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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: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -403,16 +403,14 @@ static void
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txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,
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struct txx9dmac_desc *desc)
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{
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dma_async_tx_callback callback;
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void *param;
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struct dmaengine_desc_callback cb;
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struct dma_async_tx_descriptor *txd = &desc->txd;
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dev_vdbg(chan2dev(&dc->chan), "descriptor %u %p complete\n",
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txd->cookie, desc);
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dma_cookie_complete(txd);
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callback = txd->callback;
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param = txd->callback_param;
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dmaengine_desc_get_callback(txd, &cb);
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txx9dmac_sync_desc_for_cpu(dc, desc);
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list_splice_init(&desc->tx_list, &dc->free_list);
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@ -423,8 +421,7 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,
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* The API requires that no submissions are done from a
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* callback, so we don't need to drop the lock here
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*/
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if (callback)
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callback(param);
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dmaengine_desc_callback_invoke(&cb, NULL);
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dma_run_dependencies(txd);
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}
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