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