itop4412 linux-4.14.2 hdmi设备树

待验证

CONFIG_DRM_EXYNOS_HDMI=y

&pinctrl_1 {
	hdmi_hpd: hdmi-hpd {
		samsung,pins = "gpx3-7";
		samsung,pin-function = ;
		samsung,pin-pud = ;
		samsung,pin-drv = ;
	};
	
	hdmi_i2c_en: hdmi-i2c-en {
		samsung,pins = "gpl0-6";
		samsung,pin-function = ;
		samsung,pin-pud = ;
		samsung,pin-drv = ;
	};
};

&hdmi {
	hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
	pinctrl-names = "default";
	pinctrl-0 = <&hdmi_hpd &hdmi_i2c_en>;
	hdmi-en-supply = <&hdmi_en>;
	vdd-supply = <&ldo3_reg>;
	vdd_osc-supply = <&ldo4_reg>;
	vdd_pll-supply = <&ldo3_reg>;
	ddc = <&i2c_0>;
	phy = <&hdmi_i2c_phy>;
	
	status = "okay";
};

&i2c_0 {
	status = "okay";

	samsung,i2c-sda-delay = <100>;
	samsung,i2c-max-bus-freq = <66000>;
	samsung,i2c-slave-addr = <0x38>;
	
	hdmi_i2c_phy: hdmiphy@38 {
		compatible = "samsung,exynos4212-hdmiphy";
		reg = <0x38>;
	};
};