On 08/10/16 15:09, Mathieu Malaterre wrote: > When the linux kernel is build with (typical kernel ship with Debian > installer): > > CONFIG_FB_OF=y > CONFIG_VT_HW_CONSOLE_BINDING=y > CONFIG_FB_RADEON=m > > The offb driver takes precedence over module radeonfb. It is then > impossible to load the module, error reported is: > > [ 96.551486] radeonfb 0000:00:10.0: enabling device (0006 -> 0007) > [ 96.551526] radeonfb 0000:00:10.0: BAR 0: can't reserve [mem 0x98000000-0x9fffffff pref] > [ 96.551531] radeonfb (0000:00:10.0): cannot request region 0. > [ 96.551545] radeonfb: probe of 0000:00:10.0 failed with error -16 > > This patch reproduce the behavior of the module radeon, so as to make it > possible to load radeonfb when offb is first loaded. > > It should be noticed that `offb_destroy` is never called which explain the > need to skip error detection on the radeon side. > > Signed-off-by: Mathieu Malaterre <malat@xxxxxxxxxx> > Link: https://bugs.debian.org/826629#57 > Suggested-by: Lennart Sorensen <lsorense@xxxxxxxxxxxxxxxxxxx> > --- > drivers/video/fbdev/aty/radeon_base.c | 22 ++++++++++++++++++++-- > 1 file changed, 20 insertions(+), 2 deletions(-) Thanks, queued for 4.9 fixes. Tomi
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