Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml
Extension
.yaml
Size
2274 bytes
Lines
76
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/regulator/mediatek,mt6316d-regulator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MediaTek MT6316 DP/TP SPMI PMIC Regulators

maintainers:
  - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

description:
  The MediaTek MT6316DP/TP PMICs are fully controlled by SPMI interface, both
  feature four step-down DC/DC (buck) converters, and provides a single Phase,
  joining Buck 1+2+3+4.

properties:
  compatible:
    const: mediatek,mt6316d-regulator

  reg:
    maxItems: 1

  vbuck1234:
    type: object
    $ref: regulator.yaml#
    unevaluatedProperties: false
    properties:
      regulator-allowed-modes:
        description: |
          Allowed Buck regulator operating modes allowed. Valid values below.
            0 - Normal mode with automatic power saving, reducing the switching
                frequency when light load conditions are detected
            1 - Forced Continuous Conduction mode (FCCM) for improved voltage
                regulation accuracy with constant switching frequency but lower
                regulator efficiency
            2 - Forced Low Power mode for improved regulator efficiency, used
                when no heavy load is expected, will shut down unnecessary IP
                blocks and secondary phases to reduce quiescent current.
                This mode does not limit the maximum output current but unless
                only a light load is applied, there will be regulation accuracy
                and efficiency losses.
        minItems: 1
        maxItems: 3
        items:
          enum: [ 0, 1, 2 ]

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/spmi/spmi.h>

    spmi {
      #address-cells = <2>;
      #size-cells = <0>;

      pmic@7 {
        compatible = "mediatek,mt6316d-regulator";
        reg = <0x7 SPMI_USID>;

        vbuck1234 {
          regulator-name = "dvdd_gpustack";
          regulator-min-microvolt = <400000>;
          regulator-max-microvolt = <1277500>;
          regulator-allowed-modes = <0 1 2>;

Annotation

Implementation Notes