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From: Viresh Kumar <viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
To: Stephen Boyd <sboyd-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: Rafael Wysocki <rjw-LthD3rsA81gm4RdzfppkhA@public.gmane.org>,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	linaro-kernel-cunTk1MwBs8s++Sfvej+rw@public.gmane.org,
	linux-pm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	mark.rutland-5wv7dgnIgG8@public.gmane.org,
	pawel.moll-5wv7dgnIgG8@public.gmane.org,
	ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org,
	galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
	nm-l0cyMroinI0@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	open list <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"Rafael J. Wysocki"
	<rafael.j.wysocki-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 1/3] PM / OPP: Add "opp-supported-hw" binding
Date: Sat, 31 Oct 2015 07:50:03 +0530	[thread overview]
Message-ID: <20151031022003.GV3716@ubuntu> (raw)
In-Reply-To: <20151030221826.GM19782-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

On 30-10-15, 15:18, Stephen Boyd wrote:
> A side-note. I wonder if it would be better style to have the
> node name be:
> 
> 		opp@600000000 {

I thought the @... had a special meaning and we might end up creating
some device for the node then? Perhaps I am mistaken.

But then, yeah it will make it more readable as you mentioned.

> At least it seems that the assumption is we can store all the
> possible combinations of OPP values for a particular frequency in
> the same node. Following this style would make dt compilation
> fail if two nodes have the same frequency.

Right.

> Also, this makes it sound like opp-supported-hw is really just
> telling us if this is a supported frequency or not for the
> particular device we're running on.

That's right.

> The current wording makes it

Of the commit log ? Or the way the nodes are written?

> sound like we could have two OPP nodes with the same frequency
> but different voltages inside them, which we're trying to
> discourage by compressing the tables into less nodes.

No no, we can't have two nodes with same frequency.

-- 
viresh
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  parent reply	other threads:[~2015-10-31  2:20 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-30  1:25 [PATCH 0/3] PM / OPP: opp-supported-hw and <prop>-name bindings Viresh Kumar
     [not found] ` <cover.1446167359.git.viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-10-30  1:25   ` [PATCH 1/3] PM / OPP: Add "opp-supported-hw" binding Viresh Kumar
2015-10-30 21:49     ` Stephen Boyd
2015-10-31  2:16       ` Viresh Kumar
2015-11-02 19:21         ` Stephen Boyd
2015-11-03  2:12           ` Viresh Kumar
2015-11-04 22:10             ` Stephen Boyd
2015-11-02 16:07       ` Viresh Kumar
2015-10-30 22:18     ` Stephen Boyd
     [not found]       ` <20151030221826.GM19782-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2015-10-31  2:20         ` Viresh Kumar [this message]
2015-11-02 15:13           ` Rob Herring
2015-11-02 16:08             ` Viresh Kumar
2015-11-02 19:20           ` Stephen Boyd
2015-11-03  2:29       ` Viresh Kumar
2015-11-04 22:08         ` Stephen Boyd
2015-10-30  1:25 ` [PATCH 2/3] PM / OPP: Add {opp-microvolt|opp-microamp|turbo-mode|opp-suspend}-<name> binding Viresh Kumar
2015-10-30 21:54   ` Stephen Boyd
2015-10-30  1:25 ` [PATCH 3/3] PM / OPP: Remove 'operating-points-names' binding Viresh Kumar
2015-10-30 21:54   ` Stephen Boyd
2015-10-30 17:26 ` [PATCH 0/3] PM / OPP: opp-supported-hw and <prop>-name bindings Rob Herring
2015-10-31  2:41   ` Viresh Kumar

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