Current ASoC is specifying and checking DAI name. But where it came from and how to check was ambiguous. This patch adds snd_soc_dai_name_get() / snd_soc_dlc_dai_is_match() and makes it clear.
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc-dai.h | 2 ++ sound/soc/soc-core.c | 62 +++++++++++++++++++++++++++++++---------- 2 files changed, 49 insertions(+), 15 deletions(-)
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index e3906ecda740..a4538040e88d 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -271,6 +271,8 @@ int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai, struct snd_compr_stream *cstream, struct snd_compr_metadata *metadata);
+const char *snd_soc_dai_name_get(struct snd_soc_dai *dai); + struct snd_soc_dai_ops { /* * DAI clocking configuration, all optional. diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4b66c6d87fa2..bd811d10b792 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -253,6 +253,47 @@ static inline int snd_soc_dlc_dai_is_empty(struct snd_soc_dai_link_component *dl return !dlc->dai_name; }
+static int snd_soc_is_matching_dai(const struct snd_soc_dai_link_component *dlc, + struct snd_soc_dai *dai) +{ + if (!dlc) + return 0; + + if (!dlc->dai_name) + return 1; + + /* see snd_soc_dai_name_get() */ + + if (strcmp(dlc->dai_name, dai->name) == 0) + return 1; + + if (dai->driver->name && + strcmp(dai->driver->name, dlc->dai_name) == 0) + return 1; + + if (dai->component->name && + strcmp(dlc->dai_name, dai->component->name) == 0) + return 1; + + return 0; +} + +const char *snd_soc_dai_name_get(struct snd_soc_dai *dai) +{ + /* see snd_soc_is_matching_dai() */ + if (dai->name) + return dai->name; + + if (dai->driver->name) + return dai->driver->name; + + if (dai->component->name) + return dai->component->name; + + return NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_dai_name_get); + static int snd_soc_rtd_add_component(struct snd_soc_pcm_runtime *rtd, struct snd_soc_component *component) { @@ -810,18 +851,11 @@ struct snd_soc_dai *snd_soc_find_dai( lockdep_assert_held(&client_mutex);
/* Find CPU DAI from registered DAIs */ - for_each_component(component) { - if (!snd_soc_is_matching_component(dlc, component)) - continue; - for_each_component_dais(component, dai) { - if (dlc->dai_name && strcmp(dai->name, dlc->dai_name) - && (!dai->driver->name - || strcmp(dai->driver->name, dlc->dai_name))) - continue; - - return dai; - } - } + for_each_component(component) + if (snd_soc_is_matching_component(dlc, component)) + for_each_component_dais(component, dai) + if (snd_soc_is_matching_dai(dlc, dai)) + return dai;
return NULL; } @@ -3315,9 +3349,7 @@ int snd_soc_get_dlc(const struct of_phandle_args *args, struct snd_soc_dai_link_ }
dlc->of_node = args->np; - dlc->dai_name = dai->driver->name; - if (!dlc->dai_name) - dlc->dai_name = pos->name; + dlc->dai_name = snd_soc_dai_name_get(dai); } else if (ret) { /* * if another error than ENOTSUPP is returned go on and