linux-kernel - Re: [PATCH v2 1/2] arm64: dts: allwinner: a64-amarula-relic: Add GT5663 CTP node

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Date:   Thu, 18 Apr 2019 14:57:29 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Jagan Teki <jagan@...rulasolutions.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-amarula@...rulasolutions.com
Subject: Re: [PATCH v2 1/2] arm64: dts: allwinner: a64-amarula-relic: Add
 GT5663 CTP node

On Thu, Apr 18, 2019 at 06:00:27PM +0530, Jagan Teki wrote:
> On Thu, Apr 18, 2019 at 4:54 PM Maxime Ripard <maxime.ripard@...tlin.com> wrote:
> >
> > On Thu, Apr 18, 2019 at 02:05:42PM +0530, Jagan Teki wrote:
> > > Add Goodix GT5663 capacitive touch controller node on
> > > Amarula A64-Relic board.
> > >
> > > The CTP connected to board with,
> > > - SDA, SCK from i2c1
> > > - GPIO-LD0 as AVDD28 supply
> > > - PH4 gpio as interrupt pin
> > > - PH8 gpio as reset pin
> > > - X axis is inverted
> > > - Y axis is inverted
> > >
> > > Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> > > ---
> > > Changes for v2:
> > > - drop i2c1, bias-pull-up
> > >
> > >  .../allwinner/sun50i-a64-amarula-relic.dts    | 25 +++++++++++++++++++
> > >  1 file changed, 25 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
> > > index 3575db216016..3819ce396073 100644
> > > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
> > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-amarula-relic.dts
> > > @@ -49,6 +49,24 @@
> > >       bias-pull-up;
> > >  };
> > >
> > > +&i2c1 {
> > > +     pinctrl-names = "default";
> > > +     pinctrl-0 = <&i2c1_pins>;
> >
> > That's the default already
>
> Yes, and i2c1 node in sun50i-a64.dtsi is not attaching pinctrl. So I
> attached here.

If that's the only muxing option, it should then.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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