X-Git-Url: http://plrg.eecs.uci.edu/git/?p=firefly-linux-kernel-4.4.55.git;a=blobdiff_plain;f=include%2Flinux%2Fdmaengine.h;h=00d2addf22e585000f2b3c0b70bc15e9e79179ab;hp=96d3e4ab11a91a4ea28d0f864d1cfbee6e249127;hb=5013a8fe9733d7906daf046cd164bb2028a63fea;hpb=977b58e1dd6fc2a751fb427798bfb8256476c93e

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 96d3e4ab11a9..00d2addf22e5 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -601,6 +601,10 @@ struct dma_device {
 	enum dma_status (*device_tx_status)(struct dma_chan *chan,
 					    dma_cookie_t cookie,
 					    struct dma_tx_state *txstate);
+#ifdef CONFIG_ARCH_ROCKCHIP
+	int (*dma_getposition)(struct dma_chan *chan,
+		dma_addr_t *src, dma_addr_t *dst);
+#endif
 	void (*device_issue_pending)(struct dma_chan *chan);
 };
 
@@ -664,9 +668,21 @@ static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
 		size_t period_len, enum dma_transfer_direction dir,
 		unsigned long flags)
 {
+	unsigned int t=0;
 	return chan->device->device_prep_dma_cyclic(chan, buf_addr, buf_len,
-						period_len, dir, flags, NULL);
+						period_len, dir, flags, &t);
 }
+#ifdef CONFIG_ARCH_ROCKCHIP
+static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_infiniteloop(
+		struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
+		size_t period_len, enum dma_transfer_direction dir,
+		unsigned long flags,unsigned int limit)
+{
+	unsigned int t=limit;
+	return chan->device->device_prep_dma_cyclic(chan, buf_addr, buf_len,
+						period_len, dir, flags, &t);
+}
+#endif
 
 static inline struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
 		struct dma_chan *chan, struct dma_interleaved_template *xt,