APPLIED: [SRU] [B/C] [PATCH 0/1] Fix Terminus USB hub that may breaks connected USB devices after S3
khalid.elmously at canonical.com
Sat Dec 29 03:40:38 UTC 2018
On 2018-12-05 17:41:14 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1806850
> USB devices connected to Terminus USB hub stop working after S3.
> The Terminus hub seems to have a rather slow reset command, so we need
> to wait for extra time before doing any further action.
> After applying the fix, USB devices connected to the HUB no longer stop
> functioning after S3.
> [Regression Potential]
> Low. Although the fix affects all devices connect to the HUB, it has no
> functional change other than imposes longer delay time.
> Kai-Heng Feng (1):
> USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky
> Documentation/admin-guide/kernel-parameters.txt | 2 ++
> drivers/usb/core/hub.c | 14 +++++++++++---
> drivers/usb/core/quirks.c | 6 ++++++
> include/linux/usb/quirks.h | 3 +++
> 4 files changed, 22 insertions(+), 3 deletions(-)
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