Lines Matching +full:parent +full:- +full:interrupt +full:- +full:base
1 /* SPDX-License-Identifier: GPL-2.0 */
12 #include <linux/pinctrl/pinconf-generic.h>
29 * struct gpio_irq_chip - GPIO interrupt controller
42 * Interrupt translation domain; responsible for mapping between GPIO
50 * Table of interrupt domain operations for this IRQ chip.
66 * If non-NULL, will be set as the parent of this GPIO interrupt
67 * controller's IRQ domain to establish a hierarchical interrupt
69 * interrupt support.
76 * This callback translates a child hardware IRQ offset to a parent
77 * hardware IRQ offset on a hierarchical interrupt chip. The child
78 * hardware IRQs correspond to the GPIO index 0..ngpio-1 (see the
79 * ngpio field of struct gpio_chip) and the corresponding parent
85 * If some ranges of hardware IRQs do not have a corresponding parent
86 * HWIRQ, return -EINVAL, but also make sure to fill in @valid_mask and
100 * for the parent's IRQ domain. If this is not specified, then
101 * &gpiochip_populate_parent_fwspec_twocell will be used. A four-cell
164 * The interrupt handler for the GPIO chip's parent interrupts, may be
165 * NULL if the parent interrupts are nested rather than cascaded.
172 * Data associated, and passed to, the handler for the parent
173 * interrupt.
180 * The number of interrupt parents of a GPIO chip.
187 * A list of interrupt parents of a GPIO chip. This is owned by the
195 * A list of interrupt parents for each line of a GPIO chip.
202 * True if set the interrupt handling uses nested threads.
219 * bits from 0..(ngpios-1) set to "1" as in valid. The callback can
272 * struct gpio_chip - abstract a GPIO controller
274 * number or the name of the SoC IP-block implementing it.
276 * @parent: optional parent device providing the GPIOs
278 * @request: optional hook for chip-specific activation, such as
280 * @free: optional hook for chip-specific deactivation, such as
285 * function, even on input-only or output-only gpio chips.
287 * This can be omitted on input-only or output-only gpio chips.
289 * This can be omitted on input-only or output-only gpio chips.
297 * @to_irq: optional hook supporting non-static gpio_to_irq() mappings;
307 * @base: identifies the first GPIO number handled by this chip;
309 * DEPRECATION: providing anything non-negative and nailing the base
310 * offset of GPIO chips is deprecated. Please pass -1 as base to
311 * let gpiolib select the chip base in all possible cases. We want to
314 * handled is (base + ngpio - 1).
343 * @bgpio_lock: used to lock chip->bgpio_data. Also, this is needed to keep
357 * by "offset" values in the range 0..(@ngpio - 1). When those signals
359 * is calculated by subtracting @base from the gpio number.
364 struct device *parent; member
402 int base; member
433 * Integrates interrupt chip functionality with the GPIO chip. Can be
470 * Callback to translate a device tree GPIO specifier into a chip-
482 * for_each_requested_gpio_in_range - iterates over requested GPIOs in a given range
485 * @base: first GPIO in the range
486 * @size: amount of GPIOs to check starting from @base
489 #define for_each_requested_gpio_in_range(chip, i, base, size, label) \ argument
491 if ((label = gpiochip_is_requested(chip, base + i)) == NULL) {} else
495 for_each_requested_gpio_in_range(chip, i, 0, chip->ngpio, label)
503 * gpiochip_add_data() - register a gpio_chip
504 * @gc: the chip to register, with gc->base initialized
505 * @data: driver-private data associated with this chip
510 * can be freely used, the gc->parent device must be registered before
517 * If gc->base is negative, this requests dynamic assignment of
522 * gc->base is invalid or already associated with a different chip.
575 int base; member
639 return -EINVAL; in gpiochip_irqchip_add_domain()
649 * struct gpio_pin_range - pin range controlled by a gpio chip
716 return ERR_PTR(-ENODEV); in gpiod_to_chip()
723 return -EINVAL; in gpiochip_lock_as_irq()