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问下买回来的板子firefly-rk3288待机时异常alarm唤醒问题
发表于 2015-7-10 10:38:07
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买回来的板子发现当按下power键待机后,串口控制台上显示:
326.093288] PM: suspend entry 2013-01-21 08:55:35.293032615 UTC
[ 326.093422] PM: Syncing filesystems ... done.
[ 326.124471] Freezing user space processes ... (elapsed 0.004 seconds) done.
[ 326.129253] Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done.
[ 326.132616] Suspending console(s) (use no_console_suspend to debug)
01-armoff-logdp-osc_offddrc_off2345dDd543210
系统深度睡眠后,不到一分钟又被自动唤醒了,加上调试信息是发现:
在kernel/power/suspend.c里面的suspend函数里面又执行了:
326.147402] alrm set RTC date/time 2013-01-21(1) 08:56:01
[ 326.149329] start_alarm----294
奇怪我没设置alarm,怎么会在这个地方又设置了alarm唤醒闹钟啊?
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