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Commit d254c8d0 authored by Dave Jiang's avatar Dave Jiang Committed by Vinod Koul
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dmaengine: txx9dmac: 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: default avatarDave Jiang <dave.jiang@intel.com>
Reviewed-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent a06a5bb9

drivers/dma/txx9dmac.c

+3 −6
Original line number Diff line number Diff line
@@ -403,16 +403,14 @@ static void 
txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,

			     struct txx9dmac_desc *desc)

{

	dma_async_tx_callback callback;

	void *param;

	struct dmaengine_desc_callback cb;

	struct dma_async_tx_descriptor *txd = &desc->txd;



	dev_vdbg(chan2dev(&dc->chan), "descriptor %u %p complete\n",

		 txd->cookie, desc);



	dma_cookie_complete(txd);

	callback = txd->callback;

	param = txd->callback_param;

	dmaengine_desc_get_callback(txd, &cb);



	txx9dmac_sync_desc_for_cpu(dc, desc);

	list_splice_init(&desc->tx_list, &dc->free_list);
@@ -423,8 +421,7 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc, 
	 * 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);

	dma_run_dependencies(txd);

}