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| author | Rabin Vincent <rabin.vincent@stericsson.com> | 2011-01-25 11:18:25 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2011-01-31 07:27:19 +0100 |
| commit | e24b36bdf873b4a64545fd66da13877214d235cf (patch) | |
| tree | 0490a45fe1cae96aa9a6c092172dcbba07aa6aa9 /drivers/dma/ste_dma40_ll.c | |
| parent | dma40: move lli_load to main source file (diff) | |
| download | linux-e24b36bdf873b4a64545fd66da13877214d235cf.tar.xz linux-e24b36bdf873b4a64545fd66da13877214d235cf.zip | |
dma40: combine duplicated code in log_sg_to_dev
Acked-by: Per Forlin <per.forlin@stericsson.com>
Acked-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/ste_dma40_ll.c')
| -rw-r--r-- | drivers/dma/ste_dma40_ll.c | 52 |
1 files changed, 23 insertions, 29 deletions
diff --git a/drivers/dma/ste_dma40_ll.c b/drivers/dma/ste_dma40_ll.c index fd7525162596..fa6c3ab93fae 100644 --- a/drivers/dma/ste_dma40_ll.c +++ b/drivers/dma/ste_dma40_ll.c @@ -385,40 +385,34 @@ int d40_log_sg_to_dev(struct scatterlist *sg, struct d40_log_lli *lli_dst = lli->dst; for_each_sg(sg, current_sg, sg_len, i) { - total_size += sg_dma_len(current_sg); + dma_addr_t sg_addr = sg_dma_address(current_sg); + unsigned int len = sg_dma_len(current_sg); + dma_addr_t src; + dma_addr_t dst; + + total_size += len; if (direction == DMA_TO_DEVICE) { - lli_src = - d40_log_buf_to_lli(lli_src, - sg_dma_address(current_sg), - sg_dma_len(current_sg), - lcsp->lcsp1, src_data_width, - dst_data_width, - true); - lli_dst = - d40_log_buf_to_lli(lli_dst, - dev_addr, - sg_dma_len(current_sg), - lcsp->lcsp3, dst_data_width, - src_data_width, - false); + src = sg_addr; + dst = dev_addr; } else { - lli_dst = - d40_log_buf_to_lli(lli_dst, - sg_dma_address(current_sg), - sg_dma_len(current_sg), - lcsp->lcsp3, dst_data_width, - src_data_width, - true); - lli_src = - d40_log_buf_to_lli(lli_src, - dev_addr, - sg_dma_len(current_sg), - lcsp->lcsp1, src_data_width, - dst_data_width, - false); + src = dev_addr; + dst = sg_addr; } + + lli_src = d40_log_buf_to_lli(lli_src, src, len, + lcsp->lcsp1, + src_data_width, + dst_data_width, + src == sg_addr); + + lli_dst = d40_log_buf_to_lli(lli_dst, dst, len, + lcsp->lcsp3, + dst_data_width, + src_data_width, + dst == sg_addr); } + return total_size; } |