diff options
| author | Abhishek Pandit-Subedi <abhishekpandit@chromium.org> | 2020-06-24 21:11:44 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2020-06-24 21:23:31 +0300 |
| commit | 6933568aec92dd6432207baaf59378d01f55a14f (patch) | |
| tree | 99d0f055da3af339116e65fc6ffbb21af4159a57 /drivers/bluetooth | |
| parent | 737cd06072a72e8984e41af8e5919338d0c5bf2b (diff) | |
| download | linux-6933568aec92dd6432207baaf59378d01f55a14f.tar.xz | |
Bluetooth: btusb: Reset port on cmd timeout
QCA_ROME sometimes gets into a state where it is unresponsive to
commands. Since it doesn't have support for a reset gpio, reset the usb
port when this occurs instead.
Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index e42fdd625eb0..df46b2a34c18 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -573,6 +573,22 @@ static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) gpiod_set_value_cansleep(reset_gpio, 0); } +static void btusb_qca_cmd_timeout(struct hci_dev *hdev) +{ + struct btusb_data *data = hci_get_drvdata(hdev); + int err; + + if (++data->cmd_timeout_cnt < 5) + return; + + bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device."); + err = usb_autopm_get_interface(data->intf); + if (!err) + usb_queue_reset_device(data->intf); + else + bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err); +} + static inline void btusb_free_frags(struct btusb_data *data) { unsigned long flags; @@ -3964,6 +3980,7 @@ static int btusb_probe(struct usb_interface *intf, if (id->driver_info & BTUSB_QCA_ROME) { data->setup_on_usb = btusb_setup_qca; hdev->set_bdaddr = btusb_set_bdaddr_ath3012; + hdev->cmd_timeout = btusb_qca_cmd_timeout; set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); btusb_check_needs_reset_resume(intf); } |