static irqreturn_t s3c_rtc_alarmirq(int irq, void *id) { struct rtc_device *rdev = id; clk_enable(rtc_clk); rtc_update_irq(rdev, 1, RTC_AF | RTC_IRQF); if (s3c_rtc_cpu_type == TYPE_S3C64XX) writeb(S3C2410_INTP_ALM, s3c_rtc_base + S3C2410_INTP); clk_disable(rtc_clk); s3c_rtc_alarm_clk_enable(false); return IRQ_HANDLED; }
/* Update control registers */ static int s3c_rtc_setaie(struct rtc_device *dev, unsigned int enabled) { unsigned int tmp; clk_enable(rtc_clk); tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; if (enabled) tmp |= S3C2410_RTCALM_ALMEN; writeb(tmp, s3c_rtc_base + S3C2410_RTCALM); clk_disable(rtc_clk); s3c_rtc_alarm_clk_enable(enabled); return 0; }