fsldma: Add DMA_SLAVE support

Use the DMA_SLAVE capability of the DMAEngine API to copy/from a
scatterlist into an arbitrary list of hardware address/length pairs.

This allows a single DMA transaction to copy data from several different
devices into a scatterlist at the same time.

This also adds support to enable some controller-specific features such as
external start and external pause for a DMA transaction.

[[email protected]: rebased on tx_list movement]
Signed-off-by: Ira W. Snyder <[email protected]>
Acked-by: Li Yang <[email protected]>
Acked-by: Kumar Gala <[email protected]>
Signed-off-by: Dan Williams <[email protected]>

0 files changed, 0 insertions, 0 deletions