Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/Series1/EFM32GG12B/EFM32GG12B310F1024GQ100/LCD/BIASCTRL#0x0
Analog BIAS Control
SPEED Adjustment
Buffer Drive Strength
Buffer Bias Setting
https://github.com/cmsis-svd/cmsis-svd-data