Verdin SPI_1 interface has a dedicated hardware controlled chip select that is currently configured in the same pinctrl group as MISO/MOSI/CLK, however it is possible that it can be used only as a standard GPIO be it a chip select or not. To maximize flexibility and avoid duplication in the carrier board dts files move the SPI_1 CS in a dedicated pinctrl and also adds an additional pinctrl to simplify using SPI_1 CS as a GPIO. Signed-off-by: Joao Paulo Goncalves <joao.goncalves@toradex.com> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com> Link: https://lore.kernel.org/r/20231205184605.35225-2-francesco@dolcini.it Signed-off-by: Nishanth Menon <nm@ti.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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