From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
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@xxxxxxxxxxx>
---
include/sound/soc.h | 6 +++---
sound/soc/soc-core.c | 25 ++++++-------------------
sound/soc/soc-topology.c | 17 ++++++++++++++++-
3 files changed, 25 insertions(+), 23 deletions(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 766fa81..4e38ee6 100644
--- 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 7bd38fb..8045f4f 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2606,37 +2606,24 @@ 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 NULL;
- return ret;
+ return dai;
}
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
--- 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,
--
2.7.4
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