linux-kernel - Re: [PATCH v2 1/5] nvmem: core: allow specifying of

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Message-Id: <20210510104415.11332-1-miquel.raynal@bootlin.com>
Date:   Mon, 10 May 2021 12:44:15 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Michael Walle <michael@...le.cc>, linux-mtd@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: Re: [PATCH v2 1/5] nvmem: core: allow specifying of_node

On Sat, 2021-04-24 at 11:06:04 UTC, Michael Walle wrote:
> Until now, the of_node of the parent device is used. Some devices
> provide more than just the nvmem provider. To avoid name space clashes,
> add a way to allow specifying the nvmem cells in subnodes. Consider the
> following example:
> 
>     flash@0 {
>         compatible = "jedec,spi-nor";
> 
>         partitions {
>             compatible = "fixed-partitions";
>             #address-cells = <1>;
>             #size-cells = <1>;
> 
>             partition@0 {
>                 reg = <0x000000 0x010000>;
>             };
>         };
> 
>         otp {
>             compatible = "user-otp";
>             #address-cells = <1>;
>             #size-cells = <1>;
> 
>             serial-number@0 {
>                 reg = <0x0 0x8>;
>             };
>         };
>     };
> 
> There the nvmem provider might be the MTD partition or the OTP region of
> the flash.
> 
> Add a new config->of_node parameter, which if set, will be used instead
> of the parent's of_node.
> 
> Signed-off-by: Michael Walle <michael@...le.cc>
> Acked-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.

Miquel