dmaengine: sprd: Fix the right place to configure 2-stage transfer

Move the 2-stage configuration before configuring the link-list mode,
since we will use some 2-stage configuration to fill the link-list
configuration.

Signed-off-by: Eric Long <eric.long@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index a01c232466323eaa951b87a32aa8f7d7c5d4265f..01abed5cde49eeeedf93f0f3530655ac98284fd1 100644 (file)
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -911,6 +911,12 @@ sprd_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
                schan->linklist.virt_addr = 0;
        }
 
+       /* Set channel mode and trigger mode for 2-stage transfer */
+       schan->chn_mode =
+               (flags >> SPRD_DMA_CHN_MODE_SHIFT) & SPRD_DMA_CHN_MODE_MASK;
+       schan->trg_mode =
+               (flags >> SPRD_DMA_TRG_MODE_SHIFT) & SPRD_DMA_TRG_MODE_MASK;
+
        sdesc = kzalloc(sizeof(*sdesc), GFP_NOWAIT);
        if (!sdesc)
                return NULL;
@@ -944,12 +950,6 @@ sprd_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
                }
        }
 
-       /* Set channel mode and trigger mode for 2-stage transfer */
-       schan->chn_mode =
-               (flags >> SPRD_DMA_CHN_MODE_SHIFT) & SPRD_DMA_CHN_MODE_MASK;
-       schan->trg_mode =
-               (flags >> SPRD_DMA_TRG_MODE_SHIFT) & SPRD_DMA_TRG_MODE_MASK;
-
        ret = sprd_dma_fill_desc(chan, &sdesc->chn_hw, 0, 0, src, dst, len,
                                 dir, flags, slave_cfg);
        if (ret) {