Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/thermal/nvidia,tegra30-tsensor.yaml
Extension
.yaml
Size
1630 bytes
Lines
71
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/nvidia,tegra30-tsensor.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: NVIDIA Tegra30 Thermal Sensor

maintainers:
  - Dmitry Osipenko <digetx@gmail.com>
  - Jon Hunter <jonathanh@nvidia.com>
  - Thierry Reding <thierry.reding@gmail.com>

description: |
  TSENSOR provides thermal and voltage sensors which monitor temperature
  and voltage of the chip. Sensors are placed across the die to gauge the
  temperature of the whole chip. The TSENSOR module:

    Generates an interrupt to SW to lower temperature via DVFS on reaching
    a certain thermal/voltage threshold.

    Generates a signal to the CAR to reduce CPU frequency by half on reaching
    a certain thermal/voltage threshold.

    Generates a signal to the PMC when the temperature reaches dangerously high
    levels to reset the chip and sets a flag in the PMC.

  TSENSOR has two channels which monitor two different spots of the SoC.

$ref: thermal-sensor.yaml#

properties:
  compatible:
    const: nvidia,tegra30-tsensor

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  resets:
    maxItems: 1

  interrupts:
    maxItems: 1

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

required:
  - compatible
  - reg
  - clocks
  - resets
  - interrupts

unevaluatedProperties: false

examples:
  - |
    thermal-sensor@70014000 {
      compatible = "nvidia,tegra30-tsensor";
      reg = <0x70014000 0x500>;
      interrupts = <0 102 4>;
      clocks = <&clk 100>;
      resets = <&rst 100>;

      #thermal-sensor-cells = <1>;
    };

Annotation

Implementation Notes