From 4792b0dbcf3d41a19e76adc9c98c5cc889daa065 Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Mon, 28 Apr 2014 14:17:52 +0200 Subject: ASoC: core: Add support for machine specific trigger callback 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 Signed-off-by: Stefan Roese Signed-off-by: Mark Brown --- sound/soc/soc-pcm.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'sound/soc/soc-pcm.c') diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 2cedf09f6d96..a3a70214edee 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -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; } -- cgit v1.2.3