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     description:
  20       List of all the USB PHYs on this HCD
  21
  22   phy-names:
  23     description:
  24       Name specifier for the USB PHY
  25
  26   usb-phy:
  27     $ref: /schemas/types.yaml#/definitions/phandle-array
  28     description:
  29       List of all the USB PHYs on this HCD to be accepted by the legacy USB
  30       Physical Layer subsystem.
  31     deprecated: true
  32
  33   phy_type:
  34     description:
  35       Tells USB controllers that we want to configure the core to support a
  36       UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is selected, UTMI+ low
  37       pin interface if ULPI is specified, Serial core/PHY interconnect if
  38       serial is specified and High-Speed Inter-Chip feature if HSIC is
  39       selected. In case this isn't passed via DT, USB controllers should
  40       default to HW capability.
  41     $ref: /schemas/types.yaml#/definitions/string
  42     enum: [utmi, utmi_wide, ulpi, serial, hsic]
  43
  44   maximum-speed:
  45     description:
  46       Tells USB controllers we want to work up to a certain speed. In case this
  47       isn't passed via DT, USB controllers should default to their maximum HW
  48       capability.
  49     $ref: /schemas/types.yaml#/definitions/string
  50     enum:
  51       - low-speed
  52       - full-speed
  53       - high-speed
  54       - super-speed
  55       - super-speed-plus
  56       - super-speed-plus-gen2x1
  57       - super-speed-plus-gen1x2
  58       - super-speed-plus-gen2x2
  59
  60 additionalProperties: true
  61
  62 ...