Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
Extension: .yaml
Size: 3192 bytes
Lines: 123
Domain: Support Tooling And Documentation
Bucket: Documentation
Inferred role: Support Tooling And Documentation: configuration, schema, or hardware description
Status: atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

dt-bindings/interrupt-controller/arm-gic.h
dt-bindings/clock/berlin2.h

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/ci-hdrc-usb2.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: USB2 ChipIdea USB controller

maintainers:
  - Xu Yang <xu.yang_2@nxp.com>
  - Peng Fan <peng.fan@nxp.com>

properties:
  compatible:
    oneOf:
      - enum:
          - chipidea,usb2
          - lsi,zevio-usb
          - nuvoton,npcm750-udc
          - nvidia,tegra20-ehci
          - nvidia,tegra20-udc
          - nvidia,tegra30-ehci
          - nvidia,tegra30-udc
          - nvidia,tegra114-udc
          - nvidia,tegra124-udc
          - nxp,s32g2-usb
          - qcom,ci-hdrc
      - items:
          - enum:
              - nvidia,tegra114-ehci
              - nvidia,tegra124-ehci
              - nvidia,tegra210-ehci
          - const: nvidia,tegra30-ehci
      - items:
          - const: xlnx,zynq-usb-2.20a
          - const: chipidea,usb2
      - items:
          - enum:
              - nuvoton,npcm845-udc
          - const: nuvoton,npcm750-udc
      - items:
          - enum:
              - nxp,s32g3-usb
          - const: nxp,s32g2-usb

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    maxItems: 2

  operating-points-v2:
    description: A phandle to the OPP table containing the performance states.
    $ref: /schemas/types.yaml#/definitions/phandle

  phy-select:
    description:
      Phandler of TCSR node with two argument that indicate register
      offset, and phy index
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      - items:
          - description: phandle to TCSR node
          - description: register offset
          - description: phy index

  nvidia,phy:
    description: phandle of usb phy that connects to the port. Use "phys" instead.

Annotation

Immediate include surface: `dt-bindings/interrupt-controller/arm-gic.h`, `dt-bindings/clock/berlin2.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.