A router component can be added as an auxiliary device to the sound card to help with audio routing across multiple components. DPCM dai links use CPU<->Dummy or Dummy<->Codec style of links in simple-card driver and hence do not have required DAI connections by default. Usually machine driver can do the necessary mapping.
But if there is a crossbar switch HW which can connect multiple components, it is expected to provide required user space configurability via MUX controls. In such a case the crossbar can be represented as an independent component and can be added as an auxiliary device. The exposed routing interfaces can be used by other components in the system, thus probing it first can avoid probe failures.
Signed-off-by: Sameer Pujar spujar@nvidia.com --- sound/soc/soc-core.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 8faca60..9041a03 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1850,19 +1850,19 @@ static int snd_soc_bind_card(struct snd_soc_card *card) if (ret < 0) goto probe_end;
- /* probe all components used by DAI links on this card */ - ret = soc_probe_link_components(card); + /* probe auxiliary components */ + ret = soc_probe_aux_devices(card); if (ret < 0) { dev_err(card->dev, - "ASoC: failed to instantiate card %d\n", ret); + "ASoC: failed to probe aux component %d\n", ret); goto probe_end; }
- /* probe auxiliary components */ - ret = soc_probe_aux_devices(card); + /* probe all components used by DAI links on this card */ + ret = soc_probe_link_components(card); if (ret < 0) { dev_err(card->dev, - "ASoC: failed to probe aux component %d\n", ret); + "ASoC: failed to instantiate card %d\n", ret); goto probe_end; }