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b153a0bb41
The PMON_CONFIG register on ADM1272 is a 16 bit register. Writing a 8 bit value into it clears the upper 8 bits of the register, resulting in unexpected side effects. Fix by writing the 16 bit register value. Also, it has been reported that temperature readings are sometimes widely inaccurate, to the point where readings may result in device shutdown due to errant overtemperature faults. Improve by enabling temperature sampling. While at it, move the common code for ADM1272 and ADM1278 into a separate function, and clarify in the error message that an attempt was made to enable both VOUT and temperature monitoring. Last but not least, return the error code reported by the underlying I2C controller and not -ENODEV if updating the PMON_CONFIG register fails. After all, this does not indicate that the chip is not present, but an error in the communication with the chip. Fixes: |
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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.