No backlight since linux-4.2.4 - drivers/gpu/drm/radeon/atombios_encoders.c

[Michael Burian]

On 10/28/15 20:03, Alex Deucher wrote:
>>
>> My only doubt about this patch is: Should we also fall back to the old
>> beahviour in the !(rdev->mode_info.firmware_flags &
>> ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU) case?
> 
> Theoretically, it's not necessary, but I guess better safe than sorry.
> Updated patches attached.
> 

applied both patches on top of mainline[1], backlight works fine

[1]
8a28d67457b613258aa0578ccece206d166f2b9f "Merge tag 'powerpc-4.3-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux"