Hi Hans,
> Commit 7d06d5895c15 ("Revert "Bluetooth: btusb: fix QCA...suspend/resume"")
> removed the setting of the BTUSB_RESET_RESUME quirk for QCA Rome devices,
> instead favoring adding USB_QUIRK_RESET_RESUME quirks in usb/core/quirks.c.
>
> This was done because the DIY BTUSB_RESET_RESUME reset-resume handling
> has several issues (see the original commit message). An added advantage
> of moving over to the USB-core reset-resume handling is that it also
> disables autosuspend for these devices, which is similarly broken on these.
>
> But there are 2 issues with this approach:
> 1) It leaves the broken DIY BTUSB_RESET_RESUME code in place for Realtek
> devices.
> 2) Sofar only 2 of the 10 QCA devices known to the btusb code have been
> added to usb/core/quirks.c and if we fix the Realtek case the same way
> we need to add an additional 14 entries. So in essence we need to
> duplicate a large part of the usb_device_id table in btusb.c in
> usb/core/quirks.c and manually keep them in sync.
>
> This commit instead restores setting a reset-resume quirk for QCA devices
> in the btusb.c code, avoiding the duplicate usb_device_id table problem.
>
> This commit avoids the problems with the original DIY BTUSB_RESET_RESUME
> code by simply setting the USB_QUIRK_RESET_RESUME quirk directly on the
> usb_device.
>
> This commit also moves the BTUSB_REALTEK case over to directly setting the
> USB_QUIRK_RESET_RESUME on the usb_device and removes the now unused
> BTUSB_RESET_RESUME code.
>
> BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1514836
> Fixes: 7d06d5895c15 ("Revert "Bluetooth: btusb: fix QCA...suspend/resume"")
> Cc: stable@xxxxxxxxxxxxxxx
> Cc: Leif Liddy <leif.linux@xxxxxxxxx>
> Cc: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> Cc: Brian Norris <briannorris@xxxxxxxxxxxx>
> Cc: Daniel Drake <drake@xxxxxxxxxxxx>
> Cc: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
> ---
> Note:
> 1) Once this has been merged, the 2 commits adding QCA device entries to
> drivers/usb/core/quirks.c should be reverted or dropped from bluetooth-next.
> 2) I don't have any of the affected devices, please test
> ---
> drivers/bluetooth/btusb.c | 22 ++++++++++------------
> 1 file changed, 10 insertions(+), 12 deletions(-)
patch has been applied to bluetooth-next tree.
Regards
Marcel
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