diff --git a/drivers/gpu/drm/loongson/lsdc_ttm.c b/drivers/gpu/drm/loongson/lsdc_ttm.c
index 465f622ac05db72731dd9d33ead7d3fc414d17ff..2e42c6970c9fdc164181cb72d9d3a065c5755020 100644
--- a/drivers/gpu/drm/loongson/lsdc_ttm.c
+++ b/drivers/gpu/drm/loongson/lsdc_ttm.c
@@ -341,16 +341,12 @@ void lsdc_bo_unpin(struct lsdc_bo *lbo)
 
 void lsdc_bo_ref(struct lsdc_bo *lbo)
 {
-	struct ttm_buffer_object *tbo = &lbo->tbo;
-
-	ttm_bo_get(tbo);
+	drm_gem_object_get(&lbo->tbo.base);
 }
 
 void lsdc_bo_unref(struct lsdc_bo *lbo)
 {
-	struct ttm_buffer_object *tbo = &lbo->tbo;
-
-	ttm_bo_put(tbo);
+	drm_gem_object_put(&lbo->tbo.base);
 }
 
 int lsdc_bo_kmap(struct lsdc_bo *lbo)