> El miércoles, 21 de agosto de 2019, 15:58:07 (UTC+2), Chen-Yu Tsai escribió: > > On Wed, Aug 21, 2019 at 7:54 PM Alejandro González > <[email protected] <javascript:>> wrote: > > > > > > This change exposes the needed interfaces to configure wake alarms to > > > userspace, but it doesn't let a SoC resume from a wakealarm by itself > > > (that depends on how interrupts are handled). However, it is still > > > useful for generating interrupts, it allows users to test the > wakealarm > > > setting codepath of the sun6i RTC driver, and it will allow developers > > > to test wakeup from suspend more easily. > > > > > I've tested this on a Pine H64 model B, which contains an Allwinner H6 > > > SoC, with the help of the test_suspend kernel parameter. I got these > > > results: > > > > > > [ 1.092823] PM: test RTC wakeup from 'freeze' suspend > > > [ 1.098391] PM: suspend entry (s2idle) > > > [ 1.102543] Filesystems sync: 0.000 seconds > > > [ 1.107333] Freezing user space processes ... (elapsed 0.000 > seconds) done. > > > [ 1.115061] OOM killer disabled. > > > [ 1.118621] Freezing remaining freezable tasks ... (elapsed 0.002 > seconds) done. > > > [ 1.204986] PM: suspend devices took 0.076 seconds > > > ** The kernel doesn't resume from freeze until reset. ** > > > > > > [ 1.092812] PM: test RTC wakeup from 'mem' suspend > > > [ 1.098089] PM: suspend entry (deep) > > > [ 1.102033] PM: suspend exit > > > [ 1.105205] PM: suspend test failed, error -22 > > > > > > $ echo +5 > /sys/class/rtc/rtc0/wakealarm && sleep 5 && grep rtc > /proc/interrupts > > > 29: 1 0 0 0 GICv2 133 Level > 7000000.rtc > > > > > > Signed-off-by: Alejandro González <[email protected] > <javascript:>> > > > > You need to send to this to the actual maintainers and mailing lists, > not linux-sunxi. > > > > Use scripts/get_maintainers.pl to get a list of relevant parties. > Thank you very much for the heads-up. I'll review the patch and submit it to the corresponding places.
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