Re: [PATCH 1/3] platform/x86: asus-wmi: Add userspace notification for performance mode change

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Hi,

Quick self intro: I have take over drivers/platform/x86
maintainership from Andy; and I'm working my way through
the backlog of old patches in patchwork:
https://patchwork.kernel.org/project/platform-driver-x86/list/

On 8/28/20 11:49 PM, Vasiliy Kupriakov wrote:
> When user presses Fn-F5, the driver automatically changes throttle
> thermal policy (or fan boost mode, depending on laptop model).
> 
> It would be convenient for userspace software to be able to poll on
> corresponding sysfs variable. For example, to show a notification about
> mode change.
> 
> Note that there is currently no way to handle Fn-F5 from userspace
> directly, driver does not pass it.
> 
> Signed-off-by: Vasiliy Kupriakov <rublag-ns@xxxxxxxxx>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans



> ---
>  drivers/platform/x86/asus-wmi.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 8f4acdc06b13..71559d429ba0 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -1660,6 +1660,10 @@ static int fan_boost_mode_write(struct asus_wmi *asus)
>  	pr_info("Set fan boost mode: %u\n", value);
>  	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_FAN_BOOST_MODE, value,
>  				    &retval);
> +
> +	sysfs_notify(&asus->platform_device->dev.kobj, NULL,
> +			"fan_boost_mode");
> +
>  	if (err) {
>  		pr_warn("Failed to set fan boost mode: %d\n", err);
>  		return err;
> @@ -1771,6 +1775,10 @@ static int throttle_thermal_policy_write(struct asus_wmi *asus)
>  
>  	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
>  				    value, &retval);
> +
> +	sysfs_notify(&asus->platform_device->dev.kobj, NULL,
> +			"throttle_thermal_policy");
> +
>  	if (err) {
>  		pr_warn("Failed to set throttle thermal policy: %d\n", err);
>  		return err;
> 




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