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dmaengine: imx-sdma: return sdmac->status in sdma_tx_status() 

The sdmac->status was designed to reflect the status of the tx,
so simply return it in sdma_tx_status().  Then dma client can call
dma_async_is_tx_complete() to know the status of the tx.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Shawn Guo 2011-01-20 05:50:37 +08:00 committed by Sascha Hauer
parent 4b2ce9ddb3
commit 8a9659114c
1 changed files with 1 additions and 3 deletions
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4
drivers/dma/imx-sdma.c
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@ -1061,14 +1061,12 @@ 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)