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   - Piyush Mehta <piyush.mehta@amd.com>
20   - Michal Simek <michal.simek@amd.com>
25       - usb424,2744
26       - usb424,5744
27       - microchip,usb5744
32   reset-gpios:
37   vdd-supply:
39       3V3 power supply to the hub
41   vdd2-supply:
43       1V2 power supply to the hub
45   peer-hub:
48       phandle to the peer hub on the controller.
50   i2c-bus:
53       phandle of an usb hub connected via i2c bus.
56   - compatible
57   - reg
60   - if:
67         reset-gpios: false
68         vdd-supply: false
69         vdd2-supply: false
70         peer-hub: false
71         i2c-bus: false
73       $ref: /schemas/usb/usb-device.yaml
75         - peer-hub
80   - |
81     #include <dt-bindings/gpio/gpio.h>
83         #address-cells = <1>;
84         #size-cells = <0>;
85         hub: usb-hub@2d {
91     usb {
92         #address-cells = <1>;
93         #size-cells = <0>;
95         /* 2.0 hub on port 1 */
96         hub_2_0: hub@1 {
99             peer-hub = <&hub_3_0>;
100             i2c-bus = <&hub>;
101             reset-gpios = <&gpio 3 GPIO_ACTIVE_LOW>;
104         /* 3.0 hub on port 2 */
105         hub_3_0: hub@2 {
108             peer-hub = <&hub_2_0>;
109             i2c-bus = <&hub>;
110             reset-gpios = <&gpio 3 GPIO_ACTIVE_LOW>;