On 9.12.2021 8.42, Kai-Heng Feng wrote: > On Wed, Dec 1, 2021 at 5:00 PM Mathias Nyman > <mathias.nyman@xxxxxxxxxxxxxxx> wrote: >> >> On 1.12.2021 2.19, Kai-Heng Feng wrote: >>> On Fri, Nov 19, 2021 at 5:27 PM Kai-Heng Feng >>> <kai.heng.feng@xxxxxxxxxxxxx> wrote: >>>> >>>> When the xHCI is quirked with XHCI_RESET_ON_RESUME, runtime resume >>>> routine also resets the controller. >>>> >>>> This is bad for USB drivers without reset_resume callback, because >>>> there's no subsequent call of usb_dev_complete() -> >>>> usb_resume_complete() to force rebinding the driver to the device. For >>>> instance, btusb device stops working after xHCI controller is runtime >>>> resumed, if the controlled is quirked with XHCI_RESET_ON_RESUME. >>>> >>>> So always take XHCI_RESET_ON_RESUME into account to solve the issue. >>>> >>>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> >>> >>> A gentle ping... >> >> Thanks >> Adding to queue > > I haven't found this patch in your repo. Can you please push it so I > can backport it to downstream kernel? Patch got shuffled around a bit. It's now in my for-usb-linus branch, and sent to Greg Thanks -Mathias
