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linux/drivers/thunderbolt/tunnel.c
Gil Fine 69a7b98770 thunderbolt: Verify PCIe adapter in detect state before tunnel setup 
The USB4 Connection Manager guide suggests that a PCIe downstream and
PCIe upstream adapters of the USB4 router is in the Detect state before
setting up a PCIe tunnel.

Add this check by verifying the LTSSM field in ADP_PCIE_CS_0 before
tunnel setup.

Signed-off-by: Gil Fine <gil.fine@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2026-05-20 11:54:34 +02:00

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