1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/usb/vialab,vl817.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Via labs VL817 USB 3.1 hub controller
8
9 maintainers:
10 - Anand Moon <linux.amoon@gmail.com>
11
12 allOf:
13 - $ref: usb-device.yaml#
14
15 properties:
16 compatible:
17 enum:
18 - usb2109,2817
19 - usb2109,817
20
21 reg: true
22
23 reset-gpios:
24 maxItems: 1
25 description:
26 GPIO controlling the RESET# pin.
27
28 vdd-supply:
29 description:
30 phandle to the regulator that provides power to the hub.
31
32 peer-hub:
33 $ref: /schemas/types.yaml#/definitions/phandle
34 description:
35 phandle to the peer hub on the controller.
36
37 required:
38 - compatible
39 - reg
40 - vdd-supply
41 - peer-hub
42
43 additionalProperties: false
44
45 examples:
46 - |
47 #include <dt-bindings/gpio/gpio.h>
48
49 usb {
50 #address-cells = <1>;
51 #size-cells = <0>;
52
53 /* 2.0 hub on port 1 */
54 hub_2_0: hub@1 {
55 compatible = "usb2109,2817";
56 reg = <1>;
57 vdd-supply = <&vcc_5v>;
58 peer-hub = <&hub_3_0>;
59 reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
60 };
61
62 /* 3.1 hub on port 4 */
63 hub_3_0: hub@2 {
64 compatible = "usb2109,817";
65 reg = <2>;
66 vdd-supply = <&vcc_5v>;
67 peer-hub = <&hub_2_0>;
68 reset-gpios = <&gpio 20 GPIO_ACTIVE_LOW>;
69 };
70 };
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