diff options
Diffstat (limited to 'target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch')
| -rw-r--r-- | target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch b/target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch index 8fcf8caa8a..21efb046c2 100644 --- a/target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch +++ b/target/linux/apm821xx/patches-4.4/012-dmaengine-Add-transfer-termination-synchronization-s.patch @@ -53,11 +53,9 @@ Signed-off-by: Vinod Koul <vinod.koul@intel.com> include/linux/dmaengine.h | 90 ++++++++++++++++++++++++++++++++++++ 4 files changed, 148 insertions(+), 5 deletions(-) -diff --git a/Documentation/dmaengine/client.txt b/Documentation/dmaengine/client.txt -index 11fb87f..d9f9f46 100644 --- a/Documentation/dmaengine/client.txt +++ b/Documentation/dmaengine/client.txt -@@ -128,7 +128,7 @@ The slave DMA usage consists of following steps: +@@ -117,7 +117,7 @@ The slave DMA usage consists of followin transaction. For cyclic DMA, a callback function may wish to terminate the @@ -66,7 +64,7 @@ index 11fb87f..d9f9f46 100644 Therefore, it is important that DMA engine drivers drop any locks before calling the callback function which may cause a -@@ -166,12 +166,29 @@ The slave DMA usage consists of following steps: +@@ -155,12 +155,29 @@ The slave DMA usage consists of followin Further APIs: @@ -97,7 +95,7 @@ index 11fb87f..d9f9f46 100644 2. int dmaengine_pause(struct dma_chan *chan) This pauses activity on the DMA channel without data loss. -@@ -197,3 +214,20 @@ Further APIs: +@@ -186,3 +203,20 @@ Further APIs: a running DMA channel. It is recommended that DMA engine users pause or stop (via dmaengine_terminate_all()) the channel before using this API. @@ -118,8 +116,6 @@ index 11fb87f..d9f9f46 100644 + + The behavior of this function is undefined if dma_async_issue_pending() has + been called between dmaengine_terminate_async() and this function. -diff --git a/Documentation/dmaengine/provider.txt b/Documentation/dmaengine/provider.txt -index 67d4ce4..122b7f4 100644 --- a/Documentation/dmaengine/provider.txt +++ b/Documentation/dmaengine/provider.txt @@ -327,8 +327,24 @@ supported. @@ -149,11 +145,9 @@ index 67d4ce4..122b7f4 100644 Misc notes (stuff that should be documented, but don't really know where to put them) -diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c -index 3ecec14..d6fc82e 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c -@@ -265,8 +265,11 @@ static void dma_chan_put(struct dma_chan *chan) +@@ -266,8 +266,11 @@ static void dma_chan_put(struct dma_chan module_put(dma_chan_to_owner(chan)); /* This channel is not in use anymore, free it */ @@ -166,11 +160,9 @@ index 3ecec14..d6fc82e 100644 /* If the channel is used via a DMA request router, free the mapping */ if (chan->router && chan->router->route_free) { -diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h -index c47c68e..4662d9a 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h -@@ -654,6 +654,8 @@ enum dmaengine_alignment { +@@ -681,6 +681,8 @@ struct dma_filter { * paused. Returns 0 or an error code * @device_terminate_all: Aborts all transfers on a channel. Returns 0 * or an error code @@ -179,7 +171,7 @@ index c47c68e..4662d9a 100644 * @device_tx_status: poll for transaction completion, the optional * txstate parameter can be supplied with a pointer to get a * struct with auxiliary transfer status information, otherwise the call -@@ -737,6 +739,7 @@ struct dma_device { +@@ -765,6 +767,7 @@ struct dma_device { int (*device_pause)(struct dma_chan *chan); int (*device_resume)(struct dma_chan *chan); int (*device_terminate_all)(struct dma_chan *chan); @@ -187,7 +179,7 @@ index c47c68e..4662d9a 100644 enum dma_status (*device_tx_status)(struct dma_chan *chan, dma_cookie_t cookie, -@@ -828,6 +831,13 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg( +@@ -856,6 +859,13 @@ static inline struct dma_async_tx_descri src_sg, src_nents, flags); } @@ -201,7 +193,7 @@ index c47c68e..4662d9a 100644 static inline int dmaengine_terminate_all(struct dma_chan *chan) { if (chan->device->device_terminate_all) -@@ -836,6 +846,86 @@ static inline int dmaengine_terminate_all(struct dma_chan *chan) +@@ -864,6 +874,86 @@ static inline int dmaengine_terminate_al return -ENOSYS; } @@ -288,6 +280,3 @@ index c47c68e..4662d9a 100644 static inline int dmaengine_pause(struct dma_chan *chan) { if (chan->device->device_pause) --- -2.8.1 - |