Hi Laurent,

Basically I agree that we need a common panel framework. I just have
some questions:
1.  I think we should add color format in videomode - if we use such
common video mode structure shared across subsystems.
In HDMI, colors are bind with timings tightly. We need a combined
videomode with timing and color format together.
2. I think we should add "set_videomode" interface. It helps HDMI
monitors to set EDIDs.

-- 
Thanks,
-Zhou