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authorAlexandre Bounine <alexandre.bounine@idt.com>2012-03-08 15:35:13 -0500
committerVinod Koul <vinod.koul@linux.intel.com>2012-03-21 19:20:23 +0530
commit185ecb5f4fd43911c35956d4cc7d94a1da30417f (patch)
treeebbdb7f15157d19d8af892cd7948d93947d09ec2 /drivers/dma/fsldma.c
parent16052827d98fbc13c31ebad560af4bd53e2b4dd5 (diff)
downloadlinux-185ecb5f4fd43911c35956d4cc7d94a1da30417f.tar.bz2
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.c4
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