Lines Matching full:gc
80 static void gpiochip_free_hogs(struct gpio_chip *gc);
81 static int gpiochip_add_irqchip(struct gpio_chip *gc,
84 static void gpiochip_irqchip_remove(struct gpio_chip *gc);
85 static int gpiochip_irqchip_init_hw(struct gpio_chip *gc);
86 static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gc);
87 static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gc);
131 * @gc: GPIO chip
138 struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc, in gpiochip_get_desc() argument
141 struct gpio_device *gdev = gc->gpiodev; in gpiochip_get_desc()
213 struct gpio_chip *gc; in gpiod_get_direction() local
217 gc = gpiod_to_chip(desc); in gpiod_get_direction()
228 if (!gc->get_direction) in gpiod_get_direction()
231 ret = gc->get_direction(gc, offset); in gpiod_get_direction()
331 * Take the names from gc->names and assign them to their GPIO descriptors.
338 static int gpiochip_set_desc_names(struct gpio_chip *gc) in gpiochip_set_desc_names() argument
340 struct gpio_device *gdev = gc->gpiodev; in gpiochip_set_desc_names()
344 for (i = 0; i != gc->ngpio; ++i) { in gpiochip_set_desc_names()
347 gpio = gpio_name_to_desc(gc->names[i]); in gpiochip_set_desc_names()
351 gc->names[i]); in gpiochip_set_desc_names()
355 for (i = 0; i != gc->ngpio; ++i) in gpiochip_set_desc_names()
356 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()
519 static void gpiochip_machine_hog(struct gpio_chip *gc, struct gpiod_hog *hog) in gpiochip_machine_hog() argument
524 desc = gpiochip_get_desc(gc, hog->chip_hwnum); in gpiochip_machine_hog()
526 chip_err(gc, "%s: unable to get GPIO desc: %ld\n", __func__, in gpiochip_machine_hog()
537 __func__, gc->label, hog->chip_hwnum, rv); in gpiochip_machine_hog()
540 static void machine_gpiochip_add(struct gpio_chip *gc) in machine_gpiochip_add() argument
547 if (!strcmp(gc->label, hog->chip_label)) in machine_gpiochip_add()
548 gpiochip_machine_hog(gc, hog); in machine_gpiochip_add()
567 int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, in gpiochip_add_data_with_key() argument
574 int base = gc->base; in gpiochip_add_data_with_key()
585 gdev->chip = gc; in gpiochip_add_data_with_key()
586 gc->gpiodev = gdev; in gpiochip_add_data_with_key()
587 if (gc->parent) { in gpiochip_add_data_with_key()
588 gdev->dev.parent = gc->parent; in gpiochip_add_data_with_key()
589 gdev->dev.of_node = gc->parent->of_node; in gpiochip_add_data_with_key()
594 if (gc->of_node) in gpiochip_add_data_with_key()
595 gdev->dev.of_node = gc->of_node; in gpiochip_add_data_with_key()
597 gc->of_node = gdev->dev.of_node; in gpiochip_add_data_with_key()
608 if (gc->parent && gc->parent->driver) in gpiochip_add_data_with_key()
609 gdev->owner = gc->parent->driver->owner; in gpiochip_add_data_with_key()
610 else if (gc->owner) in gpiochip_add_data_with_key()
612 gdev->owner = gc->owner; in gpiochip_add_data_with_key()
616 gdev->descs = kcalloc(gc->ngpio, sizeof(gdev->descs[0]), GFP_KERNEL); in gpiochip_add_data_with_key()
622 if (gc->ngpio == 0) { in gpiochip_add_data_with_key()
623 chip_err(gc, "tried to insert a GPIO chip with zero lines\n"); in gpiochip_add_data_with_key()
628 if (gc->ngpio > FASTPATH_NGPIO) in gpiochip_add_data_with_key()
629 chip_warn(gc, "line cnt %u is greater than fast path cnt %u\n", in gpiochip_add_data_with_key()
630 gc->ngpio, FASTPATH_NGPIO); in gpiochip_add_data_with_key()
632 gdev->label = kstrdup_const(gc->label ?: "unknown", GFP_KERNEL); in gpiochip_add_data_with_key()
638 gdev->ngpio = gc->ngpio; in gpiochip_add_data_with_key()
651 base = gpiochip_find_base(gc->ngpio); in gpiochip_add_data_with_key()
663 gc->base = base; in gpiochip_add_data_with_key()
673 for (i = 0; i < gc->ngpio; i++) in gpiochip_add_data_with_key()
684 if (gc->names) in gpiochip_add_data_with_key()
685 ret = gpiochip_set_desc_names(gc); in gpiochip_add_data_with_key()
687 ret = devprop_gpiochip_set_names(gc); in gpiochip_add_data_with_key()
691 ret = gpiochip_alloc_valid_mask(gc); in gpiochip_add_data_with_key()
695 ret = of_gpiochip_add(gc); in gpiochip_add_data_with_key()
699 ret = gpiochip_init_valid_mask(gc); in gpiochip_add_data_with_key()
703 for (i = 0; i < gc->ngpio; i++) { in gpiochip_add_data_with_key()
706 if (gc->get_direction && gpiochip_line_is_valid(gc, i)) { in gpiochip_add_data_with_key()
708 &desc->flags, !gc->get_direction(gc, i)); in gpiochip_add_data_with_key()
711 &desc->flags, !gc->direction_input); in gpiochip_add_data_with_key()
715 ret = gpiochip_add_pin_ranges(gc); in gpiochip_add_data_with_key()
