1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/armada/armada_output.h b/drivers/gpu/drm/armada/armada_output.h
index 4126d43b5057..3c4023e142d0 100644
--- a/drivers/gpu/drm/armada/armada_output.h
+++ b/drivers/gpu/drm/armada/armada_output.h
@@ -9,7 +9,7 @@
 #define ARMADA_CONNETOR_H
 
 #define encoder_helper_funcs(encoder) \
-        ((struct drm_encoder_helper_funcs *)encoder->helper_private)
+        ((const struct drm_encoder_helper_funcs *)encoder->helper_private)
 
 struct armada_output_type {
         int connector_type;