I am also having this issue with the keyboard stopping after sleep.   
5.15.0-102 kernel.
I have found by putting this line in grub I can make it work, however I lose 
the num lock light, only light on the keyboard.

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.dumbkbd=1 i8042.nomux=1
i8042.noaux=1"

I can't get a reliable test deleting one of the 'nomux' or 'noaux', just
seems that all 3 make things work.   Shouldn't have to patch like this
and I would really like the light back on.

Do you believe the patch above will fix this too.

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https://bugs.launchpad.net/bugs/2056743

Title:
  Keyboard stops working after suspend on Dell XPS 13

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