Re: spidev: Instantiating from DT as "spidev"

[Geert Uytterhoeven <geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>]

Hi Trent,

On Thu, Nov 30, 2017 at 3:07 AM, Trent Piepho <tpiepho-cgc2CodaaHDQT0dZR+AlfA@public.gmane.org> wrote:
> On Wed, 2017-11-29 at 23:18 +0100, Geert Uytterhoeven wrote:
>> To me, the above sounds a bit contradictive: either you have
>>   1. a simple (trivial) description, which can be handled by spidev and
>>      userspace, and thus by just writing "<unit-addr> spidev" to a new_device
>>      sysfs node, or
>>   2. a complex description, for which you need a specialized in-kernel driver,
>>      so you're gonna need a real DT node (and overlays?) to describe it.
>>
>> I don't think writing a complex description to a new_device sysfs node makes
>> sense.
>
> Is there anything one can do with new_device that can't be done with a
> dt fragment?

Nope.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org

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