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From: Mark Brown <broonie@kernel.org>
To: "Vaittinen, Matti" <Matti.Vaittinen@fi.rohmeurope.com>
Cc: "mark.rutland@arm.com" <mark.rutland@arm.com>,
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Subject: Re: [PATCH v6 06/10] regulator: use linear_ranges helper
Date: Wed, 25 Mar 2020 11:34:25 +0000	[thread overview]
Message-ID: <20200325113425.GC4346@sirena.org.uk> (raw)
In-Reply-To: <739a01454410a5d7acf231c92e5b3ffcae49d84c.camel@fi.rohmeurope.com>


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On Wed, Mar 25, 2020 at 06:58:56AM +0000, Vaittinen, Matti wrote:
> On Tue, 2020-03-24 at 14:24 +0000, Mark Brown wrote:
> > On Tue, Mar 24, 2020 at 10:30:54AM +0200, Matti Vaittinen wrote:

> > >  
> > > -		if (!(min_uV <= linear_max_uV && max_uV >= range-
> > > >min_uV))
> > > +		ret = linear_range_get_selector_high(range, min_uV,
> > > &sel,
> > > +						     &found);
> > > +		if (ret)
> > >  			continue;

> > Why are these going for _get_selector_high()?  Usually we try to
> > choose
> > the lowest voltage we can.

> I tried to maintain the existing logic - which is (if I am not
> mistaken) to search for first value which is equal or higher than the
> minimum. Hence we use the linear_range_get_selector_high() - which does
> not return selector for voltage smaller than given value (minimum).

OK, that's a bit confusingly named then - I'd read that as finding the
highest value within the range without registering that the function
only takes a single value so can't verify if the selector is in range or
not.  I'll also need to check that the modified code verifies that the
selector returned is within range.

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_______________________________________________
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  reply	other threads:[~2020-03-25 11:34 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24  8:27 [PATCH v6 00/10] Support ROHM BD99954 charger IC Matti Vaittinen
2020-03-24  8:29 ` [PATCH v6 03/10] lib: add linear ranges helpers Matti Vaittinen
2020-03-24 14:16   ` Mark Brown
2020-03-27 19:34   ` Linus Walleij
2020-03-24  8:30 ` [PATCH v6 06/10] regulator: use linear_ranges helper Matti Vaittinen
2020-03-24 14:24   ` Mark Brown
2020-03-25  6:58     ` Vaittinen, Matti
2020-03-25 11:34       ` Mark Brown [this message]
2020-03-25 11:46         ` Vaittinen, Matti
2020-03-24 16:41   ` Charles Keepax
2020-03-24 16:48   ` Adam Thomson

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