bindings/usb/microchip%2Cusb5744.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/usb/microchip,usb5744.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Microchip USB5744 4-port Hub Controller
10   Microchip's USB5744 SmartHubTM IC is a 4 port, SuperSpeed (SS)/Hi-Speed (HS),
11   low power, low pin count configurable and fully compliant with the USB 3.1
13   (LS) USB signaling, offering complete coverage of all defined USB operating
14   speeds. The new SuperSpeed hubs operate in parallel with the USB 2.0
16   USB 2.0 traffic.
19   - Michal Simek <michal.simek@amd.com>
20   - Mubin Sayyed <mubin.sayyed@amd.com>
21   - Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
26       - usb424,2744
27       - usb424,5744
28       - microchip,usb5744
33   reset-gpios:
38   vdd-supply:
40       3V3 power supply to the hub
42   vdd2-supply:
44       1V2 power supply to the hub
46   peer-hub:
49       phandle to the peer hub on the controller.
51   i2c-bus:
54       phandle of an usb hub connected via i2c bus.
57   - compatible
58   - reg
61   - if:
68         reset-gpios: false
69         vdd-supply: false
70         vdd2-supply: false
71         peer-hub: false
72         i2c-bus: false
74       $ref: /schemas/usb/usb-device.yaml
76         - peer-hub
81   - |
82     #include <dt-bindings/gpio/gpio.h>
84         #address-cells = <1>;
85         #size-cells = <0>;
86         hub: usb-hub@2d {
92     usb {
93         #address-cells = <1>;
94         #size-cells = <0>;
96         /* 2.0 hub on port 1 */
97         hub_2_0: hub@1 {
100             peer-hub = <&hub_3_0>;
101             i2c-bus = <&hub>;
102             reset-gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
105         /* 3.0 hub on port 2 */
106         hub_3_0: hub@2 {
109             peer-hub = <&hub_2_0>;
110             i2c-bus = <&hub>;
111             reset-gpios = <&gpio 3 GPIO_ACTIVE_LOW>;