diff options
| author | Mark Brown <broonie@linaro.org> | 2013-06-26 12:45:59 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-06-27 09:48:42 +0100 |
| commit | b047e1cce8fe32475ab61846772943a5e4c0a908 (patch) | |
| tree | 9d04d8101d161b96f96c2e2e5bd03900011828ec /sound/soc/soc-core.c | |
| parent | b49dff8cb61cd4715991612e2eb6905b73a0be78 (diff) | |
ASoC: ac97: Support multi-platform AC'97
Currently we can only have a single platform built in with AC'97 support
due to the use of a global variable to provide the bus operations. Fix
this by making that variable a pointer and having the bus drivers set the
operations prior to registering.
This is not a particularly good or nice approach but it avoids blocking
multiplatform and a real fix involves fixing the fairly deep problems
with AC'97 support - we should be converting it to a real bus.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d56bbea6e75..562d72e04e6 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2079,6 +2079,22 @@ int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, } EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec); +struct snd_ac97_bus_ops *soc_ac97_ops; + +int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops) +{ + if (ops == soc_ac97_ops) + return 0; + + if (soc_ac97_ops && ops) + return -EBUSY; + + soc_ac97_ops = ops; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops); + /** * snd_soc_free_ac97_codec - free AC97 codec device * @codec: audio codec |