diff --git a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
index 4fd8bce95d843140341bae3db3acd99ce9dad9ba..3d4c66933f518863c58b7c977a0463c9de3085a8 100644
--- a/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
+++ b/drivers/gpu/drm/amd/display/modules/power/power_helpers.c
@@ -278,7 +278,7 @@ static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters par
 	}
 }
 
-void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params)
+static void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params)
 {
 	unsigned int set = params.set;
 
@@ -452,7 +452,7 @@ void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters
 			params, ram_table);
 }
 
-void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params)
+static void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params)
 {
 	unsigned int set = params.set;
 
@@ -598,7 +598,7 @@ void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parame
 			params, ram_table, true);
 }
 
-void fill_iram_v_2_3(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params, bool big_endian)
+static void fill_iram_v_2_3(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params, bool big_endian)
 {
 	unsigned int i, j;
 	unsigned int set = params.set;