From: Tony Lindgren <tony@atomide.com>
To: Trent Piepho <tpiepho@gmail.com>
Cc: Drew Fustini <drew@beagleboard.org>,
Rob Herring <robh+dt@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Jason Kridner <jkridner@beagleboard.org>,
Robert Nelson <robertcnelson@gmail.com>,
linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org,
linux-gpio <linux-gpio@vger.kernel.org>,
Christina Quast <cquast@hanoverdisplays.com>
Subject: Re: [PATCH] ARM: dts: document pinctrl-single,pins when #pinctrl-cells = 2
Date: Thu, 24 Sep 2020 09:06:45 +0300 [thread overview]
Message-ID: <20200924060645.GD9471@atomide.com> (raw)
In-Reply-To: <CA+7tXigg+h3v61AVMaYRKa_ZwznehOUPEESMqXKsNDNCrFph3w@mail.gmail.com>
* Trent Piepho <tpiepho@gmail.com> [200924 05:49]:
> On Wed, Sep 23, 2020 at 10:43 PM Tony Lindgren <tony@atomide.com> wrote:
> >
> > * Trent Piepho <tpiepho@gmail.com> [200924 01:34]:
> > > On Tue, Sep 22, 2020 at 11:57 PM Tony Lindgren <tony@atomide.com> wrote:
> > > >
> > > > Also FYI, folks have also complained for a long time that the pinctrl-single
> > > > binding mixes mux and conf values while they should be handled separately.
> > > >
> > >
> > > Instead of combining two fields when the dts is generated they are now
> > > combined when the pinctrl-single driver reads the dts. Other than
> > > this detail, the result is the same. The board dts source is the
> > > same. The value programmed into the pinctrl register is the same.
> > > There is no mechanism currently that can alter that value in any way.
> > >
> > > What does combining them later allow that is not possible now?
> >
> > It now allows further driver changes to manage conf and mux separately :)
>
> The pinctrl-single driver? How will that work with boards that are
> not am335x and don't use conf and mux fields in the same manner as
> am335x?
For those cases we still have #pinctrl-cells = <1>.
Regards,
Tony
next prev parent reply other threads:[~2020-09-24 6:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-14 10:43 [PATCH] ARM: dts: document pinctrl-single,pins when #pinctrl-cells = 2 Drew Fustini
2020-09-17 9:03 ` Trent Piepho
2020-09-17 9:20 ` Drew Fustini
2020-09-17 10:00 ` Trent Piepho
2020-09-17 10:39 ` Drew Fustini
2020-09-23 6:57 ` Tony Lindgren
2020-09-24 1:34 ` Trent Piepho
2020-09-24 5:43 ` Tony Lindgren
2020-09-24 5:49 ` Trent Piepho
2020-09-24 6:06 ` Tony Lindgren [this message]
2020-09-24 6:31 ` Trent Piepho
2020-09-24 7:04 ` Tony Lindgren
2020-09-29 20:15 ` Trent Piepho
2020-09-30 5:15 ` Tony Lindgren
2020-09-30 8:34 ` Trent Piepho
2020-09-30 9:15 ` Tony Lindgren
2020-09-30 9:34 ` Trent Piepho
2020-09-30 9:47 ` Tony Lindgren
2020-09-30 18:50 ` Trent Piepho
2020-10-01 7:00 ` Tony Lindgren
2020-09-23 6:59 ` Tony Lindgren
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