Documentation/devicetree/bindings/iommu/verisilicon,iommu.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/iommu/verisilicon,iommu.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/iommu/verisilicon,iommu.yaml
Extension
.yaml
Size
1462 bytes
Lines
72
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.

Dependency Surface

Detected Declarations

Annotated Snippet

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

title: Verisilicon IOMMU

maintainers:
  - Benjamin Gaignard <benjamin.gaignard@collabora.com>

description: |+
  A Versilicon iommu translates io virtual addresses to physical addresses for
  its associated video decoder.

properties:
  compatible:
    items:
      - const: rockchip,rk3588-av1-iommu
      - const: verisilicon,iommu-1.2

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: Core clock
      - description: Interface clock

  clock-names:
    items:
      - const: core
      - const: iface

  "#iommu-cells":
    const: 0

  power-domains:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - "#iommu-cells"

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/rockchip,rk3588-cru.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    bus {
      #address-cells = <2>;
      #size-cells = <2>;

      iommu@fdca0000 {
        compatible = "rockchip,rk3588-av1-iommu","verisilicon,iommu-1.2";
        reg = <0x0 0xfdca0000 0x0 0x600>;
        interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH 0>;
        clocks = <&cru ACLK_AV1>, <&cru PCLK_AV1>;
        clock-names = "core", "iface";
        #iommu-cells = <0>;
      };

Annotation

Implementation Notes