Initial import

dts/bindings/lora/semtech,lr11xx.yaml

@@ -0,0 +1,46 @@
+# Copyright (c) 2024 loramodem contributors
+# SPDX-License-Identifier: Apache-2.0
+
+description: |
+  Semtech LR1110/LR1120 multi-protocol radio transceiver.
+
+  This driver implements Zephyr's LoRa subsystem API for LoRa packet mode
+  only. LoRaWAN and GNSS capabilities of the LR11xx are not used.
+
+  The LR11xx uses a 2-byte SPI opcode protocol that differs from the
+  SX126x family: commands consist of a 2-byte opcode followed by
+  parameters. Responses are read in a separate transaction after
+  asserting NSS, beginning with STAT1 and STAT2 status bytes.
+
+compatible: "semtech,lr11xx"
+
+include: spi-device.yaml
+
+properties:
+  reset-gpios:
+    type: phandle-array
+    required: true
+    description: |
+      GPIO connected to NRESET (active low). Drive low for >= 100 us
+      to reset the chip.
+
+  busy-gpios:
+    type: phandle-array
+    required: true
+    description: |
+      GPIO connected to the BUSY pin (active high).
+      The host must wait for BUSY to go low before starting a new
+      SPI transaction.
+
+  event-gpios:
+    type: phandle-array
+    required: true
+    description: |
+      GPIO connected to the DIO9 / EVENT pin (active high).
+      Used for RX packet-ready and TX-done interrupts.
+
+  lf-clk-gpios:
+    type: phandle-array
+    description: |
+      Optional: GPIO to enable/disable the LF clock output from LR11xx.
+      Some board designs use this to drive an external 32.768 kHz crystal.