max8997_dev 412 include/linux/mfd/max8997-private.h extern int max8997_irq_init(struct max8997_dev *max8997); max8997_dev 413 include/linux/mfd/max8997-private.h extern void max8997_irq_exit(struct max8997_dev *max8997); max8997_dev 414 include/linux/mfd/max8997-private.h extern int max8997_irq_resume(struct max8997_dev *max8997);