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Commit dac86a14 authored by Dave Jiang's avatar Dave Jiang Committed by Vinod Koul
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dmaengine: ep93xx_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: 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 577ef925

drivers/dma/ep93xx_dma.c

+4 −6
Original line number Diff line number Diff line
@@ -739,10 +739,10 @@ static void ep93xx_dma_tasklet(unsigned long data) 
{

	struct ep93xx_dma_chan *edmac = (struct ep93xx_dma_chan *)data;

	struct ep93xx_dma_desc *desc, *d;

	dma_async_tx_callback callback = NULL;

	void *callback_param = NULL;

	struct dmaengine_desc_callback cb;

	LIST_HEAD(list);



	memset(&cb, 0, sizeof(cb));

	spin_lock_irq(&edmac->lock);

	/*

	 * If dma_terminate_all() was called before we get to run, the active
@@ -757,8 +757,7 @@ static void ep93xx_dma_tasklet(unsigned long data) 
				dma_cookie_complete(&desc->txd);

			list_splice_init(&edmac->active, &list);

		}

		callback = desc->txd.callback;

		callback_param = desc->txd.callback_param;

		dmaengine_desc_get_callback(&desc->txd, &cb);

	}

	spin_unlock_irq(&edmac->lock);
@@ -771,8 +770,7 @@ static void ep93xx_dma_tasklet(unsigned long data) 
		ep93xx_dma_desc_put(edmac, desc);

	}



	if (callback)

		callback(callback_param);

	dmaengine_desc_callback_invoke(&cb, NULL);

}



static irqreturn_t ep93xx_dma_interrupt(int irq, void *dev_id)