diff options
| author | Tim Jiang <tjiang@codeaurora.org> | 2020-12-18 18:12:11 +0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2020-12-18 22:29:42 +0100 |
| commit | 3b0d5250be30e76727284bb9e4c26b662ede7378 (patch) | |
| tree | 3766c58689ddf7a299aafe12640856c11cacad85 /drivers/bluetooth | |
| parent | 295fa2a5647b13681594bb1bcc76c74619035218 (diff) | |
| download | linux-3b0d5250be30e76727284bb9e4c26b662ede7378.tar.bz2 | |
Bluetooth: btusb: add shutdown function for wcn6855
we should send hci reset command before bt turn off, which can reset bt
firmware status.
Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 1b690164ab5b..4670a372bc3d 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -4260,6 +4260,20 @@ static bool btusb_prevent_wake(struct hci_dev *hdev) return !device_may_wakeup(&data->udev->dev); } +static int btusb_shutdown_qca(struct hci_dev *hdev) +{ + struct sk_buff *skb; + + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "HCI reset during shutdown failed"); + return PTR_ERR(skb); + } + kfree_skb(skb); + + return 0; +} + static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { @@ -4519,6 +4533,7 @@ static int btusb_probe(struct usb_interface *intf, if (id->driver_info & BTUSB_QCA_WCN6855) { data->setup_on_usb = btusb_setup_qca; + hdev->shutdown = btusb_shutdown_qca; hdev->set_bdaddr = btusb_set_bdaddr_wcn6855; hdev->cmd_timeout = btusb_qca_cmd_timeout; set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); |