PORT_IRQ_COMPLETE
writel(PORT_IRQ_COMPLETE, port + PORT_IRQ_STAT);
DEF_PORT_IRQ = PORT_IRQ_COMPLETE | PORT_IRQ_ERROR |
writel(PORT_IRQ_COMPLETE | PORT_IRQ_ERROR, port + PORT_IRQ_ENABLE_CLR);
irq_mask = (PORT_IRQ_COMPLETE | PORT_IRQ_ERROR) << PORT_IRQ_RAW_SHIFT;
if (irq_stat & PORT_IRQ_COMPLETE)