I really doubt thats even possible, many hw manufactors does not even give out full techspec for theyr hw that makes it impossible write open drivers!

Now thats why libhybris exists... Because even if Canonical/Jolla want native Linux drivers they can't write them and instead have to use closed Android drivers. Remember that open plasmatablet? how much problem they got with hwmanufactor...

Especially all those new asian companys are bad on writing techspec.