[PATCH 0/1][SRU][OEM-B-OSP1][F][OEM-5.6][G] Thunderbolt3 daisy chain sometimes doesn't work

AceLan Kao acelan.kao at canonical.com
Tue Sep 15 03:32:19 UTC 2020

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

Plug-in thunderbolt external monitor, and then plug-in thunderbolt
external Hard drive on the external monitor, it sometimes can't detect
the TBT storage.

Retry tb_drom_read_n() when failed fixes this issue.

Verified on Dell platform with ASUS PA27AC Thunderbolt 3, and HP P800 TBT

[Regression Potential]
Low, it only add 100ms delay and retry once.

Mika Westerberg (1):
  thunderbolt: Retry DROM read once if parsing fails

 drivers/thunderbolt/eeprom.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)


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