Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml
Extension
.yaml
Size
1346 bytes
Lines
57
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/mailbox/mtk,adsp-mbox.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Mediatek ADSP mailbox

maintainers:
  - Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>

description: |
  The MTK ADSP mailbox Inter-Processor Communication (IPC) enables the SoC
  to communicate with ADSP by passing messages through two mailbox channels.
  The MTK ADSP mailbox IPC also provides the ability for one processor to
  signal the other processor using interrupts.

properties:
  compatible:
    oneOf:
      - enum:
          - mediatek,mt8186-adsp-mbox
          - mediatek,mt8195-adsp-mbox
      - items:
          - enum:
              - mediatek,mt8188-adsp-mbox
          - const: mediatek,mt8186-adsp-mbox

  "#mbox-cells":
    const: 0

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

required:
  - compatible
  - "#mbox-cells"
  - reg
  - interrupts

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    adsp_mailbox0:mailbox@10816000 {
        compatible = "mediatek,mt8195-adsp-mbox";
        #mbox-cells = <0>;
        reg = <0x10816000 0x1000>;
        interrupts = <GIC_SPI 702 IRQ_TYPE_LEVEL_HIGH 0>;
    };

Annotation

Implementation Notes