On Thu, Sep 19, 2013 at 1:42 PM, Michael Schmitz <[email protected]> wrote:
>>>> When doing a kexec (WIP) on ARAnyM while the screen was blanked, the
>>>> kexec'd kernel failed to initialize atafb. If the screen isn't
>>>> blanked, it works fine.
>>
>> falcon_blank() clears several videl registers, while falcon_detect()
>> reads them to detect the current video mode.
>
> I suppose we can't just leave the cleared registers loaded when kexec
> support is compiled in, and effect screen blanking in another way
> (color map)?
>
> Can the screen be blanked/unblanked from user space (fbset)?
You can unblank from userspace.
Probably the right way is to convert atafb to use a platform device first,
and hook up its shutdown() method later.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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