ASoC: topology: Add topology core

The topology core parses the FW topology file for known block types and
instanciates any common ALSA/ASoC objects that it discovers. The core
also passes any block that is does not understand to client component
drivers for enumeration.

The core exports some APIs to client drivers in order to load and unload
firmware topology data as use case require.

Currently the core deals with the following object types :-

 o kcontrols. This includes TLV, enumerated and bytes controls.
 o DAPM widgets. All types with any associated kcontrol.
 o DAPM graph.
 o FE PCM. FE PCM capabilities and configuration can be defined.
 o BE DAI Link. BE DAI link capabilities and configuration can be defined.
 o Codec <-> codec style links capabilities and configuration.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 95b5f034d864..8fafdca5cdf5 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -40,6 +40,7 @@
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/soc-dpcm.h>
+#include <sound/soc-topology.h>
 #include <sound/initval.h>
 
 #define CREATE_TRACE_POINTS
@@ -2422,6 +2423,7 @@ int snd_soc_register_card(struct snd_soc_card *card)
 		card->rtd_aux[i].card = card;
 
 	INIT_LIST_HEAD(&card->dapm_dirty);
+	INIT_LIST_HEAD(&card->dobj_list);
 	card->instantiated = 0;
 	mutex_init(&card->mutex);
 	mutex_init(&card->dapm_mutex);
@@ -2736,6 +2738,7 @@ static void snd_soc_component_add_unlocked(struct snd_soc_component *component)
 	}
 
 	list_add(&component->list, &component_list);
+	INIT_LIST_HEAD(&component->dobj_list);
 }
 
 static void snd_soc_component_add(struct snd_soc_component *component)
@@ -2812,6 +2815,7 @@ void snd_soc_unregister_component(struct device *dev)
 	return;
 
 found:
+	snd_soc_tplg_component_remove(cmpnt, SND_SOC_TPLG_INDEX_ALL);
 	snd_soc_component_del_unlocked(cmpnt);
 	mutex_unlock(&client_mutex);
 	snd_soc_component_cleanup(cmpnt);