[media] rcar_vin: Enable VSYNC field toggle mode

By applying this patch, it sets to VSYNC field toggle mode not only
at the time of progressive mode but at the time of an interlace mode.

Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/platform/soc_camera/rcar_vin.c

@@ -130,6 +130,7 @@
 #define VNDMR2_VPS		(1 << 30)
 #define VNDMR2_HPS		(1 << 29)
 #define VNDMR2_FTEV		(1 << 17)
+#define VNDMR2_VLV(n)		((n & 0xf) << 12)
 
 #define VIN_MAX_WIDTH		2048
 #define VIN_MAX_HEIGHT		2048
@@ -1243,7 +1244,7 @@ static int rcar_vin_set_bus_param(struct soc_camera_device *icd)
 	if (ret < 0 && ret != -ENOIOCTLCMD)
 		return ret;
 
-	val = priv->field == V4L2_FIELD_NONE ? VNDMR2_FTEV : 0;
+	val = VNDMR2_FTEV | VNDMR2_VLV(1);
 	if (!(common_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW))
 		val |= VNDMR2_VPS;
 	if (!(common_flags & V4L2_MBUS_HSYNC_ACTIVE_LOW))