Allwinner H3 (NanoPi Neo): Getting PORTL (on /dev/gpioc1) to work

[Michael Hrabanek]

Hello,
any updates? If you'll need any testing done I'd be happy to help

Cheers,
Michael

On Thu, Sep 21, 2017 at 8:22 AM, Emmanuel Vadot <manu at bidouilliste.com>
wrote:

> On Tue, 19 Sep 2017 09:45:22 +0200
> Michael Hrabanek <hrabanek at gmail.com> wrote:
>
> > Hi everybody,
> > I'm running 12.0-CURRENT (rev 323710) using GENERIC kernel on NanoPi Neo
> > (allwinner H3). I can use and control all gpio pins on /dev/gpioc0
> without
> > any issue, but if I try to configure any pin on /dev/gpioc1 (there are
> only
> > PORTL pins there), nothing happens (pin configuration stays the same,
> > gpioctl returns 0 and no error in log).
> >
> > root at nanopi-neo:~ # gpioctl -f /dev/gpioc1 -lv
> > pin 00: 0       PL0<PU>, caps:<IN,OUT,PU,PD>
> > pin 01: 0       PL1<PU>, caps:<IN,OUT,PU,PD>
> > pin 02: 0       PL2<>, caps:<IN,OUT,PU,PD>
> > pin 03: 0       PL3<>, caps:<IN,OUT,PU,PD>
> > pin 04: 0       PL4<>, caps:<IN,OUT,PU,PD>
> > pin 05: 0       PL5<>, caps:<IN,OUT,PU,PD>
> > pin 06: 0       PL6<>, caps:<IN,OUT,PU,PD>
> > pin 07: 0       PL7<>, caps:<IN,OUT,PU,PD>
> > pin 08: 0       PL8<>, caps:<IN,OUT,PU,PD>
> > pin 09: 0       PL9<>, caps:<IN,OUT,PU,PD>
> > pin 10: 0       PL10<>, caps:<IN,OUT,PU,PD>
> > pin 11: 0       PL11<>, caps:<IN,OUT,PU,PD>
> >
> > root at nanopi-neo:~ # gpioctl -f /dev/gpioc1 -c 10 OUT
> >
> > root at nanopi-neo:~ # gpioctl -f /dev/gpioc1 -lv
> > <...>
> > pin 10: 0       PL10<>, caps:<IN,OUT,PU,PD>
> > pin 11: 0       PL11<>, caps:<IN,OUT,PU,PD>
> >
> > Did anyone managed to get pins on PORTL working? (btw there are two LEDs
> on
> > nanopi neo, the blue one on PA10, which I can control normally and the
> > green (pwr) one, wired to PL10, which only slightly dims (ie. pin is not
> > configured as output)).
> > Any idea what's wrong? Is there an issue with FDT config? (I'm using
> > default one from src nanopi-neo.dtb) Or some bug in kernel? I'm not
> afraid
> > of some kernel hacking, but I'd welcome some pointers where to look
> first.
> > Any suggestions would be greatly appreciated,
> > Michael
>
>  Hello,
>
>  Thanks for reporting, I totally forgot that I needed to do a r_ccu
> driver for H3.
>  The PORTL on H3 lives on another gpio controller, for which it's clock
> lives in another clock controller and we miss the driver for the latest.
>  It also raise a problem on our gpio driver as it shouldn't attach and
> create the node while the clocks are missing.
>  I'll invastigate after EuroBSDCon.
>
>  Cheers,
>
> --
> Emmanuel Vadot <manu at bidouilliste.com> <manu at freebsd.org>
>