_desc = dmaengine_prep_slave_single(dma->rx_chan,  in s3c64xx_start_rx_dma()
663 	dma_async_issue_pending(dma->rx_chan);  in s3c64xx_start_rx_dma()
741 		dmaengine_pause(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
742 		dmaengine_tx_status(dma->rx_chan, dma->rx_cookie, &state);  in s3c24xx_serial_rx_chars_dma()
743 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
868 	if (ourport->dma && ourport->dma->rx_chan)  in s3c24xx_serial_rx_irq()
1074 	dma->rx_chan = dma_request_chan(p->port.dev, "rx");  in s3c24xx_serial_request_dma()
1076 	if (IS_ERR(dma->rx_chan)) {  in s3c24xx_serial_request_dma()
1078 		ret = PTR_ERR(dma->rx_chan);  in s3c24xx_serial_request_dma()
1082 	ret = dma_get_slave_caps(dma->rx_chan, &dma_caps);  in s3c24xx_serial_request_dma()
1090 	dmaengine_slave_config(dma->rx_chan, &dma->rx_conf);  in s3c24xx_serial_request_dma()
1118 	dma->rx_addr = dma_map_single(dma->rx_chan->device->dev, dma->rx_buf,  in s3c24xx_serial_request_dma()
1120 	if (dma_mapping_error(dma->rx_chan->device->dev, dma->rx_addr)) {  in s3c24xx_serial_request_dma()
1139 	dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,  in s3c24xx_serial_request_dma()
1146 	dma_release_channel(dma->rx_chan);  in s3c24xx_serial_request_dma()
1157 	if (dma->rx_chan) {  in s3c24xx_serial_release_dma()
1158 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_release_dma()
1159 		dma_unmap_single(dma->rx_chan->device->dev, dma->rx_addr,  in s3c24xx_serial_release_dma()
1162 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_release_dma()
1163 		dma->rx_chan = NULL;  in s3c24xx_serial_release_dma()