st,stm32wl-subghz-radio (on spi bus)
Vendor: STMicroelectronics N.V.
Note
An implementation of a driver matching this compatible is available in drivers/lora.
Description
STM32WL SUBGHZ Radio
Properties
Node specific properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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Selects between the low- and high-power power amplifier output pin.
This property is required. Legal values: |
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Maximum design power for the board's RFO_LP output matching network.
The default setting of +14 dBm is a prevalent board configuration;
however, for optimal performance, it is advisable to align the value with
the board's RF design.
See ST application note AN5457, chapter 5.1.2 for more information.
Default value: Legal values: |
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Maximum design power for the board's RFO_HP output matching network.
The default setting of +22 dBm is a prevalent board configuration;
however, for optimal performance, it is advisable to align the value with
the board's RF design.
See ST application note AN5457, chapter 5.1.2 for more information.
Default value: Legal values: |
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GPIO connected to the modem's NRESET signal.
This signal is open-drain, active-low as interpreted by the
modem.
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GPIO connected to the modem's BUSY signal.
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Antenna power enable pin.
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Antenna switch TX enable GPIO. If set, the driver tracks the
state of the radio and controls the RF switch.
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Antenna switch RX enable GPIO. If set, the driver tracks the
state of the radio and controls the RF switch.
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GPIO connected to DIO1. This GPIO will be used as a generic
IRQ line from the chip.
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Use DIO2 to drive an RF switch selecting between the TX and RX
paths. When enabled, DIO2 goes high when the chip is
transmitting.
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TCXO supply voltage controlled by DIO3 if present.
See constants in dt-bindings/lora/sx126x.h.
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Startup delay to let the TCXO stabilize after TCXO power on.
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Maximum clock frequency of device's SPI interface in Hz
This property is required. |
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Duplex mode, full or half. By default it's always full duplex thus 0
as this is, by far, the most common mode.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
0 SPI_FULL_DUPLEX
2048 SPI_HALF_DUPLEX
Legal values: |
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Motorola or TI frame format. By default it's always Motorola's,
thus 0 as this is, by far, the most common format.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
0 SPI_FRAME_FORMAT_MOTOROLA
32768 SPI_FRAME_FORMAT_TI
Legal values: |
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SPI clock polarity which indicates the clock idle state.
If it is used, the clock idle state is logic high; otherwise, low.
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SPI clock phase that indicates on which edge data is sampled.
If it is used, data is sampled on the second edge; otherwise, on the first edge.
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In some cases, it is necessary for the master to manage SPI chip select
under software control, so that multiple spi transactions can be performed
without releasing it. A typical use case is variable length SPI packets
where the first spi transaction reads the length and the second spi transaction
reads length bytes.
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GPIO specifier that controls power to the device.
This property should be provided when the device has a dedicated
switch that controls power to the device. The supply state is
entirely the responsibility of the device driver.
Contrast with vin-supply.
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Reference to the regulator that controls power to the device.
The referenced devicetree node must have a regulator compatible.
This property should be provided when device power is supplied
by a shared regulator. The supply state is dependent on the
request status of all devices fed by the regulator.
Contrast with supply-gpios. If both properties are provided
then the regulator must be requested before the supply GPIOS is
set to an active state, and the supply GPIOS must be set to an
inactive state before releasing the regulator.
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Deprecated node specific properties
Deprecated properties not inherited from the base binding file.
(None)
Base properties
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 “st,stm32wl-subghz-radio” compatible.
Name |
Type |
Details |
|---|---|---|
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Position of the "Radio IRQ, Busy" interrupt line.
This property is required. See Important properties for more information. |
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register space
This property is required. See Important properties for more information. |
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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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name of each register space
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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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IO channels 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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