diff options
| author | Abhishek Pandit-Subedi <abhishekpandit@chromium.org> | 2020-05-13 05:19:26 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2020-05-13 10:12:04 +0300 |
| commit | 81dafad53c67abe4f09b0b04131fe490e76e5602 (patch) | |
| tree | 9c5719ad16d518852ba5a318465280f73826d856 /net/bluetooth | |
| parent | 0d2c9825e46d45f8a520135c9c791b5c73a165ab (diff) | |
| download | linux-81dafad53c67abe4f09b0b04131fe490e76e5602.tar.xz | |
Bluetooth: Add hook for driver to prevent wake from suspend
Let drivers have a hook to disable configuring scanning during suspend.
Drivers should use the device_may_wakeup function call to determine
whether hci should be configured for wakeup.
For example, an implementation for btusb may look like the following:
bool btusb_prevent_wake(struct hci_dev *hdev)
{
struct btusb_data *data = hci_get_drvdata(hdev);
return !device_may_wakeup(&data->udev->dev);
}
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 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/hci_core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index de1f4e72ec06..dbe2d79f233f 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3350,8 +3350,10 @@ static int hci_suspend_notifier(struct notifier_block *nb, unsigned long action, */ ret = hci_change_suspend_state(hdev, BT_SUSPEND_DISCONNECT); - /* Only configure whitelist if disconnect succeeded */ - if (!ret) + /* Only configure whitelist if disconnect succeeded and wake + * isn't being prevented. + */ + if (!ret && !(hdev->prevent_wake && hdev->prevent_wake(hdev))) ret = hci_change_suspend_state(hdev, BT_SUSPEND_CONFIGURE_WAKE); } else if (action == PM_POST_SUSPEND) { |