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>

5 files changed, 6 insertions, 7 deletions

diff --git a/sound/soc/ep93xx/ep93xx-pcm.c b/sound/soc/ep93xx/ep93xx-pcm.c
index de8390449873..50593e50ad57 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 52b0dedbf996..af46b4e2b438 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -160,7 +160,7 @@ 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/mxs/mxs-pcm.c b/sound/soc/mxs/mxs-pcm.c
index 105f42a394df..661b678d08a8 100644
--- a/sound/soc/mxs/mxs-pcm.c
+++ b/sound/soc/mxs/mxs-pcm.c
@@ -132,7 +132,7 @@ static int snd_mxs_pcm_hw_params(struct snd_pcm_substream *substream,
 
         iprtd->buf = 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 0193e595d415..5cfcc655e95f 100644
--- a/sound/soc/sh/siu_pcm.c
+++ b/sound/soc/sh/siu_pcm.c
@@ -130,7 +130,7 @@ 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,
+        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");
@@ -180,7 +180,7 @@ static int siu_pcm_rd_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,
+        desc = dmaengine_prep_slave_sg(siu_stream->chan,
                 &sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc) {
                 dev_err(dev, "Failed to allocate dma descriptor\n");
diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c
index 21554611557c..b609d2c64c55 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_MEM_TO_DEV : DMA_DEV_TO_MEM,
                 DMA_PREP_INTERRUPT | DMA_CTRL_ACK);