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Diffstat (limited to 'include')
-rw-r--r--include/linux/dmaengine.h17
1 files changed, 3 insertions, 14 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index bca2fc75889..1419a509447 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -29,18 +29,6 @@
#include <linux/dma-mapping.h>
/**
- * enum dma_state_client - state of the channel in the client
- * @DMA_ACK: client would like to use, or was using this channel
- * @DMA_DUP: client has already seen this channel, or is not using this channel
- * @DMA_NAK: client does not want to see any more channels
- */
-enum dma_state_client {
- DMA_ACK,
- DMA_DUP,
- DMA_NAK,
-};
-
-/**
* typedef dma_cookie_t - an opaque DMA cookie
*
* if dma_cookie_t is >0 it's a DMA request cookie, <0 it's an error code
@@ -160,9 +148,10 @@ void dma_chan_cleanup(struct kref *kref);
* When this optional parameter is specified in a call to dma_request_channel a
* suitable channel is passed to this routine for further dispositioning before
* being returned. Where 'suitable' indicates a non-busy channel that
- * satisfies the given capability mask.
+ * satisfies the given capability mask. It returns 'true' to indicate that the
+ * channel is suitable.
*/
-typedef enum dma_state_client (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
+typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
typedef void (*dma_async_tx_callback)(void *dma_async_param);
/**