[Bug 216936] First attempt to upload firmware for Intel Bluetooth fails (a timing issue?)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=216936

--- Comment #20 from Artem S. Tashkinov (aros@gmx.com) ---
This is still reproducible in 6.8.5:

dmesg -t | grep -i blue
Bluetooth: Core ver 2.22
NET: Registered PF_BLUETOOTH protocol family
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
Bluetooth: hci0: Found device firmware: intel/ibt-18-16-1.sfi
Bluetooth: hci0: Boot Address: 0x40800
Bluetooth: hci0: Firmware Version: 173-5.24
Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Bluetooth: BNEP socket layer initialized
Bluetooth: hci0: FW download error recovery failed (-19)
Bluetooth: hci0: sending frame failed (-19)
Bluetooth: hci0: Reading supported features failed (-19)
Bluetooth: hci0: Error reading debug features
Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not
supported.
Bluetooth: hci0: sending frame failed (-19)
Bluetooth: hci0: Failed to read MSFT supported features (-19)
Bluetooth: hci0: Bootloader revision 0.1 build 42 week 52 2015
Bluetooth: hci0: Device revision is 2
Bluetooth: hci0: Secure boot is enabled
Bluetooth: hci0: OTP lock is enabled
Bluetooth: hci0: API lock is enabled
Bluetooth: hci0: Debug lock is disabled
Bluetooth: hci0: Minimum firmware build 1 week 10 2014
Bluetooth: hci0: Found device firmware: intel/ibt-18-16-1.sfi
Bluetooth: hci0: Boot Address: 0x40800
Bluetooth: hci0: Firmware Version: 173-5.24
Bluetooth: hci0: Waiting for firmware download to complete
Bluetooth: hci0: Firmware loaded in 1129749 usecs
Bluetooth: hci0: Waiting for device to boot
Bluetooth: hci0: Device booted in 14839 usecs
Bluetooth: hci0: Malformed MSFT vendor event: 0x02
Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-18-16-1.ddc
Bluetooth: hci0: Applying Intel DDC parameters completed
Bluetooth: hci0: Firmware revision 0.1 build 173 week 5 2024
Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not
supported.
Bluetooth: MGMT ver 1.22
Bluetooth: ISO socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM ver 1.11

No timings, btintel just tries to load the firmware when it's already there (if
you're rebooting from Windows).

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