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dadf2477e3
Add oversampling support for STM32H7, STM32MP15 & STM32MP13. STM32F4 ADC has no oversampling feature. The current support of the oversampling feature aims at increasing the data SNR, without changing the data resolution. As the oversampling by itself increases data resolution, a right shift is applied to keep the initial resolution. Only the oversampling ratio corresponding to a power of two are supported here, to get a direct link between right shift and oversampling ratio. (2^n ratio <=> n right shift) The oversampling ratio is shared by all channels, whatever channel type. (e.g. single ended or differential). Oversampling can be configured using IIO ABI: - oversampling_ratio_available - oversampling_ratio Co-developed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20250424151604.626758-1-olivier.moysan@foss.st.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 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.