Bluetooth: btintel_pcie: sync mbox tlv parsing with GP0 alive interrupt

Performing a target access to read the mbox TLV table while the driver
is concurrently posting RX buffers to the firmware causes the hardware
to return 0 for the target address, resulting in an invalid/empty TLV
parse.

Add a synchronization handshake between the mbox TLV read operation
performed by the mbox worker and the GP0 (alive) MSI-X interrupt (which
signals completion of RX buffer posting). The worker now waits for the
alive interrupt before initiating the target access, ensuring the
hardware returns valid data.

Assisted-by: Gemini:gemini-3.1-pro-preview
Signed-off-by: Kiran K <kiran.k@intel.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

0 files changed, 0 insertions, 0 deletions