• Andreas Noever's avatar
    thunderbolt: Fix nontrivial endpoint devices. · 343fcb8c
    Andreas Noever authored
    Fix issues observed with the Startech docking station:
    
    Fix the type of the route parameter in tb_ctl_rx. It should be u64 and not
    u8 (which only worked for short routes).
    
    A thunderbolt cable contains two lanes. If both endpoints support it a
    connection will be established on both lanes. Previously we tried to
    scan below both "dual link ports". Use the information extracted from
    the drom to only scan behind ports with lane_nr == 0.
    
    Endpoints with more complex thunderbolt controllers have some of their
    ports disabled (for example the NHI port or one of the HDMI/DP ports).
    Accessing them results in an error so we now ignore ports which are
    marked as disabled in the drom.
    Signed-off-by: default avatarAndreas Noever <andreas.noever@gmail.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    343fcb8c
ctl.c 17.9 KB