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| author | Alexandre Bounine <alexandre.bounine@idt.com> | 2012-03-08 15:35:13 -0500 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-03-21 19:20:23 +0530 |
| commit | 185ecb5f4fd43911c35956d4cc7d94a1da30417f (patch) | |
| tree | ebbdb7f15157d19d8af892cd7948d93947d09ec2 /drivers/dma/fsldma.c | |
| parent | 16052827d98fbc13c31ebad560af4bd53e2b4dd5 (diff) | |
| download | linux-185ecb5f4fd43911c35956d4cc7d94a1da30417f.tar.gz | |
dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic
Add context parameter to device_prep_slave_sg() and device_prep_dma_cyclic()
interfaces to allow passing client/target specific information associated
with the data transfer.
Modify all affected DMA engine drivers.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma/fsldma.c')
| -rw-r--r-- | drivers/dma/fsldma.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index 7d7384b34621..8f84761f98ba 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -759,6 +759,7 @@ fail: * @sg_len: number of entries in @scatterlist * @direction: DMA direction * @flags: DMAEngine flags + * @context: transaction context (ignored) * * Prepare a set of descriptors for a DMA_SLAVE transaction. Following the * DMA_SLAVE API, this gets the device-specific information from the @@ -766,7 +767,8 @@ fail: */ static struct dma_async_tx_descriptor *fsl_dma_prep_slave_sg( struct dma_chan *dchan, struct scatterlist *sgl, unsigned int sg_len, - enum dma_transfer_direction direction, unsigned long flags) + enum dma_transfer_direction direction, unsigned long flags, + void *context) { /* * This operation is not supported on the Freescale DMA controller |