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The ocillator on the m41t62 (and other chips of this type) needs a kickstart upon a failure; the RTC read routine will notice the oscillator failure and fail reads. This is added in the RTC write routine; this allows the system to know that the time in the RTC is accurate. This is following the procedure described in section 3.11 of "https://www.st.com/resource/en/datasheet/m41t62.pdf" Signed-off-by: A. Niyas Ahamed Mydeen <nmydeen@mvista.com> Reviewed-by: Corey Minyard <cminyard@mvista.com> Link: https://lore.kernel.org/r/20250402120546.336657-2-nmydeen@mvista.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.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 reStructuredText 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.