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Date:   Tue, 21 Aug 2018 14:58:36 +0200
From:   Yannick Fertré <yannick.fertre@...com>
To:     Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     Benjamin Gaignard <benjamin.gaignard@...com>,
        Yannick Fertre <yannick.fertre@...com>,
        Patrice Chotard <patrice.chotard@...com>,
        "Philippe Cornu" <philippe.cornu@...com>
Subject: [PATCH] ARM: dts: stm32: enable display on stm32mp157c-ev1 board

Enable panel raydium RM68200, DSI bridge & display controller.

Signed-off-by: Yannick Fertré <yannick.fertre@...com>
---
 arch/arm/boot/dts/stm32mp157c-ev1.dts | 60 +++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts
index 372bc2e..cd9062a 100644
--- a/arch/arm/boot/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "stm32mp157c-ed1.dts"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "STMicroelectronics STM32MP157C eval daughter on eval mother";
@@ -19,6 +20,12 @@
 		serial0 = &uart4;
 		ethernet0 = &ethernet0;
 	};
+	panel_backlight: panel-backlight {
+		compatible = "gpio-backlight";
+		gpios = <&gpiod 13 GPIO_ACTIVE_LOW>;
+		default-on;
+		status = "okay";
+	};
 };
 
 &ethernet0 {
@@ -46,6 +53,45 @@
 	status = "okay";
 };
 
+&dsi {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			dsi_in: endpoint {
+				remote-endpoint = <&ltdc_ep0_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dsi_out: endpoint {
+				remote-endpoint = <&dsi_panel_in>;
+			};
+		};
+	};
+
+	panel-dsi@0 {
+		compatible = "raydium,rm68200";
+		reg = <0>;
+		reset-gpios = <&gpiof 15 GPIO_ACTIVE_LOW>;
+		backlight = <&panel_backlight>;
+		status = "okay";
+
+		port {
+			dsi_panel_in: endpoint {
+				remote-endpoint = <&dsi_out>;
+			};
+		};
+	};
+};
+
 &i2c2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_pins_a>;
@@ -62,6 +108,20 @@
 	status = "okay";
 };
 
+&ltdc {
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&dsi_in>;
+		};
+	};
+};
+
 &m_can1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&m_can1_pins_a>;
-- 
2.7.4

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