diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/sprd-dma.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c index baac476c8622..525dc7338fe3 100644 --- a/drivers/dma/sprd-dma.c +++ b/drivers/dma/sprd-dma.c @@ -908,6 +908,7 @@ sprd_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, struct sprd_dma_chn *schan = to_sprd_dma_chan(chan); struct dma_slave_config *slave_cfg = &schan->slave_cfg; dma_addr_t src = 0, dst = 0; + dma_addr_t start_src = 0, start_dst = 0; struct sprd_dma_desc *sdesc; struct scatterlist *sg; u32 len = 0; @@ -954,6 +955,11 @@ sprd_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, dst = sg_dma_address(sg); } + if (!i) { + start_src = src; + start_dst = dst; + } + /* * The link-list mode needs at least 2 link-list * configurations. If there is only one sg, it doesn't @@ -970,8 +976,8 @@ sprd_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, } } - ret = sprd_dma_fill_desc(chan, &sdesc->chn_hw, 0, 0, src, dst, len, - dir, flags, slave_cfg); + ret = sprd_dma_fill_desc(chan, &sdesc->chn_hw, 0, 0, start_src, + start_dst, len, dir, flags, slave_cfg); if (ret) { kfree(sdesc); return NULL; |