719 acpi_gpiochip_add(gc); in gpiochip_add_data_with_key()
721 machine_gpiochip_add(gc); in gpiochip_add_data_with_key()
723 ret = gpiochip_irqchip_init_valid_mask(gc); in gpiochip_add_data_with_key()
727 ret = gpiochip_irqchip_init_hw(gc); in gpiochip_add_data_with_key()
731 ret = gpiochip_add_irqchip(gc, lock_key, request_key); in gpiochip_add_data_with_key()
751 gpiochip_irqchip_remove(gc); in gpiochip_add_data_with_key()
753 gpiochip_irqchip_free_valid_mask(gc); in gpiochip_add_data_with_key()
755 acpi_gpiochip_remove(gc); in gpiochip_add_data_with_key()
757 gpiochip_free_hogs(gc); in gpiochip_add_data_with_key()
758 of_gpiochip_remove(gc); in gpiochip_add_data_with_key()
760 gpiochip_remove_pin_ranges(gc); in gpiochip_add_data_with_key()
761 gpiochip_free_valid_mask(gc); in gpiochip_add_data_with_key()
776 gc->label ? : "generic", ret); in gpiochip_add_data_with_key()
784 * @gc: GPIO chip
789 void *gpiochip_get_data(struct gpio_chip *gc) in gpiochip_get_data() argument
791 return gc->gpiodev->data; in gpiochip_get_data()
797 * @gc: the chip to unregister
801 void gpiochip_remove(struct gpio_chip *gc) in gpiochip_remove() argument
803 struct gpio_device *gdev = gc->gpiodev; in gpiochip_remove()
809 gpiochip_free_hogs(gc); in gpiochip_remove()
812 gpiochip_irqchip_remove(gc); in gpiochip_remove()
813 acpi_gpiochip_remove(gc); in gpiochip_remove()
814 of_gpiochip_remove(gc); in gpiochip_remove()
815 gpiochip_remove_pin_ranges(gc); in gpiochip_remove()
816 gpiochip_free_valid_mask(gc); in gpiochip_remove()
825 if (gpiochip_is_requested(gc, i)) in gpiochip_remove()
857 int (*match)(struct gpio_chip *gc, in gpiochip_find() argument
861 struct gpio_chip *gc = NULL; in gpiochip_find() local
867 gc = gdev->chip; in gpiochip_find()
873 return gc; in gpiochip_find()
877 static int gpiochip_match_name(struct gpio_chip *gc, void *data) in gpiochip_match_name() argument
881 return !strcmp(gc->label, name); in gpiochip_match_name()
895 static int gpiochip_irqchip_init_hw(struct gpio_chip *gc) in gpiochip_irqchip_init_hw() argument
897 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_irqchip_init_hw()
902 return girq->init_hw(gc); in gpiochip_irqchip_init_hw()
905 static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_init_valid_mask() argument
907 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_irqchip_init_valid_mask()
912 girq->valid_mask = gpiochip_allocate_mask(gc); in gpiochip_irqchip_init_valid_mask()
916 girq->init_valid_mask(gc, girq->valid_mask, gc->ngpio); in gpiochip_irqchip_init_valid_mask()
921 static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_free_valid_mask() argument
923 bitmap_free(gc->irq.valid_mask); in gpiochip_irqchip_free_valid_mask()
924 gc->irq.valid_mask = NULL; in gpiochip_irqchip_free_valid_mask()
927 bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gc, in gpiochip_irqchip_irq_valid() argument
930 if (!gpiochip_line_is_valid(gc, offset)) in gpiochip_irqchip_irq_valid()
933 if (likely(!gc->irq.valid_mask)) in gpiochip_irqchip_irq_valid()
935 return test_bit(offset, gc->irq.valid_mask); in gpiochip_irqchip_irq_valid()
941 * @gc: the gpiochip to set the irqchip chain to
948 static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gc, in gpiochip_set_cascaded_irqchip() argument
952 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_set_cascaded_irqchip()
953 struct device *dev = &gc->gpiodev->dev; in gpiochip_set_cascaded_irqchip()
956 chip_err(gc, "called %s before setting up irqchip\n", in gpiochip_set_cascaded_irqchip()
962 if (gc->can_sleep) { in gpiochip_set_cascaded_irqchip()
963 chip_err(gc, in gpiochip_set_cascaded_irqchip()
971 chip_err(gc, "out of memory allocating parent IRQ\n"); in gpiochip_set_cascaded_irqchip()
981 gc); in gpiochip_set_cascaded_irqchip()
987 * @gc: the gpiochip to set the irqchip nested handler to
992 void gpiochip_set_nested_irqchip(struct gpio_chip *gc, in gpiochip_set_nested_irqchip() argument
996 gpiochip_set_cascaded_irqchip(gc, parent_irq, NULL); in gpiochip_set_nested_irqchip()
1005 * @gc: the gpiochip to set the irqchip hierarchical handler to
1009 static void gpiochip_set_hierarchical_irqchip(struct gpio_chip *gc, in gpiochip_set_hierarchical_irqchip() argument
1013 if (is_of_node(gc->irq.fwnode)) in gpiochip_set_hierarchical_irqchip()
1024 if (is_fwnode_irqchip(gc->irq.fwnode)) { in gpiochip_set_hierarchical_irqchip()
1028 for (i = 0; i < gc->ngpio; i++) { in gpiochip_set_hierarchical_irqchip()
