| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/display/bridge/ite,it66121.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: ITE it66121 HDMI bridge Device Tree Bindings |
| |
| maintainers: |
| - Phong LE <ple@baylibre.com> |
| - Neil Armstrong <narmstrong@baylibre.com> |
| |
| description: | |
| The IT66121 is a high-performance and low-power single channel HDMI |
| transmitter, fully compliant with HDMI 1.3a, HDCP 1.2 and backward compatible |
| to DVI 1.0 specifications. |
| |
| properties: |
| compatible: |
| const: ite,it66121 |
| |
| reg: |
| maxItems: 1 |
| |
| reset-gpios: |
| maxItems: 1 |
| description: GPIO connected to active low reset |
| |
| vrf12-supply: |
| description: Regulator for 1.2V analog core power. |
| |
| vcn33-supply: |
| description: Regulator for 3.3V digital core power. |
| |
| vcn18-supply: |
| description: Regulator for 1.8V IO core power. |
| |
| interrupts: |
| maxItems: 1 |
| |
| "#sound-dai-cells": |
| const: 0 |
| |
| ports: |
| $ref: /schemas/graph.yaml#/properties/ports |
| |
| properties: |
| port@0: |
| $ref: /schemas/graph.yaml#/$defs/port-base |
| unevaluatedProperties: false |
| description: DPI input port. |
| |
| properties: |
| endpoint: |
| $ref: /schemas/graph.yaml#/$defs/endpoint-base |
| unevaluatedProperties: false |
| |
| properties: |
| bus-width: |
| description: |
| Endpoint bus width. |
| enum: |
| - 12 # 12 data lines connected and dual-edge mode |
| - 24 # 24 data lines connected and single-edge mode |
| default: 24 |
| |
| port@1: |
| $ref: /schemas/graph.yaml#/properties/port |
| description: HDMI Connector port. |
| |
| required: |
| - port@0 |
| - port@1 |
| |
| required: |
| - compatible |
| - reg |
| - reset-gpios |
| - vrf12-supply |
| - vcn33-supply |
| - vcn18-supply |
| - interrupts |
| - ports |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/irq.h> |
| #include <dt-bindings/gpio/gpio.h> |
| i2c { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| it66121hdmitx: hdmitx@4c { |
| compatible = "ite,it66121"; |
| pinctrl-names = "default"; |
| pinctrl-0 = <&ite_pins_default>; |
| vcn33-supply = <&mt6358_vcn33_wifi_reg>; |
| vcn18-supply = <&mt6358_vcn18_reg>; |
| vrf12-supply = <&mt6358_vrf12_reg>; |
| reset-gpios = <&pio 160 GPIO_ACTIVE_LOW>; |
| interrupt-parent = <&pio>; |
| interrupts = <4 IRQ_TYPE_LEVEL_LOW>; |
| reg = <0x4c>; |
| |
| ports { |
| #address-cells = <1>; |
| #size-cells = <0>; |
| |
| port@0 { |
| reg = <0>; |
| it66121_in: endpoint { |
| bus-width = <12>; |
| remote-endpoint = <&display_out>; |
| }; |
| }; |
| |
| port@1 { |
| reg = <1>; |
| hdmi_conn_out: endpoint { |
| remote-endpoint = <&hdmi_conn_in>; |
| }; |
| }; |
| }; |
| }; |
| }; |
