It's more like drm vs fbdev - kernel is migrating from fbdev to drm and fbdev is in "maintanance mode". PVR uses open source driver for interaction between it's closed source binaries and the rest of the kernel trough fbdev. Moving support for our display panels to drm requires converting PVR "middle layer" also and that could be quite tricky. Sebastian is not interested in using closed source binaries, so that would be our job. PVR just provides us with GLES/EGL but OMAP DSS is the one responsible for rendering the image from framebuffer to display panel (ie you can do without PVR). I'm not an expert in the whole thing TBH.

Nope, but I asked him if I can share what we've discussed here and he's OK with that