Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/thermal/ti,j72xx-thermal.yaml
Extension
.yaml
Size
2475 bytes
Lines
98
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/thermal/ti,j72xx-thermal.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments J72XX VTM (DTS)

maintainers:
  - Keerthy <j-keerthy@ti.com>

description: |
  The TI K3 family of SoCs typically have a Voltage & Thermal
  Management (VTM) device to control up to 8 temperature diode
  sensors to measure silicon junction temperatures from different
  hotspots of the chip as well as provide temperature, interrupt
  and alerting information.

  The following polynomial equation can then be used to convert
  value returned by this device into a temperature in Celsius

  Temp(C) = (-9.2627e-12) * x^4 + (6.0373e-08) * x^3 + \
            (-1.7058e-04) * x^2 + (3.2512e-01) * x   + (-4.9003e+01)

$ref: thermal-sensor.yaml#

properties:
  compatible:
    enum:
      - ti,j721e-vtm
      - ti,j7200-vtm

  reg:
    items:
      - description: VTM cfg1 register space
      - description: VTM cfg2 register space
      - description: |
          A software trimming method must be applied to some Jacinto
          devices to function properly. This eFuse region provides
          the information needed for these SoCs to report
          temperatures accurately.
    minItems: 2

  power-domains:
    maxItems: 1

  "#thermal-sensor-cells":
    const: 1

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: ti,j721e-vtm
    then:
      properties:
        reg:
          minItems: 3
    else:
      properties:
        reg:
          maxItems: 2

required:
  - compatible
  - reg
  - power-domains

unevaluatedProperties: false

Annotation

Implementation Notes