Bluetooth: btmrvl_sdio: Implement prevent_wake

Use the parent device's power/wakeup to control whether we support
remote wake. If remote wakeup is disabled, Bluetooth will not enable
scanning for incoming connections.

Signed-off-by: Abhishek Pandit-Subedi <[e-mail]>
Reviewed-by: Douglas Anderson <[e-mail]>
Signed-off-by: Marcel Holtmann <[e-mail]>

drivers/bluetooth/btmrvl_main.c

···
 	return 0;
 }
 
+static bool btmrvl_prevent_wake(struct hci_dev *hdev)
+{
+	struct btmrvl_private *priv = hci_get_drvdata(hdev);
+	struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
+
+	return !device_may_wakeup(&card->func->dev);
+}
+
 /*
  * This function handles the event generated by firmware, rx data
  * received from firmware, and tx data sent from kernel.
···
 	hdev->send  = btmrvl_send_frame;
 	hdev->setup = btmrvl_setup;
 	hdev->set_bdaddr = btmrvl_set_bdaddr;
+	hdev->prevent_wake = btmrvl_prevent_wake;
 	SET_HCIDEV_DEV(hdev, &card->func->dev);
 
 	hdev->dev_type = priv->btmrvl_dev.dev_type;