Comment # 86 on bug 1201418 from Takashi Iwai

I contacted with Cirrus and they confirmed the regression.  They'll investigate
it.

Also, about the Steam Deck audio problem itself: there is still one feature
missing in the upstream that was in the Steam's kernel.  It's not in 6.1 yet,
so it'd be 6.2 or later that can support the sound fully on Steam Deck.