144 	struct dma_chan *dma_chan[SPRD_SPI_MAX];  member
487 static int sprd_spi_dma_submit(struct dma_chan *dma_chan,  in sprd_spi_dma_submit()  argument
497 	ret = dmaengine_slave_config(dma_chan, c);  in sprd_spi_dma_submit()
503 	desc = dmaengine_prep_slave_sg(dma_chan, sg->sgl, sg->nents, dir, flags);  in sprd_spi_dma_submit()
511 	dma_async_issue_pending(dma_chan);  in sprd_spi_dma_submit()
518 	struct dma_chan *dma_chan = ss->dma.dma_chan[SPRD_SPI_RX];  in sprd_spi_dma_rx_config()  local
527 	ret = sprd_spi_dma_submit(dma_chan, &config, &t->rx_sg, DMA_DEV_TO_MEM);  in sprd_spi_dma_rx_config()
536 	struct dma_chan *dma_chan = ss->dma.dma_chan[SPRD_SPI_TX];  in sprd_spi_dma_tx_config()  local
545 	ret = sprd_spi_dma_submit(dma_chan, &config, &t->tx_sg, DMA_MEM_TO_DEV);  in sprd_spi_dma_tx_config()
554 	ss->dma.dma_chan[SPRD_SPI_RX] = dma_request_chan(ss->dev, "rx_chn");  in sprd_spi_dma_request()
555 	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_RX]))  in sprd_spi_dma_request()
556 		return dev_err_probe(ss->dev, PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]),  in sprd_spi_dma_request()
559 	ss->dma.dma_chan[SPRD_SPI_TX]  = dma_request_chan(ss->dev, "tx_chn");  in sprd_spi_dma_request()
560 	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_TX])) {  in sprd_spi_dma_request()
561 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);  in sprd_spi_dma_request()
562 		return dev_err_probe(ss->dev, PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]),  in sprd_spi_dma_request()
571 	if (ss->dma.dma_chan[SPRD_SPI_RX])  in sprd_spi_dma_release()
572 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);  in sprd_spi_dma_release()
574 	if (ss->dma.dma_chan[SPRD_SPI_TX])  in sprd_spi_dma_release()
575 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_TX]);  in sprd_spi_dma_release()