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