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