crosstyan
efc6e17ed0
Add a module-local .gitignore entry for macOS .DS_Store artifacts so generated Finder metadata does not dirty the submodule. Declare the SPI chip-select delay binding properties as integers so Zephyr devicetree validation accepts the custom LLCC68 binding. Pass the configured setup delay into SPI_DT_SPEC_INST_GET using the Zephyr 4 three-argument API, converting the nanosecond devicetree value to the microsecond spi_cs_control delay field.
80 lines
2.1 KiB
YAML
80 lines
2.1 KiB
YAML
# Copyright (c) 2019 Manivannan Sadhasivam
|
|
# Copyright (c) 2020 Andreas Sandberg
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
description: |
|
|
Semtech LLCC68 radio transceiver used with the Weihua application driver.
|
|
|
|
This compatible intentionally differs from Zephyr's upstream
|
|
semtech,llcc68 binding so the application-owned driver can coexist
|
|
with Zephyr releases that ship a native LLCC68 binding and driver.
|
|
|
|
compatible: "semtech,llcc68-weihua"
|
|
|
|
include: spi-device.yaml
|
|
|
|
properties:
|
|
reset-gpios:
|
|
type: phandle-array
|
|
required: true
|
|
description: |
|
|
GPIO connected to the modem's NRESET signal.
|
|
|
|
This signal is open-drain, active-low as interpreted by the
|
|
modem.
|
|
|
|
busy-gpios:
|
|
type: phandle-array
|
|
required: true
|
|
description: |
|
|
GPIO connected to the modem's BUSY signal.
|
|
|
|
dio1-gpios:
|
|
type: phandle-array
|
|
required: true
|
|
description: |
|
|
GPIO connected to DIO1. This GPIO will be used as a generic
|
|
IRQ line from the chip.
|
|
|
|
tx-enable-gpios:
|
|
type: phandle-array
|
|
description: |
|
|
Antenna switch TX enable GPIO. If set, the driver tracks the
|
|
state of the radio and controls the RF switch.
|
|
|
|
rx-enable-gpios:
|
|
type: phandle-array
|
|
description: |
|
|
Antenna switch RX enable GPIO. If set, the driver tracks the
|
|
state of the radio and controls the RF switch.
|
|
|
|
rf-switch-mode:
|
|
type: string
|
|
enum:
|
|
- "none"
|
|
- "gpio-complementary"
|
|
- "dio2-single"
|
|
description: |
|
|
Optional RF switch control mode.
|
|
|
|
"none" disables RF switch handling.
|
|
|
|
"gpio-complementary" controls TXEN/RXEN from MCU GPIOs using the
|
|
complementary table:
|
|
idle: TXEN=0, RXEN=0
|
|
RX: TXEN=0, RXEN=1
|
|
TX: TXEN=1, RXEN=0
|
|
This mode requires tx-enable-gpios and rx-enable-gpios.
|
|
|
|
"dio2-single" enables LLCC68 DIO2-as-RF-switch control for TXEN.
|
|
RXEN must be externally pulled active or supplied as rx-enable-gpios,
|
|
which the driver holds active. This mode must not use tx-enable-gpios.
|
|
|
|
spi-cs-setup-delay-ns:
|
|
type: int
|
|
default: 100000
|
|
|
|
spi-cs-hold-delay-ns:
|
|
type: int
|
|
default: 100000
|