linux-kernel - Re: [PATCH 0/5] defconfigs: add MTD_SPI

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Message-ID: <20140417105302.GA32603@ulmo>
Date:	Thu, 17 Apr 2014 12:53:03 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	Marek Vasut <marex@...x.de>, linux-mtd@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>,
	Shawn Guo <shawn.guo@...escale.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Stephen Warren <swarren@...dotorg.org>,
	Olof Johansson <olof@...om.net>,
	linux-arm-kernel@...ts.infradead.org, linux-tegra@...r.kernel.org,
	Steven Miao <realmz6@...il.com>,
	adi-buildroot-devel@...ts.sourceforge.net,
	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	linuxppc-dev@...ts.ozlabs.org, linux-sh@...r.kernel.org
Subject: Re: [PATCH 0/5] defconfigs: add MTD_SPI_NOR (dependency for M25P80)

On Thu, Apr 17, 2014 at 12:21:44AM -0700, Brian Norris wrote:
> Hi all,
> 
> We are introducing a new SPI-NOR library/framework for MTD, to support various
> types of SPI-NOR flash controllers which require (or benefit from) intimate
> knowledge of the flash interface, rather than just the relatively dumb SPI
> interface. This library borrows much of the m25p80 driver for its abstraction
> and moves this code into a spi-nor module.

If this is a common library, then the more common approach to solve this
would be to have each driver that uses it to select MTD_SPI_NOR rather
than depend on it. That way you can drop this whole series to update the
default configurations.

Thierry

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