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[ Upstream commit737720197b] When calling ad9467_set_scale(), multiple calls to ad9467_spi_write() are done which means we need to properly protect the whole operation so we are sure we will be in a sane state if two concurrent calls occur. Fixes:ad67971202("iio: adc: ad9467: add support AD9467 ADC") Signed-off-by: Nuno Sa <nuno.sa@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://lore.kernel.org/r/20231207-iio-backend-prep-v2-3-a4a33bc4d70e@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.