netdev - Re: [PATCH v2 06/29] mtd: Add support for reading MTD devices via the nvmem API

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Date:   Mon, 20 Aug 2018 20:20:38 +0200
From:   Boris Brezillon <boris.brezillon@...tlin.com>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     Alban <albeu@...e.fr>, Bartosz Golaszewski <brgl@...ev.pl>,
        Jonathan Corbet <corbet@....net>, Sekhar Nori <nsekhar@...com>,
        Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Naren <naren.kernel@...il.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Lukas Wunner <lukas@...ner.de>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        Sven Van Asbroeck <svendev@...x.com>,
        Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>,
        David Lechner <david@...hnology.com>,
        Andrew Lunn <andrew@...n.ch>, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-i2c@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-omap@...r.kernel.org, netdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: Re: [PATCH v2 06/29] mtd: Add support for reading MTD devices via
 the nvmem API

On Mon, 20 Aug 2018 11:43:34 +0100
Srinivas Kandagatla <srinivas.kandagatla@...aro.org> wrote:

> 
> Overall am still not able to clear visualize on how MTD bindings with 
> nvmem cells would look in both partition and un-partition usecases?
> An example DT would be nice here!!

Something along those lines:

	mtdnode {
		nvmem-cells {
			#address-cells = <1>;
			#size-cells = <1>;

			cell@0 {
				reg = <0x0 0x14>;
			};
		};

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				reg = <0x0 0x20000>;

				nvmem-cells {
					#address-cells = <1>;
					#size-cells = <1>;

					cell@0 {
						reg = <0x0 0x10>;
					};
				};
			};
		};
	};