0001 # SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/usb/ti,usb8041.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Binding for the TI USB8041 USB 3.0 hub controller
0008
0009 maintainers:
0010 - Alexander Stein <alexander.stein@ew.tq-group.com>
0011
0012 allOf:
0013 - $ref: usb-device.yaml#
0014
0015 properties:
0016 compatible:
0017 enum:
0018 - usb451,8140
0019 - usb451,8142
0020
0021 reg: true
0022
0023 reset-gpios:
0024 items:
0025 - description: GPIO specifier for GRST# pin.
0026
0027 vdd-supply:
0028 description:
0029 VDD power supply to the hub
0030
0031 peer-hub:
0032 $ref: /schemas/types.yaml#/definitions/phandle
0033 description:
0034 phandle to the peer hub on the controller.
0035
0036 required:
0037 - compatible
0038 - reg
0039 - peer-hub
0040
0041 additionalProperties: false
0042
0043 examples:
0044 - |
0045 #include <dt-bindings/gpio/gpio.h>
0046
0047 usb {
0048 dr_mode = "host";
0049 #address-cells = <1>;
0050 #size-cells = <0>;
0051
0052 /* 2.0 hub on port 1 */
0053 hub_2_0: hub@1 {
0054 compatible = "usb451,8142";
0055 reg = <1>;
0056 peer-hub = <&hub_3_0>;
0057 reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
0058 };
0059
0060 /* 3.0 hub on port 2 */
0061 hub_3_0: hub@2 {
0062 compatible = "usb451,8140";
0063 reg = <2>;
0064 peer-hub = <&hub_2_0>;
0065 reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
0066 };
0067 };
