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>

0 files changed, 0 insertions, 0 deletions