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dma: imx-dma: start transfer in issue_pending 

The DMA engine API requires that transfers are started in issue_pending
instead of tx_submit. Fix this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
[corrected change log to DMA engine API insteadof DMA API]
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Sascha Hauer 2012-01-09 10:32:49 +01:00 committed by Vinod Koul
parent c0fa6c8af7
commit 5b3168763f
1 changed files with 4 additions and 5 deletions
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9
drivers/dma/imx-dma.c
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@ -186,8 +186,6 @@ static dma_cookie_t imxdma_tx_submit(struct dma_async_tx_descriptor *tx)
cookie = imxdma_assign_cookie(imxdmac);
imx_dma_enable(imxdmac->imxdma_channel);
spin_unlock_irq(&imxdmac->lock);
return cookie;
@ -332,9 +330,10 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
static void imxdma_issue_pending(struct dma_chan *chan)
{
/*
* Nothing to do. We only have a single descriptor
*/
struct imxdma_channel *imxdmac = to_imxdma_chan(chan);
if (imxdmac->status == DMA_IN_PROGRESS)
imx_dma_enable(imxdmac->imxdma_channel);
}
static int __init imxdma_probe(struct platform_device *pdev)