linux-kernel - Re: [External] Re: [PATCH] [RFC] Documentation: Add documentation for new platform

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Message-ID: <c40d0916-a61b-3376-fedd-de815f501827@lenovo.com>
Date:   Tue, 27 Oct 2020 11:01:04 -0400
From:   Mark Pearson <markpearson@...ovo.com>
To:     Hans de Goede <hdegoede@...hat.com>,
        Elia Devito <eliadevito@...il.com>
CC:     <dvhart@...radead.org>, <mgross@...ux.intel.com>,
        <mario.limonciello@...l.com>, <hadess@...ess.net>,
        <bberg@...hat.com>, <linux-pm@...r.kernel.org>,
        <linux-acpi@...r.kernel.org>,
        <platform-driver-x86@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [External] Re: [PATCH] [RFC] Documentation: Add documentation for
 new platform_profile sysfs attribute



On 27/10/2020 09:41, Hans de Goede wrote:
> Hi Mark,
> 
> On 10/27/20 1:28 PM, Mark Pearson wrote:
>> Hi Elia
>>
>> On 27/10/2020 05:19, Elia Devito wrote:
>>> Hi to all,
>>>
>>> In data martedì 27 ottobre 2020 08:54:44 CET, Hans de Goede ha scritto:
<snip>
>>>
>>> This look good,
>>> only thing is that hp-wmi driver need a cool profile (Emphasises the computer
>>> cool to touch), if you can add it would be perfect.
>>>
>>> Regards
>>> Elia
>>>
>>>
>>>
>> Is low-power is different to cool? I figured low-power was going to be cool so combined them.
>> I could call it low-power-cool if that helps? It seems a little clunky but not too bad. I'm sure the user space folks can put sunglasses on it or something ;)
> 
> IIRC we already had this discussion, cool means cool-to-touch, so could be done by
> e.g. extra aggressive ramping up of the fans, so this is not necessarily the same
> as low-power.
> 
> Yes this is all somewhat confusing. Luckily (for us kernel folks) we have already
> sorta decided to just use the profile-names from the vendors more or less as is and
> leave figuring this out further to userspace.
> 
> The reason to use the enum + try to have a fixed list of choices is to try and
> limit the proliferation of profile-names to keep things somewhat manageable.
> 
> But as I discussed previously with Elia (*) we really need all 3 of low-power
> cool and quiet.
> 
> Regards,
> 
> Hans
> 
> 
> 
> *) I was coming at this discussion from the same angle you (Mark) are
> 
OK, I can add a cool option.

I'll get that out later today (unless Elia corrects me :))

Thanks all
Mark