linux-kernel - Re: [PATCH 2/2] arm64: imx8mp: imx8mp-phycore-som enable spi nor

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Date:   Mon, 8 Mar 2021 09:03:54 +0100
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     Teresa Remmet <T.Remmet@...tec.de>
Cc:     "hs@...x.de" <hs@...x.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "krzk@...nel.org" <krzk@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "linux-imx@....com" <linux-imx@....com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>
Subject: Re: [PATCH 2/2] arm64: imx8mp: imx8mp-phycore-som enable spi nor

Hi Teresa, Heiko,

On 21-03-08 07:46, Teresa Remmet wrote:
> Hello Heiko,
> 
> first thanks for the patch :).
> 
> Am Montag, den 08.03.2021, 07:40 +0100 schrieb Heiko Schocher:
> > enable the mt25qu256aba spi nor on the imx8mp-phycore-som.
> > 
> > Signed-off-by: Heiko Schocher <hs@...x.de>
> > ---
> > 
> >  .../dts/freescale/imx8mp-phycore-som.dtsi     | 27
> > +++++++++++++++++++
> >  1 file changed, 27 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phycore-som.dtsi
> > b/arch/arm64/boot/dts/freescale/imx8mp-phycore-som.dtsi
> > index 44a8c2337cee4..0284e7a5c6bba 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp-phycore-som.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-phycore-som.dtsi
> > @@ -65,6 +65,22 @@ ethphy1: ethernet-phy@0 {
> >  	};
> >  };
> >  
> > +&flexspi {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_flexspi0>;
> > +	status = "okay";
> > +
> > +	flash0: mt25qu256aba@0 {
> 
> you can remove the label. As it is not used here right now.

I would keep the label since most the time the bootloaders will fixup
the device tree because they adding a of-partition to it. It's mostly
just a matter of time.

> Also rename the node name to device type like "flash" maybe.

+1

I would name it 'som_flash: flash@0 { }'

Regards,
  Marco