diff options
| author | Stanislaw Gruszka <[email protected]> | 2021-03-11 13:53:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-03-11 13:03:06 +0100 |
| commit | a4a251f8c23518899d2078c320cf9ce2fa459c9f (patch) | |
| tree | e181ca3114067946451b15f2998d824dd820e1be /lib/mpi/mpiutil.c | |
| parent | a949b9eab039eb668ff2a15fdec04dfae8ec82ec (diff) | |
usb: xhci: do not perform Soft Retry for some xHCI hosts
On some systems rt2800usb and mt7601u devices are unable to operate since
commit f8f80be501aa ("xhci: Use soft retry to recover faster from
transaction errors")
Seems that some xHCI controllers can not perform Soft Retry correctly,
affecting those devices.
To avoid the problem add xhci->quirks flag that restore pre soft retry
xhci behaviour for affected xHCI controllers. Currently those are
AMD_PROMONTORYA_4 and AMD_PROMONTORYA_2, since it was confirmed
by the users: on those xHCI hosts issue happen and is gone after
disabling Soft Retry.
[minor commit message rewording for checkpatch -Mathias]
Fixes: f8f80be501aa ("xhci: Use soft retry to recover faster from transaction errors")
Cc: <[email protected]> # 4.20+
Reported-by: Bernhard <[email protected]>
Tested-by: Bernhard <[email protected]>
Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Mathias Nyman <[email protected]>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=202541
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions