dma: imx-dma: start transfer in issue_pending (5b316876) · Commits · 戴 / test

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:

drivers/dma/imx-dma.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -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)