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>
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 7632290..4d8c7b9 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -403,16 +403,14 @@
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 @@
* 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);
}