usb-drd.yaml

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    1 # SPDX-License-Identifier: GPL-2.0
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/usb/usb-drd.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Generic USB OTG Controller Device Tree Bindings
    8 
    9 maintainers:
   10   - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
   11 
   12 properties:
   13   otg-rev:
   14     description:
   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
   19       0x0200 or above.
   20     $ref: /schemas/types.yaml#/definitions/uint32
   21     enum: [0x0100, 0x0120, 0x0130, 0x0200]
   22 
   23   dr_mode:
   24     description:
   25       Tells Dual-Role USB controllers that we want to work on a particular
   26       mode. In case this attribute isn't passed via DT, USB DRD controllers
   27       should default to OTG.
   28     $ref: /schemas/types.yaml#/definitions/string
   29     enum: [host, peripheral, otg]
   30 
   31   hnp-disable:
   32     description:
   33       Tells OTG controllers we want to disable OTG HNP. Normally HNP is the
   34       basic function of real OTG except you want it to be a srp-capable only B
   35       device.
   36     type: boolean
   37 
   38   srp-disable:
   39     description:
   40       Tells OTG controllers we want to disable OTG SRP. SRP is optional for OTG
   41       device.
   42     type: boolean
   43 
   44   adp-disable:
   45     description:
   46       Tells OTG controllers we want to disable OTG ADP. ADP is optional for OTG
   47       device.
   48     type: boolean
   49 
   50   usb-role-switch:
   51     description:
   52       Indicates that the device is capable of assigning the USB data role
   53       (USB host or USB device) for a given USB connector, such as Type-C,
   54       Type-B(micro). See connector/usb-connector.yaml.
   55 
   56   role-switch-default-mode:
   57     description:
   58       Indicates if usb-role-switch is enabled, the device default operation
   59       mode of controller while usb role is USB_ROLE_NONE.
   60     $ref: /schemas/types.yaml#/definitions/string
   61     enum: [host, peripheral]
   62     default: peripheral
   63 
   64 additionalProperties: true
   65 
   66 examples:
   67   - |
   68     usb@4a030000 {
   69         compatible = "snps,dwc3";
   70         reg = <0x4a030000 0xcfff>;
   71         interrupts = <0 92 4>;
   72         usb-phy = <&usb2_phy>, <&usb3_phy>;
   73         maximum-speed = "super-speed";
   74         dr_mode = "otg";
   75         phy_type = "utmi_wide";
   76         otg-rev = <0x0200>;
   77         adp-disable;
   78     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/usb/usb-drd.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/usb/usb-drd.yaml