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>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index d408c2206023..4e0dff59901d 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -542,7 +542,8 @@ static void td_issue_pending(struct dma_chan *chan)
 
 static struct dma_async_tx_descriptor *td_prep_slave_sg(struct dma_chan *chan,
         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)
 {
         struct timb_dma_chan *td_chan =
                 container_of(chan, struct timb_dma_chan, chan);