[PATCH] drm: Drop unused drm_device_class_(un)register API

[Tvrtko Ursulin <tvrtko.ursulin@igalia.com>]

The API has been unused since commit
ed89fff97382 ("drm/ttm: drop sysfs directory")
so lets remove it.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Simona Vetter <simona@ffwll.ch>
---
 drivers/gpu/drm/drm_sysfs.c | 32 --------------------------------
 include/drm/drm_sysfs.h     |  4 ----
 2 files changed, 36 deletions(-)

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 43b2c3eaa7e4..7433bf8136cc 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -645,35 +645,3 @@ struct device *drm_sysfs_minor_alloc(struct drm_minor *minor)
 	put_device(kdev);
 	return ERR_PTR(r);
 }
-
-/**
- * drm_class_device_register - register new device with the DRM sysfs class
- * @dev: device to register
- *
- * Registers a new &struct device within the DRM sysfs class. Essentially only
- * used by ttm to have a place for its global settings. Drivers should never use
- * this.
- */
-int drm_class_device_register(struct device *dev)
-{
-	if (!drm_class || IS_ERR(drm_class))
-		return -ENOENT;
-
-	dev->class = drm_class;
-	return device_register(dev);
-}
-EXPORT_SYMBOL_GPL(drm_class_device_register);
-
-/**
- * drm_class_device_unregister - unregister device with the DRM sysfs class
- * @dev: device to unregister
- *
- * Unregisters a &struct device from the DRM sysfs class. Essentially only used
- * by ttm to have a place for its global settings. Drivers should never use
- * this.
- */
-void drm_class_device_unregister(struct device *dev)
-{
-	return device_unregister(dev);
-}
-EXPORT_SYMBOL_GPL(drm_class_device_unregister);
diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h
index 96a5d858404b..7695873a9456 100644
--- a/include/drm/drm_sysfs.h
+++ b/include/drm/drm_sysfs.h
@@ -3,13 +3,9 @@
 #define _DRM_SYSFS_H_
 
 struct drm_device;
-struct device;
 struct drm_connector;
 struct drm_property;
 
-int drm_class_device_register(struct device *dev);
-void drm_class_device_unregister(struct device *dev);
-
 void drm_sysfs_hotplug_event(struct drm_device *dev);
 void drm_sysfs_connector_hotplug_event(struct drm_connector *connector);
 void drm_sysfs_connector_property_event(struct drm_connector *connector,
-- 
2.52.0