Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/Silicon Labs/EFR32MG24A120F1536GM48/CMU_S/IADCCLKCTRL#0x0
No Description
Clock Select
1 (EM01GRPACLK): EM01GRPACLK is clocking IADCCLK
2 (FSRCO): FSRCO is clocking IADCCLK
3 (HFRCOEM23): HFRCOEM23 is clocking IADCCLK
https://github.com/cmsis-svd/cmsis-svd-data