include/dm/pinctrl.h

13  * struct pinconf_param - pin config parameters
27  * struct pinctrl_ops - pin control operations, to be implemented by
28  * pin controller drivers.
38  * @get_pin_name: return the pin name of the pin selector,
39  *	called by the core to figure out which pin it shall do
44  *	called by the core to figure out which pin group it shall do
47  *	in this driver.  (necessary for pin-muxing)
50  *	certain device to.  (necessary for pin-muxing)
51  * @pinmux_set: enable a certain muxing function with a certain pin.
53  *	selects a certain pin to be used. On simple controllers one of them
54  *	may be ignored.  (necessary for pin-muxing against a single pin)
55  * @pinmux_group_set: enable a certain muxing function with a certain pin
59  *	(necessary for pin-muxing against a pin group)
61  *	from device trees  (necessary for pin-configuration)
63  *	device trees  (necessary for pin-configuration)
64  * @pinconf_set: configure an individual pin with a given parameter.
65  *	(necessary for pin-configuration against a single pin)
67  *	(necessary for pin-configuration against a pin group)
72  * @get_pin_muxing: display the muxing of a given pin.
138 	 * get_pin_muxing() - show pin muxing
140 	 * This allows to display the muxing of a given pin. It's useful for
141 	 * debug purpose to know if a pin is configured as GPIO or as an
147 	 * @selector:	Pin selector
148 	 * @buf		Pin's muxing description
149 	 * @size	Pin's muxing description length
159  * Generic pin configuration paramters
161  * enum pin_config_param - possible pin configuration parameters
162  * @PIN_CONFIG_BIAS_BUS_HOLD: the pin will be set to weakly latch so that it
167  * @PIN_CONFIG_BIAS_DISABLE: disable any pin bias on the pin, a
170  * @PIN_CONFIG_BIAS_HIGH_IMPEDANCE: the pin will be set to a high impedance
172  *	On output pins this effectively disconnects the pin, which is useful
173  *	if for example some other pin is going to drive the signal connected
176  * @PIN_CONFIG_BIAS_PULL_DOWN: the pin will be pulled down (usually with high
178  *	if it is 0, pull-down is total, i.e. the pin is connected to GROUND.
179  * @PIN_CONFIG_BIAS_PULL_PIN_DEFAULT: the pin will be pulled up or down based
187  * @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high
189  *	if it is 0, pull-up is total, i.e. the pin is connected to VDD.
190  * @PIN_CONFIG_DRIVE_OPEN_DRAIN: the pin will be driven with open drain (open
194  * @PIN_CONFIG_DRIVE_OPEN_SOURCE: the pin will be driven with open source
197  * @PIN_CONFIG_DRIVE_PUSH_PULL: the pin will be driven actively high and
201  * @PIN_CONFIG_DRIVE_STRENGTH: the pin will sink or source at most the current
203  * @PIN_CONFIG_INPUT_DEBOUNCE: this will configure the pin to debounce mode,
207  * @PIN_CONFIG_INPUT_ENABLE: enable the pin's input.  Note that this does not
208  *	affect the pin's ability to drive output.  1 enables input, 0 disables
210  * @PIN_CONFIG_INPUT_SCHMITT: this will configure an input pin to run in
214  * @PIN_CONFIG_INPUT_SCHMITT_ENABLE: control schmitt-trigger mode on the pin.
217  * @PIN_CONFIG_LOW_POWER_MODE: this will configure the pin for low power
221  * @PIN_CONFIG_OUTPUT_ENABLE: this will enable the pin's output mode
223  *	enable the output buffers and then let the pin controller current
227  * @PIN_CONFIG_OUTPUT: this will configure the pin as an output and drive a
231  * @PIN_CONFIG_POWER_SOURCE: if the pin can select between different power
235  * @PIN_CONFIG_SLEW_RATE: if the pin can select slew rate, the argument to
238  * @PIN_CONFIG_SKEW_DELAY: if the pin has programmable skew rate (on inputs)
242  * @PIN_CONFIG_END: this is the last enumerator for pin configurations, if
243  *	you need to pass in custom configurations to the pin controller, use
278  * such as "pins", "groups", "functions", and pin configuration parameters.
345  * pinctrl_decode_pin_config() - decode pin configuration flags
358  * pinctrl_decode_pin_config_dm() - decode pin configuration flags
388  * This allows to display the muxing description of the given pin for
392  * @selector	Pin index within pin-controller
393  * @buf		Pin's muxing description
394  * @size	Pin's muxing description length
401  * pinctrl_get_pins_count() - display pin-controller pins number
403  * This allows to know the number of pins owned by a given pin-controller
411  * pinctrl_get_pin_name() - Returns the pin's name
413  * This allows to display the pin's name for debug purpose
416  * @selector	Pin index within pin-controller
417  * @buf		Pin's name