ASoC: soc-core: don't call snd_soc_dapm_new_dai_widgets() at snd_soc_register_dai()

ALSA SoC has 2 functions.
snd_soc_register_dai()  is used from topology
snd_soc_register_dais() is used from snd_soc_add_component()

In general, people think like _dai() is called from _dais()
with for loop. But in reality, these are very similar
but different implementation.
We shouldn't have duplicated and confusing implementation.

snd_soc_register_dai() is now used from topology.
But to reduce duplicated code, it should be used from _dais(), too.

Because of topology side specific reason,
it is calling snd_soc_dapm_new_dai_widgets(),
but it is not needed _dais() side.

This patch factorizes snd_soc_register_dai() to
topology / _dais() common part, and topology specific part.
And do topology specific part at soc-topology.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87sgn2251p.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 766fa81..4e38ee6 100644 (file)
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1326,9 +1326,9 @@ struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
                                               int id, const char *name,
                                               const char *stream_name);
 
-int snd_soc_register_dai(struct snd_soc_component *component,
-                        struct snd_soc_dai_driver *dai_drv,
-                        bool legacy_dai_naming);
+struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component,
+                                        struct snd_soc_dai_driver *dai_drv,
+                                        bool legacy_dai_naming);
 void snd_soc_unregister_dai(struct snd_soc_dai *dai);
 
 struct snd_soc_dai *snd_soc_find_dai(

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6f4933f..55b13c0 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2603,37 +2603,18 @@ EXPORT_SYMBOL_GPL(snd_soc_unregister_dai);
  * These DAIs's widgets will be freed in the card cleanup and the DAIs
  * will be freed in the component cleanup.
  */
-int snd_soc_register_dai(struct snd_soc_component *component,
-                        struct snd_soc_dai_driver *dai_drv,
-                        bool legacy_dai_naming)
+struct snd_soc_dai *snd_soc_register_dai(struct snd_soc_component *component,
+                                        struct snd_soc_dai_driver *dai_drv,
+                                        bool legacy_dai_naming)
 {
-       struct snd_soc_dapm_context *dapm =
-               snd_soc_component_get_dapm(component);
-       struct snd_soc_dai *dai;
-       int ret;
-
        if (dai_drv->dobj.type != SND_SOC_DOBJ_PCM) {
                dev_err(component->dev, "Invalid dai type %d\n",
                        dai_drv->dobj.type);
-               return -EINVAL;
+               return NULL;
        }
 
        lockdep_assert_held(&client_mutex);
-       dai = soc_add_dai(component, dai_drv, legacy_dai_naming);
-       if (!dai)
-               return -ENOMEM;
-
-       /*
-        * Create the DAI widgets here. After adding DAIs, topology may
-        * also add routes that need these widgets as source or sink.
-        */
-       ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
-       if (ret != 0) {
-               dev_err(component->dev,
-                       "Failed to create DAI widgets %d\n", ret);
-       }
-
-       return ret;
+       return soc_add_dai(component, dai_drv, legacy_dai_naming);
 }
 EXPORT_SYMBOL_GPL(snd_soc_register_dai);
 

diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index b6e1456..81d2af0 100644 (file)
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1800,6 +1800,9 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
        struct snd_soc_dai_driver *dai_drv;
        struct snd_soc_pcm_stream *stream;
        struct snd_soc_tplg_stream_caps *caps;
+       struct snd_soc_dai *dai;
+       struct snd_soc_dapm_context *dapm =
+               snd_soc_component_get_dapm(tplg->comp);
        int ret;
 
        dai_drv = kzalloc(sizeof(struct snd_soc_dai_driver), GFP_KERNEL);
@@ -1842,7 +1845,19 @@ static int soc_tplg_dai_create(struct soc_tplg *tplg,
        list_add(&dai_drv->dobj.list, &tplg->comp->dobj_list);
 
        /* register the DAI to the component */
-       return snd_soc_register_dai(tplg->comp, dai_drv, false);
+       dai = snd_soc_register_dai(tplg->comp, dai_drv, false);
+       if (!dai)
+               return -ENOMEM;
+
+       /* Create the DAI widgets here */
+       ret = snd_soc_dapm_new_dai_widgets(dapm, dai);
+       if (ret != 0) {
+               dev_err(dai->dev, "Failed to create DAI widgets %d\n", ret);
+               snd_soc_unregister_dai(dai);
+               return ret;
+       }
+
+       return ret;
 }
 
 static void set_link_flags(struct snd_soc_dai_link *link,