From: Svyatoslav Ryhel <clamor95@gmail.com>
Date: Mon, 26 Jan 2026 10:10:15 +0000 (+0200)
Subject: ARM: tegra: lg-x3: Add panel and bridge nodes
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e045ba8a5684ec7a7821ede67c5f305609d6236c;p=thirdparty%2Fkernel%2Fstable.git

ARM: tegra: lg-x3: Add panel and bridge nodes

Add RGB-DSI bridge and panel nodes to LG Optimus 4X and Vu device trees.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---

diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
index c6ef0a20c19f..cc14e6dca770 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p880.dts
@@ -116,6 +116,29 @@
 		};
 	};
 
+	spi@7000dc00 {
+		dsi@2 {
+			/*
+			 * JDI 4.57" 720x1280 DX12D100VM0EAA MIPI DSI panel
+			 */
+			panel@1 {
+				compatible = "jdi,dx12d100vm0eaa", "renesas,r69328";
+				reg = <1>;
+
+				reset-gpios = <&gpio TEGRA_GPIO(W, 0) GPIO_ACTIVE_LOW>;
+
+				vdd-supply = <&vcc_3v0_lcd>;
+				vddio-supply = <&iovcc_1v8_lcd>;
+
+				port {
+					panel_input: endpoint {
+						remote-endpoint = <&bridge_output>;
+					};
+				};
+			};
+		};
+	};
+
 	memory-controller@7000f000 {
 		emc-timings-0 {
 			/* SAMSUNG 1GB K4P8G304EB FGC1 533MHz */
diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
index e32fafc7f5e0..ab8f5cf317bf 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-p895.dts
@@ -112,6 +112,33 @@
 		};
 	};
 
+	spi@7000dc00 {
+		dsi@2 {
+			/*
+			 * HITACHI/KOE 5" 768x1024 TX13D100VM0EAA MIPI DSI panel
+			 */
+			panel@1 {
+				compatible = "koe,tx13d100vm0eaa", "renesas,r61307";
+				reg = <1>;
+
+				reset-gpios = <&gpio TEGRA_GPIO(W, 0) GPIO_ACTIVE_LOW>;
+
+				renesas,gamma = <3>;
+				renesas,column-inversion;
+				renesas,contrast;
+
+				vcc-supply = <&vcc_3v0_lcd>;
+				iovcc-supply = <&iovcc_1v8_lcd>;
+
+				port {
+					panel_input: endpoint {
+						remote-endpoint = <&bridge_output>;
+					};
+				};
+			};
+		};
+	};
+
 	memory-controller@7000f000 {
 		emc-timings-2 {
 			/* Hynix 1GB H9TCNNN8JDMMPR LPDDR2 533MHz */
diff --git a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
index 909260a5d0fb..6eea8eacd7d5 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra30-lg-x3.dtsi
@@ -20,6 +20,8 @@
 		rtc0 = &pmic;
 		rtc1 = "/rtc@7000e000";
 
+		display0 = &lcd;
+
 		serial0 = &uartd; /* Console */
 		serial1 = &uartc; /* Bluetooth */
 		serial2 = &uartb; /* GPS */
@@ -71,6 +73,21 @@
 		};
 	};
 
+	host1x@50000000 {
+		lcd: dc@54200000 {
+			rgb {
+				status = "okay";
+
+				port {
+					dpi_output: endpoint {
+						remote-endpoint = <&bridge_input>;
+						bus-width = <24>;
+					};
+				};
+			};
+		};
+	};
+
 	vde@6001a000 {
 		assigned-clocks = <&tegra_car TEGRA30_CLK_VDE>;
 		assigned-clock-parents = <&tegra_car TEGRA30_CLK_PLL_P>;
@@ -1357,7 +1374,58 @@
 		status = "okay";
 		spi-max-frequency = <25000000>;
 
-		/* DSI bridge */
+		dsi@2 {
+			compatible = "solomon,ssd2825";
+			reg = <2>;
+
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			spi-max-frequency = <1000000>;
+
+			spi-cpha;
+			spi-cpol;
+
+			reset-gpios = <&gpio TEGRA_GPIO(O, 2) GPIO_ACTIVE_LOW>;
+
+			dvdd-supply = <&vdd_1v2_rgb>;
+			avdd-supply = <&vdd_1v2_rgb>;
+			vddio-supply = <&vdd_1v8_vio>;
+
+			solomon,hs-zero-delay-ns = <300>;
+			solomon,hs-prep-delay-ns = <65>;
+
+			clocks = <&tegra_pmc TEGRA_PMC_CLK_OUT_3>;
+
+			assigned-clocks = <&tegra_car TEGRA30_CLK_EXTERN3>,
+					  <&tegra_pmc TEGRA_PMC_CLK_OUT_3>;
+			assigned-clock-rates = <24000000>;
+
+			assigned-clock-parents = <&tegra_car TEGRA30_CLK_PLL_P>,
+						 <&tegra_car TEGRA30_CLK_EXTERN3>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					bridge_input: endpoint {
+						remote-endpoint = <&dpi_output>;
+						bus-width = <24>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					bridge_output: endpoint {
+						remote-endpoint = <&panel_input>;
+					};
+				};
+			};
+		};
 	};
 
 	pmc@7000e400 {
@@ -1617,6 +1685,17 @@
 		vin-supply = <&vdd_3v3_vbat>;
 	};
 
+	vdd_1v2_rgb: regulator-rgb1v2 {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_1v2_rgb";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		regulator-boot-on;
+		gpio = <&gpio TEGRA_GPIO(B, 1) GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&vdd_3v3_vbat>;
+	};
+
 	vcc_3v0_lcd: regulator-lcd3v {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_3v0_lcd";