diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/xilinx/xilinx_dma.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index fd9f37bafab0..93435f7002ab 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -977,6 +977,15 @@ static int xilinx_dma_calc_copysize(struct xilinx_dma_chan *chan, copy = min_t(size_t, size - done, chan->xdev->max_buffer_len); + if ((copy + done < size) && + chan->xdev->common.copy_align) { + /* + * If this is not the last descriptor, make sure + * the next one will be properly aligned + */ + copy = rounddown(copy, + (1 << chan->xdev->common.copy_align)); + } return copy; } |