Lines Matching refs:GPIO

1 GPIO Mappings
6 description of the deprecated integer-based GPIO interface please refer to
9 corresponding GPIO.
11 Platforms that make use of GPIOs must select ARCH_REQUIRE_GPIOLIB (if GPIO usage
12 is mandatory) or ARCH_WANT_OPTIONAL_GPIOLIB (if GPIO support can be omitted) in
20 exact way to do it depends on the GPIO controller providing the GPIOs, see the
42 "led" function, and GPIO 1 as the "power" GPIO:
52 The led GPIOs will be active-high, while the power GPIO will be active-low (i.e.
56 the <function>-prefix of the GPIO suffixes ("gpios" or "gpio", automatically
60 Internally, the GPIO subsystem prefixes the GPIO suffix ("gpios" or "gpio")
101 For more information about the ACPI GPIO bindings see
119   - chip_label is the label of the gpiod_chip instance providing the GPIO
120   - chip_hwnum is the hardware number of the GPIO within the chip
121   - dev_id is the identifier of the device that will make use of this GPIO. It
124   - con_id is the name of the GPIO function from the device point of view. It
126   - idx is the index of the GPIO within the function.
128 	* GPIOF_ACTIVE_LOW	- to configure the GPIO as active-low
129 	* GPIOF_OPEN_DRAIN	- GPIO pin is open drain type.
130 	* GPIOF_OPEN_SOURCE	- GPIO pin is open source type.
165 signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped
167 integer GPIO interface, the active-low property is handled during mapping and is
168 thus transparent to GPIO consumers.