1dc89ad14STom Warren /* 2dc89ad14STom Warren * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. 3dc89ad14STom Warren * 4*5b8031ccSTom Rini * SPDX-License-Identifier: GPL-2.0 5dc89ad14STom Warren */ 6dc89ad14STom Warren 7dc89ad14STom Warren /* Tegra high-level function multiplexing */ 8dc89ad14STom Warren 9dc89ad14STom Warren #ifndef _TEGRA_FUNCMUX_H_ 10dc89ad14STom Warren #define _TEGRA_FUNCMUX_H_ 11dc89ad14STom Warren 12dc89ad14STom Warren /** 13dc89ad14STom Warren * Select a config for a particular peripheral. 14dc89ad14STom Warren * 15dc89ad14STom Warren * Each peripheral can operate through a number of configurations, 16dc89ad14STom Warren * which are sets of pins that it uses to bring out its signals. 17dc89ad14STom Warren * The basic config is 0, and higher numbers indicate different 18dc89ad14STom Warren * pinmux settings to bring the peripheral out on other pins, 19dc89ad14STom Warren * 20dc89ad14STom Warren * This function also disables tristate for the function's pins, 21dc89ad14STom Warren * so that they operate in normal mode. 22dc89ad14STom Warren * 23dc89ad14STom Warren * @param id Peripheral id 24dc89ad14STom Warren * @param config Configuration to use (FUNCMUX_...), 0 for default 25dc89ad14STom Warren * @return 0 if ok, -1 on error (e.g. incorrect id or config) 26dc89ad14STom Warren */ 27dc89ad14STom Warren int funcmux_select(enum periph_id id, int config); 28dc89ad14STom Warren 29dc89ad14STom Warren #endif /* _TEGRA_FUNCMUX_H_ */ 30