platform/loongarch: laptop: Stop setting acpi_device_class()

The driver populates acpi_device_class() which is never read afterward,
so make it stop doing that and drop the symbol defined specifically for
this purpose.

No intentional functional impact.

This change will facilitate the removal of "device_class" from "struct
acpi_device_pnp" in the future.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/drivers/platform/loongarch/loongson-laptop.c b/drivers/platform/loongarch/loongson-laptop.c
index 61b18ac206c9ee4546450e59b6e35f208812221e..f2dcc6d78051a0f9767fae903b4229f2af072c8f 100644 (file)
--- a/drivers/platform/loongarch/loongson-laptop.c
+++ b/drivers/platform/loongarch/loongson-laptop.c
@@ -30,7 +30,6 @@
 #define LOONGSON_ACPI_HKEY_HID "LOON0000"
 
 #define ACPI_LAPTOP_NAME "loongson-laptop"
-#define ACPI_LAPTOP_ACPI_EVENT_PREFIX "loongson"
 
 #define MAX_ACPI_ARGS                  3
 #define GENERIC_HOTKEY_MAP_MAX         64
@@ -167,8 +166,6 @@ static int __init setup_acpi_notify(struct generic_sub_driver *sub_driver)
        }
 
        sub_driver->device->driver_data = sub_driver;
-       sprintf(acpi_device_class(sub_driver->device), "%s/%s",
-               ACPI_LAPTOP_ACPI_EVENT_PREFIX, sub_driver->name);
 
        status = acpi_install_notify_handler(*sub_driver->handle,
                        sub_driver->type, dispatch_acpi_notify, sub_driver);