Previously, the AD7780 driver only supported gpio for the 'powerdown' pin. This commit adds suppport for the 'gain' and 'filter' pin. Signed-off-by: Renato Lui Geh <renatogeh@gmail.com> Signed-off-by: Giuliano Belinassi <giuliano.belinassi@usp.br> Co-developed-by: Giuliano Belinassi <giuliano.belinassi@usp.br> 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.
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