128 lines
3.1 KiB
YAML
128 lines
3.1 KiB
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 Device Tree Bindings
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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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const: ite,it66121
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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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