[alsa-devel] [PATCH AUTOSEL 5.4 208/350] ASoC: SOF: topology: set trigger order for FE DAI link

[Sasha Levin]

From: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>

[ Upstream commit 5eee2b3f60065a2530d13f28e771be48b989eb4c ]

Set trigger order for FE DAI links to SND_SOC_DPCM_TRIGGER_POST
to trigger the BE DAI's before the FE DAI's. This prevents the
xruns seen on playback pipelines using the link DMA.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Link: https://lore.kernel.org/r/20191104224812.3393-3-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 sound/soc/sof/topology.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 4452594c2e17a..fa299e0781561 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -2828,6 +2828,10 @@ static int sof_link_load(struct snd_soc_component *scomp, int index,
 	if (!link->no_pcm) {
 		link->nonatomic = true;
 
+		/* set trigger order */
+		link->trigger[0] = SND_SOC_DPCM_TRIGGER_POST;
+		link->trigger[1] = SND_SOC_DPCM_TRIGGER_POST;
+
 		/* nothing more to do for FE dai links */
 		return 0;
 	}
-- 
2.20.1