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authorDan Williams <dan.j.williams@intel.com>2009-02-18 14:48:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-18 15:37:55 -0800
commit287d859222e0adbc67666a6154aaf42d7d5bbb54 (patch)
treea3e00f7b42f91c0d00f9d5a8d79414939b3c566f /include
parent9ccf3b5e8409927835c4d38cb2f380c9e4349e76 (diff)
downloadlinux-2.6.38-lt-ux500-287d859222e0adbc67666a6154aaf42d7d5bbb54.tar.gz
atmel-mci: fix initialization of dma slave data
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/dmaengine.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3e68469c188..f0413845f20 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -121,6 +121,7 @@ struct dma_chan_percpu {
* @local: per-cpu pointer to a struct dma_chan_percpu
* @client-count: how many clients are using this channel
* @table_count: number of appearances in the mem-to-mem allocation table
+ * @private: private data for certain client-channel associations
*/
struct dma_chan {
struct dma_device *device;
@@ -134,6 +135,7 @@ struct dma_chan {
struct dma_chan_percpu *local;
int client_count;
int table_count;
+ void *private;
};
/**