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authorAbhishek Pandit-Subedi <abhishekpandit@chromium.org>2020-05-13 05:19:27 +0300
committerMarcel Holtmann <marcel@holtmann.org>2020-05-13 10:12:04 +0300
commitb7d0bf11a7ad0e97721a5c4a209ba749649f8b9e (patch)
treec37511127a594e3864dc00fe519048d4b1285663 /drivers/bluetooth/btusb.c
parent81dafad53c67abe4f09b0b04131fe490e76e5602 (diff)
downloadlinux-b7d0bf11a7ad0e97721a5c4a209ba749649f8b9e.tar.xz
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>
Diffstat (limited to 'drivers/bluetooth/btusb.c')
-rw-r--r--drivers/bluetooth/btusb.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 8ae3ad7a6013..c17359c0e320 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -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);