linux-kernel - Re: [PATCH v3 0/4] thermal: re-calculate k_po/k

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Message-ID: <20160106150524.GC2790@e104805>
Date:	Wed, 6 Jan 2016 15:05:24 +0000
From:	Javi Merino <javi.merino@....com>
To:	Daniel Thompson <daniel.thompson@...aro.org>
Cc:	Leo Yan <leo.yan@...aro.org>, Jonathan Corbet <corbet@....net>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	Punit Agrawal <punit.agrawal@....com>,
	Daniel Kurtz <djkurtz@...omium.org>, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v3 0/4] thermal: re-calculate k_po/k_pu when update
 sustainable power

On Wed, Jan 06, 2016 at 11:21:54AM +0000, Daniel Thompson wrote:
> On 06/01/16 10:07, Javi Merino wrote:
> >On Wed, Jan 06, 2016 at 04:53:44PM +0800, Leo Yan wrote:
> >>k_po/k_pu are two proportional term constants and essentially they have
> >>fixed ratio compared with sustainable power. In current implementation,
> >>k_po and k_pu are absolute value after calculation and cannot represent
> >>the ratio relationship with sustainable power; as a result, when change
> >>sustainable power we cannot smoothly change proportional term constant.
> >
> >In v2 Daniel said that the use case was made up.  Can you elaborate on
> >why we need this?
> 
> To be clear, I didn't say Leo's use case was made up. In truth I've
> never asked Leo what his use case is.

Sorry, I didn't mean to say that Leo had made it up.  I was just
asking for a use case and it looked to me that the "fan inhibitor
mode" was something that you guys had talked about.

Cheers,
Javi

> It was simply the use case that I used to illustrate a bug in the v1
> implementation which was made up (and which you asked for more
> details of).
> 
> 
> 
> Daniel.
> 
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