linux-kernel - Re: [PATCH] PM / OPP: discard duplicate OPP additions

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Message-ID: <CAKohponTH9X6AUX_0TJbRw0bUw5WQaE6oeDpGW9avTLifLGBCQ@mail.gmail.com>
Date:	Thu, 15 May 2014 11:07:33 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Inderpal Singh <inderpal.s@...sung.com>
Cc:	Nishanth Menon <nm@...com>, Pavel Machek <pavel@....cz>,
	"[Chander Kashyap" <chander.kashyap@...aro.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"Brown, Len" <len.brown@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Chander Kashyap <k.chander@...sung.com>
Subject: Re: [PATCH] PM / OPP: discard duplicate OPP additions

On 15 May 2014 11:00, Inderpal Singh <inderpal.s@...sung.com> wrote:
> On Thu, May 15, 2014 at 10:34 AM, Viresh Kumar <viresh.kumar@...aro.org> wrote:
>> On 15 May 2014 10:22, Inderpal Singh <inderpal.s@...sung.com> wrote:
>>
>>> What i am saying that "what if we are not going to re-use again ? "
>>
>> That's what I said:
>>
>> Yes, it will keep occupying some space but there is only one instance
>> of that per 'cluster' and is very much affordable instead of building it again..
>>
>> So, we may not need to free it.
>
> Its not just about cpufreq. There may be others using OPPs as well.
> For example devfreq.

And who is stopping these to use the already built ones? Exactly for
this reason I have been saying that lets not free OPPs already built.
Devfreq can simply use the ones built by cpufreq, even if cpufreq isn't
using it anymore.
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