Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"
authorKai-Heng Feng <kai.heng.feng@canonical.com>
Wed, 20 Dec 2017 11:00:07 +0000 (19:00 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 17 Feb 2018 12:21:19 +0000 (13:21 +0100)
commit84bf682f53422a08086dd3f1b0db1dbda46fead3
treedc65440230585fa5a49a491f6c2a2577c743eaac
parent6913d1b190b99855b740f648ea70cede43e52eff
Revert "Bluetooth: btusb: fix QCA Rome suspend/resume"

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