linux-kernel - Re: [PATCH 12/22] ARM: dts: imx6: Add touchscreens used on Toradex eval boards

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Date:   Wed, 31 Jul 2019 06:43:24 +0000
From:   Philippe Schenker <philippe.schenker@...adex.com>
To:     "festevam@...il.com" <festevam@...il.com>
CC:     "stefan@...er.ch" <stefan@...er.ch>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "linux-imx@....com" <linux-imx@....com>
Subject: Re: [PATCH 12/22] ARM: dts: imx6: Add touchscreens used on Toradex
 eval boards

On Tue, 2019-07-30 at 17:46 -0300, Fabio Estevam wrote:
> On Tue, Jul 30, 2019 at 11:57 AM Philippe Schenker <dev@...henker.ch> wrote:
> 
> > +       /* Atmel maxtouch controller */
> > +       atmel_mxt_ts: atmel_mxt_ts@4a {
> 
> Generic node names, please:
> 
> touchscreen@4a
> 
> > +               compatible = "atmel,maxtouch";
> > +               pinctrl-names = "default";
> > +               pinctrl-0 = <&pinctrl_pcap_1>;
> > +               reg = <0x4a>;
> > +               interrupt-parent = <&gpio1>;
> > +               interrupts = <9 IRQ_TYPE_EDGE_FALLING>; /* SODIMM 28 */
> > +               reset-gpios = <&gpio2 10 GPIO_ACTIVE_HIGH>; /* SODIMM 30 */
> > +               status = "disabled";
> > +       };
> > +
> > +       /*
> > +        * the PCAPs use SODIMM 28/30, also used for PWM<B>, PWM<C>, aka
> > pwm1,
> > +        * pwm4. So if you enable one of the PCAP controllers disable the
> > pwms.
> > +        */
> > +       pcap: pcap@10 {
> 
> touchscreen@10
> 
> > +               /* TouchRevolution Fusion 7 and 10 multi-touch controller */
> > +               compatible = "touchrevolution,fusion-f0710a";
> 
> I do not find this binding documented.

Thanks for your feedback Fabio, and sorry such obvious stuff went through. I
will go through my whole patchset again more carefully lookup all the bindings.

Philippe