1032 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_set_hierarchical_irqchip()
1040 ret = girq->child_to_parent_hwirq(gc, i, in gpiochip_set_hierarchical_irqchip()
1045 chip_err(gc, "skip set-up on hwirq %d\n", in gpiochip_set_hierarchical_irqchip()
1050 fwspec.fwnode = gc->irq.fwnode; in gpiochip_set_hierarchical_irqchip()
1052 fwspec.param[0] = girq->child_offset_to_irq(gc, i); in gpiochip_set_hierarchical_irqchip()
1056 ret = __irq_domain_alloc_irqs(gc->irq.domain, in gpiochip_set_hierarchical_irqchip()
1065 chip_err(gc, in gpiochip_set_hierarchical_irqchip()
1073 chip_err(gc, "%s unknown fwnode type proceed anyway\n", __func__); in gpiochip_set_hierarchical_irqchip()
1106 struct gpio_chip *gc = d->host_data; in gpiochip_hierarchy_irq_domain_alloc() local
1113 struct gpio_irq_chip *girq = &gc->irq; in gpiochip_hierarchy_irq_domain_alloc()
1122 ret = gc->irq.child_irq_domain_ops.translate(d, fwspec, &hwirq, &type); in gpiochip_hierarchy_irq_domain_alloc()
1126 chip_dbg(gc, "allocate IRQ %d, hwirq %lu\n", irq, hwirq); in gpiochip_hierarchy_irq_domain_alloc()
1128 ret = girq->child_to_parent_hwirq(gc, hwirq, type, in gpiochip_hierarchy_irq_domain_alloc()
1131 chip_err(gc, "can't look up hwirq %lu\n", hwirq); in gpiochip_hierarchy_irq_domain_alloc()
1134 chip_dbg(gc, "found parent hwirq %u\n", parent_hwirq); in gpiochip_hierarchy_irq_domain_alloc()
1143 gc->irq.chip, in gpiochip_hierarchy_irq_domain_alloc()
1144 gc, in gpiochip_hierarchy_irq_domain_alloc()
1150 parent_arg = girq->populate_parent_alloc_arg(gc, parent_hwirq, parent_type); in gpiochip_hierarchy_irq_domain_alloc()
1154 chip_dbg(gc, "alloc_irqs_parent for %d parent hwirq %d\n", in gpiochip_hierarchy_irq_domain_alloc()
1156 irq_set_lockdep_class(irq, gc->irq.lock_key, gc->irq.request_key); in gpiochip_hierarchy_irq_domain_alloc()
1165 chip_err(gc, in gpiochip_hierarchy_irq_domain_alloc()
1173 static unsigned int gpiochip_child_offset_to_irq_noop(struct gpio_chip *gc, in gpiochip_child_offset_to_irq_noop() argument
1195 static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc) in gpiochip_hierarchy_add_domain() argument
1197 if (!gc->irq.child_to_parent_hwirq || in gpiochip_hierarchy_add_domain()
1198 !gc->irq.fwnode) { in gpiochip_hierarchy_add_domain()
1199 chip_err(gc, "missing irqdomain vital data\n"); in gpiochip_hierarchy_add_domain()
1203 if (!gc->irq.child_offset_to_irq) in gpiochip_hierarchy_add_domain()
1204 gc->irq.child_offset_to_irq = gpiochip_child_offset_to_irq_noop; in gpiochip_hierarchy_add_domain()
1206 if (!gc->irq.populate_parent_alloc_arg) in gpiochip_hierarchy_add_domain()
1207 gc->irq.populate_parent_alloc_arg = in gpiochip_hierarchy_add_domain()
1210 gpiochip_hierarchy_setup_domain_ops(&gc->irq.child_irq_domain_ops); in gpiochip_hierarchy_add_domain()
1212 gc->irq.domain = irq_domain_create_hierarchy( in gpiochip_hierarchy_add_domain()
1213 gc->irq.parent_domain, in gpiochip_hierarchy_add_domain()
1215 gc->ngpio, in gpiochip_hierarchy_add_domain()
1216 gc->irq.fwnode, in gpiochip_hierarchy_add_domain()
1217 &gc->irq.child_irq_domain_ops, in gpiochip_hierarchy_add_domain()
1218 gc); in gpiochip_hierarchy_add_domain()
1220 if (!gc->irq.domain) in gpiochip_hierarchy_add_domain()
1223 gpiochip_set_hierarchical_irqchip(gc, gc->irq.chip); in gpiochip_hierarchy_add_domain()
1228 static bool gpiochip_hierarchy_is_hierarchical(struct gpio_chip *gc) in gpiochip_hierarchy_is_hierarchical() argument
1230 return !!gc->irq.parent_domain; in gpiochip_hierarchy_is_hierarchical()
1233 void *gpiochip_populate_parent_fwspec_twocell(struct gpio_chip *gc, in gpiochip_populate_parent_fwspec_twocell() argument
1243 fwspec->fwnode = gc->irq.parent_domain->fwnode; in gpiochip_populate_parent_fwspec_twocell()
1252 void *gpiochip_populate_parent_fwspec_fourcell(struct gpio_chip *gc, in gpiochip_populate_parent_fwspec_fourcell() argument
1262 fwspec->fwnode = gc->irq.parent_domain->fwnode; in gpiochip_populate_parent_fwspec_fourcell()
1275 static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc) in gpiochip_hierarchy_add_domain() argument
1280 static bool gpiochip_hierarchy_is_hierarchical(struct gpio_chip *gc) in gpiochip_hierarchy_is_hierarchical() argument
1300 struct gpio_chip *gc = d->host_data; in gpiochip_irq_map() local
1303 if (!gpiochip_irqchip_irq_valid(gc, hwirq)) in gpiochip_irq_map()
1306 irq_set_chip_data(irq, gc); in gpiochip_irq_map()
1311 irq_set_lockdep_class(irq, gc->irq.lock_key, gc->irq.request_key); in gpiochip_irq_map()
