linux-kernel - Re: [PATCH 01/16] PM / OPP: Add 'supply-names' binding

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Message-ID: <20151028081742.GC28319@sirena.org.uk>
Date:	Wed, 28 Oct 2015 17:17:42 +0900
From:	Mark Brown <broonie@...nel.org>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Stephen Boyd <sboyd@...eaurora.org>, Rob Herring <robh@...nel.org>,
	Rafael Wysocki <rjw@...ysocki.net>, nm@...com,
	linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
	rob.herring@...aro.org, lee.jones@...aro.org,
	devicetree@...r.kernel.org,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	open list <linux-kernel@...r.kernel.org>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
Subject: Re: [PATCH 01/16] PM / OPP: Add 'supply-names' binding

On Tue, Oct 27, 2015 at 01:49:17PM +0530, Viresh Kumar wrote:
> On 23-10-15, 01:39, Mark Brown wrote:

> > I'm not sure that's
> > a place we want to end up just yet, I think it's safer to just have a
> > little bit of code in the kernel that glues things together in the cases
> > where this is needed.  

> So you are effectively saying that we shouldn't go ahead with multi
> regulator support in OPP library, right?

Well, I think things like libraries for getting the data tables out of
DT are fine but I'm not convinced that trying to avoid having any device
specific code at all is sufficiently clear yet - as far as I know we're
mostly looking at a fairly small subset of devices still and with things
like sequencing in the mix it's a bit worrying to me to be putting it
all into an ABI intended to be used with no knowledge of the platform.

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