0842b8feb4
The TI USB8020B is a USB 3.0 hub controller with 2 ports. This initial version of the binding only describes USB related aspects of the USB8020B, it does not cover the option of connecting the controller as an i2c slave. Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Link: https://lore.kernel.org/r/20240227090228.22156-1-macpaul.lin@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
70 lines
1.4 KiB
YAML
70 lines
1.4 KiB
YAML
# 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>;
|
|
};
|
|
};
|