Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml
Extension
.yaml
Size
1588 bytes
Lines
68
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/qcom/qcom-stats.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm Technologies, Inc. (QTI) Stats

maintainers:
  - Maulik Shah <quic_mkshah@quicinc.com>

description:
  Always On Processor/Resource Power Manager maintains statistics of the SoC
  sleep modes involving powering down of the rails and oscillator clock.

  Statistics includes SoC sleep mode type, number of times low power mode were
  entered, time of last entry, time of last exit and accumulated sleep duration.

properties:
  compatible:
    enum:
      - qcom,rpmh-stats
      - qcom,sdm845-rpmh-stats
      - qcom,rpm-stats
      # For older RPM firmware versions with fixed offset for the sleep stats
      - qcom,apq8084-rpm-stats
      - qcom,msm8226-rpm-stats
      - qcom,msm8916-rpm-stats
      - qcom,msm8974-rpm-stats

  reg:
    maxItems: 1

  qcom,qmp:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: Reference to the AOSS side-channel message RAM

required:
  - compatible
  - reg

allOf:
  - if:
      not:
        properties:
          compatible:
            const: qcom,rpmh-stats
    then:
      properties:
        qcom,qmp: false

additionalProperties: false

examples:
  # Example of rpmh sleep stats
  - |
    sram@c3f0000 {
      compatible = "qcom,rpmh-stats";
      reg = <0x0c3f0000 0x400>;
    };
  # Example of rpm sleep stats
  - |
    sram@4690000 {
      compatible = "qcom,rpm-stats";
      reg = <0x04690000 0x10000>;
    };
...

Annotation

Implementation Notes