924 	struct dma_async_tx_descriptor *desc;  in atmel_tx_dma()  local
980 		desc = dmaengine_prep_slave_sg(chan,  in atmel_tx_dma()
986 		if (!desc) {  in atmel_tx_dma()
993 		atmel_port->desc_tx = desc;  in atmel_tx_dma()
994 		desc->callback = atmel_complete_tx_dma;  in atmel_tx_dma()
995 		desc->callback_param = atmel_port;  in atmel_tx_dma()
996 		atmel_port->cookie_tx = dmaengine_submit(desc);  in atmel_tx_dma()
1187 	struct dma_async_tx_descriptor *desc;  in atmel_prepare_rx_dma()  local
1244 	desc = dmaengine_prep_dma_cyclic(atmel_port->chan_rx,  in atmel_prepare_rx_dma()
1250 	if (!desc) {  in atmel_prepare_rx_dma()
1254 	desc->callback = atmel_complete_rx_dma;  in atmel_prepare_rx_dma()
1255 	desc->callback_param = port;  in atmel_prepare_rx_dma()
1256 	atmel_port->desc_rx = desc;  in atmel_prepare_rx_dma()
1257 	atmel_port->cookie_rx = dmaengine_submit(desc);  in atmel_prepare_rx_dma()