linux-kernel - Re: [PATCH v9 16/22] ACPI: platform_profile: Add concept of a "custom" profile

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Message-ID: <5dd1fedf-fab5-df48-bf7c-6c4e48774602@linux.intel.com>
Date: Thu, 5 Dec 2024 13:50:53 +0200 (EET)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Mario Limonciello <mario.limonciello@....com>
cc: Hans de Goede <hdegoede@...hat.com>, 
    "Rafael J . Wysocki" <rafael@...nel.org>, Len Brown <lenb@...nel.org>, 
    Maximilian Luz <luzmaximilian@...il.com>, Lee Chun-Yi <jlee@...e.com>, 
    Shyam Sundar S K <Shyam-sundar.S-k@....com>, 
    Corentin Chary <corentin.chary@...il.com>, 
    "Luke D . Jones" <luke@...nes.dev>, Ike Panhc <ike.pan@...onical.com>, 
    Henrique de Moraes Holschuh <hmh@....eng.br>, 
    Alexis Belmonte <alexbelm48@...il.com>, 
    Uwe Kleine-König <u.kleine-koenig@...gutronix.de>, 
    Ai Chao <aichao@...inos.cn>, Gergo Koteles <soyer@....hu>, 
    open list <linux-kernel@...r.kernel.org>, 
    "open list:ACPI" <linux-acpi@...r.kernel.org>, 
    "open list:MICROSOFT SURFACE PLATFORM PROFILE DRIVER" <platform-driver-x86@...r.kernel.org>, 
    "open list:THINKPAD ACPI EXTRAS DRIVER" <ibm-acpi-devel@...ts.sourceforge.net>, 
    Mark Pearson <mpearson-lenovo@...ebb.ca>, 
    Matthew Schwartz <matthew.schwartz@...ux.dev>, Armin Wolf <W_Armin@....de>
Subject: Re: [PATCH v9 16/22] ACPI: platform_profile: Add concept of a "custom"
 profile

On Sun, 1 Dec 2024, Mario Limonciello wrote:

> When two profile handlers don't agree on the current profile it's ambiguous
> what to show to the legacy sysfs interface.
> 
> Add a "custom" profile string that userspace will be able to distinguish
> this situation when using the legacy sysfs interface.
> 
> Reviewed-by: Armin Wolf <W_Armin@....de>
> Tested-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
> Reviewed-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
> ---
>  drivers/acpi/platform_profile.c  | 1 +
>  include/linux/platform_profile.h | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
> index 40826876006b5..a9cd13c5fd39b 100644
> --- a/drivers/acpi/platform_profile.c
> +++ b/drivers/acpi/platform_profile.c
> @@ -20,6 +20,7 @@ static const char * const profile_names[] = {
>  	[PLATFORM_PROFILE_BALANCED] = "balanced",
>  	[PLATFORM_PROFILE_BALANCED_PERFORMANCE] = "balanced-performance",
>  	[PLATFORM_PROFILE_PERFORMANCE] = "performance",
> +	[PLATFORM_PROFILE_CUSTOM] = "custom",
>  };
>  static_assert(ARRAY_SIZE(profile_names) == PLATFORM_PROFILE_LAST);
>  
> diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
> index a888fd085c513..0682bb4c57e5d 100644
> --- a/include/linux/platform_profile.h
> +++ b/include/linux/platform_profile.h
> @@ -23,6 +23,7 @@ enum platform_profile_option {
>  	PLATFORM_PROFILE_BALANCED,
>  	PLATFORM_PROFILE_BALANCED_PERFORMANCE,
>  	PLATFORM_PROFILE_PERFORMANCE,
> +	PLATFORM_PROFILE_CUSTOM,
>  	PLATFORM_PROFILE_LAST, /*must always be last */
>  };
>  
> 

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>

-- 
 i.