Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/STMicroelectronics/STM32H7x7_CM4/RCC/APB3ENR#0x0
RCC APB3 Clock Register
LTDC peripheral clock enable
DSI Peripheral Clocks Enable
WWDG1 Clock Enable
https://github.com/cmsis-svd/cmsis-svd-data