linux-kernel - Re: [PATCH v2 0/4] thermal: re-calculate k_po/k

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Date:	Wed, 6 Jan 2016 16:48:23 +0800
From:	Leo Yan <leo.yan@...aro.org>
To:	Jonathan Corbet <corbet@....net>, Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	Javi Merino <javi.merino@....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,
	Daniel Thompson <daniel.thompson@...aro.org>
Subject: Re: [PATCH v2 0/4] thermal: re-calculate k_po/k_pu when update
 sustainable power

Hi all,

On Wed, Jan 06, 2016 at 04:30:19PM +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.
> 
> So this patch series introduces k_po_ratio and k_pu_ratio, which
> represent the ratio value compared against sustainable power. Also add
> sys file system nodes for them for easily update them from userspace and
> update a bit in documentation.
> 
> Changes from v1:
> * According to Eduardo' comments, move code from thermal_core to
>   power_allocator file
> * According to Daniel's review, v1 will introduce accumulated rounding
>   errors; v2 patches can dismiss this issue
> 
> Leo Yan (4):
>   thermal: power_allocator: rework proportional parameter
>   thermal: power_allocator: change k_pu_ratio/k_po_ratio as percentage
>   thermal: add sys node for k_pu_ratio/k_po_ratio
>   thermal: power_allocator: document k_pu_ratio/k_po_ratio
> 
>  Documentation/thermal/power_allocator.txt | 15 +++++++++++----
>  drivers/thermal/power_allocator.c         | 18 ++++++++++++------
>  drivers/thermal/thermal_core.c            | 23 +++++++++++++++++++++--
>  include/linux/thermal.h                   |  4 ++--
>  4 files changed, 46 insertions(+), 14 deletions(-)

Sorry for confusion.

I recognized I used duplicated version number, please drop this series;
I will send a new v3 series.

Thanks,
Leo Yan
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