drivers/gpio/gpiolib-acpi.c

732 	struct acpi_gpio_lookup *lookup = data;
737 	if (!lookup->desc) {
743 		if (lookup->info.quirks & ACPI_GPIO_QUIRK_ONLY_GPIOIO && gpioint)
744 			lookup->index++;
746 		if (lookup->n++ != lookup->index)
749 		pin_index = lookup->pin_index;
753 		if (lookup->info.quirks & ACPI_GPIO_QUIRK_ABSOLUTE_NUMBER)
758 		lookup->desc = desc;
759 		lookup->info.pin_config = agpio->pin_config;
760 		lookup->info.debounce = agpio->debounce_timeout;
761 		lookup->info.gpioint = gpioint;
762 		lookup->info.wake_capable = acpi_gpio_irq_is_wake(&lookup->info.adev->dev, agpio);
771 		if (lookup->info.gpioint) {
772 			lookup->info.polarity = agpio->polarity;
773 			lookup->info.triggering = agpio->triggering;
775 			lookup->info.polarity = lookup->active_low;
778 		lookup->info.flags = acpi_gpio_to_gpiod_flags(agpio, lookup->info.polarity);
784 static int acpi_gpio_resource_lookup(struct acpi_gpio_lookup *lookup,
787 	struct acpi_device *adev = lookup->info.adev;
795 				     lookup);
801 	if (!lookup->desc)
805 		*info = lookup->info;
811 				     struct acpi_gpio_lookup *lookup)
828 	 * The property was found and resolved, so need to lookup the GPIO based
836 	lookup->index = args.args[0];
837 	lookup->pin_index = args.args[1];
838 	lookup->active_low = !!args.args[2];
840 	lookup->info.adev = to_acpi_device_node(args.fwnode);
841 	lookup->info.quirks = quirks;
873 	struct acpi_gpio_lookup lookup;
879 	memset(&lookup, 0, sizeof(lookup));
880 	lookup.index = index;
886 						propname, index, &lookup);
891 			dev_name(&lookup.info.adev->dev), lookup.index,
892 			lookup.pin_index, lookup.active_low);
895 		lookup.info.adev = adev;
898 	ret = acpi_gpio_resource_lookup(&lookup, info);
899 	return ret ? ERR_PTR(ret) : lookup.desc;
909  * This function uses the property-based GPIO lookup to get to the GPIO
921 	struct acpi_gpio_lookup lookup;
930 	memset(&lookup, 0, sizeof(lookup));
931 	lookup.index = index;
933 	ret = acpi_gpio_property_lookup(fwnode, propname, index, &lookup);
937 	ret = acpi_gpio_resource_lookup(&lookup, info);
938 	return ret ? ERR_PTR(ret) : lookup.desc;
997 		dev_dbg(&adev->dev, "refusing GpioInt() entry when doing GPIOD_OUT_* lookup\n");