* Patch "Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"" has been added to the 4.15-stable tree
@ 2018-02-15 8:34 gregkh
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From: gregkh @ 2018-02-15 8:34 UTC (permalink / raw)
To: kai.heng.feng, briannorris, drake, gregkh, leif.linux, marcel, mka
Cc: stable, stable-commits
This is a note to let you know that I've just added the patch titled
Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"
to the 4.15-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:
revert-bluetooth-btusb-fix-qca-rome-suspend-resume.patch
and it can be found in the queue-4.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From 7d06d5895c159f64c46560dc258e553ad8670fe0 Mon Sep 17 00:00:00 2001
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
Date: Wed, 20 Dec 2017 19:00:07 +0800
Subject: Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"
From: Kai-Heng Feng <kai.heng.feng@canonical.com>
commit 7d06d5895c159f64c46560dc258e553ad8670fe0 upstream.
This reverts commit fd865802c66bc451dc515ed89360f84376ce1a56.
This commit causes a regression on some QCA ROME chips. The USB device
reset happens in btusb_open(), hence firmware loading gets interrupted.
Furthermore, this commit stops working after commit
("a0085f2510e8976614ad8f766b209448b385492f Bluetooth: btusb: driver to
enable the usb-wakeup feature"). Reset-resume quirk only gets enabled in
btusb_suspend() when it's not a wakeup source.
If we really want to reset the USB device, we need to do it before
btusb_open(). Let's handle it in drivers/usb/core/quirks.c.
Cc: Leif Liddy <leif.linux@gmail.com>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: Brian Norris <briannorris@chromium.org>
Cc: Daniel Drake <drake@endlessm.com>
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/bluetooth/btusb.c | 6 ------
1 file changed, 6 deletions(-)
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3117,12 +3117,6 @@ 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 kai.heng.feng@canonical.com are
queue-4.15/revert-bluetooth-btusb-fix-qca-rome-suspend-resume.patch
queue-4.15/bluetooth-btusb-restore-qca-rome-suspend-resume-fix-with-a-rewritten-version.patch
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2018-02-15 8:34 Patch "Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"" has been added to the 4.15-stable tree gregkh
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