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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>
hifive-unleashed-5.1
Dave Jiang 2016-07-20 13:13:22 -07:00 committed by Vinod Koul
parent 370c0446af
commit a06a5bb908
1 changed files with 3 additions and 6 deletions
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9
drivers/dma/timb_dma.c
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@ -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)