diff --git a/drivers/misc/rk628/rk628_efuse.c b/drivers/misc/rk628/rk628_efuse.c
index ee41b0d0fb72..1fb0e33a321c 100644
--- a/drivers/misc/rk628/rk628_efuse.c
+++ b/drivers/misc/rk628/rk628_efuse.c
@@ -9,6 +9,7 @@
 
 #include <linux/gpio/consumer.h>
 #include "rk628.h"
+#include "rk628_efuse.h"
 
 #define EFUSE_SIZE		64
 
diff --git a/drivers/misc/rk628/rk628_hdmirx.c b/drivers/misc/rk628/rk628_hdmirx.c
index 5667f10b8356..473ee9bed174 100644
--- a/drivers/misc/rk628/rk628_hdmirx.c
+++ b/drivers/misc/rk628/rk628_hdmirx.c
@@ -93,7 +93,7 @@ struct rk628_hdmirx {
 	struct rk628_audiostate audio_state;
 };
 
-void rk628_hdmirx_reset_control_assert(struct rk628 *rk628)
+static void rk628_hdmirx_reset_control_assert(struct rk628 *rk628)
 {
 	/* presetn_hdmirx */
 	rk628_i2c_write(rk628, CRU_SOFTRST_CON02, 0x40004);
@@ -101,7 +101,7 @@ void rk628_hdmirx_reset_control_assert(struct rk628 *rk628)
 	rk628_i2c_write(rk628, CRU_SOFTRST_CON02, 0x10001000);
 }
 
-void rk628_hdmirx_reset_control_deassert(struct rk628 *rk628)
+static void rk628_hdmirx_reset_control_deassert(struct rk628 *rk628)
 {
 	/* presetn_hdmirx */
 	rk628_i2c_write(rk628, CRU_SOFTRST_CON02, 0x40000);
@@ -127,7 +127,7 @@ static u32 hdmirx_phy_read(struct rk628 *rk628, u32 offset)
 	return val;
 }
 
-void rk628_hdmirx_phy_enable(struct rk628 *rk628, bool is_hdmi2)
+static void rk628_hdmirx_phy_enable(struct rk628 *rk628, bool is_hdmi2)
 {
 	hdmirx_phy_write(rk628, 0x02, 0x1860);
 	hdmirx_phy_write(rk628, 0x03, 0x0060);
@@ -203,7 +203,7 @@ static const struct file_operations rk628_hdmirx_phy_fops = {
 	.release = single_release,
 };
 
-void rk628_hdmirx_phy_set_clrdpt(struct rk628 *rk628, bool is_8bit)
+static void rk628_hdmirx_phy_set_clrdpt(struct rk628 *rk628, bool is_8bit)
 {
 	if (is_8bit)
 		hdmirx_phy_write(rk628, 0x03, 0x0000);
diff --git a/drivers/misc/rk628/rk628_pinctrl.c b/drivers/misc/rk628/rk628_pinctrl.c
index f2da87a56f1a..19e5316cfb4f 100644
--- a/drivers/misc/rk628/rk628_pinctrl.c
+++ b/drivers/misc/rk628/rk628_pinctrl.c
@@ -6,6 +6,7 @@
  */
 
 #include "rk628.h"
+#include "rk628_gpio.h"
 
 static int rk628_calc_mux_offset(struct rk628 *rk628, int mux, int reg, int offset)
 {
diff --git a/drivers/misc/rk628/rk628_post_process.c b/drivers/misc/rk628/rk628_post_process.c
index f6479ace3b92..d2de17aed21e 100644
--- a/drivers/misc/rk628/rk628_post_process.c
+++ b/drivers/misc/rk628/rk628_post_process.c
@@ -9,6 +9,7 @@
 #include "rk628.h"
 #include "rk628_config.h"
 #include "rk628_cru.h"
+#include "rk628_post_process.h"
 
 #define PQ_CSC_HUE_TABLE_NUM			256
 #define PQ_CSC_MODE_COEF_COMMENT_LEN		32
@@ -1037,30 +1038,6 @@ static const struct csc_mapping csc_mapping_table[] = {
 	},
 };
 
-static const struct rk_pq_csc_coef r2y_for_y2y = {
-	306, 601, 117,
-	-151, -296, 446,
-	630, -527, -102,
-};
-
-static const struct rk_pq_csc_coef y2r_for_y2y = {
-	1024, -0, 1167,
-	1024, -404, -594,
-	1024, 2081, -1,
-};
-
-static const struct rk_pq_csc_coef rgb_input_swap_matrix = {
-	0, 0, 1,
-	1, 0, 0,
-	0, 1, 0,
-};
-
-static const struct rk_pq_csc_coef yuv_output_swap_matrix = {
-	0, 0, 1,
-	1, 0, 0,
-	0, 1, 0,
-};
-
 static bool is_rgb_format(u64 format)
 {
 	switch (format) {