Commit 72919f34 authored by Mark Brown's avatar Mark Brown
Browse files

spi: tegra: slink: do prepare dma transfer with DMA_CTRL_ACK flag 

This reverts commit faa98f7e which was
applied in error due to discussion ending up in the wrong thread.
parent 997230d0

drivers/spi/spi-tegra20-slink.c

+2 −2
Original line number Diff line number Diff line
@@ -467,7 +467,7 @@ static int tegra_slink_start_tx_dma(struct tegra_slink_data *tspi, int len) 
	INIT_COMPLETION(tspi->tx_dma_complete);

	tspi->tx_dma_desc = dmaengine_prep_slave_single(tspi->tx_dma_chan,

				tspi->tx_dma_phys, len, DMA_MEM_TO_DEV,

				DMA_PREP_INTERRUPT);

				DMA_PREP_INTERRUPT |  DMA_CTRL_ACK);

	if (!tspi->tx_dma_desc) {

		dev_err(tspi->dev, "Not able to get desc for Tx\n");

		return -EIO;
@@ -486,7 +486,7 @@ static int tegra_slink_start_rx_dma(struct tegra_slink_data *tspi, int len) 
	INIT_COMPLETION(tspi->rx_dma_complete);

	tspi->rx_dma_desc = dmaengine_prep_slave_single(tspi->rx_dma_chan,

				tspi->rx_dma_phys, len, DMA_DEV_TO_MEM,

				DMA_PREP_INTERRUPT);

				DMA_PREP_INTERRUPT |  DMA_CTRL_ACK);

	if (!tspi->rx_dma_desc) {

		dev_err(tspi->dev, "Not able to get desc for Rx\n");

		return -EIO;