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ASoC: Support registering a DAI dynamically

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Define API snd_soc_register_dai() to add a DAI dynamically and
create the DAI widgets. Topology can use this API to register DAIs
when probing a component with topology info. These DAIs's playback
& capture widgets will be freed when the sound card is unregistered
and the DAIs will be freed when cleaning up the component.

And a dobj is embedded into the struct snd_soc_dai_driver. Topology
can use the dobj to find the DAI drivers created by it and free them
when the topology component is removed.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mengdong Lin
2015-12-31 16:40:43 +08:00
committed by Mark Brown
parent 5e4fb37211
commit 68003e6cf2
3 changed files with 46 additions and 0 deletions
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3
include/sound/soc.h
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@@ -1663,6 +1663,9 @@ int snd_soc_add_dai_link(struct snd_soc_card *card,
void snd_soc_remove_dai_link(struct snd_soc_card *card,
struct snd_soc_dai_link *dai_link);
int snd_soc_register_dai(struct snd_soc_component *component,
struct snd_soc_dai_driver *dai_drv);
#include <sound/soc-dai.h>
#ifdef CONFIG_DEBUG_FS