GPT_IRQ_ACK 156 drivers/clocksource/timer-mediatek.c writel(GPT_IRQ_ACK(timer), timer_of_base(to) + GPT_IRQ_ACK_REG); GPT_IRQ_ACK 208 drivers/clocksource/timer-mediatek.c writel(GPT_IRQ_ACK(TIMER_CLK_EVT), timer_of_base(to) + GPT_IRQ_ACK_REG);