Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
Extension
.yaml
Size
3767 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.

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/soc/mediatek/mediatek,mutex.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Mediatek mutex

maintainers:
  - Chun-Kuang Hu <chunkuang.hu@kernel.org>
  - Philipp Zabel <p.zabel@pengutronix.de>

description: |
  Mediatek mutex, namely MUTEX, is used to send the triggers signals called
  Start Of Frame (SOF) / End Of Frame (EOF) to each sub-modules on the display
  data path or MDP data path.
  In some SoC, such as mt2701, MUTEX could be a hardware mutex which protects
  the shadow register.
  MUTEX device node 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:
    enum:
      - mediatek,mt2701-disp-mutex
      - mediatek,mt2712-disp-mutex
      - mediatek,mt6795-disp-mutex
      - mediatek,mt8167-disp-mutex
      - mediatek,mt8173-disp-mutex
      - mediatek,mt8183-disp-mutex
      - mediatek,mt8186-disp-mutex
      - mediatek,mt8186-mdp3-mutex
      - mediatek,mt8188-disp-mutex
      - mediatek,mt8188-vpp-mutex
      - mediatek,mt8192-disp-mutex
      - mediatek,mt8195-disp-mutex
      - mediatek,mt8195-vpp-mutex
      - mediatek,mt8365-disp-mutex

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  power-domains:
    description: A phandle and PM domain specifier as defined by bindings of
      the power controller specified by phandle. See
      Documentation/devicetree/bindings/power/power-domain.yaml for details.

  clocks:
    items:
      - description: MUTEX Clock

  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,gce-client-reg:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    items:
      items:
        - description: phandle of GCE
        - description: GCE subsys id
        - description: register offset

Annotation

Implementation Notes