Hi Marek
Thank you for your test. And so sorry to bother you. I will fixup this issue.
I have no idea so far, but one capability is that if your system used / based dummy platform, and if your CPU driver didn't use/have snd_soc_set_runtime_hwparams() / snd_pcm_lib_ioctl, it might be happen, but this patch seems not related to it...
Reverting this patch fixes the issue, so it is definitely related somehow.
Ahh... OK now I think I could understand your issue. Your CPU is using devm_snd_dmaengine_pcm_register() with same *dev. In such case, indeed this patch breaks sound card.
Can I confirm it ? In local email, I asked printing component name list. Can you please replace it to below ? I think disappear component is "snd_dmaengine_pcm". If so, above my patch is the bug.
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4cd77cd..4b1f8ae 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -313,6 +313,7 @@ static int snd_soc_rtdcom_add(struct snd_soc_pcm_runtime *rtd, new_rtdcom->component = component; INIT_LIST_HEAD(&new_rtdcom->list);
printk("-----%s : %s\n", component->name, component->driver->name); list_add_tail(&new_rtdcom->list, &rtd->component_list);
return 0;
Thank you for your help !!
pure next-20190624:
[ 3.549712] -----3830000.i2s : samsung-i2s [ 3.767732] -----max98095.7-0011 : (null) [ 3.986370] -----hdmi-audio-codec.3.auto : (null)
next-20190624 + Revert "ASoC: samsung: snow: don't select unnecessary Platform":
[ 3.508391] -----3830000.i2s : samsung-i2s [ 3.726332] -----max98095.7-0011 : (null) [ 3.944906] -----hdmi-audio-codec.3.auto : (null) [ 4.376639] -----3830000.i2s : snd_dmaengine_pcm
Best regards
Marek Szyprowski, PhD Samsung R&D Institute Poland