linux-kernel - Re: [PATCH] thermal: of: Allow selection of thermal governor in DT

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Date:   Mon, 5 Mar 2018 22:11:12 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Amit Kucheria <amit.kucheria@...aro.org>,
        devicetree@...r.kernel.org
Cc:     Ram Chandrasekar <rkumbako@...eaurora.org>, ilina@...eaurora.org,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] thermal: of: Allow selection of thermal governor in DT

On 05/03/2018 19:36, Amit Kucheria wrote:
> From: Ram Chandrasekar <rkumbako@...eaurora.org>
> 
> There is currently no way for the governor to be selected for each thermal
> zone in devicetree. This results in the default governor being used for all
> thermal zones even though no such restriction exists in the core code.
> 
> Add support for specifying the thermal governor to be used for a thermal
> zone in the devicetree. The devicetree config should specify the governor
> name as a string that matches any available governors. If not specified, we
> maintain the current behaviour of using the default governor.
> 
> Signed-off-by: Ram Chandrasekar <rkumbako@...eaurora.org>
> Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>

Why not create a kernel parameter (eg. thermal.governor=) ? So everyone
can gain benefit of this feature. And in order to specify that from the
DT, add the 'chosen' node and bootargs with the desired kernel parameter?




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