diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c b/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c
index ed301c3b2736720e744735b0a3fc60b4089416e9..0790f25c7b3b05ce952642abe1b6bc14164025b4 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_mem_input.c
@@ -361,7 +361,7 @@ static void program_grph_pixel_format(
 	enum surface_pixel_format format)
 {
 	uint32_t red_xbar = 0, blue_xbar = 0; /* no swap */
-	uint32_t grph_depth, grph_format;
+	uint32_t grph_depth = 0, grph_format = 0;
 	uint32_t sign = 0, floating = 0;
 
 	if (format == SURFACE_PIXEL_FORMAT_GRPH_ABGR8888 ||