2 files changed, 20 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index d46cf29a90aa..f0796bafa74e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -983,6 +983,13 @@ static enum omap_channel dispc_ovl_get_channel_out(enum omap_plane plane)
         return channel;
 }
 
+void dispc_wb_set_channel_in(enum dss_writeback_channel channel)
+{
+        enum omap_plane plane = OMAP_DSS_WB;
+
+        REG_FLD_MOD(DISPC_OVL_ATTRIBUTES(plane), channel, 18, 16);
+}
+
 static void dispc_ovl_set_burst_size(enum omap_plane plane,
                 enum omap_burst_size burst_size)
 {
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index 322a2be7b4c6..379e0782eefb 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -113,6 +113,17 @@ 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,
+};
+
 struct dss_clock_info {
         /* rates that we get with dividers below */
         unsigned long fck;
@@ -475,6 +486,8 @@ int dispc_mgr_get_clock_div(enum omap_channel channel,
 void dispc_mgr_setup(enum omap_channel channel,
                 struct omap_overlay_manager_info *info);
 
+void dispc_wb_set_channel_in(enum dss_writeback_channel channel);
+
 /* VENC */
 #ifdef CONFIG_OMAP2_DSS_VENC
 int venc_init_platform_driver(void) __init;