overlays/verdin-imx8mm_lt8912_overlay.dts


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// Verdin DSI to HDMI Adapter orderable at Toradex.

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>

/ {
	compatible = "toradex,verdin-imx8mm";
};

&{/soc@0/bus@32c00000/display-subsystem} {
	status = "okay";
};

/* Verdin I2C_2_DSI */
&i2c2 {
	clock-frequency = <10000>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_i2c2>;
	status = "okay";
};

/* Verdin I2C_1 */
&i2c4 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";

	hdmi@48 {
		compatible = "lontium,lt8912";
		ddc-i2c-bus = <&i2c2>;
		/* Verdin MEZ_DSI_1_INT HPD (SODIMM 17) shared with MEZ_GPIO_1 (SODIMM 206) */
		hpd-gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>;
		pinctrl-names = "default";
		pinctrl-0 = <&pinctrl_mez_dsi_1_int_hpd>, <&pinctrl_mez_gpio1>,
			    <&pinctrl_mez_gpio2>;
		reg = <0x48>;
		/* Verdin MEZ_GPIO_2 (SODIMM 208) */
		reset-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>;

		port {
			lt8912_1_in: endpoint {
				remote-endpoint = <&mipi_dsi_bridge1_out>;
			};
		};
	};
};

&lcdif {
	status = "okay";
};

&mipi_dsi {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";

	port@1 {
		reg = <1>;

		mipi_dsi_bridge1_out: endpoint {
			remote-endpoint = <&lt8912_1_in>;
			attach-bridge;
		};
	};
};

&gpu {
	status = "okay";
};