1312 irq_set_chip_and_handler(irq, gc->irq.chip, gc->irq.handler); in gpiochip_irq_map()
1314 if (gc->irq.threaded) in gpiochip_irq_map()
1318 if (gc->irq.num_parents == 1) in gpiochip_irq_map()
1319 ret = irq_set_parent(irq, gc->irq.parents[0]); in gpiochip_irq_map()
1320 else if (gc->irq.map) in gpiochip_irq_map()
1321 ret = irq_set_parent(irq, gc->irq.map[hwirq]); in gpiochip_irq_map()
1330 if (gc->irq.default_type != IRQ_TYPE_NONE) in gpiochip_irq_map()
1331 irq_set_irq_type(irq, gc->irq.default_type); in gpiochip_irq_map()
1339 struct gpio_chip *gc = d->host_data; in gpiochip_irq_unmap() local
1341 if (gc->irq.threaded) in gpiochip_irq_unmap()
1373 struct gpio_chip *gc = domain->host_data; in gpiochip_irq_domain_activate() local
1375 return gpiochip_lock_as_irq(gc, data->hwirq); in gpiochip_irq_domain_activate()
1391 struct gpio_chip *gc = domain->host_data; in gpiochip_irq_domain_deactivate() local
1393 return gpiochip_unlock_as_irq(gc, data->hwirq); in gpiochip_irq_domain_deactivate()
1397 static int gpiochip_to_irq(struct gpio_chip *gc, unsigned offset) in gpiochip_to_irq() argument
1399 struct irq_domain *domain = gc->irq.domain; in gpiochip_to_irq()
1401 if (!gpiochip_irqchip_irq_valid(gc, offset)) in gpiochip_to_irq()
1410 spec.param[0] = gc->irq.child_offset_to_irq(gc, offset); in gpiochip_to_irq()
1422 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_reqres() local
1424 return gpiochip_reqres_irq(gc, d->hwirq); in gpiochip_irq_reqres()
1429 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_relres() local
1431 gpiochip_relres_irq(gc, d->hwirq); in gpiochip_irq_relres()
1436 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_mask() local
1438 if (gc->irq.irq_mask) in gpiochip_irq_mask()
1439 gc->irq.irq_mask(d); in gpiochip_irq_mask()
1440 gpiochip_disable_irq(gc, d->hwirq); in gpiochip_irq_mask()
1445 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_unmask() local
1447 gpiochip_enable_irq(gc, d->hwirq); in gpiochip_irq_unmask()
1448 if (gc->irq.irq_unmask) in gpiochip_irq_unmask()
1449 gc->irq.irq_unmask(d); in gpiochip_irq_unmask()
1454 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_enable() local
1456 gpiochip_enable_irq(gc, d->hwirq); in gpiochip_irq_enable()
1457 gc->irq.irq_enable(d); in gpiochip_irq_enable()
1462 struct gpio_chip *gc = irq_data_get_irq_chip_data(d); in gpiochip_irq_disable() local
1464 gc->irq.irq_disable(d); in gpiochip_irq_disable()
1465 gpiochip_disable_irq(gc, d->hwirq); in gpiochip_irq_disable()
1468 static void gpiochip_set_irq_hooks(struct gpio_chip *gc) in gpiochip_set_irq_hooks() argument
1470 struct irq_chip *irqchip = gc->irq.chip; in gpiochip_set_irq_hooks()
1477 if (WARN_ON(gc->irq.irq_enable)) in gpiochip_set_irq_hooks()
1485 chip_info(gc, in gpiochip_set_irq_hooks()
1491 gc->irq.irq_disable = irqchip->irq_disable; in gpiochip_set_irq_hooks()
1494 gc->irq.irq_mask = irqchip->irq_mask; in gpiochip_set_irq_hooks()
1499 gc->irq.irq_enable = irqchip->irq_enable; in gpiochip_set_irq_hooks()
1502 gc->irq.irq_unmask = irqchip->irq_unmask; in gpiochip_set_irq_hooks()
1509 * @gc: the GPIO chip to add the IRQ chip to
1513 static int gpiochip_add_irqchip(struct gpio_chip *gc, in gpiochip_add_irqchip() argument
1517 struct irq_chip *irqchip = gc->irq.chip; in gpiochip_add_irqchip()
1526 if (gc->irq.parent_handler && gc->can_sleep) { in gpiochip_add_irqchip()
1527 chip_err(gc, "you cannot have chained interrupts on a chip that may sleep\n"); in gpiochip_add_irqchip()
1531 np = gc->gpiodev->dev.of_node; in gpiochip_add_irqchip()
1532 type = gc->irq.default_type; in gpiochip_add_irqchip()
1543 if (has_acpi_companion(gc->parent) && type != IRQ_TYPE_NONE) { in gpiochip_add_irqchip()
1544 acpi_handle_warn(ACPI_HANDLE(gc->parent), in gpiochip_add_irqchip()
1549 gc->to_irq = gpiochip_to_irq; in gpiochip_add_irqchip()
1550 gc->irq.default_type = type; in gpiochip_add_irqchip()
1551 gc->irq.lock_key = lock_key; in gpiochip_add_irqchip()
1552 gc->irq.request_key = request_key; in gpiochip_add_irqchip()
1555 if (gpiochip_hierarchy_is_hierarchical(gc)) { in gpiochip_add_irqchip()
1556 int ret = gpiochip_hierarchy_add_domain(gc); in gpiochip_add_irqchip()
1561 if (gc->irq.domain_ops) in gpiochip_add_irqchip()
1562 ops = gc->irq.domain_ops; in gpiochip_add_irqchip()
1566 gc->irq.domain = irq_domain_add_simple(np, in gpiochip_add_irqchip()
1567 gc->ngpio, in gpiochip_add_irqchip()
1568 gc->irq.first, in gpiochip_add_irqchip()
1569 ops, gc); in gpiochip_add_irqchip()
1570 if (!gc->irq.domain) in gpiochip_add_irqchip()
