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path: root/drivers/dma/imx-sdma.c
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Diffstat (limited to 'drivers/dma/imx-sdma.c')
-rw-r--r--drivers/dma/imx-sdma.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index fb4f499..1dc2a4a 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -815,8 +815,6 @@ static int sdma_request_channel(struct sdma_channel *sdmac)
init_completion(&sdmac->done);
- sdmac->buf_tail = 0;
-
return 0;
out:
@@ -927,6 +925,8 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
sdmac->flags = 0;
+ sdmac->buf_tail = 0;
+
dev_dbg(sdma->dev, "setting up %d entries for channel %d.\n",
sg_len, channel);
@@ -1027,6 +1027,8 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
sdmac->status = DMA_IN_PROGRESS;
+ sdmac->buf_tail = 0;
+
sdmac->flags |= IMX_DMA_SG_LOOP;
sdmac->direction = direction;
ret = sdma_load_context(sdmac);