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
25  * @PIN_CONFIG_BIAS_BUS_HOLD: the pin will be set to weakly latch so that it
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".
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,
65  *	push-pull mode, the argument is ignored.
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.
93  *	indicate low level. (Please see Documentation/driver-api/pin-control.rst,
94  *	section "GPIO mode pitfalls" for a discussion around this parameter.)
108  *	or latch delay (on outputs) this parameter (in a custom format)
109  *	specifies the clock skew or latch delay. It typically controls how