vc4 & overscan?

[Gerd Hoffmann]

  Hi,

Is there some way to configure overscan when vc4 and/or simplefb is in
use?

With the raspberrypi downstream kernels and the bcm framebuffer driver
setting overscan in config.txt works fine.  Both simplefb and vc4 ignore
that though, and I havn't found any other way to setup overscan.  One of
my rpi's is connected to a TV, and there I actually need overscan ...

hints anyone?
  Gerd