1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 9f083a952747..6f326765f341 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -993,7 +993,7 @@ void dispc_wb_set_channel_in(enum dss_writeback_channel channel)
 static void dispc_ovl_set_burst_size(enum omap_plane plane,
                 enum omap_burst_size burst_size)
 {
-        static const unsigned shifts[] = { 6, 14, 14, 14, };
+        static const unsigned shifts[] = { 6, 14, 14, 14, 14, };
         int shift;
 
         shift = shifts[plane];
@@ -1225,6 +1225,14 @@ void dispc_ovl_compute_fifo_thresholds(enum omap_plane plane,
         if (manual_update && dss_has_feature(FEAT_OMAP3_DSI_FIFO_BUG)) {
                 *fifo_low = ovl_fifo_size - burst_size * 2;
                 *fifo_high = total_fifo_size - burst_size;
+        } else if (plane == OMAP_DSS_WB) {
+                /*
+                 * Most optimal configuration for writeback is to push out data
+                 * to the interconnect the moment writeback pushes enough pixels
+                 * in the FIFO to form a burst
+                 */
+                *fifo_low = 0;
+                *fifo_high = burst_size;
         } else {
                 *fifo_low = ovl_fifo_size - burst_size;
                 *fifo_high = total_fifo_size - buf_unit;