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greybus: audio: Reorganize sequence in GB audio bundle & codec driver

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Modify sequence of register_module & unregister_module in bundle
driver. This would affect the uevent generated for above user
space. Accordingly, we need to modify snd_soc_xxx sequence in
register_module() in codec driver.

Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Vaibhav Agarwal
2016-05-04 16:29:22 +05:30
committed by Greg Kroah-Hartman
parent 852859ab81
commit bb9986ef6b
2 changed files with 26 additions and 29 deletions
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34
drivers/staging/greybus/audio_codec.c
View File

@@ -963,27 +963,27 @@ int gbaudio_register_module(struct gbaudio_module_info *module)
/* card already instantiated, create widgets here only */
if (codec->card->instantiated) {
ret = snd_soc_dapm_new_widgets(&codec->dapm);
if (!ret)
snd_soc_dapm_link_component_dai_widgets(codec->card,
&codec->dapm);
}
snd_soc_dapm_link_component_dai_widgets(codec->card,
&codec->dapm);
#ifdef CONFIG_SND_JACK
/* register jack devices for this module from codec->jack_list */
list_for_each_entry(jack, &codec->jack_list, list) {
if ((jack == &module->headset_jack)
|| (jack == &module->button_jack))
snd_device_register(codec->card->snd_card, jack->jack);
}
/* register jack devices for this module from codec->jack_list */
list_for_each_entry(jack, &codec->jack_list, list) {
if ((jack == &module->headset_jack)
|| (jack == &module->button_jack))
snd_device_register(codec->card->snd_card,
jack->jack);
}
#endif
}
list_add(&module->list, &gbcodec->module_list);
if (codec->card->instantiated)
ret = snd_soc_dapm_new_widgets(&codec->dapm);
dev_dbg(codec->dev, "Registered %s module\n", module->name);
mutex_unlock(&gbcodec->lock);
up_write(&card->controls_rwsem);
return 0;
return ret;
}
EXPORT_SYMBOL(gbaudio_register_module);
@@ -1060,11 +1060,10 @@ void gbaudio_unregister_module(struct gbaudio_module_info *module)
dev_dbg(codec->dev, "Unregister %s module\n", module->name);
/* complete widget processing, if ongoing */
snd_soc_dapm_sync(&codec->dapm);
down_write(&card->controls_rwsem);
mutex_lock(&gbcodec->lock);
gbaudio_codec_cleanup(module);
list_del(&module->list);
dev_dbg(codec->dev, "Process Unregister %s module\n", module->name);
#ifdef CONFIG_SND_JACK
@@ -1078,8 +1077,6 @@ void gbaudio_unregister_module(struct gbaudio_module_info *module)
}
#endif
gbaudio_codec_cleanup(module);
if (module->dapm_routes) {
dev_dbg(codec->dev, "Removing %d routes\n",
module->num_dapm_routes);
@@ -1099,7 +1096,6 @@ void gbaudio_unregister_module(struct gbaudio_module_info *module)
module->num_dapm_widgets);
}
list_del(&module->list);
dev_dbg(codec->dev, "Unregistered %s module\n", module->name);
mutex_unlock(&gbcodec->lock);

21
drivers/staging/greybus/audio_module.c
View File

@@ -308,18 +308,22 @@ static int gb_audio_probe(struct gb_bundle *bundle,
}
gbmodule->topology = topology;
/* register module with gbcodec */
ret = gbaudio_register_module(gbmodule);
if (ret)
goto release_topology;
/* Initialize data connections */
list_for_each_entry(dai, &gbmodule->data_list, list) {
ret = gb_connection_enable(dai->connection);
if (ret)
if (ret) {
dev_err(dev,
"%d:Error while enabling %d:data connection\n",
ret, dai->data_cport);
goto disable_data_connection;
}
}
/* register module with gbcodec */
ret = gbaudio_register_module(gbmodule);
if (ret)
goto disable_data_connection;
/* inform above layer for uevent */
dev_dbg(dev, "Inform set_event:%d to above layer\n", 1);
/* prepare for the audio manager */
@@ -339,9 +343,6 @@ static int gb_audio_probe(struct gb_bundle *bundle,
disable_data_connection:
list_for_each_entry_safe(dai, _dai, &gbmodule->data_list, list)
gb_connection_disable(dai->connection);
gbaudio_unregister_module(gbmodule);
release_topology:
gbaudio_tplg_release(gbmodule);
gbmodule->topology = NULL;
@@ -371,11 +372,11 @@ static void gb_audio_disconnect(struct gb_bundle *bundle)
struct gbaudio_module_info *gbmodule = greybus_get_drvdata(bundle);
struct gbaudio_data_connection *dai, *_dai;
gbaudio_unregister_module(gbmodule);
/* inform uevent to above layers */
gb_audio_manager_remove(gbmodule->manager_id);
gbaudio_unregister_module(gbmodule);
gbaudio_tplg_release(gbmodule);
gbmodule->topology = NULL;
kfree(gbmodule->topology);