| Message ID | 1437755067-28622-5-git-send-email-alex.smith@imgtec.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
diff --git a/drivers/dma/dma-jz4780.c b/drivers/dma/dma-jz4780.c index 90b66186e8bc..05f2d468f396 100644 --- a/drivers/dma/dma-jz4780.c +++ b/drivers/dma/dma-jz4780.c @@ -726,9 +726,14 @@ static struct dma_chan *jz4780_of_dma_xlate(struct of_phandle_args *dma_spec, data.channel); return NULL; } - } - return dma_request_channel(mask, jz4780_dma_filter_fn, &data); + jzdma->chan[data.channel].transfer_type = data.transfer_type; + + return dma_get_slave_channel( + &jzdma->chan[data.channel].vchan.chan); + } else { + return dma_request_channel(mask, jz4780_dma_filter_fn, &data); + } } static int jz4780_dma_probe(struct platform_device *pdev)
When the DT requests a specific channel to use it is not necesssary to scan through all DMA channels in the system. Just return the requested channel using dma_get_slave_channel(). Signed-off-by: Alex Smith <alex.smith@imgtec.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com> Cc: dmaengine@vger.kernel.org --- Changes in v3: - None Changes in v2: - None --- drivers/dma/dma-jz4780.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)