How to use Raspberry Pi Touch Display with STM32F769i-DISCO using B-LCDAD-RPI1?

[TDJ]

This question was asked before 5 or 6 times but no meaningful answer was provided.

How to use B-LCDAD-RPI1 MIPI-DSI adapter and Raspberry Pi LCD?

Any pointers appreciated.

@clive1: Note, this has nothing to do with HDMI.