On Mon, Jul 03, 2023 at 09:48:34AM +0200, Johan Hovold wrote:
On Wed, Jun 28, 2023 at 10:24:04AM +0100, Srinivas Kandagatla wrote:
For some reason we ended up with a setup without this flag. This resulted in inconsistent sound card devices numbers which are also not starting as expected at dai_link->id. (Ex: MultiMedia1 pcm ended up with device number 4 instead of 0)
With this patch patch now the MultiMedia1 PCM ends up with device number 0 as expected.
This appears to fix the intermittent probe breakage that I see every five boots or so:
[ 11.843320] q6apm-dai 3000000.remoteproc:glink-edge:gpr:service@1:dais: Adding to iommu group 23 [ 11.867467] snd-sc8280xp sound: ASoC: adding FE link failed [ 11.867574] snd-sc8280xp sound: ASoC: topology: could not load header: -517 [ 11.867725] qcom-apm gprsvc:service:2:1: tplg component load failed-517 [ 11.867933] qcom-apm gprsvc:service:2:1: ASoC: error at snd_soc_component_probe on gprsvc:service:2:1: -22 [ 11.868379] snd-sc8280xp sound: ASoC: failed to instantiate card -22 [ 11.873645] snd-sc8280xp: probe of sound failed with error -22
and which I've reported here:
https://lore.kernel.org/lkml/ZIHMMFtuDtvdpFAZ@hovoldconsulting.com/
as unrelated changes in timings resulting from that series made the problem much harder (but not impossible) to hit.
With this fix, I've rebooted 20+ times without hitting the issue once.
I'm guessing that you found this issue while investigated that probe race, Srini? It does look related, and it does seem to make the problem go away, but I'm not comfortable claiming that the intermittent probe breakage has been resolved without some analysis to back that up.
Ok, scratch that. I just hit the race again also with this patch applied:
[ 11.815028] q6apm-dai 3000000.remoteproc:glink-edge:gpr:service@1:dais: Adding to iommu group 23 [ 11.838667] snd-sc8280xp sound: ASoC: adding FE link failed [ 11.838774] snd-sc8280xp sound: ASoC: topology: could not load header: -517 [ 11.838916] qcom-apm gprsvc:service:2:1: tplg component load failed-517 [ 11.838996] qcom-apm gprsvc:service:2:1: ASoC: error at snd_soc_component_probe on gprsvc:service:2:1: -22 [ 11.839430] snd-sc8280xp sound: ASoC: failed to instantiate card -22 [ 11.844801] snd-sc8280xp: probe of sound failed with error -22
Sorry about the noise.
Johan