Though intel-mid-dma does not follow a new DMA workflow let's prepare SPI DW driver for that.
Signed-off-by: Andy Shevchenko <[email protected]> --- drivers/spi/spi-dw-mid.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index 27150c7..a62413d 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -152,7 +152,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) &dws->tx_sgl, 1, DMA_MEM_TO_DEV, - DMA_PREP_INTERRUPT); + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); txdesc->callback = dw_spi_dma_done; txdesc->callback_param = dws; @@ -175,13 +175,17 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change) &dws->rx_sgl, 1, DMA_DEV_TO_MEM, - DMA_PREP_INTERRUPT); + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); rxdesc->callback = dw_spi_dma_done; rxdesc->callback_param = dws; /* rx must be started before tx due to spi instinct */ rxdesc->tx_submit(rxdesc); txdesc->tx_submit(txdesc); + + dma_async_issue_pending(rxchan); + dma_async_issue_pending(txchan); + return 0; } -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
