Random BT failure on Rb8 device

[bhargav0610]

BT test failure was random, and reproducibility is very less and BT is not powering on Bluetooth: hci0: Opcode 0x0c03 failed: -110

https://lava.infra.foundries.io/scheduler/job/181037#L4087

[BT-DIAG] Mar 13 15:35:17 iq-9075-evk bluetoothd[730]: Failed to set mode: Authentication Failed (0x05)
[WARN] 2026-03-13 15:38:33 - bluetoothctl list returned no controllers in non-interactive mode.
[WARN] 2026-03-13 15:38:33 - On minimal/ramdisk images this can be normal; interactive bluetoothctl may still work.
[INFO] 2026-03-13 15:38:33 - Proceeding with interactive bluetoothctl for controller queries (non-interactive output incomplete on some images).
[INFO] 2026-03-13 15:38:36 - Initial Powered = no
[INFO] 2026-03-13 15:38:36 - Powering OFF...
[INFO] 2026-03-13 15:38:37 - btpower: hci0 already Powered=no; skipping 'power off'.
[PASS] 2026-03-13 15:38:38 - Post-OFF verification: Powered=no (as expected).
[INFO] 2026-03-13 15:38:38 - Powering ON...
[INFO] 2026-03-13 15:38:39 - btpower: requesting 'on' on hci0 (current=no)
[ 219.970272] Bluetooth: hci0: Opcode 0x0c03 failed: -110
[WARN] 2026-03-13 15:39:10 - btpower: hci0 state after request is 'no' (wanted on). (PowerState last='on')

[bhargav0610]

still facing the issue https://lava.infra.foundries.io/scheduler/job/185568#L4100

[INFO] 2026-04-23 02:09:29 - Powering OFF...
[INFO] 2026-04-23 02:09:30 - btpower: hci0 already Powered=no; skipping 'power off'.
[PASS] 2026-04-23 02:09:31 - Post-OFF verification: Powered=no (as expected).
[INFO] 2026-04-23 02:09:31 - Powering ON...
[INFO] 2026-04-23 02:09:32 - btpower: requesting 'on' on hci0 (current=no)
[ 219.650532] Bluetooth: hci0: Opcode 0x0c03 failed: -110
[WARN] 2026-04-23 02:10:04 - btpower: hci0 state after request is 'no' (wanted on). (PowerState last='on')

• /home/lava-185568/0/tests/9_BT_ON_OFF/Runner/utils/send-to-lava.sh BT_ON_OFF.res
  <<<LAVA_SIGNAL_TESTCASE TEST_CASE_ID=BT_ON_OFF RESULT=FAIL>>>