[PATCH v2 2/3] arm64: dts: meson-g12b-odroid-n2: Disable virtual RTC driver

Anand Moon linux.amoon at gmail.com
Tue Aug 18 04:15:48 EDT 2020


Hi Christian and Jerome,

Thanks for the review comments..

On Tue, 18 Aug 2020 at 13:21, Christian Hewitt
<christianshewitt at gmail.com> wrote:
>
>
>
> > On 18 Aug 2020, at 11:45 am, Jerome Brunet <jbrunet at baylibre.com> wrote:
> >
> >
> > On Mon 17 Aug 2020 at 12:21, Anand Moon <linux.amoon at gmail.com> wrote:
> >
> >> Disable virtual RTC node on Odroid N2,
> >> since RTC PCF8563 support rtc wakeup.
> >>
> >> [    7.171149] meson-vrtc ff8000a8.rtc: registered as rtc0
> >> [    7.182875] meson-vrtc ff8000a8.rtc: setting system clock to 1970-01-01T00:00:07 UTC (7)
> >>
> >
> > Maybe I'm missing something but why should disable this ?
> > Can't the 2 RTCs co-exist ?
>
> aliases {
>         serial0 = &uart_AO;
>         ethernet0 = ðmac;
>         rtc1 = &vrtc;
> };
>
> ^ adding this alias moves vrtc to /dev/rtc1 allowing the on-board rtc to
> assume /dev/rtc0 which scripts/users and HOWTO guides assume to be a
> real clock device. Tested and working fine with my own experiments with
> enabling rtc on a bunch of G12B/SM1 boards.
>
> Christian

I will drop this patch and add the alias in the next version.

-Anand



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