Lines Matching +full:parent +full:- +full:interrupt +full:- +full:base
1 /* SPDX-License-Identifier: GPL-2.0 */
11 #include <linux/pinctrl/pinconf-generic.h>
39 * struct gpio_irq_chip - GPIO interrupt controller
52 * Interrupt translation domain; responsible for mapping between GPIO
60 * Table of interrupt domain operations for this IRQ chip.
76 * If non-NULL, will be set as the parent of this GPIO interrupt
77 * controller's IRQ domain to establish a hierarchical interrupt
79 * interrupt support.
86 * This callback translates a child hardware IRQ offset to a parent
87 * hardware IRQ offset on a hierarchical interrupt chip. The child
88 * hardware IRQs correspond to the GPIO index 0..ngpio-1 (see the
89 * ngpio field of struct gpio_chip) and the corresponding parent
95 * If some ranges of hardware IRQs do not have a corresponding parent
96 * HWIRQ, return -EINVAL, but also make sure to fill in @valid_mask and
110 * for the parent's IRQ domain. If this is not specified, then
111 * &gpiochip_populate_parent_fwspec_twocell will be used. A four-cell
175 * The interrupt handler for the GPIO chip's parent interrupts, may be
176 * NULL if the parent interrupts are nested rather than cascaded.
186 * parent interrupt.
195 * different data for each parent. This cannot be NULL if
204 * The number of interrupt parents of a GPIO chip.
211 * A list of interrupt parents of a GPIO chip. This is owned by the
219 * A list of interrupt parents for each line of a GPIO chip.
226 * True if set the interrupt handling uses nested threads.
234 * sized array to be used as parent data.
260 * bits from 0..(ngpios-1) set to "1" as in valid. The callback can
313 * struct gpio_chip - abstract a GPIO controller
315 * number or the name of the SoC IP-block implementing it.
317 * @parent: optional parent device providing the GPIOs
320 * @request: optional hook for chip-specific activation, such as
322 * @free: optional hook for chip-specific deactivation, such as
327 * function, even on input-only or output-only gpio chips.
329 * This can be omitted on input-only or output-only gpio chips.
331 * This can be omitted on input-only or output-only gpio chips.
339 * @to_irq: optional hook supporting non-static gpio_to_irq() mappings;
353 * @base: identifies the first GPIO number handled by this chip;
355 * DEPRECATION: providing anything non-negative and nailing the base
356 * offset of GPIO chips is deprecated. Please pass -1 as base to
357 * let gpiolib select the chip base in all possible cases. We want to
360 * handled is (base + ngpio - 1).
389 * @bgpio_lock: used to lock chip->bgpio_data. Also, this is needed to keep
403 * by "offset" values in the range 0..(@ngpio - 1). When those signals
405 * is calculated by subtracting @base from the gpio number.
410 struct device *parent; member
455 int base; member
486 * Integrates interrupt chip functionality with the GPIO chip. Can be
523 * Callback to translate a device tree GPIO specifier into a chip-
532 * Optional hook for the case that no gpio-ranges property is defined
534 * of gpio-ranges). So this callback is helpful to provide the
547 * for_each_requested_gpio_in_range - iterates over requested GPIOs in a given range
550 * @base: first GPIO in the range
551 * @size: amount of GPIOs to check starting from @base
554 #define for_each_requested_gpio_in_range(chip, i, base, size, label) \ argument
556 if ((label = gpiochip_is_requested(chip, base + i)) == NULL) {} else
560 for_each_requested_gpio_in_range(chip, i, 0, chip->ngpio, label)
568 * gpiochip_add_data() - register a gpio_chip
569 * @gc: the chip to register, with gc->base initialized
570 * @data: driver-private data associated with this chip
575 * can be freely used, the gc->parent device must be registered before
582 * If gc->base is negative, this requests dynamic assignment of
587 * gc->base is invalid or already associated with a different chip.
640 girq->chip = (struct irq_chip *)chip; in gpio_irq_chip_set_chip()
656 int base; member
706 return -EINVAL; in gpiochip_irqchip_add_domain()
716 * struct gpio_pin_range - pin range controlled by a gpio chip
783 return ERR_PTR(-ENODEV); in gpiod_to_chip()
790 return -EINVAL; in gpiochip_lock_as_irq()
802 if (!fwnode_property_present(child, "gpio-controller")) {} else