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On SAMA7G5 suspending ports will cut the access to OHCI registers and any subsequent access to them will lead to CPU being blocked trying to access that memory. Same thing happens on resume: if OHCI memory is accessed before resuming ports the CPU will block on that access. The OCHI memory is accessed on suspend/resume though ohci_suspend()/ohci_resume(). Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20210721132905.1970713-1-claudiu.beznea@microchip.com 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.