diff options
Diffstat (limited to 'sound/soc/cirrus/ep93xx-pcm.c')
| -rw-r--r-- | sound/soc/cirrus/ep93xx-pcm.c | 38 |
1 files changed, 4 insertions, 34 deletions
diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c index 72eb7a4..4880326 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, |
