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semtech,sx1276 (on spi bus)

Vendor: Semtech Corporation

Description

Semtech SX1276 LoRa Modem

Properties

Properties not inherited from the base binding file.

Name

Type

Details

reset-gpios

phandle-array

GPIO connected to the modem's RESET/NRESET signal.

This signal is open-drain, active-high (SX1272/3) or
active-low (SX1276/7/8/9) as interpreted by the modem.

This property is required.

dio-gpios

phandle-array

Up to six pins that produce service interrupts from the modem.

These signals are normally active-high.

This property is required.

power-amplifier-output

string

Selects power amplifier output pin. This is required when neither
'rfo-enable-gpios' nor 'pa-boost-enable-gpios' is specified. In other
case this property is simply ignored.

Legal values: 'rfo', 'pa-boost'

antenna-enable-gpios

phandle-array

Antenna power enable pin.

rfi-enable-gpios

phandle-array

RFI antenna input enable pin.

rfo-enable-gpios

phandle-array

RFO antenna output enable pin.

pa-boost-enable-gpios

phandle-array

PA_BOOST antenna output enable pin.

tcxo-power-gpios

phandle-array

TCXO power enable pin.

tcxo-power-startup-delay-ms

int

Delay which has to be applied after enabling TCXO power.

spi-max-frequency

int

Maximum clock frequency of device's SPI interface in Hz

This property is required.

duplex

int

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: 0, 2048

supply-gpios

phandle-array

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.

vin-supply

phandle

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.