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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/ti,usb8020b.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI USB8020B USB 3.0 hub controller
maintainers:
- Macpaul Lin <macpaul.lin@mediatek.com>
allOf:
- $ref: usb-device.yaml#
properties:
compatible:
enum:
- usb451,8025
- usb451,8027
reg: true
reset-gpios:
items:
- description: GPIO specifier for GRST# pin.
vdd-supply:
description:
VDD power supply to the hub
peer-hub:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to the peer hub on the controller.
required:
- compatible
- reg
- peer-hub
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
usb {
dr_mode = "host";
#address-cells = <1>;
#size-cells = <0>;
/* 2.0 hub on port 1 */
hub_2_0: hub@1 {
compatible = "usb451,8027";
reg = <1>;
peer-hub = <&hub_3_0>;
reset-gpios = <&pio 7 GPIO_ACTIVE_HIGH>;
vdd-supply = <&usb_hub_fixed_3v3>;
};
/* 3.0 hub on port 2 */
hub_3_0: hub@2 {
compatible = "usb451,8025";
reg = <2>;
peer-hub = <&hub_2_0>;
reset-gpios = <&pio 7 GPIO_ACTIVE_HIGH>;
vdd-supply = <&usb_hub_fixed_3v3>;
};
};
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