PSA: to make the headset jack work on Linux on the LattePanda (on a recent Linux kernel), add `snd_soc_rt5645.quirk=0x31` to the kernel command line. I'll submit a patch to add this to the DMI quirks list.
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alsaucm magic to set required mixer controls:
A=AMICorporation-Defaultstring-Defaultstring-CherryTrailCR
C=chtrt5645
cd /usr/share/alsa/ucm/
mkdir $A
ln -s ../$C/HiFi.conf $A/HiFi.conf
ln -s ../$C/$C.conf $A/$A.conf
alsaucm -c chtrt5645 set _verb HiFi set _enadev Headphone
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