ASoC: SOF: topology: set trigger order for FE DAI link

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.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index e0e2ae7..e707669 100644 (file)
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -2951,6 +2951,10 @@ 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;
        }