linux-kernel - Re: [PATCH v2 10/11] platform/x86: asus-wmi: Switch fan boost mode

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Date:   Fri, 12 Apr 2019 22:50:47 +0200
From:   Yurii Pavlovskyi <yurii.pavlovskyi@...il.com>
To:     Daniel Drake <drake@...lessm.com>
Cc:     Corentin Chary <corentin.chary@...il.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        acpi4asus-user <acpi4asus-user@...ts.sourceforge.net>,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        linux-api@...r.kernel.org,
        Endless Linux Upstreaming Team <linux@...lessm.com>
Subject: Re: [PATCH v2 10/11] platform/x86: asus-wmi: Switch fan boost mode

On 12.04.19 10:03, Daniel Drake wrote:
> On Thu, Apr 11, 2019 at 1:47 PM Yurii Pavlovskyi
> <yurii.pavlovskyi@...il.com> wrote:
>> * 0x00 - is normal,
>> * 0x01 - is obviously turbo by the amount of noise, might be useful to
>> avoid CPU frequency throttling on high load,
>> * 0x02 - the meaning is unknown at the time as modes are not named
>> in the vendor documentation, but it does look like a quiet mode as CPU
>> temperature does increase about 10 degrees on maximum load.
> 
> I'm curious which vendor documentation you're working with here.

That would be user manual for FX505 series, which is pretty minimalistic.
It says it has a fan mode switch key and that's it. Following up on your
comment, I've searched more and actually did found their names hidden in
marketing web page on the website. You're right, they call them balanced,
overboost and silent there.

> From the spec,
> 0 = normal
> 1 = overboost
> 2 = silent

> Also you can use DSTS on the 0x00110018 device to check the exact
> capabilities supported, which you should use to refine which modes can
> be cycled through.
> Bit 0 = overboost supported
> Bit 1 = silent supported
> 
> Thanks
> Daniel
> 

Thanks! I was guessing that the 3 in DSTS must've meant something.

Appreciate your comments! Will definitely implement them. I'm going to post
the v3 patch series approximately middle of next week.

Best regards,
Yurii