APPLIED(F): [SRU v2] [F/Unstable/OEM-OSP1-B/OEM-5.6] [PATCH 0/2] Fix Pericom USB controller OHCI/EHCI PME# defect

[Khaled Elmously]

On 2020-05-21 13:29:49 , Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1879321
> 
> [Impact]
> Pericom EHCI/OHCI USB Controller can't detect hotplug event when it's
> runtime-suspended, due to its unreliable PME#.
> 
> [Fix]
> Disable PME for all its power state since all of them don't work
> reliably.
> 
> [Test]
> Hotplugging event can be reliably detected by the device, after the fix
> gets applied.
> 
> [Regression Potential]
> Low. This targets specific device, without touching any logic.
> 
> Kai-Heng Feng (2):
>   serial: 8250_pci: Move Pericom IDs to pci_ids.h
>   PCI: Avoid Pericom USB controller OHCI/EHCI PME# defect
> 
>  drivers/pci/quirks.c               | 14 ++++++++++----
>  drivers/tty/serial/8250/8250_pci.c |  6 ------
>  include/linux/pci_ids.h            |  6 ++++++
>  3 files changed, 16 insertions(+), 10 deletions(-)
> 
> -- 
> 2.17.1
> 
> 
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