[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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