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Date:   Fri, 24 Aug 2018 17:08:48 +0200
From:   Boris Brezillon <boris.brezillon@bootlin.com>
To:     Bartosz Golaszewski <brgl@bgdev.pl>
Cc:     Jonathan Corbet <corbet@lwn.net>, Sekhar Nori <nsekhar@ti.com>,
        Kevin Hilman <khilman@kernel.org>,
        Russell King <linux@armlinux.org.uk>,
        Arnd Bergmann <arnd@arndb.de>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        David Woodhouse <dwmw2@infradead.org>,
        Brian Norris <computersforpeace@gmail.com>,
        Marek Vasut <marek.vasut@gmail.com>,
        Richard Weinberger <richard@nod.at>,
        Grygorii Strashko <grygorii.strashko@ti.com>,
        "David S . Miller" <davem@davemloft.net>,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
        Naren <naren.kernel@gmail.com>,
        Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Lukas Wunner <lukas@wunner.de>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>,
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        David Lechner <david@lechnology.com>,
        Andrew Lunn <andrew@lunn.ch>, linux-doc@vger.kernel.org,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>,
        linux-mtd@lists.infradead.org, linux-i2c@vger.kernel.org,
        linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 01/29] nvmem: add support for cell lookups
Message-ID: <20180824170848.29594318@bbrezillon>
In-Reply-To: <20180810080526.27207-2-brgl@bgdev.pl>
References: <20180810080526.27207-1-brgl@bgdev.pl>
        <20180810080526.27207-2-brgl@bgdev.pl>
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Hi Bartosz,

On Fri, 10 Aug 2018 10:04:58 +0200
Bartosz Golaszewski <brgl@bgdev.pl> wrote:

> +struct nvmem_cell_lookup {
> +	struct nvmem_cell_info	info;
> +	struct list_head	list;
> +	const char		*nvmem_name;
> +};

Hm, maybe I don't get it right, but this looks suspicious. Usually the
consumer lookup table is here to attach device specific names to
external resources.

So what I'd expect here is:

struct nvmem_cell_lookup {
	/* The nvmem device name. */
	const char *nvmem_name;

	/* The nvmem cell name */
	const char *nvmem_cell_name;

	/*
	 * The local resource name. Basically what you have in the
	 * nvmem-cell-names prop.
	 */
	const char *conid;
};

struct nvmem_cell_lookup_table {
	struct list_head list;

	/* ID of the consumer device. */
	const char *devid;

	/* Array of cell lookup entries. */
	unsigned int ncells;
	const struct nvmem_cell_lookup *cells;
};

Looks like your nvmem_cell_lookup is more something used to attach cells
to an nvmem device, which is NVMEM provider's responsibility not the
consumer one.

Regards,

Boris