Philipp Jungkamp's patch is already module in the new kernel release candidate linux-6.0-rc1.
For those who want to try it just compile the new kernel without patch and add in
/etc/modprobe.d/snd.conf
# use snd_hda_intel instead of snd_sof
options snd_intel_dspcfg dsp_driver=1
# enable the fixup
options snd_hda_intel model=alc287-yoga9-bass-spk-pin
Philipp Jungkamp's patch is already module in the new kernel release candidate linux-6.0-rc1. d/snd.conf
For those who want to try it just compile the new kernel without patch and add in
/etc/modprobe.
# use snd_hda_intel instead of snd_sof
options snd_intel_dspcfg dsp_driver=1
# enable the fixup yoga9-bass- spk-pin
options snd_hda_intel model=alc287-
Thank you and Congrats!