xref: /openbmc/linux/Documentation/devicetree/bindings/usb/cypress,hx3.yaml (revision 44ad3baf1cca483e418b6aadf2d3994f69e0f16a) 
1# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/usb/cypress,hx3.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Cypress HX3 USB 3.0 hub controller family
8
9maintainers:
10  - Benjamin Bara <benjamin.bara@skidata.com>
11
12allOf:
13  - $ref: usb-device.yaml#
14
15properties:
16  compatible:
17    oneOf:
18      - enum:
19          - usb4b4,6504
20          - usb4b4,6506
21      - items:
22          - enum:
23              - usb4b4,6500
24              - usb4b4,6508
25          - const: usb4b4,6504
26      - items:
27          - enum:
28              - usb4b4,6502
29              - usb4b4,6503
30              - usb4b4,6507
31              - usb4b4,650a
32          - const: usb4b4,6506
33
34  reg: true
35
36  reset-gpios:
37    items:
38      - description: GPIO specifier for RESETN pin.
39
40  vdd-supply:
41    description:
42      1V2 power supply (VDD_EFUSE, AVDD12, DVDD12).
43
44  vdd2-supply:
45    description:
46      3V3 power supply (AVDD33, VDD_IO).
47
48  peer-hub:
49    $ref: /schemas/types.yaml#/definitions/phandle
50    description:
51      phandle to the peer hub on the controller.
52
53required:
54  - compatible
55  - reg
56  - peer-hub
57  - vdd-supply
58  - vdd2-supply
59
60additionalProperties: false
61
62examples:
63  - |
64    #include <dt-bindings/gpio/gpio.h>
65
66    usb {
67        dr_mode = "host";
68        #address-cells = <1>;
69        #size-cells = <0>;
70
71        /* 2.0 hub on port 1 */
72        hub_2_0: hub@1 {
73          compatible = "usb4b4,6504";
74          reg = <1>;
75          peer-hub = <&hub_3_0>;
76          reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
77          vdd-supply = <&reg_1v2_usb>;
78          vdd2-supply = <&reg_3v3_usb>;
79        };
80
81        /* 3.0 hub on port 2 */
82        hub_3_0: hub@2 {
83          compatible = "usb4b4,6506";
84          reg = <2>;
85          peer-hub = <&hub_2_0>;
86          reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
87          vdd-supply = <&reg_1v2_usb>;
88          vdd2-supply = <&reg_3v3_usb>;
89        };
90    };
91