Re: [PATCH 1/2] thunderbolt: Scan retimers after device router has been enumerated

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On Wed, Mar 12, 2025 at 11:26:02AM +0200, Mika Westerberg wrote:
> Thomas reported connection issues on AMD system with Pluggable UD-4VPD
> dock. After some experiments it looks like the device has some sort of
> internal timeout that triggers reconnect. This is completely against the
> USB4 spec, as there is no requirement for the host to enumerate the
> device right away or even at all.
> 
> In Linux case the delay is caused by scanning of retimers on the link so
> we can work this around by doing the scanning after the device router
> has been enumerated.
> 
> Reported-by: Thomas Lynema <lyz27@xxxxxxxxx>
> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219748
> Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

Both patches applied to thunderbolt.git/next.




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