redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

dmaengine: at_hdmac: use dma_address to program DMA hardware 

In atc_prep_slave_sg() function we use dma_address field of scatterlist with
sg_dma_address() macro instead of sg_phys(). DMA address is already computed
by dma_map_sg() or another mapping function in calling driver.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
hifive-unleashed-5.1
Nicolas Ferre 2010-12-15 18:50:16 +01:00 committed by Dan Williams
parent 2cdf2455a6
commit 0f70e8cea3
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/dma/at_hdmac.c
View File

@ -670,7 +670,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
if (!desc)
goto err_desc_get;
mem = sg_phys(sg);
mem = sg_dma_address(sg);
len = sg_dma_len(sg);
mem_width = 2;
if (unlikely(mem & 3 || len & 3))
@ -712,7 +712,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
if (!desc)
goto err_desc_get;
mem = sg_phys(sg);
mem = sg_dma_address(sg);
len = sg_dma_len(sg);
mem_width = 2;
if (unlikely(mem & 3 || len & 3))