Patch "Bluetooth: btusb: fix QCA Rome suspend/resume" has been added to the 4.13-stable tree

This is a note to let you know that I've just added the patch titled

Bluetooth: btusb: fix QCA Rome suspend/resume

to the 4.13-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
bluetooth-btusb-fix-qca-rome-suspend-resume.patch
and it can be found in the queue-4.13 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Leif Liddy <[email protected]>
Date: Sat, 8 Jul 2017 20:55:32 +0200
Subject: Bluetooth: btusb: fix QCA Rome suspend/resume

From: Leif Liddy <[email protected]>

commit fd865802c66bc451dc515ed89360f84376ce1a56 upstream.

There's been numerous reported instances where BTUSB_QCA_ROME bluetooth controllers stop functioning upon resume from suspend. These devices seem to be losing power during suspend. Patch will detect a status change on resume and perform a reset.

---
 drivers/bluetooth/btusb.c |    6 ++++++
 1 file changed, 6 insertions(+)

@@ -3068,6 +3068,12 @@ static int btusb_probe(struct usb_interf
 	if (id->driver_info & BTUSB_QCA_ROME) {
 		data->setup_on_usb = btusb_setup_qca;
 		hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
+
+		/* QCA Rome devices lose their updated firmware over suspend,
+		 * but the USB hub doesn't notice any status change.
+		 * Explicitly request a device reset on resume.
+		 */
+		set_bit(BTUSB_RESET_RESUME, &data->flags);
 	}
 
 #ifdef CONFIG_BT_HCIBTUSB_RTL

Patches currently in stable-queue which might be from [email protected] are

queue-4.13/bluetooth-btusb-fix-qca-rome-suspend-resume.patch