| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/usb/usb-drd.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Generic USB OTG Controller Device Tree Bindings |
| |
| maintainers: |
| - Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| properties: |
| otg-rev: |
| description: |
| Tells usb driver the release number of the OTG and EH supplement with |
| which the device and its descriptors are compliant, in binary-coded |
| decimal (i.e. 2.0 is 0200H). This property is used if any real OTG |
| features (HNP/SRP/ADP) is enabled. If ADP is required, otg-rev should be |
| 0x0200 or above. |
| $ref: /schemas/types.yaml#/definitions/uint32 |
| enum: [0x0100, 0x0120, 0x0130, 0x0200] |
| |
| dr_mode: |
| description: |
| Tells Dual-Role USB controllers that we want to work on a particular |
| mode. In case this attribute isn't passed via DT, USB DRD controllers |
| should default to OTG. |
| $ref: /schemas/types.yaml#/definitions/string |
| enum: [host, peripheral, otg] |
| |
| hnp-disable: |
| description: |
| Tells OTG controllers we want to disable OTG HNP. Normally HNP is the |
| basic function of real OTG except you want it to be a srp-capable only B |
| device. |
| type: boolean |
| |
| srp-disable: |
| description: |
| Tells OTG controllers we want to disable OTG SRP. SRP is optional for OTG |
| device. |
| type: boolean |
| |
| adp-disable: |
| description: |
| Tells OTG controllers we want to disable OTG ADP. ADP is optional for OTG |
| device. |
| type: boolean |
| |
| usb-role-switch: |
| description: |
| Indicates that the device is capable of assigning the USB data role |
| (USB host or USB device) for a given USB connector, such as Type-C, |
| Type-B(micro). See connector/usb-connector.yaml. |
| |
| role-switch-default-mode: |
| description: |
| Indicates if usb-role-switch is enabled, the device default operation |
| mode of controller while usb role is USB_ROLE_NONE. |
| $ref: /schemas/types.yaml#/definitions/string |
| enum: [host, peripheral] |
| default: peripheral |
| |
| additionalProperties: true |
| |
| examples: |
| - | |
| usb@4a030000 { |
| compatible = "snps,dwc3"; |
| reg = <0x4a030000 0xcfff>; |
| interrupts = <0 92 4>; |
| usb-phy = <&usb2_phy>, <&usb3_phy>; |
| maximum-speed = "super-speed"; |
| dr_mode = "otg"; |
| phy_type = "utmi_wide"; |
| otg-rev = <0x0200>; |
| adp-disable; |
| }; |