145 	struct dma_chan *dma_chan[SPRD_SPI_MAX];  member
488 static int sprd_spi_dma_submit(struct dma_chan *dma_chan,  in sprd_spi_dma_submit()  argument
498 	ret = dmaengine_slave_config(dma_chan, c);  in sprd_spi_dma_submit()
504 	desc = dmaengine_prep_slave_sg(dma_chan, sg->sgl, sg->nents, dir, flags);  in sprd_spi_dma_submit()
512 	dma_async_issue_pending(dma_chan);  in sprd_spi_dma_submit()
519 	struct dma_chan *dma_chan = ss->dma.dma_chan[SPRD_SPI_RX];  in sprd_spi_dma_rx_config()  local
528 	ret = sprd_spi_dma_submit(dma_chan, &config, &t->rx_sg, DMA_DEV_TO_MEM);  in sprd_spi_dma_rx_config()
537 	struct dma_chan *dma_chan = ss->dma.dma_chan[SPRD_SPI_TX];  in sprd_spi_dma_tx_config()  local
546 	ret = sprd_spi_dma_submit(dma_chan, &config, &t->tx_sg, DMA_MEM_TO_DEV);  in sprd_spi_dma_tx_config()
555 	ss->dma.dma_chan[SPRD_SPI_RX] = dma_request_chan(ss->dev, "rx_chn");  in sprd_spi_dma_request()
556 	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_RX])) {  in sprd_spi_dma_request()
557 		if (PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]) == -EPROBE_DEFER)  in sprd_spi_dma_request()
558 			return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]);  in sprd_spi_dma_request()
561 		return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_RX]);  in sprd_spi_dma_request()
564 	ss->dma.dma_chan[SPRD_SPI_TX]  = dma_request_chan(ss->dev, "tx_chn");  in sprd_spi_dma_request()
565 	if (IS_ERR_OR_NULL(ss->dma.dma_chan[SPRD_SPI_TX])) {  in sprd_spi_dma_request()
566 		if (PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]) == -EPROBE_DEFER)  in sprd_spi_dma_request()
567 			return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]);  in sprd_spi_dma_request()
570 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);  in sprd_spi_dma_request()
571 		return PTR_ERR(ss->dma.dma_chan[SPRD_SPI_TX]);  in sprd_spi_dma_request()
579 	if (ss->dma.dma_chan[SPRD_SPI_RX])  in sprd_spi_dma_release()
580 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_RX]);  in sprd_spi_dma_release()
582 	if (ss->dma.dma_chan[SPRD_SPI_TX])  in sprd_spi_dma_release()
583 		dma_release_channel(ss->dma.dma_chan[SPRD_SPI_TX]);  in sprd_spi_dma_release()