diff options
Diffstat (limited to 'sound/soc/soc-utils.c')
| -rw-r--r-- | sound/soc/soc-utils.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c index f67e715a9f42..e3b9dd634c6d 100644 --- a/sound/soc/soc-utils.c +++ b/sound/soc/soc-utils.c @@ -262,6 +262,26 @@ static const struct snd_pcm_hardware dummy_dma_hardware = { .periods_max = 128, }; +static int dummy_dma_open(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + + /* BE's dont need dummy params */ + if (!rtd->dai_link->no_pcm) + snd_soc_set_runtime_hwparams(substream, &dummy_dma_hardware); + + return 0; +} + +static const struct snd_pcm_ops snd_dummy_dma_ops = { + .open = dummy_dma_open, + .ioctl = snd_pcm_lib_ioctl, +}; + +static const struct snd_soc_component_driver dummy_platform = { + .ops = &snd_dummy_dma_ops, +}; + static const struct snd_soc_component_driver dummy_codec = { .idle_bias_on = 1, .use_pmdown_time = 1, @@ -319,6 +339,11 @@ static int snd_soc_dummy_probe(struct platform_device *pdev) ret = devm_snd_soc_register_component(&pdev->dev, &dummy_codec, &dummy_dai, 1); + if (ret < 0) + return ret; + + ret = devm_snd_soc_register_component(&pdev->dev, &dummy_platform, + NULL, 0); return ret; } |