This is the second iteration of the xhci patch set
for making USB keyboards usable on the rpi4 board.

Patch 1 is new to deal with the USB device not
responding immediately after a port reset.

Patch 3 is refactored after the review from Bin Meng.

----------------------------------------------------------------
Jason Wessel (4):
      xhci.c: Add retry in xhci_address_device()
      xhci.c: Add polling support for USB keyboards
      xhci-ring.c: Add poll pending state to properly abort transactions
      xhci-ring.c: Fix crash when issuing "usb reset"

 drivers/usb/host/xhci-ring.c | 115 +++++++++++++++++++++++++++++++++----------
 drivers/usb/host/xhci.c      |  20 ++++++--
 include/usb/xhci.h           |  10 +++-
 3 files changed, 111 insertions(+), 34 deletions(-)

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