Re: [PATCH v2] sunxi: dts: Fix SPI NOR campatible on Orange Pi Zero

From: "Jernej Škrabec" <jernej.skrabec@gmail.com>
To: Michal Suchanek <msuchanek@suse.de>,
	Samuel Holland <samuel@sholland.org>
Cc: linux-sunxi@lists.linux.dev, Icenowy Zheng <icenowy@aosc.xyz>,
	Andre Przywara <andre.przywara@arm.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Chen-Yu Tsai <wens@csie.org>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] sunxi: dts: Fix SPI NOR campatible on Orange Pi Zero
Date: Fri, 08 Jul 2022 16:13:11 +0200	[thread overview]
Message-ID: <10106175.nUPlyArG6x@jernej-laptop> (raw)
In-Reply-To: <0c575068-abd7-c69a-e59c-3140f8cb7813@sholland.org>

Hi Michal,

sorry, but I was a bit too quick with giving r-b line. See comments below.

Dne petek, 08. julij 2022 ob 09:36:26 CEST je Samuel Holland napisal(a):
> Hi Michal,
> 
> The subject prefix should start with "ARM: dts:" (e.g. "ARM: dts: sunxi:").
> Generally it is a good idea to look at the log of the file and follow the
> pattern you see there.
> 
> On 7/7/22 12:07 PM, Michal Suchanek wrote:
> > Without "jedec,spi-nor" compatible the flash memory cannot be probed by
> > u-boot. The macronix part is what is shipped on the boards that come
> > with a flash chip.

Please reword this a bit. DT isn't user specific, so U-Boot should not be 
mentioned. But you can write about compatible being wrong. According to DT 
bindings, it should be manufacturer specific compatible, followed by 
"jedec,spi-nor".

Once both issues are addressed, you can keep my r-b tag and include fixes tag 
posted by Sameul.

Best regards,
Jernej

> 
> Fixes: 45857ae95478 ("ARM: dts: orange-pi-zero: add node for SPI NOR")
> 
> Regards,
> Samuel
> 
> > Signed-off-by: Michal Suchanek <msuchanek@suse.de>
> > ---
> > 
> >  arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
> > b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts index
> > f19ed981da9d..3706216ffb40 100644
> > --- a/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
> > +++ b/arch/arm/boot/dts/sun8i-h2-plus-orangepi-zero.dts
> > @@ -169,7 +169,7 @@ &spi0 {
> > 
> >  	flash@0 {
> >  	
> >  		#address-cells = <1>;
> >  		#size-cells = <1>;
> > 
> > -		compatible = "mxicy,mx25l1606e", "winbond,w25q128";
> > +		compatible = "mxicy,mx25l1606e", "jedec,spi-nor";
> > 
> >  		reg = <0>;
> >  		spi-max-frequency = <40000000>;
> >  	
> >  	};

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