This new enum removes usage of dma_data_direction for dma direction. The new
enum cleans tells the DMA direction and mode
This further paves way for merging the dmaengine _prep operations and also for
interleaved dma
Suggested-by: NJassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: NBarry Song <Baohua.Song@csr.com>
Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>