vchiq_doorbell_irq 69 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c vchiq_doorbell_irq(int irq, void *dev_id); vchiq_doorbell_irq 147 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c err = devm_request_irq(dev, irq, vchiq_doorbell_irq, IRQF_IRQPOLL,