linux-kernel - Re: MTD EEPROM support and driver integration

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Date:	Sat, 06 Jul 2013 11:18 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Artem Bityutskiy <dedekind1@...il.com>,
	Shawn Guo <shawn.guo@...aro.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	oliver@...inagl.nl, linux-mtd@...ts.infradead.org
Subject: Re: MTD EEPROM support and driver integration

On Saturday 06 July 2013 10:28:04 Maxime Ripard wrote:
> > a) like interrupts, regs, dmas, clocks, pinctrl, reset, pwm: fixed property names
> > 
> >       regmap = <&at25 0xstart 0xlen>;
> >       regmap-names = "mac-address";
> > 
> > b) like gpio, regulator: variable property names
> > 
> >       mac-storage = <&at25 0xstart 0xlen>;
> > 
> > It's unfortunate that we already have examples of both. They are largely
> > equivalent, but the tendency is towards the first.
> 
> I don't have a strong feeling for one against another, so whatever works
> best. Both solutions will be a huge improvement anyway 
> 
> Just out of curiosity, is there any advantages besides having a fixed
> property name to the first solution?

I think it's mostly for consistency: trying to get most subsystems to
do it the same way to make it easier for people to write dts files.

A lesser point is that it simplifies the driver code if you don't
have to pass a name.


	Arnd
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