Lines Matching full:gc
84 static void gpiochip_free_hogs(struct gpio_chip *gc);
85 static int gpiochip_add_irqchip(struct gpio_chip *gc,
88 static void gpiochip_irqchip_remove(struct gpio_chip *gc);
89 static int gpiochip_irqchip_init_hw(struct gpio_chip *gc);
90 static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gc);
91 static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gc);
135 * @gc: GPIO chip
142 struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, in gpiochip_get_desc() argument
145 struct gpio_device *gdev = gc->gpiodev; in gpiochip_get_desc()
217 struct gpio_chip *gc; in gpiod_get_direction() local
221 gc = gpiod_to_chip(desc); in gpiod_get_direction()
232 if (!gc->get_direction) in gpiod_get_direction()
235 ret = gc->get_direction(gc, offset); in gpiod_get_direction()
335 * Take the names from gc->names and assign them to their GPIO descriptors.
342 static int gpiochip_set_desc_names(struct gpio_chip *gc) in gpiochip_set_desc_names() argument
344 struct gpio_device *gdev = gc->gpiodev; in gpiochip_set_desc_names()
348 for (i = 0; i != gc->ngpio; ++i) { in gpiochip_set_desc_names()
351 gpio = gpio_name_to_desc(gc->names[i]); in gpiochip_set_desc_names()
355 gc->names[i]); in gpiochip_set_desc_names()
359 for (i = 0; i != gc->ngpio; ++i) in gpiochip_set_desc_names()
360 gdev->descs[i].name = gc->names[i]; in gpiochip_set_desc_names()
412 static unsigned long *gpiochip_allocate_mask(struct gpio_chip *gc) in gpiochip_allocate_mask() argument
416 p = bitmap_alloc(gc->ngpio, GFP_KERNEL); in gpiochip_allocate_mask()
421 bitmap_fill(p, gc->ngpio); in gpiochip_allocate_mask()
426 static int gpiochip_alloc_valid_mask(struct gpio_chip *gc) in gpiochip_alloc_valid_mask() argument
428 if (!(of_gpio_need_valid_mask(gc) || gc->init_valid_mask)) in gpiochip_alloc_valid_mask()
431 gc->valid_mask = gpiochip_allocate_mask(gc); in gpiochip_alloc_valid_mask()
432 if (!gc->valid_mask) in gpiochip_alloc_valid_mask()
438 static int gpiochip_init_valid_mask(struct gpio_chip *gc) in gpiochip_init_valid_mask() argument
440 if (gc->init_valid_mask) in gpiochip_init_valid_mask()
441 return gc->init_valid_mask(gc, in gpiochip_init_valid_mask()
442 gc->valid_mask, in gpiochip_init_valid_mask()
443 gc->ngpio); in gpiochip_init_valid_mask()
448 static void gpiochip_free_valid_mask(struct gpio_chip *gc) in gpiochip_free_valid_mask() argument
450 bitmap_free(gc->valid_mask); in gpiochip_free_valid_mask()
451 gc->valid_mask = NULL; in gpiochip_free_valid_mask()
454 static int gpiochip_add_pin_ranges(struct gpio_chip *gc) in gpiochip_add_pin_ranges() argument
456 if (gc->add_pin_ranges) in gpiochip_add_pin_ranges()
457 return gc->add_pin_ranges(gc); in gpiochip_add_pin_ranges()
462 bool gpiochip_line_is_valid(const struct gpio_chip *gc, in gpiochip_line_is_valid() argument
466 if (likely(!gc->valid_mask)) in gpiochip_line_is_valid()
468 return test_bit(offset, gc->valid_mask); in gpiochip_line_is_valid()
523 static void gpiochip_machine_hog(struct gpio_chip *gc, struct gpiod_hog *hog) in gpiochip_machine_hog() argument
528 desc = gpiochip_get_desc(gc, hog->chip_hwnum); in gpiochip_machine_hog()
530 chip_err(gc, "%s: unable to get GPIO desc: %ld\n", __func__, in gpiochip_machine_hog()
541 __func__, gc->label, hog->chip_hwnum, rv); in gpiochip_machine_hog()
544 static void machine_gpiochip_add(struct gpio_chip *gc) in machine_gpiochip_add() argument
551 if (!strcmp(gc->label, hog->chip_label)) in machine_gpiochip_add()
552 gpiochip_machine_hog(gc, hog); in machine_gpiochip_add()
571 int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, in gpiochip_add_data_with_key() argument
575 struct fwnode_handle *fwnode = gc->parent ? dev_fwnode(gc->parent) : NULL; in gpiochip_add_data_with_key()
579 int base = gc->base; in gpiochip_add_data_with_key()
591 gdev->chip = gc; in gpiochip_add_data_with_key()
592 gc->gpiodev = gdev; in gpiochip_add_data_with_key()
593 if (gc->parent) { in gpiochip_add_data_with_key()
594 gdev->dev.parent = gc->parent; in gpiochip_add_data_with_key()
595 gdev->dev.of_node = gc->parent->of_node; in gpiochip_add_data_with_key()
598 of_gpio_dev_init(gc, gdev); in gpiochip_add_data_with_key()
617 if (gc->parent && gc->parent->driver) in gpiochip_add_data_with_key()
618 gdev->owner = gc->parent->driver->owner; in gpiochip_add_data_with_key()
619 else if (gc->owner) in gpiochip_add_data_with_key()
621 gdev->owner = gc->owner; in gpiochip_add_data_with_key()
625 gdev->descs = kcalloc(gc->ngpio, sizeof(gdev->descs[0]), GFP_KERNEL); in gpiochip_add_data_with_key()
631 if (gc->ngpio == 0) { in gpiochip_add_data_with_key()
632 chip_err(gc, "tried to insert a GPIO chip with zero lines\n"); in gpiochip_add_data_with_key()
