linux-kernel - Re: [PATCH 1/1] dt-bindings: mtd: jedec,spi-nor: Add atmel,at26* compatible string

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Message-ID: <aDcscr4pF5vC4kNq@lizhi-Precision-Tower-5810>
Date: Wed, 28 May 2025 11:32:02 -0400
From: Frank Li <Frank.li@....com>
To: Pratyush Yadav <pratyush@...nel.org>
Cc: Tudor Ambarus <tudor.ambarus@...aro.org>,
	Michael Walle <mwalle@...nel.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>,
	Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	"open list:SPI NOR SUBSYSTEM" <linux-mtd@...ts.infradead.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>, imx@...ts.linux.dev
Subject: Re: [PATCH 1/1] dt-bindings: mtd: jedec,spi-nor: Add atmel,at26*
 compatible string

On Tue, May 27, 2025 at 06:13:22PM +0200, Pratyush Yadav wrote:
> On Fri, May 23 2025, Frank Li wrote:
>
> > Add atmel,at26* compatible string to fix below CHECK_DTB warning:
> >
> > arch/arm/boot/dts/nxp/vf/vf610-twr.dtb: /soc/bus@...00000/spi@...2c000/at26df081a@0:
> >     failed to match any schema with compatible: ['atmel,at26df081a']
>
> Is there any problem with setting the compatible to "jedec,spi-nor" in
> the DTS instead? If not, it would better to do that instead.

I suppose it should work. But it is quite old legancy boards. I have not
board to test it.  And dt also prefer add chip specific compatible string
before common failback compatible string in case need workaround some chip
issues.

Frank

>
> [...]
>
> --
> Regards,
> Pratyush Yadav