183 lines
4.7 KiB
YAML
183 lines
4.7 KiB
YAML
# 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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$id: http://devicetree.org/schemas/display/bridge/adi,adv7533.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices ADV7533/35 HDMI Encoders
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maintainers:
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- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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description: |
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The ADV7533 and ADV7535 are HDMI audio and video transmitters
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compatible with HDMI 1.4 and DVI 1.0. They support color space
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conversion, S/PDIF, CEC and HDCP. The transmitter input is MIPI DSI.
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properties:
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compatible:
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enum:
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- adi,adv7533
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- adi,adv7535
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reg:
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description: |
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I2C slave addresses.
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The ADV7533/35 internal registers are split into four pages
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exposed through different I2C addresses, creating four register
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maps. Each map has it own I2C address and acts as a standard slave
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device on the I2C bus. The main address is mandatory, others are
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optional and revert to defaults if not specified.
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minItems: 1
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maxItems: 4
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reg-names:
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description:
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Names of maps with programmable addresses. It can contain any map
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needing a non-default address.
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minItems: 1
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items:
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- const: main
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- const: edid
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- const: cec
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- const: packet
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clocks:
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description: Reference to the CEC clock.
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maxItems: 1
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clock-names:
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const: cec
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interrupts:
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maxItems: 1
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pd-gpios:
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description: GPIO connected to the power down signal.
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maxItems: 1
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avdd-supply:
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description: A 1.8V supply that powers up the AVDD pin.
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dvdd-supply:
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description: A 1.8V supply that powers up the DVDD pin.
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pvdd-supply:
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description: A 1.8V supply that powers up the PVDD pin.
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a2vdd-supply:
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description: A 1.8V supply that powers up the A2VDD pin.
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v3p3-supply:
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description: A 3.3V supply that powers up the V3P3 pin.
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v1p2-supply:
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description:
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A supply that powers up the V1P2 pin. It can be either 1.2V
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or 1.8V for ADV7533 but only 1.8V for ADV7535.
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adi,disable-timing-generator:
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description:
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Disables the internal timing generator. The chip will rely on the
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sync signals in the DSI data lanes, rather than generating its own
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timings for HDMI output.
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type: boolean
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adi,dsi-lanes:
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description: Number of DSI data lanes connected to the DSI host.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [ 1, 2, 3, 4 ]
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ports:
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description:
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The ADV7533/35 has two video ports and one audio port.
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@0:
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description:
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Video port for the DSI input. The remote endpoint phandle
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should be a reference to a valid mipi_dsi_host_device.
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$ref: /schemas/graph.yaml#/properties/port
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port@1:
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description: Video port for the HDMI output.
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$ref: /schemas/graph.yaml#/properties/port
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port@2:
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description: Audio port for the HDMI output.
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$ref: /schemas/graph.yaml#/properties/port
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required:
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- compatible
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- reg
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- ports
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- adi,dsi-lanes
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- avdd-supply
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- dvdd-supply
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- pvdd-supply
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- a2vdd-supply
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- v3p3-supply
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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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i2c@e6500000 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0 0xe6500000>;
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adv7533: hdmi@39 {
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compatible = "adi,adv7533";
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/*
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* The EDID page will be accessible on address 0x66 on the I2C
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* bus. All other maps continue to use their default addresses.
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*/
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reg = <0x39>, <0x66>;
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reg-names = "main", "edid";
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interrupt-parent = <&gpio3>;
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interrupts = <29 IRQ_TYPE_EDGE_FALLING>;
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clocks = <&cec_clock>;
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clock-names = "cec";
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adi,dsi-lanes = <4>;
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avdd-supply = <&v1v8>;
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dvdd-supply = <&v1v8>;
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pvdd-supply = <&v1v8>;
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a2vdd-supply = <&v1v8>;
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v3p3-supply = <&v3v3>;
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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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adv7533_in: endpoint {
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remote-endpoint = <&dsi_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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adv7533_out: endpoint {
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remote-endpoint = <&hdmi_connector_in>;
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};
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};
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port@2 {
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reg = <2>;
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codec_endpoint: endpoint {
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remote-endpoint = <&i2s0_cpu_endpoint>;
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};
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};
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};
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};
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};
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...
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