Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml

File Facts

System: Linux kernel
Corpus path: Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
Extension: .yaml
Size: 9092 bytes
Lines: 289
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.

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

dt-bindings/interrupt-controller/irq.h
dt-bindings/regulator/nxp,pca9450-regulator.h

Detected Declarations

No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/nxp,pca9450-regulator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NXP PCA9450A/B/C Power Management Integrated Circuit regulators

maintainers:
  - Robin Gong <yibin.gong@nxp.com>

description: |
  Regulator nodes should be named to BUCK_<number> and LDO_<number>. The
  definition for each of these nodes is defined using the standard
  binding for regulators at
  Documentation/devicetree/bindings/regulator/regulator.txt.
  Datasheet is available at
  https://www.nxp.com/docs/en/data-sheet/PCA9450DS.pdf

  Support PF9453, Datasheet is available at
  https://www.nxp.com/docs/en/data-sheet/PF9453_SDS.pdf

# The valid names for PCA9450 regulator nodes are:
# BUCK1, BUCK2, BUCK3, BUCK4, BUCK5, BUCK6,
# LDO1, LDO2, LDO3, LDO4, LDO5
# Note: Buck3 removed on PCA9450B and connect with Buck1 on PCA9450C.

properties:
  compatible:
    enum:
      - nxp,pca9450a
      - nxp,pca9450b
      - nxp,pca9450c
      - nxp,pca9451a
      - nxp,pca9452
      - nxp,pf9453

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  inl1-supply:
    description: Regulator supply for the INL1 pin group, powering LDOx

  inb13-supply:
    description:
      Regulator supply for the INB13 pin group, powering BUCK1 and BUCK3.

  inb26-supply:
    description:
      Regulator supply for the INB26 pin group, powering BUCK2 and BUCK6.

  inb45-supply:
    description:
      Regulator supply for the INB45 pin group, powering BUCK4 and BUCK5.

  regulators:
    type: object
    description: |
      list of regulators provided by this controller

    properties:
      LDO5:
        type: object
        $ref: regulator.yaml#
        description:
          Properties for single LDO5 regulator.

Annotation

Immediate include surface: `dt-bindings/interrupt-controller/irq.h`, `dt-bindings/regulator/nxp,pca9450-regulator.h`.
Atlas domain: Support Tooling And Documentation / Documentation.
Implementation status: atlas-only.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.