From mboxrd@z Thu Jan  1 00:00:00 1970
From: Boris Brezillon <boris.brezillon@bootlin.com>
Subject: Re: [PATCH v2 01/29] nvmem: add support for cell lookups
Date: Fri, 24 Aug 2018 17:08:48 +0200
Message-ID: <20180824170848.29594318@bbrezillon>
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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>
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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