Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
Extension
.yaml
Size
4348 bytes
Lines
169
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/media/mediatek,mdp3-rdma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MediaTek Read Direct Memory Access

maintainers:
  - Matthias Brugger <matthias.bgg@gmail.com>
  - Moudy Ho <moudy.ho@mediatek.com>

description: |
  MediaTek Read Direct Memory Access(RDMA) component used to do read DMA.
  It contains one line buffer to store the sufficient pixel data, and
  must be siblings to the central MMSYS_CONFIG node.
  For a description of the MMSYS_CONFIG binding, see
  Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
  for details.

properties:
  compatible:
    oneOf:
      - enum:
          - mediatek,mt8183-mdp3-rdma
          - mediatek,mt8188-mdp3-rdma
          - mediatek,mt8195-mdp3-rdma
          - mediatek,mt8195-vdo1-rdma
      - items:
          - const: mediatek,mt8188-vdo1-rdma
          - const: mediatek,mt8195-vdo1-rdma

  reg:
    maxItems: 1

  mediatek,gce-client-reg:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      items:
        - description: phandle of GCE
        - description: GCE subsys id
        - description: register offset
        - description: register size
    description: The register of client driver can be configured by gce with
      4 arguments defined in this property. Each GCE subsys id is mapping to
      a client defined in the header include/dt-bindings/gce/<chip>-gce.h.

  mediatek,gce-events:
    description:
      The event id which is mapping to the specific hardware event signal
      to gce. The event id is defined in the gce header
      include/dt-bindings/gce/<chip>-gce.h of each chips.
    $ref: /schemas/types.yaml#/definitions/uint32-array

  mediatek,scp:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      Phandle to the System Control Processor (SCP) used for initializing
      and stopping the MDP3, for sending frame data locations to the MDP3's
      VPU and to install Inter-Processor Interrupt handlers to control
      processing states.

  power-domains:
    maxItems: 1

  clocks:
    items:
      - description: RDMA clock
      - description: RSZ clock
    minItems: 1

Annotation

Implementation Notes