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h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=y6R3bK3NsSGu68vXayq2WfqZZ9Uy4g07o50EORmeW7Q=; b=iQD5zYRBxcME416I7SmtNcFWEd2Ph4AghuwHTrsvEXUIAUpSlSg63+vZgiqmM5hNxMR8kD 0hGaOe8ipcYTw7ZniV3/kObGtOMjBvfNC/quDAMx+xCK4oZyYMQBZ4W9Qy2WBQTOgzrdHo bYkyH/TzoV9rKMm7Oz7Fa7JR5Cc5Q88I3f9LXEcfJimb+SXfZrAcB0z/4Cai3tmmh5MuVL ibz6Pnh4/tidD4DXjMba6iidUVQ20l6pjDRF+q1BE7rzNUJPY43kbKyR+i6myw49N0Q1mo ccgF5HnUdvNBVomT2QmPjhzobhX7WZyHqIm4CpZPr56IHXBv5/LXCfkGROnVCg== Date: Thu, 10 Nov 2022 09:50:34 +0100 From: Miquel Raynal To: Rob Herring Cc: Krzysztof Kozlowski , devicetree@vger.kernel.org, Srinivas Kandagatla , linux-kernel@vger.kernel.org, Robert Marko , Luka Perkov , Thomas Petazzoni , Michael Walle , linux-arm-kernel@lists.infradead.org, Bartosz Golaszewski , Christian Eggers , Cory Tusar Subject: Re: [PATCH v3 6/6] dt-bindings: nvmem: add YAML schema for the ONIE tlv layout Message-ID: <20221110095034.7a80163a@xps-13> In-Reply-To: <20221110040055.GA3436769-robh@kernel.org> References: <20221104163833.1289857-1-miquel.raynal@bootlin.com> <20221104163833.1289857-7-miquel.raynal@bootlin.com> <20221110040055.GA3436769-robh@kernel.org> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221110_005044_302291_FE09D252 X-CRM114-Status: GOOD ( 23.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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lindbergh.monkeyblade.net (Postfix) with ESMTPS id F39616582; Thu, 10 Nov 2022 00:50:40 -0800 (PST) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id EFCE3C000D; Thu, 10 Nov 2022 08:50:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1668070239; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=y6R3bK3NsSGu68vXayq2WfqZZ9Uy4g07o50EORmeW7Q=; b=iQD5zYRBxcME416I7SmtNcFWEd2Ph4AghuwHTrsvEXUIAUpSlSg63+vZgiqmM5hNxMR8kD 0hGaOe8ipcYTw7ZniV3/kObGtOMjBvfNC/quDAMx+xCK4oZyYMQBZ4W9Qy2WBQTOgzrdHo bYkyH/TzoV9rKMm7Oz7Fa7JR5Cc5Q88I3f9LXEcfJimb+SXfZrAcB0z/4Cai3tmmh5MuVL ibz6Pnh4/tidD4DXjMba6iidUVQ20l6pjDRF+q1BE7rzNUJPY43kbKyR+i6myw49N0Q1mo ccgF5HnUdvNBVomT2QmPjhzobhX7WZyHqIm4CpZPr56IHXBv5/LXCfkGROnVCg== Date: Thu, 10 Nov 2022 09:50:34 +0100 From: Miquel Raynal To: Rob Herring Cc: Krzysztof Kozlowski , devicetree@vger.kernel.org, Srinivas Kandagatla , linux-kernel@vger.kernel.org, Robert Marko , Luka Perkov , Thomas Petazzoni , Michael Walle , linux-arm-kernel@lists.infradead.org, Bartosz Golaszewski , Christian Eggers , Cory Tusar Subject: Re: [PATCH v3 6/6] dt-bindings: nvmem: add YAML schema for the ONIE tlv layout Message-ID: <20221110095034.7a80163a@xps-13> In-Reply-To: <20221110040055.GA3436769-robh@kernel.org> References: <20221104163833.1289857-1-miquel.raynal@bootlin.com> <20221104163833.1289857-7-miquel.raynal@bootlin.com> <20221110040055.GA3436769-robh@kernel.org> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Rob, robh@kernel.org wrote on Wed, 9 Nov 2022 22:00:55 -0600: > On Fri, Nov 04, 2022 at 05:38:33PM +0100, Miquel Raynal wrote: > > Add a schema for the ONIE tlv NVMEM layout that can be found on any ONIE > > compatible networking device. > >=20 > > Signed-off-by: Miquel Raynal > > --- > > .../bindings/nvmem/layouts/nvmem-layout.yaml | 1 + > > .../nvmem/layouts/onie,tlv-layout.yaml | 115 ++++++++++++++++++ > > 2 files changed, 116 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/nvmem/layouts/oni= e,tlv-layout.yaml > >=20 > > diff --git a/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layo= ut.yaml b/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml > > index f64ea2fa362d..8512ee538c4c 100644 > > --- a/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml > > +++ b/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml > > @@ -19,6 +19,7 @@ description: | > > =20 > > oneOf: > > - $ref: kontron,sl28-vpd.yaml > > + - $ref: onie,tlv-layout.yaml > > =20 > > properties: > > compatible: true > > diff --git a/Documentation/devicetree/bindings/nvmem/layouts/onie,tlv-l= ayout.yaml b/Documentation/devicetree/bindings/nvmem/layouts/onie,tlv-layou= t.yaml > > new file mode 100644 > > index 000000000000..1d91277324ac > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/nvmem/layouts/onie,tlv-layout.y= aml > > @@ -0,0 +1,115 @@ > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/nvmem/layouts/onie,tlv-layout.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: NVMEM layout of the ONIE tlv table > > + > > +maintainers: > > + - Miquel Raynal > > + > > +description: > > + Modern networking hardware implementing the Open Compute Project ONIE > > + infrastructure shall provide a non-volatile memory with a table whos= e the > > + content is well specified and gives many information about the manuf= acturer > > + (name, country of manufacture, etc) as well as device caracteristics= (serial > > + number, hardware version, mac addresses, etc). The underlaying devic= e type > > + (flash, EEPROM,...) is not specified. The exact location of each val= ue is also > > + dynamic and should be discovered at run time because it depends on t= he > > + parameters the manufacturer decided to embed. > > + > > +properties: > > + compatible: > > + const: onie,tlv-layout > > + > > + product-name: true =20 >=20 > This is a node? If so, you need: >=20 > type: object > additionalProperties: false I thought referencing a schema under a property would be enough? Indeed in nvmem.yaml we create the property nvmem-layout and make it reference nvmem-layout.yaml. Then, in nvmem-layout.yaml: oneOf: - $ref: kontron,sl28-vpd.yaml - $ref: onie,tlv-layout.yaml we reference the different layouts that may apply (very much like what you proposed to list the mtd partition parsers, if I got it right). Isn't it enough? Then if you look below there is an "additionalProperties: false" defined. > > + > > + part-number: true > > + [...] > > + service-tag: true > > + > > + vendor-extension: true > > + > > +required: > > + - compatible > > + > > +additionalProperties: false (here) > > + > > +examples: > > + - | > > + spi { > > + #address-cells =3D <1>; > > + #size-cells =3D <0>; > > + > > + eeprom@56 { > > + compatible =3D "atmel,24c64"; > > + read-only; > > + reg =3D <0x56>; > > + > > + nvmem-layout { > > + compatible =3D "onie,tlv-layout"; > > + > > + serial-number { > > + }; > > + }; > > + }; > > + }; > > + > > + - | > > + spi { > > + #address-cells =3D <1>; > > + #size-cells =3D <0>; > > + > > + flash@0 { > > + compatible =3D "m25p80", "jedec,spi-nor"; > > + reg =3D <0>; > > + > > + otp { > > + compatible =3D "user-otp"; > > + > > + nvmem-layout { > > + compatible =3D "onie,tlv-layout"; > > + > > + mac-address { > > + #nvmem-cell-cells =3D <1>; > > + }; > > + }; > > + }; > > + }; > > + }; > > +... > > --=20 > > 2.34.1 > >=20 > > =20 Thanks, Miqu=C3=A8l