APPLIED [OEM-5.13] Re: [SRU][I/J/OEM-5.13/OEM-5.14][PATCH 0/1] Fix pci port lost when hotplug dock

[Timo Aaltonen]

On 19.1.2022 20.53, Timo Aaltonen wrote:
> On 13.12.2021 13.52, Aaron Ma wrote:
>> BugLink: https://bugs.launchpad.net/bugs/1954646
>>
>> [Impact]
>> On Intel Maple Ridge, when hotplug TBT4 dock, PCIe bus show error
>> "severity=Uncorrected (Non-Fatal)",
>> and failed to probe.
>>
>> [Fix]
>> Re-enable PCIe port LTR after reset or hotplug, and probe it properly.
>>
>> [Test]
>> Verified on HW with TBT4 dock. it works fine.
>> Also tested Tiger Lake-LP Thunderbolt 4, tbt4 dock works fine.
>> Tested on AMD Cezanne, PCIe works fine, it doesn't support thunderbolt.
>>
>> [Where problems could occur]
>> PCI bus may break.
>>
>> Mingchuang Qiao (1):
>>    PCI: Re-enable Downstream Port LTR after reset or hotplug
>>
>>   drivers/pci/pci.c   | 25 +++++++++++++++++++++++++
>>   drivers/pci/pci.h   |  1 +
>>   drivers/pci/probe.c | 18 +++++++++++++++---
>>   3 files changed, 41 insertions(+), 3 deletions(-)
>>
> 
> applied to oem-5.13 via rebase to impish, thanks

heh, replied to the wrong thread, this was fixed earlier


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