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[1/6] dmaengine: add dmaengine_prep_dma_sg() helper

Message ID 1413042408-28491-2-git-send-email-vinod.koul@intel.com (mailing list archive)
State Not Applicable
Delegated to: Scott Wood
Headers show

Commit Message

Vinod Koul Oct. 11, 2014, 3:46 p.m. UTC 
This was only prep API which didnt have an helper

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 include/linux/dmaengine.h |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
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Patch

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3d291f5..ce8a08e 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -757,6 +757,16 @@  static inline struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
 	return chan->device->device_prep_interleaved_dma(chan, xt, flags);
 }
 
+static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg(
+		struct dma_chan *chan,
+		struct scatterlist *dst_sg, unsigned int dst_nents,
+		struct scatterlist *src_sg, unsigned int src_nents,
+		unsigned long flags)
+{
+	return chan->device->device_prep_dma_sg(chan, dst_sg, dst_nents,
+			src_sg, src_nents, flags);
+}
+
 static inline int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
 {
 	if (!chan || !caps)