Re: [PATCH] xhci: Remove CONFIG_USB_DEFAULT_PERSIST to prevent xHCI from runtime suspending

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

-Mathias



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux