diff --git a/drivers/media/platform/rockchip/rga/rga-hw.c b/drivers/media/platform/rockchip/rga/rga-hw.c
index 0645481c9a5e..96d1b1b3fe8e 100644
--- a/drivers/media/platform/rockchip/rga/rga-hw.c
+++ b/drivers/media/platform/rockchip/rga/rga-hw.c
@@ -380,7 +380,7 @@ static void rga_cmd_set_mode(struct rga_ctx *ctx)
 	dest[(RGA_MODE_CTRL - RGA_MODE_BASE_REG) >> 2] = mode.val;
 }
 
-void rga_cmd_set(struct rga_ctx *ctx)
+static void rga_cmd_set(struct rga_ctx *ctx)
 {
 	struct rockchip_rga *rga = ctx->rga;
 
diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index 2cf3bb29a2b3..e7d1b34baf1c 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -356,7 +356,7 @@ struct rga_fmt formats[] = {
 
 #define NUM_FORMATS ARRAY_SIZE(formats)
 
-struct rga_fmt *rga_fmt_find(struct v4l2_format *f)
+static struct rga_fmt *rga_fmt_find(struct v4l2_format *f)
 {
 	unsigned int i;