| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 |
| 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 | default: otg |
| 31 | |
| 32 | hnp-disable: |
| 33 | description: |
| 34 | Tells OTG controllers we want to disable OTG HNP. Normally HNP is the |
| 35 | basic function of real OTG except you want it to be a srp-capable only B |
| 36 | device. |
| 37 | type: boolean |
| 38 | |
| 39 | srp-disable: |
| 40 | description: |
| 41 | Tells OTG controllers we want to disable OTG SRP. SRP is optional for OTG |
| 42 | device. |
| 43 | type: boolean |
| 44 | |
| 45 | adp-disable: |
| 46 | description: |
| 47 | Tells OTG controllers we want to disable OTG ADP. ADP is optional for OTG |
| 48 | device. |
| 49 | type: boolean |
| 50 | |
| 51 | usb-role-switch: |
| 52 | description: |
| 53 | Indicates that the device is capable of assigning the USB data role |
| 54 | (USB host or USB device) for a given USB connector, such as Type-C, |
| 55 | Type-B(micro). See connector/usb-connector.yaml. |
| 56 | |
| 57 | role-switch-default-mode: |
| 58 | description: |
| 59 | Indicates if usb-role-switch is enabled, the device default operation |
| 60 | mode of controller while usb role is USB_ROLE_NONE. |
| 61 | $ref: /schemas/types.yaml#/definitions/string |
| 62 | enum: [host, peripheral] |
| 63 | default: peripheral |
| 64 | |
| 65 | additionalProperties: true |
| 66 | |
| 67 | examples: |
| 68 | - | |
| 69 | usb@4a030000 { |
| 70 | compatible = "snps,dwc3"; |
| 71 | reg = <0x4a030000 0xcfff>; |
| 72 | interrupts = <0 92 4>; |
| 73 | usb-phy = <&usb2_phy>, <&usb3_phy>; |
| 74 | maximum-speed = "super-speed"; |
| 75 | dr_mode = "otg"; |
| 76 | phy_type = "utmi_wide"; |
| 77 | otg-rev = <0x0200>; |
| 78 | adp-disable; |
| 79 | }; |