637 if (gc->ngpio > FASTPATH_NGPIO) in gpiochip_add_data_with_key()
638 chip_warn(gc, "line cnt %u is greater than fast path cnt %u\n", in gpiochip_add_data_with_key()
639 gc->ngpio, FASTPATH_NGPIO); in gpiochip_add_data_with_key()
641 gdev->label = kstrdup_const(gc->label ?: "unknown", GFP_KERNEL); in gpiochip_add_data_with_key()
647 gdev->ngpio = gc->ngpio; in gpiochip_add_data_with_key()
660 base = gpiochip_find_base(gc->ngpio); in gpiochip_add_data_with_key()
672 gc->base = base; in gpiochip_add_data_with_key()
682 for (i = 0; i < gc->ngpio; i++) in gpiochip_add_data_with_key()
693 if (gc->names) in gpiochip_add_data_with_key()
694 ret = gpiochip_set_desc_names(gc); in gpiochip_add_data_with_key()
696 ret = devprop_gpiochip_set_names(gc); in gpiochip_add_data_with_key()
700 ret = gpiochip_alloc_valid_mask(gc); in gpiochip_add_data_with_key()
704 ret = of_gpiochip_add(gc); in gpiochip_add_data_with_key()
708 ret = gpiochip_init_valid_mask(gc); in gpiochip_add_data_with_key()
714 for (i = 0; i < gc->ngpio; i++) { in gpiochip_add_data_with_key()
717 if (gc->get_direction && gpiochip_line_is_valid(gc, i)) { in gpiochip_add_data_with_key()
719 &desc->flags, !gc->get_direction(gc, i)); in gpiochip_add_data_with_key()
722 &desc->flags, !gc->direction_input); in gpiochip_add_data_with_key()
727 ret = gpiochip_add_pin_ranges(gc); in gpiochip_add_data_with_key()
731 acpi_gpiochip_add(gc); in gpiochip_add_data_with_key()
733 machine_gpiochip_add(gc); in gpiochip_add_data_with_key()
735 ret = gpiochip_irqchip_init_valid_mask(gc); in gpiochip_add_data_with_key()
739 ret = gpiochip_irqchip_init_hw(gc); in gpiochip_add_data_with_key()
743 ret = gpiochip_add_irqchip(gc, lock_key, request_key); in gpiochip_add_data_with_key()
763 gpiochip_irqchip_remove(gc); in gpiochip_add_data_with_key()
765 gpiochip_irqchip_free_valid_mask(gc); in gpiochip_add_data_with_key()
767 acpi_gpiochip_remove(gc); in gpiochip_add_data_with_key()
769 gpiochip_free_hogs(gc); in gpiochip_add_data_with_key()
770 of_gpiochip_remove(gc); in gpiochip_add_data_with_key()
772 gpiochip_remove_pin_ranges(gc); in gpiochip_add_data_with_key()
773 gpiochip_free_valid_mask(gc); in gpiochip_add_data_with_key()
790 gc->label ? : "generic", ret); in gpiochip_add_data_with_key()
798 * @gc: GPIO chip
803 void *gpiochip_get_data(struct gpio_chip *gc) in gpiochip_get_data() argument
805 return gc->gpiodev->data; in gpiochip_get_data()
811 * @gc: the chip to unregister
815 void gpiochip_remove(struct gpio_chip *gc) in gpiochip_remove() argument
817 struct gpio_device *gdev = gc->gpiodev; in gpiochip_remove()
823 gpiochip_free_hogs(gc); in gpiochip_remove()
826 gpiochip_irqchip_remove(gc); in gpiochip_remove()
827 acpi_gpiochip_remove(gc); in gpiochip_remove()
828 of_gpiochip_remove(gc); in gpiochip_remove()
829 gpiochip_remove_pin_ranges(gc); in gpiochip_remove()
830 gpiochip_free_valid_mask(gc); in gpiochip_remove()
839 if (gpiochip_is_requested(gc, i)) in gpiochip_remove()
871 int (*match)(struct gpio_chip *gc, in gpiochip_find() argument
875 struct gpio_chip *gc = NULL; in gpiochip_find() local
881 gc = gdev->chip; in gpiochip_find()
887 return gc; in gpiochip_find()
891 static int gpiochip_match_name(struct gpio_chip *gc, void *data) in gpiochip_match_name() argument
895 return !strcmp(gc->label, name); in gpiochip_match_name()
909 static int gpiochip_irqchip_init_hw(struct gpio_chip *gc) in gpiochip_irqchip_init_hw() argument
911 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_irqchip_init_hw()
916 return girq->init_hw(gc); in gpiochip_irqchip_init_hw()
919 static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_init_valid_mask() argument
921 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_irqchip_init_valid_mask()
926 girq->valid_mask = gpiochip_allocate_mask(gc); in gpiochip_irqchip_init_valid_mask()
930 girq->init_valid_mask(gc, girq->valid_mask, gc->ngpio); in gpiochip_irqchip_init_valid_mask()
935 static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_free_valid_mask() argument
937 bitmap_free(gc->irq.valid_mask); in gpiochip_irqchip_free_valid_mask()
938 gc->irq.valid_mask = NULL; in gpiochip_irqchip_free_valid_mask()
941 bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gc, in gpiochip_irqchip_irq_valid() argument
944 if (!gpiochip_line_is_valid(gc, offset)) in gpiochip_irqchip_irq_valid()
947 if (likely(!gc->irq.valid_mask)) in gpiochip_irqchip_irq_valid()
949 return test_bit(offset, gc->irq.valid_mask); in gpiochip_irqchip_irq_valid()
955 * @gc: the gpiochip to set the irqchip chain to
962 static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gc, in gpiochip_set_cascaded_irqchip() argument
966 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_set_cascaded_irqchip()
