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Kyle Tso
063933f47a
usb: typec: tcpm: Properly handle Alert and Status Messages
When receiving Alert Message, if it is not unexpected but is unsupported for some reason, the port should return Not_Supported Message response. Also, according to PD3.0 Spec 6.5.2.1.4 Event Flags Field, the OTP/OVP/OCP flags in the Event Flags field in Status Message no longer require Get_PPS_Status Message to clear them. Thus remove it when receiving Status Message with those flags being set. In addition, add the missing AMS operations for Status Message. Fixes: 64f7c494a3c0 ("typec: tcpm: Add support for sink PPS related messages") Fixes: 0908c5aca31e ("usb: typec: tcpm: AMS and Collision Avoidance") Signed-off-by: Kyle Tso <kyletso@google.com> Link: https://lore.kernel.org/r/20210531164928.2368606-1-kyletso@google.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.
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