diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 2d19852553f5..ff09e2be470f 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -698,7 +698,7 @@ static u32 dispc_mgr_get_sync_lost_irq(enum omap_channel channel)
 	return mgr_desc[channel].sync_lost_irq;
 }
 
-u32 dispc_wb_get_framedone_irq(void)
+static u32 dispc_wb_get_framedone_irq(void)
 {
 	return DISPC_IRQ_FRAMEDONEWB;
 }
@@ -730,12 +730,12 @@ static void dispc_mgr_go(enum omap_channel channel)
 	mgr_fld_write(channel, DISPC_MGR_FLD_GO, 1);
 }
 
-bool dispc_wb_go_busy(void)
+static bool dispc_wb_go_busy(void)
 {
 	return REG_GET(DISPC_CONTROL2, 6, 6) == 1;
 }
 
-void dispc_wb_go(void)
+static void dispc_wb_go(void)
 {
 	enum omap_plane_id plane = OMAP_DSS_WB;
 	bool enable, go;
@@ -2668,7 +2668,7 @@ static int dispc_ovl_setup(enum omap_plane_id plane,
 	return r;
 }
 
-int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
+static int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
 		bool mem_to_mem, const struct videomode *vm,
 		enum dss_writeback_channel channel_in)
 {
@@ -2750,6 +2750,11 @@ int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
 	return 0;
 }
 
+static bool dispc_has_writeback(void)
+{
+	return dispc.feat->has_writeback;
+}
+
 static int dispc_ovl_enable(enum omap_plane_id plane, bool enable)
 {
 	DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
@@ -4553,6 +4558,12 @@ static const struct dispc_ops dispc_ops = {
 	.ovl_enable = dispc_ovl_enable,
 	.ovl_setup = dispc_ovl_setup,
 	.ovl_get_color_modes = dispc_ovl_get_color_modes,
+
+	.wb_get_framedone_irq = dispc_wb_get_framedone_irq,
+	.wb_setup = dispc_wb_setup,
+	.has_writeback = dispc_has_writeback,
+	.wb_go_busy = dispc_wb_go_busy,
+	.wb_go = dispc_wb_go,
 };
 
 /* DISPC HW IP initialisation */
diff --git a/drivers/gpu/drm/omapdrm/dss/dss.h b/drivers/gpu/drm/omapdrm/dss/dss.h
index 19143ab5393c..e2e679544e41 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss.h
+++ b/drivers/gpu/drm/omapdrm/dss/dss.h
@@ -97,17 +97,6 @@ enum dss_dsi_content_type {
 	DSS_DSI_CONTENT_GENERIC,
 };
 
-enum dss_writeback_channel {
-	DSS_WB_LCD1_MGR =	0,
-	DSS_WB_LCD2_MGR =	1,
-	DSS_WB_TV_MGR =		2,
-	DSS_WB_OVL0 =		3,
-	DSS_WB_OVL1 =		4,
-	DSS_WB_OVL2 =		5,
-	DSS_WB_OVL3 =		6,
-	DSS_WB_LCD3_MGR =	7,
-};
-
 enum dss_clk_source {
 	DSS_CLK_SRC_FCK = 0,
 
@@ -380,14 +369,6 @@ int dispc_mgr_get_clock_div(enum omap_channel channel,
 		struct dispc_clock_info *cinfo);
 void dispc_set_tv_pclk(unsigned long pclk);
 
-u32 dispc_wb_get_framedone_irq(void);
-bool dispc_wb_go_busy(void);
-void dispc_wb_go(void);
-void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
-int dispc_wb_setup(const struct omap_dss_writeback_info *wi,
-		bool mem_to_mem, const struct videomode *vm,
-		enum dss_writeback_channel channel_in);
-
 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
 static inline void dss_collect_irq_stats(u32 irqstatus, unsigned int *irq_arr)
 {
diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
index 51aefd80bcd4..2139735878c8 100644
--- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
+++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
@@ -618,6 +618,17 @@ void omapdss_set_is_initialized(bool set);
 struct device_node *dss_of_port_get_parent_device(struct device_node *port);
 u32 dss_of_port_get_port_number(struct device_node *port);
 
+enum dss_writeback_channel {
+	DSS_WB_LCD1_MGR =	0,
+	DSS_WB_LCD2_MGR =	1,
+	DSS_WB_TV_MGR =		2,
+	DSS_WB_OVL0 =		3,
+	DSS_WB_OVL1 =		4,
+	DSS_WB_OVL2 =		5,
+	DSS_WB_OVL3 =		6,
+	DSS_WB_LCD3_MGR =	7,
+};
+
 struct dss_mgr_ops {
 	int (*connect)(enum omap_channel channel,
 		struct omap_dss_device *dst);
@@ -700,6 +711,14 @@ struct dispc_ops {
 			enum omap_channel channel);
 
 	const u32 *(*ovl_get_color_modes)(enum omap_plane_id plane);
+
+	u32 (*wb_get_framedone_irq)(void);
+	int (*wb_setup)(const struct omap_dss_writeback_info *wi,
+		bool mem_to_mem, const struct videomode *vm,
+		enum dss_writeback_channel channel_in);
+	bool (*has_writeback)(void);
+	bool (*wb_go_busy)(void);
+	void (*wb_go)(void);
 };
 
 void dispc_set_ops(const struct dispc_ops *o);
