1 files changed, 4 insertions, 34 deletions

diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c
index 72eb7a49e16a..488032690378 100644
--- a/sound/soc/cirrus/ep93xx-pcm.c
+++ b/sound/soc/cirrus/ep93xx-pcm.c
@@ -29,8 +29,6 @@
 #include <mach/hardware.h>
 #include <mach/ep93xx-regs.h>
 
-#include "ep93xx-pcm.h"
-
 static const struct snd_pcm_hardware ep93xx_pcm_hardware = {
         .info                   = (SNDRV_PCM_INFO_MMAP          |
                                    SNDRV_PCM_INFO_MMAP_VALID    |
@@ -68,40 +66,12 @@ static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param)
 static int ep93xx_pcm_open(struct snd_pcm_substream *substream)
 {
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
-        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-        struct ep93xx_pcm_dma_params *dma_params;
-        struct ep93xx_dma_data *dma_data;
-        int ret;
 
         snd_soc_set_runtime_hwparams(substream, &ep93xx_pcm_hardware);
 
-        dma_data = kmalloc(sizeof(*dma_data), GFP_KERNEL);
-        if (!dma_data)
-                return -ENOMEM;
-
-        dma_params = snd_soc_dai_get_dma_data(cpu_dai, substream);
-        dma_data->port = dma_params->dma_port;
-        dma_data->name = dma_params->name;
-        dma_data->direction = snd_pcm_substream_to_dma_direction(substream);
-
-        ret = snd_dmaengine_pcm_open(substream, ep93xx_pcm_dma_filter, dma_data);
-        if (ret) {
-                kfree(dma_data);
-                return ret;
-        }
-
-        snd_dmaengine_pcm_set_data(substream, dma_data);
-
-        return 0;
-}
-
-static int ep93xx_pcm_close(struct snd_pcm_substream *substream)
-{
-        struct dma_data *dma_data = snd_dmaengine_pcm_get_data(substream);
-
-        snd_dmaengine_pcm_close(substream);
-        kfree(dma_data);
-        return 0;
+        return snd_dmaengine_pcm_open_request_chan(substream,
+                        ep93xx_pcm_dma_filter,
+                        snd_soc_dai_get_dma_data(rtd->cpu_dai, substream));
 }
 
 static int ep93xx_pcm_hw_params(struct snd_pcm_substream *substream,
@@ -131,7 +101,7 @@ static int ep93xx_pcm_mmap(struct snd_pcm_substream *substream,
 
 static struct snd_pcm_ops ep93xx_pcm_ops = {
         .open           = ep93xx_pcm_open,
-        .close          = ep93xx_pcm_close,
+        .close          = snd_dmaengine_pcm_close_release_chan,
         .ioctl          = snd_pcm_lib_ioctl,
         .hw_params      = ep93xx_pcm_hw_params,
         .hw_free        = ep93xx_pcm_hw_free,