📒 笔记文档

这个是内核设备树，uboot拿的是内核设备树来使用

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/rockchip.h>
#include <dt-bindings/display/media-bus-format.h>
#include <dt-bindings/clock/rv1106-cru.h>

/ {
	backlight: backlight {
		status = "okay";
		compatible = "gpio-backlight";
		gpios = <&gpio1 RK_PB0 GPIO_ACTIVE_HIGH>;
		default-on;
		power-supply = <&vcc_3v3>;
	};

	panel: panel {
		compatible = "lh,lh24030c50", "simple-panel"; 
		reset-gpios = <&gpio1 RK_PB1 GPIO_ACTIVE_LOW>; //内核不用，uboot用到
		spi-scl-gpios = <&gpio4 RK_PA7 GPIO_ACTIVE_HIGH>;//内核不用，uboot用到
		spi-sdi-gpios = <&gpio4 RK_PA1 GPIO_ACTIVE_HIGH>;//内核不用，uboot用到
		spi-cs-gpios = <&gpio4 RK_PA5 GPIO_ACTIVE_HIGH>;//内核不用，uboot用到
		bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
		bpc = <6>;
		backlight = <&backlight>;
		power-supply = <&vcc_3v3>;
		status = "okay";

		display-timings {
			native-mode = <&timing0>;

			timing0: panel-timing {
				clock-frequency = <7000000>;
				hactive = <240>;
				vactive = <320>;
				hfront-porch = <38>;
				hback-porch = <10>;
				hsync-len = <10>;
				vfront-porch = <8>;
				vback-porch = <4>;
				vsync-len = <4>;
				hsync-active = <0>;
				vsync-active = <0>;
				de-active = <1>;
				pixelclk-active = <0>;
			};
		};

		port {
			panel_in_rgb: endpoint {
				remote-endpoint = <&rgb_out_panel>;
			};
		};
	};

	reserved-memory {
		#address-cells = <1>;
		#size-cells = <1>;
		ranges;

		drm_logo: drm-logo@00000000 {
			compatible = "rockchip,drm-logo";
			reg = <0x0 0x0>;
		};
	};
};

&display_subsystem {
	status = "okay";
	logo-memory-region = <&drm_logo>;

	/* U-Boot route node: 内核忽略此节点，仅 U-Boot 使用 */
	route {
		route_rgb: route-rgb {
			status = "okay";
			connect = <&vop_out_rgb>;
			logo,uboot = "logo.bmp";
			logo,kernel = "logo.bmp";
			logo,mode = "center";
			charge_logo,mode = "center";
		};
	};
};

&rgb {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&lcd_pins>;
	ports {
		rgb_out: port@1 {
			reg = <1>;
			#address-cells = <1>;
			#size-cells = <0>;

			rgb_out_panel: endpoint@0 {
				reg = <0>;
				remote-endpoint = <&panel_in_rgb>;
			};
		};
	};
};

&rgb_in_vop {
	status = "okay";
};

&route_rgb {
	status = "okay";
};
&vop {
	assigned-clocks = <&cru PLL_CPLL>;
	assigned-clock-rates = <216000000>;
	status = "okay";
};