967 struct device *dev = &gc->gpiodev->dev; in gpiochip_set_cascaded_irqchip()
970 chip_err(gc, "called %s before setting up irqchip\n", in gpiochip_set_cascaded_irqchip()
976 if (gc->can_sleep) { in gpiochip_set_cascaded_irqchip()
977 chip_err(gc, in gpiochip_set_cascaded_irqchip()
985 chip_err(gc, "out of memory allocating parent IRQ\n"); in gpiochip_set_cascaded_irqchip()
995 gc); in gpiochip_set_cascaded_irqchip()
1001 * @gc: the gpiochip to set the irqchip nested handler to
1006 void gpiochip_set_nested_irqchip(struct gpio_chip *gc, in gpiochip_set_nested_irqchip() argument
1010 gpiochip_set_cascaded_irqchip(gc, parent_irq, NULL); in gpiochip_set_nested_irqchip()
1019 * @gc: the gpiochip to set the irqchip hierarchical handler to
1023 static void gpiochip_set_hierarchical_irqchip(struct gpio_chip *gc, in gpiochip_set_hierarchical_irqchip() argument
1027 if (is_of_node(gc->irq.fwnode)) in gpiochip_set_hierarchical_irqchip()
1038 if (is_fwnode_irqchip(gc->irq.fwnode)) { in gpiochip_set_hierarchical_irqchip()
1042 for (i = 0; i < gc->ngpio; i++) { in gpiochip_set_hierarchical_irqchip()
1046 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_set_hierarchical_irqchip()
1054 ret = girq->child_to_parent_hwirq(gc, i, in gpiochip_set_hierarchical_irqchip()
1059 chip_err(gc, "skip set-up on hwirq %d\n", in gpiochip_set_hierarchical_irqchip()
1064 fwspec.fwnode = gc->irq.fwnode; in gpiochip_set_hierarchical_irqchip()
1066 fwspec.param[0] = girq->child_offset_to_irq(gc, i); in gpiochip_set_hierarchical_irqchip()
1070 ret = __irq_domain_alloc_irqs(gc->irq.domain, in gpiochip_set_hierarchical_irqchip()
1079 chip_err(gc, in gpiochip_set_hierarchical_irqchip()
1087 chip_err(gc, "%s unknown fwnode type proceed anyway\n", __func__); in gpiochip_set_hierarchical_irqchip()
1120 struct gpio_chip *gc = d->host_data; in gpiochip_hierarchy_irq_domain_alloc() local
1127 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_hierarchy_irq_domain_alloc()
1136 ret = gc->irq.child_irq_domain_ops.translate(d, fwspec, &hwirq, &type); in gpiochip_hierarchy_irq_domain_alloc()
1140 chip_dbg(gc, "allocate IRQ %d, hwirq %lu\n", irq, hwirq); in gpiochip_hierarchy_irq_domain_alloc()
1142 ret = girq->child_to_parent_hwirq(gc, hwirq, type, in gpiochip_hierarchy_irq_domain_alloc()
1145 chip_err(gc, "can't look up hwirq %lu\n", hwirq); in gpiochip_hierarchy_irq_domain_alloc()
1148 chip_dbg(gc, "found parent hwirq %u\n", parent_hwirq); in gpiochip_hierarchy_irq_domain_alloc()
1157 gc->irq.chip, in gpiochip_hierarchy_irq_domain_alloc()
1158 gc, in gpiochip_hierarchy_irq_domain_alloc()
1164 parent_arg = girq->populate_parent_alloc_arg(gc, parent_hwirq, parent_type); in gpiochip_hierarchy_irq_domain_alloc()
1168 chip_dbg(gc, "alloc_irqs_parent for %d parent hwirq %d\n", in gpiochip_hierarchy_irq_domain_alloc()
1170 irq_set_lockdep_class(irq, gc->irq.lock_key, gc->irq.request_key); in gpiochip_hierarchy_irq_domain_alloc()
1179 chip_err(gc, in gpiochip_hierarchy_irq_domain_alloc()
1187 static unsigned int gpiochip_child_offset_to_irq_noop(struct gpio_chip *gc, in gpiochip_child_offset_to_irq_noop() argument
1209 static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc) in gpiochip_hierarchy_add_domain() argument
1211 if (!gc->irq.child_to_parent_hwirq || in gpiochip_hierarchy_add_domain()
1212 !gc->irq.fwnode) { in gpiochip_hierarchy_add_domain()
1213 chip_err(gc, "missing irqdomain vital data\n"); in gpiochip_hierarchy_add_domain()
1217 if (!gc->irq.child_offset_to_irq) in gpiochip_hierarchy_add_domain()
1218 gc->irq.child_offset_to_irq = gpiochip_child_offset_to_irq_noop; in gpiochip_hierarchy_add_domain()
1220 if (!gc->irq.populate_parent_alloc_arg) in gpiochip_hierarchy_add_domain()
1221 gc->irq.populate_parent_alloc_arg = in gpiochip_hierarchy_add_domain()
1224 gpiochip_hierarchy_setup_domain_ops(&gc->irq.child_irq_domain_ops); in gpiochip_hierarchy_add_domain()
1226 gc->irq.domain = irq_domain_create_hierarchy( in gpiochip_hierarchy_add_domain()
1227 gc->irq.parent_domain, in gpiochip_hierarchy_add_domain()
1229 gc->ngpio, in gpiochip_hierarchy_add_domain()
1230 gc->irq.fwnode, in gpiochip_hierarchy_add_domain()
1231 &gc->irq.child_irq_domain_ops, in gpiochip_hierarchy_add_domain()
1232 gc); in gpiochip_hierarchy_add_domain()
1234 if (!gc->irq.domain) in gpiochip_hierarchy_add_domain()
1237 gpiochip_set_hierarchical_irqchip(gc, gc->irq.chip); in gpiochip_hierarchy_add_domain()
1242 static bool gpiochip_hierarchy_is_hierarchical(struct gpio_chip *gc) in gpiochip_hierarchy_is_hierarchical() argument
1244 return !!gc->irq.parent_domain; in gpiochip_hierarchy_is_hierarchical()
1247 void *gpiochip_populate_parent_fwspec_twocell(struct gpio_chip *gc, in gpiochip_populate_parent_fwspec_twocell() argument
