diff options
Diffstat (limited to 'kernel/sound/soc/fsl/imx-pcm-dma.c')
| -rw-r--r-- | kernel/sound/soc/fsl/imx-pcm-dma.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/kernel/sound/soc/fsl/imx-pcm-dma.c b/kernel/sound/soc/fsl/imx-pcm-dma.c index 0db94f492..1fc01ed32 100644 --- a/kernel/sound/soc/fsl/imx-pcm-dma.c +++ b/kernel/sound/soc/fsl/imx-pcm-dma.c @@ -40,7 +40,7 @@ static const struct snd_pcm_hardware imx_pcm_hardware = { SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME, - .buffer_bytes_max = IMX_SSI_DMABUF_SIZE, + .buffer_bytes_max = IMX_DEFAULT_DMABUF_SIZE, .period_bytes_min = 128, .period_bytes_max = 65535, /* Limited by SDMA engine */ .periods_min = 2, @@ -52,13 +52,30 @@ static const struct snd_dmaengine_pcm_config imx_dmaengine_pcm_config = { .pcm_hardware = &imx_pcm_hardware, .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, .compat_filter_fn = filter, - .prealloc_buffer_size = IMX_SSI_DMABUF_SIZE, + .prealloc_buffer_size = IMX_DEFAULT_DMABUF_SIZE, }; -int imx_pcm_dma_init(struct platform_device *pdev) +int imx_pcm_dma_init(struct platform_device *pdev, size_t size) { + struct snd_dmaengine_pcm_config *config; + struct snd_pcm_hardware *pcm_hardware; + + config = devm_kzalloc(&pdev->dev, + sizeof(struct snd_dmaengine_pcm_config), GFP_KERNEL); + *config = imx_dmaengine_pcm_config; + if (size) + config->prealloc_buffer_size = size; + + pcm_hardware = devm_kzalloc(&pdev->dev, + sizeof(struct snd_pcm_hardware), GFP_KERNEL); + *pcm_hardware = imx_pcm_hardware; + if (size) + pcm_hardware->buffer_bytes_max = size; + + config->pcm_hardware = pcm_hardware; + return devm_snd_dmaengine_pcm_register(&pdev->dev, - &imx_dmaengine_pcm_config, + config, SND_DMAENGINE_PCM_FLAG_COMPAT); } EXPORT_SYMBOL_GPL(imx_pcm_dma_init); |