> @@ -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.
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