linux-kernel - Re: [patch 2.6.29-rc6 1/2] regulator: enumerate voltages (v2)

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Message-Id: <200902261312.42720.david-b@pacbell.net>
Date:	Thu, 26 Feb 2009 13:12:42 -0800
From:	David Brownell <david-b@...bell.net>
To:	Mark Brown <broonie@...ena.org.uk>
Cc:	Liam Girdwood <lrg@...mlogic.co.uk>,
	lkml <linux-kernel@...r.kernel.org>,
	OMAP <linux-omap@...r.kernel.org>
Subject: Re: [patch 2.6.29-rc6 1/2] regulator: enumerate voltages (v2)

On Thursday 26 February 2009, Mark Brown wrote:
> On Thu, Feb 26, 2009 at 11:48:36AM -0800, David Brownell wrote:
> 
> > Updates since previous version:  address feedback, simplify.
> 
> Acked-by: Mark Brown <broonie@...nsource.wolfsonmicro.com>
> 
> This looks good to merge to me - coincidentally I've got a use case for
> it lined up already.  Might it be worth merging the MMC client along
> with this patch if the relevant maintainers are OK with that, could help
> get it in faster?

You mean, that example MMC code I sent?  I think it's a bit
early to merge to mainline ... only the "generate ocr_mask"
call has really been verified.  I'll send the updated version
along though.

I had thought about sending that with patches to convert the
omap_hsmmc driver over to the regulator framework.  No skin
off my back if it goes with a different set of patches though.


> Just two very minor points which might be nice to fix at some point:
> 
> > +			cmin = INT_MIN;
> > +			cmax = INT_MAX;
> > +		}
> > +
> > +		/* else require explicit machine-level constraints */
> > +		else if (cmin <= 0 || cmax <= 0 || cmax < cmin) {
> 
> That indentation is going to catch some people out :)

Maybe.


> > +		/* final: [min_uV..max_uV] valid iff constraints valid */
> > +		if (max_uV < min_uV) {
> > +			pr_err("%s: %s '%s' voltage constraints\n",
> > +				       __func__, "unsupportable", name);
> > +			ret = -EINVAL;
> 
> That style is going to hurt grepability for the error.

"grep unsupportable" ... :)

Sharing the primary string saves about three dozen bytes,
and I'm not keen on needless bloat.

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