Hello,

I've found that dsi_it is missing in both stm32h747cm4 and stm32h747cm7 implementation.

reference manual: https://www.st.com/resource/en/reference_manual/rm0399-stm32h745755-and-stm32h747757-advanced-armbased-32bit-mcus-stmicroelectronics.pdf
(grep for 'dsi_it'). It should have number 123, currently this number is just unassigned.