linux-kernel - Re: [PATCH v2 3/5] regulator: helper routine to extract regulator_init

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Message-ID: <20111021115809.GB337@S2100-06.ap.freescale.net>
Date:	Fri, 21 Oct 2011 19:58:10 +0800
From:	Shawn Guo <shawn.guo@...escale.com>
To:	Rajendra Nayak <rnayak@...com>
CC:	<broonie@...nsource.wolfsonmicro.com>, <grant.likely@...retlab.ca>,
	<patches@...aro.org>, <tony@...mide.com>,
	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<lrg@...com>, <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 3/5] regulator: helper routine to extract
 regulator_init_data

On Fri, Oct 21, 2011 at 02:11:55PM +0530, Rajendra Nayak wrote:
[...]
> >+       /* find device_node and attach it */
> >+       rdev->dev.of_node = of_find_node_by_name(NULL, regulator_desc->name);
> 
> so would this do a complete dt search for every regulator?

Yes, with the first param being NULL, tthe entire device tree will be
searched.

> we would also need the driver names and dt names to match for this to
> work, right?
> 
Driver name does not matter.  The key for this search to work is having
regulator's name (regulator_desc->name) match device tree node's name,
case ignored.

> The approach otherwise looks fine to me and should work for both cases
> of one device per regulator and one device for all regulators.
> 

-- 
Regards,
Shawn

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