[PATCH] backlight: corgi: Fix gpio numbers for backlight controls

[Arnd Bergmann]

On Tue, Jul 5, 2022 at 12:04 AM Laurence de Bruxelles
<lfdebrux at gmail.com> wrote:
> 4 Jul 2022 14:09:18 Arnd Bergmann <arnd at arndb.de>:
> > We are currently planning the removal of non-DT board support for a
> > lot of platforms, and spitz is currently on the list I have noted down
> > for
> > getting removed in early 2023, see the thread at
> >
> >
> > https://lore.kernel.org/linux-arm-kernel/b8372253-abf6-5eee-f9cd-788bc5f24be2@zonque.org/
> >
> > Are you actively using this machine, and planning to keep using it
> > in the future? Are you interested in working on or testing a DT
> > conversion?
>
> Yes to all :)

Great!

> How can I get involved?

I don't think anyone else is currently working on further DT conversion, though
Robert Jarzmik and Daniel Mack have done the important preparation work for
this in the past, and Linus Walleij is looking at it across multiple
platforms, so
they can probably give more helpful advice than I can.

There is a pxa27x.dtsi file that you can include in a new pxa270-spitz.dts file,
but there are no other dts files that include this, so it's likely
that there are
mistakes in the description.

The approach I would use is to start with a minimal dts file and get the console
uart working in qemu, then add more devices one at a time by creating nodes
for the devices that already have DT support, and after that create DT bindings
for devices that don't have one yet, using the raumfeld files as a template.

Feel free to ask on the #armlinux IRC channel on irc.libera.chat when you
run into problems.

       Arnd