diff mbox series

[v4,2/4] Bluetooth: btusb: add callback function in btusb suspend/resume

Message ID 20240606114321.30515-3-chris.lu@mediatek.com
State Superseded
Headers show
Series Bluetooth: btusb: MediaTek ISO data transmission | expand

Commit Message

Chris Lu June 6, 2024, 11:43 a.m. UTC 
Add new function: dev_suspend/dev_resume in btusb_data which are reserved
for vendor specific usage during suspend/resume. dev_suspend will be
added before stop traffic in btusb_suspend and dev_resume will be
added after resubmit urb in btusb_resuem.

Signed-off-by: Chris Lu <chris.lu@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/bluetooth/btusb.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox series

Patch

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 79aefdb3324d..83765c0c14b4 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -891,6 +891,9 @@  struct btusb_data {
 
 	int (*setup_on_usb)(struct hci_dev *hdev);
 
+	int (*dev_suspend)(struct hci_dev *hdev);
+	int (*dev_resume)(struct hci_dev *hdev);
+
 	int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 	unsigned cmd_timeout_cnt;
 
@@ -4715,6 +4718,9 @@  static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
 
 	cancel_work_sync(&data->work);
 
+	if (data->dev_suspend)
+		data->dev_suspend(data->hdev);
+
 	btusb_stop_traffic(data);
 	usb_kill_anchored_urbs(&data->tx_anchor);
 
@@ -4818,6 +4824,9 @@  static int btusb_resume(struct usb_interface *intf)
 			btusb_submit_isoc_urb(hdev, GFP_NOIO);
 	}
 
+	if (data->dev_resume)
+		data->dev_resume(hdev);
+
 	spin_lock_irq(&data->txlock);
 	play_deferred(data);
 	clear_bit(BTUSB_SUSPENDING, &data->flags);