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>

cherry-picked from mainline commit
	16052827d98fbc13c31ebad560af4bd53e2b4dd5

Change-Id: I929a49556539621a0546829e88b3caa498c94be2
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/94463

4 files changed, 10 insertions, 6 deletions

diff --git a/sound/soc/ep93xx/ep93xx-pcm.c b/sound/soc/ep93xx/ep93xx-pcm.c
index 8dfd3ad84b19..87c6e0a0ddd2 100644
--- a/sound/soc/ep93xx/ep93xx-pcm.c
+++ b/sound/soc/ep93xx/ep93xx-pcm.c
@@ -142,11 +142,10 @@ static int ep93xx_pcm_dma_submit(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct ep93xx_runtime_data *rtd = runtime->private_data;
 	struct dma_chan *chan = rtd->dma_chan;
-	struct dma_device *dma_dev = chan->device;
 	struct dma_async_tx_descriptor *desc;
 
 	rtd->pointer_bytes = 0;
-	desc = dma_dev->device_prep_dma_cyclic(chan, runtime->dma_addr,
+	desc = dmaengine_prep_dma_cyclic(chan, runtime->dma_addr,
 					       rtd->period_bytes * rtd->periods,
 					       rtd->period_bytes,
 					       rtd->dma_data.direction);
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 43fdc24f7e8d..edc2cea49fb3 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -155,7 +155,7 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
 
 	iprtd->buf = (unsigned int *)substream->dma_buffer.area;
 
-	iprtd->desc = chan->device->device_prep_dma_cyclic(chan, dma_addr,
+	iprtd->desc = dmaengine_prep_dma_cyclic(chan, dma_addr,
 			iprtd->period_bytes * iprtd->periods,
 			iprtd->period_bytes,
 			substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
diff --git a/sound/soc/sh/siu_pcm.c b/sound/soc/sh/siu_pcm.c
index f8f681690a71..de9abd032fd4 100644
--- a/sound/soc/sh/siu_pcm.c
+++ b/sound/soc/sh/siu_pcm.c
@@ -130,8 +130,8 @@ static int siu_pcm_wr_set(struct siu_port *port_info,
 	sg_dma_len(&sg) = size;
 	sg_dma_address(&sg) = buff;
 
-	desc = siu_stream->chan->device->device_prep_slave_sg(siu_stream->chan,
-		&sg, 1, DMA_TO_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	desc = dmaengine_prep_slave_sg(siu_stream->chan,
+		&sg, 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc) {
 		dev_err(dev, "Failed to allocate a dma descriptor\n");
 		return -ENOMEM;
@@ -180,8 +180,13 @@ static int siu_pcm_rd_set(struct siu_port *port_info,
 	sg_dma_len(&sg) = size;
 	sg_dma_address(&sg) = buff;
 
+<<<<<<< HEAD
 	desc = siu_stream->chan->device->device_prep_slave_sg(siu_stream->chan,
 		&sg, 1, DMA_FROM_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+=======
+	desc = dmaengine_prep_slave_sg(siu_stream->chan,
+		&sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+>>>>>>> 1605282... dmaengine/dma_slave: introduce inline wrappers
 	if (!desc) {
 		dev_err(dev, "Failed to allocate dma descriptor\n");
 		return -ENOMEM;
diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c
index 3de99af8cb82..acd00273d361 100644
--- a/sound/soc/txx9/txx9aclc.c
+++ b/sound/soc/txx9/txx9aclc.c
@@ -132,7 +132,7 @@ txx9aclc_dma_submit(struct txx9aclc_dmadata *dmadata, dma_addr_t buf_dma_addr)
 	sg_set_page(&sg, pfn_to_page(PFN_DOWN(buf_dma_addr)),
 		    dmadata->frag_bytes, buf_dma_addr & (PAGE_SIZE - 1));
 	sg_dma_address(&sg) = buf_dma_addr;
-	desc = chan->device->device_prep_slave_sg(chan, &sg, 1,
+	desc = dmaengine_prep_slave_sg(chan, &sg, 1,
 		dmadata->substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
 		DMA_TO_DEVICE : DMA_FROM_DEVICE,
 		DMA_PREP_INTERRUPT | DMA_CTRL_ACK);