arm64: dts: ti: k3-am68-phyboard-izar: Add LVDS-Display

Add an overlay to use a powertip,ph128800t006-zhc01 10.1" LVDS display.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
Link: https://patch.msgid.link/20260320212349.420951-4-d.haller@phytec.de
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Author: dominiknh90

arch/arm64/boot/dts/ti/Makefile

@@ -132,6 +132,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721e-sk-csi2-dual-imx219.dtbo
 
 # Boards with J721s2 SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am68-phyboard-izar.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am68-phyboard-izar-lvds-ph128800t006.dtb
+k3-am68-phyboard-izar-lvds-ph128800t006-dtbs := k3-am68-phyboard-izar.dtb \
+	k3-am68-phyboard-izar-lvds-ph128800t006.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board-pcie1-ep.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb
@@ -306,6 +309,7 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
+	k3-am68-phyboard-izar-lvds-ph128800t006.dtb \
 	k3-am68-sk-base-board-csi2-dual-imx219.dtb \
 	k3-am68-sk-base-board-pcie1-ep.dtb \
 	k3-am69-sk-csi2-dual-imx219.dtb \

arch/arm64/boot/dts/ti/k3-am68-phyboard-izar-lvds-ph128800t006.dtso

@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2026 PHYTEC Messtechnik GmbH
+ * Author: Dominik Haller <d.haller@phytec.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "k3-pinctrl.h"
+
+&{/} {
+	backlight_lvds: backlight {
+		compatible = "pwm-backlight";
+		brightness-levels = <0 32 64 96 128 160 192 224 255>;
+		default-brightness-level = <6>;
+		enable-gpios = <&exp2 12 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&backlight_pins_default>;
+		power-supply = <&bl_12v>;
+		pwms = <&main_ehrpwm0 1 44000 0>;
+	};
+
+	bl_12v: regulator-backlight {
+		compatible = "regulator-fixed";
+		enable-active-high;
+		gpio = <&exp2 13 GPIO_ACTIVE_HIGH>;
+		regulator-name = "BL_12V";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+	};
+
+	panel-lvds {
+		compatible = "powertip,ph128800t006-zhc01";
+		backlight = <&backlight_lvds>;
+		power-supply = <&vcc_5v0>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&panel_bridge_out>;
+			};
+		};
+	};
+};
+
+&main_pmx0 {
+	backlight_pins_default: backlight-default-pins {
+		pinctrl-single,pins = <
+			J721S2_IOPAD(0x064, PIN_OUTPUT, 9) /* (W28) MCAN0_TX.EHRPWM0_B */
+		>;
+	};
+};
+
+&dphy_tx0 {
+	status = "okay";
+};
+
+&dss {
+	status = "okay";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@2 {
+		reg = <2>;
+		dpi2_out: endpoint {
+			remote-endpoint = <&dsi0_in>;
+		};
+	};
+};
+
+&dsi0 {
+	status = "okay";
+};
+
+&dsi0_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@0 {
+		reg = <0>;
+		dsi0_out: endpoint {
+			remote-endpoint = <&panel_bridge_in>;
+		};
+	};
+
+	port@1 {
+		reg = <1>;
+		dsi0_in: endpoint {
+			remote-endpoint = <&dpi2_out>;
+		};
+	};
+};
+
+&main_ehrpwm0 {
+	status = "okay";
+};
+
+&sn65dsi83 {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			panel_bridge_in: endpoint {
+				remote-endpoint = <&dsi0_out>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+
+		port@2 {
+			reg = <2>;
+			panel_bridge_out: endpoint {
+				remote-endpoint = <&panel_in>;
+			};
+		};
+	};
+};