android10/kernel/Documentation/devicetree/bindings/display/msm/hdmi.txt

Qualcomm adreno/snapdragon hdmi output

Required properties:
- compatible: one of the following
   * "qcom,hdmi-tx-8996"
   * "qcom,hdmi-tx-8994"
   * "qcom,hdmi-tx-8084"
   * "qcom,hdmi-tx-8974"
   * "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.
- power-domains: Should be <&mmcc MDSS_GDSC>.
- clocks: device clocks
  See ../clocks/clock-bindings.txt for details.
- core-vdda-supply: phandle to supply regulator
- hdmi-mux-supply: phandle to mux regulator
- phys: the phandle for the HDMI PHY device
- phy-names: the name of the corresponding PHY device

Optional properties:
- hpd-gpios: hpd pin
- qcom,hdmi-tx-mux-en-gpios: hdmi mux enable pin
- qcom,hdmi-tx-mux-sel-gpios: hdmi mux select pin
- qcom,hdmi-tx-mux-lpm-gpios: hdmi mux lpm pin
- power-domains: reference to the power domain(s), if available.
- pinctrl-names: the pin control state names; should contain "default"
- pinctrl-0: the default pinctrl state (active)
- pinctrl-1: the "sleep" pinctrl state

HDMI PHY:
Required properties:
- compatible: Could be the following
  * "qcom,hdmi-phy-8660"
  * "qcom,hdmi-phy-8960"
  * "qcom,hdmi-phy-8974"
  * "qcom,hdmi-phy-8084"
  * "qcom,hdmi-phy-8996"
- #phy-cells: Number of cells in a PHY specifier; Should be 0.
- reg: Physical base address and length of the registers of the PHY sub blocks.
- reg-names: The names of register regions. The following regions are required:
  * "hdmi_phy"
  * "hdmi_pll"
  For HDMI PHY on msm8996, these additional register regions are required:
    * "hdmi_tx_l0"
    * "hdmi_tx_l1"
    * "hdmi_tx_l3"
    * "hdmi_tx_l4"
- power-domains: Should be <&mmcc MDSS_GDSC>.
- clocks: device clocks
  See Documentation/devicetree/bindings/clocks/clock-bindings.txt for details.
- core-vdda-supply: phandle to vdda regulator device node

Example:

/ {
	...

	hdmi: hdmi@4a00000 {
		compatible = "qcom,hdmi-tx-8960";
		reg-names = "core_physical";
		reg = <0x04a00000 0x2f0>;
		interrupts = <GIC_SPI 79 0>;
		power-domains = <&mmcc MDSS_GDSC>;
		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>;
		pinctrl-names = "default", "sleep";
		pinctrl-0 = <&hpd_active  &ddc_active  &cec_active>;
		pinctrl-1 = <&hpd_suspend &ddc_suspend &cec_suspend>;

		phys = <&hdmi_phy>;
		phy-names = "hdmi_phy";
	};

	hdmi_phy: phy@4a00400 {
		compatible = "qcom,hdmi-phy-8960";
		reg-names = "hdmi_phy",
			    "hdmi_pll";
		reg = <0x4a00400 0x60>,
		      <0x4a00500 0x100>;
		#phy-cells = <0>;
		power-domains = <&mmcc MDSS_GDSC>;
		clock-names = "slave_iface_clk";
		clocks = <&mmcc HDMI_S_AHB_CLK>;
		core-vdda-supply = <&pm8921_hdmi_mvs>;
	};
};