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Diffstat (limited to 'Documentation/driver-api/dmaengine/client.rst')
| -rw-r--r-- | Documentation/driver-api/dmaengine/client.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/driver-api/dmaengine/client.rst b/Documentation/driver-api/dmaengine/client.rst index 2104830a99ae..09a3f66dcd26 100644 --- a/Documentation/driver-api/dmaengine/client.rst +++ b/Documentation/driver-api/dmaengine/client.rst @@ -5,7 +5,7 @@ DMA Engine API Guide Vinod Koul <vinod dot koul at intel.com> .. note:: For DMA Engine usage in async_tx please see: - ``Documentation/crypto/async-tx-api.txt`` + ``Documentation/crypto/async-tx-api.rst`` Below is a guide to device driver writers on how to use the Slave-DMA API of the @@ -86,7 +86,9 @@ The details of these operations are: - interleaved_dma: This is common to Slave as well as M2M clients. For slave address of devices' fifo could be already known to the driver. Various types of operations could be expressed by setting - appropriate values to the 'dma_interleaved_template' members. + appropriate values to the 'dma_interleaved_template' members. Cyclic + interleaved DMA transfers are also possible if supported by the channel by + setting the DMA_PREP_REPEAT transfer flag. A non-NULL return of this transfer API represents a "descriptor" for the given transaction. |