Re: [PATCH v7 1/4] platform/surface: gpe: use platform_device_register_full()

[Ilpo Järvinen]

On Mon, 13 Jul 2026, Bartosz Golaszewski wrote:

> Creating a software node for a given set of properties and adding it to
> a platform device can be achieved with a single call to
> platform_device_register_full(). There's nothing in this driver that
> suggests using the more fine-grained interfaces was intentional so
> switch to using the high-level helper.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>
> ---
>  drivers/platform/surface/surface_gpe.c | 39 ++++++++++------------------------
>  1 file changed, 11 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/platform/surface/surface_gpe.c b/drivers/platform/surface/surface_gpe.c
> index 40896a8544b0a4da4261ea881b1eaed62d93b32b..4ca7ad76f3b9d2b6c455a5d5b37f23a85eb69c69 100644
> --- a/drivers/platform/surface/surface_gpe.c
> +++ b/drivers/platform/surface/surface_gpe.c
> @@ -290,9 +290,9 @@ static struct platform_device *surface_gpe_device;
>  
>  static int __init surface_gpe_init(void)
>  {
> +	struct platform_device_info pdevinfo;
>  	const struct dmi_system_id *match;
>  	struct platform_device *pdev;
> -	struct fwnode_handle *fwnode;
>  	int status;
>  
>  	match = dmi_first_match(dmi_lid_device_table);
> @@ -305,44 +305,27 @@ static int __init surface_gpe_init(void)
>  	if (status)
>  		return status;
>  
> -	fwnode = fwnode_create_software_node(match->driver_data, NULL);
> -	if (IS_ERR(fwnode)) {
> -		status = PTR_ERR(fwnode);
> -		goto err_node;
> -	}
> -
> -	pdev = platform_device_alloc("surface_gpe", PLATFORM_DEVID_NONE);
> -	if (!pdev) {
> -		status = -ENOMEM;
> -		goto err_alloc;
> +	pdevinfo = (struct platform_device_info){
> +		.name = "surface_gpe",
> +		.id = PLATFORM_DEVID_NONE,
> +		.properties = match->driver_data,
> +	};
> +
> +	pdev = platform_device_register_full(&pdevinfo);
> +	if (IS_ERR(pdev)) {

Hi,

Please add an include for this and PTR_ERR().

With the missing include fixed,

Acked-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>

Thanks for doing these.

> +		platform_driver_unregister(&surface_gpe_driver);
> +		return PTR_ERR(pdev);
>  	}

-- 
 i.


>  
> -	platform_device_set_fwnode(pdev, fwnode);
> -
> -	status = platform_device_add(pdev);
> -	if (status)
> -		goto err_add;
> -
>  	surface_gpe_device = pdev;
>  	return 0;
> -
> -err_add:
> -	platform_device_put(pdev);
> -err_alloc:
> -	fwnode_remove_software_node(fwnode);
> -err_node:
> -	platform_driver_unregister(&surface_gpe_driver);
> -	return status;
>  }
>  module_init(surface_gpe_init);
>  
>  static void __exit surface_gpe_exit(void)
>  {
> -	struct fwnode_handle *fwnode = surface_gpe_device->dev.fwnode;
> -
>  	platform_device_unregister(surface_gpe_device);
>  	platform_driver_unregister(&surface_gpe_driver);
> -	fwnode_remove_software_node(fwnode);
>  }
>  module_exit(surface_gpe_exit);