1257 fwspec->fwnode = gc->irq.parent_domain->fwnode; in gpiochip_populate_parent_fwspec_twocell()
1266 void *gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *gc, in gpiochip_populate_parent_fwspec_fourcell() argument
1276 fwspec->fwnode = gc->irq.parent_domain->fwnode; in gpiochip_populate_parent_fwspec_fourcell()
1289 static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc) in gpiochip_hierarchy_add_domain() argument
1294 static bool gpiochip_hierarchy_is_hierarchical(struct gpio_chip *gc) in gpiochip_hierarchy_is_hierarchical() argument
1314 struct gpio_chip *gc = d->host_data; in gpiochip_irq_map() local
1317 if (!gpiochip_irqchip_irq_valid(gc, hwirq)) in gpiochip_irq_map()
1320 irq_set_chip_data(irq, gc); in gpiochip_irq_map()
1325 irq_set_lockdep_class(irq, gc->irq.lock_key, gc->irq.request_key); in gpiochip_irq_map()
1326 irq_set_chip_and_handler(irq, gc->irq.chip, gc->irq.handler); in gpiochip_irq_map()
1328 if (gc->irq.threaded) in gpiochip_irq_map()
1332 if (gc->irq.num_parents == 1) in gpiochip_irq_map()
1333 ret = irq_set_parent(irq, gc->irq.parents[0]); in gpiochip_irq_map()
1334 else if (gc->irq.map) in gpiochip_irq_map()
1335 ret = irq_set_parent(irq, gc->irq.map[hwirq]); in gpiochip_irq_map()
1344 if (gc->irq.default_type != IRQ_TYPE_NONE) in gpiochip_irq_map()
1345 irq_set_irq_type(irq, gc->irq.default_type); in gpiochip_irq_map()
1353 struct gpio_chip *gc = d->host_data; in gpiochip_irq_unmap() local
1355 if (gc->irq.threaded) in gpiochip_irq_unmap()
1387 struct gpio_chip *gc = domain->host_data; in gpiochip_irq_domain_activate() local
1389 return gpiochip_lock_as_irq(gc, data->hwirq); in gpiochip_irq_domain_activate()
1405 struct gpio_chip *gc = domain->host_data; in gpiochip_irq_domain_deactivate() local
1407 return gpiochip_unlock_as_irq(gc, data->hwirq); in gpiochip_irq_domain_deactivate()
1411 static int gpiochip_to_irq(struct gpio_chip *gc, unsigned offset) in gpiochip_to_irq() argument
1413 struct irq_domain *domain = gc->irq.domain; in gpiochip_to_irq()
1421 if (!gc->irq.initialized) in gpiochip_to_irq()
1425 if (!gpiochip_irqchip_irq_valid(gc, offset)) in gpiochip_to_irq()
1434 spec.param[0] = gc->irq.child_offset_to_irq(gc, offset); in gpiochip_to_irq()
1446 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_reqres() local
1448 return gpiochip_reqres_irq(gc, d->hwirq); in gpiochip_irq_reqres()
1453 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_relres() local
1455 gpiochip_relres_irq(gc, d->hwirq); in gpiochip_irq_relres()
1460 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_mask() local
1462 if (gc->irq.irq_mask) in gpiochip_irq_mask()
1463 gc->irq.irq_mask(d); in gpiochip_irq_mask()
1464 gpiochip_disable_irq(gc, d->hwirq); in gpiochip_irq_mask()
1469 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_unmask() local
1471 gpiochip_enable_irq(gc, d->hwirq); in gpiochip_irq_unmask()
1472 if (gc->irq.irq_unmask) in gpiochip_irq_unmask()
1473 gc->irq.irq_unmask(d); in gpiochip_irq_unmask()
1478 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_enable() local
1480 gpiochip_enable_irq(gc, d->hwirq); in gpiochip_irq_enable()
1481 gc->irq.irq_enable(d); in gpiochip_irq_enable()
1486 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_disable() local
1488 gc->irq.irq_disable(d); in gpiochip_irq_disable()
1489 gpiochip_disable_irq(gc, d->hwirq); in gpiochip_irq_disable()
1492 static void gpiochip_set_irq_hooks(struct gpio_chip *gc) in gpiochip_set_irq_hooks() argument
1494 struct irq_chip *irqchip = gc->irq.chip; in gpiochip_set_irq_hooks()
1501 if (WARN_ON(gc->irq.irq_enable)) in gpiochip_set_irq_hooks()
1510 chip_info(gc, in gpiochip_set_irq_hooks()
1516 gc->irq.irq_disable = irqchip->irq_disable; in gpiochip_set_irq_hooks()
1519 gc->irq.irq_mask = irqchip->irq_mask; in gpiochip_set_irq_hooks()
1524 gc->irq.irq_enable = irqchip->irq_enable; in gpiochip_set_irq_hooks()
1527 gc->irq.irq_unmask = irqchip->irq_unmask; in gpiochip_set_irq_hooks()
1534 * @gc: the GPIO chip to add the IRQ chip to
1538 static int gpiochip_add_irqchip(struct gpio_chip *gc, in gpiochip_add_irqchip() argument
1542 struct irq_chip *irqchip = gc->irq.chip; in gpiochip_add_irqchip()
1551 if (gc->irq.parent_handler && gc->can_sleep) { in gpiochip_add_irqchip()
1552 chip_err(gc, "you cannot have chained interrupts on a chip that may sleep\n"); in gpiochip_add_irqchip()
1556 np = gc->gpiodev->dev.of_node; in gpiochip_add_irqchip()
1557 type = gc->irq.default_type; in gpiochip_add_irqchip()
1568 if (has_acpi_companion(gc->parent) && type != IRQ_TYPE_NONE) { in gpiochip_add_irqchip()
1569 acpi_handle_warn(ACPI_HANDLE(gc->parent), in gpiochip_add_irqchip()
