From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Kai-Heng Feng <kai.heng.feng@canonical.com>,
Mathias Nyman <mathias.nyman@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"open list:USB XHCI DRIVER" <linux-usb@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v3] xhci: Prevent runtime suspend on Etron EJ168
Date: Tue, 29 Sep 2020 00:42:52 +0300 [thread overview]
Message-ID: <8d913b15-a7e4-5e35-a137-355d222ccf1f@linux.intel.com> (raw)
In-Reply-To: <14291E1B-6580-4C69-9EF8-3B30BC78B8D0@canonical.com>
On 28.9.2020 12.10, Kai-Heng Feng wrote:
>
>
>> On Jun 8, 2020, at 11:56, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
>>
>>
>>
>>> On May 5, 2020, at 01:16, Kai-Heng Feng <kai.heng.feng@canonical.com> wrote:
>>>
>>> Etron EJ168 USB 3.0 Host Controller stops working after S3, if it was
>>> runtime suspended previously:
>>> [ 370.080359] pci 0000:02:00.0: can't change power state from D3cold to D0 (config space inaccessible)
>>> [ 370.080477] xhci_hcd 0000:04:00.0: can't change power state from D3cold to D0 (config space inaccessible)
>>> [ 370.080532] pcieport 0000:00:1c.0: DPC: containment event, status:0x1f05 source:0x0200
>>> [ 370.080533] pcieport 0000:00:1c.0: DPC: ERR_FATAL detected
>>> [ 370.080536] xhci_hcd 0000:04:00.0: can't change power state from D3hot to D0 (config space inaccessible)
>>> [ 370.080552] xhci_hcd 0000:04:00.0: AER: can't recover (no error_detected callback)
>>> [ 370.080566] usb usb3: root hub lost power or was reset
>>> [ 370.080566] usb usb4: root hub lost power or was reset
>>> [ 370.080572] xhci_hcd 0000:04:00.0: Host halt failed, -19
>>> [ 370.080574] xhci_hcd 0000:04:00.0: Host not accessible, reset failed.
>>> [ 370.080575] xhci_hcd 0000:04:00.0: PCI post-resume error -19!
>>> [ 370.080586] xhci_hcd 0000:04:00.0: HC died; cleaning up
>>>
>>> This can be fixed by not runtime suspend the controller at all.
>>>
>>> So disable runtime suspend for EJ168 xHCI device.
>>>
>>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
>>
>> A gentle ping...
>
> Another gentle ping...
Thanks, somehow I didn't notice this earlier.
Was the rootcause ever investigated?
Preventing runtime suspend looks like a quick fix to get rid of the issue, but
possibly just hides some other underlying power management problem
-Mathias
next prev parent reply other threads:[~2020-09-28 21:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-04 17:16 [PATCH v3] xhci: Prevent runtime suspend on Etron EJ168 Kai-Heng Feng
2020-06-08 3:56 ` Kai-Heng Feng
2020-09-28 9:10 ` Kai-Heng Feng
2020-09-28 21:42 ` Mathias Nyman [this message]
2020-09-29 7:39 ` Kai-Heng Feng
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