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