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
