media: omap3isp: preview: Fix the crop margins

commit 8b57b966 upstream.

Commit 3fdfedaa "[media] omap3isp: preview: Lower the crop margins"
accidentally changed the previewer's cropping, causing the previewer
to miss four pixels on each line, thus corrupting the final image.
Restored the removed setting.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>

drivers/media/platform/omap3isp/isppreview.c

@@ -1079,6 +1079,7 @@ static void preview_config_input_format(struct isp_prev_device *prev,
  */
 static void preview_config_input_size(struct isp_prev_device *prev, u32 active)
 {
+	const struct v4l2_mbus_framefmt *format = &prev->formats[PREV_PAD_SINK];
 	struct isp_device *isp = to_isp_device(prev);
 	unsigned int sph = prev->crop.left;
 	unsigned int eph = prev->crop.left + prev->crop.width - 1;
@@ -1086,6 +1087,14 @@ static void preview_config_input_size(struct isp_prev_device *prev, u32 active)
 	unsigned int elv = prev->crop.top + prev->crop.height - 1;
 	u32 features;
 
+	if (format->code != V4L2_MBUS_FMT_Y8_1X8 &&
+	    format->code != V4L2_MBUS_FMT_Y10_1X10) {
+		sph -= 2;
+		eph += 2;
+		slv -= 2;
+		elv += 2;
+	}
+
 	features = (prev->params.params[0].features & active)
 		 | (prev->params.params[1].features & ~active);