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authorDave Jiang <dave.jiang@intel.com>2016-07-20 23:13:22 +0300
committerVinod Koul <vinod.koul@intel.com>2016-08-08 05:41:41 +0300
commita06a5bb908248cdc4f696ae5b6334e3b2e150fbc (patch)
treeb32c2e99885a9f06dba033c430799b555fd434d2 /drivers/dma/timb_dma.c
parent370c0446af5e3c8ddefbb753a1df84c278fff6d0 (diff)
downloadlinux-a06a5bb908248cdc4f696ae5b6334e3b2e150fbc.tar.xz
dmaengine: timb_dma: convert callback to helper function
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/timb_dma.c')
-rw-r--r--drivers/dma/timb_dma.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index e82745aa42a8..896bafb7a532 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -226,8 +226,7 @@ static void __td_start_dma(struct timb_dma_chan *td_chan)
static void __td_finish(struct timb_dma_chan *td_chan)
{
- dma_async_tx_callback callback;
- void *param;
+ struct dmaengine_desc_callback cb;
struct dma_async_tx_descriptor *txd;
struct timb_dma_desc *td_desc;
@@ -252,8 +251,7 @@ static void __td_finish(struct timb_dma_chan *td_chan)
dma_cookie_complete(txd);
td_chan->ongoing = false;
- callback = txd->callback;
- param = txd->callback_param;
+ dmaengine_desc_get_callback(txd, &cb);
list_move(&td_desc->desc_node, &td_chan->free_list);
@@ -262,8 +260,7 @@ static void __td_finish(struct timb_dma_chan *td_chan)
* The API requires that no submissions are done from a
* callback, so we don't need to drop the lock here
*/
- if (callback)
- callback(param);
+ dmaengine_desc_callback_invoke(&cb, NULL);
}
static u32 __td_ier_mask(struct timb_dma *td)