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d86f3c9bba
The 'currpage' and 'currphase' variables in struct pmbus_data are used by the PMBus core to determine if the phase or page value has changed. Both are initialized with values which are never expected to be set in the code to ensure that the first page/phase write operation is actually performed. This is not well explained and occasionally causes confusion. Change the type of both variables to s16 and initialize with -1 to ensure that the initial value never matches a requested value, and clarify that this value means "unknown/unset". Cc: Alex Qiu <xqiu@google.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> |
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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.