From: Mengdong Lin mengdong.lin@intel.com

Probing components can bring new DAI or DAI links based on the topology info. This patch finds the unbound DAI links and bind them.

Signed-off-by: Mengdong Lin mengdong.lin@intel.com

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index f552fa0..2818709 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1169,6 +1169,19 @@ static void soc_remove_dai_links(struct snd_soc_card *card) } }

+static bool soc_is_dai_link_bound(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link) +{ + struct snd_soc_pcm_runtime *rtd; + + list_for_each_entry(rtd, &card->rtd_list, list) { + if (rtd->dai_link == dai_link) + return true; + } + + return false; +} + static int snd_soc_init_multicodec(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { @@ -1763,6 +1776,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) { struct snd_soc_codec *codec; struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai_link *dai_link; int ret, i, order;

mutex_lock(&client_mutex); @@ -1853,6 +1867,21 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* no longer need dummy runtimes */ soc_remove_dummy_pcm_runtimes(card);

+ /* Find new DAI links added during probing components and bind them. + * Components with topology may bring new DAIs and DAI links. + */ + list_for_each_entry(dai_link, &card->dai_link_list, list) { + if (dai_link->dummy || soc_is_dai_link_bound(card, dai_link)) + continue; + + ret = soc_init_dai_link(card, dai_link); + if (ret) + goto probe_dai_err; + ret = soc_bind_dai_link(card, dai_link); + if (ret) + goto probe_dai_err; + } + /* probe all DAI links on this card */ for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST; order++) {