aic_ic_read
u32 config = aic_ic_read(irqc, AIC2_CONFIG);
WARN_ON(aic_ic_read(aic_irqc, AIC_WHOAMI) != smp_processor_id());
info = aic_ic_read(irqc, AIC_INFO);
info1 = aic_ic_read(irqc, AIC2_INFO1);
info3 = aic_ic_read(irqc, AIC2_INFO3);