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(xcpe-178-82-167-143.dyn.res.sunrise.net [178.82.167.143]) by mail11.truemail.it (Postfix) with ESMTPA id 2DB8726664; Mon, 9 Nov 2026 16:58:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1794239883; bh=5xzFaNjdBU2+3j5ofh/IAiAGHMFfV4HPNdcRnthw2k4=; h=From:To:Subject; b=J8Uat55cuxs2U/x9zu70hgT7pCcrEBVnNxXvyWdiA6QEI/xouLkfWO6DKaauruTTK G4j8c8zvH9sniRvBQRXgMWJgOCGuxHVmKn1DgElYio+caJKdRG72Iw2p9NxF8mcnM+ YE+jF6MbBYC9sRkE/pcRjZX1643eaP0NvIUxiuam5djt/9/KbyGlMgaz+FoI7YEYAz Kb81q2fF3UIcwnW0dODqON8l6hi/DZh4piWzfat/DhCZiIrvHwr9P2ZOYaxsPkmdTG u9IabiWgHIVBbYGBWzAJ9XTWT+yPvfghuQGIZpmrY9y2Q6ADPPnNnb1qWkZQ9bK2ug 3iUYa+LOEKddQ== From: Francesco Dolcini To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Francesco Dolcini , Kiryl Shutsemau , Rick Edgecombe , Dave Hansen Cc: devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-bsp@toradex.com, x86@kernel.org, linux-coco@lists.linux.dev, kvm@vger.kernel.org Subject: [PATCH v2 6/8] ARM: dts: imx6ull-colibri-emmc: Add Toradex Capacitive Touch Display 7" Parallel with Touch Adapter Date: Mon, 9 Nov 2026 16:57:46 +0100 Message-ID: <20261109155751.475875-7-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261109155751.475875-1-francesco@dolcini.it> References: <20261109155751.475875-1-francesco@dolcini.it> X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Francesco Dolcini Add a device tree overlay for the Capacitive Touch Display 7" Parallel on the Colibri iMX6ULL eMMC parallel RGB LCD interface. The panel is a LogicTechno LT161010-2NHC 7" WVGA TFT Transmissive LCD and the touch input is provided by an Atmel MaxTouch capacitive touch controller. The touch controller is connected to the Toradex Capacitive Touch Adapter, the connection to the various carrier boards is documented in the datasheet [1]. The panel, backlight and LCDIF configuration is identical to the Colibri iMX7 eMMC one, only the Atmel MaxTouch controller wiring and the conflicting PWM channels are SoC specific. To avoid duplicating it, rework the Colibri iMX7 eMMC overlay to include the dtsi shared between the two modules, and use it from the new overlay as well. The overlay is also combined with the Eval carrier board device tree to provide a ready-to-use DTB. Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-parallel/ Link: https://developer.toradex.com/hardware/accessories/add-ons/capacitive-touch-adapter/ Link: https://docs.toradex.com/104615-capacitive-touch-adapter-datasheet.pdf [1] Signed-off-by: Francesco Dolcini --- v2: add the tdx vendor prefix to the overlay, shared dtsi and combined DTB names --- arch/arm/boot/dts/nxp/imx/Makefile | 6 +++ ...ap-touch-7inch-parallel-touch-adapter.dtso | 46 +++++++++++++++++++ ...ap-touch-7inch-parallel-touch-adapter.dtso | 16 +------ 3 files changed, 54 insertions(+), 14 deletions(-) create mode 100644 arch/arm/boot/dts/nxp/imx/imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile index a0d22028f20d..7332167aee44 100644 --- a/arch/arm/boot/dts/nxp/imx/Makefile +++ b/arch/arm/boot/dts/nxp/imx/Makefile @@ -365,6 +365,10 @@ imx6ull-colibri-emmc-iris-v2-tdx-panel-cap-touch-7inch-parallel-dtbs := \ imx6ull-colibri-emmc-iris-v2.dtb \ imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel.dtbo +imx6ull-colibri-emmc-eval-v3-tdx-panel-cap-touch-7inch-parallel-touch-adapter-dtbs := \ + imx6ull-colibri-emmc-eval-v3.dtb \ + imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtbo + dtb-$(CONFIG_SOC_IMX6UL) += \ imx6ul-14x14-evk.dtb \ imx6ul-ccimx6ulsbcexpress.dtb \ @@ -395,10 +399,12 @@ dtb-$(CONFIG_SOC_IMX6UL) += \ imx6ull-colibri-emmc-aster.dtb \ imx6ull-colibri-emmc-aster-tdx-panel-cap-touch-7inch-parallel.dtb \ imx6ull-colibri-emmc-eval-v3.dtb \ + imx6ull-colibri-emmc-eval-v3-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtb \ imx6ull-colibri-emmc-iris.dtb \ imx6ull-colibri-emmc-iris-v2.dtb \ imx6ull-colibri-emmc-iris-v2-tdx-panel-cap-touch-7inch-parallel.dtb \ imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel.dtbo \ + imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtbo \ imx6ull-colibri-eval-v3.dtb \ imx6ull-colibri-iris.dtb \ imx6ull-colibri-iris-v2.dtb \ diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso b/arch/arm/boot/dts/nxp/imx/imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso new file mode 100644 index 000000000000..14615f3089e3 --- /dev/null +++ b/arch/arm/boot/dts/nxp/imx/imx6ull-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/* + * Copyright (c) Toradex + * + * Toradex Capacitive Touch Display 7" Parallel connected through the 40-way + * Unified Interface Display connector and Toradex Capacitive Touch Adapter. + * + * Toradex Capacitive Touch Adapter connection with the various carrier boards + * is documented in the datasheet [1]. + * + * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-7inch-parallel/ + * https://www.toradex.com/accessories/capacitive-touch-display-7-inch-parallel + * https://docs.toradex.com/104497-7-inch-parallel-capacitive-touch-display-800x480-datasheet.pdf + * https://developer.toradex.com/hardware/accessories/add-ons/capacitive-touch-adapter/ + * https://www.toradex.com/accessories/capacitive-touch-adapter + * https://docs.toradex.com/104615-capacitive-touch-adapter-datasheet.pdf [1] + */ + +/dts-v1/; +/plugin/; + +#include +#include + +#include "imx6ull-imx7-colibri-tdx-panel-cap-touch-7inch-parallel.dtsi" + +&atmel_mxt_ts { + pinctrl-0 = <&pinctrl_atmel_adap>; + /* SODIMM 28 / TOUCH_INT# */ + interrupt-parent = <&gpio4>; + interrupts = <16 IRQ_TYPE_EDGE_FALLING>; + /* SODIMM 30 / TOUCH_RST# */ + reset-gpios = <&gpio2 5 GPIO_ACTIVE_LOW>; + + status = "okay"; +}; + +/* Conflict with SODIMM 28 / TOUCH_INT# */ +&pwm5 { + status = "disabled"; +}; + +/* Conflict with SODIMM 30 / TOUCH_RST# */ +&pwm6 { + status = "disabled"; +}; diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso b/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso index 890461f92442..aa8ae9418b44 100644 --- a/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso +++ b/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-tdx-panel-cap-touch-7inch-parallel-touch-adapter.dtso @@ -22,6 +22,8 @@ #include #include +#include "imx6ull-imx7-colibri-tdx-panel-cap-touch-7inch-parallel.dtsi" + &atmel_mxt_ts { pinctrl-0 = <&pinctrl_atmel_adapter>; /* SODIMM 28 / TOUCH_INT# */ @@ -33,20 +35,6 @@ &atmel_mxt_ts { status = "okay"; }; -&backlight { - status = "okay"; -}; - -&lcdif { - status = "okay"; -}; - -&panel_dpi { - compatible = "logictechno,lt161010-2nhc"; - - status = "okay"; -}; - /* Conflict with SODIMM 28 / TOUCH_INT# */ &pwm2 { status = "disabled"; -- 2.47.3