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

Geert Uytterhoeven geert at linux-m68k.org
Thu Aug 28 07:37:37 PDT 2014

On Thu, Aug 28, 2014 at 4:33 PM, jonsmirl at gmail.com <jonsmirl at gmail.com> wrote:
> On Thu, Aug 28, 2014 at 10:20 AM, Geert Uytterhoeven
> <geert at linux-m68k.org> wrote:
>> On Thu, Aug 28, 2014 at 3:22 PM, jonsmirl at gmail.com <jonsmirl at gmail.com> wrote:
>>>> 2) We don't want to hardcode these clocks into the kernel (sunxi) clk
>>>> driver, instead the bootloader should tell the kernel about these clocks.
>>>> So the only point of discussion left seems to be how to do 2...
>>> Wouldn't it be a lot simpler just to use existing fbdev (not KMS) and
>>> whip together a device specific driver that claims the proper
>>> resources? And just implement the minimal about of fbdev possible?
>>> fbdev already is a driver library.
>> Like... drivers/video/fbdev/offb.c?
> I'd probably reclassify drivers/video/fbdev/simplefb.c as a skeleton
> and use it as a template for making device specific versions of it.
> I don't see why there is so much resistance to just making device
> specific fb drivers.  Whenever the KMS driver gets written just
> disable the device specific fb driver in the build.

I explicitly named offb, because it already supports living with the
video mode initialized by Open Firmware, which is passed to the kernel
in a device tree.



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

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