83 static int gpiochip_add_irqchip(struct gpio_chip *gpiochip,
86 static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip);
87 static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip);
88 static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip);
362 static int gpiochip_init_valid_mask(struct gpio_chip *gpiochip)  in gpiochip_init_valid_mask()  argument
366 	struct device_node *np = gpiochip->of_node;  in gpiochip_init_valid_mask()
370 		gpiochip->need_valid_mask = true;  in gpiochip_init_valid_mask()
373 	if (!gpiochip->need_valid_mask)  in gpiochip_init_valid_mask()
376 	gpiochip->valid_mask = gpiochip_allocate_mask(gpiochip);  in gpiochip_init_valid_mask()
377 	if (!gpiochip->valid_mask)  in gpiochip_init_valid_mask()
383 static void gpiochip_free_valid_mask(struct gpio_chip *gpiochip)  in gpiochip_free_valid_mask()  argument
385 	kfree(gpiochip->valid_mask);  in gpiochip_free_valid_mask()
386 	gpiochip->valid_mask = NULL;  in gpiochip_free_valid_mask()
389 bool gpiochip_line_is_valid(const struct gpio_chip *gpiochip,  in gpiochip_line_is_valid()  argument
393 	if (likely(!gpiochip->valid_mask))  in gpiochip_line_is_valid()
395 	return test_bit(offset, gpiochip->valid_mask);  in gpiochip_line_is_valid()
1619 static int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip)  in gpiochip_irqchip_init_valid_mask()  argument
1621 	if (!gpiochip->irq.need_valid_mask)  in gpiochip_irqchip_init_valid_mask()
1624 	gpiochip->irq.valid_mask = gpiochip_allocate_mask(gpiochip);  in gpiochip_irqchip_init_valid_mask()
1625 	if (!gpiochip->irq.valid_mask)  in gpiochip_irqchip_init_valid_mask()
1631 static void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip)  in gpiochip_irqchip_free_valid_mask()  argument
1633 	kfree(gpiochip->irq.valid_mask);  in gpiochip_irqchip_free_valid_mask()
1634 	gpiochip->irq.valid_mask = NULL;  in gpiochip_irqchip_free_valid_mask()
1637 bool gpiochip_irqchip_irq_valid(const struct gpio_chip *gpiochip,  in gpiochip_irqchip_irq_valid()  argument
1640 	if (!gpiochip_line_is_valid(gpiochip, offset))  in gpiochip_irqchip_irq_valid()
1643 	if (likely(!gpiochip->irq.valid_mask))  in gpiochip_irqchip_irq_valid()
1645 	return test_bit(offset, gpiochip->irq.valid_mask);  in gpiochip_irqchip_irq_valid()
1659 static void gpiochip_set_cascaded_irqchip(struct gpio_chip *gpiochip,  in gpiochip_set_cascaded_irqchip()  argument
1666 	if (!gpiochip->irq.domain) {  in gpiochip_set_cascaded_irqchip()
1667 		chip_err(gpiochip, "called %s before setting up irqchip\n",  in gpiochip_set_cascaded_irqchip()
1673 		if (gpiochip->can_sleep) {  in gpiochip_set_cascaded_irqchip()
1674 			chip_err(gpiochip,  in gpiochip_set_cascaded_irqchip()
1683 						 gpiochip);  in gpiochip_set_cascaded_irqchip()
1685 		gpiochip->irq.parent_irq = parent_irq;  in gpiochip_set_cascaded_irqchip()
1686 		gpiochip->irq.parents = &gpiochip->irq.parent_irq;  in gpiochip_set_cascaded_irqchip()
1687 		gpiochip->irq.num_parents = 1;  in gpiochip_set_cascaded_irqchip()
