diff options
| -rw-r--r-- | sound/soc/blackfin/bf5xx-i2s-pcm.c | 63 |
1 files changed, 3 insertions, 60 deletions
diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c index 107c1c9b1cb6..9931a18c962e 100644 --- a/sound/soc/blackfin/bf5xx-i2s-pcm.c +++ b/sound/soc/blackfin/bf5xx-i2s-pcm.c @@ -209,55 +209,12 @@ static struct snd_pcm_ops bf5xx_pcm_i2s_ops = { .mmap = bf5xx_pcm_mmap, }; -static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream) -{ - struct snd_pcm_substream *substream = pcm->streams[stream].substream; - struct snd_dma_buffer *buf = &substream->dma_buffer; - size_t size = bf5xx_pcm_hardware.buffer_bytes_max; - - buf->dev.type = SNDRV_DMA_TYPE_DEV; - buf->dev.dev = pcm->card->dev; - buf->private_data = NULL; - buf->area = dma_alloc_coherent(pcm->card->dev, size, - &buf->addr, GFP_KERNEL); - if (!buf->area) { - pr_err("Failed to allocate dma memory - Please increase uncached DMA memory region\n"); - return -ENOMEM; - } - buf->bytes = size; - - pr_debug("%s, area:%p, size:0x%08lx\n", __func__, - buf->area, buf->bytes); - - return 0; -} - -static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm) -{ - struct snd_pcm_substream *substream; - struct snd_dma_buffer *buf; - int stream; - - for (stream = 0; stream < 2; stream++) { - substream = pcm->streams[stream].substream; - if (!substream) - continue; - - buf = &substream->dma_buffer; - if (!buf->area) - continue; - dma_free_coherent(NULL, buf->bytes, buf->area, 0); - buf->area = NULL; - } -} - static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32); static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd) { struct snd_card *card = rtd->card->snd_card; - struct snd_pcm *pcm = rtd->pcm; - int ret = 0; + size_t size = bf5xx_pcm_hardware.buffer_bytes_max; pr_debug("%s enter\n", __func__); if (!card->dev->dma_mask) @@ -265,27 +222,13 @@ static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd) if (!card->dev->coherent_dma_mask) card->dev->coherent_dma_mask = DMA_BIT_MASK(32); - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { - ret = bf5xx_pcm_preallocate_dma_buffer(pcm, - SNDRV_PCM_STREAM_PLAYBACK); - if (ret) - goto out; - } - - if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { - ret = bf5xx_pcm_preallocate_dma_buffer(pcm, - SNDRV_PCM_STREAM_CAPTURE); - if (ret) - goto out; - } - out: - return ret; + return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, + SNDRV_DMA_TYPE_DEV, card->dev, size, size); } static struct snd_soc_platform_driver bf5xx_i2s_soc_platform = { .ops = &bf5xx_pcm_i2s_ops, .pcm_new = bf5xx_pcm_i2s_new, - .pcm_free = bf5xx_pcm_free_dma_buffers, }; static int bfin_i2s_soc_platform_probe(struct platform_device *pdev) |