Hi user32489,
Good to see Sound card got registered, the next issue was related to DAPM routing which needs minor correction in the routing, the order of entry misplaced in previous comment. Do the below change.
nvidia,audio-routing =
“x Headphone”, “x LOUT1”,
“x LINPUT1”, “x Mic”,
“x Headphone”, “x ROUT1”,
“x RINPUT1”, “x Mic”,
“y Headphone”, “y OUT”,
“y IN”, “y Mic”,
“a IN”, “a Mic”,
“b IN”, “b Mic”;