ASoC: Export DAI register and widget ctor and dctor functions

To allow for more flexibility i.e. populating component DAIs dynamically
during its initialization, without being limited to topology loading
procedure, expose snd_soc_register(), snd_soc_dapm_new_dai_widgets() and
snd_soc_dapm_free_widget() functions.

Allows users to first check available resources e.g. number of PCMs
supported by HDAudio codec before allocating the number of DAPM
widgets needed. This prevents superfluous objects from being created or
allows driver to adjust to situation when resources are limited.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220311153544.136854-3-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index c3039e97929a5db27de8d6f86131a9910752d5ae..ebb8e7a7fc29e96c5fb08bfea48c0734335a7e26 100644 (file)
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -429,6 +429,7 @@ struct snd_soc_dapm_widget *snd_soc_dapm_new_control_unlocked(
                const struct snd_soc_dapm_widget *widget);
 int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
                                 struct snd_soc_dai *dai);
+void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w);
 int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card);
 void snd_soc_dapm_connect_dai_link_widgets(struct snd_soc_card *card);
 

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a088bc9f7dd7c33444f203d231d64f30d0f50725..ce153ac2c3ab6b95a307546596f14915f948391c 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2465,6 +2465,7 @@ struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component,
        dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
        return dai;
 }
+EXPORT_SYMBOL_GPL(snd_soc_register_dai);
 
 /**
  * snd_soc_unregister_dais - Unregister DAIs from the ASoC core

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index b06c5682445c0313c6caf7e1874f99bc158da712..b435b5c4cfb7d43af4835b9694eece04f0fe31fa 100644 (file)
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2484,6 +2484,12 @@ static void dapm_free_path(struct snd_soc_dapm_path *path)
        kfree(path);
 }
 
+/**
+ * snd_soc_dapm_free_widget - Free specified widget
+ * @w: widget to free
+ *
+ * Removes widget from all paths and frees memory occupied by it.
+ */
 void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w)
 {
        struct snd_soc_dapm_path *p, *next_p;
@@ -2506,6 +2512,7 @@ void snd_soc_dapm_free_widget(struct snd_soc_dapm_widget *w)
        kfree_const(w->sname);
        kfree(w);
 }
+EXPORT_SYMBOL_GPL(snd_soc_dapm_free_widget);
 
 void snd_soc_dapm_reset_cache(struct snd_soc_dapm_context *dapm)
 {
@@ -4208,6 +4215,13 @@ param_fail:
        return ERR_PTR(ret);
 }
 
+/**
+ * snd_soc_dapm_new_dai_widgets - Create new DAPM widgets
+ * @dapm: DAPM context
+ * @dai: parent DAI
+ *
+ * Returns 0 on success, error code otherwise.
+ */
 int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
                                 struct snd_soc_dai *dai)
 {
@@ -4253,6 +4267,7 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
 
        return 0;
 }
+EXPORT_SYMBOL_GPL(snd_soc_dapm_new_dai_widgets);
 
 int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
 {