Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/regulator/fitipower,fp9931.yaml
Extension
.yaml
Size
2729 bytes
Lines
112
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-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/fitipower,fp9931.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: FitiPower FP9931/JD9930 Power Management Integrated Circuit

maintainers:
  - Andreas Kemnade <andreas@kemnade.info>

description:
  FP9931 is a Power Management IC to provide Power for EPDs with one 3.3V
  switch, 2 symmetric LDOs behind 2 DC/DC converters, and one unsymmetric
  regulator for a compensation voltage.
  JD9930 has in addition some kind of night mode.

properties:
  compatible:
    oneOf:
      - const: fitipower,fp9931

      - items:
          - const: fitipower,jd9930
          - const: fitipower,fp9931

  reg:
    maxItems: 1

  enable-gpios:
    maxItems: 1

  pg-gpios:
    maxItems: 1

  en-ts-gpios:
    maxItems: 1

  xon-gpios:
    maxItems: 1

  vin-supply:
    description:
      Supply for the whole chip. Some vendor kernels and devicetrees
      declare this as a non-existing GPIO named "pwrall".

  fitipower,tdly-ms:
    description:
      Power up soft start delay settings tDLY1-4 bitfields in the
      POWERON_DELAY register
    items:
      - enum: [0, 1, 2, 4]
      - enum: [0, 1, 2, 4]
      - enum: [0, 1, 2, 4]
      - enum: [0, 1, 2, 4]

  regulators:
    type: object
    additionalProperties: false
    patternProperties:
      "^(vcom|vposneg|v3p3)$":
        unevaluatedProperties: false
        type: object
        $ref: /schemas/regulator/regulator.yaml

required:
  - compatible
  - reg
  - vin-supply
  - pg-gpios

Annotation

Implementation Notes