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/timb_dma.c b/drivers/dma/timb_dma.c
index 4b61879..b6e83fc 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -350,12 +350,7 @@
dma_cookie_t cookie;
spin_lock_bh(&td_chan->lock);
-
- cookie = txd->chan->cookie;
- if (++cookie < 0)
- cookie = 1;
- txd->chan->cookie = cookie;
- txd->cookie = cookie;
+ cookie = dma_cookie_assign(txd);
if (list_empty(&td_chan->active_list)) {
dev_dbg(chan2dev(txd->chan), "%s: started %u\n", __func__,