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

[jonsmirl at gmail.com]

On Thu, Aug 28, 2014 at 10:37 AM, Geert Uytterhoeven
<geert at linux-m68k.org> wrote:
> 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.

Not sure how that works. It from a PowerMac

arch/powerpc/platforms/powermac/bootx_init.c
arch/powerpc/kernel/prom_init.c

>
> --
> 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