ASoc / PCM recording-related regression between v5.4 and v5.5

Kuninori Morimoto kuninori.morimoto.gx at renesas.com
Tue Apr 20 00:35:25 CEST 2021


Hi Hin-Tak


> it was not setting .non_legacy_dai_naming - this was a 4.16 change . The similar hardware but working
> sibling device has one single ADC codec, while the broken device has two such ADC codec plus a 3rd DAC
> codec; I see that this flag started to matter in v5.6 for codec2codec links . I don't know if this
> qualifies as a codec 2 codec link - it is running two 4-mic ADC in parallel to read from 6 mics...
> 
> Anyway, I tried putting that flag in, but it has not fix problem with 5.10, so I am back to trimming
> the difference between v5.4 and v5.5 slowly.

v5.3 has other big change on ALSA SoC for each driver.
Out-of-tree might get this effect.

	ASoC: xxxx: use modern dai_link style

For example,
05ab66178cb27ee795aa458b43818d2caa2d3953
("ASoC: mediatek: mt8173-rt5650-rt5676: use modern dai_link style")

Thank you for your help !!

Best regards
---
Kuninori Morimoto


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