dmaengine: consolidate assignment of DMA cookies
Everyone deals with assigning DMA cookies in the same way (it's part of
the API so they should be), so lets consolidate the common code into a
helper function to avoid this duplication.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
[imx-sdma.c & mxs-dma.c]
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index 60473f0..7bb154a 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -257,13 +257,7 @@
/* Move descriptor to queue */
list_move_tail(&sdesc->node, &schan->queued);
- /* Update cookie */
- cookie = schan->chan.cookie + 1;
- if (cookie <= 0)
- cookie = 1;
-
- schan->chan.cookie = cookie;
- sdesc->desc.cookie = cookie;
+ cookie = dma_cookie_assign(txd);
spin_unlock_irqrestore(&schan->lock, flags);