Thread (28 messages) 28 messages, 7 authors, 2011-03-07

[PATCH 6/8 resend] dw_dmac: Mark all tx_descriptors with DMA_CRTL_ACK after xfer finish

From: viresh kumar <hidden>
Date: 2011-03-03 03:45:27
Also in: lkml

On 03/03/2011 12:04 AM, Koul, Vinod wrote:
On Mon, 2011-02-28 at 16:11 +0530, Viresh Kumar wrote:
quoted
dwc_desc_get checks all descriptors for DMA_CTRL_ACK before allocating them for
transfers. And descriptors are not marked with DMA_CRTL_ACK after transfer
finishes. Thus descriptor once used is not usable again. This patch marks
descriptors with DMA_CRTL_ACK after dma xfer finishes

Signed-off-by: Viresh Kumar <redacted>
---
 drivers/dma/dw_dmac.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index c40b89f..01f783d 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -196,6 +196,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc)
 	dma_async_tx_callback		callback;
 	void				*param;
 	struct dma_async_tx_descriptor	*txd = &desc->txd;
+	struct dw_desc	*child;
Please align this with previous ones....
Will be done

-- 
viresh
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