diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
index 232cc15979dda16fbc600ff4b4d554d1b8bd8c56..36630d532c18b1af8f86c365a71974eb1a5b8df0 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
@@ -137,7 +137,7 @@ static void dccg314_set_dtbclk_p_src(
 }
 
 /* Controls the generation of pixel valid for OTG in (OTG -> HPO case) */
-void dccg314_set_dtbclk_dto(
+static void dccg314_set_dtbclk_dto(
 		struct dccg *dccg,
 		const struct dtbclk_dto_params *params)
 {
@@ -181,7 +181,7 @@ void dccg314_set_dtbclk_dto(
 	}
 }
 
-void dccg314_set_dpstreamclk(
+static void dccg314_set_dpstreamclk(
 		struct dccg *dccg,
 		enum streamclk_source src,
 		int otg_inst,
@@ -220,7 +220,7 @@ void dccg314_set_dpstreamclk(
 	}
 }
 
-void dccg314_set_valid_pixel_rate(
+static void dccg314_set_valid_pixel_rate(
 		struct dccg *dccg,
 		int ref_dtbclk_khz,
 		int otg_inst,