1574 gc->to_irq = gpiochip_to_irq; in gpiochip_add_irqchip()
1575 gc->irq.default_type = type; in gpiochip_add_irqchip()
1576 gc->irq.lock_key = lock_key; in gpiochip_add_irqchip()
1577 gc->irq.request_key = request_key; in gpiochip_add_irqchip()
1580 if (gpiochip_hierarchy_is_hierarchical(gc)) { in gpiochip_add_irqchip()
1581 int ret = gpiochip_hierarchy_add_domain(gc); in gpiochip_add_irqchip()
1586 if (gc->irq.domain_ops) in gpiochip_add_irqchip()
1587 ops = gc->irq.domain_ops; in gpiochip_add_irqchip()
1591 gc->irq.domain = irq_domain_add_simple(np, in gpiochip_add_irqchip()
1592 gc->ngpio, in gpiochip_add_irqchip()
1593 gc->irq.first, in gpiochip_add_irqchip()
1594 ops, gc); in gpiochip_add_irqchip()
1595 if (!gc->irq.domain) in gpiochip_add_irqchip()
1599 if (gc->irq.parent_handler) { in gpiochip_add_irqchip()
1600 void *data = gc->irq.parent_handler_data ?: gc; in gpiochip_add_irqchip()
1602 for (i = 0; i < gc->irq.num_parents; i++) { in gpiochip_add_irqchip()
1608 irq_set_chained_handler_and_data(gc->irq.parents[i], in gpiochip_add_irqchip()
1609 gc->irq.parent_handler, in gpiochip_add_irqchip()
1614 gpiochip_set_irq_hooks(gc); in gpiochip_add_irqchip()
1618 * gc->irq.initialized before initialization of above in gpiochip_add_irqchip()
1623 gc->irq.initialized = true; in gpiochip_add_irqchip()
1625 acpi_gpiochip_request_interrupts(gc); in gpiochip_add_irqchip()
1632 * @gc: the gpiochip to remove the irqchip from
1636 static void gpiochip_irqchip_remove(struct gpio_chip *gc) in gpiochip_irqchip_remove() argument
1638 struct irq_chip *irqchip = gc->irq.chip; in gpiochip_irqchip_remove()
1641 acpi_gpiochip_free_interrupts(gc); in gpiochip_irqchip_remove()
1643 if (irqchip && gc->irq.parent_handler) { in gpiochip_irqchip_remove()
1644 struct gpio_irq_chip *irq = &gc->irq; in gpiochip_irqchip_remove()
1653 if (gc->irq.domain) { in gpiochip_irqchip_remove()
1656 for (offset = 0; offset < gc->ngpio; offset++) { in gpiochip_irqchip_remove()
1657 if (!gpiochip_irqchip_irq_valid(gc, offset)) in gpiochip_irqchip_remove()
1660 irq = irq_find_mapping(gc->irq.domain, offset); in gpiochip_irqchip_remove()
1664 irq_domain_remove(gc->irq.domain); in gpiochip_irqchip_remove()
1673 irqchip->irq_enable = gc->irq.irq_enable; in gpiochip_irqchip_remove()
1674 irqchip->irq_disable = gc->irq.irq_disable; in gpiochip_irqchip_remove()
1677 gc->irq.irq_enable = NULL; in gpiochip_irqchip_remove()
1678 gc->irq.irq_disable = NULL; in gpiochip_irqchip_remove()
1679 gc->irq.chip = NULL; in gpiochip_irqchip_remove()
1681 gpiochip_irqchip_free_valid_mask(gc); in gpiochip_irqchip_remove()
1686 * @gc: the gpiochip to add the irqchip to
1711 int gpiochip_irqchip_add_key(struct gpio_chip *gc, in gpiochip_irqchip_add_key() argument
1722 if (!gc || !irqchip) in gpiochip_irqchip_add_key()
1725 if (!gc->parent) { in gpiochip_irqchip_add_key()
1726 chip_err(gc, "missing gpiochip .dev parent pointer\n"); in gpiochip_irqchip_add_key()
1729 gc->irq.threaded = threaded; in gpiochip_irqchip_add_key()
1730 of_node = gc->parent->of_node; in gpiochip_irqchip_add_key()
1734 * FIXME: get rid of this and use gc->parent->of_node in gpiochip_irqchip_add_key()
1737 if (gc->of_node) in gpiochip_irqchip_add_key()
1738 of_node = gc->of_node; in gpiochip_irqchip_add_key()
1748 if (has_acpi_companion(gc->parent) && type != IRQ_TYPE_NONE) { in gpiochip_irqchip_add_key()
1749 acpi_handle_warn(ACPI_HANDLE(gc->parent), in gpiochip_irqchip_add_key()
1754 gc->irq.chip = irqchip; in gpiochip_irqchip_add_key()
1755 gc->irq.handler = handler; in gpiochip_irqchip_add_key()
1756 gc->irq.default_type = type; in gpiochip_irqchip_add_key()
1757 gc->to_irq = gpiochip_to_irq; in gpiochip_irqchip_add_key()
1758 gc->irq.lock_key = lock_key; in gpiochip_irqchip_add_key()
1759 gc->irq.request_key = request_key; in gpiochip_irqchip_add_key()
1760 gc->irq.domain = irq_domain_add_simple(of_node, in gpiochip_irqchip_add_key()
1761 gc->ngpio, first_irq, in gpiochip_irqchip_add_key()
1762 &gpiochip_domain_ops, gc); in gpiochip_irqchip_add_key()
1763 if (!gc->irq.domain) { in gpiochip_irqchip_add_key()
1764 gc->irq.chip = NULL; in gpiochip_irqchip_add_key()
1768 gpiochip_set_irq_hooks(gc); in gpiochip_irqchip_add_key()
1770 acpi_gpiochip_request_interrupts(gc); in gpiochip_irqchip_add_key()
1778 * @gc: the gpiochip to add the irqchip to
1783 int gpiochip_irqchip_add_domain(struct gpio_chip *gc, in gpiochip_irqchip_add_domain() argument
1789 gc->to_irq = gpiochip_to_irq; in gpiochip_irqchip_add_domain()
1790 gc->irq.domain = domain; in gpiochip_irqchip_add_domain()
1798 static inline int gpiochip_add_irqchip(struct gpio_chip *gc, in gpiochip_add_irqchip() argument
1804 static void gpiochip_irqchip_remove(struct gpio_chip *gc) {} in gpiochip_irqchip_remove() argument