1574 if (gc->irq.parent_handler) { in gpiochip_add_irqchip()
1575 void *data = gc->irq.parent_handler_data ?: gc; in gpiochip_add_irqchip()
1577 for (i = 0; i < gc->irq.num_parents; i++) { in gpiochip_add_irqchip()
1583 irq_set_chained_handler_and_data(gc->irq.parents[i], in gpiochip_add_irqchip()
1584 gc->irq.parent_handler, in gpiochip_add_irqchip()
1589 gpiochip_set_irq_hooks(gc); in gpiochip_add_irqchip()
1591 acpi_gpiochip_request_interrupts(gc); in gpiochip_add_irqchip()
1598 * @gc: the gpiochip to remove the irqchip from
1602 static void gpiochip_irqchip_remove(struct gpio_chip *gc) in gpiochip_irqchip_remove() argument
1604 struct irq_chip *irqchip = gc->irq.chip; in gpiochip_irqchip_remove()
1607 acpi_gpiochip_free_interrupts(gc); in gpiochip_irqchip_remove()
1609 if (irqchip && gc->irq.parent_handler) { in gpiochip_irqchip_remove()
1610 struct gpio_irq_chip *irq = &gc->irq; in gpiochip_irqchip_remove()
1619 if (gc->irq.domain) { in gpiochip_irqchip_remove()
1622 for (offset = 0; offset < gc->ngpio; offset++) { in gpiochip_irqchip_remove()
1623 if (!gpiochip_irqchip_irq_valid(gc, offset)) in gpiochip_irqchip_remove()
1626 irq = irq_find_mapping(gc->irq.domain, offset); in gpiochip_irqchip_remove()
1630 irq_domain_remove(gc->irq.domain); in gpiochip_irqchip_remove()
1639 irqchip->irq_enable = gc->irq.irq_enable; in gpiochip_irqchip_remove()
1640 irqchip->irq_disable = gc->irq.irq_disable; in gpiochip_irqchip_remove()
1643 gc->irq.irq_enable = NULL; in gpiochip_irqchip_remove()
1644 gc->irq.irq_disable = NULL; in gpiochip_irqchip_remove()
1645 gc->irq.chip = NULL; in gpiochip_irqchip_remove()
1647 gpiochip_irqchip_free_valid_mask(gc); in gpiochip_irqchip_remove()
1652 * @gc: the gpiochip to add the irqchip to
1677 int gpiochip_irqchip_add_key(struct gpio_chip *gc, in gpiochip_irqchip_add_key() argument
1688 if (!gc || !irqchip) in gpiochip_irqchip_add_key()
1691 if (!gc->parent) { in gpiochip_irqchip_add_key()
1692 chip_err(gc, "missing gpiochip .dev parent pointer\n"); in gpiochip_irqchip_add_key()
1695 gc->irq.threaded = threaded; in gpiochip_irqchip_add_key()
1696 of_node = gc->parent->of_node; in gpiochip_irqchip_add_key()
1700 * FIXME: get rid of this and use gc->parent->of_node in gpiochip_irqchip_add_key()
1703 if (gc->of_node) in gpiochip_irqchip_add_key()
1704 of_node = gc->of_node; in gpiochip_irqchip_add_key()
1714 if (has_acpi_companion(gc->parent) && type != IRQ_TYPE_NONE) { in gpiochip_irqchip_add_key()
1715 acpi_handle_warn(ACPI_HANDLE(gc->parent), in gpiochip_irqchip_add_key()
1720 gc->irq.chip = irqchip; in gpiochip_irqchip_add_key()
1721 gc->irq.handler = handler; in gpiochip_irqchip_add_key()
1722 gc->irq.default_type = type; in gpiochip_irqchip_add_key()
1723 gc->to_irq = gpiochip_to_irq; in gpiochip_irqchip_add_key()
1724 gc->irq.lock_key = lock_key; in gpiochip_irqchip_add_key()
1725 gc->irq.request_key = request_key; in gpiochip_irqchip_add_key()
1726 gc->irq.domain = irq_domain_add_simple(of_node, in gpiochip_irqchip_add_key()
1727 gc->ngpio, first_irq, in gpiochip_irqchip_add_key()
1728 &gpiochip_domain_ops, gc); in gpiochip_irqchip_add_key()
1729 if (!gc->irq.domain) { in gpiochip_irqchip_add_key()
1730 gc->irq.chip = NULL; in gpiochip_irqchip_add_key()
1734 gpiochip_set_irq_hooks(gc); in gpiochip_irqchip_add_key()
1736 acpi_gpiochip_request_interrupts(gc); in gpiochip_irqchip_add_key()
1744 * @gc: the gpiochip to add the irqchip to
1749 int gpiochip_irqchip_add_domain(struct gpio_chip *gc, in gpiochip_irqchip_add_domain() argument
1755 gc->to_irq = gpiochip_to_irq; in gpiochip_irqchip_add_domain()
1756 gc->irq.domain = domain; in gpiochip_irqchip_add_domain()
1764 static inline int gpiochip_add_irqchip(struct gpio_chip *gc, in gpiochip_add_irqchip() argument
1770 static void gpiochip_irqchip_remove(struct gpio_chip *gc) {} in gpiochip_irqchip_remove() argument
1772 static inline int gpiochip_irqchip_init_hw(struct gpio_chip *gc) in gpiochip_irqchip_init_hw() argument
1777 static inline int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_init_valid_mask() argument
1781 static inline void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gc) in gpiochip_irqchip_free_valid_mask() argument
1788 * @gc: the gpiochip owning the GPIO
1791 int gpiochip_generic_request(struct gpio_chip *gc, unsigned offset) in gpiochip_generic_request() argument
1794 if (list_empty(&gc->gpiodev->pin_ranges)) in gpiochip_generic_request()
1798 return pinctrl_gpio_request(gc->gpiodev->base + offset); in gpiochip_generic_request()
