commit f022ff7bf377ca94367be05de61277934d42ea74
Author: Mika Westerberg <mika.westerb...@linux.intel.com>
Date:   Mon Sep 7 12:20:36 2020 +0300

    thunderbolt: Retry DROM read once if parsing fails
    
    Kai-Heng reported that sometimes DROM parsing of ASUS PA27AC Thunderbolt 3
    monitor fails. This makes the driver to fail to add the device so only
    DisplayPort tunneling is functional.
    
    It is not clear what exactly happens but waiting for 100 ms and retrying
    the read seems to work this around so we do that here.
    
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=206493
    Reported-by: Kai-Heng Feng <kai.heng.f...@canonical.com>
    Tested-by: Kai-Heng Feng <kai.heng.f...@canonical.com>
    Cc: sta...@vger.kernel.org
    Signed-off-by: Mika Westerberg <mika.westerb...@linux.intel.com>


** Tags added: oem-priority originate-from-1855796 somerville

** Tags added: originate-from-1851798

** Bug watch added: Linux Kernel Bug Tracker #206493
   https://bugzilla.kernel.org/show_bug.cgi?id=206493

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https://bugs.launchpad.net/bugs/1895606

Title:
  Thunderbolt3 daisy chain sometimes doesn't work

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