1806 static inline int gpiochip_irqchip_init_hw(struct gpio_chip *gc) in gpiochip_irqchip_init_hw() argument
1811 static inline int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_init_valid_mask() argument
1815 static inline void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_free_valid_mask() argument
1822 * @gc: the gpiochip owning the GPIO
1825 int gpiochip_generic_request(struct gpio_chip *gc, unsigned offset) in gpiochip_generic_request() argument
1828 if (list_empty(&gc->gpiodev->pin_ranges)) in gpiochip_generic_request()
1832 return pinctrl_gpio_request(gc->gpiodev->base + offset); in gpiochip_generic_request()
1838 * @gc: the gpiochip to request the gpio function for
1841 void gpiochip_generic_free(struct gpio_chip *gc, unsigned offset) in gpiochip_generic_free() argument
1844 if (list_empty(&gc->gpiodev->pin_ranges)) in gpiochip_generic_free()
1848 pinctrl_gpio_free(gc->gpiodev->base + offset); in gpiochip_generic_free()
1854 * @gc: the gpiochip owning the GPIO
1858 int gpiochip_generic_config(struct gpio_chip *gc, unsigned offset, in gpiochip_generic_config() argument
1861 return pinctrl_gpio_set_config(gc->gpiodev->base + offset, config); in gpiochip_generic_config()
1869 * @gc: the gpiochip to add the range for
1879 int gpiochip_add_pingroup_range(struct gpio_chip *gc, in gpiochip_add_pingroup_range() argument
1884 struct gpio_device *gdev = gc->gpiodev; in gpiochip_add_pingroup_range()
1889 chip_err(gc, "failed to allocate pin ranges\n"); in gpiochip_add_pingroup_range()
1895 pin_range->range.gc = gc; in gpiochip_add_pingroup_range()
1896 pin_range->range.name = gc->label; in gpiochip_add_pingroup_range()
1910 chip_dbg(gc, "created GPIO range %d->%d ==> %s PINGRP %s\n", in gpiochip_add_pingroup_range()
1922 * @gc: the gpiochip to add the range for
1937 int gpiochip_add_pin_range(struct gpio_chip *gc, const char *pinctl_name, in gpiochip_add_pin_range() argument
1942 struct gpio_device *gdev = gc->gpiodev; in gpiochip_add_pin_range()
1947 chip_err(gc, "failed to allocate pin ranges\n"); in gpiochip_add_pin_range()
1953 pin_range->range.gc = gc; in gpiochip_add_pin_range()
1954 pin_range->range.name = gc->label; in gpiochip_add_pin_range()
1962 chip_err(gc, "could not create pin range\n"); in gpiochip_add_pin_range()
1966 chip_dbg(gc, "created GPIO range %d->%d ==> %s PIN %d->%d\n", in gpiochip_add_pin_range()
1979 * @gc: the chip to remove all the mappings for
1981 void gpiochip_remove_pin_ranges(struct gpio_chip *gc) in gpiochip_remove_pin_ranges() argument
1984 struct gpio_device *gdev = gc->gpiodev; in gpiochip_remove_pin_ranges()
2003 struct gpio_chip *gc = desc->gdev->chip; in gpiod_request_commit() local
2029 if (gc->request) { in gpiod_request_commit()
2030 /* gc->request may sleep */ in gpiod_request_commit()
2033 if (gpiochip_line_is_valid(gc, offset)) in gpiod_request_commit()
2034 ret = gc->request(gc, offset); in gpiod_request_commit()
2046 if (gc->get_direction) { in gpiod_request_commit()
2047 /* gc->get_direction may sleep */ in gpiod_request_commit()
2121 struct gpio_chip *gc; in gpiod_free_commit() local
2129 gc = desc->gdev->chip; in gpiod_free_commit()
2130 if (gc && test_bit(FLAG_REQUESTED, &desc->flags)) { in gpiod_free_commit()
2131 if (gc->free) { in gpiod_free_commit()
2133 might_sleep_if(gc->can_sleep); in gpiod_free_commit()
2134 gc->free(gc, gpio_chip_hwgpio(desc)); in gpiod_free_commit()
2177 * @gc: controller managing the signal
2188 const char *gpiochip_is_requested(struct gpio_chip *gc, unsigned offset) in gpiochip_is_requested() argument
2192 if (offset >= gc->ngpio) in gpiochip_is_requested()
2195 desc = gpiochip_get_desc(gc, offset); in gpiochip_is_requested()
2207 * @gc: GPIO chip
2226 struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *gc, in gpiochip_request_own_desc() argument
2232 struct gpio_desc *desc = gpiochip_get_desc(gc, hwnum); in gpiochip_request_own_desc()
2236 chip_err(gc, "failed to get GPIO descriptor\n"); in gpiochip_request_own_desc()
2246 chip_err(gc, "setup of own GPIO %s failed\n", label); in gpiochip_request_own_desc()
2279 static int gpio_do_set_config(struct gpio_chip *gc, unsigned int offset, in gpio_do_set_config() argument
2282 if (!gc->set_config) in gpio_do_set_config()
2285 return gc->set_config(gc, offset, config); in gpio_do_set_config()
2290 struct gpio_chip *gc = desc->gdev->chip; in gpio_set_config() local
2305 return gpio_do_set_config(gc, gpio_chip_hwgpio(desc), config); in gpio_set_config()
2339 struct gpio_chip *gc; in gpiod_direction_input() local
2343 gc = desc->gdev->chip; in gpiod_direction_input()
2350 if (!gc->get && gc->direction_input) { in gpiod_direction_input()
2363 if (gc->direction_input) { in gpiod_direction_input()
