[SRU][OEM-OSP1-B][PATCH 0/2] All PS/2 ports on PS/2 Serial add-in bracket are not working after S3
You-Sheng Yang
vicamo.yang at canonical.com
Mon Mar 16 09:27:45 UTC 2020
BugLink: https://bugs.launchpad.net/bugs/1866734
[Impact]
PS/2 ports on PS/2 Serial add-in card do not work after S3.
[Fix]
The i8042 controller selftest fails while resuming, adding retry fix
this issue.
[Test]
Verified on the target machine, the ps/2 keyboard keeps working after S3
test 30 times.
[Regression Potential]
Low, there is a retry logic in controller selftest, but it returns
directly if it fails to communicate with the controller. This commit
make it retry 5 times before return fails.
[Misc]
This revert a previous solution and add a rewritten one to preserve
fault tolerance as the original drive code does.
You-Sheng Yang (2):
Revert "UBUNTU: SAUCE: Input: i8042 - Fix the selftest retry logic"
Input: i8042 - fix the selftest retry logic
drivers/input/serio/i8042.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)
--
2.25.1
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