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Qualcomm adreno/snapdragon hdmi output

Required properties:
- compatible: one of the following
   * "qcom,hdmi-tx-8084"
   * "qcom,hdmi-tx-8074"
   * "qcom,hdmi-tx-8660"
   * "qcom,hdmi-tx-8960"
- reg: Physical base address and length of the controller's registers
- reg-names: "core_physical"
- interrupts: The interrupt signal from the hdmi block.
- clocks: device clocks
  See ../clocks/clock-bindings.txt for details.
- qcom,hdmi-tx-ddc-clk-gpio: ddc clk pin
- qcom,hdmi-tx-ddc-data-gpio: ddc data pin
- qcom,hdmi-tx-hpd-gpio: hpd pin
- core-vdda-supply: phandle to supply regulator
- hdmi-mux-supply: phandle to mux regulator

Optional properties:
- qcom,hdmi-tx-mux-en-gpio: hdmi mux enable pin
- qcom,hdmi-tx-mux-sel-gpio: hdmi mux select pin

Example:

/ {
	...

	hdmi: qcom,hdmi-tx-8960@4a00000 {
		compatible = "qcom,hdmi-tx-8960";
		reg-names = "core_physical";
		reg = <0x04a00000 0x1000>;
		interrupts = <GIC_SPI 79 0>;
		clock-names =
		    "core_clk",
		    "master_iface_clk",
		    "slave_iface_clk";
		clocks =
		    <&mmcc HDMI_APP_CLK>,
		    <&mmcc HDMI_M_AHB_CLK>,
		    <&mmcc HDMI_S_AHB_CLK>;
		qcom,hdmi-tx-ddc-clk = <&msmgpio 70 GPIO_ACTIVE_HIGH>;
		qcom,hdmi-tx-ddc-data = <&msmgpio 71 GPIO_ACTIVE_HIGH>;
		qcom,hdmi-tx-hpd = <&msmgpio 72 GPIO_ACTIVE_HIGH>;
		core-vdda-supply = <&pm8921_hdmi_mvs>;
		hdmi-mux-supply = <&ext_3p3v>;
	};
};