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atmel-mci: fix initialization of dma slave data

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The conversion of atmel-mci to dma_request_channel missed the
initialization of the channel dma_slave information.  The filter_fn passed
to dma_request_channel is responsible for initializing the channel's
private data.  This implementation has the additional benefit of enabling
a generic client-channel data passing mechanism.

Reviewed-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dan Williams
2009-02-18 14:48:26 -08:00
committed by Linus Torvalds
parent 9ccf3b5e84
commit 287d859222
5 changed files with 9 additions and 7 deletions
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drivers/mmc/host/atmel-mci.c
+3 -2
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@@ -1548,9 +1548,10 @@ static bool filter(struct dma_chan *chan, void *slave)
{
struct dw_dma_slave *dws = slave;
if (dws->dma_dev == chan->device->dev)
if (dws->dma_dev == chan->device->dev) {
chan->private = dws;
return true;
else
} else
return false;
}
#endif