From: Ranjani Sridharan ranjani.sridharan@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@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20191104224812.3393-3-ranjani.sridharan@linux.inte... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@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; }