1 /*
2  * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
3  *
4  * SPDX-License-Identifier:	GPL-2.0
5  */
6 
7 /* Tegra high-level function multiplexing */
8 
9 #ifndef _TEGRA_FUNCMUX_H_
10 #define _TEGRA_FUNCMUX_H_
11 
12 /**
13  * Select a config for a particular peripheral.
14  *
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,
19  *
20  * This function also disables tristate for the function's pins,
21  * so that they operate in normal mode.
22  *
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)
26  */
27 int funcmux_select(enum periph_id id, int config);
28 
29 #endif	/* _TEGRA_FUNCMUX_H_ */
30