Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/soc/mediatek/mediatek,mt8183-dvfsrc.yaml
Extension
.yaml
Size
2772 bytes
Lines
91
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.

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Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MediaTek Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC)

description:
  The Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC) is a
  Hardware module used to collect all the requests from both software and the
  various remote processors embedded into the SoC and decide about a minimum
  operating voltage and a minimum DRAM frequency to fulfill those requests in
  an effort to provide the best achievable performance per watt.
  This hardware IP is capable of transparently performing direct register R/W
  on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.

maintainers:
  - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
  - Henry Chen <henryc.chen@mediatek.com>

properties:
  compatible:
    oneOf:
      - enum:
          - mediatek,mt6893-dvfsrc
          - mediatek,mt8183-dvfsrc
          - mediatek,mt8195-dvfsrc
      - items:
          - const: mediatek,mt8192-dvfsrc
          - const: mediatek,mt8195-dvfsrc

  reg:
    maxItems: 1
    description: DVFSRC common register address and length.

  clocks:
    items:
      - description: Clock that drives the DVFSRC MCU

  regulators:
    type: object
    $ref: /schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#

  interconnect:
    type: object
    $ref: /schemas/interconnect/mediatek,mt8183-emi.yaml#

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/mt8195-clk.h>
    soc {
        #address-cells = <2>;
        #size-cells = <2>;

        system-controller@10012000 {
            compatible = "mediatek,mt8195-dvfsrc";
            reg = <0 0x10012000 0 0x1000>;
            clocks = <&topckgen CLK_TOP_DVFSRC>;

            regulators {
                compatible = "mediatek,mt8195-dvfsrc-regulator";

                dvfsrc_vcore: dvfsrc-vcore {

Annotation

Implementation Notes