bindings/usb/usb-drd.yaml

1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/usb/usb-drd.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Generic USB OTG Controller Device Tree Bindings
10   - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13   otg-rev:
15       Tells usb driver the release number of the OTG and EH supplement with
16       which the device and its descriptors are compliant, in binary-coded
17       decimal (i.e. 2.0 is 0200H). This property is used if any real OTG
18       features (HNP/SRP/ADP) is enabled. If ADP is required, otg-rev should be
24       Tells Dual-Role USB controllers that we want to work on a particular
26       should default to OTG.
28     enum: [host, peripheral, otg]
30   hnp-disable:
32       Tells OTG controllers we want to disable OTG HNP. Normally HNP is the
33       basic function of real OTG except you want it to be a srp-capable only B
37   srp-disable:
39       Tells OTG controllers we want to disable OTG SRP. SRP is optional for OTG
43   adp-disable:
45       Tells OTG controllers we want to disable OTG ADP. ADP is optional for OTG
49   usb-role-switch:
52       (USB host or USB device) for a given USB connector, such as Type-C,
53       Type-B(micro). See connector/usb-connector.yaml.
55   role-switch-default-mode:
57       Indicates if usb-role-switch is enabled, the device default operation
66   - |
71         usb-phy = <&usb2_phy>, <&usb3_phy>;
72         maximum-speed = "super-speed";
73         dr_mode = "otg";
75         otg-rev = <0x0200>;
76         adp-disable;