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When reading registers on the AD2S1210 chip, we have to supply a "dummy" address for the second SPI tx byte so that we don't accidentally write to a register. This register will be read and the value discarded on the next regmap read or write call. Reading the fault register has a side-effect of clearing the faults so we should not use this register for the dummy read. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://lore.kernel.org/r/20231005-ad2s1210-mainline-v4-1-ec00746840fc@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.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.
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.