raspberrypi,pico-temp
Vendor: Raspberry Pi Foundation
Note
An implementation of a driver matching this compatible is available in drivers/sensor/rpi_pico_temp/rpi_pico_temp.c.
Description
RaspberryPi Pico family temperature sensor node
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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Vbe voltage in microvolts at 27 degrees C. Vbe = 0.706V typically.
The temperature sensor measures the Vbe voltage of a biased bipolar diode.
The temperature calculates from the Vbe voltage measured by the sensor
using the following equation typical case.
T = 27 - (ADC_Voltage - 0.706)/0.001721
See also the vbe-slope section.
Default value: |
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The slope of Vbe voltage in microvolts per degree C.
Typically, a slope of -1.721mV per degree.
See also the vbe section.
Default value: |
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Human readable string describing the sensor. It can be used to
distinguish multiple instances of the same model (e.g., lid accelerometer
vs. base accelerometer in a laptop) to a host operating system.
This property is defined in the Generic Sensor Property Usages of the HID
Usage Tables specification
(https://usb.org/sites/default/files/hut1_3_0.pdf, section 22.5).
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Deprecated properties not inherited from the base binding file.
(None)
Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “raspberrypi,pico-temp” compatible.
Name |
Type |
Details |
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ADC channel for CPU temperature sensor
This property is required. |
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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register space
See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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