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Bluetooth: hci_bcm4377: Ignore reserved PHY in ext adv reports on BCM4378

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Commit ed2a2ef16a ("Bluetooth: Add quirk to ignore reserved PHY bits in
LE Extended Adv Report") added a quirk to handle creative use of the
reserved bits in the PHY fields for 4388 controllers in Apple silicon.

I observed the same issue with the BCM4378 Bluetooth controller (14e4:5f69,
rev 05) on an Apple MacBook Pro (13-inch, M2, 2022):

> HCI Event: LE Meta Event (0x3e) plen 51
      LE Extended Advertising Report (0x0d)
        Num reports: 1
        Entry 0
          Event type: 0x2513
            Props: 0x0013
              Connectable
              Scannable
              Use legacy advertising PDUs
            Data status: Complete
            Reserved (0x2500)
          Legacy PDU Type: Reserved (0x2513)
          Address type: Random (0x01)
          Address: EA:C1:82:F0:24:C6 (Static)
          Primary PHY: Reserved
          Secondary PHY: No packets
          SID: no ADI field (0xff)
          TX power: 127 dBm
          RSSI: -57 dBm (0xc7)
          Periodic advertising interval: 0.00 msec (0x0000)
          Direct address type: Public (0x00)
          Direct address: 00:00:00:00:00:00 (OUI 00-00-00)
          Data length: 25

This results in the firmware rejecting connection attempts with
"Unsupported Feature or Parameter Value" (0x11).

Fix the issue by using the same quirk for BCM4378 devices too.

I tested this locally and confirmed that the issue is resolved.

This was observed when attempting to connect a Kinesis Advantage 360
keyboard to the MacBook.

Assisted-by: Claude:claude-fable-5
Fixes: 2e7ed5f5e6 ("Bluetooth: hci_sync: Use advertised PHYs on hci_le_ext_create_conn_sync")
Cc: stable@vger.kernel.org
Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Reviewed-by: Sven Peter <sven@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This commit is contained in:
Lorenzo Stoakes (ARM) 2026-08-18 10:49:34 +01:00 committed by Luiz Augusto von Dentz
parent 4beb198bc5
commit aec6a8d80e
1 changed files with 1 additions and 0 deletions
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1
drivers/bluetooth/hci_bcm4377.c
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@ -2490,6 +2490,7 @@ static const struct bcm4377_hw bcm4377_hw_variants[] = {
.has_bar0_core2_window2 = true,
.broken_mws_transport_config = true,
.broken_le_coded = true,
.broken_le_ext_adv_report_phy = true,
.send_calibration = bcm4378_send_calibration,
.send_ptb = bcm4378_send_ptb,
},