DFP support for kernel radeonfb.c added

[Benjamin Herrenschmidt]

>I did some reading up on it and it seems to change the sync(?) signal to
>simulate a serial line and pass 9 bit bytes (with parity?) which are
>collected to form the EDID block.   Hopefully it won't be too complicated.
>
>I don't understand if this is only done on monitor powerup or if it can be
>done at any time by request or is it just sent continuously by the monitor.

What are you talking about ? Your DVI panel ? That's I2C, you have
one line doing the clock, one doing the data, there's some addressing
going on (first byte).

The Apple laptops _seem_ to be doing things differently. Unless you
figured something out I didn;t :)

Ben.


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