Bluetooth: btmtk: Declare MT7920 (MT7961 1a) Bluetooth firmware

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btmtk_fw_get_filename() constructs the firmware name at runtime, so for
the MT7920 variant (dev_id 0x7961 with fw_flavor set) it requests
"mediatek/BT_RAM_CODE_MT7961_1a_2_hdr.bin" without ever declaring it via
MODULE_FIRMWARE(). Tools that select firmware from module metadata (e.g.
"modinfo -F firmware") therefore omit this blob, so request_firmware()
fails and Bluetooth does not initialise on MT7920, even though the file
is present in linux-firmware.

Declare it with MODULE_FIRMWARE(), as the mt76 driver already does for
the corresponding MT7920 wifi firmware.

Fixes: 1cb63d80ff ("Bluetooth: btusb: Add support Mediatek MT7920")
Signed-off-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

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Ivan Hu 2026-09-04 13:30:07 +08:00 • committed by Luiz Augusto von Dentz

parent 3621f78d43

commit 3d8a8e81ea

2 changed files with 2 additions and 0 deletions

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drivers/bluetooth/btmtk.c

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drivers/bluetooth/btmtk.h

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