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.
