linux-kernel - Re: [PATCH v5 1/1] asus-wmi: Add support for platform

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Date:   Wed, 18 Aug 2021 19:25:34 +0000
From:   Barnabás Pőcze <pobrn@...tonmail.com>
To:     "Luke D. Jones" <luke@...nes.dev>
Cc:     linux-kernel@...r.kernel.org, hdegoede@...hat.com,
        hadess@...ess.net, platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v5 1/1] asus-wmi: Add support for platform_profile

Hi


2021. augusztus 18., szerda 21:07 keltezéssel, Luke D. Jones írta:
> Add initial support for platform_profile where the support is
> based on availability of ASUS_THROTTLE_THERMAL_POLICY.
>
> Because throttle_thermal_policy is used by platform_profile and is
> writeable separately to platform_profile any userspace changes to
> throttle_thermal_policy need to notify platform_profile.
>
> In future throttle_thermal_policy sysfs should be removed so that
> only one method controls the laptop power profile.
>
> Signed-off-by: Luke D. Jones <luke@...nes.dev>
> ---
>  drivers/platform/x86/Kconfig    |   1 +
>  drivers/platform/x86/asus-wmi.c | 130 +++++++++++++++++++++++++++++++-
>  2 files changed, 127 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index d12db6c316ea..46dec48a36c1 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> [...]
> +static int platform_profile_set(struct platform_profile_handler *pprof,
> +				enum platform_profile_option profile)
> +{
> +	struct asus_wmi *asus;
> +	int tp;
> +
> +	asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
> +
> +	switch (profile) {
> +	case PLATFORM_PROFILE_PERFORMANCE:
> +		tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
> +		break;
> +	case PLATFORM_PROFILE_BALANCED:
> +		tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
> +		break;
> +	case PLATFORM_PROFILE_QUIET:
> +		tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
> +		break;
> +	default:
> +		return -EOPNOTSUPP;
> +	}
> +
> +	asus->throttle_thermal_policy_mode = tp;
> +	return throttle_thermal_policy_write(asus);

Here the new mode will be stored even if activating it fails, no?


> +}
> [...]


Best regards,
Barnabás Pőcze