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|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/bridge/adi,adv7533.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices ADV7533/35 HDMI Encoders
maintainers:
- Laurent Pinchart <laurent.pinchart@ideasonboard.com>
description: |
The ADV7533 and ADV7535 are HDMI audio and video transmitters
compatible with HDMI 1.4 and DVI 1.0. They support color space
conversion, S/PDIF, CEC and HDCP. The transmitter input is MIPI DSI.
properties:
compatible:
enum:
- adi,adv7533
- adi,adv7535
reg:
description: |
I2C slave addresses.
The ADV7533/35 internal registers are split into four pages
exposed through different I2C addresses, creating four register
maps. Each map has it own I2C address and acts as a standard slave
device on the I2C bus. The main address is mandatory, others are
optional and revert to defaults if not specified.
minItems: 1
maxItems: 4
reg-names:
description:
Names of maps with programmable addresses. It can contain any map
needing a non-default address.
minItems: 1
items:
- const: main
- const: edid
- const: cec
- const: packet
clocks:
description: Reference to the CEC clock.
maxItems: 1
clock-names:
const: cec
interrupts:
maxItems: 1
pd-gpios:
description: GPIO connected to the power down signal.
maxItems: 1
avdd-supply:
description: A 1.8V supply that powers up the AVDD pin.
dvdd-supply:
description: A 1.8V supply that powers up the DVDD pin.
pvdd-supply:
description: A 1.8V supply that powers up the PVDD pin.
a2vdd-supply:
description: A 1.8V supply that powers up the A2VDD pin.
v3p3-supply:
description: A 3.3V supply that powers up the V3P3 pin.
v1p2-supply:
description:
A supply that powers up the V1P2 pin. It can be either 1.2V
or 1.8V for ADV7533 but only 1.8V for ADV7535.
adi,disable-timing-generator:
description:
Disables the internal timing generator. The chip will rely on the
sync signals in the DSI data lanes, rather than generating its own
timings for HDMI output.
type: boolean
adi,dsi-lanes:
description: Number of DSI data lanes connected to the DSI host.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [ 1, 2, 3, 4 ]
ports:
description:
The ADV7533/35 has two video ports and one audio port. This node
models their connections as documented in
Documentation/devicetree/bindings/media/video-interfaces.txt
Documentation/devicetree/bindings/graph.txt
type: object
properties:
port@0:
description:
Video port for the DSI input. The remote endpoint phandle
should be a reference to a valid mipi_dsi_host_device.
type: object
port@1:
description: Video port for the HDMI output.
type: object
port@2:
description: Audio port for the HDMI output.
type: object
required:
- compatible
- reg
- ports
- adi,dsi-lanes
- avdd-supply
- dvdd-supply
- pvdd-supply
- a2vdd-supply
- v3p3-supply
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c@e6500000 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0 0xe6500000>;
adv7533: hdmi@39 {
compatible = "adi,adv7533";
/*
* The EDID page will be accessible on address 0x66 on the I2C
* bus. All other maps continue to use their default addresses.
*/
reg = <0x39>, <0x66>;
reg-names = "main", "edid";
interrupt-parent = <&gpio3>;
interrupts = <29 IRQ_TYPE_EDGE_FALLING>;
clocks = <&cec_clock>;
clock-names = "cec";
adi,dsi-lanes = <4>;
avdd-supply = <&v1v8>;
dvdd-supply = <&v1v8>;
pvdd-supply = <&v1v8>;
a2vdd-supply = <&v1v8>;
v3p3-supply = <&v3v3>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
adv7533_in: endpoint {
remote-endpoint = <&dsi_out>;
};
};
port@1 {
reg = <1>;
adv7533_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
port@2 {
reg = <2>;
codec_endpoint: endpoint {
remote-endpoint = <&i2s0_cpu_endpoint>;
};
};
};
};
};
...
|
