ACPI: sysfs: manage sysfs attributes through device core

Now that the ACPI sysfs attributes are organized around an
attribute_group, the device core can manage them.

Signed-off-by: Thomas Weißschuh <[email protected]>
Link: https://patch.msgid.link/[email protected]
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <[email protected]>

Author: t-8ch

drivers/acpi/device_sysfs.c

@@ -596,6 +596,11 @@ static const struct attribute_group acpi_group = {
 	.is_visible = acpi_attr_is_visible,
 };
 
+const struct attribute_group *acpi_groups[] = {
+	&acpi_group,
+	NULL
+};
+
 /**
  * acpi_device_setup_files - Create sysfs attributes of an ACPI device.
  * @dev: ACPI device object.
@@ -604,8 +609,6 @@ int acpi_device_setup_files(struct acpi_device *dev)
 {
 	int result = 0;
 
-	result = device_add_group(&dev->dev, &acpi_group);
-
 	acpi_expose_nondev_subnodes(&dev->dev.kobj, &dev->data);
 
 	return result;
@@ -618,5 +621,4 @@ int acpi_device_setup_files(struct acpi_device *dev)
 void acpi_device_remove_files(struct acpi_device *dev)
 {
 	acpi_hide_nondev_subnodes(&dev->data);
-	device_remove_group(&dev->dev, &acpi_group);
 }

drivers/acpi/internal.h

@@ -120,6 +120,7 @@ int acpi_tie_acpi_dev(struct acpi_device *adev);
 int acpi_device_add(struct acpi_device *device);
 int acpi_device_setup_files(struct acpi_device *dev);
 void acpi_device_remove_files(struct acpi_device *dev);
+extern const struct attribute_group *acpi_groups[];
 void acpi_device_add_finalize(struct acpi_device *device);
 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 bool acpi_device_is_enabled(const struct acpi_device *adev);

drivers/acpi/scan.c

@@ -1822,6 +1822,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 	device->dev.parent = parent ? &parent->dev : NULL;
 	device->dev.release = release;
 	device->dev.bus = &acpi_bus_type;
+	device->dev.groups = acpi_groups;
 	fwnode_init(&device->fwnode, &acpi_device_fwnode_ops);
 	acpi_set_device_status(device, ACPI_STA_DEFAULT);
 	acpi_device_get_busid(device);