Fail to build latest drivers

Hi,
i fail to build the latest drivers:
Any advise?
I did like i did it several times before... (instructions from here: https://github.com/tbsdtv/linux_media/wiki). The offline drivers also don't install with a different error message
Thank you
i fail to build the latest drivers:
- Code: Select All Code
Building modules, stage 2.
MODPOST 725 modules
ERROR: "__devm_regmap_init_sccb" [/home/user/TBS/media_build/v4l/ov9650.ko] undefined!
make[4]: *** [/usr/src/linux-headers-5.3.0-0.bpo.2-common/scripts/Makefile.modpost:103: modules-modpost] Error 1
make[3]: *** [/usr/src/linux-headers-5.3.0-0.bpo.2-common/Makefile:1643: modules] Error 2
make[2]: *** [/usr/src/linux-headers-5.3.0-0.bpo.2-common/Makefile:179: sub-make] Error 2
make[2]: Leaving directory '/usr/src/linux-headers-5.3.0-0.bpo.2-amd64'
make[1]: *** [Makefile:53: default] Error 2
make[1]: Leaving directory '/home/loot/TBS/media_build/v4l'
make: *** [Makefile:26: all] Error 2
Any advise?
I did like i did it several times before... (instructions from here: https://github.com/tbsdtv/linux_media/wiki). The offline drivers also don't install with a different error message
Thank you