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Fri, 29 May 2026 04:05:31 -0700 (PDT) From: Vitor Soares To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Laurent Pinchart , Francesco Dolcini , Lad Prabhakar , Thierry Reding Cc: Vitor Soares , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Nishanth Menon , Vignesh Raghavendra , Tero Kristo Subject: [PATCH v1 1/2] dt-bindings: display: panel: Add LG LP156WF1 Date: Fri, 29 May 2026 12:05:19 +0100 Message-ID: <20260529110518.624454-5-ivitro@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260529110518.624454-4-ivitro@gmail.com> References: <20260529110518.624454-4-ivitro@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Vitor Soares Add device tree binding for the LG LP156WF1 15.6" Full-HD (1920x1080) dual-channel LVDS panel. Also add lg,lp156wf1 to the panel-lvds.yaml exclusion list to prevent false schema matches. Signed-off-by: Vitor Soares Reviewed-by: Conor Dooley Reviewed-by: Francesco Dolcini --- .../bindings/display/panel/lg,lp156wf1.yaml | 105 ++++++++++++++++++ .../bindings/display/panel/panel-lvds.yaml | 1 + 2 files changed, 106 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/lg,lp15= 6wf1.yaml diff --git a/Documentation/devicetree/bindings/display/panel/lg,lp156wf1.ya= ml b/Documentation/devicetree/bindings/display/panel/lg,lp156wf1.yaml new file mode 100644 index 000000000000..6b91c2ea4827 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/lg,lp156wf1.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/lg,lp156wf1.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LG LP156WF1 15.6" Full-HD dual-LVDS panel + +maintainers: + - Francesco Dolcini + +description: | + The LP156WF1 from LG is a 15.6" Full-HD dual-LVDS panel. + A dual-LVDS interface is a dual-link connection with even pixels traveli= ng + on one link, and with odd pixels traveling on the other link. + +allOf: + - $ref: /schemas/display/lvds-dual-ports.yaml# + - $ref: panel-common.yaml# + +properties: + compatible: + items: + - const: lg,lp156wf1 + - {} # panel-lvds, but not listed here to avoid false select + + width-mm: + const: 345 + + height-mm: + const: 194 + + data-mapping: + const: jeida-24 + + panel-timing: true + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + required: + - dual-lvds-odd-pixels + + port@1: + required: + - dual-lvds-even-pixels + + required: + - port@0 + - port@1 + +required: + - compatible + - width-mm + - height-mm + - data-mapping + - panel-timing + +unevaluatedProperties: false + +examples: + - | + panel-lvds { + compatible =3D "lg,lp156wf1", "panel-lvds"; + width-mm =3D <345>; + height-mm =3D <194>; + data-mapping =3D "jeida-24"; + + panel-timing { + clock-frequency =3D <138500000>; + hactive =3D <1920>; + hback-porch =3D <40>; + hfront-porch =3D <24>; + hsync-len =3D <16>; + vactive =3D <1080>; + vback-porch =3D <23>; + vfront-porch =3D <3>; + vsync-len =3D <5>; + }; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + dual-lvds-odd-pixels; + panel_in0: endpoint { + remote-endpoint =3D <&lvds0_out>; + }; + }; + + port@1 { + reg =3D <1>; + dual-lvds-even-pixels; + panel_in1: endpoint { + remote-endpoint =3D <&lvds1_out>; + }; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/display/panel/panel-lvds.yam= l b/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml index b89f86bc0683..fbe8c162ca59 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-lvds.yaml @@ -28,6 +28,7 @@ select: - advantech,idk-1110wr - advantech,idk-2121wr - innolux,ee101ia-01d + - lg,lp156wf1 - mitsubishi,aa104xd12 - mitsubishi,aa121td01 - sgd,gktw70sdae4se --=20 2.54.0 From nobody Mon Jun 8 12:12:00 2026 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 57F053CEB9E for ; 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charset="utf-8" From: Vitor Soares Add a device tree overlay enabling the LG LP156WF1 15.6" FHD (1920x1080) dual-channel LVDS panel on the Verdin Development Board with Verdin AM62 Mezzanine expansion board. The panel connects via the AM62 OLDI0 and OLDI1 in dual-channel mode on the Mezzanine LVDS interface (J10). Assisted-by: Claude:claude-sonnet-4.6 Signed-off-by: Vitor Soares Reviewed-by: Francesco Dolcini --- arch/arm64/boot/dts/ti/Makefile | 5 + ...verdin-dev-mezzanine-lvds-lg-lp156wf1.dtso | 131 ++++++++++++++++++ 2 files changed, 136 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-lv= ds-lg-lp156wf1.dtso diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makef= ile index 371f9a043fe5..e9951b5d2e0b 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -30,6 +30,7 @@ dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-phyboard-lyra-rdk.dtb dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-sk.dtb dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-tqma62xx-mba62xx.dtb dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-verdin-dev-mezzanine-can.dtbo +dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-verdin-dev-mezzanine-lvds-lg-lp156wf1.