74 lines
1.7 KiB
YAML
74 lines
1.7 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/thermal/nvidia,tegra30-tsensor.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NVIDIA Tegra30 Thermal Sensor
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maintainers:
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- Dmitry Osipenko <digetx@gmail.com>
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- Jon Hunter <jonathanh@nvidia.com>
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- Thierry Reding <thierry.reding@gmail.com>
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description: |
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TSENSOR provides thermal and voltage sensors which monitor temperature
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and voltage of the chip. Sensors are placed across the die to gauge the
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temperature of the whole chip. The TSENSOR module:
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Generates an interrupt to SW to lower temperature via DVFS on reaching
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a certain thermal/voltage threshold.
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Generates a signal to the CAR to reduce CPU frequency by half on reaching
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a certain thermal/voltage threshold.
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Generates a signal to the PMC when the temperature reaches dangerously high
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levels to reset the chip and sets a flag in the PMC.
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TSENSOR has two channels which monitor two different spots of the SoC.
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properties:
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compatible:
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const: nvidia,tegra30-tsensor
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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resets:
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maxItems: 1
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interrupts:
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maxItems: 1
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"#thermal-sensor-cells":
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const: 1
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assigned-clock-parents: true
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assigned-clock-rates: true
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assigned-clocks: true
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required:
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- compatible
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- reg
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- clocks
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- resets
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- interrupts
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- "#thermal-sensor-cells"
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additionalProperties: false
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examples:
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- |
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thermal-sensor@70014000 {
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compatible = "nvidia,tegra30-tsensor";
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reg = <0x70014000 0x500>;
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interrupts = <0 102 4>;
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clocks = <&clk 100>;
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resets = <&rst 100>;
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#thermal-sensor-cells = <1>;
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};
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