92 	struct dma_chan			*rx_chan;  member
522 	if (dma && dma->rx_chan) {  in s3c24xx_serial_stop_rx()
524 		dma_status = dmaengine_tx_status(dma->rx_chan,  in s3c24xx_serial_stop_rx()
529 			dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_stop_rx()
578 	dmaengine_tx_status(dma->rx_chan,  dma->rx_cookie, &state);  in s3c24xx_serial_rx_dma_complete()
604 	dma->rx_desc = dmaengine_prep_slave_single(dma->rx_chan,  in s3c64xx_start_rx_dma()
617 	dma_async_issue_pending(dma->rx_chan);  in s3c64xx_start_rx_dma()
692 		dmaengine_pause(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
693 		dmaengine_tx_status(dma->rx_chan, dma->rx_cookie, &state);  in s3c24xx_serial_rx_chars_dma()
694 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_rx_chars_dma()
820 	if (ourport->dma && ourport->dma->rx_chan)  in s3c24xx_serial_rx_chars()
992 	dma->rx_chan = dma_request_chan(p->port.dev, "rx");  in s3c24xx_serial_request_dma()
994 	if (IS_ERR(dma->rx_chan)) {  in s3c24xx_serial_request_dma()
996 		ret = PTR_ERR(dma->rx_chan);  in s3c24xx_serial_request_dma()
1000 	ret = dma_get_slave_caps(dma->rx_chan, &dma_caps);  in s3c24xx_serial_request_dma()
1008 	dmaengine_slave_config(dma->rx_chan, &dma->rx_conf);  in s3c24xx_serial_request_dma()
1063 	dma_release_channel(dma->rx_chan);  in s3c24xx_serial_request_dma()
1074 	if (dma->rx_chan) {  in s3c24xx_serial_release_dma()
1075 		dmaengine_terminate_all(dma->rx_chan);  in s3c24xx_serial_release_dma()
1079 		dma_release_channel(dma->rx_chan);  in s3c24xx_serial_release_dma()
1080 		dma->rx_chan = NULL;  in s3c24xx_serial_release_dma()