From ceceefb07627482cfb3590b7d03d7bdffb0c1fa8 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@mediatek.com>
Date: Mon, 23 Sep 2024 16:47:03 +0800
Subject: [PATCH] Bluetooth: btusb: mediatek: add callback function in
 btusb_disconnect

BugLink: https://bugs.launchpad.net/bugs/2106632

[ Upstream commit cea1805f165cdd783dd21f26df957118cb8641b4 ]

Add disconnect callback function in btusb_disconnect which is reserved
for vendor specific usage before deregister hci in btusb_disconnect.

Signed-off-by: Chris Lu <chris.lu@mediatek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Mehmet Basaran <mehmet.basaran@canonical.com>
---
 drivers/bluetooth/btusb.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 59da4be2f28f..77ae10ee3a9e 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -922,6 +922,7 @@ struct btusb_data {
 
 	int (*suspend)(struct hci_dev *hdev);
 	int (*resume)(struct hci_dev *hdev);
+	int (*disconnect)(struct hci_dev *hdev);
 
 	int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 	unsigned cmd_timeout_cnt;
@@ -4713,6 +4714,9 @@ static void btusb_disconnect(struct usb_interface *intf)
 	if (data->diag)
 		usb_set_intfdata(data->diag, NULL);
 
+	if (data->disconnect)
+		data->disconnect(hdev);
+
 	hci_unregister_dev(hdev);
 
 	if (intf == data->intf) {