acpi_bus_register_early_device 1751 drivers/acpi/ec.c 	return acpi_bus_register_early_device(ACPI_BUS_TYPE_ECDT_EC);
acpi_bus_register_early_device  117 drivers/acpi/internal.h int acpi_bus_register_early_device(int type);
acpi_bus_register_early_device 2121 drivers/acpi/scan.c EXPORT_SYMBOL_GPL(acpi_bus_register_early_device);