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Oct 2026 11:26:05 -0500 From: Frank Li To: Leonardo Costa Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, francesco.dolcini@toradex.com, leonardo.costa@toradex.com, hvilleneuve@dimonoff.com, marex@nabladev.com, stefano.r@variscite.com, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/7] ARM: dts: imx6q-apalis: Add Toradex Capacitive Touch Display 10.1" LVDS Message-ID: References: <20261001155412.3177428-1-leoreis.costa@gmail.com> <20261001155412.3177428-4-leoreis.costa@gmail.com> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261001155412.3177428-4-leoreis.costa@gmail.com> X-ClientProxiedBy: CY8P222CA0013.NAMP222.PROD.OUTLOOK.COM (2603:10b6:930:6b::6) To GV2PR04MB11799.eurprd04.prod.outlook.com (2603:10a6:150:2cf::9) Precedence: bulk X-Mailing-List: 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3CuWYJmYrRBcuQTk3Gl1StTduBeDH6SRZHf1fWnrbT7hBIVUkx5fVX0TmY1XgEdHG+7swXG0Qb8q5WTojBkaa9lLcX7sNZvjCoMJHde6k8+cYSa3iLjPzly9wqENdxVB X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR04MB9045 On Thu, Oct 01, 2026 at 12:52:53PM -0300, Leonardo Costa wrote: > From: Leonardo Costa > > Add a device tree overlay for the Toradex Capacitive Touch Display 10.1" > LVDS connected via the Apalis iMX6 LDB. > > The panel is a LogicTechno LT170410-2WHC 10.1" WXGA IPS LCD and the > touch input is provided by an Atmel MaxTouch capacitive touch > controller. > > Remove the panel-lvds node from the Apalis iMX6 dtsi, as it is an > external component that does not exist at the SoM level. > > The overlay is also combined with the Apalis iMX6 V1.2 Ixora Carrier > Board V1.2 device tree to provide a ready-to-use DTB. > > Link: https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds > Signed-off-by: Leonardo Costa > --- > arch/arm/boot/dts/nxp/imx/Makefile | 6 +++ > ...6q-apalis-panel-cap-touch-10inch-lvds.dtso | 53 +++++++++++++++++++ > arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi | 13 ----- > 3 files changed, 59 insertions(+), 13 deletions(-) > create mode 100644 arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso similar 7" case, add panel module name in file imx6q-apalis-lvds-panel-lt170410.dtso > > diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile > index 32d77a59c4358..23fcc80d7f309 100644 > --- a/arch/arm/boot/dts/nxp/imx/Makefile > +++ b/arch/arm/boot/dts/nxp/imx/Makefile > @@ -99,6 +99,10 @@ imx6q-apalis-v1.2-ixora-v1.2-hdmi-dtbs := \ > imx6q-apalis-v1.2-ixora-v1.2.dtb \ > imx6q-apalis-hdmi.dtbo > > +imx6q-apalis-v1.2-ixora-v1.2-panel-cap-touch-10inch-lvds-dtbs := \ > + imx6q-apalis-v1.2-ixora-v1.2.dtb \ > + imx6q-apalis-panel-cap-touch-10inch-lvds.dtbo > + > imx6qdl-dhcom-pdk2-overlay-497-200-x12-dtbs := \ > imx6q-dhcom-pdk2.dtb \ > imx6qdl-dhcom-pdk2-overlay-497-200-x12.dtbo > @@ -233,6 +237,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \ > imx6q-apalis-ixora-v1.1-hdmi.dtb \ > imx6q-apalis-ixora-v1.2.dtb \ > imx6q-apalis-ixora-v1.2-hdmi.dtb \ > + imx6q-apalis-panel-cap-touch-10inch-lvds.dtbo \ > imx6q-apalis-v1.2-eval.dtb \ > imx6q-apalis-v1.2-eval-hdmi.dtb \ > imx6q-apalis-v1.2-eval-v1.2.dtb \ > @@ -243,6 +248,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \ > imx6q-apalis-v1.2-ixora-v1.1-hdmi.dtb \ > imx6q-apalis-v1.2-ixora-v1.2.dtb \ > imx6q-apalis-v1.2-ixora-v1.2-hdmi.dtb \ > + imx6q-apalis-v1.2-ixora-v1.2-panel-cap-touch-10inch-lvds.dtb \ > imx6q-apf6dev.dtb \ > imx6q-arm2.dtb \ > imx6q-b450v3.dtb \ > diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso > new file mode 100644 > index 0000000000000..a84114e1d3fba > --- /dev/null > +++ b/arch/arm/boot/dts/nxp/imx/imx6q-apalis-panel-cap-touch-10inch-lvds.dtso > @@ -0,0 +1,53 @@ > +// SPDX-License-Identifier: GPL-2.0-only OR MIT > +/* > + * Copyright (c) Toradex > + * > + * Toradex Capacitive Touch Display 10.1" connected via Apalis iMX6 LDB > + * on carrier boards with a Toradex standard LVDS display connector. > + * > + * https://docs.toradex.com/105952-10-1-inch-lvds-capacitive-touch-display-1280x800-datasheet.pdf > + * https://developer.toradex.com/hardware/accessories/displays/capacitive-touch-display-101inch-lvds > + * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-lvds > + */ > + > +/dts-v1/; > +/plugin/; > + > +&{/} { > + panel-lvds { > + compatible = "logictechno,lt170410-2whc"; > + backlight = <&backlight>; > + power-supply = <®_3v3_sw>; use name reg_lvds_panel, it help improve reusablity. Frank > + > + port { > + lvds_panel_in: endpoint { > + remote-endpoint = <&lvds0_out>; > + }; > + }; > + }; > +}; > + > +&atmel_mxt_ts { > + status = "okay"; > +}; > + > +&backlight { > + status = "okay"; > +}; > + > +&ldb { > + #address-cells = <1>; > + #size-cells = <0>; > + > + status = "okay"; > + > + lvds-channel@0 { > + reg = <0>; > + > + status = "okay"; > + }; > +}; > + > +&lvds0_out { > + remote-endpoint = <&lvds_panel_in>; > +}; > diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi > index 5fcd7cdb7001f..e52b55a386f7a 100644 > --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi > +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi > @@ -95,18 +95,6 @@ lcd_panel_in: endpoint { > }; > }; > > - panel_lvds: panel-lvds { > - compatible = "panel-lvds"; > - backlight = <&backlight>; > - status = "disabled"; > - > - port { > - lvds_panel_in: endpoint { > - remote-endpoint = <&lvds0_out>; > - }; > - }; > - }; > - > poweroff { > compatible = "regulator-poweroff"; > cpu-supply = <&vgen2_reg>; > @@ -738,7 +726,6 @@ port@4 { > reg = <4>; > > lvds0_out: endpoint { > - remote-endpoint = <&lvds_panel_in>; > }; > }; > }; >