Re: RFC Need advice on reworking gpio-ep93xx.c to DT support

[Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>]

Hello Nikita, Arnd!

On Mon, 2021-03-22 at 19:48 +0300, nikita.shubin@xxxxxxxxxxx wrote:
> > > >  Note that the GPIO banks are registered a bit goofy, Ports C and F are
> > > >  not in order. They have been that way since the original Cirrus "crater"
> > > >  code base. If I remember correctly this was somewhere back in the 2.6.x
> > > >  kernel. Please make sure the GPIO numbers stay the same so that any
> > > >  userspace code does not break.
> > 
> > >  I'm sceptical about this DT convertion.
> > 
> > I'm in the same boat. One of the reasons I have not tried to convert it...
> 
> I find this a bit confusing, so you think ep93xx shouldn't be touched at all ?
> 
> AFAIK the question is reworking to DT or it will be dropped eventually:
> 
> https://lore.kernel.org/lkml/CAK8P3a2VW8T+yYUG1pn1yR-5eU4jJXe1+M_ot6DAvfr2KyXCzQ@xxxxxxxxxxxxxx/

I somehow missed the Jan Email even though I should be in the "maintainers"
for EP93xx. I still know about thousands of devices running 24/7 with mainline Linux.

Is it really about "DT conversion or die"?
These systems really have very tight RAM and Flash budgets...

-- 
Alexander Sverdlin.