1804 * @gc: the gpiochip to request the gpio function for
1807 void gpiochip_generic_free(struct gpio_chip *gc, unsigned offset) in gpiochip_generic_free() argument
1810 if (list_empty(&gc->gpiodev->pin_ranges)) in gpiochip_generic_free()
1814 pinctrl_gpio_free(gc->gpiodev->base + offset); in gpiochip_generic_free()
1820 * @gc: the gpiochip owning the GPIO
1824 int gpiochip_generic_config(struct gpio_chip *gc, unsigned offset, in gpiochip_generic_config() argument
1827 return pinctrl_gpio_set_config(gc->gpiodev->base + offset, config); in gpiochip_generic_config()
1835 * @gc: the gpiochip to add the range for
1845 int gpiochip_add_pingroup_range(struct gpio_chip *gc, in gpiochip_add_pingroup_range() argument
1850 struct gpio_device *gdev = gc->gpiodev; in gpiochip_add_pingroup_range()
1855 chip_err(gc, "failed to allocate pin ranges\n"); in gpiochip_add_pingroup_range()
1861 pin_range->range.gc = gc; in gpiochip_add_pingroup_range()
1862 pin_range->range.name = gc->label; in gpiochip_add_pingroup_range()
1876 chip_dbg(gc, "created GPIO range %d->%d ==> %s PINGRP %s\n", in gpiochip_add_pingroup_range()
1888 * @gc: the gpiochip to add the range for
1903 int gpiochip_add_pin_range(struct gpio_chip *gc, const char *pinctl_name, in gpiochip_add_pin_range() argument
1908 struct gpio_device *gdev = gc->gpiodev; in gpiochip_add_pin_range()
1913 chip_err(gc, "failed to allocate pin ranges\n"); in gpiochip_add_pin_range()
1919 pin_range->range.gc = gc; in gpiochip_add_pin_range()
1920 pin_range->range.name = gc->label; in gpiochip_add_pin_range()
1928 chip_err(gc, "could not create pin range\n"); in gpiochip_add_pin_range()
1932 chip_dbg(gc, "created GPIO range %d->%d ==> %s PIN %d->%d\n", in gpiochip_add_pin_range()
1945 * @gc: the chip to remove all the mappings for
1947 void gpiochip_remove_pin_ranges(struct gpio_chip *gc) in gpiochip_remove_pin_ranges() argument
1950 struct gpio_device *gdev = gc->gpiodev; in gpiochip_remove_pin_ranges()
1969 struct gpio_chip *gc = desc->gdev->chip; in gpiod_request_commit() local
1995 if (gc->request) { in gpiod_request_commit()
1996 /* gc->request may sleep */ in gpiod_request_commit()
1999 if (gpiochip_line_is_valid(gc, offset)) in gpiod_request_commit()
2000 ret = gc->request(gc, offset); in gpiod_request_commit()
2012 if (gc->get_direction) { in gpiod_request_commit()
2013 /* gc->get_direction may sleep */ in gpiod_request_commit()
2087 struct gpio_chip *gc; in gpiod_free_commit() local
2095 gc = desc->gdev->chip; in gpiod_free_commit()
2096 if (gc && test_bit(FLAG_REQUESTED, &desc->flags)) { in gpiod_free_commit()
2097 if (gc->free) { in gpiod_free_commit()
2099 might_sleep_if(gc->can_sleep); in gpiod_free_commit()
2100 gc->free(gc, gpio_chip_hwgpio(desc)); in gpiod_free_commit()
2143 * @gc: controller managing the signal
2154 const char *gpiochip_is_requested(struct gpio_chip *gc, unsigned offset) in gpiochip_is_requested() argument
2158 if (offset >= gc->ngpio) in gpiochip_is_requested()
2161 desc = gpiochip_get_desc(gc, offset); in gpiochip_is_requested()
2173 * @gc: GPIO chip
2192 struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *gc, in gpiochip_request_own_desc() argument
2198 struct gpio_desc *desc = gpiochip_get_desc(gc, hwnum); in gpiochip_request_own_desc()
2202 chip_err(gc, "failed to get GPIO descriptor\n"); in gpiochip_request_own_desc()
2212 chip_err(gc, "setup of own GPIO %s failed\n", label); in gpiochip_request_own_desc()
2245 static int gpio_do_set_config(struct gpio_chip *gc, unsigned int offset, in gpio_do_set_config() argument
2248 if (!gc->set_config) in gpio_do_set_config()
2251 return gc->set_config(gc, offset, config); in gpio_do_set_config()
2256 struct gpio_chip *gc = desc->gdev->chip; in gpio_set_config() local
2271 return gpio_do_set_config(gc, gpio_chip_hwgpio(desc), config); in gpio_set_config()
2305 struct gpio_chip *gc; in gpiod_direction_input() local
2309 gc = desc->gdev->chip; in gpiod_direction_input()
2316 if (!gc->get && gc->direction_input) { in gpiod_direction_input()
2329 if (gc->direction_input) { in gpiod_direction_input()
2330 ret = gc->direction_input(gc, gpio_chip_hwgpio(desc)); in gpiod_direction_input()
2331 } else if (gc->get_direction && in gpiod_direction_input()
2332 (gc->get_direction(gc, gpio_chip_hwgpio(desc)) != 1)) { in gpiod_direction_input()
2351 struct gpio_chip *gc = desc->gdev->chip; in gpiod_direction_output_raw_commit() local
2360 if (!gc->set && !gc->direction_output) { in gpiod_direction_output_raw_commit()
