overlays/colibri-imx8x_dsihdmi_overlay.dts


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// Enable the dsi to hdmi adapter orderable at Toradex for Colibri iMX8X

#include "dt-bindings/gpio/gpio.h"
#include "dt-bindings/pinctrl/pads-imx8qxp.h"

/dts-v1/;
/plugin/;
/ {
	compatible = "toradex,colibri-imx8x";
};

&i2c0_mipi_lvds0 {
	status = "okay";

	#address-cells = <1>;
	#size-cells = <0>;

	/* DSI to HDMI Adapter V1.1A */
	i2c-switch@70 {
		compatible = "nxp,pca9540";
		#address-cells = <1>;
		#size-cells = <0>;
		reg = <0x70>;
		i2c-mux-idle-disconnect;

		i2c_sw0: i2c-sw@0 {
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <0>;

			/* DDC/EDID */
		};

		i2c-sw@1 {
			#address-cells = <1>;
			#size-cells = <0>;
			reg = <1>;

			lt8912@48 {
				compatible = "lontium,lt8912";
				ddc-i2c-bus = <&i2c_sw0>;
				hpd-gpios = <&lsio_gpio1 31 GPIO_ACTIVE_HIGH>;
				pinctrl-names = "default";
				pinctrl-0 = <&pinctrl_gpio_hpd>;
				reg = <0x48>;

				port {
					lt8912_1_in: endpoint {
						remote-endpoint = <&mipi0_dsi_host_out>;
					};
				};
			};
		};
	};
};

&iomuxc {
	colibri-imx8qxp {
		/* DSI/LVDS Hot Plug Detect on FFC (X2) */
		pinctrl_gpio_hpd: gpio-hpd {
			fsl,pins = <
				IMX8QXP_MIPI_DSI1_GPIO0_00_LSIO_GPIO1_IO31		0x20		/* SODIMM 138 */
			>;
		};
	};
};

&ldb1 {
	status = "disabled";
};

&ldb1_phy {
	status = "disabled";
};

&ldb2 {
	status = "okay";
};

&ldb2_phy {
	status = "okay";
};

&mipi0_dsi_host {
	status = "okay";

	#address-cells = <1>;
	#size-cells = <0>;

	port@1 {
		reg = <1>;
		mipi0_dsi_host_out: endpoint {
			remote-endpoint = <&lt8912_1_in>;
		};
	};
};

&mipi0_dphy {
	status = "okay";
};

&mipi1_dsi_host {
	status = "okay";
};