[Bug 217805] Qualcomm NFA725A on T14s AMD Gen3: Bluetooth: hci0: Failed to send headers (or body or access otp area)

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=217805

--- Comment #3 from François Armand (fanf42@gmail.com) ---
More information on that subject: 

- the bluetooth antenna was physically disconnect from the chipset, I
reconnected it. 

- now, I'm able to have bluetooth from an old ubuntu 22.04 live usb key, 
- I still don't have it from a modern linux 6.6.4 arch kernel

The main difference I noticed happened when the firmware is loaded: 

- on ubuntu, where it works: 

Dec 08 07:00:36 ubuntu kernel: usb 1-3: new high-speed USB device number 2
using xhci_hcd
...
Decrep 08 07:00:36 ubuntu kernel: usb 1-3.1: new full-speed USB device number 3
using xhci_hcd
Dec 08 07:00:36 ubuntu kernel: usb 1-3.1: New USB device found, idVendor=10ab,
idProduct=9309, bcdDevice= 0.01
Dec 08 07:00:36 ubuntu kernel: usb 1-3.1: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
...
Dec 08 07:00:37 ubuntu kernel: thinkpad_acpi: radio switch found; radios are
enabled
...
Dec 08 07:00:37 ubuntu kernel: thinkpad_acpi: rfkill switch
tpacpi_bluetooth_sw: radio is unblocked
....


- on the newer kernel:
Dec 08 08:54:42 lalande21185 kernel: thinkpad_acpi: radio switch found; radios
are enabled
...

Dec 08 08:54:42 lalande21185 kernel: thinkpad_acpi: rfkill switch
tpacpi_bluetooth_sw: radio is unblocked

Dec 08 07:00:3Dec 08 08:56:14 lalande21185 kernel: usb 1-3.1: new full-speed
USB device number 5 using xhci_hcd
Dec 08 08:56:14 lalande21185 kernel: usb 1-3.1: New USB device found,
idVendor=10ab, idProduct=9309, bcdDevice= 0.01
Dec 08 08:56:14 lalande21185 kernel: usb 1-3.1: New USB device strings: Mfr=0,
Product=0, SerialNumber=0
Dec 08 08:56:15 lalande21185 kernel: Bluetooth: hci0: using rampatch file:
qca/rampatch_usb_00130201.bin
Dec 08 08:56:15 lalande21185 kernel: Bluetooth: hci0: QCA: patch rome 0x130201
build 0x65e2, firmware rome 0x130201 build 0x38e6
Dec 08 08:56:15 lalande21185 kernel: Bluetooth: hci0: Failed to send headers
(-71)
Dec 08 08:56:15 lalande21185 kernel: usb 1-3.1: USB disconnect, device number 5
8 ubuntu kernel: Bluetooth: hci0: using NVM file: qca/nvm_usb_00130201_gf.bin



Could it have something to do with the `thinkpad_acpi` module? The exact rome
build is not the same too, which is expected I think for a newer kernel

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