diff options
Diffstat (limited to 'sound/soc/pxa/mmp-pcm.c')
| -rw-r--r-- | sound/soc/pxa/mmp-pcm.c | 34 |
1 files changed, 6 insertions, 28 deletions
diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c index 190eb0bccf5..34993001526 100644 --- a/sound/soc/pxa/mmp-pcm.c +++ b/sound/soc/pxa/mmp-pcm.c @@ -118,9 +118,8 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct platform_device *pdev = to_platform_device(rtd->platform->dev); struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct mmp_dma_data *dma_data; + struct mmp_dma_data dma_data; struct resource *r; - int ret; r = platform_get_resource(pdev, IORESOURCE_DMA, substream->stream); if (!r) @@ -128,33 +127,12 @@ static int mmp_pcm_open(struct snd_pcm_substream *substream) snd_soc_set_runtime_hwparams(substream, &mmp_pcm_hardware[substream->stream]); - dma_data = devm_kzalloc(&pdev->dev, - sizeof(struct mmp_dma_data), GFP_KERNEL); - if (dma_data == NULL) - return -ENOMEM; - dma_data->dma_res = r; - dma_data->ssp_id = cpu_dai->id; + dma_data.dma_res = r; + dma_data.ssp_id = cpu_dai->id; - ret = snd_dmaengine_pcm_open(substream, filter, dma_data); - if (ret) { - devm_kfree(&pdev->dev, dma_data); - return ret; - } - - snd_dmaengine_pcm_set_data(substream, dma_data); - return 0; -} - -static int mmp_pcm_close(struct snd_pcm_substream *substream) -{ - struct mmp_dma_data *dma_data = snd_dmaengine_pcm_get_data(substream); - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct platform_device *pdev = to_platform_device(rtd->platform->dev); - - snd_dmaengine_pcm_close(substream); - devm_kfree(&pdev->dev, dma_data); - return 0; + return snd_dmaengine_pcm_open_request_chan(substream, filter, + &dma_data); } static int mmp_pcm_mmap(struct snd_pcm_substream *substream, @@ -171,7 +149,7 @@ static int mmp_pcm_mmap(struct snd_pcm_substream *substream, struct snd_pcm_ops mmp_pcm_ops = { .open = mmp_pcm_open, - .close = mmp_pcm_close, + .close = snd_dmaengine_pcm_close_release_chan, .ioctl = snd_pcm_lib_ioctl, .hw_params = mmp_pcm_hw_params, .trigger = snd_dmaengine_pcm_trigger, |