Could you please confirm that HDCP_REPT_EDID_RESET=1 will make 7850 reload EDID from EPROM?
What part do you refer to? Usually on most of our parts we have load- and store- registers allowing to respectively read from SPI eeprom to internal RAM and to write from RAM to SPI eeprom. You need also to take care of HPD pulsing so plugged in HDMI source is aware of change.
I believe that HDCP_REPT_EDID_RESET should also read EDID from external SPI eeprom but it resets all HDCP internals, and it is generally not a good practice.
Retrieving data ...