diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
index 489e39f6c0ac..15b7f6c7146e 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.c
+++ b/drivers/gpu/drm/msm/dp/dp_panel.c
@@ -12,6 +12,8 @@
 #include <drm/drm_of.h>
 #include <drm/drm_print.h>
 
+#include <linux/io.h>
+
 #define DP_INTF_CONFIG_DATABUS_WIDEN     BIT(4)
 
 #define DP_MAX_NUM_DP_LANES	4