Documentation/devicetree/bindings/usb/usb.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/usb/usb.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Generic USB Controller Device Tree Bindings
   8
   9 maintainers:
  10   - Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  11
  12 select: false
  13
  14 properties:
  15   $nodename:
  16     pattern: "^usb(@.*)?"
  17
  18   phys:
  19     $ref: /schemas/types.yaml#/definitions/phandle-array
  20     description:
  21       List of all the USB PHYs on this HCD
  22
  23   phy-names:
  24     description:
  25       Name specifier for the USB PHY
  26
  27   usb-phy:
  28     $ref: /schemas/types.yaml#/definitions/phandle-array
  29     description:
  30       List of all the USB PHYs on this HCD to be accepted by the legacy USB
  31       Physical Layer subsystem.
  32     deprecated: true
  33
  34   phy_type:
  35     description:
  36       Tells USB controllers that we want to configure the core to support a
  37       UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is selected, UTMI+ low
  38       pin interface if ULPI is specified, Serial core/PHY interconnect if
  39       serial is specified and High-Speed Inter-Chip feature if HSIC is
  40       selected. In case this isn't passed via DT, USB controllers should
  41       default to HW capability.
  42     $ref: /schemas/types.yaml#/definitions/string
  43     enum: [utmi, utmi_wide, ulpi, serial, hsic]
  44
  45   maximum-speed:
  46     description:
  47       Tells USB controllers we want to work up to a certain speed. In case this
  48       isn't passed via DT, USB controllers should default to their maximum HW
  49       capability.
  50     $ref: /schemas/types.yaml#/definitions/string
  51     enum:
  52       - low-speed
  53       - full-speed
  54       - high-speed
  55       - super-speed
  56       - super-speed-plus
  57       - super-speed-plus-gen2x1
  58       - super-speed-plus-gen1x2
  59       - super-speed-plus-gen2x2
  60
  61 additionalProperties: true
  62
  63 ...