2364 ret = gc->direction_input(gc, gpio_chip_hwgpio(desc)); in gpiod_direction_input()
2365 } else if (gc->get_direction && in gpiod_direction_input()
2366 (gc->get_direction(gc, gpio_chip_hwgpio(desc)) != 1)) { in gpiod_direction_input()
2385 struct gpio_chip *gc = desc->gdev->chip; in gpiod_direction_output_raw_commit() local
2394 if (!gc->set && !gc->direction_output) { in gpiod_direction_output_raw_commit()
2401 if (gc->direction_output) { in gpiod_direction_output_raw_commit()
2402 ret = gc->direction_output(gc, gpio_chip_hwgpio(desc), val); in gpiod_direction_output_raw_commit()
2405 if (gc->get_direction && in gpiod_direction_output_raw_commit()
2406 gc->get_direction(gc, gpio_chip_hwgpio(desc))) { in gpiod_direction_output_raw_commit()
2416 gc->set(gc, gpio_chip_hwgpio(desc), val); in gpiod_direction_output_raw_commit()
2529 struct gpio_chip *gc; in gpiod_set_config() local
2532 gc = desc->gdev->chip; in gpiod_set_config()
2534 return gpio_do_set_config(gc, gpio_chip_hwgpio(desc), config); in gpiod_set_config()
2566 struct gpio_chip *gc; in gpiod_set_transitory() local
2579 gc = desc->gdev->chip; in gpiod_set_transitory()
2580 if (!gc->set_config) in gpiod_set_transitory()
2586 rc = gpio_do_set_config(gc, gpio, packed); in gpiod_set_transitory()
2645 struct gpio_chip *gc; in gpiod_get_raw_value_commit() local
2649 gc = desc->gdev->chip; in gpiod_get_raw_value_commit()
2651 value = gc->get ? gc->get(gc, offset) : -EIO; in gpiod_get_raw_value_commit()
2657 static int gpio_chip_get_multiple(struct gpio_chip *gc, in gpio_chip_get_multiple() argument
2660 if (gc->get_multiple) { in gpio_chip_get_multiple()
2661 return gc->get_multiple(gc, mask, bits); in gpio_chip_get_multiple()
2662 } else if (gc->get) { in gpio_chip_get_multiple()
2665 for_each_set_bit(i, mask, gc->ngpio) { in gpio_chip_get_multiple()
2666 value = gc->get(gc, i); in gpio_chip_get_multiple()
2713 struct gpio_chip *gc = desc_array[i]->gdev->chip; in gpiod_get_array_value_complex() local
2718 if (likely(gc->ngpio <= FASTPATH_NGPIO)) { in gpiod_get_array_value_complex()
2721 mask = kmalloc_array(2 * BITS_TO_LONGS(gc->ngpio), in gpiod_get_array_value_complex()
2728 bits = mask + BITS_TO_LONGS(gc->ngpio); in gpiod_get_array_value_complex()
2729 bitmap_zero(mask, gc->ngpio); in gpiod_get_array_value_complex()
2732 WARN_ON(gc->can_sleep); in gpiod_get_array_value_complex()
2747 (desc_array[i]->gdev->chip == gc)); in gpiod_get_array_value_complex()
2749 ret = gpio_chip_get_multiple(gc, mask, bits); in gpiod_get_array_value_complex()
2887 struct gpio_chip *gc = desc->gdev->chip; in gpio_set_open_drain_value_commit() local
2891 ret = gc->direction_input(gc, offset); in gpio_set_open_drain_value_commit()
2893 ret = gc->direction_output(gc, offset, 0); in gpio_set_open_drain_value_commit()
2912 struct gpio_chip *gc = desc->gdev->chip; in gpio_set_open_source_value_commit() local
2916 ret = gc->direction_output(gc, offset, 1); in gpio_set_open_source_value_commit()
2920 ret = gc->direction_input(gc, offset); in gpio_set_open_source_value_commit()
2931 struct gpio_chip *gc; in gpiod_set_raw_value_commit() local
2933 gc = desc->gdev->chip; in gpiod_set_raw_value_commit()
2935 gc->set(gc, gpio_chip_hwgpio(desc), value); in gpiod_set_raw_value_commit()
2948 static void gpio_chip_set_multiple(struct gpio_chip *gc, in gpio_chip_set_multiple() argument
2951 if (gc->set_multiple) { in gpio_chip_set_multiple()
2952 gc->set_multiple(gc, mask, bits); in gpio_chip_set_multiple()
2957 for_each_set_bit(i, mask, gc->ngpio) in gpio_chip_set_multiple()
2958 gc->set(gc, i, test_bit(i, bits)); in gpio_chip_set_multiple()
2996 struct gpio_chip *gc = desc_array[i]->gdev->chip; in gpiod_set_array_value_complex() local
3001 if (likely(gc->ngpio <= FASTPATH_NGPIO)) { in gpiod_set_array_value_complex()
3004 mask = kmalloc_array(2 * BITS_TO_LONGS(gc->ngpio), in gpiod_set_array_value_complex()
3011 bits = mask + BITS_TO_LONGS(gc->ngpio); in gpiod_set_array_value_complex()
3012 bitmap_zero(mask, gc->ngpio); in gpiod_set_array_value_complex()
3015 WARN_ON(gc->can_sleep); in gpiod_set_array_value_complex()
3051 (desc_array[i]->gdev->chip == gc)); in gpiod_set_array_value_complex()
3054 gpio_chip_set_multiple(gc, mask, bits); in gpiod_set_array_value_complex()
3216 struct gpio_chip *gc; in gpiod_to_irq() local
3227 gc = desc->gdev->chip; in gpiod_to_irq()
3229 if (gc->to_irq) { in gpiod_to_irq()
3230 int retirq = gc->to_irq(gc, offset); in gpiod_to_irq()
3239 if (gc->irq.chip) { in gpiod_to_irq()
3254 * @gc: the chip the GPIO to lock belongs to
3260 int gpiochip_lock_as_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_lock_as_irq() argument
3264 desc = gpiochip_get_desc(gc, offset); in gpiochip_lock_as_irq()
