Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32BG22C224F512GM32/GPIO_S/CMU_ROUTEEN#0x0
CMU pin enable
CLKOUT0 pin enable control bit
CLKOUT1 pin enable control bit
CLKOUT2 pin enable control bit
https://github.com/cmsis-svd/cmsis-svd-data