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

[Geert Uytterhoeven]

On Wed, Oct 1, 2014 at 7:17 PM, Mark Brown <broonie at kernel.org> wrote:
>> Well, I don't think it should because it describes the same resources
>> that the device tree node for the real device already describes. But
>> perhaps this is one of the cases where duplication isn't all that bad?
>
> If we were worried about this wecould also do it by referring to
> those nodes and saying "get all the resources these things need" rather
> than duplicating the references (this might make it easier to work out
> when the system is ready to hand off to the real drivers).

You can have a single node for both simplefb and the later "real" driver.
DT describes the hardware, not the software ecosystem running on the
hardware. Clock, regulators, etc. don't change from a hardware point of
view.

If the firmware initialized a suitable graphics mode, it just has to add
"linux,simplefb" to the compatible property (and perhaps a few other
simplefb-specific properties).

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