1691 	for (offset = 0; offset < gpiochip->ngpio; offset++) {  in gpiochip_set_cascaded_irqchip()
1692 		if (!gpiochip_irqchip_irq_valid(gpiochip, offset))  in gpiochip_set_cascaded_irqchip()
1694 		irq_set_parent(irq_find_mapping(gpiochip->irq.domain, offset),  in gpiochip_set_cascaded_irqchip()
1709 void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,  in gpiochip_set_chained_irqchip()  argument
1714 	if (gpiochip->irq.threaded) {  in gpiochip_set_chained_irqchip()
1715 		chip_err(gpiochip, "tried to chain a threaded gpiochip\n");  in gpiochip_set_chained_irqchip()
1719 	gpiochip_set_cascaded_irqchip(gpiochip, irqchip, parent_irq,  in gpiochip_set_chained_irqchip()
1731 void gpiochip_set_nested_irqchip(struct gpio_chip *gpiochip,  in gpiochip_set_nested_irqchip()  argument
1735 	gpiochip_set_cascaded_irqchip(gpiochip, irqchip, parent_irq,  in gpiochip_set_nested_irqchip()
1849 static int gpiochip_add_irqchip(struct gpio_chip *gpiochip,  in gpiochip_add_irqchip()  argument
1853 	struct irq_chip *irqchip = gpiochip->irq.chip;  in gpiochip_add_irqchip()
1862 	if (gpiochip->irq.parent_handler && gpiochip->can_sleep) {  in gpiochip_add_irqchip()
1863 		chip_err(gpiochip, "you cannot have chained interrupts on a chip that may sleep\n");  in gpiochip_add_irqchip()
1867 	np = gpiochip->gpiodev->dev.of_node;  in gpiochip_add_irqchip()
1868 	type = gpiochip->irq.default_type;  in gpiochip_add_irqchip()
1879 	if (has_acpi_companion(gpiochip->parent) && type != IRQ_TYPE_NONE) {  in gpiochip_add_irqchip()
1880 		acpi_handle_warn(ACPI_HANDLE(gpiochip->parent),  in gpiochip_add_irqchip()
1885 	gpiochip->to_irq = gpiochip_to_irq;  in gpiochip_add_irqchip()
1886 	gpiochip->irq.default_type = type;  in gpiochip_add_irqchip()
1887 	gpiochip->irq.lock_key = lock_key;  in gpiochip_add_irqchip()
1888 	gpiochip->irq.request_key = request_key;  in gpiochip_add_irqchip()
1890 	if (gpiochip->irq.domain_ops)  in gpiochip_add_irqchip()
1891 		ops = gpiochip->irq.domain_ops;  in gpiochip_add_irqchip()
1895 	gpiochip->irq.domain = irq_domain_add_simple(np, gpiochip->ngpio,  in gpiochip_add_irqchip()
1896 						     gpiochip->irq.first,  in gpiochip_add_irqchip()
1897 						     ops, gpiochip);  in gpiochip_add_irqchip()
1898 	if (!gpiochip->irq.domain)  in gpiochip_add_irqchip()
1911 	if (gpiochip->irq.parent_handler) {  in gpiochip_add_irqchip()
1912 		void *data = gpiochip->irq.parent_handler_data ?: gpiochip;  in gpiochip_add_irqchip()
1914 		for (i = 0; i < gpiochip->irq.num_parents; i++) {  in gpiochip_add_irqchip()
1920 			irq_set_chained_handler_and_data(gpiochip->irq.parents[i],  in gpiochip_add_irqchip()
1921 							 gpiochip->irq.parent_handler,  in gpiochip_add_irqchip()
1926 	acpi_gpiochip_request_interrupts(gpiochip);  in gpiochip_add_irqchip()
1937 static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip)  in gpiochip_irqchip_remove()  argument
1941 	acpi_gpiochip_free_interrupts(gpiochip);  in gpiochip_irqchip_remove()
