Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32f4/STM32F410/RCC/DCKCFGR2#0x0
DCKCFGR2 register
I2C4SEL
LPTIM1SEL
https://github.com/modm-io/cmsis-svd-stm32