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authorAlexandre Bounine <alexandre.bounine@idt.com>2012-03-09 01:11:18 +0400
committerVinod Koul <vinod.koul@linux.intel.com>2012-03-21 17:50:22 +0400
commit16052827d98fbc13c31ebad560af4bd53e2b4dd5 (patch)
treeaff4f3362a643d2d4621f21dd56996988c0e733c /include/linux/dmaengine.h
parentad1122e545b55013089e6cc18ac37b47b46f2a7d (diff)
downloadlinux-16052827d98fbc13c31ebad560af4bd53e2b4dd5.tar.xz
dmaengine/dma_slave: introduce inline wrappers
Add inline wrappers for device_prep_slave_sg() and device_prep_dma_cyclic() interfaces to hide new parameter from current users of affected interfaces. Convert current users to use new wrappers instead of direct calls. Suggested by Russell King [https://lkml.org/lkml/2012/2/3/269]. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'include/linux/dmaengine.h')
-rw-r--r--include/linux/dmaengine.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 715babf4bffe..03d68b7e5705 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -622,6 +622,22 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single(
return chan->device->device_prep_slave_sg(chan, &sg, 1, dir, flags);
}
+static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_sg(
+ struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len,
+ enum dma_transfer_direction dir, unsigned long flags)
+{
+ return chan->device->device_prep_slave_sg(chan, sgl, sg_len,
+ dir, flags);
+}
+
+static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
+ struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
+ size_t period_len, enum dma_transfer_direction dir)
+{
+ return chan->device->device_prep_dma_cyclic(chan, buf_addr, buf_len,
+ period_len, dir);
+}
+
static inline int dmaengine_terminate_all(struct dma_chan *chan)
{
return dmaengine_device_control(chan, DMA_TERMINATE_ALL, 0);