linux-kernel - Re: [PATCH v4 19/21] ARM: dts: imx6ull-colibri: Add touchscreen used with Eval Board

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Date:   Thu, 15 Aug 2019 11:02:04 +0000
From:   Oleksandr Suvorov <oleksandr.suvorov@...adex.com>
To:     Philippe Schenker <philippe.schenker@...adex.com>
CC:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        "stefan@...er.ch" <stefan@...er.ch>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michal Vokáč <michal.vokac@...ft.com>,
        Fabio Estevam <festevam@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: Re: [PATCH v4 19/21] ARM: dts: imx6ull-colibri: Add touchscreen used
 with Eval Board

On Mon, Aug 12, 2019 at 5:23 PM Philippe Schenker
<philippe.schenker@...adex.com> wrote:
>
> This adds the common touchscreen that is used with Toradex's
> Eval Boards.
>
> Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>

Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@...adex.com>

>
> ---
>
> Changes in v4: None
> Changes in v3: None
> Changes in v2:
> - Removed f0710a, that is downstream only
> - Changed to generic node name
> - Better comment
>
>  .../arm/boot/dts/imx6ull-colibri-eval-v3.dtsi | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> index a78849fd2afa..458a4084e53c 100644
> --- a/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> +++ b/arch/arm/boot/dts/imx6ull-colibri-eval-v3.dtsi
> @@ -100,6 +100,21 @@
>  &i2c1 {
>         status = "okay";
>
> +       /*
> +        * Touchscreen is using SODIMM 28/30, also used for PWM<B>, PWM<C>,
> +        * aka pwm2, pwm3. so if you enable touchscreen, disable the pwms
> +        */
> +       touchscreen@4a {
> +               compatible = "atmel,maxtouch";
> +               pinctrl-names = "default";
> +               pinctrl-0 = <&pinctrl_gpiotouch>;
> +               reg = <0x4a>;
> +               interrupt-parent = <&gpio4>;
> +               interrupts = <16 IRQ_TYPE_EDGE_FALLING>;        /* SODIMM 28 */
> +               reset-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;      /* SODIMM 30 */
> +               status = "disabled";
> +       };
> +
>         /* M41T0M6 real time clock on carrier board */
>         m41t0m6: rtc@68 {
>                 compatible = "st,m41t0";
> @@ -176,3 +191,12 @@
>         sd-uhs-sdr104;
>         status = "okay";
>  };
> +
> +&iomuxc {
> +       pinctrl_gpiotouch: touchgpios {
> +               fsl,pins = <
> +                       MX6UL_PAD_NAND_DQS__GPIO4_IO16          0x74
> +                       MX6UL_PAD_ENET1_TX_EN__GPIO2_IO05       0x14
> +               >;
> +       };
> +};
> --
> 2.22.0
>


-- 
Best regards
Oleksandr Suvorov

Toradex AG
Altsagenstrasse 5 | 6048 Horw/Luzern | Switzerland | T: +41 41 500
4800 (main line)