feat: add CM3 LVDS overlay

Signed-off-by: ZHANG Yuntian <[email protected]>

Author: RadxaYuntian

arch/arm64/boot/dts/rockchip/overlays/Makefile

@@ -149,6 +149,7 @@ dtb-$(CONFIG_CLK_RK3568) += \
 	radxa-cm3-io-radxa-camera-8m-cam2.dtbo \
 	radxa-cm3-io-rpi-camera-v1p3-ov5647-cam1.dtbo \
 	radxa-cm3-io-rpi-camera-v1p3-ov5647-cam2.dtbo \
+	radxa-cm3-lvds-boe-mv185whb-n20.dtbo \
 	radxa-cm3-radxa-taco-pcie2x1.dtbo \
 	radxa-cm3-raspcm4io-pcie2x1.dtbo \
 	radxa-cm3-rpi-cm4-7inch-touchscreen-disp0.dtbo \

arch/arm64/boot/dts/rockchip/overlays/radxa-cm3-lvds-boe-mv185whb-n20.dts

@@ -0,0 +1,155 @@
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include <dt-bindings/pwm/pwm.h>
+
+/ {
+	metadata {
+		title = "Enable BOE MV185WHB-N20 LVDS Display";
+		compatible = "unknown";
+		category = "display";
+		exclusive = "lvds", "pwm6";
+		description = "Enable BOE MV185WHB-N20 LVDS Display.";
+	};
+};
+
+&{/} {
+	backlight_lvds: backlight-lvds {
+		status = "okay";
+		compatible = "pwm-backlight";
+		pwms = <&pwm6 0 25000 PWM_POLARITY_INVERTED>;
+		brightness-levels = <
+			0  20  20  21  21  22  22  23
+			23  24  24  25  25  26  26  27
+			27  28  28  29  29  30  30  31
+			31  32  32  33  33  34  34  35
+			35  36  36  37  37  38  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 = <50>;
+		enable-gpios = <&gpio3 RK_PA7 GPIO_ACTIVE_HIGH>;
+	};
+
+	vcc3v3_lcd_lvds: vcc3v3-lcd-lvds {
+		status = "okay";
+		compatible = "regulator-fixed";
+		gpio = <&gpio0 RK_PB0 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		regulator-name = "vcc3v3_lcd_lvds";
+		regulator-boot-on;
+		regulator-state-mem {
+			regulator-off-in-suspend;
+		};
+	};
+
+	lvds_panel: lvds-panel {
+		status = "okay";
+		compatible = "simple-panel";
+		backlight = <&backlight_lvds>;
+		power-supply = <&vcc3v3_lcd_lvds>;
+		pinctrl-names = "default";
+		rockchip,data-mapping = "vesa"; // LVDS Data Format
+		prepare-delay-ms = <100>;
+		enable-delay-ms = <10>;
+		display-timings {
+			native-mode = <&timing1>;
+			timing1: timing1 {
+				clock-frequency = <65000000>;
+				hactive = <1366>;
+				vactive = <768>;
+				hfront-porch = <200>;
+				hsync-len = <52>;
+				hback-porch = <200>;
+				vfront-porch = <25>;
+				vsync-len = <4>;
+				vback-porch = <25>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <0>;
+			};
+		};
+
+		ports {
+			panel_in_lvds: endpoint {
+					remote-endpoint = <&lvds_out_panel>;
+			};
+		};
+	};
+};
+
+&pwm6 {
+	status = "okay";
+};
+
+&video_phy0 {
+	status = "okay";
+};
+
+&lvds {
+	status = "okay";
+
+	ports {
+		port@1 {
+			reg = <1>;
+
+			lvds_out_panel: endpoint {
+				remote-endpoint = <&panel_in_lvds>;
+			};
+		};
+	};
+};
+
+
+&lvds_in_vp1 {
+	status = "okay";
+};
+
+&lvds_in_vp2 {
+	status = "disabled";
+};
+
+&route_lvds {
+	status = "okay";
+	connect = <&vp1_out_lvds>;
+};
+
+&pinctrl {
+	lvds-lcd {
+		vcc3v3_lcd_lvds_en: vcc3v3-lcd-lvds-en {
+			rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		cabc_en_en: cabc-en-en {
+			rockchip,pins = <1 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+};