dmaengine: Add DMA_CTRL_REUSE

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This adds new descriptor flag for reusing a descriptor by submitting
multiple times by a client, for example video buffer.
Add helper APIs for this as well

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Acked-by:Robert Jarzmik <robert.jarzmik@free.fr>

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Vinod Koul 2015-08-05 08:42:05 +05:30

parent 60884ddecd

commit 272420214d

1 changed files with 40 additions and 0 deletions

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include/linux/dmaengine.h

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