[PATCH V3 2/6] dmaengine: change the flags of request_irq()

Huang Shijie b32955 at freescale.com
Wed Mar 30 04:40:09 EDT 2011


The GPMI may have many DMA channels, such as the imx23 has
four DMA channels. All these DMA channels share the same interrupt.
So change the flags from '0' to IRQF_SHARED, else there will be
an EBUSY error returns.

Signed-off-by: Huang Shijie <b32955 at freescale.com>
---
 drivers/dma/mxs-dma.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 88aad4f..0ee5b52 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -328,7 +328,7 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan)
 	memset(mxs_chan->ccw, 0, PAGE_SIZE);
 
 	ret = request_irq(mxs_chan->chan_irq, mxs_dma_int_handler,
-				0, "mxs-dma", mxs_dma);
+				IRQF_SHARED, "mxs-dma", mxs_dma);
 	if (ret)
 		goto err_irq;
 
-- 
1.7.0.4





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