= dtbo dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-verdin-dev-mezzanine-panel-cap-touch-1= 0inch-lvds.dtbo dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-verdin-dev-nau8822-btl.dtbo dtb-$(CONFIG_ARCH_K3) +=3D k3-am625-verdin-dsi-to-hdmi.dtbo @@ -232,6 +233,9 @@ k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10= inch-dtbs :=3D \ k3-am625-verdin-dsi-to-lvds-panel-cap-touch-10inch.dtbo k3-am625-verdin-wifi-dev-mezzanine-can-dtbs :=3D k3-am625-verdin-wifi-dev.= dtb \ k3-am625-verdin-dev-mezzanine-can.dtbo +k3-am625-verdin-wifi-dev-mezzanine-lvds-lg-lp156wf1-dtbs :=3D \ + k3-am625-verdin-wifi-dev.dtb \ + k3-am625-verdin-dev-mezzanine-lvds-lg-lp156wf1.dtbo k3-am625-verdin-wifi-dev-mezzanine-panel-cap-touch-10inch-lvds-dtbs :=3D \ k3-am625-verdin-wifi-dev.dtb \ k3-am625-verdin-dev-mezzanine-panel-cap-touch-10inch-lvds.dtbo @@ -352,6 +356,7 @@ dtb- +=3D k3-am625-beagleplay-csi2-ov5640.dtb \ k3-am625-sk-hdmi-audio.dtb \ k3-am625-verdin-wifi-dev-dsi-to-lvds-panel-cap-touch-10inch.dtb \ k3-am625-verdin-wifi-dev-mezzanine-can.dtb \ + k3-am625-verdin-wifi-dev-mezzanine-lvds-lg-lp156wf1.dtb \ k3-am625-verdin-wifi-dev-mezzanine-panel-cap-touch-10inch-lvds.dtb \ k3-am625-verdin-wifi-dev-nau8822-btl.dtb \ k3-am625-verdin-wifi-dev-ov5640-24mhz.dtb \ diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-lvds-lg-l= p156wf1.dtso b/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-lvds-lg= -lp156wf1.dtso new file mode 100644 index 000000000000..bb4acc1edf35 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am625-verdin-dev-mezzanine-lvds-lg-lp156wf1= .dtso @@ -0,0 +1,131 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT +/* + * Copyright (c) Toradex + * + * LG LP156WF1 dual-channel LVDS panel on Verdin AM62 Mezzanine + * LVDS interface (J10), used with the Verdin Development Board. + */ + +/dts-v1/; +/plugin/; + +#include +#include + +&{/} { + backlight_pwm2: backlight-pwm2 { + compatible =3D "pwm-backlight"; + brightness-levels =3D <0 45 63 88 119 158 203 255>; + default-brightness-level =3D <4>; + /* Verdin GPIO_4 (SODIMM 212) - LVDS_BKL_EN */ + enable-gpios =3D <&mcu_gpio0 4 GPIO_ACTIVE_HIGH>; + /* Verdin PWM_2 (SODIMM 16) - LVDS_PWM */ + pwms =3D <&epwm0 1 6666667 PWM_POLARITY_INVERTED>; + }; + + panel-lvds-native { + compatible =3D "lg,lp156wf1", "panel-lvds"; + backlight =3D <&backlight_pwm2>; + data-mapping =3D "jeida-24"; + height-mm =3D <194>; + width-mm =3D <345>; + + panel-timing { + clock-frequency =3D <138500000>; + hactive =3D <1920>; + hback-porch =3D <40>; + hfront-porch =3D <24>; + hsync-len =3D <16>; + pixelclk-active =3D <0>; + vactive =3D <1080>; + vback-porch =3D <23>; + vfront-porch =3D <3>; + vsync-len =3D <5>; + }; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + dual-lvds-odd-pixels; + + panel_lvds_native_in0: endpoint { + remote-endpoint =3D <&oldi0_out>; + }; + }; + + port@1 { + reg =3D <1>; + dual-lvds-even-pixels; + + panel_lvds_native_in1: endpoint { + remote-endpoint =3D <&oldi1_out>; + }; + }; + }; + }; +}; + +&dss { + status =3D "okay"; +}; + +&dss_ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + /* DSS VP1: internal DPI output to OLDIx */ + port@0 { + reg =3D <0>; + #address-cells =3D <1>; + #size-cells =3D <0>; + + dss0_out0: endpoint@0 { + reg =3D <0>; + remote-endpoint =3D <&oldi0_in>; + }; + + dss0_out1: endpoint@1 { + reg =3D <1>; + remote-endpoint =3D <&oldi1_in>; + }; + }; +}; + +&oldi0 { + ti,companion-oldi =3D <&oldi1>; + + status =3D "okay"; +}; + +&oldi0_port0 { + oldi0_in: endpoint { + remote-endpoint =3D <&dss0_out0>; + }; +}; + +&oldi0_port1 { + oldi0_out: endpoint { + remote-endpoint =3D <&panel_lvds_native_in0>; + }; +}; + +&oldi1 { + ti,secondary-oldi; + + status =3D "okay"; +}; + +&oldi1_port0 { + oldi1_in: endpoint { + remote-endpoint =3D <&dss0_out1>; + }; +}; + +&oldi1_port1 { + oldi1_out: endpoint { + remote-endpoint =3D <&panel_lvds_native_in1>; + }; +}; --=20 2.54.0