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SubjectRe: [PATCH 0/2] Fix some hotplug event issues
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On 9/21/2022 10:45, Greg KH wrote:
> On Wed, Sep 21, 2022 at 09:54:31AM -0500, Mario Limonciello wrote:
>> On AMD Pink Sardine it's been observed that if another CM has run before
>> the Linux CM that some registers may not match expectations which leads
>> to a non-functional hotplug for PCIe devices.
>>
>> Explicitly set these registers that have been observed to cause problems
>> with hotplug to the defaults of the USB4 spec.
>>
>> Mario Limonciello (2):
>> thunderbolt: Explicitly reset plug events delay back to USB4 spec
>> value
>> thunderbolt: Explicitly enable lane adapter hotplug events at startup
>>
>> drivers/thunderbolt/switch.c | 5 +++++
>> drivers/thunderbolt/tb.h | 1 +
>> drivers/thunderbolt/tb_regs.h | 1 +
>> drivers/thunderbolt/usb4.c | 19 +++++++++++++++++++
>> 4 files changed, 26 insertions(+)
>
> Any specific reason these were not tagged for stable backports?
>
> thanks,
>
> greg k-h


No; no particular reason. If Mika agrees with them, I think they are
good candidates to include for stable too. If I respin them, I'll tag
accordingly. If Mika picks them up as v1 I think he can add the tag
when committing them.

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