[PATCHv1 0/3] Enable RTC on Odroid N2

Anand Moon linux.amoon at gmail.com
Thu Jul 16 04:14:21 EDT 2020


Hi Neil,

Thanks for your review comments.

On Thu, 16 Jul 2020 at 12:35, Neil Armstrong <narmstrong at baylibre.com> wrote:
>
> Hi Anand,
>
> Only the vrtc is able to wakeup the device from suspend,
> the external RTC is not capable.
>
> Neil

Now I have two RTC driver registered

$ dmesg | grep rtc
[    4.737315] rtc-pcf8563 0-0051: registered as rtc0
[    4.738763] rtc-pcf8563 0-0051: setting system clock to
2020-07-16T08:00:46 UTC (1594886446)
[    4.790206] meson-vrtc ff8000a8.rtc: registered as rtc1

And there are two nodes
# ls /dev/rtc*
/dev/rtc  /dev/rtc0  /dev/rtc1

So it seames an issue that /dev/rtc0 is not able to handle wakeup events.
How can we resolve this issue?

# time rtcwake -s 30 -m mem
rtcwake: /dev/rtc0 not enabled for wakeup events

real    0m0.002s
user    0m0.001s
sys     0m0.002s

-Anand



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