Lines Matching refs:controllers

37     cases (to support bidirectional signaling).  GPIO controllers may have
105 uses numbers 0..63 with one set of GPIO controllers, 64-79 with another
121 Whether a platform supports multiple GPIO controllers is a platform-specific
123 of GPIO numbers, and whether new controllers can be added at runtime.  Such issues
162 Most GPIO controllers can be accessed with memory read/write instructions.
197 Some GPIO controllers must be accessed using message based busses like I2C
423 Some GPIO controllers directly support open drain outputs; many don't.  When
442 GPIO controllers and the pinctrl subsystem
522 will be found there.  That will list all the controllers registered through
600 For external GPIO controllers -- such as I2C or SPI expanders, ASICs, multi
615 such gpio_chip controllers to provide setup() and teardown() callbacks to
656    -	GPIO controllers ("gpio_chip" instances).
719 GPIO controllers have paths like /sys/class/gpio/gpiochip42/ (for the