ODROID-N2: Add display_vu7 overlay.

If user wants display_vu7c without I2S (7 Pin GPIOs),
Use display_vu7 instead of display_vu7c.

Change-Id: I96dd52e8421f7ee6487cf3fc0840fa293320530b

MAINTAINERS

@@ -15268,3 +15268,8 @@ DTS OVERLAY FOR VU12 PWM BACKLIGHT
 M:	Chris KIM <codewalker@hardkernel.com>
 F:	arch/arm64/boot/dts/amlogic/overlays/odroidn2/pwm_backlight_for_vu12.dts
 F:	arch/arm64/boot/dts/amlogic/overlays/odroidc4/pwm_backlight_for_vu12.dts
+
+DTS OVERLAY FOR display_vu7c
+M:	Chris KIM <codewalker@hardkernel.com>
+F:	arch/arm64/boot/dts/amlogic/overlays/odroidn2/display_vu7.dts
+F:	arch/arm64/boot/dts/amlogic/overlays/odroidn2/display_vu7c.dts

arch/arm64/boot/dts/amlogic/overlays/odroidn2/Makefile

@@ -5,6 +5,7 @@ dtbo-$(CONFIG_ARCH_MESON64_ODROIDN2) +=	\
 					can0.dtbo		\
 					codec_mm_cma.dtbo	\
 					display_vu7c.dtbo	\
+					display_vu7.dtbo	\
 					fanspeed-full.dtbo		\
 					gpio_shortcut.dtbo \
 					gpio_spdif.dtbo	\

arch/arm64/boot/dts/amlogic/overlays/odroidn2/display_vu7.dts

@@ -0,0 +1,111 @@
+/*
+ * arch/arm64/boot/dts/amlogic/overlays/odroidn2/display_vu7c.dts
+ *
+ * Copyright (C) 2022 Hardkernel, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/meson-g12a-gpio.h>
+#include <dt-bindings/gpio/gpio.h>
+
+#include <dt-bindings/pwm/meson.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/{
+	fragment@0 {
+		target = <&i2c1>;
+		__overlay__ {
+			status = "okay";
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c1_master_pins1>;
+			clock-frequency = <100000>;	/* default 100k */
+
+			lt8619c: hdmi-bridge@32 {
+				compatible = "lt8619c";
+				reg = <0x32>;
+				reset-gpios = <&gpio GPIOX_19 GPIO_ACTIVE_LOW>;
+			};
+		};
+	};
+	fragment@1 {
+		target = <&pwm_ef>;
+		__overlay__ {
+			status = "okay";
+			pinctrl-names = "pwm_pins";
+			pinctrl-0 = <&pwm_e_pins>;
+		};
+	};
+	fragment@2 {
+		target-path = "/";
+		__overlay__ {
+			backlight: backlight {
+				compatible = "pwm-backlight";
+				pwms = <&pwm_ef MESON_PWM_0 40000 0>;
+				brightness-levels = <
+					  0   1   2   3   4   5   6   7
+					  8   9  10  11  12  13  14  15
+					 16  17  18  19  20  21  22  23
+					 24  25  26  27  28  29  30  31
+					 32  33  34  35  36  37  38  39
+					 40  41  42  43  44  45  46  47
+					 48  49  50  51  52  53  54  55
+					 56  57  58  59  60  61  62  63
+					 64  65  66  67  68  69  70  71
+					 72  73  74  75  76  77  78  79
+					 80  81  82  83  84  85  86  87
+					 88  89  90  91  92  93  94  95
+					 96  97  98  99 100 101 102 103
+					104 105 106 107 108 109 110 111
+					112 113 114 115 116 117 118 119
+					120 121 122 123 124 125 126 127
+					128 129 130 131 132 133 134 135
+					136 137 138 139 140 141 142 143
+					144 145 146 147 148 149 150 151
+					152 153 154 155 156 157 158 159
+					160 161 162 163 164 165 166 167
+					168 169 170 171 172 173 174 175
+					176 177 178 179 180 181 182 183
+					184 185 186 187 188 189 190 191
+					192 193 194 195 196 197 198 199
+					200 201 202 203 204 205 206 207
+					208 209 210 211 212 213 214 215
+					216 217 218 219 220 221 222 223
+					224 225 226 227 228 229 230 231
+					232 233 234 235 236 237 238 239
+					240 241 242 243 244 245 246 247
+					248 249 250 251 252 253 254 255>;
+				default-brightness-level = <200>;
+			};
+		};
+	};
+	fragment@3 {
+		target = <&i2c3>;
+		__overlay__ {
+			status = "okay";
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c3_master_pins2>;
+			clock-frequency = <400000>; /* default 400k */
+
+			touch: gt9xx@14 {
+				compatible = "goodix,gt911";
+				status = "okay";
+				reg = <0x14>;
+				reset-gpios = <&gpio GPIOX_15 0x00>;
+				irq-gpios = <&gpio GPIOX_14 0x00>;
+			};
+		};
+	};
+};