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During disconnect USB-3 ports often go via SS.Inactive link error state before the missing terminations are noticed, and link finally goes to RxDetect state Avoid immediately warm-resetting ports in SS.Inactive state. Let ports settle for a while and re-read the link status a few times 20ms apart to see if the ports transitions out of SS.Inactive. According to USB 3.x spec 7.5.2, a port in SS.Inactive should automatically check for missing far-end receiver termination every 12 ms (SSInactiveQuietTimeout) The futile multiple warm reset retries of a disconnected device takes a lot of time, also the resetting of a removed devices has caused cases where the reset bit got stuck for a long time on xHCI roothub. This lead to issues in detecting new devices connected to the same port shortly after. Tested-by: Mark Pearson <markpearson@lenovo.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20211210111653.1378381-1-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| atm | ||
| c67x00 | ||
| cdns3 | ||
| chipidea | ||
| class | ||
| common | ||
| core | ||
| dwc2 | ||
| dwc3 | ||
| early | ||
| gadget | ||
| host | ||
| image | ||
| isp1760 | ||
| misc | ||
| mon | ||
| mtu3 | ||
| musb | ||
| phy | ||
| renesas_usbhs | ||
| roles | ||
| serial | ||
| storage | ||
| typec | ||
| usbip | ||
| Kconfig | ||
| Makefile | ||
| usb-skeleton.c | ||