Re: [PATCH v1 3/4] platform/x86: asus-wireless: Register ACPI notify handler directly

[Denis Benato <denis.benato@linux.dev>]

On 2/28/26 16:12, Rafael J. Wysocki wrote:
> From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
>
> To facilitate subsequent conversion of the driver to a platform one,
> make it install an ACPI notify handler directly instead of using
> a .notify() callback in struct acpi_driver.
>
> No intentional functional impact.
Reviewed-by: Denis Benato <denis.benato@linux.dev>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
>  drivers/platform/x86/asus-wireless.c | 20 ++++++++++++++++----
>  1 file changed, 16 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/platform/x86/asus-wireless.c b/drivers/platform/x86/asus-wireless.c
> index 41227bf95878..45d41875c515 100644
> --- a/drivers/platform/x86/asus-wireless.c
> +++ b/drivers/platform/x86/asus-wireless.c
> @@ -108,9 +108,10 @@ static void led_state_set(struct led_classdev *led, enum led_brightness value)
>  	queue_work(data->wq, &data->led_work);
>  }
>  
> -static void asus_wireless_notify(struct acpi_device *adev, u32 event)
> +static void asus_wireless_notify(acpi_handle handle, u32 event, void *context)
>  {
> -	struct asus_wireless_data *data = acpi_driver_data(adev);
> +	struct asus_wireless_data *data = context;
> +	struct acpi_device *adev = data->adev;
>  
>  	dev_dbg(&adev->dev, "event=%#x\n", event);
>  	if (event != 0x88) {
> @@ -166,8 +167,18 @@ static int asus_wireless_add(struct acpi_device *adev)
>  	data->led.default_trigger = "rfkill-none";
>  	err = devm_led_classdev_register(&adev->dev, &data->led);
>  	if (err)
> -		destroy_workqueue(data->wq);
> +		goto err;
> +
> +	err = acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY,
> +					      asus_wireless_notify, data);
> +	if (err) {
> +		devm_led_classdev_unregister(&adev->dev, &data->led);
> +		goto err;
> +	}
> +	return 0;
>  
> +err:
> +	destroy_workqueue(data->wq);
>  	return err;
>  }
>  
> @@ -175,6 +186,8 @@ static void asus_wireless_remove(struct acpi_device *adev)
>  {
>  	struct asus_wireless_data *data = acpi_driver_data(adev);
>  
> +	acpi_dev_remove_notify_handler(adev, ACPI_DEVICE_NOTIFY,
> +				       asus_wireless_notify);
>  	if (data->wq) {
>  		devm_led_classdev_unregister(&adev->dev, &data->led);
>  		destroy_workqueue(data->wq);
> @@ -188,7 +201,6 @@ static struct acpi_driver asus_wireless_driver = {
>  	.ops = {
>  		.add = asus_wireless_add,
>  		.remove = asus_wireless_remove,
> -		.notify = asus_wireless_notify,
>  	},
>  };
>  module_acpi_driver(asus_wireless_driver);