drm/omap: add writeback funcs to dispc_ops

Add writeback specific dispc functions to dispc_ops so that omapdrm can
use them. Also move 'enum dss_writeback_channel' to the public
omapdss.h for omapdrm.

Signed-off-by: Tomi Valkeinen <[e-mail]>

drivers/gpu/drm/omapdrm/dss/dispc.c

···
 	return mgr_desc[channel].sync_lost_irq;
 }
 
-u32 dispc_wb_get_framedone_irq(struct dispc_device *dispc)
+static u32 dispc_wb_get_framedone_irq(struct dispc_device *dispc)
 {
 	return DISPC_IRQ_FRAMEDONEWB;
 }
···
 	mgr_fld_write(dispc, channel, DISPC_MGR_FLD_GO, 1);
 }
 
-bool dispc_wb_go_busy(struct dispc_device *dispc)
+static bool dispc_wb_go_busy(struct dispc_device *dispc)
 {
 	return REG_GET(dispc, DISPC_CONTROL2, 6, 6) == 1;
 }
 
-void dispc_wb_go(struct dispc_device *dispc)
+static void dispc_wb_go(struct dispc_device *dispc)
 {
 	enum omap_plane_id plane = OMAP_DSS_WB;
 	bool enable, go;
···
 	return r;
 }
 
-int dispc_wb_setup(struct dispc_device *dispc,
+static int dispc_wb_setup(struct dispc_device *dispc,
 		   const struct omap_dss_writeback_info *wi,
 		   bool mem_to_mem, const struct videomode *vm,
 		   enum dss_writeback_channel channel_in)
···
 	}
 
 	return 0;
+}
+
+static bool dispc_has_writeback(struct dispc_device *dispc)
+{
+	return dispc->feat->has_writeback;
 }
 
 static int dispc_ovl_enable(struct dispc_device *dispc,
···
 	.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 */

drivers/gpu/drm/omapdrm/dss/dss.h

···
 	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,
 
···
 			    enum omap_channel channel,
 			    struct dispc_clock_info *cinfo);
 void dispc_set_tv_pclk(struct dispc_device *dispc, unsigned long pclk);
-
-u32 dispc_wb_get_framedone_irq(struct dispc_device *dispc);
-bool dispc_wb_go_busy(struct dispc_device *dispc);
-void dispc_wb_go(struct dispc_device *dispc);
-void dispc_wb_set_channel_in(struct dispc_device *dispc,
-			     enum dss_writeback_channel channel);
-int dispc_wb_setup(struct dispc_device *dispc,
-		   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)

drivers/gpu/drm/omapdrm/dss/omapdss.h

···
 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)(struct omap_drm_private *priv,
 		       enum omap_channel channel,
···
 
 	const u32 *(*ovl_get_color_modes)(struct dispc_device *dispc,
 					  enum omap_plane_id plane);
+
+	u32 (*wb_get_framedone_irq)(struct dispc_device *dispc);
+	int (*wb_setup)(struct dispc_device *dispc,
+		const struct omap_dss_writeback_info *wi,
+		bool mem_to_mem, const struct videomode *vm,
+		enum dss_writeback_channel channel_in);
+	bool (*has_writeback)(struct dispc_device *dispc);
+	bool (*wb_go_busy)(struct dispc_device *dispc);
+	void (*wb_go)(struct dispc_device *dispc);
 };
 
 struct dispc_device *dispc_get_dispc(struct dss_device *dss);