# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/bridge/ite,it6505.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: ITE it6505
maintainers:
- Allen Chen <[email protected]>
allOf:
- $ref: /schemas/sound/dai-common.yaml#
description: |
The IT6505 is a high-performance DisplayPort 1.1a transmitter,
fully compliant with DisplayPort 1.1a, HDCP 1.3 specifications.
The IT6505 supports color depth of up to 36 bits (12 bits/color)
and ensures robust transmission of high-quality uncompressed video
content, along with uncompressed and compressed digital audio content.
Aside from the various video output formats supported, the IT6505
also encodes and transmits up to 8 channels of I2S digital audio,
with sampling rate up to 192kHz and sample size up to 24 bits.
In addition, an S/PDIF input port takes in compressed audio of up to
192kHz frame rate.
Each IT6505 chip comes preprogrammed with an unique HDCP key,
in compliance with the HDCP 1.3 standard so as to provide secure
transmission of high-definition content. Users of the IT6505 need not
purchase any HDCP keys or ROMs.
properties:
compatible:
const: ite,it6505
reg:
maxItems: 1
ovdd-supply:
description: I/O voltage
pwr18-supply:
description: core voltage
interrupts:
maxItems: 1
description: interrupt specifier of INT pin
reset-gpios:
maxItems: 1
description: gpio specifier of RESET pin
extcon:
maxItems: 1
description: extcon specifier for the Power Delivery
"#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: A port node pointing to DPI host port node
properties:
endpoint:
$ref: /schemas/graph.yaml#/$defs/endpoint-base
unevaluatedProperties: false
properties:
link-frequencies:
minItems: 1
maxItems: 1
description: Allowed max link frequencies in Hz
port@1:
$ref: /schemas/graph.yaml#/$defs/port-base
unevaluatedProperties: false
description: Video port for DP output
properties:
endpoint:
$ref: /schemas/graph.yaml#/$defs/endpoint-base
unevaluatedProperties: false
properties:
data-lanes:
minItems: 1
uniqueItems: true
items:
- enum: [ 0, 1 ]
- const: 1
- const: 2
- const: 3
required:
- port@0
- port@1
required:
- compatible
- ovdd-supply
- pwr18-supply
- interrupts
- reset-gpios
- extcon
- ports
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
dp-bridge@5c {
compatible = "ite,it6505";
interrupts = <152 IRQ_TYPE_EDGE_FALLING 152 0>;
reg = <0x5c>;
pinctrl-names = "default";
pinctrl-0 = <&it6505_pins>;
ovdd-supply = <&mt6358_vsim1_reg>;
pwr18-supply = <&it6505_pp18_reg>;
reset-gpios = <&pio 179 1>;
extcon = <&usbc_extcon>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
it6505_in: endpoint {
remote-endpoint = <&dpi_out>;
link-frequencies = /bits/ 64 <150000000>;
};
};
port@1 {
reg = <1>;
it6505_out: endpoint {
remote-endpoint = <&dp_in>;
data-lanes = <0 1>;
};
};
};
};
};
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