From 6ac77bca6ad66c6dbeaabf5c60bf6f1fef2194f8 Mon Sep 17 00:00:00 2001
From: handsomeyingyan <handsomeyingyan@github.com>
Date: Tue, 1 Dec 2020 20:30:42 +0800
Subject: [PATCH] add rgb666 support for cubieboard2
Warning : this patch is outdate touchscreen not working!!!
---
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts | 78 ++++++++++++++++++++-
 arch/arm/boot/dts/sun7i-a20.dtsi            | 13 ++++
 2 files changed, 88 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index b8203e4ef..fb34187af 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -1,7 +1,6 @@
 /*
- * Copyright 2013 Maxime Ripard
- *
- * Maxime Ripard <maxime.ripard@free-electrons.com>
+ * Copyright 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
+ * Copyright 2020 HandsomeYingyan <handsomeyingyan@gmail.com>
  *
  * This file is dual-licensed: you can use it either under the terms
  * of the GPL or the X11 license, at your option. Note that this dual
@@ -72,6 +71,38 @@ hdmi_con_in: endpoint {
 		};
 	};
 
+	backlight_display: backlight_display {
+		compatible = "pwm-backlight";
+		pwms = <&pwm 0 10000000 0>;
+		power-supply = <&reg_vcc5v0>;
+
+		brightness-levels = <0 64 93 122 151 180 209 240>;
+		default-brightness-level = <7>;
+	};
+
+	panel: panel {
+		compatible = "netron-dy,e231732", "simple-panel";
+		backlight = <&backlight_display>;
+		power-supply = <&reg_vcc5v0>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&lcd_enable_pin &lcd_rgb666_pins>;
+		enable-gpios = <&pio 1 10 GPIO_ACTIVE_HIGH>; /* PB10 */
+                	status = "okay";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			panel_input: endpoint {
+				remote-endpoint = <&tcon0_out_lcd>;
+			};
+		};
+	};
+
+
 	leds {
 		compatible = "gpio-leds";
 
@@ -141,7 +172,21 @@ axp209: pmic@34 {
 };
 
 &i2c1 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+      /*DVK522 board has a ft5406 touchscreen*/
+	ft5406ee8: touchscreen@38 {
+        compatible = "edt,edt-ft5x06","edt,edt-ft5206";
+	reg = <0x38>;
+	interrupt-parent = <&pio>;
+	interrupts = <&pio 7 7 IRQ_TYPE_EDGE_FALLING>; /* PH7 */
+	reset-gpios = <&pio 1 13 GPIO_ACTIVE_HIGH>; /* RST (PB13) */
+	touchscreen-size-x = <1024>;
+	touchscreen-size-y = <600>;
+        touchscreen-inverted-y;
 	status = "okay";
+     };
 };
 
 &ir0 {
@@ -150,6 +195,8 @@ &ir0 {
 	status = "okay";
 };
 
+
+
 &mmc0 {
 	vmmc-supply = <&reg_vcc3v3>;
 	bus-width = <4>;
@@ -235,3 +282,28 @@ &usbphy {
 	usb2_vbus-supply = <&reg_usb2_vbus>;
 	status = "okay";
 };
+
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_pin>;
+	status = "okay";
+};
+
+
+//&be0 {
+//	status = "okay";
+//};
+
+&tcon0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&lcd_rgb666_pins>;
+	status = "okay";
+};
+
+&tcon0_out {
+	tcon0_out_lcd: endpoint@0 {
+		reg = <0>;
+		remote-endpoint = <&panel_input>;
+	};
+};
+
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 6d6a37940..d41f0575f 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -948,6 +948,19 @@ lcd_lvds1_pins: lcd-lvds1-pins {
 				function = "lvds1";
 			};
 
+	                lcd_enable_pin: lcd_enable_pin@0 {
+		                pins = "PB10";
+				function = "gpio_out";
+			};
+
+			lcd_rgb666_pins: lcd-rgb666@0 {
+				pins = "PD2", "PD3", "PD4", "PD5", "PD6", "PD7",
+				       "PD10", "PD11", "PD12", "PD13", "PD14", "PD15",
+				       "PD18", "PD19", "PD20", "PD21", "PD22", "PD23",
+				       "PD24", "PD25", "PD26", "PD27";
+				function = "lcd0";
+			};
+
 			/omit-if-no-ref/
 			mmc0_pins: mmc0-pins {
 				pins = "PF0", "PF1", "PF2",
-- 
2.25.1