diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/ste_dma40.c | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 8c7cfea7c01..217b02d027e 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -1974,11 +1974,9 @@ _exit: static int d40_prep_sg_log(struct d40_chan *chan, struct d40_desc *desc, struct scatterlist *sg_src, struct scatterlist *sg_dst, - unsigned int sg_len, enum dma_data_direction direction, - dma_addr_t dev_addr) + unsigned int sg_len, dma_addr_t src_dev_addr, + dma_addr_t dst_dev_addr) { - dma_addr_t src_dev_addr = direction == DMA_FROM_DEVICE ? dev_addr : 0; - dma_addr_t dst_dev_addr = direction == DMA_TO_DEVICE ? dev_addr : 0; struct stedma40_chan_cfg *cfg = &chan->dma_cfg; struct stedma40_half_channel_info *src_info = &cfg->src_info; struct stedma40_half_channel_info *dst_info = &cfg->dst_info; @@ -2002,11 +2000,9 @@ d40_prep_sg_log(struct d40_chan *chan, struct d40_desc *desc, static int d40_prep_sg_phy(struct d40_chan *chan, struct d40_desc *desc, struct scatterlist *sg_src, struct scatterlist *sg_dst, - unsigned int sg_len, enum dma_data_direction direction, - dma_addr_t dev_addr) + unsigned int sg_len, dma_addr_t src_dev_addr, + dma_addr_t dst_dev_addr) { - dma_addr_t src_dev_addr = direction == DMA_FROM_DEVICE ? dev_addr : 0; - dma_addr_t dst_dev_addr = direction == DMA_TO_DEVICE ? dev_addr : 0; struct stedma40_chan_cfg *cfg = &chan->dma_cfg; struct stedma40_half_channel_info *src_info = &cfg->src_info; struct stedma40_half_channel_info *dst_info = &cfg->dst_info; @@ -2098,7 +2094,8 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src, enum dma_data_direction direction, unsigned long dma_flags) { struct d40_chan *chan = container_of(dchan, struct d40_chan, chan); - dma_addr_t dev_addr = 0; + dma_addr_t src_dev_addr = 0; + dma_addr_t dst_dev_addr = 0; struct d40_desc *desc; unsigned long flags; int ret; @@ -2114,15 +2111,21 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src, if (desc == NULL) goto err; - if (direction != DMA_NONE) - dev_addr = d40_get_dev_addr(chan, direction); + if (direction != DMA_NONE) { + dma_addr_t dev_addr = d40_get_dev_addr(chan, direction); + + if (direction == DMA_FROM_DEVICE) + src_dev_addr = dev_addr; + else if (direction == DMA_TO_DEVICE) + dst_dev_addr = dev_addr; + } if (chan_is_logical(chan)) ret = d40_prep_sg_log(chan, desc, sg_src, sg_dst, - sg_len, direction, dev_addr); + sg_len, src_dev_addr, dst_dev_addr); else ret = d40_prep_sg_phy(chan, desc, sg_src, sg_dst, - sg_len, direction, dev_addr); + sg_len, src_dev_addr, dst_dev_addr); if (ret) { chan_err(chan, "Failed to prepare %s sg job: %d\n", @@ -2728,6 +2731,8 @@ stedma40_cyclic_prep_sg(struct dma_chan *chan, unsigned long flags; void *mem; int err; + dma_addr_t src_dev_addr = 0; + dma_addr_t dst_dev_addr = 0; mem = kzalloc(sizeof(struct stedma40_cyclic_desc) + sizeof(struct d40_desc), GFP_ATOMIC); @@ -2765,12 +2770,17 @@ stedma40_cyclic_prep_sg(struct dma_chan *chan, dev_addr = d40_get_dev_addr(d40c, direction); + if (direction == DMA_FROM_DEVICE) + src_dev_addr = dev_addr; + else if (direction == DMA_TO_DEVICE) + dst_dev_addr = dev_addr; + if (chan_is_logical(d40c)) err = d40_prep_sg_log(d40c, d40d, sgl, sgl, - sg_len, direction, dev_addr); + sg_len, src_dev_addr, dst_dev_addr); else err = d40_prep_sg_phy(d40c, d40d, sgl, sgl, - sg_len, direction, dev_addr); + sg_len, src_dev_addr, dst_dev_addr); if (err) { chan_err(d40c,"Failed to prepare %s slave sg job: %d\n", |