[PATCH v2 0/1][SRU][F][OEM-B-OSP1] Thunderbolt3 daisy chain sometimes doesn't work Edit

AceLan Kao acelan.kao at canonical.com
Fri Sep 18 05:56:20 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

Retry tb_drom_read_n() when failed fixes this issue.

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

[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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