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rtc.h
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rtc: Add tracepoints for RTC system It will be more helpful to add some tracepoints to track RTC actions when debugging RTC driver. Below sample is that we set/read the RTC time, then set 2 alarms, so we can see the trace logs: set/read RTC time: kworker/0:1-67 [000] 21.814245: rtc_set_time: UTC (1510301580) (0) kworker/0:1-67 [000] 21.814312: rtc_read_time: UTC (1510301580) (0) set the first alarm timer: kworker/0:1-67 [000] 21.829238: rtc_timer_enqueue: RTC timer:(ffffffc15eb49bc8) expires:1510301700000000000 period:0 kworker/0:1-67 [000] 22.018279: rtc_set_alarm: UTC (1510301700) (0) set the second alarm timer: kworker/0:1-67 [000] 22.230284: rtc_timer_enqueue: RTC timer:(ffffff80088e6430) expires:1510301820000000000 period:0 the first alarm timer was expired: kworker/0:1-67 [000] 145.155584: rtc_timer_dequeue: RTC timer:(ffffffc15eb49bc8) expires:1510301700000000000 period:0 kworker/0:1-67 [000] 145.155593: rtc_timer_fired: RTC timer:(ffffffc15eb49bc8) expires:1510301700000000000 period:0 kworker/0:1-67 [000] 145.172504: rtc_set_alarm: UTC (1510301820) (0) the second alarm timer was expired: kworker/0:1-67 [000] 269.102353: rtc_timer_dequeue: RTC timer:(ffffff80088e6430) expires:1510301820000000000 period:0 kworker/0:1-67 [000] 269.102360: rtc_timer_fired: RTC timer:(ffffff80088e6430) expires:1510301820000000000 period:0 disable alarm irq: kworker/0:1-67 [000] 269.102469: rtc_alarm_irq_enable: disable RTC alarm IRQ (0) Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2017-12-14 13:31:43 +08:00
