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SubjectRe: [PATCH 0/2] Fix some hotplug event issues
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

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