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4efbd51c48
Add "suspended" flag in suspend_noirq()/resume_noirq() callback to prevent new i2c job started, and use i2c_lock_adapter() to wait for current i2c transfer finished. If any i2c client try to access I2C after suspend_noirq() or before resume_noirq() callback, return the error, and they should fix it, not to start i2c access at this moment. Change-Id: Idd1142058d10547d085895a498201c2ade6b9e96 Signed-off-by: David Wu <david.wu@rock-chips.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.