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From: Boris Brezillon <boris.brezillon@free-electrons.com>
To: Alban <albeu@free.fr>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-mtd@lists.infradead.org,
	Cyrille Pitchen <cyrille.pitchen@atmel.com>,
	Richard Weinberger <richard@nod.at>,
	Marek Vasut <marek.vasut@gmail.com>,
	Brian Norris <computersforpeace@gmail.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Rob Herring <robh+dt@kernel.org>,
	Maxime Ripard <maxime.ripard@free-electrons.com>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	Moritz Fischer <moritz.fischer@ettus.com>
Subject: Re: [PATCH 1/3] doc: bindings: Add bindings documentation for mtd nvmem
Date: Thu, 2 Mar 2017 21:22:20 +0100	[thread overview]
Message-ID: <20170302212220.4c3c7bef@bbrezillon> (raw)
In-Reply-To: <1488484223-844-2-git-send-email-albeu@free.fr>

On Thu,  2 Mar 2017 20:50:21 +0100
Alban <albeu@free.fr> wrote:

> Add the binding to expose MTD partitions as nvmem providers.

Looks good. Maybe you should take the case you describe in your
cover-letter into account and add an extra layer: add an nvmem sub-node
containing the nvmem cells, so that you can expose nvmem cells directly
under master MTD devices (and not only partitions). 

> 
> Signed-off-by: Alban <albeu@free.fr>
> ---
>  .../devicetree/bindings/nvmem/mtd-nvmem.txt        | 29 ++++++++++++++++++++++
>  1 file changed, 29 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt b/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt
> new file mode 100644
> index 0000000..47602f7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/mtd-nvmem.txt
> @@ -0,0 +1,29 @@
> += NVMEM in MTD =
> +
> +Config data for drivers is often stored in MTD devices. This binding
> +define how such data can be represented in device tree.
> +
> +An MTD can be defined as an NVMEM provider by adding the `nvmem-provider`
> +property to their node. Data cells can then be defined as child nodes
> +of the partition as defined in nvmem.txt.
> +
> +Example:
> +
> +	flash@0 {
> +		...
> +
> +		partition@2 {
> +			label = "art";
> +			reg = <0x7F0000 0x010000>;
> +			read-only;
> +
> +			nvmem-provider;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			eeprom@1000 {
> +				label = "wmac-eeprom";
> +				reg = <0x1000 0x1000>;
> +			};
> +		};
> +	};

  reply	other threads:[~2017-03-02 20:47 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-02 19:50 [PATCH 0/3] mtd: Add support for reading MTD devices via the nvmem API Alban
2017-03-02 19:50 ` [PATCH 1/3] doc: bindings: Add bindings documentation for mtd nvmem Alban
2017-03-02 20:22   ` Boris Brezillon [this message]
2017-03-03 12:17     ` Alban
2017-03-03 12:37       ` Boris Brezillon
2017-03-03 13:12         ` Alban
2017-03-03 11:27   ` Srinivas Kandagatla
2017-03-03 12:19     ` Boris Brezillon
2017-03-03 12:22     ` Alban
2017-03-02 19:50 ` [PATCH 2/3] mtd: Add support for reading MTD devices via the nvmem API Alban
2017-03-02 21:18   ` Boris Brezillon
2017-03-03 12:36     ` Alban
2017-03-03 13:36       ` Boris Brezillon
2017-03-03 13:57         ` Alban
2017-03-03 14:11           ` Boris Brezillon
2017-03-03 22:21             ` Richard Weinberger
2017-03-06 17:21               ` Alban
2017-03-06 19:03                 ` Richard Weinberger
2017-03-06 21:02                   ` Boris Brezillon
2017-03-03 11:23   ` Srinivas Kandagatla
2017-03-03 12:34     ` Boris Brezillon
2017-03-03 13:30       ` Alban
2017-03-03 14:03         ` Boris Brezillon
2017-03-02 19:50 ` [PATCH 3/3] nvmem: core: Allow allocating several anonymous nvmem devices Alban
2017-03-02 20:03   ` Boris Brezillon
2017-03-03  1:50     ` Moritz Fischer
2017-03-03 10:08   ` Srinivas Kandagatla

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