[people/ms/u-boot.git] / arch / arm / include / asm / arch-tegra / funcmux.h

/*
 * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
 *
 * SPDX-License-Identifier:	GPL-2.0
 */

/* 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_ */
Commit	Line	Data
dc89ad14 TW	1	/*
	2	* Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
	3	*
5b8031cc	4	* SPDX-License-Identifier: GPL-2.0
dc89ad14 TW	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_ */