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linux-7.2.3/arch/arm64/boot/dts/ti/k3-am625-verdin-panel-cap-touch-10inch-lvds.dtso

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+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) Toradex
+ *
+ * Toradex Capacitive Touch Display 10.1" connected via Verdin AM62 OLDI
+ * on carrier boards with a Toradex standard LVDS display connector
+ * (e.g., Mallow).
+ *
+ * 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/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/pwm/pwm.h>
+#include "k3-pinctrl.h"
+
+&{/} {
+	backlight_pwm2: backlight-pwm2 {
+		compatible = "pwm-backlight";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_i2s_2_d_out_gpio>;
+		brightness-levels = <0 45 63 88 119 158 203 255>;
+		default-brightness-level = <4>;
+		/* Verdin I2S_2_D_OUT as GPIO (SODIMM 46) */
+		enable-gpios = <&main_gpio0 34 GPIO_ACTIVE_HIGH>;
+		/* Verdin PWM_2 (SODIMM 16) */
+		pwms = <&epwm0 1 6666667 PWM_POLARITY_INVERTED>;
+	};
+
+	panel-lvds-native {
+		compatible = "logictechno,lt170410-2whc";
+		backlight = <&backlight_pwm2>;
+		power-supply = <&reg_3v3_lvds>;
+
+		port {
+			panel_lvds_native_in: endpoint {
+				remote-endpoint = <&oldi0_out>;
+			};
+		};
+	};
+
+	reg_3v3_lvds: regulator-3v3-lvds {
+		compatible = "regulator-fixed";
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "+V3.3_LVDS";
+	};
+};
+
+&dss {
+	status = "okay";
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	/* DSS VP1: internal DPI output to OLDIx */
+	port@0 {
+		reg = <0>;
+
+		dss0_out: endpoint {
+			remote-endpoint = <&oldi0_in>;
+		};
+	};
+};
+
+/* Verdin I2C_2_DSI */
+&main_i2c2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	touchscreen@4a {
+		compatible = "atmel,maxtouch";
+		reg = <0x4a>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_i2s_2_d_in_gpio>, <&pinctrl_i2s_2_sync_gpio>;
+		/* Verdin I2S_2_SYNC as GPIO (SODIMM 44) */
+		interrupt-parent = <&main_gpio0>;
+		interrupts = <37 IRQ_TYPE_EDGE_FALLING>;
+		/* Verdin I2S_2_D_IN as GPIO (SODIMM 48) */
+		reset-gpios = <&main_gpio0 33 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&main_pmx0 {
+	/* Mallow Touch RST */
+	pinctrl_i2s_2_d_in_gpio: main-gpio0-33-default-pins {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x0088, PIN_INPUT, 7) /* (L24) GPMC0_OEn_REn.GPIO0_33 */ /* SODIMM 48 */
+		>;
+	};
+
+	/* Mallow Touch INT# */
+	pinctrl_i2s_2_sync_gpio: main-gpio0-37-default-pins {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x0098, PIN_INPUT, 7) /* (U23) GPMC0_WAIT0.GPIO0_37 */ /* SODIMM 44 */
+		>;
+	};
+};
+
+&oldi0 {
+	status = "okay";
+};
+
+&oldi0_port0 {
+	oldi0_in: endpoint {
+		remote-endpoint = <&dss0_out>;
+	};
+};
+
+&oldi0_port1 {
+	oldi0_out: endpoint {
+		remote-endpoint = <&panel_lvds_native_in>;
+	};
+};