Hi Jian-Hong, > Realtek RTL8822BE BT chip on ASUS X420FA cannot be turned on correctly > after on-off several times. Bluetooth daemon sets BT mode failed when > this issue happens. Scanning must be active while turning off for this > bug to be hit. > > bluetoothd[1576]: Failed to set mode: Failed (0x03) > > If BT is turned off, then turned on again, it works correctly again. > > According to the vendor driver, the HCI_QUIRK_RESET_ON_CLOSE flag is set > during probing. So, this patch makes Realtek's BT reset on close to fix > this issue. > > Link: https://bugzilla.kernel.org/show_bug.cgi?id=203429 > Signed-off-by: Jian-Hong Pan <jian-hong@xxxxxxxxxxxx> > --- > v2: > - According to the vendor driver, it makes "all" Realtek's BT reset on > close. So, this version makes it the same. > - Change to the new subject for all Realtek BT chips. > > v3: > - Fix the commit message and add the bug link. > - Have btrtl_shutdown_realtek() which sends HCI reset command and as > the callback function of hdev->shutdown for Realtek BT instead of > setting HCI_QUIRK_RESET_ON_CLOSE flag. > > drivers/bluetooth/btrtl.c | 20 ++++++++++++++++++++ > drivers/bluetooth/btrtl.h | 6 ++++++ > drivers/bluetooth/btusb.c | 1 + > 3 files changed, 27 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel
