FROMGIT: BACKPORT: usb: ehci: add workaround for chipidea PORTSC.PEC bug

Some NXP processor using chipidea IP has a bug when frame babble is
detected.

As per 4.15.1.1.1 Serial Bus Babble:
  A babble condition also exists if IN transaction is in progress at
High-speed SOF2 point. This is called frame babble. The host controller
must disable the port to which the frame babble is detected.

The USB controller has disabled the port (PE cleared) and has asserted
USBERRINT when frame babble is detected, but PEC is not asserted.
Therefore, the SW isn't aware that port has been disabled. Then the
SW keeps sending packets to this port, but all of the transfers will
fail.

This workaround will firstly assert PCD by SW when USBERRINT is detected
and then judge whether port change has really occurred or not by polling
roothub status. Because the PEC doesn't get asserted in our case, this
patch will also assert it by SW when specific conditions are satisfied.

Bug: 295046582
Bug: 296794033
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20230809024432.535160-1-xu.yang_2@nxp.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit dda4b60e
    https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git

 usb-next)
[JD: replaced has_ci_pec_bug with existing has_fsl_port_bug to avoid abi breakage]
Change-Id: I7d36cf656efda2dd46c0ddcca252b3de6ea434ee
Signed-off-by: Jindong Yue <jindong.yue@nxp.com>