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Bluetooth: btusb: Implement hdev->prevent_wake 

Implement the prevent_wake hook by checking device_may_wakeup on the usb
interface. This prevents the Bluetooth core from enabling scanning when
the device isn't expected to wake from suspend.

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Reviewed-by: Alain Michaud <alainm@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Abhishek Pandit-Subedi 2020-05-12 19:19:27 -07:00 committed by Marcel Holtmann
parent 81dafad53c
commit b7d0bf11a7
1 changed files with 8 additions and 0 deletions
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8
drivers/bluetooth/btusb.c
View File

@ -3698,6 +3698,13 @@ static void btusb_check_needs_reset_resume(struct usb_interface *intf)
interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
}
static bool btusb_prevent_wake(struct hci_dev *hdev)
{
struct btusb_data *data = hci_get_drvdata(hdev);
return !device_may_wakeup(&data->udev->dev);
}
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@ -3831,6 +3838,7 @@ static int btusb_probe(struct usb_interface *intf,
hdev->flush = btusb_flush;
hdev->send = btusb_send_frame;
hdev->notify = btusb_notify;
hdev->prevent_wake = btusb_prevent_wake;
#ifdef CONFIG_PM
err = btusb_config_oob_wake(hdev);