linux-kernel - Re: [PATCH 08/22] regulator: Change ab8500 match names to reflect Device Tree

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Date:	Wed, 30 May 2012 23:01:06 +0800
From:	Lee Jones <lee.jones@...aro.org>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	Chris Ball <cjb@...top.org>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Bengt Jonsson <bengt.g.jonsson@...ricsson.com>,
	Mattias WALLIN <mattias.wallin@...ricsson.com>,
	linux-arm-kernel@...ts.infradead.org, sameo@...ux.intel.com,
	grant.likely@...retlab.ca, linux-kernel@...r.kernel.org,
	arnd@...db.de, Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH 08/22] regulator: Change ab8500 match names to reflect
 Device Tree

On 30/05/12 20:15, Mark Brown wrote:
> On Wed, May 30, 2012 at 07:40:49PM +0800, Lee Jones wrote:
>> On May 30, 2012 6:03 PM, "Mark Brown"<broonie@...nsource.wolfsonmicro.com>
>
>>> If we are changing the names then not including the ab8500 bit would
>>> seem more idiomatic - we've already worked out which chip this is by the
>>> time we're looking here.
>
>> No, Linus had the wrong end of the stick. I've just spoken to him in person.
>
>> Those are not the names of the regulators. They're the names of the Device
>> Tree nodes. The regulator names shall remain the same.
>
> Fair enough.  My point about the ab8500_ bit still stands though.

It's a Device Tree thing. I do it so we can easily see which regulator 
is driving which device(s).

I personally think:

	vin-supply = <&db8500_vape_reg>;
	vmmc-supply = <&ab8500_ldo_aux2_reg>;

Tells us so much more and is simpler to decrypt at a glance than 
something like:

	vin-supply = <&vape_reg>;
	vmmc-supply = <&ldo_aux2_reg>;

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
M: +44 77 88 633 515
Linaro.org │ Open source software for ARM SoCs
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