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authorSascha Hauer <s.hauer@pengutronix.de>2011-01-31 12:42:51 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2011-01-31 12:42:51 +0100
commit60f1df5dc6ecd07befc332ae30109fb86505634c (patch)
tree77cb78a15424ff493f4d171d66752009b4483420 /drivers/dma
parent2335d338a20a6f5ac70ae4338733c8ff5933f978 (diff)
parent341b9419a8c0a4cdb75773c576870f1eb655516d (diff)
downloadop-kernel-dev-60f1df5dc6ecd07befc332ae30109fb86505634c.zip
op-kernel-dev-60f1df5dc6ecd07befc332ae30109fb86505634c.tar.gz
Merge branch 'dmaengine-shawn' into dmaengine
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/imx-sdma.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 1eb3f00..0123740 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -450,7 +450,7 @@ static void sdma_handle_channel_loop(struct sdma_channel *sdmac)
if (bd->mode.status & BD_RROR)
sdmac->status = DMA_ERROR;
else
- sdmac->status = DMA_SUCCESS;
+ sdmac->status = DMA_IN_PROGRESS;
bd->mode.status |= BD_DONE;
sdmac->buf_tail++;
@@ -942,15 +942,12 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
param = BD_DONE | BD_EXTD | BD_CONT;
- if (sdmac->flags & IMX_DMA_SG_LOOP) {
+ if (i + 1 == sg_len) {
param |= BD_INTR;
- if (i + 1 == sg_len)
- param |= BD_WRAP;
+ param |= BD_LAST;
+ param &= ~BD_CONT;
}
- if (i + 1 == sg_len)
- param |= BD_INTR;
-
dev_dbg(sdma->dev, "entry %d: count: %d dma: 0x%08x %s%s\n",
i, count, sg->dma_address,
param & BD_WRAP ? "wrap" : "",
@@ -964,6 +961,7 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
return &sdmac->desc;
err_out:
+ sdmac->status = DMA_ERROR;
return NULL;
}
@@ -1077,14 +1075,12 @@ static enum dma_status sdma_tx_status(struct dma_chan *chan,
{
struct sdma_channel *sdmac = to_sdma_chan(chan);
dma_cookie_t last_used;
- enum dma_status ret;
last_used = chan->cookie;
- ret = dma_async_is_complete(cookie, sdmac->last_completed, last_used);
dma_set_tx_state(txstate, sdmac->last_completed, last_used, 0);
- return ret;
+ return sdmac->status;
}
static void sdma_issue_pending(struct dma_chan *chan)
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