linux-kernel - Re: [PATCH v6 1/3] dt-bindings: mtd: partitions: support label/name only partition

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Message-ID: <20220628194455.GA863329-robh@kernel.org>
Date:   Tue, 28 Jun 2022 13:44:55 -0600
From:   Rob Herring <robh@...nel.org>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     �ecki <rafal@...ecki.pl>,
        Richard Weinberger <richard@....at>,
        linux-mtd@...ts.infradead.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        devicetree@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-kernel@...r.kernel.org,
        Vignesh Raghavendra <vigneshr@...com>
Subject: Re: [PATCH v6 1/3] dt-bindings: mtd: partitions: support label/name
 only partition

On Wed, 22 Jun 2022 03:06:26 +0200, Christian Marangi wrote:
> Document new partition nodes that declare only the label/name instead
> of the reg used to provide an OF node for partition registred at runtime
> by parsers. This is required for nvmem system to declare and detect
> nvmem-cells.
> 
> With these special partitions, the reg / offset is not required and a
> 'partition-' prefix is needed.
> The node name with the 'partition-' prefix stripped, is used to match
> the partition allocated by the parser at runtime and the parser will
> provide reg and offset of the mtd.
> If the partition to match contains invalid char for a node name, the
> label binding can be used to declare the partition name.
> 
> NVMEM will use the data from the parser and provide the NVMEM cells
> declared in the DTS, "connecting" the dynamic partition with a
> static declaration of cells in them.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> ---
>  .../bindings/mtd/partitions/partition.yaml    | 20 +++++++++++++++++--
>  1 file changed, 18 insertions(+), 2 deletions(-)
> 

Reviewed-by: Rob Herring <robh@...nel.org>