drivers/dma/TODO

   1 TODO for slave dma
   2
   3 1. Move remaining drivers to use new slave interface
   4 2. Remove old slave pointer machansim
   5 3. Make issue_pending to start the transaction in below drivers
   6         - mpc512x_dma
   7         - imx-dma
   8         - imx-sdma
   9         - mxs-dma.c
  10         - intel_mid_dma
  11 4. Check other subsystems for dma drivers and merge/move to dmaengine
  12 5. Remove dma_slave_config's dma direction.