linux-kernel - Re: [EXT] Re: [PATCH v4 1/1] arm64: dts: imx93-11x11-evk: add rtc PCF2131 support

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Date: Wed, 24 Apr 2024 10:59:55 +0200
From: Marco Felsch <m.felsch@...gutronix.de>
To: Joy Zou <joy.zou@....com>
Cc: Frank Li <frank.li@....com>, Jacky Bai <ping.bai@....com>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
	"conor+dt@...nel.org" <conor+dt@...nel.org>,
	"shawnguo@...nel.org" <shawnguo@...nel.org>,
	"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
	"kernel@...gutronix.de" <kernel@...gutronix.de>,
	"festevam@...il.com" <festevam@...il.com>,
	dl-linux-imx <linux-imx@....com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [EXT] Re: [PATCH v4 1/1] arm64: dts: imx93-11x11-evk: add rtc
 PCF2131 support

On 24-04-24, Joy Zou wrote:
> 
> > -----Original Message-----
> > From: Marco Felsch <m.felsch@...gutronix.de>
> > Sent: 2024年4月17日 12:57
> > To: Joy Zou <joy.zou@....com>
> > Cc: Frank Li <frank.li@....com>; Jacky Bai <ping.bai@....com>;
> > robh+dt@...nel.org; krzysztof.kozlowski+dt@...aro.org;
> > conor+dt@...nel.org; shawnguo@...nel.org; s.hauer@...gutronix.de;
> > kernel@...gutronix.de; festevam@...il.com; dl-linux-imx
> > <linux-imx@....com>; devicetree@...r.kernel.org; imx@...ts.linux.dev;
> > linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org
> > Subject: [EXT] Re: [PATCH v4 1/1] arm64: dts: imx93-11x11-evk: add rtc
> > PCF2131 support
> > 
> > 
> > Hi Joy,
> > > diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> > > b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> > > index 07e85a30a25f..bc3c9271d747 100644
> > > --- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> > > +++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
> > > @@ -281,6 +281,23 @@ ldo5: LDO5 {
> > >       };
> > >  };
> > >
> > > +&lpi2c3 {
> > > +     #address-cells = <1>;
> > > +     #size-cells = <0>;
> > 
> > while reading your patch I also noticed that you had to specify these cells
> > here. It is very common to specify it within the base dtsi file imx93.dtsi. Can
> > you please provde an extra patch which adds this to the base dtsi followed by
> > this patch, which of course do need to specify it again.
> > 
> > Thanks you,
> >   Marco
> > 
> Thanks for your comments!
> Have checked the base dtsi file imx93.dtsi. The these cells already existed.

You're right, not sure why I didn't saw it in the first place.

> The current cells is same with the lpi2c3 node in imx93.dtsi. So should remove
> these cells in order to keep terse?

Yes please remove it.

Regards,
  Marco