xref: /linux/Documentation/devicetree/bindings/display/bridge/ite,it6263.yaml (revision c771600c6af14749609b49565ffb4cac2959710d)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/bridge/ite,it6263.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ITE IT6263 LVDS to HDMI converter

maintainers:
  - Liu Ying <victor.liu@nxp.com>

description: |
  The IT6263 is a high-performance single-chip De-SSC(De-Spread Spectrum) LVDS
  to HDMI converter.  Combined with LVDS receiver and HDMI 1.4a transmitter,
  the IT6263 supports LVDS input and HDMI 1.4 output by conversion function.
  The built-in LVDS receiver can support single-link and dual-link LVDS inputs,
  and the built-in HDMI transmitter is fully compliant with HDMI 1.4a/3D, HDCP
  1.2 and backward compatible with DVI 1.0 specification.

  The IT6263 also encodes and transmits up to 8 channels of I2S digital audio,
  with sampling rate up to 192KHz and sample size up to 24 bits. In addition,
  an S/PDIF input port takes in compressed audio of up to 192KHz frame rate.

  The newly supported High-Bit Rate(HBR) audio by HDMI specifications v1.3 is
  provided by the IT6263 in two interfaces: the four I2S input ports or the
  S/PDIF input port.  With both interfaces the highest possible HBR frame rate
  is supported at up to 768KHz.

allOf:
  - $ref: /schemas/display/lvds-dual-ports.yaml#

properties:
  compatible:
    const: ite,it6263

  reg:
    maxItems: 1

  clocks:
    maxItems: 1
    description: audio master clock

  clock-names:
    const: mclk

  data-mapping:
    enum:
      - jeida-18
      - jeida-24
      - jeida-30
      - vesa-24
      - vesa-30

  reset-gpios:
    maxItems: 1

  ivdd-supply:
    description: 1.8V digital logic power

  ovdd-supply:
    description: 3.3V I/O pin power

  txavcc18-supply:
    description: 1.8V HDMI analog frontend power

  txavcc33-supply:
    description: 3.3V HDMI analog frontend power

  pvcc1-supply:
    description: 1.8V HDMI frontend core PLL power

  pvcc2-supply:
    description: 1.8V HDMI frontend filter PLL power

  avcc-supply:
    description: 3.3V LVDS frontend power

  anvdd-supply:
    description: 1.8V LVDS frontend analog power

  apvdd-supply:
    description: 1.8V LVDS frontend PLL power

  "#sound-dai-cells":
    const: 0

  ite,i2s-audio-fifo-sources:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    minItems: 1
    maxItems: 4
    items:
      enum: [0, 1, 2, 3]
    description:
      Each array element indicates the pin number of an I2S serial data input
      line which is connected to an audio FIFO, from audio FIFO0 to FIFO3.

  ite,rl-channel-swap-audio-sources:
    $ref: /schemas/types.yaml#/definitions/uint32-array
    minItems: 1
    maxItems: 4
    uniqueItems: true
    items:
      enum: [0, 1, 2, 3]
    description:
      Each array element indicates an audio source whose right channel and left
      channel are swapped by this converter. For I2S, the element is the pin
      number of an I2S serial data input line. For S/PDIF, the element is always
      0.

  ports:
    $ref: /schemas/graph.yaml#/properties/ports

    properties:
      port@0: true

      port@1:
        oneOf:
          - required: [dual-lvds-odd-pixels]
          - required: [dual-lvds-even-pixels]

      port@2:
        $ref: /schemas/graph.yaml#/properties/port
        description: video port for the HDMI output

      port@3:
        $ref: /schemas/graph.yaml#/properties/port
        description: sound input port

    required:
      - port@0
      - port@2

required:
  - compatible
  - reg
  - data-mapping
  - ivdd-supply
  - ovdd-supply
  - txavcc18-supply
  - txavcc33-supply
  - pvcc1-supply
  - pvcc2-supply
  - avcc-supply
  - anvdd-supply
  - apvdd-supply

unevaluatedProperties: false

examples:
  - |
    /* single-link LVDS input */
    #include <dt-bindings/gpio/gpio.h>

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

        hdmi@4c {
            compatible = "ite,it6263";
            reg = <0x4c>;
            data-mapping = "jeida-24";
            reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
            ivdd-supply = <&reg_buck5>;
            ovdd-supply = <&reg_vext_3v3>;
            txavcc18-supply = <&reg_buck5>;
            txavcc33-supply = <&reg_vext_3v3>;
            pvcc1-supply = <&reg_buck5>;
            pvcc2-supply = <&reg_buck5>;
            avcc-supply = <&reg_vext_3v3>;
            anvdd-supply = <&reg_buck5>;
            apvdd-supply = <&reg_buck5>;

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

                port@0 {
                    reg = <0>;

                    it6263_lvds_link1: endpoint {
                        remote-endpoint = <&ldb_lvds_ch0>;
                    };
                };

                port@2 {
                    reg = <2>;

                    it6263_out: endpoint {
                        remote-endpoint = <&hdmi_in>;
                    };
                };
            };
        };
    };

  - |
    /* dual-link LVDS input */
    #include <dt-bindings/gpio/gpio.h>

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

        hdmi@4c {
            compatible = "ite,it6263";
            reg = <0x4c>;
            data-mapping = "jeida-24";
            reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
            ivdd-supply = <&reg_buck5>;
            ovdd-supply = <&reg_vext_3v3>;
            txavcc18-supply = <&reg_buck5>;
            txavcc33-supply = <&reg_vext_3v3>;
            pvcc1-supply = <&reg_buck5>;
            pvcc2-supply = <&reg_buck5>;
            avcc-supply = <&reg_vext_3v3>;
            anvdd-supply = <&reg_buck5>;
            apvdd-supply = <&reg_buck5>;

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

                port@0 {
                    reg = <0>;
                    dual-lvds-odd-pixels;

                    it6263_lvds_link1_dual: endpoint {
                        remote-endpoint = <&ldb_lvds_ch0>;
                    };
                };

                port@1 {
                    reg = <1>;
                    dual-lvds-even-pixels;

                    it6263_lvds_link2_dual: endpoint {
                        remote-endpoint = <&ldb_lvds_ch1>;
                    };
                };

                port@2 {
                    reg = <2>;

                    it6263_out_dual: endpoint {
                        remote-endpoint = <&hdmi_in>;
                    };
                };
            };
        };
    };