xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dmaengine: consolidate initialization of cookies

Browse Source 
Provide a common function to initialize a channels cookie values.

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>
This commit is contained in:
Russell King - ARM Linux
2012-03-06 22:35:47 +00:00
committed by Vinod Koul
parent 96a2af41c7
commit d3ee98cdcd
15 changed files with 31 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/dma/dmaengine.h
View File

@@ -8,6 +8,16 @@
#include <linux/bug.h>
#include <linux/dmaengine.h>
/**
* dma_cookie_init - initialize the cookies for a DMA channel
* @chan: dma channel to initialize
*/
static inline void dma_cookie_init(struct dma_chan *chan)
{
chan->cookie = DMA_MIN_COOKIE;
chan->completed_cookie = DMA_MIN_COOKIE;
}
/**
* dma_cookie_assign - assign a DMA engine cookie to the descriptor
* @tx: descriptor needing cookie