linux-kernel - Re: [PATCH v3] platform/x86: inspur-wmi: Add platform profile support

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Message-ID: <972d21dc-de29-fbac-bf04-efecfdbe565e@redhat.com>
Date:   Thu, 19 Oct 2023 14:31:18 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     艾超 <aichao@...inos.cn>,
        "ilpo.jarvinen" <ilpo.jarvinen@...ux.intel.com>,
        markgross <markgross@...nel.org>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        platform-driver-x86 <platform-driver-x86@...r.kernel.org>
Subject: Re: [PATCH v3] platform/x86: inspur-wmi: Add platform profile support

Hi,

On 10/19/23 04:20, 艾超 wrote:
> Hi.
> 
> 
>> Thanks this is much better.
> 
>> Only remaining question I have is can the platform_profile
>> setting be changed by a hotkey (directly by the hotkey,
>> so upon pressing the hotkey the EC changes the platform_profile
>> itself).
> 
>> If the answer to this is yes, is there then any event which
>> the driver could listen to and then use to notify userspace
>> about the change by calling platform_profile_notify() upon
>> receiving the event ?
> 
>> Or maybe the event will be received by the discussed
>> hotkeys driver, so that can call platform_profile_notify()
>> instead. Note platform_profile_notify() does not require a
>> platform_profile_handler pointer, so it could indeed be
>> called from a separate driver if the events are received
>> elsewhere.
> 
>> Regards,
> 
>> Hans
> 
> There is no any event need to listen by this driver. If user
> 
> pressing the hotkey, desktop applications receive
> 
> hotkeys(Fn+Q) event, then APP get the currently power mode
> and change it. The desktop applications modify brightness
> 
> based on power mode. EC can't changes the power mode
> 
> itself.

OK, that is good to know. Thank you for answering 
my questions about this.

I believe that once the few small remaining review remarks
are addressed this should be ready for merging then.

Regards,

Hans