2367 if (gc->direction_output) { in gpiod_direction_output_raw_commit()
2368 ret = gc->direction_output(gc, gpio_chip_hwgpio(desc), val); in gpiod_direction_output_raw_commit()
2371 if (gc->get_direction && in gpiod_direction_output_raw_commit()
2372 gc->get_direction(gc, gpio_chip_hwgpio(desc))) { in gpiod_direction_output_raw_commit()
2382 gc->set(gc, gpio_chip_hwgpio(desc), val); in gpiod_direction_output_raw_commit()
2495 struct gpio_chip *gc; in gpiod_set_config() local
2498 gc = desc->gdev->chip; in gpiod_set_config()
2500 return gpio_do_set_config(gc, gpio_chip_hwgpio(desc), config); in gpiod_set_config()
2532 struct gpio_chip *gc; in gpiod_set_transitory() local
2545 gc = desc->gdev->chip; in gpiod_set_transitory()
2546 if (!gc->set_config) in gpiod_set_transitory()
2552 rc = gpio_do_set_config(gc, gpio, packed); in gpiod_set_transitory()
2611 struct gpio_chip *gc; in gpiod_get_raw_value_commit() local
2615 gc = desc->gdev->chip; in gpiod_get_raw_value_commit()
2617 value = gc->get ? gc->get(gc, offset) : -EIO; in gpiod_get_raw_value_commit()
2623 static int gpio_chip_get_multiple(struct gpio_chip *gc, in gpio_chip_get_multiple() argument
2626 if (gc->get_multiple) { in gpio_chip_get_multiple()
2627 return gc->get_multiple(gc, mask, bits); in gpio_chip_get_multiple()
2628 } else if (gc->get) { in gpio_chip_get_multiple()
2631 for_each_set_bit(i, mask, gc->ngpio) { in gpio_chip_get_multiple()
2632 value = gc->get(gc, i); in gpio_chip_get_multiple()
2679 struct gpio_chip *gc = desc_array[i]->gdev->chip; in gpiod_get_array_value_complex() local
2684 if (likely(gc->ngpio <= FASTPATH_NGPIO)) { in gpiod_get_array_value_complex()
2687 mask = kmalloc_array(2 * BITS_TO_LONGS(gc->ngpio), in gpiod_get_array_value_complex()
2694 bits = mask + BITS_TO_LONGS(gc->ngpio); in gpiod_get_array_value_complex()
2695 bitmap_zero(mask, gc->ngpio); in gpiod_get_array_value_complex()
2698 WARN_ON(gc->can_sleep); in gpiod_get_array_value_complex()
2713 (desc_array[i]->gdev->chip == gc)); in gpiod_get_array_value_complex()
2715 ret = gpio_chip_get_multiple(gc, mask, bits); in gpiod_get_array_value_complex()
2853 struct gpio_chip *gc = desc->gdev->chip; in gpio_set_open_drain_value_commit() local
2857 ret = gc->direction_input(gc, offset); in gpio_set_open_drain_value_commit()
2859 ret = gc->direction_output(gc, offset, 0); in gpio_set_open_drain_value_commit()
2878 struct gpio_chip *gc = desc->gdev->chip; in gpio_set_open_source_value_commit() local
2882 ret = gc->direction_output(gc, offset, 1); in gpio_set_open_source_value_commit()
2886 ret = gc->direction_input(gc, offset); in gpio_set_open_source_value_commit()
2897 struct gpio_chip *gc; in gpiod_set_raw_value_commit() local
2899 gc = desc->gdev->chip; in gpiod_set_raw_value_commit()
2901 gc->set(gc, gpio_chip_hwgpio(desc), value); in gpiod_set_raw_value_commit()
2914 static void gpio_chip_set_multiple(struct gpio_chip *gc, in gpio_chip_set_multiple() argument
2917 if (gc->set_multiple) { in gpio_chip_set_multiple()
2918 gc->set_multiple(gc, mask, bits); in gpio_chip_set_multiple()
2923 for_each_set_bit(i, mask, gc->ngpio) in gpio_chip_set_multiple()
2924 gc->set(gc, i, test_bit(i, bits)); in gpio_chip_set_multiple()
2962 struct gpio_chip *gc = desc_array[i]->gdev->chip; in gpiod_set_array_value_complex() local
2967 if (likely(gc->ngpio <= FASTPATH_NGPIO)) { in gpiod_set_array_value_complex()
2970 mask = kmalloc_array(2 * BITS_TO_LONGS(gc->ngpio), in gpiod_set_array_value_complex()
2977 bits = mask + BITS_TO_LONGS(gc->ngpio); in gpiod_set_array_value_complex()
2978 bitmap_zero(mask, gc->ngpio); in gpiod_set_array_value_complex()
2981 WARN_ON(gc->can_sleep); in gpiod_set_array_value_complex()
3017 (desc_array[i]->gdev->chip == gc)); in gpiod_set_array_value_complex()
3020 gpio_chip_set_multiple(gc, mask, bits); in gpiod_set_array_value_complex()
3182 struct gpio_chip *gc; in gpiod_to_irq() local
3193 gc = desc->gdev->chip; in gpiod_to_irq()
3195 if (gc->to_irq) { in gpiod_to_irq()
3196 int retirq = gc->to_irq(gc, offset); in gpiod_to_irq()
3210 * @gc: the chip the GPIO to lock belongs to
3216 int gpiochip_lock_as_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_lock_as_irq() argument
3220 desc = gpiochip_get_desc(gc, offset); in gpiochip_lock_as_irq()
3228 if (!gc->can_sleep && gc->get_direction) { in gpiochip_lock_as_irq()
3232 chip_err(gc, "%s: cannot get GPIO direction\n", in gpiochip_lock_as_irq()
3241 chip_err(gc, in gpiochip_lock_as_irq()
