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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2019-08-30 05:56:14 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-08-30 08:27:33 +0200 |
| commit | 18a93cd38be3e69ac5b067c570a78a369b79e31d (patch) | |
| tree | a1f6264e618b6fcb15b97074733b9e5fc8e18148 /drivers/target | |
| parent | usb: gadget: net2280: Move all "ll" registers in one structure (diff) | |
| download | linux-18a93cd38be3e69ac5b067c570a78a369b79e31d.tar.xz linux-18a93cd38be3e69ac5b067c570a78a369b79e31d.zip | |
usb: gadget: net2280: Add workaround for AB chip Errata 11
The errata description is:
Workaround for Default Duration of LFPS Handshake Signaling for
Device-Initiated U1 Exit is too short.
The default duration of the LFPS handshake generated by USB3380 for a device-initiated U1-exit may not be
long enough for certain SuperSpeed downstream ports (SuperSpeed hubs/hosts) to recognize. This could lead
to USB3380 entering the recovery state pre-maturely and ending up in the SS.Inactive state.
I have observed various enumeration failures, seemingly related to
lost transactions or SETUP status phases on modern hosts (typically
thunderbolt capable systems) without this workaround.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/target')
0 files changed, 0 insertions, 0 deletions