linux/pinctrl/pinconf-generic.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
5  * Copyright (C) 2011 ST-Ericsson SA
6  * Written on behalf of Linaro for ST-Ericsson
24  * enum pin_config_param - possible pin configuration parameters
31  *	transition from say pull-up to pull-down implies that you disable
32  *	pull-up in the process, this setting disables all biasing.
34  *	mode, also know as "third-state" (tristate) or "high-Z" or "floating".
36  *	if for example some other pin is going to drive the signal connected
40  *	impedance to GROUND). If the argument is != 0 pull-down is enabled,
52  *	impedance to VDD). If the argument is != 0 pull-up is enabled,
55  * @PIN_CONFIG_DRIVE_OPEN_DRAIN: the pin will be driven with open drain (open
58  *	config will enable open drain mode, the argument is ignored.
59  * @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source
60  *	(open emitter). Setting this config will enable open source mode, the
65  *	push-pull mode, the argument is ignored.
75  *	affect the pin's ability to drive output.  1 enables input, 0 disables
78  *	schmitt-trigger mode. If the schmitt-trigger has adjustable hysteresis,
81  * @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin.
82  *      If the argument != 0, schmitt-trigger mode is enabled. If it's 0,
83  *      schmitt-trigger mode is disabled.
85  *	schmitt-trigger mode. The argument is in uV.
91  * @PIN_CONFIG_OUTPUT: this will configure the pin as an output and drive a
93  *	indicate low level. (Please see Documentation/driver-api/pin-control.rst,
98  * 	configuration (eg. the currently selected mux function) drive values on