diff options
Diffstat (limited to 'sound/soc/soc-pcm.c')
| -rw-r--r-- | sound/soc/soc-pcm.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index aa99dac31b3b..60d702f8b9f0 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1287,6 +1287,46 @@ static int widget_in_list(struct snd_soc_dapm_widget_list *list, return 0; } +static bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, + enum snd_soc_dapm_direction dir) +{ + struct snd_soc_card *card = widget->dapm->card; + struct snd_soc_pcm_runtime *rtd; + int i; + + if (dir == SND_SOC_DAPM_DIR_OUT) { + list_for_each_entry(rtd, &card->rtd_list, list) { + if (!rtd->dai_link->no_pcm) + continue; + + if (rtd->cpu_dai->playback_widget == widget) + return true; + + for (i = 0; i < rtd->num_codecs; ++i) { + struct snd_soc_dai *dai = rtd->codec_dais[i]; + if (dai->playback_widget == widget) + return true; + } + } + } else { /* SND_SOC_DAPM_DIR_IN */ + list_for_each_entry(rtd, &card->rtd_list, list) { + if (!rtd->dai_link->no_pcm) + continue; + + if (rtd->cpu_dai->capture_widget == widget) + return true; + + for (i = 0; i < rtd->num_codecs; ++i) { + struct snd_soc_dai *dai = rtd->codec_dais[i]; + if (dai->capture_widget == widget) + return true; + } + } + } + + return false; +} + int dpcm_path_get(struct snd_soc_pcm_runtime *fe, int stream, struct snd_soc_dapm_widget_list **list) { @@ -1294,7 +1334,8 @@ int dpcm_path_get(struct snd_soc_pcm_runtime *fe, int paths; /* get number of valid DAI paths and their widgets */ - paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list); + paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, + dpcm_end_walk_at_be); dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, stream ? "capture" : "playback"); |