diff options
| -rw-r--r-- | drivers/misc/carma/carma-fpga.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c index 8835eabb3b87..6b43f8c7b3be 100644 --- a/drivers/misc/carma/carma-fpga.c +++ b/drivers/misc/carma/carma-fpga.c @@ -631,6 +631,8 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf) struct dma_async_tx_descriptor *tx; dma_cookie_t cookie; dma_addr_t dst, src; + unsigned long dma_flags = DMA_COMPL_SKIP_DEST_UNMAP | + DMA_COMPL_SKIP_SRC_UNMAP; dst_sg = buf->vb.sglist; dst_nents = buf->vb.sglen; @@ -666,7 +668,7 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf) src = SYS_FPGA_BLOCK; tx = chan->device->device_prep_dma_memcpy(chan, dst, src, REG_BLOCK_SIZE, - 0); + dma_flags); if (!tx) { dev_err(priv->dev, "unable to prep SYS-FPGA DMA\n"); return -ENOMEM; |