On 9/21/2020 5:22 AM, Huacai Chen wrote:
> Use separate remove()/shutdown() callback, and don't disable pci device
> during shutdown. This can avoid some poweroff/reboot failures.
>
> The poweroff/reboot failures can easily reproduce on Loongson platforms.
> I think this is not a Loongson-specific problem, instead, is a problem
> related to some specific PCI hosts. On some x86 platforms, radeon/amdgpu
> devices can cause the same problem, and commit faefba95c9e8ca3a523831c2e
> ("drm/amdgpu: just suspend the hw on pci shutdown") can resolve it.
This sounds like a quirk to me rather than a behavior that should be
applied to all platforms.
