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Badhri Jagan Sridharan aba8c65bb9 usb: typec: tcpm: Fix response to vsafe0V event 
commit 4270d2b484 upstream.

Do not transition to SNK_UNATTACHED state when receiving vsafe0v event
while in SNK_HARD_RESET_WAIT_VBUS. Ignore VBUS off events as well as
in some platforms VBUS off can be signalled more than once.

[143515.364753] Requesting mux state 1, usb-role 2, orientation 2
[143515.365520] pending state change SNK_HARD_RESET_SINK_OFF -> SNK_HARD_RESET_SINK_ON @ 650 ms [rev3 HARD_RESET]
[143515.632281] CC1: 0 -> 0, CC2: 3 -> 0 [state SNK_HARD_RESET_SINK_OFF, polarity 1, disconnected]
[143515.637214] VBUS on
[143515.664985] VBUS off
[143515.664992] state change SNK_HARD_RESET_SINK_OFF -> SNK_HARD_RESET_WAIT_VBUS [rev3 HARD_RESET]
[143515.665564] VBUS VSAFE0V
[143515.665566] state change SNK_HARD_RESET_WAIT_VBUS -> SNK_UNATTACHED [rev3 HARD_RESET]

Fixes: 28b43d3d74 ("usb: typec: tcpm: Introduce vsafe0v for vbus")
Cc: <stable@vger.kernel.org>
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20230712085722.1414743-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-08-16 18:32:21 +02:00
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README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.