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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/display/bridge/ite,it66121.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/display/bridge/ite,it66121.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: ITE it66121 HDMI bridge

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maintainers:

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  - Phong LE <ple@baylibre.com>

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  - Neil Armstrong <neil.armstrong@linaro.org>

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description: |

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  The IT66121 is a high-performance and low-power single channel HDMI

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  transmitter, fully compliant with HDMI 1.3a, HDCP 1.2 and backward compatible

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  to DVI 1.0 specifications.

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properties:

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  compatible:

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    enum:

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      - ite,it66121

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      - ite,it6610

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  reg:

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    maxItems: 1

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  reset-gpios:

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    maxItems: 1

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    description: GPIO connected to active low reset

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  vrf12-supply:

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    description: Regulator for 1.2V analog core power.

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  vcn33-supply:

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    description: Regulator for 3.3V digital core power.

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  vcn18-supply:

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    description: Regulator for 1.8V IO core power.

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  interrupts:

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    maxItems: 1

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  "#sound-dai-cells":

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    const: 0

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  ports:

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

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    properties:

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      port@0:

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        $ref: /schemas/graph.yaml#/$defs/port-base

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        unevaluatedProperties: false

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        description: DPI input port.

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        properties:

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          endpoint:

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            $ref: /schemas/graph.yaml#/$defs/endpoint-base

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            unevaluatedProperties: false

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            properties:

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              bus-width:

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                description:

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                  Endpoint bus width.

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                enum:

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                  - 12  # 12 data lines connected and dual-edge mode

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                  - 24  # 24 data lines connected and single-edge mode

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                default: 24

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      port@1:

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

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        description: HDMI Connector port.

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    required:

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      - port@0

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      - port@1

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required:

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  - compatible

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  - reg

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  - reset-gpios

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  - vrf12-supply

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  - vcn33-supply

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  - vcn18-supply

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  - interrupts

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  - ports

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/irq.h>

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

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    i2c {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        it66121hdmitx: hdmitx@4c {

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            compatible = "ite,it66121";

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            pinctrl-names = "default";

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            pinctrl-0 = <&ite_pins_default>;

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            vcn33-supply = <&mt6358_vcn33_wifi_reg>;

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            vcn18-supply = <&mt6358_vcn18_reg>;

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            vrf12-supply = <&mt6358_vrf12_reg>;

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            reset-gpios = <&pio 160 GPIO_ACTIVE_LOW>;

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            interrupt-parent = <&pio>;

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            interrupts = <4 IRQ_TYPE_LEVEL_LOW>;

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            reg = <0x4c>;

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            ports {

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                #address-cells = <1>;

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                #size-cells = <0>;

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                port@0 {

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                    reg = <0>;

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                    it66121_in: endpoint {

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                        bus-width = <12>;

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                        remote-endpoint = <&display_out>;

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                    };

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                };

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                port@1 {

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                    reg = <1>;

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                    hdmi_conn_out: endpoint {

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                        remote-endpoint = <&hdmi_conn_in>;

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                    };

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                };

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            };

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        };

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    };

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