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From:   Christian Hewitt <christianshewitt@gmail.com>
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Subject: Regression in 5.18.3 from "xhci: Set HCD flag to defer primary
 roothub registration"
Message-Id: <743F7369-2794-4189-8891-5DA62E4B62DA@gmail.com>
Date:   Sat, 11 Jun 2022 10:49:23 +0400
To:     Kishon Vijay Abraham I <kishon@ti.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Mathias Nyman <mathias.nyman@linux.intel.com>,
        Chris Chiu <chris.chiu@canonical.com>,
        linux-usb@vger.kernel.org, linux-amlogic@lists.infradead.org,
        stable@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
        Neil Armstrong <narmstrong@baylibre.com>
Precedence: bulk

Commit 6c64a664e1cff339ec698d803fa8cbb9af5d95ce =E2=80=9Cxhci: Set HCD =
flag to defer
primary roothub registration=E2=80=9D added for Linux 5.18.3 caused a =
regression on
some Amlogic S912 devices (original user forum report with an Android TV =
box
and confirmed with a Khadas VIM2 board). I do not see issues with older =
S905
(WeTeK Play2) or newer S922X (Odroid N2+) devices running the same =
kernel.
There are no kernel splats or error messages but lsusb shows no output =
and
nothing works. Simple revert restores the previous good working =
behaviour.

dmesg with commit http://ix.io/3ZTv
dmesg with revert http://ix.io/3ZTw

I=E2=80=99m not a coder so will need to be fed instructions to assist =
with debugging
the issue further if you don't have access to an Amlogic S912 device. I =
can
share devices online for remote poking around if needed.

Christian=