Re: [PATCH 2/6] drm: add tile_group support. (v2)

@@ -5156,3 +5158,100 @@ struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, supported_rotations); } EXPORT_SYMBOL(drm_mode_create_rotation_property);

+/**

• • DOC: Tile group
• • Tile groups are used to represent tiled monitors with a unique
• • integer identifier. Tiled monitors using DisplayID v1.3 have
• • a unique 8-byte handle, we store this in a tile group, so we
• • have a common identifier for all tiles in a monitor group.
• */

+static void drm_tile_group_free(struct kref *kref) +{

•   struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount);
  

•   struct drm_device *dev = tg->dev;
  

•   mutex_lock(&dev->mode_config.idr_mutex);
  

•   idr_remove(&dev->mode_config.tile_idr, tg->id);
  

•   mutex_lock(&dev->mode_config.idr_mutex);
  

Review not to self:

*un*lock.

Dave.