xref: /linux/Documentation/devicetree/bindings/usb/ti,usb8041.yaml (revision 50b7e7082a3dde5bdba14a4e40a2e2279fd08a7b) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/ti,usb8041.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: TI USB8041 and USB8044 USB 3.0 hub controllers
8
9maintainers:
10  - Alexander Stein <alexander.stein@ew.tq-group.com>
11
12allOf:
13  - $ref: usb-device.yaml#
14
15properties:
16  compatible:
17    enum:
18      - usb451,8140
19      - usb451,8142
20      - usb451,8440
21      - usb451,8442
22
23  reg: true
24
25  reset-gpios:
26    items:
27      - description: GPIO specifier for GRST# pin.
28
29  vdd-supply:
30    description:
31      VDD power supply to the hub
32
33  peer-hub:
34    $ref: /schemas/types.yaml#/definitions/phandle
35    description:
36      phandle to the peer hub on the controller.
37
38required:
39  - compatible
40  - reg
41  - peer-hub
42
43additionalProperties: false
44
45examples:
46  - |
47    #include <dt-bindings/gpio/gpio.h>
48
49    usb {
50        dr_mode = "host";
51        #address-cells = <1>;
52        #size-cells = <0>;
53
54        /* 2.0 hub on port 1 */
55        hub_2_0: hub@1 {
56            compatible = "usb451,8142";
57            reg = <1>;
58            peer-hub = <&hub_3_0>;
59            reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
60        };
61
62        /* 3.0 hub on port 2 */
63        hub_3_0: hub@2 {
64            compatible = "usb451,8140";
65            reg = <2>;
66            peer-hub = <&hub_2_0>;
67            reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
68        };
69    };
70