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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>