Commit 3b0d5250 authored by Tim Jiang's avatar Tim Jiang Committed by Marcel Holtmann
Browse files

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: default avatarTim Jiang <tjiang@codeaurora.org>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 295fa2a5

drivers/bluetooth/btusb.c

+15 −0
Original line number Diff line number Diff line
@@ -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);