linux-kernel - Re: [PATCH 1/8] dt-bindings: block: add basic bindings for block devices

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Date: Thu, 21 Mar 2024 12:39:33 -0700
From: Bart Van Assche <bvanassche@....org>
To: Daniel Golle <daniel@...rotopia.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Ulf Hansson <ulf.hansson@...aro.org>,
 Jens Axboe <axboe@...nel.dk>, Dave Chinner <dchinner@...hat.com>,
 Jan Kara <jack@...e.cz>, Thomas Weißschuh
 <linux@...ssschuh.net>, Damien Le Moal <dlemoal@...nel.org>,
 Li Lingfeng <lilingfeng3@...wei.com>, Christian Brauner
 <brauner@...nel.org>, Christian Heusel <christian@...sel.eu>,
 Min Li <min15.li@...sung.com>, Adrian Hunter <adrian.hunter@...el.com>,
 Avri Altman <avri.altman@....com>, Hannes Reinecke <hare@...e.de>,
 Christian Loehle <CLoehle@...erstone.com>, Bean Huo <beanhuo@...ron.com>,
 Yeqi Fu <asuk4.q@...il.com>, Victor Shih <victor.shih@...esyslogic.com.tw>,
 Christophe JAILLET <christophe.jaillet@...adoo.fr>,
 Dominique Martinet <dominique.martinet@...ark-techno.com>,
 "Ricardo B. Marliere" <ricardo@...liere.net>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
 linux-block@...r.kernel.org
Subject: Re: [PATCH 1/8] dt-bindings: block: add basic bindings for block
 devices

On 3/21/24 12:32, Daniel Golle wrote:
> +$id: http://devicetree.org/schemas/block/partition.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Partition on a block device
> +
> +description: |
> +  This binding describes a partition on a block device.
> +  Partitions may be matched by a combination of partition number, name,
> +  and UUID.
> +
> +maintainers:
> +  - Daniel Golle <daniel@...rotopia.org>
> +
> +properties:
> +  $nodename:
> +    pattern: '^block-partition-.+$'
> +
> +  partnum:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      Matches partition by number if present.
> +
> +  partname:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description:
> +      Matches partition by PARTNAME if present.
> +
> +  partuuid:
> +    $ref: /schemas/types.yaml#/definitions/string
> +    description:
> +      Matches partition by PARTUUID if present.
> +
> +  nvmem-layout:
> +    $ref: /schemas/nvmem/layouts/nvmem-layout.yaml#
> +    description:
> +      This container may reference an NVMEM layout parser.

Does the above imply that only systems with a single block device are
supported?

Supporting partition numbers seems unfortunate to me. Partition numbers
will change if the partition scheme changes.

Bart.