3272 if (!gc->can_sleep && gc->get_direction) { in gpiochip_lock_as_irq()
3276 chip_err(gc, "%s: cannot get GPIO direction\n", in gpiochip_lock_as_irq()
3285 chip_err(gc, in gpiochip_lock_as_irq()
3308 * @gc: the chip the GPIO to lock belongs to
3314 void gpiochip_unlock_as_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_unlock_as_irq() argument
3318 desc = gpiochip_get_desc(gc, offset); in gpiochip_unlock_as_irq()
3331 void gpiochip_disable_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_disable_irq() argument
3333 struct gpio_desc *desc = gpiochip_get_desc(gc, offset); in gpiochip_disable_irq()
3341 void gpiochip_enable_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_enable_irq() argument
3343 struct gpio_desc *desc = gpiochip_get_desc(gc, offset); in gpiochip_enable_irq()
3358 bool gpiochip_line_is_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_irq() argument
3360 if (offset >= gc->ngpio) in gpiochip_line_is_irq()
3363 return test_bit(FLAG_USED_AS_IRQ, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_irq()
3367 int gpiochip_reqres_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_reqres_irq() argument
3371 if (!try_module_get(gc->gpiodev->owner)) in gpiochip_reqres_irq()
3374 ret = gpiochip_lock_as_irq(gc, offset); in gpiochip_reqres_irq()
3376 chip_err(gc, "unable to lock HW IRQ %u for IRQ\n", offset); in gpiochip_reqres_irq()
3377 module_put(gc->gpiodev->owner); in gpiochip_reqres_irq()
3384 void gpiochip_relres_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_relres_irq() argument
3386 gpiochip_unlock_as_irq(gc, offset); in gpiochip_relres_irq()
3387 module_put(gc->gpiodev->owner); in gpiochip_relres_irq()
3391 bool gpiochip_line_is_open_drain(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_open_drain() argument
3393 if (offset >= gc->ngpio) in gpiochip_line_is_open_drain()
3396 return test_bit(FLAG_OPEN_DRAIN, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_open_drain()
3400 bool gpiochip_line_is_open_source(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_open_source() argument
3402 if (offset >= gc->ngpio) in gpiochip_line_is_open_source()
3405 return test_bit(FLAG_OPEN_SOURCE, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_open_source()
3409 bool gpiochip_line_is_persistent(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_persistent() argument
3411 if (offset >= gc->ngpio) in gpiochip_line_is_persistent()
3414 return !test_bit(FLAG_TRANSITORY, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_persistent()
3652 struct gpio_chip *gc; in gpiod_add_hogs() local
3664 gc = find_chip_by_name(hog->chip_label); in gpiod_add_hogs()
3665 if (gc) in gpiod_add_hogs()
3666 gpiochip_machine_hog(gc, hog); in gpiod_add_hogs()
3716 struct gpio_chip *gc; in gpiod_find() local
3738 gc = find_chip_by_name(p->key); in gpiod_find()
3740 if (!gc) { in gpiod_find()
3753 if (gc->ngpio <= p->chip_hwnum) { in gpiod_find()
3756 idx, p->chip_hwnum, gc->ngpio - 1, in gpiod_find()
3757 gc->label); in gpiod_find()
3761 desc = gpiochip_get_desc(gc, p->chip_hwnum); in gpiod_find()
4162 struct gpio_chip *gc; in gpiod_hog() local
4167 gc = gpiod_to_chip(desc); in gpiod_hog()
4170 local_desc = gpiochip_request_own_desc(gc, hwnum, name, in gpiod_hog()
4175 name, gc->label, hwnum, ret); in gpiod_hog()
4192 * @gc: gpio chip to act on
4194 static void gpiochip_free_hogs(struct gpio_chip *gc) in gpiochip_free_hogs() argument
4198 for (id = 0; id < gc->ngpio; id++) { in gpiochip_free_hogs()
4199 if (test_bit(FLAG_IS_HOGGED, &gc->gpiodev->descs[id].flags)) in gpiochip_free_hogs()
4200 gpiochip_free_own_desc(&gc->gpiodev->descs[id]); in gpiochip_free_hogs()
4223 struct gpio_chip *gc; in gpiod_get_array() local
4243 gc = gpiod_to_chip(desc); in gpiod_get_array()
4251 bitmap_size = BITS_TO_LONGS(gc->ngpio > count ? in gpiod_get_array()
4252 gc->ngpio : count); in gpiod_get_array()
4275 array_info->chip = gc; in gpiod_get_array()
4283 if (array_info && array_info->chip != gc) { in gpiod_get_array()
4308 if (gpiochip_line_is_open_drain(gc, descs->ndescs) || in gpiod_get_array()
4309 gpiochip_line_is_open_source(gc, descs->ndescs)) in gpiod_get_array()
4459 struct gpio_chip *gc = gdev->chip; in gpiolib_dbg_show() local
4482 gc->get ? (gc->get(gc, i) ? "hi" : "lo") : "? ", in gpiolib_dbg_show()
4534 struct gpio_chip *gc = gdev->chip; in gpiolib_seq_show() local
4537 if (!gc) { in gpiolib_seq_show()
4546 parent = gc->parent; in gpiolib_seq_show()
4551 if (gc->label) in gpiolib_seq_show()
4552 seq_printf(s, ", %s", gc->label); in gpiolib_seq_show()
4553 if (gc->can_sleep) in gpiolib_seq_show()
4557 if (gc->dbg_show) in gpiolib_seq_show()
4558 gc->dbg_show(s, gc); in gpiolib_seq_show()