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|
# 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
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>;
};
};
};
};
};
|
