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
38 "led" function, and GPIO 1 as the "power" GPIO:
48 The led GPIOs will be active-high, while the power GPIO will be active-low (i.e.
88 For more information about the ACPI GPIO bindings see
106   - chip_label is the label of the gpiod_chip instance providing the GPIO
107   - chip_hwnum is the hardware number of the GPIO within the chip
108   - dev_id is the identifier of the device that will make use of this GPIO. It
111   - con_id is the name of the GPIO function from the device point of view. It
113   - idx is the index of the GPIO within the function.
115 	* GPIOF_ACTIVE_LOW	- to configure the GPIO as active-low
116 	* GPIOF_OPEN_DRAIN	- GPIO pin is open drain type.
117 	* GPIOF_OPEN_SOURCE	- GPIO pin is open source type.
152 Since the "power" GPIO is mapped as active-low, its actual signal will be 0
153 after this code. Contrary to the legacy integer GPIO interface, the active-low
154 property is handled during mapping and is thus transparent to GPIO consumers.