drm: rcar-du: Add interlaced mode support

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / rcar-du / rcar_du_group.c

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c
index eb53cd9..2d3495b 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c
@@ -1,7 +1,7 @@
 /*
  * rcar_du_group.c  --  R-Car Display Unit Channels Pair
  *
- * Copyright (C) 2013 Renesas Corporation
+ * Copyright (C) 2013-2014 Renesas Electronics Corporation
  *
  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  *
@@ -111,9 +111,16 @@ void rcar_du_group_put(struct rcar_du_group *rgrp)
 
 static void __rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start)
 {
+       u32 dsysr_scm;
+
+       if (rgrp->interlace_grp)
+               dsysr_scm = DSYSR_SCM_INT_VIDEO;
+       else
+               dsysr_scm = DSYSR_SCM_INT_NONE;
+
        rcar_du_group_write(rgrp, DSYSR,
-               (rcar_du_group_read(rgrp, DSYSR) & ~(DSYSR_DRES | DSYSR_DEN)) |
-               (start ? DSYSR_DEN : DSYSR_DRES));
+            (rcar_du_group_read(rgrp, DSYSR) & ~(DSYSR_DRES | DSYSR_DEN |
+             DSYSR_SCM_MASK)) | dsysr_scm | (start ? DSYSR_DEN : DSYSR_DRES));
 }
 
 void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start)