[linux-sunxi] Re: [PATCH 4/4] simplefb: add clock handling code

[jonsmirl at gmail.com]

On Thu, Oct 2, 2014 at 9:46 AM, Geert Uytterhoeven <geert at linux-m68k.org> wrote:
> On Thu, Oct 2, 2014 at 3:34 PM, jonsmirl at gmail.com <jonsmirl at gmail.com> wrote:
>> Does the clock and regulator cleanup happen before drivers can load
>> off from initrd? I didn't think it did but I might be wrong.
>
> Yes
>
> drivers/base/power/domain.c:late_initcall(genpd_poweroff_unused);
> drivers/clk/clk.c:late_initcall_sync(clk_disable_unused);
> drivers/regulator/core.c:late_initcall_sync(regulator_init_complete);

I think this is the basic problem, we need to open a window where
drivers can be loaded before the clock/regulator clean up happens.
That window needs to be fixed length (ie Ramdisk based loading).

This is a core problem in a multi-architecture kernel, we need to get
the device specific drivers loaded before this clean up happens.



>
> Gr{oetje,eeting}s,
>
>                         Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
>
> 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



-- 
Jon Smirl
jonsmirl at gmail.com