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| author | Nicolas Ferre <nicolas.ferre@atmel.com> | 2010-12-13 13:48:41 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-12-14 00:39:29 -0800 |
| commit | 59a609d9b59be9452f168fe228befea53d5962ff (patch) | |
| tree | 6ac0fe91c963ceefea29cf9cea039c4374f6aa24 /drivers | |
| parent | f3c677b997757326e1f29d33060719a6a5091950 (diff) | |
| download | linux-3.10-59a609d9b59be9452f168fe228befea53d5962ff.tar.gz linux-3.10-59a609d9b59be9452f168fe228befea53d5962ff.tar.bz2 linux-3.10-59a609d9b59be9452f168fe228befea53d5962ff.zip | |
dmaengine: at_hdmac: fix buffer transfer size specification
Buffer transfer size is the number of transfers to be performed in
relation with the width of the _source_ interface.
So in the DMA_FROM_DEVICE case, it should be the register width that
should be taken into account.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/at_hdmac.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index a0f3e6a06e0..ea0ee81cff5 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -722,7 +722,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, desc->lli.daddr = mem; desc->lli.ctrla = ctrla | ATC_DST_WIDTH(mem_width) - | len >> mem_width; + | len >> reg_width; desc->lli.ctrlb = ctrlb; if (!first) { |