[PATCH v1] dmaengine: Add support for audio interleaved transfer

[Sugar Zhang]

This patch add support for interleaved transfer which used
for interleaved audio or 2d video data transfer.

for audio situation, we add 'nump' for number of period frames.

Signed-off-by: Sugar Zhang <sugar.zhang at rock-chips.com>
---

 include/linux/dmaengine.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 752dbde..5263cde 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -144,6 +144,7 @@ struct data_chunk {
  *		Otherwise, destination is filled contiguously (icg ignored).
  *		Ignored if dst_inc is false.
  * @numf: Number of frames in this template.
+ * @nump: Number of period frames in this template.
  * @frame_size: Number of chunks in a frame i.e, size of sgl[].
  * @sgl: Array of {chunk,icg} pairs that make up a frame.
  */
@@ -156,6 +157,7 @@ struct dma_interleaved_template {
 	bool src_sgl;
 	bool dst_sgl;
 	size_t numf;
+	size_t nump;
 	size_t frame_size;
 	struct data_chunk sgl[];
 };
-- 
2.7.4