3264 * @gc: the chip the GPIO to lock belongs to
3270 void gpiochip_unlock_as_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_unlock_as_irq() argument
3274 desc = gpiochip_get_desc(gc, offset); in gpiochip_unlock_as_irq()
3287 void gpiochip_disable_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_disable_irq() argument
3289 struct gpio_desc *desc = gpiochip_get_desc(gc, offset); in gpiochip_disable_irq()
3297 void gpiochip_enable_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_enable_irq() argument
3299 struct gpio_desc *desc = gpiochip_get_desc(gc, offset); in gpiochip_enable_irq()
3314 bool gpiochip_line_is_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_irq() argument
3316 if (offset >= gc->ngpio) in gpiochip_line_is_irq()
3319 return test_bit(FLAG_USED_AS_IRQ, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_irq()
3323 int gpiochip_reqres_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_reqres_irq() argument
3327 if (!try_module_get(gc->gpiodev->owner)) in gpiochip_reqres_irq()
3330 ret = gpiochip_lock_as_irq(gc, offset); in gpiochip_reqres_irq()
3332 chip_err(gc, "unable to lock HW IRQ %u for IRQ\n", offset); in gpiochip_reqres_irq()
3333 module_put(gc->gpiodev->owner); in gpiochip_reqres_irq()
3340 void gpiochip_relres_irq(struct gpio_chip *gc, unsigned int offset) in gpiochip_relres_irq() argument
3342 gpiochip_unlock_as_irq(gc, offset); in gpiochip_relres_irq()
3343 module_put(gc->gpiodev->owner); in gpiochip_relres_irq()
3347 bool gpiochip_line_is_open_drain(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_open_drain() argument
3349 if (offset >= gc->ngpio) in gpiochip_line_is_open_drain()
3352 return test_bit(FLAG_OPEN_DRAIN, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_open_drain()
3356 bool gpiochip_line_is_open_source(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_open_source() argument
3358 if (offset >= gc->ngpio) in gpiochip_line_is_open_source()
3361 return test_bit(FLAG_OPEN_SOURCE, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_open_source()
3365 bool gpiochip_line_is_persistent(struct gpio_chip *gc, unsigned int offset) in gpiochip_line_is_persistent() argument
3367 if (offset >= gc->ngpio) in gpiochip_line_is_persistent()
3370 return !test_bit(FLAG_TRANSITORY, &gc->gpiodev->descs[offset].flags); in gpiochip_line_is_persistent()
3608 struct gpio_chip *gc; in gpiod_add_hogs() local
3620 gc = find_chip_by_name(hog->chip_label); in gpiod_add_hogs()
3621 if (gc) in gpiod_add_hogs()
3622 gpiochip_machine_hog(gc, hog); in gpiod_add_hogs()
3672 struct gpio_chip *gc; in gpiod_find() local
3694 gc = find_chip_by_name(p->key); in gpiod_find()
3696 if (!gc) { in gpiod_find()
3709 if (gc->ngpio <= p->chip_hwnum) { in gpiod_find()
3712 idx, p->chip_hwnum, gc->ngpio - 1, in gpiod_find()
3713 gc->label); in gpiod_find()
3717 desc = gpiochip_get_desc(gc, p->chip_hwnum); in gpiod_find()
4118 struct gpio_chip *gc; in gpiod_hog() local
4123 gc = gpiod_to_chip(desc); in gpiod_hog()
4126 local_desc = gpiochip_request_own_desc(gc, hwnum, name, in gpiod_hog()
4131 name, gc->label, hwnum, ret); in gpiod_hog()
4148 * @gc: gpio chip to act on
4150 static void gpiochip_free_hogs(struct gpio_chip *gc) in gpiochip_free_hogs() argument
4154 for (id = 0; id < gc->ngpio; id++) { in gpiochip_free_hogs()
4155 if (test_bit(FLAG_IS_HOGGED, &gc->gpiodev->descs[id].flags)) in gpiochip_free_hogs()
4156 gpiochip_free_own_desc(&gc->gpiodev->descs[id]); in gpiochip_free_hogs()
4179 struct gpio_chip *gc; in gpiod_get_array() local
4199 gc = gpiod_to_chip(desc); in gpiod_get_array()
4207 bitmap_size = BITS_TO_LONGS(gc->ngpio > count ? in gpiod_get_array()
4208 gc->ngpio : count); in gpiod_get_array()
4231 array_info->chip = gc; in gpiod_get_array()
4239 if (array_info && array_info->chip != gc) { in gpiod_get_array()
4264 if (gpiochip_line_is_open_drain(gc, descs->ndescs) || in gpiod_get_array()
4265 gpiochip_line_is_open_source(gc, descs->ndescs)) in gpiod_get_array()
4372 struct gpio_chip *gc = gdev->chip; in gpiolib_dbg_show() local
4395 gc->get ? (gc->get(gc, i) ? "hi" : "lo") : "? ", in gpiolib_dbg_show()
4447 struct gpio_chip *gc = gdev->chip; in gpiolib_seq_show() local
4450 if (!gc) { in gpiolib_seq_show()
4459 parent = gc->parent; in gpiolib_seq_show()
4464 if (gc->label) in gpiolib_seq_show()
4465 seq_printf(s, ", %s", gc->label); in gpiolib_seq_show()
4466 if (gc->can_sleep) in gpiolib_seq_show()
4470 if (gc->dbg_show) in gpiolib_seq_show()
4471 gc->dbg_show(s, gc); in gpiolib_seq_show()