Bluetooth: drivers: Rename IPM to IPC

This bus type was originally created for what's today the ipc.c HCI driver.
Since this type hasn't yet been synced with BlueZ, rename it for
consistency, however leave the old define to not break backwards
compatibility with existing DT bindings (there are several more that use
"ipm" than ipc.c).

Signed-off-by: Johan Hedberg <[email protected]>

Author: jhedberg

dts/bindings/bluetooth/bt-hci.yaml

@@ -21,7 +21,8 @@ properties:
       - "i2c"
       - "smd"
       - "virtio"
-      - "ipm"
+      - "ipm"    # Deprecated. "ipc" should be used instead.
+      - "ipc"
   bt-hci-quirks:
     type: string-array
     description: HCI device quirks

dts/bindings/bluetooth/zephyr,bt-hci-ipc.yaml

@@ -8,7 +8,7 @@ properties:
   bt-hci-name:
     default: "IPC"
   bt-hci-bus:
-    default: "ipm"
+    default: "ipc"
   bt-hci-quirks:
     default: ["no-auto-dle"]
   bt-hci-ipc-name:

include/zephyr/drivers/bluetooth.h

@@ -71,7 +71,9 @@ enum bt_hci_bus {
 	BT_HCI_BUS_I2C           = 8,
 	BT_HCI_BUS_SMD           = 9,
 	BT_HCI_BUS_VIRTIO        = 10,
-	BT_HCI_BUS_IPM           = 11,
+	BT_HCI_BUS_IPC           = 11,
+	/* IPM is deprecated and simply an alias for IPC */
+	BT_HCI_BUS_IPM           = BT_HCI_BUS_IPC,
 };
 
 #define BT_DT_HCI_QUIRK_OR(node_id, prop, idx) \