On a PowerPC machine, when Open Firmware Frame Buffer is used (OFfb), I
cannot `modprobe radeonfb` (but I can load `radeon`). It currently fails with:
[ 96.551486] radeonfb 0000:00:10.0: enabling device (0006 -> 0007)
[ 96.551526] radeonfb 0000:00:10.0: BAR 0: can't reserve [mem
[ 96.551531] radeonfb (0000:00:10.0): cannot request region 0.
[ 96.551545] radeonfb: probe of 0000:00:10.0 failed with error -16
It seems (to me) that it should be possible to add something like this
/* Get rid of things like offb */
ret = radeon_kick_out_firmware_fb(pdev);
radeonfb is a different driver than radeon. Please file a bug at https://bugzilla.kernel.org/ against
If radeon works, why not use it?