When clients asks for maxburst = 0 it is basically the same case as if they were asking for maxburst = 1 since in both case ASYNC need to be used and the eDMA is expected to write/read one word per DMA request. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx> --- drivers/dma/edma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index cd04eb7b182e..2742867fd1e6 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -285,6 +285,10 @@ static int edma_config_pset(struct dma_chan *chan, struct edmacc_param *pset, int absync; acnt = dev_width; + + /* src/dst_maxburst == 0 is the same case as src/dst_maxburst == 1 */ + if (!burst) + burst = 1; /* * If the maxburst is equal to the fifo width, use * A-synced transfers. This allows for large contiguous -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
