[OpenWrt-Devel] [PATCH] x86: disable kmod-drm-radeon and kmod-drm-amdgpu for geode

[Tomasz Maciej Nowak]

Hi Petr, Alberto,

W dniu 08.04.2019 o 14:34, Alberto Bursi pisze:
> 
> On 08/04/19 11:42, Petr Štetiar wrote:
>> Tomasz Maciej Nowak <tomek_n at o2.pl> [2019-04-07 18:35:01]:
>>
>> Hi,
>>
>> thanks for trying to unbreak currently failing Geode builds.
>>
>>> Building images for geode has been failing because of missing
>>> dependencies:
>>> backlight.ko
>>> drm_kms_helper.ko
>>> fb.ko
>>> ttm.ko
>>> Being geode a speciffic hardware, where drm-radeon and drm-amdgpu modules
>>> will probably never be used, disable both.
>> Fixing the kernel module dependencies is PITA, I know, but this simply doesn't
>> look like a proper fix to me, rather just like a workaround.

Yes, adding those modules to dependencies would solve the issue, but for how long? If AMD people would decide to add another module to dependencies, we would need to fix it again and fix something not one would ever use on this target, only for the sake of it?

>>
>> -- ynezz
>>
>>
> It is indeed a workaround, but is it worth to spend time troubleshooting
> something that is never going to be used?
> 
> I don't see why these modules were built at all. It's pretty hard or even impossible
> to run any addon graphics card on a Geode system.
> 
> At most they have PCI slots, many (the networking alix boards from PCEngines) only have mini PCI slots.
> 
> drm-amdgpu will 100% never be used as it runs modern PCIe cards.
> 
> I don't find any good reason to mount an ancient AMD card over a
> PCI slot (or mini pci slot + adapter) as they have their own integrated
> graphics with a VGA port already.
> 
> -Alberto

Thanks, this is more or less what I had in mind deciding how to approach this, and form this POV calling it workaround is debatable. I'll leave patch in this form, if anyone wants to take different approach, please do.

Regards

-- 
TMN

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