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![Dave Jiang](https://secure.gravatar.com/avatar/c06cc8ef8fd917239107891bc32ec5bd.jpg?s=96&d=mm)
Dave Jiang committed 96862189827
dmaengine: documentation to the new callback mechanism Adding documentation in dmaengine/provider.txt on the usage of callback with result, callback_result, function pointer to retrieve transanction result from a DMA submission. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>