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ASoC: core: Add support for machine specific trigger callback

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Machine specific trigger callback allows to do final stream start/stop
related operations in a machine driver after setting up the codec, DMA and
DAI.

One example could be clock management for linked streams case where machine
driver can start/stop synchronously the linked streams.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Jarkko Nikula 2014-04-28 14:17:52 +02:00 committed by Mark Brown
parent c9eaa447e7
commit 4792b0dbcf
1 changed files with 7 additions and 0 deletions
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7
sound/soc/soc-pcm.c
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@ -819,6 +819,13 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
if (ret < 0)
return ret;
}
if (rtd->dai_link->ops && rtd->dai_link->ops->trigger) {
ret = rtd->dai_link->ops->trigger(substream, cmd);
if (ret < 0)
return ret;
}
return 0;
}