| Tom Warren | 13ac544 | 2012-12-11 13:34:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved. |
| 3 | * |
| Tom Rini | e237880 | 2016-01-14 22:05:13 -0500 | [diff] [blame] | 4 | * SPDX-License-Identifier: GPL-2.0 |
| Tom Warren | 13ac544 | 2012-12-11 13:34:12 +0000 | [diff] [blame] | 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_ */ |