superrob1500
/
mirror-linux
mirror of https://github.com/torvalds/linux
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

dmaengine: Document cyclic transfer for dmaengine_prep_peripheral_dma_vec() 

Document that the DMA_PREP_REPEAT flag can be used with the
dmaengine_prep_peripheral_dma_vec() to mark a transfer as cyclic similar
to dmaengine_prep_dma_cyclic().

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20260303-axi-dac-cyclic-support-v2-1-0db27b4be95a@analog.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
master
Nuno Sá 2026-03-03 10:25:00 +00:00 committed by Vinod Koul
parent 28c829977f
commit 5f88899ec7
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/dmaengine.h
View File

@ -996,7 +996,8 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single(
* @vecs: The array of DMA vectors that should be transferred
* @nents: The number of DMA vectors in the array
* @dir: Specifies the direction of the data transfer
* @flags: DMA engine flags
* @flags: DMA engine flags - DMA_PREP_REPEAT can be used to mark a cyclic
* DMA transfer
*/
static inline struct dma_async_tx_descriptor *dmaengine_prep_peripheral_dma_vec(
struct dma_chan *chan, const struct dma_vec *vecs, size_t nents,