1943 	if (gpiochip->irq.chip && gpiochip->irq.parent_handler) {  in gpiochip_irqchip_remove()
1944 		struct gpio_irq_chip *irq = &gpiochip->irq;  in gpiochip_irqchip_remove()
1953 	if (gpiochip->irq.domain) {  in gpiochip_irqchip_remove()
1956 		for (offset = 0; offset < gpiochip->ngpio; offset++) {  in gpiochip_irqchip_remove()
1957 			if (!gpiochip_irqchip_irq_valid(gpiochip, offset))  in gpiochip_irqchip_remove()
1960 			irq = irq_find_mapping(gpiochip->irq.domain, offset);  in gpiochip_irqchip_remove()
1964 		irq_domain_remove(gpiochip->irq.domain);  in gpiochip_irqchip_remove()
1967 	if (gpiochip->irq.chip) {  in gpiochip_irqchip_remove()
1968 		gpiochip->irq.chip->irq_request_resources = NULL;  in gpiochip_irqchip_remove()
1969 		gpiochip->irq.chip->irq_release_resources = NULL;  in gpiochip_irqchip_remove()
1970 		gpiochip->irq.chip = NULL;  in gpiochip_irqchip_remove()
1973 	gpiochip_irqchip_free_valid_mask(gpiochip);  in gpiochip_irqchip_remove()
2003 int gpiochip_irqchip_add_key(struct gpio_chip *gpiochip,  in gpiochip_irqchip_add_key()  argument
2014 	if (!gpiochip || !irqchip)  in gpiochip_irqchip_add_key()
2017 	if (!gpiochip->parent) {  in gpiochip_irqchip_add_key()
2021 	gpiochip->irq.threaded = threaded;  in gpiochip_irqchip_add_key()
2022 	of_node = gpiochip->parent->of_node;  in gpiochip_irqchip_add_key()
2029 	if (gpiochip->of_node)  in gpiochip_irqchip_add_key()
2030 		of_node = gpiochip->of_node;  in gpiochip_irqchip_add_key()
2040 	if (has_acpi_companion(gpiochip->parent) && type != IRQ_TYPE_NONE) {  in gpiochip_irqchip_add_key()
2041 		acpi_handle_warn(ACPI_HANDLE(gpiochip->parent),  in gpiochip_irqchip_add_key()
2046 	gpiochip->irq.chip = irqchip;  in gpiochip_irqchip_add_key()
2047 	gpiochip->irq.handler = handler;  in gpiochip_irqchip_add_key()
2048 	gpiochip->irq.default_type = type;  in gpiochip_irqchip_add_key()
2049 	gpiochip->to_irq = gpiochip_to_irq;  in gpiochip_irqchip_add_key()
2050 	gpiochip->irq.lock_key = lock_key;  in gpiochip_irqchip_add_key()
2051 	gpiochip->irq.request_key = request_key;  in gpiochip_irqchip_add_key()
2052 	gpiochip->irq.domain = irq_domain_add_simple(of_node,  in gpiochip_irqchip_add_key()
2053 					gpiochip->ngpio, first_irq,  in gpiochip_irqchip_add_key()
2054 					&gpiochip_domain_ops, gpiochip);  in gpiochip_irqchip_add_key()
2055 	if (!gpiochip->irq.domain) {  in gpiochip_irqchip_add_key()
2056 		gpiochip->irq.chip = NULL;  in gpiochip_irqchip_add_key()
2070 	acpi_gpiochip_request_interrupts(gpiochip);  in gpiochip_irqchip_add_key()
2078 static inline int gpiochip_add_irqchip(struct gpio_chip *gpiochip,  in gpiochip_add_irqchip()  argument
2085 static void gpiochip_irqchip_remove(struct gpio_chip *gpiochip) {}  in gpiochip_irqchip_remove()  argument
2086 static inline int gpiochip_irqchip_init_valid_mask(struct gpio_chip *gpiochip)  in gpiochip_irqchip_init_valid_mask()  argument
2090 static inline void gpiochip_irqchip_free_valid_mask(struct gpio_chip *gpiochip)  in gpiochip_irqchip_free_valid_mask()  argument