This reverts commit bce588b4ca081833ed8fc62062291f71d4218278 which is
commit 6f0624b4427e38c3bb63a951c536cf8adaee1238 upstream.
With the device ID in the table, the adapter is handed over to btrtl,
which in this tree, together with the backport of commit 4a23ce935f74
("Bluetooth: btrtl: Add the support for RTL8761CUV"), now requires
rtl_bt/rtl8761cu_fw.bin. That file is only shipped by linux-firmware
since 20251111. On systems with older firmware packages, such as
Debian trixie, the adapter no longer initializes. Without the ID entry
it binds via the generic Bluetooth class and works on its ROM firmware,
as it did before the backport.
Mainline keeps the ID entry, so this revert is for 6.18.y only, as agreed
in the regression thread.
Reported-by: Erik Brangs <[email protected]>
Closes: https://bugs.debian.org/1149377
Link:
https://lore.kernel.org/all/[email protected]/
Signed-off-by: Christoph Zwerschke <[email protected]>
---
Tested on 6.18.55 with both adapters and without rtl8761cu_fw.bin: with
the ID entries they fail to initialize, with both reverts they come up
on ROM firmware and A2DP works.
drivers/bluetooth/btusb.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 59fff918fd2d..9d6610b8ecfc 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -845,8 +845,6 @@ static const struct usb_device_id quirks_table[] = {
/* Additional Realtek 8761CU Bluetooth devices */
{ USB_DEVICE(0x0b05, 0x1bef), .driver_info = BTUSB_REALTEK |
BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0b05, 0x1d70), .driver_info = BTUSB_REALTEK |
- BTUSB_WIDEBAND_SPEECH },
/* Additional Realtek 8821AE Bluetooth devices */
{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
--
2.56.0
