dpcm_end_walk_at_be() stops the graph walk when first BE is found for the given FE component. In a component model we may want to connect multiple DAIs from different components. A new flag is introduced in 'snd_soc_card', which when set allows DAI/component chaining. Later PCM operations can be called for all these listed components for a valid DAPM path.
Signed-off-by: Sameer Pujar spujar@nvidia.com --- include/sound/soc.h | 1 + sound/soc/soc-pcm.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h index 3b038c5..9b69d70 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1084,6 +1084,7 @@ struct snd_soc_card { unsigned int fully_routed:1; unsigned int disable_route_checks:1; unsigned int probed:1; + unsigned int component_chaining:1;
void *drvdata; }; diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 09e8d70..25904b8 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1283,7 +1283,8 @@ int dpcm_path_get(struct snd_soc_pcm_runtime *fe,
/* get number of valid DAI paths and their widgets */ paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, - dpcm_end_walk_at_be); + fe->card->component_chaining ? + NULL : dpcm_end_walk_at_be);
dev_dbg(fe->dev, "ASoC: found %d audio %s paths\n", paths, stream ? "capture" : "playback");