diff options
| -rw-r--r-- | drivers/bluetooth/btusb.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index fa683bb7f0b4..9bfa55cb7acf 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2808,6 +2808,19 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) btusb_stop_traffic(data); usb_kill_anchored_urbs(&data->tx_anchor); + /* Toggle the hard reset line. The MediaTek device is going to + * yank itself off the USB and then replug. The cleanup is handled + * correctly on the way out (standard USB disconnect), and the new + * device is detected cleanly and bound to the driver again like + * it should be. + */ + if (data->reset_gpio) { + gpiod_set_value_cansleep(data->reset_gpio, 1); + msleep(200); + gpiod_set_value_cansleep(data->reset_gpio, 0); + return 0; + } + err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id); usb_queue_reset_device(data->intf); |