Hi Geert,
Thanks for the feedback.
> Subject: Re: [PATCH v3 4/4] ARM: dts: iwg23s-sbc: Enable RTC
>
> Hi Biju,
>
> On Thu, Dec 6, 2018 at 10:04 AM Biju Das <biju.das@xxxxxxxxxxxxxx> wrote:
> > Enable NXP pcf85263 real time clock for the iWave SBC based on RZ/G1C.
> >
> > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
>
> > --- a/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
> > +++ b/arch/arm/boot/dts/r8a77470-iwg23s-sbc.dts
> > @@ -84,12 +84,30 @@
> > clock-frequency = <20000000>;
> > };
> >
> > +&i2c3 {
> > + pinctrl-0 = <&i2c3_pins>;
> > + pinctrl-names = "default";
> > +
> > + status = "okay";
> > + clock-frequency = <400000>;
> > +
> > + rtc@51 {
> > + compatible = "nxp,pcf85263";
> > + reg = <0x51>;
>
> You might want to enable the optional interrupt:
I have enabled this but unfortunately it is generating 100000 of gpio interrupts during boot.
The reason is, by default this pin is configured as function(Power on reset/at u-boot).
Currently there is no function available in kernel to convert a pin from function to gpio (Similar to the issue Fab is facing for display hot plug interrupt)
May be we can add optional interrupt at a later stage, once we have a solution for converting pin from function to gpio.
Please share your opinion on this.
Regards,
Biju
[https://www2.renesas.eu/media/email/unicef.jpg]
This Christmas, instead of sending out cards, Renesas Electronics Europe have decided to support Unicef with a donation. For further details click here<https://www.unicef.org/> to find out about the valuable work they do, helping children all over the world.
We would like to take this opportunity to wish you a Merry Christmas and a prosperous New Year.
Renesas Electronics Europe Ltd, Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK. Registered in England & Wales under Registered No. 04586709.
