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| author | Javier Martin <javier.martin@vista-silicon.com> | 2012-03-22 14:54:14 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-03-26 08:01:32 +0200 |
| commit | f606ab897b6d7f35b57c7474424676e30457520b (patch) | |
| tree | 2a52df10191cbe331160230894be3542df08e416 /drivers/dma/mv_xor.c | |
| parent | dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages. (diff) | |
| download | linux-f606ab897b6d7f35b57c7474424676e30457520b.tar.xz linux-f606ab897b6d7f35b57c7474424676e30457520b.zip | |
dmaengine: i.MX: Add support for interleaved transfers.
i.MX2 and i.MX1 chips have the possibility to do
interleaved transfers with two constraints:
- Only one chunk can be used (i.e. only 2D transfers are allowed).
- Only 2 interleaved configurations can be applied at the same time
for all channels.
Since this patch adds a new resource 'slots_2d' which is shared
by all the DMA channels and to avoid disgustin locking BUGs, the
'lock' member has been moved to the global 'imxdma_engine' structure.
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/mv_xor.c')
0 files changed, 0 insertions, 0 deletions