linux-kernel - RE: [EXT] [PATCH v2 04/16] ARM: dts: ls1021a-qds: Add node for QSPI flash

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Date:   Mon, 4 Oct 2021 05:53:45 +0000
From:   Kuldeep Singh <kuldeep.singh@....com>
To:     Leo Li <leoyang.li@....com>
CC:     Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Oleksij Rempel <linux@...pel-privat.de>,
        "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] [PATCH v2 04/16] ARM: dts: ls1021a-qds: Add node for QSPI
 flash

> -----Original Message-----
> From: Li Yang <leoyang.li@....com>
> Sent: Saturday, October 2, 2021 1:38 AM
> To: Kuldeep Singh <kuldeep.singh@....com>
> Cc: Shawn Guo <shawnguo@...nel.org>; Rob Herring <robh+dt@...nel.org>;
> devicetree@...r.kernel.org; Oleksij Rempel <linux@...pel-privat.de>; linux-
> arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org
> Subject: Re: [EXT] [PATCH v2 04/16] ARM: dts: ls1021a-qds: Add node for
> QSPI flash
> 
> Caution: EXT Email
> 
> On Fri, Oct 1, 2021 at 12:30 AM Kuldeep Singh <kuldeep.singh@....com>
> wrote:
> >
> > Hi Leo,
> >
> > > -----Original Message-----
> > > From: Li Yang <leoyang.li@....com>
> > > Sent: Friday, October 1, 2021 5:34 AM
> > > To: Shawn Guo <shawnguo@...nel.org>; Rob Herring
> > > <robh+dt@...nel.org>; devicetree@...r.kernel.org; Oleksij Rempel
> > > <linux@...pel-privat.de>; linux-arm-kernel@...ts.infradead.org;
> > > linux- kernel@...r.kernel.org
> > > Cc: Leo Li <leoyang.li@....com>
> > > Subject: [EXT] [PATCH v2 04/16] ARM: dts: ls1021a-qds: Add node for
> > > QSPI flash
> > >
> > > Caution: EXT Email
> > >
> > > Add the missing node for qspi flash.
> > >
> > > Signed-off-by: Li Yang <leoyang.li@....com>
> > > ---
> > >  arch/arm/boot/dts/ls1021a-qds.dts | 15 +++++++++++++++
> > >  1 file changed, 15 insertions(+)
> > >
> > > diff --git a/arch/arm/boot/dts/ls1021a-qds.dts
> > > b/arch/arm/boot/dts/ls1021a-qds.dts
> > > index e2aa569ff404..522e1dc51059 100644
> > > --- a/arch/arm/boot/dts/ls1021a-qds.dts
> > > +++ b/arch/arm/boot/dts/ls1021a-qds.dts
> > > @@ -286,6 +286,21 @@ tbi0: tbi-phy@8 {
> > >         };
> > >  };
> > >
> > > +&qspi {
> > > +       num-cs = <2>;
> >
> > Please drop "num-cs" property as it is not used by qspi driver.
> >
> > > +       status = "okay";
> > > +
> > > +       qflash0: flash@0 {
> >
> > Can we have flash chip name instead of qflash?
> > There is no hard requirement, it will help in aligning node properties with
> other board properties such as LX2160A-RDB, LS1046A-RDB etc.
> 
> Thanks for the review.  I find that there is no reference to the label at all.  I
> don't know why we added it in the first place.  Probably we can just remove it?

I believe yes, though I haven't checked it but I think it's safe to remove label and keep only flash@0.

Regards
Kuldeep