Hi, I knew the display port(ZCU104) implements by drm.py which links to Linux - Direct Rendering Manager(DRM) subsystem, and the DRM includes the HDMI interface too.
So, why does HDMI need to use base overlay to implement on example?
I guess the reason:
There is a display port chip which connect to ‘/dev/dri/card0’.
However, there isn’t a dedicated chip for HDMI interface. So it needs PL to implement that.
Is it right?
Any help will be highly appreciated!