From 7af3f558aca74f2ee47b173f1c27f6bb9a5b5561 Mon Sep 17 00:00:00 2001 From: Jian-Hong Pan Date: Tue, 25 Jun 2019 16:30:51 +0800 Subject: Bluetooth: btrtl: HCI reset on close for Realtek BT chip 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 Reviewed-by: Daniel Drake Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btrtl.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/bluetooth/btrtl.h') diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h index f1676144fce8..10ad40c3e42c 100644 --- a/drivers/bluetooth/btrtl.h +++ b/drivers/bluetooth/btrtl.h @@ -55,6 +55,7 @@ void btrtl_free(struct btrtl_device_info *btrtl_dev); int btrtl_download_firmware(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev); int btrtl_setup_realtek(struct hci_dev *hdev); +int btrtl_shutdown_realtek(struct hci_dev *hdev); int btrtl_get_uart_settings(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev, unsigned int *controller_baudrate, @@ -83,6 +84,11 @@ static inline int btrtl_setup_realtek(struct hci_dev *hdev) return -EOPNOTSUPP; } +static inline int btrtl_shutdown_realtek(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + static inline int btrtl_get_uart_settings(struct hci_dev *hdev, struct btrtl_device_info *btrtl_dev, unsigned int *controller_baudrate, -- cgit v1.2.3