lkml.org 
[lkml]   [2018]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v2] xhci: Fix front USB ports on ASUS PRIME B350M-A
From
Date
Hi

On 19.02.2018 21:06, Kai-Heng Feng wrote:
> When a USB device gets plugged on ASUS PRIME B350M-A's front ports, the
> xHC stops working:
> [ 549.114587] xhci_hcd 0000:02:00.0: WARN: xHC CMD_RUN timeout
> [ 549.114608] suspend_common(): xhci_pci_suspend+0x0/0xc0 returns -110
> [ 549.114638] xhci_hcd 0000:02:00.0: can't suspend (hcd_pci_runtime_suspend returned -110)

Is the xhci runtime suspend something that you expected here?
I mean was the plugged device first enumerated normally, driver bound, inactive and runtime suspended
first?

>
> Delay before running xHC command CMD_RUN can workaround the issue.
>
> Use a new quirk to make the delay only targets to the affected xHC.

Is this some known issue with this chip, or something figured out by trial and error?

>
> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>

Thanks, otherwise workaround seems fine, just curious about the two details above

-Mathias


\
 
 \ /
  Last update: 2018-02-20 09:21    [W:0.081 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site