linux-kernel - Re: [PATCH] longhaul: select Longhaul version 2 for capable CPUs

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Message-Id: <20091103205118.607df52b.krzysztof.h1@poczta.fm>
Date:	Tue, 3 Nov 2009 20:51:18 +0100
From:	Krzysztof Helt <krzysztof.h1@...zta.fm>
To:	Dave Jones <davej@...hat.com>
Cc:	cpufreq@...r.kernel.org, LKLM <linux-kernel@...r.kernel.org>,
	Rafal Bilski <rafalbilski@...eria.pl>
Subject: Re: [PATCH] longhaul: select Longhaul version 2 for capable CPUs

On Sat, 24 Oct 2009 23:28:14 -0400
Dave Jones <davej@...hat.com> wrote:

> On Sat, Oct 24, 2009 at 05:25:38PM +0200, Krzysztof Helt wrote:
>  > From: Krzysztof Helt <krzysztof.h1@...pl>
>  > 
>  > There is a typo in the longhaul detection code so only Longhaul v1 or Longhaul v3
>  > is selected. The Longhaul v2 is not selected even for CPUs which are capable of.
>  > 
>  > Tested on PCChips Giga Pro board. Frequency changes work and the Longhaul v2
>  > detects that the board is not capable of changing CPU voltage.
>  > 
>  > Signed-off-by: Krzysztof Helt <krzysztof.h1@...pl>
>  
> It seems we deliberately changed this two years ago, though the changelog
> is a bit sparse on details..
> 
> commit 07844252ffd81ec192a62014bada1016c9703765
> Author: Rafal Bilski <rafalbilski@...eria.pl>
> Date:   Sun Apr 22 12:26:04 2007 +0200
> 
>     [CPUFREQ] Longhaul - Revert Longhaul ver. 2
>     
>     There is something wrong with this code. It needs more
>     testing. It is better to disable it for now because support
>     for some machines will be broken.
>     
>     Signed-off-by: Rafal Bilski <rafalbilski@...eria.pl>
>     Signed-off-by: Dave Jones <davej@...hat.com>
> 
> 

Are there any chances this patch will go into the linux-next?

Regards,
Krzysztof

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