From: Bard Liao yung-chuan.liao@linux.intel.com
Currently, when connecting a DAI widget to the BE CPU DAI, we overwrite the previous connections. This worked because we only ever had 1 CPU DAI for each rtd until now. But with multiple CPU DAI's, a new connection between a BE CPU DAI and the DAI widget should be established without affecting the previous connections. So, modify the loop to set the playback/capture widget for the first BE CPU DAI that does not have a connection established previously.
Fixes: 4a7e26a4d833 ("ASoC: SOF: topology: connect dai widget to all cpu-dais")
Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Kai Vehmanen kai.vehmanen@linux.intel.com Reviewed-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/topology.c | 38 ++++++++++++++++++++++++++++++++++---- 1 file changed, 34 insertions(+), 4 deletions(-)
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index fe8ba3e05e08..3386886fd743 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -1257,15 +1257,45 @@ static int sof_connect_dai_widget(struct snd_soc_component *scomp,
switch (w->id) { case snd_soc_dapm_dai_out: - for_each_rtd_cpu_dais(rtd, i, cpu_dai) - cpu_dai->capture_widget = w; + for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + /* + * Please create DAI widget in the right order + * to ensure BE will connect to the right DAI + * widget. + */ + if (!cpu_dai->capture_widget) { + cpu_dai->capture_widget = w; + break; + } + } + if (i == rtd->num_cpus) { + dev_err(scomp->dev, "error: can't find BE for DAI %s\n", + w->name); + + return -EINVAL; + } dai->name = rtd->dai_link->name; dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n", w->name, rtd->dai_link->name); break; case snd_soc_dapm_dai_in: - for_each_rtd_cpu_dais(rtd, i, cpu_dai) - cpu_dai->playback_widget = w; + for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + /* + * Please create DAI widget in the right order + * to ensure BE will connect to the right DAI + * widget. + */ + if (!cpu_dai->playback_widget) { + cpu_dai->playback_widget = w; + break; + } + } + if (i == rtd->num_cpus) { + dev_err(scomp->dev, "error: can't find BE for DAI %s\n", + w->name); + + return -EINVAL; + } dai->name = rtd->dai_link->name; dev_dbg(scomp->dev, "tplg: connected widget %s -> DAI link %s\n", w->name, rtd->dai_link->name);