tree cd6577e5901cac8d1b0724b36182a6f29baf139b
parent 60884ddecdc2f45fd2862b7e95c9ad858584f82b
author Vinod Koul <vinod.koul@intel.com> 1438744325 +0530
committer Vinod Koul <vinod.koul@intel.com> 1439803322 +0530

dmaengine: Add DMA_CTRL_REUSE

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>